private void addUndoAction(UndoActionType type)
{
if (CurrentDrawObject == null)
{
return;
}
_undos.Push(new UndoAction()
{
UndoActionType = type,
DrawObject = CurrentDrawObject.GetSerializable()
});
}
private void undoRedo(UndoAction action, Stack <UndoAction> opposites, bool redo)
{
var opposite = new UndoAction();
if (action.UndoActionType == UndoActionType.AddDrawObject)
{
opposite.UndoActionType = UndoActionType.DeleteDrawObject;
}
else if (action.UndoActionType == UndoActionType.DeleteDrawObject)
{
opposite.UndoActionType = UndoActionType.AddDrawObject;
}
else
{
opposite.UndoActionType = action.UndoActionType;
}
if (action.UndoActionType == UndoActionType.DeleteDrawObject)
{
CurrentDrawObject = DrawObject.FromSerialized(_currGraphics, action.DrawObject, _zoomMultiplier);
opposite.DrawObject = CurrentDrawObject.GetSerializable();
_drawObjects.Add(CurrentDrawObject);
}
else
{
var drawObj = _drawObjects.First(d => d.ID == action.DrawObject.ID);
opposite.DrawObject = drawObj.GetSerializable();
if (action.UndoActionType == UndoActionType.AddDrawObject)
{
_drawObjects.Remove(drawObj);
}
else if (action.UndoActionType == UndoActionType.CropImage)
{
_cropRectangle = redo ?
(CurrentDrawObject as SelectDrawObject).GetSelectionRectangle()
: Rectangle.Empty;
LoadImage(true);
}
else
{
drawObj.Undo(action.DrawObject);
}
}
opposites.Push(opposite);
serializeDrawObjects();
redraw(true);
}
//private void pictMain_KeyPress(object sender, KeyPressEventArgs e)
//{
// if (CurrentDrawObject is TextDrawObject)
// {
// if (e.KeyChar == 13)
// (CurrentDrawObject as TextDrawObject).CurrentText += "\r\n";
// else
// (CurrentDrawObject as TextDrawObject).CurrentText += e.KeyChar.ToString();
// redraw(true);
// }
//}
private void pictMain_MouseUp(object sender, MouseEventArgs e)
{
if (CurrentDrawObject != null && !_drawObjects.Contains(CurrentDrawObject))
{
_drawObjects.Add(CurrentDrawObject);
addUndoAction(UndoActionType.AddDrawObject);
if (!(CurrentDrawObject is TextDrawObject))
{
serializeDrawObjects();
}
btnCrop.Visible = CurrentDrawObject is SelectDrawObject;
CurrentDrawObject.Selected = true;
//if (!(_currentDrawObject is TextDrawObject) && !(_currentDrawObject is SelectDrawObject))
// _currentDrawObject = null;
_lock = true;
foreach (var tool in _tools)
{
tool.Checked = false;
}
_drawObjectType = null;
setVisibilities();
_lock = false;
if (CurrentDrawObject is FillDrawObject)
{
drawObjects(CurrentDrawObject as FillDrawObject);
}
redraw(true);
}
else if (CurrentDrawObject != null)
{
var peek = _undos.Peek();
if (peek.UndoActionType == UndoActionType.MoveResize)
{
var test = CurrentDrawObject.GetSerializable();
if (test.ID == peek.DrawObject.ID &&
test.StartPoint.X == peek.DrawObject.StartPoint.X &&
test.StartPoint.Y == peek.DrawObject.StartPoint.Y &&
test.EndPoint.X == peek.DrawObject.EndPoint.X &&
test.EndPoint.Y == peek.DrawObject.EndPoint.Y)
{
_undos.Pop();
}
}
serializeDrawObjects();
}
_mouseDownLocation = Point.Empty;
}