lxdream.org :: lxdream/src/gtkui/gtkui.c r622:3554650afb26

tree revision 652:231ca5cbd397 lxdream-render

filename	src/gtkui/gtkui.c
changeset	622:3554650afb26
prev	618:3ade50e8603c
next	630:50addb748df5
author	nkeynes
date	Wed Mar 26 11:56:12 2008 +0000 (16 years ago)
branch	lxdream-render
permissions	-rw-r--r--
last change	Fix perspective correction (at least for those with shader support)

view

     1 /**

     2  * $Id$

     3  *

     4  * Core GTK-based user interface

     5  *

     6  * Copyright (c) 2005 Nathan Keynes.

     7  *

     8  * This program is free software; you can redistribute it and/or modify

     9  * it under the terms of the GNU General Public License as published by

    10  * the Free Software Foundation; either version 2 of the License, or

    11  * (at your option) any later version.

    12  *

    13  * This program is distributed in the hope that it will be useful,

    14  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    16  * GNU General Public License for more details.

    17  */

    19 #include "lxdream.h"

    20 #include <sys/time.h>

    21 #include <time.h>

    22 #include <glib/gi18n.h>

    23 #include <gtk/gtkversion.h>

    24 #include "dreamcast.h"

    25 #include "display.h"

    26 #include "gdrom/gdrom.h"

    27 #include "gtkui/gtkui.h"

    29 /* Base GUI clock is 10ms */

    30 #define GUI_TICK_PERIOD 10000000

    32 void gtk_gui_start( void );

    33 void gtk_gui_stop( void );

    34 void gtk_gui_alloc_resources ( void );

    35 uint32_t gtk_gui_run_slice( uint32_t nanosecs );

    37 struct dreamcast_module gtk_gui_module = { "gui", NULL,

    38 					   gtk_gui_update,

    39 					   gtk_gui_start,

    40 					   gtk_gui_run_slice,

    41 					   gtk_gui_stop,

    42 					   NULL, NULL };

    44 /**

    45  * Single-instance windows (at most one)

    46  */

    47 static main_window_t main_win = NULL;

    48 static debug_window_t debug_win = NULL;

    49 static mmio_window_t mmio_win = NULL;

    51 /**

    52  * UIManager and action helpers

    53  */

    54 static GtkUIManager *global_ui_manager;

    55 static GtkActionGroup *global_action_group;

    57 /**

    58  * Count of running nanoseconds - used to cut back on the GUI runtime

    59  */

    60 static uint32_t gtk_gui_nanos = 0;

    61 static uint32_t gtk_gui_ticks = 0;

    62 static struct timeval gtk_gui_lasttv;

    64 static gboolean gtk_gui_init_ok = FALSE;

    66 #define ENABLE_ACTION(win,name) SET_ACTION_ENABLED(win,name,TRUE)

    67 #define DISABLE_ACTION(win,name) SET_ACTION_ENABLED(win,name,FALSE)

    69 // UI Actions

    70 static const GtkActionEntry ui_actions[] = {

    71     { "FileMenu", NULL, N_("_File") },

    72     { "SettingsMenu", NULL, N_("_Settings") },

    73     { "HelpMenu", NULL, N_("_Help") },

    74     { "LoadBinary", NULL, N_("Load _Binary..."), NULL, N_("Load and run a program binary"), G_CALLBACK(load_binary_action_callback) },

    75     { "Reset", GTK_STOCK_REFRESH, N_("_Reset"), "<control>R", N_("Reset dreamcast"), G_CALLBACK(reset_action_callback) },

    76     { "Pause", GTK_STOCK_MEDIA_PAUSE, N_("_Pause"), NULL, N_("Pause dreamcast"), G_CALLBACK(pause_action_callback) },

    77     { "Run", GTK_STOCK_MEDIA_PLAY, N_("Resume"), NULL, N_("Resume"), G_CALLBACK(resume_action_callback) },

    78     { "LoadState", GTK_STOCK_REVERT_TO_SAVED, N_("_Load state..."), "F4", N_("Load an lxdream save state"), G_CALLBACK(load_state_action_callback) },

