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third-party-mirror / orbit / refs/heads/master / . / qt-everywhere-src-5.15.1 / qtdeclarative / src / quick / items / qquicktextinput.cpp
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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
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****************************************************************************/
#include "qquicktextinput_p.h"
#include "qquicktextinput_p_p.h"
#include "qquickwindow.h"
#include <private/qqmlglobal_p.h>
#include <private/qv4scopedvalue_p.h>
#include <QtCore/qcoreapplication.h>
#include <QtCore/qmimedata.h>
#include <QtQml/qqmlinfo.h>
#include <QtGui/qevent.h>
#include <QTextBoundaryFinder>
#include "qquicktextnode_p.h"
#include <QtQuick/qsgsimplerectnode.h>
#include <QtGui/qstylehints.h>
#include <QtGui/qinputmethod.h>
#include <QtCore/qmath.h>
#if QT_CONFIG(accessibility)
#include "qaccessible.h"
#include "qquickaccessibleattached_p.h"
#endif
#include <QtGui/private/qtextengine_p.h>
#include <QtGui/private/qinputcontrol_p.h>
QT_BEGIN_NAMESPACE
DEFINE_BOOL_CONFIG_OPTION(qmlDisableDistanceField, QML_DISABLE_DISTANCEFIELD)
/*!
\qmltype TextInput
\instantiates QQuickTextInput
\inqmlmodule QtQuick
\ingroup qtquick-visual
\ingroup qtquick-input
\inherits Item
\brief Displays an editable line of text.
The TextInput type displays a single line of editable plain text.
TextInput is used to accept a line of text input. Input constraints
can be placed on a TextInput item (for example, through a \l validator or \l inputMask),
and setting \l echoMode to an appropriate value enables TextInput to be used for
a password input field.
On \macos, the Up/Down key bindings for Home/End are explicitly disabled.
If you want such bindings (on any platform), you will need to construct them in QML.
\sa TextEdit, Text
*/
QQuickTextInput::QQuickTextInput(QQuickItem* parent)
: QQuickImplicitSizeItem(*(new QQuickTextInputPrivate), parent)
{
Q_D(QQuickTextInput);
d->init();
}
QQuickTextInput::QQuickTextInput(QQuickTextInputPrivate &dd, QQuickItem *parent)
: QQuickImplicitSizeItem(dd, parent)
{
Q_D(QQuickTextInput);
d->init();
}
QQuickTextInput::~QQuickTextInput()
{
}
void QQuickTextInput::componentComplete()
{
Q_D(QQuickTextInput);
QQuickImplicitSizeItem::componentComplete();
d->checkIsValid();
d->updateLayout();
updateCursorRectangle();
if (d->cursorComponent && isCursorVisible())
QQuickTextUtil::createCursor(d);
}
/*!
\qmlproperty string QtQuick::TextInput::text
The text in the TextInput.
\sa clear()
*/
QString QQuickTextInput::text() const
{
Q_D(const QQuickTextInput);
QString content = d->m_text;
QString res = d->m_maskData ? d->stripString(content) : content;
return (res.isNull() ? QString::fromLatin1("") : res);
}
void QQuickTextInput::setText(const QString &s)
{
Q_D(QQuickTextInput);
if (s == text())
return;
#if QT_CONFIG(im)
d->cancelPreedit();
#endif
d->internalSetText(s, -1, false);
}
/*!
\qmlproperty enumeration QtQuick::TextInput::renderType
Override the default rendering type for this component.
Supported render types are:
\list
\li Text.QtRendering
\li Text.NativeRendering
\endlist
Select Text.NativeRendering if you prefer text to look native on the target platform and do
not require advanced features such as transformation of the text. Using such features in
combination with the NativeRendering render type will lend poor and sometimes pixelated
results.
The default rendering type is determined by \l QQuickWindow::textRenderType().
*/
QQuickTextInput::RenderType QQuickTextInput::renderType() const
{
Q_D(const QQuickTextInput);
return d->renderType;
}
void QQuickTextInput::setRenderType(QQuickTextInput::RenderType renderType)
{
Q_D(QQuickTextInput);
if (d->renderType == renderType)
return;
d->renderType = renderType;
emit renderTypeChanged();
if (isComponentComplete())
d->updateLayout();
}
/*!
\qmlproperty int QtQuick::TextInput::length
Returns the total number of characters in the TextInput item.
If the TextInput has an inputMask the length will include mask characters and may differ
from the length of the string returned by the \l text property.
This property can be faster than querying the length the \l text property as it doesn't
require any copying or conversion of the TextInput's internal string data.
*/
int QQuickTextInput::length() const
{
Q_D(const QQuickTextInput);
return d->m_text.length();
}
/*!
\qmlmethod string QtQuick::TextInput::getText(int start, int end)
Returns the section of text that is between the \a start and \a end positions.
If the TextInput has an inputMask the length will include mask characters.
*/
QString QQuickTextInput::getText(int start, int end) const
{
Q_D(const QQuickTextInput);
if (start > end)
qSwap(start, end);
return d->m_text.mid(start, end - start);
}
QString QQuickTextInputPrivate::realText() const
{
QString res = m_maskData ? stripString(m_text) : m_text;
return (res.isNull() ? QString::fromLatin1("") : res);
}
/*!
\qmlproperty string QtQuick::TextInput::font.family
Sets the family name of the font.
The family name is case insensitive and may optionally include a foundry name, e.g. "Helvetica [Cronyx]".
If the family is available from more than one foundry and the foundry isn't specified, an arbitrary foundry is chosen.
If the family isn't available a family will be set using the font matching algorithm.
*/
/*!
\qmlproperty string QtQuick::TextInput::font.styleName
\since 5.6
Sets the style name of the font.
The style name is case insensitive. If set, the font will be matched against style name instead
of the font properties \l font.weight, \l font.bold and \l font.italic.
*/
/*!
\qmlproperty bool QtQuick::TextInput::font.bold
Sets whether the font weight is bold.
*/
/*!
\qmlproperty enumeration QtQuick::TextInput::font.weight
Sets the font's weight.
The weight can be one of:
\list
\li Font.Thin
\li Font.Light
\li Font.ExtraLight
\li Font.Normal - the default
\li Font.Medium
\li Font.DemiBold
\li Font.Bold
\li Font.ExtraBold
\li Font.Black
\endlist
\qml
TextInput { text: "Hello"; font.weight: Font.DemiBold }
\endqml
*/
/*!
\qmlproperty bool QtQuick::TextInput::font.italic
Sets whether the font has an italic style.
*/
/*!
\qmlproperty bool QtQuick::TextInput::font.underline
Sets whether the text is underlined.
*/
/*!
\qmlproperty bool QtQuick::TextInput::font.strikeout
Sets whether the font has a strikeout style.
*/
/*!
\qmlproperty real QtQuick::TextInput::font.pointSize
Sets the font size in points. The point size must be greater than zero.
*/
/*!
\qmlproperty int QtQuick::TextInput::font.pixelSize
Sets the font size in pixels.
Using this function makes the font device dependent.
Use \c pointSize to set the size of the font in a device independent manner.
*/
/*!
\qmlproperty real QtQuick::TextInput::font.letterSpacing
Sets the letter spacing for the font.
Letter spacing changes the default spacing between individual letters in the font.
A positive value increases the letter spacing by the corresponding pixels; a negative value decreases the spacing.
*/
/*!
\qmlproperty real QtQuick::TextInput::font.wordSpacing
Sets the word spacing for the font.
Word spacing changes the default spacing between individual words.
A positive value increases the word spacing by a corresponding amount of pixels,
while a negative value decreases the inter-word spacing accordingly.
*/
/*!
\qmlproperty enumeration QtQuick::TextInput::font.capitalization
Sets the capitalization for the text.
\list
\li Font.MixedCase - This is the normal text rendering option where no capitalization change is applied.
\li Font.AllUppercase - This alters the text to be rendered in all uppercase type.
\li Font.AllLowercase - This alters the text to be rendered in all lowercase type.
\li Font.SmallCaps - This alters the text to be rendered in small-caps type.
\li Font.Capitalize - This alters the text to be rendered with the first character of each word as an uppercase character.
\endlist
\qml
TextInput { text: "Hello"; font.capitalization: Font.AllLowercase }
\endqml
*/
/*!
\qmlproperty enumeration QtQuick::TextInput::font.hintingPreference
\since 5.8
Sets the preferred hinting on the text. This is a hint to the underlying text rendering system
to use a certain level of hinting, and has varying support across platforms. See the table in
the documentation for QFont::HintingPreference for more details.
\note This property only has an effect when used together with render type TextInput.NativeRendering.
\list
\value Font.PreferDefaultHinting - Use the default hinting level for the target platform.
\value Font.PreferNoHinting - If possible, render text without hinting the outlines
of the glyphs. The text layout will be typographically accurate, using the same metrics
as are used e.g. when printing.
\value Font.PreferVerticalHinting - If possible, render text with no horizontal hinting,
but align glyphs to the pixel grid in the vertical direction. The text will appear
crisper on displays where the density is too low to give an accurate rendering
of the glyphs. But since the horizontal metrics of the glyphs are unhinted, the text's
layout will be scalable to higher density devices (such as printers) without impacting
details such as line breaks.
\value Font.PreferFullHinting - If possible, render text with hinting in both horizontal and
vertical directions. The text will be altered to optimize legibility on the target
device, but since the metrics will depend on the target size of the text, the positions
of glyphs, line breaks, and other typographical detail will not scale, meaning that a
text layout may look different on devices with different pixel densities.
\endlist
\qml
TextInput { text: "Hello"; renderType: TextInput.NativeRendering; font.hintingPreference: Font.PreferVerticalHinting }
\endqml
*/
/*!
\qmlproperty bool QtQuick::TextInput::font.kerning
\since 5.10
Enables or disables the kerning OpenType feature when shaping the text. Disabling this may
improve performance when creating or changing the text, at the expense of some cosmetic
features. The default value is true.
\qml
TextInput { text: "OATS FLAVOUR WAY"; font.kerning: false }
\endqml
*/
/*!
\qmlproperty bool QtQuick::TextInput::font.preferShaping
\since 5.10
Sometimes, a font will apply complex rules to a set of characters in order to
display them correctly. In some writing systems, such as Brahmic scripts, this is
required in order for the text to be legible, but in e.g. Latin script, it is merely
a cosmetic feature. Setting the \c preferShaping property to false will disable all
such features when they are not required, which will improve performance in most cases.
The default value is true.
\qml
TextInput { text: "Some text"; font.preferShaping: false }
\endqml
*/
QFont QQuickTextInput::font() const
{
Q_D(const QQuickTextInput);
return d->sourceFont;
}
void QQuickTextInput::setFont(const QFont &font)
{
Q_D(QQuickTextInput);
if (d->sourceFont == font)
return;
d->sourceFont = font;
QFont oldFont = d->font;
d->font = font;
if (d->font.pointSizeF() != -1) {
// 0.5pt resolution
qreal size = qRound(d->font.pointSizeF()*2.0);
d->font.setPointSizeF(size/2.0);
}
if (oldFont != d->font) {
d->updateLayout();
updateCursorRectangle();
#if QT_CONFIG(im)
updateInputMethod(Qt::ImCursorRectangle | Qt::ImFont | Qt::ImAnchorRectangle);
#endif
}
emit fontChanged(d->sourceFont);
}
/*!
\qmlproperty color QtQuick::TextInput::color
The text color.
*/
QColor QQuickTextInput::color() const
{
Q_D(const QQuickTextInput);
return d->color;
}
void QQuickTextInput::setColor(const QColor &c)
{
Q_D(QQuickTextInput);
if (c != d->color) {
d->color = c;
d->textLayoutDirty = true;
d->updateType = QQuickTextInputPrivate::UpdatePaintNode;
polish();
update();
emit colorChanged();
}
}
/*!
\qmlproperty color QtQuick::TextInput::selectionColor
The text highlight color, used behind selections.
*/
QColor QQuickTextInput::selectionColor() const
{
Q_D(const QQuickTextInput);
return d->selectionColor;
}
void QQuickTextInput::setSelectionColor(const QColor &color)
{
Q_D(QQuickTextInput);
if (d->selectionColor == color)
return;
d->selectionColor = color;
if (d->hasSelectedText()) {
d->textLayoutDirty = true;
d->updateType = QQuickTextInputPrivate::UpdatePaintNode;
polish();
update();
}
emit selectionColorChanged();
}
/*!
\qmlproperty color QtQuick::TextInput::selectedTextColor
The highlighted text color, used in selections.
*/
QColor QQuickTextInput::selectedTextColor() const
{
Q_D(const QQuickTextInput);
return d->selectedTextColor;
}
void QQuickTextInput::setSelectedTextColor(const QColor &color)
{
Q_D(QQuickTextInput);
if (d->selectedTextColor == color)
return;
d->selectedTextColor = color;
if (d->hasSelectedText()) {
d->textLayoutDirty = true;
d->updateType = QQuickTextInputPrivate::UpdatePaintNode;
polish();
update();
}
emit selectedTextColorChanged();
}
/*!
\qmlproperty enumeration QtQuick::TextInput::horizontalAlignment
\qmlproperty enumeration QtQuick::TextInput::effectiveHorizontalAlignment
\qmlproperty enumeration QtQuick::TextInput::verticalAlignment
Sets the horizontal alignment of the text within the TextInput item's
width and height. By default, the text alignment follows the natural alignment
of the text, for example text that is read from left to right will be aligned to
the left.
TextInput does not have vertical alignment, as the natural height is
exactly the height of the single line of text. If you set the height
manually to something larger, TextInput will always be top aligned
vertically. You can use anchors to align it however you want within
another item.
The valid values for \c horizontalAlignment are \c TextInput.AlignLeft, \c TextInput.AlignRight and
\c TextInput.AlignHCenter.
Valid values for \c verticalAlignment are \c TextInput.AlignTop (default),
\c TextInput.AlignBottom \c TextInput.AlignVCenter.
When using the attached property LayoutMirroring::enabled to mirror application
layouts, the horizontal alignment of text will also be mirrored. However, the property
\c horizontalAlignment will remain unchanged. To query the effective horizontal alignment
of TextInput, use the read-only property \c effectiveHorizontalAlignment.
*/
QQuickTextInput::HAlignment QQuickTextInput::hAlign() const
{
Q_D(const QQuickTextInput);
return d->hAlign;
}
void QQuickTextInput::setHAlign(HAlignment align)
{
Q_D(QQuickTextInput);
bool forceAlign = d->hAlignImplicit && d->effectiveLayoutMirror;
d->hAlignImplicit = false;
if (d->setHAlign(align, forceAlign) && isComponentComplete()) {
d->updateLayout();
updateCursorRectangle();
}
}
void QQuickTextInput::resetHAlign()
{
Q_D(QQuickTextInput);
d->hAlignImplicit = true;
if (d->determineHorizontalAlignment() && isComponentComplete()) {
d->updateLayout();
updateCursorRectangle();
}
}
QQuickTextInput::HAlignment QQuickTextInput::effectiveHAlign() const
{
Q_D(const QQuickTextInput);
QQuickTextInput::HAlignment effectiveAlignment = d->hAlign;
if (!d->hAlignImplicit && d->effectiveLayoutMirror) {
switch (d->hAlign) {
case QQuickTextInput::AlignLeft:
effectiveAlignment = QQuickTextInput::AlignRight;
break;
case QQuickTextInput::AlignRight:
effectiveAlignment = QQuickTextInput::AlignLeft;
break;
default:
break;
}
}
return effectiveAlignment;
}
bool QQuickTextInputPrivate::setHAlign(QQuickTextInput::HAlignment alignment, bool forceAlign)
{
Q_Q(QQuickTextInput);
if ((hAlign != alignment || forceAlign) && alignment <= QQuickTextInput::AlignHCenter) { // justify not supported
QQuickTextInput::HAlignment oldEffectiveHAlign = q->effectiveHAlign();
hAlign = alignment;
emit q->horizontalAlignmentChanged(alignment);
if (oldEffectiveHAlign != q->effectiveHAlign())
emit q->effectiveHorizontalAlignmentChanged();
return true;
}
return false;
}
Qt::LayoutDirection QQuickTextInputPrivate::textDirection() const
{
QString text = m_text;
#if QT_CONFIG(im)
if (text.isEmpty())
text = m_textLayout.preeditAreaText();
#endif
const QChar *character = text.constData();
while (!character->isNull()) {
switch (character->direction()) {
case QChar::DirL:
return Qt::LeftToRight;
case QChar::DirR:
case QChar::DirAL:
case QChar::DirAN:
return Qt::RightToLeft;
default:
break;
}
character++;
}
return Qt::LayoutDirectionAuto;
}
Qt::LayoutDirection QQuickTextInputPrivate::layoutDirection() const
{
Qt::LayoutDirection direction = m_layoutDirection;
if (direction == Qt::LayoutDirectionAuto) {
direction = textDirection();
#if QT_CONFIG(im)
if (direction == Qt::LayoutDirectionAuto)
direction = QGuiApplication::inputMethod()->inputDirection();
#endif
}
return (direction == Qt::LayoutDirectionAuto) ? Qt::LeftToRight : direction;
}
bool QQuickTextInputPrivate::determineHorizontalAlignment()
{
if (hAlignImplicit) {
// if no explicit alignment has been set, follow the natural layout direction of the text
Qt::LayoutDirection direction = textDirection();
#if QT_CONFIG(im)
if (direction == Qt::LayoutDirectionAuto)
direction = QGuiApplication::inputMethod()->inputDirection();
#endif
return setHAlign(direction == Qt::RightToLeft ? QQuickTextInput::AlignRight : QQuickTextInput::AlignLeft);
}
return false;
}
QQuickTextInput::VAlignment QQuickTextInput::vAlign() const
{
Q_D(const QQuickTextInput);
return d->vAlign;
}
void QQuickTextInput::setVAlign(QQuickTextInput::VAlignment alignment)
{
Q_D(QQuickTextInput);
if (alignment == d->vAlign)
return;
d->vAlign = alignment;
emit verticalAlignmentChanged(d->vAlign);
if (isComponentComplete()) {
updateCursorRectangle();
d->updateBaselineOffset();
}
}
/*!
