Here is a modified gtk2.c with a patch to allow you to choose gtk thru configure
(from Sebastien Bechet's patch). If you choose to build both sdl and gtk,
then by default qemu will use SDL but you can tell it to use the gtk interface
by passing it the "-use-gtk" switch on the command line.

On Fri, May 27, 2005 at 02:06:41PM -0400, Jim C. Brown wrote:
> On Fri, May 27, 2005 at 11:28:33AM -0400, Jim C. Brown wrote:
> > - modifier detection isnt working, so its difficult to get a grab and not
> > possible to ungrab - this is why the no-sdl-grab patch is included
> > - need to use "-monitor stdio" because changing virtual consoles doesnt work
> > 
> 
> Fixed. It should work perfectly now. New gtk2.c attached.
> 
> -- 
> Infinite complexity begets infinite beauty.
> Infinite precision begets infinite perfection.

--- vl.c.orig   Fri May 27 17:49:15 2005
+++ vl.c        Fri May 27 18:07:28 2005
@@ -149,6 +149,7 @@
 TextConsole *vga_console;
 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
+int use_gtk = 0;
 
 /***********************************************************/
 /* x86 ISA bus support */
@@ -2875,6 +2876,7 @@
     QEMU_OPTION_std_vga,
     QEMU_OPTION_no_sdl_grab,
     QEMU_OPTION_funny_hack,
+    QEMU_OPTION_use_gtk,
     QEMU_OPTION_monitor,
     QEMU_OPTION_serial,
     QEMU_OPTION_parallel,
@@ -2946,6 +2948,7 @@
     { "std-vga", 0, QEMU_OPTION_std_vga },
     { "no-sdl-grab", 0, QEMU_OPTION_no_sdl_grab },
     { "funny_hack", 0, QEMU_OPTION_funny_hack },
+    { "use-gtk", 0, QEMU_OPTION_use_gtk },
     { "monitor", 1, QEMU_OPTION_monitor },
     { "serial", 1, QEMU_OPTION_serial },
     { "parallel", 1, QEMU_OPTION_parallel },
@@ -3349,6 +3352,9 @@
             case QEMU_OPTION_funny_hack:
                 funny_hack = 1;
                 break;
+            case QEMU_OPTION_use_gtk:
+                use_gtk = 1;
+                break;
             case QEMU_OPTION_g:
                 {
                     const char *p;
@@ -3598,7 +3604,17 @@
     if (nographic) {
         dumb_display_init(ds);
     } else {
+#if defined(CONFIG_GTK)
 #if defined(CONFIG_SDL)
+       /* so we can choose */
+       if (use_gtk)
+        gtk2_display_init(ds, full_screen);
+       else
+        sdl_display_init(ds, full_screen);
+#else
+        gtk2_display_init(ds, full_screen);
+#endif
+#elif defined(CONFIG_SDL)
         sdl_display_init(ds, full_screen);
 #elif defined(CONFIG_COCOA)
         cocoa_display_init(ds, full_screen);
--- vl.h.orig   Tue Apr 26 17:52:58 2005
+++ vl.h        Fri May 27 18:07:19 2005
@@ -576,6 +576,9 @@
 /* sdl.c */
 void sdl_display_init(DisplayState *ds, int full_screen);
 
+/* gtk2.c */
+void gtk2_display_init(DisplayState *ds, int full_screen);
+
 /* cocoa.m */
 void cocoa_display_init(DisplayState *ds, int full_screen);
 
--- configure.orig      Tue Apr 26 17:58:12 2005
+++ configure   Fri May 27 17:57:34 2005
@@ -171,6 +171,8 @@
   ;;
   --disable-sdl) sdl="no"
   ;;
+  --enable-gtk) gtk="yes"
+  ;;
   --enable-fmod) fmod="yes"
   ;;
   --fmod-lib=*) fmod_lib=${opt#--fmod-lib=}
@@ -311,6 +313,34 @@
 fi # cross compilation
 fi # -z $sdl
 
