// Constructor.
public Form()
{
visible = false;
autoScale = true;
topLevel = true;
loaded=false;
borderStyle = FormBorderStyle.Sizable;
mdiChildren = new Form [0];
ownedForms = new Form [0];
opacity = 1.0;
windowFlags = ToolkitWindowFlags.Default;
formStartPosition = FormStartPosition.WindowsDefaultLocation;
windowState = FormWindowState.Normal;
}
// Set the current state of a window decoration flag.
private void SetWindowFlag(ToolkitWindowFlags flag, bool value)
{
// Alter the flag setting.
if(value)
{
windowFlags |= flag;
}
else
{
windowFlags &= ~flag;
}
// Pass the flags to the window manager.
if(toolkitWindow != null)
{
SetWindowFlags(toolkitWindow);
}
}
// Get the current state of a window decoration flag.
private bool GetWindowFlag(ToolkitWindowFlags flag)
{
return ((windowFlags & flag) == flag);
}
// Change the set of supported window decorations and functions.
void IToolkitTopLevelWindow.SetWindowFlags(ToolkitWindowFlags flags)
{
// Set the default hint flags.
MotifDecorations decorations = 0;
MotifFunctions functions = 0;
MotifInputType inputType = MotifInputType.Normal;
OtherHints otherHints = OtherHints.None;
// Alter decorations according to the window flags.
if((flags & ToolkitWindowFlags.Close) != 0)
{
functions |= MotifFunctions.Close;
}
if((flags & ToolkitWindowFlags.Minimize) != 0)
{
decorations |= MotifDecorations.Minimize;
functions |= MotifFunctions.Minimize;
}
if((flags & ToolkitWindowFlags.Caption) != 0)
{
decorations |= MotifDecorations.Title;
}
if((flags & ToolkitWindowFlags.Border) != 0)
{
decorations |= MotifDecorations.Border;
}
if((flags & ToolkitWindowFlags.ResizeHandles) != 0)
{
decorations |= MotifDecorations.ResizeHandles;
}
if((flags & ToolkitWindowFlags.Menu) != 0)
{
decorations |= MotifDecorations.Menu;
}
if((flags & ToolkitWindowFlags.Resize) != 0)
{
decorations |= MotifDecorations.Maximize |
MotifDecorations.ResizeHandles;
functions |= MotifFunctions.Maximize |
MotifFunctions.Resize;
}
if((flags & ToolkitWindowFlags.Move) != 0)
{
functions |= MotifFunctions.Move;
}
if((flags & ToolkitWindowFlags.Modal) != 0)
{
inputType = MotifInputType.ApplicationModal;
}
if((flags & ToolkitWindowFlags.ToolWindow) != 0)
{
otherHints |= OtherHints.ToolWindow;
}
else if((flags & ToolkitWindowFlags.Dialog) != 0)
{
otherHints |= OtherHints.Dialog;
}
if((flags & ToolkitWindowFlags.ShowInTaskbar) == 0)
{
otherHints |= OtherHints.HideFromTaskBar;
}
if((flags & ToolkitWindowFlags.Help) != 0)
{
otherHints |= OtherHints.HelpButton;
}
if((flags & ToolkitWindowFlags.TopMost) != 0)
{
otherHints |= OtherHints.TopMost;
}
// Remove the "transient for" hint if we are changing a
// modal form back into a regular form.
if(InputType == MotifInputType.ApplicationModal &&
inputType == MotifInputType.Normal)
{
RemoveTransientFor();
}
// Send the Motif flags to the window manager.
Decorations = decorations;
Functions = functions;
InputType = inputType;
OtherHints = otherHints;
}
// Change the set of supported window decorations and functions.
void IToolkitTopLevelWindow.SetWindowFlags(ToolkitWindowFlags flags)
{
if (hwnd == IntPtr.Zero)
throw new ApplicationException("DrawingTopLevelWindow.SetWindowsFlags ERROR: Cant SetWindowsFlags. Hwnd not created yet");
Win32.Api.WindowStyle style;
Win32.Api.WindowsExtendedStyle extendedStyle;
toolkit.GetWin32StylesFromFlags( flags, out style, out extendedStyle);
//Now set the style
Win32.Api.SetLastError(0);
if (Win32.Api.SetWindowLongA(hwnd, Win32.Api.SetWindowLongType.GWL_STYLE,style) == 0
&& Win32.Api.GetLastError() != 0)
throw new InvalidOperationException("Unable to change the window style");
Win32.Api.SetLastError(0);
if (Win32.Api.SetWindowLongA(hwnd, Win32.Api.SetWindowLongType.GWL_EXSTYLE,extendedStyle) == 0
&& Win32.Api.GetLastError() != 0)
throw new InvalidOperationException("Unable to change the extended window style");
// Redraw the entire window including the non client portion
Win32.Api.RedrawWindow( hwnd, IntPtr.Zero, IntPtr.Zero, Win32.Api.RedrawWindowFlags.RDW_INVALIDATE | Win32.Api.RedrawWindowFlags.RDW_FRAME );
//Console.WriteLine( "DrawingTopLevelWindow.SetWindowFlags, " + sink );
}
// Get the adjustment values for a top-level window, to convert
// between window bounds and client bounds. Each value should
// be >= 0 and indicate the number of pixels to subtract from the
// windows bounds to get the client bounds.