\qmlproperty enumeration QtQuick::TextInput::wrapMode
Set this property to wrap the text to the TextInput item's width.
The text will only wrap if an explicit width has been set.
\list
\li TextInput.NoWrap - no wrapping will be performed. If the text contains insufficient newlines, then implicitWidth will exceed a set width.
\li TextInput.WordWrap - wrapping is done on word boundaries only. If a word is too long, implicitWidth will exceed a set width.
\li TextInput.WrapAnywhere - wrapping is done at any point on a line, even if it occurs in the middle of a word.
\li TextInput.Wrap - if possible, wrapping occurs at a word boundary; otherwise it will occur at the appropriate point on the line, even in the middle of a word.
\endlist
The default is TextInput.NoWrap. If you set a width, consider using TextInput.Wrap.
*/
QQuickTextInput::WrapMode QQuickTextInput::wrapMode() const
{
Q_D(const QQuickTextInput);
return d->wrapMode;
}
void QQuickTextInput::setWrapMode(WrapMode mode)
{
Q_D(QQuickTextInput);
if (mode == d->wrapMode)
return;
d->wrapMode = mode;
d->updateLayout();
updateCursorRectangle();
emit wrapModeChanged();
}
void QQuickTextInputPrivate::mirrorChange()
{
Q_Q(QQuickTextInput);
if (q->isComponentComplete()) {
if (!hAlignImplicit && (hAlign == QQuickTextInput::AlignRight || hAlign == QQuickTextInput::AlignLeft)) {
q->updateCursorRectangle();
emit q->effectiveHorizontalAlignmentChanged();
}
}
}
/*!
\qmlproperty bool QtQuick::TextInput::readOnly
Sets whether user input can modify the contents of the TextInput.
If readOnly is set to true, then user input will not affect the text
property. Any bindings or attempts to set the text property will still
work.
*/
bool QQuickTextInput::isReadOnly() const
{
Q_D(const QQuickTextInput);
return d->m_readOnly;
}
void QQuickTextInput::setReadOnly(bool ro)
{
Q_D(QQuickTextInput);
if (d->m_readOnly == ro)
return;
#if QT_CONFIG(im)
setFlag(QQuickItem::ItemAcceptsInputMethod, !ro);
#endif
d->m_readOnly = ro;
d->setCursorPosition(d->end());
#if QT_CONFIG(im)
updateInputMethod(Qt::ImEnabled);
#endif
q_canPasteChanged();
d->emitUndoRedoChanged();
emit readOnlyChanged(ro);
if (ro) {
setCursorVisible(false);
} else if (hasActiveFocus()) {
setCursorVisible(true);
}
update();
}
/*!
\qmlproperty int QtQuick::TextInput::maximumLength
The maximum permitted length of the text in the TextInput.
If the text is too long, it is truncated at the limit.
By default, this property contains a value of 32767.
*/
int QQuickTextInput::maxLength() const
{
Q_D(const QQuickTextInput);
return d->m_maxLength;
}
void QQuickTextInput::setMaxLength(int ml)
{
Q_D(QQuickTextInput);
if (d->m_maxLength == ml || d->m_maskData)
return;
d->m_maxLength = ml;
d->internalSetText(d->m_text, -1, false);
emit maximumLengthChanged(ml);
}
/*!
\qmlproperty bool QtQuick::TextInput::cursorVisible
Set to true when the TextInput shows a cursor.
This property is set and unset when the TextInput gets active focus, so that other
properties can be bound to whether the cursor is currently showing. As it
gets set and unset automatically, when you set the value yourself you must
keep in mind that your value may be overwritten.
It can be set directly in script, for example if a KeyProxy might
forward keys to it and you desire it to look active when this happens
(but without actually giving it active focus).
It should not be set directly on the item, like in the below QML,
as the specified value will be overridden and lost on focus changes.
\code
TextInput {
text: "Text"
cursorVisible: false
}
\endcode
In the above snippet the cursor will still become visible when the
TextInput gains active focus.
*/
bool QQuickTextInput::isCursorVisible() const
{
Q_D(const QQuickTextInput);
return d->cursorVisible;
}
void QQuickTextInput::setCursorVisible(bool on)
{
Q_D(QQuickTextInput);
if (d->cursorVisible == on)
return;
d->cursorVisible = on;
if (on && isComponentComplete())
QQuickTextUtil::createCursor(d);
if (!d->cursorItem)
d->updateCursorBlinking();
emit cursorVisibleChanged(d->cursorVisible);
}
/*!
\qmlproperty int QtQuick::TextInput::cursorPosition
The position of the cursor in the TextInput.
*/
int QQuickTextInput::cursorPosition() const
{
Q_D(const QQuickTextInput);
return d->m_cursor;
}
void QQuickTextInput::setCursorPosition(int cp)
{
Q_D(QQuickTextInput);
if (cp < 0 || cp > text().length())
return;
d->moveCursor(cp);
}
/*!
\qmlproperty rectangle QtQuick::TextInput::cursorRectangle
The rectangle where the standard text cursor is rendered within the text input. Read only.
The position and height of a custom cursorDelegate are updated to follow the cursorRectangle
automatically when it changes. The width of the delegate is unaffected by changes in the
cursor rectangle.
*/
QRectF QQuickTextInput::cursorRectangle() const
{
Q_D(const QQuickTextInput);
int c = d->m_cursor;
#if QT_CONFIG(im)
c += d->m_preeditCursor;
#endif
if (d->m_echoMode == NoEcho)
c = 0;
QTextLine l = d->m_textLayout.lineForTextPosition(c);
if (!l.isValid())
return QRectF();
qreal x = l.cursorToX(c) - d->hscroll + leftPadding();
qreal y = l.y() - d->vscroll + topPadding();
qreal w = 1;
if (d->overwriteMode) {
if (c < text().length())
w = l.cursorToX(c + 1) - x;
else
w = QFontMetrics(font()).horizontalAdvance(QLatin1Char(' ')); // in sync with QTextLine::draw()
}
return QRectF(x, y, w, l.height());
}
/*!
\qmlproperty int QtQuick::TextInput::selectionStart
The cursor position before the first character in the current selection.
This property is read-only. To change the selection, use select(start,end),
selectAll(), or selectWord().
\sa selectionEnd, cursorPosition, selectedText
*/
int QQuickTextInput::selectionStart() const
{
Q_D(const QQuickTextInput);
return d->lastSelectionStart;
}
/*!
\qmlproperty int QtQuick::TextInput::selectionEnd
The cursor position after the last character in the current selection.
This property is read-only. To change the selection, use select(start,end),
selectAll(), or selectWord().
\sa selectionStart, cursorPosition, selectedText
*/
int QQuickTextInput::selectionEnd() const
{
Q_D(const QQuickTextInput);
return d->lastSelectionEnd;
}
/*!
\qmlmethod QtQuick::TextInput::select(int start, int end)
Causes the text from \a start to \a end to be selected.
If either start or end is out of range, the selection is not changed.
After calling this, selectionStart will become the lesser
and selectionEnd will become the greater (regardless of the order passed
to this method).
\sa selectionStart, selectionEnd
*/
void QQuickTextInput::select(int start, int end)
{
Q_D(QQuickTextInput);
if (start < 0 || end < 0 || start > d->m_text.length() || end > d->m_text.length())
return;
d->setSelection(start, end-start);
}
/*!
\qmlproperty string QtQuick::TextInput::selectedText
This read-only property provides the text currently selected in the
text input.
It is equivalent to the following snippet, but is faster and easier
to use.
\js
myTextInput.text.toString().substring(myTextInput.selectionStart,
myTextInput.selectionEnd);
\endjs
*/
QString QQuickTextInput::selectedText() const
{
Q_D(const QQuickTextInput);
return d->selectedText();
}
/*!
\qmlproperty bool QtQuick::TextInput::activeFocusOnPress
Whether the TextInput should gain active focus on a mouse press. By default this is
set to true.
*/
bool QQuickTextInput::focusOnPress() const
{
Q_D(const QQuickTextInput);
return d->focusOnPress;
}
void QQuickTextInput::setFocusOnPress(bool b)
{
Q_D(QQuickTextInput);
if (d->focusOnPress == b)
return;
d->focusOnPress = b;
emit activeFocusOnPressChanged(d->focusOnPress);
}
/*!
\qmlproperty bool QtQuick::TextInput::autoScroll
Whether the TextInput should scroll when the text is longer than the width. By default this is
set to true.
\sa ensureVisible()
*/
bool QQuickTextInput::autoScroll() const
{
Q_D(const QQuickTextInput);
return d->autoScroll;
}
void QQuickTextInput::setAutoScroll(bool b)
{
Q_D(QQuickTextInput);
if (d->autoScroll == b)
return;
d->autoScroll = b;
//We need to repaint so that the scrolling is taking into account.
updateCursorRectangle();
emit autoScrollChanged(d->autoScroll);
}
/*!
\qmlproperty Validator QtQuick::TextInput::validator
Allows you to set a validator on the TextInput. When a validator is set
the TextInput will only accept input which leaves the text property in
an acceptable or intermediate state. The accepted signal will only be sent
if the text is in an acceptable state when enter is pressed.
Currently supported validators are IntValidator, DoubleValidator,
RegExpValidator and RegularExpressionValidator. An example of using
validators is shown below, which allows input of integers between 11 and 31
into the text input:
\code
import QtQuick 2.0
TextInput{
validator: IntValidator{bottom: 11; top: 31;}
focus: true
}
\endcode
\sa acceptableInput, inputMask
*/
QValidator* QQuickTextInput::validator() const
{
#if !QT_CONFIG(validator)
return 0;
#else
Q_D(const QQuickTextInput);
return d->m_validator;
#endif // validator
}
void QQuickTextInput::setValidator(QValidator* v)
{
#if !QT_CONFIG(validator)
Q_UNUSED(v);
#else
Q_D(QQuickTextInput);
if (d->m_validator == v)
return;
if (d->m_validator) {
qmlobject_disconnect(
d->m_validator, QValidator, SIGNAL(changed()),
this, QQuickTextInput, SLOT(q_validatorChanged()));
}
d->m_validator = v;
if (d->m_validator) {
qmlobject_connect(
d->m_validator, QValidator, SIGNAL(changed()),
this, QQuickTextInput, SLOT(q_validatorChanged()));
}
if (isComponentComplete())
d->checkIsValid();
emit validatorChanged();
#endif // validator
}
#if QT_CONFIG(validator)
void QQuickTextInput::q_validatorChanged()
{
Q_D(QQuickTextInput);
d->checkIsValid();
}
#endif // validator
QRectF QQuickTextInputPrivate::anchorRectangle() const
{
Q_Q(const QQuickTextInput);
QRectF rect;
int a;
// Unfortunately we cannot use selectionStart() and selectionEnd()
// since they always assume that the selectionStart is logically before selectionEnd.
// To rely on that would cause havoc if the user was interactively moving the end selection
// handle to become before the start selection
if (m_selstart == m_selend)
// This is to handle the case when there is "no selection" while moving the handle onto the
// same position as the other handle (in which case it would hide the selection handles)
a = m_cursor;
else
a = m_selstart == m_cursor ? m_selend : m_selstart;
if (a >= 0) {
#if QT_CONFIG(im)
a += m_preeditCursor;
#endif
if (m_echoMode == QQuickTextInput::NoEcho)
a = 0;
QTextLine l = m_textLayout.lineForTextPosition(a);
if (l.isValid()) {
qreal x = l.cursorToX(a) - hscroll + q->leftPadding();
qreal y = l.y() - vscroll + q->topPadding();
rect.setRect(x, y, 1, l.height());
}
}
return rect;
}
void QQuickTextInputPrivate::checkIsValid()
{
Q_Q(QQuickTextInput);
ValidatorState state = hasAcceptableInput(m_text);
if (!m_maskData)
m_validInput = state != InvalidInput;
if (state != AcceptableInput) {
if (m_acceptableInput) {
m_acceptableInput = false;
emit q->acceptableInputChanged();
}
} else if (!m_acceptableInput) {
m_acceptableInput = true;
emit q->acceptableInputChanged();
}
}
/*!
\qmlproperty string QtQuick::TextInput::inputMask
Allows you to set an input mask on the TextInput, restricting the allowable
text inputs. See QLineEdit::inputMask for further details, as the exact
same mask strings are used by TextInput.
\sa acceptableInput, validator
*/
QString QQuickTextInput::inputMask() const
{
Q_D(const QQuickTextInput);
return d->inputMask();
}
void QQuickTextInput::setInputMask(const QString &im)
{
Q_D(QQuickTextInput);
QString canonicalInputMask = im;
if (im.lastIndexOf(QLatin1Char(';')) == -1)
canonicalInputMask.append(QLatin1String("; "));
if (d->inputMask() == canonicalInputMask)
return;
d->setInputMask(im);
emit inputMaskChanged(d->inputMask());
}
/*!
\qmlproperty bool QtQuick::TextInput::acceptableInput
This property is always true unless a validator or input mask has been set.
If a validator or input mask has been set, this property will only be true
if the current text is acceptable to the validator or input mask as a final
string (not as an intermediate string).
*/
bool QQuickTextInput::hasAcceptableInput() const
{
Q_D(const QQuickTextInput);
return d->m_acceptableInput;
}
/*!
\qmlsignal QtQuick::TextInput::accepted()
This signal is emitted when the Return or Enter key is pressed.
Note that if there is a \l validator or \l inputMask set on the text
input, the signal will only be emitted if the input is in an acceptable
state.
*/
/*!
\qmlsignal QtQuick::TextInput::editingFinished()
\since 5.2
This signal is emitted when the Return or Enter key is pressed or
the text input loses focus. Note that if there is a validator or
inputMask set on the text input and enter/return is pressed, this
signal will only be emitted if the input follows
the inputMask and the validator returns an acceptable state.
*/
/*!
\qmlsignal QtQuick::TextInput::textEdited()
\since 5.9
This signal is emitted whenever the text is edited. Unlike \c textChanged(),
this signal is not emitted when the text is changed programmatically, for example,
by changing the value of the \c text property or by calling \c clear().
*/
#if QT_CONFIG(im)
Qt::InputMethodHints QQuickTextInputPrivate::effectiveInputMethodHints() const
{
Qt::InputMethodHints hints = inputMethodHints;
if (m_echoMode == QQuickTextInput::Password || m_echoMode == QQuickTextInput::NoEcho)
hints |= Qt::ImhHiddenText;
else if (m_echoMode == QQuickTextInput::PasswordEchoOnEdit)
hints &= ~Qt::ImhHiddenText;
if (m_echoMode != QQuickTextInput::Normal)
hints |= (Qt::ImhNoAutoUppercase | Qt::ImhNoPredictiveText | Qt::ImhSensitiveData);
return hints;
}
#endif
/*!
\qmlproperty enumeration QtQuick::TextInput::echoMode
Specifies how the text should be displayed in the TextInput.
\list
\li TextInput.Normal - Displays the text as it is. (Default)
\li TextInput.Password - Displays platform-dependent password mask
characters instead of the actual characters.
\li TextInput.NoEcho - Displays nothing.
\li TextInput.PasswordEchoOnEdit - Displays characters as they are entered
while editing, otherwise identical to \c TextInput.Password.
\endlist
*/
QQuickTextInput::EchoMode QQuickTextInput::echoMode() const
{
Q_D(const QQuickTextInput);
return QQuickTextInput::EchoMode(d->m_echoMode);
}
void QQuickTextInput::setEchoMode(QQuickTextInput::EchoMode echo)
{
Q_D(QQuickTextInput);
if (echoMode() == echo)
return;
d->cancelPasswordEchoTimer();
d->m_echoMode = echo;
d->m_passwordEchoEditing = false;
#if QT_CONFIG(im)
updateInputMethod(Qt::ImHints);
#endif
d->updateDisplayText();
updateCursorRectangle();
// If this control is used for password input, we want to minimize
// the possibility of string reallocation not to leak (parts of)
// the password.
if (d->m_echoMode != QQuickTextInput::Normal)
d->m_text.reserve(30);
emit echoModeChanged(echoMode());
}
/*!
\qmlproperty enumeration QtQuick::TextInput::inputMethodHints
Provides hints to the input method about the expected content of the text input and how it
should operate.
The value is a bit-wise combination of flags, or Qt.ImhNone if no hints are set.
Flags that alter behaviour are:
\list
\li Qt.ImhHiddenText - Characters should be hidden, as is typically used when entering passwords.
This is automatically set when setting echoMode to \c TextInput.Password.
\li Qt.ImhSensitiveData - Typed text should not be stored by the active input method
in any persistent storage like predictive user dictionary.
