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<a name="l00519"></a>00519 QwtArray<int>& rowHeight, QwtArray<int>& colWidth)<span class="keyword"> const</span><a name="l00520"></a>00520 <span class="keyword"></span>{<a name="l00521"></a>00521 <span class="keywordflow">if</span> ( numCols <= 0 )<a name="l00522"></a>00522 <span class="keywordflow">return</span>;<a name="l00523"></a>00523 <a name="l00524"></a>00524 <span class="keywordflow">if</span> ( d_data->isDirty )<a name="l00525"></a>00525 ((<a class="code" href="class_qwt_dyn_grid_layout.html">QwtDynGridLayout</a>*)<span class="keyword">this</span>)->updateLayoutCache();<a name="l00526"></a>00526 <a name="l00527"></a>00527 <span class="keywordflow">for</span> ( uint index = 0; <a name="l00528"></a>00528 index < (uint)d_data->itemSizeHints.count(); index++ )<a name="l00529"></a>00529 {<a name="l00530"></a>00530 <span class="keyword">const</span> <span class="keywordtype">int</span> row = index / numCols;<a name="l00531"></a>00531 <span class="keyword">const</span> <span class="keywordtype">int</span> col = index % numCols;<a name="l00532"></a>00532 <a name="l00533"></a>00533 <span class="keyword">const</span> QSize &size = d_data->itemSizeHints[int(index)];<a name="l00534"></a>00534 <a name="l00535"></a>00535 rowHeight[row] = (col == 0) <a name="l00536"></a>00536 ? size.height() : qwtMax(rowHeight[row], size.height());<a name="l00537"></a>00537 colWidth[col] = (row == 0) <a name="l00538"></a>00538 ? size.width() : qwtMax(colWidth[col], size.width());<a name="l00539"></a>00539 }<a name="l00540"></a>00540 }<a name="l00541"></a>00541 <a name="l00547"></a><a class="code" href="class_qwt_dyn_grid_layout.html#e8867d543d54d5da9657c55b3c329d8e">00547</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_dyn_grid_layout.html#e8867d543d54d5da9657c55b3c329d8e">QwtDynGridLayout::hasHeightForWidth</a>()<span class="keyword"> const</span><a name="l00548"></a>00548 <span class="keyword"></span>{<a name="l00549"></a>00549 <span class="keywordflow">return</span> <span class="keyword">true</span>;<a name="l00550"></a>00550 }<a name="l00551"></a>00551 <a name="l00557"></a><a class="code" href="class_qwt_dyn_grid_layout.html#fa3fd53b485e9f1ed90796ff923466f1">00557</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_dyn_grid_layout.html#fa3fd53b485e9f1ed90796ff923466f1">QwtDynGridLayout::heightForWidth</a>(<span class="keywordtype">int</span> width)<span class="keyword"> const</span><a name="l00558"></a>00558 <span class="keyword"></span>{<a name="l00559"></a>00559 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_dyn_grid_layout.html#755f41277b43417d6b719704dc2c0d29">isEmpty</a>() )<a name="l00560"></a>00560 <span class="keywordflow">return</span> 0;<a name="l00561"></a>00561 <a name="l00562"></a>00562 <span class="keyword">const</span> uint numCols = <a class="code" href="class_qwt_dyn_grid_layout.html#df7cc1acc36b41086fb4815633473901">columnsForWidth</a>(width);<a name="l00563"></a>00563 uint <a class="code" href="class_qwt_dyn_grid_layout.html#d3f387078e5e78b66b452c72e99923c2">numRows</a> = <a class="code" href="class_qwt_dyn_grid_layout.html#d7df7a3f47055041d6dd5ab1c4c660e0">itemCount</a>() / numCols;<a name="l00564"></a>00564 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_dyn_grid_layout.html#d7df7a3f47055041d6dd5ab1c4c660e0">itemCount</a>() % numCols )<a name="l00565"></a>00565 numRows++;<a name="l00566"></a>00566 <a name="l00567"></a>00567 QwtArray<int> rowHeight(numRows);<a name="l00568"></a>00568 QwtArray<int> colWidth(numCols);<a name="l00569"></a>00569 <a name="l00570"></a>00570 <a class="code" href="class_qwt_dyn_grid_layout.html#cbf0033801a9c0464fedb56b32d3f783">layoutGrid</a>(numCols, rowHeight, colWidth);<a name="l00571"></a>00571 <a name="l00572"></a>00572 <span class="keywordtype">int</span> h = 2 * margin() + (numRows - 1) * spacing();<a name="l00573"></a>00573 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> row = 0; row < (int)numRows; row++ )<a name="l00574"></a>00574 h += rowHeight[row];<a name="l00575"></a>00575 <a name="l00576"></a>00576 <span class="keywordflow">return</span> h;<a name="l00577"></a>00577 }<a name="l00578"></a>00578 <a name="l00586"></a><a class="code" href="class_qwt_dyn_grid_layout.html#ee71c314a421165f80fa724a59c2c899">00586</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_dyn_grid_layout.html#ee71c314a421165f80fa724a59c2c899">QwtDynGridLayout::stretchGrid</a>(<span class="keyword">const</span> QRect &rect, <a name="l00587"></a>00587 uint numCols, QwtArray<int>& rowHeight, QwtArray<int>& colWidth)<span class="keyword"> const</span><a name="l00588"></a>00588 <span class="keyword"></span>{<a name="l00589"></a>00589 <span class="keywordflow">if</span> ( numCols == 0 || <a class="code" href="class_qwt_dyn_grid_layout.html#755f41277b43417d6b719704dc2c0d29">isEmpty</a>() )<a name="l00590"></a>00590 <span class="keywordflow">return</span>;<a name="l00591"></a>00591 <a name="l00592"></a>00592 <span class="keywordtype">bool</span> expandH, expandV;<a name="l00593"></a>00593 <span class="preprocessor">#if QT_VERSION >= 0x040000</span><a name="l00594"></a>00594 <span class="preprocessor"></span> expandH = <a class="code" href="class_qwt_dyn_grid_layout.html#1340bdbdaf09f79ac9e80f96f1b8b106">expandingDirections</a>() & Qt::Horizontal;<a name="l00595"></a>00595 expandV = <a class="code" href="class_qwt_dyn_grid_layout.html#1340bdbdaf09f79ac9e80f96f1b8b106">expandingDirections</a>() & Qt::Vertical;<a name="l00596"></a>00596 <span class="preprocessor">#else</span><a name="l00597"></a>00597 <span class="preprocessor"></span> expandH = expanding() & QSizePolicy::Horizontally;<a name="l00598"></a>00598 expandV = expanding() & QSizePolicy::Vertically;<a name="l00599"></a>00599 <span class="preprocessor">#endif</span><a name="l00600"></a>00600 <span class="preprocessor"></span><a name="l00601"></a>00601 <span class="keywordflow">if</span> ( expandH )<a name="l00602"></a>00602 {<a name="l00603"></a>00603 <span class="keywordtype">int</span> xDelta = rect.width() - 2 * margin() - (numCols - 1) * spacing();<a name="l00604"></a>00604 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> col = 0; col < (int)numCols; col++ )<a name="l00605"></a>00605 xDelta -= colWidth[col];<a name="l00606"></a>00606 <a name="l00607"></a>00607 <span class="keywordflow">if</span> ( xDelta > 0 )<a name="l00608"></a>00608 {<a name="l00609"></a>00609 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> col = 0; col < (int)numCols; col++ )<a name="l00610"></a>00610 {<a name="l00611"></a>00611 <span class="keyword">const</span> <span class="keywordtype">int</span> space = xDelta / (numCols - col);<a name="l00612"></a>00612 colWidth[col] += space;<a name="l00613"></a>00613 xDelta -= space;<a name="l00614"></a>00614 }<a name="l00615"></a>00615 }<a name="l00616"></a>00616 }<a name="l00617"></a>00617 <a name="l00618"></a>00618 <span class="keywordflow">if</span> ( expandV )<a name="l00619"></a>00619 {<a name="l00620"></a>00620 uint numRows = itemCount() / numCols;<a name="l00621"></a>00621 <span class="keywordflow">if</span> ( itemCount() % numCols )<a name="l00622"></a>00622 numRows++;<a name="l00623"></a>00623 <a name="l00624"></a>00624 <span class="keywordtype">int</span> yDelta = rect.height() - 2 * margin() - (numRows - 1) * spacing();<a name="l00625"></a>00625 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> row = 0; row < (int)numRows; row++ )<a name="l00626"></a>00626 yDelta -= rowHeight[row];<a name="l00627"></a>00627 <a name="l00628"></a>00628 <span class="keywordflow">if</span> ( yDelta > 0 )<a name="l00629"></a>00629 {<a name="l00630"></a>00630 