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<a name="l00339"></a>00339 w->setGeometry(itemGeometries[index]);<a name="l00340"></a>00340 index++;<a name="l00341"></a>00341 }<a name="l00342"></a>00342 }<a name="l00343"></a>00343 }<a name="l00344"></a>00344 <a name="l00353"></a><a class="code" href="class_qwt_dyn_grid_layout.html#df7cc1acc36b41086fb4815633473901">00353</a> uint <a class="code" href="class_qwt_dyn_grid_layout.html#df7cc1acc36b41086fb4815633473901">QwtDynGridLayout::columnsForWidth</a>(<span class="keywordtype">int</span> width)<span class="keyword"> const</span><a name="l00354"></a>00354 <span class="keyword"></span>{<a name="l00355"></a>00355 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_dyn_grid_layout.html#755f41277b43417d6b719704dc2c0d29">isEmpty</a>() )<a name="l00356"></a>00356 <span class="keywordflow">return</span> 0;<a name="l00357"></a>00357 <a name="l00358"></a>00358 <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="class_qwt_dyn_grid_layout.html#6ffaad457d8c9b4d423c23fb6b433299">maxCols</a> = (d_data->maxCols > 0) ? d_data->maxCols : <a class="code" href="class_qwt_dyn_grid_layout.html#d7df7a3f47055041d6dd5ab1c4c660e0">itemCount</a>();<a name="l00359"></a>00359 <span class="keywordflow">if</span> ( maxRowWidth(maxCols) <= width )<a name="l00360"></a>00360 <span class="keywordflow">return</span> maxCols;<a name="l00361"></a>00361 <a name="l00362"></a>00362 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> <a class="code" href="class_qwt_dyn_grid_layout.html#4678cd0f67c332162c266ac9661b5db6">numCols</a> = 2; <a class="code" href="class_qwt_dyn_grid_layout.html#4678cd0f67c332162c266ac9661b5db6">numCols</a> <= maxCols; <a class="code" href="class_qwt_dyn_grid_layout.html#4678cd0f67c332162c266ac9661b5db6">numCols</a>++ )<a name="l00363"></a>00363 {<a name="l00364"></a>00364 <span class="keyword">const</span> <span class="keywordtype">int</span> rowWidth = maxRowWidth(<a class="code" href="class_qwt_dyn_grid_layout.html#4678cd0f67c332162c266ac9661b5db6">numCols</a>);<a name="l00365"></a>00365 <span class="keywordflow">if</span> ( rowWidth > width )<a name="l00366"></a>00366 <span class="keywordflow">return</span> <a class="code" href="class_qwt_dyn_grid_layout.html#4678cd0f67c332162c266ac9661b5db6">numCols</a> - 1;<a name="l00367"></a>00367 }<a name="l00368"></a>00368 <a name="l00369"></a>00369 <span class="keywordflow">return</span> 1; <span class="comment">// At least 1 column</span><a name="l00370"></a>00370 }<a name="l00371"></a>00371 <a name="l00379"></a>00379 <span class="keywordtype">int</span> QwtDynGridLayout::maxRowWidth(<span class="keywordtype">int</span> numCols)<span class="keyword"> const</span><a name="l00380"></a>00380 <span class="keyword"></span>{<a name="l00381"></a>00381 <span class="keywordtype">int</span> col;<a name="l00382"></a>00382 <a name="l00383"></a>00383 QwtArray<int> colWidth(numCols);<a name="l00384"></a>00384 <span class="keywordflow">for</span> ( col = 0; col < (int)numCols; col++ )<a name="l00385"></a>00385 colWidth[col] = 0;<a name="l00386"></a>00386 <a name="l00387"></a>00387 <span class="keywordflow">if</span> ( d_data->isDirty )<a name="l00388"></a>00388 ((<a class="code" href="class_qwt_dyn_grid_layout.html">QwtDynGridLayout</a>*)<span class="keyword">this</span>)->updateLayoutCache();<a name="l00389"></a>00389 <a name="l00390"></a>00390 <span class="keywordflow">for</span> ( uint index = 0; <a name="l00391"></a>00391 index < (uint)d_data->itemSizeHints.count(); index++ )<a name="l00392"></a>00392 {<a name="l00393"></a>00393 col = index % numCols;<a name="l00394"></a>00394 colWidth[col] = qwtMax(colWidth[col], <a name="l00395"></a>00395 d_data->itemSizeHints[<span class="keywordtype">int</span>(index)].width());<a name="l00396"></a>00396 }<a name="l00397"></a>00397 <a name="l00398"></a>00398 <span class="keywordtype">int</span> rowWidth = 2 * margin() + (numCols - 1) * spacing();<a name="l00399"></a>00399 <span class="keywordflow">for</span> ( col = 0; col < (int)numCols; col++ )<a name="l00400"></a>00400 rowWidth += colWidth[col];<a name="l00401"></a>00401 <a name="l00402"></a>00402 <span class="keywordflow">return</span> rowWidth;<a name="l00403"></a>00403 }<a name="l00404"></a>00404 <a name="l00409"></a><a class="code" href="class_qwt_dyn_grid_layout.html#74ebb14c4b4fae32354d3824bf29c93e">00409</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_dyn_grid_layout.html#74ebb14c4b4fae32354d3824bf29c93e">QwtDynGridLayout::maxItemWidth</a>()<span class="keyword"> const</span><a name="l00410"></a>00410 <span class="keyword"></span>{<a name="l00411"></a>00411 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_dyn_grid_layout.html#755f41277b43417d6b719704dc2c0d29">isEmpty</a>() )<a name="l00412"></a>00412 <span class="keywordflow">return</span> 0;<a name="l00413"></a>00413 <a name="l00414"></a>00414 <span class="keywordflow">if</span> ( d_data->isDirty )<a name="l00415"></a>00415 ((<a class="code" href="class_qwt_dyn_grid_layout.html">QwtDynGridLayout</a>*)<span class="keyword">this</span>)->updateLayoutCache();<a name="l00416"></a>00416 <a name="l00417"></a>00417 <span class="keywordtype">int</span> w = 0;<a name="l00418"></a>00418 <span class="keywordflow">for</span> ( uint i = 0; i < (uint)d_data->itemSizeHints.count(); i++ )<a name="l00419"></a>00419 {<a name="l00420"></a>00420 <span class="keyword">const</span> <span class="keywordtype">int</span> itemW = d_data->itemSizeHints[<span class="keywordtype">int</span>(i)].width();<a name="l00421"></a>00421 <span class="keywordflow">if</span> ( itemW > w )<a name="l00422"></a>00422 w = itemW;<a name="l00423"></a>00423 }<a name="l00424"></a>00424 <a name="l00425"></a>00425 <span class="keywordflow">return</span> w;<a name="l00426"></a>00426 }<a name="l00427"></a>00427 <a name="l00436"></a>00436 <span class="preprocessor">#if QT_VERSION < 0x040000</span><a name="l00437"></a>00437 <span class="preprocessor"></span>QValueList<QRect> <a class="code" href="class_qwt_dyn_grid_layout.html#0fe5c2a70d1086036fac2487cc982341">QwtDynGridLayout::layoutItems</a>(<span class="keyword">const</span> QRect &rect,<a name="l00438"></a>00438 uint numCols) <span class="keyword">const</span><a name="l00439"></a>00439 <span class="preprocessor">#else</span><a name="l00440"></a><a class="code" href="class_qwt_dyn_grid_layout.html#0fe5c2a70d1086036fac2487cc982341">00440</a> <span class="preprocessor"></span>QList<QRect> <a class="code" href="class_qwt_dyn_grid_layout.html#0fe5c2a70d1086036fac2487cc982341">QwtDynGridLayout::layoutItems</a>(<span class="keyword">const</span> QRect &rect,<a name="l00441"></a>00441 uint numCols) <span class="keyword">const</span><a name="l00442"></a>00442 <span class="preprocessor">#endif</span><a name="l00443"></a>00443 <span class="preprocessor"></span>{<a name="l00444"></a>00444 <span class="preprocessor">#if QT_VERSION < 0x040000</span><a name="l00445"></a>00445 <span class="preprocessor"></span> QValueList<QRect> itemGeometries;<a name="l00446"></a>00446 <span class="preprocessor">#else</span><a name="l00447"></a>00447 <span class="preprocessor"></span> QList<QRect> itemGeometries;<a name="l00448"></a>00448 <span class="preprocessor">#endif</span><a name="l00449"></a>00449 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( numCols == 0 || isEmpty() )<a name="l00450"></a>00450 <span class="keywordflow">return</span> itemGeometries;<a name="l00451"></a>00451 <a name="l00452"></a>00452 uint numRows = itemCount() / numCols;<a name="l00453"></a>00453 <span class="keywordflow">if</span> ( numRows % itemCount() )<a name="l00454"></a>00454 numRows++;<a name="l00455"></a>00455 <a name="l00456"></a>00456 QwtArray<int> rowHeight(numRows);<a name="l00457"></a>00457 QwtArray<int> colWidth(numCols);<a name="l00458"></a>00458 <a name="l00459"></a>00459 layoutGrid(numCols, rowHeight, colWidth);<a name="l00460"></a>00460 <a name="l00461"></a>00461 <span class="keywordtype">bool</span> expandH, expandV;<a