📄 qwt__arrow__button_8cpp-source.html
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<a name="l00179"></a>00179 contentsSize.setWidth(d_data->num * arrow.width() <a name="l00180"></a>00180 + (d_data->num - 1) * Spacing);<a name="l00181"></a>00181 contentsSize.setHeight(arrow.height());<a name="l00182"></a>00182 }<a name="l00183"></a>00183 <span class="keywordflow">else</span><a name="l00184"></a>00184 {<a name="l00185"></a>00185 contentsSize.setWidth(arrow.width());<a name="l00186"></a>00186 contentsSize.setHeight(d_data->num * arrow.height() <a name="l00187"></a>00187 + (d_data->num - 1) * Spacing);<a name="l00188"></a>00188 }<a name="l00189"></a>00189 <a name="l00190"></a>00190 QRect arrowRect(contentsSize);<a name="l00191"></a>00191 arrowRect.moveCenter(r.center());<a name="l00192"></a>00192 arrowRect.setSize(arrow);<a name="l00193"></a>00193 <a name="l00194"></a>00194 painter->save();<a name="l00195"></a>00195 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < d_data->num; i++)<a name="l00196"></a>00196 {<a name="l00197"></a>00197 <a class="code" href="class_qwt_arrow_button.html#ba724cf7e2f7e640b2e4f5c08f37d125">drawArrow</a>(painter, arrowRect, d_data->arrowType);<a name="l00198"></a>00198 <a name="l00199"></a>00199 <span class="keywordtype">int</span> dx = 0;<a name="l00200"></a>00200 <span class="keywordtype">int</span> dy = 0;<a name="l00201"></a>00201 <a name="l00202"></a>00202 if ( isVertical )<a name="l00203"></a>00203 dy = arrow.height() + Spacing;<a name="l00204"></a>00204 <span class="keywordflow">else</span><a name="l00205"></a>00205 dx = arrow.width() + Spacing;<a name="l00206"></a>00206 <a name="l00207"></a>00207 <span class="preprocessor">#if QT_VERSION >= 0x040000</span><a name="l00208"></a>00208 <span class="preprocessor"></span> arrowRect.translate(dx, dy);<a name="l00209"></a>00209 <span class="preprocessor">#else</span><a name="l00210"></a>00210 <span class="preprocessor"></span> arrowRect.moveBy(dx, dy);<a name="l00211"></a>00211 <span class="preprocessor">#endif</span><a name="l00212"></a>00212 <span class="preprocessor"></span> }<a name="l00213"></a>00213 painter->restore();<a name="l00214"></a>00214 <a name="l00215"></a>00215 <span class="keywordflow">if</span> ( hasFocus() )<a name="l00216"></a>00216 {<a name="l00217"></a>00217 <span class="preprocessor">#if QT_VERSION >= 0x040000</span><a name="l00218"></a>00218 <span class="preprocessor"></span> QStyleOptionFocusRect option;<a name="l00219"></a>00219 option.init(<span class="keyword">this</span>);<a name="l00220"></a>00220 option.backgroundColor = palette().color(QPalette::Background);<a name="l00221"></a>00221 <a name="l00222"></a>00222 style()->drawPrimitive(QStyle::PE_FrameFocusRect, <a name="l00223"></a>00223 &option, painter, <span class="keyword">this</span>);<a name="l00224"></a>00224 <span class="preprocessor">#else</span><a name="l00225"></a>00225 <span class="preprocessor"></span> <span class="keyword">const</span> QRect focusRect = <a name="l00226"></a>00226 style().subRect(QStyle::SR_PushButtonFocusRect, <span class="keyword">this</span>);<a name="l00227"></a>00227 style().drawPrimitive(QStyle::PE_FocusRect, painter,<a name="l00228"></a>00228 focusRect, colorGroup());<a name="l00229"></a>00229 <span class="preprocessor">#endif</span><a name="l00230"></a>00230 <span class="preprocessor"></span> }<a name="l00231"></a>00231 }<a name="l00232"></a>00232 <a name="l00240"></a><a class="code" href="class_qwt_arrow_button.html#ba724cf7e2f7e640b2e4f5c08f37d125">00240</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_arrow_button.html#ba724cf7e2f7e640b2e4f5c08f37d125">QwtArrowButton::drawArrow</a>(QPainter *painter, <a name="l00241"></a>00241 <span class="keyword">const</span> QRect &r, Qt::ArrowType arrowType)<span class="keyword"> const </span><a