    79     { "SaveState", GTK_STOCK_SAVE_AS, N_("_Save state..."), "F3", N_("Create an lxdream save state"), G_CALLBACK(save_state_action_callback) },

    80     { "Exit", GTK_STOCK_QUIT, N_("E_xit"), NULL, N_("Exit lxdream"), G_CALLBACK(exit_action_callback) },

    81     { "GdromSettings", NULL, N_("_GD-Rom...") },

    82     { "GdromUnmount", NULL, N_("_Empty") },

    83     { "GdromMount", GTK_STOCK_CDROM, N_("_Open Image..."), "<control>O", N_("Mount a cdrom disc"), G_CALLBACK(mount_action_callback) },

    84     { "PathSettings", NULL, N_("_Paths..."), NULL, N_("Configure files and paths"), G_CALLBACK(path_settings_callback) },

    85     { "AudioSettings", NULL, N_("_Audio..."), NULL, N_("Configure audio output"), G_CALLBACK(audio_settings_callback) },

    86     { "ControllerSettings", NULL, N_("_Controllers..."), NULL, N_("Configure controllers"), G_CALLBACK(maple_settings_callback) },

    87     { "NetworkSettings", NULL, N_("_Network..."), NULL, N_("Configure network settings"), G_CALLBACK(network_settings_callback) },

    88     { "VideoSettings", NULL, N_("_Video..."), NULL,N_( "Configure video output"), G_CALLBACK(video_settings_callback) },

    89     { "About", GTK_STOCK_ABOUT, N_("_About..."), NULL, N_("About lxdream"), G_CALLBACK(about_action_callback) },

    90     { "DebugMenu", NULL, N_("_Debug") },

    91     { "Debugger", NULL, N_("_Debugger"), NULL, N_("Open debugger window"), G_CALLBACK(debugger_action_callback) },

    92     { "DebugMem", NULL, N_("View _Memory"), NULL, N_("View memory dump"), G_CALLBACK(debug_memory_action_callback) },

    93     { "DebugMmio", NULL, N_("View IO _Registers"), NULL, N_("View MMIO Registers"), G_CALLBACK(debug_mmio_action_callback) },

    94     { "SaveScene", NULL, N_("_Save Scene"), NULL, N_("Save next rendered scene"), G_CALLBACK(save_scene_action_callback) },

    95     { "SingleStep", GTK_STOCK_REDO, N_("_Single Step"), NULL, N_("Single step"), G_CALLBACK(debug_step_action_callback) },

    96     { "RunTo", GTK_STOCK_GOTO_LAST, N_("Run _To"), NULL, N_("Run to"), G_CALLBACK( debug_runto_action_callback) },

    97     { "SetBreakpoint", GTK_STOCK_CLOSE, N_("_Breakpoint"), NULL, N_("Toggle breakpoint"), G_CALLBACK( debug_breakpoint_action_callback) }

    98 };

    99 static const GtkToggleActionEntry ui_toggle_actions[] = {

   100     { "FullScreen", NULL, "_Full Screen", "<alt>Return", "Toggle full screen video", G_CALLBACK(fullscreen_toggle_callback), 0 },

   101 };

   103 // Menus and toolbars

   104 static const char *ui_description =

   105     "<ui>"

   106     " <menubar name='MainMenu'>"

   107     "  <menu action='FileMenu'>"

   108     "   <menuitem action='LoadBinary'/>"

   109     "   <menuitem action='GdromSettings'/>"

   110     "   <separator/>"

   111     "   <menuitem action='Reset'/>"

   112     "   <menuitem action='Pause'/>"

   113     "   <menuitem action='Run'/>"

   114     "   <menuitem action='Debugger'/>"

   115     "   <separator/>"

   116     "   <menuitem action='LoadState'/>"

   117     "   <menuitem action='SaveState'/>"

   118     "   <separator/>"

   119     "   <menuitem action='Exit'/>"

   120     "  </menu>"

   121     "  <menu action='SettingsMenu'>"

   122     "   <menuitem action='PathSettings'/>"