public void GetWindowAdjust(out int leftAdjust, out int topAdjust,
out int rightAdjust, out int bottomAdjust,
ToolkitWindowFlags flags)
{
// X adds borders separately in the window manager.
// They are not counted in the size of the app window.
// There is no portable way to get the window borders before
// a window is created. These are representive values.
leftAdjust = 2;
topAdjust = 19 + 2;
rightAdjust = 2;
bottomAdjust = 2;
}
// Get the adjustment values for a top-level window, to convert
// between window bounds and client bounds. Each value should
// be >= 0 and indicate the number of pixels to subtract from the
// windows bounds to get the client bounds.
public virtual void GetWindowAdjust
(out int leftAdjust, out int topAdjust,
out int rightAdjust, out int bottomAdjust,
ToolkitWindowFlags flags)
{
leftAdjust = 0;
topAdjust = 0;
rightAdjust = 0;
bottomAdjust = 0;
}
internal void GetWin32StylesFromFlags( ToolkitWindowFlags flags, out Win32.Api.WindowStyle style, out Win32.Api.WindowsExtendedStyle extendedStyle)
{
style = Win32.Api.WindowStyle.WS_POPUP | Win32.Api.WindowStyle.WS_CLIPCHILDREN;
extendedStyle = 0;
//to remove the popup style
Win32.Api.WindowStyle overlapped = ~Win32.Api.WindowStyle.WS_POPUP;
if((flags & ToolkitWindowFlags.Close) > 0)
style |= Win32.Api.WindowStyle.WS_SYSMENU;
if((flags & ToolkitWindowFlags.Minimize) > 0)
style = style & overlapped | Win32.Api.WindowStyle.WS_MINIMIZEBOX;
if((flags & ToolkitWindowFlags.Maximize) > 0)
style = style & overlapped | Win32.Api.WindowStyle.WS_MAXIMIZEBOX;
if((flags & ToolkitWindowFlags.Caption) > 0)
style |= Win32.Api.WindowStyle.WS_CAPTION;
if((flags & ToolkitWindowFlags.Border) > 0)
style |= Win32.Api.WindowStyle.WS_BORDER;
if((flags & ToolkitWindowFlags.ResizeHandles) > 0)
style |= Win32.Api.WindowStyle.WS_THICKFRAME;
if((flags & ToolkitWindowFlags.Menu) > 0)
style = style | Win32.Api.WindowStyle.WS_SYSMENU;
if((flags & ToolkitWindowFlags.Resize) > 0)
style |= Win32.Api.WindowStyle.WS_THICKFRAME;
//We dont handle the Move flag in Win32
//TODO: NOT SURE HERE
if((flags & ToolkitWindowFlags.Modal) > 0)
style |= Win32.Api.WindowStyle.WS_POPUP | Win32.Api.WindowStyle.WS_DLGFRAME;
//TODO: Need a hidden window
//if((flags & ToolkitWindowFlags.ShowInTaskBar)>0)
if((flags & ToolkitWindowFlags.TopMost)>0)
extendedStyle |= Win32.Api.WindowsExtendedStyle.WS_EX_TOPMOST;
if((flags & ToolkitWindowFlags.ToolWindow) > 0)
extendedStyle |= Win32.Api.WindowsExtendedStyle.WS_EX_TOOLWINDOW;
}
// Get the adjustment values for a top-level window, to convert
// between window bounds and client bounds. Each value should
// be >= 0 and indicate the number of pixels to subtract from the
// windows bounds to get the client bounds.
public void GetWindowAdjust(out int leftAdjust, out int topAdjust,
out int rightAdjust, out int bottomAdjust,
ToolkitWindowFlags flags)
{
Win32.Api.WindowStyle style;
Win32.Api.WindowsExtendedStyle extendedStyle;
GetWin32StylesFromFlags( flags, out style, out extendedStyle);
Win32.Api.RECT rect = new System.Drawing.Win32.Api.RECT(0,0,0,0);
Win32.Api.AdjustWindowRectEx( ref rect, style, false, extendedStyle );
leftAdjust = -rect.left;
topAdjust = -rect.top;
rightAdjust = rect.right;
bottomAdjust = rect.bottom;
}
