xref: /openbmc/qemu/ui/gtk.c (revision e4370165)
1 /*
2  * GTK UI
3  *
4  * Copyright IBM, Corp. 2012
5  *
6  * Authors:
7  *  Anthony Liguori   <aliguori@us.ibm.com>
8  *
9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
10  * See the COPYING file in the top-level directory.
11  *
12  * Portions from gtk-vnc:
13  *
14  * GTK VNC Widget
15  *
16  * Copyright (C) 2006  Anthony Liguori <anthony@codemonkey.ws>
17  * Copyright (C) 2009-2010 Daniel P. Berrange <dan@berrange.com>
18  *
19  * This library is free software; you can redistribute it and/or
20  * modify it under the terms of the GNU Lesser General Public
21  * License as published by the Free Software Foundation; either
22  * version 2.0 of the License, or (at your option) any later version.
23  *
24  * This library is distributed in the hope that it will be useful,
25  * but WITHOUT ANY WARRANTY; without even the implied warranty of
26  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
27  * Lesser General Public License for more details.
28  *
29  * You should have received a copy of the GNU Lesser General Public
30  * License along with this library; if not, write to the Free Software
31  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
32  */
33 
34 #define GETTEXT_PACKAGE "qemu"
35 #define LOCALEDIR "po"
36 
37 #include "qemu/osdep.h"
38 #include "qemu-common.h"
39 #include "qemu/cutils.h"
40 
41 #include "ui/console.h"
42 #include "ui/gtk.h"
43 
44 #include <glib/gi18n.h>
45 #include <locale.h>
46 #if defined(CONFIG_VTE)
47 #include <vte/vte.h>
48 #endif
49 #include <math.h>
50 
51 #include "trace.h"
52 #include "ui/input.h"
53 #include "sysemu/sysemu.h"
54 #include "qmp-commands.h"
55 #include "x_keymap.h"
56 #include "keymaps.h"
57 #include "sysemu/char.h"
58 #include "qom/object.h"
59 
60 #define MAX_VCS 10
61 #define VC_WINDOW_X_MIN  320
62 #define VC_WINDOW_Y_MIN  240
63 #define VC_TERM_X_MIN     80
64 #define VC_TERM_Y_MIN     25
65 #define VC_SCALE_MIN    0.25
66 #define VC_SCALE_STEP   0.25
67 
68 #if !defined(CONFIG_VTE)
69 # define VTE_CHECK_VERSION(a, b, c) 0
70 #endif
71 
72 #if defined(CONFIG_VTE) && !GTK_CHECK_VERSION(3, 0, 0)
73 /*
74  * The gtk2 vte terminal widget seriously messes up the window resize
75  * for some reason.  You basically can't make the qemu window smaller
76  * any more because the toplevel window geoemtry hints are overridden.
77  *
78  * Workaround that by hiding all vte widgets, except the one in the
79  * current tab.
80  *
81  * Luckily everything works smooth in gtk3.
82  */
83 # define VTE_RESIZE_HACK 1
84 #endif
85 
86 #if !GTK_CHECK_VERSION(2, 20, 0)
87 #define gtk_widget_get_realized(widget) GTK_WIDGET_REALIZED(widget)
88 #endif
89 
90 #ifndef GDK_IS_X11_DISPLAY
91 #define GDK_IS_X11_DISPLAY(dpy) (dpy == dpy)
92 #endif
93 #ifndef GDK_IS_WIN32_DISPLAY
94 #define GDK_IS_WIN32_DISPLAY(dpy) (dpy == dpy)
95 #endif
96 
97 #ifndef GDK_KEY_0
98 #define GDK_KEY_0 GDK_0
99 #define GDK_KEY_1 GDK_1
100 #define GDK_KEY_2 GDK_2
101 #define GDK_KEY_f GDK_f
102 #define GDK_KEY_g GDK_g
103 #define GDK_KEY_q GDK_q
104 #define GDK_KEY_plus GDK_plus
105 #define GDK_KEY_minus GDK_minus
106 #define GDK_KEY_Pause GDK_Pause
107 #endif
108 
109 /* Some older mingw versions lack this constant or have
110  * it conditionally defined */
111 #ifdef _WIN32
112 # ifndef MAPVK_VK_TO_VSC
113 #  define MAPVK_VK_TO_VSC 0
114 # endif
115 #endif
116 
117 
118 #define HOTKEY_MODIFIERS        (GDK_CONTROL_MASK | GDK_MOD1_MASK)
119 
120 static const int modifier_keycode[] = {
121     /* shift, control, alt keys, meta keys, both left & right */
122     0x2a, 0x36, 0x1d, 0x9d, 0x38, 0xb8, 0xdb, 0xdd,
123 };
124 
125 struct GtkDisplayState {
126     GtkWidget *window;
127 
128     GtkWidget *menu_bar;
129 
130     GtkAccelGroup *accel_group;
131 
132     GtkWidget *machine_menu_item;
133     GtkWidget *machine_menu;
134     GtkWidget *pause_item;
135     GtkWidget *reset_item;
136     GtkWidget *powerdown_item;
137     GtkWidget *quit_item;
138 
139     GtkWidget *view_menu_item;
140     GtkWidget *view_menu;
141     GtkWidget *full_screen_item;
142     GtkWidget *copy_item;
143     GtkWidget *zoom_in_item;
144     GtkWidget *zoom_out_item;
145     GtkWidget *zoom_fixed_item;
146     GtkWidget *zoom_fit_item;
147     GtkWidget *grab_item;
148     GtkWidget *grab_on_hover_item;
149 
150     int nb_vcs;
151     VirtualConsole vc[MAX_VCS];
152 
153     GtkWidget *show_tabs_item;
154     GtkWidget *untabify_item;
155 
156     GtkWidget *vbox;
157     GtkWidget *notebook;
158     int button_mask;
159     gboolean last_set;
160     int last_x;
161     int last_y;
162     int grab_x_root;
163     int grab_y_root;
164     VirtualConsole *kbd_owner;
165     VirtualConsole *ptr_owner;
166 
167     gboolean full_screen;
168 
169     GdkCursor *null_cursor;
170     Notifier mouse_mode_notifier;
171     gboolean free_scale;
172 
173     bool external_pause_update;
174 
175     bool modifier_pressed[ARRAY_SIZE(modifier_keycode)];
176     bool has_evdev;
177     bool ignore_keys;
178 };
179 
180 static void gd_grab_pointer(VirtualConsole *vc, const char *reason);
181 static void gd_ungrab_pointer(GtkDisplayState *s);
182 static void gd_grab_keyboard(VirtualConsole *vc, const char *reason);
183 static void gd_ungrab_keyboard(GtkDisplayState *s);
184 
185 /** Utility Functions **/
186 
187 static VirtualConsole *gd_vc_find_by_menu(GtkDisplayState *s)
188 {
189     VirtualConsole *vc;
190     gint i;
191 
192     for (i = 0; i < s->nb_vcs; i++) {
193         vc = &s->vc[i];
194         if (gtk_check_menu_item_get_active
195             (GTK_CHECK_MENU_ITEM(vc->menu_item))) {
196             return vc;
197         }
198     }
199     return NULL;
200 }
201 
202 static VirtualConsole *gd_vc_find_by_page(GtkDisplayState *s, gint page)
203 {
204     VirtualConsole *vc;
205     gint i, p;
206 
207     for (i = 0; i < s->nb_vcs; i++) {
208         vc = &s->vc[i];
209         p = gtk_notebook_page_num(GTK_NOTEBOOK(s->notebook), vc->tab_item);
210         if (p == page) {
211             return vc;
212         }
213     }
214     return NULL;
215 }
216 
217 static VirtualConsole *gd_vc_find_current(GtkDisplayState *s)
218 {
219     gint page;
220 
221     page = gtk_notebook_get_current_page(GTK_NOTEBOOK(s->notebook));
222     return gd_vc_find_by_page(s, page);
223 }
224 
225 static bool gd_is_grab_active(GtkDisplayState *s)
226 {
227     return gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->grab_item));
228 }
229 
230 static bool gd_grab_on_hover(GtkDisplayState *s)
231 {
232     return gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->grab_on_hover_item));
233 }
234 
235 static void gd_update_cursor(VirtualConsole *vc)
236 {
237     GtkDisplayState *s = vc->s;
238     GdkWindow *window;
239 
240     if (vc->type != GD_VC_GFX ||
241         !qemu_console_is_graphic(vc->gfx.dcl.con)) {
242         return;
243     }
244 
245     if (!gtk_widget_get_realized(vc->gfx.drawing_area)) {
246         return;
247     }
248 
249     window = gtk_widget_get_window(GTK_WIDGET(vc->gfx.drawing_area));
250     if (s->full_screen || qemu_input_is_absolute() || s->ptr_owner == vc) {
