"Clone" magic tool
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Bill Kendrick
parent
3b16897586
commit
1cb04f1e0a
11 changed files with 304 additions and 12 deletions
256
magic/src/clone.c
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256
magic/src/clone.c
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/*
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clone.c
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Clone tool paintbrush Magic Tools Plugin
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Tux Paint - A simple drawing program for children.
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Copyright (c) 2021 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: January 10, 2021
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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 <math.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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/* What tools we contain: */
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enum
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{
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TOOL_CLONE,
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NUM_TOOLS
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};
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/* Tool states: */
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enum
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{
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CLONE_READY_TO_START,
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CLONE_STARTING,
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CLONE_CLONING
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};
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/* Our globals: */
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static Mix_Chunk *clone_snd;
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int clone_state;
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int clone_src_x, clone_src_y;
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int clone_drag_start_x, clone_drag_start_y;
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/* Local function prototype: */
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int clone_init(magic_api * api);
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Uint32 clone_api_version(void);
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int clone_get_tool_count(magic_api * api);
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SDL_Surface *clone_get_icon(magic_api * api, int which);
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char *clone_get_name(magic_api * api, int which);
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char *clone_get_description(magic_api * api, int which, int mode);
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void clone_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 clone_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 clone_release(magic_api * api, int which, SDL_Surface * canvas, SDL_Surface * last, int x, int y, SDL_Rect * update_rect);
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void clone_shutdown(magic_api * api);
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void clone_set_color(magic_api * api, Uint8 r, Uint8 g, Uint8 b);
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int clone_requires_colors(magic_api * api, int which);
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void clone_switchin(magic_api * api, int which, int mode, SDL_Surface * canvas);
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void clone_switchout(magic_api * api, int which, int mode, SDL_Surface * canvas);
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int clone_modes(magic_api * api, int which);
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// No setup required:
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int clone_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/clone.ogg", api->data_directory);
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clone_snd = Mix_LoadWAV(fname);
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clone_state = CLONE_READY_TO_START;
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return (1);
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}
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Uint32 clone_api_version(void)
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{
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return (TP_MAGIC_API_VERSION);
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}
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// We have multiple tools:
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int clone_get_tool_count(magic_api * api ATTRIBUTE_UNUSED)
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{
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return (NUM_TOOLS);
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}
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// Load our icons:
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SDL_Surface *clone_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), "%s/images/magic/clone.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 *clone_get_name(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
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{
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return (strdup(gettext_noop("Clone")));
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}
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// Return our descriptions, localized:
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char *clone_get_description(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
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{
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return (strdup(gettext_noop("Click once to pick a spot to begin cloning. Click again and drag to clone that part of the picture.")));
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return (NULL);
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}
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// Do the effect:
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static void do_clone(void *ptr, int which ATTRIBUTE_UNUSED, SDL_Surface * canvas, SDL_Surface * last, int x, int y)
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{
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magic_api *api = (magic_api *) ptr;
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Uint8 r, g, b;
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int xx, yy;
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int srcx, srcy;
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Uint32 pixel;
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srcx = clone_src_x + (x - clone_drag_start_x);
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srcy = clone_src_y + (y - clone_drag_start_y);
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for (yy = -16; yy < 16; yy++)
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{
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for (xx = -16; xx < 16; xx++)
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{
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if (api->in_circle(xx, yy, 16))
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{
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SDL_GetRGB(api->getpixel(last, srcx + xx, srcy + yy), last->format, &r, &g, &b);
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pixel = SDL_MapRGB(canvas->format, r, g, b);
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api->putpixel(canvas, x + xx, y + yy, pixel);
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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 clone_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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if (clone_state != CLONE_CLONING)
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return;
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clone_drag_start_x = ox;
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clone_drag_start_y = oy;
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api->line((void *)api, which, canvas, last, ox, oy, x, y, 1, do_clone);
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// do_clone((void *)api, which, canvas, last, x, y);
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clone_src_x += (x - ox);
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clone_src_y += (y - oy);
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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 = x - 64;
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update_rect->y = y - 64;
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update_rect->w = (ox + 128) - update_rect->x;
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update_rect->h = (oy + 128) - update_rect->h;
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api->playsound(clone_snd, (x * 255) / canvas->w, 255);
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}
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// Affect the canvas on click:
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void clone_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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if (clone_state == CLONE_READY_TO_START) {
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clone_src_x = x;
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clone_src_y = y;
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clone_state = CLONE_STARTING;
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} else if (clone_state == CLONE_CLONING) {
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clone_drag(api, which, canvas, last, x, y, x, y, update_rect);
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}
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}
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void clone_release(magic_api * api, 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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if (clone_state == CLONE_STARTING) {
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clone_state = CLONE_CLONING;
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} else {
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clone_state = CLONE_READY_TO_START;
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}
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api->stopsound();
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}
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// No setup happened:
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void clone_shutdown(magic_api * api ATTRIBUTE_UNUSED)
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{
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if (clone_snd != NULL)
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Mix_FreeChunk(clone_snd);
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}
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// Record the color from Tux Paint:
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void clone_set_color(magic_api * api ATTRIBUTE_UNUSED, Uint8 ATTRIBUTE_UNUSED r, Uint8 ATTRIBUTE_UNUSED g, Uint8 ATTRIBUTE_UNUSED b)
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{
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}
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// Use colors:
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int clone_requires_colors(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED)
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{
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return 0;
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}
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void clone_switchin(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED,
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int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED)
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{
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clone_state = CLONE_READY_TO_START;
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}
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void clone_switchout(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED,
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int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED)
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{
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clone_state = CLONE_READY_TO_START;
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}
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int clone_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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