C++ (Cpp) clip_view_center_to_point Examples

Example #1

bool ED_clip_view_selection(const bContext *C, ARegion *ar, bool fit)
{
	SpaceClip *sc = CTX_wm_space_clip(C);
	int w, h, frame_width, frame_height;
	float min[2], max[2];

	ED_space_clip_get_size(sc, &frame_width, &frame_height);

	if ((frame_width == 0) || (frame_height == 0) || (sc->clip == NULL))
		return false;

	if (!selected_boundbox(sc, min, max))
		return false;

	/* center view */
	clip_view_center_to_point(sc, (max[0] + min[0]) / (2 * frame_width),
	                              (max[1] + min[1]) / (2 * frame_height));

	w = max[0] - min[0];
	h = max[1] - min[1];

	/* set zoom to see all selection */
	if (w > 0 && h > 0) {
		int width, height;
		float zoomx, zoomy, newzoom, aspx, aspy;

		ED_space_clip_get_aspect(sc, &aspx, &aspy);

		width  = BLI_rcti_size_x(&ar->winrct) + 1;
		height = BLI_rcti_size_y(&ar->winrct) + 1;

		zoomx = (float)width / w / aspx;
		zoomy = (float)height / h / aspy;

		newzoom = 1.0f / power_of_2(1.0f / min_ff(zoomx, zoomy));

		if (fit || sc->zoom > newzoom)
			sc->zoom = newzoom;
	}

	return true;
}

Example #2

static int mouse_select_curve(bContext *C, float co[2], int extend)
{
	SpaceClip *sc= CTX_wm_space_clip(C);
	MovieClip *clip= ED_space_clip(sc);
	MovieTracking *tracking= &clip->tracking;
	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
	MouseSelectUserData userdata;

	mouse_select_init_data(&userdata, co);
	clip_graph_tracking_values_iterate(sc, &userdata, find_nearest_tracking_segment_cb, NULL, find_nearest_tracking_segment_end_cb);

	if(userdata.track) {
		if(extend) {
			if(act_track==userdata.track) {
				/* currently only single curve can be selected (selected curve represents active track) */
				act_track= NULL;
			}
		}
		else if(act_track!=userdata.track) {
			MovieTrackingMarker *marker;
			SelectUserData selectdata = {SEL_DESELECT};

			tracking->act_track= userdata.track;

			/* make active track be centered to screen */
			marker= BKE_tracking_get_marker(userdata.track, sc->user.framenr);

			clip_view_center_to_point(sc, marker->pos[0], marker->pos[1]);

			/* deselect all knots on newly selected curve */
			clip_graph_tracking_iterate(sc, &selectdata, toggle_selection_cb);
		}

		return 1;
	}

	return 0;
}