| private RaiseMouseMove ( MouseEventArgs e ) : void | ||
| e | MouseEventArgs | |
| Résultat | void | |
public void HandleMouseDown(Point mousepos, MouseButtons mouseButtons)
{
TextLocation selectionStartPos;
TextArea.SelectionManager.WhereFrom = SelSource.Gutter;
int realline = TextArea.TextView.GetLogicalLine(mousepos.Y);
bool isRect = (Control.ModifierKeys & Keys.Alt) != 0;
if (realline >= 0 && realline < TextArea.Document.TotalNumberOfLines)
{
// shift-select
if ((Control.ModifierKeys & Keys.Shift) != 0)
{
if (!TextArea.SelectionManager.HasSomethingSelected && realline != TextArea.Caret.Position.Y)
{
if (realline >= TextArea.Caret.Position.Y)
{
// at or below starting selection, place the cursor on the next line
// nothing is selected so make a new selection from cursor
selectionStartPos = TextArea.Caret.Position;
// whole line selection - start of line to start of next line
if (realline < TextArea.Document.TotalNumberOfLines - 1)
{
TextArea.SelectionManager.SetSelection(selectionStartPos, new TextLocation(0, realline + 1), isRect);
TextArea.Caret.Position = new TextLocation(0, realline + 1);
}
else
{
TextArea.SelectionManager.SetSelection(selectionStartPos, new TextLocation(TextArea.Document.GetLineSegment(realline).Length + 1, realline), isRect);
TextArea.Caret.Position = new TextLocation(TextArea.Document.GetLineSegment(realline).Length + 1, realline);
}
}
else
{
// prior lines to starting selection, place the cursor on the same line as the new selection
// nothing is selected so make a new selection from cursor
selectionStartPos = TextArea.Caret.Position;
// whole line selection - start of line to start of next line
TextArea.SelectionManager.SetSelection(selectionStartPos, new TextLocation(0, realline + 1), isRect);
// textArea.SelectionManager.SetSelection(selectionStartPos, new TextLocation(selectionStartPos.X, selectionStartPos.Y), isRect);
// textArea.SelectionManager.ExtendSelection(new TextLocation(selectionStartPos.X, selectionStartPos.Y), new TextLocation(0, realline), false);
TextArea.Caret.Position = new TextLocation(0, realline);
}
}
else
{
// let MouseMove handle a shift-click in a gutter
MouseEventArgs e = new MouseEventArgs(mouseButtons, 1, mousepos.X, mousepos.Y, 0);
TextArea.RaiseMouseMove(e);
}
}
else // this is a new selection with no shift-key
{
// sync the textareamousehandler mouse location
// (fixes problem with clicking out into a menu then back to the gutter whilst there is a selection)
TextArea.MousePos = mousepos;
selectionStartPos = new TextLocation(0, realline);
//textArea.SelectionManager.ClearSelection();
// whole line selection - start of line to start of next line
if (realline < TextArea.Document.TotalNumberOfLines - 1)
{
TextArea.SelectionManager.SetSelection(selectionStartPos, new TextLocation(selectionStartPos.X, selectionStartPos.Y + 1), isRect);
TextArea.Caret.Position = new TextLocation(selectionStartPos.X, selectionStartPos.Y + 1);
}
else
{
TextArea.SelectionManager.SetSelection(new TextLocation(0, realline), new TextLocation(TextArea.Document.GetLineSegment(realline).Length + 1, selectionStartPos.Y), isRect);
TextArea.Caret.Position = new TextLocation(TextArea.Document.GetLineSegment(realline).Length + 1, selectionStartPos.Y);
}
}
}
}
