📄 qwt__plot__layout_8cpp-source.html
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<a name="l00409"></a>00409 <span class="keywordflow">return</span> d_data->titleRect;<a name="l00410"></a>00410 }<a name="l00411"></a>00411 <a name="l00417"></a><a class="code" href="class_qwt_plot_layout.html#f3f630625686721b521a8cd3c015bcbf">00417</a> <span class="keyword">const</span> QRect &<a class="code" href="class_qwt_plot_layout.html#f3f630625686721b521a8cd3c015bcbf">QwtPlotLayout::legendRect</a>()<span class="keyword"> const</span><a name="l00418"></a>00418 <span class="keyword"></span>{<a name="l00419"></a>00419 <span class="keywordflow">return</span> d_data->legendRect;<a name="l00420"></a>00420 }<a name="l00421"></a>00421 <a name="l00428"></a><a class="code" href="class_qwt_plot_layout.html#87154a8c0f12698113bf8990a7d579f6">00428</a> <span class="keyword">const</span> QRect &<a class="code" href="class_qwt_plot_layout.html#87154a8c0f12698113bf8990a7d579f6">QwtPlotLayout::scaleRect</a>(<span class="keywordtype">int</span> axis)<span class="keyword"> const</span><a name="l00429"></a>00429 <span class="keyword"></span>{<a name="l00430"></a>00430 <span class="keywordflow">if</span> ( axis < 0 || axis >= QwtPlot::axisCnt )<a name="l00431"></a>00431 {<a name="l00432"></a>00432 <span class="keyword">static</span> QRect dummyRect;<a name="l00433"></a>00433 <span class="keywordflow">return</span> dummyRect;<a name="l00434"></a>00434 }<a name="l00435"></a>00435 <span class="keywordflow">return</span> d_data->scaleRect[axis];<a name="l00436"></a>00436 }<a name="l00437"></a>00437 <a name="l00443"></a><a class="code" href="class_qwt_plot_layout.html#244d79c1d635630b5d160053b62ae9f3">00443</a> <span class="keyword">const</span> QRect &<a class="code" href="class_qwt_plot_layout.html#244d79c1d635630b5d160053b62ae9f3">QwtPlotLayout::canvasRect</a>()<span class="keyword"> const</span><a name="l00444"></a>00444 <span class="keyword"></span>{<a name="l00445"></a>00445 <span class="keywordflow">return</span> d_data->canvasRect;<a name="l00446"></a>00446 }<a name="l00447"></a>00447 <a name="l00452"></a><a class="code" href="class_qwt_plot_layout.html#44ce72879951571ffe4daa95be0ec242">00452</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_layout.html#44ce72879951571ffe4daa95be0ec242">QwtPlotLayout::invalidate</a>()<a name="l00453"></a>00453 {<a name="l00454"></a>00454 d_data->titleRect = d_data->legendRect = d_data->canvasRect = QRect();<a name="l00455"></a>00455 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> axis = 0; axis < QwtPlot::axisCnt; axis++ )<a name="l00456"></a>00456 d_data->scaleRect[axis] = QRect();<a name="l00457"></a>00457 }<a name="l00458"></a>00458 <a name="l00464"></a><a class="code" href="class_qwt_plot_layout.html#068a12c510998760c727a095f5b055fe">00464</a> QSize <a class="code" href="class_qwt_plot_layout.html#068a12c510998760c727a095f5b055fe">QwtPlotLayout::minimumSizeHint</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_plot.html">QwtPlot</a> *plot)<span class="keyword"> const</span><a name="l00465"></a>00465 <span class="keyword"></span>{<a name="l00466"></a>00466 <span class="keyword">class </span>ScaleData<a name="l00467"></a>00467 {<a name="l00468"></a>00468 <span class="keyword">public</span>:<a name="l00469"></a>00469 ScaleData()<a name="l00470"></a>00470 {<a name="l00471"></a>00471 w = h = minLeft = minRight = tickOffset = 0;<a name="l00472"></a>00472 }<a name="l00473"></a>00473 <a name="l00474"></a>00474 <span class="keywordtype">int</span> w;<a name="l00475"></a>00475 <span class="keywordtype">int</span> h;<a name="l00476"></a>00476 <span class="keywordtype">int</span> minLeft;<a name="l00477"></a>00477 <span class="keywordtype">int</span> minRight;<a name="l00478"></a>00478 <span class="keywordtype">int</span> tickOffset;<a name="l00479"></a>00479 } scaleData[QwtPlot::axisCnt];<a name="l00480"></a>00480 <a name="l00481"></a>00481 <span