qwt__picker__machine_8cpp-source.html

QWT5.01用于Qt开发的二维图形库程序

<a name="l00186"></a>00186         <span class="keywordflow">case</span> QEvent::MouseButtonRelease:
<a name="l00187"></a>00187         {
<a name="l00188"></a>00188             <span class="keywordflow">if</span> ( eventPattern.mouseMatch(
<a name="l00189"></a>00189                 QwtEventPattern::MouseSelect1, (<span class="keyword">const</span> QMouseEvent *)e) )
<a name="l00190"></a>00190             {
<a name="l00191"></a>00191                 <span class="keywordflow">if</span> ( state() == 1 )
<a name="l00192"></a>00192                 {
<a name="l00193"></a>00193                     cmdList += Append;
<a name="l00194"></a>00194                     setState(2);
<a name="l00195"></a>00195                 }
<a name="l00196"></a>00196             }
<a name="l00197"></a>00197             <span class="keywordflow">break</span>;
<a name="l00198"></a>00198         }
<a name="l00199"></a>00199         <span class="keywordflow">case</span> QEvent::KeyPress:
<a name="l00200"></a>00200         {   
<a name="l00201"></a>00201             <span class="keywordflow">if</span> ( eventPattern.keyMatch(
<a name="l00202"></a>00202                 QwtEventPattern::KeySelect1, (<span class="keyword">const</span> QKeyEvent *)e) )
<a name="l00203"></a>00203             {
<a name="l00204"></a>00204                 <span class="keywordflow">if</span> ( state() == 0 )
<a name="l00205"></a>00205                 {
<a name="l00206"></a>00206                     cmdList += Begin;
<a name="l00207"></a>00207                     cmdList += Append;
<a name="l00208"></a>00208                     setState(1);
<a name="l00209"></a>00209                 }
<a name="l00210"></a>00210                 <span class="keywordflow">else</span>
<a name="l00211"></a>00211                 {
<a name="l00212"></a>00212                     <span class="keywordflow">if</span> ( state() == 1 )
<a name="l00213"></a>00213                     {
<a name="l00214"></a>00214                         cmdList += Append;
<a name="l00215"></a>00215                         setState(2);
<a name="l00216"></a>00216                     }
<a name="l00217"></a>00217                     <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( state() == 2 )
<a name="l00218"></a>00218                     {
<a name="l00219"></a>00219                         cmdList += End;
<a name="l00220"></a>00220                         setState(0);
<a name="l00221"></a>00221                     }
<a name="l00222"></a>00222                 }
<a name="l00223"></a>00223             }   
<a name="l00224"></a>00224             <span class="keywordflow">break</span>;
<a name="l00225"></a>00225         }
<a name="l00226"></a>00226         <span class="keywordflow">default</span>:
<a name="l00227"></a>00227             <span class="keywordflow">break</span>;
<a name="l00228"></a>00228     }
<a name="l00229"></a>00229 
<a name="l00230"></a>00230     <span class="keywordflow">return</span> cmdList;
<a name="l00231"></a>00231 }
<a name="l00232"></a>00232 
<a name="l00234"></a><a class="code" href="class_qwt_picker_drag_rect_machine.html#16f6018d3572450f749c6bc3a3c8e4f5">00234</a> <a class="code" href="class_qwt_picker_machine.html#c173f6053e54747d7154bbc015763a22">QwtPickerMachine::CommandList</a> <a class="code" href="class_qwt_picker_drag_rect_machine.html#16f6018d3572450f749c6bc3a3c8e4f5">QwtPickerDragRectMachine::transition</a>(
<a name="l00235"></a>00235     <span class="keyword">const</span> <a class="code" href="class_qwt_event_pattern.html">QwtEventPattern</a> &amp;eventPattern, <span class="keyword">const</span> QEvent *e)
<a name="l00236"></a>00236 {   
<a name="l00237"></a>00237     <a class="code" href="class_qwt_picker_machine.html#c173f6053e54747d7154bbc015763a22">QwtPickerMachine::CommandList</a> cmdList;
<a name="l00238"></a>00238 
<a name="l00239"></a>00239     <span class="keywordflow">switch</span>(e-&gt;type())
<a name="l00240"></a>00240     {
<a name="l00241"></a>00241         <span class="keywordflow">case</span> QEvent::MouseButtonPress:
<a name="l00242"></a>00242         {
<a name="l00243"></a>00243             <span class="keywordflow">if</span> ( eventPattern.<a class="code" href="class_qwt_event_pattern.html#ab4d0d2780ed7b3de54502b05fb9f366">mouseMatch</a>(
<a name="l00244"></a>00244                 QwtEventPattern::MouseSelect1, (<span class="keyword">const</span> QMouseEvent *)e) )
<a name="l00245"></a>00245             {
<a name="l00246"></a>00246                 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_picker_machine.html#9060b1036ef5125968fc7030681d73c0">state</a>() == 0 )
