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lxdream.org :: lxdream/src/gtkui/main_win.c
lxdream 0.9.1
released Jun 29
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filename src/gtkui/main_win.c
changeset 658:f5926310bfbe
prev635:76c63aac3590
next659:6b1dff1575b3
author nkeynes
date Wed Apr 16 12:43:52 2008 +0000 (14 years ago)
permissions -rw-r--r--
last change Start removing X11isms from gtkui into drivers
Overhaul the configure rules for figuring out the video driver
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     1 /**
     2  * $Id$
     3  *
     4  * Define the main (emu) GTK window, along with its menubars,
     5  * toolbars, etc.
     6  *
     7  * Copyright (c) 2005 Nathan Keynes.
     8  *
     9  * This program is free software; you can redistribute it and/or modify
    10  * it under the terms of the GNU General Public License as published by
    11  * the Free Software Foundation; either version 2 of the License, or
    12  * (at your option) any later version.
    13  *
    14  * This program is distributed in the hope that it will be useful,
    15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    17  * GNU General Public License for more details.
    18  */
    20 #include <assert.h>
    21 #include <sys/types.h>
    22 #include <sys/stat.h>
    23 #include <unistd.h>
    24 #include <string.h>
    25 #include <stdio.h>
    26 #include <stdlib.h>
    28 #include <gtk/gtk.h>
    29 #include <gdk/gdk.h>
    30 #include <gdk/gdkkeysyms.h>
    31 #include <X11/Xutil.h>
    33 #include "lxdream.h"
    34 #include "gtkui/gtkui.h"
    36 #ifdef HAVE_GLX
    37 #include <gdk/gdkx.h>
    38 #include "drivers/video_glx.h"
    39 #endif
    42 struct main_window_info {
    43     GtkWidget *window;
    44     GtkWidget *video;
    45     GtkWidget *menubar;
    46     GtkWidget *toolbar;
    47     GtkWidget *statusbar;
    48     GtkActionGroup *actions;
    49     gboolean use_grab;
    50     gboolean is_grabbed;
    51     int32_t mouse_x, mouse_y;
    52 };
    55 /******************** Video window **************************/
    57 /**
    58  * Adjust the mouse pointer so that it appears in the center of the video
    59  * window. Mainly used for when we have the mouse grab
    60  */
    61 void video_window_center_pointer( main_window_t win )
    62 {
    63     GdkDisplay *display = gtk_widget_get_display(win->video);
    64     GdkScreen *screen = gtk_widget_get_screen(win->video);
    65     int x,y;
    66     int width, height;
    68     gdk_window_get_origin(win->video->window, &x, &y);
    69     gdk_drawable_get_size(GDK_DRAWABLE(win->video->window), &width, &height);
    70     x += width / 2;
    71     y += height / 2;
    73     gdk_display_warp_pointer( display, screen, x, y );
    74     win->mouse_x = width/2;
    75     win->mouse_y = height/2;
    76 }
    78 /**
    79  * Grab the keyboard and mouse for the display. The mouse cursor is hidden and
    80  * moved to the centre of the window.
    81  *
    82  * @param win The window receiving the grab
    83  * @return TRUE if the grab was successful, FALSE on failure.
    84  */
    85 gboolean video_window_grab_display( main_window_t win )
    86 {
    87     GdkWindow *gdkwin = win->video->window;
    88     GdkColor color = { 0,0,0,0 };
    89     char bytes[32]; /* 16 * 16 / 8 */
    90     memset(bytes, 0, 32);
    91     GdkPixmap *pixmap = gdk_bitmap_create_from_data(NULL, bytes, 16, 16);
    92     GdkCursor *cursor = gdk_cursor_new_from_pixmap(pixmap, pixmap, &color, &color, 16, 16);
    93     gdk_pixmap_unref(pixmap);
    95     gboolean success =
    96 	gdk_pointer_grab( gdkwin, FALSE, 
    97 			  GDK_POINTER_MOTION_MASK|GDK_BUTTON_PRESS_MASK|GDK_BUTTON_RELEASE_MASK, 
    98 			  gdkwin, cursor, GDK_CURRENT_TIME ) == GDK_GRAB_SUCCESS;
    99     gdk_cursor_unref(cursor);
   100     if( success ) {
   101 	success = gdk_keyboard_grab( gdkwin, FALSE, GDK_CURRENT_TIME ) == GDK_GRAB_SUCCESS;
   102 	if( !success ) {
   103 	    gdk_pointer_ungrab(GDK_CURRENT_TIME);
   104 	}
   105     }
   106     win->is_grabbed = success;
   107     main_window_set_running(win, dreamcast_is_running());
   108     return success;
   109 }
   111 /**
   112  * Release the display grab.