class="keywordtype">int</span> canvasBorder[QwtPlot::axisCnt];<a name="l00482"></a>00482 <a name="l00483"></a>00483 <span class="keywordtype">int</span> axis;<a name="l00484"></a>00484 <span class="keywordflow">for</span> ( axis = 0; axis < QwtPlot::axisCnt; axis++ )<a name="l00485"></a>00485 {<a name="l00486"></a>00486 <span class="keywordflow">if</span> ( plot-><a class="code" href="class_qwt_plot.html#ac5107a1ec8836b53f084a5b1bb8cc43">axisEnabled</a>(axis) )<a name="l00487"></a>00487 {<a name="l00488"></a>00488 <span class="keyword">const</span> <a class="code" href="class_qwt_scale_widget.html">QwtScaleWidget</a> *scl = plot-><a class="code" href="class_qwt_plot.html#6b495d9b17962be6e098026441a1f7b8">axisWidget</a>(axis);<a name="l00489"></a>00489 ScaleData &sd = scaleData[axis];<a name="l00490"></a>00490 <a name="l00491"></a>00491 <span class="keyword">const</span> QSize hint = scl-><a class="code" href="class_qwt_scale_widget.html#ee41cd1b3eff4cf06559e7a36baee5a5">minimumSizeHint</a>();<a name="l00492"></a>00492 sd.w = hint.width(); <a name="l00493"></a>00493 sd.h = hint.height(); <a name="l00494"></a>00494 scl->getBorderDistHint(sd.minLeft, sd.minRight);<a name="l00495"></a>00495 sd.tickOffset = scl->margin();<a name="l00496"></a>00496 <span class="keywordflow">if</span> ( scl->scaleDraw()->hasComponent(QwtAbstractScaleDraw::Ticks) )<a name="l00497"></a>00497 sd.tickOffset += scl->scaleDraw()->majTickLength();<a name="l00498"></a>00498 }<a name="l00499"></a>00499 <a name="l00500"></a>00500 canvasBorder[axis] = plot-><a class="code" href="class_qwt_plot.html#afcc82150034fbeb393ceb9f54ba2f1a">canvas</a>()->frameWidth() +<a name="l00501"></a>00501 d_data->canvasMargin[axis] + 1;<a name="l00502"></a>00502 <a name="l00503"></a>00503 }<a name="l00504"></a>00504 <a name="l00505"></a>00505 <a name="l00506"></a>00506 <span class="keywordflow">for</span> ( axis = 0; axis < QwtPlot::axisCnt; axis++ )<a name="l00507"></a>00507 {<a name="l00508"></a>00508 ScaleData &sd = scaleData[axis];<a name="l00509"></a>00509 <span class="keywordflow">if</span> ( sd.w && (axis == QwtPlot::xBottom || axis == QwtPlot::xTop) )<a name="l00510"></a>00510 {<a name="l00511"></a>00511 if ( (sd.minLeft > canvasBorder[QwtPlot::yLeft]) <a name="l00512"></a>00512 && scaleData[QwtPlot::yLeft].w )<a name="l00513"></a>00513 {<a name="l00514"></a>00514 <span class="keywordtype">int</span> shiftLeft = sd.minLeft - canvasBorder[QwtPlot::yLeft];<a name="l00515"></a>00515 if ( shiftLeft > scaleData[QwtPlot::yLeft].w )<a name="l00516"></a>00516 shiftLeft = scaleData[QwtPlot::yLeft].w;<a name="l00517"></a>00517 <a name="l00518"></a>00518 sd.w -= shiftLeft;<a name="l00519"></a>00519 }<a name="l00520"></a>00520 <span class="keywordflow">if</span> ( (sd.minRight > canvasBorder[QwtPlot::yRight]) <a name="l00521"></a>00521 && scaleData[QwtPlot::yRight].w )<a name="l00522"></a>00522 {<a name="l00523"></a>00523 <span class="keywordtype">int</span> shiftRight = sd.minRight - canvasBorder[QwtPlot::yRight];<a name="l00524"></a>00524 if ( shiftRight > scaleData[QwtPlot::yRight].w )<a name="l00525"></a>00525 shiftRight = scaleData[QwtPlot::yRight].w;<a name="l00526"></a>00526 <a name="l00527"></a>00527 sd.w -= shiftRight;<a name="l00528"></a>00528 }<a name="l00529"></a>00529 }<a name="l00530"></a>00530 <a name="l00531"></a>00531 <span class="keywordflow">if</span> ( sd.h && (axis == QwtPlot::yLeft || axis == QwtPlot::yRight) )<a name="l00532"></a>00532 {<a name="l00533"></a>00533 if ( (sd.minLeft > canvasBorder[QwtPlot::xBottom]) &&<a name="l00534"></a>00534 scaleData[QwtPlot::xBottom].h )<a name="l00535"></a>00535 {<a name="l00536"></a>00536 <span class="keywordtype">int</span> shiftBottom = sd.minLeft - canvasBorder[QwtPlot::xBottom];<a name="l00537"></a>00537 if ( shiftBottom > scaleData[QwtPlot::xBottom].tickOffset )<a name="l00538"></a>00538 shiftBottom = scaleData[QwtPlot::xBottom].tickOffset;<a name="l00539"></a>00539 <a name="l00540"></a>00540 sd.h -= shiftBottom;<a name="l00541"></a>00541 }<a name="l00542"></a>00542 <span class="keywordflow">if</span> ( (sd.minLeft > canvasBorder[QwtPlot::xTop]) &&<a name="l00543"></a>00543 scaleData[QwtPlot::xTop].h )<a name="l00544"></a>00544 {<a name="l00545"></a>00545 <span class="keywordtype">int</span> shiftTop = sd.minRight - canvasBorder[QwtPlot::xTop];<a name="l00546"></a>00546 if ( shiftTop > scaleData[QwtPlot::xTop].tickOffset )<a name="l00547"></a>00547 shiftTop = scaleData[QwtPlot::xTop].tickOffset;<a name="l00548"></a>00548 <a name="l00549"></a>00549 sd.h -= shiftTop;<a name="l00550"></a>00550 }<a name="l00551"></a>00551 }<a name="l00552"></a>00552 }<a name="l00553"></a>00553 <a name="l00554"></a>00554 <span class="keyword">const</span> <a class="code" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> *canvas = plot-><a class="code" href="class_qwt_plot.html#afcc82150034fbeb393ceb9f54ba2f1a">canvas</a>();<a name="l00555"></a>00555 <span class="keyword">const</span> QSize minCanvasSize = canvas->minimumSize();<a name="l00556"></a>00556 <a name="l00557"></a>00557 <span class="keywordtype">int</span> w = scaleData[QwtPlot::yLeft].w + scaleData[QwtPlot::yRight].w;<a name="l00558"></a>00558 <span class="keywordtype">int</span> cw = qwtMax(scaleData[QwtPlot::xBottom].w, scaleData[QwtPlot::xTop].w)<a name="l00559"></a>00559 + 2 * (canvas->frameWidth() + 1);<a name="l00560"></a>00560 w += qwtMax(cw, minCanvasSize.width());<a name="l00561"></a>00561 <a name="l00562"></a>00562 <span class="keywordtype">int</span> h = scaleData[QwtPlot::xBottom].h + scaleData[QwtPlot::xTop].h;<a name="l00563"></a>00563 <span class="keywordtype">int</span> ch = qwtMax(scaleData[QwtPlot::yLeft].h, scaleData[QwtPlot::yRight].h)<a name="l00564"></a>00564 + 2 * (canvas->frameWidth() + 1);<a name="l00565"></a>00565 h += qwtMax(ch, minCanvasSize.height());<a name="l00566"></a>00566 <a name="l00567"></a>00567 <span class="keyword">const</span> <a class="code" href="class_qwt_text_label.html">QwtTextLabel</a> *title = plot-><a class="code" href="class_qwt_plot.html#c39356b86ed70ebf256a8ae964910206">titleLabel</a>();<a name="l00568"></a>00568 <span class="keywordflow">if</span> (title && !title->text().isEmpty())<a name="l00569"></a>00569 {<a name="l00570"></a>00570 <span class="comment">// If only QwtPlot::yLeft or QwtPlot::yRight is showing, </span><a name="l00571"></a>00571 <span class="comment">// we center on the plot canvas.</span><a name="l00572"></a>00572 <span class="keyword">const</span> <span class="keywordtype">bool</span> centerOnCanvas = !(plot-><a class="code" href="class_qwt_plot.html#ac5107a1ec8836b53f084a5b1bb8cc43">axisEnabled</a>(QwtPlot::yLeft) <a name="l00573"></a>00573 && plot-><a class="code" href="class_qwt_plot.html#ac5107a1ec8836b53f084a5b1bb8cc43">axisEnabled</a>(QwtPlot::yRight));<a name="l00574"></a>00574 <a name="l00575"></a>00575 <span class="keywordtype">int</span> titleW = w;<a name="l00576"></a>00576 <span class="keywordflow">if</span> ( centerOnCanvas )<a name="l00577"></a>00577 {<a name="l00578"></a>00578 titleW -= scaleData[QwtPlot::yLeft].w <a name="l00579"></a>00579 + scaleData[QwtPlot::yRight].w;<a name="l00580"></a>00580 }<a name="l00581"></a>00581 <a name="l00582"></a>00582 <span class="keywordtype">int</span> titleH = title-><a class="code" href="class_qwt_text_label.html#de1867a2c9308f2235cfacf675fa1d4c">heightForWidth</a>(titleW);<a name="l00583"></a>00583 <span class="keywordflow">if</span> ( titleH > titleW ) <span class="comment">// Compensate for a long title</span><a name="l00584"></a>00584 {<a name="l00585"></a>00585 w = titleW = titleH;<a name="l00586"></a>00586 <span class="keywordflow">if</span> ( centerOnCanvas )<a name="l00587"></a>00587 {<a name="l00588"></a>00588 w += scaleData[QwtPlot::yLeft].w<a name="l00589"></a>00589 + scaleData[QwtPlot::yRight].w;⌨️ 快捷键说明
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