ref: 2c23de27d5006e969106fad672399fafe6464845
dir: /DoConfig/fltk/test/keyboard.cxx/
// // "$Id$" // // // Copyright 1998-2010 by Bill Spitzak and others. // // This library is free software. Distribution and use rights are outlined in // the file "COPYING" which should have been included with this file. If this // file is missing or damaged, see the license at: // // http://www.fltk.org/COPYING.php // // Please report all bugs and problems on the following page: // // http://www.fltk.org/str.php // // // 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? // #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_Iso_Key, "FL_Iso_Key"}, {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); MyWindow *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 = b->argument(); 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 = b->argument(); 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$". //