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qgscomposerlabel.h
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1 /***************************************************************************
2  qgscomposerlabel.h
3  -------------------
4  begin : January 2005
5  copyright : (C) 2005 by Radim Blazek
6  email : [email protected]
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 #ifndef QGSCOMPOSERLABEL_H
18 #define QGSCOMPOSERLABEL_H
19 
20 #include "qgscomposeritem.h"
21 #include <QFont>
22 
23 class QgsVectorLayer;
24 class QgsFeature;
25 
29 class CORE_EXPORT QgsComposerLabel: public QgsComposerItem
30 {
31  Q_OBJECT
32  public:
33  QgsComposerLabel( QgsComposition *composition );
34  ~QgsComposerLabel();
35 
37  virtual int type() const { return ComposerLabel; }
38 
40  void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
41 
43  void adjustSizeToText();
44 
45  QString text() { return mText; }
46  void setText( const QString& text );
47 
48  int htmlState() { return mHtmlState; }
49  void setHtmlState( int state ) {mHtmlState = state;}
50 
53  QString displayText() const;
54 
56  void setExpressionContext( QgsFeature* feature, QgsVectorLayer* layer, QMap<QString, QVariant> substitutions = ( QMap<QString, QVariant>() ) );
57 
58  QFont font() const;
59  void setFont( const QFont& f );
63  Qt::AlignmentFlag vAlign() const { return mVAlignment; }
67  Qt::AlignmentFlag hAlign() const { return mHAlignment; }
72  void setHAlign( Qt::AlignmentFlag a ) {mHAlignment = a;}
77  void setVAlign( Qt::AlignmentFlag a ) {mVAlignment = a;}
79  double margin() {return mMargin;}
81  void setMargin( double m ) {mMargin = m;}
82 
85  void setFontColor( const QColor& c ) {mFontColor = c;}
88  QColor fontColor() const {return mFontColor;}
89 
90  void setSceneRect( const QRectF& rectangle );
91 
96  bool writeXML( QDomElement& elem, QDomDocument & doc ) const;
97 
102  bool readXML( const QDomElement& itemElem, const QDomDocument& doc );
103 
104  public slots:
105  virtual void setRotation( double r );
106 
107  private slots:
108  void loadingHtmlFinished( bool );
109 
110  private:
111  // Text
112  QString mText;
113 
114  // Html state
115  int mHtmlState;
116  double mHtmlUnitsToMM;
117  double htmlUnitsToMM(); //calculate scale factor
118  bool mHtmlLoaded;
119 
121  void itemShiftAdjustSize( double newWidth, double newHeight, double& xShift, double& yShift ) const;
122 
123  // Font
124  QFont mFont;
125 
126  // Border between text and fram (in mm)
127  double mMargin;
128 
129  // Font color
130  QColor mFontColor;
131 
132  // Horizontal Alignment
133  Qt::AlignmentFlag mHAlignment;
134 
135  // Vertical Alignment
136  Qt::AlignmentFlag mVAlignment;
137 
139  void replaceDateText( QString& text ) const;
140 
142  double mTextBoxWidth;
144  double mTextBoxHeight;
145 
146  QgsFeature* mExpressionFeature;
147  QgsVectorLayer* mExpressionLayer;
148  QMap<QString, QVariant> mSubstitutions;
149 
150 
151 };
152 
153 #endif
154 
155 
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