void PhotoView::setZoomFactor( qreal factor )
{
_zoomFactor = factor;
if ( qFuzzyCompare( _zoomFactor, 1.0 ) )
setZoomMode( NoZoom );
else
setZoomMode( UseZoomFactor );
}
void QgsMapToolZoom::canvasMoveEvent( QgsMapMouseEvent *e )
{
if ( !( e->buttons() & Qt::LeftButton ) )
return;
setZoomMode( e->modifiers().testFlag( Qt::AltModifier ) ^ mNativeZoomOut );
if ( !mDragging )
{
mDragging = true;
delete mRubberBand;
mRubberBand = new QgsRubberBand( mCanvas, QgsWkbTypes::PolygonGeometry );
QColor color( Qt::blue );
color.setAlpha( 63 );
mRubberBand->setColor( color );
mZoomRect.setTopLeft( e->pos() );
}
mZoomRect.setBottomRight( e->pos() );
if ( mRubberBand )
{
mRubberBand->setToCanvasRectangle( mZoomRect );
mRubberBand->show();
}
}
void QgsMapToolZoom::keyPressEvent( QKeyEvent *e )
{
if ( e->key() == Qt::Key_Alt )
{
setZoomMode( !mNativeZoomOut );
}
}
int QPrintPreviewWidget::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
_id = QWidget::qt_metacall(_c, _id, _a);
if (_id < 0)
return _id;
if (_c == QMetaObject::InvokeMetaMethod) {
switch (_id) {
case 0: paintRequested((*reinterpret_cast< QPrinter*(*)>(_a[1]))); break;
case 1: previewChanged(); break;
case 2: print(); break;
case 3: zoomIn((*reinterpret_cast< qreal(*)>(_a[1]))); break;
case 4: zoomIn(); break;
case 5: zoomOut((*reinterpret_cast< qreal(*)>(_a[1]))); break;
case 6: zoomOut(); break;
case 7: setZoomFactor((*reinterpret_cast< qreal(*)>(_a[1]))); break;
case 8: setOrientation((*reinterpret_cast< QPrinter::Orientation(*)>(_a[1]))); break;
case 9: setViewMode((*reinterpret_cast< ViewMode(*)>(_a[1]))); break;
case 10: setZoomMode((*reinterpret_cast< ZoomMode(*)>(_a[1]))); break;
case 11: setCurrentPage((*reinterpret_cast< int(*)>(_a[1]))); break;
case 12: fitToWidth(); break;
case 13: fitInView(); break;
case 14: setLandscapeOrientation(); break;
case 15: setPortraitOrientation(); break;
case 16: setSinglePageViewMode(); break;
case 17: setFacingPagesViewMode(); break;
case 18: setAllPagesViewMode(); break;
case 19: updatePreview(); break;
case 20: d_func()->_q_fit(); break;
case 21: d_func()->_q_updateCurrentPage(); break;
}
_id -= 22;
}
return _id;
}
void PlotZoomer::loadSettings(QSettings &settings)
{
settings.beginGroup("zoom");
int zoomMode = settings.value("mode", int(PlotZoomer::ZoomBoth)).toInt();
setZoomMode(PlotZoomer::ZoomMode(zoomMode));
int zoomIndex = settings.value("index", -1).toInt();
int stackSize = settings.beginReadArray("stack");
QStack<QRectF> stack;
stack.resize(stackSize);
for (int i = 0; i < stackSize; ++i)
{
settings.setArrayIndex(i);
read(settings, stack[i]);
}
settings.endArray();
setZoomStack(stack, zoomIndex);
if (stackSize <= 1)
{
zoomToFit(true);
}
settings.endGroup();
}
void QgsMapToolZoom::keyReleaseEvent( QKeyEvent *e )
{
// key press events are not caught wile the mouse is pressed
// this is detected in map canvas move event
if ( e->key() == Qt::Key_Alt )
{
setZoomMode( mNativeZoomOut );
}
}
void PhotoView::setZoomMode()
{
QAction * action = qobject_cast<QAction *>( sender() );
if ( action )
{
int zoomMode = action->data().toInt();
setZoomMode( static_cast<ZoomMode>( zoomMode ) );
}
}
QgsMapToolZoom::QgsMapToolZoom( QgsMapCanvas *canvas, bool zoomOut )
: QgsMapTool( canvas )
, mZoomOut( zoomOut )
, mNativeZoomOut( zoomOut )
, mDragging( false )
, mZoomOutCursor( QgsApplication::getThemeCursor( QgsApplication::Cursor::ZoomOut ) )
, mZoomInCursor( QgsApplication::getThemeCursor( QgsApplication::Cursor::ZoomIn ) )
{
mToolName = tr( "Zoom" );
setZoomMode( mNativeZoomOut, true );
}
void QgsMapToolZoom::canvasReleaseEvent( QgsMapMouseEvent *e )
{
if ( e->button() != Qt::LeftButton )
return;
setZoomMode( e->modifiers().testFlag( Qt::AltModifier ) ^ mNativeZoomOut );
// We are not really dragging in this case. This is sometimes caused by
// a pen based computer reporting a press, move, and release, all the
// one point.
