private void pbMain_MouseDown(object sender, MouseEventArgs e)
{
if (e.Clicks != 1)
{
return;
}
switch (_drawMode)
{
case DrawMode.Undefined:
case DrawMode.DragAndDrop:
{
if (_currentShapeFactory != null)
{
_lastShape = _currentShapeFactory.GetShape(_currentPen, _currentBrush);
_lastShape.SetPostition(e.Location);
_drawMode = _lastShape.DrawMode();
_history.Add(_lastShape);
UpdateUndoRedo();
pbMain.Invalidate();
}
break;
}
case DrawMode.ByPoint:
{
if (_lastShape != null)
{
_lastShape.AddPoint(e.Location);
_drawMode = _lastShape.DrawMode();
pbMain.Invalidate();
}
break;
}
}
}
private void redoToolStripMenuItem_Click(object sender, EventArgs e)
{
_history.Redo();
UpdateUndoRedo();
_lastShape = _history.LastItem;
_drawMode = DrawMode.Undefined;
pbMain.Invalidate();
}
private void ToolButtonClick(object sender, EventArgs e)
{
_drawMode = DrawMode.Undefined;
_currentShapeFactory = (BaseShapeFactory)((ToolStripButton)sender).Tag;
foreach (var Tool in tsMain.Items)
{
if (Tool == sender)
{
continue;
}
if (Tool is ToolStripButton && ((ToolStripButton)Tool).Tag != null)
{
((ToolStripButton)Tool).Checked = false;
}
}
}
public FormMain()
{
InitializeComponent();
_currentPen = new Pen(Color.Black);
_currentBrush = new SolidBrush(Color.Empty);
tsbLineColor.BackColor = Color.Black;
tsbFillColor.BackColor = Color.Empty;
_history = new History();
_drawMode = DrawMode.Undefined;
saveToolStripMenuItem.Enabled = false;
// Initialize buttons with factories
tsbLine.Tag = new LineFactory();
tsbBroken.Tag = new BrokenFactory();
tsbRectangle.Tag = new RectangleFactory();
tsbEllipse.Tag = new EllipseFactory();
tsbPolygon.Tag = new PolygonFactory();
_toolIndex = 5;
}
private void pbMain_DoubleClick(object sender, EventArgs e)
{
_drawMode = DrawMode.Undefined;
}