fltk/src/Fl_Menu_Window.cxx
Bill Spitzak 8009fef12c Put Fl::grab() into it's own source file. Rewritten as suggested so that
it takes a window pointer, and grab(0) releases.  You can now call grab
repeatedly with the same or different values without it failing.  The old
Fl::grab() and Fl::release() are emulated in inline functions in Fl.H

Added Fl_Menu_::copy(Fl_Menu_Item*), which will be useful for fluid, although
that use is nyi.

Fixes and cleanup to the code for Fl_Menu_::add(...).


git-svn-id: file:///fltk/svn/fltk/trunk@268 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
1999-02-03 08:43:35 +00:00

102 lines
2.9 KiB
C++

//
// "$Id: Fl_Menu_Window.cxx,v 1.8 1999/02/03 08:43:33 bill Exp $"
//
// Menu window code for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-1999 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems to "fltk-bugs@easysw.com".
//
// This is the window type used by Fl_Menu to make the pop-ups.
// It draws in the overlay planes if possible.
// Also here is the implementation of the mouse & keyboard grab,
// which are used so that clicks outside the program's windows
// can be used to dismiss the menus.
#include <config.h>
#include <FL/Fl.H>
#include <FL/x.H>
#include <FL/fl_draw.H>
#include <FL/Fl_Menu_Window.H>
// WIN32 note: HAVE_OVERLAY is false
#if HAVE_OVERLAY
extern XVisualInfo *fl_find_overlay_visual();
extern XVisualInfo *fl_overlay_visual;
extern Colormap fl_overlay_colormap;
extern unsigned long fl_transparent_pixel;
static GC gc; // the GC used by all X windows
extern uchar fl_overlay; // changes how fl_color(x) works
#endif
#include <stdio.h>
void Fl_Menu_Window::show() {
#if HAVE_OVERLAY
if (!shown() && overlay() && fl_find_overlay_visual()) {
XInstallColormap(fl_display, fl_overlay_colormap);
fl_background_pixel = int(fl_transparent_pixel);
Fl_X::make_xid(this, fl_overlay_visual, fl_overlay_colormap);
fl_background_pixel = -1;
} else
#endif
Fl_Single_Window::show();
}
void Fl_Menu_Window::flush() {
#if HAVE_OVERLAY
if (!fl_overlay_visual || !overlay()) {Fl_Single_Window::flush(); return;}
Fl_X *i = Fl_X::i(this);
fl_window = i->xid;
if (!gc) gc = XCreateGC(fl_display, i->xid, 0, 0);
fl_gc = gc;
fl_overlay = 1;
fl_clip_region(i->region); i->region = 0;
draw();
fl_overlay = 0;
#else
Fl_Single_Window::flush();
#endif
}
void Fl_Menu_Window::erase() {
#if HAVE_OVERLAY
if (!gc || !shown()) return;
//XSetForeground(fl_display, gc, 0);
//XFillRectangle(fl_display, fl_xid(this), gc, 0, 0, w(), h());
XClearWindow(fl_display, fl_xid(this));
#endif
}
// Fix the colormap flashing on Maximum Impact Graphics by erasing the
// menu before unmapping it:
void Fl_Menu_Window::hide() {
erase();
Fl_Single_Window::hide();
}
Fl_Menu_Window::~Fl_Menu_Window() {
hide();
}
//
// End of "$Id: Fl_Menu_Window.cxx,v 1.8 1999/02/03 08:43:33 bill Exp $".
//