예제 #1
0
        /// <summary>
        /// Begins a scaled local area.
        /// Returns vector to offset GUI controls with to account for zooming to the pivot.
        /// Using adjustGUILayout does that automatically for GUILayout rects. Theoretically can be nested!
        /// </summary>
        public static Vector2 BeginScale(ref Rect rect, Vector2 zoomPivot, float zoom, bool adjustGUILayout)
        {
            Rect screenRect;

            GUIScaleUtility.BeginNoClip();
            screenRect = GUIScaleUtility.GUIToScaledSpace(rect);

            rect = Scale(screenRect, screenRect.position + zoomPivot, new Vector2(zoom, zoom));

            // Now continue drawing using the new clipping group
            GUI.BeginGroup(rect);
            rect.position = Vector2.zero;             // Adjust because we entered the new group

            // Because I currently found no way to actually scale to a custom pivot rather than (0, 0),
            // we'll make use of a cheat and just offset it accordingly to let it appear as if it would scroll to the center
            // Note, due to that, controls not adjusted are still scaled to (0, 0)
            Vector2 zoomPosAdjust = rect.center - screenRect.size / 2 + zoomPivot;

            // Take a matrix backup to restore back later on
            GUIMatrices.Add(GUI.matrix);

            // Scale GUI.matrix. After that we have the correct clipping group again.
            GUIUtility.ScaleAroundPivot(new Vector2(1 / zoom, 1 / zoom), zoomPosAdjust);

            return(zoomPosAdjust);
        }
예제 #2
0
        /// <summary>
        /// Ends a scale region previously opened with BeginScale
        /// </summary>
        public static void EndScale()
        {
            // Set last matrix and clipping group
            if (GUIMatrices.Count == 0)
            {
                throw new UnityException("GUIScaleUtility: You are ending more scale regions than you are beginning!");
            }
            GUI.matrix = GUIMatrices[GUIMatrices.Count - 1];
            GUIMatrices.RemoveAt(GUIMatrices.Count - 1);

            // End the scaled group
            GUI.EndGroup();

            GUIScaleUtility.RestoreClips();
        }