notgne2/tuxpaint-pencil-sharpener
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Improved 'New' and 'Open' interfaces. ('Open' dialog no longer includes

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Starter images; 'New' now brings up a selection dialog showing 'Starter'
images and color choices.)
New images can be given solid background colors (which the 'Eraser' tool
erases to).
Improved --usage output.
Added support for "--papersize help" to list papersizes available via libpaper.
Some Magic tools that apply an affect once per click-and-drag no longer
recalculate the effect on pixels that have already been affected (until mouse
button is released and clicked again).
This commit is contained in:
William Kendrick 2007-07-24 18:20:17 +00:00
parent cd17a10a32
commit 6e827f67fe
9 changed files with 1280 additions and 296 deletions
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15
magic/src/tint.c
View file

@ -75,19 +75,22 @@ void do_tint(void * ptr, int which, SDL_Surface * canvas, SDL_Surface * last,
{
if (api->in_circle(xx - x, yy - y, 16))
{
/* Get original pixel: */
if (!api->touched(xx, yy))
{
/* Get original pixel: */
SDL_GetRGB(api->getpixel(last, xx, yy), last->format, &r, &g, &b);
SDL_GetRGB(api->getpixel(last, xx, yy), last->format, &r, &g, &b);
old = api->sRGB_to_linear(r) * 0.2126 +
api->sRGB_to_linear(g) * 0.7152 +
api->sRGB_to_linear(b) * 0.0722;
old = api->sRGB_to_linear(r) * 0.2126 +
api->sRGB_to_linear(g) * 0.7152 +
api->sRGB_to_linear(b) * 0.0722;
api->putpixel(canvas, xx, yy,
api->putpixel(canvas, xx, yy,
SDL_MapRGB(canvas->format,
api->linear_to_sRGB(rd * old),
api->linear_to_sRGB(gd * old),
api->linear_to_sRGB(bd * old)));
}
}
}
}