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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Qwt User's Guide: qwt_legend.h Source File</title>
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<h1>qwt_legend.h</h1><pre class="fragment"><div>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span>
00002 <span class="comment"> * Qwt Widget Library</span>
00003 <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span>
00004 <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span>
00005 <span class="comment"> *</span>
00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span>
00008 <span class="comment"> *****************************************************************************/</span>
00009
00010 <span class="comment">// vim: expandtab</span>
00011
00012 <span class="preprocessor">#ifndef QWT_LEGEND_H</span>
00013 <span class="preprocessor"></span><span class="preprocessor">#define QWT_LEGEND_H</span>
00014 <span class="preprocessor"></span>
00015 <span class="preprocessor">#include <qpen.h></span>
00016 <span class="preprocessor">#include <qscrollview.h></span>
00017 <span class="preprocessor">#include <qlabel.h></span>
00018 <span class="preprocessor">#include "qwt_global.h"</span>
00019 <span class="preprocessor">#include "qwt_symbol.h"</span>
00020 <span class="preprocessor">#include "qwt_push_button.h"</span>
00021
00022 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
00023 <span class="preprocessor"></span><span class="preprocessor">#include <qwidgetintdict.h></span>
00024 <span class="preprocessor">#else</span>
00025 <span class="preprocessor"></span><span class="preprocessor">#include "qwt_plot_dict.h"</span>
00026 <span class="keyword">class </span>QWT_EXPORT QWidgetIntDict: <span class="keyword">public</span> QwtSeqDict<QWidget>
00027 {
00028 <span class="keyword">public</span>:
00029 QWidgetIntDict() {}
00030 };
00031 <span class="keyword">typedef</span> QIntDictIterator<QWidget> QWidgetIntDictIt;
00032 <span class="preprocessor">#endif</span>
00033 <span class="preprocessor"></span>
00034 <span class="keyword">class </span>QPainter;
00035 <span class="keyword">class </span><a class="code" href="class_qwt_text.html">QwtText</a>;
00036
<a name="l00041"></a><a class="code" href="class_qwt_legend_item.html">00041</a> <span class="keyword">class </span><a class="code" href="class_qwt_legend_item.html">QwtLegendItem</a>
00042 {
00043 <span class="keyword">public</span>:
<a name="l00051"></a><a class="code" href="class_qwt_legend_item.html#w4">00051</a> <span class="keyword">enum</span> <a class="code" href="class_qwt_legend_item.html#w4">IdentifierMode</a>
00052 {
00053 NoIdentifier = 0,
00054 ShowLine = 1,
00055 ShowSymbol = 2,
00056 ShowText = 4
00057 };
00058
00059 <a class="code" href="class_qwt_legend_item.html#a0">QwtLegendItem</a>();
00060 <a class="code" href="class_qwt_legend_item.html#a0">QwtLegendItem</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_symbol.html">QwtSymbol</a> &, <span class="keyword">const</span> QPen &);
00061
00062 <span class="keyword">virtual</span> <a class="code" href="class_qwt_legend_item.html#a2">~QwtLegendItem</a>();
00063
00064 <span class="keywordtype">void</span> <a class="code" href="class_qwt_legend_item.html#a3">setIdentifierMode</a>(<span class="keywordtype">int</span>);
00065 <span class="keywordtype">int</span> <a class="code" href="class_qwt_legend_item.html#a4">identifierMode</a>() const;
00066
00067 <span class="keywordtype">void</span> setSymbol(const <a class="code" href="class_qwt_symbol.html">QwtSymbol</a> &);
00068 const QwtSymbol& symbol() const;
00069
00070 <span class="keywordtype">void</span> setCurvePen(const QPen &);