   123     "   <menuitem action='AudioSettings'/>"

   124     "   <menuitem action='ControllerSettings'/>"

   125     "   <menuitem action='NetworkSettings'/>"

   126     "   <menuitem action='VideoSettings'/>"

   127     "   <separator/>"

   128     "   <menuitem action='FullScreen'/>"

   129     "  </menu>"

   130     "  <menu action='HelpMenu'>"

   131     "   <menuitem action='About'/>"

   132     "  </menu>"

   133     " </menubar>"

   134     " <toolbar name='MainToolbar'>"

   135     "  <toolitem action='GdromMount'/>"

   136     "  <toolitem action='Reset'/>"

   137     "  <toolitem action='Pause'/>"

   138     "  <toolitem action='Run'/>"

   139     "  <separator/>"

   140     "  <toolitem action='LoadState'/>"

   141     "  <toolitem action='SaveState'/>"

   142     " </toolbar>"

   143     " <menubar name='DebugMenu'>"

   144     "  <menu action='FileMenu'>"

   145     "   <menuitem action='GdromSettings'/>"

   146     "   <separator/>"

   147     "   <menuitem action='Reset'/>"

   148     "   <separator/>"

   149     "   <menuitem action='LoadState'/>"

   150     "   <menuitem action='SaveState'/>"

   151     "   <separator/>"

   152     "   <menuitem action='Exit'/>"

   153     "  </menu>"

   154     "  <menu action='DebugMenu'>"

   155     "   <menuitem action='DebugMem'/>"

   156     "   <menuitem action='DebugMmio'/>"

   157     "   <menuitem action='SaveScene'/>"

   158     "   <separator/>"

   159     "   <menuitem action='SetBreakpoint'/>"

   160     "   <menuitem action='Pause'/>"

   161     "   <menuitem action='SingleStep'/>"

   162     "   <menuitem action='RunTo'/>"

   163     "   <menuitem action='Run'/>"

   164     "  </menu>"

   165     "  <menu action='SettingsMenu'>"

   166     "   <menuitem action='PathSettings'/>"

   167     "   <menuitem action='AudioSettings'/>"

   168     "   <menuitem action='ControllerSettings'/>"

   169     "   <menuitem action='NetworkSettings'/>"

   170     "   <menuitem action='VideoSettings'/>"

   171     "   <separator/>"

   172     "   <menuitem action='FullScreen'/>"

   173     "  </menu>"

   174     "  <menu action='HelpMenu'>"

   175     "   <menuitem action='About'/>"

   176     "  </menu>"

   177     " </menubar>"

   178     " <toolbar name='DebugToolbar'>"

   179     "  <toolitem action='GdromMount'/>"

   180     "  <toolitem action='Reset'/>"

   181     "  <toolitem action='Pause'/>"

   182     "  <separator/>"

   183     "  <toolitem action='SingleStep'/>"

   184     "  <toolitem action='RunTo'/>"

   185     "  <toolitem action='Run'/>"

   186     "  <toolitem action='SetBreakpoint'/>"

   187     "  <separator/>"

   188     "  <toolitem action='LoadState'/>"

   189     "  <toolitem action='SaveState'/>"

   190     " </toolbar>"

   191     "</ui>";

   193 gboolean gui_parse_cmdline( int *argc, char **argv[] )

   194 {

   195     gtk_gui_init_ok = gtk_init_check( argc, argv );

   196     return gtk_gui_init_ok;

   197 }

   199 gboolean gui_init( gboolean withDebug )

   200 {

   201     if( gtk_gui_init_ok ) {

   202 	GError *error = NULL;

   203 	dreamcast_register_module( &gtk_gui_module );

   204 	gtk_gui_alloc_resources();

   206 	global_action_group = gtk_action_group_new("MenuActions");

   207 	gtk_action_group_set_translation_domain( global_action_group, NULL );

   208 	gtk_action_group_add_actions( global_action_group, ui_actions, G_N_ELEMENTS(ui_actions), NULL );

