public override UIHandleResult OnMouseDown(MouseEventArgs args)
{
if (args.Button != MouseButtons.Left || !_viewer.EnabledEx)
{
return(UIHandleResult.Pass);
}
//テキスト選択ではないのでちょっと柄悪いが。UserControl->Controlの置き換えに伴う
if (!_viewer.Focused)
{
_viewer.Focus();
}
CharacterDocument document = _viewer.CharacterDocument;
lock (document) {
int col, row;
_viewer.MousePosToTextPos(args.X, args.Y, out col, out row);
int target_id = _viewer.GetTopLine().ID + row;
TextSelection sel = _viewer.TextSelection;
if (sel.State == SelectionState.Fixed)
{
sel.Clear(); //変なところでMouseDownしたとしてもClearだけはする
}
if (target_id <= document.LastLineNumber)
{
//if(InFreeSelectionMode) ExitFreeSelectionMode();
//if(InAutoSelectionMode) ExitAutoSelectionMode();
RangeType rt;
//Debug.WriteLine(String.Format("MouseDown {0} {1}", sel.State, sel.PivotType));
//同じ場所でポチポチと押すとChar->Word->Line->Charとモード変化する
if (sel.StartX != args.X || sel.StartY != args.Y)
{
rt = RangeType.Char;
}
else
{
rt = sel.PivotType == RangeType.Char ? RangeType.Word : sel.PivotType == RangeType.Word ? RangeType.Line : RangeType.Char;
}
//マウスを動かしていなくても、MouseDownとともにMouseMoveが来てしまうようだ
GLine tl = document.FindLine(target_id);
sel.StartSelection(tl, col, rt, args.X, args.Y);
}
}
_viewer.Invalidate(); //NOTE 選択状態に変化のあった行のみ更新すればなおよし
return(UIHandleResult.Capture);
}
public override UIHandleResult OnMouseUp(MouseEventArgs args)
{
TextSelection sel = _viewer.TextSelection;
if (args.Button == MouseButtons.Left)
{
if (sel.State == SelectionState.Expansion || sel.State == SelectionState.Pivot)
{
sel.FixSelection();
}
else
{
sel.Clear();
}
}
return(_viewer.MouseHandlerManager.CapturingHandler == this ? UIHandleResult.EndCapture : UIHandleResult.Pass);
}