<a name="l00247"></a>00247                 {
<a name="l00248"></a>00248                     cmdList += Begin;
<a name="l00249"></a>00249                     cmdList += Append;
<a name="l00250"></a>00250                     cmdList += Append;
<a name="l00251"></a>00251                     <a class="code" href="class_qwt_picker_machine.html#569c426543e4a6aa15c221eb7c4910f0">setState</a>(2);
<a name="l00252"></a>00252                 }
<a name="l00253"></a>00253             }
<a name="l00254"></a>00254             <span class="keywordflow">break</span>;
<a name="l00255"></a>00255         }
<a name="l00256"></a>00256         <span class="keywordflow">case</span> QEvent::MouseMove:
<a name="l00257"></a>00257         <span class="keywordflow">case</span> QEvent::Wheel:
<a name="l00258"></a>00258         {
<a name="l00259"></a>00259             <span class="keywordflow">if</span> ( state() != 0 )
<a name="l00260"></a>00260                 cmdList += Move;
<a name="l00261"></a>00261             <span class="keywordflow">break</span>;
<a name="l00262"></a>00262         }
<a name="l00263"></a>00263         <span class="keywordflow">case</span> QEvent::MouseButtonRelease:
<a name="l00264"></a>00264         {
<a name="l00265"></a>00265             <span class="keywordflow">if</span> ( state() == 2 )
<a name="l00266"></a>00266             {
<a name="l00267"></a>00267                 cmdList += End;
<a name="l00268"></a>00268                 setState(0);
<a name="l00269"></a>00269             }
<a name="l00270"></a>00270             <span class="keywordflow">break</span>;
<a name="l00271"></a>00271         }
<a name="l00272"></a>00272         <span class="keywordflow">case</span> QEvent::KeyPress:
<a name="l00273"></a>00273         {
<a name="l00274"></a>00274             <span class="keywordflow">if</span> ( eventPattern.keyMatch(
<a name="l00275"></a>00275                 QwtEventPattern::KeySelect1, (<span class="keyword">const</span> QKeyEvent *)e) )
<a name="l00276"></a>00276             {
<a name="l00277"></a>00277                 <span class="keywordflow">if</span> ( state() == 0 )
<a name="l00278"></a>00278                 {
<a name="l00279"></a>00279                     cmdList += Begin;
<a name="l00280"></a>00280                     cmdList += Append;
<a name="l00281"></a>00281                     cmdList += Append;
<a name="l00282"></a>00282                     setState(2);
<a name="l00283"></a>00283                 }
<a name="l00284"></a>00284                 <span class="keywordflow">else</span>
<a name="l00285"></a>00285                 {
<a name="l00286"></a>00286                     cmdList += End;
<a name="l00287"></a>00287                     setState(0);
<a name="l00288"></a>00288                 }
<a name="l00289"></a>00289             }
<a name="l00290"></a>00290             <span class="keywordflow">break</span>;
<a name="l00291"></a>00291         }
<a name="l00292"></a>00292         <span class="keywordflow">default</span>:
<a name="l00293"></a>00293             <span class="keywordflow">break</span>;
<a name="l00294"></a>00294     }
<a name="l00295"></a>00295 
<a name="l00296"></a>00296     <span class="keywordflow">return</span> cmdList;
<a name="l00297"></a>00297 }
<a name="l00298"></a>00298 
<a name="l00300"></a><a class="code" href="class_qwt_picker_polygon_machine.html#744ff47737743d062c8f544f7a8383e5">00300</a> <a class="code" href="class_qwt_picker_machine.html#c173f6053e54747d7154bbc015763a22">QwtPickerMachine::CommandList</a> <a class="code" href="class_qwt_picker_polygon_machine.html#744ff47737743d062c8f544f7a8383e5">QwtPickerPolygonMachine::transition</a>(
<a name="l00301"></a>00301     <span class="keyword">const</span> <a class="code" href="class_qwt_event_pattern.html">QwtEventPattern</a> &amp;eventPattern, <span class="keyword">const</span> QEvent *e)
<a name="l00302"></a>00302 {
<a name="l00303"></a>00303     <a class="code" href="class_qwt_picker_machine.html#c173f6053e54747d7154bbc015763a22">QwtPickerMachine::CommandList</a> cmdList;
<a name="l00304"></a>00304 
<a name="l00305"></a>00305     <span class="keywordflow">switch</span>(e-&gt;type())
<a name="l00306"></a>00306     {
<a name="l00307"></a>00307         <span class="keywordflow">case</span> QEvent::MouseButtonPress:
<a name="l00308"></a>00308         {
<a name="l00309"></a>00309             <span class="keywordflow">if</span> ( eventPattern.<a class="code" href="class_qwt_event_pattern.html#ab4d0d2780ed7b3de54502b05fb9f366">mouseMatch</a>(