   209 	gtk_action_group_add_toggle_actions( global_action_group, ui_toggle_actions, G_N_ELEMENTS(ui_toggle_actions), NULL );

   210 	gtk_gui_enable_action("AudioSettings", FALSE);

   211 	gtk_gui_enable_action("NetworkSettings", FALSE);

   212 	gtk_gui_enable_action("VideoSettings", FALSE);

   214 	global_ui_manager = gtk_ui_manager_new();

   215 	gtk_ui_manager_set_add_tearoffs(global_ui_manager, TRUE);

   216 	gtk_ui_manager_insert_action_group( global_ui_manager, global_action_group, 0 );

   218 	if (!gtk_ui_manager_add_ui_from_string (global_ui_manager, ui_description, -1, &error)) {

   219 	    g_message ("building menus failed: %s", error->message);

   220 	    g_error_free (error);

   221 	    exit(1);

   222 	}

   223 	GtkAccelGroup *accel_group = gtk_ui_manager_get_accel_group (global_ui_manager);

   224 	GtkWidget *menubar = gtk_ui_manager_get_widget(global_ui_manager, "/MainMenu");

   225 	GtkWidget *toolbar = gtk_ui_manager_get_widget(global_ui_manager, "/MainToolbar");

   227 	GtkWidget *gdrommenuitem = gtk_ui_manager_get_widget(global_ui_manager, "/MainMenu/FileMenu/GdromSettings");

   228 	gdrom_menu_init();

   229 	GtkWidget *gdrommenu = gdrom_menu_new();

   230 	gtk_menu_item_set_submenu( GTK_MENU_ITEM(gdrommenuitem), gdrommenu );

   231 	main_win = main_window_new( APP_NAME " " APP_VERSION, menubar, toolbar, accel_group  );

   232 	main_window_set_use_grab(main_win, TRUE);

   233 	if( withDebug ) {

   234 	    gtk_gui_show_debugger();

   235 	}

   237 	return TRUE;

   238     } else {

   239 	return FALSE;

   240     }

   241 }

   243 void gui_main_loop(void)

   244 {

   245     gtk_gui_update();

   246     gtk_main();

   247 }

   249 void gui_update_state(void)

   250 {

   251     gtk_gui_update();

   252 }

   254 gboolean gui_error_dialog( const char *msg, ... )

   255 {

   256     if( main_win != NULL ) {

   257 	va_list args;

   258 	GtkWidget *dialog =

   259 	    gtk_message_dialog_new( main_window_get_frame(main_win), GTK_DIALOG_MODAL|GTK_DIALOG_DESTROY_WITH_PARENT,

   260 				    GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, NULL );

   261 	va_start(args, msg);

   262 	gchar *markup = g_markup_vprintf_escaped( msg, args );

   263 	va_end( args );

   264 	gtk_message_dialog_set_markup( GTK_MESSAGE_DIALOG(dialog), markup );

   265 	g_free(markup);

   266 	gtk_dialog_run(GTK_DIALOG(dialog));

   267 	gtk_widget_destroy(dialog);

   268 	return TRUE;

   269     }

   270     return FALSE;

   271 }

   273 void gui_update_io_activity( io_activity_type io, gboolean active )

   274 {

   276 }

   278 void gtk_gui_show_debugger()

   279 {

   280     if( debug_win ) {

   281 	debug_window_show(debug_win, TRUE);

   282     } else {

   283 	GtkAccelGroup *accel_group = gtk_ui_manager_get_accel_group (global_ui_manager);

   284 	GtkWidget *menubar = gtk_ui_manager_get_widget(global_ui_manager, "/DebugMenu");

   285 	GtkWidget *toolbar = gtk_ui_manager_get_widget(global_ui_manager, "/DebugToolbar");

   286 	GtkWidget *gdrommenuitem = gtk_ui_manager_get_widget(global_ui_manager, "/DebugMenu/FileMenu/GdromSettings");

   287 	GtkWidget *gdrommenu = gdrom_menu_new();

   288 	gtk_menu_item_set_submenu( GTK_MENU_ITEM(gdrommenuitem), gdrommenu );

