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<div id="projectname">Qwt User's Guide <span id="projectnumber">6.0.0</span></div>
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<div class="headertitle">
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<h1>qwt_picker.h</h1> </div>
40
<div class="contents">
41
<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span>
42
<a name="l00002"></a>00002 <span class="comment"> * Qwt Widget Library</span>
43
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span>
44
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span>
45
<a name="l00005"></a>00005 <span class="comment"> *</span>
46
<a name="l00006"></a>00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
47
<a name="l00007"></a>00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span>
48
<a name="l00008"></a>00008 <span class="comment"> *****************************************************************************/</span>
49
<a name="l00009"></a>00009
50
<a name="l00010"></a>00010 <span class="preprocessor">#ifndef QWT_PICKER</span>
51
<a name="l00011"></a>00011 <span class="preprocessor"></span><span class="preprocessor">#define QWT_PICKER 1</span>
52
<a name="l00012"></a>00012 <span class="preprocessor"></span>
53
<a name="l00013"></a>00013 <span class="preprocessor">#include "qwt_global.h"</span>
54
<a name="l00014"></a>00014 <span class="preprocessor">#include "qwt_text.h"</span>
55
<a name="l00015"></a>00015 <span class="preprocessor">#include "qwt_event_pattern.h"</span>
56
<a name="l00016"></a>00016 <span class="preprocessor">#include <qobject.h></span>
57
<a name="l00017"></a>00017 <span class="preprocessor">#include <qpen.h></span>
58
<a name="l00018"></a>00018 <span class="preprocessor">#include <qfont.h></span>
59
<a name="l00019"></a>00019 <span class="preprocessor">#include <qrect.h></span>
60
<a name="l00020"></a>00020
61
<a name="l00021"></a>00021 <span class="keyword">class </span>QWidget;
62
<a name="l00022"></a>00022 <span class="keyword">class </span>QMouseEvent;
63
<a name="l00023"></a>00023 <span class="keyword">class </span>QWheelEvent;
64
<a name="l00024"></a>00024 <span class="keyword">class </span>QKeyEvent;
65
<a name="l00025"></a>00025 <span class="keyword">class </span><a class="code" href="class_qwt_picker_machine.html" title="A state machine for QwtPicker selections.">QwtPickerMachine</a>;
66
<a name="l00026"></a>00026
67
<a name="l00093"></a><a class="code" href="class_qwt_picker.html">00093</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_picker.html" title="QwtPicker provides selections on a widget.">QwtPicker</a>: <span class="keyword">public</span> QObject, <span class="keyword">public</span> <a class="code" href="class_qwt_event_pattern.html" title="A collection of event patterns.">QwtEventPattern</a>
68
<a name="l00094"></a>00094 {
69
<a name="l00095"></a>00095 Q_OBJECT
70
<a name="l00096"></a>00096
71
<a name="l00097"></a>00097 Q_ENUMS( <a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894">RubberBand</a> )
72
<a name="l00098"></a>00098 Q_ENUMS( <a class="code" href="class_qwt_picker.html#a01be4d404ffc3a7b238b0d0aaeb66b93" title="Display mode.">DisplayMode</a> )
73
<a name="l00099"></a>00099 Q_ENUMS( <a class="code" href="class_qwt_picker.html#ab3c894deed026f392496dd07809a6fd3">ResizeMode</a> )
74
<a name="l00100"></a>00100
75
<a name="l00101"></a>00101 Q_PROPERTY( <span class="keywordtype">bool</span> isEnabled READ isEnabled WRITE setEnabled )
76
<a name="l00102"></a>00102 Q_PROPERTY( <a class="code" href="class_qwt_picker.html#ab3c894deed026f392496dd07809a6fd3">ResizeMode</a> resizeMode READ resizeMode WRITE setResizeMode )
77
<a name="l00103"></a>00103
78
<a name="l00104"></a>00104 Q_PROPERTY( <a class="code" href="class_qwt_picker.html#a01be4d404ffc3a7b238b0d0aaeb66b93" title="Display mode.">DisplayMode</a> trackerMode READ trackerMode WRITE setTrackerMode )
79
<a name="l00105"></a>00105 Q_PROPERTY( QPen trackerPen READ trackerPen WRITE setTrackerPen )
