1.1 --- a/src/gtkui/main_win.c	Fri Jan 25 05:52:51 2008 +0000
     1.2 +++ b/src/gtkui/main_win.c	Sat Jan 26 02:45:27 2008 +0000
     1.3 @@ -26,7 +26,9 @@
     1.4  #include <stdlib.h>
     1.5  
     1.6  #include <gtk/gtk.h>
     1.7 +#include <gdk/gdk.h>
     1.8  #include <gdk/gdkx.h>
     1.9 +#include <gdk/gdkkeysyms.h>
    1.10  #include <X11/Xutil.h>
    1.11  
    1.12  #include "dream.h"
    1.13 @@ -41,8 +43,159 @@
    1.14      GtkWidget *toolbar;
    1.15      GtkWidget *statusbar;
    1.16      GtkActionGroup *actions;
    1.17 +    gboolean use_grab;
    1.18 +    gboolean is_grabbed;
    1.19 +    int32_t mouse_x, mouse_y;
    1.20  };
    1.21  
    1.22 +
    1.23 +/******************** Video window **************************/
    1.24 +
    1.25 +/**
    1.26 + * Adjust the mouse pointer so that it appears in the center of the video
    1.27 + * window. Mainly used for when we have the mouse grab
    1.28 + */
    1.29 +void video_window_center_pointer( main_window_t win )
    1.30 +{
    1.31 +    GdkDisplay *display = gtk_widget_get_display(win->video);
    1.32 +    GdkScreen *screen = gtk_widget_get_screen(win->video);
    1.33 +    int x,y;
    1.34 +    int width, height;
    1.35 +
    1.36 +    gdk_window_get_origin(win->video->window, &x, &y);
    1.37 +    gdk_drawable_get_size(GDK_DRAWABLE(win->video->window), &width, &height);
    1.38 +    x += width / 2;
    1.39 +    y += height / 2;
    1.40 +    
    1.41 +    gdk_display_warp_pointer( display, screen, x, y );
    1.42 +    win->mouse_x = width/2;
    1.43 +    win->mouse_y = height/2;
    1.44 +}
    1.45 +
    1.46 +/**
    1.47 + * Grab the keyboard and mouse for the display. The mouse cursor is hidden and
    1.48 + * moved to the centre of the window.
    1.49 + *
    1.50 + * @param win The window receiving the grab
    1.51 + * @return TRUE if the grab was successful, FALSE on failure.
    1.52 + */
    1.53 +gboolean video_window_grab_display( main_window_t win )
    1.54 +{
    1.55 +    GdkWindow *gdkwin = win->video->window;
    1.56 +    GdkColor color = { 0,0,0,0 };
    1.57 +    char bytes[32]; /* 16 * 16 / 8 */
    1.58 +    memset(bytes, 0, 32);
    1.59 +    GdkPixmap *pixmap = gdk_bitmap_create_from_data(NULL, bytes, 16, 16);
    1.60 +    GdkCursor *cursor = gdk_cursor_new_from_pixmap(pixmap, pixmap, &color, &color, 16, 16);
    1.61 +    gdk_pixmap_unref(pixmap);
    1.62 +
    1.63 +    gboolean success =
    1.64 +	gdk_pointer_grab( gdkwin, FALSE, 
    1.65 +			  GDK_POINTER_MOTION_MASK|GDK_BUTTON_PRESS_MASK|GDK_BUTTON_RELEASE_MASK, 
    1.66 +			  gdkwin, cursor, GDK_CURRENT_TIME ) == GDK_GRAB_SUCCESS;
    1.67 +    gdk_cursor_unref(cursor);
    1.68 +    if( success ) {
    1.69 +	success = gdk_keyboard_grab( gdkwin, FALSE, GDK_CURRENT_TIME ) == GDK_GRAB_SUCCESS;
    1.70 +	if( !success ) {
    1.71 +	    gdk_pointer_ungrab(GDK_CURRENT_TIME);
    1.72 +	}
    1.73 +    }
    1.74 +    win->is_grabbed = success;
    1.75 +    main_window_set_running(win, dreamcast_is_running());
    1.76 +    return success;
    1.77 +}
    1.78 +
    1.79 +/**
    1.80 + * Release the display grab.
