Peter M. Groen / openbr

qwt__picker_8h_source.html 20.9 KB
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<h1>qwt_picker.h</h1>  </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: &quot;stroustrup&quot; -*- *****************************</span>
<a name="l00002"></a>00002 <span class="comment"> * Qwt Widget Library</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 1997   Josef Wilgen</span>
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2002   Uwe Rathmann</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
<a name="l00007"></a>00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span>
<a name="l00008"></a>00008 <span class="comment"> *****************************************************************************/</span>
<a name="l00009"></a>00009 
<a name="l00010"></a>00010 <span class="preprocessor">#ifndef QWT_PICKER</span>
<a name="l00011"></a>00011 <span class="preprocessor"></span><span class="preprocessor">#define QWT_PICKER 1</span>
<a name="l00012"></a>00012 <span class="preprocessor"></span>
<a name="l00013"></a>00013 <span class="preprocessor">#include &quot;qwt_global.h&quot;</span>
<a name="l00014"></a>00014 <span class="preprocessor">#include &quot;qwt_text.h&quot;</span>
<a name="l00015"></a>00015 <span class="preprocessor">#include &quot;qwt_event_pattern.h&quot;</span>
<a name="l00016"></a>00016 <span class="preprocessor">#include &lt;qobject.h&gt;</span>
<a name="l00017"></a>00017 <span class="preprocessor">#include &lt;qpen.h&gt;</span>
<a name="l00018"></a>00018 <span class="preprocessor">#include &lt;qfont.h&gt;</span>
<a name="l00019"></a>00019 <span class="preprocessor">#include &lt;qrect.h&gt;</span>
<a name="l00020"></a>00020 
<a name="l00021"></a>00021 <span class="keyword">class </span>QWidget;
<a name="l00022"></a>00022 <span class="keyword">class </span>QMouseEvent;
<a name="l00023"></a>00023 <span class="keyword">class </span>QWheelEvent;
<a name="l00024"></a>00024 <span class="keyword">class </span>QKeyEvent;
<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>;
<a name="l00026"></a>00026 
<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>
<a name="l00094"></a>00094 {
<a name="l00095"></a>00095     Q_OBJECT
<a name="l00096"></a>00096 
<a name="l00097"></a>00097     Q_ENUMS( <a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894">RubberBand</a> )
<a name="l00098"></a>00098     Q_ENUMS( <a class="code" href="class_qwt_picker.html#a01be4d404ffc3a7b238b0d0aaeb66b93" title="Display mode.">DisplayMode</a> )
<a name="l00099"></a>00099     Q_ENUMS( <a class="code" href="class_qwt_picker.html#ab3c894deed026f392496dd07809a6fd3">ResizeMode</a> )
<a name="l00100"></a>00100 
<a name="l00101"></a>00101     Q_PROPERTY( <span class="keywordtype">bool</span> isEnabled READ isEnabled WRITE setEnabled )
<a name="l00102"></a>00102     Q_PROPERTY( <a class="code" href="class_qwt_picker.html#ab3c894deed026f392496dd07809a6fd3">ResizeMode</a> resizeMode READ resizeMode WRITE setResizeMode )
<a name="l00103"></a>00103 
<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 )
<a name="l00105"></a>00105     Q_PROPERTY( QPen trackerPen READ trackerPen WRITE setTrackerPen )
<a name="l00106"></a>00106     Q_PROPERTY( QFont trackerFont READ trackerFont WRITE setTrackerFont )
<a name="l00107"></a>00107 
<a name="l00108"></a>00108     Q_PROPERTY( <a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894">RubberBand</a> rubberBand READ rubberBand WRITE setRubberBand )
<a name="l00109"></a>00109     Q_PROPERTY( QPen rubberBandPen READ rubberBandPen WRITE setRubberBandPen )
<a name="l00110"></a>00110 
<a name="l00111"></a>00111 <span class="keyword">public</span>:
<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>
<a name="l00120"></a>00120     {
<a name="l00122"></a><a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894abe995b2c285314bf9fc459581e100934">00122</a>         NoRubberBand = 0,
<a name="l00123"></a>00123 
<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>,
<a name="l00126"></a>00126 
<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>,
<a name="l00129"></a>00129 
<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>,
<a name="l00132"></a>00132 
<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>,
<a name="l00135"></a>00135 
<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>,
<a name="l00138"></a>00138 
<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;amp;PolygonSelection )">PolygonRubberBand</a>,
<a name="l00141"></a>00141 
<a name="l00146"></a><a class="code" href="class_qwt_picker.html#ab36c79d8ff20aba5b778d2823c1f7894a96f40f8cc50bd940f0338a68ba159b8e">00146</a>         UserRubberBand = 100
<a name="l00147"></a>00147     };
<a name="l00148"></a>00148 
<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>
<a name="l00154"></a>00154     {
<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>,
<a name="l00157"></a>00157 