80
<a name="l00106"></a>00106 Q_PROPERTY( QFont trackerFont READ trackerFont WRITE setTrackerFont )
81
<a name="l00107"></a>00107
82
<a name="l00108"></a>00108 Q_PROPERTY( <a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894">RubberBand</a> rubberBand READ rubberBand WRITE setRubberBand )
83
<a name="l00109"></a>00109 Q_PROPERTY( QPen rubberBandPen READ rubberBandPen WRITE setRubberBandPen )
84
<a name="l00110"></a>00110
85
<a name="l00111"></a>00111 <span class="keyword">public</span>:
86
<a name="l00119"></a><a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894">00119</a> <span class="keyword">enum</span> <a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894">RubberBand</a>
87
<a name="l00120"></a>00120 {
88
<a name="l00122"></a><a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894abe995b2c285314bf9fc459581e100934">00122</a> NoRubberBand = 0,
89
<a name="l00123"></a>00123
90
<a name="l00125"></a><a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894a9f3ab0ea1294b4eb2cae7b919ce0ffb0">00125</a> <a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894a9f3ab0ea1294b4eb2cae7b919ce0ffb0" title="A horizontal line ( only for QwtPicker::PointSelection )">HLineRubberBand</a>,
91
<a name="l00126"></a>00126
92
<a name="l00128"></a><a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894a0eb6ef7b155e41ea015afc7f68940a86">00128</a> <a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894a0eb6ef7b155e41ea015afc7f68940a86" title="A vertical line ( only for QwtPicker::PointSelection )">VLineRubberBand</a>,
93
<a name="l00129"></a>00129
94
<a name="l00131"></a><a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894a1b90615892fec7ff6bb3352ce887b097">00131</a> <a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894a1b90615892fec7ff6bb3352ce887b097" title="A crosshair ( only for QwtPicker::PointSelection )">CrossRubberBand</a>,
95
<a name="l00132"></a>00132
96
<a name="l00134"></a><a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894ae4dc32fb99b4fe2058bb594ab5e8c70a">00134</a> <a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894ae4dc32fb99b4fe2058bb594ab5e8c70a" title="A rectangle ( only for QwtPicker::RectSelection )">RectRubberBand</a>,
97
<a name="l00135"></a>00135
98
<a name="l00137"></a><a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894a6a548d259f7f04ae868419431883e7ef">00137</a> <a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894a6a548d259f7f04ae868419431883e7ef" title="An ellipse ( only for QwtPicker::RectSelection )">EllipseRubberBand</a>,
99
<a name="l00138"></a>00138
100
<a name="l00140"></a><a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894a8b78b6221f2808abe027569c790f0945">00140</a> <a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894a8b78b6221f2808abe027569c790f0945" title="A polygon ( only for QwtPicker::&amp;PolygonSelection )">PolygonRubberBand</a>,
101
<a name="l00141"></a>00141
102
<a name="l00146"></a><a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894a96f40f8cc50bd940f0338a68ba159b8e">00146</a> UserRubberBand = 100
103
<a name="l00147"></a>00147 };
104
<a name="l00148"></a>00148
105
<a name="l00153"></a><a class="code" href="class_qwt_picker.html#a01be4d404ffc3a7b238b0d0aaeb66b93">00153</a> <span class="keyword">enum</span> <a class="code" href="class_qwt_picker.html#a01be4d404ffc3a7b238b0d0aaeb66b93" title="Display mode.">DisplayMode</a>
106
<a name="l00154"></a>00154 {
107
<a name="l00156"></a><a class="code" href="class_qwt_picker.html#a01be4d404ffc3a7b238b0d0aaeb66b93a94fcf579dddb78a1c88fd4136d3a673a">00156</a> <a class="code" href="class_qwt_picker.html#a01be4d404ffc3a7b238b0d0aaeb66b93a94fcf579dddb78a1c88fd4136d3a673a" title="Display never.">AlwaysOff</a>,
108
<a name="l00157"></a>00157
109
<a name="l00159"></a><a class="code" href="class_qwt_picker.html#a01be4d404ffc3a7b238b0d0aaeb66b93a07a7513aa69633c1a3b04fdbfe4674e0">00159</a> <a class="code" href="class_qwt_picker.html#a01be4d404ffc3a7b238b0d0aaeb66b93a07a7513aa69633c1a3b04fdbfe4674e0" title="Display always.">AlwaysOn</a>,