name="l00242"></a>00242 <span class="keyword"></span>{<a name="l00243"></a>00243 QwtPolygon pa(3);<a name="l00244"></a>00244 <a name="l00245"></a>00245 <span class="keywordflow">switch</span>(arrowType)<a name="l00246"></a>00246 {<a name="l00247"></a>00247 <span class="keywordflow">case</span> Qt::UpArrow:<a name="l00248"></a>00248 pa.setPoint(0, r.bottomLeft());<a name="l00249"></a>00249 pa.setPoint(1, r.bottomRight());<a name="l00250"></a>00250 pa.setPoint(2, r.center().x(), r.top());<a name="l00251"></a>00251 <span class="keywordflow">break</span>;<a name="l00252"></a>00252 <span class="keywordflow">case</span> Qt::DownArrow:<a name="l00253"></a>00253 pa.setPoint(0, r.topLeft());<a name="l00254"></a>00254 pa.setPoint(1, r.topRight());<a name="l00255"></a>00255 pa.setPoint(2, r.center().x(), r.bottom());<a name="l00256"></a>00256 <span class="keywordflow">break</span>;<a name="l00257"></a>00257 <span class="keywordflow">case</span> Qt::RightArrow:<a name="l00258"></a>00258 pa.setPoint(0, r.topLeft());<a name="l00259"></a>00259 pa.setPoint(1, r.bottomLeft());<a name="l00260"></a>00260 pa.setPoint(2, r.right(), r.center().y());<a name="l00261"></a>00261 <span class="keywordflow">break</span>;<a name="l00262"></a>00262 <span class="keywordflow">case</span> Qt::LeftArrow:<a name="l00263"></a>00263 pa.setPoint(0, r.topRight());<a name="l00264"></a>00264 pa.setPoint(1, r.bottomRight());<a name="l00265"></a>00265 pa.setPoint(2, r.left(), r.center().y());<a name="l00266"></a>00266 <span class="keywordflow">break</span>;<a name="l00267"></a>00267 <span class="keywordflow">default</span>:<a name="l00268"></a>00268 <span class="keywordflow">break</span>;<a name="l00269"></a>00269 }<a name="l00270"></a>00270 <a name="l00271"></a>00271 painter->save();<a name="l00272"></a>00272 <span class="preprocessor">#if QT_VERSION < 0x040000</span><a name="l00273"></a>00273 <span class="preprocessor"></span> painter->setPen(colorGroup().buttonText());<a name="l00274"></a>00274 painter->setBrush(colorGroup().brush(QColorGroup::ButtonText));<a name="l00275"></a>00275 <span class="preprocessor">#else</span><a name="l00276"></a>00276 <span class="preprocessor"></span> painter->setPen(palette().color(QPalette::ButtonText));<a name="l00277"></a>00277 painter->setBrush(palette().brush(QPalette::ButtonText));<a name="l00278"></a>00278 <span class="preprocessor">#endif</span><a name="l00279"></a>00279 <span class="preprocessor"></span> painter->drawPolygon(pa);<a name="l00280"></a>00280 painter->restore();<a name="l00281"></a>00281 }<a name="l00282"></a>00282 <a name="l00286"></a><a class="code" href="class_qwt_arrow_button.html#180ca16baa83c02e8dca4ffbe3dba2e8">00286</a> QSize <a class="code" href="class_qwt_arrow_button.html#180ca16baa83c02e8dca4ffbe3dba2e8">QwtArrowButton::sizeHint</a>()<span class="keyword"> const</span><a name="l00287"></a>00287 <span class="keyword"></span>{<a name="l00288"></a>00288 <span class="keywordflow">return</span> <a class="code" href="class_qwt_arrow_button.html#5bc3817732a253bb214a94d1c76508ce">minimumSizeHint</a>();<a name="l00289"></a>00289 }<a name="l00290"></a>00290 <a name="l00294"></a><a class="code" href="class_qwt_arrow_button.html#5bc3817732a253bb214a94d1c76508ce">00294</a> QSize <a class="code" href="class_qwt_arrow_button.html#5bc3817732a253bb214a94d1c76508ce">QwtArrowButton::minimumSizeHint</a>()<span class="keyword"> const</span><a name="l00295"></a>00295 <span class="keyword"></span>{<a name="l00296"></a>00296 <span class="keyword">const</span> QSize asz = <a class="code" href="class_qwt_arrow_button.html#544fc12a1756eb2b703ab9a2903240cb">arrowSize</a>(Qt::RightArrow, QSize()); <a name="l00297"></a>00297 <a name="l00298"></a>00298 QSize sz(<a name="l00299"></a>00299 2 * Margin + (MaxNum - 1) * Spacing + MaxNum * asz.width(),<a