public void ShowChildAtCursor(Form form)
{
Point point = mdiClient.PointToClient(Cursor.Position);
point.Offset(-8, -8);
form.StartPosition = FormStartPosition.Manual;
form.Location = point;
ShowChild(form);
}
private void Resize(Point p)
{
if (originalForm.IsMdiChild)
{
MdiClient mdiClient = GetMdiClient(originalForm.MdiParent);
p = mdiClient.PointToClient(originalForm.PointToScreen(p));
}
else
{
p = originalForm.PointToScreen(p);
}
Screen activeScr = Screen.FromPoint(p);
formRect = originalForm.Bounds;
int iRight = formRect.Right;
int iBottom = formRect.Bottom;
// no normalize required
// first strech the window to the new position
if ((resizeDirection & ResizeDir.Left) == ResizeDir.Left)
{
formRect.Width = formRect.X - p.X + formRect.Width;
formRect.X = iRight - formRect.Width;
}
if ((resizeDirection & ResizeDir.Right) == ResizeDir.Right)
{
formRect.Width = p.X - formRect.Left;
}
if ((resizeDirection & ResizeDir.Top) == ResizeDir.Top)
{
formRect.Height = formRect.Height - p.Y + formRect.Top;
formRect.Y = iBottom - formRect.Height;
}
if ((resizeDirection & ResizeDir.Bottom) == ResizeDir.Bottom)
{
formRect.Height = p.Y - formRect.Top;
}
// this is the real new position
// now, try to snap it to different objects (first to screen)
// CARE !!! We use "Width" and "Height" as Bottom & Right!! (C++ style)
//formOffsetRect = new Rectangle ( stickGap + 1, stickGap + 1, 0, 0 );
formOffsetRect.X = stickGap + 1;
formOffsetRect.Y = stickGap + 1;
formOffsetRect.Height = 0;
formOffsetRect.Width = 0;
if (stickToScreen && !originalForm.IsMdiChild)
{
Resize_Stick(activeScr.WorkingArea, false);
}
if (stickToOther)
{
// now try to stick to other forms
foreach (Form sw in GlobalStickyWindows)
{
Rectangle swRect = GetStickyWindowRect(sw);
if (swRect != Rectangle.Empty)
{
Resize_Stick(swRect, true);
}
}
}
// Fix (clear) the values that were not updated to stick
if (formOffsetRect.X == stickGap + 1)
{
formOffsetRect.X = 0;
}
if (formOffsetRect.Width == stickGap + 1)
{
formOffsetRect.Width = 0;
}
if (formOffsetRect.Y == stickGap + 1)
{
formOffsetRect.Y = 0;
}
if (formOffsetRect.Height == stickGap + 1)
{
formOffsetRect.Height = 0;
}
// compute the new form size
if ((resizeDirection & ResizeDir.Left) == ResizeDir.Left)
{ // left resize requires special handling of X & Width acording to MinSize and MinWindowTrackSize
int iNewWidth = formRect.Width + formOffsetRect.Width + formOffsetRect.X;
if (originalForm.MaximumSize.Width != 0)
{
iNewWidth = Math.Min(iNewWidth, originalForm.MaximumSize.Width);
}
iNewWidth = Math.Min(iNewWidth, SystemInformation.MaxWindowTrackSize.Width);
iNewWidth = Math.Max(iNewWidth, originalForm.MinimumSize.Width);
iNewWidth = Math.Max(iNewWidth, SystemInformation.MinWindowTrackSize.Width);
formRect.X = iRight - iNewWidth;
formRect.Width = iNewWidth;
}
else
{ // other resizes
formRect.Width += formOffsetRect.Width + formOffsetRect.X;
}
if ((resizeDirection & ResizeDir.Top) == ResizeDir.Top)
{
int iNewHeight = formRect.Height + formOffsetRect.Height + formOffsetRect.Y;
if (originalForm.MaximumSize.Height != 0)
{
iNewHeight = Math.Min(iNewHeight, originalForm.MaximumSize.Height);
}
iNewHeight = Math.Min(iNewHeight, SystemInformation.MaxWindowTrackSize.Height);
iNewHeight = Math.Max(iNewHeight, originalForm.MinimumSize.Height);
iNewHeight = Math.Max(iNewHeight, SystemInformation.MinWindowTrackSize.Height);
formRect.Y = iBottom - iNewHeight;
formRect.Height = iNewHeight;
}
else
{ // all other resizing are fine
formRect.Height += formOffsetRect.Height + formOffsetRect.Y;
}
// Done !!
originalForm.Bounds = formRect;
}