\li Qt.ImhNoAutoUppercase - The input method should not try to automatically switch to upper case
when a sentence ends.
\li Qt.ImhPreferNumbers - Numbers are preferred (but not required).
\li Qt.ImhPreferUppercase - Upper case letters are preferred (but not required).
\li Qt.ImhPreferLowercase - Lower case letters are preferred (but not required).
\li Qt.ImhNoPredictiveText - Do not use predictive text (i.e. dictionary lookup) while typing.
\li Qt.ImhDate - The text editor functions as a date field.
\li Qt.ImhTime - The text editor functions as a time field.
\li Qt.ImhMultiLine - The text editor doesn't close software input keyboard when Return or Enter key is pressed (since QtQuick 2.4).
\endlist
Flags that restrict input (exclusive flags) are:
\list
\li Qt.ImhDigitsOnly - Only digits are allowed.
\li Qt.ImhFormattedNumbersOnly - Only number input is allowed. This includes decimal point and minus sign.
\li Qt.ImhUppercaseOnly - Only upper case letter input is allowed.
\li Qt.ImhLowercaseOnly - Only lower case letter input is allowed.
\li Qt.ImhDialableCharactersOnly - Only characters suitable for phone dialing are allowed.
\li Qt.ImhEmailCharactersOnly - Only characters suitable for email addresses are allowed.
\li Qt.ImhUrlCharactersOnly - Only characters suitable for URLs are allowed.
\endlist
Masks:
\list
\li Qt.ImhExclusiveInputMask - This mask yields nonzero if any of the exclusive flags are used.
\endlist
*/
Qt::InputMethodHints QQuickTextInput::inputMethodHints() const
{
#if !QT_CONFIG(im)
return Qt::ImhNone;
#else
Q_D(const QQuickTextInput);
return d->inputMethodHints;
#endif // im
}
void QQuickTextInput::setInputMethodHints(Qt::InputMethodHints hints)
{
#if !QT_CONFIG(im)
Q_UNUSED(hints);
#else
Q_D(QQuickTextInput);
if (hints == d->inputMethodHints)
return;
d->inputMethodHints = hints;
updateInputMethod(Qt::ImHints);
emit inputMethodHintsChanged();
#endif // im
}
/*!
\qmlproperty Component QtQuick::TextInput::cursorDelegate
The delegate for the cursor in the TextInput.
If you set a cursorDelegate for a TextInput, this delegate will be used for
drawing the cursor instead of the standard cursor. An instance of the
delegate will be created and managed by the TextInput when a cursor is
needed, and the x property of the delegate instance will be set so as
to be one pixel before the top left of the current character.
Note that the root item of the delegate component must be a QQuickItem or
QQuickItem derived item.
*/
QQmlComponent* QQuickTextInput::cursorDelegate() const
{
Q_D(const QQuickTextInput);
return d->cursorComponent;
}
void QQuickTextInput::setCursorDelegate(QQmlComponent* c)
{
Q_D(QQuickTextInput);
QQuickTextUtil::setCursorDelegate(d, c);
}
void QQuickTextInput::createCursor()
{
Q_D(QQuickTextInput);
d->cursorPending = true;
QQuickTextUtil::createCursor(d);
}
/*!
\qmlmethod rect QtQuick::TextInput::positionToRectangle(int pos)
This function takes a character position \a pos and returns the rectangle
that the cursor would occupy, if it was placed at that character position.
This is similar to setting the cursorPosition, and then querying the cursor
rectangle, but the cursorPosition is not changed.
*/
QRectF QQuickTextInput::positionToRectangle(int pos) const
{
Q_D(const QQuickTextInput);
if (d->m_echoMode == NoEcho)
pos = 0;
#if QT_CONFIG(im)
else if (pos > d->m_cursor)
pos += d->preeditAreaText().length();
#endif
QTextLine l = d->m_textLayout.lineForTextPosition(pos);
if (!l.isValid())
return QRectF();
qreal x = l.cursorToX(pos) - d->hscroll;
qreal y = l.y() - d->vscroll;
qreal w = 1;
if (d->overwriteMode) {
if (pos < text().length())
w = l.cursorToX(pos + 1) - x;
else
w = QFontMetrics(font()).horizontalAdvance(QLatin1Char(' ')); // in sync with QTextLine::draw()
}
return QRectF(x, y, w, l.height());
}
/*!
\qmlmethod int QtQuick::TextInput::positionAt(real x, real y, CursorPosition position)
This function returns the character position at
\a x and \a y pixels from the top left of the textInput. Position 0 is before the
first character, position 1 is after the first character but before the second,
and so on until position text.length, which is after all characters.
This means that for all x values before the first character this function returns 0,
and for all x values after the last character this function returns text.length. If
the y value is above the text the position will be that of the nearest character on
the first line and if it is below the text the position of the nearest character
on the last line will be returned.
The cursor \a position parameter specifies how the cursor position should be resolved:
\value TextInput.CursorBetweenCharacters
Returns the position between characters that is nearest x.
This is the default value.
\value TextInput.CursorOnCharacter
Returns the position before the character that is nearest x.
*/
void QQuickTextInput::positionAt(QQmlV4Function *args) const
{
Q_D(const QQuickTextInput);
qreal x = 0;
qreal y = 0;
QTextLine::CursorPosition position = QTextLine::CursorBetweenCharacters;
if (args->length() < 1)
return;
int i = 0;
QV4::Scope scope(args->v4engine());
QV4::ScopedValue arg(scope, (*args)[0]);
x = arg->toNumber();
if (++i < args->length()) {
arg = (*args)[i];
y = arg->toNumber();
}
if (++i < args->length()) {
arg = (*args)[i];
position = QTextLine::CursorPosition(arg->toInt32());
}
int pos = d->positionAt(x, y, position);
const int cursor = d->m_cursor;
if (pos > cursor) {
#if QT_CONFIG(im)
const int preeditLength = d->preeditAreaText().length();
pos = pos > cursor + preeditLength
? pos - preeditLength
: cursor;
#else
pos = cursor;
#endif
}
args->setReturnValue(QV4::Encode(pos));
}
int QQuickTextInputPrivate::positionAt(qreal x, qreal y, QTextLine::CursorPosition position) const
{
Q_Q(const QQuickTextInput);
x += hscroll - q->leftPadding();
y += vscroll - q->topPadding();
QTextLine line = m_textLayout.lineAt(0);
for (int i = 1; i < m_textLayout.lineCount(); ++i) {
QTextLine nextLine = m_textLayout.lineAt(i);
if (y < (line.rect().bottom() + nextLine.y()) / 2)
break;
line = nextLine;
}
return line.isValid() ? line.xToCursor(x, position) : 0;
}
/*!
\qmlproperty bool QtQuick::TextInput::overwriteMode
\since 5.8
Whether text entered by the user will overwrite existing text.
As with many text editors, the text editor widget can be configured
to insert or overwrite existing text with new text entered by the user.
If this property is \c true, existing text is overwritten, character-for-character
by new text; otherwise, text is inserted at the cursor position, displacing
existing text.
By default, this property is \c false (new text does not overwrite existing text).
*/
bool QQuickTextInput::overwriteMode() const
{
Q_D(const QQuickTextInput);
return d->overwriteMode;
}
void QQuickTextInput::setOverwriteMode(bool overwrite)
{
Q_D(QQuickTextInput);
if (d->overwriteMode == overwrite)
return;
d->overwriteMode = overwrite;
emit overwriteModeChanged(overwrite);
}
void QQuickTextInput::keyPressEvent(QKeyEvent* ev)
{
Q_D(QQuickTextInput);
// Don't allow MacOSX up/down support, and we don't allow a completer.
bool ignore = (ev->key() == Qt::Key_Up || ev->key() == Qt::Key_Down) && ev->modifiers() == Qt::NoModifier;
if (!ignore && (d->lastSelectionStart == d->lastSelectionEnd) && (ev->key() == Qt::Key_Right || ev->key() == Qt::Key_Left)) {
// Ignore when moving off the end unless there is a selection,
// because then moving will do something (deselect).
int cursorPosition = d->m_cursor;
if (cursorPosition == 0)
ignore = ev->key() == (d->layoutDirection() == Qt::LeftToRight ? Qt::Key_Left : Qt::Key_Right);
if (!ignore && cursorPosition == d->m_text.length())
ignore = ev->key() == (d->layoutDirection() == Qt::LeftToRight ? Qt::Key_Right : Qt::Key_Left);
}
if (ignore) {
ev->ignore();
} else {
d->processKeyEvent(ev);
}
if (!ev->isAccepted())
QQuickImplicitSizeItem::keyPressEvent(ev);
}
#if QT_CONFIG(im)
void QQuickTextInput::inputMethodEvent(QInputMethodEvent *ev)
{
Q_D(QQuickTextInput);
const bool wasComposing = d->hasImState;
if (d->m_readOnly) {
ev->ignore();
} else {
d->processInputMethodEvent(ev);
}
if (!ev->isAccepted())
QQuickImplicitSizeItem::inputMethodEvent(ev);
if (wasComposing != d->hasImState)
emit inputMethodComposingChanged();
}
#endif
void QQuickTextInput::mouseDoubleClickEvent(QMouseEvent *event)
{
Q_D(QQuickTextInput);
if (d->selectByMouse && event->button() == Qt::LeftButton) {
#if QT_CONFIG(im)
d->commitPreedit();
#endif
int cursor = d->positionAt(event->localPos());
d->selectWordAtPos(cursor);
event->setAccepted(true);
if (!d->hasPendingTripleClick()) {
d->tripleClickStartPoint = event->localPos();
d->tripleClickTimer.start();
}
} else {
if (d->sendMouseEventToInputContext(event))
return;
QQuickImplicitSizeItem::mouseDoubleClickEvent(event);
}
}
void QQuickTextInput::mousePressEvent(QMouseEvent *event)
{
Q_D(QQuickTextInput);
d->pressPos = event->localPos();
if (d->sendMouseEventToInputContext(event))
return;
if (d->selectByMouse) {
setKeepMouseGrab(false);
d->selectPressed = true;
QPointF distanceVector = d->pressPos - d->tripleClickStartPoint;
if (d->hasPendingTripleClick()
&& distanceVector.manhattanLength() < QGuiApplication::styleHints()->startDragDistance()) {
event->setAccepted(true);
selectAll();
return;
}
}
bool mark = (event->modifiers() & Qt::ShiftModifier) && d->selectByMouse;
int cursor = d->positionAt(event->localPos());
d->moveCursor(cursor, mark);
if (d->focusOnPress && !qGuiApp->styleHints()->setFocusOnTouchRelease())
ensureActiveFocus();
event->setAccepted(true);
}
void QQuickTextInput::mouseMoveEvent(QMouseEvent *event)
{
Q_D(QQuickTextInput);
if (d->selectPressed) {
if (qAbs(int(event->localPos().x() - d->pressPos.x())) > QGuiApplication::styleHints()->startDragDistance())
setKeepMouseGrab(true);
#if QT_CONFIG(im)
if (d->composeMode()) {
// start selection
int startPos = d->positionAt(d->pressPos);
int currentPos = d->positionAt(event->localPos());
if (startPos != currentPos)
d->setSelection(startPos, currentPos - startPos);
} else
#endif
{
moveCursorSelection(d->positionAt(event->localPos()), d->mouseSelectionMode);
}
event->setAccepted(true);
} else {
QQuickImplicitSizeItem::mouseMoveEvent(event);
}
}
void QQuickTextInput::mouseReleaseEvent(QMouseEvent *event)
{
Q_D(QQuickTextInput);
if (d->sendMouseEventToInputContext(event))
return;
if (d->selectPressed) {
d->selectPressed = false;
setKeepMouseGrab(false);
}
#if QT_CONFIG(clipboard)
if (QGuiApplication::clipboard()->supportsSelection()) {
if (event->button() == Qt::LeftButton) {
d->copy(QClipboard::Selection);
} else if (!d->m_readOnly && event->button() == Qt::MiddleButton) {
d->deselect();
d->insert(QGuiApplication::clipboard()->text(QClipboard::Selection));
}
}
#endif
if (d->focusOnPress && qGuiApp->styleHints()->setFocusOnTouchRelease())
ensureActiveFocus();
if (!event->isAccepted())
QQuickImplicitSizeItem::mouseReleaseEvent(event);
}
bool QQuickTextInputPrivate::sendMouseEventToInputContext(QMouseEvent *event)
{
#if QT_CONFIG(im)
if (composeMode()) {
int tmp_cursor = positionAt(event->localPos());
int mousePos = tmp_cursor - m_cursor;
if (mousePos >= 0 && mousePos <= m_textLayout.preeditAreaText().length()) {
if (event->type() == QEvent::MouseButtonRelease) {
QGuiApplication::inputMethod()->invokeAction(QInputMethod::Click, mousePos);
}
return true;
}
}
#else
Q_UNUSED(event);
#endif
return false;
}
void QQuickTextInput::mouseUngrabEvent()
{
Q_D(QQuickTextInput);
d->selectPressed = false;
setKeepMouseGrab(false);
}
bool QQuickTextInput::event(QEvent* ev)
{
#if QT_CONFIG(shortcut)
Q_D(QQuickTextInput);
if (ev->type() == QEvent::ShortcutOverride) {
if (d->m_readOnly)
return false;
QKeyEvent* ke = static_cast<QKeyEvent*>(ev);
if (ke == QKeySequence::Copy
|| ke == QKeySequence::Paste
|| ke == QKeySequence::Cut
|| ke == QKeySequence::Redo
|| ke == QKeySequence::Undo
|| ke == QKeySequence::MoveToNextWord
|| ke == QKeySequence::MoveToPreviousWord
|| ke == QKeySequence::MoveToStartOfDocument
|| ke == QKeySequence::MoveToEndOfDocument
|| ke == QKeySequence::SelectNextWord
|| ke == QKeySequence::SelectPreviousWord
|| ke == QKeySequence::SelectStartOfLine
|| ke == QKeySequence::SelectEndOfLine
|| ke == QKeySequence::SelectStartOfBlock
|| ke == QKeySequence::SelectEndOfBlock
|| ke == QKeySequence::SelectStartOfDocument
|| ke == QKeySequence::SelectAll
|| ke == QKeySequence::SelectEndOfDocument
|| ke == QKeySequence::DeleteCompleteLine) {
ke->accept();
return true;
} else if (ke->modifiers() == Qt::NoModifier || ke->modifiers() == Qt::ShiftModifier
|| ke->modifiers() == Qt::KeypadModifier) {
if (ke->key() < Qt::Key_Escape) {
ke->accept();
return true;
} else {
switch (ke->key()) {
case Qt::Key_Delete:
case Qt::Key_Home:
case Qt::Key_End:
case Qt::Key_Backspace:
case Qt::Key_Left:
case Qt::Key_Right:
ke->accept();
return true;
default:
break;
}
}
}
}
#endif
return QQuickImplicitSizeItem::event(ev);
}
void QQuickTextInput::geometryChanged(const QRectF &newGeometry,
const QRectF &oldGeometry)
{
Q_D(QQuickTextInput);
if (!d->inLayout) {
if (newGeometry.width() != oldGeometry.width())
d->updateLayout();
else if (newGeometry.height() != oldGeometry.height() && d->vAlign != QQuickTextInput::AlignTop)
d->updateBaselineOffset();
updateCursorRectangle();
}
QQuickImplicitSizeItem::geometryChanged(newGeometry, oldGeometry);
}
void QQuickTextInputPrivate::ensureVisible(int position, int preeditCursor, int preeditLength)
{
Q_Q(QQuickTextInput);
QTextLine textLine = m_textLayout.lineForTextPosition(position + preeditCursor);
const qreal width = qMax<qreal>(0, q->width() - q->leftPadding() - q->rightPadding());
qreal cix = 0;
qreal widthUsed = 0;
if (textLine.isValid()) {
cix = textLine.cursorToX(position + preeditLength);
const qreal cursorWidth = cix >= 0 ? cix : width - cix;
widthUsed = qMax(textLine.naturalTextWidth(), cursorWidth);
}
int previousScroll = hscroll;
if (widthUsed <= width) {
hscroll = 0;
} else {
Q_ASSERT(textLine.isValid());
if (cix - hscroll >= width) {
// text doesn't fit, cursor is to the right of br (scroll right)
hscroll = cix - width;
} else if (cix - hscroll < 0 && hscroll < widthUsed) {
// text doesn't fit, cursor is to the left of br (scroll left)
hscroll = cix;
} else if (widthUsed - hscroll < width) {
// text doesn't fit, text document is to the left of br; align
// right
hscroll = widthUsed - width;
} else if (width - hscroll > widthUsed) {
// text doesn't fit, text document is to the right of br; align
// left
hscroll = width - widthUsed;
}
#if QT_CONFIG(im)
if (preeditLength > 0) {
// check to ensure long pre-edit text doesn't push the cursor
// off to the left
cix = textLine.cursorToX(position + qMax(0, preeditCursor - 1));
if (cix < hscroll)
hscroll = cix;
}
#endif
}
if (previousScroll != hscroll)
textLayoutDirty = true;
}
void QQuickTextInputPrivate::updateHorizontalScroll()
{
if (autoScroll && m_echoMode != QQuickTextInput::NoEcho) {
#if QT_CONFIG(im)
const int preeditLength = m_textLayout.preeditAreaText().length();
ensureVisible(m_cursor, m_preeditCursor, preeditLength);
#else
ensureVisible(m_cursor);
#endif
} else {
hscroll = 0;
}
}
void QQuickTextInputPrivate::updateVerticalScroll()
{
Q_Q(QQuickTextInput);
#if QT_CONFIG(im)
const int preeditLength = m_textLayout.preeditAreaText().length();
#endif
const qreal height = qMax<qreal>(0, q->height() - q->topPadding() - q->bottomPadding());
qreal heightUsed = contentSize.height();
qreal previousScroll = vscroll;
if (!autoScroll || heightUsed <= height) {
// text fits in br; use vscroll for alignment
vscroll = -QQuickTextUtil::alignedY(
heightUsed, height, vAlign & ~(Qt::AlignAbsolute|Qt::AlignHorizontal_Mask));
} else {
#if QT_CONFIG(im)
QTextLine currentLine = m_textLayout.lineForTextPosition(m_cursor + preeditLength);
#else
QTextLine currentLine = m_textLayout.lineForTextPosition(m_cursor);
#endif
QRectF r = currentLine.isValid() ? currentLine.rect() : QRectF();
qreal top = r.top();
int bottom = r.bottom();
if (bottom - vscroll >= height) {
// text doesn't fit, cursor is to the below the br (scroll down)
vscroll = bottom - height;
} else if (top - vscroll < 0 && vscroll < heightUsed) {
// text doesn't fit, cursor is above br (scroll up)
vscroll = top;
} else if (heightUsed - vscroll < height) {
// text doesn't fit, text document is to the left of br; align
// right
vscroll = heightUsed - height;
}
#if QT_CONFIG(im)
if (preeditLength > 0) {
// check to ensure long pre-edit text doesn't push the cursor
// off the top
currentLine = m_textLayout.lineForTextPosition(m_cursor + qMax(0, m_preeditCursor - 1));
top = currentLine.isValid() ? currentLine.rect().top() : 0;
if (top < vscroll)
vscroll = top;
}
#endif
}
if (previousScroll != vscroll)
textLayoutDirty = true;
}
void QQuickTextInput::triggerPreprocess()
{
Q_D(QQuickTextInput);
if (d->updateType == QQuickTextInputPrivate::UpdateNone)
d->updateType = QQuickTextInputPrivate::UpdateOnlyPreprocess;
polish();
update();
}
void QQuickTextInput::updatePolish()
{
invalidateFontCaches();
}
void QQuickTextInput::invalidateFontCaches()
{
Q_D(QQuickTextInput);
if (d->m_textLayout.engine() != nullptr)
d->m_textLayout.engine()->resetFontEngineCache();
}
void QQuickTextInput::ensureActiveFocus()
{
bool hadActiveFocus = hasActiveFocus();
forceActiveFocus();
#if QT_CONFIG(im)
Q_D(QQuickTextInput);
// re-open input panel on press if already focused
if (hasActiveFocus() && hadActiveFocus && !d->m_readOnly)
qGuiApp->inputMethod()->show();
#else
Q_UNUSED(hadActiveFocus);
#endif
}
QSGNode *QQuickTextInput::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *data)
{
Q_UNUSED(data);
Q_D(QQuickTextInput);
if (d->updateType != QQuickTextInputPrivate::UpdatePaintNode && oldNode != nullptr) {
// Update done in preprocess() in the nodes
d->updateType = QQuickTextInputPrivate::UpdateNone;
return oldNode;
}
d->updateType = QQuickTextInputPrivate::UpdateNone;
QQuickTextNode *node = static_cast<QQuickTextNode *>(oldNode);
if (node == nullptr)
node = new QQuickTextNode(this);
d->textNode = node;
const bool showCursor = !isReadOnly() && d->cursorItem == nullptr && d->cursorVisible && d->m_blinkStatus;
if (!d->textLayoutDirty && oldNode != nullptr) {
if (showCursor)
node->setCursor(cursorRectangle(), d->color);
else
node->clearCursor();
} else {
node->setUseNativeRenderer(d->renderType == NativeRendering);
node->deleteContent();
node->setMatrix(QMatrix4x4());
QPointF offset(leftPadding(), topPadding());
if (d->autoScroll && d->m_textLayout.lineCount() > 0) {
QFontMetricsF fm(d->font);
// the y offset is there to keep the baseline constant in case we have script changes in the text.
