92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
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#include "VLayout.h"
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namespace ezui {
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VLayout::VLayout(Object* parentObject) :Control(parentObject)
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{
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}
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void VLayout::SetAttribute(const UIString& key, const UIString& value)
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{
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if (key == "halign" || key == "align") {
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if (value == "left") {
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ContentAlign = HAlign::Left;
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}
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else if (value == "right") {
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ContentAlign = HAlign::Right;
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}
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}
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__super::SetAttribute(key, value);
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}
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VLayout::~VLayout()
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{
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}
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void VLayout::OnLayout()
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{
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int contentWidth = 0;
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int fixedHeight = 0;
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int fixedTotal = 0;
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int count = 0;//可见控件总数
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for (auto& it : GetControls()) {
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if ((it->IsAutoWidth() || it->IsAutoHeight()) && it->IsPendLayout()) {
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it->RefreshLayout();
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}
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if (it->IsVisible() == false || (it->IsAutoHeight() && it->GetFixedHeight() <= 0))continue;
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++count;
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auto height = it->GetFixedHeight();
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if (height > 0) {
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fixedHeight += height;
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++fixedTotal;
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}
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fixedHeight += +it->Margin.GetVSpace();
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}
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int autoTotal = count - fixedTotal;
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if (autoTotal == 0) {
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//return;
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}
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double otherHeight = Height() * 1.0 - fixedHeight;
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double autoHeight = otherHeight / autoTotal;
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double maxBottom = 0;
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//排序
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for (auto& it : GetControls()) {
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if (it->IsVisible() == false)continue;
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maxBottom += it->Margin.Top;
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int width = it->GetFixedWidth();
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int x = it->X();
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if (width == 0) {
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//当控件未指定绝对宽度的时候
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width = this->Width() - it->Margin.GetHSpace();
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x = it->Margin.Left;
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}
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else {
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//当控件指定了绝对宽度的时候
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if (ContentAlign == HAlign::Left) {
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x = it->Margin.Left;
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}
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else if (ContentAlign == HAlign::Center) {
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x = int((this->Width() * 1.0 - width) / 2.0f + 0.5);
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}
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else if (ContentAlign == HAlign::Right) {
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x = this->Width() - it->Margin.Right - width;
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}
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}
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if (it->GetFixedHeight() > 0 || it->IsAutoHeight()) {
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it->SetRect({ x, (int)maxBottom,width, it->GetFixedHeight() });
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maxBottom += it->Height();
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}
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else {
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it->SetRect({ x ,(int)maxBottom,width ,(int)autoHeight });
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maxBottom += it->Height();
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}
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maxBottom += it->Margin.Bottom;
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//统计上下文宽高
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int maxRight = it->GetRect().GetRight() + it->Margin.Right;
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if (maxRight > contentWidth) {
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contentWidth = maxRight;
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}
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this->SetContentSize({ contentWidth ,(int)(maxBottom + 0.5) });
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}
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}
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};
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