1226 lines
49 KiB
C#

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
#if TREEGX
namespace DevComponents.Tree
#elif DOTNETBAR
namespace DevComponents.DotNetBar
#endif
{
/// <summary>
/// Paints the ElementStyle
/// </summary>
public class ElementStyleDisplay
{
/// <summary>Creates new instance of the object.</summary>
public ElementStyleDisplay()
{
}
/// <summary>
/// Paints text for given style.
/// </summary>
/// <param name="e">Display information.</param>
/// <param name="text">Text to paint.</param>
/// <param name="defaultFont">Default font if no font by style is specified.</param>
public static void PaintText(ElementStyleDisplayInfo e, string text, Font defaultFont)
{
PaintText(e, text, defaultFont, false);
}
/// <summary>
/// Paints text for given style.
/// </summary>
/// <param name="e">Display information.</param>
/// <param name="text"><Text to paint./param>
/// <param name="defaultFont">Default font if no font by style is specified.</param>
/// <param name="useDefaultFont">Specifies whether to use default font for painting regardless of style settings.</param>
public static void PaintText(ElementStyleDisplayInfo e, string text, Font defaultFont, bool useDefaultFont)
{
PaintText(e, text, defaultFont, useDefaultFont, e.Style.TextFormat);
}
/// <summary>
/// Paints text for given style.
/// </summary>
/// <param name="e">Display information.</param>
/// <param name="text"><Text to paint./param>
/// <param name="defaultFont">Default font if no font by style is specified.</param>
/// <param name="useDefaultFont">Specifies whether to use default font for painting regardless of style settings.</param>
public static void PaintText(ElementStyleDisplayInfo e, string text, Font defaultFont, bool useDefaultFont, eTextFormat textFormat)
{
Rectangle textBounds = e.Bounds;
ElementStyle style = GetElementStyle(e.Style);
if (text == "" || textBounds.IsEmpty || style.TextColor.IsEmpty)
return;
Font font = style.Font;
if (font == null || useDefaultFont)
font = defaultFont;
textBounds.X += style.MarginLeft;
textBounds.Width -= (style.MarginLeft + style.MarginRight);
textBounds.Y += style.MarginTop;
textBounds.Height -= (style.MarginTop + style.MarginBottom);
if (!style.TextShadowColor.IsEmpty && Math.Abs(style.TextShadowColor.GetBrightness() - style.TextColor.GetBrightness()) > .2)
{
using (SolidBrush brush = new SolidBrush(style.TextShadowColor))
{
Rectangle r = textBounds;
r.Offset(style.TextShadowOffset);
TextDrawing.DrawString(e.Graphics, text, font, style.TextShadowColor, r, textFormat);
//e.Graphics.DrawString(text,font,brush,r,style.StringFormat);
}
}
if (!style.TextColor.IsEmpty)
TextDrawing.DrawString(e.Graphics, text, font, style.TextColor, textBounds, textFormat);
}
/// <summary>Returns new Region object for given ElementStyle.</summary>
/// <returns>New instance of Region object.</returns>
/// <param name="e">Information to describe ElementStyle.</param>
public static Region GetStyleRegion(ElementStyleDisplayInfo e)
{
Rectangle rectPath = e.Bounds;
if (e.Style.PaintBorder && e.Style.CornerType!=eCornerType.Square)
{
rectPath.Width--;
rectPath.Height--;
}
GraphicsPath path = ElementStyleDisplay.GetBackgroundPath(e.Style, rectPath);
Region r = new Region();
r.MakeEmpty();
r.Union(path);
// Widen path for the border...
if (e.Style.PaintBorder && (e.Style.CornerType == eCornerType.Rounded || e.Style.CornerType == eCornerType.Diagonal ||
e.Style.CornerTypeTopLeft == eCornerType.Rounded || e.Style.CornerTypeTopLeft == eCornerType.Diagonal ||
e.Style.CornerTypeTopRight==eCornerType.Rounded || e.Style.CornerTypeTopRight==eCornerType.Diagonal ||
e.Style.CornerTypeBottomLeft==eCornerType.Rounded || e.Style.CornerTypeBottomLeft==eCornerType.Diagonal ||
e.Style.CornerTypeBottomRight==eCornerType.Rounded || e.Style.CornerTypeBottomRight==eCornerType.Diagonal))
{
using (Pen pen = new Pen(Color.Black, (e.Style.BorderTopWidth>0?e.Style.BorderTopWidth:1)))
{
path.Widen(pen);
}
//Region r2 = new Region(path);
r.Union(path);
}
return r;
//GraphicsPath path=ElementStyleDisplay.GetBackgroundPath(e.Style,e.Bounds,false);
//return new Region(path);
}
/// <summary>
/// Returns the clipping for the content of the element style.
/// </summary>
/// <param name="e"></param>
/// <returns></returns>
public static GraphicsPath GetInsideClip(ElementStyleDisplayInfo e)
{
Rectangle rectPath = e.Bounds;
// GDI bug
if (e.Style.PaintBorder)
{
if (e.Style.PaintTopBorder)
{
rectPath.Y += e.Style.BorderTopWidth;
rectPath.Height -= e.Style.BorderTopWidth;
if (e.Style.BorderTop == eStyleBorderType.Etched || e.Style.BorderTop == eStyleBorderType.Double)
{
rectPath.Y += e.Style.BorderTopWidth;
rectPath.Height -= e.Style.BorderTopWidth;
}
}
if (e.Style.PaintBottomBorder)
{
rectPath.Height -= e.Style.BorderBottomWidth;
if (e.Style.BorderBottom == eStyleBorderType.Etched || e.Style.BorderBottom == eStyleBorderType.Double)
rectPath.Height -= e.Style.BorderBottomWidth;
}
if (e.Style.PaintLeftBorder)
{
rectPath.X += e.Style.BorderLeftWidth;
rectPath.Width -= e.Style.BorderLeftWidth;
if (e.Style.BorderLeft == eStyleBorderType.Etched || e.Style.BorderLeft == eStyleBorderType.Double)
{
rectPath.X += e.Style.BorderLeftWidth;
rectPath.Width -= e.Style.BorderLeftWidth;
}
}
if (e.Style.PaintRightBorder)
{
rectPath.Width -= e.Style.BorderRightWidth;
if (e.Style.BorderRight == eStyleBorderType.Etched || e.Style.BorderRight == eStyleBorderType.Double)
rectPath.Width -= e.Style.BorderRightWidth;
}
}
GraphicsPath path = ElementStyleDisplay.GetBackgroundPath(e.Style, rectPath);
return path;
}
/// <summary>
/// Paints the element style on the canvas.
