/*
* DrawFormBorders
*/
/// <summary>
/// Draws borders for this <see cref="HostForm"/>.
/// </summary>
/// <param name="g">Specifies GDI+ drawing surface to draw on.</param>
/// <exception cref="ArgumentNullException"><paramref name="g"/> is <see langword="null"/>.</exception>
protected virtual void DrawFormBorders(Graphics g)
{
Debug.Assert(g != null, "g != null");
if (g == null)
{
throw new ArgumentNullException("g");
}
Debug.Assert(this.HostForm != null, "this.HostForm != null");
if (this.HostForm != null)
{
NuGenLinearGradientColorTable[] colorTables = this.GetBorderColors();
RectangleF borderRectangle = new RectangleF(
OFFSET,
OFFSET,
this.HostForm.Width - (1 + OFFSET),
this.HostForm.Height - (1 + OFFSET)
);
int borderWidth = colorTables.Length;
SmoothingMode previousSmoothingMode = g.SmoothingMode;
g.SmoothingMode = SmoothingMode.HighQuality;
int colorTableIndex = 0;
for (int i = 0; i < borderWidth; i++)
{
NuGenLinearGradientColorTable colorTable = colorTables[colorTableIndex];
using (GraphicsPath gp = this.GetFormPath(borderRectangle))
{
NuGenRibbonFormPainter.DrawBorders(
g,
gp,
colorTable.StartColor,
colorTable.EndColor,
colorTable.GradientAngle,
colorTables.Length
);
}
borderRectangle.Inflate(-1, -1);
if (colorTableIndex < (colorTables.Length - 1))
{
colorTableIndex++;
}
}
g.SmoothingMode = previousSmoothingMode;
}
}
/*
* GetFormPath
*/
/// <summary>
/// Builds a <see cref="T:System.Drawing.Drawing2D.GraphicsPath"/> according to the specified
/// bounds.
/// </summary>
/// <param name="bounds">Specifies form bounds.</param>
/// <returns></returns>
protected virtual GraphicsPath GetFormPath(RectangleF bounds)
{
Debug.Assert(this.HostForm != null, "this.HostForm != null");
if (this.HostForm != null && this.HostForm.WindowState == FormWindowState.Normal)
{
GraphicsPath gp = new GraphicsPath();
bool rightToLeft = this.HostForm.RightToLeft == RightToLeft.Yes;
/* Top-left corner */
NuGenRibbonFormPainter.AddArcFromDescriptor(
gp,
NuGenRibbonFormPainter.BuildArcDescriptor(
bounds,
rightToLeft
? this.RibbonFormProperties.TopRightCornerSize
: this.RibbonFormProperties.TopLeftCornerSize
,
NuGenCornerStyle.TopLeft)
);
/* Top-right corner */
NuGenRibbonFormPainter.AddArcFromDescriptor(
gp,
NuGenRibbonFormPainter.BuildArcDescriptor(
bounds,
rightToLeft
? this.RibbonFormProperties.TopLeftCornerSize
: this.RibbonFormProperties.TopRightCornerSize
,
NuGenCornerStyle.TopRight)
);
/* Bottom-right corner */
NuGenRibbonFormPainter.AddArcFromDescriptor(
gp,
NuGenRibbonFormPainter.BuildArcDescriptor(
bounds,
this.RibbonFormProperties.BottomRightCornerSize,
NuGenCornerStyle.BottomRight)
);
/* Bottom-left corner */
NuGenRibbonFormPainter.AddArcFromDescriptor(
gp,
NuGenRibbonFormPainter.BuildArcDescriptor(
bounds,
this.RibbonFormProperties.BottomLeftCornerSize,
NuGenCornerStyle.BottomLeft)
);
gp.CloseAllFigures();
return(gp);
}
else
{
GraphicsPath gp = new GraphicsPath();
gp.AddRectangle(bounds);
return(gp);
}
}
