Merge vector overlay branch (diagram plugin)

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@10484 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: mhugent

python/plugins/plugin_installer/installer_gui.py

@@ -571,6 +571,10 @@ def installPlugin(self):
     if plugin["status"] == "newer" and not plugin["error"]: # ask for confirmation if user downgrades an usable plugin
       if QMessageBox.warning(self, self.tr("QGIS Python Plugin Installer"), self.tr("Are you sure you want to downgrade the plugin to the latest available version? The installed one is newer!"), QMessageBox.Yes, QMessageBox.No) == QMessageBox.No:
         return
+    if plugin["status"] == "newer":
+      if QMessageBox.warning(self, self.tr("QGIS Python Plugin Installer"), self.tr("Are you sure you want to downgrade the plugin to the latest available version? The installed one is newer!"), QMessageBox.Yes, QMessageBox.No) == QMessageBox.No:
+        return
+
     dlg = QgsPluginInstallerInstallingDialog(self,plugin)
     dlg.exec_()
 
@@ -582,58 +586,38 @@ def installPlugin(self):
       self.getAllAvailablePlugins()
       QApplication.restoreOverrideCursor()
     else:
-      try:
-        exec ("sys.path_importer_cache.clear()")
-        exec ("import %s" % plugin["localdir"])
-        exec ("reload (%s)" % plugin["localdir"])
-      except:
-        pass
-      plugins.updatePlugin(key, False)
-      plugin = plugins.all()[key]
-      if not plugin["error"]:
-        if previousStatus in ["not installed", "new"]:
-          infoString = (self.tr("Plugin installed successfully"),
-          self.tr("Python plugin installed.\nNow you need to enable it in Plugin Manager."))
-        else:
-          infoString = (self.tr("Plugin reinstalled successfully"),
-          self.tr("Python plugin reinstalled.\nYou need to restart Quantum GIS in order to reload it."))
+
+      path = QDir.cleanPath(QgsApplication.qgisSettingsDirPath() + "/python/plugins/" + key)
+      if not QDir(path).exists():
+        infoString = (self.tr("Plugin has disappeared"), self.tr("The plugin seems to have been installed but I don't know where. Probably the plugin package contained a wrong named directory.\nPlease search the list of installed plugins. I'm nearly sure you'll find the plugin there, but I just can't determine which of them it is. It also means that I won't be able to determine if this plugin is installed and inform you about available updates. However the plugin may work. Please contact the plugin author and submit this issue."))
+        QApplication.setOverrideCursor(Qt.WaitCursor)
+        self.getAllAvailablePlugins()
+        QApplication.restoreOverrideCursor()
       else:
-        if plugin["error"] == "incompatible":
-          message = self.tr("The plugin is designed for a newer version of Quantum GIS. The minimum required version is:")
-          message += " <b>" + plugin["error_details"] + "</b>"
-        elif plugin["error"] == "dependent":
-          message = self.tr("The plugin depends on some components missing on your system. You need to install the following Python module in order to enable it:")
-          message += "<b> " + plugin["error_details"] + "</b>"
-        else:
-          message = self.tr("The plugin is broken. Python said:")
-          message += "<br><b>" + plugin["error_details"] + "</b>"
-        dlg = QgsPluginInstallerPluginErrorDialog(self,message)
-        dlg.exec_()
-        if dlg.result():
-          # revert installation
-          plugins.setPluginData(key, "status", "not installed")
-          plugins.setPluginData(key, "version_inst", "")
-          plugins.setPluginData(key, "desc_local", "")
-          plugins.setPluginData(key, "error", "")
-          plugins.setPluginData(key, "error_details", "")
-          pluginDir = QFileInfo(QgsApplication.qgisUserDbFilePath()).path() + "/python/plugins/" + plugin["localdir"]
-          removeDir(pluginDir)
-          if QDir(pluginDir).exists():
-            infoString = (self.tr("Plugin uninstall failed"), result)
-            try:
-              exec ("sys.path_importer_cache.clear()")
-              exec ("import %s" % plugin["localdir"])
-              exec ("reload (%s)" % plugin["localdir"])
-            except:
-              pass
-            plugins.updatePlugin(key, False)
+        try:
+          exec ("sys.path_importer_cache.clear()")
+          exec ("del sys.modules[%s]" % plugin["localdir"]) # remove old version if exist
+        except:
+          pass
+        try:
+          exec ("import %s" % plugin["localdir"])
+          exec ("reload (%s)" % plugin["localdir"])
+          if plugin["status"] == "not installed" or plugin["status"] == "new":
+            infoString = (self.tr("Plugin installed successfully"), self.tr("Python plugin installed.\nYou have to enable it in the Plugin Manager."))
           else:
-            try:
-              exec ("del sys.modules[%s]" % plugin["localdir"])
-            except:
-              pass
-            if not plugin["repository"]:
-              plugins.remove(key)
+            infoString = (self.tr("Plugin installed successfully"),self.tr("Python plugin reinstalled.\nYou have to restart Quantum GIS to reload it."))
+        except Exception, error:
+          dlg = QgsPluginInstallerPluginErrorDialog(self,error.message)
+          dlg.exec_()
+          if dlg.result():
+            pluginDir = unicode(QFileInfo(QgsApplication.qgisUserDbFilePath()).path()+"/python/plugins/"+ str(plugin["localdir"]))
+            result = removeDir(pluginDir)
+            if result:
+              QMessageBox.warning(self, self.tr("Plugin uninstall failed"), result)
+          plugins.updatePlugin(key, False)
+          self.populatePluginTree()
+          return
+        plugins.updatePlugin(key, False)
     self.populatePluginTree()
     if infoString[0]:
       QMessageBox.information(self, infoString[0], infoString[1])