/// </summary>
/// <param name="e">Holds information neccessary to paint style on canvas.</param>
public static void Paint(ElementStyleDisplayInfo e)
{
ElementStyleDisplay.PaintBackground(e);
ElementStyleDisplay.PaintBackgroundImage(e);
ElementStyleDisplay.PaintBorder(e);
}
private static eCornerType GetCornerType(eCornerType baseType, eCornerType specificType)
{
if(specificType!=eCornerType.Inherit)
return specificType;
return baseType;
}
/// <summary>
/// Paint style border.
/// </summary>
/// <param name="e">Style display information.</param>
public static void PaintBorder(ElementStyleDisplayInfo e)
{
ElementStyle style = GetElementStyle(e.Style);
Rectangle bounds=ElementStyleDisplay.GetBorderRectangle(style,e.Bounds);
if (bounds.Width < 2 || bounds.Height < 2)
return;
eCornerType cornerTopLeft = GetCornerType(style.CornerType, style.CornerTypeTopLeft);
eCornerType cornerTopRight = GetCornerType(style.CornerType, style.CornerTypeTopRight);
eCornerType cornerBottomLeft = GetCornerType(style.CornerType, style.CornerTypeBottomLeft);
eCornerType cornerBottomRight = GetCornerType(style.CornerType, style.CornerTypeBottomRight);
if (!style.BorderColor2.IsEmpty || !style.BorderColorLight.IsEmpty)
{
if (style.Border == eStyleBorderType.Solid)
{
using (GraphicsPath path = DisplayHelp.GetRoundedRectanglePath(bounds, style.CornerDiameter, eStyleBackgroundPathPart.Complete,
cornerTopLeft, cornerTopRight, cornerBottomLeft, cornerBottomRight))
{
DisplayHelp.DrawGradientPathBorder(e.Graphics, path, style.BorderColor, style.BorderColor2, style.BorderGradientAngle, style.BorderWidth);
}
return;
}
else if (style.Border == eStyleBorderType.Etched)
{
Rectangle r = bounds;
r.Width -= style.BorderWidth;
r.Height -= style.BorderWidth;
r.Offset(style.BorderWidth, style.BorderWidth);
if (r.Width > 2 && r.Height > 2)
{
using (GraphicsPath path = DisplayHelp.GetRoundedRectanglePath(r, style.CornerDiameter, eStyleBackgroundPathPart.Complete,
cornerTopLeft, cornerTopRight, cornerBottomLeft, cornerBottomRight))
{
DisplayHelp.DrawGradientPathBorder(e.Graphics, path, style.BorderColorLight, style.BorderColorLight2, style.BorderLightGradientAngle, style.BorderWidth);
}
r.Offset(-style.BorderWidth, -style.BorderWidth);
using (GraphicsPath path = DisplayHelp.GetRoundedRectanglePath(r, style.CornerDiameter, eStyleBackgroundPathPart.Complete,
cornerTopLeft, cornerTopRight, cornerBottomLeft, cornerBottomRight))
{
DisplayHelp.DrawGradientPathBorder(e.Graphics, path, style.BorderColor, style.BorderColor2, style.BorderGradientAngle, style.BorderWidth);
}
}
return;
}
else if ((style.BorderTop == eStyleBorderType.Double && style.BorderLeft == eStyleBorderType.Double &&
style.BorderRight == eStyleBorderType.Double && style.BorderBottom == eStyleBorderType.Double) ||
(style.BorderTop == eStyleBorderType.None && style.BorderLeft == eStyleBorderType.Double &&
style.BorderRight == eStyleBorderType.Double && style.BorderBottom == eStyleBorderType.Double))
{
Rectangle r = bounds;
Region oldClip = null;
bool clipSet = false;
if (style.BorderTop == eStyleBorderType.None)
{
Rectangle clipRect = r;
clipRect.Width++;
clipRect.Height++;
e.Graphics.SetClip(clipRect);
r.Y -= 3;
r.Height += 3;
}
using(GraphicsPath path = DisplayHelp.GetBorderPath(r, style.CornerDiameter, eStyleBackgroundPathPart.Complete,
cornerTopLeft, cornerTopRight, cornerBottomLeft, cornerBottomRight, style.PaintLeftBorder, style.PaintRightBorder,
style.PaintTopBorder, style.PaintBottomBorder))
{
using (Pen pen = new Pen(style.BorderColor, style.BorderWidth))
path.Widen(pen);
DisplayHelp.FillPath(e.Graphics, path, style.BorderColor, style.BorderColor2);
}
r.Inflate(-style.BorderWidth, -style.BorderWidth);
using (GraphicsPath path = DisplayHelp.GetBorderPath(r, style.CornerDiameter, eStyleBackgroundPathPart.Complete,
cornerTopLeft, cornerTopRight, cornerBottomLeft, cornerBottomRight, style.PaintLeftBorder, style.PaintRightBorder,
style.PaintTopBorder, style.PaintBottomBorder))
{
using (Pen pen = new Pen(style.BorderColor, style.BorderWidth))
path.Widen(pen);
DisplayHelp.FillPath(e.Graphics, path, style.BorderColorLight, style.BorderColorLight2);
}
if (clipSet)
e.Graphics.Clip = oldClip;
return;
}
}
