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| |
| #ifndef QQUICKTEXTUTIL_P_H |
| #define QQUICKTEXTUTIL_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtQml/qqml.h> |
| #include <QtQml/qqmlincubator.h> |
| #include <QtQuick/qquickitem.h> |
| #include <QtQuick/qquickwindow.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QQuickTextUtil : public QObject // For the benefit of translations. |
| { |
| Q_OBJECT |
| public: |
| template <typename Private> static void setCursorDelegate(Private *d, QQmlComponent *delegate); |
| template <typename Private> static void createCursor(Private *d); |
| |
| template <typename T> static typename T::RenderType textRenderType(); |
| |
| static qreal alignedX(qreal textWidth, qreal itemWidth, int alignment); |
| static qreal alignedY(qreal textHeight, qreal itemHeight, int alignment); |
| |
| private: |
| static QQuickItem *createCursor( |
| QQmlComponent *component, |
| QQuickItem *parent, |
| const QRectF &cursorRectangle, |
| const char *className); |
| |
| }; |
| |
| template <typename Private> |
| void QQuickTextUtil::setCursorDelegate(Private *d, QQmlComponent *delegate) |
| { |
| if (d->cursorComponent == delegate) |
| return; |
| |
| typename Private::Public *parent = d->q_func(); |
| |
| if (d->cursorComponent) { |
| disconnect(d->cursorComponent, SIGNAL(statusChanged(QQmlComponent::Status)), |
| parent, SLOT(createCursor())); |
| } |
| |
| delete d->cursorItem; |
| d->cursorItem = 0; |
| d->cursorPending = true; |
| |
| d->cursorComponent = delegate; |
| |
| if (parent->isCursorVisible() && parent->isComponentComplete()) |
| createCursor(d); |
| |
| Q_EMIT parent->cursorDelegateChanged(); |
| } |
| |
| template <typename Private> |
| void QQuickTextUtil::createCursor(Private *d) |
| { |
| if (!d->cursorPending) |
| return; |
| |
| d->cursorPending = false; |
| |
| typename Private::Public *parent = d->q_func(); |
| if (d->cursorComponent) { |
| d->cursorItem = createCursor( |
| d->cursorComponent, |
| parent, |
| parent->cursorRectangle(), |
| Private::Public::staticMetaObject.className()); |
| } |
| |
| d->setNativeCursorEnabled(!d->cursorItem); |
| d->updateType = Private::UpdatePaintNode; |
| parent->update(); |
| } |
| |
| template <typename T> |
| typename T::RenderType QQuickTextUtil::textRenderType() |
| { |
| switch (QQuickWindow::textRenderType()) { |
| case QQuickWindow::QtTextRendering: |
| return T::QtRendering; |
| case QQuickWindow::NativeTextRendering: |
| return T::NativeRendering; |
| } |
| |
| Q_UNREACHABLE(); |
| return T::QtRendering; |
| } |
| |
| QT_END_NAMESPACE |
| |
| #endif |