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authorAnthony Liguori <aliguori@us.ibm.com>2013-02-20 07:43:20 -0600
committerAnthony Liguori <aliguori@us.ibm.com>2013-02-21 16:34:48 -0600
commita4ccabcf6deaeb42c65d5d6d84ba0ceff8003876 (patch)
tree026ef8d21f381dd0aeeab50a84ba166d75fdc851 /ui
parentd82831dbc5471d72785c49b33710436af49bf9ca (diff)
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
Diffstat (limited to 'ui')
-rw-r--r--ui/Makefile.objs3
-rw-r--r--ui/gtk.c576
2 files changed, 579 insertions, 0 deletions
diff --git a/ui/Makefile.objs b/ui/Makefile.objs
index d9db073584..85c50cd89b 100644
--- a/ui/Makefile.objs
+++ b/ui/Makefile.objs
@@ -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)
diff --git a/ui/gtk.c b/ui/gtk.c
new file mode 100644
index 0000000000..85e7999bce
--- /dev/null
+++ b/ui/gtk.c
@@ -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;
+}