Color colorStart = style.BorderColor;
Color colorEnd = style.BorderColor2;
Color colorLightStart = style.BorderColorLight;
Color colorLightEnd = style.BorderColorLight2;
if(style.PaintLeftBorder)
{
Color color=style.BorderColor;
if(!style.BorderLeftColor.IsEmpty)
color=style.BorderLeftColor;
Point[] p=new Point[2];
// Corner type square is default setting
p[0]=bounds.Location;
p[1].X=bounds.X;
p[1].Y=bounds.Bottom;
if(cornerTopLeft!=eCornerType.Square)
{
p[0].Y+=style.CornerDiameter;
}
if(cornerBottomLeft!=eCornerType.Square)
{
p[1].Y-=style.CornerDiameter;
}
ElementStyleDisplay.DrawBorderLine(e.Graphics, p, style.BorderLeft, style.BorderLeftWidth, color, colorEnd, colorLightStart, colorLightEnd, eBorderSide.Left);
if(style.PaintTopBorder && cornerTopLeft!=eCornerType.Square)
{
if(cornerTopLeft==eCornerType.Diagonal)
{
p[0].X=bounds.X;
p[0].Y=bounds.Y+style.CornerDiameter;
p[1].X=bounds.X+style.CornerDiameter;
p[1].Y=bounds.Y;
ElementStyleDisplay.DrawBorderLine(e.Graphics, p, style.BorderLeft, style.BorderLeftWidth, color, colorEnd, colorLightStart, colorLightEnd, eBorderSide.TopLeft);
}
else if(cornerTopLeft==eCornerType.Rounded)
{
ArcData a=GetCornerArc(bounds,style.CornerDiameter,eCornerArc.TopLeft);// new ArcData(bounds.X,bounds.Y,style.CornerDiameter*2,style.CornerDiameter*2,180,90);
ElementStyleDisplay.DrawCornerArc(e.Graphics,a,style.BorderLeft,style.BorderLeftWidth,color);
}
}
if(style.PaintBottomBorder && cornerBottomLeft!=eCornerType.Square)
{
if(cornerBottomLeft==eCornerType.Diagonal)
{
p[0].X=bounds.X;
p[0].Y=bounds.Bottom-style.CornerDiameter;
p[1].X=bounds.X+style.CornerDiameter;
p[1].Y=bounds.Bottom;
ElementStyleDisplay.DrawBorderLine(e.Graphics, p, style.BorderLeft, style.BorderLeftWidth, color, colorEnd, colorLightStart, colorLightEnd, eBorderSide.BottomLeft);
}
else if(cornerBottomLeft==eCornerType.Rounded)
{
ArcData a=GetCornerArc(bounds,style.CornerDiameter,eCornerArc.BottomLeft);// new ArcData(bounds.X,bounds.Y,style.CornerDiameter*2,style.CornerDiameter*2,180,90);
ElementStyleDisplay.DrawCornerArc(e.Graphics,a,style.BorderLeft,style.BorderLeftWidth,color);
}
}
}
if(style.PaintTopBorder)
{
Color color=style.BorderColor;
if(!style.BorderTopColor.IsEmpty)
color=style.BorderTopColor;
Point[] p=new Point[2];
// Default setting for Square corner type on both sides
p[0]=bounds.Location;
p[1].X=bounds.Right;
p[1].Y=bounds.Y;
if(cornerTopLeft!=eCornerType.Square)
{
p[0].X+=style.CornerDiameter;
}
if(cornerTopRight!=eCornerType.Square)
{
p[1].X-=style.CornerDiameter;
}
ElementStyleDisplay.DrawBorderLine(e.Graphics, p, style.BorderTop, style.BorderTopWidth, color, colorEnd, colorLightStart, colorLightEnd, eBorderSide.Top);
}
if(style.PaintBottomBorder)
{
Color color=style.BorderColor;
if(!style.BorderBottomColor.IsEmpty)
color=style.BorderBottomColor;
Point[] p=new Point[2];
// Default for Square corner type on both sides
p[0].X=bounds.X;
p[0].Y=bounds.Bottom;
p[1].X=bounds.Right;
p[1].Y=bounds.Bottom;
if(cornerBottomLeft!=eCornerType.Square)
{
p[0].X+=style.CornerDiameter;
}
if(cornerBottomRight!=eCornerType.Square)
{
p[1].X-=style.CornerDiameter;
}
ElementStyleDisplay.DrawBorderLine(e.Graphics, p, style.BorderBottom, style.BorderBottomWidth, color, colorEnd, colorLightStart, colorLightEnd, eBorderSide.Bottom);
}
if(style.PaintRightBorder)
{
Color color=style.BorderColor;
if(!style.BorderRightColor.IsEmpty)
color=style.BorderRightColor;
Point[] p=new Point[2];
// Default for Square corner type on both sides
p[0].X=bounds.Right;
p[0].Y=bounds.Y;
p[1].X=bounds.Right;
p[1].Y=bounds.Bottom;
if(cornerTopRight!=eCornerType.Square)
{
p[0].Y+=style.CornerDiameter;
}
if(cornerBottomRight!=eCornerType.Square)
{
p[1].Y-=style.CornerDiameter;
}
ElementStyleDisplay.DrawBorderLine(e.Graphics, p, style.BorderRight, style.BorderRightWidth, color, colorEnd, colorLightStart, colorLightEnd, eBorderSide.Right);
if(style.PaintTopBorder && cornerTopRight!=eCornerType.Square)
{
if(cornerTopRight==eCornerType.Diagonal)
{
p[0].X=bounds.Right-style.CornerDiameter;
p[0].Y=bounds.Y;
p[1].X=bounds.Right;
p[1].Y=bounds.Y+style.CornerDiameter;
ElementStyleDisplay.DrawBorderLine(e.Graphics, p, style.BorderLeft, style.BorderRightWidth, color, colorEnd, colorLightStart, colorLightEnd, eBorderSide.TopRight);
