停靠布局、背景图片、无边框窗体;运行区按比例缩小、可放大
- Dock:和 WinForms 一样按 Controls 倒序依次停靠,扣掉 Panel 边框、GroupBox 标题占的地方; 改大小、显示隐藏、加入移出控件时重新布局;SuspendLayout / ResumeLayout / PerformLayout - 设计器里每次修改后按同样的规则排好停靠的控件(designer/layout.ts);属性窗口加"停靠" - BackgroundImage + BackgroundImageLayout(平铺、居中、拉伸、缩放):窗体、面板、图片框, 设计器里从项目资源选;无边框窗体没有标题栏,大小不含边框 - 背景色沿用父控件:没设背景色的标签、面板、分组框等画父控件的背景色(不是背景图片), 和 WinForms 一样;分组框标题处边框断开、透出背景;文本框的 BackColor 生效 - 图片框可以放子控件,把鼠标按下、松开发给程序 - 运行区:窗体比运行区大时整体按比例缩小并显示比例;"放大"占满整个网页(窗体在左、实训台在右),Esc 还原 - Paint 事件:VS 双击面板生成的空 panel1_Paint 能编译(平台由浏览器绘制,不触发) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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@@ -43,7 +43,21 @@ public class Panel : ScrollableControl
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public BorderStyle BorderStyle
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{
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get => _borderStyle;
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set => SetProp(ref _borderStyle, value, nameof(BorderStyle));
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set
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{
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if (SetProp(ref _borderStyle, value, nameof(BorderStyle))) PerformLayout();
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}
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}
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/// <summary>边框占掉的宽度:单线 1 像素,立体 2 像素</summary>
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public override Rectangle DisplayRectangle
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{
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get
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{
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var inset = _borderStyle switch { BorderStyle.FixedSingle => 1, BorderStyle.Fixed3D => 2, _ => 0 };
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var rect = base.DisplayRectangle;
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return new Rectangle(rect.X, rect.Y, Math.Max(0, rect.Width - 2 * inset), Math.Max(0, rect.Height - 2 * inset));
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}
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}
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protected override void WriteProps(JsonObject props)
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@@ -58,4 +72,14 @@ public class GroupBox : Control
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protected override Size DefaultSize => new(200, 100);
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public FlatStyle FlatStyle { get; set; } = FlatStyle.Standard;
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/// <summary>分组框的边框和标题占掉的地方(宋体 9pt 时和 WinForms 一致)</summary>
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public override Rectangle DisplayRectangle
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{
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get
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{
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var rect = base.DisplayRectangle;
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return new Rectangle(rect.X + 3, rect.Y + 17, Math.Max(0, rect.Width - 6), Math.Max(0, rect.Height - 20));
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}
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}
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}
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