[FEATURE]: Add point displacement renderer plugin

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@13139 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: mhugent

src/plugins/CMakeLists.txt

@@ -12,6 +12,7 @@ SUBDIRS (copyright_label
   diagram_overlay
   evis
   labeling
+  point_displacement_renderer
   )
 
 IF (POSTGRES_FOUND)

src/plugins/point_displacement_renderer/CMakeLists.txt

@@ -0,0 +1,55 @@
+########################################################
+# Files
+
+SET (POINT_DISPLACEMENT_SRCS
+     qgsdisplacementplugin.cpp
+     qgspointdisplacementrenderer.cpp
+     qgspointdisplacementrendererwidget.cpp
+)
+
+SET (POINT_DISPLACEMENT_UIS 
+    qgspointdisplacementrendererwidgetbase.ui
+    )
+
+SET (POINT_DISPLACEMENT_MOC_HDRS
+  qgspointdisplacementrendererwidget.h
+)
+
+########################################################
+# Build
+
+QT4_WRAP_UI (POINT_DISPLACEMENT_UIS_H  ${POINT_DISPLACEMENT_UIS})
+
+QT4_WRAP_CPP (POINT_DISPLACEMENT_MOC_SRCS  ${POINT_DISPLACEMENT_MOC_HDRS})
+
+ADD_LIBRARY (displacementplugin MODULE 
+  ${POINT_DISPLACEMENT_SRCS}
+${POINT_DISPLACEMENT_UIS_H}
+${POINT_DISPLACEMENT_MOC_SRCS}
+)
+
+INCLUDE_DIRECTORIES(
+     ${CMAKE_CURRENT_BINARY_DIR}
+    ${CMAKE_CURRENT_BINARY_DIR}/../../ui
+     ../../core 
+     ../../core/symbology-ng
+     ../../core/spatialindex
+    ../../gui
+    ../../gui/symbology-ng
+     ..
+     .
+)
+
+TARGET_LINK_LIBRARIES(displacementplugin
+  qgis_core
+  qgis_gui
+)
+
+
+########################################################
+# Install
+
+INSTALL(TARGETS displacementplugin
+  RUNTIME DESTINATION ${QGIS_PLUGIN_DIR}
+  LIBRARY DESTINATION ${QGIS_PLUGIN_DIR}
+  )

src/plugins/point_displacement_renderer/qgsdisplacementplugin.cpp

@@ -0,0 +1,86 @@
+/***************************************************************************
+                              qgsdisplacementplugin.cpp
+                              -------------------------
+  begin                : January 26, 2010
+  copyright            : (C) 2010 by Marco Hugentobler
+  email                : marco at hugis dot net
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "qgsdisplacementplugin.h"
+#include "qgisinterface.h"
+#include "qgspointdisplacementrenderer.h"
+#include "qgspointdisplacementrendererwidget.h"
+#include "qgsrendererv2registry.h"
+#include "qgssymbollayerv2registry.h"
+#include <QObject>
+
+static const QString name_ = QObject::tr( "Displacement plugin" );
+static const QString description_ = QObject::tr( "Adds a new renderer that automatically handles point displacement in case they have the same position" );
+static const QString version_ = QObject::tr( "Version 0.1" );
+
+QgsDisplacementPlugin::QgsDisplacementPlugin( QgisInterface* iface ): mIface( iface )
+{
+
+}
+
+QgsDisplacementPlugin::~QgsDisplacementPlugin()
+{
+
+}
+
+void QgsDisplacementPlugin::initGui()
+{
+  //Add new renderer to the registry
+
+  QgsRendererV2Registry::instance()->addRenderer( new QgsRendererV2Metadata( "pointDisplacement",
+      QObject::tr( "point Displacement" ),
+      QgsPointDisplacementRenderer::create, QIcon(),
+      QgsPointDisplacementRendererWidget::create ) );
+}
+
+void QgsDisplacementPlugin::unload()
+{
+  //Remove renderer type from the registry
+  QgsRendererV2Registry::instance()->removeRenderer( "pointDisplacement" );
+}
+
+QGISEXTERN QgisPlugin * classFactory( QgisInterface * theQgisInterfacePointer )
+{
+  return new QgsDisplacementPlugin( theQgisInterfacePointer );
+}
+
+QGISEXTERN QString name()
+{
+  return name_;
+}
+
+QGISEXTERN QString description()
+{
+  return description_;
+}
+
+QGISEXTERN QString version()
+{
+  return version_;
+}
+
+QGISEXTERN int type()
+{
+  return QgisPlugin::UI;
+}
+
+QGISEXTERN void unload( QgisPlugin* thePluginPointer )
+{
+  delete thePluginPointer;
+}
+
+

src/plugins/point_displacement_renderer/qgsdisplacementplugin.h

@@ -0,0 +1,40 @@
+/***************************************************************************
+                              qgsdisplacementplugin.h
+                              -----------------------
+  begin                : January 26, 2010
+  copyright            : (C) 2010 by Marco Hugentobler
+  email                : marco at hugis dot net
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef QGSDISPLACEMENTPLUGIN_H
+#define QGSDISPLACEMENTPLUGIN_H
+
+#include "qgisplugin.h"
+
+class QgisInterface;
+
+/**A plugin that adds a point displacement renderer to the symbol registry*/
+class QgsDisplacementPlugin: public QgisPlugin
+{
+  public:
+    QgsDisplacementPlugin( QgisInterface* iface );
+    ~QgsDisplacementPlugin();
+    /**Adds renderer to the registry*/
+    void initGui();
+    /**Removes renderer from the registry*/
+    void unload();
+
+  private:
+    QgisInterface* mIface;
+};
+
+#endif // QGSDISPLACEMENTPLUGIN_H