src/app/qgisapp.cpp

@@ -4367,8 +4367,6 @@ void QgisApp::loadPythonSupport()
   }
 }
 
-
-
 void QgisApp::checkQgisVersion()
 {
   QApplication::setOverrideCursor( Qt::WaitCursor );

src/app/qgsoptions.cpp

@@ -241,6 +241,20 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WFlags fl ) :
 #ifdef Q_WS_MAC //MH: disable incremental update on Mac for now to avoid problems with resizing 
   groupBox_5->setEnabled( false );
 #endif //Q_WS_MAC
+
+   //overlay placement algorithm
+  mOverlayAlgorithmComboBox->insertItem(0, tr("Central point (fastest)"));
+  mOverlayAlgorithmComboBox->insertItem(1, tr("Chain (fast)"));
+  mOverlayAlgorithmComboBox->insertItem(2, tr("Popmusic tabu chain (slow)"));
+  mOverlayAlgorithmComboBox->insertItem(3, tr("Popmusic tabu (slow)"));
+  mOverlayAlgorithmComboBox->insertItem(4, tr("Popmusic chain (very slow)"));
+
+  QString overlayAlgorithmString = settings.value( "qgis/overlayPlacementAlgorithm", "Central point").toString();
+  if(overlayAlgorithmString == "Chain"){mOverlayAlgorithmComboBox->setCurrentIndex(1);}
+  else if(overlayAlgorithmString == "Popmusic tabu chain"){mOverlayAlgorithmComboBox->setCurrentIndex(2);}
+  else if(overlayAlgorithmString == "Popmusic tabu"){mOverlayAlgorithmComboBox->setCurrentIndex(3);}
+  else if(overlayAlgorithmString == "Popmusic chain"){mOverlayAlgorithmComboBox->setCurrentIndex(4);}
+  else{mOverlayAlgorithmComboBox->setCurrentIndex(0);} //default is central point
 }
 
 //! Destructor
@@ -330,6 +344,29 @@ void QgsOptions::saveOptions()
   settings.setValue( "qgis/askToSaveProjectChanges", chbAskToSaveProjectChanges->isChecked() );
   settings.setValue( "qgis/warnOldProjectVersion", chbWarnOldProjectVersion->isChecked() );
 
+  //overlay placement method
+  int overlayIndex = mOverlayAlgorithmComboBox->currentIndex();
+  if(overlayIndex == 1)
+  {
+    settings.setValue( "qgis/overlayPlacementAlgorithm", "Chain");
+  }
+  else if(overlayIndex == 2)
+  {
+    settings.setValue( "qgis/overlayPlacementAlgorithm", "Popmusic tabu chain");
+  }
+  else if(overlayIndex == 3)
+  {
+    settings.setValue( "qgis/overlayPlacementAlgorithm",  "Popmusic tabu");
+  }
+  else if(overlayIndex == 4)
+  {
+    settings.setValue( "qgis/overlayPlacementAlgorithm", "Popmusic chain");
+  }
+  else
+  {
+     settings.setValue( "qgis/overlayPlacementAlgorithm", "Central point" );
+  }
+
   if ( cmbTheme->currentText().length() == 0 )
   {
     settings.setValue( "/Themes", "default" );

src/app/qgspluginregistry.cpp

@@ -269,6 +269,7 @@ void QgsPluginRegistry::loadCppPlugin( QString theFullPathName )
   {
     case QgisPlugin::RENDERER:
     case QgisPlugin::UI:
+    case QgisPlugin::VECTOR_OVERLAY:
     {
       // UI only -- doesn't use mapcanvas
       create_ui *cf = ( create_ui * ) cast_to_fptr( myLib.resolve( "classFactory" ) );
@@ -438,3 +439,14 @@ bool QgsPluginRegistry::isPythonPluginCompatible( QString packageName )
   }
   return true;
 }
+
+QList<QgsPluginMetadata*> QgsPluginRegistry::pluginData()
+{
+   QList<QgsPluginMetadata*> resultList;
+   QMap<QString, QgsPluginMetadata>::iterator it = mPlugins.begin();
+   for(; it != mPlugins.end(); ++it)
+   {
+      resultList.push_back(&(it.value()));
+   }
+   return resultList;
+}

src/app/qgspluginregistry.h

@@ -84,6 +84,9 @@ class QgsPluginRegistry
     //! Check whether plugin is compatible with current version of QGIS
     bool isPythonPluginCompatible( QString packageName );
 
+    //! Returns metadata of all loaded plugins
+    QList<QgsPluginMetadata*> pluginData();
+  
   protected:
     //! protected constructor
     QgsPluginRegistry();

src/app/qgsprojectproperties.cpp

@@ -166,7 +166,6 @@ QgsProjectProperties::QgsProjectProperties( QgsMapCanvas* mapCanvas, QWidget *pa
       mSnappingLayerSettings.insert( *idIter, newEntry );
     }
   }
-
 }
 
 QgsProjectProperties::~QgsProjectProperties()

src/app/qgsvectorlayerproperties.cpp

@@ -22,6 +22,7 @@
 #include "qgisapp.h"
 #include "qgsapplication.h"
 #include "qgsattributeactiondialog.h"
+#include "qgsapplydialog.h"
 #include "qgscontexthelp.h"
 #include "qgscontinuouscolordialog.h"
 #include "qgscoordinatetransform.h"
@@ -30,13 +31,16 @@
 #include "qgslabel.h"
 #include "qgsgenericprojectionselector.h"
 #include "qgslogger.h"
+#include "qgspluginmetadata.h"
+#include "qgspluginregistry.h"
 #include "qgsproject.h"
 #include "qgssinglesymboldialog.h"
 #include "qgsuniquevaluedialog.h"
 #include "qgsvectorlayer.h"
 #include "qgsvectorlayerproperties.h"
 #include "qgsconfig.h"
 #include "qgsvectordataprovider.h"
+#include "qgsvectoroverlayplugin.h"
 
 #ifdef HAVE_POSTGRESQL
 #include "qgspgquerybuilder.h"
@@ -120,6 +124,19 @@ QgsVectorLayerProperties::QgsVectorLayerProperties(
 
   connect( sliderTransparency, SIGNAL( valueChanged( int ) ), this, SLOT( sliderTransparency_valueChanged( int ) ) );
 
+  //for each overlay plugin create a new tab
+  int position;
+  QList<QgsVectorOverlayPlugin*> overlayPluginList = overlayPlugins();
+  QList<QgsVectorOverlayPlugin*>::const_iterator it = overlayPluginList.constBegin();
+
+  for(; it != overlayPluginList.constEnd(); ++it)
+    {
+      QgsApplyDialog* d = (*it)->dialog(lyr);
+      position = tabWidget->addTab(d, (*it)->name());
+      tabWidget->setCurrentIndex(position); //ugly, but otherwise the properties dialog is a mess
+      mOverlayDialogs.push_back(d);
+    }
+
   tabWidget->setCurrentIndex( 0 );
 } // QgsVectorLayerProperties ctor
 
@@ -598,6 +615,12 @@ void QgsVectorLayerProperties::apply()
   }
   layer->setTransparency( static_cast < unsigned int >( 255 - sliderTransparency->value() ) );
 
+  //apply overlay dialogs
+  for(QList<QgsApplyDialog*>::iterator it = mOverlayDialogs.begin(); it != mOverlayDialogs.end(); ++it)
+    {
+      (*it)->apply();
+    }
+
   // update symbology
   emit refreshLegend( layer->getLayerID(), false );
 
@@ -1026,3 +1049,30 @@ void QgsVectorLayerProperties::on_pbnSaveStyleAs_clicked()
     myQSettings.setValue( "style/lastStyleDir", myFileDialog->directory().absolutePath() );
   }
 }
+
+QList<QgsVectorOverlayPlugin*> QgsVectorLayerProperties::overlayPlugins() const
+{
+  QList<QgsVectorOverlayPlugin*> pluginList;
+
+  QgisPlugin* thePlugin = 0;
+  QgsVectorOverlayPlugin* theOverlayPlugin = 0;
+
+  QList<QgsPluginMetadata*> pluginData = QgsPluginRegistry::instance()->pluginData();
+  for(QList<QgsPluginMetadata*>::iterator it = pluginData.begin(); it != pluginData.end(); ++it)
+    {
+      if(*it)
+    {
+      thePlugin = (*it)->plugin();
+      if(thePlugin && thePlugin->type() == QgisPlugin::VECTOR_OVERLAY)
+        {
+          theOverlayPlugin = dynamic_cast<QgsVectorOverlayPlugin*>(thePlugin);
+          if(theOverlayPlugin)
+        {
+          pluginList.push_back(theOverlayPlugin);
+        }
+        }
+    }
+    }
+
+  return pluginList;
+}

src/app/qgsvectorlayerproperties.h

@@ -30,8 +30,10 @@
 class QgsMapLayer;
 
 class QgsAttributeActionDialog;
+class QgsApplyDialog;
 class QgsLabelDialog;
 class QgsVectorLayer;
+class QgsVectorOverlayPlugin;
 
 class QgsVectorLayerProperties : public QDialog, private Ui::QgsVectorLayerPropertiesBase
 {
@@ -120,10 +122,15 @@ class QgsVectorLayerProperties : public QDialog, private Ui::QgsVectorLayerPrope
     /**Actions dialog. If apply is pressed, the actions are stored for later use */
     QgsAttributeActionDialog* actionDialog;
 
+    QList<QgsApplyDialog*> mOverlayDialogs;
+
     void updateButtons();
     void loadRows();
     void setRow( int row, int idx, const QgsField &field );
 
+    /**Requests all overlay plugis from the plugin registry. Usefull for inserting their dialogs as new tabs*/
+    QList<QgsVectorOverlayPlugin*> overlayPlugins() const;
+
     /**Buffer pixmap which takes the picture of renderers before they are assigned to the vector layer*/
     //QPixmap bufferPixmap;
     static const int context_id = 94000531;

src/core/CMakeLists.txt

@@ -7,6 +7,7 @@ SET(QGIS_CORE_SRCS
   qgis.cpp
   qgsapplication.cpp
   qgsattributeaction.cpp
+  qgscentralpointpositionmanager.cpp
   qgsclipper.cpp
   qgscontexthelp.cpp
   qgscoordinatetransform.cpp
@@ -25,6 +26,8 @@ SET(QGIS_CORE_SRCS
   qgsmaprenderer.cpp
   qgsmaptopixel.cpp
   qgsmessageoutput.cpp
+  qgsoverlayobject.cpp
+  qgspalobjectpositionmanager.cpp
   qgspoint.cpp
   qgsproject.cpp
   qgsprojectfiletransform.cpp
@@ -47,6 +50,7 @@ SET(QGIS_CORE_SRCS
   qgsvectordataprovider.cpp
   qgsvectorfilewriter.cpp
   qgsvectorlayer.cpp
+  qgsvectoroverlay.cpp
 
   composer/qgscomposeritem.cpp
   composer/qgscomposeritemgroup.cpp
@@ -64,6 +68,21 @@ SET(QGIS_CORE_SRCS
   composer/qgsticksscalebarstyle.cpp
   composer/qgscomposition.cpp
 
+  pal/feature.cpp
+  pal/geomfunction.cpp
+  pal/label.cpp
+  pal/labelposition.cpp
+  pal/layer.cpp
+  pal/pal.cpp
+  pal/palstat.cpp
+  pal/pointset.cpp
+  pal/priorityqueue.cpp
+  pal/problem.cpp
+  pal/util.cpp
+  pal/linkedlist.hpp
+  pal/hashtable.hpp
+  pal/rtree.hpp
+
   raster/qgscliptominmaxenhancement.cpp
   raster/qgscolorrampshader.cpp
   raster/qgscontrastenhancement.cpp
@@ -188,6 +207,7 @@ QT4_WRAP_CPP(QGIS_CORE_MOC_SRCS ${QGIS_CORE_MOC_HDRS})
 INCLUDE_DIRECTORIES(
   ${CMAKE_CURRENT_SOURCE_DIR} 
   composer
+  pal
   raster 
   renderer 
   symbology
@@ -209,6 +229,13 @@ IF (WIN32)
   ENDIF (MSVC)
 ENDIF (WIN32)
 
+#for PAL classes
+IF (WIN32)
+    ADD_DEFINITIONS("-D_HAVE_WINDOWS_H_")
+ELSE (WIN32)
+    ADD_DEFINITIONS("-D_HAVE_PTHREAD_")
+ENDIF (WIN32)
+
 #############################################################
 # spatial indexing library