<a name="l00310"></a>00310                 QwtEventPattern::MouseSelect1, (<span class="keyword">const</span> QMouseEvent *)e) )
<a name="l00311"></a>00311             {
<a name="l00312"></a>00312                 <span class="keywordflow">if</span> (<a class="code" href="class_qwt_picker_machine.html#9060b1036ef5125968fc7030681d73c0">state</a>() == 0)
<a name="l00313"></a>00313                 {
<a name="l00314"></a>00314                     cmdList += Begin;
<a name="l00315"></a>00315                     cmdList += Append;
<a name="l00316"></a>00316                     cmdList += Append;
<a name="l00317"></a>00317                     <a class="code" href="class_qwt_picker_machine.html#569c426543e4a6aa15c221eb7c4910f0">setState</a>(1);
<a name="l00318"></a>00318                 }
<a name="l00319"></a>00319                 <span class="keywordflow">else</span>
<a name="l00320"></a>00320                 {
<a name="l00321"></a>00321                     cmdList += End;
<a name="l00322"></a>00322                     <a class="code" href="class_qwt_picker_machine.html#569c426543e4a6aa15c221eb7c4910f0">setState</a>(0);
<a name="l00323"></a>00323                 }
<a name="l00324"></a>00324             }
<a name="l00325"></a>00325             <span class="keywordflow">if</span> ( eventPattern.mouseMatch(
<a name="l00326"></a>00326                 QwtEventPattern::MouseSelect2, (<span class="keyword">const</span> QMouseEvent *)e) )
<a name="l00327"></a>00327             {
<a name="l00328"></a>00328                 <span class="keywordflow">if</span> (state() == 1)
<a name="l00329"></a>00329                     cmdList += Append;
<a name="l00330"></a>00330             }
<a name="l00331"></a>00331             <span class="keywordflow">break</span>;
<a name="l00332"></a>00332         }
<a name="l00333"></a>00333         <span class="keywordflow">case</span> QEvent::MouseMove:
<a name="l00334"></a>00334         <span class="keywordflow">case</span> QEvent::Wheel:
<a name="l00335"></a>00335         {
<a name="l00336"></a>00336             <span class="keywordflow">if</span> ( state() != 0 )
<a name="l00337"></a>00337                 cmdList += Move;
<a name="l00338"></a>00338             <span class="keywordflow">break</span>;
<a name="l00339"></a>00339         }
<a name="l00340"></a>00340         <span class="keywordflow">case</span> QEvent::KeyPress:
<a name="l00341"></a>00341         {
<a name="l00342"></a>00342             <span class="keywordflow">if</span> ( eventPattern.keyMatch(
<a name="l00343"></a>00343                 QwtEventPattern::KeySelect1, (<span class="keyword">const</span> QKeyEvent *)e) )
<a name="l00344"></a>00344             {
<a name="l00345"></a>00345                 <span class="keywordflow">if</span> ( state() == 0 )
<a name="l00346"></a>00346                 {
<a name="l00347"></a>00347                     cmdList += Begin;
<a name="l00348"></a>00348                     cmdList += Append;
<a name="l00349"></a>00349                     cmdList += Append;
<a name="l00350"></a>00350                     setState(1);
<a name="l00351"></a>00351                 }
<a name="l00352"></a>00352                 <span class="keywordflow">else</span>
<a name="l00353"></a>00353                 {
<a name="l00354"></a>00354                     cmdList += End;
<a name="l00355"></a>00355                     setState(0);
<a name="l00356"></a>00356                 }
<a name="l00357"></a>00357             }
<a name="l00358"></a>00358             <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( eventPattern.keyMatch(
<a name="l00359"></a>00359                 QwtEventPattern::KeySelect2, (<span class="keyword">const</span> QKeyEvent *)e) )
<a name="l00360"></a>00360             {
<a name="l00361"></a>00361                 <span class="keywordflow">if</span> ( state() == 1 )
<a name="l00362"></a>00362                     cmdList += Append;
<a name="l00363"></a>00363             }
<a name="l00364"></a>00364             <span class="keywordflow">break</span>;
<a name="l00365"></a>00365         }
<a name="l00366"></a>00366         <span class="keywordflow">default</span>:
<a name="l00367"></a>00367             <span class="keywordflow">break</span>;
<a name="l00368"></a>00368     }
<a name="l00369"></a>00369 
<a name="l00370"></a>00370     <span class="keywordflow">return</span> cmdList;
<a name="l00371"></a>00371 }
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Feb 26 21:22:37 2007 for Qwt User's Guide by&nbsp;
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address>
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