private void 열기ToolStripMenuItem_Click(object sender, EventArgs e)
{
OpenFileDialog chooser = new OpenFileDialog();
chooser.Title = "File Open";
chooser.Filter = "All Files (*.*)|*.*";
chooser.InitialDirectory = ".";
if (chooser.ShowDialog() != DialogResult.OK)
{
return;
}
_fileName = chooser.FileName;
_figures.Clear();
_selectedFigure = null;
BinaryFormatter formatter = new BinaryFormatter();
Stream input = File.OpenRead(_fileName);
_figures = (FigureList)formatter.Deserialize(input);
input.Close();
for (int i = 0; i < _figures.Count; i++)
{
Figure ptr = _figures.getAt(i);
ptr.makeRegion();
ptr.setView(canvas);
if (ptr is Point)
{
ptr.setPopup(pointPopup);
}
else if (ptr is Line)
{
ptr.setPopup(linePopup);
}
else if (ptr is Box)
{
ptr.setPopup(boxPopup);
}
else if (ptr is Circle)
{
ptr.setPopup(circlePopup);
}
}
canvas.Invalidate();
}
private void canvas_Paint(object sender, PaintEventArgs e)
{
SolidBrush backBrush = new SolidBrush(BackColor);
e.Graphics.FillRectangle(backBrush, canvas.ClientRectangle);
backBrush.Dispose();
Rectangle a = new Rectangle(10, 20, 30, 30);
Graphics g = e.Graphics;
for (int i = 0; i < _figures.Count; i++)
{
Figure fig = _figures.getAt(i);
fig.draw(g);
}
if (canvas.Image != null)
{
Rectangle r = canvas.ClientRectangle;
Graphics g1 = e.Graphics;
Graphics g2 = Graphics.FromImage(canvas.Image);
IntPtr dc1 = g1.GetHdc();
IntPtr dc2 = g2.GetHdc();
BitBlt(dc2, 0, 0, r.Width, r.Height,
dc1, 0, 0, 0x00CC0020);
g1.ReleaseHdc(dc1);
g2.ReleaseHdc(dc2);
g2.Dispose();
}
}