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qemu-e2k
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ui: add basic GTK gui (v5) 

This is minimalistic and just contains the basic widget infrastructure.  The GUI
consists of a menu and a GtkNotebook.  To start with, the notebook has its tabs
hidden which provides a UI that looks very similar to SDL with the exception of
the menu bar.

The menu bar allows a user to toggle the visibility of the tabs.  Cairo is used
for rendering.

I used gtk-vnc as a reference.  gtk-vnc solves the same basic problems as QEMU
since it was originally written as a remote display for QEMU.  So for the most
part, the approach to rendering and keyboard handling should be pretty solid for
GTK.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1361367806-4599-4-git-send-email-aliguori@us.ibm.com
This commit is contained in:
Anthony Liguori 2013-02-20 07:43:20 -06:00
parent d82831dbc5
commit a4ccabcf6d
5 changed files with 615 additions and 0 deletions
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31
configure vendored
View File

@ -226,6 +226,7 @@ coroutine=""
seccomp=""
glusterfs=""
virtio_blk_data_plane=""
gtk=""
# parse CC options first
for opt do
@ -897,6 +898,10 @@ for opt do
;;
--enable-virtio-blk-data-plane) virtio_blk_data_plane="yes"
;;
--disable-gtk) gtk="no"
;;
--enable-gtk) gtk="yes"
;;
*) echo "ERROR: unknown option $opt"; show_help="yes"
;;
esac
@ -1635,6 +1640,26 @@ if test "$sparse" != "no" ; then
fi
fi
##########################################
# GTK probe
if test "$gtk" != "no"; then
if $pkg_config gtk+-2.0 --modversion >/dev/null 2>/dev/null && \
$pkg_config vte --modversion >/dev/null 2>/dev/null; then
gtk_cflags=`$pkg_config --cflags gtk+-2.0 2>/dev/null`
gtk_libs=`$pkg_config --libs gtk+-2.0 2>/dev/null`
vte_cflags=`$pkg_config --cflags vte 2>/dev/null`
vte_libs=`$pkg_config --libs vte 2>/dev/null`
libs_softmmu="$gtk_libs $vte_libs $libs_softmmu"
gtk="yes"
else
if test "$gtk" = "yes" ; then
feature_not_found "gtk"
fi
gtk="no"
fi
fi
##########################################
# SDL probe
@ -3301,6 +3326,7 @@ if test "$darwin" = "yes" ; then
fi
echo "pixman $pixman"
echo "SDL support $sdl"
echo "GTK support $gtk"
echo "curses support $curses"
echo "curl support $curl"
echo "mingw32 support $mingw32"
@ -3591,6 +3617,11 @@ if test "$bluez" = "yes" ; then
echo "BLUEZ_CFLAGS=$bluez_cflags" >> $config_host_mak
fi
echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
if test "$gtk" = "yes" ; then
echo "CONFIG_GTK=y" >> $config_host_mak
echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
fi
if test "$xen" = "yes" ; then
echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak

1
include/sysemu/sysemu.h
View File

@ -89,6 +89,7 @@ typedef enum DisplayType
DT_DEFAULT,
DT_CURSES,
DT_SDL,
DT_GTK,
DT_NOGRAPHIC,
DT_NONE,
} DisplayType;

4
include/ui/console.h
View File

@ -487,4 +487,8 @@ void curses_display_init(DisplayState *ds, int full_screen);
int index_from_key(const char *key);
int index_from_keycode(int code);
/* gtk.c */
void early_gtk_display_init(void);
void gtk_display_init(DisplayState *ds);
#endif

3
ui/Makefile.objs
View File

@ -13,7 +13,10 @@ common-obj-$(CONFIG_SDL) += sdl.o sdl_zoom.o x_keymap.o
common-obj-$(CONFIG_COCOA) += cocoa.o
common-obj-$(CONFIG_CURSES) += curses.o
common-obj-$(CONFIG_VNC) += $(vnc-obj-y)
common-obj-$(CONFIG_GTK) += gtk.o
$(obj)/sdl.o $(obj)/sdl_zoom.o: QEMU_CFLAGS += $(SDL_CFLAGS)
$(obj)/cocoa.o: $(SRC_PATH)/$(obj)/cocoa.m
$(obj)/gtk.o: QEMU_CFLAGS += $(GTK_CFLAGS) $(VTE_CFLAGS)

