/// <summary> /// Remove object by index. /// Used for Undo. /// </summary> public void RemoveAt(int index) { DrawObject o = graphicsList[index]; o.Clear(); if (ehObjectChanged != null) { ehObjectChanged(o, OBJ_OPERATE.remove); } graphicsList.RemoveAt(index); }
/// <summary> /// Insert object to specified place. /// Used for Undo. /// </summary> public void Insert(int index, DrawObject o) { if (index >= 0 && o != null) { o.Show(); graphicsList.Insert(index, o); if (ehObjectChanged != null) { ehObjectChanged(o, OBJ_OPERATE.insert); } } }
// Replace objects in graphicsList with objects from list private void ReplaceObjects(MapObjects graphicsList, List <DrawObject> list) { for (int i = 0; i < graphicsList.Count; i++) { DrawObject replacement = null; foreach (DrawObject o in list) { if (o.GetProperty().ID == graphicsList[i].GetProperty().ID) { replacement = o; break; } } if (replacement != null) { graphicsList.Replace(i, replacement); } } }
// 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> /// Add new object to draw DrawArea.Control. /// Function is called when user left-clicks draw area, /// and one of ToolObject-derived tools is active. /// </summary> /// <param name="control"></param> /// <param name="o"></param> protected void AddNewObject(MapControl control, DrawObject o) { control.Objects.UnselectAll(); control.Add(o); control.SetDirty(); }
public void Add(DrawObject obj) { // insert to the top of z-order Insert(0, obj); }
/// <summary> /// Left mouse button is pressed /// </summary> /// <param name="control"></param> /// <param name="e"></param> public override void OnMouseDown(MapControl control, MouseEventArgs e, int zoom) { 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 control.Objects.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 control.Objects.UnselectAll(); o.Selected = true; commandChangeState = new CommandChangeState(control.Objects); break; } } // Test for move (cursor is on the object) if (selectMode == SelectionMode.None) { int n1 = control.Objects.Count; DrawObject o = null; for (int i = 0; i < n1; i++) { if (control.Objects[i].HitTest(point) == 0) { o = control.Objects[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) { control.Objects.UnselectAll(); } // Select clicked object o.Selected = true; commandChangeState = new CommandChangeState(control.Objects); control.Cursor = Cursors.Hand; } } // Net selection if (selectMode == SelectionMode.None) { // click on background if ((Control.ModifierKeys & Keys.Control) == 0) { control.Objects.UnselectAll(); } selectMode = SelectionMode.NetSelection; control.Selected = true; } lastPoint.X = e.X; lastPoint.Y = e.Y; startPoint.X = e.X; startPoint.Y = e.Y; control.Refresh(); if (selectMode == SelectionMode.NetSelection) { // Draw selection rectangle in initial position ControlPaint.DrawReversibleFrame( control.RectangleToScreen(DrawRectangle.GetNormalizedRectangle(startPoint, lastPoint)), Color.Black, FrameStyle.Dashed); } }