+##########################################
+# GTK probe
+
+gtk_too_old=no
+
+if test -z "$gtk" ; then
+
+gtk=no
+
+# normal GTK probe
+cat > $TMPC << EOF
+#include <stdlib.h>
+#include <gtk/gtk.h>
+int main(int argc, char **argv) { gtk_init(&argc, &argv); return EXIT_SUCCESS; 
}
+EOF
+
+if $cc -o $TMPE `pkg-config --cflags --libs gtk+-2.0 2> /dev/null` $TMPC 2> 
/dev/null ; then
+_gtkversion=`pkg-config --modversion gtk+-2.0 | sed 's/[^0-9]//g'`
+if test "$_sdlversion" -lt 240 ; then
+  gtk_too_old=yes
+else
+  gtk=yes
+fi
+
+fi # gtk compile test
+
+fi # -z $gtk
+
 if test x"$1" = x"-h" -o x"$1" = x"--help" ; then
 cat << EOF
 
@@ -433,6 +463,7 @@
 if test "$sdl" != "no" ; then
     echo "SDL static link   $sdl_static"
 fi
+echo "GTK support       $gtk"
 echo "mingw32 support   $mingw32"
 echo "Adlib support     $adlib"
 echo -n "FMOD support      $fmod"
@@ -717,6 +748,14 @@
         fi
         echo "" >> $config_mak
     fi
+fi
+
+if test "$gtk" = "yes" ; then
+    echo "#define CONFIG_GTK 1" >> $config_h
+    echo "CONFIG_GTK=yes" >> $config_mak
+    echo "GTK_LIBS=`pkg-config --libs gtk+-2.0`" >> $config_mak
+    echo "GTK_CFLAGS=`pkg-config --cflags gtk+-2.0`" >> $config_mak
+    echo "" >> $config_mak
 fi
 
 if test "$cocoa" = "yes" ; then
--- Makefile.target.orig        Fri May 27 11:22:46 2005
+++ Makefile.target     Fri May 27 18:03:32 2005
@@ -357,6 +357,9 @@
 ifdef CONFIG_SDL
 VL_OBJS+=sdl.o
 endif
+ifdef CONFIG_GTK
+VL_OBJS+=gtk2.o
+endif
 ifdef CONFIG_COCOA
 VL_OBJS+=cocoa.o
 COCOA_LIBS=-F/System/Library/Frameworks -framework Cocoa
@@ -392,13 +395,16 @@
 endif
 
 $(QEMU_SYSTEM): $(VL_OBJS) libqemu.a
-       $(CC) $(VL_LDFLAGS) -o $@ $^ $(LIBS) $(SDL_LIBS) $(COCOA_LIBS) 
$(VL_LIBS) -L/usr/local/lib -L/usr/X11R6/lib -lgtk-x11-2.0 -lgdk-x11-2.0 
-lpango-1.0 -latk-1.0 -rdynamic -lgmodule-2.0 -lglib-2.0 -ldl -lXi -lXext -lX11 
-lXft -lm
+       $(CC) $(VL_LDFLAGS) -o $@ $^ $(LIBS) $(SDL_LIBS) $(COCOA_LIBS) 
$(GTK_LIBS) $(VL_LIBS)
 
 cocoa.o: cocoa.m
        $(CC) $(CFLAGS) $(DEFINES) -c -o $@ $<
 
 sdl.o: sdl.c keymaps.c sdl_keysym.h
        $(CC) $(CFLAGS) $(DEFINES) $(SDL_CFLAGS) -c -o $@ $<

+gtk2.o: gtk2.c keymaps.c gdk_keysym.h
+       $(CC) $(CFLAGS) $(DEFINES) $(GTK_CFLAGS) -c -o $@ $<
+ 
 sdlaudio.o: sdlaudio.c
        $(CC) $(CFLAGS) $(DEFINES) $(SDL_CFLAGS) -c -o $@ $<
/*
 * QEMU GTK2 display driver
 * based on SDL driver by Fabrice
 * 
 * Copyright (c) 2005 Jim Brown
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
#include "vl.h"

#include <gtk/gtk.h>
#include <gdk/gdk.h>

// for those of you who dont want to get the no-sdl-grab patch
static int grab_with_sdl = 0;

