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//
// "$Id: keyboard.cxx 5702 2007-02-21 15:49:38Z matt $"
//
// Keyboard/event test program for the Fast Light Tool Kit (FLTK).
//
// Continuously display FLTK's event state.
//
// Known bugs:
//
// X insists on reporting the state *before* the shift key was
// pressed, rather than after, on shift key events. I fixed this for
// the mouse buttons, but it did not seem worth it for shift.
//
// X servers do not agree about any shift flags after except shift, ctrl,
// lock, and alt. They may also not agree about the symbols for the extra
// keys Micro$oft put on the keyboard.
//
// On IRIX the backslash key does not work. A bug in XKeysymToKeycode?
//
// Copyright 1998-2005 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 on the following page:
//
// http://www.fltk.org/str.php
//
#include "keyboard_ui.h"
#include <string.h>
// these are used to identify which buttons are which:
void key_cb(Fl_Button*, void*) {}
void shift_cb(Fl_Button*, void*) {}
void wheel_cb(Fl_Dial*, void*) {}
// this is used to stop Esc from exiting the program:
int handle(int e) {
return (e == FL_SHORTCUT); // eat all keystrokes
}
int MyWindow::handle(int msg) {
if (msg==FL_MOUSEWHEEL)
{
roller_x->value( roller_x->value() + Fl::e_dx * roller_x->step() );
roller_y->value( roller_y->value() + Fl::e_dy * roller_y->step() );
return 1;
}
return 0;
}
struct keycode_table{int n; const char* text;} table[] = {
{FL_Escape, "FL_Escape"},
{FL_BackSpace, "FL_BackSpace"},
{FL_Tab, "FL_Tab"},
{FL_Enter, "FL_Enter"},
{FL_Print, "FL_Print"},
{FL_Scroll_Lock, "FL_Scroll_Lock"},
{FL_Pause, "FL_Pause"},
{FL_Insert, "FL_Insert"},
{FL_Home, "FL_Home"},
{FL_Page_Up, "FL_Page_Up"},
{FL_Delete, "FL_Delete"},
{FL_End, "FL_End"},
{FL_Page_Down, "FL_Page_Down"},
{FL_Left, "FL_Left"},
{FL_Up, "FL_Up"},
{FL_Right, "FL_Right"},
{FL_Down, "FL_Down"},
{FL_Shift_L, "FL_Shift_L"},
{FL_Shift_R, "FL_Shift_R"},
{FL_Control_L, "FL_Control_L"},
{FL_Control_R, "FL_Control_R"},
{FL_Caps_Lock, "FL_Caps_Lock"},
{FL_Alt_L, "FL_Alt_L"},
{FL_Alt_R, "FL_Alt_R"},
{FL_Meta_L, "FL_Meta_L"},
{FL_Meta_R, "FL_Meta_R"},
{FL_Menu, "FL_Menu"},
{FL_Help, "FL_Help"},
{FL_Num_Lock, "FL_Num_Lock"},
{FL_KP_Enter, "FL_KP_Enter"}
};
int main(int argc, char** argv) {
Fl::add_handler(handle);
Fl_Window *window = make_window();
window->show(argc,argv);
while (Fl::wait()) {
const char *str;
// update all the buttons with the current key and shift state:
for (int i = 0; i < window->children(); i++) {
Fl_Widget* b = window->child(i);
if (b->callback() == (Fl_Callback*)key_cb) {
int i = (long)b->user_data();
if (!i) i = b->label()[0];
Fl_Button *btn = ((Fl_Button*)b);
int state = Fl::event_key(i);
if (btn->value()!=state)
btn->value(state);
} else if (b->callback() == (Fl_Callback*)shift_cb) {
int i = (long)b->user_data();
Fl_Button *btn = ((Fl_Button*)b);
int state = Fl::event_state(i);
if (btn->value()!=state)
btn->value(state);
}
}
// figure out the keyname:
char buffer[100];
const char *keyname = buffer;
int k = Fl::event_key();
if (!k)
keyname = "0";
else if (k < 256) {
sprintf(buffer, "'%c'", k);
} else if (k > FL_F && k <= FL_F_Last) {
sprintf(buffer, "FL_F+%d", k - FL_F);
} else if (k >= FL_KP && k <= FL_KP_Last) {
sprintf(buffer, "FL_KP+'%c'", k-FL_KP);
} else if (k >= FL_Button && k <= FL_Button+7) {
sprintf(buffer, "FL_Button+%d", k-FL_Button);
} else {
sprintf(buffer, "0x%04x", k);
for (int i = 0; i < int(sizeof(table)/sizeof(*table)); i++)
if (table[i].n == k) {keyname = table[i].text; break;}
}
if (strcmp(key_output->value(), keyname))
key_output->value(keyname);
str = Fl::event_text();
if (strcmp(text_output->value(), str))
text_output->value(str);
}
return 0;
}
//
// End of "$Id: keyboard.cxx 5702 2007-02-21 15:49:38Z matt $".
//
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