private void deleteToolStripMenuItem_Click(object sender, EventArgs e) { CommandDelete command = new CommandDelete(drawArea.Graphics); if (drawArea.Graphics.DeleteSelection()) { drawArea.SetDirty(); drawArea.Refresh(); drawArea.AddCommandToHistory(command); } }
/// <summary> /// Left mouse is released. /// New object is created and resized. /// </summary> /// <param name="drawArea"></param> /// <param name="e"></param> public override void OnMouseUp(DrawArea drawArea, MouseEventArgs e) { if (drawArea.Graphics.Count > 0) { if (drawArea.Graphics.First.Shape.Length >= 2)//有一定长度才画图 { DrawObject draw = drawArea.Graphics.First; draw.ShowParamSetting(e.Location); draw.BulidWay(draw.WaySetter); if (draw.WaySetter.CBCreateReverseWay.Checked == true) { DrawObject ctrWay = draw.BuildCtrWay(); drawArea.Graphics.AddFirst(ctrWay); drawArea.SetDirty(); drawArea.AddCommandToHistory(new CommandAdd(ctrWay)); } drawArea.AddCommandToHistory(new CommandAdd(drawArea.Graphics.First)); drawArea.ActiveTool = DrawArea.DrawToolType.Pointer; drawArea.Capture = false; drawArea.Refresh(); } } //drawArea.GraphicsList[0].Normalize(); //drawArea.AddCommandToHistory(new CommandAdd(drawArea.GraphicsList[0])); //drawArea.ActiveTool = DrawArea.DrawToolType.Pointer; //drawArea.Capture = false; //drawArea.Refresh(); }
/// <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.Graphics.UnselectAll(); o.Selected = true; drawArea.Graphics.Add(o); drawArea.Capture = true; drawArea.Refresh(); drawArea.SetDirty(); }
/// <summary> /// Mouse is moved. /// None button is pressed, or left button is pressed. /// </summary> /// <param name="drawArea"></param> /// <param name="e"></param> public override void OnMouseMove(DrawArea drawArea, MouseEventArgs e) { Point point = new Point(e.X, e.Y); Point oldPoint = lastPoint; wasMove = true; // set cursor when mouse button is not pressed if (e.Button == MouseButtons.None) { Cursor cursor = null; for (int i = 0; i < drawArea.Graphics.Count; i++) { int n = drawArea.Graphics[i].HitTest(point); if (n > 0) { cursor = drawArea.Graphics[i].GetHandleCursor(n); break; } } if (cursor == null) { cursor = Cursors.Default; } drawArea.Cursor = cursor; return; } if (e.Button != MouseButtons.Left) { return; } /// Left button is pressed // Find difference between previous and current position int dx = e.X - lastPoint.X; int dy = e.Y - lastPoint.Y; lastPoint.X = e.X; lastPoint.Y = e.Y; // resize if (selectMode == SelectionMode.Size) { if (resizedObject != null) { resizedObject.MoveHandleTo(point, resizedObjectHandle); drawArea.SetDirty(); drawArea.Refresh(); } } // move if (selectMode == SelectionMode.Move) { foreach (DrawObject o in drawArea.Graphics.Selection) { o.Move(dx, dy); } drawArea.Cursor = Cursors.SizeAll; drawArea.SetDirty(); drawArea.Refresh(); } if (selectMode == SelectionMode.NetSelection) { // Remove old selection rectangle ControlPaint.DrawReversibleFrame( drawArea.RectangleToScreen(DrawRectangle.GetNormalizedRectangle(startPoint, oldPoint)), Color.Black, FrameStyle.Dashed); // Draw new selection rectangle ControlPaint.DrawReversibleFrame( drawArea.RectangleToScreen(DrawRectangle.GetNormalizedRectangle(startPoint, point)), Color.Black, FrameStyle.Dashed); return; } }