251         gdk_window_set_cursor(window, s->null_cursor);
252     } else {
253         gdk_window_set_cursor(window, NULL);
254     }
255 }
256 
257 static void gd_update_caption(GtkDisplayState *s)
258 {
259     const char *status = "";
260     gchar *prefix;
261     gchar *title;
262     const char *grab = "";
263     bool is_paused = !runstate_is_running();
264     int i;
265 
266     if (qemu_name) {
267         prefix = g_strdup_printf("QEMU (%s)", qemu_name);
268     } else {
269         prefix = g_strdup_printf("QEMU");
270     }
271 
272     if (s->ptr_owner != NULL &&
273         s->ptr_owner->window == NULL) {
274         grab = _(" - Press Ctrl+Alt+G to release grab");
275     }
276 
277     if (is_paused) {
278         status = _(" [Paused]");
279     }
280     s->external_pause_update = true;
281     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->pause_item),
282                                    is_paused);
283     s->external_pause_update = false;
284 
285     title = g_strdup_printf("%s%s%s", prefix, status, grab);
286     gtk_window_set_title(GTK_WINDOW(s->window), title);
287     g_free(title);
288 
289     for (i = 0; i < s->nb_vcs; i++) {
290         VirtualConsole *vc = &s->vc[i];
291 
292         if (!vc->window) {
293             continue;
294         }
295         title = g_strdup_printf("%s: %s%s%s", prefix, vc->label,
296                                 vc == s->kbd_owner ? " +kbd" : "",
297                                 vc == s->ptr_owner ? " +ptr" : "");
298         gtk_window_set_title(GTK_WINDOW(vc->window), title);
299         g_free(title);
300     }
301 
302     g_free(prefix);
303 }
304 
305 static void gd_update_geometry_hints(VirtualConsole *vc)
306 {
307     GtkDisplayState *s = vc->s;
308     GdkWindowHints mask = 0;
309     GdkGeometry geo = {};
310     GtkWidget *geo_widget = NULL;
311     GtkWindow *geo_window;
312 
313     if (vc->type == GD_VC_GFX) {
314         if (!vc->gfx.ds) {
315             return;
316         }
317         if (s->free_scale) {
318             geo.min_width  = surface_width(vc->gfx.ds) * VC_SCALE_MIN;
319             geo.min_height = surface_height(vc->gfx.ds) * VC_SCALE_MIN;
320             mask |= GDK_HINT_MIN_SIZE;
321         } else {
322             geo.min_width  = surface_width(vc->gfx.ds) * vc->gfx.scale_x;
323             geo.min_height = surface_height(vc->gfx.ds) * vc->gfx.scale_y;
324             mask |= GDK_HINT_MIN_SIZE;
325         }
326         geo_widget = vc->gfx.drawing_area;
327         gtk_widget_set_size_request(geo_widget, geo.min_width, geo.min_height);
328 
329 #if defined(CONFIG_VTE)
330     } else if (vc->type == GD_VC_VTE) {
331         VteTerminal *term = VTE_TERMINAL(vc->vte.terminal);
332         GtkBorder padding = { 0 };
333 
334 #if VTE_CHECK_VERSION(0, 37, 0)
335         gtk_style_context_get_padding(
336                 gtk_widget_get_style_context(vc->vte.terminal),
337                 gtk_widget_get_state_flags(vc->vte.terminal),
338                 &padding);
339 #else
340         {
341             GtkBorder *ib = NULL;
342             gtk_widget_style_get(vc->vte.terminal, "inner-border", &ib, NULL);
343             if (ib) {
344                 padding = *ib;
345                 gtk_border_free(ib);
346             }
347         }
348 #endif
349 
350         geo.width_inc  = vte_terminal_get_char_width(term);
351         geo.height_inc = vte_terminal_get_char_height(term);
352         mask |= GDK_HINT_RESIZE_INC;
353         geo.base_width  = geo.width_inc;
354         geo.base_height = geo.height_inc;
355         mask |= GDK_HINT_BASE_SIZE;
356         geo.min_width  = geo.width_inc * VC_TERM_X_MIN;
357         geo.min_height = geo.height_inc * VC_TERM_Y_MIN;
358         mask |= GDK_HINT_MIN_SIZE;
359 
360         geo.base_width  += padding.left + padding.right;
361         geo.base_height += padding.top + padding.bottom;
362         geo.min_width   += padding.left + padding.right;
363         geo.min_height  += padding.top + padding.bottom;
364         geo_widget = vc->vte.terminal;
365 #endif
366     }
367 
368     geo_window = GTK_WINDOW(vc->window ? vc->window : s->window);
369     gtk_window_set_geometry_hints(geo_window, geo_widget, &geo, mask);
370 }
371 
372 void gd_update_windowsize(VirtualConsole *vc)
373 {
374     GtkDisplayState *s = vc->s;
375 
376     gd_update_geometry_hints(vc);
377 
378     if (vc->type == GD_VC_GFX && !s->full_screen && !s->free_scale) {
379         gtk_window_resize(GTK_WINDOW(vc->window ? vc->window : s->window),
380                           VC_WINDOW_X_MIN, VC_WINDOW_Y_MIN);
381     }
382 }
383 
384 static void gd_update_full_redraw(VirtualConsole *vc)
385 {
386     GtkWidget *area = vc->gfx.drawing_area;
387     int ww, wh;
388     gdk_drawable_get_size(gtk_widget_get_window(area), &ww, &wh);
389 #if defined(CONFIG_GTK_GL)
390     if (vc->gfx.gls) {
391         gtk_gl_area_queue_render(GTK_GL_AREA(vc->gfx.drawing_area));
392         return;
393     }
394 #endif
395     gtk_widget_queue_draw_area(area, 0, 0, ww, wh);
396 }
397 
398 static void gtk_release_modifiers(GtkDisplayState *s)
399 {
400     VirtualConsole *vc = gd_vc_find_current(s);
401     int i, keycode;
402 
403     if (vc->type != GD_VC_GFX ||
404         !qemu_console_is_graphic(vc->gfx.dcl.con)) {
405         return;
406     }
407     for (i = 0; i < ARRAY_SIZE(modifier_keycode); i++) {
408         keycode = modifier_keycode[i];
409         if (!s->modifier_pressed[i]) {
410             continue;
411         }
412         qemu_input_event_send_key_number(vc->gfx.dcl.con, keycode, false);
413         s->modifier_pressed[i] = false;
414     }
415 }
416 
417 static void gd_widget_reparent(GtkWidget *from, GtkWidget *to,
418                                GtkWidget *widget)
419 {
420     g_object_ref(G_OBJECT(widget));
421     gtk_container_remove(GTK_CONTAINER(from), widget);
422     gtk_container_add(GTK_CONTAINER(to), widget);
423     g_object_unref(G_OBJECT(widget));
424 }
425 
426 /** DisplayState Callbacks **/
427 
428 static void gd_update(DisplayChangeListener *dcl,
429                       int x, int y, int w, int h)
430 {
431     VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
432     GdkWindow *win;
433     int x1, x2, y1, y2;
434     int mx, my;
435     int fbw, fbh;
436     int ww, wh;
437 
438     trace_gd_update(vc->label, x, y, w, h);
439 
440     if (!gtk_widget_get_realized(vc->gfx.drawing_area)) {
441         return;
442     }
443 
444     if (vc->gfx.convert) {
445         pixman_image_composite(PIXMAN_OP_SRC, vc->gfx.ds->image,
446                                NULL, vc->gfx.convert,
447                                x, y, 0, 0, x, y, w, h);
448     }
449 
450     x1 = floor(x * vc->gfx.scale_x);
451     y1 = floor(y * vc->gfx.scale_y);
452 
453     x2 = ceil(x * vc->gfx.scale_x + w * vc->gfx.scale_x);
454     y2 = ceil(y * vc->gfx.scale_y + h * vc->gfx.scale_y);
455 
456     fbw = surface_width(vc->gfx.ds) * vc->gfx.scale_x;
457     fbh = surface_height(vc->gfx.ds) * vc->gfx.scale_y;
458 
459     win = gtk_widget_get_window(vc->gfx.drawing_area);
460     if (!win) {
461         return;
462     }