576
ui/gtk.c Normal file
View File

@ -0,0 +1,576 @@
/*
* GTK UI
*
* Copyright IBM, Corp. 2012
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
* Portions from gtk-vnc:
*
* GTK VNC Widget
*
* Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>
* Copyright (C) 2009-2010 Daniel P. Berrange <dan@berrange.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.0 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <vte/vte.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/wait.h>
#include <pty.h>
#include <math.h>
#include "qemu-common.h"
#include "ui/console.h"
#include "sysemu/sysemu.h"
#include "qmp-commands.h"
#include "x_keymap.h"
#include "keymaps.h"
//#define DEBUG_GTK
#ifdef DEBUG_GTK
#define DPRINTF(fmt, ...) printf(fmt, ## __VA_ARGS__)
#else
#define DPRINTF(fmt, ...) do { } while (0)
#endif
typedef struct VirtualConsole
{
GtkWidget *menu_item;
GtkWidget *terminal;
GtkWidget *scrolled_window;
CharDriverState *chr;
int fd;
} VirtualConsole;
typedef struct GtkDisplayState
{
GtkWidget *window;
GtkWidget *menu_bar;
GtkWidget *file_menu_item;
GtkWidget *file_menu;
GtkWidget *quit_item;
GtkWidget *view_menu_item;
GtkWidget *view_menu;
GtkWidget *vga_item;
GtkWidget *show_tabs_item;
GtkWidget *vbox;
GtkWidget *notebook;
GtkWidget *drawing_area;
cairo_surface_t *surface;
DisplayChangeListener dcl;
DisplayState *ds;
int button_mask;
int last_x;
int last_y;
double scale_x;
double scale_y;
GdkCursor *null_cursor;
Notifier mouse_mode_notifier;
} GtkDisplayState;
static GtkDisplayState *global_state;
/** Utility Functions **/
static void gd_update_cursor(GtkDisplayState *s, gboolean override)
{
GdkWindow *window;
bool on_vga;
window = gtk_widget_get_window(GTK_WIDGET(s->drawing_area));
on_vga = (gtk_notebook_get_current_page(GTK_NOTEBOOK(s->notebook)) == 0);
if ((override || on_vga) && kbd_mouse_is_absolute()) {
gdk_window_set_cursor(window, s->null_cursor);
} else {
gdk_window_set_cursor(window, NULL);
}
}
static void gd_update_caption(GtkDisplayState *s)
{
const char *status = "";
gchar *title;
if (!runstate_is_running()) {
status = " [Stopped]";
}
if (qemu_name) {
title = g_strdup_printf("QEMU (%s)%s", qemu_name, status);
} else {
title = g_strdup_printf("QEMU%s", status);
}
gtk_window_set_title(GTK_WINDOW(s->window), title);
g_free(title);
}
/** DisplayState Callbacks **/
static void gd_update(DisplayState *ds, int x, int y, int w, int h)
{
GtkDisplayState *s = ds->opaque;
int x1, x2, y1, y2;
DPRINTF("update(x=%d, y=%d, w=%d, h=%d)\n", x, y, w, h);
x1 = floor(x * s->scale_x);
y1 = floor(y * s->scale_y);
x2 = ceil(x * s->scale_x + w * s->scale_x);
y2 = ceil(y * s->scale_y + h * s->scale_y);
gtk_widget_queue_draw_area(s->drawing_area, x1, y1, (x2 - x1), (y2 - y1));
}
static void gd_refresh(DisplayState *ds)
{
vga_hw_update();
}
static void gd_resize(DisplayState *ds)
{
GtkDisplayState *s = ds->opaque;
cairo_format_t kind;
int stride;
DPRINTF("resize(width=%d, height=%d)\n",
ds_get_width(ds), ds_get_height(ds));
if (s->surface) {
cairo_surface_destroy(s->surface);
}
switch (ds->surface->pf.bits_per_pixel) {
case 8:
kind = CAIRO_FORMAT_A8;
break;
case 16:
kind = CAIRO_FORMAT_RGB16_565;
break;
case 32:
