340e84839e
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@2991 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
206 lines
6.4 KiB
C++
206 lines
6.4 KiB
C++
//
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// "$Id: fl_shortcut.cxx,v 1.4.2.9.2.10 2003/05/21 01:50:14 easysw Exp $"
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//
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// Shortcut support routines for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2003 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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// Code to test and parse fltk shortcut numbers.
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//
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// A shortcut is a keysym or'd with shift flags. In the simplest
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// sense a shortcut is matched if the shift state is exactly as
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// given and the key returning that keysym is pressed.
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//
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// To make it easier to match some things it is more complex:
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//
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// Only FL_META, FL_ALT, FL_SHIFT, and FL_CTRL must be "off". A
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// zero in the other shift flags indicates "dont care".
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//
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// It also checks against the first character of Fl::event_text(),
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// and zero for FL_SHIFT means "don't care".
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// This allows punctuation shortcuts like "#" to work (rather than
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// calling it "shift+3")
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#include <FL/Fl.H>
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#include <FL/Fl_Widget.H>
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#include <FL/Fl_Button.H>
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#include <FL/fl_draw.H>
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#include <ctype.h>
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#include "flstring.h"
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#if !defined(WIN32) && !defined(__APPLE__)
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#include <FL/x.H>
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#endif
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int Fl::test_shortcut(int shortcut) {
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if (!shortcut) return 0;
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int shift = Fl::event_state();
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// see if any required shift flags are off:
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if ((shortcut&shift) != (shortcut&0x7fff0000)) return 0;
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// record shift flags that are wrong:
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int mismatch = (shortcut^shift)&0x7fff0000;
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// these three must always be correct:
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if (mismatch&(FL_META|FL_ALT|FL_CTRL)) return 0;
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int key = shortcut & 0xffff;
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// if shift is also correct, check for exactly equal keysyms:
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if (!(mismatch&(FL_SHIFT)) && key == Fl::event_key()) return 1;
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// try matching ascii, ignore shift:
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if (key == event_text()[0]) return 1;
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// kludge so that Ctrl+'_' works (as opposed to Ctrl+'^_'):
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if ((shift&FL_CTRL) && key >= 0x3f && key <= 0x5F
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&& event_text()[0]==(key^0x40)) return 1;
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return 0;
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}
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#if defined(WIN32) || defined(__APPLE__) // if not X
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// This table must be in numeric order by fltk (X) keysym number:
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struct Keyname {int key; const char* name;};
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static Keyname table[] = {
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{' ', "Space"},
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{FL_BackSpace, "Backspace"},
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{FL_Tab, "Tab"},
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{0xff0b/*XK_Clear*/, "Clear"},
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{FL_Enter, "Enter"}, // X says "Enter"
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{FL_Pause, "Pause"},
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{FL_Scroll_Lock, "Scroll_Lock"},
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{FL_Escape, "Escape"},
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{FL_Home, "Home"},
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{FL_Left, "Left"},
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{FL_Up, "Up"},
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{FL_Right, "Right"},
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{FL_Down, "Down"},
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{FL_Page_Up, "Page_Up"}, // X says "Prior"
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{FL_Page_Down,"Page_Down"}, // X says "Next"
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{FL_End, "End"},
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{FL_Print, "Print"},
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{FL_Insert, "Insert"},
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{FL_Menu, "Menu"},
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{FL_Num_Lock, "Num_Lock"},
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{FL_KP_Enter, "KP_Enter"},
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{FL_Shift_L, "Shift_L"},
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{FL_Shift_R, "Shift_R"},
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{FL_Control_L,"Control_L"},
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{FL_Control_R,"Control_R"},
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{FL_Caps_Lock,"Caps_Lock"},
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{FL_Meta_L, "Meta_L"},
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{FL_Meta_R, "Meta_R"},
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{FL_Alt_L, "Alt_L"},
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{FL_Alt_R, "Alt_R"},
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{FL_Delete, "Delete"}
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};
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#endif
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const char * fl_shortcut_label(int shortcut) {
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static char buf[20];
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char *p = buf;
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if (!shortcut) {*p = 0; return buf;}
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#ifdef UNUSED__APPLE__UNUSED
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// \todo Mac : we might want to change the symbols for Mac users - consider drawing Apple Symbols... .