463     gdk_drawable_get_size(win, &ww, &wh);
464 
465     mx = my = 0;
466     if (ww > fbw) {
467         mx = (ww - fbw) / 2;
468     }
469     if (wh > fbh) {
470         my = (wh - fbh) / 2;
471     }
472 
473     gtk_widget_queue_draw_area(vc->gfx.drawing_area,
474                                mx + x1, my + y1, (x2 - x1), (y2 - y1));
475 }
476 
477 static void gd_refresh(DisplayChangeListener *dcl)
478 {
479     graphic_hw_update(dcl->con);
480 }
481 
482 #if GTK_CHECK_VERSION(3, 0, 0)
483 static GdkDevice *gd_get_pointer(GdkDisplay *dpy)
484 {
485 #if GTK_CHECK_VERSION(3, 20, 0)
486     return gdk_seat_get_pointer(gdk_display_get_default_seat(dpy));
487 #else
488     return gdk_device_manager_get_client_pointer(
489         gdk_display_get_device_manager(dpy));
490 #endif
491 }
492 
493 static void gd_mouse_set(DisplayChangeListener *dcl,
494                          int x, int y, int visible)
495 {
496     VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
497     GdkDisplay *dpy;
498     gint x_root, y_root;
499 
500     if (qemu_input_is_absolute()) {
501         return;
502     }
503 
504     dpy = gtk_widget_get_display(vc->gfx.drawing_area);
505     gdk_window_get_root_coords(gtk_widget_get_window(vc->gfx.drawing_area),
506                                x, y, &x_root, &y_root);
507     gdk_device_warp(gd_get_pointer(dpy),
508                     gtk_widget_get_screen(vc->gfx.drawing_area),
509                     x_root, y_root);
510     vc->s->last_x = x;
511     vc->s->last_y = y;
512 }
513 #else
514 static void gd_mouse_set(DisplayChangeListener *dcl,
515                          int x, int y, int visible)
516 {
517     VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
518     gint x_root, y_root;
519 
520     if (qemu_input_is_absolute()) {
521         return;
522     }
523 
524     gdk_window_get_root_coords(gtk_widget_get_window(vc->gfx.drawing_area),
525                                x, y, &x_root, &y_root);
526     gdk_display_warp_pointer(gtk_widget_get_display(vc->gfx.drawing_area),
527                              gtk_widget_get_screen(vc->gfx.drawing_area),
528                              x_root, y_root);
529 }
530 #endif
531 
532 static void gd_cursor_define(DisplayChangeListener *dcl,
533                              QEMUCursor *c)
534 {
535     VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
536     GdkPixbuf *pixbuf;
537     GdkCursor *cursor;
538 
539     if (!gtk_widget_get_realized(vc->gfx.drawing_area)) {
540         return;
541     }
542 
543     pixbuf = gdk_pixbuf_new_from_data((guchar *)(c->data),
544                                       GDK_COLORSPACE_RGB, true, 8,
545                                       c->width, c->height, c->width * 4,
546                                       NULL, NULL);
547     cursor = gdk_cursor_new_from_pixbuf
548         (gtk_widget_get_display(vc->gfx.drawing_area),
549          pixbuf, c->hot_x, c->hot_y);
550     gdk_window_set_cursor(gtk_widget_get_window(vc->gfx.drawing_area), cursor);
551     g_object_unref(pixbuf);
552 #if !GTK_CHECK_VERSION(3, 0, 0)
553     gdk_cursor_unref(cursor);
554 #else
555     g_object_unref(cursor);
556 #endif
557 }
558 
559 static void gd_switch(DisplayChangeListener *dcl,
560                       DisplaySurface *surface)
561 {
562     VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
563     bool resized = true;
564 
565     trace_gd_switch(vc->label,
566                     surface ? surface_width(surface)  : 0,
567                     surface ? surface_height(surface) : 0);
568 
569     if (vc->gfx.surface) {
570         cairo_surface_destroy(vc->gfx.surface);
571         vc->gfx.surface = NULL;
572     }
573     if (vc->gfx.convert) {
574         pixman_image_unref(vc->gfx.convert);
575         vc->gfx.convert = NULL;
576     }
577 
578     if (vc->gfx.ds && surface &&
579         surface_width(vc->gfx.ds) == surface_width(surface) &&
580         surface_height(vc->gfx.ds) == surface_height(surface)) {
581         resized = false;
582     }
583     vc->gfx.ds = surface;
584 
585     if (!surface) {
586         return;
587     }
588 
589     if (surface->format == PIXMAN_x8r8g8b8) {
590         /*
591          * PIXMAN_x8r8g8b8 == CAIRO_FORMAT_RGB24
592          *
593          * No need to convert, use surface directly.  Should be the
594          * common case as this is qemu_default_pixelformat(32) too.
595          */
596         vc->gfx.surface = cairo_image_surface_create_for_data
597             (surface_data(surface),
598              CAIRO_FORMAT_RGB24,
599              surface_width(surface),
600              surface_height(surface),
601              surface_stride(surface));
602     } else {
603         /* Must convert surface, use pixman to do it. */
604         vc->gfx.convert = pixman_image_create_bits(PIXMAN_x8r8g8b8,
605                                                    surface_width(surface),
606                                                    surface_height(surface),
607                                                    NULL, 0);
608         vc->gfx.surface = cairo_image_surface_create_for_data
609             ((void *)pixman_image_get_data(vc->gfx.convert),
610              CAIRO_FORMAT_RGB24,
611              pixman_image_get_width(vc->gfx.convert),
612              pixman_image_get_height(vc->gfx.convert),
613              pixman_image_get_stride(vc->gfx.convert));
614         pixman_image_composite(PIXMAN_OP_SRC, vc->gfx.ds->image,
615                                NULL, vc->gfx.convert,
616                                0, 0, 0, 0, 0, 0,
617                                pixman_image_get_width(vc->gfx.convert),
618                                pixman_image_get_height(vc->gfx.convert));
619     }
620 
621     if (resized) {
622         gd_update_windowsize(vc);
623     } else {
624         gd_update_full_redraw(vc);
625     }
626 }
627 
628 static const DisplayChangeListenerOps dcl_ops = {
629     .dpy_name             = "gtk",
630     .dpy_gfx_update       = gd_update,
631     .dpy_gfx_switch       = gd_switch,
632     .dpy_gfx_check_format = qemu_pixman_check_format,
633     .dpy_refresh          = gd_refresh,
634     .dpy_mouse_set        = gd_mouse_set,
635     .dpy_cursor_define    = gd_cursor_define,
636 };
637 
638 
639 #if defined(CONFIG_OPENGL)
640 
641 /** DisplayState Callbacks (opengl version) **/
642 
643 #if defined(CONFIG_GTK_GL)
644 
645 static const DisplayChangeListenerOps dcl_gl_area_ops = {
646     .dpy_name             = "gtk-egl",
647     .dpy_gfx_update       = gd_gl_area_update,
648     .dpy_gfx_switch       = gd_gl_area_switch,
649     .dpy_gfx_check_format = console_gl_check_format,
650     .dpy_refresh          = gd_gl_area_refresh,
651     .dpy_mouse_set        = gd_mouse_set,
652     .dpy_cursor_define    = gd_cursor_define,
653 
654     .dpy_gl_ctx_create       = gd_gl_area_create_context,
655     .dpy_gl_ctx_destroy      = gd_gl_area_destroy_context,
656     .dpy_gl_ctx_make_current = gd_gl_area_make_current,
657     .dpy_gl_ctx_get_current  = gd_gl_area_get_current_context,
658     .dpy_gl_scanout          = gd_gl_area_scanout,
659     .dpy_gl_update           = gd_gl_area_scanout_flush,
