/// <summary> /// Left mouse button is pressed /// </summary> /// <param name="drawArea"></param> /// <param name="e"></param> public override void OnMouseDown(IToolDrawArea drawArea, MouseEventArgs e) { changeState = null; wasMove = false; SelectMode = PointerSelectionMode.None; var point = new Point(e.X, e.Y); // Test for resizing (only if control is selected, cursor is on the handle) foreach (IDrawObject o in drawArea.GraphicsCollection.Selection) { int handleNumber = o.HitTest(point); if (handleNumber > (int)HandleNumber.None) { SelectMode = PointerSelectionMode.Size; // keep resized object in class member resizedObject = o; resizedObjectHandle = handleNumber; // Since we want to resize only one object, unselect all other objects drawArea.GraphicsCollection.UnselectAll(); o.Selected = true; selectedDrawObject = o; changeState = new TrackChangeState(drawArea.GraphicsCollection); break; } } // Test for move (cursor is on the object) if (SelectMode == PointerSelectionMode.None) { int n1 = drawArea.GraphicsCollection.Count; IDrawObject o = null; for (int i = 0; i < n1; i++) { if (drawArea.GraphicsCollection[i].HitTest(point) == 0) { o = drawArea.GraphicsCollection[i]; break; } } if (o != null) { SelectMode = PointerSelectionMode.Move; // Unselect all if Ctrl is not pressed and clicked object is not selected yet if ((Control.ModifierKeys & Keys.Control) == 0 && !o.Selected) drawArea.GraphicsCollection.UnselectAll(); // Select clicked object o.Selected = true; selectedDrawObject = o; changeState = new TrackChangeState(drawArea.GraphicsCollection); drawArea.Control.Cursor = Cursors.SizeAll; } } // Net selection if (SelectMode == PointerSelectionMode.None) { // click on background if ((Control.ModifierKeys & Keys.Control) == 0) drawArea.GraphicsCollection.UnselectAll(); SelectMode = PointerSelectionMode.NetSelection; } lastPoint.X = e.X; lastPoint.Y = e.Y; startPoint.X = e.X; startPoint.Y = e.Y; drawArea.Control.Capture = true; drawArea.Control.Refresh(); if (SelectMode == PointerSelectionMode.NetSelection) { // Draw selection rectangle in initial position ControlPaint.DrawReversibleFrame( drawArea.Control.RectangleToScreen(GraphicUtility.GetNormalizedRectangle(startPoint, new Size(lastPoint))), Color.Black, FrameStyle.Dashed); } if (selectedDrawObject != null) { drawArea.SelectNewDrawObject(selectedDrawObject); selectedDrawObject = null; } }
/// <summary> /// Right mouse button is released /// </summary> /// <param name="drawArea"></param> /// <param name="e"></param> public override void OnMouseUp(IToolDrawArea drawArea, MouseEventArgs e) { if (SelectMode == PointerSelectionMode.NetSelection) { // Remove old selection rectangle ControlPaint.DrawReversibleFrame( drawArea.Control.RectangleToScreen(GraphicUtility.GetNormalizedRectangle(startPoint, new Size(lastPoint))), Color.Black, FrameStyle.Dashed); // Make group selection drawArea.GraphicsCollection.SelectInRectangle( GraphicUtility.GetNormalizedRectangle(startPoint, new Size(lastPoint))); SelectMode = PointerSelectionMode.None; } if (resizedObject != null) { // after resizing resizedObject.Normalize(); resizedObject = null; } drawArea.Control.Capture = false; drawArea.Control.Refresh(); if (changeState != null && wasMove) { // Keep state after moving/resizing and add command to history changeState.NewState(drawArea.GraphicsCollection); ConfigToolContext.Instance.ToolTracker.AddTrackToHistory(changeState); changeState = null; } }