bool tooShort = ( mZoomRect.topLeft() - mZoomRect.bottomRight() ).manhattanLength() < mMinPixelZoom;
if ( !mDragging || tooShort )
{
mDragging = false;
delete mRubberBand;
mRubberBand = nullptr;
// change to zoom in/out by the default multiple
mCanvas->zoomWithCenter( e->x(), e->y(), !mZoomOut );
}
else
{
mDragging = false;
delete mRubberBand;
mRubberBand = nullptr;
// store the rectangle
mZoomRect.setRight( e->pos().x() );
mZoomRect.setBottom( e->pos().y() );
//account for bottom right -> top left dragging
mZoomRect = mZoomRect.normalized();
// set center and zoom
const QSize &zoomRectSize = mZoomRect.size();
const QgsMapSettings &mapSettings = mCanvas->mapSettings();
const QSize &canvasSize = mapSettings.outputSize();
double sfx = static_cast<double>( zoomRectSize.width() ) / canvasSize.width();
double sfy = static_cast<double>( zoomRectSize.height() ) / canvasSize.height();
double sf = std::max( sfx, sfy );
const QgsMapToPixel *m2p = mCanvas->getCoordinateTransform();
QgsPointXY c = m2p->toMapCoordinates( mZoomRect.center() );
mCanvas->zoomByFactor( mZoomOut ? 1.0 / sf : sf, &c );
mCanvas->refresh();
}
}
PhotoView::Actions::Actions( PhotoView * photoView ):
_photoView( photoView )
{
//
// Zoom
//
noZoom = createAction( tr( "No Zoom (100% / &1:1)" ), Qt::Key_1, NoZoom );
CONNECT_ACTION( noZoom, photoView, setZoomMode() );
zoomIn = createAction( tr( "Zoom In (Enlarge)" ), Qt::Key_Plus );
CONNECT_ACTION( zoomIn, photoView, zoomIn() );
zoomOut = createAction( tr( "Zoom Out (Shrink)" ), Qt::Key_Minus );
CONNECT_ACTION( zoomOut, photoView, zoomOut() );
zoomFitImage = createAction( tr( "Zoom to &Fit Window" ), Qt::Key_F, ZoomFitImage );
addShortcut( zoomFitImage, Qt::Key_M );
CONNECT_ACTION( zoomFitImage, photoView, setZoomMode() );
zoomFitWidth = createAction( tr( "Zoom to Fit Window &Width" ), Qt::Key_W, ZoomFitWidth );
CONNECT_ACTION( zoomFitWidth, photoView, setZoomMode() );
zoomFitHeight = createAction( tr( "Zoom to Fit Window &Height" ), Qt::Key_H, ZoomFitHeight );
CONNECT_ACTION( zoomFitHeight, photoView, setZoomMode() );
zoomFitBest = createAction( tr( "&Best Zoom for Window Width or Height" ), Qt::Key_B, ZoomFitBest );
CONNECT_ACTION( zoomFitBest, photoView, setZoomMode() );
//
// Navigation
//
loadNext = createAction( tr( "Load &Next Image" ), Qt::Key_Space, NavigateNext );
addShortcut( loadNext, Qt::Key_PageDown );
CONNECT_ACTION( loadNext, photoView, navigate() );
loadPrevious = createAction( tr( "Load &Previous Image" ), Qt::Key_Backspace, NavigatePrevious );
addShortcut( loadPrevious, Qt::Key_PageUp );
CONNECT_ACTION( loadPrevious, photoView, navigate() );
loadFirst = createAction( tr( "Load &First Image" ), Qt::Key_Home, NavigateFirst );
CONNECT_ACTION( loadFirst, photoView, navigate() );
loadLast = createAction( tr( "Load &Last Image" ), Qt::Key_End, NavigateLast );
CONNECT_ACTION( loadLast, photoView, navigate() );
//
// Misc
//
forceReload = createAction( tr( "Force &Reload" ), Qt::Key_F5 );
CONNECT_ACTION( forceReload, photoView, forceReload() );
toggleFullscreen = createAction( tr( "Toggle F&ullscreen" ), Qt::Key_Return );
CONNECT_ACTION( toggleFullscreen, photoView, toggleFullscreen() );
quit = createAction( tr ( "&Quit" ), Qt::Key_Q );
addShortcut( quit, Qt::Key_Escape );
CONNECT_ACTION( quit, qApp, quit() );
}
