qwt_text.h
00001 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- ***************************** 00002 * Qwt Widget Library 00003 * Copyright (C) 1997 Josef Wilgen 00004 * Copyright (C) 2003 Uwe Rathmann 00005 * 00006 * This library is free software; you can redistribute it and/or 00007 * modify it under the terms of the Qwt License, Version 1.0 00008 *****************************************************************************/ 00009 00010 // vim: expandtab 00011 00012 #ifndef QWT_TEXT_H 00013 #define QWT_TEXT_H 00014 00015 #include <qstring.h> 00016 #include <qsize.h> 00017 #include <qfont.h> 00018 #include "qwt_global.h" 00019 00020 class QColor; 00021 class QPen; 00022 class QBrush; 00023 class QRect; 00024 class QPainter; 00025 class QwtTextEngine; 00026 00051 class QWT_EXPORT QwtText 00052 { 00053 public: 00054 00085 enum TextFormat 00086 { 00087 AutoText = 0, 00088 00089 PlainText, 00090 RichText, 00091 00092 MathMLText, 00093 TeXText, 00094 00095 OtherFormat = 100 00096 }; 00097 00111 enum PaintAttribute 00112 { 00113 PaintUsingTextFont = 1, 00114 PaintUsingTextColor = 2, 00115 PaintBackground = 4 00116 }; 00117 00129 enum LayoutAttribute 00130 { 00131 MinimumLayout = 1 00132 }; 00133 00134 QwtText(const QString & = QString::null, 00135 TextFormat textFormat = AutoText); 00136 QwtText(const QwtText &); 00137 ~QwtText(); 00138 00139 QwtText &operator=(const QwtText &); 00140 00141 int operator==(const QwtText &) const; 00142 int operator!=(const QwtText &) const; 00143 00144 void setText(const QString &, 00145 QwtText::TextFormat textFormat = AutoText); 00146 QString text() const; 00147 00149 inline bool isNull() const { return text().isNull(); } 00150 00152 inline bool isEmpty() const { return text().isEmpty(); } 00153 00154 void setFont(const QFont &); 00155 QFont font() const; 00156 00157 QFont usedFont(const QFont &) const; 00158 00159 void setRenderFlags(int flags); 00160 int renderFlags() const; 00161 00162 void setColor(const QColor &); 00163 QColor color() const; 00164 00165 QColor usedColor(const QColor &) const; 00166 00167 void setBackgroundPen(const QPen &); 00168 QPen backgroundPen() const; 00169 00170 void setBackgroundBrush(const QBrush &); 00171 QBrush backgroundBrush() const; 00172 00173 void setPaintAttribute(PaintAttribute, bool on = true); 00174 bool testPaintAttribute(PaintAttribute) const; 00175 00176 void setLayoutAttribute(LayoutAttribute, bool on = true); 00177 bool testLayoutAttribute(LayoutAttribute) const; 00178 00179 int heightForWidth(int width, const QFont & = QFont()) const; 00180 QSize textSize(const QFont & = QFont()) const; 00181 00182 void draw(QPainter *painter, const QRect &rect) const; 00183 00184 static const QwtTextEngine *textEngine(const QString &text, 00185 QwtText::TextFormat = AutoText); 00186 00187 static const QwtTextEngine *textEngine(QwtText::TextFormat); 00188 static void setTextEngine(QwtText::TextFormat, QwtTextEngine *); 00189 00190 private: 00191 class PrivateData; 00192 PrivateData *d_data; 00193 00194 class LayoutCache; 00195 LayoutCache *d_layoutCache; 00196 }; 00197 00198 #endif
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