offset += -QPointF(d->hscroll, d->vscroll + d->m_textLayout.lineAt(0).ascent() - fm.ascent());
} else {
offset += -QPointF(d->hscroll, d->vscroll);
}
if (!d->m_textLayout.text().isEmpty()
#if QT_CONFIG(im)
|| !d->m_textLayout.preeditAreaText().isEmpty()
#endif
) {
node->addTextLayout(offset, &d->m_textLayout, d->color,
QQuickText::Normal, QColor(), QColor(),
d->selectionColor, d->selectedTextColor,
d->selectionStart(),
d->selectionEnd() - 1); // selectionEnd() returns first char after
// selection
}
if (showCursor)
node->setCursor(cursorRectangle(), d->color);
d->textLayoutDirty = false;
}
invalidateFontCaches();
return node;
}
#if QT_CONFIG(im)
QVariant QQuickTextInput::inputMethodQuery(Qt::InputMethodQuery property) const
{
return inputMethodQuery(property, QVariant());
}
QVariant QQuickTextInput::inputMethodQuery(Qt::InputMethodQuery property, const QVariant &argument) const
{
Q_D(const QQuickTextInput);
switch (property) {
case Qt::ImEnabled:
return QVariant((bool)(flags() & ItemAcceptsInputMethod));
case Qt::ImHints:
return QVariant((int) d->effectiveInputMethodHints());
case Qt::ImCursorRectangle:
return cursorRectangle();
case Qt::ImAnchorRectangle:
return d->anchorRectangle();
case Qt::ImFont:
return font();
case Qt::ImCursorPosition: {
const QPointF pt = argument.toPointF();
if (!pt.isNull())
return QVariant(d->positionAt(pt));
return QVariant(d->m_cursor);
}
case Qt::ImSurroundingText:
if (d->m_echoMode == PasswordEchoOnEdit && !d->m_passwordEchoEditing) {
return QVariant(displayText());
} else {
return QVariant(d->realText());
}
case Qt::ImCurrentSelection:
return QVariant(selectedText());
case Qt::ImMaximumTextLength:
return QVariant(maxLength());
case Qt::ImAnchorPosition:
if (d->selectionStart() == d->selectionEnd())
return QVariant(d->m_cursor);
else if (d->selectionStart() == d->m_cursor)
return QVariant(d->selectionEnd());
else
return QVariant(d->selectionStart());
case Qt::ImAbsolutePosition:
return QVariant(d->m_cursor);
case Qt::ImTextAfterCursor:
if (argument.isValid())
return QVariant(d->m_text.mid(d->m_cursor, argument.toInt()));
return QVariant(d->m_text.mid(d->m_cursor));
case Qt::ImTextBeforeCursor:
if (argument.isValid())
return QVariant(d->m_text.leftRef(d->m_cursor).right(argument.toInt()).toString());
return QVariant(d->m_text.left(d->m_cursor));
default:
return QQuickItem::inputMethodQuery(property);
}
}
#endif // im
/*!
\qmlmethod QtQuick::TextInput::deselect()
Removes active text selection.
*/
void QQuickTextInput::deselect()
{
Q_D(QQuickTextInput);
d->deselect();
}
/*!
\qmlmethod QtQuick::TextInput::selectAll()
Causes all text to be selected.
*/
void QQuickTextInput::selectAll()
{
Q_D(QQuickTextInput);
d->setSelection(0, text().length());
}
/*!
\qmlmethod QtQuick::TextInput::isRightToLeft(int start, int end)
Returns true if the natural reading direction of the editor text
found between positions \a start and \a end is right to left.
*/
bool QQuickTextInput::isRightToLeft(int start, int end)
{
if (start > end) {
qmlWarning(this) << "isRightToLeft(start, end) called with the end property being smaller than the start.";
return false;
} else {
return text().midRef(start, end - start).isRightToLeft();
}
}
#if QT_CONFIG(clipboard)
/*!
\qmlmethod QtQuick::TextInput::cut()
Moves the currently selected text to the system clipboard.
\note If the echo mode is set to a mode other than Normal then cut
will not work. This is to prevent using cut as a method of bypassing
password features of the line control.
*/
void QQuickTextInput::cut()
{
Q_D(QQuickTextInput);
if (!d->m_readOnly && d->m_echoMode == QQuickTextInput::Normal) {
d->copy();
d->del();
}
}
/*!
\qmlmethod QtQuick::TextInput::copy()
Copies the currently selected text to the system clipboard.
\note If the echo mode is set to a mode other than Normal then copy
will not work. This is to prevent using copy as a method of bypassing
password features of the line control.
*/
void QQuickTextInput::copy()
{
Q_D(QQuickTextInput);
d->copy();
}
/*!
\qmlmethod QtQuick::TextInput::paste()
Replaces the currently selected text by the contents of the system clipboard.
*/
void QQuickTextInput::paste()
{
Q_D(QQuickTextInput);
if (!d->m_readOnly)
d->paste();
}
#endif // clipboard
/*!
\qmlmethod QtQuick::TextInput::undo()
Undoes the last operation if undo is \l {canUndo}{available}. Deselects any
current selection, and updates the selection start to the current cursor
position.
*/
void QQuickTextInput::undo()
{
Q_D(QQuickTextInput);
if (!d->m_readOnly) {
d->resetInputMethod();
d->internalUndo();
d->finishChange(-1, true);
}
}
/*!
\qmlmethod QtQuick::TextInput::redo()
Redoes the last operation if redo is \l {canRedo}{available}.
*/
void QQuickTextInput::redo()
{
Q_D(QQuickTextInput);
if (!d->m_readOnly) {
d->resetInputMethod();
d->internalRedo();
d->finishChange();
}
}
/*!
\qmlmethod QtQuick::TextInput::insert(int position, string text)
Inserts \a text into the TextInput at \a position.
*/
void QQuickTextInput::insert(int position, const QString &text)
{
Q_D(QQuickTextInput);
if (d->m_echoMode == QQuickTextInput::Password) {
if (d->m_passwordMaskDelay > 0)
d->m_passwordEchoTimer.start(d->m_passwordMaskDelay, this);
}
if (position < 0 || position > d->m_text.length())
return;
const int priorState = d->m_undoState;
QString insertText = text;
if (d->hasSelectedText()) {
d->addCommand(QQuickTextInputPrivate::Command(
QQuickTextInputPrivate::SetSelection, d->m_cursor, 0, d->m_selstart, d->m_selend));
}
if (d->m_maskData) {
insertText = d->maskString(position, insertText);
for (int i = 0; i < insertText.length(); ++i) {
d->addCommand(QQuickTextInputPrivate::Command(
QQuickTextInputPrivate::DeleteSelection, position + i, d->m_text.at(position + i), -1, -1));
d->addCommand(QQuickTextInputPrivate::Command(
QQuickTextInputPrivate::Insert, position + i, insertText.at(i), -1, -1));
}
d->m_text.replace(position, insertText.length(), insertText);
if (!insertText.isEmpty())
d->m_textDirty = true;
if (position < d->m_selend && position + insertText.length() > d->m_selstart)
d->m_selDirty = true;
} else {
int remaining = d->m_maxLength - d->m_text.length();
if (remaining != 0) {
insertText = insertText.left(remaining);
d->m_text.insert(position, insertText);
for (int i = 0; i < insertText.length(); ++i)
d->addCommand(QQuickTextInputPrivate::Command(
QQuickTextInputPrivate::Insert, position + i, insertText.at(i), -1, -1));
if (d->m_cursor >= position)
d->m_cursor += insertText.length();
if (d->m_selstart >= position)
d->m_selstart += insertText.length();
if (d->m_selend >= position)
d->m_selend += insertText.length();
d->m_textDirty = true;
if (position >= d->m_selstart && position <= d->m_selend)
d->m_selDirty = true;
}
}
d->addCommand(QQuickTextInputPrivate::Command(
QQuickTextInputPrivate::SetSelection, d->m_cursor, 0, d->m_selstart, d->m_selend));
d->finishChange(priorState);
if (d->lastSelectionStart != d->lastSelectionEnd) {
if (d->m_selstart != d->lastSelectionStart) {
d->lastSelectionStart = d->m_selstart;
emit selectionStartChanged();
}
if (d->m_selend != d->lastSelectionEnd) {
d->lastSelectionEnd = d->m_selend;
emit selectionEndChanged();
}
}
}
/*!
\qmlmethod QtQuick::TextInput::remove(int start, int end)
Removes the section of text that is between the \a start and \a end positions from the TextInput.
*/
void QQuickTextInput::remove(int start, int end)
{
Q_D(QQuickTextInput);
start = qBound(0, start, d->m_text.length());
end = qBound(0, end, d->m_text.length());
if (start > end)
qSwap(start, end);
else if (start == end)
return;
if (start < d->m_selend && end > d->m_selstart)
d->m_selDirty = true;
const int priorState = d->m_undoState;
d->addCommand(QQuickTextInputPrivate::Command(
QQuickTextInputPrivate::SetSelection, d->m_cursor, 0, d->m_selstart, d->m_selend));
if (start <= d->m_cursor && d->m_cursor < end) {
// cursor is within the selection. Split up the commands
// to be able to restore the correct cursor position
for (int i = d->m_cursor; i >= start; --i) {
d->addCommand(QQuickTextInputPrivate::Command(
QQuickTextInputPrivate::DeleteSelection, i, d->m_text.at(i), -1, 1));
}
for (int i = end - 1; i > d->m_cursor; --i) {
d->addCommand(QQuickTextInputPrivate::Command(
QQuickTextInputPrivate::DeleteSelection, i - d->m_cursor + start - 1, d->m_text.at(i), -1, -1));
}
} else {
for (int i = end - 1; i >= start; --i) {
d->addCommand(QQuickTextInputPrivate::Command(
QQuickTextInputPrivate::RemoveSelection, i, d->m_text.at(i), -1, -1));
}
}
if (d->m_maskData) {
d->m_text.replace(start, end - start, d->clearString(start, end - start));
for (int i = 0; i < end - start; ++i) {
d->addCommand(QQuickTextInputPrivate::Command(
QQuickTextInputPrivate::Insert, start + i, d->m_text.at(start + i), -1, -1));
}
} else {
d->m_text.remove(start, end - start);
if (d->m_cursor > start)
d->m_cursor -= qMin(d->m_cursor, end) - start;
if (d->m_selstart > start)
d->m_selstart -= qMin(d->m_selstart, end) - start;
if (d->m_selend >= end)
d->m_selend -= end - start;
}
d->addCommand(QQuickTextInputPrivate::Command(
QQuickTextInputPrivate::SetSelection, d->m_cursor, 0, d->m_selstart, d->m_selend));
d->m_textDirty = true;
d->finishChange(priorState);
if (d->lastSelectionStart != d->lastSelectionEnd) {
if (d->m_selstart != d->lastSelectionStart) {
d->lastSelectionStart = d->m_selstart;
emit selectionStartChanged();
}
if (d->m_selend != d->lastSelectionEnd) {
d->lastSelectionEnd = d->m_selend;
emit selectionEndChanged();
}
}
}
/*!
\qmlmethod QtQuick::TextInput::selectWord()
Causes the word closest to the current cursor position to be selected.
*/
void QQuickTextInput::selectWord()
{
Q_D(QQuickTextInput);
d->selectWordAtPos(d->m_cursor);
}
/*!
\qmlproperty string QtQuick::TextInput::passwordCharacter
This is the character displayed when echoMode is set to Password or
PasswordEchoOnEdit. By default it is the password character used by
the platform theme.
If this property is set to a string with more than one character,
the first character is used. If the string is empty, the value
is ignored and the property is not set.
*/
QString QQuickTextInput::passwordCharacter() const
{
Q_D(const QQuickTextInput);
return QString(d->m_passwordCharacter);
}
void QQuickTextInput::setPasswordCharacter(const QString &str)
{
Q_D(QQuickTextInput);
if (str.length() < 1)
return;
d->m_passwordCharacter = str.constData()[0];
if (d->m_echoMode == Password || d->m_echoMode == PasswordEchoOnEdit)
d->updateDisplayText();
emit passwordCharacterChanged();
}
/*!
\qmlproperty int QtQuick::TextInput::passwordMaskDelay
\since 5.4
Sets the delay before visible character is masked with password character, in milliseconds.
The reset method will be called by assigning undefined.
*/
int QQuickTextInput::passwordMaskDelay() const
{
Q_D(const QQuickTextInput);
return d->m_passwordMaskDelay;
}
void QQuickTextInput::setPasswordMaskDelay(int delay)
{
Q_D(QQuickTextInput);
if (d->m_passwordMaskDelay != delay) {
d->m_passwordMaskDelay = delay;
emit passwordMaskDelayChanged(delay);
}
}
void QQuickTextInput::resetPasswordMaskDelay()
{
setPasswordMaskDelay(qGuiApp->styleHints()->passwordMaskDelay());
}
/*!
\qmlproperty string QtQuick::TextInput::displayText
This is the text displayed in the TextInput.
If \l echoMode is set to TextInput::Normal, this holds the
same value as the TextInput::text property. Otherwise,
this property holds the text visible to the user, while
the \l text property holds the actual entered text.
\note Unlike the TextInput::text property, this contains
partial text input from an input method.
