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/**
* $Id$
*
* ***** 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2008 Blender Foundation.
* All rights reserved.
*
*
* Contributor(s): Joshua Leung
*
* ***** END GPL LICENSE BLOCK *****
*/
#include <string.h>
#include <stdio.h>
#include <math.h>
#include "DNA_anim_types.h"
#include "DNA_action_types.h"
#include "DNA_curve_types.h"
#include "DNA_object_types.h"
#include "DNA_space_types.h"
#include "DNA_scene_types.h"
#include "DNA_screen_types.h"
#include "DNA_windowmanager_types.h"
#include "MEM_guardedalloc.h"
#include "BLI_blenlib.h"
#include "BKE_animsys.h"
#include "BKE_action.h"
#include "BKE_context.h"
#include "BKE_global.h"
#include "BKE_fcurve.h"
#include "BKE_main.h"
#include "BKE_nla.h"
#include "BKE_object.h"
#include "BKE_screen.h"
#include "BKE_utildefines.h"
#include "ED_anim_api.h"
#include "ED_keyframes_edit.h"
#include "ED_types.h"
#include "ED_util.h"
#include "WM_api.h"
#include "WM_types.h"
#include "BIF_gl.h"
#include "BIF_glutil.h"
#include "UI_interface.h"
#include "UI_resources.h"
#include "UI_view2d.h"
/* XXX */
extern void ui_rasterpos_safe(float x, float y, float aspect);
/* *************************************************** */
/* CURRENT FRAME DRAWING */
/* Draw current frame number in a little green box beside the current frame indicator */
static void draw_cfra_number (Scene *scene, View2D *v2d, float cfra, short time)
{
float xscale, yscale, x, y;
char str[32];
short slen;
/* because the frame number text is subject to the same scaling as the contents of the view */
UI_view2d_getscale(v2d, &xscale, &yscale);
glScalef(1.0f/xscale, 1.0f, 1.0f);
if (time) {
/* Timecode:
* - In general, minutes and seconds should be shown, as most clips will be
* within this length. Hours will only be included if relevant.
* - Only show frames when zoomed in enough for them to be relevant
* (using separator of '!' for frames).
* When showing frames, use slightly different display to avoid confusion with mm:ss format
* TODO: factor into reusable function.
* Meanwhile keep in sync:
* source/blender/editors/animation/anim_draw.c
* source/blender/editors/interface/view2d.c
*/
float val= FRA2TIME(CFRA);
int hours=0, minutes=0, seconds=0, frames=0;
char neg[2]= "";
/* get values */
if (val < 0) {
/* correction for negative values */
sprintf(neg, "-");
val = -val;
}
if (val >= 3600) {
/* hours */
/* XXX should we only display a single digit for hours since clips are
* VERY UNLIKELY to be more than 1-2 hours max? However, that would
* go against conventions...
*/
hours= (int)val / 3600;
val= (float)fmod(val, 3600);
}
if (val >= 60) {
/* minutes */
minutes= (int)val / 60;
val= (float)fmod(val, 60);
}
{
/* seconds + frames
* Frames are derived from 'fraction' of second. We need to perform some additional rounding
* to cope with 'half' frames, etc., which should be fine in most cases
*/
seconds= (int)val;
frames= (int)floor( ((val - seconds) * FPS) + 0.5f );
}
/* print timecode to temp string buffer */
if (hours) sprintf(str, " %s%02d:%02d:%02d!%02d", neg, hours, minutes, seconds, frames);
else if (minutes) sprintf(str, " %s%02d:%02d!%02d", neg, minutes, seconds, frames);
else sprintf(str, " %s%d!%02d", neg, seconds, frames);
}
else
sprintf(str, " %d", CFRA);
slen= (short)UI_GetStringWidth(str) - 1;
/* get starting coordinates for drawing */
x= cfra * xscale;
y= 18;
/* draw green box around/behind text */
UI_ThemeColorShade(TH_CFRAME, 0);
glRectf(x, y, x+slen, y+15);
/* draw current frame number - black text */
UI_ThemeColor(TH_TEXT);
UI_DrawString(x-5, y+3, str);
/* restore view transform */
glScalef(xscale, 1.0, 1.0);
}
/* General call for drawing current frame indicator in animation editor */
void ANIM_draw_cfra (const bContext *C, View2D *v2d, short flag)
{
Scene *scene= CTX_data_scene(C);
float vec[2];
/* Draw a light green line to indicate current frame */
vec[0]= (float)(scene->r.cfra * scene->r.framelen);
UI_ThemeColor(TH_CFRAME);
glLineWidth(2.0);
glBegin(GL_LINE_STRIP);
vec[1]= v2d->cur.ymin-500.0f; /* XXX arbitrary... want it go to bottom */
glVertex2fv(vec);
vec[1]= v2d->cur.ymax;
glVertex2fv(vec);
glEnd();
/* Draw dark green line if slow-parenting/time-offset is enabled */
if (flag & DRAWCFRA_SHOW_TIMEOFS) {
Object *ob= (scene->basact) ? (scene->basact->object) : 0;
// XXX ob->ipoflag is depreceated!