110
<a name="l00160"></a>00160
111
<a name="l00162"></a><a class="code" href="class_qwt_picker.html#a01be4d404ffc3a7b238b0d0aaeb66b93a973f3446b39ea41b5dc3b31593ecb64a">00162</a> ActiveOnly
112
<a name="l00163"></a>00163 };
113
<a name="l00164"></a>00164
114
<a name="l00173"></a><a class="code" href="class_qwt_picker.html#ab3c894deed026f392496dd07809a6fd3">00173</a> <span class="keyword">enum</span> <a class="code" href="class_qwt_picker.html#ab3c894deed026f392496dd07809a6fd3">ResizeMode</a>
115
<a name="l00174"></a>00174 {
116
<a name="l00176"></a><a class="code" href="class_qwt_picker.html#ab3c894deed026f392496dd07809a6fd3a86899007b306839db254d6d9712af588">00176</a> <a class="code" href="class_qwt_picker.html#ab3c894deed026f392496dd07809a6fd3a86899007b306839db254d6d9712af588" title="All points are scaled according to the new size,.">Stretch</a>,
117
<a name="l00177"></a>00177
118
<a name="l00179"></a><a class="code" href="class_qwt_picker.html#ab3c894deed026f392496dd07809a6fd3ae873df582534c398b2f753763b0eb780">00179</a> KeepSize
119
<a name="l00180"></a>00180 };
120
<a name="l00181"></a>00181
121
<a name="l00182"></a>00182 <span class="keyword">explicit</span> <a class="code" href="class_qwt_picker.html" title="QwtPicker provides selections on a widget.">QwtPicker</a>( QWidget *parent );
122
<a name="l00183"></a>00183 <span class="keyword">explicit</span> <a class="code" href="class_qwt_picker.html" title="QwtPicker provides selections on a widget.">QwtPicker</a>( RubberBand rubberBand,
123
<a name="l00184"></a>00184 DisplayMode trackerMode, QWidget * );
124
<a name="l00185"></a>00185
125
<a name="l00186"></a>00186 <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_picker.html" title="QwtPicker provides selections on a widget.">QwtPicker</a>();
126
<a name="l00187"></a>00187
127
<a name="l00188"></a>00188 <span class="keywordtype">void</span> setStateMachine( <a class="code" href="class_qwt_picker_machine.html" title="A state machine for QwtPicker selections.">QwtPickerMachine</a> * );
128
<a name="l00189"></a>00189 <span class="keyword">const</span> <a class="code" href="class_qwt_picker_machine.html" title="A state machine for QwtPicker selections.">QwtPickerMachine</a> *stateMachine() <span class="keyword">const</span>;
129
<a name="l00190"></a>00190 <a class="code" href="class_qwt_picker_machine.html" title="A state machine for QwtPicker selections.">QwtPickerMachine</a> *stateMachine();
130
<a name="l00191"></a>00191
131
<a name="l00192"></a>00192 <span class="keywordtype">void</span> setRubberBand( RubberBand );
132
<a name="l00193"></a>00193 RubberBand rubberBand() <span class="keyword">const</span>;
133
<a name="l00194"></a>00194
134
<a name="l00195"></a>00195 <span class="keywordtype">void</span> setTrackerMode( DisplayMode );
135
<a name="l00196"></a>00196 DisplayMode trackerMode() <span class="keyword">const</span>;
136
<a name="l00197"></a>00197
137
<a name="l00198"></a>00198 <span class="keywordtype">void</span> setResizeMode( ResizeMode );
138
<a name="l00199"></a>00199 ResizeMode resizeMode() <span class="keyword">const</span>;
139
<a name="l00200"></a>00200
140
<a name="l00201"></a>00201 <span class="keywordtype">void</span> setRubberBandPen( <span class="keyword">const</span> QPen & );
141
<a name="l00202"></a>00202 QPen rubberBandPen() <span class="keyword">const</span>;
142
<a name="l00203"></a>00203
143
<a name="l00204"></a>00204 <span class="keywordtype">void</span> setTrackerPen( <span class="keyword">const</span> QPen & );
144
<a name="l00205"></a>00205 QPen trackerPen() <span class="keyword">const</span>;
145
<a name="l00206"></a>00206
146
<a name="l00207"></a>00207 <span class="keywordtype">void</span> setTrackerFont( <span class="keyword">const</span> QFont & );
147
<a name="l00208"></a>00208 QFont trackerFont() <span class="keyword">const</span>;
148
<a name="l00209"></a>00209
149
