Added setButton() and button() functions to QgsMapTool so that also button

wonder · wonder · commit 4b801ceb9667 · 2007-06-17T22:14:41.000Z
associated with a map tool can be set as checked when the tool is active. git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@7035 c8812cc2-4d05-0410-92ff-de0c093fc19c
diff --git a/src/gui/qgsmaptool.cpp b/src/gui/qgsmaptool.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
-    qgsmaptool.h  -  base class for map canvas tools
+    qgsmaptool.cpp  -  base class for map canvas tools
     ----------------------
     begin                : January 2006
     copyright            : (C) 2006 by Martin Dobias
@@ -20,9 +20,10 @@
 #include "qgsmaprender.h"
 #include "qgsmaptopixel.h"
 #include <QAction>
+#include <QAbstractButton>
 
 QgsMapTool::QgsMapTool(QgsMapCanvas* canvas)
-  : QObject(canvas), mCanvas(canvas), mCursor(Qt::CrossCursor), mAction(NULL)
+  : QObject(canvas), mCanvas(canvas), mCursor(Qt::CrossCursor), mAction(NULL), mButton(NULL)
 {
 }
 
@@ -70,9 +71,11 @@ QPoint QgsMapTool::toCanvasCoords(const QgsPoint& point)
 
 void QgsMapTool::activate()
 {
-  // make action active
+  // make action and/or button active
   if (mAction)
     mAction->setChecked(true);
+  if (mButton)
+    mButton->setChecked(true);
   
   // set cursor (map tools usually set it in constructor)
   mCanvas->setCursor(mCursor);
@@ -84,6 +87,8 @@ void QgsMapTool::deactivate()
 {
   if (mAction)
     mAction->setChecked(false);
+  if (mButton)
+    mButton->setChecked(false);
 }
 
 void QgsMapTool::setAction(QAction* action)
@@ -96,6 +101,17 @@ QAction* QgsMapTool::action()
   return mAction;
 }
 
+void QgsMapTool::setButton(QAbstractButton* button)
+{
+  mButton = button;
+}
+
+QAbstractButton* QgsMapTool::button()
+{
+  return mButton;
+}
+
+    
 void QgsMapTool::canvasMoveEvent(QMouseEvent *)
 {
 }
diff --git a/src/gui/qgsmaptool.h b/src/gui/qgsmaptool.h
@@ -28,7 +28,7 @@ class QgsPoint;
 class QgsRect;
 class QPoint;
 class QAction;
-
+class QAbstractButton;
 
 class GUI_EXPORT QgsMapTool : public QObject
 {
@@ -49,15 +49,24 @@ class GUI_EXPORT QgsMapTool : public QObject
     //! Called when rendering has finished. Default implementation does nothing.
     virtual void renderComplete();
     
-    /** Use this to associate a button, toolbutton, menu entry etc
-     * that inherits qaction to this maptool. Then when the setMapTool
+    
+    /** Use this to associate a QAction to this maptool. Then when the setMapTool
      * method of mapcanvas is called the action state will be set to on.
      * Usually this will cause e.g. a toolbutton to appear pressed in and
      * the previously used toolbutton to pop out. */
     void setAction(QAction* action);
     
+    /** Return associated action with map tool or NULL if no action is associated */
     QAction* action();
     
+    /** Use this to associate a button to this maptool. It has the same meaning
+     * as setAction() function except it works with a button instead of an QAction. */
+    void setButton(QAbstractButton* button);
+    
+    /** Return associated button with map tool or NULL if no button is associated */
+    QAbstractButton* button();
+    
+    
     /** Check whether this MapTool performs a zoom or pan operation.
      * If it does, we will be able to perform the zoom  and then 
      * resume operations with the original / previously used tool.*/
@@ -105,6 +114,10 @@ class GUI_EXPORT QgsMapTool : public QObject
     //! which will be used to set that action as active
     QAction* mAction;
     
+    //! optionally map tool can have pointer to a button
+    //! which will be used to set that action as active
+    QAbstractButton* mButton;
+    
 };
 
 #endif
