protected override void OnRenderButtonBackground( ToolStripItemRenderEventArgs e) { ToolStripButton item = e.Item as ToolStripButton; if (item != null) { LinearGradientMode mode = e.ToolStrip.Orientation == Orientation.Horizontal ? LinearGradientMode.Vertical : LinearGradientMode.Horizontal; Graphics g = e.Graphics; g.SmoothingMode = SmoothingMode.AntiAlias; Rectangle bounds = new Rectangle(Point.Empty, item.Size); if (item.BackgroundImage != null) { Rectangle clipRect = item.Selected ? item.ContentRectangle : bounds; ControlPaintEx.DrawBackgroundImage( g, item.BackgroundImage, ColorTable.BackColorNormal, item.BackgroundImageLayout, bounds, clipRect); } if (item.CheckState == CheckState.Unchecked) { if (item.Selected) { Color color = ColorTable.BackColorHover; if (item.Pressed) { color = ColorTable.BackColorPressed; } RenderBackgroundInternal( g, bounds, color, ColorTable.BorderColor, ColorTable.BackColorNormal, RoundStyle.All, true, true, mode); return; } else { if (e.ToolStrip is ToolStripOverflow) { using (Brush brush = new SolidBrush(ColorTable.BackColorNormal)) { g.FillRectangle(brush, bounds); } return; } } } else { Color color = ControlPaint.Light(ColorTable.BackColorHover); if (item.Selected) { color = ColorTable.BackColorHover; } if (item.Pressed) { color = ColorTable.BackColorPressed; } RenderBackgroundInternal( e.Graphics, bounds, color, ColorTable.BorderColor, ColorTable.BackColorNormal, RoundStyle.All, true, true, mode); return; } } base.OnRenderButtonBackground(e); }
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.CreatePath(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.CreatePath( 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.CreatePath(rect, roundWidth, style, false)) { using (Pen pen = new Pen(borderColor)) { g.DrawPath(pen, path); } } rect.Inflate(-1, -1); using (GraphicsPath path = GraphicsPathHelper.CreatePath(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); } } } } }