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4ea5c80948
Since multiframe changes can remove and create new frame items, it's not safe to directly manipulate frame items in QgsComposerItemCommand. Now, commands which apply to a frame always fetch a reference to the correct frame item directly from the parent multiframe. Also added unit tests for this crash.
106 lines
2.8 KiB
Plaintext
106 lines
2.8 KiB
Plaintext
/**\ingroup MapComposer
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Undo command to undo/redo all composer item related changes*/
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class QgsComposerItemCommand: QUndoCommand
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{
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%TypeHeaderCode
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#include "qgscomposeritemcommand.h"
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%End
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public:
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QgsComposerItemCommand( QgsComposerItem* item, const QString& text, QUndoCommand* parent /TransferThis/ = 0 );
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virtual ~QgsComposerItemCommand();
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/**Reverses the command*/
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void undo();
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/**Replays the command*/
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void redo();
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/**Saves current item state as previous state*/
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void savePreviousState();
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/**Saves current item state as after state*/
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void saveAfterState();
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QDomDocument previousState() const;
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QDomDocument afterState() const;
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/**Returns true if previous state and after state are valid and different*/
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bool containsChange() const;
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/**Returns the target item the command applies to.
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* @returns target composer item
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*/
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QgsComposerItem* item() const;
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protected:
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void saveState( QDomDocument& stateDoc ) const;
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void restoreState( QDomDocument& stateDoc ) const;
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};
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/**A composer command that merges together with other commands having the same context (=id). Keeps the oldest previous state and uses the
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newest after state. The purpose is to avoid too many micro changes in the history*/
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class QgsComposerMergeCommand : QgsComposerItemCommand
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{
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%TypeHeaderCode
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#include "qgscomposeritemcommand.h"
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%End
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public:
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enum Context
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{
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Unknown,
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//composer label
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ComposerLabelSetText,
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ComposerLabelSetId,
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//composer map
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ComposerMapRotation,
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ComposerMapAnnotationDistance,
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//composer legend
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ComposerLegendText,
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LegendColumnCount,
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LegendSplitLayer,
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LegendEqualColumnWidth,
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LegendSymbolWidth,
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LegendSymbolHeight,
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LegendWmsLegendWidth,
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LegendWmsLegendHeight,
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LegendTitleSpaceBottom,
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LegendGroupSpace,
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LegendLayerSpace,
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LegendSymbolSpace,
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LegendIconSymbolSpace,
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LegendBoxSpace,
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LegendColumnSpace,
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//composer picture
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ComposerPictureRotation,
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// composer scalebar
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ScaleBarLineWidth,
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ScaleBarHeight,
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ScaleBarSegmentSize,
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ScaleBarSegmentsLeft,
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ScaleBarNSegments,
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ScaleBarUnitText,
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ScaleBarMapUnitsSegment,
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ScaleBarLabelBarSize,
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ScaleBarBoxContentSpace,
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// composer table
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TableMaximumFeatures,
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TableMargin,
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TableGridStrokeWidth,
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//composer shape
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ShapeCornerRadius,
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ShapeOutlineWidth,
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//composer arrow
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ArrowOutlineWidth,
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ArrowHeadWidth,
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//item
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ItemOutlineWidth,
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ItemMove,
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ItemRotation,
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ItemTransparency
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};
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QgsComposerMergeCommand( Context c, QgsComposerItem* item, const QString& text );
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~QgsComposerMergeCommand();
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bool mergeWith( const QUndoCommand * command );
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int id() const;
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};
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