Differential D8521 Diff 43774 source/blender/editors/space_image/image_ops.c

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source/blender/editors/space_image/image_ops.c

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	if (ELEM(event->type, MOUSEZOOM, MOUSEPAN)) {			if (ELEM(event->type, MOUSEZOOM, MOUSEPAN)) {
	SpaceImage *sima = CTX_wm_space_image(C);			SpaceImage *sima = CTX_wm_space_image(C);
	ARegion *region = CTX_wm_region(C);			ARegion *region = CTX_wm_region(C);
	float delta, factor, location[2];			float delta, factor, location[2];

	UI_view2d_region_to_view(			UI_view2d_region_to_view(
	&region->v2d, event->mval[0], event->mval[1], &location[0], &location[1]);			&region->v2d, event->mval[0], event->mval[1], &location[0], &location[1]);

	delta = event->prev_xy[0] - event->xy[0] + event->prev_xy[1] - event->xy[1];			if (event->type == MOUSEPAN) {
				if (U.uiflag & USER_ZOOM_HORIZ) {
				delta = WM_event_absolute_delta_x(event);
				}
				else {
				delta = WM_event_absolute_delta_y(event);
				}

	if (U.uiflag & USER_ZOOM_INVERT) {			if (U.uiflag & USER_ZOOM_INVERT) {
	delta *= -1;			delta *= -1.0f;
				}

				factor = 1.0f + delta / 300.0f;
				}
				else { /* MOUSEZOOM */
				factor = 1.0f + event->factor;
	}			}

	factor = 1.0f + delta / 300.0f;
	RNA_float_set(op->ptr, "factor", factor);			RNA_float_set(op->ptr, "factor", factor);
	const bool use_cursor_init = RNA_boolean_get(op->ptr, "use_cursor_init");			const bool use_cursor_init = RNA_boolean_get(op->ptr, "use_cursor_init");
	sima_zoom_set(sima,			sima_zoom_set(sima,
	region,			region,
	sima->zoom * factor,			sima->zoom * factor,
	location,			location,
	(use_cursor_init && (U.uiflag & USER_ZOOM_TO_MOUSEPOS)));			(use_cursor_init && (U.uiflag & USER_ZOOM_TO_MOUSEPOS)));
	ED_region_tag_redraw(region);			ED_region_tag_redraw(region);
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