[FEATURE] Reworked symbol selector/properties dialog, greatly improve…

…d style manager

This is merge of Arun's GSoC 2012 work.

Merge remote-tracking branch 'arun/gsoc'

Conflicts:
	src/gui/symbology-ng/qgssymbolv2selectordialog.cpp

python/core/symbology-ng-core.sip

@@ -1265,7 +1265,7 @@ class QgsSymbolLayerV2Utils
 
     static QgsSymbolV2* loadSymbol( QDomElement& element ) /Factory/;
     static QgsSymbolLayerV2* loadSymbolLayer( QDomElement& element ) /Factory/;
-    static QDomElement saveSymbol( QString name, QgsSymbolV2* symbol, QDomDocument& doc, QgsSymbolV2Map* subSymbols = NULL );
+    static QDomElement saveSymbol( QString name, QgsSymbolV2* symbol, QDomDocument& doc );
 
     static QgsStringMap parseProperties( QDomElement& element );
     static void saveProperties( QgsStringMap props, QDomDocument& doc, QDomElement& element );

python/gui/symbology-ng-gui.sip

@@ -1,31 +1,4 @@
 
-
-class QgsSymbolV2PropertiesDialog : QDialog //, private Ui::DlgSymbolV2Properties
-{
-%TypeHeaderCode
-#include <qgssymbolv2propertiesdialog.h>
-%End
-
-public:
-  QgsSymbolV2PropertiesDialog(QgsSymbolV2* symbol, const QgsVectorLayer* vl, QWidget* parent = NULL);
-
-
-public slots:
-  void moveLayerDown();
-  void moveLayerUp();
-
-  void addLayer();
-  void removeLayer();
-
-  void lockLayer();
-
-  void layerTypeChanged();
-
-  void layerChanged();
-
-};
-
-
 class QgsRendererV2PropertiesDialog : QDialog //, private Ui::QgsRendererV2PropsDialogBase
 {
 %TypeHeaderCode
@@ -71,27 +44,33 @@ class QgsSymbolV2SelectorDialog : QDialog //, private Ui::QgsSymbolV2SelectorDia
 %TypeHeaderCode
 #include <qgssymbolv2selectordialog.h>
 %End
+  public:
+    QgsSymbolV2SelectorDialog( QgsSymbolV2* symbol, QgsStyleV2* style, const QgsVectorLayer* vl, QWidget* parent = NULL, bool embedded = false );
 
-public:
-  QgsSymbolV2SelectorDialog(QgsSymbolV2* symbol, QgsStyleV2* style, const QgsVectorLayer* vl, QWidget* parent = NULL, bool embedded = false);
-
-protected:
-  void populateSymbolView();
-  void updateSymbolPreview();
-  void updateSymbolColor();
-  void updateSymbolInfo();
-
+    QMenu* advancedMenu();
 
-public slots:
-  void changeSymbolProperties();
-  void setSymbolFromStyle(const QModelIndex & index);
-  void setSymbolColor();
-  void setMarkerAngle(double angle);
-  void setMarkerSize(double size);
-  void setLineWidth(double width);
-
-signals:
-  void symbolModified();
+  protected:
+    void keyPressEvent( QKeyEvent * event );
+
+    void loadSymbol();
+    void updateUi();
+    void updateLockButton();
+    QgsSymbolLayerV2* currentLayer();
+    void moveLayerByOffset( int offset );
+    void setWidget( QWidget* widget );
+
+  signals:
+    void symbolModified();
+
+  public slots:
+    void moveLayerDown();
+    void moveLayerUp();
+    void addLayer();
+    void removeLayer();
+    void lockLayer();
+    void layerChanged();
+    void updateLayerPreview();
+    void updatePreview();
 
 };
 

resources/CMakeLists.txt

@@ -1,4 +1,4 @@
-INSTALL(FILES srs.db qgis.db qgis_help.db symbology-ng-style.xml spatialite.db customization.xml
+INSTALL(FILES srs.db qgis.db qgis_help.db symbology-ng-style.db spatialite.db customization.xml
         DESTINATION ${QGIS_DATA_DIR}/resources)
 