660 };
661 
662 #else
663 
664 static const DisplayChangeListenerOps dcl_egl_ops = {
665     .dpy_name             = "gtk-egl",
666     .dpy_gfx_update       = gd_egl_update,
667     .dpy_gfx_switch       = gd_egl_switch,
668     .dpy_gfx_check_format = console_gl_check_format,
669     .dpy_refresh          = gd_egl_refresh,
670     .dpy_mouse_set        = gd_mouse_set,
671     .dpy_cursor_define    = gd_cursor_define,
672 
673     .dpy_gl_ctx_create       = gd_egl_create_context,
674     .dpy_gl_ctx_destroy      = qemu_egl_destroy_context,
675     .dpy_gl_ctx_make_current = gd_egl_make_current,
676     .dpy_gl_ctx_get_current  = qemu_egl_get_current_context,
677     .dpy_gl_scanout          = gd_egl_scanout,
678     .dpy_gl_update           = gd_egl_scanout_flush,
679 };
680 
681 #endif /* CONFIG_GTK_GL */
682 #endif /* CONFIG_OPENGL */
683 
684 /** QEMU Events **/
685 
686 static void gd_change_runstate(void *opaque, int running, RunState state)
687 {
688     GtkDisplayState *s = opaque;
689 
690     gd_update_caption(s);
691 }
692 
693 static void gd_mouse_mode_change(Notifier *notify, void *data)
694 {
695     GtkDisplayState *s;
696     int i;
697 
698     s = container_of(notify, GtkDisplayState, mouse_mode_notifier);
699     /* release the grab at switching to absolute mode */
700     if (qemu_input_is_absolute() && gd_is_grab_active(s)) {
701         gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
702                                        FALSE);
703     }
704     for (i = 0; i < s->nb_vcs; i++) {
705         VirtualConsole *vc = &s->vc[i];
706         gd_update_cursor(vc);
707     }
708 }
709 
710 /** GTK Events **/
711 
712 static gboolean gd_window_close(GtkWidget *widget, GdkEvent *event,
713                                 void *opaque)
714 {
715     GtkDisplayState *s = opaque;
716     int i;
717 
718     if (!no_quit) {
719         for (i = 0; i < s->nb_vcs; i++) {
720             if (s->vc[i].type != GD_VC_GFX) {
721                 continue;
722             }
723             unregister_displaychangelistener(&s->vc[i].gfx.dcl);
724         }
725         qmp_quit(NULL);
726         return FALSE;
727     }
728 
729     return TRUE;
730 }
731 
732 static void gd_set_ui_info(VirtualConsole *vc, gint width, gint height)
733 {
734     QemuUIInfo info;
735 
736     memset(&info, 0, sizeof(info));
737     info.width = width;
738     info.height = height;
739     dpy_set_ui_info(vc->gfx.dcl.con, &info);
740 }
741 
742 #if defined(CONFIG_GTK_GL)
743 
744 static gboolean gd_render_event(GtkGLArea *area, GdkGLContext *context,
745                                 void *opaque)
746 {
747     VirtualConsole *vc = opaque;
748 
749     if (vc->gfx.gls) {
750         gd_gl_area_draw(vc);
751     }
752     return TRUE;
753 }
754 
755 static void gd_resize_event(GtkGLArea *area,
756                             gint width, gint height, gpointer *opaque)
757 {
758     VirtualConsole *vc = (void *)opaque;
759 
760     gd_set_ui_info(vc, width, height);
761 }
762 
763 #endif
764 
765 static gboolean gd_draw_event(GtkWidget *widget, cairo_t *cr, void *opaque)
766 {
767     VirtualConsole *vc = opaque;
768     GtkDisplayState *s = vc->s;
769     int mx, my;
770     int ww, wh;
771     int fbw, fbh;
772 
773 #if defined(CONFIG_OPENGL)
774     if (vc->gfx.gls) {
775 #if defined(CONFIG_GTK_GL)
776         /* invoke render callback please */
777         return FALSE;
778 #else
779         gd_egl_draw(vc);
780         return TRUE;
781 #endif
782     }
783 #endif
784 
785     if (!gtk_widget_get_realized(widget)) {
786         return FALSE;
787     }
788     if (!vc->gfx.ds) {
789         return FALSE;
790     }
791 
792     fbw = surface_width(vc->gfx.ds);
793     fbh = surface_height(vc->gfx.ds);
794 
795     gdk_drawable_get_size(gtk_widget_get_window(widget), &ww, &wh);
796 
797     if (s->full_screen) {
798         vc->gfx.scale_x = (double)ww / fbw;
799         vc->gfx.scale_y = (double)wh / fbh;
800     } else if (s->free_scale) {
801         double sx, sy;
802 
803         sx = (double)ww / fbw;
804         sy = (double)wh / fbh;
805 
806         vc->gfx.scale_x = vc->gfx.scale_y = MIN(sx, sy);
807     }
808 
809     fbw *= vc->gfx.scale_x;
810     fbh *= vc->gfx.scale_y;
811 
812     mx = my = 0;
813     if (ww > fbw) {
814         mx = (ww - fbw) / 2;
815     }
816     if (wh > fbh) {
817         my = (wh - fbh) / 2;
818     }
819 
820     cairo_rectangle(cr, 0, 0, ww, wh);
821 
822     /* Optionally cut out the inner area where the pixmap
823        will be drawn. This avoids 'flashing' since we're
824        not double-buffering. Note we're using the undocumented
825        behaviour of drawing the rectangle from right to left
826        to cut out the whole */
827     cairo_rectangle(cr, mx + fbw, my,
828                     -1 * fbw, fbh);
829     cairo_fill(cr);
830 
831     cairo_scale(cr, vc->gfx.scale_x, vc->gfx.scale_y);
832     cairo_set_source_surface(cr, vc->gfx.surface,
833                              mx / vc->gfx.scale_x, my / vc->gfx.scale_y);
834     cairo_paint(cr);
835 
836     return TRUE;
837 }
838 
839 #if !GTK_CHECK_VERSION(3, 0, 0)
840 static gboolean gd_expose_event(GtkWidget *widget, GdkEventExpose *expose,
841                                 void *opaque)
842 {
843     cairo_t *cr;
844     gboolean ret;
845 
846     cr = gdk_cairo_create(gtk_widget_get_window(widget));
847     cairo_rectangle(cr,
848                     expose->area.x,
849                     expose->area.y,
850                     expose->area.width,
851                     expose->area.height);
852     cairo_clip(cr);
853 
854     ret = gd_draw_event(widget, cr, opaque);
855 
856     cairo_destroy(cr);
857 
858     return ret;
859 }
860 #endif
861 
862 static gboolean gd_motion_event(GtkWidget *widget, GdkEventMotion *motion,
863                                 void *opaque)
864 {
865     VirtualConsole *vc = opaque;
866     GtkDisplayState *s = vc->s;
867     int x, y;
868     int mx, my;
869     int fbh, fbw;
870     int ww, wh;
871 
872     if (!vc->gfx.ds) {
873         return TRUE;
874     }
875 
876     fbw = surface_width(vc->gfx.ds) * vc->gfx.scale_x;
877     fbh = surface_height(vc->gfx.ds) * vc->gfx.scale_y;
878 
879     gdk_drawable_get_size(gtk_widget_get_window(vc->gfx.drawing_area),
880                           &ww, &wh);
881 
882     mx = my = 0;
883     if (ww > fbw) {
884         mx = (ww - fbw) / 2;
885     }
886     if (wh > fbh) {
887         my = (wh - fbh) / 2;
888     }
889 
890     x = (motion->x - mx) / vc->gfx.scale_x;
891     y = (motion->y - my) / vc->gfx.scale_y;
892 
893     if (qemu_input_is_absolute()) {
894         if (x < 0 || y < 0 ||
895             x >= surface_width(vc->gfx.ds) ||
896             y >= surface_height(vc->gfx.ds)) {
897             return TRUE;
898         }
899         qemu_input_queue_abs(vc->gfx.dcl.con, INPUT_AXIS_X, x,
900                              surface_width(vc->gfx.ds));
901         qemu_input_queue_abs(vc->gfx.dcl.con, INPUT_AXIS_Y, y,
902                              surface_height(vc->gfx.ds));
903         qemu_input_event_sync();
904     } else if (s->last_set && s->ptr_owner == vc) {