}
else if(cornerTopRight==eCornerType.Rounded)
{
ArcData a=GetCornerArc(bounds,style.CornerDiameter,eCornerArc.TopRight);// new ArcData(bounds.X,bounds.Y,style.CornerDiameter*2,style.CornerDiameter*2,180,90);
ElementStyleDisplay.DrawCornerArc(e.Graphics,a,style.BorderLeft,style.BorderLeftWidth,color);
}
}
if(style.PaintBottomBorder && cornerBottomRight!=eCornerType.Square)
{
if(cornerBottomRight==eCornerType.Diagonal)
{
p[0].X=bounds.Right;
p[0].Y=bounds.Bottom-style.CornerDiameter;
p[1].X=bounds.Right-style.CornerDiameter;
p[1].Y=bounds.Bottom;
ElementStyleDisplay.DrawBorderLine(e.Graphics,p,style.BorderLeft,style.BorderRightWidth,color, colorEnd, colorLightStart, colorLightEnd,eBorderSide.BottomRight);
}
else if(cornerBottomRight==eCornerType.Rounded)
{
ArcData a=GetCornerArc(bounds,style.CornerDiameter,eCornerArc.BottomRight);// new ArcData(bounds.X,bounds.Y,style.CornerDiameter*2,style.CornerDiameter*2,180,90);
ElementStyleDisplay.DrawCornerArc(e.Graphics,a,style.BorderLeft,style.BorderLeftWidth,color);
}
}
}
}
private static Pen CreatePen(eStyleBorderType border,int lineWidth, Color color)
{
Pen pen=new Pen(color,lineWidth);
pen.Alignment=PenAlignment.Inset;
pen.DashStyle=ElementStyleDisplay.GetDashStyle(border);
return pen;
}
private static void DrawBorderLine(Graphics g,Point[] p,eStyleBorderType border,int lineWidth, Color colorStart, Color colorEnd, Color colorLightStart, Color colorLightEnd, eBorderSide side)
{
if (border == eStyleBorderType.Etched || border == eStyleBorderType.Double)
{
if (colorLightStart.IsEmpty)
{
colorLightStart = System.Windows.Forms.ControlPaint.Light(colorStart);
colorStart = System.Windows.Forms.ControlPaint.Dark(colorStart);
}
if (side == eBorderSide.Bottom || side == eBorderSide.Right)
{
Color ct1 = colorStart;
Color ct2 = colorEnd;
colorStart = colorLightStart;
colorEnd = colorLightEnd;
colorLightStart = ct1;
colorLightEnd = ct2;
}
DisplayHelp.DrawGradientLine(g, p[0], p[1], colorStart, colorEnd, 90, lineWidth);
if (side == eBorderSide.Top)
{
p[0].Y+=lineWidth;
p[1].Y += lineWidth;
}
else if (side == eBorderSide.Bottom)
{
p[0].Y -= lineWidth;
p[1].Y -= lineWidth;
}
else if (side == eBorderSide.Left || side == eBorderSide.BottomLeft || side == eBorderSide.TopLeft)
{
p[0].X += lineWidth;
p[1].X += lineWidth;
}
else if (side == eBorderSide.Right || side == eBorderSide.BottomRight || side == eBorderSide.TopRight)
{
p[0].X -= lineWidth;
p[1].X -= lineWidth;
}
DisplayHelp.DrawGradientLine(g, p[0], p[1], colorLightStart, colorLightEnd, 90, lineWidth);
}
else
{
if (colorEnd.IsEmpty)
{
SmoothingMode sm = g.SmoothingMode;
g.SmoothingMode = SmoothingMode.None;
using (Pen pen = CreatePen(border, lineWidth, colorStart))
g.DrawLine(pen, p[0], p[1]);
g.SmoothingMode = sm;
}
else
DisplayHelp.DrawGradientLine(g, p[0], p[1], colorStart, colorEnd, 90, lineWidth);
}
}
private static void DrawCornerArc(Graphics g,ArcData arc,eStyleBorderType border,int lineWidth, Color color)
{
using(Pen pen=CreatePen(border,lineWidth,color))
{
g.DrawArc(pen,arc.X,arc.Y,arc.Width,arc.Height,arc.StartAngle,arc.SweepAngle);
}
}
private static DashStyle GetDashStyle(eStyleBorderType border)
{
DashStyle style=DashStyle.Solid;
switch(border)
{
case eStyleBorderType.Dash:
style=DashStyle.Dash;
break;
case eStyleBorderType.DashDot:
style=DashStyle.DashDot;
break;
case eStyleBorderType.DashDotDot:
style=DashStyle.DashDotDot;
break;
case eStyleBorderType.Dot:
style=DashStyle.Dot;
break;
}
return style;
}
internal static ElementStyle GetElementStyle(ElementStyle style)
{
if (style.Class == "")
return style;
IElementStyleClassProvider provider = GetIElementStyleClassProvider();
if (provider != null)
{
ElementStyle baseStyle = provider.GetClass(style.Class);
if (baseStyle != null)
{
return baseStyle;
}
}
return style;
}
private static IElementStyleClassProvider GetIElementStyleClassProvider()
{
#if DOTNETBAR
if (Rendering.GlobalManager.Renderer is Rendering.Office2007Renderer)
{
return ((Rendering.Office2007Renderer)Rendering.GlobalManager.Renderer).ColorTable as IElementStyleClassProvider;
}
#endif
return null;
}
/// <summary>
/// Paints style background.