    1.81 + */
    1.82 +void video_window_ungrab_display( main_window_t win )
    1.83 +{
    1.84 +    gdk_pointer_ungrab(GDK_CURRENT_TIME);
    1.85 +    gdk_keyboard_ungrab(GDK_CURRENT_TIME);
    1.86 +    win->is_grabbed = FALSE;
    1.87 +    main_window_set_running(win, dreamcast_is_running());
    1.88 +}
    1.89 +
    1.90 +static gboolean on_video_window_mouse_motion( GtkWidget *widget, GdkEventMotion *event,
    1.91 +					      gpointer user_data )
    1.92 +{
    1.93 +    main_window_t win = (main_window_t)user_data;
    1.94 +    int32_t x = (int32_t)event->x;
    1.95 +    int32_t y = (int32_t)event->y;
    1.96 +    if( win->is_grabbed && 
    1.97 +	(x != win->mouse_x || y != win->mouse_y) ) {
    1.98 +	uint32_t buttons = (event->state >> 8)&0x1F;
    1.99 +	input_event_mouse( buttons, x - win->mouse_x, y - win->mouse_y );
   1.100 +	video_window_center_pointer(win);
   1.101 +    }
   1.102 +    return TRUE;
   1.103 +}
   1.104 +
   1.105 +static gboolean on_video_window_mouse_pressed( GtkWidget *widget, GdkEventButton *event,
   1.106 +					       gpointer user_data )
   1.107 +{
   1.108 +    main_window_t win = (main_window_t)user_data;
   1.109 +    if( win->is_grabbed ) {
   1.110 +	// Get the buttons from the event state, and remove the released button
   1.111 +	uint32_t buttons = ((event->state >> 8) & 0x1F) | (1<<(event->button-1));
   1.112 +	input_event_mouse( buttons, 0, 0 );
   1.113 +    }
   1.114 +    return TRUE;
   1.115 +}
   1.116 +
   1.117 +static gboolean on_video_window_mouse_released( GtkWidget *widget, GdkEventButton *event,
   1.118 +					      gpointer user_data )
   1.119 +{
   1.120 +    main_window_t win = (main_window_t)user_data;
   1.121 +    if( win->is_grabbed ) {
   1.122 +	// Get the buttons from the event state, and remove the released button
   1.123 +	uint32_t buttons = ((event->state >> 8) & 0x1F) & (~(1<<(event->button-1)));
   1.124 +	input_event_mouse( buttons, 0, 0 );
   1.125 +    } else if( win->use_grab) {
   1.126 +	video_window_grab_display(win);
   1.127 +    }
   1.128 +    return TRUE;
   1.129 +}
   1.130 +
   1.131 +static gboolean on_video_window_key_pressed( GtkWidget *widget, GdkEventKey *event,
   1.132 +					    gpointer user_data )
   1.133 +{
   1.134 +    main_window_t win = (main_window_t)user_data;
   1.135 +    if( win->is_grabbed ) {
   1.136 +	/* Check for ungrab key combo (ctrl-alt). Unfortunately GDK sends it as
   1.137 +	 * a singly-modified keypress rather than a double-modified 'null' press, 
   1.138 +	 * so we have to do a little more work.
   1.139 +	 */
   1.140 +	if( (event->state == GDK_CONTROL_MASK &&
   1.141 +	     (event->keyval == GDK_Alt_L || event->keyval == GDK_Alt_R)) ||
   1.142 +	    (event->state == GDK_MOD1_MASK &&
   1.143 +	     (event->keyval == GDK_Control_L || event->keyval == GDK_Control_R)) ) {
   1.144 +	    video_window_ungrab_display(win);
   1.145 +	    // Consume the keypress, DC doesn't get it.
   1.146 +	    return TRUE;
   1.147 +	}
   1.148 +    }
   1.149 +    input_event_keydown( gtk_get_unmodified_keyval(event) );
   1.150 +    return TRUE;
   1.151 +}
   1.152 +
   1.153 +static gboolean on_video_window_key_released( GtkWidget *widget, GdkEventKey *event,
   1.154 +					     gpointer user_data )
   1.155 +{
   1.156 +    main_window_t win = (main_window_t)user_data;
   1.157 +    input_event_keyup( gtk_get_unmodified_keyval(event) );
   1.158 +    return TRUE;
   1.159 +}
   1.160 +
   1.161 +static gboolean on_video_window_grab_broken( GtkWidget *widget, GdkEventGrabBroken *event,
   1.162 +					gpointer user_data )
   1.163 +{
   1.164 +    main_window_t win = (main_window_t)user_data;
   1.165 +    fprintf( stderr, "Grab broken\n" );
   1.166 +}
   1.167 +
   1.168 +/*************************** Main window (frame) ******************************/
   1.169 +
   1.170  static gboolean on_main_window_deleted( GtkWidget *widget, GdkEvent event, gpointer user_data )
   1.171  {
   1.172      exit(0);
   1.173 @@ -86,6 +239,8 @@
   1.174      win->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
   1.175      win->menubar = menubar;
   1.176      win->toolbar = toolbar;
   1.177 +    win->use_grab = FALSE;
   1.178 +    win->is_grabbed = FALSE;
   1.179      gtk_window_set_title( GTK_WINDOW(win->window), title );
   1.180      gtk_window_add_accel_group (GTK_WINDOW (win->window), accel_group);