/* define our own bitshift enums to allow qemugtk to know difference between 
left and right alt - something gtk doesnt provide in its modifiers mask. this 
uses qemu's own modifier_state[] map in order to guess correctly */
typedef enum
{
        gtkshiftleft = 1 << 0,
        gtkshiftright = 1 << 1,
        gtkcontrolleft = 1 << 2,
        gtkcontrolright = 1 << 3,
        gtkaltleft = 1 << 4,
        gtkaltright = 1 << 5,
        gtkcapslock = 1 << 6
} gtk2keymod;


static GtkWidget *screen;
static GdkImage *image=NULL;
static int ox = 0, oy = 0;
static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
static int last_vm_running;
static int gui_saved_grab;
static int gui_fullscreen;
static int gui_key_modifier_pressed;
static int gui_keysym;
static int saved_grab_with_sdl;
static int gui_fullscreen_initial_grab;
static int gui_grab_code = gtkaltleft | gtkcontrolleft;
static uint8_t modifiers_state[256];

static gboolean gtk2_expose(GtkWidget *wid, GdkEventExpose *event)
{
    gdk_draw_image(wid->window, wid->style->fg_gc[GTK_WIDGET_STATE(wid)], 
image, event->area.x, event->area.y, event->area.x, event->area.y, 
event->area.width, event->area.height);
    return TRUE;
}

static void gtk2_update(DisplayState *ds, int x, int y, int w, int h)
{
    //    printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
    GdkEventExpose ev;
    ev.area.x = x;
    ev.area.y = y;
    ev.area.width = w;
    ev.area.height = h;
    gtk2_expose(screen, &ev);
}

static void gtk2_resize(DisplayState *ds, int w, int h)
{

    //    printf("resizing to %d %d\n", w, h);

    /*if (gui_fullscreen)
        gtk_window_fullscreen(GTK_WINDOW(screen));
    else
        gtk_window_unfullscreen(GTK_WINDOW(screen));*/

    if (image)
         g_object_unref(image);

/* gdk_visual_get_best_with_depth() ??? but then how to paint onto window? */
    image = gdk_image_new(GDK_IMAGE_NORMAL, gdk_visual_get_system(), w, h);
    gdk_image_set_colormap(image, gdk_colormap_get_system());
    //if (!gui_fullscreen)
    //{
         gtk_window_resize(GTK_WINDOW(screen), w, h);
    //}
    ds->data = image->mem;
    ds->linesize = image->bpl;
    ds->depth = image->bits_per_pixel;
    ds->width = w;
    ds->height = h;
    gtk2_update(ds, 0, 0, w, h);
}

static gboolean gtk2_config(GtkWidget *wid, GdkEventConfigure *ev, DisplayState 
*ds)
{
    //gtk2_resize(ds, ev->width, ev->height);
    return TRUE;
}

/* generic keyboard conversion */

#include "gdk_keysym.h"
#include "keymaps.c"

static kbd_layout_t *kbd_layout = NULL;

static uint8_t gtk2_keyevent_to_keycode_generic(const GdkEventKey *ev)
{
    int keysym;
    /* workaround for X11+SDL bug with AltGR - is it still needed for Gtk2? */
    keysym = ev->keyval;
    if (keysym == 0 && ev->hardware_keycode == 113)
        keysym = GDK_Mode_switch;
    return keysym2scancode(kbd_layout, keysym);
}

/* specific keyboard conversions from scan codes */

#if defined(_WIN32)

static uint8_t gtk2_keyevent_to_keycode(const GdkEventKey *ev)
{
    return ev->hardware_keycode; /* does this work on win32 gtk? */
}

