internal protected virtual void OnPaintScrollBarThumb(
PaintScrollBarThumbEventArgs e)
{
bool bEnabled = e.Enabled;
if (!bEnabled)
{
return;
}
Graphics g = e.Graphics;
Rectangle rect = e.ThumbRectangle;
ControlState controlState = e.ControlState;
Color backColor = BackNormal;
Color baseColor = Base;
Color borderColor = Border;
Color innerBorderColor = InnerBorder;
bool changeColor = false;
switch (controlState)
{
case ControlState.Hover:
baseColor = BackHover;
break;
case ControlState.Pressed:
baseColor = BackPressed;
changeColor = true;
break;
default:
baseColor = Base;
break;
}
using (SmoothingModeGraphics sg = new SmoothingModeGraphics(g))
{
ControlPaintEx.DrawScrollBarThumb(
g,
rect,
baseColor,
backColor,
borderColor,
innerBorderColor,
e.Orientation,
changeColor);
}
}
private void DrawScrollBar(
IntPtr maskHWnd,
Rectangle bounds,
Rectangle trackRect,
Rectangle topLeftArrowRect,
Rectangle bottomRightArrowRect,
Rectangle thumbRect,
ControlState topLeftArrowState,
ControlState bottomRightArrowState,
ControlState thumbState,
Orientation direction)
{
bool bHorizontal = direction == Orientation.Horizontal;
ArrowDirection arrowDirection;
bool bEnabled = _owner.Enabled;
IScrollBarPaint paint = _owner as IScrollBarPaint;
if (paint == null)
{
return;
}
ImageDc tempDc = new ImageDc(bounds.Width, bounds.Height);
IntPtr hdc = NativeMethods.GetDC(maskHWnd);
try
{
using (Graphics g = Graphics.FromHdc(tempDc.Hdc))
{
using (PaintScrollBarTrackEventArgs te =
new PaintScrollBarTrackEventArgs(
g,
trackRect,
direction,
bEnabled))
{
Graphics ge = te.Graphics;
Rectangle rect = te.TrackRectangle;
Color baseColor = GetGray(Color.Blue);
ControlPaintEx.DrawScrollBarTrack(
ge, rect, baseColor, Color.White, te.Orientation);
//paint.OnPaintScrollBarTrack(te);
}
arrowDirection = bHorizontal ?
ArrowDirection.Left : ArrowDirection.Up;
using (PaintScrollBarArrowEventArgs te =
new PaintScrollBarArrowEventArgs(
g,
topLeftArrowRect,
topLeftArrowState,
arrowDirection,
direction,
bEnabled))
{
paint.OnPaintScrollBarArrow(te);
}
arrowDirection = bHorizontal ?
ArrowDirection.Right : ArrowDirection.Down;
using (PaintScrollBarArrowEventArgs te =
new PaintScrollBarArrowEventArgs(
g,
bottomRightArrowRect,
bottomRightArrowState,
arrowDirection,
direction,
bEnabled))
{
paint.OnPaintScrollBarArrow(te);
}
using (PaintScrollBarThumbEventArgs te =
new PaintScrollBarThumbEventArgs(
g,
thumbRect,
thumbState,
direction,
bEnabled))
{
paint.OnPaintScrollBarThumb(te);
}
}
NativeMethods.BitBlt(
hdc,
0,
0,
bounds.Width,
bounds.Height,
tempDc.Hdc,
0,
0,
TernaryRasterOperations.SRCCOPY);
}
finally
{
NativeMethods.ReleaseDC(maskHWnd, hdc);
tempDc.Dispose();
}
}
protected internal virtual void OnPaintScrollBarThumb(
PaintScrollBarThumbEventArgs e)
{
bool bEnabled = e.Enabled;
if (!bEnabled)
{
return;
}
Graphics g = e.Graphics;
Rectangle rect = e.ThumbRectangle;
ControlState controlState = e.ControlState;
Color backColor = BackNormal;
Color baseColor = Base;
Color borderColor = Border;
Color innerBorderColor = InnerBorder;
bool changeColor = false;
switch (controlState)
{
case ControlState.Hover:
baseColor = BackHover;
break;
case ControlState.Pressed:
baseColor = BackPressed;
changeColor = true;
break;
default:
baseColor = Base;
break;
}
using (SmoothingModeGraphics sg = new SmoothingModeGraphics(g))
{
ControlPaintEx.DrawScrollBarThumb(
g,
rect,
baseColor,
backColor,
borderColor,
innerBorderColor,
e.Orientation,
changeColor);
}
}
void IScrollBarPaint.OnPaintScrollBarThumb(PaintScrollBarThumbEventArgs e)
{
OnPaintScrollBarThumb(e);
}
void IScrollBarPaint.OnPaintScrollBarThumb(PaintScrollBarThumbEventArgs e)
{
OnPaintScrollBarThumb(e);
}
private void DrawScrollBar(IntPtr maskHWnd, Rectangle bounds, Rectangle trackRect, Rectangle topLeftArrowRect, Rectangle bottomRightArrowRect, Rectangle thumbRect, ControlState topLeftArrowState, ControlState bottomRightArrowState, ControlState thumbState, Orientation direction)
{
bool bHorizontal = direction == Orientation.Horizontal;
bool bEnabled = this._owner.Enabled;
IScrollBarPaint paint = this._owner as IScrollBarPaint;
if (paint != null)
{
ImageDc tempDc = new ImageDc(bounds.Width, bounds.Height);
IntPtr hdc = CCWin.Win32.NativeMethods.GetDC(maskHWnd);
try
{
using (Graphics g = Graphics.FromHdc(tempDc.Hdc))
{
using (PaintScrollBarTrackEventArgs te = new PaintScrollBarTrackEventArgs(g, trackRect, direction, bEnabled))
{
paint.OnPaintScrollBarTrack(te);
}
ArrowDirection arrowDirection = bHorizontal ? ArrowDirection.Left : ArrowDirection.Up;
using (PaintScrollBarArrowEventArgs te = new PaintScrollBarArrowEventArgs(g, topLeftArrowRect, topLeftArrowState, arrowDirection, direction, bEnabled))
{
paint.OnPaintScrollBarArrow(te);
}
arrowDirection = bHorizontal ? ArrowDirection.Right : ArrowDirection.Down;
using (PaintScrollBarArrowEventArgs te = new PaintScrollBarArrowEventArgs(g, bottomRightArrowRect, bottomRightArrowState, arrowDirection, direction, bEnabled))
{
paint.OnPaintScrollBarArrow(te);
}
using (PaintScrollBarThumbEventArgs te = new PaintScrollBarThumbEventArgs(g, thumbRect, thumbState, direction, bEnabled))
{
paint.OnPaintScrollBarThumb(te);
}
}
CCWin.Win32.NativeMethods.BitBlt(hdc, 0, 0, bounds.Width, bounds.Height, tempDc.Hdc, 0, 0, 0xcc0020);
}
finally
{
CCWin.Win32.NativeMethods.ReleaseDC(maskHWnd, hdc);
tempDc.Dispose();
}
}
}