   1.181  
   1.182 @@ -106,6 +261,7 @@
   1.183      gtk_widget_set_colormap( win->video, colormap );
   1.184      GTK_WIDGET_SET_FLAGS(win->video, GTK_CAN_FOCUS|GTK_CAN_DEFAULT);
   1.185      gtk_widget_set_size_request( win->video, 640, 480 ); 
   1.186 +    gtk_widget_set_double_buffered( win->video, FALSE );
   1.187      frame = gtk_frame_new(NULL);
   1.188      gtk_frame_set_shadow_type( GTK_FRAME(frame), GTK_SHADOW_IN );
   1.189      gtk_container_add( GTK_CONTAINER(frame), win->video );
   1.190 @@ -122,19 +278,51 @@
   1.191      gtk_widget_grab_focus( win->video );
   1.192      
   1.193      gtk_statusbar_push( GTK_STATUSBAR(win->statusbar), 1, "Stopped" );
   1.194 +
   1.195      g_signal_connect( win->window, "delete_event", 
   1.196  		      G_CALLBACK(on_main_window_deleted), win );
   1.197      g_signal_connect( win->window, "window-state-event",
   1.198  		      G_CALLBACK(on_main_window_state_changed), win );
   1.199 +
   1.200 +    g_signal_connect( win->video, "grab-broken-event",
   1.201 +		      G_CALLBACK(on_video_window_grab_broken), win );
   1.202 +    g_signal_connect( win->video, "key-press-event",
   1.203 +		      G_CALLBACK(on_video_window_key_pressed), win );
   1.204 +    g_signal_connect( win->video, "key-release-event",
   1.205 +		      G_CALLBACK(on_video_window_key_released), win );
   1.206 +    g_signal_connect( win->video, "motion-notify-event",
   1.207 +		      G_CALLBACK(on_video_window_mouse_motion), win );
   1.208 +    g_signal_connect( win->video, "button-press-event",
   1.209 +		      G_CALLBACK(on_video_window_mouse_pressed), win );
   1.210 +    g_signal_connect( win->video, "button-release-event", 
   1.211 +		      G_CALLBACK(on_video_window_mouse_released), win );
   1.212 +
   1.213 +    gtk_widget_add_events( win->video, 
   1.214 +			   GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK |
   1.215 +			   GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
   1.216 +			   GDK_POINTER_MOTION_MASK );
   1.217 +
   1.218      return win;
   1.219  }
   1.220  
   1.221 +void main_window_set_status_text( main_window_t win, char *text )
   1.222 +{
   1.223 +    gtk_statusbar_pop( GTK_STATUSBAR(win->statusbar), 1 );
   1.224 +    if( win->is_grabbed ) {
   1.225 +	char buf[128];
   1.226 +	snprintf( buf, sizeof(buf), "%s %s", text, _("(Press <ctrl><alt> to release grab)") );
   1.227 +	gtk_statusbar_push( GTK_STATUSBAR(win->statusbar), 1, buf );
   1.228 +    } else {
   1.229 +	gtk_statusbar_push( GTK_STATUSBAR(win->statusbar), 1, text );
   1.230 +    }
   1.231 +}
   1.232 +
   1.233  void main_window_set_running( main_window_t win, gboolean running )
   1.234  {
   1.235 +    char *text = running ? _("Running") : _("Stopped");
   1.236      gtk_gui_enable_action( "Pause", running );
   1.237      gtk_gui_enable_action( "Run", !running && dreamcast_can_run() );
   1.238 -    gtk_statusbar_pop( GTK_STATUSBAR(win->statusbar), 1 );
   1.239 -    gtk_statusbar_push( GTK_STATUSBAR(win->statusbar), 1, running ? "Running" : "Stopped" );
   1.240 +    main_window_set_status_text( win, text );
   1.241  }
   1.242  
   1.243  void main_window_set_framerate( main_window_t win, float rate )
   1.244 @@ -148,10 +336,7 @@
   1.245      char buf[32];
   1.246  
   1.247      snprintf( buf, 32, "Running (%2.4f%%)", speed );
   1.248 -    gtk_statusbar_pop( GTK_STATUSBAR(win->statusbar), 1 );
   1.249 -    gtk_statusbar_push( GTK_STATUSBAR(win->statusbar), 1, buf );
   1.250 -    
   1.251 -
   1.252 +    main_window_set_status_text( win, buf );
   1.253  }
   1.254  
   1.255  GtkWidget *main_window_get_renderarea( main_window_t win )
   1.256 @@ -172,3 +357,20 @@
   1.257  	gtk_window_unfullscreen( GTK_WINDOW(win->window) );
   1.258      }
   1.259  }
   1.260 +
   1.261 +void main_window_set_use_grab( main_window_t win, gboolean use_grab )
   1.262 +{
   1.263 +    if( use_grab != win->use_grab ) {
   1.264 +	if( use_grab ) {
   1.265 +	    GdkCursor *cursor = gdk_cursor_new( GDK_HAND2 );
   1.266 +	    gdk_window_set_cursor( win->video->window, cursor );
   1.267 +	    gdk_cursor_unref( cursor );
   1.268 +	} else {
   1.269 +	    gdk_window_set_cursor( win->video->window, NULL );
   1.270 +	    if( gdk_pointer_is_grabbed() ) {
   1.271 +		video_window_ungrab_display(win);
   1.272 +	    }
   1.273 +	}
   1.274 +	win->use_grab = use_grab;
   1.275 +    }
   1.276 +}