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if (shortcut & FL_SHIFT) {strcpy(p,"shift+"); p += 6;} //: Mac hollow up arrow
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if (shortcut & FL_META) {strcpy(p,"ctrl+"); p += 5;} //: Mac 'cotrol'
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if (shortcut & FL_ALT) {strcpy(p,"option+"); p += 7;} //: Mac 'Option' or fancy switch symbol
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if (shortcut & FL_CTRL) {strcpy(p,"cmd+"); p += 4;} //: Mac Apple or Curlyflour
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#else
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if (shortcut & FL_META) {strcpy(p,"Meta+"); p += 5;}
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if (shortcut & FL_ALT) {strcpy(p,"Alt+"); p += 4;}
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if (shortcut & FL_SHIFT) {strcpy(p,"Shift+"); p += 6;}
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if (shortcut & FL_CTRL) {strcpy(p,"Ctrl+"); p += 5;}
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#endif // __APPLE__
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int key = shortcut & 0xFFFF;
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#if defined(WIN32) || defined(__APPLE__) // if not X
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if (key >= FL_F && key <= FL_F_Last) {
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*p++ = 'F';
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if (key > FL_F+9) *p++ = (key-FL_F)/10+'0';
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*p++ = (key-FL_F)%10 + '0';
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} else {
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// binary search the table for a match:
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int a = 0;
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int b = sizeof(table)/sizeof(*table);
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while (a < b) {
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int c = (a+b)/2;
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if (table[c].key == key) {
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if (p > buf) {strcpy(p,table[c].name); return buf;}
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return table[c].name;
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}
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if (table[c].key < key) a = c+1;
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else b = c;
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}
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if (key >= FL_KP && key <= FL_KP_Last) {
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// mark keypad keys with KP_ prefix
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strcpy(p,"KP_"); p += 3;
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*p++ = uchar(key & 127);
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} else {
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// if none found, use the keystroke as a match:
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*p++ = uchar(key);
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}
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}
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*p = 0;
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return buf;
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#else
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const char* q;
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if (key == FL_Enter || key == '\r') q="Enter"; // don't use Xlib's "Return":
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else if (key > 32 && key < 0x100) q = 0;
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else q = XKeysymToString(key);
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if (!q) {*p++ = uchar(key); *p = 0; return buf;}
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if (p > buf) {strcpy(p,q); return buf;} else return q;
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#endif
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}
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// Emulation of XForms named shortcuts
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#include <stdlib.h>
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int fl_old_shortcut(const char* s) {
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if (!s || !*s) return 0;
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int n = 0;
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if (*s == '#') {n |= FL_ALT; s++;}
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if (*s == '+') {n |= FL_SHIFT; s++;}
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if (*s == '^') {n |= FL_CTRL; s++;}
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if (s[1]) return n | (int)strtol(s,0,0); // allow 0xf00 to get any key
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return n | *s;
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}
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// Tests for &x shortcuts in button labels:
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int Fl_Widget::test_shortcut(const char *l) {
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char c = Fl::event_text()[0];
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if (!c || !l) return 0;
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for (;;) {
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if (!*l) return 0;
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if (*l++ == '&' && *l) {
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if (*l == '&') l++;
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else if (*l == c) return 1;
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else return 0;
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}
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}
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}
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int Fl_Widget::test_shortcut() {
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if (!(flags()&SHORTCUT_LABEL)) return 0;
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return test_shortcut(label());
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}
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//
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// End of "$Id: fl_shortcut.cxx,v 1.4.2.9.2.10 2003/05/21 01:50:14 easysw Exp $".
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//
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