kind = CAIRO_FORMAT_RGB24;
break;
default:
g_assert_not_reached();
break;
}
stride = cairo_format_stride_for_width(kind, ds_get_width(ds));
g_assert(ds_get_linesize(ds) == stride);
s->surface = cairo_image_surface_create_for_data(ds_get_data(ds),
kind,
ds_get_width(ds),
ds_get_height(ds),
ds_get_linesize(ds));
gtk_widget_set_size_request(s->drawing_area,
ds_get_width(ds) * s->scale_x,
ds_get_height(ds) * s->scale_y);
}
/** QEMU Events **/
static void gd_change_runstate(void *opaque, int running, RunState state)
{
GtkDisplayState *s = opaque;
gd_update_caption(s);
}
static void gd_mouse_mode_change(Notifier *notify, void *data)
{
gd_update_cursor(container_of(notify, GtkDisplayState, mouse_mode_notifier),
FALSE);
}
/** GTK Events **/
static gboolean gd_window_close(GtkWidget *widget, GdkEvent *event,
void *opaque)
{
GtkDisplayState *s = opaque;
if (!no_quit) {
unregister_displaychangelistener(s->ds, &s->dcl);
qmp_quit(NULL);
return FALSE;
}
return TRUE;
}
static gboolean gd_draw_event(GtkWidget *widget, cairo_t *cr, void *opaque)
{
GtkDisplayState *s = opaque;
int ww, wh;
int fbw, fbh;
fbw = ds_get_width(s->ds);
fbh = ds_get_height(s->ds);
gdk_drawable_get_size(gtk_widget_get_window(widget), &ww, &wh);
cairo_rectangle(cr, 0, 0, ww, wh);
if (ww != fbw || wh != fbh) {
s->scale_x = (double)ww / fbw;
s->scale_y = (double)wh / fbh;
cairo_scale(cr, s->scale_x, s->scale_y);
} else {
s->scale_x = 1.0;
s->scale_y = 1.0;
}
cairo_set_source_surface(cr, s->surface, 0, 0);
cairo_paint(cr);
return TRUE;
}
static gboolean gd_expose_event(GtkWidget *widget, GdkEventExpose *expose,
void *opaque)
{
cairo_t *cr;
gboolean ret;
cr = gdk_cairo_create(gtk_widget_get_window(widget));
cairo_rectangle(cr,
expose->area.x,
expose->area.y,
expose->area.width,
expose->area.height);
cairo_clip(cr);
ret = gd_draw_event(widget, cr, opaque);
cairo_destroy(cr);
return ret;
}
static gboolean gd_motion_event(GtkWidget *widget, GdkEventMotion *motion,
void *opaque)
{
GtkDisplayState *s = opaque;
int dx, dy;
int x, y;
x = motion->x / s->scale_x;
y = motion->y / s->scale_y;
if (kbd_mouse_is_absolute()) {
dx = x * 0x7FFF / (ds_get_width(s->ds) - 1);
dy = y * 0x7FFF / (ds_get_height(s->ds) - 1);
} else if (s->last_x == -1 || s->last_y == -1) {
dx = 0;
dy = 0;
} else {
dx = x - s->last_x;
dy = y - s->last_y;
}
s->last_x = x;
s->last_y = y;
if (kbd_mouse_is_absolute()) {
kbd_mouse_event(dx, dy, 0, s->button_mask);
}
return TRUE;
}
static gboolean gd_button_event(GtkWidget *widget, GdkEventButton *button,
void *opaque)
{
GtkDisplayState *s = opaque;
int dx, dy;
int n;
if (button->button == 1) {
n = 0x01;
} else if (button->button == 2) {
n = 0x04;
} else if (button->button == 3) {
n = 0x02;
} else {
n = 0x00;
}
if (button->type == GDK_BUTTON_PRESS) {
s->button_mask |= n;
} else if (button->type == GDK_BUTTON_RELEASE) {
s->button_mask &= ~n;
}
if (kbd_mouse_is_absolute()) {
dx = s->last_x * 0x7FFF / (ds_get_width(s->ds) - 1);
dy = s->last_y * 0x7FFF / (ds_get_height(s->ds) - 1);
} else {
dx = 0;
dy = 0;
}
kbd_mouse_event(dx, dy, 0, s->button_mask);
return TRUE;
}
static gboolean gd_key_event(GtkWidget *widget, GdkEventKey *key, void *opaque)
{