   289 	gchar *title = g_strdup_printf( APP_NAME " " APP_VERSION " :: %s", _("Debugger"));

   290 	debug_win = debug_window_new( title, menubar, toolbar, accel_group  );

   291 	g_free(title);

   292     }

   293 }

   295 void gtk_gui_show_mmio()

   296 {

   297     if( mmio_win ) {

   298 	mmio_window_show(mmio_win, TRUE);

   299     } else {

   300 	gchar *title = g_strdup_printf( APP_NAME " " APP_VERSION " :: %s", _("MMIO Registers"));

   301 	mmio_win = mmio_window_new( title );

   302 	g_free(title);

   303     }

   304 }

   307 main_window_t gtk_gui_get_main()

   308 {

   309     return main_win;

   310 }

   312 debug_window_t gtk_gui_get_debugger()

   313 {

   314     return debug_win;

   315 }

   317 mmio_window_t gtk_gui_get_mmio()

   318 {

   319     return mmio_win;

   320 }

   322 GtkWidget *gtk_gui_get_renderarea()

   323 {

   324     if( main_win == NULL ) {

   325 	return NULL;

   326     } else {

   327 	return main_window_get_renderarea(main_win);

   328     }

   329 }

   331 /**

   332  * Hook called when DC starts running. Just disables the run/step buttons

   333  * and enables the stop button.

   334  */

   335 void gtk_gui_start( void )

   336 {

   337     main_window_set_running( main_win, TRUE );

   338     if( debug_win != NULL ) {

   339 	debug_window_set_running( debug_win, TRUE );

   340     }

   341     gtk_gui_nanos = 0;

   342     gettimeofday(&gtk_gui_lasttv,NULL);

   343 }

   345 /**

   346  * Hook called when DC stops running. Enables the run/step buttons

   347  * and disables the stop button.

   348  */

   349 void gtk_gui_stop( void )

   350 {

   351     main_window_set_running( main_win, FALSE );

   352     gtk_gui_update();

   353 }

   355 void gtk_gui_update( void )

   356 {

   357     if( global_action_group ) {

   358 	gtk_gui_enable_action("Run", dreamcast_can_run() && !dreamcast_is_running() );

   359 	gtk_gui_enable_action("Pause", dreamcast_is_running() );

   360     }

   361     if( debug_win ) {

   362 	debug_window_set_running( debug_win, FALSE );

   363 	debug_window_update(debug_win);

   364     }

   365     if( mmio_win ) {

   366 	mmio_window_update(mmio_win);

   367     }

   368     dump_window_update_all();

   369 }

   371 /**

   372  * Module run-slice. Run the event loop 100 times/second (doesn't really need to be

   373  * any more often than this), and update the speed display 10 times/second.

   374  *

   375  * Also detect if we're running too fast here and yield for a bit

   376  */

   377 uint32_t gtk_gui_run_slice( uint32_t nanosecs )

   378 {

   379     gtk_gui_nanos += nanosecs;

   380     if( gtk_gui_nanos > GUI_TICK_PERIOD ) { /* 10 ms */

   381 	gtk_gui_nanos -= GUI_TICK_PERIOD;

   382 	gtk_gui_ticks ++;

   383 	uint32_t current_period = gtk_gui_ticks * GUI_TICK_PERIOD;

   385 	// Run the event loop

   386 	while( gtk_events_pending() )

   387 	    gtk_main_iteration();

   389 	struct timeval tv;

   390 	gettimeofday(&tv,NULL);

   391 	uint32_t ns = ((tv.tv_sec - gtk_gui_lasttv.tv_sec) * 1000000000) +

   392 	    (tv.tv_usec - gtk_gui_lasttv.tv_usec)*1000;

   393 	if( (ns * 1.05) < current_period ) {

   394 	    // We've gotten ahead - sleep for a little bit

   395 	    struct timespec tv;

   396 	    tv.tv_sec = 0;

   397 	    tv.tv_nsec = current_period - ns;

   398 	    nanosleep(&tv, &tv);

