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src
gui
qgsmaptoolzoom.h
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/***************************************************************************
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qgsmaptoolzoom.h - map tool for zooming
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----------------------
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begin : January 2006
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copyright : (C) 2006 by Martin Dobias
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email : wonder.sk at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSMAPTOOLZOOM_H
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#define QGSMAPTOOLZOOM_H
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#include "
qgsmaptool.h
"
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#include <QRect>
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class
QgsRubberBand
;
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class
GUI_EXPORT
QgsMapToolZoom
:
public
QgsMapTool
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{
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public
:
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QgsMapToolZoom
(
QgsMapCanvas
* canvas,
bool
zoomOut );
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~
QgsMapToolZoom
();
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virtual
void
canvasMoveEvent
( QMouseEvent * e );
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virtual
void
canvasPressEvent
( QMouseEvent * e );
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virtual
void
canvasReleaseEvent
( QMouseEvent * e );
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virtual
bool
isTransient
() {
return
true
; }
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virtual
void
deactivate
();
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protected
:
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QRect
mZoomRect
;
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bool
mZoomOut
;
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bool
mDragging
;
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QgsRubberBand
*
mRubberBand
;
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};
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#endif
QgsMapToolZoom::isTransient
virtual bool isTransient()
Check whether this MapTool performs a zoom or pan operation.
Definition:
qgsmaptoolzoom.h:45
QgsMapTool::canvasMoveEvent
virtual void canvasMoveEvent(QMouseEvent *e)
Mouse move event for overriding. Default implementation does nothing.
Definition:
qgsmaptool.cpp:134
QgsMapTool::canvasPressEvent
virtual void canvasPressEvent(QMouseEvent *e)
Mouse press event for overriding. Default implementation does nothing.
Definition:
qgsmaptool.cpp:144
QgsMapCanvas
Map canvas is a class for displaying all GIS data types on a canvas.
Definition:
qgsmapcanvas.h:104
QgsMapToolZoom::mZoomOut
bool mZoomOut
indicates whether we're zooming in or out
Definition:
qgsmaptoolzoom.h:54
QgsRubberBand
A class for drawing transient features (e.g.
Definition:
qgsrubberband.h:32
QgsMapTool::deactivate
virtual void deactivate()
called when map tool is being deactivated
Definition:
qgsmaptool.cpp:91
qgsmaptool.h
QgsMapTool
Abstract base class for all map tools.
Definition:
qgsmaptool.h:48
QgsMapToolZoom::mZoomRect
QRect mZoomRect
stores actual zoom rect
Definition:
qgsmaptoolzoom.h:51
QgsMapToolZoom
A map tool for zooming into the map.
Definition:
qgsmaptoolzoom.h:28
QgsMapTool::canvasReleaseEvent
virtual void canvasReleaseEvent(QMouseEvent *e)
Mouse release event for overriding. Default implementation does nothing.
Definition:
qgsmaptool.cpp:149
QgsMapToolZoom::mRubberBand
QgsRubberBand * mRubberBand
Definition:
qgsmaptoolzoom.h:59
QgsMapToolZoom::mDragging
bool mDragging
Flag to indicate a map canvas drag operation is taking place.
Definition:
qgsmaptoolzoom.h:57
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