<a name="l00210"></a>00210 <span class="keywordtype">bool</span> isEnabled() <span class="keyword">const</span>;
150
<a name="l00211"></a>00211 <span class="keywordtype">bool</span> isActive() <span class="keyword">const</span>;
151
<a name="l00212"></a>00212
152
<a name="l00213"></a>00213 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> eventFilter( QObject *, QEvent * );
153
<a name="l00214"></a>00214
154
<a name="l00215"></a>00215 QWidget *parentWidget();
155
<a name="l00216"></a>00216 <span class="keyword">const</span> QWidget *parentWidget() <span class="keyword">const</span>;
156
<a name="l00217"></a>00217
157
<a name="l00218"></a>00218 <span class="keyword">virtual</span> QRect pickRect() <span class="keyword">const</span>;
158
<a name="l00219"></a>00219
159
<a name="l00220"></a>00220 <span class="keyword">virtual</span> <span class="keywordtype">void</span> drawRubberBand( QPainter * ) <span class="keyword">const</span>;
160
<a name="l00221"></a>00221 <span class="keyword">virtual</span> <span class="keywordtype">void</span> drawTracker( QPainter * ) <span class="keyword">const</span>;
161
<a name="l00222"></a>00222
162
<a name="l00223"></a>00223 <span class="keyword">virtual</span> <a class="code" href="class_qwt_text.html" title="A class representing a text.">QwtText</a> trackerText( <span class="keyword">const</span> QPoint &pos ) <span class="keyword">const</span>;
163
<a name="l00224"></a>00224 QPoint trackerPosition() <span class="keyword">const</span>;
164
<a name="l00225"></a>00225 <span class="keyword">virtual</span> QRect trackerRect( <span class="keyword">const</span> QFont & ) <span class="keyword">const</span>;
165
<a name="l00226"></a>00226
166
<a name="l00227"></a>00227 QPolygon selection() <span class="keyword">const</span>;
167
<a name="l00228"></a>00228
168
<a name="l00229"></a>00229 <span class="keyword">public</span> Q_SLOTS:
169
<a name="l00230"></a>00230 <span class="keywordtype">void</span> setEnabled( <span class="keywordtype">bool</span> );
170
<a name="l00231"></a>00231
171
<a name="l00232"></a>00232 Q_SIGNALS:
172
<a name="l00240"></a>00240 <span class="keywordtype">void</span> activated( <span class="keywordtype">bool</span> on );
173
<a name="l00241"></a>00241
174
<a name="l00248"></a>00248 <span class="keywordtype">void</span> selected( <span class="keyword">const</span> QPolygon &polygon );
175
<a name="l00249"></a>00249
176
<a name="l00256"></a>00256 <span class="keywordtype">void</span> appended( <span class="keyword">const</span> QPoint &pos );
177
<a name="l00257"></a>00257
178
<a name="l00265"></a>00265 <span class="keywordtype">void</span> moved( <span class="keyword">const</span> QPoint &pos );
179
<a name="l00266"></a>00266
180
<a name="l00273"></a>00273 <span class="keywordtype">void</span> removed( <span class="keyword">const</span> QPoint &pos );
181
<a name="l00281"></a>00281 <span class="keywordtype">void</span> changed( <span class="keyword">const</span> QPolygon &selection );
182
<a name="l00282"></a>00282
183
<a name="l00283"></a>00283 <span class="keyword">protected</span>:
184
<a name="l00284"></a>00284 <span class="keyword">virtual</span> QPolygon adjustedPoints( <span class="keyword">const</span> QPolygon & ) <span class="keyword">const</span>;
185
<a name="l00285"></a>00285
186
<a name="l00286"></a>00286 <span class="keyword">virtual</span> <span class="keywordtype">void</span> transition( <span class="keyword">const</span> QEvent * );
187
<a name="l00287"></a>00287
188
<a name="l00288"></a>00288 <span class="keyword">virtual</span> <span class="keywordtype">void</span> begin();
189
<a name="l00289"></a>00289 <span class="keyword">virtual</span> <span class="keywordtype">void</span> append( <span class="keyword">const</span> QPoint & );
190
<a name="l00290"></a>00290 <span class="keyword">virtual</span> <span class="keywordtype">void</span> move( <span class="keyword">const</span> QPoint & );
191
