Added QgsMapToolEmitPoint which emits a signal when a point on map ca…

…nvas is clicked.

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@6989 c8812cc2-4d05-0410-92ff-de0c093fc19c

python/gui/gui.sip

@@ -15,6 +15,7 @@
 %Include qgsmapcanvasitem.sip
 %Include qgsmapcanvasmap.sip
 %Include qgsmaptool.sip
+%Include qgsmaptoolemitpoint.sip
 %Include qgsmaptoolpan.sip
 %Include qgsmaptoolzoom.sip
 %Include qgsmapoverviewcanvas.sip

python/gui/qgsmaptool.sip

@@ -10,6 +10,8 @@ class QgsMapTool : QObject
     sipClass = sipClass_QgsMapToolZoom;
   else if (dynamic_cast<QgsMapToolPan*>(sipCpp) != NULL)
     sipClass = sipClass_QgsMapToolPan;
+  else if (dynamic_cast<QgsMapToolEmitPoint*>(sipCpp) != NULL)
+    sipClass = sipClass_QgsMapToolEmitPoint;
   else
     sipClass = NULL;
 %End

python/gui/qgsmaptoolemitpoint.sip

@@ -0,0 +1,25 @@
+
+class QgsMapToolEmitPoint : QgsMapTool
+{
+%TypeHeaderCode
+#include <qgsmaptoolemitpoint.h>
+%End
+
+  public:
+    //! constructor
+    QgsMapToolEmitPoint(QgsMapCanvas* canvas);
+
+    //! Overridden mouse move event
+    virtual void canvasMoveEvent(QMouseEvent * e);
+
+    //! Overridden mouse press event - emits the signal
+    virtual void canvasPressEvent(QMouseEvent * e);
+
+    //! Overridden mouse release event
+    virtual void canvasReleaseEvent(QMouseEvent * e);
+
+  signals:
+
+    //! signal emitted on canvas click
+    void gotPoint(QgsPoint& point, Qt::MouseButton button);
+};

src/gui/CMakeLists.txt

@@ -12,6 +12,7 @@ qgsmapcanvasitem.cpp
 qgsmapcanvasmap.cpp
 qgsmapoverviewcanvas.cpp
 qgsmaptool.cpp
+qgsmaptoolemitpoint.cpp
 qgsmaptoolpan.cpp
 qgsmaptoolzoom.cpp
 qgsmessageviewer.cpp
@@ -26,6 +27,7 @@ qgsencodingfiledialog.h
 qgslayerprojectionselector.h
 qgsmapcanvas.h
 qgsmapoverviewcanvas.h
+qgsmaptoolemitpoint.h
 qgsprojectionselector.h
 )
 
@@ -81,6 +83,7 @@ qgsmapcanvasitem.h
 qgsmapcanvasmap.h
 qgsmapoverviewcanvas.h
 qgsmaptool.h
+qgsmaptoolemitpoint.h
 qgsmaptoolpan.h
 qgsmaptoolzoom.h
 qgsmessageviewer.h

src/gui/qgsmaptoolemitpoint.cpp

@@ -0,0 +1,39 @@
+/***************************************************************************
+    qgsmaptoolemitpoint.cpp  -  map tool that emits a signal on click
+    ---------------------
+    begin                : June 2007
+    copyright            : (C) 2007 by Martin Dobias
+    email                : wonder.sk at gmail dot com
+ ***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+/* $Id$ */
+
+
+#include "qgsmaptoolemitpoint.h"
+#include "qgsmapcanvas.h"
+
+
+QgsMapToolEmitPoint::QgsMapToolEmitPoint(QgsMapCanvas* canvas)
+  : QgsMapTool(canvas)
+{
+}
+
+void QgsMapToolEmitPoint::canvasMoveEvent(QMouseEvent * e)
+{
+}
+
+void QgsMapToolEmitPoint::canvasPressEvent(QMouseEvent * e)
+{
+  QgsPoint pnt = toMapCoords(e->pos());
+  emit gotPoint(pnt, e->button());
+}
+
+void QgsMapToolEmitPoint::canvasReleaseEvent(QMouseEvent * e)
+{
+}

src/gui/qgsmaptoolemitpoint.h

@@ -0,0 +1,48 @@
+/***************************************************************************
+    qgsmaptoolemitpoint.h  -  map tool that emits a signal on click
+    ---------------------
+    begin                : June 2007
+    copyright            : (C) 2007 by Martin Dobias
+    email                : wonder.sk at gmail dot com
+ ***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+/* $Id$ */
+
+#ifndef QGSMAPTOOLEMITPOINT_H
+#define QGSMAPTOOLEMITPOINT_H
+
+#include "qgspoint.h"
+#include "qgsmaptool.h"
+class QgsMapCanvas;
+
+
+class GUI_EXPORT QgsMapToolEmitPoint : public QgsMapTool
+{
+  Q_OBJECT
+
+  public:
+    //! constructor
+    QgsMapToolEmitPoint(QgsMapCanvas* canvas);
+
+    //! Overridden mouse move event
+    virtual void canvasMoveEvent(QMouseEvent * e);
+
+    //! Overridden mouse press event - emits the signal
+    virtual void canvasPressEvent(QMouseEvent * e);
+
+    //! Overridden mouse release event
+    virtual void canvasReleaseEvent(QMouseEvent * e);
+
+  signals:
+
+    //! signal emitted on canvas click
+    void gotPoint(QgsPoint& point, Qt::MouseButton button);
+};
+
+#endif