private void panel1_MouseMove(object sender, MouseEventArgs e)
{
m_action = Action.Move;
if (m_paint)
{
switch (m_currItem)
{
case Item.Brush:
{
actions.Add(new DrawAction(m_action, e.X, e.Y, m_currItem, m_paintcolor));
m_color = new SolidBrush(m_paintcolor);
using (Graphics g = panel1.CreateGraphics())
{
g.FillEllipse(m_color, e.X, e.Y, 20, 20);
}
break;
}
case Item.Pencil:
{
actions.Add(new DrawAction(m_action, e.X, e.Y, m_currItem, m_paintcolor));
m_color = new SolidBrush(m_paintcolor);
using (Graphics g = panel1.CreateGraphics())
{
g.FillEllipse(m_color, e.X, e.Y, 5, 5);
}
break;
}
}
}
}
private void panel1_MouseDown(object sender, MouseEventArgs e)
{
m_action = Action.Down;
actions.Add(new DrawAction(m_action, e.X, e.Y, m_currItem, m_paintcolor));
m_paint = true;
m_x = e.X;
m_y = e.Y;
}
private void panel1_MouseUp(object sender, MouseEventArgs e)
{
m_action = Action.Up;
actions.Add(new DrawAction(m_action, e.X, e.Y, m_currItem, m_paintcolor));
m_paint = false;
m_x1 = e.X;
m_y1 = e.Y;
switch (m_currItem)
{
case Item.Ellipse:
{
Pen myPen = new Pen(m_paintcolor);
using (Graphics g = panel1.CreateGraphics())
{
g.DrawEllipse(myPen, m_x, m_y, m_x1 - m_x, m_y1 - m_y);
}
break;
}
case Item.Rectangle:
{
var myPen = new Pen(m_paintcolor);
using (Graphics g = panel1.CreateGraphics())
{
g.DrawRectangle(myPen, Math.Min(m_x, m_x1), Math.Min(m_y, m_y1), Math.Abs(m_x1 - m_x), Math.Abs(m_y1 - m_y));
}
break;
}
case Item.Line:
{
Pen myPen = new Pen(m_paintcolor);
using (Graphics g = panel1.CreateGraphics())
{
g.DrawLine(myPen, m_x, m_y, m_x1, m_y1);
}
break;
}
}
}