diff options
Diffstat (limited to 'tools/designer/src/lib/shared/previewmanager.cpp')
| -rw-r--r-- | tools/designer/src/lib/shared/previewmanager.cpp | 171 |
1 files changed, 148 insertions, 23 deletions
diff --git a/tools/designer/src/lib/shared/previewmanager.cpp b/tools/designer/src/lib/shared/previewmanager.cpp index 8ed1772ad7..ac1674195e 100644 --- a/tools/designer/src/lib/shared/previewmanager.cpp +++ b/tools/designer/src/lib/shared/previewmanager.cpp @@ -67,6 +67,7 @@ #include <QtGui/QAction> #include <QtGui/QActionGroup> #include <QtGui/QCursor> +#include <QtGui/QMatrix> #include <QtCore/QMap> #include <QtCore/QDebug> @@ -149,11 +150,16 @@ QGraphicsProxyWidget *DesignerZoomWidget::createProxyWidget(QGraphicsItem *paren return new DesignerZoomProxyWidget(parent, wFlags); } -// --------- Widget Preview skin: Forward the key events to the window +// PreviewDeviceSkin: Forwards the key events to the window and +// provides context menu with rotation options. Derived class +// can apply additional transformations to the skin. + class PreviewDeviceSkin : public DeviceSkin { Q_OBJECT public: + enum Direction { DirectionUp, DirectionLeft, DirectionRight }; + explicit PreviewDeviceSkin(const DeviceSkinParameters ¶meters, QWidget *parent); virtual void setPreview(QWidget *w); QSize screenSize() const { return m_screenSize; } @@ -164,15 +170,36 @@ private slots: void slotPopupMenu(); protected: - virtual void populateContextMenu(QMenu *m); + virtual void populateContextMenu(QMenu *) {} + +private slots: + void slotDirection(QAction *); + +protected: + // Fit the widget in case the orientation changes (transposing screensize) + virtual void fitWidget(const QSize &size); + // Calculate the complete transformation for the skin + // (base class implementation provides rotation). + virtual QMatrix skinTransform() const; private: const QSize m_screenSize; + Direction m_direction; + + QAction *m_directionUpAction; + QAction *m_directionLeftAction; + QAction *m_directionRightAction; + QAction *m_closeAction; }; PreviewDeviceSkin::PreviewDeviceSkin(const DeviceSkinParameters ¶meters, QWidget *parent) : - DeviceSkin(parameters, parent), - m_screenSize(parameters.screenSize()) + DeviceSkin(parameters, parent), + m_screenSize(parameters.screenSize()), + m_direction(DirectionUp), + m_directionUpAction(0), + m_directionLeftAction(0), + m_directionRightAction(0), + m_closeAction(0) { connect(this, SIGNAL(skinKeyPressEvent(int,QString,bool)), this, SLOT(slotSkinKeyPressEvent(int,QString,bool))); @@ -195,7 +222,6 @@ void PreviewDeviceSkin::slotSkinKeyPressEvent(int code, const QString& text, boo QKeyEvent e(QEvent::KeyPress,code,0,text,autorep); QApplication::sendEvent(focusWidget, &e); } - } void PreviewDeviceSkin::slotSkinKeyReleaseEvent(int code, const QString& text, bool autorep) @@ -206,16 +232,83 @@ void PreviewDeviceSkin::slotSkinKeyReleaseEvent(int code, const QString& text, b } } +// Create a checkable action with integer data and +// set it checked if it matches the currentState. +static inline QAction + *createCheckableActionIntData(const QString &label, + int actionValue, int currentState, + QActionGroup *ag, QObject *parent) +{ + QAction *a = new QAction(label, parent); + a->setData(actionValue); + a->setCheckable(true); + if (actionValue == currentState) + a->setChecked(true); + ag->addAction(a); + return a; +} + void PreviewDeviceSkin::slotPopupMenu() { QMenu menu(this); + // Create actions + if (!m_directionUpAction) { + QActionGroup *directionGroup = new QActionGroup(this); + connect(directionGroup, SIGNAL(triggered(QAction*)), this, SLOT(slotDirection(QAction*))); + directionGroup->setExclusive(true); + m_directionUpAction = createCheckableActionIntData(tr("&Portrait"), DirectionUp, m_direction, directionGroup, this); + m_directionLeftAction = createCheckableActionIntData(tr("Landscape (&CCW)"), DirectionLeft, m_direction, directionGroup, this); + m_directionRightAction = createCheckableActionIntData(tr("&Landscape (CW)"), DirectionRight, m_direction, directionGroup, this); + m_closeAction = new QAction(tr("&Close"), this); + connect(m_closeAction, SIGNAL(triggered()), parentWidget(), SLOT(close())); + } + menu.addAction(m_directionUpAction); + menu.addAction(m_directionLeftAction); + menu.addAction(m_directionRightAction); + menu.addSeparator(); populateContextMenu(&menu); + menu.addAction(m_closeAction); menu.exec(QCursor::pos()); } -void