void QgsLayoutViewToolZoom::layoutPressEvent( QgsLayoutViewMouseEvent *event )
{
if ( event->button() != Qt::LeftButton )
{
event->ignore();
return;
}
mMousePressStartPos = event->pos();
if ( event->modifiers() & Qt::AltModifier )
{
//zoom out action, so zoom out and recenter on clicked point
double scaleFactor = 2;
//get current visible part of scene
QRect viewportRect( 0, 0, view()->viewport()->width(), view()->viewport()->height() );
QgsRectangle visibleRect = QgsRectangle( view()->mapToScene( viewportRect ).boundingRect() );
visibleRect.scale( scaleFactor, event->layoutPoint().x(), event->layoutPoint().y() );
QRectF boundsRect = visibleRect.toRectF();
//zoom view to fit desired bounds
view()->fitInView( boundsRect, Qt::KeepAspectRatio );
view()->emitZoomLevelChanged();
view()->updateRulers();
}
else
{
//zoom in action
startMarqueeZoom( event->layoutPoint() );
}
}
void QgsComposerView::mousePressEvent( QMouseEvent* e )
{
if ( !composition() )
{
return;
}
QPointF scenePoint = mapToScene( e->pos() );
QPointF snappedScenePoint = composition()->snapPointToGrid( scenePoint );
mMousePressStartPos = e->pos();
//lock/unlock position of item with right click
if ( e->button() == Qt::RightButton )
{
QgsComposerItem* selectedItem = composition()->composerItemAt( scenePoint );
if ( selectedItem )
{
bool lock = selectedItem->positionLock() ? false : true;
selectedItem->setPositionLock( lock );
selectedItem->update();
}
return;
}
else if ( e->button() == Qt::MidButton )
{
//pan composer with middle button
mPanning = true;
mMouseLastXY = e->pos();
if ( composition() )
{
//lock cursor to closed hand cursor
composition()->setPreventCursorChange( true );
}
viewport()->setCursor( Qt::ClosedHandCursor );
return;
}
switch ( mCurrentTool )
{
//select/deselect items and pass mouse event further
case Select:
{
//check if we are clicking on a selection handle
if ( composition()->selectionHandles()->isVisible() )
{
//selection handles are being shown, get mouse action for current cursor position
QgsComposerMouseHandles::MouseAction mouseAction = composition()->selectionHandles()->mouseActionForScenePos( scenePoint );
if ( mouseAction != QgsComposerMouseHandles::MoveItem && mouseAction != QgsComposerMouseHandles::NoAction && mouseAction != QgsComposerMouseHandles::SelectItem )
{
//mouse is over a resize handle, so propagate event onward
QGraphicsView::mousePressEvent( e );
return;
}
}
QgsComposerItem* selectedItem = 0;
QgsComposerItem* previousSelectedItem = 0;
if ( e->modifiers() & Qt::ControlModifier )
{
//CTRL modifier, so we are trying to select the next item below the current one
//first, find currently selected item
QList<QgsComposerItem*> selectedItems = composition()->selectedComposerItems();
if ( selectedItems.size() > 0 )
{
previousSelectedItem = selectedItems.at( 0 );
}
}
if ( previousSelectedItem )
{
//select highest item just below previously selected item at position of event
selectedItem = composition()->composerItemAt( scenePoint, previousSelectedItem );
//if we didn't find a lower item we'll use the top-most as fall-back
//this duplicates mapinfo/illustrator/etc behaviour where ctrl-clicks are "cyclic"
if ( !selectedItem )
{
selectedItem = composition()->composerItemAt( scenePoint );
}
}
else
{
//select topmost item at position of event
selectedItem = composition()->composerItemAt( scenePoint );
}
if ( !selectedItem )
{
//not clicking over an item, so start marquee selection
startMarqueeSelect( scenePoint );
break;
}
if (( !selectedItem->selected() ) && //keep selection if an already selected item pressed
!( e->modifiers() & Qt::ShiftModifier ) ) //keep selection if shift key pressed
{
composition()->clearSelection();
}
if (( e->modifiers() & Qt::ShiftModifier ) && ( selectedItem->selected() ) )
{
//SHIFT-clicking a selected item deselects it
selectedItem->setSelected( false );
//Check if we have any remaining selected items, and if so, update the item panel
QList<QgsComposerItem*> selectedItems = composition()->selectedComposerItems();
if ( selectedItems.size() > 0 )
{
emit selectedItemChanged( selectedItems.at( 0 ) );
}
}
else
{
selectedItem->setSelected( true );
QGraphicsView::mousePressEvent( e );
emit selectedItemChanged( selectedItem );
}
break;
}
case Zoom:
{
if ( !( e->modifiers() & Qt::ShiftModifier ) )
{
//zoom in action
startMarqueeZoom( scenePoint );
}
else
{
//zoom out action, so zoom out and recenter on clicked point
double scaleFactor = 2;
//get current visible part of scene
QRect viewportRect( 0, 0, viewport()->width(), viewport()->height() );
QgsRectangle visibleRect = QgsRectangle( mapToScene( viewportRect ).boundingRect() );
//transform the mouse pos to scene coordinates
