97234fb3e2
Stuff from work: Removed reference to unused GL/glu.h header file, which is missing on some Linux systems. Fl_Gl_Window has a new method to allow you to get and set the context: void Fl_Gl_Window::context(void*, int destroy = 0) void* Fl_Gl_Window::context() const; Return or set a pointer to the GLContext that this window is using. This is a system-dependent structure, but it is portable to copy the context from one window to another. You can also set it to NULL, which will force FLTK to recreate the context the next time make_current() is called, this is useful for getting around bugs in OpenGL implementations. If destroy_flag is true the context will be destroyed by fltk when the window is destroyed, or when the mode() is changed, or the next time context(x) is called. Some cleanup of Fl_Gl_Choice to move most of the system dependent #ifdefs into Fl_Gl_Choice.cxx. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.0@1413 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
137 lines
4.0 KiB
C++
137 lines
4.0 KiB
C++
//
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// "$Id: Fl_compose.cxx,v 1.1.2.7 2001/03/14 17:20:01 spitzak Exp $"
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//
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// Character compose processing for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2001 by Bill Spitzak and others.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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//
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// Please report all bugs and problems to "fltk-bugs@fltk.org".
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//
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#include <FL/Fl.H>
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static const char* const compose_pairs =
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" ! % # $ y=| & : c a <<~ - r _ * +-2 3 ' u p . , 1 o >>141234? "
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"`A'A^A~A:A*AAE,C`E'E^E:E`I'I^I:I-D~N`O'O^O~O:Ox O/`U'U^U:U'YTHss"
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"`a'a^a~a:a*aae,c`e'e^e:e`i'i^i:i-d~n`o'o^o~o:o-:o/`u'u^u:u'yth:y";
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#ifndef WIN32 // X only
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// X dead-key lookup table. This turns a dead-key keysym into the
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// first of two characters for one of the compose sequences. These
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// keysyms start at 0xFE50.
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// Win32 handles the dead keys before fltk can see them. This is
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// unfortunate, because you don't get the preview effect.
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static char dead_keys[] = {
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'`', // XK_dead_grave
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'\'', // XK_dead_acute
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'^', // XK_dead_circumflex
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'~', // XK_dead_tilde
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'_', // XK_dead_macron
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0, // XK_dead_breve
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'.', // XK_dead_abovedot
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':', // XK_dead_diaeresis
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'*', // XK_dead_abovering
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0, // XK_dead_doubleacute
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'v', // XK_dead_caron
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',' // XK_dead_cedilla
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// 0, // XK_dead_ogonek
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// 0, // XK_dead_iota
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// 0, // XK_dead_voiced_sound
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// 0, // XK_dead_semivoiced_sound
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// 0 // XK_dead_belowdot
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};
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#endif
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int Fl::compose_state;
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int Fl::compose(int& del) {
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del = 0;
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char ascii = e_text[0];
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// Alt+letters are reserved for shortcuts. But alt+foreign letters
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// has to be allowed, because some key layouts require alt to be held
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// down in order to type them...
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if (e_state & (FL_ALT|FL_META) && !(ascii & 128)) return 0;
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if (compose_state == 1) { // after the compose key
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if (ascii == ' ') { // space turns into nbsp
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e_text[0] = char(0xA0);
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compose_state = 0;
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return 1;
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}
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// see if it is either character of any pair:
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for (const char *p = compose_pairs; *p; p += 2)
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if (p[0] == ascii || p[1] == ascii) {
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if (p[1] == ' ') e_text[0] = (p-compose_pairs)/2+0xA0;
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compose_state = ascii;
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return 1;
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}
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if (e_length) { // compose key also "quotes" control characters
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compose_state = 0;
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return 1;
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}
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} else if (compose_state) { // second character of compose
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char c1 = char(compose_state); // retrieve first character
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// now search for the pair in either order:
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for (const char *p = compose_pairs; *p; p += 2) {
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if (p[0] == ascii && p[1] == c1 || p[1] == ascii && p[0] == c1) {
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e_text[0] = (p-compose_pairs)/2+0xA0;
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del = 1; // delete the old character and insert new one
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compose_state = 0;
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return 1;
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}
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}
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}
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int i = e_keysym;
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// See if they type the compose prefix key:
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if (i == FL_Control_R || i == 0xff20/* Multi-Key */) {
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compose_state = 1;
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return 1;
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}
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#ifndef WIN32 // X only
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// See if they typed a dead key. This gets it into the same state as
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// typing prefix+accent:
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if (i >= 0xfe50 && i <= 0xfe5b) {
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ascii = dead_keys[i-0xfe50];
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for (const char *p = compose_pairs; *p; p += 2)
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if (p[0] == ascii) {
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compose_state = ascii;
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return 1;
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}
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compose_state = 0;
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return 1;
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}
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#endif
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// Only insert non-control characters:
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if (e_length && (ascii & ~31 && ascii!=127)) {compose_state = 0; return 1;}
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return 0;
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}
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