PyQGIS: added QgsColorButton and QgsColorButtonV2

git-svn-id: http://svn.osgeo.org/qgis/trunk@12771 c8812cc2-4d05-0410-92ff-de0c093fc19c

python/gui/gui.sip

@@ -7,6 +7,7 @@
 
 %Import core/core.sip
 
+%Include qgscolorbutton.sip
 %Include qgslegendinterface.sip
 %Include qgisinterface.sip
 %Include qgscomposerview.sip

python/gui/qgscolorbutton.sip

@@ -0,0 +1,34 @@
+
+
+class QgsColorButton : QToolButton
+{
+%TypeHeaderCode
+#include <qgscolorbutton.h>
+%End
+
+  public:
+    QgsColorButton( QWidget *parent = 0 );
+    ~QgsColorButton();
+
+    void setColor( const QColor &color );
+    QColor color() const;
+
+  protected:
+    void paintEvent( QPaintEvent *e );
+
+};
+
+
+class QgsColorButtonV2 : QPushButton
+{
+%TypeHeaderCode
+#include <qgscolorbutton.h>
+%End
+
+  public:
+    QgsColorButtonV2( QWidget* parent = 0 );
+    QgsColorButtonV2( QString text, QWidget* parent = 0 );
+
+    void setColor( const QColor &color );
+    QColor color() const;
+};

src/gui/qgscolorbutton.cpp

@@ -75,6 +75,11 @@ QgsColorButtonV2::QgsColorButtonV2( QWidget* parent )
 {
 }
 
+QgsColorButtonV2::QgsColorButtonV2( QString text, QWidget* parent )
+  : QPushButton( text, parent )
+{
+}
+
 void QgsColorButtonV2::setColor( const QColor &color )
 {
   mColor = color;

src/gui/qgscolorbutton.h

@@ -39,10 +39,11 @@ class GUI_EXPORT QgsColorButton: public QToolButton
 };
 
 
-class QgsColorButtonV2 : public QPushButton
+class GUI_EXPORT QgsColorButtonV2 : public QPushButton
 {
   public:
     QgsColorButtonV2( QWidget* parent = 0 );
+    QgsColorButtonV2( QString text, QWidget* parent = 0 );
 
     void setColor( const QColor &color );
     QColor color() const { return mColor; }

src/gui/symbology-ng/qgssymbolv2propertiesdialog.cpp

@@ -330,6 +330,8 @@ void QgsSymbolV2PropertiesDialog::layerTypeChanged()
 
   // change layer to a new (with different type)
   QgsSymbolLayerV2* newLayer = am->createSymbolLayer( QgsStringMap() );
+  if ( newLayer == NULL )
+    return;
   mSymbol->changeSymbolLayer( currentLayerIndex(), newLayer );
 
   updateSymbolLayerWidget( newLayer );