|
public Ellipse ( |
||
| hdc | ||
| nLeftRect | int | |
| nTopRect | int | |
| nRightRect | int | |
| nBottomRect | int | |
| return | bool | |
protected override bool OnExposeEvent(Gdk.EventExpose args)
{
using (Context cg = Gdk.CairoHelper.Create(args.Window))
{
Win32GDI GDI_Win32 = Win32GDI.getInstance();
if (GDI_Win32.isAvailable())
{
System.Drawing.Graphics wg = Gtk.DotNet.Graphics.FromDrawable(this.GdkWindow, true);
IntPtr hdc = wg.GetHdc();
int i = 0;
int n = 3;
int w = 16;
int h = 16;
Rect[] rects = new Rect[n];
/* Test Case 1 */
rects[i].x1 = 0;
rects[i].y1 = 0;
rects[i].x2 = w;
rects[i].y2 = h;
i++;
/* Test Case 2 */
rects[i].x1 = w * i + 3;
rects[i].y1 = 0;
rects[i].x2 = w * (i + 1) - 3;
rects[i].y2 = h;
i++;
/* Test Case 3 */
rects[i].x1 = w * i;
rects[i].y1 = 0 + 3;
rects[i].x2 = w * (i + 1);
rects[i].y2 = h - 3;
i++;
/* Fill Area with White */
cg.Color = new Cairo.Color(255, 255, 255);
Cairo.Rectangle rect = new Cairo.Rectangle(0, 0, n * w, h);
cg.Rectangle(rect);
cg.Fill();
cg.Stroke();
IntPtr blackSolidBrush = GDI_Win32.CreateSolidBrush(0);
IntPtr oldBrush = GDI_Win32.SelectObject(hdc, blackSolidBrush);
for (i = 0; i < n; i++)
{
GDI_Win32.Ellipse(hdc, rects[i].x1, rects[i].y1, rects[i].x2, rects[i].y2);
dumpText += "unsigned char ellipse_case_" + (i + 1) + "[" + w * h + "] = \n";
dumpText += dumpPixelArea(GDI_Win32, hdc, i * w, 0, w, h) + "\n";
}
}
}
return(true);
}