905         qemu_input_queue_rel(vc->gfx.dcl.con, INPUT_AXIS_X, x - s->last_x);
906         qemu_input_queue_rel(vc->gfx.dcl.con, INPUT_AXIS_Y, y - s->last_y);
907         qemu_input_event_sync();
908     }
909     s->last_x = x;
910     s->last_y = y;
911     s->last_set = TRUE;
912 
913     if (!qemu_input_is_absolute() && s->ptr_owner == vc) {
914         GdkScreen *screen = gtk_widget_get_screen(vc->gfx.drawing_area);
915         int x = (int)motion->x_root;
916         int y = (int)motion->y_root;
917 
918         /* In relative mode check to see if client pointer hit
919          * one of the screen edges, and if so move it back by
920          * 200 pixels. This is important because the pointer
921          * in the server doesn't correspond 1-for-1, and so
922          * may still be only half way across the screen. Without
923          * this warp, the server pointer would thus appear to hit
924          * an invisible wall */
925         if (x == 0) {
926             x += 200;
927         }
928         if (y == 0) {
929             y += 200;
930         }
931         if (x == (gdk_screen_get_width(screen) - 1)) {
932             x -= 200;
933         }
934         if (y == (gdk_screen_get_height(screen) - 1)) {
935             y -= 200;
936         }
937 
938         if (x != (int)motion->x_root || y != (int)motion->y_root) {
939 #if GTK_CHECK_VERSION(3, 0, 0)
940             GdkDevice *dev = gdk_event_get_device((GdkEvent *)motion);
941             gdk_device_warp(dev, screen, x, y);
942 #else
943             GdkDisplay *display = gtk_widget_get_display(widget);
944             gdk_display_warp_pointer(display, screen, x, y);
945 #endif
946             s->last_set = FALSE;
947             return FALSE;
948         }
949     }
950     return TRUE;
951 }
952 
953 static gboolean gd_button_event(GtkWidget *widget, GdkEventButton *button,
954                                 void *opaque)
955 {
956     VirtualConsole *vc = opaque;
957     GtkDisplayState *s = vc->s;
958     InputButton btn;
959 
960     /* implicitly grab the input at the first click in the relative mode */
961     if (button->button == 1 && button->type == GDK_BUTTON_PRESS &&
962         !qemu_input_is_absolute() && s->ptr_owner != vc) {
963         if (!vc->window) {
964             gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
965                                            TRUE);
966         } else {
967             gd_grab_pointer(vc, "relative-mode-click");
968         }
969         return TRUE;
970     }
971 
972     if (button->button == 1) {
973         btn = INPUT_BUTTON_LEFT;
974     } else if (button->button == 2) {
975         btn = INPUT_BUTTON_MIDDLE;
976     } else if (button->button == 3) {
977         btn = INPUT_BUTTON_RIGHT;
978     } else {
979         return TRUE;
980     }
981 
982     qemu_input_queue_btn(vc->gfx.dcl.con, btn,
983                          button->type == GDK_BUTTON_PRESS);
984     qemu_input_event_sync();
985     return TRUE;
986 }
987 
988 static gboolean gd_scroll_event(GtkWidget *widget, GdkEventScroll *scroll,
989                                 void *opaque)
990 {
991     VirtualConsole *vc = opaque;
992     InputButton btn;
993 
994     if (scroll->direction == GDK_SCROLL_UP) {
995         btn = INPUT_BUTTON_WHEEL_UP;
996     } else if (scroll->direction == GDK_SCROLL_DOWN) {
997         btn = INPUT_BUTTON_WHEEL_DOWN;
998     } else {
999         return TRUE;
1000     }
1001 
1002     qemu_input_queue_btn(vc->gfx.dcl.con, btn, true);
1003     qemu_input_event_sync();
1004     qemu_input_queue_btn(vc->gfx.dcl.con, btn, false);
1005     qemu_input_event_sync();
1006     return TRUE;
1007 }
1008 
1009 static int gd_map_keycode(GtkDisplayState *s, GdkDisplay *dpy, int gdk_keycode)
1010 {
1011     int qemu_keycode;
1012 
1013 #ifdef GDK_WINDOWING_WIN32
1014     if (GDK_IS_WIN32_DISPLAY(dpy)) {
1015         qemu_keycode = MapVirtualKey(gdk_keycode, MAPVK_VK_TO_VSC);
1016         switch (qemu_keycode) {
1017         case 103:   /* alt gr */
1018             qemu_keycode = 56 | SCANCODE_GREY;
1019             break;
1020         }
1021         return qemu_keycode;
1022     }
1023 #endif
1024 
1025     if (gdk_keycode < 9) {
1026         qemu_keycode = 0;
1027     } else if (gdk_keycode < 97) {
1028         qemu_keycode = gdk_keycode - 8;
1029 #ifdef GDK_WINDOWING_X11
1030     } else if (GDK_IS_X11_DISPLAY(dpy) && gdk_keycode < 158) {
1031         if (s->has_evdev) {
1032             qemu_keycode = translate_evdev_keycode(gdk_keycode - 97);
1033         } else {
1034             qemu_keycode = translate_xfree86_keycode(gdk_keycode - 97);
1035         }
1036 #endif
1037     } else if (gdk_keycode == 208) { /* Hiragana_Katakana */
1038         qemu_keycode = 0x70;
1039     } else if (gdk_keycode == 211) { /* backslash */
1040         qemu_keycode = 0x73;
1041     } else {
1042         qemu_keycode = 0;
1043     }
1044 
1045     return qemu_keycode;
1046 }
1047 
1048 static gboolean gd_text_key_down(GtkWidget *widget,
1049                                  GdkEventKey *key, void *opaque)
1050 {
1051     VirtualConsole *vc = opaque;
1052     QemuConsole *con = vc->gfx.dcl.con;
1053 
1054     if (key->length) {
1055         kbd_put_string_console(con, key->string, key->length);
1056     } else {
1057         int num = gd_map_keycode(vc->s, gtk_widget_get_display(widget),
1058                                  key->hardware_keycode);
1059         int qcode = qemu_input_key_number_to_qcode(num);
1060         kbd_put_qcode_console(con, qcode);
1061     }
1062     return TRUE;
1063 }
1064 
1065 static gboolean gd_key_event(GtkWidget *widget, GdkEventKey *key, void *opaque)
1066 {
1067     VirtualConsole *vc = opaque;
1068     GtkDisplayState *s = vc->s;
1069     int gdk_keycode = key->hardware_keycode;
1070     int qemu_keycode;
1071     int i;
1072 
1073     if (s->ignore_keys) {
1074         s->ignore_keys = (key->type == GDK_KEY_PRESS);
1075         return TRUE;
1076     }
1077 
1078     if (key->keyval == GDK_KEY_Pause) {
1079         qemu_input_event_send_key_qcode(vc->gfx.dcl.con, Q_KEY_CODE_PAUSE,
1080                                         key->type == GDK_KEY_PRESS);
1081         return TRUE;
1082     }
1083 
1084     qemu_keycode = gd_map_keycode(s, gtk_widget_get_display(widget),
1085                                   gdk_keycode);
1086 
1087     trace_gd_key_event(vc->label, gdk_keycode, qemu_keycode,
1088                        (key->type == GDK_KEY_PRESS) ? "down" : "up");
1089 
1090     for (i = 0; i < ARRAY_SIZE(modifier_keycode); i++) {
1091         if (qemu_keycode == modifier_keycode[i]) {
1092             s->modifier_pressed[i] = (key->type == GDK_KEY_PRESS);
1093         }
1094     }
1095 
1096     qemu_input_event_send_key_number(vc->gfx.dcl.con, qemu_keycode,
1097                                      key->type == GDK_KEY_PRESS);
1098 
1099     return TRUE;
1100 }
1101 
1102 static gboolean gd_event(GtkWidget *widget, GdkEvent *event, void *opaque)
1103 {
1104     if (event->type == GDK_MOTION_NOTIFY) {
1105         return gd_motion_event(widget, &event->motion, opaque);
1106     }
1107     return FALSE;
