/* waves.c Credits: Bill Kendrick (idea & Waves tool), Adam Rakowski (Wavelets tool) Waves Magic Tool Plugin Tux Paint - A simple drawing program for children. Copyright (c) 2002-2008 by Bill Kendrick and others; see AUTHORS.txt bill@newbreedsoftware.com http://www.tuxpaint.org/ This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA (See COPYING.txt) */ #include #include #include #include "tp_magic_api.h" #include "SDL_image.h" #include "SDL_mixer.h" /* Our globals: */ static Mix_Chunk * waves_snd[2]; /* Local function prototypes: */ Uint32 waves_api_version(void); int waves_init(magic_api * api); int waves_get_tool_count(magic_api * api); SDL_Surface * waves_get_icon(magic_api * api, int which); char * waves_get_name(magic_api * api, int which); char * waves_get_description(magic_api * api, int which, int mode); void waves_drag(magic_api * api, int which, SDL_Surface * canvas, SDL_Surface * last, int ox, int oy, int x, int y, SDL_Rect * update_rect); void waves_click(magic_api * api, int which, int mode, SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect); void waves_release(magic_api * api, int which, SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect); void waves_shutdown(magic_api * api); void waves_set_color(magic_api * api, Uint8 r, Uint8 g, Uint8 b); int waves_requires_colors(magic_api * api, int which); void waves_switchin(magic_api * api, int which, int mode, SDL_Surface * canvas); void waves_switchout(magic_api * api, int which, int mode, SDL_Surface * canvas); int waves_modes(magic_api * api, int which); Uint32 waves_api_version(void) { return(TP_MAGIC_API_VERSION); } // No setup required: int waves_init(magic_api * api) { char fname[1024]; snprintf(fname, sizeof(fname), "%s/sounds/magic/waves.ogg", api->data_directory); waves_snd[0] = Mix_LoadWAV(fname); snprintf(fname, sizeof(fname), "%s/sounds/magic/wavelet.ogg", api->data_directory); waves_snd[1] = Mix_LoadWAV(fname); return(1); } // We have multiple tools: int waves_get_tool_count(magic_api * api ATTRIBUTE_UNUSED) { return 2; } // Load our icons: SDL_Surface * waves_get_icon(magic_api * api, int which) { char fname[1024]; if (!which) snprintf(fname, sizeof(fname), "%s/images/magic/waves.png", api->data_directory); else snprintf(fname, sizeof(fname), "%s/images/magic/wavelet.png", api->data_directory); return(IMG_Load(fname)); } // Return our names, localized: char * waves_get_name(magic_api * api ATTRIBUTE_UNUSED, int which) { if (!which) return(strdup(gettext_noop("Waves"))); else return strdup(gettext_noop("Wavelets")); } // Return our descriptions, localized: char * waves_get_description(magic_api * api ATTRIBUTE_UNUSED, int which, int mode ATTRIBUTE_UNUSED) { if (!which) return(strdup(gettext_noop("Click to make the picture horizontally wavy. Click toward the top for shorter waves, the bottom for taller waves, the left for small waves, and the right for long waves."))); return strdup(gettext_noop("Click to make the picture vertically wavy. Click toward the top for shorter waves, the bottom for taller waves, the left for small waves, and the right for long waves.")); } void waves_drag(magic_api * api ATTRIBUTE_UNUSED, int which, SDL_Surface * canvas, SDL_Surface * last, int ox ATTRIBUTE_UNUSED, int oy ATTRIBUTE_UNUSED, int x, int y, SDL_Rect * update_rect) { int xx, yy; SDL_Rect src, dest; int width; int height; SDL_BlitSurface(last, NULL, canvas, NULL); if (which==0) { //waves effect width = ((x * 10) / canvas->w) + 10; height = ((canvas->h - y) / 10) + 1; for (yy = 0; yy < canvas->h; yy++) { xx = sin((yy * height) * M_PI / 180.0) * width; src.x = 0; src.y = yy; src.w = canvas->w; src.h = 1; dest.x = xx; dest.y = yy; SDL_BlitSurface(last, &src, canvas, &dest); } } else { width = ((x * 10) / canvas->w) + 10; height = ((canvas->h - y) / 10) + 1; for (xx = 0; xx < canvas->w; xx++) { yy = sin((xx * height) * M_PI / 180.0) * width; src.x = xx; src.y = 0; src.w = 1; src.h = canvas->h; dest.x = xx; dest.y = yy; SDL_BlitSurface(last, &src, canvas, &dest); } } update_rect->x = 0; update_rect->y = 0; update_rect->w = canvas->w; update_rect->h = canvas->h; } // Affect the canvas on click: void waves_click(magic_api * api, int which, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect) { waves_drag(api, which, canvas, last, x, y, x, y, update_rect); api->playsound(waves_snd[which], 128, 255); } // Affect the canvas on release: void waves_release(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED, SDL_Surface * last ATTRIBUTE_UNUSED, int x ATTRIBUTE_UNUSED, int y ATTRIBUTE_UNUSED, SDL_Rect * update_rect ATTRIBUTE_UNUSED) { } // No setup happened: void waves_shutdown(magic_api * api ATTRIBUTE_UNUSED) { if (waves_snd[0] != NULL) Mix_FreeChunk(waves_snd[0]); if (waves_snd[1] != NULL) Mix_FreeChunk(waves_snd[1]); } // Record the color from Tux Paint: void waves_set_color(magic_api * api ATTRIBUTE_UNUSED, Uint8 r ATTRIBUTE_UNUSED, Uint8 g ATTRIBUTE_UNUSED, Uint8 b ATTRIBUTE_UNUSED) { } // Use colors: int waves_requires_colors(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED) { return 0; } void waves_switchin(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED) { } void waves_switchout(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED) { } int waves_modes(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED) { return(MODE_PAINT); }