   113  */
   114 void video_window_ungrab_display( main_window_t win )
   115 {
   116     gdk_pointer_ungrab(GDK_CURRENT_TIME);
   117     gdk_keyboard_ungrab(GDK_CURRENT_TIME);
   118     win->is_grabbed = FALSE;
   119     main_window_set_running(win, dreamcast_is_running());
   120 }
   122 static gboolean on_video_window_mouse_motion( GtkWidget *widget, GdkEventMotion *event,
   123 					      gpointer user_data )
   124 {
   125     main_window_t win = (main_window_t)user_data;
   126     int32_t x = (int32_t)event->x;
   127     int32_t y = (int32_t)event->y;
   128     if( win->is_grabbed && 
   129 	(x != win->mouse_x || y != win->mouse_y) ) {
   130 	uint32_t buttons = (event->state >> 8)&0x1F;
   131 	input_event_mouse( buttons, x - win->mouse_x, y - win->mouse_y );
   132 	video_window_center_pointer(win);
   133     }
   134     return TRUE;
   135 }
   137 static gboolean on_video_window_mouse_pressed( GtkWidget *widget, GdkEventButton *event,
   138 					       gpointer user_data )
   139 {
   140     main_window_t win = (main_window_t)user_data;
   141     if( win->is_grabbed ) {
   142 	// Get the buttons from the event state, and remove the released button
   143 	uint32_t buttons = ((event->state >> 8) & 0x1F) | (1<<(event->button-1));
   144 	input_event_mouse( buttons, 0, 0 );
   145     }
   146     return TRUE;
   147 }
   149 static gboolean on_video_window_mouse_released( GtkWidget *widget, GdkEventButton *event,
   150 					      gpointer user_data )
   151 {
   152     main_window_t win = (main_window_t)user_data;
   153     if( win->is_grabbed ) {
   154 	// Get the buttons from the event state, and remove the released button
   155 	uint32_t buttons = ((event->state >> 8) & 0x1F) & (~(1<<(event->button-1)));
   156 	input_event_mouse( buttons, 0, 0 );
   157     } else if( win->use_grab) {
   158 	video_window_grab_display(win);
   159     }
   160     return TRUE;
   161 }
   163 static gboolean on_video_window_key_pressed( GtkWidget *widget, GdkEventKey *event,
   164 					    gpointer user_data )
   165 {
   166     main_window_t win = (main_window_t)user_data;
   167     if( win->is_grabbed ) {
   168 	/* Check for ungrab key combo (ctrl-alt). Unfortunately GDK sends it as
   169 	 * a singly-modified keypress rather than a double-modified 'null' press, 
   170 	 * so we have to do a little more work.
   171 	 * Only check Ctrl/Shift/Alt for state - don't want to check numlock/capslock/
   172 	 * mouse buttons/etc
   173 	 */
   174         int mod = gdk_keycode_to_modifier(gtk_widget_get_display(widget), event->hardware_keycode);
   175 	int state = event->state & gtk_accelerator_get_default_mod_mask();
   176 	if( (state == GDK_CONTROL_MASK && mod == GDK_MOD1_MASK) ||
   177 	    (state == GDK_MOD1_MASK && mod == GDK_CONTROL_MASK) ) {
   178 	    video_window_ungrab_display(win);
   179 	    // Consume the keypress, DC doesn't get it.