1108 }
1109 
1110 /** Window Menu Actions **/
1111 
1112 static void gd_menu_pause(GtkMenuItem *item, void *opaque)
1113 {
1114     GtkDisplayState *s = opaque;
1115 
1116     if (s->external_pause_update) {
1117         return;
1118     }
1119     if (runstate_is_running()) {
1120         qmp_stop(NULL);
1121     } else {
1122         qmp_cont(NULL);
1123     }
1124 }
1125 
1126 static void gd_menu_reset(GtkMenuItem *item, void *opaque)
1127 {
1128     qmp_system_reset(NULL);
1129 }
1130 
1131 static void gd_menu_powerdown(GtkMenuItem *item, void *opaque)
1132 {
1133     qmp_system_powerdown(NULL);
1134 }
1135 
1136 static void gd_menu_quit(GtkMenuItem *item, void *opaque)
1137 {
1138     qmp_quit(NULL);
1139 }
1140 
1141 static void gd_menu_switch_vc(GtkMenuItem *item, void *opaque)
1142 {
1143     GtkDisplayState *s = opaque;
1144     VirtualConsole *vc = gd_vc_find_by_menu(s);
1145     GtkNotebook *nb = GTK_NOTEBOOK(s->notebook);
1146     gint page;
1147 
1148     gtk_release_modifiers(s);
1149     if (vc) {
1150         page = gtk_notebook_page_num(nb, vc->tab_item);
1151         gtk_notebook_set_current_page(nb, page);
1152         gtk_widget_grab_focus(vc->focus);
1153     }
1154     s->ignore_keys = false;
1155 }
1156 
1157 static void gd_accel_switch_vc(void *opaque)
1158 {
1159     VirtualConsole *vc = opaque;
1160 
1161     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(vc->menu_item), TRUE);
1162 #if !GTK_CHECK_VERSION(3, 0, 0)
1163     /* GTK2 sends the accel key to the target console - ignore this until */
1164     vc->s->ignore_keys = true;
1165 #endif
1166 }
1167 
1168 static void gd_menu_show_tabs(GtkMenuItem *item, void *opaque)
1169 {
1170     GtkDisplayState *s = opaque;
1171     VirtualConsole *vc = gd_vc_find_current(s);
1172 
1173     if (gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->show_tabs_item))) {
1174         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), TRUE);
1175     } else {
1176         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), FALSE);
1177     }
1178     gd_update_windowsize(vc);
1179 }
1180 
1181 static gboolean gd_tab_window_close(GtkWidget *widget, GdkEvent *event,
1182                                     void *opaque)
1183 {
1184     VirtualConsole *vc = opaque;
1185     GtkDisplayState *s = vc->s;
1186 
1187     gtk_widget_set_sensitive(vc->menu_item, true);
1188     gd_widget_reparent(vc->window, s->notebook, vc->tab_item);
1189     gtk_notebook_set_tab_label_text(GTK_NOTEBOOK(s->notebook),
1190                                     vc->tab_item, vc->label);
1191     gtk_widget_destroy(vc->window);
1192     vc->window = NULL;
1193     return TRUE;
1194 }
1195 
1196 static gboolean gd_win_grab(void *opaque)
1197 {
1198     VirtualConsole *vc = opaque;
1199 
1200     fprintf(stderr, "%s: %s\n", __func__, vc->label);
1201     if (vc->s->ptr_owner) {
1202         gd_ungrab_pointer(vc->s);
1203     } else {
1204         gd_grab_pointer(vc, "user-request-detached-tab");
1205     }
1206     return TRUE;
1207 }
1208 
1209 static void gd_menu_untabify(GtkMenuItem *item, void *opaque)
1210 {
1211     GtkDisplayState *s = opaque;
1212     VirtualConsole *vc = gd_vc_find_current(s);
1213 
1214     if (vc->type == GD_VC_GFX &&
1215         qemu_console_is_graphic(vc->gfx.dcl.con)) {
1216         gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
1217                                        FALSE);
1218     }
1219     if (!vc->window) {
1220         gtk_widget_set_sensitive(vc->menu_item, false);
1221         vc->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1222         gd_widget_reparent(s->notebook, vc->window, vc->tab_item);
1223 
1224         g_signal_connect(vc->window, "delete-event",
1225                          G_CALLBACK(gd_tab_window_close), vc);
1226         gtk_widget_show_all(vc->window);
1227 
1228         if (qemu_console_is_graphic(vc->gfx.dcl.con)) {
1229             GtkAccelGroup *ag = gtk_accel_group_new();
1230             gtk_window_add_accel_group(GTK_WINDOW(vc->window), ag);
1231 
1232             GClosure *cb = g_cclosure_new_swap(G_CALLBACK(gd_win_grab),
1233                                                vc, NULL);
1234             gtk_accel_group_connect(ag, GDK_KEY_g, HOTKEY_MODIFIERS, 0, cb);
1235         }
1236 
1237         gd_update_geometry_hints(vc);
1238         gd_update_caption(s);
1239     }
1240 }
1241 
1242 static void gd_menu_full_screen(GtkMenuItem *item, void *opaque)
1243 {
1244     GtkDisplayState *s = opaque;
1245     VirtualConsole *vc = gd_vc_find_current(s);
1246 
1247     if (!s->full_screen) {
1248         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), FALSE);
1249         gtk_widget_hide(s->menu_bar);
1250         if (vc->type == GD_VC_GFX) {
1251             gtk_widget_set_size_request(vc->gfx.drawing_area, -1, -1);
1252         }
1253         gtk_window_fullscreen(GTK_WINDOW(s->window));
1254         s->full_screen = TRUE;
1255     } else {
1256         gtk_window_unfullscreen(GTK_WINDOW(s->window));
1257         gd_menu_show_tabs(GTK_MENU_ITEM(s->show_tabs_item), s);
1258         gtk_widget_show(s->menu_bar);
1259         s->full_screen = FALSE;
1260         if (vc->type == GD_VC_GFX) {
1261             vc->gfx.scale_x = 1.0;
1262             vc->gfx.scale_y = 1.0;
1263             gd_update_windowsize(vc);
1264         }
1265     }
1266 
1267     gd_update_cursor(vc);
1268 }
1269 
1270 static void gd_accel_full_screen(void *opaque)
1271 {
1272     GtkDisplayState *s = opaque;
1273     gtk_menu_item_activate(GTK_MENU_ITEM(s->full_screen_item));
1274 }
1275 
1276 static void gd_menu_zoom_in(GtkMenuItem *item, void *opaque)
1277 {
1278     GtkDisplayState *s = opaque;
1279     VirtualConsole *vc = gd_vc_find_current(s);
1280 
1281     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->zoom_fit_item),
1282                                    FALSE);
1283 
1284     vc->gfx.scale_x += VC_SCALE_STEP;
1285     vc->gfx.scale_y += VC_SCALE_STEP;
1286 
1287     gd_update_windowsize(vc);
1288 }
1289 
1290 static void gd_menu_zoom_out(GtkMenuItem *item, void *opaque)
1291 {
1292     GtkDisplayState *s = opaque;
1293     VirtualConsole *vc = gd_vc_find_current(s);
1294 
1295     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->zoom_fit_item),
1296                                    FALSE);
1297 
1298     vc->gfx.scale_x -= VC_SCALE_STEP;
1299     vc->gfx.scale_y -= VC_SCALE_STEP;
1300 
1301     vc->gfx.scale_x = MAX(vc->gfx.scale_x, VC_SCALE_MIN);
1302     vc->gfx.scale_y = MAX(vc->gfx.scale_y, VC_SCALE_MIN);
1303 
1304     gd_update_windowsize(vc);
1305 }
1306 
1307 static void gd_menu_zoom_fixed(GtkMenuItem *item, void *opaque)
1308 {
1309     GtkDisplayState *s = opaque;
1310     VirtualConsole *vc = gd_vc_find_current(s);
1311 
1312     vc->gfx.scale_x = 1.0;
1313     vc->gfx.scale_y = 1.0;
1314 
1315     gd_update_windowsize(vc);
1316 }
1317 
1318 static void gd_menu_zoom_fit(GtkMenuItem *item, void *opaque)
1319 {
1320     GtkDisplayState *s = opaque;
1321     VirtualConsole *vc = gd_vc_find_current(s);
1322 
1323     if (gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->zoom_fit_item))) {