\readonly
\sa preeditText
*/
QString QQuickTextInput::displayText() const
{
Q_D(const QQuickTextInput);
return d->m_textLayout.text().insert(d->m_textLayout.preeditAreaPosition(), d->m_textLayout.preeditAreaText());
}
/*!
\qmlproperty string QtQuick::TextInput::preeditText
\readonly
\since 5.7
This property contains partial text input from an input method.
\sa displayText
*/
QString QQuickTextInput::preeditText() const
{
Q_D(const QQuickTextInput);
return d->m_textLayout.preeditAreaText();
}
/*!
\qmlproperty bool QtQuick::TextInput::selectByMouse
Defaults to false.
If true, the user can use the mouse to select text in some
platform-specific way. Note that for some platforms this may
not be an appropriate interaction (it may conflict with how
the text needs to behave inside a \l Flickable, for example).
*/
bool QQuickTextInput::selectByMouse() const
{
Q_D(const QQuickTextInput);
return d->selectByMouse;
}
void QQuickTextInput::setSelectByMouse(bool on)
{
Q_D(QQuickTextInput);
if (d->selectByMouse != on) {
d->selectByMouse = on;
emit selectByMouseChanged(on);
}
}
/*!
\qmlproperty enumeration QtQuick::TextInput::mouseSelectionMode
Specifies how text should be selected using a mouse.
\list
\li TextInput.SelectCharacters - The selection is updated with individual characters. (Default)
\li TextInput.SelectWords - The selection is updated with whole words.
\endlist
This property only applies when \l selectByMouse is true.
*/
QQuickTextInput::SelectionMode QQuickTextInput::mouseSelectionMode() const
{
Q_D(const QQuickTextInput);
return d->mouseSelectionMode;
}
void QQuickTextInput::setMouseSelectionMode(SelectionMode mode)
{
Q_D(QQuickTextInput);
if (d->mouseSelectionMode != mode) {
d->mouseSelectionMode = mode;
emit mouseSelectionModeChanged(mode);
}
}
/*!
\qmlproperty bool QtQuick::TextInput::persistentSelection
Whether the TextInput should keep its selection when it loses active focus to another
item in the scene. By default this is set to false;
*/
bool QQuickTextInput::persistentSelection() const
{
Q_D(const QQuickTextInput);
return d->persistentSelection;
}
void QQuickTextInput::setPersistentSelection(bool on)
{
Q_D(QQuickTextInput);
if (d->persistentSelection == on)
return;
d->persistentSelection = on;
emit persistentSelectionChanged();
}
/*!
\qmlproperty bool QtQuick::TextInput::canPaste
Returns true if the TextInput is writable and the content of the clipboard is
suitable for pasting into the TextInput.
*/
bool QQuickTextInput::canPaste() const
{
#if QT_CONFIG(clipboard)
Q_D(const QQuickTextInput);
if (!d->canPasteValid) {
if (const QMimeData *mimeData = QGuiApplication::clipboard()->mimeData())
const_cast<QQuickTextInputPrivate *>(d)->canPaste = !d->m_readOnly && mimeData->hasText();
const_cast<QQuickTextInputPrivate *>(d)->canPasteValid = true;
}
return d->canPaste;
#else
return false;
#endif
}
/*!
\qmlproperty bool QtQuick::TextInput::canUndo
Returns true if the TextInput is writable and there are previous operations
that can be undone.
*/
bool QQuickTextInput::canUndo() const
{
Q_D(const QQuickTextInput);
return d->canUndo;
}
/*!
\qmlproperty bool QtQuick::TextInput::canRedo
Returns true if the TextInput is writable and there are \l {undo}{undone}
operations that can be redone.
*/
bool QQuickTextInput::canRedo() const
{
Q_D(const QQuickTextInput);
return d->canRedo;
}
/*!
\qmlproperty real QtQuick::TextInput::contentWidth
Returns the width of the text, including the width past the width
which is covered due to insufficient wrapping if \l wrapMode is set.
*/
qreal QQuickTextInput::contentWidth() const
{
Q_D(const QQuickTextInput);
return d->contentSize.width();
}
/*!
\qmlproperty real QtQuick::TextInput::contentHeight
Returns the height of the text, including the height past the height
that is covered if the text does not fit within the set height.
*/
qreal QQuickTextInput::contentHeight() const
{
Q_D(const QQuickTextInput);
return d->contentSize.height();
}
void QQuickTextInput::moveCursorSelection(int position)
{
Q_D(QQuickTextInput);
d->moveCursor(position, true);
}
/*!
\qmlmethod QtQuick::TextInput::moveCursorSelection(int position, SelectionMode mode)
Moves the cursor to \a position and updates the selection according to the optional \a mode
parameter. (To only move the cursor, set the \l cursorPosition property.)
When this method is called it additionally sets either the
selectionStart or the selectionEnd (whichever was at the previous cursor position)
to the specified position. This allows you to easily extend and contract the selected
text range.
The selection mode specifies whether the selection is updated on a per character or a per word
basis. If not specified the selection mode will default to \c {TextInput.SelectCharacters}.
\list
\li TextInput.SelectCharacters - Sets either the selectionStart or selectionEnd (whichever was at
the previous cursor position) to the specified position.
\li TextInput.SelectWords - Sets the selectionStart and selectionEnd to include all
words between the specified position and the previous cursor position. Words partially in the
range are included.
\endlist
For example, take this sequence of calls:
\code
cursorPosition = 5
moveCursorSelection(9, TextInput.SelectCharacters)
moveCursorSelection(7, TextInput.SelectCharacters)
\endcode
This moves the cursor to position 5, extend the selection end from 5 to 9
and then retract the selection end from 9 to 7, leaving the text from position 5 to 7
selected (the 6th and 7th characters).
The same sequence with TextInput.SelectWords will extend the selection start to a word boundary
before or on position 5 and extend the selection end to a word boundary on or past position 9.
*/
void QQuickTextInput::moveCursorSelection(int pos, SelectionMode mode)
{
Q_D(QQuickTextInput);
if (mode == SelectCharacters) {
d->moveCursor(pos, true);
} else if (pos != d->m_cursor){
const int cursor = d->m_cursor;
int anchor;
if (!d->hasSelectedText())
anchor = d->m_cursor;
else if (d->selectionStart() == d->m_cursor)
anchor = d->selectionEnd();
else
anchor = d->selectionStart();
if (anchor < pos || (anchor == pos && cursor < pos)) {
const QString text = this->text();
QTextBoundaryFinder finder(QTextBoundaryFinder::Word, text);
finder.setPosition(anchor);
const QTextBoundaryFinder::BoundaryReasons reasons = finder.boundaryReasons();
if (anchor < text.length() && (reasons == QTextBoundaryFinder::NotAtBoundary
|| (reasons & QTextBoundaryFinder::EndOfItem))) {
finder.toPreviousBoundary();
}
anchor = finder.position() != -1 ? finder.position() : 0;
finder.setPosition(pos);
if (pos > 0 && !finder.boundaryReasons())
finder.toNextBoundary();
const int cursor = finder.position() != -1 ? finder.position() : text.length();
d->setSelection(anchor, cursor - anchor);
} else if (anchor > pos || (anchor == pos && cursor > pos)) {
const QString text = this->text();
QTextBoundaryFinder finder(QTextBoundaryFinder::Word, text);
finder.setPosition(anchor);
const QTextBoundaryFinder::BoundaryReasons reasons = finder.boundaryReasons();
if (anchor > 0 && (reasons == QTextBoundaryFinder::NotAtBoundary
|| (reasons & QTextBoundaryFinder::StartOfItem))) {
finder.toNextBoundary();
}
anchor = finder.position() != -1 ? finder.position() : text.length();
finder.setPosition(pos);
if (pos < text.length() && !finder.boundaryReasons())
finder.toPreviousBoundary();
const int cursor = finder.position() != -1 ? finder.position() : 0;
d->setSelection(anchor, cursor - anchor);
}
}
}
void QQuickTextInput::focusInEvent(QFocusEvent *event)
{
Q_D(QQuickTextInput);
d->handleFocusEvent(event);
QQuickImplicitSizeItem::focusInEvent(event);
}
void QQuickTextInputPrivate::handleFocusEvent(QFocusEvent *event)
{
Q_Q(QQuickTextInput);
bool focus = event->gotFocus();
if (!m_readOnly) {
q->setCursorVisible(focus);
setBlinkingCursorEnabled(focus);
}
if (focus) {
q->q_updateAlignment();
#if QT_CONFIG(im)
if (focusOnPress && !m_readOnly)
qGuiApp->inputMethod()->show();
q->connect(QGuiApplication::inputMethod(), SIGNAL(inputDirectionChanged(Qt::LayoutDirection)),
q, SLOT(q_updateAlignment()));
#endif
} else {
if ((m_passwordEchoEditing || m_passwordEchoTimer.isActive())) {
updatePasswordEchoEditing(false);//QQuickTextInputPrivate sets it on key events, but doesn't deal with focus events
}
if (event->reason() != Qt::ActiveWindowFocusReason
&& event->reason() != Qt::PopupFocusReason
&& hasSelectedText()
&& !persistentSelection)
deselect();
if (hasAcceptableInput(m_text) == AcceptableInput || fixup())
emit q->editingFinished();
#if QT_CONFIG(im)
q->disconnect(QGuiApplication::inputMethod(), SIGNAL(inputDirectionChanged(Qt::LayoutDirection)),
q, SLOT(q_updateAlignment()));
#endif
}
}
void QQuickTextInput::focusOutEvent(QFocusEvent *event)
{
Q_D(QQuickTextInput);
d->handleFocusEvent(event);
QQuickImplicitSizeItem::focusOutEvent(event);
}
/*!
\qmlproperty bool QtQuick::TextInput::inputMethodComposing
This property holds whether the TextInput has partial text input from an
input method.
While it is composing an input method may rely on mouse or key events from
the TextInput to edit or commit the partial text. This property can be
used to determine when to disable events handlers that may interfere with
the correct operation of an input method.
*/
bool QQuickTextInput::isInputMethodComposing() const
{
#if !QT_CONFIG(im)
return false;
#else
Q_D(const QQuickTextInput);
return d->hasImState;
#endif
}
QQuickTextInputPrivate::ExtraData::ExtraData()
: padding(0)
, topPadding(0)
, leftPadding(0)
, rightPadding(0)
, bottomPadding(0)
, explicitTopPadding(false)
, explicitLeftPadding(false)
, explicitRightPadding(false)
, explicitBottomPadding(false)
, implicitResize(true)
{
}
void QQuickTextInputPrivate::init()
{
Q_Q(QQuickTextInput);
#if QT_CONFIG(clipboard)
if (QGuiApplication::clipboard()->supportsSelection())
q->setAcceptedMouseButtons(Qt::LeftButton | Qt::MiddleButton);
else
#endif
q->setAcceptedMouseButtons(Qt::LeftButton);
#if QT_CONFIG(im)
q->setFlag(QQuickItem::ItemAcceptsInputMethod);
#endif
q->setFlag(QQuickItem::ItemHasContents);
#if QT_CONFIG(clipboard)
qmlobject_connect(QGuiApplication::clipboard(), QClipboard, SIGNAL(dataChanged()),
q, QQuickTextInput, SLOT(q_canPasteChanged()));
#endif // clipboard
lastSelectionStart = 0;
lastSelectionEnd = 0;
determineHorizontalAlignment();
if (!qmlDisableDistanceField()) {
QTextOption option = m_textLayout.textOption();
option.setUseDesignMetrics(renderType != QQuickTextInput::NativeRendering);
m_textLayout.setTextOption(option);
}
m_inputControl = new QInputControl(QInputControl::LineEdit, q);
}
void QQuickTextInputPrivate::resetInputMethod()
{
Q_Q(QQuickTextInput);
if (!m_readOnly && q->hasActiveFocus() && qGuiApp)
QGuiApplication::inputMethod()->reset();
}
void QQuickTextInput::updateCursorRectangle(bool scroll)
{
Q_D(QQuickTextInput);
if (!isComponentComplete())
return;
if (scroll) {
d->updateHorizontalScroll();
d->updateVerticalScroll();
}
d->updateType = QQuickTextInputPrivate::UpdatePaintNode;
polish();
update();
emit cursorRectangleChanged();
if (d->cursorItem) {
QRectF r = cursorRectangle();
d->cursorItem->setPosition(r.topLeft());
d->cursorItem->setHeight(r.height());
}
#if QT_CONFIG(im)
updateInputMethod(Qt::ImCursorRectangle | Qt::ImAnchorRectangle);
#endif
}
void QQuickTextInput::selectionChanged()
{
Q_D(QQuickTextInput);
d->textLayoutDirty = true; //TODO: Only update rect in selection
d->updateType = QQuickTextInputPrivate::UpdatePaintNode;
polish();
update();
emit selectedTextChanged();
if (d->lastSelectionStart != d->selectionStart()) {
d->lastSelectionStart = d->selectionStart();
if (d->lastSelectionStart == -1)
d->lastSelectionStart = d->m_cursor;
emit selectionStartChanged();
}
if (d->lastSelectionEnd != d->selectionEnd()) {
d->lastSelectionEnd = d->selectionEnd();
if (d->lastSelectionEnd == -1)
d->lastSelectionEnd = d->m_cursor;
emit selectionEndChanged();
}
}
QRectF QQuickTextInput::boundingRect() const
{
Q_D(const QQuickTextInput);
int cursorWidth = d->cursorItem ? 0 : 1;
qreal hscroll = d->hscroll;
if (!d->autoScroll || d->contentSize.width() < width())
hscroll -= QQuickTextUtil::alignedX(d->contentSize.width(), width(), effectiveHAlign());
// Could include font max left/right bearings to either side of rectangle.
QRectF r(-hscroll, -d->vscroll, d->contentSize.width(), d->contentSize.height());
r.setRight(r.right() + cursorWidth);
return r;
}
QRectF QQuickTextInput::clipRect() const
{
Q_D(const QQuickTextInput);
int cursorWidth = d->cursorItem ? d->cursorItem->width() : 1;
// Could include font max left/right bearings to either side of rectangle.
QRectF r = QQuickImplicitSizeItem::clipRect();
r.setRight(r.right() + cursorWidth);
return r;
}
void QQuickTextInput::q_canPasteChanged()
{
Q_D(QQuickTextInput);
bool old = d->canPaste;
#if QT_CONFIG(clipboard)
if (const QMimeData *mimeData = QGuiApplication::clipboard()->mimeData())
d->canPaste = !d->m_readOnly && mimeData->hasText();
else
d->canPaste = false;
#endif
bool changed = d->canPaste != old || !d->canPasteValid;
d->canPasteValid = true;
if (changed)
emit canPasteChanged();
}
void QQuickTextInput::q_updateAlignment()
{
Q_D(QQuickTextInput);
if (d->determineHorizontalAlignment()) {
d->updateLayout();
updateCursorRectangle();
}
}
/*!
\internal
Updates the display text based of the current edit text
If the text has changed will emit displayTextChanged()
*/
void QQuickTextInputPrivate::updateDisplayText(bool forceUpdate)
{
QString orig = m_textLayout.text();
QString str;
if (m_echoMode == QQuickTextInput::NoEcho)
str = QString::fromLatin1("");
else
str = m_text;
if (m_echoMode == QQuickTextInput::Password) {
str.fill(m_passwordCharacter);
if (m_passwordEchoTimer.isActive() && m_cursor > 0 && m_cursor <= m_text.length()) {
int cursor = m_cursor - 1;
QChar uc = m_text.at(cursor);
str[cursor] = uc;
if (cursor > 0 && uc.unicode() >= 0xdc00 && uc.unicode() < 0xe000) {
// second half of a surrogate, check if we have the first half as well,
// if yes restore both at once
uc = m_text.at(cursor - 1);
if (uc.unicode() >= 0xd800 && uc.unicode() < 0xdc00)
str[cursor - 1] = uc;
}
}
} else if (m_echoMode == QQuickTextInput::PasswordEchoOnEdit && !m_passwordEchoEditing) {
str.fill(m_passwordCharacter);
}
// replace certain non-printable characters with spaces (to avoid
// drawing boxes when using fonts that don't have glyphs for such
// characters)
QChar* uc = str.data();
for (int i = 0; i < str.length(); ++i) {
if (uc[i] == QChar::LineSeparator
|| uc[i] == QChar::ParagraphSeparator
|| uc[i] == QChar::ObjectReplacementCharacter)
uc[i] = QChar(0x0020);
}
if (str != orig || forceUpdate) {
m_textLayout.setText(str);
updateLayout(); // polish?
emit q_func()->displayTextChanged();
}
}
qreal QQuickTextInputPrivate::getImplicitWidth() const
{
Q_Q(const QQuickTextInput);
if (!requireImplicitWidth) {
QQuickTextInputPrivate *d = const_cast<QQuickTextInputPrivate *>(this);
d->requireImplicitWidth = true;
if (q->isComponentComplete()) {
// One time cost, only incurred if implicitWidth is first requested after
// componentComplete.