   180 	    return TRUE;
   181 	}
   182     }
   183     input_event_keydown( NULL, gtk_get_unmodified_keyval(event), 1 );
   184     return TRUE;
   185 }
   187 static gboolean on_video_window_key_released( GtkWidget *widget, GdkEventKey *event,
   188 					     gpointer user_data )
   189 {
   190     main_window_t win = (main_window_t)user_data;
   191     input_event_keyup( NULL, gtk_get_unmodified_keyval(event), 0 );
   192     return TRUE;
   193 }
   195 static gboolean on_video_window_focus_changed( GtkWidget *widget, GdkEventFocus *event,
   196 					       gpointer user_data )
   197 {
   198     display_set_focused(event->in);
   199 }
   201 /*************************** Main window (frame) ******************************/
   203 static gboolean on_main_window_deleted( GtkWidget *widget, GdkEvent event, gpointer user_data )
   204 {
   205     exit(0);
   206 }
   208 static void on_main_window_state_changed( GtkWidget *widget, GdkEventWindowState *state, 
   209 					  gpointer userdata )
   210 {
   211     main_window_t win = (main_window_t)userdata;
   212     if( state->changed_mask & GDK_WINDOW_STATE_FULLSCREEN ) {
   213 	gboolean fs = (state->new_window_state & GDK_WINDOW_STATE_FULLSCREEN);
   214 	GtkWidget *frame = gtk_widget_get_parent(win->video);
   215 	if( frame->style == NULL ) {
   216 	    gtk_widget_set_style( frame, gtk_style_new() );
   217 	}
   218 	if( fs ) {
   219 	    gtk_widget_hide( win->menubar );
   220 	    gtk_widget_hide( win->toolbar );
   221 	    gtk_widget_hide( win->statusbar );
   223 	    frame->style->xthickness = 0;
   224 	    frame->style->ythickness = 0;
   225 	} else {
   226 	    frame->style->xthickness = 2;
   227 	    frame->style->ythickness = 2;
   228 	    gtk_widget_show( win->menubar );
   229 	    gtk_widget_show( win->toolbar );
   230 	    gtk_widget_show( win->statusbar );
   231 	}
   232 	gtk_widget_queue_draw( win->window );
   233     }
   234 }
   236 main_window_t main_window_new( const gchar *title, GtkWidget *menubar, GtkWidget *toolbar,
   237 			       GtkAccelGroup *accel_group )
   238 {
   239     GtkWidget *vbox;
   240     GtkWidget *frame;
   241     main_window_t win = g_malloc0( sizeof(struct main_window_info) );
   243     win->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
   244     win->menubar = menubar;
   245     win->toolbar = toolbar;
   246     win->use_grab = FALSE;
   247     win->is_grabbed = FALSE;
   248     gtk_window_set_title( GTK_WINDOW(win->window), title );
   249     gtk_window_add_accel_group (GTK_WINDOW (win->window), accel_group);
   251     gtk_toolbar_set_style( GTK_TOOLBAR(toolbar), GTK_TOOLBAR_ICONS );
   253     win->video = gtk_drawing_area_new();
   255 #ifdef HAVE_GLX    
   256     Display *display = gdk_x11_display_get_xdisplay( gtk_widget_get_display(win->window));
   257     Screen *screen = gdk_x11_screen_get_xscreen( gtk_widget_get_screen(win->window));
   258     int screen_no = XScreenNumberOfScreen(screen);
   259     if( !video_glx_init(display, screen_no) ) {
   260         ERROR( "Unable to initialize GLX, aborting" );
   261 	exit(3);
   262     }
   264     XVisualInfo *visual = video_gtk_get_visual();
   265     if( visual != NULL ) {
   266 	GdkVisual *gdkvis = gdk_x11_screen_lookup_visual( gtk_widget_get_screen(win->window), visual->visualid );
   267 	GdkColormap *colormap = gdk_colormap_new( gdkvis, FALSE );
   268 	gtk_widget_set_colormap( win->video, colormap );
   269     }
   270 #endif
   272     GTK_WIDGET_SET_FLAGS(win->video, GTK_CAN_FOCUS|GTK_CAN_DEFAULT);
   273     gtk_widget_set_size_request( win->video, 640, 480 ); 
   274     gtk_widget_set_double_buffered( win->video, FALSE );
   275     frame = gtk_frame_new(NULL);
   276     gtk_frame_set_shadow_type( GTK_FRAME(frame), GTK_SHADOW_IN );
   277     gtk_container_add( GTK_CONTAINER(frame), win->video );
   279     win->statusbar = gtk_statusbar_new();
   281     vbox = gtk_vbox_new(FALSE, 0);
   282     gtk_container_add( GTK_CONTAINER(win->window), vbox );
   283     gtk_box_pack_start( GTK_BOX(vbox), menubar, FALSE, FALSE, 0 );
