f836cc775a
Thoose changes were already in the SDL2 and android versions, they were reverted somehow...
221 lines
6.7 KiB
C
221 lines
6.7 KiB
C
/*
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metalpaint.c
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Metal Paint Magic Tool Plugin
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Tux Paint - A simple drawing program for children.
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Copyright (c) 2002-2008 by Bill Kendrick and others; see AUTHORS.txt
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bill@newbreedsoftware.com
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http://www.tuxpaint.org/
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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(See COPYING.txt)
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Last updated: July 8, 2008
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$Id$
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*/
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#include <stdio.h>
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#include <string.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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static Mix_Chunk *metalpaint_snd;
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static Uint8 metalpaint_r, metalpaint_g, metalpaint_b;
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Uint32 metalpaint_api_version(void);
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int metalpaint_init(magic_api * api);
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int metalpaint_get_tool_count(magic_api * api);
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SDL_Surface *metalpaint_get_icon(magic_api * api, int which);
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char *metalpaint_get_name(magic_api * api, int which);
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char *metalpaint_get_description(magic_api * api, int which, int mode);
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static void do_metalpaint(void *ptr, int which, SDL_Surface * canvas, SDL_Surface * last, int x, int y);
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void metalpaint_drag(magic_api * api, int which, SDL_Surface * canvas,
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SDL_Surface * last, int ox, int oy, int x, int y, SDL_Rect * update_rect);
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void metalpaint_click(magic_api * api, int which, int mode,
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SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect);
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void metalpaint_release(magic_api * api, int which,
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SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect);
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void metalpaint_shutdown(magic_api * api);
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void metalpaint_set_color(magic_api * api, Uint8 r, Uint8 g, Uint8 b);
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int metalpaint_requires_colors(magic_api * api, int which);
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void metalpaint_switchin(magic_api * api, int which, int mode, SDL_Surface * canvas);
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void metalpaint_switchout(magic_api * api, int which, int mode, SDL_Surface * canvas);
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int metalpaint_modes(magic_api * api, int which);
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Uint32 metalpaint_api_version(void)
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{
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return (TP_MAGIC_API_VERSION);
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}
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// No setup required:
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int metalpaint_init(magic_api * api)
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{
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char fname[1024];
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snprintf(fname, sizeof(fname), "%ssounds/magic/metalpaint.wav", api->data_directory);
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metalpaint_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 metalpaint_get_tool_count(magic_api * api ATTRIBUTE_UNUSED)
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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 *metalpaint_get_icon(magic_api * api, int which ATTRIBUTE_UNUSED)
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{
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char fname[1024];
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snprintf(fname, sizeof(fname), "%simages/magic/metalpaint.png", 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 *metalpaint_get_name(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
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{
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return (strdup(gettext_noop("Metal Paint")));
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}
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// Return our descriptions, localized:
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char *metalpaint_get_description(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED,
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int mode ATTRIBUTE_UNUSED)
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{
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return (strdup(gettext_noop("Click and drag the mouse to paint with a metallic color.")));
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}
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#define METALPAINT_CYCLE 32
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/* Based on 'Golden' gradient in The GIMP: */
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static int metalpaint_gradient[METALPAINT_CYCLE] = {
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56, 64, 73, 83, 93, 102, 113, 123,
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139, 154, 168, 180, 185, 189, 183, 174,
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164, 152, 142, 135, 129, 138, 149, 158,
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166, 163, 158, 149, 140, 122, 103, 82
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};
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// Do the effect:
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static void do_metalpaint(void *ptr, int which ATTRIBUTE_UNUSED, SDL_Surface * canvas,
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SDL_Surface * last ATTRIBUTE_UNUSED, 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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int n;
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Uint8 r, g, b;
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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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n = metalpaint_gradient[((x + xx + y + yy) / 4) % METALPAINT_CYCLE];
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r = (metalpaint_r * n) / 255;
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g = (metalpaint_g * n) / 255;
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b = (metalpaint_b * n) / 255;
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api->putpixel(canvas, x + xx, y + yy, SDL_MapRGB(canvas->format, r, g, b));
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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 metalpaint_drag(magic_api * api, int which, SDL_Surface * canvas,
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SDL_Surface * last, int ox, int oy, int x, int y, SDL_Rect * update_rect)
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{
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api->line((void *)api, which, canvas, last, ox, oy, x, y, 1, do_metalpaint);
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if (ox > x)
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{
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int tmp = ox;
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ox = x;
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x = tmp;
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}
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if (oy > y)
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{
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int tmp = oy;
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oy = y;
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y = tmp;
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}
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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(metalpaint_snd, (x * 255) / canvas->w, 255);
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}
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// Affect the canvas on click:
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void metalpaint_click(magic_api * api, int which, int mode ATTRIBUTE_UNUSED,
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SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect)
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{
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metalpaint_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 metalpaint_release(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED,
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SDL_Surface * canvas ATTRIBUTE_UNUSED, SDL_Surface * last ATTRIBUTE_UNUSED,
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int x ATTRIBUTE_UNUSED, int y ATTRIBUTE_UNUSED, SDL_Rect * update_rect ATTRIBUTE_UNUSED)
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{
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}
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// No setup happened:
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void metalpaint_shutdown(magic_api * api ATTRIBUTE_UNUSED)
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{
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if (metalpaint_snd != NULL)
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Mix_FreeChunk(metalpaint_snd);
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}
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// Record the color from Tux Paint:
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void metalpaint_set_color(magic_api * api ATTRIBUTE_UNUSED, Uint8 r, Uint8 g, Uint8 b)
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{
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metalpaint_r = min(255, r + 64);
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metalpaint_g = min(255, g + 64);
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metalpaint_b = min(255, b + 64);
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}
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// Use colors:
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int metalpaint_requires_colors(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
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{
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return 1;
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}
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void metalpaint_switchin(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED,
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SDL_Surface * canvas ATTRIBUTE_UNUSED)
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{
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}
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void metalpaint_switchout(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED,
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SDL_Surface * canvas ATTRIBUTE_UNUSED)
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{
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}
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int metalpaint_modes(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
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{
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return (MODE_PAINT);
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}
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