[DefaultEvent(
"ProgressClick"
)]
[ToolboxBitmap(
typeof
(TrackBar))]
public
partial
class
ProcessBar : UserControl
{
public
ProcessBar()
{
}
private
int
locationX=0;
[Description(
"单击时X的坐标"
)]
public
int
LocationX
{
get
{
return
locationX; }
}
private
int
current = 0;
[Description(
"当前进度"
)]
public
int
Current
{
get
{
return
current; }
set
{
if
(value > 232 || value < 0)
return
;
current = value;
panelCurrent.Size =
new
Size(value, 1);
picture.Location =
new
Point(value - 4, -3);
Invalidate();
}
}
private
bool
isPlay =
false
;
[Description(
"是否播放"
)]
public
bool
IsPlay
{
get
{
return
isPlay; }
set
{ isPlay = value; tmrCurrent.Enabled = isPlay; Invalidate(); }
}
public
delegate
void
MouseHandle(
object
sender,EventArgs e);
[Description(
"点下鼠标"
)]
public
event
MouseHandle BarMouseDown;
int
picturetype = 0;
private
void
tmrCurrent_Tick(
object
sender, EventArgs e)
{
if
(picturetype == 0)
{ picture.Image = Properties.Resources.play_slider_thumb; picturetype = 1; }
else
{ picture.Image = Properties.Resources.play_slider_thumb_animate; picturetype = 0; }
GraphicsPath g = subGraphicsPath(picture.Image);
if
(g ==
null
)
return
;
picture.Region =
new
Region(g);
}
private
unsafe
static
GraphicsPath subGraphicsPath(Image img)
{
if
(img ==
null
)
return
null
;
GraphicsPath g =
new
GraphicsPath(FillMode.Alternate);
Bitmap bitmap =
new
Bitmap(img);
int
width = bitmap.Width;
int
height = bitmap.Height;
BitmapData bmData = bitmap.LockBits(
new
Rectangle(0, 0, width, height), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
byte
* p = (
byte
*)bmData.Scan0;
int
offset = bmData.Stride - width * 3;
int
p0, p1, p2;
p0 = p[0];
p1 = p[1];
p2 = p[2];
int
start = -1;
for
(
int
Y = 0; Y < height; Y++)
{
for
(
int
X = 0; X < width; X++)
{
if
(start == -1 && (p[0] != p0 || p[1] != p1 || p[2] != p2))
{
start = X;
}
else
if
(start > -1 && (p[0] == p0 && p[1] == p1 && p[2] == p2))
{
g.AddRectangle(
new
Rectangle(start, Y, X - start, 1));
start = -1;
}
if
(X == width - 1 && start > -1)
{
g.AddRectangle(
new
Rectangle(start, Y, X - start + 1, 1));
start = -1;
}
p += 3;
}
p += offset;
} bitmap.UnlockBits(bmData);
bitmap.Dispose();
return
g;
}
private
void
panelTotal_MouseDown(
object
sender, MouseEventArgs e)
{
Current = e.Location.X;
locationX = e.Location.X;
if
(BarMouseDown !=
null
)
{
BarMouseDown.Invoke(sender, e);
}
}
private
void
panelCurrent_MouseDown(
object
sender, MouseEventArgs e)
{
Current = e.Location.X;
locationX = e.Location.X;
if
(BarMouseDown !=
null
)
{
BarMouseDown.Invoke(sender, e);
}
}
}