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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  //composer map
78  ComposerMapRotation,
79  ComposerMapAnnotationDistance,
80  //composer legend
81  ComposerLegendText,
82  LegendColumnCount,
83  LegendSplitLayer,
84  LegendEqualColumnWidth,
85  LegendSymbolWidth,
86  LegendSymbolHeight,
87  LegendWmsLegendWidth,
88  LegendWmsLegendHeight,
89  LegendTitleSpaceBottom,
90  LegendGroupSpace,
91  LegendLayerSpace,
92  LegendSymbolSpace,
93  LegendIconSymbolSpace,
94  LegendBoxSpace,
95  LegendColumnSpace,
96  //composer picture
97  ComposerPictureRotation,
98  // composer scalebar
99  ScaleBarLineWidth,
100  ScaleBarHeight,
101  ScaleBarSegmentSize,
102  ScaleBarSegmentsLeft,
103  ScaleBarNSegments,
104  ScaleBarUnitText,
105  ScaleBarMapUnitsSegment,
106  ScaleBarLabelBarSize,
107  ScaleBarBoxContentSpace,
108  // composer table
109  TableMaximumFeatures,
110  TableMargin,
111  TableGridStrokeWidth,
112  //composer shape
113  ShapeCornerRadius,
114  ShapeOutlineWidth,
115  //composer arrow
116  ArrowOutlineWidth,
117  ArrowHeadWidth,
118  //item
119  ItemOutlineWidth,
120  ItemMove,
121  ItemRotation
122  };
123 
124  QgsComposerMergeCommand( Context c, QgsComposerItem* item, const QString& text );
125  ~QgsComposerMergeCommand();
126 
127  bool mergeWith( const QUndoCommand * command );
128  int id() const { return ( int )mContext; }
129 
130  private:
131  Context mContext;
132 };
133 
134 #endif // QGSCOMPOSERITEMCOMMAND_H
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