#else

static const uint8_t x_keycode_to_pc_keycode[61] = {
   0xc7,      /*  97  Home   */
   0xc8,      /*  98  Up     */
   0xc9,      /*  99  PgUp   */
   0xcb,      /* 100  Left   */
   0x4c,        /* 101  KP-5   */
   0xcd,      /* 102  Right  */
   0xcf,      /* 103  End    */
   0xd0,      /* 104  Down   */
   0xd1,      /* 105  PgDn   */
   0xd2,      /* 106  Ins    */
   0xd3,      /* 107  Del    */
   0x9c,      /* 108  Enter  */
   0x9d,      /* 109  Ctrl-R */
   0x0,       /* 110  Pause  */
   0xb7,      /* 111  Print  */
   0xb5,      /* 112  Divide */
   0xb8,      /* 113  Alt-R  */
   0xc6,      /* 114  Break  */   
   0x0,         /* 115 */
   0x0,         /* 116 */
   0x0,         /* 117 */
   0x0,         /* 118 */
   0x0,         /* 119 */
   0x70,         /* 120 Hiragana_Katakana */
   0x0,         /* 121 */
   0x0,         /* 122 */
   0x73,         /* 123 backslash */
   0x0,         /* 124 */
   0x0,         /* 125 */
   0x0,         /* 126 */
   0x0,         /* 127 */
   0x0,         /* 128 */
   0x79,         /* 129 Henkan */
   0x0,         /* 130 */
   0x7b,         /* 131 Muhenkan */
   0x0,         /* 132 */
   0x7d,         /* 133 Yen */
   0x0,         /* 134 */
   0x0,         /* 135 */
   0x47,         /* 136 KP_7 */
   0x48,         /* 137 KP_8 */
   0x49,         /* 138 KP_9 */
   0x4b,         /* 139 KP_4 */
   0x4c,         /* 140 KP_5 */
   0x4d,         /* 141 KP_6 */
   0x4f,         /* 142 KP_1 */
   0x50,         /* 143 KP_2 */
   0x51,         /* 144 KP_3 */
   0x52,         /* 145 KP_0 */
   0x53,         /* 146 KP_. */
   0x47,         /* 147 KP_HOME */
   0x48,         /* 148 KP_UP */
   0x49,         /* 149 KP_PgUp */
   0x4b,         /* 150 KP_Left */
   0x4c,         /* 151 KP_ */
   0x4d,         /* 152 KP_Right */
   0x4f,         /* 153 KP_End */
   0x50,         /* 154 KP_Down */
   0x51,         /* 155 KP_PgDn */
   0x52,         /* 156 KP_Ins */
   0x53,         /* 157 KP_Del */
};

static uint8_t gtk2_keyevent_to_keycode(const GdkEventKey *ev)
{
    int keycode;

    keycode = ev->hardware_keycode;

    if (keycode < 9) {
        keycode = 0;
    } else if (keycode < 97) {
        keycode -= 8; /* just an offset */
    } else if (keycode < 158) {
        /* use conversion table */
        keycode = x_keycode_to_pc_keycode[keycode - 97];
    } else {
        keycode = 0;
    }
    return keycode;
}

#endif

static void reset_keys(void)
{
    int i;
    for(i = 0; i < 256; i++) {
        if (modifiers_state[i]) {
            if (i & 0x80)
                kbd_put_keycode(0xe0);
            kbd_put_keycode(i | 0x80);
            modifiers_state[i] = 0;
        }
    }
}

/* convert GDK modifiers and invoke ugly hack to distinguish
between left and right shift/control/alt */
static guint gtk2_GetModState(const GdkEventKey *ev)
{
        guint key = 0, keyval = ev->keyval, state = ev->state;
        switch(keyval)
        {
                case GDK_Shift_L:
                        if (ev->type != GDK_KEY_RELEASE)
                                key |= gtkshiftleft;
                        keyval = 1;
                        break;
                case GDK_Shift_R:
                        if (ev->type != GDK_KEY_RELEASE)
                                key |= gtkshiftright;
                        keyval = 1;
                        break;
                case GDK_Control_L:
                        if (ev->type != GDK_KEY_RELEASE)
                                key |= gtkcontrolleft;
                        keyval = 2;
                        break;
                case GDK_Control_R:
                        if (ev->type != GDK_KEY_RELEASE)
                                key |= gtkcontrolright;
                        keyval = 2;
                        break;
                case GDK_Alt_L:
                        if (ev->type != GDK_KEY_RELEASE)
                                key |= gtkaltleft;
                        keyval = 3;
                        break;
                case GDK_Alt_R:
                        if (ev->type != GDK_KEY_RELEASE)
                                key |= gtkaltright;
                        keyval = 3;
                        break;
                case GDK_Caps_Lock:
                        if (ev->type != GDK_KEY_RELEASE)
                                key |= gtkcapslock;
                        keyval = 4;
                        break;
                default:
                        keyval = 0;
                        break;
        }
        if (keyval != 1 && (state & GDK_SHIFT_MASK))
        {
                if (modifiers_state[0x2a])
                        key |= gtkshiftleft;
                if (modifiers_state[0x36])
                        key |= gtkshiftright;
        }
        if (keyval != 2 && (state & GDK_CONTROL_MASK))
        {
                if (modifiers_state[0x1d])
                        key |= gtkcontrolleft;
                if (modifiers_state[0x9d])
                        key |= gtkcontrolright;
        }
        if (keyval != 3 && (state & GDK_MOD1_MASK)) /* fixme: need to do a 
check to make sure that alt is mapped to GDK_MOD1_MASK in the GDK_Keymap */
        {
                if (modifiers_state[0x38])
                        key |= gtkaltleft;
                if (modifiers_state[0xb8])
                        key |= gtkaltright;
        }
        if (keyval != 4 && (state & GDK_LOCK_MASK))
                key |= gtkcapslock;
        return key;
}