QTextLayout layout(m_text);
QTextOption option = m_textLayout.textOption();
option.setTextDirection(m_layoutDirection);
option.setFlags(QTextOption::IncludeTrailingSpaces);
option.setWrapMode(QTextOption::WrapMode(wrapMode));
option.setAlignment(Qt::Alignment(q->effectiveHAlign()));
layout.setTextOption(option);
layout.setFont(font);
#if QT_CONFIG(im)
layout.setPreeditArea(m_textLayout.preeditAreaPosition(), m_textLayout.preeditAreaText());
#endif
layout.beginLayout();
QTextLine line = layout.createLine();
line.setLineWidth(INT_MAX);
d->implicitWidth = qCeil(line.naturalTextWidth()) + q->leftPadding() + q->rightPadding();
layout.endLayout();
}
}
return implicitWidth;
}
void QQuickTextInputPrivate::setTopPadding(qreal value, bool reset)
{
Q_Q(QQuickTextInput);
qreal oldPadding = q->topPadding();
if (!reset || extra.isAllocated()) {
extra.value().topPadding = value;
extra.value().explicitTopPadding = !reset;
}
if ((!reset && !qFuzzyCompare(oldPadding, value)) || (reset && !qFuzzyCompare(oldPadding, padding()))) {
updateLayout();
emit q->topPaddingChanged();
}
}
void QQuickTextInputPrivate::setLeftPadding(qreal value, bool reset)
{
Q_Q(QQuickTextInput);
qreal oldPadding = q->leftPadding();
if (!reset || extra.isAllocated()) {
extra.value().leftPadding = value;
extra.value().explicitLeftPadding = !reset;
}
if ((!reset && !qFuzzyCompare(oldPadding, value)) || (reset && !qFuzzyCompare(oldPadding, padding()))) {
updateLayout();
emit q->leftPaddingChanged();
}
}
void QQuickTextInputPrivate::setRightPadding(qreal value, bool reset)
{
Q_Q(QQuickTextInput);
qreal oldPadding = q->rightPadding();
if (!reset || extra.isAllocated()) {
extra.value().rightPadding = value;
extra.value().explicitRightPadding = !reset;
}
if ((!reset && !qFuzzyCompare(oldPadding, value)) || (reset && !qFuzzyCompare(oldPadding, padding()))) {
updateLayout();
emit q->rightPaddingChanged();
}
}
void QQuickTextInputPrivate::setBottomPadding(qreal value, bool reset)
{
Q_Q(QQuickTextInput);
qreal oldPadding = q->bottomPadding();
if (!reset || extra.isAllocated()) {
extra.value().bottomPadding = value;
extra.value().explicitBottomPadding = !reset;
}
if ((!reset && !qFuzzyCompare(oldPadding, value)) || (reset && !qFuzzyCompare(oldPadding, padding()))) {
updateLayout();
emit q->bottomPaddingChanged();
}
}
bool QQuickTextInputPrivate::isImplicitResizeEnabled() const
{
return !extra.isAllocated() || extra->implicitResize;
}
void QQuickTextInputPrivate::setImplicitResizeEnabled(bool enabled)
{
if (!enabled)
extra.value().implicitResize = false;
else if (extra.isAllocated())
extra->implicitResize = true;
}
void QQuickTextInputPrivate::updateLayout()
{
Q_Q(QQuickTextInput);
if (!q->isComponentComplete())
return;
QTextOption option = m_textLayout.textOption();
option.setTextDirection(layoutDirection());
option.setWrapMode(QTextOption::WrapMode(wrapMode));
option.setAlignment(Qt::Alignment(q->effectiveHAlign()));
if (!qmlDisableDistanceField())
option.setUseDesignMetrics(renderType != QQuickTextInput::NativeRendering);
m_textLayout.setTextOption(option);
m_textLayout.setFont(font);
m_textLayout.beginLayout();
QTextLine line = m_textLayout.createLine();
if (requireImplicitWidth) {
line.setLineWidth(INT_MAX);
const bool wasInLayout = inLayout;
inLayout = true;
if (isImplicitResizeEnabled())
q->setImplicitWidth(qCeil(line.naturalTextWidth()) + q->leftPadding() + q->rightPadding());
inLayout = wasInLayout;
if (inLayout) // probably the result of a binding loop, but by letting it
return; // get this far we'll get a warning to that effect.
}
qreal lineWidth = q->widthValid() || !isImplicitResizeEnabled() ? q->width() - q->leftPadding() - q->rightPadding() : INT_MAX;
qreal height = 0;
qreal width = 0;
do {
line.setLineWidth(lineWidth);
line.setPosition(QPointF(0, height));
height += line.height();
width = qMax(width, line.naturalTextWidth());
line = m_textLayout.createLine();
} while (line.isValid());
m_textLayout.endLayout();
option.setWrapMode(QTextOption::NoWrap);
m_textLayout.setTextOption(option);
textLayoutDirty = true;
const QSizeF previousSize = contentSize;
contentSize = QSizeF(width, height);
updateType = UpdatePaintNode;
q->polish();
q->update();
if (isImplicitResizeEnabled()) {
if (!requireImplicitWidth && !q->widthValid())
q->setImplicitSize(width + q->leftPadding() + q->rightPadding(), height + q->topPadding() + q->bottomPadding());
else
q->setImplicitHeight(height + q->topPadding() + q->bottomPadding());
}
updateBaselineOffset();
if (previousSize != contentSize)
emit q->contentSizeChanged();
}
/*!
\internal
\brief QQuickTextInputPrivate::updateBaselineOffset
Assumes contentSize.height() is already calculated.
*/
void QQuickTextInputPrivate::updateBaselineOffset()
{
Q_Q(QQuickTextInput);
if (!q->isComponentComplete())
return;
QFontMetricsF fm(font);
qreal yoff = 0;
if (q->heightValid()) {
const qreal surplusHeight = q->height() - contentSize.height() - q->topPadding() - q->bottomPadding();
if (vAlign == QQuickTextInput::AlignBottom)
yoff = surplusHeight;
else if (vAlign == QQuickTextInput::AlignVCenter)
yoff = surplusHeight/2;
}
q->setBaselineOffset(fm.ascent() + yoff + q->topPadding());
}
#if QT_CONFIG(clipboard)
/*!
\internal
Copies the currently selected text into the clipboard using the given
\a mode.
\note If the echo mode is set to a mode other than Normal then copy
will not work. This is to prevent using copy as a method of bypassing
password features of the line control.
*/
void QQuickTextInputPrivate::copy(QClipboard::Mode mode) const
{
QString t = selectedText();
if (!t.isEmpty() && m_echoMode == QQuickTextInput::Normal) {
QGuiApplication::clipboard()->setText(t, mode);
}
}
/*!
\internal
Inserts the text stored in the application clipboard into the line
control.
\sa insert()
*/
void QQuickTextInputPrivate::paste(QClipboard::Mode clipboardMode)
{
QString clip = QGuiApplication::clipboard()->text(clipboardMode);
if (!clip.isEmpty() || hasSelectedText()) {
separate(); //make it a separate undo/redo command
insert(clip);
separate();
}
}
#endif // clipboard
#if QT_CONFIG(im)
/*!
\internal
*/
void QQuickTextInputPrivate::commitPreedit()
{
Q_Q(QQuickTextInput);
if (!hasImState)
return;
QGuiApplication::inputMethod()->commit();
if (!hasImState)
return;
QInputMethodEvent ev;
QCoreApplication::sendEvent(q, &ev);
}
void QQuickTextInputPrivate::cancelPreedit()
{
Q_Q(QQuickTextInput);
if (!hasImState)
return;
QGuiApplication::inputMethod()->reset();
QInputMethodEvent ev;
QCoreApplication::sendEvent(q, &ev);
}
#endif // im
/*!
\internal
Handles the behavior for the backspace key or function.
Removes the current selection if there is a selection, otherwise
removes the character prior to the cursor position.
\sa del()
*/
void QQuickTextInputPrivate::backspace()
{
int priorState = m_undoState;
if (separateSelection()) {
removeSelectedText();
} else if (m_cursor) {
--m_cursor;
if (m_maskData)
m_cursor = prevMaskBlank(m_cursor);
QChar uc = m_text.at(m_cursor);
if (m_cursor > 0 && uc.unicode() >= 0xdc00 && uc.unicode() < 0xe000) {
// second half of a surrogate, check if we have the first half as well,
// if yes delete both at once
uc = m_text.at(m_cursor - 1);
if (uc.unicode() >= 0xd800 && uc.unicode() < 0xdc00) {
internalDelete(true);
--m_cursor;
}
}
internalDelete(true);
}
finishChange(priorState);
}
/*!
\internal
Handles the behavior for the delete key or function.
Removes the current selection if there is a selection, otherwise
removes the character after the cursor position.
\sa del()
*/
void QQuickTextInputPrivate::del()
{
int priorState = m_undoState;
if (separateSelection()) {
removeSelectedText();
} else {
int n = m_textLayout.nextCursorPosition(m_cursor) - m_cursor;
while (n--)
internalDelete();
}
finishChange(priorState);
}
/*!
\internal
Inserts the given \a newText at the current cursor position.
If there is any selected text it is removed prior to insertion of
the new text.
*/
void QQuickTextInputPrivate::insert(const QString &newText)
{
int priorState = m_undoState;
if (separateSelection())
removeSelectedText();
internalInsert(newText);
finishChange(priorState);
}
/*!
\internal
Clears the line control text.
*/
void QQuickTextInputPrivate::clear()
{
int priorState = m_undoState;
separateSelection();
m_selstart = 0;
m_selend = m_text.length();
removeSelectedText();
separate();
finishChange(priorState, /*update*/false, /*edited*/false);
}
/*!
\internal
Sets \a length characters from the given \a start position as selected.
The given \a start position must be within the current text for
the line control. If \a length characters cannot be selected, then
the selection will extend to the end of the current text.
*/
void QQuickTextInputPrivate::setSelection(int start, int length)
{
Q_Q(QQuickTextInput);
#if QT_CONFIG(im)
commitPreedit();
#endif
if (start < 0 || start > m_text.length()) {
qWarning("QQuickTextInputPrivate::setSelection: Invalid start position");
return;
}
if (length > 0) {
if (start == m_selstart && start + length == m_selend && m_cursor == m_selend)
return;
m_selstart = start;
m_selend = qMin(start + length, m_text.length());
m_cursor = m_selend;
} else if (length < 0){
if (start == m_selend && start + length == m_selstart && m_cursor == m_selstart)
return;
m_selstart = qMax(start + length, 0);
m_selend = start;
m_cursor = m_selstart;
} else if (m_selstart != m_selend) {
m_selstart = 0;
m_selend = 0;
m_cursor = start;
} else {
m_cursor = start;
emitCursorPositionChanged();
return;
}
emit q->selectionChanged();
emitCursorPositionChanged();
#if QT_CONFIG(im)
q->updateInputMethod(Qt::ImCursorRectangle | Qt::ImAnchorRectangle | Qt::ImCursorPosition | Qt::ImAnchorPosition
| Qt::ImCurrentSelection);
#endif
}
/*!
\internal
Sets the password echo editing to \a editing. If password echo editing
is true, then the text of the password is displayed even if the echo
mode is set to QLineEdit::PasswordEchoOnEdit. Password echoing editing
does not affect other echo modes.
*/
void QQuickTextInputPrivate::updatePasswordEchoEditing(bool editing)
{
cancelPasswordEchoTimer();
m_passwordEchoEditing = editing;
updateDisplayText();
}
/*!
\internal
Fixes the current text so that it is valid given any set validators.
Returns true if the text was changed. Otherwise returns false.
*/
bool QQuickTextInputPrivate::fixup() // this function assumes that validate currently returns != Acceptable
{
#if QT_CONFIG(validator)
if (m_validator) {
QString textCopy = m_text;
int cursorCopy = m_cursor;
m_validator->fixup(textCopy);
if (m_validator->validate(textCopy, cursorCopy) == QValidator::Acceptable) {
if (textCopy != m_text || cursorCopy != m_cursor)
internalSetText(textCopy, cursorCopy);
return true;
}
}
#endif
return false;
}
/*!
\internal
Moves the cursor to the given position \a pos. If \a mark is true will
adjust the currently selected text.
*/
void QQuickTextInputPrivate::moveCursor(int pos, bool mark)
{
Q_Q(QQuickTextInput);
#if QT_CONFIG(im)
commitPreedit();
#endif
if (pos != m_cursor) {
separate();
if (m_maskData)
pos = pos > m_cursor ? nextMaskBlank(pos) : prevMaskBlank(pos);
}
if (mark) {
int anchor;
if (m_selend > m_selstart && m_cursor == m_selstart)
anchor = m_selend;
else if (m_selend > m_selstart && m_cursor == m_selend)
anchor = m_selstart;
else
anchor = m_cursor;
m_selstart = qMin(anchor, pos);
m_selend = qMax(anchor, pos);
} else {
internalDeselect();
}
m_cursor = pos;
if (mark || m_selDirty) {
m_selDirty = false;
emit q->selectionChanged();
}
emitCursorPositionChanged();
#if QT_CONFIG(im)
q->updateInputMethod();
#endif
}
#if QT_CONFIG(im)
/*!
\internal
Applies the given input method event \a event to the text of the line
control
*/
void QQuickTextInputPrivate::processInputMethodEvent(QInputMethodEvent *event)
{
Q_Q(QQuickTextInput);
int priorState = -1;
bool isGettingInput = !event->commitString().isEmpty()
|| event->preeditString() != preeditAreaText()
|| event->replacementLength() > 0;
bool cursorPositionChanged = false;
bool selectionChange = false;
m_preeditDirty = event->preeditString() != preeditAreaText();
if (isGettingInput) {
// If any text is being input, remove selected text.
priorState = m_undoState;
separateSelection();
if (m_echoMode == QQuickTextInput::PasswordEchoOnEdit && !m_passwordEchoEditing) {
updatePasswordEchoEditing(true);
m_selstart = 0;
m_selend = m_text.length();
}
removeSelectedText();
}
int c = m_cursor; // cursor position after insertion of commit string
if (event->replacementStart() <= 0)
c += event->commitString().length() - qMin(-event->replacementStart(), event->replacementLength());
m_cursor += event->replacementStart();
if (m_cursor < 0)
m_cursor = 0;
// insert commit string
if (event->replacementLength()) {
m_selstart = m_cursor;
m_selend = m_selstart + event->replacementLength();
m_selend = qMin(m_selend, m_text.length());
removeSelectedText();
}
if (!event->commitString().isEmpty()) {
internalInsert(event->commitString());
cursorPositionChanged = true;
} else {
m_cursor = qBound(0, c, m_text.length());
}
for (int i = 0; i < event->attributes().size(); ++i) {
const QInputMethodEvent::Attribute &a = event->attributes().at(i);
if (a.type == QInputMethodEvent::Selection) {
m_cursor = qBound(0, a.start + a.length, m_text.length());
if (a.length) {
m_selstart = qMax(0, qMin(a.start, m_text.length()));
m_selend = m_cursor;
if (m_selend < m_selstart) {
qSwap(m_selstart, m_selend);
}
selectionChange = true;
} else {
m_selstart = m_selend = 0;
}
cursorPositionChanged = true;
}
}
QString oldPreeditString = m_textLayout.preeditAreaText();
m_textLayout.setPreeditArea(m_cursor, event->preeditString());
if (oldPreeditString != m_textLayout.preeditAreaText())
emit q->preeditTextChanged();
const int oldPreeditCursor = m_preeditCursor;
m_preeditCursor = event->preeditString().length();
hasImState = !event->preeditString().isEmpty();
bool cursorVisible = true;
QVector<QTextLayout::FormatRange> formats;
for (int i = 0; i < event->attributes().size(); ++i) {
const QInputMethodEvent::Attribute &a = event->attributes().at(i);
if (a.type == QInputMethodEvent::Cursor) {
hasImState = true;
m_preeditCursor = a.start;
cursorVisible = a.length != 0;
} else if (a.type == QInputMethodEvent::TextFormat) {
hasImState = true;
QTextCharFormat f = qvariant_cast<QTextFormat>(a.value).toCharFormat();
if (f.isValid()) {
QTextLayout::FormatRange o;
o.start = a.start + m_cursor;
o.length = a.length;
o.format = f;
formats.append(o);
}
}
}
m_textLayout.setFormats(formats);
updateDisplayText(/*force*/ true);
if ((cursorPositionChanged && !emitCursorPositionChanged())
|| m_preeditCursor != oldPreeditCursor
|| isGettingInput) {
q->updateCursorRectangle();
}
if (isGettingInput)
finishChange(priorState);
q->setCursorVisible(cursorVisible);
if (selectionChange) {
emit q->selectionChanged();
q->updateInputMethod(Qt::ImCursorRectangle | Qt::ImAnchorRectangle
| Qt::ImCurrentSelection);
}
}
#endif // im
/*!
\internal
Sets the selection to cover the word at the given cursor position.
The word boundaries are defined by the behavior of QTextLayout::SkipWords
cursor mode.
*/
void QQuickTextInputPrivate::selectWordAtPos(int cursor)
{
int next = cursor + 1;
if (next > end())
--next;
int c = m_textLayout.previousCursorPosition(next, QTextLayout::SkipWords);
moveCursor(c, false);
// ## text layout should support end of words.
int end = m_textLayout.nextCursorPosition(c, QTextLayout::SkipWords);
while (end > cursor && m_text[end-1].isSpace())
--end;
moveCursor(end, true);
}
/*!
\internal
Completes a change to the line control text. If the change is not valid
will undo the line control state back to the given \a validateFromState.
If \a edited is true and the change is valid, will emit textEdited() in
addition to textChanged(). Otherwise only emits textChanged() on a valid
change.
The \a update value is currently unused.
