c4b3e49215
Added (not finished) (new) sparkles magic. Fixed printf localization bug in postscript printing. Got Text tool working when Pango is used.
148 lines
3.3 KiB
C
148 lines
3.3 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <libintl.h>
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#include "tp_magic_api.h"
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#include "SDL_image.h"
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#include "SDL_mixer.h"
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/* Our globals: */
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Mix_Chunk * sparkles_snd;
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Uint8 sparkles_r, sparkles_g, sparkles_b;
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Uint32 sparkles_api_version(void) { return(TP_MAGIC_API_VERSION); }
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// No setup required:
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int sparkles_init(magic_api * api)
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{
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char fname[1024];
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snprintf(fname, sizeof(fname), "%s/sounds/magic/sparkles.wav",
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api->data_directory);
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sparkles_snd = Mix_LoadWAV(fname);
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return(1);
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}
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// We have multiple tools:
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int sparkles_get_tool_count(magic_api * api)
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{
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return(1);
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}
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// Load our icons:
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SDL_Surface * sparkles_get_icon(magic_api * api, int which)
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{
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char fname[1024];
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snprintf(fname, sizeof(fname), "%s/images/magic/sparkles.png",
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api->data_directory);
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return(IMG_Load(fname));
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}
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// Return our names, localized:
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char * sparkles_get_name(magic_api * api, int which)
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{
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return(strdup(gettext("Sparkles")));
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}
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// Return our descriptions, localized:
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char * sparkles_get_description(magic_api * api, int which)
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{
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return(strdup(gettext("Click and drag to draw glowing sparkles on your picture.")));
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}
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// Do the effect:
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void do_sparkles(void * ptr, int which, SDL_Surface * canvas, SDL_Surface * last,
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int x, int y)
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{
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magic_api * api = (magic_api *) ptr;
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int xx, yy;
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Uint32 pix;
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Uint8 r, g, b;
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int div;
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for (yy = -8; yy < 8; yy++)
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{
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for (xx = -8; xx < 8; xx++)
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{
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if (api->in_circle(xx, yy, 8))
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{
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pix = api->getpixel(canvas, x + xx, y + yy);
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SDL_GetRGB(pix, canvas->format, &r, &g, &b);
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div = abs(xx * yy);
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if (div == 0)
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div = 1;
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r = min(255, r + (sparkles_r / div));
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g = min(255, g + (sparkles_g / div));
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b = min(255, b + (sparkles_b / div));
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api->putpixel(canvas, x + xx, y + yy,
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SDL_MapRGB(canvas->format, r, g, b));
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}
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}
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}
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}
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// Affect the canvas on drag:
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void sparkles_drag(magic_api * api, int which, SDL_Surface * canvas,
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SDL_Surface * last, int ox, int oy, int x, int y,
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SDL_Rect * update_rect)
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{
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api->line(which, canvas, last, ox, oy, x, y, 1, do_sparkles);
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if (ox > x) { int tmp = ox; ox = x; x = tmp; }
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if (oy > y) { int tmp = oy; oy = y; y = tmp; }
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update_rect->x = ox - 8;
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update_rect->y = oy - 8;
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update_rect->w = (x + 8) - update_rect->x;
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update_rect->h = (y + 8) - update_rect->h;
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api->playsound(sparkles_snd, (x * 255) / canvas->w, 255);
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}
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// Affect the canvas on click:
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void sparkles_click(magic_api * api, int which,
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SDL_Surface * canvas, SDL_Surface * last,
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int x, int y, SDL_Rect * update_rect)
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{
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sparkles_drag(api, which, canvas, last, x, y, x, y, update_rect);
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}
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// Affect the canvas on release:
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void sparkles_release(magic_api * api, int which,
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SDL_Surface * canvas, SDL_Surface * last,
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int x, int y, SDL_Rect * update_rect)
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{
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}
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// No setup happened:
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void sparkles_shutdown(magic_api * api)
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{
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if (sparkles_snd != NULL)
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Mix_FreeChunk(sparkles_snd);
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}
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// Record the color from Tux Paint:
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void sparkles_set_color(magic_api * api, Uint8 r, Uint8 g, Uint8 b)
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{
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sparkles_r = r + 10;
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sparkles_g = g + 10;
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sparkles_b = b + 10;
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}
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// Use colors:
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int sparkles_requires_colors(magic_api * api, int which)
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{
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return 1;
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}
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