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skin_engine: New tag to draw a rectangle (optionally with a gradient)

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%dr(x, y, width, height, [colour1[, colour2]]):
x,y - viewport relative pixel coordinates to start the rectangle.
width, height - obvious. can be '-' to fill the viewport
if both colours are left out the viewports foreground colour will be used
if one colour is specified it will fill the rectangle that colour.
if both colours are specified it will gradient fill the rectangle.

Change-Id: Iad451e99ded663bc7c5d182443659db7d909b388
This commit is contained in:
Jonathan Gordon 2012-03-15 22:50:17 +11:00
parent dcc78cb867
commit 014a08cabb
9 changed files with 105 additions and 6 deletions
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14
firmware/drivers/lcd-bitmap-common.c
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@ -41,14 +41,18 @@
#endif
#if defined(MAIN_LCD) && defined(HAVE_LCD_COLOR)
void lcd_gradient_fillrect(int x1, int x2, int y1, int y2,
void lcd_gradient_fillrect(int x, int y, int width, int height,
unsigned start_rgb, unsigned end_rgb)
{
int old_pattern = current_vp->fg_pattern;
int step_mul, i;
if (y2 - y1 == 0) return;
int x1, x2;
x1 = x;
x2 = x + width;
if (height == 0) return;
step_mul = (1 << 16) / (y2 - y1);
step_mul = (1 << 16) / height;
int h_r = RGB_UNPACK_RED(start_rgb);
int h_g = RGB_UNPACK_GREEN(start_rgb);
int h_b = RGB_UNPACK_BLUE(start_rgb);
@ -59,7 +63,7 @@ void lcd_gradient_fillrect(int x1, int x2, int y1, int y2,
h_g = (h_g << 16) + (1 << 15);
h_b = (h_b << 16) + (1 << 15);
for(i = y1; i < y2; i++) {
for(i = y; i < y + height; i++) {
current_vp->fg_pattern = LCD_RGBPACK(h_r >> 16, h_g >> 16, h_b >> 16);
lcd_hline(x1, x2, i);
h_r -= rstep;
@ -108,7 +112,7 @@ static void lcd_do_gradient_line(int x1, int x2, int y, unsigned h,
h_g -= h * gstep;
h_b -= h * bstep;
end_rgb = LCD_RGBPACK(h_r >> 16, h_g >> 16, h_b >> 16);
lcd_gradient_fillrect(x1, x2, y, y + h, start_rgb, end_rgb);
lcd_gradient_fillrect(x1, y, x2 - x1, h, start_rgb, end_rgb);
}
#endif