   284     gtk_box_pack_start( GTK_BOX(vbox), toolbar, FALSE, FALSE, 0 );
   285     gtk_box_pack_start( GTK_BOX(vbox), frame, TRUE, TRUE, 0 );
   286     gtk_box_pack_start( GTK_BOX(vbox), win->statusbar, FALSE, FALSE, 0 );
   287     gtk_widget_show_all( win->window );
   288     gtk_widget_grab_focus( win->video );
   290     gtk_statusbar_push( GTK_STATUSBAR(win->statusbar), 1, "Stopped" );
   292     g_signal_connect( win->window, "delete_event", 
   293 		      G_CALLBACK(on_main_window_deleted), win );
   294     g_signal_connect( win->window, "window-state-event",
   295 		      G_CALLBACK(on_main_window_state_changed), win );
   297     g_signal_connect( win->video, "key-press-event",
   298 		      G_CALLBACK(on_video_window_key_pressed), win );
   299     g_signal_connect( win->video, "key-release-event",
   300 		      G_CALLBACK(on_video_window_key_released), win );
   301     g_signal_connect( win->video, "motion-notify-event",
   302 		      G_CALLBACK(on_video_window_mouse_motion), win );
   303     g_signal_connect( win->video, "button-press-event",
   304 		      G_CALLBACK(on_video_window_mouse_pressed), win );
   305     g_signal_connect( win->video, "button-release-event", 
   306 		      G_CALLBACK(on_video_window_mouse_released), win );
   307     g_signal_connect( win->video, "focus-in-event",
   308 		      G_CALLBACK(on_video_window_focus_changed), win);
   309     g_signal_connect( win->video, "focus-out-event",
   310 		      G_CALLBACK(on_video_window_focus_changed), win);
   312     gtk_widget_add_events( win->video, 
   313 			   GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK |
   314 			   GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
   315 			   GDK_POINTER_MOTION_MASK | GDK_FOCUS_CHANGE_MASK );
   317     return win;
   318 }
   320 void main_window_set_status_text( main_window_t win, char *text )
   321 {
   322     gtk_statusbar_pop( GTK_STATUSBAR(win->statusbar), 1 );
   323     if( win->is_grabbed ) {
   324 	char buf[128];
   325 	snprintf( buf, sizeof(buf), "%s %s", text, _("(Press <ctrl><alt> to release grab)") );
   326 	gtk_statusbar_push( GTK_STATUSBAR(win->statusbar), 1, buf );
   327     } else {
   328 	gtk_statusbar_push( GTK_STATUSBAR(win->statusbar), 1, text );
   329     }
   330 }
   332 void main_window_set_running( main_window_t win, gboolean running )
   333 {
   334     char *text = running ? _("Running") : _("Stopped");
   335     gtk_gui_enable_action( "Pause", running );
   336     gtk_gui_enable_action( "Run", !running && dreamcast_can_run() );
   337     main_window_set_status_text( win, text );
   338 }
   340 void main_window_set_framerate( main_window_t win, float rate )
   341 {
   344 }
   346 void main_window_set_speed( main_window_t win, double speed )
   347 {
   348     char buf[32];
   350     snprintf( buf, 32, "Running (%2.4f%%)", speed );
   351     main_window_set_status_text( win, buf );
   352 }
   354 GtkWidget *main_window_get_renderarea( main_window_t win )
   355 {
   356     return win->video;
   357 }
   359 GtkWindow *main_window_get_frame( main_window_t win )
   360 {
   361     return GTK_WINDOW(win->window);
   362 }
   364 void main_window_set_fullscreen( main_window_t win, gboolean fullscreen )
   365 {
   366     if( fullscreen ) {
   367 	gtk_window_fullscreen( GTK_WINDOW(win->window) );
   368     } else {
   369 	gtk_window_unfullscreen( GTK_WINDOW(win->window) );
   370     }
   371 }
   373 void main_window_set_use_grab( main_window_t win, gboolean use_grab )
   374 {
   375     if( use_grab != win->use_grab ) {
   376 	if( use_grab ) {
   377 	    GdkCursor *cursor = gdk_cursor_new( GDK_HAND2 );
   378 	    gdk_window_set_cursor( win->video->window, cursor );
   379 	    gdk_cursor_unref( cursor );
   380 	} else {
   381 	    gdk_window_set_cursor( win->video->window, NULL );
   382 	    if( gdk_pointer_is_grabbed() ) {
   383 		video_window_ungrab_display(win);
   384 	    }
   385 	}
   386 	win->use_grab = use_grab;
   387     }
   388 }
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