int gdk_keycode;
int qemu_keycode;
gdk_keycode = key->hardware_keycode;
if (gdk_keycode < 9) {
qemu_keycode = 0;
} else if (gdk_keycode < 97) {
qemu_keycode = gdk_keycode - 8;
} else if (gdk_keycode < 158) {
qemu_keycode = translate_evdev_keycode(gdk_keycode - 97);
} else if (gdk_keycode == 208) { /* Hiragana_Katakana */
qemu_keycode = 0x70;
} else if (gdk_keycode == 211) { /* backslash */
qemu_keycode = 0x73;
} else {
qemu_keycode = 0;
}
DPRINTF("translated GDK keycode %d to QEMU keycode %d (%s)\n",
gdk_keycode, qemu_keycode,
(key->type == GDK_KEY_PRESS) ? "down" : "up");
if (qemu_keycode & SCANCODE_GREY) {
kbd_put_keycode(SCANCODE_EMUL0);
}
if (key->type == GDK_KEY_PRESS) {
kbd_put_keycode(qemu_keycode & SCANCODE_KEYCODEMASK);
} else if (key->type == GDK_KEY_RELEASE) {
kbd_put_keycode(qemu_keycode | SCANCODE_UP);
} else {
g_assert_not_reached();
}
return TRUE;
}
/** Window Menu Actions **/
static void gd_menu_quit(GtkMenuItem *item, void *opaque)
{
qmp_quit(NULL);
}
static void gd_menu_switch_vc(GtkMenuItem *item, void *opaque)
{
GtkDisplayState *s = opaque;
if (gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->vga_item))) {
gtk_notebook_set_current_page(GTK_NOTEBOOK(s->notebook), 0);
}
}
static void gd_menu_show_tabs(GtkMenuItem *item, void *opaque)
{
GtkDisplayState *s = opaque;
if (gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->show_tabs_item))) {
gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), TRUE);
} else {
gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), FALSE);
}
}
static void gd_change_page(GtkNotebook *nb, gpointer arg1, guint arg2,
gpointer data)
{
GtkDisplayState *s = data;
if (!gtk_widget_get_realized(s->notebook)) {
return;
}
gd_update_cursor(s, TRUE);
}
void early_gtk_display_init(void)
{
}
/** Window Creation **/
static void gd_connect_signals(GtkDisplayState *s)
{
g_signal_connect(s->show_tabs_item, "activate",
G_CALLBACK(gd_menu_show_tabs), s);
g_signal_connect(s->window, "delete-event",
G_CALLBACK(gd_window_close), s);
g_signal_connect(s->drawing_area, "expose-event",
G_CALLBACK(gd_expose_event), s);
g_signal_connect(s->drawing_area, "motion-notify-event",
G_CALLBACK(gd_motion_event), s);
g_signal_connect(s->drawing_area, "button-press-event",
G_CALLBACK(gd_button_event), s);
g_signal_connect(s->drawing_area, "button-release-event",
G_CALLBACK(gd_button_event), s);
g_signal_connect(s->drawing_area, "key-press-event",
G_CALLBACK(gd_key_event), s);
g_signal_connect(s->drawing_area, "key-release-event",
G_CALLBACK(gd_key_event), s);
g_signal_connect(s->quit_item, "activate",
G_CALLBACK(gd_menu_quit), s);
g_signal_connect(s->vga_item, "activate",
G_CALLBACK(gd_menu_switch_vc), s);
g_signal_connect(s->notebook, "switch-page",
G_CALLBACK(gd_change_page), s);
}
static void gd_create_menus(GtkDisplayState *s)
{
GtkStockItem item;
GtkAccelGroup *accel_group;
GSList *group = NULL;
GtkWidget *separator;
accel_group = gtk_accel_group_new();
s->file_menu = gtk_menu_new();
gtk_menu_set_accel_group(GTK_MENU(s->file_menu), accel_group);
s->file_menu_item = gtk_menu_item_new_with_mnemonic("_File");
s->quit_item = gtk_image_menu_item_new_from_stock(GTK_STOCK_QUIT, NULL);
