Proper conversion to subclasses for composer items.

git-svn-id: http://svn.osgeo.org/qgis/trunk@14766 c8812cc2-4d05-0410-92ff-de0c093fc19c

python/core/qgscomposeritem.sip

@@ -5,33 +5,104 @@ class QgsComposerItem: QObject, QGraphicsRectItem
 {
 %TypeHeaderCode
 #include <qgscomposeritem.h>
+//#include <qgscomposerarrow.h>
+//#include <qgscomposeritemgroup.h>
 #include <qgscomposerlabel.h>
 #include <qgscomposerlegend.h>
 #include <qgscomposermap.h>
+#include <qgspaperitem.h>
 #include <qgscomposerpicture.h>
 #include <qgscomposerscalebar.h>
 #include <qgscomposershape.h>
+//#include <qgscomposertable.h>
+//#include <qgscomposerattributetable.h>
+//#include <qgscomposertexttable.h>
 %End
 
 %ConvertToSubClassCode
-  if (dynamic_cast<QgsComposerLabel*>(sipCpp) != NULL)
-    sipClass = sipClass_QgsComposerLabel;
-  else if (dynamic_cast<QgsComposerLegend*>(sipCpp) != NULL)
-    sipClass = sipClass_QgsComposerLegend;
-  else if (dynamic_cast<QgsComposerMap*>(sipCpp) != NULL)
-    sipClass = sipClass_QgsComposerMap;
-  else if (dynamic_cast<QgsComposerPicture*>(sipCpp) != NULL)
-    sipClass = sipClass_QgsComposerPicture;
-  else if (dynamic_cast<QgsComposerScaleBar*>(sipCpp) != NULL)
-    sipClass = sipClass_QgsComposerScaleBar;
-  else if (dynamic_cast<QgsComposerShape*>(sipCpp) != NULL)
-    sipClass = sipClass_QgsComposerShape;
-  else
-    sipClass = 0;
+  // the conversions have to be static, because they're using multiple inheritance
+  // (seen in PyQt4 .sip files for some QGraphicsItem classes)
+  switch (sipCpp->type())
+  {
+  case QgsComposerItem::ComposerItem:
+    sipType = sipType_QgsComposerItem;
+    *sipCppRet = static_cast<QgsComposerItem*>(sipCpp);
+    break;
+/*  case QgsComposerItem::ComposerArrow:
+    sipType = sipType_QgsComposerArrow;
+    *sipCppRet = static_cast<QgsComposerArrow*>(sipCpp);
+    break;
+  case QgsComposerItem::ComposerItemGroup:
+    sipType = sipType_QgsComposerItemGroup;
+    *sipCppRet = static_cast<QgsComposerItemGroup*>(sipCpp);
+    break;*/
+  case QgsComposerItem::ComposerLabel:
+    sipType = sipType_QgsComposerLabel;
+    *sipCppRet = static_cast<QgsComposerLabel*>(sipCpp);
+    break;
+  case QgsComposerItem::ComposerLegend:
+    sipType = sipType_QgsComposerLegend;
+    *sipCppRet = static_cast<QgsComposerLegend*>(sipCpp);
+    break;
+  case QgsComposerItem::ComposerMap:
+    sipType = sipType_QgsComposerMap;
+    *sipCppRet = static_cast<QgsComposerMap*>(sipCpp);
+    break;
+  case QgsComposerItem::ComposerPaper:
+    sipType = sipType_QgsPaperItem;
+    *sipCppRet = static_cast<QgsPaperItem*>(sipCpp);
+    break;
+  case QgsComposerItem::ComposerPicture:
+    sipType = sipType_QgsComposerPicture;
+    *sipCppRet = static_cast<QgsComposerPicture*>(sipCpp);
+    break;
+  case QgsComposerItem::ComposerScaleBar:
+    sipType = sipType_QgsComposerScaleBar;
+    *sipCppRet = static_cast<QgsComposerScaleBar*>(sipCpp);
+    break;
+  case QgsComposerItem::ComposerShape:
+    sipType = sipType_QgsComposerShape;
+    *sipCppRet = static_cast<QgsComposerShape*>(sipCpp);
+    break;
+/*  case QgsComposerItem::ComposerTable:
+    sipType = sipType_QgsComposerTable;
+    *sipCppRet = static_cast<QgsComposerTable*>(sipCpp);
+    break;
+  case QgsComposerItem::ComposerAttributeTable:
+    sipType = sipType_QgsComposerAttributeTable;
+    *sipCppRet = static_cast<QgsComposerAttributeTable*>(sipCpp);
+    break;
+  case QgsComposerItem::ComposerTextTable:
+    sipType = sipType_QgsComposerTextTable;
+    *sipCppRet = static_cast<QgsComposerTextTable*>(sipCpp);
+    break;*/
+  default:
+    sipType = 0;
+  }
 %End
 
   public:
 