/// </summary>
/// <param name="e">Style display information.</param>
public static void PaintBackground(ElementStyleDisplayInfo e)
{
Region oldClip = e.Graphics.Clip;
if (oldClip != null)
e.Graphics.SetClip(e.Bounds, CombineMode.Intersect);
else
e.Graphics.SetClip(e.Bounds, CombineMode.Replace);
ElementStyle style = GetElementStyle(e.Style);
SmoothingMode sm = e.Graphics.SmoothingMode;
e.Graphics.SmoothingMode = SmoothingMode.Default;
// Paint Background
Rectangle bounds=DisplayHelp.GetDrawRectangle(ElementStyleDisplay.GetBackgroundRectangle(style,e.Bounds));
GraphicsPath path;
path = ElementStyleDisplay.GetBackgroundPath(style, e.Bounds);
eBackgroundColorBlendType blendType = style.BackColorBlend.GetBlendType();
if (blendType!=eBackgroundColorBlendType.Invalid)
{
if (blendType == eBackgroundColorBlendType.Relative)
{
try
{
if (style.BackColorGradientType == eGradientType.Linear)
{
Rectangle rb = bounds;
rb.Inflate(1, 1);
using (LinearGradientBrush brush = DisplayHelp.CreateLinearGradientBrush(rb, style.BackColor, style.BackColor2, style.BackColorGradientAngle))
{
brush.InterpolationColors = style.BackColorBlend.GetColorBlend();
e.Graphics.FillPath(brush, path);
}
}
else if (style.BackColorGradientType == eGradientType.Radial)
{
int d = (int)Math.Sqrt(bounds.Width * bounds.Width + bounds.Height * bounds.Height) + 4;
GraphicsPath fillPath = new GraphicsPath();
fillPath.AddEllipse(bounds.X - (d - bounds.Width) / 2, bounds.Y - (d - bounds.Height) / 2, d, d);
using (PathGradientBrush brush = new PathGradientBrush(fillPath))
{
brush.CenterColor = style.BackColor;
brush.SurroundColors = new Color[] { style.BackColor2 };
brush.InterpolationColors = style.BackColorBlend.GetColorBlend();
e.Graphics.FillPath(brush, path);
}
fillPath.Dispose();
}
}
catch
{
blendType = eBackgroundColorBlendType.Invalid;
}
}
else
{
Graphics g = e.Graphics;
bounds = e.Bounds;
if (oldClip != null)
{
e.Graphics.SetClip(oldClip, CombineMode.Replace);
e.Graphics.SetClip(path, CombineMode.Intersect);
}
else
e.Graphics.SetClip(path, CombineMode.Replace);
BackgroundColorBlendCollection bc = style.BackColorBlend;
for (int i = 0; i < bc.Count; i+=2)
{
BackgroundColorBlend b1 = bc[i];
BackgroundColorBlend b2 = null;
if (i < bc.Count)
b2 = bc[i + 1];
if (b1 != null && b2 != null)
{
Rectangle rb = new Rectangle(bounds.X, bounds.Y + (int)b1.Position, bounds.Width,
(b2.Position == 1f ? bounds.Height : (int)b2.Position) - (int)b1.Position);
using (LinearGradientBrush brush = DisplayHelp.CreateLinearGradientBrush(rb, b1.Color, b2.Color, style.BackColorGradientAngle))
g.FillRectangle(brush, rb);
}
}
}
}
if(blendType==eBackgroundColorBlendType.Invalid)
{
if (style.BackColor2.IsEmpty)
{
if (!style.BackColor.IsEmpty)
{
using (SolidBrush brush = new SolidBrush(style.BackColor))
e.Graphics.FillPath(brush, path);
//if(e.Style.BackColor.A==255)
//{
// // Correct problems with FillPath where path was not filled properly...
// using(Pen pen=new Pen(e.Style.BackColor,1))
// e.Graphics.DrawPath(pen,path);
//}
}
}
else if (!style.BackColor.IsEmpty)
{
if (style.BackColorGradientType == eGradientType.Linear)
{
Rectangle rb = bounds;
rb.X--;
rb.Height++;
rb.Width += 2;
using (LinearGradientBrush brush = DisplayHelp.CreateLinearGradientBrush(rb, style.BackColor, style.BackColor2, style.BackColorGradientAngle))
{
e.Graphics.FillPath(brush, path);
}
}
else if (style.BackColorGradientType == eGradientType.Radial)
{
int d = (int)Math.Sqrt(bounds.Width * bounds.Width + bounds.Height * bounds.Height) + 4;
GraphicsPath fillPath = new GraphicsPath();
fillPath.AddEllipse(bounds.X - (d - bounds.Width) / 2, bounds.Y - (d - bounds.Height) / 2, d, d);
using (PathGradientBrush brush = new PathGradientBrush(fillPath))
{
brush.CenterColor = style.BackColor;
brush.SurroundColors = new Color[] { style.BackColor2 };
e.Graphics.FillPath(brush, path);
}
fillPath.Dispose();
}
}
}
e.Graphics.SmoothingMode = sm;
if (oldClip != null)
e.Graphics.Clip = oldClip;
else
e.Graphics.ResetClip();
}
/// <summary>
/// Paints style background image.