static void gtk2_process_key(GdkEventKey *ev)
{
    int keycode, v;

    if (ev->keyval == GDK_Pause) {
        /* specific case */
        v = 0;
        if (ev->type == GDK_KEY_RELEASE)
            v |= 0x80;
        kbd_put_keycode(0xe1);
        kbd_put_keycode(0x1d | v);
        kbd_put_keycode(0x45 | v);
        return;
    }

    if (kbd_layout) {
        keycode = gtk2_keyevent_to_keycode_generic(ev);
    } else {
        keycode = gtk2_keyevent_to_keycode(ev);
    }

    switch(keycode) {
    case 0x00:
        /* sent when leaving window: reset the modifiers state */
        reset_keys();
        return;
    case 0x2a:                          /* Left Shift */
    case 0x36:                          /* Right Shift */
    case 0x1d:                          /* Left CTRL */
    case 0x9d:                          /* Right CTRL */
    case 0x38:                          /* Left ALT */
    case 0xb8:                         /* Right ALT */
        if (ev->type == GDK_KEY_RELEASE)
            modifiers_state[keycode] = 0;
        else
            modifiers_state[keycode] = 1;
        break;
    case 0x45: /* num lock */
    case 0x3a: /* caps lock */
        /* GTK does send the key up event, so we dont generate it */
        /*kbd_put_keycode(keycode);
        kbd_put_keycode(keycode | 0x80);
        return;*/
        break;
    }

    /* now send the key code */
    if (keycode & 0x80)
        kbd_put_keycode(0xe0);
    if (ev->type == GDK_KEY_RELEASE)
        kbd_put_keycode(keycode | 0x80);
    else
        kbd_put_keycode(keycode & 0x7f);
}

static void gtk2_update_caption(void)
{
    char buf[1024];
    strcpy(buf, "QEMU");
    if (!vm_running) {
        strcat(buf, " [Stopped]");
    }
    if (gui_grab) {
        strcat(buf, " - Press Ctrl-Alt to exit grab");
    }
    gtk_window_set_title(GTK_WINDOW(screen), buf);
}

static void gtk2_grab_start(void)
{
    GdkCursor *cur = NULL; /* ideally we'd set an invisble cursor here */
    guint events;
    GdkModifierType state; /* dummy var */
    events = GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | 
GDK_SCROLL_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK;
    if (grab_with_sdl) {
        gdk_pointer_grab(screen->window, TRUE, events, screen->window, cur, 
GDK_CURRENT_TIME);
        gdk_keyboard_grab(screen->window, TRUE, GDK_CURRENT_TIME);
    }
    /* do a dummy read to avoid moving mouse - set ox and oy to stay in sync */
    gdk_window_get_pointer(screen->window, &ox, &oy, &state);
    gui_grab = 1;
    gtk2_update_caption();
}