gtk_stock_lookup(GTK_STOCK_QUIT, &item);
gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->quit_item),
"<QEMU>/File/Quit");
gtk_accel_map_add_entry("<QEMU>/File/Quit", item.keyval, item.modifier);
s->view_menu = gtk_menu_new();
gtk_menu_set_accel_group(GTK_MENU(s->view_menu), accel_group);
s->view_menu_item = gtk_menu_item_new_with_mnemonic("_View");
separator = gtk_separator_menu_item_new();
gtk_menu_append(GTK_MENU(s->view_menu), separator);
s->vga_item = gtk_radio_menu_item_new_with_mnemonic(group, "_VGA");
group = gtk_radio_menu_item_get_group(GTK_RADIO_MENU_ITEM(s->vga_item));
gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->vga_item),
"<QEMU>/View/VGA");
gtk_accel_map_add_entry("<QEMU>/View/VGA", GDK_KEY_1, GDK_CONTROL_MASK | GDK_MOD1_MASK);
gtk_menu_append(GTK_MENU(s->view_menu), s->vga_item);
separator = gtk_separator_menu_item_new();
gtk_menu_append(GTK_MENU(s->view_menu), separator);
s->show_tabs_item = gtk_check_menu_item_new_with_mnemonic("Show _Tabs");
gtk_menu_append(GTK_MENU(s->view_menu), s->show_tabs_item);
g_object_set_data(G_OBJECT(s->window), "accel_group", accel_group);
gtk_window_add_accel_group(GTK_WINDOW(s->window), accel_group);
gtk_menu_append(GTK_MENU(s->file_menu), s->quit_item);
gtk_menu_item_set_submenu(GTK_MENU_ITEM(s->file_menu_item), s->file_menu);
gtk_menu_shell_append(GTK_MENU_SHELL(s->menu_bar), s->file_menu_item);
gtk_menu_item_set_submenu(GTK_MENU_ITEM(s->view_menu_item), s->view_menu);
gtk_menu_shell_append(GTK_MENU_SHELL(s->menu_bar), s->view_menu_item);
}
void gtk_display_init(DisplayState *ds)
{
GtkDisplayState *s = g_malloc0(sizeof(*s));
gtk_init(NULL, NULL);
ds->opaque = s;
s->ds = ds;
s->dcl.dpy_gfx_update = gd_update;
s->dcl.dpy_gfx_resize = gd_resize;
s->dcl.dpy_refresh = gd_refresh;
s->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
s->vbox = gtk_vbox_new(FALSE, 0);
s->notebook = gtk_notebook_new();
s->drawing_area = gtk_drawing_area_new();
s->menu_bar = gtk_menu_bar_new();
s->scale_x = 1.0;
s->scale_y = 1.0;
s->null_cursor = gdk_cursor_new(GDK_BLANK_CURSOR);
s->mouse_mode_notifier.notify = gd_mouse_mode_change;
qemu_add_mouse_mode_change_notifier(&s->mouse_mode_notifier);
qemu_add_vm_change_state_handler(gd_change_runstate, s);
gtk_notebook_append_page(GTK_NOTEBOOK(s->notebook), s->drawing_area, gtk_label_new("VGA"));
gd_create_menus(s);
gd_connect_signals(s);
gtk_widget_add_events(s->drawing_area,
GDK_POINTER_MOTION_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_BUTTON_MOTION_MASK |
GDK_SCROLL_MASK |
GDK_KEY_PRESS_MASK);
gtk_widget_set_double_buffered(s->drawing_area, FALSE);
gtk_widget_set_can_focus(s->drawing_area, TRUE);
gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), FALSE);
gtk_notebook_set_show_border(GTK_NOTEBOOK(s->notebook), FALSE);
gtk_window_set_resizable(GTK_WINDOW(s->window), FALSE);
gd_update_caption(s);
gtk_box_pack_start(GTK_BOX(s->vbox), s->menu_bar, FALSE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(s->vbox), s->notebook, TRUE, TRUE, 0);
gtk_container_add(GTK_CONTAINER(s->window), s->vbox);
gtk_widget_show_all(s->window);
register_displaychangelistener(ds, &s->dcl);
global_state = s;
}