void xsCanvasContext::drawImage(xsImage* image,float x, float y, float width, float height)
{
xsGraphics *gc = xsGetSystemGc();
float originW, originH;
xsGetImageDimension(image, &originW, &originH);
xsDrawImage(gc, image, x, y, width, height);
xsFlushScreen(x, y, x + width, y + height);
}
void xsCanvasContext::drawImage(xsImage* image,float x, float y)
{
xsGraphics *gc = xsGetSystemGc();
float originW, originH;
xsGetImageDimension(image, &originW, &originH);
xsDrawImage(gc, image, x, y, 0, 0);
xsRect clientRect;
xsFlushScreen(x, y, originW, originH);
}
void xsCanvasContext::drawImage(xsImage* image,float sx, float sy, float swidth, float sheight, float x, float y, float width, float height)
{
xsGraphics *gc = xsGetSystemGc();
xsRect clipRect;
clipRect.left = x;
clipRect.top = y;
clipRect.right = x + width;
clipRect.bottom = y + height;
xsSetClipRect(gc, &clipRect);
float originW, originH;
xsGetImageDimension(image, &originW, &originH);
xsDrawImage(gc, image, x - sx, y - sy, originW * width/swidth, originH*height/sheight);
xsResetClipRect(gc);
xsFlushScreen(clipRect.left, clipRect.top, clipRect.right, clipRect.bottom);
}
int DemoApp::onTimeout()
{
xsGraphics *gc = xsGetSystemGc();
// clear
xsColor color = {255, 255, 255, 255};
xsSetColor(gc, color);
xsFillRectangle(gc, x, y, BOX_SIZE, BOX_SIZE);//, xsArgbToColor(0xFFFFFFFF));
// draw new box
x += rateX;
y += rateY;
if (x < 0 || x + BOX_SIZE > width)
rateX = -rateX;
if (y < 0 || y + BOX_SIZE > height)
rateY = -rateY;
xsDrawImage(gc, img, x, y, 0, 0);
xsFlushScreen(0, 0, width - 1, height - 1);
return 0;
}