   399 	}

   401 	/* Update the display every 10 ticks (ie 10 times a second) and

   402 	 * save the current tv value */

   403 	if( gtk_gui_ticks > 10 ) {

   404 	    gtk_gui_ticks -= 10;

   406 	    double speed = (float)( (double)current_period * 100.0 / ns );

   407 	    gtk_gui_lasttv.tv_sec = tv.tv_sec;

   408 	    gtk_gui_lasttv.tv_usec = tv.tv_usec;

   409 	    main_window_set_speed( main_win, speed );

   410 	}

   411     }

   412     return nanosecs;

   413 }

   416 PangoFontDescription *gui_fixed_font;

   417 GdkColor gui_colour_normal, gui_colour_changed, gui_colour_error;

   418 GdkColor gui_colour_warn, gui_colour_pc, gui_colour_debug;

   419 GdkColor gui_colour_trace, gui_colour_break, gui_colour_temp_break;

   420 GdkColor gui_colour_white;

   422 void gtk_gui_alloc_resources() {

   423     GdkColormap *map;

   425     gui_colour_normal.red = gui_colour_normal.green = gui_colour_normal.blue = 0;

   426     gui_colour_changed.red = gui_colour_changed.green = 64*256;

   427     gui_colour_changed.blue = 154*256;

   428     gui_colour_error.red = 65535;

   429     gui_colour_error.green = gui_colour_error.blue = 64*256;

   430     gui_colour_pc.red = 32*256;

   431     gui_colour_pc.green = 170*256;

   432     gui_colour_pc.blue = 52*256;

   433     gui_colour_warn = gui_colour_changed;

   434     gui_colour_trace.red = 156*256;

   435     gui_colour_trace.green = 78*256;

   436     gui_colour_trace.blue = 201*256;

   437     gui_colour_debug = gui_colour_pc;

   438     gui_colour_break.red = 65535;

   439     gui_colour_break.green = gui_colour_break.blue = 192*256;

   440     gui_colour_temp_break.red = gui_colour_temp_break.green = 128*256;

   441     gui_colour_temp_break.blue = 32*256;

   442     gui_colour_white.red = gui_colour_white.green = gui_colour_white.blue = 65535;

   444     map = gdk_colormap_new(gdk_visual_get_best(), TRUE);

   445     gdk_colormap_alloc_color(map, &gui_colour_normal, TRUE, TRUE);

   446     gdk_colormap_alloc_color(map, &gui_colour_changed, TRUE, TRUE);

   447     gdk_colormap_alloc_color(map, &gui_colour_error, TRUE, TRUE);

   448     gdk_colormap_alloc_color(map, &gui_colour_warn, TRUE, TRUE);

   449     gdk_colormap_alloc_color(map, &gui_colour_pc, TRUE, TRUE);

   450     gdk_colormap_alloc_color(map, &gui_colour_debug, TRUE, TRUE);

   451     gdk_colormap_alloc_color(map, &gui_colour_trace, TRUE, TRUE);

   452     gdk_colormap_alloc_color(map, &gui_colour_break, TRUE, TRUE);

   453     gdk_colormap_alloc_color(map, &gui_colour_temp_break, TRUE, TRUE);

   454     gdk_colormap_alloc_color(map, &gui_colour_white, TRUE, TRUE);

   455     gui_fixed_font = pango_font_description_from_string("Courier 10");

   456 }

   458 gint gtk_gui_run_property_dialog( const gchar *title, GtkWidget *panel, gtk_dialog_done_fn fn )

   459 {

   460     GtkWidget *dialog =

   461 	gtk_dialog_new_with_buttons(title, main_window_get_frame(main_win),

   462 				    GTK_DIALOG_MODAL|GTK_DIALOG_DESTROY_WITH_PARENT,

   463 				    GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,

   464 				    GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,

   465 				    NULL);

   466     gint result;

   467     gtk_widget_show_all(panel);

   468     gtk_container_add( GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), panel );

   469     result = gtk_dialog_run( GTK_DIALOG(dialog) );

   470     if( fn != NULL ) {

   471 	fn(panel, result == GTK_RESPONSE_ACCEPT);