QPointF scenePoint = mapToScene( e->pos() );
visibleRect.scale( scaleFactor, scenePoint.x(), scenePoint.y() );
QRectF boundsRect = visibleRect.toRectF();
//zoom view to fit desired bounds
fitInView( boundsRect, Qt::KeepAspectRatio );
}
break;
}
case Pan:
{
//pan action
mPanning = true;
mMouseLastXY = e->pos();
viewport()->setCursor( Qt::ClosedHandCursor );
break;
}
case MoveItemContent:
{
//get a list of items at clicked position
QList<QGraphicsItem *> itemsAtCursorPos = items( e->pos() );
if ( itemsAtCursorPos.size() == 0 )
{
//no items at clicked position
return;
}
//find highest QgsComposerItem at clicked position
//(other graphics items may be higher, eg selection handles)
QList<QGraphicsItem*>::iterator itemIter = itemsAtCursorPos.begin();
for ( ; itemIter != itemsAtCursorPos.end(); ++itemIter )
{
QgsComposerItem* item = dynamic_cast<QgsComposerItem *>(( *itemIter ) );
if ( item )
{
//we've found the highest QgsComposerItem
mMoveContentStartPos = scenePoint;
mMoveContentItem = item;
break;
}
}
//no QgsComposerItem at clicked position
return;
}
case AddArrow:
{
mRubberBandStartPos = QPointF( snappedScenePoint.x(), snappedScenePoint.y() );
mRubberBandLineItem = new QGraphicsLineItem( snappedScenePoint.x(), snappedScenePoint.y(), snappedScenePoint.x(), snappedScenePoint.y() );
mRubberBandLineItem->setZValue( 1000 );
scene()->addItem( mRubberBandLineItem );
scene()->update();
break;
}
//create rubber band for map and ellipse items
case AddMap:
case AddRectangle:
case AddTriangle:
case AddEllipse:
case AddHtml:
{
QTransform t;
mRubberBandItem = new QGraphicsRectItem( 0, 0, 0, 0 );
mRubberBandStartPos = QPointF( snappedScenePoint.x(), snappedScenePoint.y() );
t.translate( snappedScenePoint.x(), snappedScenePoint.y() );
mRubberBandItem->setTransform( t );
mRubberBandItem->setZValue( 1000 );
scene()->addItem( mRubberBandItem );
scene()->update();
}
break;
case AddLabel:
if ( composition() )
{
QgsComposerLabel* newLabelItem = new QgsComposerLabel( composition() );
newLabelItem->setText( tr( "QGIS" ) );
newLabelItem->adjustSizeToText();
newLabelItem->setSceneRect( QRectF( snappedScenePoint.x(), snappedScenePoint.y(), newLabelItem->rect().width(), newLabelItem->rect().height() ) );
composition()->addComposerLabel( newLabelItem );
composition()->clearSelection();
newLabelItem->setSelected( true );
emit selectedItemChanged( newLabelItem );
emit actionFinished();
composition()->pushAddRemoveCommand( newLabelItem, tr( "Label added" ) );
}
break;
case AddScalebar:
if ( composition() )
{
QgsComposerScaleBar* newScaleBar = new QgsComposerScaleBar( composition() );
newScaleBar->setSceneRect( QRectF( snappedScenePoint.x(), snappedScenePoint.y(), 20, 20 ) );
composition()->addComposerScaleBar( newScaleBar );
QList<const QgsComposerMap*> mapItemList = composition()->composerMapItems();
if ( mapItemList.size() > 0 )
{
newScaleBar->setComposerMap( mapItemList.at( 0 ) );
}
newScaleBar->applyDefaultSize(); //4 segments, 1/5 of composer map width
composition()->clearSelection();
newScaleBar->setSelected( true );
emit selectedItemChanged( newScaleBar );
emit actionFinished();
composition()->pushAddRemoveCommand( newScaleBar, tr( "Scale bar added" ) );
}
break;
case AddLegend:
{
if ( composition() )
{
QgsComposerLegend* newLegend = new QgsComposerLegend( composition() );
newLegend->setSceneRect( QRectF( snappedScenePoint.x(), snappedScenePoint.y(), newLegend->rect().width(), newLegend->rect().height() ) );
composition()->addComposerLegend( newLegend );
newLegend->updateLegend();
composition()->clearSelection();
newLegend->setSelected( true );
emit selectedItemChanged( newLegend );
emit actionFinished();
composition()->pushAddRemoveCommand( newLegend, tr( "Legend added" ) );
}
break;
}
case AddPicture:
if ( composition() )
{
QgsComposerPicture* newPicture = new QgsComposerPicture( composition() );
newPicture->setSceneRect( QRectF( snappedScenePoint.x(), snappedScenePoint.y(), 30, 30 ) );
composition()->addComposerPicture( newPicture );
composition()->clearSelection();
newPicture->setSelected( true );
emit selectedItemChanged( newPicture );
emit actionFinished();
composition()->pushAddRemoveCommand( newPicture, tr( "Picture added" ) );
}
break;
case AddTable:
if ( composition() )
{
QgsComposerAttributeTable* newTable = new QgsComposerAttributeTable( composition() );
newTable->setSceneRect( QRectF( snappedScenePoint.x(), snappedScenePoint.y(), 50, 50 ) );
composition()->addComposerTable( newTable );
composition()->clearSelection();
newTable->setSelected( true );
emit selectedItemChanged( newTable );
emit actionFinished();
composition()->pushAddRemoveCommand( newTable, tr( "Table added" ) );
}
break;
default:
break;
}
}