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String magics: update to new plugin API; use XOR

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String 'V' and String corner magic tools preview with XOR effect.
This commit is contained in:
Bill Kendrick 2023-04-19 22:08:14 -07:00
parent 98b86cf0f0
commit 55cdd3b49c
2 changed files with 45 additions and 12 deletions
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53
magic/src/string.c
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@ -1,7 +1,7 @@
/*
Strings -- draws string art.
Last updated: February 12, 2023
Last updated: April 19, 2023
*/
#include "tp_magic_api.h"
#include "SDL_image.h"
@ -27,6 +27,8 @@ Mix_Chunk *string_snd[STRING_NUMTOOLS];
void string_callback(void *ptr, int which_tool, SDL_Surface * canvas,
SDL_Surface * snapshot, int x, int y);
void string_callback_xor(void *ptr, int which_tool, SDL_Surface * canvas,
SDL_Surface * snapshot, int x, int y);
void string_draw_triangle(magic_api * api, int which, SDL_Surface * canvas,
SDL_Surface * snapshot, int ox, int oy, int x,
int y, SDL_Rect * update_rect);
@ -71,7 +73,7 @@ int string_requires_colors(magic_api * api, int which);
void string_release(magic_api * api, int which,
SDL_Surface * canvas, SDL_Surface * snapshot, int x,
int y, SDL_Rect * update_rect);
int string_init(magic_api * api);
int string_init(magic_api * api, Uint32 disabled_features);
void string_shutdown(magic_api * api);
void string_switchin(magic_api * api, int which, int mode,
SDL_Surface * canvas, SDL_Surface * snapshot);
@ -80,6 +82,9 @@ void string_switchout(magic_api * api, int which, int mode,
void string_click(magic_api * api, int which, int mode, SDL_Surface * canvas,
SDL_Surface * snapshot, int x, int y,
SDL_Rect * update_rect);
Uint8 string_accepted_sizes(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED);
Uint8 string_default_size(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED);
void string_set_size(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED, SDL_Surface * last ATTRIBUTE_UNUSED, Uint8 size ATTRIBUTE_UNUSED, SDL_Rect * update_rect ATTRIBUTE_UNUSED);
// Required functions
@ -207,7 +212,7 @@ void string_release(magic_api * api, int which,
}
}
int string_init(magic_api * api ATTRIBUTE_UNUSED)
int string_init(magic_api * api, Uint32 disabled_features ATTRIBUTE_UNUSED)
{
char fname[1024];
@ -276,6 +281,15 @@ void string_callback(void *ptr, int which ATTRIBUTE_UNUSED,
255));
}
void string_callback_xor(void *ptr, int which ATTRIBUTE_UNUSED,
SDL_Surface * canvas,
SDL_Surface * snapshot ATTRIBUTE_UNUSED, int x, int y)
{
magic_api *api = (magic_api *) ptr;
api->xorpixel(canvas, x, y);
}
void string_click(magic_api * api, int which, int mode ATTRIBUTE_UNUSED,
SDL_Surface * canvas, SDL_Surface * snapshot, int x, int y,
@ -416,13 +430,13 @@ void string_draw_triangle_preview(magic_api * api, int which,
compute_middle(y, string_oy, string_oy, &middle_y);
api->line((void *) api, which, canvas, snapshot, string_ox, string_oy,
string_ox, y, 1, string_callback);
string_ox, y, 1, string_callback_xor);
api->line((void *) api, which, canvas, snapshot, string_ox, string_oy, x,
string_oy, 1, string_callback);
string_oy, 1, string_callback_xor);
api->line((void *) api, which, canvas, snapshot, middle_x, middle_y, x,
string_oy, 1, string_callback);
string_oy, 1, string_callback_xor);
api->line((void *) api, which, canvas, snapshot, string_ox, y, middle_x,
middle_y, 1, string_callback);
middle_y, 1, string_callback_xor);
}
void string_draw_angle_preview(magic_api * api, int which,
@ -441,7 +455,7 @@ void string_draw_angle_preview(magic_api * api, int which,
SDL_BlitSurface(canvas_backup, update_rect, canvas, update_rect);
api->line((void *) api, which, canvas, snapshot, string_ox, string_oy,
string_vertex_x, string_vertex_y, 1, string_callback);
string_vertex_x, string_vertex_y, 1, string_callback_xor);
if (!string_vertex_done)
{
// if(!string_vertex_done) // maybe we face small children, draw square angles aligned to the drag
@ -456,12 +470,11 @@ void string_draw_angle_preview(magic_api * api, int which,
compute_middle(string_oy, y, string_vertex_y, &middle_y);
api->line((void *) api, which, canvas, snapshot, string_vertex_x,
string_vertex_y, x, y, 1, string_callback);
string_vertex_y, x, y, 1, string_callback_xor);
api->line((void *) api, which, canvas, snapshot, string_ox, string_oy,
middle_x, middle_y, 1, string_callback);
middle_x, middle_y, 1, string_callback_xor);
api->line((void *) api, which, canvas, snapshot, x, y, middle_x, middle_y,
1, string_callback);
1, string_callback_xor);
}
void string_draw_angle(magic_api * api, int which ATTRIBUTE_UNUSED,
@ -570,3 +583,19 @@ void string_drag(magic_api * api, int which,
}
}
Uint8 string_accepted_sizes(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
{
return 0;
}
Uint8 string_default_size(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED)
{
return 0;
}
void string_set_size(magic_api * api ATTRIBUTE_UNUSED, int which ATTRIBUTE_UNUSED, int mode ATTRIBUTE_UNUSED, SDL_Surface * canvas ATTRIBUTE_UNUSED, SDL_Surface * last ATTRIBUTE_UNUSED, Uint8 size ATTRIBUTE_UNUSED, SDL_Rect * update_rect ATTRIBUTE_UNUSED)
{
}