//------------------------------------------------------------------------------
private void DisplayPanel_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
mNewPath_Click(sender, e);
MovingButtonIdx = -1;
}
else if (displayPanel.Cursor == Cursors.Hand)
{
MovingButtonIdx = GetButtonIndex(new IntPoint(e.X * scale, e.Y * scale), out MovingButtonSeg);
BmpUpdateNeeded();
}
else
{
//Add a new control point ...
CurveType rbPathType = GetRadiobuttonPathType();
MultiPath mp = GetActivePath();
if (mp.Count == 0)
{
mp.NewMultiPathSegment(rbPathType, new Path());
}
else if (rbPathType != GetCurrentPathType(mp))
{
if (rbPathType != GetCurrentPathType(mp))
{
Path tmp = new Path();
if (!mp.IsValid())
{
MultiPathSegment mps = mp[mp.Count - 1];
foreach (IntPoint ip in mps)
{
tmp.Add(ip);
}
mp.RemoveLast();
}
mp.NewMultiPathSegment(rbPathType, tmp);
}
}
if (!mp[mp.Count - 1].Add(new IntPoint(e.X * scale, e.Y * scale)))
{
mp.NewMultiPathSegment(rbPathType, new Path());
mp[mp.Count - 1].Add(new IntPoint(e.X * scale, e.Y * scale));
}
UpdateBtnAndMenuState();
BmpUpdateNeeded();
MovingButtonIdx = -1;
}
LeftButtonPressed = (e.Button == MouseButtons.Left);
}
//------------------------------------------------------------------------------
private void mNewPath_Click(object sender, EventArgs e)
{
MultiPath mp = GetActivePath();
if (!mp.IsValid())
{
return;
}
int refID = (rbClipPoly.Checked ? CLIP : SUBJECT);
mp.owner.NewMultiPath((UInt16)refID, mp.IsClosed);
UpdateBtnAndMenuState();
BmpUpdateNeeded();
}
//------------------------------------------------------------------------------
private void UpdateBtnAndMenuState()
{
mClear.Enabled = allPaths.Count > 0;
MultiPath mp = GetActivePath();
int cnt = allPaths.Count;
MultiPath subjMp = GetCurrentSubjMultiPath();
cbSubjClosed.Checked = (subjMp != null && subjMp.IsClosed);
if (mp.Count == 0)
{
mUndo.Enabled = mp.owner.Count > 0;
mNewPath.Enabled = false;
bNewPath.Enabled = false;
return;
}
int j = mp[mp.Count - 1].Count;
mUndo.Enabled = (mp.Count > 1 || j > 0);
bNewPath.Enabled = mp.IsValid();
mNewPath.Enabled = bNewPath.Enabled;
}