static void gtk2_grab_end(void)
{
    if (grab_with_sdl) {
        gdk_pointer_ungrab(GDK_CURRENT_TIME);
        gdk_keyboard_ungrab(GDK_CURRENT_TIME);
    }
    gui_grab = 0;
    gtk2_update_caption();
}

static gboolean gtk2_send_mouse_scroll(GtkWidget *wid, GdkEventScroll *ev)
{
    int x, y, dx, dy, dz, state, buttons;
    if (gui_grab)
    {

    x = ev->x;
    y = ev->y;
    state = ev->state;
    buttons = 0;
    dx = x - ox;
    dy = y - oy;
    ox = x;
    oy = y;
    buttons = 0;
    if ((state & GDK_BUTTON1_MASK))
        buttons |= MOUSE_EVENT_LBUTTON;
    if ((state & GDK_BUTTON3_MASK))
        buttons |= MOUSE_EVENT_RBUTTON;
    if ((state & GDK_BUTTON2_MASK))
        buttons |= MOUSE_EVENT_MBUTTON;
    /* test wheel - copied from Sebastien Bechet's gtk.c */
    dz = 0;
    if ((state & GDK_BUTTON4_MASK) || ev->direction == GDK_SCROLL_UP)
        dz--;
    if ((state & GDK_BUTTON5_MASK) || ev->direction == GDK_SCROLL_DOWN)
        dz++;
    kbd_mouse_event(dx, dy, dz, buttons);

    }
    return TRUE;
}

static gboolean gtk2_send_mouse_button(GtkWidget *wid, GdkEventButton *ev)
{
    int x, y, dx, dy, dz, state, buttons;
    if (gui_grab)
    {

    x = ev->x;
    y = ev->y;
    state = ev->state;
    buttons = 0;
    dx = x - ox;
    dy = y - oy;
    ox = x;
    oy = y;
    buttons = 0;
    if ((state & GDK_BUTTON1_MASK) || ev->button == 1)
        buttons |= MOUSE_EVENT_LBUTTON;
    if ((state & GDK_BUTTON3_MASK) || ev->button == 3)
        buttons |= MOUSE_EVENT_RBUTTON;
    if ((state & GDK_BUTTON2_MASK) || ev->button == 2)
        buttons |= MOUSE_EVENT_MBUTTON;
    /* XXX: test wheel */
    dz = 0;
    if ((state & GDK_BUTTON4_MASK) || ev->button == 4)
        dz--;
    if ((state & GDK_BUTTON5_MASK) || ev->button == 5)
        dz++;
    kbd_mouse_event(dx, dy, dz, buttons);

    }
    else
    {

    if ((ev->state & GDK_BUTTON1_MASK) && ev->type == GDK_BUTTON_PRESS)
    {
        /* start grabbing all events */
        gtk2_grab_start();
    }

    }
    return TRUE;
}

static gboolean gtk2_send_mouse_move(GtkWidget *wid, GdkEventMotion *ev)
{
    int x, y, dx, dy, dz, state, buttons;
    if (gui_grab)
    {

    if (ev->is_hint)
    {
        gdk_window_get_pointer(ev->window, &x, &y, (GdkModifierType*)&state);
    }
    else
    {
        x = ev->x;
        y = ev->y;
        state = ev->state;
    }
    dx = x - ox;
    dy = y - oy;
    ox = x;
    oy = y;
    buttons = 0;
    if (state & GDK_BUTTON1_MASK)
        buttons |= MOUSE_EVENT_LBUTTON;
    if (state & GDK_BUTTON3_MASK)
        buttons |= MOUSE_EVENT_RBUTTON;
    if (state & GDK_BUTTON2_MASK)
        buttons |= MOUSE_EVENT_MBUTTON;
    /* XXX: test wheel */
    dz = 0;
    if (state & GDK_BUTTON4_MASK)
        dz--;
    if (state & GDK_BUTTON5_MASK)
        dz++;
    kbd_mouse_event(dx, dy, dz, buttons);