/// </summary>
/// <param name="e">Style display information.</param>
public static void PaintBackgroundImage(ElementStyleDisplayInfo e)
{
ElementStyle style = GetElementStyle(e.Style);
if(style.BackgroundImage==null)
return;
Rectangle bounds = DisplayHelp.GetDrawRectangle(ElementStyleDisplay.GetBackgroundRectangle(style, e.Bounds));
GraphicsPath path;
if (e.Graphics.SmoothingMode == SmoothingMode.AntiAlias)
{
Rectangle r = e.Bounds;
r.Width--;
//r.Height--;
path = ElementStyleDisplay.GetBackgroundPath(style, r);
}
else
path = ElementStyleDisplay.GetBackgroundPath(style, e.Bounds);
ImageAttributes imageAtt=null;
if (style.BackgroundImageAlpha != 255)
{
ColorMatrix colorMatrix=new ColorMatrix();
colorMatrix.Matrix33 = 255 - style.BackgroundImageAlpha;
imageAtt=new ImageAttributes();
imageAtt.SetColorMatrix(colorMatrix,ColorMatrixFlag.Default,ColorAdjustType.Bitmap);
}
Region clip=e.Graphics.Clip;
e.Graphics.SetClip(path);
eStyleBackgroundImage imagePosition = style.BackgroundImagePosition;
bool transform = false;
Image backgroundImage = style.BackgroundImage;
if (e.RightToLeft)
{
if (imagePosition == eStyleBackgroundImage.TopLeft)
{
imagePosition = eStyleBackgroundImage.TopRight;
transform = true;
}
else if (imagePosition == eStyleBackgroundImage.TopRight)
imagePosition = eStyleBackgroundImage.TopLeft;
else if (imagePosition == eStyleBackgroundImage.BottomLeft)
imagePosition = eStyleBackgroundImage.BottomRight;
else if (imagePosition == eStyleBackgroundImage.BottomRight)
imagePosition = eStyleBackgroundImage.BottomLeft;
}
if (transform)
{
backgroundImage = backgroundImage.Clone() as Image;
backgroundImage.RotateFlip(RotateFlipType.RotateNoneFlipX);
}
switch (imagePosition)
{
case eStyleBackgroundImage.Stretch:
{
if(imageAtt!=null)
e.Graphics.DrawImage(backgroundImage, bounds, 0, 0, backgroundImage.Width, backgroundImage.Height, GraphicsUnit.Pixel, imageAtt);
else
e.Graphics.DrawImage(backgroundImage, bounds, 0, 0, backgroundImage.Width, backgroundImage.Height, GraphicsUnit.Pixel);
break;
}
case eStyleBackgroundImage.Center:
{
Rectangle destRect = new Rectangle(bounds.X, bounds.Y, backgroundImage.Width, backgroundImage.Height);
if (bounds.Width > backgroundImage.Width)
destRect.X += (bounds.Width - backgroundImage.Width) / 2;
if (bounds.Height > backgroundImage.Height)
destRect.Y += (bounds.Height - backgroundImage.Height) / 2;
if(imageAtt!=null)
e.Graphics.DrawImage(backgroundImage, destRect, 0, 0, backgroundImage.Width, backgroundImage.Height, GraphicsUnit.Pixel, imageAtt);
else
e.Graphics.DrawImage(backgroundImage, destRect, 0, 0, backgroundImage.Width, backgroundImage.Height, GraphicsUnit.Pixel);
break;
}
case eStyleBackgroundImage.TopLeft:
case eStyleBackgroundImage.TopRight:
case eStyleBackgroundImage.BottomLeft:
case eStyleBackgroundImage.BottomRight:
{
Rectangle destRect = new Rectangle(bounds.X, bounds.Y, backgroundImage.Width, backgroundImage.Height);
if (imagePosition == eStyleBackgroundImage.TopRight)
destRect.X = bounds.Right - backgroundImage.Width;
else if (imagePosition == eStyleBackgroundImage.BottomLeft)
destRect.Y = bounds.Bottom - backgroundImage.Height;
else if (imagePosition == eStyleBackgroundImage.BottomRight)
{
destRect.Y = bounds.Bottom - backgroundImage.Height;
destRect.X = bounds.Right - backgroundImage.Width;
}
if(imageAtt!=null)
e.Graphics.DrawImage(backgroundImage, destRect, 0, 0, backgroundImage.Width, backgroundImage.Height, GraphicsUnit.Pixel, imageAtt);
else
e.Graphics.DrawImage(backgroundImage, destRect, 0, 0, backgroundImage.Width, backgroundImage.Height, GraphicsUnit.Pixel);
break;
}
case eStyleBackgroundImage.Tile:
{
if(imageAtt!=null)
{
if (bounds.Width > backgroundImage.Width || bounds.Height > backgroundImage.Height)
{
int x=bounds.X,y=bounds.Y;
while(y<bounds.Bottom)
{
while(x<bounds.Right)
{
Rectangle destRect = new Rectangle(x, y, backgroundImage.Width, backgroundImage.Height);
if(destRect.Right>bounds.Right)
destRect.Width=destRect.Width-(destRect.Right-bounds.Right);
if(destRect.Bottom>bounds.Bottom)
destRect.Height=destRect.Height-(destRect.Bottom-bounds.Bottom);
e.Graphics.DrawImage(backgroundImage, destRect, 0, 0, destRect.Width, destRect.Height, GraphicsUnit.Pixel, imageAtt);
x += backgroundImage.Width;
}
x=bounds.X;
y += backgroundImage.Height;
}
}
else
{
e.Graphics.DrawImage(backgroundImage, new Rectangle(0, 0, backgroundImage.Width, backgroundImage.Height), 0, 0, backgroundImage.Width, backgroundImage.Height, GraphicsUnit.Pixel, imageAtt);
}
}
else
{
TextureBrush brush = new TextureBrush(backgroundImage);
brush.WrapMode=WrapMode.Tile;
e.Graphics.FillPath(brush,path);
brush.Dispose();
}
break;
}
}
if (transform)
{
backgroundImage.Dispose();
}
if (clip != null)
e.Graphics.Clip = clip;
else
e.Graphics.ResetClip();
}
/// <summary>
/// Returns background rectangle for given style by taking in account margins.
