| /**************************************************************************** |
| ** |
| ** Copyright (C) 2018 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Charts module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
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| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 or (at your option) any later version |
| ** approved by the KDE Free Qt Foundation. The licenses are as published by |
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include <private/editableaxislabel_p.h> |
| |
| #include <QtGui/qtextcursor.h> |
| #include <QtGui/qtextdocument.h> |
| |
| QT_CHARTS_BEGIN_NAMESPACE |
| |
| EditableAxisLabel::EditableAxisLabel(QGraphicsItem *parent) : |
| QGraphicsTextItem(parent) |
| { |
| |
| } |
| |
| void EditableAxisLabel::focusInEvent(QFocusEvent *event) |
| { |
| m_htmlBeforeEdit = toHtml(); |
| setTextWidth(-1); |
| setInitialEditValue(); |
| m_editing = true; |
| QGraphicsTextItem::focusInEvent(event); |
| } |
| |
| void EditableAxisLabel::focusOutEvent(QFocusEvent *event) |
| { |
| // perform the modifications before calling finishEditing |
| // because finishEditing emits signals that can trigger |
| // range change which might invalidate the current label |
| QGraphicsTextItem::focusOutEvent(event); |
| setTextInteractionFlags(Qt::NoTextInteraction); |
| m_editing = false; |
| |
| finishEditing(); |
| } |
| |
| bool EditableAxisLabel::sceneEvent(QEvent *event) |
| { |
| if (m_editable && event->type() == QEvent::GraphicsSceneMouseDoubleClick) { |
| setTextInteractionFlags(Qt::TextEditorInteraction); |
| |
| bool ret = QGraphicsTextItem::sceneEvent(event); |
| // QGraphicsTextItem::sceneevent needs to be processed before |
| // the focus and text selection |
| setFocus(Qt::MouseFocusReason); |
| QTextCursor cursor = textCursor(); |
| cursor.select(QTextCursor::Document); |
| setTextCursor(cursor); |
| return ret; |
| } |
| return QGraphicsTextItem::sceneEvent(event); |
| } |
| |
| void EditableAxisLabel::setEditable(bool editable) |
| { |
| m_editable = editable; |
| } |
| |
| void EditableAxisLabel::reloadBeforeEditContent() |
| { |
| resetBeforeEditValue(); |
| setHtml(m_htmlBeforeEdit); |
| } |
| |
| QRectF EditableAxisLabel::boundingRect() const |
| { |
| QRectF ret = QGraphicsTextItem::boundingRect(); |
| |
| // add 2px margin to allow the cursor to |
| // show up properly when editing |
| if (m_editing) |
| ret.setWidth(ret.width() + 2); |
| return ret; |
| } |
| |
| bool EditableAxisLabel::isEditEndingKeyPress(QKeyEvent *event) |
| { |
| if (event->text().length() >= 1) { |
| // finish editing with enter or ESC |
| if (event->key() == Qt::Key_Enter || |
| event->key() == Qt::Key_Return) { |
| clearFocus(); |
| return true; |
| } else if (event->key() == Qt::Key_Escape) { |
| document()->setHtml(m_htmlBeforeEdit); |
| clearFocus(); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| QT_CHARTS_END_NAMESPACE |
| |
| #include "moc_editableaxislabel_p.cpp" |