public void showSelectForm(ref Bitmap b, IntPtr fg_hWnd, IWin32Window owner)
{
x1 = -1;
isClicking = false;
currentCP = ControlPoints.None;
rectFrameList.Clear();
state = SelectionEditState.NoSelection;
screenShot = b;
old_hWnd = fg_hWnd;
this.Show(owner);
}
private void Capture_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Escape)
{
abortClip();
return;
}
if (e.KeyCode == rectFrameKey)
{
if (state == SelectionEditState.NoSelection)
{
return;
}
if (isClicking)
{
return;
}
if (state == SelectionEditState.DrawingRectFrame) // already in drawing rect frame mode
{
state = SelectionEditState.Selected;
}
else
{
state = SelectionEditState.DrawingRectFrame;
}
this.Cursor = Cursors.Cross;
this.Refresh();
return;
}
if (e.Control && e.KeyCode == Keys.Z)
{
if (isClicking)
{
return;
}
if (rectFrameList.Count == 0)
{
return;
}
rectFrameList.RemoveAt(rectFrameList.Count - 1);
this.Refresh();
}
}
private void Capture_MouseUp(object sender, MouseEventArgs e)
{
isClicking = false;
if (state == SelectionEditState.Selecting)
{
if (x1 == x2 || y1 == y2)
{
// x1 = -1;
state = SelectionEditState.NoSelection;
this.Refresh();
}
else
{
state = SelectionEditState.Selected;
}
}
//x1 = x2 = y1 = y2 = -1;
//x1 = -1;
}
private void Capture_MouseDown(object sender, MouseEventArgs e)
{
int tx1, ty1, tx2, ty2; // tmp x, y
if (e.Button == MouseButtons.Left)
{
isClicking = true;
if (state == SelectionEditState.DrawingRectFrame) // is drawing rect frame
{
if (e.X < Math.Min(x1, x2) || e.X > Math.Max(x1, x2) || e.Y < Math.Min(y1, y2) || e.Y > Math.Max(y1, y2))
{
// start position out of range, cancel current clicking
isClicking = false;
return;
}
RectFrame frame = new RectFrame();
frame.x1 = e.X;
frame.y1 = e.Y;
rectFrameList.Add(frame);
}
else // selection
{
switch (currentCP)
{
case ControlPoints.None: // first/re select
state = SelectionEditState.Selecting;
rectFrameList.Clear();
x1 = x2 = old_x = e.X;
y1 = y2 = old_y = e.Y;
break;
case ControlPoints.Top:
case ControlPoints.Left:
case ControlPoints.LeftTop: // modifying selection
tx2 = Math.Min(x1, x2);
ty2 = Math.Min(y1, y2);
tx1 = Math.Max(x1, x2);
ty1 = Math.Max(y1, y2);
x1 = tx1;
y1 = ty1;
x2 = tx2;
y2 = ty2;
break;
case ControlPoints.Bottom:
case ControlPoints.Right:
case ControlPoints.RightBottom:
tx2 = Math.Max(x1, x2);
ty2 = Math.Max(y1, y2);
tx1 = Math.Min(x1, x2);
ty1 = Math.Min(y1, y2);
x1 = tx1;
y1 = ty1;
x2 = tx2;
y2 = ty2;
break;
case ControlPoints.LeftBottom:
tx2 = Math.Min(x1, x2);
ty2 = Math.Max(y1, y2);
tx1 = Math.Max(x1, x2);
ty1 = Math.Min(y1, y2);
x1 = tx1;
y1 = ty1;
x2 = tx2;
y2 = ty2;
break;
case ControlPoints.RightTop:
tx2 = Math.Max(x1, x2);
ty2 = Math.Min(y1, y2);
tx1 = Math.Min(x1, x2);
ty1 = Math.Max(y1, y2);
x1 = tx1;
y1 = ty1;
x2 = tx2;
y2 = ty2;
break;
case ControlPoints.Inside:
old_x = e.X;
old_y = e.Y;
break;
}
}
}
else if (e.Button == MouseButtons.Right)
{
if (state == SelectionEditState.NoSelection)
{
abortClip();
return;
}
commitClip();
}
}