1324         s->free_scale = TRUE;
1325     } else {
1326         s->free_scale = FALSE;
1327         vc->gfx.scale_x = 1.0;
1328         vc->gfx.scale_y = 1.0;
1329     }
1330 
1331     gd_update_windowsize(vc);
1332     gd_update_full_redraw(vc);
1333 }
1334 
1335 #if GTK_CHECK_VERSION(3, 20, 0)
1336 static void gd_grab_update(VirtualConsole *vc, bool kbd, bool ptr)
1337 {
1338     GdkDisplay *display = gtk_widget_get_display(vc->gfx.drawing_area);
1339     GdkSeat *seat = gdk_display_get_default_seat(display);
1340     GdkWindow *window = gtk_widget_get_window(vc->gfx.drawing_area);
1341     GdkSeatCapabilities caps = 0;
1342     GdkCursor *cursor = NULL;
1343 
1344     if (kbd) {
1345         caps |= GDK_SEAT_CAPABILITY_KEYBOARD;
1346     }
1347     if (ptr) {
1348         caps |= GDK_SEAT_CAPABILITY_ALL_POINTING;
1349         cursor = vc->s->null_cursor;
1350     }
1351 
1352     if (caps) {
1353         gdk_seat_grab(seat, window, caps, false, cursor,
1354                       NULL, NULL, NULL);
1355     } else {
1356         gdk_seat_ungrab(seat);
1357     }
1358 }
1359 #elif GTK_CHECK_VERSION(3, 0, 0)
1360 static void gd_grab_devices(VirtualConsole *vc, bool grab,
1361                             GdkInputSource source, GdkEventMask mask,
1362                             GdkCursor *cursor)
1363 {
1364     GdkDisplay *display = gtk_widget_get_display(vc->gfx.drawing_area);
1365     GdkDeviceManager *mgr = gdk_display_get_device_manager(display);
1366     GList *devs = gdk_device_manager_list_devices(mgr, GDK_DEVICE_TYPE_MASTER);
1367     GList *tmp = devs;
1368 
1369     for (tmp = devs; tmp; tmp = tmp->next) {
1370         GdkDevice *dev = tmp->data;
1371         if (gdk_device_get_source(dev) != source) {
1372             continue;
1373         }
1374         if (grab) {
1375             GdkWindow *win = gtk_widget_get_window(vc->gfx.drawing_area);
1376             gdk_device_grab(dev, win, GDK_OWNERSHIP_NONE, FALSE,
1377                             mask, cursor, GDK_CURRENT_TIME);
1378         } else {
1379             gdk_device_ungrab(dev, GDK_CURRENT_TIME);
1380         }
1381     }
1382     g_list_free(devs);
1383 }
1384 #endif
1385 
1386 static void gd_grab_keyboard(VirtualConsole *vc, const char *reason)
1387 {
1388     if (vc->s->kbd_owner) {
1389         if (vc->s->kbd_owner == vc) {
1390             return;
1391         } else {
1392             gd_ungrab_keyboard(vc->s);
1393         }
1394     }
1395 
1396 #if GTK_CHECK_VERSION(3, 20, 0)
1397     gd_grab_update(vc, true, vc->s->ptr_owner == vc);
1398 #elif GTK_CHECK_VERSION(3, 0, 0)
1399     gd_grab_devices(vc, true, GDK_SOURCE_KEYBOARD,
1400                    GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
1401                    NULL);
1402 #else
1403     gdk_keyboard_grab(gtk_widget_get_window(vc->gfx.drawing_area),
1404                       FALSE,
1405                       GDK_CURRENT_TIME);
1406 #endif
1407     vc->s->kbd_owner = vc;
1408     gd_update_caption(vc->s);
1409     trace_gd_grab(vc->label, "kbd", reason);
1410 }
1411 
1412 static void gd_ungrab_keyboard(GtkDisplayState *s)
1413 {
1414     VirtualConsole *vc = s->kbd_owner;
1415 
1416     if (vc == NULL) {
1417         return;
1418     }
1419     s->kbd_owner = NULL;
1420 
1421 #if GTK_CHECK_VERSION(3, 20, 0)
1422     gd_grab_update(vc, false, vc->s->ptr_owner == vc);
1423 #elif GTK_CHECK_VERSION(3, 0, 0)
1424     gd_grab_devices(vc, false, GDK_SOURCE_KEYBOARD, 0, NULL);
1425 #else
1426     gdk_keyboard_ungrab(GDK_CURRENT_TIME);
1427 #endif
1428     gd_update_caption(s);
1429     trace_gd_ungrab(vc->label, "kbd");
1430 }
1431 
1432 static void gd_grab_pointer(VirtualConsole *vc, const char *reason)
1433 {
1434     GdkDisplay *display = gtk_widget_get_display(vc->gfx.drawing_area);
1435 
1436     if (vc->s->ptr_owner) {
1437         if (vc->s->ptr_owner == vc) {
1438             return;
1439         } else {
1440             gd_ungrab_pointer(vc->s);
1441         }
1442     }
1443 
1444 #if GTK_CHECK_VERSION(3, 20, 0)
1445     gd_grab_update(vc, vc->s->kbd_owner == vc, true);
1446     gdk_device_get_position(gd_get_pointer(display),
1447                             NULL, &vc->s->grab_x_root, &vc->s->grab_y_root);
1448 #elif GTK_CHECK_VERSION(3, 0, 0)
1449     gd_grab_devices(vc, true, GDK_SOURCE_MOUSE,
1450                     GDK_POINTER_MOTION_MASK |
1451                     GDK_BUTTON_PRESS_MASK |
1452                     GDK_BUTTON_RELEASE_MASK |
1453                     GDK_BUTTON_MOTION_MASK |
1454                     GDK_SCROLL_MASK,
1455                     vc->s->null_cursor);
1456     gdk_device_get_position(gd_get_pointer(display),
1457                             NULL, &vc->s->grab_x_root, &vc->s->grab_y_root);
1458 #else
1459     gdk_pointer_grab(gtk_widget_get_window(vc->gfx.drawing_area),
1460                      FALSE, /* All events to come to our window directly */
1461                      GDK_POINTER_MOTION_MASK |
1462                      GDK_BUTTON_PRESS_MASK |
1463                      GDK_BUTTON_RELEASE_MASK |
1464                      GDK_BUTTON_MOTION_MASK |
1465                      GDK_SCROLL_MASK,
1466                      NULL, /* Allow cursor to move over entire desktop */
1467                      vc->s->null_cursor,
1468                      GDK_CURRENT_TIME);
1469     gdk_display_get_pointer(display, NULL,
1470                             &vc->s->grab_x_root, &vc->s->grab_y_root, NULL);
1471 #endif
1472     vc->s->ptr_owner = vc;
1473     gd_update_caption(vc->s);
1474     trace_gd_grab(vc->label, "ptr", reason);
1475 }
1476 
1477 static void gd_ungrab_pointer(GtkDisplayState *s)
1478 {
1479     VirtualConsole *vc = s->ptr_owner;
1480     GdkDisplay *display;
1481 
1482     if (vc == NULL) {
1483         return;
1484     }
1485     s->ptr_owner = NULL;
1486 
1487     display = gtk_widget_get_display(vc->gfx.drawing_area);
1488 #if GTK_CHECK_VERSION(3, 20, 0)
1489     gd_grab_update(vc, vc->s->kbd_owner == vc, false);
1490     gdk_device_warp(gd_get_pointer(display),
1491                     gtk_widget_get_screen(vc->gfx.drawing_area),
1492                     vc->s->grab_x_root, vc->s->grab_y_root);
1493 #elif GTK_CHECK_VERSION(3, 0, 0)
1494     gd_grab_devices(vc, false, GDK_SOURCE_MOUSE, 0, NULL);
1495     gdk_device_warp(gd_get_pointer(display),
1496                     gtk_widget_get_screen(vc->gfx.drawing_area),
1497                     vc->s->grab_x_root, vc->s->grab_y_root);
1498 #else
1499     gdk_pointer_ungrab(GDK_CURRENT_TIME);
1500     gdk_display_warp_pointer(display,
1501                              gtk_widget_get_screen(vc->gfx.drawing_area),
1502                              vc->s->grab_x_root, vc->s->grab_y_root);
1503 #endif
1504     gd_update_caption(s);
1505     trace_gd_ungrab(vc->label, "ptr");
1506 }
1507 
1508 static void gd_menu_grab_input(GtkMenuItem *item, void *opaque)
1509 {
1510     GtkDisplayState *s = opaque;
1511     VirtualConsole *vc = gd_vc_find_current(s);
1512 
1513     if (gd_is_grab_active(s)) {
1514         gd_grab_keyboard(vc, "user-request-main-window");
1515         gd_grab_pointer(vc, "user-request-main-window");
1516     } else {
