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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2009 by Nicholas Bishop
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/blenkernel/intern/paint.c
* \ingroup bke
*/
#include "DNA_object_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_scene_types.h"
#include "DNA_brush_types.h"
#include "BLI_bitmap.h"
#include "BLI_utildefines.h"
#include "BKE_brush.h"
#include "BKE_library.h"
#include "BKE_paint.h"
#include "BKE_subsurf.h"
#include <stdlib.h>
#include <string.h>
const char PAINT_CURSOR_SCULPT[3] = {255, 100, 100};
const char PAINT_CURSOR_VERTEX_PAINT[3] = {255, 255, 255};
const char PAINT_CURSOR_WEIGHT_PAINT[3] = {200, 200, 255};
const char PAINT_CURSOR_TEXTURE_PAINT[3] = {255, 255, 255};
Paint *paint_get_active(Scene *sce)
{
if (sce) {
ToolSettings *ts = sce->toolsettings;
if (sce->basact && sce->basact->object) {
switch(sce->basact->object->mode) {
case OB_MODE_SCULPT:
return &ts->sculpt->paint;
case OB_MODE_VERTEX_PAINT:
return &ts->vpaint->paint;
case OB_MODE_WEIGHT_PAINT:
return &ts->wpaint->paint;
case OB_MODE_TEXTURE_PAINT:
return &ts->imapaint.paint;
case OB_MODE_EDIT:
if (ts->use_uv_sculpt)
return &ts->uvsculpt->paint;
else
return &ts->imapaint.paint;
}
}
/* default to image paint */
return &ts->imapaint.paint;
}
return NULL;
}
Brush *paint_brush(Paint *p)
{
return p ? p->brush : NULL;
}
void paint_brush_set(Paint *p, Brush *br)
{
if (p) {
id_us_min((ID *)p->brush);
id_us_plus((ID *)br);
p->brush= br;
}
}
/* are we in vertex paint or weight pain face select mode? */
int paint_facesel_test(Object *ob)
{
return ( (ob != NULL) &&
(ob->type == OB_MESH) &&
(ob->data != NULL) &&
(((Mesh *)ob->data)->editflag & ME_EDIT_PAINT_MASK) &&
(ob->mode & (OB_MODE_VERTEX_PAINT|OB_MODE_WEIGHT_PAINT|OB_MODE_TEXTURE_PAINT))
);
}
/* are we in weight paint vertex select mode? */
int paint_vertsel_test(Object *ob)
{
return ( (ob != NULL) &&
(ob->type == OB_MESH) &&
(ob->data != NULL) &&
(((Mesh *)ob->data)->editflag & ME_EDIT_VERT_SEL) &&
(ob->mode & OB_MODE_WEIGHT_PAINT)
);
}
void paint_init(Paint *p, const char col[3])
{
Brush *brush;
/* If there's no brush, create one */
brush = paint_brush(p);
if (brush == NULL)
brush= add_brush("Brush");
paint_brush_set(p, brush);
memcpy(p->paint_cursor_col, col, 3);
p->paint_cursor_col[3] = 128;
p->flags |= PAINT_SHOW_BRUSH;
}
void free_paint(Paint *paint)
{
id_us_min((ID *)paint->brush);
}
/* called when copying scene settings, so even if 'src' and 'tar' are the same
* still do a id_us_plus(), rather then if we were copying betweem 2 existing
* scenes where a matching value should decrease the existing user count as
* with paint_brush_set() */
void copy_paint(Paint *src, Paint *tar)
{
tar->brush= src->brush;
id_us_plus((ID *)tar->brush);
}
/* returns non-zero if any of the face's vertices
* are hidden, zero otherwise */
int paint_is_face_hidden(const MFace *f, const MVert *mvert)
{
return ((mvert[f->v1].flag & ME_HIDE) ||
(mvert[f->v2].flag & ME_HIDE) ||
(mvert[f->v3].flag & ME_HIDE) ||
(f->v4 && (mvert[f->v4].flag & ME_HIDE)));
}
/* returns non-zero if any of the corners of the grid
* face whose inner corner is at (x,y) are hidden,
* zero otherwise */
int paint_is_grid_face_hidden(const unsigned int *grid_hidden,
int gridsize, int x, int y)
{
/* skip face if any of its corners are hidden */
return (BLI_BITMAP_GET(grid_hidden, y * gridsize + x) ||
BLI_BITMAP_GET(grid_hidden, y * gridsize + x+1) ||
BLI_BITMAP_GET(grid_hidden, (y+1) * gridsize + x+1) ||
BLI_BITMAP_GET(grid_hidden, (y+1) * gridsize + x));
}
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