// Gan cac gia tri cho m_Shape
private void Gan(CShape shape)
{
shape.SetDrawMode(GDI.R2_NOTXORPEN);
shape.SetWidth(int.Parse(tcmbWidth.SelectedItem.ToString()));
shape.SetPenStyle(Chon(tcmbPenStyle.SelectedItem.ToString()));
shape.SetColor(_RGB(m_R, m_G, m_B));
}
private void panel1_MouseDown(object sender, MouseEventArgs e)
{
flag = !flag;
if (flag) // bat dau ve
{
tlbl.Visible = false;
tcmbPenStyle.Enabled = false;
tcmbWidth.Enabled = false;
m_Start.x = m_End.x = e.X;
m_Start.y = m_End.y = e.Y;
if (m_Shape.ToString() == "CPolygon")
{
HDC hdc = (HDC)User.GetDC(panel1.Handle);
CRectangle rec = new CRectangle(m_End.x - distance, m_End.y - distance, m_End.x + distance, m_End.y + distance);
rec.SetDrawMode(GDI.R2_NOTXORPEN);
rec.Draw(hdc);
User.ReleaseDC(panel1.Handle, hdc);
m_arrPoint = new POINT[1];
m_arrPoint[0] = m_End;
}
}
else
{
HDC hdc = (HDC)User.GetDC(panel1.Handle);
if (m_Shape.ToString() == "CPolygon")
{
if (e.Clicks != 2)
{
m_Start = m_End;
flag = !flag;
CRectangle rec = new CRectangle(m_End.x - distance, m_End.y - distance, m_End.x + distance, m_End.y + distance);
rec.SetDrawMode(GDI.R2_NOTXORPEN);
rec.Draw(hdc);
User.ReleaseDC(panel1.Handle, hdc);
Array.Resize <POINT>(ref m_arrPoint, m_arrPoint.Length + 1);
m_arrPoint[m_arrPoint.Length - 1] = m_End;
return;
}
else
{
m_Shape.SetPoints(m_arrPoint);
foreach (POINT t in m_arrPoint)
{
CRectangle rec = new CRectangle(t.x - distance, t.y - distance, t.x + distance, t.y + distance);
rec.SetDrawMode(GDI.R2_NOTXORPEN);
rec.Draw(hdc);
}
m_arrPoint = null;
}
}
m_Shape.SetDrawMode(GDI.R2_COPYPEN);
m_Shape.Draw(hdc);
// Them hinh vao tap hop
if (m_arrShape == null)
{
m_arrShape = new CShape[1];
}
else
{
Array.Resize <CShape>(ref m_arrShape, m_arrShape.Length + 1);
}
m_arrShape[m_arrShape.Length - 1] = m_Shape;
switch (m_Shape.ToString())
{
case "CLine":
m_Shape = new CLine();
break;
case "CEllipse":
m_Shape = new CEllipse();
break;
case "CPolygon":
m_Shape = new CPolygon();
break;
case "CRectangle":
m_Shape = new CRectangle();
break;
}
Gan(m_Shape);
User.ReleaseDC(panel1.Handle, hdc);
tcmbPenStyle.Enabled = true;
tcmbWidth.Enabled = true;
tlbl.Visible = true;
}
}