/// <summary> /// Left mouse button is pressed /// </summary> /// <param name="DrawRegion"></param> /// <param name="e"></param> public override void OnMouseDown(DrawRegion drawRegion, MouseEventArgs e) { selectMode = SelectionMode.None; Point point = new Point(e.X, e.Y); // Test for move (cursor is on the object) if (selectMode == SelectionMode.None) { int n1 = drawRegion.GraphicsList.Count; DrawObject o = null; for (int i = 0; i < n1; i++) { if (drawRegion.GraphicsList[i].HitTest(point) == 0) { o = drawRegion.GraphicsList[i]; break; } } if (o != null) { selectMode = SelectionMode.Move; o.Selected = true; } } // Net selection if (selectMode == SelectionMode.None) { selectMode = SelectionMode.NetSelection; drawRegion.DrawNetRectangle = true; } lastPoint.X = e.X; lastPoint.Y = e.Y; startPoint.X = e.X; startPoint.Y = e.Y; drawRegion.Capture = true; drawRegion.NetRectangle = DrawRectangle.GetNormalizedRectangle(startPoint, lastPoint); drawRegion.Refresh(); }
/// <summary> /// Right mouse button is released /// </summary> /// <param name="DrawRegion"></param> /// <param name="e"></param> public override void OnMouseUp(DrawRegion drawRegion, MouseEventArgs e) { if (selectMode == SelectionMode.NetSelection) { // Group selection drawRegion.GraphicsList.SelectInRectangle(drawRegion.NetRectangle); selectMode = SelectionMode.None; drawRegion.DrawNetRectangle = false; } if (resizedObject != null) { // after resizing resizedObject.Normalize(); resizedObject = null; } drawRegion.Capture = false; drawRegion.Refresh(); }
/// <summary> /// Mouse is moved. /// None button is pressed, ot left button is pressed. /// </summary> /// <param name="DrawRegion"></param> /// <param name="e"></param> public override void OnMouseMove(DrawRegion drawRegion, MouseEventArgs e) { Point point = new Point(e.X, e.Y); drawRegion.DrawNetRectangle = true; lastPoint.X = e.X; lastPoint.Y = e.Y; drawRegion.IsNormal = lastPoint.X > startPoint.X; drawRegion.NetRectangle = DrawRectangle.GetNormalizedRectangle(startPoint, lastPoint); drawRegion.Refresh(); return; // set cursor when mouse button is not pressed if (e.Button == MouseButtons.None) { Cursor cursor = null; for (int i = 0; i < drawRegion.GraphicsList.Count; i++) { int n = drawRegion.GraphicsList[i].HitTest(point); if (n > 0) { cursor = drawRegion.GraphicsList[i].GetHandleCursor(n); } if (n == 0 || drawRegion.GraphicsList[i].Selected) { drawRegion.GraphicsList[i].SetHighlight(); } else { drawRegion.GraphicsList[i].CancelHighlight(); } } if (cursor == null) { cursor = Cursors.Default; } drawRegion.Cursor = cursor; drawRegion.Refresh(); 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; if (selectMode == SelectionMode.NetSelection) { drawRegion.NetRectangle = DrawRectangle.GetNormalizedRectangle(startPoint, lastPoint); drawRegion.Refresh(); return; } }
/// <summary> /// Left mouse button is released /// </summary> /// <param name="DrawRegion"></param> /// <param name="e"></param> public virtual void OnMouseUp(DrawRegion drawRegion, MouseEventArgs e) { }