35 , mNativeZoomOut( zoomOut )
57 if ( !( e->buttons() & Qt::LeftButton ) )
60 setZoomMode( e->modifiers().testFlag( Qt::AltModifier ) ^
mNativeZoomOut );
67 QColor color( Qt::blue );
84 if ( e->button() != Qt::LeftButton )
93 if ( e->button() != Qt::LeftButton )
96 setZoomMode( e->modifiers().testFlag( Qt::AltModifier ) ^
mNativeZoomOut );
125 const QSize &zoomRectSize =
mZoomRect.size();
127 const QSize &canvasSize = mapSettings.
outputSize();
128 const double sfx =
static_cast<double>( zoomRectSize.width() ) / canvasSize.width();
129 const double sfy =
static_cast<double>( zoomRectSize.height() ) / canvasSize.height();
130 const double sf = std::max( sfx, sfy );
149void QgsMapToolZoom::setZoomMode(
bool zoomOut,
bool force )
151 if ( !force && zoomOut ==
mZoomOut )
160 if ( e->key() == Qt::Key_Alt )
171 if ( e->key() == Qt::Key_Alt )
Extends QApplication to provide access to QGIS specific resources such as theme paths,...
Map canvas is a class for displaying all GIS data types on a canvas.
A QgsMapMouseEvent is the result of a user interaction with the mouse on a QgsMapCanvas.
The QgsMapSettings class contains configuration for rendering of the map.
QSize outputSize() const
Returns the size of the resulting map image, in pixels.
Perform transforms between map coordinates and device coordinates.
QgsPointXY toMapCoordinates(int x, int y) const
Transforms device coordinates to map (world) coordinates.
A class to represent a 2D point.
A class for drawing transient features (e.g.
void setColor(const QColor &color)
Sets the color for the rubberband.
void setToCanvasRectangle(QRect rect)
Sets this rubber band to a map canvas rectangle.
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into c