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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2011 Blender Foundation.
* All rights reserved.
*
*
* Contributor(s): Blender Foundation,
* Sergey Sharybin
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/editors/space_clip/clip_draw_graph.c
* \ingroup spclip
*/
#include "DNA_movieclip_types.h"
#include "DNA_scene_types.h"
#include "DNA_object_types.h" /* SELECT */
#include "MEM_guardedalloc.h"
#include "BKE_context.h"
#include "BKE_movieclip.h"
#include "BKE_tracking.h"
#include "BLI_utildefines.h"
#include "BLI_math.h"
#include "BLI_string.h"
#include "ED_screen.h"
#include "ED_clip.h"
#include "BIF_gl.h"
#include "WM_types.h"
#include "UI_interface.h"
#include "UI_resources.h"
#include "UI_view2d.h"
#include "BLF_api.h"
#include "clip_intern.h" // own include
static void draw_graph_cfra(SpaceClip *sc, ARegion *ar, Scene *scene)
{
View2D *v2d= &ar->v2d;
uiStyle *style= UI_GetStyle();
int fontid= style->widget.uifont_id, fontsize;
float xscale, yscale, x, y;
char str[32] = " t"; /* t is the character to start replacing from */
short slen;
float vec[2];
/* Draw a light green line to indicate current frame */
vec[0]= (float)(sc->user.framenr * scene->r.framelen);
UI_ThemeColor(TH_CFRAME);
glLineWidth(2.0);
glBegin(GL_LINE_STRIP);
vec[1]= v2d->cur.ymin;
glVertex2fv(vec);
vec[1]= v2d->cur.ymax;
glVertex2fv(vec);
glEnd();
glLineWidth(1.0);
UI_view2d_view_orthoSpecial(ar, v2d, 1);
/* 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);
BLI_snprintf(&str[4], sizeof(str)-4, "%d", sc->user.framenr);
slen= BLF_width(fontid, str);
fontsize= BLF_height(fontid, str);
/* get starting coordinates for drawing */
x= (float)sc->user.framenr * xscale;
y= 18;
/* draw green box around/behind text */
UI_ThemeColorShade(TH_CFRAME, 0);
glRectf(x, y, x+slen, y+fontsize+4);
/* draw current frame number - black text */
UI_ThemeColor(TH_TEXT);
BLF_position(fontid, x-5, y+2, 0.f);
BLF_draw(fontid, str, strlen(str));
/* restore view transform */
glScalef(xscale, 1.0, 1.0);
}
static void draw_clip_tracks_curves(SpaceClip *sc)
{
MovieClip *clip= ED_space_clip(sc);
MovieTracking *tracking= &clip->tracking;
MovieTrackingTrack *track;
int size[2];
static float colors[2][3] = {{1.f, 0.f, 0.f},
{0.f, 1.f, 0.f}};
BKE_movieclip_acquire_size(clip, &sc->user, &size[0], &size[1]);
if(!size[0] || !size[1])
return;
track= tracking->tracks.first;
while(track) {
if(TRACK_VIEW_SELECTED(sc, track)) {
int coord;
for(coord= 0; coord<2; coord++) {
int i, lines= 0, prevfra= 0;
float prevval= 0.f;
glColor3fv(colors[coord]);
for(i= 0; i<track->markersnr; i++) {
MovieTrackingMarker *marker= &track->markers[i];
if(marker->flag&MARKER_DISABLED)
continue;
if(lines && marker->framenr!=prevfra+1) {
glEnd();
lines= 0;
}
if(!lines) {
glBegin(GL_LINE_STRIP);
lines= 1;
prevval= marker->pos[coord];
}
glVertex2f(marker->framenr, (marker->pos[coord] - prevval) * size[coord]);
prevval= marker->pos[coord];
prevfra= marker->framenr;
}
if(lines)
glEnd();
}
}
track= track->next;
}
}
static void draw_clip_frame_curves(SpaceClip *sc)
{
MovieClip *clip= ED_space_clip(sc);
MovieTracking *tracking= &clip->tracking;
MovieTrackingReconstruction *reconstruction= &tracking->reconstruction;
int i, lines= 0, prevfra= 0;
glColor3f(0.f, 0.f, 1.f);
for(i= 0; i<reconstruction->camnr; i++) {
MovieReconstructedCamera *camera= &reconstruction->cameras[i];
if(lines && camera->framenr!=prevfra+1) {
glEnd();
lines= 0;
}
if(!lines) {
glBegin(GL_LINE_STRIP);
lines= 1;
}
glVertex2f(camera->framenr, camera->error);
prevfra= camera->framenr;
}
if(lines)
glEnd();
}
void draw_clip_graph(SpaceClip *sc, ARegion *ar, Scene *scene)
{
View2D *v2d= &ar->v2d;
View2DGrid *grid;
short unitx= V2D_UNIT_FRAMESCALE, unity= V2D_UNIT_VALUES;
/* grid */
grid= UI_view2d_grid_calc(scene, v2d, unitx, V2D_GRID_NOCLAMP, unity, V2D_GRID_NOCLAMP, ar->winx, ar->winy);
UI_view2d_grid_draw(v2d, grid, V2D_GRIDLINES_ALL);
UI_view2d_grid_free(grid);
if(sc->flag&SC_SHOW_GRAPH_TRACKS)
draw_clip_tracks_curves(sc);
if(sc->flag&SC_SHOW_GRAPH_FRAMES)
draw_clip_frame_curves(sc);
/* current frame */
draw_graph_cfra(sc, ar, scene);
}
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