PreviewDeviceSkin::populateContextMenu(QMenu *menu) +void PreviewDeviceSkin::slotDirection(QAction *a) +{ + const Direction newDirection = static_cast<Direction>(a->data().toInt()); + if (m_direction == newDirection) + return; + const Qt::Orientation newOrientation = newDirection == DirectionUp ? Qt::Vertical : Qt::Horizontal; + const Qt::Orientation oldOrientation = m_direction == DirectionUp ? Qt::Vertical : Qt::Horizontal; + m_direction = newDirection; + QApplication::setOverrideCursor(Qt::WaitCursor); + if (oldOrientation != newOrientation) { + QSize size = screenSize(); + if (newOrientation == Qt::Horizontal) + size.transpose(); + fitWidget(size); + } + setTransform(skinTransform()); + QApplication::restoreOverrideCursor(); +} + +void PreviewDeviceSkin::fitWidget(const QSize &size) +{ + view()->setFixedSize(size); +} + +QMatrix PreviewDeviceSkin::skinTransform() const { - connect(menu->addAction(tr("&Close")), SIGNAL(triggered()), parentWidget(), SLOT(close())); + QMatrix newTransform; + switch (m_direction) { + case DirectionUp: + break; + case DirectionLeft: + newTransform.rotate(270.0); + break; + case DirectionRight: + newTransform.rotate(90.0); + break; + } + return newTransform; } // ------------ PreviewConfigurationPrivate @@ -257,16 +350,20 @@ signals: void zoomPercentChanged(int); protected: - virtual void populateContextMenu(QMenu *m); + virtual void populateContextMenu(QMenu *m); + virtual QMatrix skinTransform() const; + virtual void fitWidget(const QSize &size); private: ZoomMenu *m_zoomMenu; + QAction *m_zoomSubMenuAction; ZoomWidget *m_zoomWidget; }; ZoomablePreviewDeviceSkin::ZoomablePreviewDeviceSkin(const DeviceSkinParameters ¶meters, QWidget *parent) : PreviewDeviceSkin(parameters, parent), m_zoomMenu(new ZoomMenu(this)), + m_zoomSubMenuAction(0), m_zoomWidget(new DesignerZoomWidget) { connect(m_zoomMenu, SIGNAL(zoomChanged(int)), this, SLOT(setZoomPercent(int))); @@ -279,10 +376,20 @@ ZoomablePreviewDeviceSkin::ZoomablePreviewDeviceSkin(const DeviceSkinParameters setView(m_zoomWidget); } -void ZoomablePreviewDeviceSkin::setPreview(QWidget *formWidget) +static inline qreal zoomFactor(int percent) { - formWidget->setFixedSize(screenSize()); + return qreal(percent) / 100.0; +} + +static inline QSize scaleSize(int zoomPercent, const QSize &size) +{ + return zoomPercent == 100 ? size : (QSizeF(size) * zoomFactor(zoomPercent)).toSize(); +} + +void ZoomablePreviewDeviceSkin::setPreview(QWidget *formWidget) +{ m_zoomWidget->setWidget(formWidget); + m_zoomWidget->resize(scaleSize(zoomPercent(), screenSize())); } int ZoomablePreviewDeviceSkin::zoomPercent() const @@ -290,32 +397,50 @@ int ZoomablePreviewDeviceSkin::zoomPercent() const return m_zoomWidget->zoom(); } -void ZoomablePreviewDeviceSkin::setZoomPercent(int z) +void ZoomablePreviewDeviceSkin::setZoomPercent(int zp) { - if (z == zoomPercent()) + if (zp == zoomPercent()) return; // If not triggered by the menu itself: Update it - if (m_zoomMenu->zoom() != z) - m_zoomMenu->setZoom(z); + if (m_zoomMenu->zoom() != zp) + m_zoomMenu->setZoom(zp); - const QCursor oldCursor = cursor(); - QApplication::setOverrideCursor(Qt::WaitCursor); - // DeviceSkin has double, not qreal. - const double hundred = 100.0; - setZoom(static_cast<double>(z) / hundred); - m_zoomWidget->setZoom(z); + QApplication::setOverrideCursor(Qt::WaitCursor); + m_zoomWidget->setZoom(zp); + setTransform(skinTransform()); QApplication::restoreOverrideCursor(); } void ZoomablePreviewDeviceSkin::populateContextMenu(QMenu *menu) { - m_zoomMenu->addActions(menu); - menu->addSeparator(); - PreviewDeviceSkin::populateContextMenu(menu); + if (!m_zoomSubMenuAction) { + m_zoomSubMenuAction = new QAction(tr("&Zoom"), this); + QMenu *zoomSubMenu = new QMenu; + m_zoomSubMenuAction->setMenu(zoomSubMenu); + m_zoomMenu->addActions(zoomSubMenu); + } + menu->addAction(m_zoomSubMenuAction); menu->addSeparator(); } +QMatrix ZoomablePreviewDeviceSkin::skinTransform() const +{ + // Complete transformation consisting of base class rotation and zoom. + QMatrix rc = PreviewDeviceSkin::skinTransform(); + const int zp = zoomPercent(); + if (zp != 100) { + const qreal factor = zoomFactor(zp); + rc.scale(factor, factor); + } + return rc; +} + +void ZoomablePreviewDeviceSkin::fitWidget(const QSize &size) +{ + m_zoomWidget->resize(scaleSize(zoomPercent(), size)); +} + // ------------- PreviewConfiguration static const char *styleKey = "Style"; |