protected void OnPaintTitleBarBackground(Graphics g)
{
// fix: draw grayscale titlebar when disabled
// Brad Jones ([email protected])
// 20/08/2004
// v1.21
int y = 0;
// work out where the top of the titleBar actually is
if (this.HeaderHeight > this.TitleBarHeight)
{
y = this.HeaderHeight - this.TitleBarHeight;
}
if (this.CustomHeaderSettings.TitleGradient && !this.AnyCustomTitleGradientsEmpty)
{
// gradient titlebar
Color start = this.CustomHeaderSettings.NormalGradientStartColor;
if (this.SpecialGroup)
{
start = this.CustomHeaderSettings.SpecialGradientStartColor;
}
Color end = this.CustomHeaderSettings.NormalGradientEndColor;
if (this.SpecialGroup)
{
end = this.CustomHeaderSettings.SpecialGradientEndColor;
}
if (!this.Enabled)
{
// simulate saturation of 0
start = Color.FromArgb((int) (start.GetBrightness() * 255),
(int) (start.GetBrightness() * 255),
(int) (start.GetBrightness() * 255));
end = Color.FromArgb((int) (end.GetBrightness() * 255),
(int) (end.GetBrightness() * 255),
(int) (end.GetBrightness() * 255));
}
using (LinearGradientBrush brush = new LinearGradientBrush(this.TitleBarRectangle, start, end, LinearGradientMode.Horizontal))
{
// work out where the gradient starts
if (this.CustomHeaderSettings.GradientOffset > 0f && this.CustomHeaderSettings.GradientOffset < 1f)
{
ColorBlend colorBlend = new ColorBlend() ;
colorBlend.Colors = new Color [] {brush.LinearColors[0], brush.LinearColors[0], brush.LinearColors[1]} ;
colorBlend.Positions = new float [] {0f, this.CustomHeaderSettings.GradientOffset, 1f} ;
brush.InterpolationColors = colorBlend ;
}
// check if we need round corners
if (this.CustomHeaderSettings.TitleRadius > 0)
{
GraphicsPath path = new GraphicsPath();
// top
path.AddLine(this.TitleBarRectangle.Left + this.CustomHeaderSettings.TitleRadius,
this.TitleBarRectangle.Top,
this.TitleBarRectangle.Right - (this.CustomHeaderSettings.TitleRadius * 2) - 1,
this.TitleBarRectangle.Top);
// right corner
path.AddArc(this.TitleBarRectangle.Right - (this.CustomHeaderSettings.TitleRadius * 2) - 1,
this.TitleBarRectangle.Top,
this.CustomHeaderSettings.TitleRadius * 2,
this.CustomHeaderSettings.TitleRadius * 2,
270,
90);
// right
path.AddLine(this.TitleBarRectangle.Right,
this.TitleBarRectangle.Top + this.CustomHeaderSettings.TitleRadius,
this.TitleBarRectangle.Right,
this.TitleBarRectangle.Bottom);
// bottom
path.AddLine(this.TitleBarRectangle.Right,
this.TitleBarRectangle.Bottom,
this.TitleBarRectangle.Left - 1,
this.TitleBarRectangle.Bottom);
// left corner
path.AddArc(this.TitleBarRectangle.Left,
this.TitleBarRectangle.Top,
this.CustomHeaderSettings.TitleRadius * 2,
this.CustomHeaderSettings.TitleRadius * 2,
180,
90);
g.SmoothingMode = SmoothingMode.AntiAlias;
g.FillPath(brush, path);
g.SmoothingMode = SmoothingMode.Default;
}
else
{
g.FillRectangle(brush, this.TitleBarRectangle);
}
}
}
else if (this.TitleBackImage != null)
{
// check if the system header background images have different
// RightToLeft values compared to what we do. if they are different,
// then we had better mirror them
if ((this.RightToLeft == RightToLeft.Yes && !this.SystemSettings.Header.RightToLeft) ||
(this.RightToLeft == RightToLeft.No && this.SystemSettings.Header.RightToLeft))
{
if (this.SystemSettings.Header.NormalBackImage != null)
{
this.SystemSettings.Header.NormalBackImage.RotateFlip(RotateFlipType.RotateNoneFlipX);
}
if (this.SystemSettings.Header.SpecialBackImage != null)
{
this.SystemSettings.Header.SpecialBackImage.RotateFlip(RotateFlipType.RotateNoneFlipX);
}
this.SystemSettings.Header.RightToLeft = (this.RightToLeft == RightToLeft.Yes);
}
if (this.Enabled)
{
if (this.SystemSettings.OfficialTheme)
{
// left edge
g.DrawImage(this.TitleBackImage,
new Rectangle(0, y, 5, this.TitleBarHeight),
new Rectangle(0, 0, 5, this.TitleBackImage.Height),
GraphicsUnit.Pixel);
// right edge
g.DrawImage(this.TitleBackImage,
new Rectangle(this.Width-5, y, 5, this.TitleBarHeight),
new Rectangle(this.TitleBackImage.Width-5, 0, 5, this.TitleBackImage.Height),
GraphicsUnit.Pixel);
// middle
g.DrawImage(this.TitleBackImage,
new Rectangle(5, y, this.Width-10, this.TitleBarHeight),
new Rectangle(5, 0, this.TitleBackImage.Width-10, this.TitleBackImage.Height),
GraphicsUnit.Pixel);
}
else
{
g.DrawImage(this.TitleBackImage, 0, y, this.Width, this.TitleBarHeight);
}
}
else
{
if (this.SystemSettings.OfficialTheme)
{
using (Image image = new Bitmap(this.Width, this.TitleBarHeight))
{
using (Graphics g2 = Graphics.FromImage(image))
{
// left edge
g2.DrawImage(this.TitleBackImage,
new Rectangle(0, y, 5, this.TitleBarHeight),
new Rectangle(0, 0, 5, this.TitleBackImage.Height),
GraphicsUnit.Pixel);
// right edge
g2.DrawImage(this.TitleBackImage,
new Rectangle(this.Width-5, y, 5, this.TitleBarHeight),
new Rectangle(this.TitleBackImage.Width-5, 0, 5, this.TitleBackImage.Height),
GraphicsUnit.Pixel);
// middle
g2.DrawImage(this.TitleBackImage,
new Rectangle(5, y, this.Width-10, this.TitleBarHeight),
new Rectangle(5, 0, this.TitleBackImage.Width-10, this.TitleBackImage.Height),
GraphicsUnit.Pixel);
}
ControlPaint.DrawImageDisabled(g, image, 0, y, this.TitleBackColor);
}
}
else
{
// first stretch the background image for ControlPaint.
using (Image image = new Bitmap(this.TitleBackImage, this.Width, this.TitleBarHeight))
{
ControlPaint.DrawImageDisabled(g, image, 0, y, this.TitleBackColor);
}
}
}
}
else
{
// single color titlebar
using (SolidBrush brush = new SolidBrush(this.TitleBackColor))
{
g.FillRectangle(brush, 0, y, this.Width, this.TitleBarHeight);
}
}
}
