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Magic tools can now be both painted and full-image.

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Negative tool now does this.
This commit is contained in:
William Kendrick 2008-07-09 02:46:54 +00:00
parent 8c6fbb8cf5
commit 472692fbab
38 changed files with 453 additions and 79 deletions
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38
magic/src/negative.c
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@ -23,7 +23,7 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
(See COPYING.txt)
Last updated: July 7, 2008
Last updated: July 8, 2008
$Id$
*/
@ -125,17 +125,43 @@ void negative_drag(magic_api * api, int which, SDL_Surface * canvas,
update_rect->h = (y + 16) - update_rect->h;
api->playsound(negative_snd, (x * 255) / canvas->w, 255);
SDL_UnlockSurface(canvas);
SDL_UnlockSurface(last);
}
// Ask Tux Paint to call our 'do_negative()' callback at a single point
void negative_click(magic_api * api, int which,
void negative_click(magic_api * api, int which, int mode,
SDL_Surface * canvas, SDL_Surface * last,
int x, int y, SDL_Rect * update_rect)
{
negative_drag(api, which, canvas, last, x, y, x, y, update_rect);
if (mode == MODE_PAINT)
negative_drag(api, which, canvas, last, x, y, x, y, update_rect);
else
{
int xx, yy;
Uint8 r, g, b;
for (yy = 0; yy < canvas->h; yy++)
{
for (xx = 0; xx < canvas->w; xx++)
{
SDL_GetRGB(api->getpixel(last, xx, yy), last->format, &r, &g, &b);
r = 0xFF - r;
g = 0xFF - g;
b = 0xFF - b;
api->putpixel(canvas, xx, yy, SDL_MapRGB(canvas->format, r, g, b));
}
}
update_rect->x = 0;
update_rect->y = 0;
update_rect->w = canvas->w;
update_rect->h = canvas->h;
}
}
@ -171,3 +197,7 @@ void negative_switchout(magic_api * api, int which, SDL_Surface * canvas)
{
}
int negative_modes(magic_api * api, int which)
{
return(MODE_PAINT | MODE_FULLSCREEN);
}