   472     }

   473     gtk_widget_destroy( dialog );

   474     return result;

   475 }

   477 void gtk_gui_enable_action( const gchar *action, gboolean enable )

   478 {

   479     gtk_action_set_sensitive( gtk_action_group_get_action( global_action_group, action), enable);

   480 }

   482 static void delete_frame_buffer( guchar *pixels, gpointer buffer )

   483 {

   484     if( buffer != NULL ) {

   485 	g_free(buffer);

   486     }

   487 }

   489 GdkPixbuf *gdk_pixbuf_new_from_frame_buffer( frame_buffer_t buffer )

   490 {

   491     return gdk_pixbuf_new_from_data( (unsigned char *)buffer->data,

   492 				     GDK_COLORSPACE_RGB,

   493 				     (buffer->colour_format == COLFMT_BGRA8888),

   494 				     8,

   495 				     buffer->width,

   496 				     buffer->height,

   497 				     buffer->rowstride,

   498 				     delete_frame_buffer,

   499 				     buffer );

   500 }

   502 /**

   503  * Extract the keyval of the key event if no modifier keys were pressed -

   504  * in other words get the keyval of the key by itself. The other way around

   505  * would be to use the hardware keysyms directly rather than the keyvals,

   506  * but the mapping looks to be messier.

   507  */

   508 uint16_t gtk_get_unmodified_keyval( GdkEventKey *event )

   509 {

   510     GdkKeymap *keymap = gdk_keymap_get_default();

   511     guint keyval;

   513     gdk_keymap_translate_keyboard_state( keymap, event->hardware_keycode, 0, 0, &keyval,

   514 					 NULL, NULL, NULL );

   515     return keyval;

   516 }

   518 /************* X11-specificness **********/

   519 #include <gdk/gdkx.h>

   521 guint gdk_keycode_to_modifier( GdkDisplay *display, guint keycode )

   522 {

   523   int i;

   524   int result = 0;

   525   Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);

   526   XModifierKeymap *keymap = XGetModifierMapping( xdisplay );

   527   for( i=0; i<8*keymap->max_keypermod; i++ ) {

   528     if( keymap->modifiermap[i] == keycode ) {

   529       result = 1 << (i/keymap->max_keypermod);

   530       break;

   531     }

   532   }

   533   XFreeModifiermap(keymap);

   534   return result;

   535 }

   537 #if !(GTK_CHECK_VERSION(2,8,0))

   538 /* gdk_display_warp_pointer was added in GTK 2.8. If we're using an earlier

   539  * version, include the code here. (Can't just set the dependency on 2.8 as

   540  * it still hasn't been ported to OSX...) Original copyright statement belo

   541  */

   543 /* GDK - The GIMP Drawing Kit

   544  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald

   545  *

   546  * This library is free software; you can redistribute it and/or

   547  * modify it under the terms of the GNU Lesser General Public

   548  * License as published by the Free Software Foundation; either

   549  * version 2 of the License, or (at your option) any later version.

   550  *

   551  * This library is distributed in the hope that it will be useful,

   552  * but WITHOUT ANY WARRANTY; without even the implied warranty of

   553  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   554  * Lesser General Public License for more details.

   555  *

   556  * You should have received a copy of the GNU Lesser General Public

   557  * License along with this library; if not, write to the

   558  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

   559  * Boston, MA 02111-1307, USA.

   560  */

   562 /*

   563  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS

   564  * file for a list of people on the GTK+ Team.  See the ChangeLog

   565  * files for a list of changes.  These files are distributed with

   566  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.

   567  */

   568 void gdk_display_warp_pointer (GdkDisplay *display,

   569                           GdkScreen  *screen,

   570                           gint        x,

   571                           gint        y)

   572 {

   573   Display *xdisplay;

   574   Window dest;

   576   xdisplay = GDK_DISPLAY_XDISPLAY (display);

   577   dest = GDK_WINDOW_XWINDOW (gdk_screen_get_root_window (screen));

   579   XWarpPointer (xdisplay, None, dest, 0, 0, 0, 0, x, y);

   580 }

   582 #endif