implement cache line for image editor

It works exactly the same as a cache line in movie clip editor.

3 files changed, 4 insertions, 37 deletions

diff --git a/source/blender/editors/space_clip/clip_draw.c b/source/blender/editors/space_clip/clip_draw.c
index a17cf0e406d..eaf12a8d51c 100644
--- a/source/blender/editors/space_clip/clip_draw.c
+++ b/source/blender/editors/space_clip/clip_draw.c
@@ -76,26 +76,6 @@
 
 /*********************** main area drawing *************************/
 
-void clip_draw_curfra_label(const int framenr, const float x, const float y)
-{
-	uiStyle *style = UI_GetStyle();
-	int fontid = style->widget.uifont_id;
-	char numstr[32];
-	float font_dims[2] = {0.0f, 0.0f};
-
-	/* frame number */
-	BLF_size(fontid, 11.0f * U.pixelsize, U.dpi);
-	BLI_snprintf(numstr, sizeof(numstr), "%d", framenr);
-
-	BLF_width_and_height(fontid, numstr, sizeof(numstr), &font_dims[0], &font_dims[1]);
-
-	glRecti(x, y, x + font_dims[0] + 6.0f, y + font_dims[1] + 4.0f);
-
-	UI_ThemeColor(TH_TEXT);
-	BLF_position(fontid, x + 2.0f, y + 2.0f, 0.0f);
-	BLF_draw(fontid, numstr, sizeof(numstr));
-}
-
 static void draw_keyframe(int frame, int cfra, int sfra, float framelen, int width)
 {
 	int height = (frame == cfra) ? 22 : 10;
@@ -183,23 +163,11 @@ static void draw_movieclip_cache(SpaceClip *sc, ARegion *ar, MovieClip *clip, Sc
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
 	/* cache background */
-	glColor4ub(128, 128, 255, 64);
-	glRecti(0, 0, ar->winx, 8 * UI_DPI_FAC);
+	ED_region_cache_draw_background(ar);
 
 	/* cached segments -- could be usefu lto debug caching strategies */
 	BKE_movieclip_get_cache_segments(clip, &sc->user, &totseg, &points);
-	if (totseg) {
-		glColor4ub(128, 128, 255, 128);
-
-		for (a = 0; a < totseg; a++) {
-			float x1, x2;
-
-			x1 = (points[a * 2] - sfra) / (efra - sfra + 1) * ar->winx;
-			x2 = (points[a * 2 + 1] - sfra + 1) / (efra - sfra + 1) * ar->winx;
-
-			glRecti(x1, 0, x2, 8 * UI_DPI_FAC);
-		}
-	}
+	ED_region_cache_draw_cached_segments(ar, totseg, points, sfra, efra);
 
 	/* track */
 	if (act_track || act_plane_track) {
@@ -271,7 +239,7 @@ static void draw_movieclip_cache(SpaceClip *sc, ARegion *ar, MovieClip *clip, Sc
 	UI_ThemeColor(TH_CFRAME);
 	glRecti(x, 0, x + ceilf(framelen), 8 * UI_DPI_FAC);
 
-	clip_draw_curfra_label(sc->user.framenr, x, 8.0f * UI_DPI_FAC);
+	ED_region_cache_draw_curfra_label(sc->user.framenr, x, 8.0f * UI_DPI_FAC);
 
 	/* solver keyframes */
 	glColor4ub(175, 255, 0, 255);
diff --git a/source/blender/editors/space_clip/clip_intern.h b/source/blender/editors/space_clip/clip_intern.h
index 811f8e2eaab..2a5d959bb84 100644
--- a/source/blender/editors/space_clip/clip_intern.h
+++ b/source/blender/editors/space_clip/clip_intern.h
@@ -72,7 +72,6 @@ void CLIP_OT_dopesheet_view_all(struct wmOperatorType *ot);
 /* clip_draw.c */
 void clip_draw_main(const struct bContext *C, struct SpaceClip *sc, struct ARegion *ar);
 void clip_draw_grease_pencil(struct bContext *C, int onlyv2d);
-void clip_draw_curfra_label(const int framenr, const float x, const float y);
 void clip_draw_cache_and_notes(const bContext *C, SpaceClip *sc, ARegion *ar);
 
 /* clip_editor.c */
diff --git a/source/blender/editors/space_clip/clip_utils.c b/source/blender/editors/space_clip/clip_utils.c
index fd994d5e1b3..e4392cb579d 100644
--- a/source/blender/editors/space_clip/clip_utils.c
+++ b/source/blender/editors/space_clip/clip_utils.c
@@ -319,7 +319,7 @@ void clip_draw_cfra(SpaceClip *sc, ARegion *ar, Scene *scene)
 	UI_view2d_getscale(v2d, &xscale, &yscale);
 	glScalef(1.0f / xscale, 1.0f, 1.0f);
 
-	clip_draw_curfra_label(sc->user.framenr, (float)sc->user.framenr * xscale, 18);
+	ED_region_cache_draw_curfra_label(sc->user.framenr, (float)sc->user.framenr * xscale, 18);
 
 	/* restore view transform */
 	glScalef(xscale, 1.0, 1.0);