C++ (Cpp) sclip_zoom_set_factor示例

示例#1

文件： clip_ops.c 项目： pawkoz/dyplom

static int clip_view_ndof_invoke(bContext *C, wmOperator *UNUSED(op), const wmEvent *event)
{
	if (event->type != NDOF_MOTION)
		return OPERATOR_CANCELLED;
	else {
		SpaceClip *sc = CTX_wm_space_clip(C);
		ARegion *ar = CTX_wm_region(C);
		float pan_vec[3];

		const wmNDOFMotionData *ndof = event->customdata;
		const float speed = NDOF_PIXELS_PER_SECOND;

		WM_event_ndof_pan_get(ndof, pan_vec, true);

		mul_v2_fl(pan_vec, (speed * ndof->dt) / sc->zoom);
		pan_vec[2] *= -ndof->dt;

		sclip_zoom_set_factor(C, 1.0f + pan_vec[2], NULL);
		sc->xof += pan_vec[0];
		sc->yof += pan_vec[1];

		ED_region_tag_redraw(ar);

		return OPERATOR_FINISHED;
	}
}

示例#2

static int view_zoom_exec(bContext *C, wmOperator *op)
{
	sclip_zoom_set_factor(C, RNA_float_get(op->ptr, "factor"), NULL);

	ED_region_tag_redraw(CTX_wm_region(C));

	return OPERATOR_FINISHED;
}

示例#3

static int view_zoom_out_exec(bContext *C, wmOperator *op)
{
	float location[2];

	RNA_float_get_array(op->ptr, "location", location);

	sclip_zoom_set_factor(C, 0.8f, location);

	ED_region_tag_redraw(CTX_wm_region(C));

	return OPERATOR_FINISHED;
}

示例#4

static void sclip_zoom_set_factor_exec(bContext *C, const wmEvent *event, float factor)
{
	ARegion *ar = CTX_wm_region(C);

	float location[2], *mpos = NULL;

	if (event) {
		SpaceClip *sc = CTX_wm_space_clip(C);

		ED_clip_mouse_pos(sc, ar, event->mval, location);
		mpos = location;
	}

	sclip_zoom_set_factor(C, factor, mpos);

	ED_region_tag_redraw(ar);
}

示例#5

static int clip_view_ndof_invoke(bContext *C, wmOperator *UNUSED(op), const wmEvent *event)
{
	if (event->type != NDOF_MOTION)
		return OPERATOR_CANCELLED;
	else {
		SpaceClip *sc = CTX_wm_space_clip(C);
		ARegion *ar = CTX_wm_region(C);

		wmNDOFMotionData *ndof = (wmNDOFMotionData *) event->customdata;

		float dt = ndof->dt;

		/* tune these until it feels right */
		const float zoom_sensitivity = 0.5f;  /* 50% per second (I think) */
		const float pan_sensitivity = 300.0f; /* screen pixels per second */

		float pan_x = pan_sensitivity * dt * ndof->tvec[0] / sc->zoom;
		float pan_y = pan_sensitivity * dt * ndof->tvec[1] / sc->zoom;

		/* "mouse zoom" factor = 1 + (dx + dy) / 300
		 * what about "ndof zoom" factor? should behave like this:
		 * at rest -> factor = 1
		 * move forward -> factor > 1
		 * move backward -> factor < 1
		 */
		float zoom_factor = 1.0f + zoom_sensitivity * dt * - ndof->tvec[2];

		if (U.ndof_flag & NDOF_ZOOM_INVERT)
			zoom_factor = -zoom_factor;

		sclip_zoom_set_factor(C, zoom_factor, NULL);
		sc->xof += pan_x;
		sc->yof += pan_y;

		ED_region_tag_redraw(ar);

		return OPERATOR_FINISHED;
	}
}