00071 const QPen& curvePen() const;
00072
00073 virtual <span class="keywordtype">void</span> drawIdentifier(QPainter *, const QRect &) const;
00074 virtual <span class="keywordtype">void</span> drawItem(QPainter *p, const QRect &) const;
00075
00076 virtual <span class="keywordtype">void</span> setTitle(const QString &) = 0;
00077 virtual QString title() const = 0;
00078
00079 protected:
00080 virtual <a class="code" href="class_qwt_text.html">QwtText</a> *titleText() const = 0;
00081 virtual <span class="keywordtype">void</span> updateItem();
00082
00083 private:
00084 <span class="keywordtype">int</span> d_identifierMode;
00085 QwtSymbol d_symbol;
00086 QPen d_curvePen;
00087 };
00088
<a name="l00099"></a><a class="code" href="class_qwt_legend_button.html">00099</a> class QWT_EXPORT <a class="code" href="class_qwt_legend_button.html">QwtLegendButton</a>: public <a class="code" href="class_qwt_push_button.html">QwtPushButton</a>, public <a class="code" href="class_qwt_legend_item.html">QwtLegendItem</a>
00100 {
00101 Q_OBJECT
00102 <span class="keyword">public</span>:
00103 <a class="code" href="class_qwt_legend_button.html">QwtLegendButton</a>(QWidget *parent = 0, <span class="keyword">const</span> <span class="keywordtype">char</span> *name = 0);
00104 <a class="code" href="class_qwt_legend_button.html">QwtLegendButton</a>(<span class="keyword">const</span> QwtSymbol &, <span class="keyword">const</span> QPen &,
00105 <span class="keyword">const</span> QString &, QWidget *parent = 0, <span class="keyword">const</span> <span class="keywordtype">char</span> *name = 0);
00106
00107 <span class="keyword">virtual</span> <span class="keywordtype">void</span> setTitle(<span class="keyword">const</span> QString &);
00108 <span class="keyword">virtual</span> QString title() <span class="keyword">const</span>;
00109
00110 <span class="keyword">protected</span>:
00111 <span class="keyword">virtual</span> <a class="code" href="class_qwt_text.html">QwtText</a> *titleText() <span class="keyword">const</span>;
00112 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_legend_item.html#b1">updateItem</a>();
00113 <span class="keyword">virtual</span> <span class="keywordtype">void</span> updateIconset();
00114
00115 <span class="keyword">private</span>:
00116 <span class="keywordtype">void</span> init();
00117 };
00118
<a name="l00128"></a><a class="code" href="class_qwt_legend_label.html">00128</a> <span class="keyword">class </span>QWT_EXPORT QwtLegendLabel: <span class="keyword">public</span> QLabel, <span class="keyword">public</span> <a class="code" href="class_qwt_legend_item.html">QwtLegendItem</a>
00129 {
00130 Q_OBJECT
00131 <span class="keyword">public</span>:
00132 QwtLegendLabel(QWidget *parent = 0, <span class="keyword">const</span> <span class="keywordtype">char</span> *name = 0);
00133 QwtLegendLabel(<span class="keyword">const</span> <a class="code" href="class_qwt_symbol.html">QwtSymbol</a> &, <span class="keyword">const</span> QPen &,
00134 <span class="keyword">const</span> QString &, QWidget *parent = 0, <span class="keyword">const</span> <span class="keywordtype">char</span> *name = 0);
00135
00136 <span class="keyword">virtual</span> <span class="keywordtype">void</span> setTitle(<span class="keyword">const</span> QString &);
00137 <span class="keyword">virtual</span> QString title() <span class="keyword">const</span>;
00138
00139 <span class="keyword">protected</span>:
00140 <span class="keyword">virtual</span> <a class="code" href="class_qwt_text.html">QwtText</a> *titleText() <span class="keyword">const</span>;
00141 <span class="keyword">virtual</span> <span class="keywordtype">void</span> drawContents(QPainter *);
