/* Draw Timeline/Strip Editor Mode for Sequencer */
void draw_timeline_seq(const bContext *C, ARegion *ar)
{
Scene *scene = CTX_data_scene(C);
Editing *ed = BKE_sequencer_editing_get(scene, FALSE);
SpaceSeq *sseq = CTX_wm_space_seq(C);
View2D *v2d = &ar->v2d;
View2DScrollers *scrollers;
short unit = 0, flag = 0;
float col[3];
/* clear and setup matrix */
UI_GetThemeColor3fv(TH_BACK, col);
if (ed && ed->metastack.first)
glClearColor(col[0], col[1], col[2] - 0.1f, 0.0f);
else
glClearColor(col[0], col[1], col[2], 0.0f);
glClear(GL_COLOR_BUFFER_BIT);
UI_view2d_view_ortho(v2d);
/* calculate extents of sequencer strips/data
* NOTE: needed for the scrollers later
*/
boundbox_seq(scene, &v2d->tot);
/* draw backdrop */
draw_seq_backdrop(v2d);
/* regular grid-pattern over the rest of the view (i.e. 25-frame grid lines) */
// NOTE: the gridlines are currently spaced every 25 frames, which is only fine for 25 fps, but maybe not for 30...
UI_view2d_constant_grid_draw(v2d);
ED_region_draw_cb_draw(C, ar, REGION_DRAW_PRE_VIEW);
seq_draw_sfra_efra(scene, v2d);
/* sequence strips (if there is data available to be drawn) */
if (ed) {
/* draw the data */
draw_seq_strips(C, ed, ar);
/* text draw cached (for sequence names), in pixelspace now */
UI_view2d_text_cache_draw(ar);
}
/* current frame */
UI_view2d_view_ortho(v2d);
if ((sseq->flag & SEQ_DRAWFRAMES) == 0) flag |= DRAWCFRA_UNIT_SECONDS;
if ((sseq->flag & SEQ_NO_DRAW_CFRANUM) == 0) flag |= DRAWCFRA_SHOW_NUMBOX;
ANIM_draw_cfra(C, v2d, flag);
/* markers */
UI_view2d_view_orthoSpecial(ar, v2d, 1);
draw_markers_time(C, DRAW_MARKERS_LINES);
/* preview range */
UI_view2d_view_ortho(v2d);
ANIM_draw_previewrange(C, v2d, 1);
/* overlap playhead */
if (scene->ed && scene->ed->over_flag & SEQ_EDIT_OVERLAY_SHOW) {
int cfra_over = (scene->ed->over_flag & SEQ_EDIT_OVERLAY_ABS) ? scene->ed->over_cfra : scene->r.cfra + scene->ed->over_ofs;
glColor3f(0.2, 0.2, 0.2);
// glRectf(cfra_over, v2d->cur.ymin, scene->ed->over_ofs + scene->r.cfra + 1, v2d->cur.ymax);
glBegin(GL_LINES);
glVertex2f(cfra_over, v2d->cur.ymin);
glVertex2f(cfra_over, v2d->cur.ymax);
glEnd();
}
/* callback */
ED_region_draw_cb_draw(C, ar, REGION_DRAW_POST_VIEW);
/* reset view matrix */
UI_view2d_view_restore(C);
/* scrollers */
unit = (sseq->flag & SEQ_DRAWFRAMES) ? V2D_UNIT_FRAMES : V2D_UNIT_SECONDSSEQ;
scrollers = UI_view2d_scrollers_calc(C, v2d, unit, V2D_GRID_CLAMP, V2D_UNIT_VALUES, V2D_GRID_CLAMP);
UI_view2d_scrollers_draw(C, v2d, scrollers);
UI_view2d_scrollers_free(scrollers);
}
/* sets up the opengl context.
* width, height are to match the values from ED_mask_get_size() */
void ED_mask_draw_region(Mask *mask, ARegion *ar,
const char draw_flag, const char draw_type, const char overlay_mode,
const int width_i, const int height_i, /* convert directly into aspect corrected vars */
const float aspx, const float aspy,
const bool do_scale_applied, const bool do_draw_cb,
float stabmat[4][4], /* optional - only used by clip */
const bContext *C /* optional - only used when do_post_draw is set or called from clip editor */
)
{
struct View2D *v2d = &ar->v2d;
/* aspect always scales vertically in movie and image spaces */
const float width = width_i, height = (float)height_i * (aspy / aspx);
int x, y;
/* int w, h; */
float zoomx, zoomy;
/* frame image */
float maxdim;
float xofs, yofs;
/* find window pixel coordinates of origin */
UI_view2d_view_to_region(&ar->v2d, 0.0f, 0.0f, &x, &y);
/* w = BLI_rctf_size_x(&v2d->tot); */
/* h = BLI_rctf_size_y(&v2d->tot); */
zoomx = (float)(BLI_rcti_size_x(&ar->winrct) + 1) / BLI_rctf_size_x(&ar->v2d.cur);
zoomy = (float)(BLI_rcti_size_y(&ar->winrct) + 1) / BLI_rctf_size_y(&ar->v2d.cur);
if (do_scale_applied) {
zoomx /= width;
zoomy /= height;
}
x += v2d->tot.xmin * zoomx;
y += v2d->tot.ymin * zoomy;
/* frame the image */
maxdim = max_ff(width, height);
if (width == height) {
xofs = yofs = 0;
}
else if (width < height) {
xofs = ((height - width) / -2.0f) * zoomx;
yofs = 0.0f;
}
else { /* (width > height) */
xofs = 0.0f;
yofs = ((width - height) / -2.0f) * zoomy;
}
if (draw_flag & MASK_DRAWFLAG_OVERLAY) {
float *buffer = threaded_mask_rasterize(mask, width, height);
int format;
if (overlay_mode == MASK_OVERLAY_ALPHACHANNEL) {
glColor3f(1.0f, 1.0f, 1.0f);
format = GL_LUMINANCE;
}
else {
/* More blending types could be supported in the future. */
glEnable(GL_BLEND);
glBlendFunc(GL_DST_COLOR, GL_SRC_ALPHA);
format = GL_ALPHA;
}
glPushMatrix();
glTranslatef(x, y, 0);
glScalef(zoomx, zoomy, 0);
if (stabmat) {
glMultMatrixf(stabmat);
}
glaDrawPixelsTex(0.0f, 0.0f, width, height, format, GL_FLOAT, GL_NEAREST, buffer);
glPopMatrix();
if (overlay_mode != MASK_OVERLAY_ALPHACHANNEL) {
glDisable(GL_BLEND);
}
MEM_freeN(buffer);
}
/* apply transformation so mask editing tools will assume drawing from the origin in normalized space */
glPushMatrix();
if (stabmat) {
glMultMatrixf(stabmat);
}
glTranslatef(x + xofs, y + yofs, 0);
glScalef(maxdim * zoomx, maxdim * zoomy, 0);
if (do_draw_cb) {
ED_region_draw_cb_draw(C, ar, REGION_DRAW_PRE_VIEW);
}
/* draw! */
draw_masklays(C, mask, draw_flag, draw_type, width, height, maxdim * zoomx, maxdim * zoomy);
if (do_draw_cb) {
ED_region_draw_cb_draw(C, ar, REGION_DRAW_POST_VIEW);
}
glPopMatrix();
}