protected override void FillDrawObjectFields(DrawObject drawObject) { base.FillDrawObjectFields(drawObject); var drawRectangle = drawObject as DrawRectangle; drawRectangle.Rectangle = this.Rectangle; drawRectangle.BackColor = this.BackColor; }
/// <summary> /// Add new object to draw area. /// Function is called when user left-clicks draw area, /// and one of ToolObject-derived tools is active. /// </summary> /// <param name="drawArea"></param> /// <param name="o"></param> protected void AddNewObject(DrawArea drawArea, DrawObject o) { drawArea.UnselectAll(); o.Selected = true; drawArea.Add(o); drawArea.Capture = true; drawArea.Refresh(); drawArea.SetDirty(); }
/// <summary> /// Copy fields from this instance to cloned instance drawObject. /// Called from Clone functions of derived classes. /// </summary> protected virtual void FillDrawObjectFields(DrawObject drawObject) { drawObject.Selected = this.Selected; drawObject.PenColor = this.PenColor; drawObject.PenWidth = this.PenWidth; drawObject.ID = this.ID; drawObject.Text = this.Text; drawObject.Caption = this.Caption; }
// Create this command with DrawObject instance added to the list public CommandAdd(DrawObject drawObject) : base() { // Keep copy of added object this.drawObject = drawObject.Clone(); }
/// <summary> /// Left mouse button is pressed /// </summary> /// <param name="drawArea"></param> /// <param name="e"></param> public override void OnMouseDown(DrawArea drawArea, MouseEventArgs e) { commandChangeState = null; wasMove = false; selectMode = SelectionMode.None; Point point = new Point(e.X, e.Y); // Test for resizing (only if control is selected, cursor is on the handle) foreach (DrawObject o in drawArea.Selection) { int handleNumber = o.HitTest(point); if (handleNumber > 0) { selectMode = SelectionMode.Size; // keep resized object in class member resizedObject = o; resizedObjectHandle = handleNumber; // Since we want to resize only one object, unselect all other objects drawArea.UnselectAll(); o.Selected = true; commandChangeState = new CommandChangeState(drawArea); break; } } // Test for move (cursor is on the object) if (selectMode == SelectionMode.None) { int n1 = drawArea.Count; DrawObject o = null; for (int i = 0; i < n1; i++) { if (drawArea[i].HitTest(point) == 0) { o = drawArea[i]; break; } } if (o != null) { selectMode = SelectionMode.Move; // Unselect all if Ctrl is not pressed and clicked object is not selected yet if ((Control.ModifierKeys & Keys.Control) == 0 && !o.Selected) drawArea.UnselectAll(); // Select clicked object o.Selected = true; commandChangeState = new CommandChangeState(drawArea); drawArea.Cursor = Cursors.SizeAll; } } // Net selection if (selectMode == SelectionMode.None) { // click on background if ((Control.ModifierKeys & Keys.Control) == 0) drawArea.UnselectAll(); selectMode = SelectionMode.NetSelection; } lastPoint.X = e.X; lastPoint.Y = e.Y; startPoint.X = e.X; startPoint.Y = e.Y; drawArea.Capture = true; drawArea.Refresh(); if (selectMode == SelectionMode.NetSelection) { // Draw selection rectangle in initial position ControlPaint.DrawReversibleFrame( drawArea.RectangleToScreen(DrawRectangle.GetNormalizedRectangle(startPoint, lastPoint)), Color.Black, FrameStyle.Dashed); } }
/// <summary> /// Right mouse button is released /// </summary> /// <param name="drawArea"></param> /// <param name="e"></param> public override void OnMouseUp(DrawArea drawArea, MouseEventArgs e) { if (selectMode == SelectionMode.NetSelection) { // Remove old selection rectangle ControlPaint.DrawReversibleFrame( drawArea.RectangleToScreen(DrawRectangle.GetNormalizedRectangle(startPoint, lastPoint)), Color.Black, FrameStyle.Dashed); // Make group selection drawArea.SelectInRectangle(DrawRectangle.GetNormalizedRectangle(startPoint, lastPoint)); selectMode = SelectionMode.None; } if (resizedObject != null) { // after resizing resizedObject.Normalize(); resizedObject = null; } drawArea.Capture = false; drawArea.Refresh(); if (commandChangeState != null && wasMove) { // Keep state after moving/resizing and add command to history commandChangeState.NewState(drawArea); drawArea.AddCommandToHistory(commandChangeState); commandChangeState = null; } }