name="l00300"></a>00300 2 * Margin + asz.height()<a name="l00301"></a>00301 );<a name="l00302"></a>00302 <a name="l00303"></a>00303 <span class="keywordflow">if</span> ( d_data->arrowType == Qt::UpArrow || d_data->arrowType == Qt::DownArrow )<a name="l00304"></a>00304 sz.transpose();<a name="l00305"></a>00305 <a name="l00306"></a>00306 <span class="preprocessor">#if QT_VERSION >= 0x040000</span><a name="l00307"></a>00307 <span class="preprocessor"></span> QStyleOption styleOption;<a name="l00308"></a>00308 styleOption.init(<span class="keyword">this</span>);<a name="l00309"></a>00309 <a name="l00310"></a>00310 sz = style()->sizeFromContents(QStyle::CT_PushButton, <a name="l00311"></a>00311 &styleOption, sz, <span class="keyword">this</span>);<a name="l00312"></a>00312 <span class="preprocessor">#else</span><a name="l00313"></a>00313 <span class="preprocessor"></span> sz = style().sizeFromContents(QStyle::CT_PushButton, <span class="keyword">this</span>, sz);<a name="l00314"></a>00314 <span class="preprocessor">#endif</span><a name="l00315"></a>00315 <span class="preprocessor"></span><a name="l00316"></a>00316 <span class="keywordflow">return</span> sz;<a name="l00317"></a>00317 }<a name="l00318"></a>00318 <a name="l00326"></a><a class="code" href="class_qwt_arrow_button.html#544fc12a1756eb2b703ab9a2903240cb">00326</a> QSize <a class="code" href="class_qwt_arrow_button.html#544fc12a1756eb2b703ab9a2903240cb">QwtArrowButton::arrowSize</a>(Qt::ArrowType arrowType,<a name="l00327"></a>00327 <span class="keyword">const</span> QSize &boundingSize)<span class="keyword"> const</span><a name="l00328"></a>00328 <span class="keyword"></span>{<a name="l00329"></a>00329 QSize bs = boundingSize;<a name="l00330"></a>00330 <span class="keywordflow">if</span> ( arrowType == Qt::UpArrow || arrowType == Qt::DownArrow )<a name="l00331"></a>00331 bs.transpose();<a name="l00332"></a>00332 <a name="l00333"></a>00333 <span class="keyword">const</span> <span class="keywordtype">int</span> MinLen = 2;<a name="l00334"></a>00334 <span class="keyword">const</span> QSize sz = bs.expandedTo(<a name="l00335"></a>00335 QSize(MinLen, 2 * MinLen - 1)); <span class="comment">// minimum</span><a name="l00336"></a>00336 <a name="l00337"></a>00337 <span class="keywordtype">int</span> w = sz.width();<a name="l00338"></a>00338 <span class="keywordtype">int</span> h = 2 * w - 1;<a name="l00339"></a>00339 <a name="l00340"></a>00340 <span class="keywordflow">if</span> ( h > sz.height() )<a name="l00341"></a>00341 {<a name="l00342"></a>00342 h = sz.height();<a name="l00343"></a>00343 w = (h + 1) / 2;<a name="l00344"></a>00344 }<a name="l00345"></a>00345 <a name="l00346"></a>00346 QSize arrSize(w, h);<a name="l00347"></a>00347 <span class="keywordflow">if</span> ( arrowType == Qt::UpArrow || arrowType == Qt::DownArrow )<a name="l00348"></a>00348 arrSize.transpose();<a name="l00349"></a>00349 <a name="l00350"></a>00350 <span class="keywordflow">return</span> arrSize;<a name="l00351"></a>00351 }<a name="l00352"></a>00352 <a name="l00356"></a><a class="code" href="class_qwt_arrow_button.html#17612daa99344272c4de1313a5c67b02">00356</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_arrow_button.html#17612daa99344272c4de1313a5c67b02">QwtArrowButton::keyPressEvent</a>(QKeyEvent *e)<a name="l00357"></a>00357 {<a name="l00358"></a>00358 <span class="keywordflow">if</span> ( e->isAutoRepeat() && e->key() == Qt::Key_Space )<a name="l00359"></a>00359 emit clicked();<a name="l00360"></a>00360 <a name="l00361"></a>00361 QPushButton::keyPressEvent(e);<a name="l00362"></a>00362 }</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Feb 26 21:22:36 2007 for Qwt User's Guide by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address></body></html>⌨️ 快捷键说明
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