RectangleF GetContextMenuBounds(SubMenuOverlay sub, PointF location)
{
if (Width < 5 || Height < 5)
{
return(RectangleF.Empty);
}
SizeF sz = sub.PreferredSize(CTX);
float w = Math.Min(sz.Width, Width);
float h = Math.Min(sz.Height, Height);
float y = location.Y;
RectangleF rsub = new RectangleF(
location.X,
y,
w,
h);
if (rsub.Right > Width)
{
rsub.Offset(Width - rsub.Right, 0);
}
if (rsub.Bottom > Height)
{
rsub.Offset(0, Height - rsub.Bottom);
}
return(rsub);
}
private void ShowSubMenu(IGuiMenuItem mainmenuItem)
{
if (mainmenuItem == null || mainmenuItem.Children.IsNullOrEmpty())
{
return;
}
if (SubMenu != null)
{
CloseSubMenu();
}
SubMenu = new SubMenuOverlay("sub", mainmenuItem.Children);
SubMenu.ZIndex = Math.Max(SubMenu.ZIndex, this.ZIndex + 1);
SubMenu.SetBounds(GetSubMenuBounds(SubMenu));
this.AddChild(SubMenu);
SubMenu.Closing += delegate {
CloseSubMenu();
m_LastActiveItemIndex = ActiveItem == null ? -1 : Menu.IndexOf(ActiveItem);
ActiveItem = null;
Invalidate();
};
//SubMenu.Focus ();
//this.Focus();
this.Select();
//bool bTest = SubMenu.CanFocus;
Expanded = true;
Invalidate();
}
protected virtual RectangleF GetSubMenuBounds(SubMenuOverlay sub)
{
SummerGUIWindow aw = ParentWindow;
if (aw == null || aw.Width < 5 || aw.Height < 5)
{
return(RectangleF.Empty);
}
RectangleF bounds = Bounds;
SizeF sz = sub.PreferredSize(aw);
float w = Math.Min(sz.Width, aw.Width);
float h = Math.Min(sz.Height, aw.Height);
float y = 0;
try {
y = itemStartPositions[Menu.IndexOf(m_ActiveItem)] - Padding.Top;
} catch (Exception ex) {
ex.LogError();
}
RectangleF rsub = new RectangleF(
bounds.Right,
y,
w,
h);
try {
float ofs = 5 * ParentWindow.ScaleFactor;
rsub.Offset(-ofs, -ofs);
} catch (Exception ex) {
ex.LogError();
}
if (rsub.Right > aw.Width)
{
rsub.Offset(aw.Width - rsub.Right, 0);
}
if (rsub.Bottom > aw.Height)
{
rsub.Offset(0, aw.Height - rsub.Bottom);
}
return(rsub);
}
public void ShowContextMenu(PointF location, IGuiMenu menu)
{
lock (contextMenuLock) {
if (ContextMenuOverlay != null)
{
CloseContextMenu();
}
ContextMenuOverlay = new SubMenuOverlay("contextmenu", menu);
ContextMenuOverlay.Closing += delegate {
CloseContextMenu();
};
AddChild(ContextMenuOverlay);
ContextMenuOverlay.SetBounds(GetContextMenuBounds(ContextMenuOverlay, location));
ContextMenuOverlay.CanFocus = false;
ContextMenuOverlay.Visible = true;
ContextMenuOverlay.Selected = true;
Invalidate();
}
}
protected virtual RectangleF GetSubMenuBounds(SubMenuOverlay sub)
{
SummerGUIWindow aw = ParentWindow;
if (aw == null)
{
return(RectangleF.Empty);
}
RectangleF bounds = MarginBounds;
try {
bounds.Offset(itemStartPositions[Menu.IndexOf(ActiveItem)], 0);
} catch (Exception ex) {
ex.LogError();
}
float spaceAbove = bounds.Top;
float spaceBelow = aw.Height - bounds.Bottom;
SizeF sz = sub.PreferredSize(aw);
float desiredHeight = sz.Height;
float desiredWidth = sz.Width;
float itemHeight = sub.LineHeight;
float maxspace = Math.Max(spaceAbove, spaceBelow);
if (desiredHeight > maxspace)
{
desiredHeight = (int)(maxspace / itemHeight) * itemHeight;
}
RectangleF result = RectangleF.Empty;
if (desiredHeight > 0 && desiredWidth > 0)
{
if (spaceBelow >= desiredHeight)
{
result = new RectangleF(bounds.Left, bounds.Bottom, desiredWidth, desiredHeight);
}
else if (spaceAbove >= desiredHeight)
{
result = new RectangleF(bounds.Left, bounds.Top - desiredHeight, desiredWidth, desiredHeight);
}
}
if (!result.IsEmpty)
{
if (result.Left < 1)
{
result.Offset(Math.Abs(result.Left) + 3, -2);
}
else
{
result.Offset(-2, -2);
}
}
return(result);
}