    }
    return TRUE;
}

static void toggle_full_screen(DisplayState *ds)
{
    gui_fullscreen = !gui_fullscreen;
    gtk2_resize(ds, image->width, image->height);
    if (gui_fullscreen) {
        gui_saved_grab = gui_grab;
        saved_grab_with_sdl = grab_with_sdl;
        grab_with_sdl = 1;
        gtk2_grab_start();
    } else {
        if (!gui_saved_grab || !saved_grab_with_sdl)
            gtk2_grab_end();
        grab_with_sdl = saved_grab_with_sdl;
    }
    vga_invalidate_display();
    vga_update_display();
}

static gboolean gtk2_key_press(GtkWidget *wid, GdkEventKey *ev, DisplayState 
*ds)
{
        int mod_state;
            if (ev->type == GDK_KEY_PRESS) {
                mod_state = (gtk2_GetModState(ev) & (int)gui_grab_code) == 
(int)gui_grab_code;
                gui_key_modifier_pressed = mod_state;
                if (gui_key_modifier_pressed) {
                    int keycode;
                    keycode = gtk2_keyevent_to_keycode(ev);
                    switch(keycode) {
                    case 0x21: /* 'f' key on US keyboard */
                        toggle_full_screen(ds);
                        gui_keysym = 1;
                        break;
                    case 0x02 ... 0x0a: /* '1' to '9' keys */ 
                        console_select(keycode - 0x02);
                        if (is_active_console(vga_console)) {
                            /* tell the vga console to redisplay itself */
                            vga_invalidate_display();
                        } else {
                            /* display grab if going to a text console */
                            if (gui_grab)
                                gtk2_grab_end();
                        }
                        gui_keysym = 1;
                        break;
                    default:
                        break;
                    }
                } else if (!is_active_console(vga_console)) {
                    int keysym;
                    keysym = 0;
                    if (ev->state & GDK_CONTROL_MASK) {
                        switch(ev->keyval) {
                        case GDK_Up: keysym = QEMU_KEY_CTRL_UP; break;
                        case GDK_Down: keysym = QEMU_KEY_CTRL_DOWN; break;
                        case GDK_Left: keysym = QEMU_KEY_CTRL_LEFT; break;
                        case GDK_Right: keysym = QEMU_KEY_CTRL_RIGHT; break;
                        case GDK_Home: keysym = QEMU_KEY_CTRL_HOME; break;
                        case GDK_End: keysym = QEMU_KEY_CTRL_END; break;
                        case GDK_Page_Up: keysym = QEMU_KEY_CTRL_PAGEUP; break;
                        case GDK_Page_Down: keysym = QEMU_KEY_CTRL_PAGEDOWN; 
break;
                        default: break;
                        }
                    } else {
                        switch(ev->keyval) {
                        case GDK_Up: keysym = QEMU_KEY_UP; break;
                        case GDK_Down: keysym = QEMU_KEY_DOWN; break;
                        case GDK_Left: keysym = QEMU_KEY_LEFT; break;
                        case GDK_Right: keysym = QEMU_KEY_RIGHT; break;
                        case GDK_Home: keysym = QEMU_KEY_HOME; break;
                        case GDK_End: keysym = QEMU_KEY_END; break;
                        case GDK_Page_Up: keysym = QEMU_KEY_PAGEUP; break;
                        case GDK_Page_Down: keysym = QEMU_KEY_PAGEDOWN; break;
                        case GDK_BackSpace: keysym = QEMU_KEY_BACKSPACE; break;
                        case GDK_Delete: keysym = QEMU_KEY_DELETE; break;
                        default: break;
                        }
                    }
                    if (keysym) {
                        kbd_put_keysym(keysym);
                    } /*else if (ev->key.keysym.unicode != 0) {
                        kbd_put_keysym(ev->key.keysym.unicode);
                    }*/
                }
            } else if (ev->type == GDK_KEY_RELEASE) {
                mod_state = (gtk2_GetModState(ev) & gui_grab_code);
                if (!mod_state) {
                    if (gui_key_modifier_pressed) {
                        if (gui_keysym == 0) {
                            /* exit/enter grab if pressing Ctrl-Alt */
                            if (!gui_grab)
                                gtk2_grab_start();
                            else
                                gtk2_grab_end();
                            /* SDL does not send back all the
                               modifiers key, so we must correct it */
                            reset_keys();
                            return TRUE;
                        }
                        gui_key_modifier_pressed = 0;
                        gui_keysym = 0;
                    }
                }
            }
            if (is_active_console(vga_console)) 
                gtk2_process_key(ev);
        return TRUE;
}

