private void RegisterForMessages()
{
Messenger.Default.Register <NotificationMessage>(this, message =>
{
if (message.Notification == Commands.AddItem)
{
if (CommandAdd.CanExecute(null))
{
CommandAdd.Execute(null);
}
}
else if (message.Notification == Commands.EditItem)
{
if (CommandEdit.CanExecute(null))
{
CommandEdit.Execute(null);
}
}
if (message.Notification == Commands.ResetItem)
{
if (CommandReset.CanExecute(null))
{
CommandReset.Execute(null);
}
}
else if (message.Notification == Commands.DeleteItem)
{
if (CommandDelete.CanExecute(null))
{
CommandDelete.Execute(null);
}
}
else if (message.Notification == Commands.ResetAll)
{
if (CommandResetAll.CanExecute(null))
{
CommandResetAll.Execute(null);
}
}
});
Messenger.Default.Register <NotificationMessage <ItemModel> >(this, message =>
{
if (message.Notification == Notifications.NotifyItemSelected)
{
RaisePropertyChanged("IsItemSelected");
RaiseCanExecuteChanged(CommandEdit);
RaiseCanExecuteChanged(CommandReset);
RaiseCanExecuteChanged(CommandDelete);
}
});
}
private void bt_line_Click(object sender, EventArgs e)
{
DLine line = new DLine
{
MyBrush = new SolidBrush(Color.FromArgb(128, Color.DarkOrchid)),
Selectable = true
//X = e.Location.X,
//Y = e.Location.Y,
};
CommandAdd add = new CommandAdd();
add.item = line;
paintPanel1.SetCommand(add);
}
private void bt_txt_Click(object sender, EventArgs e)
{
DText txt = new DText
{
MyBrush = new SolidBrush(Color.FromArgb(128, Color.DarkOrchid)),
Words = tb_txt.Text,
Selectable = true
//X = e.Location.X,
//Y = e.Location.Y,
};
CommandAdd add = new CommandAdd();
add.item = txt;
paintPanel1.SetCommand(add);
}
private void bt_rect_Click(object sender, EventArgs e)
{
DRectangle rect = new DRectangle
{
MyBrush = new SolidBrush(Color.FromArgb(128, Color.DarkOrchid)),
//X = e.Location.X,
//Y = e.Location.Y,
Width = 20,
Height = 20,
Selectable = true
};
CommandAdd add = new CommandAdd();
add.item = rect;
paintPanel1.SetCommand(add);
}
private void PaintPanel_MouseClick(object sender, MouseEventArgs e)
{
Matrix matrix = new Matrix();
Point[] points = new Point[1];
points[0] = new Point(e.X, e.Y);
if (scene.matrix != null)
{
matrix = scene.matrix.Clone();
}
if (e.Button == MouseButtons.Left)
{
if (command == null)
{
var currentSelectedObj = scene.SelectObject(points[0].X, points[0].Y);
if (currentSelectedObj != null)
{
AddSelectedItem(currentSelectedObj);
}
return;
}
if (command is CommandAdd)
{
CommandAdd addCommand = command as CommandAdd;
if (addCommand.item != null)
{
if (!firstStepDone) // 第一次画
{
addCommand.item.X = e.X;
addCommand.item.Y = e.Y;
firstStepDone = true;
scene.AddDrawingObject(addCommand.item);
}
else
{
if (addCommand.item is DPath)
{
((DPath)addCommand.item).ConfirmPoint(new Point(points[0].X, points[0].Y));
}
else if (addCommand.item is DLine)
{
((DLine)addCommand.item).X2 = points[0].X;
((DLine)addCommand.item).Y2 = points[0].Y;
command = null;
finishedStep = true;
}
}
}
}
}
else if (e.Button == MouseButtons.Right)
{
if (command is CommandAdd)
{
CommandAdd addCommand = command as CommandAdd;
if (addCommand.item != null)
{
if (addCommand.item is DPath)
{
((DPath)addCommand.item).ConfirmPoint(new Point(points[0].X, points[0].Y));
command = null;
finishedStep = true;
}
}
}
}
}
