private void btnCut_Click(object sender, RoutedEventArgs e)
{
int x = DrawArea.TheLayers.ActiveLayerIndex;
int n = DrawArea.TheLayers[x].Graphics.SelectionCount;
DrawArea.ObjCopyList = new GraphicsList();
for (int i = 0; i < n; i++)
{
DrawArea.ObjCopyList.Add(DrawArea.TheLayers[x].Graphics[i]);
}
CommandDelete command = new CommandDelete(DrawArea.TheLayers);
if (DrawArea.TheLayers[x].Graphics.DeleteSelection())
{
DrawArea.AddCommandToHistory(command);
DrawArea.Refresh();
}
if (btnCopy.IsEnabled == true)
{
btnCopy.IsEnabled = false;
}
if (btnPaste.IsEnabled == false)
{
btnPaste.IsEnabled = true;
}
}
/* PHÍM TẮT KEYBOARD */
#region Keyboard Functions
// Ấn phím DEL trên bàn phím để xóa một đối tượng đã được chọn
private void DrawArea_KeyDown(object sender, KeyEventArgs e)
{
int al = TheLayers.ActiveLayerIndex;
switch (e.KeyCode)
{
case Keys.Delete:
{
int x = TheLayers.ActiveLayerIndex;
CommandDelete command = new CommandDelete(TheLayers);
if (TheLayers[x].Graphics.DeleteSelection())
{
AddCommandToHistory(command);
Refresh();
}
break;
}
case Keys.ControlKey:
_controlKey = true;
break;
default:
break;
}
}
private void menuDelete_Click(object sender, RoutedEventArgs e)
{
int x = DrawArea.TheLayers.ActiveLayerIndex;
CommandDelete command = new CommandDelete(DrawArea.TheLayers);
if (DrawArea.TheLayers[x].Graphics.DeleteSelection())
{
DrawArea.AddCommandToHistory(command);
DrawArea.Refresh();
}
}
/* XỬ LÝ CLICK PHẢI MOUSE */
// Thực hiện xóa được khi click phải mouse chọn Delete
private void deleteToolStripMenuItem_Click(object sender, EventArgs e)
{
int x = TheLayers.ActiveLayerIndex;
CommandDelete command = new CommandDelete(TheLayers);
if (TheLayers[x].Graphics.DeleteSelection())
{
AddCommandToHistory(command);
Refresh();
}
}