notgne2/tuxpaint-pencil-sharpener
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Modularize, but disable for now, snapping

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It needs to be smarter than just snapping to NxN grid on canvas.
This commit is contained in:
Bill Kendrick 2024-01-14 11:50:36 -08:00
parent 474e513dde
commit 479cc5450f
1 changed files with 23 additions and 8 deletions
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31
magic/src/n_pt_persp.c
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@ -11,6 +11,9 @@
provided with an alternative vanishing point). And in
Novice mode, this plugin offers NO tools.
TODO - See if we can get `snap_to()` working for
axon. & oblique drawing modes.
by Bill Kendrick <bill@newbreedsoftware.com>
December 12, 2023 - January 14, 2024
@ -341,6 +344,7 @@ void n_pt_persp_switchout(magic_api * api, int which, int mode,
SDL_Surface * canvas);
void n_pt_persp_draw_points(magic_api * api, int tool, SDL_Surface * canvas);
void n_pt_persp_draw_one_point(magic_api * api, SDL_Surface * canvas, int x, int y, int i);
void snap_to(int which, int * x, int * y);
Uint32 n_pt_persp_api_version(void)
@ -588,8 +592,7 @@ void n_pt_persp_click(magic_api * api, int which, int mode ATTRIBUTE_UNUSED,
fflush(stdout);
#endif
x = (x / SNAP) * SNAP;
y = (y / SNAP) * SNAP;
snap_to(which, &x, &y);
tool = which_to_tool[which];
@ -761,10 +764,8 @@ void n_pt_persp_drag(magic_api * api, int which,
int i, x1, y1, x2, y2;
float slope;
old_x = (old_x / SNAP) * SNAP;
old_y = (old_y / SNAP) * SNAP;
x = (x / SNAP) * SNAP;
y = (y / SNAP) * SNAP;
snap_to(which, &old_x, &old_y);
snap_to(which, &x, &y);
#ifdef DEBUG
printf("\nn_pt_persp_drag\n");
@ -1343,8 +1344,7 @@ void n_pt_persp_release(magic_api * api, int which,
fflush(stdout);
#endif
x = (x / SNAP) * SNAP;
y = (y / SNAP) * SNAP;
snap_to(which, &x, &y);
which = which_to_tool[which];
@ -1753,3 +1753,18 @@ void n_pt_persp_draw_one_point(magic_api * api, SDL_Surface * canvas, int x, int
}
}
}
/* Snap to grids based on the tool */
void snap_to(int which, int * x, int * y) {
if (which == TOOL_ISO_DRAW) {
/* FIXME */
} else if (which == TOOL_DIM_DRAW) {
/* FIXME */
} else if (which == TOOL_TRI_DRAW) {
/* FIXME */
} else if (which == TOOL_OBLQ_DRAW || which == TOOL_OBLQ_DRAW_ALT) {
/* FIXME */
}
}