if ((ob) && (ob->ipoflag & OB_OFFS_OB) && (give_timeoffset(ob)!=0.0f)) {
vec[0]-= give_timeoffset(ob); /* could avoid calling twice */
UI_ThemeColorShade(TH_CFRAME, -30);
glBegin(GL_LINE_STRIP);
/*vec[1]= v2d->cur.ymax;*/ // this is set already. this line is only included
glVertex2fv(vec);
vec[1]= v2d->cur.ymin;
glVertex2fv(vec);
glEnd();
}
}
glLineWidth(1.0);
/* Draw current frame number in a little box */
if (flag & DRAWCFRA_SHOW_NUMBOX) {
UI_view2d_view_orthoSpecial(C, v2d, 1);
draw_cfra_number(scene, v2d, vec[0], (flag & DRAWCFRA_UNIT_SECONDS));
}
}
/* *************************************************** */
/* PREVIEW RANGE 'CURTAINS' */
/* Note: 'Preview Range' tools are defined in anim_ops.c */
/* Draw preview range 'curtains' for highlighting where the animation data is */
void ANIM_draw_previewrange (const bContext *C, View2D *v2d)
{
Scene *scene= CTX_data_scene(C);
/* only draw this if preview range is set */
if (scene->r.psfra) {
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
glColor4f(0.0f, 0.0f, 0.0f, 0.4f);
/* only draw two separate 'curtains' if there's no overlap between them */
if (PSFRA < PEFRA) {
glRectf(v2d->cur.xmin, v2d->cur.ymin, (float)PSFRA, v2d->cur.ymax);
glRectf((float)PEFRA, v2d->cur.ymin, v2d->cur.xmax, v2d->cur.ymax);
}
else {
glRectf(v2d->cur.xmin, v2d->cur.ymin, v2d->cur.xmax, v2d->cur.ymax);
}
glDisable(GL_BLEND);
}
}
/* *************************************************** */
/* NLA-MAPPING UTILITIES (required for drawing and also editing keyframes) */
/* Obtain the AnimData block providing NLA-mapping for the given channel (if applicable) */
AnimData *ANIM_nla_mapping_get(bAnimContext *ac, bAnimListElem *ale)
{
/* sanity checks */
if (ac == NULL)
return NULL;
/* handling depends on the type of animation-context we've got */
if (ale)
return ale->adt;
else
return NULL;
}
/* ------------------- */
/* helper function for ANIM_nla_mapping_apply_fcurve() -> "restore", i.e. mapping points back to action-time */
static short bezt_nlamapping_restore(BeztEditData *bed, BezTriple *bezt)
{
/* AnimData block providing scaling is stored in 'data', only_keys option is stored in i1 */
AnimData *adt= (AnimData *)bed->data;
short only_keys= (short)bed->i1;
/* adjust BezTriple handles only if allowed to */
if (only_keys == 0) {
bezt->vec[0][0]= BKE_nla_tweakedit_remap(adt, bezt->vec[0][0], NLATIME_CONVERT_UNMAP);
bezt->vec[2][0]= BKE_nla_tweakedit_remap(adt, bezt->vec[2][0], NLATIME_CONVERT_UNMAP);
}
bezt->vec[1][0]= BKE_nla_tweakedit_remap(adt, bezt->vec[1][0], NLATIME_CONVERT_UNMAP);
return 0;
}
/* helper function for ANIM_nla_mapping_apply_fcurve() -> "apply", i.e. mapping points to NLA-mapped global time */
static short bezt_nlamapping_apply(BeztEditData *bed, BezTriple *bezt)
{
/* AnimData block providing scaling is stored in 'data', only_keys option is stored in i1 */
AnimData *adt= (AnimData *)bed->data;
short only_keys= (short)bed->i1;
/* adjust BezTriple handles only if allowed to */
if (only_keys == 0) {
bezt->vec[0][0]= BKE_nla_tweakedit_remap(adt, bezt->vec[0][0], NLATIME_CONVERT_MAP);
bezt->vec[2][0]= BKE_nla_tweakedit_remap(adt, bezt->vec[2][0], NLATIME_CONVERT_MAP);
}
bezt->vec[1][0]= BKE_nla_tweakedit_remap(adt, bezt->vec[1][0], NLATIME_CONVERT_MAP);
return 0;
}
/* Apply/Unapply NLA mapping to all keyframes in the nominated F-Curve
* - restore = whether to map points back to non-mapped time
* - only_keys = whether to only adjust the location of the center point of beztriples
*/
void ANIM_nla_mapping_apply_fcurve (AnimData *adt, FCurve *fcu, short restore, short only_keys)
{
BeztEditData bed;
BeztEditFunc map_cb;
/* init edit data
* - AnimData is stored in 'data'
* - only_keys is stored in 'i1'
*/
memset(&bed, 0, sizeof(BeztEditData));
bed.data= (void *)adt;
bed.i1= (int)only_keys;
/* get editing callback */
if (restore)
map_cb= bezt_nlamapping_restore;
else
map_cb= bezt_nlamapping_apply;
/* apply to F-Curve */
ANIM_fcurve_keys_bezier_loop(&bed, fcu, NULL, map_cb, NULL);
}
/* *************************************************** */
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