File indexing completed on 2024-06-02 04:35:05 

0001 /***************************************************************************
0002  *                                                                         *
0003  *   copyright : (C) 2007 The University of Toronto                        *
0004  *                   netterfield@astro.utoronto.ca                         *
0005  *                                                                         *
0006  *   This program is free software; you can redistribute it and/or modify  *
0007  *   it under the terms of the GNU General Public License as published by  *
0008  *   the Free Software Foundation; either version 2 of the License, or     *
0009  *   (at your option) any later version.                                   *
0010  *                                                                         *
0011  ***************************************************************************/
0012 
0013 #ifndef LABELITEM_H
0014 #define LABELITEM_H
0015 
0016 #include "viewitem.h"
0017 #include "labelrenderer.h"
0018 #include "graphicsfactory.h"
0019 
0020 namespace Label {
0021   struct Parsed;
0022 }
0023 
0024 namespace Kst {
0025 
0026 class ScriptInterface;
0027 
0028 class LabelItem : public ViewItem {
0029   Q_OBJECT
0030   public:
0031     LabelItem(View *parent, const QString& labelText);
0032     virtual ~LabelItem();
0033 
0034     const QString defaultsGroupName() const {return LabelItem::staticDefaultsGroupName();}
0035     static QString staticDefaultsGroupName() { return QString("label");}
0036 
0037     // for view item dialogs
0038     virtual bool hasStroke() const {return true;}
0039     virtual bool hasBrush() const {return true;}
0040     virtual bool hasFont() const {return true;}
0041 
0042     virtual void save(QXmlStreamWriter &xml);
0043     virtual void paint(QPainter *painter);
0044 
0045     QString labelText();
0046     void setLabelText(const QString &text);
0047 
0048     qreal labelScale();
0049     void setLabelScale(const qreal scale);
0050 
0051     QColor labelColor() const;
0052     void setLabelColor(const QColor &color);
0053 
0054     QFont labelFont() const;
0055     void setLabelFont(const QFont &font);
0056 
0057     void applyDefaults();
0058     void saveAsDialogDefaults() const;
0059     static void saveDialogDefaultsFont(const QFont &F, const QColor &C);
0060 
0061     virtual void setFont(const QFont &f, const QColor &c);
0062 
0063     virtual void updateDataRelativeRect(bool force = false);
0064     virtual void applyDataLockedDimensions();
0065     virtual void updateChildGeometry(const QRectF &oldParentRect, const QRectF &newParentRect);
0066 
0067     bool fixLeft() const {return _fixleft;}
0068     void setFixLeft(bool fix_left) {_fixleft = fix_left;}
0069 
0070     virtual bool customDimensionsTab() {return true;}
0071 
0072     Label::RenderContext *_labelRc;
0073 
0074     bool inputsChanged(qint64 serial);
0075 
0076     virtual ScriptInterface *createScriptInterface();
0077   public Q_SLOTS:
0078     virtual void edit();
0079     void setDirty() { _dirty = true; }
0080     void triggerUpdate();
0081 
0082   protected Q_SLOTS:
0083     virtual void creationPolygonChanged(View::CreationEvent event);
0084     virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
0085 
0086   private:
0087     void generateLabel(QPainter *p);
0088 
0089     QTransform _paintTransform;
0090     bool _dirty;
0091     QString _text;
0092     qreal _scale;
0093     QColor _color;
0094     QFont _font;
0095     qreal _height;
0096     bool _resized;
0097     bool _dataRelativeDimValid;
0098     bool _fixleft;
0099     qint64 _serialOfLastChange;
0100 };
0101 
0102 
0103 class CreateLabelCommand : public CreateCommand {
0104   public:
0105     CreateLabelCommand() : CreateCommand(QObject::tr("Create Label")) {}
0106     CreateLabelCommand(View *view): CreateCommand(view, QObject::tr("Create Label")) {}
0107     virtual ~CreateLabelCommand() {}
0108     virtual void createTextItem(QString *inText = 0);
0109     virtual void createItem();
0110 };
0111 
0112 class LabelItemFactory : public GraphicsFactory {
0113   public:
0114     LabelItemFactory();
0115     ~LabelItemFactory();
0116     ViewItem* generateGraphics(QXmlStreamReader& stream, ObjectStore *store, View *view, ViewItem *parent = 0);
0117 };
0118 
0119 }
0120 
0121 #endif
0122 
0123 // vim: ts=2 sw=2 et