<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>,
<a name="l00160"></a>00160 
<a name="l00162"></a><a class="code" href="class_qwt_picker.html#a01be4d404ffc3a7b238b0d0aaeb66b93a973f3446b39ea41b5dc3b31593ecb64a">00162</a>         ActiveOnly
<a name="l00163"></a>00163     };
<a name="l00164"></a>00164 
<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>
<a name="l00174"></a>00174     {
<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>,
<a name="l00177"></a>00177 
<a name="l00179"></a><a class="code" href="class_qwt_picker.html#ab3c894deed026f392496dd07809a6fd3ae873df582534c398b2f753763b0eb780">00179</a>         KeepSize
<a name="l00180"></a>00180     };
<a name="l00181"></a>00181 
<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 );
<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,
<a name="l00184"></a>00184                         DisplayMode trackerMode, QWidget * );
<a name="l00185"></a>00185 
<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>();
<a name="l00187"></a>00187 
<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> * );
<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>;
<a name="l00190"></a>00190     <a class="code" href="class_qwt_picker_machine.html" title="A state machine for QwtPicker selections.">QwtPickerMachine</a> *stateMachine();
<a name="l00191"></a>00191 
<a name="l00192"></a>00192     <span class="keywordtype">void</span> setRubberBand( RubberBand );
<a name="l00193"></a>00193     RubberBand rubberBand() <span class="keyword">const</span>;
<a name="l00194"></a>00194 
<a name="l00195"></a>00195     <span class="keywordtype">void</span> setTrackerMode( DisplayMode );
<a name="l00196"></a>00196     DisplayMode trackerMode() <span class="keyword">const</span>;
<a name="l00197"></a>00197 
<a name="l00198"></a>00198     <span class="keywordtype">void</span> setResizeMode( ResizeMode );
<a name="l00199"></a>00199     ResizeMode resizeMode() <span class="keyword">const</span>;
<a name="l00200"></a>00200 
<a name="l00201"></a>00201     <span class="keywordtype">void</span> setRubberBandPen( <span class="keyword">const</span> QPen &amp; );
<a name="l00202"></a>00202     QPen rubberBandPen() <span class="keyword">const</span>;
<a name="l00203"></a>00203 
<a name="l00204"></a>00204     <span class="keywordtype">void</span> setTrackerPen( <span class="keyword">const</span> QPen &amp; );
<a name="l00205"></a>00205     QPen trackerPen() <span class="keyword">const</span>;
<a name="l00206"></a>00206 
<a name="l00207"></a>00207     <span class="keywordtype">void</span> setTrackerFont( <span class="keyword">const</span> QFont &amp; );
<a name="l00208"></a>00208     QFont trackerFont() <span class="keyword">const</span>;
<a name="l00209"></a>00209 
<a name="l00210"></a>00210     <span class="keywordtype">bool</span> isEnabled() <span class="keyword">const</span>;
<a name="l00211"></a>00211     <span class="keywordtype">bool</span> isActive() <span class="keyword">const</span>;
<a name="l00212"></a>00212 
<a name="l00213"></a>00213     <span class="keyword">virtual</span> <span class="keywordtype">bool</span> eventFilter( QObject *, QEvent * );
<a name="l00214"></a>00214 
<a name="l00215"></a>00215     QWidget *parentWidget();
<a name="l00216"></a>00216     <span class="keyword">const</span> QWidget *parentWidget() <span class="keyword">const</span>;
<a name="l00217"></a>00217 
<a name="l00218"></a>00218     <span class="keyword">virtual</span> QRect pickRect() <span class="keyword">const</span>;
<a name="l00219"></a>00219 
<a name="l00220"></a>00220     <span class="keyword">virtual</span> <span class="keywordtype">void</span> drawRubberBand( QPainter * ) <span class="keyword">const</span>;
<a name="l00221"></a>00221     <span class="keyword">virtual</span> <span class="keywordtype">void</span> drawTracker( QPainter * ) <span class="keyword">const</span>;
<a name="l00222"></a>00222 
<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 &amp;pos ) <span class="keyword">const</span>;
<a name="l00224"></a>00224     QPoint trackerPosition() <span class="keyword">const</span>;
<a name="l00225"></a>00225     <span class="keyword">virtual</span> QRect trackerRect( <span class="keyword">const</span> QFont &amp; ) <span class="keyword">const</span>;
<a name="l00226"></a>00226 
<a name="l00227"></a>00227     QPolygon selection() <span class="keyword">const</span>;
<a name="l00228"></a>00228 
<a name="l00229"></a>00229 <span class="keyword">public</span> Q_SLOTS:
<a name="l00230"></a>00230     <span class="keywordtype">void</span> setEnabled( <span class="keywordtype">bool</span> );
<a name="l00231"></a>00231 
<a name="l00232"></a>00232 Q_SIGNALS:
<a name="l00240"></a>00240     <span class="keywordtype">void</span> activated( <span class="keywordtype">bool</span> on );
<a name="l00241"></a>00241 
<a name="l00248"></a>00248     <span class="keywordtype">void</span> selected( <span class="keyword">const</span> QPolygon &amp;polygon );