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> row = 0; row < (int)numRows; row++ )<a name="l00631"></a>00631 {<a name="l00632"></a>00632 <span class="keyword">const</span> <span class="keywordtype">int</span> space = yDelta / (numRows - row);<a name="l00633"></a>00633 rowHeight[row] += space;<a name="l00634"></a>00634 yDelta -= space;<a name="l00635"></a>00635 }<a name="l00636"></a>00636 }<a name="l00637"></a>00637 }<a name="l00638"></a>00638 }<a name="l00639"></a>00639 <a name="l00647"></a><a class="code" href="class_qwt_dyn_grid_layout.html#fed46e3a8e1b6e67dcf62eca0bc948d6">00647</a> QSize <a class="code" href="class_qwt_dyn_grid_layout.html#fed46e3a8e1b6e67dcf62eca0bc948d6">QwtDynGridLayout::sizeHint</a>()<span class="keyword"> const</span><a name="l00648"></a>00648 <span class="keyword"></span>{<a name="l00649"></a>00649 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_dyn_grid_layout.html#755f41277b43417d6b719704dc2c0d29">isEmpty</a>() )<a name="l00650"></a>00650 <span class="keywordflow">return</span> QSize();<a name="l00651"></a>00651 <a name="l00652"></a>00652 <span class="keyword">const</span> uint numCols = (d_data->maxCols > 0 ) ? d_data->maxCols : <a class="code" href="class_qwt_dyn_grid_layout.html#d7df7a3f47055041d6dd5ab1c4c660e0">itemCount</a>();<a name="l00653"></a>00653 uint <a class="code" href="class_qwt_dyn_grid_layout.html#d3f387078e5e78b66b452c72e99923c2">numRows</a> = <a class="code" href="class_qwt_dyn_grid_layout.html#d7df7a3f47055041d6dd5ab1c4c660e0">itemCount</a>() / numCols;<a name="l00654"></a>00654 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_dyn_grid_layout.html#d7df7a3f47055041d6dd5ab1c4c660e0">itemCount</a>() % numCols )<a name="l00655"></a>00655 numRows++;<a name="l00656"></a>00656 <a name="l00657"></a>00657 QwtArray<int> rowHeight(numRows);<a name="l00658"></a>00658 QwtArray<int> colWidth(numCols);<a name="l00659"></a>00659 <a name="l00660"></a>00660 <a class="code" href="class_qwt_dyn_grid_layout.html#cbf0033801a9c0464fedb56b32d3f783">layoutGrid</a>(numCols, rowHeight, colWidth);<a name="l00661"></a>00661 <a name="l00662"></a>00662 <span class="keywordtype">int</span> h = 2 * margin() + (numRows - 1) * spacing();<a name="l00663"></a>00663 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> row = 0; row < (int)numRows; row++ )<a name="l00664"></a>00664 h += rowHeight[row];<a name="l00665"></a>00665 <a name="l00666"></a>00666 <span class="keywordtype">int</span> w = 2 * margin() + (numCols - 1) * spacing(); <a name="l00667"></a>00667 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> col = 0; col < (int)numCols; col++ )<a name="l00668"></a>00668 w += colWidth[col];<a name="l00669"></a>00669 <a name="l00670"></a>00670 <span class="keywordflow">return</span> QSize(w, h);<a name="l00671"></a>00671 }<a name="l00672"></a>00672 <a name="l00678"></a><a class="code" href="class_qwt_dyn_grid_layout.html#d3f387078e5e78b66b452c72e99923c2">00678</a> uint <a class="code" href="class_qwt_dyn_grid_layout.html#d3f387078e5e78b66b452c72e99923c2">QwtDynGridLayout::numRows</a>()<span class="keyword"> const </span><a name="l00679"></a>00679 <span class="keyword"></span>{ <a name="l00680"></a>00680 <span class="keywordflow">return</span> d_data->numRows; <a name="l00681"></a>00681 }<a name="l00682"></a>00682 <a name="l00688"></a><a class="code" href="class_qwt_dyn_grid_layout.html#4678cd0f67c332162c266ac9661b5db6">00688</a> uint <a class="code" href="class_qwt_dyn_grid_layout.html#4678cd0f67c332162c266ac9661b5db6">QwtDynGridLayout::numCols</a>()<span class="keyword"> const </span><a name="l00689"></a>00689 <span class="keyword"></span>{ <a name="l00690"></a>00690 <span class="keywordflow">return</span> d_data->numCols; <a name="l00691"></a>00691 }</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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