protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
if (disposing)
{
if (backImageDc != null)
{
backImageDc.Dispose();
backImageDc = null;
}
}
}
protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
if (disposing)
{
if (_backDc != null)
{
_backDc.Dispose();
_backDc = null;
}
if (!_titleFont.IsSystemFont)
{
_titleFont.Dispose();
}
_titleFont = null;
_image = null;
_colorTable = null;
}
}
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();
}
}
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 (System.Drawing.Graphics g = System.Drawing.Graphics.FromHdc(tempDc.Hdc))
{
using (PaintScrollBarTrackEventArgs te =
new PaintScrollBarTrackEventArgs(
g,
trackRect,
direction,
bEnabled))
{
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();
}
}
private void DrawTrackBar(IntPtr hWnd)
{
ControlState state = ControlState.Normal;
bool horizontal = base.Orientation == Orientation.Horizontal;
ImageDc tempDc = new ImageDc(base.Width, base.Height);
RECT trackRect = new RECT();
RECT thumbRect = new RECT();
System.Drawing.Graphics g = System.Drawing.Graphics.FromHdc(tempDc.Hdc);
NativeMethods.SendMessage(
hWnd, TBM.TBM_GETCHANNELRECT, 0, ref trackRect);
NativeMethods.SendMessage(
hWnd, TBM.TBM_GETTHUMBRECT, 0, ref thumbRect);
Rectangle trackRectangle = horizontal ?
trackRect.Rect :
Rectangle.FromLTRB(
trackRect.Top, trackRect.Left,
trackRect.Bottom, trackRect.Right);
if (ThumbHovering(thumbRect))
{
if (Helper.LeftKeyPressed())
{
state = ControlState.Pressed;
}
else
{
state = ControlState.Hover;
}
}
using (PaintEventArgs pe = new PaintEventArgs(
g, ClientRectangle))
{
OnRenderBackground(pe);
}
int ticks = NativeMethods.SendMessage(
hWnd, TBM.TBM_GETNUMTICS, 0, 0);
if (ticks > 0)
{
List<float> tickPosList = new List<float>(ticks);
int thumbOffset = horizontal ?
thumbRect.Rect.Width : thumbRect.Rect.Height;
int trackWidth = trackRect.Right - trackRect.Left;
float tickSpace = (trackWidth - thumbOffset) / (float)(ticks - 1);
float offset = trackRect.Left + thumbOffset / 2f;
for(int pos = 0; pos < ticks; pos ++)
{
tickPosList.Add(offset + tickSpace * pos);
}
using (PaintTickEventArgs pte = new PaintTickEventArgs(
g, trackRectangle, tickPosList))
{
OnRenderTick(pte);
}
}
using (PaintEventArgs pe = new PaintEventArgs(
g, trackRectangle))
{
OnRenderTrack(pe);
}
using (PaintThumbEventArgs pe = new PaintThumbEventArgs(
g, thumbRect.Rect, state))
{
OnRenderThumb(pe);
}
g.Dispose();
IntPtr hDC = NativeMethods.GetDC(hWnd);
NativeMethods.BitBlt(
hDC, 0, 0, base.Width, base.Height,
tempDc.Hdc, 0, 0, 0xCC0020);
NativeMethods.ReleaseDC(hWnd, hDC);
tempDc.Dispose();
}