94 lines
3.2 KiB
C++
94 lines
3.2 KiB
C++
#include "custom_layout.h"
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using namespace ui;
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ui::CSize CustomLayout::ArrangeChild(const std::vector<ui::Control*>& m_items, ui::UiRect rc)
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{
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CSize size;
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for (auto it = m_items.begin(); it != m_items.end(); it++) {
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Control* pControl = *it;
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// 即使子控件internVisible属性为false，这里也暂时强行设置为true，排版完成后恢复属性。
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// 否则无法排版被隐藏的SessionBox，在任务栏生成缩略图和预览图时需要排版后的SessionBox
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bool visible = pControl->IsInternVisible();
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pControl->SetInternVisible(true);
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CSize new_size = this->SetCustomPos(pControl, rc);
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pControl->SetInternVisible(visible);
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size.cx = max(size.cx, new_size.cx);
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size.cy = max(size.cy, new_size.cy);
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}
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return size;
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}
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CSize CustomLayout::SetCustomPos(Control* pControl, UiRect containerRect)
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{
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int childLeft = 0;
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int childRight = 0;
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int childTop = 0;
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int childBottm = 0;
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UiRect rcMargin = pControl->GetMargin();
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int iPosLeft = containerRect.left + rcMargin.left;
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int iPosRight = containerRect.right - rcMargin.right;
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int iPosTop = containerRect.top + rcMargin.top;
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int iPosBottom = containerRect.bottom - rcMargin.bottom;
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CSize szAvailable(iPosRight - iPosLeft, iPosBottom - iPosTop);
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CSize childSize = pControl->EstimateSize(szAvailable);
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if (pControl->GetFixedWidth() == DUI_LENGTH_AUTO && pControl->GetFixedHeight() == DUI_LENGTH_AUTO
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&& pControl->GetMaxWidth() == DUI_LENGTH_STRETCH) {
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int maxwidth = max(0, szAvailable.cx);
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if (childSize.cx > maxwidth) {
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pControl->SetFixedWidth(maxwidth, false);
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childSize = pControl->EstimateSize(szAvailable);
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pControl->SetFixedWidth(DUI_LENGTH_AUTO, false);
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}
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}
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if (childSize.cx == DUI_LENGTH_STRETCH) {
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childSize.cx = max(0, szAvailable.cx);
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}
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if (childSize.cx < pControl->GetMinWidth()) childSize.cx = pControl->GetMinWidth();
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if (pControl->GetMaxWidth() >= 0 && childSize.cx > pControl->GetMaxWidth()) childSize.cx = pControl->GetMaxWidth();
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if (childSize.cy == DUI_LENGTH_STRETCH) {
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childSize.cy = max(0, szAvailable.cy);
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}
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if (childSize.cy < pControl->GetMinHeight()) childSize.cy = pControl->GetMinHeight();
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if (childSize.cy > pControl->GetMaxHeight()) childSize.cy = pControl->GetMaxHeight();
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int childWidth = childSize.cx;
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int childHeight = childSize.cy;
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HorAlignType horAlignType = pControl->GetHorAlignType();
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VerAlignType verAlignType = pControl->GetVerAlignType();
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if (horAlignType == kHorAlignLeft) {
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childLeft = iPosLeft;
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childRight = childLeft + childWidth;
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}
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else if (horAlignType == kHorAlignRight) {
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childRight = iPosRight;
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childLeft = childRight - childWidth;
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}
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else if (horAlignType == kHorAlignCenter) {
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childLeft = iPosLeft + (iPosRight - iPosLeft - childWidth) / 2;
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childRight = childLeft + childWidth;
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}
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if (verAlignType == kVerAlignTop) {
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childTop = iPosTop;
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childBottm = childTop + childHeight;
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}
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else if (verAlignType == kVerAlignBottom) {
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childBottm = iPosBottom;
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childTop = childBottm - childHeight;
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}
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else if (verAlignType == kVerAlignCenter) {
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childTop = iPosTop + (iPosBottom - iPosTop - childHeight) / 2;
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childBottm = childTop + childHeight;
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}
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UiRect childPos(childLeft, childTop, childRight, childBottm);
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pControl->SetPos(childPos);
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return CSize(childPos.GetWidth(), childPos.GetHeight());
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} |