/// <summary> /// 布局文本和图片,每调用一次,执行一次布局操作 /// </summary> /// <param name="layout">布局对象</param> public static void LayoutTextAndImage(LayoutData layout) { if (((layout.ImageSize == Size.Empty) || (layout.Text == null)) || ((layout.Text.Length == 0) || (layout.CurrentTextImageRelation == TextImageRelation.Overlay))) { Size imageSize = layout.ImageSize; Size textSize = GetTextSize(layout, layout.CurrentClientRectangle.Size); layout.OutImageBounds = LayoutUtils.Align(imageSize, layout.CurrentClientRectangle, layout.CurrentImageAlign); layout.OutTextBounds = LayoutUtils.Align(textSize, layout.CurrentClientRectangle, layout.CurrentTextAlign); } else { Size proposedSize = LayoutUtils.SubAlignedRegion(layout.CurrentClientRectangle.Size, layout.ImageSize, layout.CurrentTextImageRelation); //减去图片空间后的大小 Size textSize = GetTextSize(layout, proposedSize); //文本大小 Size textImageSize = LayoutUtils.AddAlignedRegion(textSize, layout.ImageSize, layout.CurrentTextImageRelation); //两个大小相加 Rectangle containerRect = layout.CurrentClientRectangle; //能包含layout.CurrentClientRectangle,textImageSize的最小容器 containerRect.Size = LayoutUtils.UnionSizes(layout.CurrentClientRectangle.Size, textImageSize); //获取两个Size中的最大值(分别计算宽和高) Rectangle textImageRect = LayoutUtils.Align(textImageSize, containerRect, ContentAlignment.MiddleCenter); //居中 bool imageNoOverlay = (ImageAlignToRelation(layout.CurrentImageAlign) & layout.CurrentTextImageRelation) != TextImageRelation.Overlay; bool textNoOverlay = (TextAlignToRelation(layout.CurrentTextAlign) & layout.CurrentTextImageRelation) != TextImageRelation.Overlay; Rectangle imageBounds; Rectangle textBounds; if (imageNoOverlay) { LayoutUtils.SplitRegion(containerRect, layout.ImageSize, (AnchorStyles)layout.CurrentTextImageRelation, out imageBounds, out textBounds); } else if (textNoOverlay) { LayoutUtils.SplitRegion(containerRect, textSize, (AnchorStyles)LayoutUtils.GetOppositeTextImageRelation(layout.CurrentTextImageRelation), out textBounds, out imageBounds); } else { LayoutUtils.SplitRegion(textImageRect, layout.ImageSize, (AnchorStyles)layout.CurrentTextImageRelation, out imageBounds, out textBounds); LayoutUtils.ExpandRegionsToFillBounds(containerRect, (AnchorStyles)layout.CurrentTextImageRelation, ref imageBounds, ref textBounds);//扩展 } layout.OutImageBounds = LayoutUtils.Align(layout.ImageSize, imageBounds, layout.CurrentImageAlign); layout.OutTextBounds = LayoutUtils.Align(textSize, textBounds, layout.CurrentTextAlign); } //调整 switch (layout.CurrentTextImageRelation) { case TextImageRelation.TextBeforeImage: case TextImageRelation.ImageBeforeText: { int num = Math.Min(layout.OutTextBounds.Bottom, layout.CurrentClientRectangle.Bottom); layout.OutTextBounds.Y = Math.Max(Math.Min(layout.OutTextBounds.Y, layout.CurrentClientRectangle.Y + ((layout.CurrentClientRectangle.Height - layout.OutTextBounds.Height) / 2)), layout.CurrentClientRectangle.Y); layout.OutTextBounds.Height = num - layout.OutTextBounds.Y; break; } case TextImageRelation.TextAboveImage: case TextImageRelation.ImageAboveText: { int num2 = Math.Min(layout.OutTextBounds.Right, layout.CurrentClientRectangle.Right); layout.OutTextBounds.X = Math.Max(Math.Min(layout.OutTextBounds.X, layout.CurrentClientRectangle.X + ((layout.CurrentClientRectangle.Width - layout.OutTextBounds.Width) / 2)), layout.CurrentClientRectangle.X); layout.OutTextBounds.Width = num2 - layout.OutTextBounds.X; break; } default: break; } if ((layout.CurrentTextImageRelation == TextImageRelation.ImageBeforeText) && (layout.OutImageBounds.Size.Width != 0)) { layout.OutImageBounds.Width = Math.Max(0, Math.Min(layout.CurrentClientRectangle.Width - layout.OutTextBounds.Width, layout.OutImageBounds.Width)); layout.OutTextBounds.X = layout.OutImageBounds.X + layout.OutImageBounds.Width; } if ((layout.CurrentTextImageRelation == TextImageRelation.ImageAboveText) && (layout.OutImageBounds.Size.Height != 0)) { layout.OutImageBounds.Height = Math.Max(0, Math.Min(layout.CurrentClientRectangle.Height - layout.OutTextBounds.Height, layout.OutImageBounds.Height)); layout.OutTextBounds.Y = layout.OutImageBounds.Y + layout.OutImageBounds.Height; } layout.OutTextBounds = Rectangle.Intersect(layout.OutTextBounds, layout.CurrentClientRectangle); // int num3 = Math.Min(layout.OutTextBounds.Bottom, layout.CurrentClientRectangle.Bottom); layout.OutTextBounds.Y = Math.Max(layout.OutTextBounds.Y, layout.CurrentClientRectangle.Y); layout.OutTextBounds.Height = num3 - layout.OutTextBounds.Y; //偏移 layout.OutImageBounds.Offset(layout.ImageOffset); layout.OutTextBounds.Offset(layout.TextOffset); }
/// <summary> /// 测试文本大小 /// </summary> /// <param name="layout">布局对象</param> /// <param name="proposedSize">可提供的大小</param> /// <returns>文本大小</returns> public static Size GetTextSize(LayoutData layout, Size proposedSize) { return(Size.Ceiling(layout.Graphics.MeasureString(layout.Text, layout.Font, new SizeF((float)proposedSize.Width, (float)proposedSize.Height), layout.CurrentStringFormat))); }