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qgscomposeritemcommand.h
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1 /***************************************************************************
2  qgscomposeritemcommand.h
3  ------------------------
4  begin : 2010-11-18
5  copyright : (C) 2010 by Marco Hugentobler
6  email : marco dot hugentobler at sourcepole dot ch
7 ***************************************************************************/
8 
9 /***************************************************************************
10  * *
11  * This program is free software; you can redistribute it and/or modify *
12  * it under the terms of the GNU General Public License as published by *
13  * the Free Software Foundation; either version 2 of the License, or *
14  * (at your option) any later version. *
15  * *
16  ***************************************************************************/
17 
18 #ifndef QGSCOMPOSERITEMCOMMAND_H
19 #define QGSCOMPOSERITEMCOMMAND_H
20 
21 #include <QUndoCommand>
22 #include <QDomDocument>
23 
24 class QgsComposerItem;
25 
27 class CORE_EXPORT QgsComposerItemCommand: public QUndoCommand
28 {
29  public:
30  QgsComposerItemCommand( QgsComposerItem* item, const QString& text, QUndoCommand* parent = 0 );
31  virtual ~QgsComposerItemCommand();
32 
34  void undo();
36  void redo();
37 
39  void savePreviousState();
41  void saveAfterState();
42 
43  QDomDocument previousState() const { return mPreviousState.cloneNode().toDocument(); }
44  QDomDocument afterState() const { return mAfterState.cloneNode().toDocument(); }
45 
47  bool containsChange() const;
48 
49  const QgsComposerItem* item() const { return mItem; }
50 
51  protected:
53  QgsComposerItem* mItem;
55  QDomDocument mPreviousState;
57  QDomDocument mAfterState;
58 
60  bool mFirstRun;
61 
62  void saveState( QDomDocument& stateDoc ) const;
63  void restoreState( QDomDocument& stateDoc ) const;
64 };
65 
68 class CORE_EXPORT QgsComposerMergeCommand: public QgsComposerItemCommand
69 {
70  public:
71  enum Context
72  {
73  Unknown = 0,
74  //composer label
75  ComposerLabelSetText,
76  ComposerLabelSetId,
77  ComposerLabelRotation,
78  //composer map
79  ComposerMapRotation,
80  ComposerMapAnnotationDistance,
81  //composer legend
82  ComposerLegendText,
83  LegendColumnCount,
84  LegendSplitLayer,
85  LegendEqualColumnWidth,
86  LegendSymbolWidth,
87  LegendSymbolHeight,
88  LegendTitleSpaceBottom,
89  LegendGroupSpace,
90  LegendLayerSpace,
91  LegendSymbolSpace,
92  LegendIconSymbolSpace,
93  LegendBoxSpace,
94  LegendColumnSpace,
95  //composer picture
96  ComposerPictureRotation,
97  // composer scalebar
98  ScaleBarLineWidth,
99  ScaleBarHeight,
100  ScaleBarSegmentSize,
101  ScaleBarSegmentsLeft,
102  ScaleBarNSegments,
103  ScaleBarUnitText,
104  ScaleBarMapUnitsSegment,
105  ScaleBarLabelBarSize,
106  ScaleBarBoxContentSpace,
107  // composer table
108  TableMaximumFeatures,
109  TableMargin,
110  TableGridStrokeWidth,
111  //composer shape
112  ShapeRotation,
113  ShapeOutlineWidth,
114  //composer arrow
115  ArrowOutlineWidth,
116  ArrowHeadWidth,
117  //item
118  ItemOutlineWidth,
119  ItemMove
120  };
121 
122  QgsComposerMergeCommand( Context c, QgsComposerItem* item, const QString& text );
123  ~QgsComposerMergeCommand();
124 
125  bool mergeWith( const QUndoCommand * command );
126  int id() const { return ( int )mContext; }
127 
128  private:
129  Context mContext;
130 };
131 
132 #endif // QGSCOMPOSERITEMCOMMAND_H
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