*/
bool QQuickTextInputPrivate::finishChange(int validateFromState, bool update, bool edited)
{
Q_Q(QQuickTextInput);
Q_UNUSED(update)
#if QT_CONFIG(im)
bool inputMethodAttributesChanged = m_textDirty || m_selDirty;
#endif
bool alignmentChanged = false;
bool textChanged = false;
if (m_textDirty) {
// do validation
bool wasValidInput = m_validInput;
bool wasAcceptable = m_acceptableInput;
m_validInput = true;
m_acceptableInput = true;
#if QT_CONFIG(validator)
if (m_validator) {
QString textCopy = m_text;
if (m_maskData)
textCopy = maskString(0, m_text, true);
int cursorCopy = m_cursor;
QValidator::State state = m_validator->validate(textCopy, cursorCopy);
if (m_maskData)
textCopy = m_text;
m_validInput = state != QValidator::Invalid;
m_acceptableInput = state == QValidator::Acceptable;
if (m_validInput && !m_maskData) {
if (m_text != textCopy) {
internalSetText(textCopy, cursorCopy);
return true;
}
m_cursor = cursorCopy;
}
}
#endif
if (m_maskData)
checkIsValid();
if (validateFromState >= 0 && wasValidInput && !m_validInput) {
if (m_transactions.count())
return false;
internalUndo(validateFromState);
m_history.resize(m_undoState);
m_validInput = true;
m_acceptableInput = wasAcceptable;
m_textDirty = false;
}
if (m_textDirty) {
textChanged = true;
m_textDirty = false;
#if QT_CONFIG(im)
m_preeditDirty = false;
#endif
alignmentChanged = determineHorizontalAlignment();
if (edited)
emit q->textEdited();
emit q->textChanged();
}
updateDisplayText(alignmentChanged);
if (m_acceptableInput != wasAcceptable)
emit q->acceptableInputChanged();
}
#if QT_CONFIG(im)
if (m_preeditDirty) {
m_preeditDirty = false;
if (determineHorizontalAlignment()) {
alignmentChanged = true;
updateLayout();
}
}
#endif
if (m_selDirty) {
m_selDirty = false;
emit q->selectionChanged();
}
#if QT_CONFIG(im)
inputMethodAttributesChanged |= (m_cursor != m_lastCursorPos);
if (inputMethodAttributesChanged)
q->updateInputMethod();
#endif
emitUndoRedoChanged();
if (!emitCursorPositionChanged() && (alignmentChanged || textChanged))
q->updateCursorRectangle();
return true;
}
/*!
\internal
An internal function for setting the text of the line control.
*/
void QQuickTextInputPrivate::internalSetText(const QString &txt, int pos, bool edited)
{
internalDeselect();
QString oldText = m_text;
if (m_maskData) {
m_text = maskString(0, txt, true);
m_text += clearString(m_text.length(), m_maxLength - m_text.length());
} else {
m_text = txt.isEmpty() ? txt : txt.left(m_maxLength);
}
m_history.clear();
m_undoState = 0;
m_cursor = (pos < 0 || pos > m_text.length()) ? m_text.length() : pos;
m_textDirty = (oldText != m_text);
bool changed = finishChange(-1, true, edited);
#if !QT_CONFIG(accessibility)
Q_UNUSED(changed)
#else
Q_Q(QQuickTextInput);
if (changed && QAccessible::isActive()) {
if (QObject *acc = QQuickAccessibleAttached::findAccessible(q, QAccessible::EditableText)) {
QAccessibleTextUpdateEvent ev(acc, 0, oldText, m_text);
QAccessible::updateAccessibility(&ev);
}
}
#endif
}
/*!
\internal
Adds the given \a command to the undo history
of the line control. Does not apply the command.
*/
void QQuickTextInputPrivate::addCommand(const Command &cmd)
{
if (m_separator && m_undoState && m_history[m_undoState - 1].type != Separator) {
m_history.resize(m_undoState + 2);
m_history[m_undoState++] = Command(Separator, m_cursor, 0, m_selstart, m_selend);
} else {
m_history.resize(m_undoState + 1);
}
m_separator = false;
m_history[m_undoState++] = cmd;
}
/*!
\internal
Inserts the given string \a s into the line
control.
Also adds the appropriate commands into the undo history.
This function does not call finishChange(), and may leave the text
in an invalid state.
*/
void QQuickTextInputPrivate::internalInsert(const QString &s)
{
Q_Q(QQuickTextInput);
if (m_echoMode == QQuickTextInput::Password) {
if (m_passwordMaskDelay > 0)
m_passwordEchoTimer.start(m_passwordMaskDelay, q);
}
Q_ASSERT(!hasSelectedText()); // insert(), processInputMethodEvent() call removeSelectedText() first.
if (m_maskData) {
QString ms = maskString(m_cursor, s);
for (int i = 0; i < ms.length(); ++i) {
addCommand (Command(DeleteSelection, m_cursor + i, m_text.at(m_cursor + i), -1, -1));
addCommand(Command(Insert, m_cursor + i, ms.at(i), -1, -1));
}
m_text.replace(m_cursor, ms.length(), ms);
m_cursor += ms.length();
m_cursor = nextMaskBlank(m_cursor);
m_textDirty = true;
} else {
int remaining = m_maxLength - m_text.length();
if (remaining != 0) {
const QStringRef remainingStr = s.leftRef(remaining);
m_text.insert(m_cursor, remainingStr);
for (auto e : remainingStr)
addCommand(Command(Insert, m_cursor++, e, -1, -1));
m_textDirty = true;
}
}
}
/*!
\internal
deletes a single character from the current text. If \a wasBackspace,
the character prior to the cursor is removed. Otherwise the character
after the cursor is removed.
Also adds the appropriate commands into the undo history.
This function does not call finishChange(), and may leave the text
in an invalid state.
*/
void QQuickTextInputPrivate::internalDelete(bool wasBackspace)
{
if (m_cursor < m_text.length()) {
cancelPasswordEchoTimer();
Q_ASSERT(!hasSelectedText()); // del(), backspace() call removeSelectedText() first.
addCommand(Command((CommandType)((m_maskData ? 2 : 0) + (wasBackspace ? Remove : Delete)),
m_cursor, m_text.at(m_cursor), -1, -1));
if (m_maskData) {
m_text.replace(m_cursor, 1, clearString(m_cursor, 1));
addCommand(Command(Insert, m_cursor, m_text.at(m_cursor), -1, -1));
} else {
m_text.remove(m_cursor, 1);
}
m_textDirty = true;
}
}
/*!
\internal
removes the currently selected text from the line control.
Also adds the appropriate commands into the undo history.
This function does not call finishChange(), and may leave the text
in an invalid state.
*/
void QQuickTextInputPrivate::removeSelectedText()
{
if (m_selstart < m_selend && m_selend <= m_text.length()) {
cancelPasswordEchoTimer();
int i ;
if (m_selstart <= m_cursor && m_cursor < m_selend) {
// cursor is within the selection. Split up the commands
// to be able to restore the correct cursor position
for (i = m_cursor; i >= m_selstart; --i)
addCommand (Command(DeleteSelection, i, m_text.at(i), -1, 1));
for (i = m_selend - 1; i > m_cursor; --i)
addCommand (Command(DeleteSelection, i - m_cursor + m_selstart - 1, m_text.at(i), -1, -1));
} else {
for (i = m_selend-1; i >= m_selstart; --i)
addCommand (Command(RemoveSelection, i, m_text.at(i), -1, -1));
}
if (m_maskData) {
m_text.replace(m_selstart, m_selend - m_selstart, clearString(m_selstart, m_selend - m_selstart));
for (int i = 0; i < m_selend - m_selstart; ++i)
addCommand(Command(Insert, m_selstart + i, m_text.at(m_selstart + i), -1, -1));
} else {
m_text.remove(m_selstart, m_selend - m_selstart);
}
if (m_cursor > m_selstart)
m_cursor -= qMin(m_cursor, m_selend) - m_selstart;
internalDeselect();
m_textDirty = true;
}
}
/*!
\internal
Adds the current selection to the undo history.
Returns true if there is a current selection and false otherwise.
*/
bool QQuickTextInputPrivate::separateSelection()
{
if (hasSelectedText()) {
separate();
addCommand(Command(SetSelection, m_cursor, 0, m_selstart, m_selend));
return true;
} else {
return false;
}
}
/*!
\internal
Parses the input mask specified by \a maskFields to generate
the mask data used to handle input masks.
*/
void QQuickTextInputPrivate::parseInputMask(const QString &maskFields)
{
int delimiter = maskFields.indexOf(QLatin1Char(';'));
if (maskFields.isEmpty() || delimiter == 0) {
if (m_maskData) {
delete [] m_maskData;
m_maskData = nullptr;
m_maxLength = 32767;
internalSetText(QString());
}
return;
}
if (delimiter == -1) {
m_blank = QLatin1Char(' ');
m_inputMask = maskFields;
} else {
m_inputMask = maskFields.left(delimiter);
m_blank = (delimiter + 1 < maskFields.length()) ? maskFields[delimiter + 1] : QLatin1Char(' ');
}
// calculate m_maxLength / m_maskData length
m_maxLength = 0;
QChar c = 0;
for (int i=0; i<m_inputMask.length(); i++) {
c = m_inputMask.at(i);
if (i > 0 && m_inputMask.at(i-1) == QLatin1Char('\\')) {
m_maxLength++;
continue;
}
if (c != QLatin1Char('\\') && c != QLatin1Char('!') &&
c != QLatin1Char('<') && c != QLatin1Char('>') &&
c != QLatin1Char('{') && c != QLatin1Char('}') &&
c != QLatin1Char('[') && c != QLatin1Char(']'))
m_maxLength++;
}
delete [] m_maskData;
m_maskData = new MaskInputData[m_maxLength];
MaskInputData::Casemode m = MaskInputData::NoCaseMode;
c = 0;
bool s;
bool escape = false;
int index = 0;
for (int i = 0; i < m_inputMask.length(); i++) {
c = m_inputMask.at(i);
if (escape) {
s = true;
m_maskData[index].maskChar = c;
m_maskData[index].separator = s;
m_maskData[index].caseMode = m;
index++;
escape = false;
} else if (c == QLatin1Char('<')) {
m = MaskInputData::Lower;
} else if (c == QLatin1Char('>')) {
m = MaskInputData::Upper;
} else if (c == QLatin1Char('!')) {
m = MaskInputData::NoCaseMode;
} else if (c != QLatin1Char('{') && c != QLatin1Char('}') && c != QLatin1Char('[') && c != QLatin1Char(']')) {
switch (c.unicode()) {
case 'A':
case 'a':
case 'N':
case 'n':
case 'X':
case 'x':
case '9':
case '0':
case 'D':
case 'd':
case '#':
case 'H':
case 'h':
case 'B':
case 'b':
s = false;
break;
case '\\':
escape = true;
Q_FALLTHROUGH();
default:
s = true;
break;
}
if (!escape) {
m_maskData[index].maskChar = c;
m_maskData[index].separator = s;
m_maskData[index].caseMode = m;
index++;
}
}
}
internalSetText(m_text);
}
/*!
\internal
checks if the key is valid compared to the inputMask
*/
bool QQuickTextInputPrivate::isValidInput(QChar key, QChar mask) const
{
switch (mask.unicode()) {
case 'A':
if (key.isLetter())
return true;
break;
case 'a':
if (key.isLetter() || key == m_blank)
return true;
break;
case 'N':
if (key.isLetterOrNumber())
return true;
break;
case 'n':
if (key.isLetterOrNumber() || key == m_blank)
return true;
break;
case 'X':
if (key.isPrint() && key != m_blank)
return true;
break;
case 'x':
if (key.isPrint() || key == m_blank)
return true;
break;
case '9':
if (key.isNumber())
return true;
break;
case '0':
if (key.isNumber() || key == m_blank)
return true;
break;
case 'D':
if (key.isNumber() && key.digitValue() > 0)
return true;
break;
case 'd':
if ((key.isNumber() && key.digitValue() > 0) || key == m_blank)
return true;
break;
case '#':
if (key.isNumber() || key == QLatin1Char('+') || key == QLatin1Char('-') || key == m_blank)
return true;
break;
case 'B':
if (key == QLatin1Char('0') || key == QLatin1Char('1'))
return true;
break;
case 'b':
if (key == QLatin1Char('0') || key == QLatin1Char('1') || key == m_blank)
return true;
break;
case 'H':
if (key.isNumber() || (key >= QLatin1Char('a') && key <= QLatin1Char('f')) || (key >= QLatin1Char('A') && key <= QLatin1Char('F')))
return true;
break;
case 'h':
if (key.isNumber() || (key >= QLatin1Char('a') && key <= QLatin1Char('f')) || (key >= QLatin1Char('A') && key <= QLatin1Char('F')) || key == m_blank)
return true;
break;
default:
break;
}
return false;
}
/*!
\internal
Returns true if the given text \a str is valid for any
validator or input mask set for the line control.
Otherwise returns false
*/
QQuickTextInputPrivate::ValidatorState QQuickTextInputPrivate::hasAcceptableInput(const QString &str) const
{
#if QT_CONFIG(validator)
QString textCopy = str;
int cursorCopy = m_cursor;
if (m_validator) {
QValidator::State state = m_validator->validate(textCopy, cursorCopy);
if (state != QValidator::Acceptable)
return ValidatorState(state);
}
#endif
if (!m_maskData)
return AcceptableInput;
if (str.length() != m_maxLength)
return InvalidInput;
for (int i=0; i < m_maxLength; ++i) {
if (m_maskData[i].separator) {
if (str.at(i) != m_maskData[i].maskChar)
return InvalidInput;
} else {
if (!isValidInput(str.at(i), m_maskData[i].maskChar))
return InvalidInput;
}
}
return AcceptableInput;
}
/*!
\internal
Applies the inputMask on \a str starting from position \a pos in the mask. \a clear
specifies from where characters should be gotten when a separator is met in \a str - true means
that blanks will be used, false that previous input is used.
Calling this when no inputMask is set is undefined.
*/
QString QQuickTextInputPrivate::maskString(uint pos, const QString &str, bool clear) const
{
if (pos >= (uint)m_maxLength)
return QString::fromLatin1("");
QString fill;
fill = clear ? clearString(0, m_maxLength) : m_text;
int strIndex = 0;
QString s = QString::fromLatin1("");
int i = pos;
while (i < m_maxLength) {
if (strIndex < str.length()) {
if (m_maskData[i].separator) {
s += m_maskData[i].maskChar;
if (str[strIndex] == m_maskData[i].maskChar)
strIndex++;
++i;
} else {
if (isValidInput(str[strIndex], m_maskData[i].maskChar)) {
switch (m_maskData[i].caseMode) {
case MaskInputData::Upper:
s += str[strIndex].toUpper();
break;
case MaskInputData::Lower:
s += str[strIndex].toLower();
break;
default:
s += str[strIndex];
}
++i;
} else {
// search for separator first
int n = findInMask(i, true, true, str[strIndex]);
if (n != -1) {
if (str.length() != 1 || i == 0 || (i > 0 && (!m_maskData[i-1].separator || m_maskData[i-1].maskChar != str[strIndex]))) {
s += fill.midRef(i, n-i+1);
i = n + 1; // update i to find + 1
}
} else {
// search for valid m_blank if not
n = findInMask(i, true, false, str[strIndex]);
if (n != -1) {
s += fill.midRef(i, n-i);
switch (m_maskData[n].caseMode) {
case MaskInputData::Upper:
s += str[strIndex].toUpper();
break;
case MaskInputData::Lower:
s += str[strIndex].toLower();
break;
default:
s += str[strIndex];
}
i = n + 1; // updates i to find + 1
}
}
}
++strIndex;
}
} else
break;
}
return s;
}
/*!
\internal
Returns a "cleared" string with only separators and blank chars.
Calling this when no inputMask is set is undefined.
*/
QString QQuickTextInputPrivate::clearString(uint pos, uint len) const
{
if (pos >= (uint)m_maxLength)
return QString();
QString s;
int end = qMin((uint)m_maxLength, pos + len);
for (int i = pos; i < end; ++i)
if (m_maskData[i].separator)
s += m_maskData[i].maskChar;
else
s += m_blank;
return s;
}
/*!
\internal
Strips blank parts of the input in a QQuickTextInputPrivate when an inputMask is set,
separators are still included. Typically "127.0__.0__.1__" becomes "127.0.0.1".
*/
QString QQuickTextInputPrivate::stripString(const QString &str) const
{
if (!m_maskData)
return str;
QString s;
int end = qMin(m_maxLength, str.length());
for (int i = 0; i < end; ++i) {
if (m_maskData[i].separator)
s += m_maskData[i].maskChar;
else if (str[i] != m_blank)
s += str[i];
}
return s;
}
/*!
\internal
searches forward/backward in m_maskData for either a separator or a m_blank
*/
int QQuickTextInputPrivate::findInMask(int pos, bool forward, bool findSeparator, QChar searchChar) const
{
if (pos >= m_maxLength || pos < 0)
return -1;
int end = forward ? m_maxLength : -1;
int step = forward ? 1 : -1;
int i = pos;
while (i != end) {
if (findSeparator) {
if (m_maskData[i].separator && m_maskData[i].maskChar == searchChar)
return i;
} else {
if (!m_maskData[i].separator) {
if (searchChar.isNull())
return i;
else if (isValidInput(searchChar, m_maskData[i].maskChar))
return i;
}
}
i += step;
}
return -1;
}
void QQuickTextInputPrivate::internalUndo(int until)
{
if (!isUndoAvailable())
return;
cancelPasswordEchoTimer();
internalDeselect();
while (m_undoState && m_undoState > until) {
Command& cmd = m_history[--m_undoState];
switch (cmd.type) {
case Insert:
m_text.remove(cmd.pos, 1);
m_cursor = cmd.pos;
break;
case SetSelection:
m_selstart = cmd.selStart;
m_selend = cmd.selEnd;
m_cursor = cmd.pos;
break;
case Remove:
case RemoveSelection:
m_text.insert(cmd.pos, cmd.uc);
m_cursor = cmd.pos + 1;
break;
case Delete:
case DeleteSelection:
m_text.insert(cmd.pos, cmd.uc);
m_cursor = cmd.pos;
break;
case Separator:
continue;
}
if (until < 0 && m_undoState) {
Command& next = m_history[m_undoState-1];
if (next.type != cmd.type
&& next.type < RemoveSelection
&& (cmd.type < RemoveSelection || next.type == Separator)) {
break;
}
}
}
separate();
m_textDirty = true;
}
void QQuickTextInputPrivate::internalRedo()
{
if (!isRedoAvailable())
return;
internalDeselect();
while (m_undoState < m_history.size()) {
Command& cmd = m_history[m_undoState++];
switch (cmd.type) {
case Insert:
m_text.insert(cmd.pos, cmd.uc);
m_cursor = cmd.pos + 1;
break;
case SetSelection:
m_selstart = cmd.selStart;
m_selend = cmd.selEnd;
m_cursor = cmd.pos;
break;
case Remove:
case Delete:
case RemoveSelection:
case DeleteSelection:
m_text.remove(cmd.pos, 1);
m_selstart = cmd.selStart;
m_selend = cmd.selEnd;
m_cursor = cmd.pos;
break;
case Separator:
m_selstart = cmd.selStart;
m_selend = cmd.selEnd;
m_cursor = cmd.pos;
break;
}
if (m_undoState < m_history.size()) {
Command& next = m_history[m_undoState];
if (next.type != cmd.type
&& cmd.type < RemoveSelection
&& next.type != Separator
&& (next.type < RemoveSelection || cmd.type == Separator)) {
break;
}
}
}
m_textDirty = true;
}
void QQuickTextInputPrivate::emitUndoRedoChanged()
{
Q_Q(QQuickTextInput);
const bool previousUndo = canUndo;
const bool previousRedo = canRedo;
canUndo = isUndoAvailable();
canRedo = isRedoAvailable();
if (previousUndo != canUndo)
emit q->canUndoChanged();
if (previousRedo != canRedo)
emit q->canRedoChanged();
}
/*!
\internal
If the current cursor position differs from the last emitted cursor
position, emits cursorPositionChanged().
*/
bool QQuickTextInputPrivate::emitCursorPositionChanged()
{
Q_Q(QQuickTextInput);
if (m_cursor != m_lastCursorPos) {
m_lastCursorPos = m_cursor;
q->updateCursorRectangle();
emit q->cursorPositionChanged();
if (!hasSelectedText()) {
if (lastSelectionStart != m_cursor) {
lastSelectionStart = m_cursor;
emit q->selectionStartChanged();
}
if (lastSelectionEnd != m_cursor) {
lastSelectionEnd = m_cursor;
emit q->selectionEndChanged();
}
}
#if QT_CONFIG(accessibility)
if (QAccessible::isActive()) {
if (QObject *acc = QQuickAccessibleAttached::findAccessible(q, QAccessible::EditableText)) {
QAccessibleTextCursorEvent ev(acc, m_cursor);
QAccessible::updateAccessibility(&ev);
}
}
#endif
return true;
}
return false;
}
void QQuickTextInputPrivate::setBlinkingCursorEnabled(bool enable)
{
if (enable == m_blinkEnabled)
return;
m_blinkEnabled = enable;
updateCursorBlinking();
if (enable)
connect(qApp->styleHints(), &QStyleHints::cursorFlashTimeChanged, this, &QQuickTextInputPrivate::updateCursorBlinking);
else
disconnect(qApp->styleHints(), &QStyleHints::cursorFlashTimeChanged, this, &QQuickTextInputPrivate::updateCursorBlinking);
}
void QQuickTextInputPrivate::updateCursorBlinking()
{
Q_Q(QQuickTextInput);
if (m_blinkTimer) {
q->killTimer(m_blinkTimer);
m_blinkTimer = 0;
}
if (m_blinkEnabled && cursorVisible && !cursorItem && !m_readOnly) {
int flashTime = QGuiApplication::styleHints()->cursorFlashTime();
if (flashTime >= 2)
m_blinkTimer = q->startTimer(flashTime / 2);
}
m_blinkStatus = 1;
updateType = UpdatePaintNode;
q->polish();
q->update();
}
void QQuickTextInput::timerEvent(QTimerEvent *event)
{
Q_D(QQuickTextInput);
if (event->timerId() == d->m_blinkTimer) {
d->m_blinkStatus = !d->m_blinkStatus;
d->updateType = QQuickTextInputPrivate::UpdatePaintNode;
polish();
update();
} else if (event->timerId() == d->m_passwordEchoTimer.timerId()) {
d->m_passwordEchoTimer.stop();
d->updateDisplayText();
updateCursorRectangle();
}
}
void QQuickTextInputPrivate::processKeyEvent(QKeyEvent* event)
{
Q_Q(QQuickTextInput);
if (event->key() == Qt::Key_Enter || event->key() == Qt::Key_Return) {
if (hasAcceptableInput(m_text) == AcceptableInput || fixup()) {
QInputMethod *inputMethod = QGuiApplication::inputMethod();
inputMethod->commit();
if (!(q->inputMethodHints() & Qt::ImhMultiLine))
inputMethod->hide();
if (activeFocus) {
// If we lost focus after hiding the virtual keyboard, we've already emitted
// editingFinished from handleFocusEvent. Otherwise we emit it now.
emit q->editingFinished();
}
emit q->accepted();
}
event->ignore();
return;
}
if (m_blinkEnabled)
updateCursorBlinking();
if (m_echoMode == QQuickTextInput::PasswordEchoOnEdit
&& !m_passwordEchoEditing
&& !m_readOnly
&& !event->text().isEmpty()
&& !(event->modifiers() & Qt::ControlModifier)) {
// Clear the edit and reset to normal echo mode while editing; the
// echo mode switches back when the edit loses focus
// ### resets current content. dubious code; you can
// navigate with keys up, down, back, and select(?), but if you press
// "left" or "right" it clears?
updatePasswordEchoEditing(true);
clear();
}
bool unknown = false;
#if QT_CONFIG(shortcut)
bool visual = cursorMoveStyle() == Qt::VisualMoveStyle;
#endif
if (false) {
}
#if QT_CONFIG(shortcut)
else if (event == QKeySequence::Undo) {
q->undo();
}
else if (event == QKeySequence::Redo) {
q->redo();
}
else if (event == QKeySequence::SelectAll) {
selectAll();
}
#if QT_CONFIG(clipboard)
else if (event == QKeySequence::Copy) {
copy();
}
else if (event == QKeySequence::Paste) {
if (!m_readOnly) {
QClipboard::Mode mode = QClipboard::Clipboard;
paste(mode);
}
}
else if (event == QKeySequence::Cut) {
q->cut();
}
else if (event == QKeySequence::DeleteEndOfLine) {
if (!m_readOnly)
deleteEndOfLine();
}
#endif // clipboard
else if (event == QKeySequence::MoveToStartOfLine || event == QKeySequence::MoveToStartOfBlock) {
home(0);
}
else if (event == QKeySequence::MoveToEndOfLine || event == QKeySequence::MoveToEndOfBlock) {
end(0);
}
else if (event == QKeySequence::SelectStartOfLine || event == QKeySequence::SelectStartOfBlock) {
home(1);
}
else if (event == QKeySequence::SelectEndOfLine || event == QKeySequence::SelectEndOfBlock) {
end(1);
}
else if (event == QKeySequence::MoveToNextChar) {
if (hasSelectedText()) {
moveCursor(selectionEnd(), false);
} else {
cursorForward(0, visual ? 1 : (layoutDirection() == Qt::LeftToRight ? 1 : -1));
}
}
else if (event == QKeySequence::SelectNextChar) {
cursorForward(1, visual ? 1 : (layoutDirection() == Qt::LeftToRight ? 1 : -1));
}
else if (event == QKeySequence::MoveToPreviousChar) {
if (hasSelectedText()) {
moveCursor(selectionStart(), false);
} else {
cursorForward(0, visual ? -1 : (layoutDirection() == Qt::LeftToRight ? -1 : 1));
}
}
else if (event == QKeySequence::SelectPreviousChar) {
cursorForward(1, visual ? -1 : (layoutDirection() == Qt::LeftToRight ? -1 : 1));
}
else if (event == QKeySequence::MoveToNextWord) {
if (m_echoMode == QQuickTextInput::Normal)
layoutDirection() == Qt::LeftToRight ? cursorWordForward(0) : cursorWordBackward(0);
else
layoutDirection() == Qt::LeftToRight ? end(0) : home(0);
}
else if (event == QKeySequence::MoveToPreviousWord) {
if (m_echoMode == QQuickTextInput::Normal)
layoutDirection() == Qt::LeftToRight ? cursorWordBackward(0) : cursorWordForward(0);
else if (!m_readOnly) {
layoutDirection() == Qt::LeftToRight ? home(0) : end(0);
}
}
else if (event == QKeySequence::SelectNextWord) {
if (m_echoMode == QQuickTextInput::Normal)
layoutDirection() == Qt::LeftToRight ? cursorWordForward(1) : cursorWordBackward(1);
else
layoutDirection() == Qt::LeftToRight ? end(1) : home(1);
}
else if (event == QKeySequence::SelectPreviousWord) {
if (m_echoMode == QQuickTextInput::Normal)
layoutDirection() == Qt::LeftToRight ? cursorWordBackward(1) : cursorWordForward(1);
else
layoutDirection() == Qt::LeftToRight ? home(1) : end(1);
}
else if (event == QKeySequence::Delete) {
if (!m_readOnly)
del();
}
else if (event == QKeySequence::DeleteEndOfWord) {
if (!m_readOnly)
deleteEndOfWord();
}
else if (event == QKeySequence::DeleteStartOfWord) {
if (!m_readOnly)
deleteStartOfWord();
} else if (event == QKeySequence::DeleteCompleteLine) {
if (!m_readOnly) {
selectAll();
#if QT_CONFIG(clipboard)
copy();
#endif
del();
}
}
#endif // shortcut
else {
bool handled = false;
if (event->modifiers() & Qt::ControlModifier) {
switch (event->key()) {
case Qt::Key_Backspace:
if (!m_readOnly)
deleteStartOfWord();
break;
default:
if (!handled)
unknown = true;
}
} else { // ### check for *no* modifier
switch (event->key()) {
case Qt::Key_Backspace:
if (!m_readOnly) {
backspace();
}
break;
default:
if (!handled)
unknown = true;
}
}
}
if (event->key() == Qt::Key_Direction_L || event->key() == Qt::Key_Direction_R) {
setLayoutDirection((event->key() == Qt::Key_Direction_L) ? Qt::LeftToRight : Qt::RightToLeft);
unknown = false;
}
if (unknown && !m_readOnly) {
if (m_inputControl->isAcceptableInput(event)) {
if (overwriteMode
// no need to call del() if we have a selection, insert
// does it already
&& !hasSelectedText()
&& !(m_cursor == q_func()->text().length())) {
del();
}
insert(event->text());
event->accept();
return;
}
}
if (unknown)
event->ignore();
else
event->accept();
}
/*!
\internal
Deletes the portion of the word before the current cursor position.
*/
void QQuickTextInputPrivate::deleteStartOfWord()
{
int priorState = m_undoState;
Command cmd(SetSelection, m_cursor, 0, m_selstart, m_selend);
separate();
cursorWordBackward(true);
addCommand(cmd);
removeSelectedText();
finishChange(priorState);
}
/*!
\internal
Deletes the portion of the word after the current cursor position.
*/
void QQuickTextInputPrivate::deleteEndOfWord()
{
int priorState = m_undoState;
Command cmd(SetSelection, m_cursor, 0, m_selstart, m_selend);
separate();
cursorWordForward(true);
// moveCursor (sometimes) calls separate() so we need to add the command after that so the
// cursor position and selection are restored in the same undo operation as the remove.
addCommand(cmd);
removeSelectedText();
finishChange(priorState);
}
/*!
\internal
Deletes all text from the cursor position to the end of the line.
*/
void QQuickTextInputPrivate::deleteEndOfLine()
{
int priorState = m_undoState;
Command cmd(SetSelection, m_cursor, 0, m_selstart, m_selend);
separate();
setSelection(m_cursor, end());
addCommand(cmd);
removeSelectedText();
finishChange(priorState);
}
/*!
\qmlmethod QtQuick::TextInput::ensureVisible(int position)
\since 5.4
Scrolls the contents of the text input so that the specified character
\a position is visible inside the boundaries of the text input.
\sa autoScroll
*/
void QQuickTextInput::ensureVisible(int position)
{
Q_D(QQuickTextInput);
d->ensureVisible(position);
updateCursorRectangle(false);
}
/*!
\qmlmethod QtQuick::TextInput::clear()
\since 5.7
Clears the contents of the text input
and resets partial text input from an input method.
Use this method instead of setting the \l text property to an empty string.
\sa QInputMethod::reset()
*/
void QQuickTextInput::clear()
{
Q_D(QQuickTextInput);
d->resetInputMethod();
d->clear();
}
/*!
\since 5.6
\qmlproperty real QtQuick::TextInput::padding
\qmlproperty real QtQuick::TextInput::topPadding
\qmlproperty real QtQuick::TextInput::leftPadding
\qmlproperty real QtQuick::TextInput::bottomPadding
\qmlproperty real QtQuick::TextInput::rightPadding
These properties hold the padding around the content. This space is reserved
in addition to the contentWidth and contentHeight.
The individual padding properties assume the value of the \c padding
property unless they are set explicitly. For example, if \c padding is
set to \c 4 and \c leftPadding to \c 8, \c 8 will be used as the left
padding.
\note If an explicit width or height is given to a TextInput, care must be
taken to ensure it is large enough to accommodate the relevant padding
values. For example: if \c topPadding and \c bottomPadding are set to
\c 10, but the height of the TextInput is only set to \c 20, the text will
not have enough vertical space in which to be rendered, and will appear
clipped.
*/
qreal QQuickTextInput::padding() const
{
Q_D(const QQuickTextInput);
return d->padding();
}
void QQuickTextInput::setPadding(qreal padding)
{
Q_D(QQuickTextInput);
if (qFuzzyCompare(d->padding(), padding))
return;
d->extra.value().padding = padding;
d->updateLayout();
emit paddingChanged();
if (!d->extra.isAllocated() || !d->extra->explicitTopPadding)
emit topPaddingChanged();
if (!d->extra.isAllocated() || !d->extra->explicitLeftPadding)
emit leftPaddingChanged();
if (!d->extra.isAllocated() || !d->extra->explicitRightPadding)
emit rightPaddingChanged();
if (!d->extra.isAllocated() || !d->extra->explicitBottomPadding)
emit bottomPaddingChanged();
}
void QQuickTextInput::resetPadding()
{
setPadding(0);
}
qreal QQuickTextInput::topPadding() const
{
Q_D(const QQuickTextInput);
if (d->extra.isAllocated() && d->extra->explicitTopPadding)
return d->extra->topPadding;
return d->padding();
}
void QQuickTextInput::setTopPadding(qreal padding)
{
Q_D(QQuickTextInput);
d->setTopPadding(padding);
}
void QQuickTextInput::resetTopPadding()
{
Q_D(QQuickTextInput);
d->setTopPadding(0, true);
}
qreal QQuickTextInput::leftPadding() const
{
Q_D(const QQuickTextInput);
if (d->extra.isAllocated() && d->extra->explicitLeftPadding)
return d->extra->leftPadding;
return d->padding();
}
void QQuickTextInput::setLeftPadding(qreal padding)
{
Q_D(QQuickTextInput);
d->setLeftPadding(padding);
}
void QQuickTextInput::resetLeftPadding()
{
Q_D(QQuickTextInput);
d->setLeftPadding(0, true);
}
qreal QQuickTextInput::rightPadding() const
{
Q_D(const QQuickTextInput);
if (d->extra.isAllocated() && d->extra->explicitRightPadding)
return d->extra->rightPadding;
return d->padding();
}
void QQuickTextInput::setRightPadding(qreal padding)
{
Q_D(QQuickTextInput);
d->setRightPadding(padding);
}
void QQuickTextInput::resetRightPadding()
{
Q_D(QQuickTextInput);
d->setRightPadding(0, true);
}
qreal QQuickTextInput::bottomPadding() const
{
Q_D(const QQuickTextInput);
if (d->extra.isAllocated() && d->extra->explicitBottomPadding)
return d->extra->bottomPadding;
return d->padding();
}
void QQuickTextInput::setBottomPadding(qreal padding)
{
Q_D(QQuickTextInput);
d->setBottomPadding(padding);
}
void QQuickTextInput::resetBottomPadding()
{
Q_D(QQuickTextInput);
d->setBottomPadding(0, true);
}
QT_END_NAMESPACE
#include "moc_qquicktextinput_p.cpp"