<a name="l00291"></a>00291 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <span class="keyword">remove</span>();
192
<a name="l00292"></a>00292 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> end( <span class="keywordtype">bool</span> ok = <span class="keyword">true</span> );
193
<a name="l00293"></a>00293
194
<a name="l00294"></a>00294 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> accept( QPolygon & ) <span class="keyword">const</span>;
195
<a name="l00295"></a>00295 <span class="keyword">virtual</span> <span class="keywordtype">void</span> reset();
196
<a name="l00296"></a>00296
197
<a name="l00297"></a>00297 <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetMousePressEvent( QMouseEvent * );
198
<a name="l00298"></a>00298 <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetMouseReleaseEvent( QMouseEvent * );
199
<a name="l00299"></a>00299 <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetMouseDoubleClickEvent( QMouseEvent * );
200
<a name="l00300"></a>00300 <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetMouseMoveEvent( QMouseEvent * );
201
<a name="l00301"></a>00301 <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetWheelEvent( QWheelEvent * );
202
<a name="l00302"></a>00302 <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetKeyPressEvent( QKeyEvent * );
203
<a name="l00303"></a>00303 <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetKeyReleaseEvent( QKeyEvent * );
204
<a name="l00304"></a>00304 <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetEnterEvent( QEvent * );
205
<a name="l00305"></a>00305 <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetLeaveEvent( QEvent * );
206
<a name="l00306"></a>00306
207
<a name="l00307"></a>00307 <span class="keyword">virtual</span> <span class="keywordtype">void</span> stretchSelection( <span class="keyword">const</span> QSize &oldSize,
208
<a name="l00308"></a>00308 <span class="keyword">const</span> QSize &newSize );
209
<a name="l00309"></a>00309
210
<a name="l00310"></a>00310 <span class="keyword">virtual</span> <span class="keywordtype">void</span> updateDisplay();
211
<a name="l00311"></a>00311
212
<a name="l00312"></a>00312 <span class="keyword">const</span> QWidget *rubberBandWidget() <span class="keyword">const</span>;
213
<a name="l00313"></a>00313 <span class="keyword">const</span> QWidget *trackerWidget() <span class="keyword">const</span>;
214
<a name="l00314"></a>00314
215
<a name="l00315"></a>00315 <span class="keyword">const</span> QPolygon &pickedPoints() <span class="keyword">const</span>;
216
<a name="l00316"></a>00316
217
<a name="l00317"></a>00317 <span class="keyword">private</span>:
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<a name="l00318"></a>00318 <span class="keywordtype">void</span> init( QWidget *, RubberBand rubberBand, DisplayMode trackerMode );
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<a name="l00319"></a>00319
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<a name="l00320"></a>00320 <span class="keywordtype">void</span> setMouseTracking( <span class="keywordtype">bool</span> );
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<a name="l00321"></a>00321
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<a name="l00322"></a>00322 <span class="keyword">class </span>PickerWidget;
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<a name="l00323"></a>00323 <span class="keyword">class </span>PrivateData;
224
<a name="l00324"></a>00324 PrivateData *d_data;
225
<a name="l00325"></a>00325 };
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<a name="l00326"></a>00326
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<a name="l00327"></a>00327 <span class="preprocessor">#endif</span>
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<hr class="footer"/><address class="footer"><small>Generated by 
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<a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.3 </small></address>
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