/// </summary>
/// <param name="style">Reference to style object.</param>
/// <param name="bounds">Style bounds</param>
/// <returns>Background rectangle.</returns>
public static Rectangle GetBackgroundRectangle(ElementStyle style, Rectangle bounds)
{
// Reduce the bounds rectangle size by the margin size
bounds.X+=style.MarginLeft;
bounds.Width-=(style.MarginLeft+style.MarginRight);
bounds.Y+=style.MarginTop;
bounds.Height-=(style.MarginTop+style.MarginBottom);
return bounds;
}
private static Rectangle GetBorderRectangle(ElementStyle style, Rectangle bounds)
{
bounds=GetBackgroundRectangle(style,bounds);
if(style.PaintRightBorder)
{
if(style.BorderRightWidth<=1)
bounds.Width-=style.BorderRightWidth;
else
bounds.Width-=style.BorderRightWidth/2;
}
if(style.PaintBottomBorder)
{
if(style.BorderBottomWidth<=1)
bounds.Height-=style.BorderBottomWidth;
else
bounds.Height-=style.BorderBottomWidth/2;
}
if(style.PaintLeftBorder && style.BorderLeftWidth>1)
{
bounds.X+=style.BorderLeftWidth/2;
bounds.Width-=style.BorderLeftWidth/2;
}
if(style.PaintTopBorder && style.BorderTopWidth>1)
{
bounds.X+=style.BorderTopWidth/2;
bounds.Width-=style.BorderTopWidth/2;
}
return bounds;
}
private static Rectangle GetTextRectangle(ElementStyle style, Rectangle bounds)
{
bounds=ElementStyleDisplay.GetBackgroundRectangle(style,bounds);
// Reduce the bounds rectangle size by the padding size
bounds.X+=style.PaddingLeft;
bounds.Width-=(style.PaddingLeft+style.PaddingRight);
bounds.Y+=style.PaddingTop;
bounds.Height-=(style.PaddingTop+style.PaddingBottom);
return bounds;
}
/// <summary>
/// Returns GraphicsPath for given style.
/// </summary>
/// <param name="style">Reference to style.</param>
/// <param name="bounds">Style bounds.</param>
/// <returns>New instance of GraphicsPath</returns>
public static GraphicsPath GetBackgroundPath(ElementStyle style, Rectangle bounds)
{
return GetBackgroundPath(style, bounds, eStyleBackgroundPathPart.Complete);
}
/// <summary>
/// Returns GraphicsPath for given style.
/// </summary>
/// <param name="style">Reference to style.</param>
/// <param name="bounds">Style bounds.</param>
/// <returns>New instance of GraphicsPath</returns>
public static GraphicsPath GetBackgroundPath(ElementStyle style, Rectangle bounds, eStyleBackgroundPathPart pathPart)
{
GraphicsPath path=new GraphicsPath();
Rectangle clientRectangle;
//if(drawPath)
clientRectangle=/*DisplayHelp.GetDrawRectangle*/(ElementStyleDisplay.GetBackgroundRectangle(style,bounds));
//else
// clientRectangle =/*DisplayHelp.GetDrawRectangle*/(ElementStyleDisplay.GetBackgroundRectangle(style, bounds));
if (pathPart==eStyleBackgroundPathPart.Complete && style.CornerTypeBottomLeft == eCornerType.Inherit && style.CornerTypeBottomRight == eCornerType.Inherit &&
style.CornerTypeTopLeft == eCornerType.Inherit && style.CornerTypeTopRight == eCornerType.Inherit)
{
switch (style.CornerType)
{
case eCornerType.Square:
{
path.AddRectangle(clientRectangle);
break;
}
case eCornerType.Rounded:
{
ArcData ad = GetCornerArc(clientRectangle, style.CornerDiameter, eCornerArc.TopLeft);
path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
ad = GetCornerArc(clientRectangle, style.CornerDiameter, eCornerArc.TopRight);
path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
ad = GetCornerArc(clientRectangle, style.CornerDiameter, eCornerArc.BottomRight);
path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
ad = GetCornerArc(clientRectangle, style.CornerDiameter, eCornerArc.BottomLeft);
path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
path.CloseAllFigures();
break;
}
case eCornerType.Diagonal:
{
path.AddLine(clientRectangle.X, clientRectangle.Bottom - style.CornerDiameter - 1, clientRectangle.X, clientRectangle.Y + style.CornerDiameter);
path.AddLine(clientRectangle.X + style.CornerDiameter, clientRectangle.Y, clientRectangle.Right - style.CornerDiameter, clientRectangle.Y);
path.AddLine(clientRectangle.Right, clientRectangle.Y + style.CornerDiameter, clientRectangle.Right, clientRectangle.Bottom - style.CornerDiameter - 1);
path.AddLine(clientRectangle.Right - style.CornerDiameter - 1, clientRectangle.Bottom, clientRectangle.X + style.CornerDiameter, clientRectangle.Bottom);
path.CloseAllFigures();
break;
}
}
}
else
{
if(pathPart==eStyleBackgroundPathPart.TopHalf)
clientRectangle.Height = clientRectangle.Height/2;
else if(pathPart==eStyleBackgroundPathPart.BottomHalf)
{
int h=clientRectangle.Height;
clientRectangle.Height = clientRectangle.Height/2;
clientRectangle.Y += (h - clientRectangle.Height-1);
}
eCornerType corner = style.CornerTypeTopLeft;
if (corner == eCornerType.Inherit)
corner = style.CornerType;
if(pathPart==eStyleBackgroundPathPart.BottomHalf)
corner=eCornerType.Square;
if (corner == eCornerType.Rounded)
{
ArcData ad = GetCornerArc(clientRectangle, style.CornerDiameter, eCornerArc.TopLeft);
path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
}
else if (corner == eCornerType.Diagonal)
{
path.AddLine(clientRectangle.X, clientRectangle.Y + style.CornerDiameter, clientRectangle.X + style.CornerDiameter, clientRectangle.Y);
}
else
{
path.AddLine(clientRectangle.X, clientRectangle.Y + 2, clientRectangle.X, clientRectangle.Y);
path.AddLine(clientRectangle.X, clientRectangle.Y ,clientRectangle.X+2, clientRectangle.Y);
}
corner = style.CornerTypeTopRight;
if (corner == eCornerType.Inherit)