00142 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_legend_item.html#b1">updateItem</a>();
00143
00144 <span class="keyword">private</span>:
00145 <span class="keywordtype">void</span> init();
00146 };
00147
<a name="l00158"></a><a class="code" href="class_qwt_legend.html">00158</a> <span class="keyword">class </span>QWT_EXPORT QwtLegend : <span class="keyword">public</span> QScrollView
00159 {
00160 Q_OBJECT
00161
00162 Q_PROPERTY( <span class="keywordtype">bool</span> readOnly READ isReadOnly WRITE setReadOnly )
00163
00164 <span class="keyword">public</span>:
00165
<a name="l00187"></a><a class="code" href="class_qwt_legend.html#w3">00187</a> <span class="keyword">enum</span> LegendDisplayPolicy
00188 {
00189 None = 0,
00190 Fixed = 1,
00191 Auto = 2
00192 };
00193
00194 QwtLegend(QWidget *parent = 0, <span class="keyword">const</span> <span class="keywordtype">char</span> *name = 0);
00195
00196 <span class="keywordtype">void</span> setReadOnly(<span class="keywordtype">bool</span> readOnly);
00197 <span class="keywordtype">bool</span> isReadOnly() const;
00198
00199 <span class="keywordtype">void</span> setDisplayPolicy(LegendDisplayPolicy policy, <span class="keywordtype">int</span> mode = -1);
00200 LegendDisplayPolicy displayPolicy() const;
00201
00202 <span class="keywordtype">int</span> identifierMode() const;
00203
00204 QWidget *contentsWidget();
00205 const QWidget *contentsWidget() const;
00206
00207 <span class="keywordtype">void</span> insertItem(QWidget *, <span class="keywordtype">long</span> key);
00208 QWidget *findItem(<span class="keywordtype">long</span> key);
00209 const QWidget *findItem(<span class="keywordtype">long</span> key) const;
00210 QWidget *takeItem(<span class="keywordtype">long</span> key);
00211
00212 virtual QWidgetIntDictIt itemIterator() const;
00213
00214 <span class="keywordtype">long</span> key(const QWidget *) const;
00215
00216 <span class="keywordtype">void</span> clear();
00217
00218 <span class="keywordtype">bool</span> isEmpty() const;
00219 uint itemCount() const;
00220
00221 virtual <span class="keywordtype">bool</span> eventFilter(QObject *, QEvent *);
00222
00223 virtual QSize sizeHint() const;
00224 virtual <span class="keywordtype">int</span> heightForWidth(<span class="keywordtype">int</span> w) const;
00225
00226 protected:
00227 virtual <span class="keywordtype">void</span> viewportResizeEvent(QResizeEvent *);
00228 virtual <span class="keywordtype">void</span> layoutContents();
00229
00230 private:
00231 <span class="keywordtype">bool</span> d_readOnly;
00232 LegendDisplayPolicy d_displayPolicy;
00233 <span class="keywordtype">int</span> d_identifierMode;
00234 QWidgetIntDict d_items;
00235 QWidget *d_contentsWidget;
00236 };
00237
<a name="l00239"></a><a class="code" href="class_qwt_legend.html#a15">00239</a> inline <span class="keywordtype">bool</span> QwtLegend::isEmpty()<span class="keyword"> const </span>
00240 <span class="keyword"></span>{
00241 <span class="keywordflow">return</span> d_items.count() == 0;
00242 }
00243
<a name="l00245"></a><a class="code" href="class_qwt_legend.html#a16">00245</a> <span class="keyword">inline</span> uint <a class="code" href="class_qwt_legend.html#a16">QwtLegend::itemCount</a>()<span class="keyword"> const </span>
00246 <span class="keyword"></span>{
00247 <span class="keywordflow">return</span> d_items.count();
00248 }
00249
00250 <span class="preprocessor">#endif // QWT_LEGEND_H</span>
</div></pre><hr size="1"><address style="align: right;"><small>Generated on Tue Nov 16 21:12:20 2004 for Qwt User's Guide by
<a href="http://www.doxygen.org/index.html">
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