+    enum ItemType
+    {
+      // base class for the items
+      ComposerItem = 65636, /* UserType + 100 ... SIP does not do arithmetic */
+
+      // derived classes
+      ComposerArrow,
+      ComposerItemGroup,
+      ComposerLabel,
+      ComposerLegend,
+      ComposerMap,
+      ComposerPaper,  // QgsPaperItem
+      ComposerPicture,
+      ComposerScaleBar,
+      ComposerShape,
+      ComposerTable,
+      ComposerAttributeTable,
+      ComposerTextTable
+    };
+
     /**Describes the action (move or resize in different directon) to be done during mouse move*/
     enum MouseMoveAction
     {
@@ -61,12 +132,15 @@ class QgsComposerItem: QObject, QGraphicsRectItem
 
     /**Constructor
      @param manageZValue true if the z-Value of this object should be managed by mComposition*/
-    QgsComposerItem( QgsComposition* composition, bool manageZValue = true );
+    QgsComposerItem( QgsComposition* composition /TransferThis/, bool manageZValue = true );
     /**Constructor with box position and composer object
      @param manageZValue true if the z-Value of this object should be managed by mComposition*/
-    QgsComposerItem( qreal x, qreal y, qreal width, qreal height, QgsComposition* composition, bool manageZValue = true );
+    QgsComposerItem( qreal x, qreal y, qreal width, qreal height, QgsComposition* composition /TransferThis/, bool manageZValue = true );
     virtual ~QgsComposerItem();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const;
+
     /** \brief Set selected, selected item should be highlighted */
     virtual void setSelected( bool s );
 

python/core/qgscomposerlabel.sip

@@ -10,6 +10,9 @@ class QgsComposerLabel: QgsComposerItem
     QgsComposerLabel( QgsComposition *composition /TransferThis/);
     ~QgsComposerLabel();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const;
+
     /** \brief Reimplementation of QCanvasItem::paint*/
     void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
 

python/core/qgscomposerlegend.sip

@@ -11,6 +11,9 @@ class QgsComposerLegend: QgsComposerItem
     QgsComposerLegend( QgsComposition* composition /TransferThis/);
     ~QgsComposerLegend();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const;
+
     /** \brief Reimplementation of QCanvasItem::paint*/
     void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
 

python/core/qgscomposermap.sip

@@ -16,6 +16,9 @@ class QgsComposerMap : QgsComposerItem
     QgsComposerMap( QgsComposition *composition /TransferThis/ );
     ~QgsComposerMap();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const;
+
     /** \brief Preview style  */
     enum PreviewMode
     {

python/core/qgscomposerpicture.sip

@@ -12,6 +12,9 @@ class QgsComposerPicture: QgsComposerItem
     QgsComposerPicture( QgsComposition *composition /TransferThis/);
     ~QgsComposerPicture();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const;
+
     /**Reimplementation of QCanvasItem::paint*/
     void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
 

python/core/qgscomposerscalebar.sip

@@ -12,6 +12,9 @@ class QgsComposerScaleBar: QgsComposerItem
     QgsComposerScaleBar( QgsComposition* composition /TransferThis/);
     ~QgsComposerScaleBar();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const;
+
     /** \brief Reimplementation of QCanvasItem::paint*/
     void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
 

python/core/qgscomposershape.sip

@@ -17,6 +17,9 @@ class QgsComposerShape: QgsComposerItem
     QgsComposerShape( qreal x, qreal y, qreal width, qreal height, QgsComposition* composition /TransferThis/);
     ~QgsComposerShape();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const;
+
     /** \brief Reimplementation of QCanvasItem::paint - draw on canvas */
     void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
 

python/core/qgspaperitem.sip

@@ -6,10 +6,13 @@ class QgsPaperItem: QgsComposerItem
 #include <qgspaperitem.h>
 %End
   public:
-    QgsPaperItem( QgsComposition* c );
-    QgsPaperItem( qreal x, qreal y, qreal width, qreal height, QgsComposition* composition );
+    QgsPaperItem( QgsComposition* c /TransferThis/ );
+    QgsPaperItem( qreal x, qreal y, qreal width, qreal height, QgsComposition* composition /TransferThis/ );
     ~QgsPaperItem();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const;
+
     /** \brief Reimplementation of QCanvasItem::paint*/
     void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
 

src/core/composer/qgscomposerarrow.h

@@ -36,6 +36,9 @@ class CORE_EXPORT QgsComposerArrow: public QgsComposerItem
     QgsComposerArrow( const QPointF& startPoint, const QPointF& stopPoint, QgsComposition* c );
     ~QgsComposerArrow();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const { return ComposerArrow; }
+
     /** \brief Reimplementation of QCanvasItem::paint - draw on canvas */
     void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
 

src/core/composer/qgscomposerattributetable.h

@@ -44,6 +44,9 @@ class CORE_EXPORT QgsComposerAttributeTable: public QgsComposerTable
     QgsComposerAttributeTable( QgsComposition* composition );
     ~QgsComposerAttributeTable();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const { return ComposerAttributeTable; }
+
     /** \brief Reimplementation of QCanvasItem::paint*/
     virtual void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
 

src/core/composer/qgscomposeritem.h

@@ -35,6 +35,26 @@ class CORE_EXPORT QgsComposerItem: public QObject, public QGraphicsRectItem
     Q_OBJECT
   public:
 