<a name="l00249"></a>00249 
<a name="l00256"></a>00256     <span class="keywordtype">void</span> appended( <span class="keyword">const</span> QPoint &amp;pos );
<a name="l00257"></a>00257 
<a name="l00265"></a>00265     <span class="keywordtype">void</span> moved( <span class="keyword">const</span> QPoint &amp;pos );
<a name="l00266"></a>00266 
<a name="l00273"></a>00273     <span class="keywordtype">void</span> removed( <span class="keyword">const</span> QPoint &amp;pos );
<a name="l00281"></a>00281     <span class="keywordtype">void</span> changed( <span class="keyword">const</span> QPolygon &amp;selection );
<a name="l00282"></a>00282 
<a name="l00283"></a>00283 <span class="keyword">protected</span>:
<a name="l00284"></a>00284     <span class="keyword">virtual</span> QPolygon adjustedPoints( <span class="keyword">const</span> QPolygon &amp; ) <span class="keyword">const</span>;
<a name="l00285"></a>00285 
<a name="l00286"></a>00286     <span class="keyword">virtual</span> <span class="keywordtype">void</span> transition( <span class="keyword">const</span> QEvent * );
<a name="l00287"></a>00287 
<a name="l00288"></a>00288     <span class="keyword">virtual</span> <span class="keywordtype">void</span> begin();
<a name="l00289"></a>00289     <span class="keyword">virtual</span> <span class="keywordtype">void</span> append( <span class="keyword">const</span> QPoint &amp; );
<a name="l00290"></a>00290     <span class="keyword">virtual</span> <span class="keywordtype">void</span> move( <span class="keyword">const</span> QPoint &amp; );
<a name="l00291"></a>00291     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <span class="keyword">remove</span>();
<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> );
<a name="l00293"></a>00293 
<a name="l00294"></a>00294     <span class="keyword">virtual</span> <span class="keywordtype">bool</span> accept( QPolygon &amp; ) <span class="keyword">const</span>;
<a name="l00295"></a>00295     <span class="keyword">virtual</span> <span class="keywordtype">void</span> reset();
<a name="l00296"></a>00296 
<a name="l00297"></a>00297     <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetMousePressEvent( QMouseEvent * );
<a name="l00298"></a>00298     <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetMouseReleaseEvent( QMouseEvent * );
<a name="l00299"></a>00299     <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetMouseDoubleClickEvent( QMouseEvent * );
<a name="l00300"></a>00300     <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetMouseMoveEvent( QMouseEvent * );
<a name="l00301"></a>00301     <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetWheelEvent( QWheelEvent * );
<a name="l00302"></a>00302     <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetKeyPressEvent( QKeyEvent * );
<a name="l00303"></a>00303     <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetKeyReleaseEvent( QKeyEvent * );
<a name="l00304"></a>00304     <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetEnterEvent( QEvent * );
<a name="l00305"></a>00305     <span class="keyword">virtual</span> <span class="keywordtype">void</span> widgetLeaveEvent( QEvent * );
<a name="l00306"></a>00306 
<a name="l00307"></a>00307     <span class="keyword">virtual</span> <span class="keywordtype">void</span> stretchSelection( <span class="keyword">const</span> QSize &amp;oldSize,
<a name="l00308"></a>00308                                    <span class="keyword">const</span> QSize &amp;newSize );
<a name="l00309"></a>00309 
<a name="l00310"></a>00310     <span class="keyword">virtual</span> <span class="keywordtype">void</span> updateDisplay();
<a name="l00311"></a>00311 
<a name="l00312"></a>00312     <span class="keyword">const</span> QWidget *rubberBandWidget() <span class="keyword">const</span>;
<a name="l00313"></a>00313     <span class="keyword">const</span> QWidget *trackerWidget() <span class="keyword">const</span>;
<a name="l00314"></a>00314 
<a name="l00315"></a>00315     <span class="keyword">const</span> QPolygon &amp;pickedPoints() <span class="keyword">const</span>;
<a name="l00316"></a>00316 
<a name="l00317"></a>00317 <span class="keyword">private</span>:
<a name="l00318"></a>00318     <span class="keywordtype">void</span> init( QWidget *, RubberBand rubberBand, DisplayMode trackerMode );
<a name="l00319"></a>00319 
<a name="l00320"></a>00320     <span class="keywordtype">void</span> setMouseTracking( <span class="keywordtype">bool</span> );
<a name="l00321"></a>00321 
<a name="l00322"></a>00322     <span class="keyword">class </span>PickerWidget;
<a name="l00323"></a>00323     <span class="keyword">class </span>PrivateData;
<a name="l00324"></a>00324     PrivateData *d_data;
<a name="l00325"></a>00325 };
<a name="l00326"></a>00326 
<a name="l00327"></a>00327 <span class="preprocessor">#endif</span>
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