name="l00462"></a>00462 <span class="preprocessor">#if QT_VERSION >= 0x040000</span><a name="l00463"></a>00463 <span class="preprocessor"></span> expandH = expandingDirections() & Qt::Horizontal;<a name="l00464"></a>00464 expandV = expandingDirections() & Qt::Vertical;<a name="l00465"></a>00465 <span class="preprocessor">#else</span><a name="l00466"></a>00466 <span class="preprocessor"></span> expandH = expanding() & QSizePolicy::Horizontally;<a name="l00467"></a>00467 expandV = expanding() & QSizePolicy::Vertically;<a name="l00468"></a>00468 <span class="preprocessor">#endif</span><a name="l00469"></a>00469 <span class="preprocessor"></span><a name="l00470"></a>00470 <span class="keywordflow">if</span> ( expandH || expandV )<a name="l00471"></a>00471 stretchGrid(rect, numCols, rowHeight, colWidth);<a name="l00472"></a>00472 <a name="l00473"></a>00473 <a class="code" href="class_qwt_dyn_grid_layout.html">QwtDynGridLayout</a> *that = (<a class="code" href="class_qwt_dyn_grid_layout.html">QwtDynGridLayout</a> *)<span class="keyword">this</span>;<a name="l00474"></a>00474 <span class="keyword">const</span> <span class="keywordtype">int</span> maxCols = d_data->maxCols;<a name="l00475"></a>00475 that-><a class="code" href="class_qwt_dyn_grid_layout.html#1a671a26ef8060bbb7306f90837f0a00">d_data</a>->maxCols = numCols;<a name="l00476"></a>00476 <span class="keyword">const</span> QRect alignedRect = alignmentRect(rect);<a name="l00477"></a>00477 that-><a class="code" href="class_qwt_dyn_grid_layout.html#1a671a26ef8060bbb7306f90837f0a00">d_data</a>->maxCols = maxCols;<a name="l00478"></a>00478 <a name="l00479"></a>00479 <span class="keyword">const</span> <span class="keywordtype">int</span> xOffset = expandH ? 0 : alignedRect.x();<a name="l00480"></a>00480 <span class="keyword">const</span> <span class="keywordtype">int</span> yOffset = expandV ? 0 : alignedRect.y();<a name="l00481"></a>00481 <a name="l00482"></a>00482 QwtArray<int> colX(numCols);<a name="l00483"></a>00483 QwtArray<int> rowY(numRows);<a name="l00484"></a>00484 <a name="l00485"></a>00485 <span class="keyword">const</span> <span class="keywordtype">int</span> xySpace = spacing();<a name="l00486"></a>00486 <a name="l00487"></a>00487 rowY[0] = yOffset + margin();<a name="l00488"></a>00488 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> r = 1; r < (int)numRows; r++ )<a name="l00489"></a>00489 rowY[r] = rowY[r-1] + rowHeight[r-1] + xySpace;<a name="l00490"></a>00490 <a name="l00491"></a>00491 colX[0] = xOffset + margin();<a name="l00492"></a>00492 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> c = 1; c < (int)numCols; c++ )<a name="l00493"></a>00493 colX[c] = colX[c-1] + colWidth[c-1] + xySpace;<a name="l00494"></a>00494 <a name="l00495"></a>00495 <span class="keyword">const</span> <span class="keywordtype">int</span> itemCount = d_data->itemList.size();<a name="l00496"></a>00496 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < itemCount; i++ )<a name="l00497"></a>00497 {<a name="l00498"></a>00498 <span class="keyword">const</span> <span class="keywordtype">int</span> row = i / numCols;<a name="l00499"></a>00499 <span class="keyword">const</span> <span class="keywordtype">int</span> col = i % numCols;<a name="l00500"></a>00500 <a name="l00501"></a>00501 QRect itemGeometry(colX[col], rowY[row], <a name="l00502"></a>00502 colWidth[col], rowHeight[row]);<a name="l00503"></a>00503 itemGeometries.append(itemGeometry);<a name="l00504"></a>00504 }<a name="l00505"></a>00505 <a name="l00506"></a>00506 <span class="keywordflow">return</span> itemGeometries;<a name="l00507"></a>00507 }<a name="l00508"></a>00508 <a name="l00509"></a>00509 <a name="l00518"></a><a class="code" href="class_qwt_dyn_grid_layout.html#cbf0033801a9c0464fedb56b32d3f783">00518</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_dyn_grid_layout.html#cbf0033801a9c0464fedb56b32d3f783">QwtDynGridLayout::layoutGrid</a>(uint numCols, ⌨️ 快捷键说明
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