static void gtk2_refresh(DisplayState *ds)
{
    if (last_vm_running != vm_running) {
        last_vm_running = vm_running;
        gtk2_update_caption();
    }
    if (ds->data != image->mem)
    {
        printf("Oops!\n");
        ds->data = image->mem;
    }

    if (is_active_console(vga_console))                                         
        vga_update_display();                                                   
    while (gtk_events_pending())
        gtk_main_iteration();
}

static void gtk2_cleanup(void) 
{
    gtk_main_quit();
}

static gboolean gtk2_deletewin(void)
{
    /* how do we signal qemu that its time to shut itself off? this is the 
place that we hook to trap attempts to close the main qemu window - for now 
just ignore them */
    //qemu_system_shutdown_request();
    //return FALSE;
    return TRUE;
}

static void gtk2_destroy(void)
{
    /* ideally we would call a hook here so qemu could clean itself up */
    gtk2_cleanup();
}

void gtk2_display_init(DisplayState *ds, int full_screen)
{
    int events;

#if defined(__APPLE__)
    /* always use generic keymaps */
    if (!keyboard_layout)
        keyboard_layout = "en-us";
#endif
    if(keyboard_layout) {
        kbd_layout = init_keyboard_layout(keyboard_layout);
        if (!kbd_layout)
            exit(1);
    }

    if (!gtk_init_check (0,NULL))
    {
        fprintf(stderr, "Could not load GTK\n");
        exit(0);
    }

/* note: adding GDK_DRAG_* and GDK_DROP_* would provide a mechanism for 
supporting drag and drop between host and guest */
    events = GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK | 
GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK 
| GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_ENTER_NOTIFY_MASK | 
GDK_LEAVE_NOTIFY_MASK | GDK_FOCUS_CHANGE_MASK | GDK_SCROLL_MASK | 
GDK_STRUCTURE_MASK;

    screen = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_widget_set_events(screen, events);
    gtk_window_set_default_size(GTK_WINDOW(screen), 720, 400);

    g_signal_connect(G_OBJECT(screen), "delete_event", 
G_CALLBACK(gtk2_deletewin), NULL);
    g_signal_connect(G_OBJECT(screen), "destroy", G_CALLBACK(gtk2_destroy), 
NULL);
    gtk_container_set_border_width(GTK_CONTAINER(screen), 10);

    gtk_signal_connect(GTK_OBJECT(screen), "expose_event", (GtkSignalFunc) 
gtk2_expose, NULL);
    gtk_signal_connect(GTK_OBJECT(screen), "configure_event", (GtkSignalFunc) 
gtk2_config, ds);
    gtk_signal_connect(GTK_OBJECT(screen), "motion_notify_event", 
(GtkSignalFunc) gtk2_send_mouse_move, NULL);
    gtk_signal_connect(GTK_OBJECT(screen), "button_press_event", 
(GtkSignalFunc) gtk2_send_mouse_button, NULL);
    gtk_signal_connect(GTK_OBJECT(screen), "button_release_event", 
(GtkSignalFunc) gtk2_send_mouse_button, NULL);
    gtk_signal_connect(GTK_OBJECT(screen), "scroll_event", (GtkSignalFunc) 
gtk2_send_mouse_scroll, NULL);
    gtk_signal_connect(GTK_OBJECT(screen), "key_press_event", (GtkSignalFunc) 
gtk2_key_press, ds);
    gtk_signal_connect(GTK_OBJECT(screen), "key_release_event", (GtkSignalFunc) 
gtk2_key_press, ds);

    ds->dpy_update = gtk2_update;
    ds->dpy_resize = gtk2_resize;
    ds->dpy_refresh = gtk2_refresh;

    gtk2_resize(ds, 720, 400);
    gtk2_update_caption();
    gui_grab = 0;

    gtk_widget_show(screen);
    if (full_screen) {
        gui_fullscreen = 1;
        gui_fullscreen_initial_grab = 1;
        gtk2_grab_start();
    }
}
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