初版-带一个进度条

2026-01-24 22:42:46 +08:00
commit c367128889
100 changed files with 19726 additions and 0 deletions
--- a/sources/VListView.cpp
+++ b/sources/VListView.cpp
@@ -0,0 +1,94 @@
+#include "VListView.h"
+namespace ezui {
+	void VListView::Init()
+	{
+		this->GetScrollBar()->SetHeight(Height());//滚动条宽度
+		this->GetScrollBar()->Parent = this;
+		this->GetScrollBar()->OffsetCallback = [this](int offsetValue)->void {
+			if (this->GetScrollBar()->ScrollPos() >= 1) {
+				NextPage();
+			}
+			this->Offset(offsetValue);
+			};
+	}
+	VListView::VListView(Object* parentObject) :PagedListView(parentObject)
+	{
+		Init();
+	}
+	VListView::~VListView()
+	{
+	}
+	void VListView::OnLayout() {
+		this->Offset(0);
+		if (IsAutoHeight()) {
+			this->GetScrollBar()->SetVisible(false);
+		}
+		else if (this->GetScrollBar()->IsVisible() == true) {
+			this->GetScrollBar()->SetVisible(true);
+		}
+		this->GetScrollBar()->RefreshScroll();
+		this->EndLayout();
+	}
+
+	ScrollBar* VListView::GetScrollBar()
+	{
+		return &m_vScrollBar;
+	}
+
+	void VListView::Offset(int offset)
+	{
+		int contentWidth = 0;
+		int	_maxBottom = offset;
+		for (auto& it : GetControls()) {
+			if (it->IsVisible() == false) {
+				it->SetY(0);
+				continue;
+			}
+			{
+				//处理margin和x坐标
+				int	width = it->GetFixedWidth();
+				if (width == 0) {
+					width = this->Width() - it->Margin.GetHSpace();
+				}
+				int x = it->X();
+				if (x == 0) {
+					x = it->Margin.Left;
+				}
+				if (x == 0 && width < this->Width()) {
+					x = int((this->Width() * 1.0 - width) / 2 + 0.5);
+				}
+				_maxBottom += it->Margin.Top;
+				it->SetRect(Rect{ x,_maxBottom,width,it->Height() });
+				_maxBottom += it->Height();
+				_maxBottom += it->Margin.Bottom;
+			}
+			//计算最大宽度
+			int _width = it->X() + it->Width() + it->Margin.Right;
+			if (_width > contentWidth) {
+				contentWidth = _width;
+			}
+		}
+		this->SetContentSize({ contentWidth, _maxBottom - offset });
+	}
+
+	void VListView::OnChildPaint(PaintEventArgs& args) {
+		ViewControls.clear();
+		//绘制子控件
+		auto rect = Rect(0, 0, Width(), Height());
+		for (auto& it : GetControls()) {
+			if (rect.IntersectsWith(it->GetRect())) {
+				ViewControls.push_back(it);
+			}
+			if (it->Y() >= Height()) {
+				break;
+				////当控件超出容器底部将不再派发绘制事件 但是仍然要进行布局
+				//if (it->IsAutoHeight() && it->GetLayoutState() == LayoutState::Pend) {
+				//	it->RefreshLayout();
+				//}
+			}
+			else {
+				it->SendEvent(args);
+			}
+		}
+	}
+};