internal void RenderBackgroundInternal(Graphics g, Rectangle rect, Color baseColor, Color borderColor, Color innerBorderColor, RoundStyle style, int roundWidth, float basePosition, bool drawBorder, bool drawGlass, LinearGradientMode mode) { if (drawBorder) { rect.Width--; rect.Height--; } using (LinearGradientBrush brush = new LinearGradientBrush(rect, Color.Transparent, Color.Transparent, mode)) { Color[] colors = new Color[4]; colors[0] = GetColor(baseColor, 0, 35, 24, 9); colors[1] = GetColor(baseColor, 0, 13, 8, 3); colors[2] = baseColor; colors[3] = GetColor(baseColor, 0, 68, 69, 54); ColorBlend blend = new ColorBlend(); blend.Positions = new float[] { 0.0f, basePosition, basePosition + 0.05f, 1.0f }; blend.Colors = colors; brush.InterpolationColors = blend; if (style != RoundStyle.None) { using (GraphicsPath path = GraphicsPathHelper.CreateFilletRectangle(rect, roundWidth, style, false)) { g.FillPath(brush, path); } if (baseColor.A > 80) { Rectangle rectTop = rect; if (mode == LinearGradientMode.Vertical) { rectTop.Height = (int)(rectTop.Height * basePosition); } else { rectTop.Width = (int)(rect.Width * basePosition); } using (GraphicsPath pathTop = GraphicsPathHelper.CreateFilletRectangle( rectTop, roundWidth, RoundStyle.Top, false)) { using (SolidBrush brushAlpha = new SolidBrush(Color.FromArgb(80, 255, 255, 255))) { g.FillPath(brushAlpha, pathTop); } } } if (drawGlass) { RectangleF glassRect = rect; if (mode == LinearGradientMode.Vertical) { glassRect.Y = rect.Y + rect.Height * basePosition; glassRect.Height = (rect.Height - rect.Height * basePosition) * 2; } else { glassRect.X = rect.X + rect.Width * basePosition; glassRect.Width = (rect.Width - rect.Width * basePosition) * 2; } ControlPaintEx.DrawGlass(g, glassRect, 170, 0); } if (drawBorder) { using (GraphicsPath path = GraphicsPathHelper.CreateFilletRectangle(rect, roundWidth, style, false)) { using (Pen pen = new Pen(borderColor)) { g.DrawPath(pen, path); } } rect.Inflate(-1, -1); using (GraphicsPath path = GraphicsPathHelper.CreateFilletRectangle(rect, roundWidth, style, false)) { using (Pen pen = new Pen(innerBorderColor)) { g.DrawPath(pen, path); } } } } else { g.FillRectangle(brush, rect); if (baseColor.A > 80) { Rectangle rectTop = rect; if (mode == LinearGradientMode.Vertical) { rectTop.Height = (int)(rectTop.Height * basePosition); } else { rectTop.Width = (int)(rect.Width * basePosition); } using (SolidBrush brushAlpha = new SolidBrush(Color.FromArgb(80, 255, 255, 255))) { g.FillRectangle(brushAlpha, rectTop); } } if (drawGlass) { RectangleF glassRect = rect; if (mode == LinearGradientMode.Vertical) { glassRect.Y = rect.Y + rect.Height * basePosition; glassRect.Height = (rect.Height - rect.Height * basePosition) * 2; } else { glassRect.X = rect.X + rect.Width * basePosition; glassRect.Width = (rect.Width - rect.Width * basePosition) * 2; } ControlPaintEx.DrawGlass(g, glassRect, 200, 0); } if (drawBorder) { using (Pen pen = new Pen(borderColor)) { g.DrawRectangle(pen, rect); } rect.Inflate(-1, -1); using (Pen pen = new Pen(innerBorderColor)) { g.DrawRectangle(pen, rect); } } } } }
/// <summary> /// 渲染内部背景. /// </summary> /// <param name="g"></param> /// <param name="rect">渲染的区域.</param> /// <param name="baseColor">基色</param> /// <param name="borderColor">边框颜色</param> /// <param name="innerBorderColor">内边框颜色.</param> /// <param name="style">指定圆角的风格.</param> /// <param name="roundWidth">指定圆角的半径</param> /// <param name="drawBorder"></param> /// <param name="drawGlass"></param> /// <param name="mode">指定线性渐变的方向.</param> /// <param name="basePosition"></param> public static void RenderBackgroundInternal(Graphics g, Rectangle rect, Color baseColor, Color borderColor, Color innerBorderColor, RoundStyle style, int roundWidth, float basePosition, bool drawBorder, bool drawGlass, LinearGradientMode mode) { if (drawBorder) { rect.Width--; rect.Height--; } if (rect.Width == 0 || rect.Height == 0) { return; } using (LinearGradientBrush brush = new LinearGradientBrush(rect, Color.Transparent, Color.Transparent, mode)) { DecoratorBrush(brush, baseColor, basePosition); if (style != RoundStyle.None) { using (GraphicsPath path = GraphicsPathHelper.CreateFilletRectangle(rect, roundWidth, style, false)) { g.FillPath(brush, path);//填充区域. } if (baseColor.A > 80) { Rectangle rectTop = GetGradientModeRectangle(rect, basePosition, mode); DrawTranslucence(g, rectTop, roundWidth); } if (drawGlass) { RectangleF glassRect = GetGlassRectangle(rect, basePosition, mode); ControlPaintEx.DrawGlass(g, glassRect, 170, 0); } if (drawBorder) { DrawRoundBorder(g, rect, borderColor, innerBorderColor, style, roundWidth); } } else { g.FillRectangle(brush, rect); if (baseColor.A > 80) { Rectangle rectTop = GetGradientModeRectangle(rect, basePosition, mode); using (SolidBrush brushAlpha = new SolidBrush(Color.FromArgb(128, 255, 255, 255))) { g.FillRectangle(brushAlpha, rectTop); } } if (drawGlass) { RectangleF glassRect = GetGlassRectangle(rect, basePosition, mode); ControlPaintEx.DrawGlass(g, glassRect, 200, 0); } if (drawBorder) { DrawNormalBorder(g, rect, borderColor, innerBorderColor); } } } }