corner = style.CornerType;
if(pathPart==eStyleBackgroundPathPart.BottomHalf)
corner=eCornerType.Square;
if (corner == eCornerType.Rounded)
{
ArcData ad = GetCornerArc(clientRectangle, style.CornerDiameter, eCornerArc.TopRight);
path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
}
else if (corner == eCornerType.Diagonal)
{
path.AddLine(clientRectangle.Right-style.CornerDiameter-1, clientRectangle.Y , clientRectangle.Right, clientRectangle.Y+style.CornerDiameter);
}
else
{
path.AddLine(clientRectangle.Right-2, clientRectangle.Y, clientRectangle.Right, clientRectangle.Y);
path.AddLine(clientRectangle.Right, clientRectangle.Y, clientRectangle.Right, clientRectangle.Y+2);
}
corner = style.CornerTypeBottomRight;
if (corner == eCornerType.Inherit)
corner = style.CornerType;
if(pathPart==eStyleBackgroundPathPart.TopHalf)
corner=eCornerType.Square;
if (corner == eCornerType.Rounded)
{
ArcData ad = GetCornerArc(clientRectangle, style.CornerDiameter, eCornerArc.BottomRight);
path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
}
else if (corner == eCornerType.Diagonal)
{
path.AddLine(clientRectangle.Right, clientRectangle.Bottom - style.CornerDiameter - 1, clientRectangle.Right - style.CornerDiameter - 1, clientRectangle.Bottom);
}
else
{
path.AddLine(clientRectangle.Right, clientRectangle.Bottom-2, clientRectangle.Right, clientRectangle.Bottom);
path.AddLine(clientRectangle.Right, clientRectangle.Bottom, clientRectangle.Right-2, clientRectangle.Bottom);
}
corner = style.CornerTypeBottomLeft;
if (corner == eCornerType.Inherit)
corner = style.CornerType;
if(pathPart==eStyleBackgroundPathPart.TopHalf)
corner=eCornerType.Square;
if (corner == eCornerType.Rounded)
{
ArcData ad = GetCornerArc(clientRectangle, style.CornerDiameter, eCornerArc.BottomLeft);
path.AddArc(ad.X, ad.Y, ad.Width, ad.Height, ad.StartAngle, ad.SweepAngle);
}
else if (corner == eCornerType.Diagonal)
{
path.AddLine(clientRectangle.X + 2, clientRectangle.Bottom, clientRectangle.X, clientRectangle.Bottom - style.CornerDiameter - 1);
}
else
{
path.AddLine(clientRectangle.X+2, clientRectangle.Bottom, clientRectangle.X, clientRectangle.Bottom);
path.AddLine(clientRectangle.X, clientRectangle.Bottom, clientRectangle.X, clientRectangle.Bottom-2);
}
}
return path;
}
internal static void AddCornerArc(GraphicsPath path, Rectangle bounds, int cornerDiameter, eCornerArc corner)
{
ArcData a = GetCornerArc(bounds, cornerDiameter, corner);
path.AddArc(a.X, a.Y, a.Width, a.Height, a.StartAngle, a.SweepAngle);
}
internal static ArcData GetCornerArc(Rectangle bounds, int cornerDiameter, eCornerArc corner)
{
ArcData a;
int diameter=cornerDiameter*2;
switch(corner)
{
case eCornerArc.TopLeft:
a=new ArcData(bounds.X,bounds.Y,diameter,diameter,180,90);
break;
case eCornerArc.TopRight:
a=new ArcData(bounds.Right-diameter,bounds.Y,diameter,diameter,270,90);
break;
case eCornerArc.BottomLeft:
a=new ArcData(bounds.X,bounds.Bottom-diameter,diameter,diameter,90,90);
break;
default: // eCornerArc.BottomRight:
a=new ArcData(bounds.Right-diameter,bounds.Bottom-diameter,diameter,diameter,0,90);
break;
}
return a;
}
enum eBorderSide
{
Top,
Bottom,
Left,
Right,
TopLeft,
TopRight,
BottomLeft,
BottomRight
}
}
internal enum eCornerArc
{
TopLeft,
TopRight,
BottomLeft,
BottomRight
}
/// <summary>
/// Represents information neccessary to paint the style on canvas.
/// </summary>
public class ElementStyleDisplayInfo
{
/// <summary>Reference to ElementStyle object.</summary>
public ElementStyle Style=null;
/// <summary>Reference to Graphics object.</summary>
public Graphics Graphics=null;
/// <summary>ElementStyle bounds.</summary>
public Rectangle Bounds=Rectangle.Empty;
/// <summary>Get or sets whether layout is right-to-left.</summary>
public bool RightToLeft = false;
/// <summary>Creates new instance of the object.</summary>
public ElementStyleDisplayInfo()
{
}
/// <summary>Creates new instance of the object and initializes it with default values.</summary>
/// <param name="style">Style to initialize object with.</param>
/// <param name="g">Graphics object to initialize object with.</param>
/// <param name="bounds">Bounds to initialize object with.</param>
public ElementStyleDisplayInfo(ElementStyle style, Graphics g, Rectangle bounds)
{
this.Style=style;
this.Graphics=g;
this.Bounds=bounds;
}
// public ElementStyleDisplayInfo(ElementStyle style, System.Drawing.Graphics g, Rectangle bounds, string text, Rectangle textBounds)
// {
// this.Style=style;
// this.Graphics=g;
// this.Bounds=bounds;
// this.Text=text;
// this.TextBounds=textBounds;
// }
}
#region eStyleBackgroundPathPart
/// <summary>
/// Specifies part of the background path.
/// </summary>
public enum eStyleBackgroundPathPart
{
/// <summary>
/// Indicates complete background path
/// </summary>
Complete,
/// <summary>
/// Indicates Top half of background path
/// </summary>
TopHalf,
/// <summary>
/// Indicates Bottom half of background path
/// </summary>
BottomHalf
}
#endregion
#region ArcData
internal struct ArcData
{
public int X;
public int Y;
public int Width;
public int Height;
public float StartAngle;
public float SweepAngle;
public ArcData(int x, int y, int width, int height, float startAngle, float sweepAngle)
{
this.X=x;
this.Y=y;
this.Width=width;
this.Height=height;
this.StartAngle=startAngle;
this.SweepAngle=sweepAngle;
}
}
#endregion
}