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/Label.cpp
+++ b/sources/Label.cpp
@@ -0,0 +1,161 @@
+#include "Label.h"
+namespace ezui {
+	Label::Label(Object* parentObject) :Control(parentObject)
+	{
+	}
+	Label::~Label() {}
+	void Label::OnDpiChange(const DpiChangeEventArgs& args) {
+		if (args.Scale != this->GetScale()) {
+			this->TextMargin.Scale(args.Scale / this->GetScale());
+		}
+		__super::OnDpiChange(args);
+	}
+
+	void Label::OnForePaint(PaintEventArgs& args)
+	{
+		__super::OnForePaint(args);
+		if (!m_wstr.empty()) {
+			int maxWidth = Width() - this->TextMargin.GetHSpace();
+			int maxHeight = Height() - this->TextMargin.GetVSpace();
+			std::wstring drawText(m_wstr);
+			std::wstring fontFamily = GetFontFamily();
+			auto fontSize = GetFontSize();
+			if (fontSize == 0)return;
+			Font font(fontFamily, fontSize);
+			args.Graphics.SetFont(font);
+			args.Graphics.SetColor(GetForeColor());
+			const std::wstring& wEllipsisText = m_ellipsisText;
+			if (!wEllipsisText.empty()) { //水平文本溢出的显示方案
+				Size ellipsisTextSize;
+				{
+					TextLayout textLayout(wEllipsisText, font);
+					ellipsisTextSize = textLayout.GetFontBox();
+				}
+				TextLayout textLayout(m_wstr, font);
+
+				if (textLayout.GetFontBox().Width > maxWidth) {//当文字显示超出的时候 宽度
+					int pos = 0;
+					BOOL isTrailingHit;
+					int fontHeight;
+					textLayout.HitTestPoint({ maxWidth,0 }, &pos, &isTrailingHit, &fontHeight);//对文字进行命中测试
+					drawText.erase(pos);
+					while (drawText.size() > 0)
+					{
+						//从最后往前删除文字 直到可以显示正常为止
+						drawText.erase(drawText.size() - 1, 1);
+						TextLayout textLayout(drawText, font);
+						if (textLayout.GetFontBox().Width + ellipsisTextSize.Width < maxWidth) {
+							drawText.append(wEllipsisText);
+							break;
+						}
+					}
+				}
+			}
+			std::wstring viewStr = !drawText.empty() ? drawText : wEllipsisText;
+			TextLayout textLayout(viewStr, font, SizeF(maxWidth, maxHeight), (IsAutoWidth() && IsAutoHeight()) ? TextAlign::TopLeft : this->TextAlign);
+			if (this->m_underlineCount != 0) {//下划线
+				textLayout.SetUnderline(m_underlinePos, m_underlineCount);
+			}
+			args.Graphics.DrawTextLayout(textLayout, { (float)this->TextMargin.Left,(float)this->TextMargin.Top });
+		}
+	}
+
+	void Label::SetAttribute(const UIString& key, const UIString& value) {
+		do
+		{
+			if (key == "valign" || key == "align") {
+				this->TextAlign = ezui::TextAlign((int)this->TextAlign & ~(int)VAlign::Top);
+				this->TextAlign = ezui::TextAlign((int)this->TextAlign & ~(int)VAlign::Mid);
+				this->TextAlign = ezui::TextAlign((int)this->TextAlign & ~(int)VAlign::Bottom);
+				VAlign v = VAlign::Mid;
+				if (value == "top") {
+					v = VAlign::Top;
+				}
+				else if (value == "bottom") {
+					v = VAlign::Bottom;
+				}
+				this->TextAlign = ezui::TextAlign((int)this->TextAlign | (int)v);
+				break;
+			}
+			if (key == "halign" || key == "align") {
+				this->TextAlign = ezui::TextAlign((int)this->TextAlign & ~(int)HAlign::Left);
+				this->TextAlign = ezui::TextAlign((int)this->TextAlign & ~(int)HAlign::Center);
+				this->TextAlign = ezui::TextAlign((int)this->TextAlign & ~(int)HAlign::Right);
+				HAlign h = HAlign::Center;
+				if (value == "left") {
+					h = HAlign::Left;
+				}
+				else if (value == "right") {
+					h = HAlign::Right;
+				}
+				this->TextAlign = ezui::TextAlign((int)this->TextAlign | (int)h);
+				break;
+			}
+			if (key == "text") {
+				this->SetText(value);
+				break;
+			}
+			if (key == "underline") {
+				size_t pos = value.find(",");
+				this->m_underlinePos = std::atoi(value.substr(0, pos + 1).c_str());
+				this->m_underlineCount = std::atoi(value.substr(pos + 1, pos).c_str());
+				break;
+			}
+			if (key == "ellipsis") {
+				this->SetElidedText(value);
+				break;
+			}
+		} while (false);
+		__super::SetAttribute(key, value);
+	}
+	void Label::RefreshLayout()
+	{
+		//比较特殊需要屏蔽
+		this->OnLayout();
+	}
+	void Label::OnLayout() {
+		__super::OnLayout();
+		if (IsAutoWidth() || IsAutoHeight()) {
+
+			auto fontSize = GetFontSize();
+			if (fontSize == 0)return;
+			Font font(GetFontFamily(), fontSize);
+
+			int maxWidth = IsAutoWidth() ? EZUI_FLOAT_MAX : Width() - this->TextMargin.GetHSpace();
+			int maxHeight = IsAutoHeight() ? EZUI_FLOAT_MAX : Height() - this->TextMargin.GetVSpace();
+
+			TextLayout text(this->m_wstr, font, SizeF(maxWidth, maxHeight));
+			Size box = text.GetFontBox();
+			this->SetContentSize(box);
+			if (IsAutoWidth()) {
+				this->SetFixedWidth(box.Width + this->TextMargin.GetHSpace());
+				if (Parent) {
+					Parent->RefreshLayout();
+				}
+			}
+			if (IsAutoHeight()) {
+				this->SetFixedHeight(box.Height + this->TextMargin.GetVSpace());
+				if (Parent) {
+					Parent->RefreshLayout();
+				}
+			}
+		}
+	}
+	void Label::SetText(const UIString& text) {
+		m_wstr = text.unicode();
+		this->TryPendLayout();
+	}
+	void Label::SetUnderline(int pos, int count)
+	{
+		this->m_underlinePos = pos;
+		this->m_underlineCount = count;
+	}
+	UIString Label::GetText()const
+	{
+		return UIString(m_wstr);
+	}
+	void Label::SetElidedText(const UIString& text)
+	{
+		this->m_ellipsisText = text.unicode();
+	}
+};