void _ResetCursor()
{
ChartMouseMethod mouseMethod = MouseMethod;
if (Helper.TestModifierKeys(Keys.Shift))
{
if (mouseMethod == ChartMouseMethod.Select)
{
mouseMethod = ChartMouseMethod.Scroll;
}
}
Cursor cur;
if (!FormatPainter.Default.IsEmpty)
{
cur = StyleBrushCursor;
}
else if (mouseMethod == ChartMouseMethod.Scroll)
{
cur = ScrollCursor;
}
else
{
if (HoverObject.Widget != null && HoverObject.Widget.Cursor != null)
{
cur = HoverObject.Widget.Cursor;
}
else
{
cur = Cursors.Default;
}
}
if (cur != Cursor)
{
Cursor = cur;
}
}
protected override void OnChartMouseMove(MouseEventArgs e)
{
base.OnChartMouseMove(e);
// if the Shift is press, maybe is hover hyperlink, or reverse MouseMethod
ChartMouseMethod mouseMethod = MouseMethod;
if (Helper.TestModifierKeys(Keys.Shift))
{
if (mouseMethod == ChartMouseMethod.Select)
{
mouseMethod = ChartMouseMethod.Scroll;
}
}
if (MouseState == ChartMouseState.Drag)
{
CurrentDragMethod = Helper.TestModifierKeys(Keys.Control) ? DragTopicsMethod.Copy : DragTopicsMethod.Move;
//bool canDrop = TestDrop(PressObject.Topic, HitTest(e.X, e.Y).Topic);
//ShowDragBox(PressObject.Topic, e.X, e.Y, canDrop);
bool canDrag = TestDragDrop(DragBox.Topics, HitTest(e.X, e.Y).Topic, CurrentDragMethod);
ShowDragBox(DragBox.Topics, e.X, e.Y, canDrag, CurrentDragMethod);
}
else if (mouseMethod == ChartMouseMethod.Scroll)
{
if (MouseMethod == mouseMethod)
{
MouseState = ChartMouseState.Scroll;
}
if (e.Button == MouseButtons.Left)
{
Scroll(LastMousePos.X - e.X, LastMousePos.Y - e.Y);
LastMousePos.X = e.X;
LastMousePos.Y = e.Y;
}
}
else if (IsMouseDown)
{
if (PressObject.IsEmpty) // select
{
if (e.Button == MouseButtons.Left)
{
MouseState = ChartMouseState.Select;
}
}
else if (MouseState != ChartMouseState.Drag)
{
// test drag
if (Math.Abs(MouseDownPos.X - e.X) > SystemInformation.DragSize.Width ||
Math.Abs(MouseDownPos.Y - e.Y) > SystemInformation.DragSize.Height)
{
DragBox.Start(MouseDownPos, SelectedTopics);
MouseState = ChartMouseState.Drag;
}
}
}
if (!EditMode && MouseState == ChartMouseState.Normal)
{
HoverObject = HitTest(e.X, e.Y);
}
_ResetCursor();
}
protected override void OnChartMouseDown(MouseEventArgs e)
{
base.OnChartMouseDown(e);
if (!ChartBox.Focused)
{
ChartBox.Focus();
}
IsMouseDown = true;
MouseDownPos = new Point(e.X, e.Y);
PressObject = HitTest(e.X, e.Y);
LastMousePos = MouseDownPos;
if (EditMode)
{
EndEdit(true);
}
ToolTipLayer.HideAllToolTips();
// if the Shift is press, maybe is hover hyperlink, or reverse MouseMethod
ChartMouseMethod mouseMethod = MouseMethod;
if (Helper.TestModifierKeys(Keys.Shift))
{
if (mouseMethod == ChartMouseMethod.Select)
{
mouseMethod = ChartMouseMethod.Scroll;
}
}
//
if (mouseMethod == ChartMouseMethod.Scroll)
{
_ResetCursor();
}
else if (mouseMethod == ChartMouseMethod.Select)
{
if (PressObject.Topic != null)
{
if (PressObject.IsFoldingButton)
{
PressObject.Topic.Toggle();
}
else if (PressObject.Widget != null)
{
if (!PressObject.Widget.Selected)
{
Select(PressObject.Widget, !Helper.TestModifierKeys(Keys.Control));
}
else if (Helper.TestModifierKeys(Keys.Control))
{
Unselect(PressObject.Widget);
}
}
else
{
if (!PressObject.Topic.Selected)
{
Select(PressObject.Topic, !Helper.TestModifierKeys(Keys.Control));
//SelectTopic(PressObject.Topic, !Helper.TestModifierKeys(Keys.Control));
}
else if (Helper.TestModifierKeys(Keys.Control))
{
Unselect(PressObject.Topic);
}
}
}
else if (e.Button == MouseButtons.Left)
{
if (!Helper.TestModifierKeys(Keys.Control))
{
ClearSelection();
}
EnterSelectMode();
}
}
}