+    enum ItemType
+    {
+      // base class for the items
+      ComposerItem = UserType + 100,
+
+      // derived classes
+      ComposerArrow,
+      ComposerItemGroup,
+      ComposerLabel,
+      ComposerLegend,
+      ComposerMap,
+      ComposerPaper,  // QgsPaperItem
+      ComposerPicture,
+      ComposerScaleBar,
+      ComposerShape,
+      ComposerTable,
+      ComposerAttributeTable,
+      ComposerTextTable
+    };
+
     /**Describes the action (move or resize in different directon) to be done during mouse move*/
     enum MouseMoveAction
     {
@@ -77,6 +97,9 @@ class CORE_EXPORT QgsComposerItem: public QObject, public QGraphicsRectItem
     QgsComposerItem( qreal x, qreal y, qreal width, qreal height, QgsComposition* composition, bool manageZValue = true );
     virtual ~QgsComposerItem();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const { return ComposerItem; }
+
     /** \brief Set selected, selected item should be highlighted */
     virtual void setSelected( bool s );
 

src/core/composer/qgscomposeritemgroup.h

@@ -27,6 +27,10 @@ class CORE_EXPORT QgsComposerItemGroup: public QgsComposerItem
   public:
     QgsComposerItemGroup( QgsComposition* c );
     ~QgsComposerItemGroup();
+
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const { return ComposerItemGroup; }
+
     /**Adds an item to the group. All the group members are deleted
      if the group is deleted*/
     void addItem( QgsComposerItem* item );

src/core/composer/qgscomposerlabel.h

@@ -28,6 +28,9 @@ class CORE_EXPORT QgsComposerLabel: public QgsComposerItem
     QgsComposerLabel( QgsComposition *composition );
     ~QgsComposerLabel();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const { return ComposerLabel; }
+
     /** \brief Reimplementation of QCanvasItem::paint*/
     void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
 

src/core/composer/qgscomposerlegend.h

@@ -37,6 +37,9 @@ class CORE_EXPORT QgsComposerLegend: public QgsComposerItem
     QgsComposerLegend( QgsComposition* composition );
     ~QgsComposerLegend();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const { return ComposerLegend; }
+
     /** \brief Reimplementation of QCanvasItem::paint*/
     void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
 

src/core/composer/qgscomposermap.h

@@ -46,6 +46,9 @@ class CORE_EXPORT QgsComposerMap : public QgsComposerItem
     QgsComposerMap( QgsComposition *composition );
     ~QgsComposerMap();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const { return ComposerMap; }
+
     /** \brief Preview style  */
     enum PreviewMode
     {

src/core/composer/qgscomposerpicture.h

@@ -31,6 +31,9 @@ class CORE_EXPORT QgsComposerPicture: public QgsComposerItem
     QgsComposerPicture( QgsComposition *composition );
     ~QgsComposerPicture();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const { return ComposerPicture; }
+
     /**Reimplementation of QCanvasItem::paint*/
     void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
 

src/core/composer/qgscomposerscalebar.h

@@ -35,6 +35,9 @@ class CORE_EXPORT QgsComposerScaleBar: public QgsComposerItem
     QgsComposerScaleBar( QgsComposition* composition );
     ~QgsComposerScaleBar();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const { return ComposerScaleBar; }
+
     /** \brief Reimplementation of QCanvasItem::paint*/
     void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
 

src/core/composer/qgscomposershape.h

@@ -37,6 +37,9 @@ class CORE_EXPORT QgsComposerShape: public QgsComposerItem
     QgsComposerShape( qreal x, qreal y, qreal width, qreal height, QgsComposition* composition );
     ~QgsComposerShape();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const { return ComposerShape; }
+
     /** \brief Reimplementation of QCanvasItem::paint - draw on canvas */
     void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
 

src/core/composer/qgscomposertable.h

@@ -31,6 +31,9 @@ class CORE_EXPORT QgsComposerTable: public QgsComposerItem
     QgsComposerTable( QgsComposition* composition );
     virtual ~QgsComposerTable();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const { return ComposerTable; }
+
     /** \brief Reimplementation of QCanvasItem::paint*/
     virtual void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
 

src/core/composer/qgscomposertexttable.h

@@ -27,6 +27,9 @@ class CORE_EXPORT QgsComposerTextTable: public QgsComposerTable
     QgsComposerTextTable( QgsComposition* c );
     ~QgsComposerTextTable();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const { return ComposerTextTable; }
+
     void setHeaderLabels( const QStringList& l ) { mHeaderLabels = l; }
     void addRow( const QStringList& row ) { mRowText.append( row ); }
 

src/core/composer/qgspaperitem.h

@@ -29,6 +29,9 @@ class CORE_EXPORT QgsPaperItem: public QgsComposerItem
     QgsPaperItem( qreal x, qreal y, qreal width, qreal height, QgsComposition* composition );
     ~QgsPaperItem();
 
+    /** return correct graphics item type. Added in v1.7 */
+    virtual int type() const { return ComposerPaper; }
+
     /** \brief Reimplementation of QCanvasItem::paint*/
     void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );