/// <summary>
/// Compares the system screen list to the screens associated with Cairo windows, then creates or destroys windows as necessary.
/// Only affects non-primary screens, as Cairo always opens on at least the primary screen.
/// Runs at startup and when a WM_DISPLAYCHANGE message is received by the main MenuBar window.
/// </summary>
public static void ScreenSetup(bool skipChecks = false)
{
lock (screenSetupLock)
{
IsSettingScreens = true;
List <string> sysScreens = new List <string>();
List <string> openScreens = new List <string>();
List <string> addedScreens = new List <string>();
List <string> removedScreens = new List <string>();
ResetScreenCache();
if (!skipChecks)
{
// enumerate screens
if (Settings.EnableMenuBarMultiMon || !Settings.EnableTaskbar)
{
foreach (MenuBar bar in MenuBarWindows)
{
if (bar.Screen != null)
{
openScreens.Add(bar.Screen.DeviceName);
}
}
}
else if (Settings.EnableTaskbarMultiMon)
{
foreach (Taskbar bar in TaskbarWindows)
{
if (bar.Screen != null)
{
openScreens.Add(bar.Screen.DeviceName);
}
}
}
else
{
return;
}
foreach (var screen in System.Windows.Forms.Screen.AllScreens)
{
Trace.WriteLine(string.Format("{0} found at {1} with area {2}; primary? {3}", screen.DeviceName, screen.Bounds.ToString(), screen.WorkingArea.ToString(), screen.Primary.ToString()));
sysScreens.Add(screen.DeviceName);
}
// figure out which screens have been added vs removed
foreach (string name in sysScreens)
{
if (!openScreens.Contains(name))
{
addedScreens.Add(name);
}
}
foreach (string name in openScreens)
{
if (!sysScreens.Contains(name))
{
removedScreens.Add(name);
}
}
if (removedScreens.Count == sysScreens.Count)
{
// remove everything?! no way!
return;
}
// close windows associated with removed screens
foreach (string name in removedScreens)
{
// close taskbars
Taskbar taskbarToClose = null;
foreach (Taskbar bar in TaskbarWindows)
{
if (bar.Screen != null && bar.Screen.DeviceName == name)
{
taskbarToClose = bar;
break;
}
}
if (taskbarToClose != null)
{
taskbarToClose.Close();
TaskbarWindows.Remove(taskbarToClose);
}
// close menu bars
MenuBar barToClose = null;
foreach (MenuBar bar in MenuBarWindows)
{
if (bar.Screen != null && bar.Screen.DeviceName == name)
{
barToClose = bar;
break;
}
}
if (barToClose != null)
{
if (!barToClose.IsClosing)
{
barToClose.Close();
}
MenuBarWindows.Remove(barToClose);
}
// close menu bar shadows
MenuBarShadow barShadowToClose = null;
foreach (MenuBarShadow bar in MenuBarShadowWindows)
{
if (bar.Screen != null && bar.Screen.DeviceName == name)
{
barShadowToClose = bar;
break;
}
}
if (barShadowToClose != null)
{
if (!barShadowToClose.IsClosing)
{
barShadowToClose.Close();
}
MenuBarShadowWindows.Remove(barShadowToClose);
}
}
// update screens of stale windows
foreach (MenuBar bar in MenuBarWindows)
{
if (bar.Screen != null)
{
foreach (System.Windows.Forms.Screen screen in System.Windows.Forms.Screen.AllScreens)
{
if (screen.DeviceName == bar.Screen.DeviceName)
{
bar.Screen = screen;
break;
}
}
}
}
foreach (MenuBarShadow bar in MenuBarShadowWindows)
{
if (bar.Screen != null)
{
foreach (System.Windows.Forms.Screen screen in System.Windows.Forms.Screen.AllScreens)
{
if (screen.DeviceName == bar.Screen.DeviceName)
{
bar.Screen = screen;
break;
}
}
}
}
foreach (Taskbar bar in TaskbarWindows)
{
if (bar.Screen != null)
{
foreach (System.Windows.Forms.Screen screen in System.Windows.Forms.Screen.AllScreens)
{
if (screen.DeviceName == bar.Screen.DeviceName)
{
bar.Screen = screen;
bar.setPosition();
break;
}
}
}
}
}
// open windows on newly added screens
foreach (var screen in System.Windows.Forms.Screen.AllScreens)
{
if ((skipChecks && !screen.Primary) || addedScreens.Contains(screen.DeviceName))
{
if (Settings.EnableMenuBarMultiMon)
{
// menu bars
MenuBar newMenuBar = new MenuBar(screen);
newMenuBar.Show();
MenuBarWindows.Add(newMenuBar);
if (Settings.EnableMenuBarShadow)
{
// menu bar shadows
MenuBarShadow newMenuBarShadow = new MenuBarShadow(newMenuBar, screen);
newMenuBarShadow.Show();
MenuBarShadowWindows.Add(newMenuBarShadow);
}
}
if (Settings.EnableTaskbarMultiMon && Settings.EnableTaskbar)
{
// taskbars
Taskbar newTaskbar = new Taskbar(screen);
newTaskbar.Show();
TaskbarWindows.Add(newTaskbar);
}
}
// Set desktop work area for when Explorer isn't running
if (IsCairoUserShell)
{
AppBarHelper.SetWorkArea(screen);
}
}
IsSettingScreens = false;
}
}
/// <summary>
/// Compares the system screen list to the screens associated with Cairo windows, then creates or destroys windows as necessary.
/// Only affects non-primary screens, as Cairo always opens on at least the primary screen.
/// Runs at startup and when a WM_DISPLAYCHANGE message is received by the main MenuBar window.
/// </summary>
public static void ScreenSetup(bool skipChecks = false)
{
lock (screenSetupLock)
{
CairoLogger.Instance.Debug("Beginning screen setup");
IsSettingScreens = true;
bool shouldSetScreens = true;
List <string> sysScreens = new List <string>();
List <string> openScreens = new List <string>();
List <string> addedScreens = new List <string>();
List <string> removedScreens = new List <string>();
ResetScreenCache();
if (screenState.Length == System.Windows.Forms.Screen.AllScreens.Length)
{
bool same = true;
for (int i = 0; i < screenState.Length; i++)
{
System.Windows.Forms.Screen current = System.Windows.Forms.Screen.AllScreens[i];
if (!(screenState[i].Bounds == current.Bounds && screenState[i].DeviceName == current.DeviceName && screenState[i].Primary == current.Primary && screenState[i].WorkingArea == current.WorkingArea))
{
same = false;
break;
}
}
if (same)
{
CairoLogger.Instance.Debug("Skipping screen setup due to no differences");
shouldSetScreens = false;
}
else
{
screenState = System.Windows.Forms.Screen.AllScreens;
}
}
else
{
screenState = System.Windows.Forms.Screen.AllScreens;
}
if (shouldSetScreens)
{
if (!skipChecks)
{
// enumerate screens
if (Settings.EnableMenuBarMultiMon || !Settings.EnableTaskbar)
{
foreach (MenuBar bar in MenuBarWindows)
{
if (bar.Screen != null)
{
openScreens.Add(bar.Screen.DeviceName);
}
}
}
else if (Settings.EnableTaskbarMultiMon)
{
foreach (Taskbar bar in TaskbarWindows)
{
if (bar.Screen != null)
{
openScreens.Add(bar.Screen.DeviceName);
}
}
}
else
{
return;
}
foreach (var screen in screenState)
{
CairoLogger.Instance.Debug(string.Format("{0} found at {1} with area {2}; primary? {3}", screen.DeviceName, screen.Bounds.ToString(), screen.WorkingArea.ToString(), screen.Primary.ToString()));
sysScreens.Add(screen.DeviceName);
}
// figure out which screens have been added vs removed
foreach (string name in sysScreens)
{
if (!openScreens.Contains(name))
{
addedScreens.Add(name);
}
}
foreach (string name in openScreens)
{
if (!sysScreens.Contains(name))
{
removedScreens.Add(name);
}
}
if (removedScreens.Count == sysScreens.Count)
{
// remove everything?! no way!
return;
}
// close windows associated with removed screens
foreach (string name in removedScreens)
{
CairoLogger.Instance.Debug("Removing windows associated with screen " + name);
// close taskbars
Taskbar taskbarToClose = null;
foreach (Taskbar bar in TaskbarWindows)
{
if (bar.Screen != null && bar.Screen.DeviceName == name)
{
taskbarToClose = bar;
break;
}
}
if (taskbarToClose != null)
{
taskbarToClose.Close();
TaskbarWindows.Remove(taskbarToClose);
}
// close menu bars
MenuBar barToClose = null;
foreach (MenuBar bar in MenuBarWindows)
{
if (bar.Screen != null && bar.Screen.DeviceName == name)
{
CairoLogger.Instance.DebugIf(bar.Screen.Primary, "Closing menu bar on primary display");
barToClose = bar;
break;
}
}
if (barToClose != null)
{
if (!barToClose.IsClosing)
{
barToClose.Close();
}
MenuBarWindows.Remove(barToClose);
}
// close menu bar shadows
MenuBarShadow barShadowToClose = null;
foreach (MenuBarShadow bar in MenuBarShadowWindows)
{
if (bar.Screen != null && bar.Screen.DeviceName == name)
{
barShadowToClose = bar;
break;
}
}
if (barShadowToClose != null)
{
if (!barShadowToClose.IsClosing)
{
barShadowToClose.Close();
}
MenuBarShadowWindows.Remove(barShadowToClose);
}
}
CairoLogger.Instance.Debug("Refreshing screen information for stale windows");
// update screens of stale windows
foreach (MenuBar bar in MenuBarWindows)
{
if (bar.Screen != null)
{
foreach (System.Windows.Forms.Screen screen in screenState)
{
if (screen.DeviceName == bar.Screen.DeviceName)
{
bar.Screen = screen;
break;
}
}
}
}
foreach (MenuBarShadow bar in MenuBarShadowWindows)
{
if (bar.Screen != null)
{
foreach (System.Windows.Forms.Screen screen in screenState)
{
if (screen.DeviceName == bar.Screen.DeviceName)
{
bar.Screen = screen;
break;
}
}
}
}
foreach (Taskbar bar in TaskbarWindows)
{
if (bar.Screen != null)
{
foreach (System.Windows.Forms.Screen screen in screenState)
{
if (screen.DeviceName == bar.Screen.DeviceName)
{
bar.Screen = screen;
bar.setPosition();
break;
}
}
}
}
}
// open windows on newly added screens
foreach (var screen in screenState)
{
if ((skipChecks && !screen.Primary) || addedScreens.Contains(screen.DeviceName))
{
CairoLogger.Instance.Debug("Opening windows on screen " + screen.DeviceName);
if (Settings.EnableMenuBarMultiMon)
{
CairoLogger.Instance.DebugIf(screen.Primary, "Opening MenuBar on new primary display");
// menu bars
MenuBar newMenuBar = new MenuBar(screen);
newMenuBar.Show();
MenuBarWindows.Add(newMenuBar);
if (Settings.EnableMenuBarShadow)
{
// menu bar shadows
MenuBarShadow newMenuBarShadow = new MenuBarShadow(newMenuBar, screen);
newMenuBarShadow.Show();
MenuBarShadowWindows.Add(newMenuBarShadow);
}
}
if (Settings.EnableTaskbarMultiMon && Settings.EnableTaskbar)
{
// taskbars
Taskbar newTaskbar = new Taskbar(screen);
newTaskbar.Show();
TaskbarWindows.Add(newTaskbar);
}
}
// Set desktop work area for when Explorer isn't running
if (IsCairoUserShell)
{
AppBarHelper.SetWorkArea(screen);
}
}
}
IsSettingScreens = false;
CairoLogger.Instance.Debug("Completed screen setup");
}
}