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/** \ingroup core
Undo command to undo/redo all composer item related changes*/
class QgsComposerItemCommand: QUndoCommand
{
%TypeHeaderCode
#include "qgscomposeritemcommand.h"
%End
public:
QgsComposerItemCommand( QgsComposerItem* item, const QString& text, QUndoCommand* parent /TransferThis/ = 0 );
virtual ~QgsComposerItemCommand();
/** Reverses the command*/
void undo();
/** Replays the command*/
void redo();
/** Saves current item state as previous state*/
void savePreviousState();
/** Saves current item state as after state*/
void saveAfterState();
QDomDocument previousState() const;
QDomDocument afterState() const;
/** Returns true if previous state and after state are valid and different*/
bool containsChange() const;
/** Returns the target item the command applies to.
* @returns target composer item
*/
QgsComposerItem *item() const;
protected:
void saveState( QDomDocument& stateDoc ) const;
void restoreState( QDomDocument& stateDoc ) const;
};
/** A composer command that merges together with other commands having the same context (=id). Keeps the oldest previous state and uses the
newest after state. The purpose is to avoid too many micro changes in the history*/
class QgsComposerMergeCommand : QgsComposerItemCommand
{
%TypeHeaderCode
#include "qgscomposeritemcommand.h"
%End
public:
enum Context
{
Unknown,
//composer label
ComposerLabelSetText,
ComposerLabelSetId,
//composer map
ComposerMapRotation,
ComposerMapAnnotationDistance,
//composer legend
ComposerLegendText,
LegendColumnCount,
LegendSplitLayer,
LegendEqualColumnWidth,
LegendSymbolWidth,
LegendSymbolHeight,
LegendWmsLegendWidth,
LegendWmsLegendHeight,
LegendTitleSpaceBottom,
LegendGroupSpace,
LegendLayerSpace,
LegendSymbolSpace,
LegendIconSymbolSpace,
LegendBoxSpace,
LegendColumnSpace,
LegendRasterBorderWidth,
//composer picture
ComposerPictureRotation,
// composer scalebar
ScaleBarLineWidth,
ScaleBarHeight,
ScaleBarSegmentSize,
ScaleBarSegmentsLeft,
ScaleBarNSegments,
ScaleBarUnitText,
ScaleBarMapUnitsSegment,
ScaleBarLabelBarSize,
ScaleBarBoxContentSpace,
// composer table
TableMaximumFeatures,
TableMargin,
TableGridStrokeWidth,
//composer shape
ShapeCornerRadius,
ShapeOutlineWidth,
//composer arrow
ArrowOutlineWidth,
ArrowHeadWidth,
//item
ItemOutlineWidth,
ItemMove,
ItemRotation,
ItemTransparency,
ItemZoomContent
};
QgsComposerMergeCommand( Context c, QgsComposerItem* item, const QString& text );
~QgsComposerMergeCommand();
bool mergeWith( const QUndoCommand * command );
int id() const;
};
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