 ADD_SUBDIRECTORY(context_help)

scripts/symbol_xml2db.py

@@ -0,0 +1,105 @@
+#!/usr/bin/python
+"""
+/***************************************************************************
+                               symbol_xml2db.py
+                              -------------------
+    begin                : 26-5-2012
+    copyright            : (C) 2012 by Arunmozhi
+    email                : aruntheguy 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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+    The script creates a sqlite3 Db for storing the symbols which will be
+    shipped with QGIS by default. It then converts symbols and colorramps
+    in the symbology_ng_style.xml to the database table entries.
+"""
+import sqlite3
+
+from xml.dom.minidom import parse, parseString
+
+xmlfile = "../resources/symbology-ng-style.xml"
+dbfile = "../resources/symbology-ng-style.db"
+
+_symbol = "CREATE TABLE symbol("\
+        "id INTEGER PRIMARY KEY,"\
+        "name TEXT UNIQUE,"\
+        "xml TEXT,"\
+        "groupid INTEGER)"
+
+_colorramp = "CREATE TABLE colorramp("\
+        "id INTEGER PRIMARY KEY,"\
+        "name TEXT,"\
+        "xml TEXT,"\
+        "groupid INTEGER)"
+
+_tag = "CREATE TABLE tag("\
+        "id INTEGER PRIMARY KEY,"\
+        "name TEXT)"
+
+_tagmap = "CREATE TABLE tagmap("\
+        "tag_id INTEGER NOT NULL,"\
+        "symbol_id INTEGER)"
+
+_symgroup = "CREATE TABLE symgroup("\
+        "id INTEGER PRIMARY KEY,"\
+        "name TEXT,"\
+        "parent INTEGER)"
+
+_smartgroup = "CREATE TABLE smartgroup("\
+        "id INTEGER PRIMARY KEY,"\
+        "name TEXT,"\
+        "xml TEXT)"
+
+_ctagmap = "CREATE TABLE ctagmap("\
+        "tag_id INTEGER NOT NULL,"\
+        "colorramp_id INTEGER)"
+
+create_tables = [ _symbol, _colorramp, _tag, _tagmap, _ctagmap, _symgroup, _smartgroup ]
+
+# Create the DB with required Schema
+conn = sqlite3.connect( dbfile )
+c = conn.cursor()
+print "Creating tables in the Database\n"
+for table in create_tables:
+    try:
+        c.execute( table )
+        print table
+    except sqlite3.OperationalError as e:
+        pass
+    conn.commit()
+
+# parse the XML file &  write symbol into DB
+dom = parse( xmlfile )
+symbols = dom.getElementsByTagName( "symbol" )
+for symbol in symbols:
+    symbol_name = symbol.getAttribute( "name" )
+    if '@' in symbol_name:
+        parts = symbol_name.split('@')
+        parent_name = parts[1]
+        layerno = int(parts[2])
+        c.execute( "SELECT xml FROM symbol WHERE name=(?)", (parent_name,) )
+        symdom = parseString( c.fetchone()[0] ).getElementsByTagName( 'symbol' )[0]
+        symdom.getElementsByTagName( "layer" )[ layerno ].appendChild( symbol )
+        c.execute( "UPDATE symbol SET xml=? WHERE name=?", ( symdom.toxml(), parent_name ))
+    else:
+        c.execute( "INSERT INTO symbol VALUES (?,?,?,?)", ( None, symbol_name, symbol.toxml(), None ) )
+conn.commit()
+
+
+# ColorRamps
+colorramps = dom.getElementsByTagName( "colorramp" )
+for ramp in colorramps:
+    ramp_name = ramp.getAttribute( "name" )
+    c.execute( "INSERT INTO colorramp VALUES (?,?,?,?)", ( None, ramp_name, ramp.toxml(), None ) )
+conn.commit()
+
+# Finally close the sqlite cursor
+c.close()

src/app/qgsdecorationgriddialog.cpp

@@ -24,7 +24,6 @@
 #include "qgsstylev2.h"
 #include "qgssymbolv2.h"
 #include "qgssymbolv2selectordialog.h"
-#include "qgssymbolv2propertiesdialog.h"
 #include "qgisapp.h"
 
 #include <QFontDialog>
@@ -212,7 +211,7 @@ void QgsDecorationGridDialog::on_mLineSymbolButton_clicked()
     return;
 
   QgsLineSymbolV2* lineSymbol = dynamic_cast<QgsLineSymbolV2*>( mLineSymbol->clone() );
-  QgsSymbolV2PropertiesDialog dlg( lineSymbol, 0, this );
+  QgsSymbolV2SelectorDialog dlg( lineSymbol, QgsStyleV2::defaultStyle(), 0, this );
   if ( dlg.exec() == QDialog::Rejected )
   {
     delete lineSymbol;
@@ -235,7 +234,7 @@ void QgsDecorationGridDialog::on_mMarkerSymbolButton_clicked()
     return;
 
   QgsMarkerSymbolV2* markerSymbol = dynamic_cast<QgsMarkerSymbolV2*>( mMarkerSymbol->clone() );
-  QgsSymbolV2PropertiesDialog dlg( markerSymbol, 0, this );
+  QgsSymbolV2SelectorDialog dlg( markerSymbol, QgsStyleV2::defaultStyle(), 0, this );
   if ( dlg.exec() == QDialog::Rejected )
   {
     delete markerSymbol;

src/core/qgsapplication.cpp

@@ -557,12 +557,12 @@ const QString QgsApplication::svgPath()
 
 const QString QgsApplication::userStyleV2Path()
 {
-  return qgisSettingsDirPath() + QString( "symbology-ng-style.xml" );
+  return qgisSettingsDirPath() + QString( "symbology-ng-style.db" );
 }
 
 const QString QgsApplication::defaultStyleV2Path()
 {
-  return ABISYM( mPkgDataPath ) + QString( "/resources/symbology-ng-style.xml" );
+  return ABISYM( mPkgDataPath ) + QString( "/resources/symbology-ng-style.db" );
 }
 
 const QString QgsApplication::libraryPath()

src/core/symbology-ng/qgsmarkersymbollayerv2.cpp

@@ -794,6 +794,32 @@ QStringList QgsSvgMarkerSymbolLayerV2::listSvgFiles()
   return list;
 }
 
+// Stripped down version of listSvgFiles() for specified directory
+QStringList QgsSvgMarkerSymbolLayerV2::listSvgFilesAt( QString directory )
+{
+  // TODO anything that applies for the listSvgFiles() applies this also
+
+  QStringList list;
+  QStringList svgPaths;
+  svgPaths.append( directory );
+
+  for ( int i = 0; i < svgPaths.size(); i++ )
+  {
+    QDir dir( svgPaths[i] );
+    foreach( QString item, dir.entryList( QDir::Dirs | QDir::NoDotAndDotDot ) )
+    {
+      svgPaths.insert( i + 1, dir.path() + "/" + item );
+    }
+
+    foreach( QString item, dir.entryList( QStringList( "*.svg" ), QDir::Files ) )
+    {
+      list.append( dir.path() + "/" + item );
+    }
+  }
+  return list;
+
+}
+
 QString QgsSvgMarkerSymbolLayerV2::symbolNameToPath( QString name )
 {
   // copied from QgsSymbol::setNamedPointSymbol - TODO: unify

src/core/symbology-ng/qgsmarkersymbollayerv2.h

@@ -109,6 +109,9 @@ class CORE_EXPORT QgsSvgMarkerSymbolLayerV2 : public QgsMarkerSymbolLayerV2
     //! Return a list of all available svg files
     static QStringList listSvgFiles();
 
+    //! Return a list of svg files at the specified directory
+    static QStringList listSvgFilesAt( QString directory );
+
     //! Get symbol's path from its name
     static QString symbolNameToPath( QString name );