1517         gd_ungrab_keyboard(s);
1518         gd_ungrab_pointer(s);
1519     }
1520 
1521     gd_update_cursor(vc);
1522 }
1523 
1524 static void gd_change_page(GtkNotebook *nb, gpointer arg1, guint arg2,
1525                            gpointer data)
1526 {
1527     GtkDisplayState *s = data;
1528     VirtualConsole *vc;
1529     gboolean on_vga;
1530 
1531     if (!gtk_widget_get_realized(s->notebook)) {
1532         return;
1533     }
1534 
1535 #ifdef VTE_RESIZE_HACK
1536     vc = gd_vc_find_current(s);
1537     if (vc && vc->type == GD_VC_VTE) {
1538         gtk_widget_hide(vc->vte.terminal);
1539     }
1540 #endif
1541     vc = gd_vc_find_by_page(s, arg2);
1542     if (!vc) {
1543         return;
1544     }
1545 #ifdef VTE_RESIZE_HACK
1546     if (vc->type == GD_VC_VTE) {
1547         gtk_widget_show(vc->vte.terminal);
1548     }
1549 #endif
1550     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(vc->menu_item),
1551                                    TRUE);
1552     on_vga = (vc->type == GD_VC_GFX &&
1553               qemu_console_is_graphic(vc->gfx.dcl.con));
1554     if (!on_vga) {
1555         gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
1556                                        FALSE);
1557     } else if (s->full_screen) {
1558         gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
1559                                        TRUE);
1560     }
1561     gtk_widget_set_sensitive(s->grab_item, on_vga);
1562 
1563     gd_update_windowsize(vc);
1564     gd_update_cursor(vc);
1565 }
1566 
1567 static gboolean gd_enter_event(GtkWidget *widget, GdkEventCrossing *crossing,
1568                                gpointer opaque)
1569 {
1570     VirtualConsole *vc = opaque;
1571     GtkDisplayState *s = vc->s;
1572 
1573     if (gd_grab_on_hover(s)) {
1574         gd_grab_keyboard(vc, "grab-on-hover");
1575     }
1576     return TRUE;
1577 }
1578 
1579 static gboolean gd_leave_event(GtkWidget *widget, GdkEventCrossing *crossing,
1580                                gpointer opaque)
1581 {
1582     VirtualConsole *vc = opaque;
1583     GtkDisplayState *s = vc->s;
1584 
1585     if (gd_grab_on_hover(s)) {
1586         gd_ungrab_keyboard(s);
1587     }
1588     return TRUE;
1589 }
1590 
1591 static gboolean gd_focus_out_event(GtkWidget *widget,
1592                                    GdkEventCrossing *crossing, gpointer opaque)
1593 {
1594     VirtualConsole *vc = opaque;
1595     GtkDisplayState *s = vc->s;
1596 
1597     gtk_release_modifiers(s);
1598     return TRUE;
1599 }
1600 
1601 static gboolean gd_configure(GtkWidget *widget,
1602                              GdkEventConfigure *cfg, gpointer opaque)
1603 {
1604     VirtualConsole *vc = opaque;
1605 
1606     gd_set_ui_info(vc, cfg->width, cfg->height);
1607     return FALSE;
1608 }
1609 
1610 /** Virtual Console Callbacks **/
1611 
1612 static GSList *gd_vc_menu_init(GtkDisplayState *s, VirtualConsole *vc,
1613                                int idx, GSList *group, GtkWidget *view_menu)
1614 {
1615     vc->menu_item = gtk_radio_menu_item_new_with_mnemonic(group, vc->label);
1616     gtk_accel_group_connect(s->accel_group, GDK_KEY_1 + idx,
1617             HOTKEY_MODIFIERS, 0,
1618             g_cclosure_new_swap(G_CALLBACK(gd_accel_switch_vc), vc, NULL));
1619 #if GTK_CHECK_VERSION(3, 8, 0)
1620     gtk_accel_label_set_accel(
1621             GTK_ACCEL_LABEL(gtk_bin_get_child(GTK_BIN(vc->menu_item))),
1622             GDK_KEY_1 + idx, HOTKEY_MODIFIERS);
1623 #endif
1624 
1625     g_signal_connect(vc->menu_item, "activate",
1626                      G_CALLBACK(gd_menu_switch_vc), s);
1627     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), vc->menu_item);
1628 
1629     group = gtk_radio_menu_item_get_group(GTK_RADIO_MENU_ITEM(vc->menu_item));
1630     return group;
1631 }
1632 
1633 #if defined(CONFIG_VTE)
1634 static void gd_menu_copy(GtkMenuItem *item, void *opaque)
1635 {
1636     GtkDisplayState *s = opaque;
1637     VirtualConsole *vc = gd_vc_find_current(s);
1638 
1639     vte_terminal_copy_clipboard(VTE_TERMINAL(vc->vte.terminal));
1640 }
1641 
1642 static void gd_vc_adjustment_changed(GtkAdjustment *adjustment, void *opaque)
1643 {
1644     VirtualConsole *vc = opaque;
1645 
1646     if (gtk_adjustment_get_upper(adjustment) >
1647         gtk_adjustment_get_page_size(adjustment)) {
1648         gtk_widget_show(vc->vte.scrollbar);
1649     } else {
1650         gtk_widget_hide(vc->vte.scrollbar);
1651     }
1652 }
1653 
1654 static int gd_vc_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1655 {
1656     VirtualConsole *vc = chr->opaque;
1657 
1658     vte_terminal_feed(VTE_TERMINAL(vc->vte.terminal), (const char *)buf, len);
1659     return len;
1660 }
1661 
1662 static void gd_vc_chr_set_echo(CharDriverState *chr, bool echo)
1663 {
1664     VirtualConsole *vc = chr->opaque;
1665 
1666     vc->vte.echo = echo;
1667 }
1668 
1669 static int nb_vcs;
1670 static CharDriverState *vcs[MAX_VCS];
1671 
1672 static CharDriverState *gd_vc_handler(ChardevVC *vc, Error **errp)
1673 {
1674     ChardevCommon *common = qapi_ChardevVC_base(vc);
1675     CharDriverState *chr;
1676 
1677     chr = qemu_chr_alloc(common, errp);
1678     if (!chr) {
1679         return NULL;
1680     }
1681 
1682     chr->chr_write = gd_vc_chr_write;
1683     chr->chr_set_echo = gd_vc_chr_set_echo;
1684 
1685     /* Temporary, until gd_vc_vte_init runs.  */
1686     chr->opaque = g_new0(VirtualConsole, 1);
1687 
1688     vcs[nb_vcs++] = chr;
1689 
1690     return chr;
1691 }
1692 
1693 static gboolean gd_vc_in(VteTerminal *terminal, gchar *text, guint size,
1694                          gpointer user_data)
1695 {
1696     VirtualConsole *vc = user_data;
1697 
1698     if (vc->vte.echo) {
1699         VteTerminal *term = VTE_TERMINAL(vc->vte.terminal);
1700         int i;
1701         for (i = 0; i < size; i++) {
1702             uint8_t c = text[i];
1703             if (c >= 128 || isprint(c)) {
1704                 /* 8-bit characters are considered printable.  */
1705                 vte_terminal_feed(term, &text[i], 1);
1706             } else if (c == '\r' || c == '\n') {
1707                 vte_terminal_feed(term, "\r\n", 2);
1708             } else {
1709                 char ctrl[2] = { '^', 0};
1710                 ctrl[1] = text[i] ^ 64;
1711                 vte_terminal_feed(term, ctrl, 2);
1712             }
1713         }
1714     }
1715 
1716     qemu_chr_be_write(vc->vte.chr, (uint8_t  *)text, (unsigned int)size);
1717     return TRUE;
1718 }
1719 
1720 static GSList *gd_vc_vte_init(GtkDisplayState *s, VirtualConsole *vc,
1721                               CharDriverState *chr, int idx,
1722                               GSList *group, GtkWidget *view_menu)
1723 {
1724     char buffer[32];
1725     GtkWidget *box;
1726     GtkWidget *scrollbar;
1727     GtkAdjustment *vadjustment;
1728     VirtualConsole *tmp_vc = chr->opaque;
1729 
1730     vc->s = s;
1731     vc->vte.echo = tmp_vc->vte.echo;
1732 
1733     vc->vte.chr = chr;
1734     chr->opaque = vc;
1735     g_free(tmp_vc);
1736 
1737     snprintf(buffer, sizeof(buffer), "vc%d", idx);
1738     vc->label = g_strdup_printf("%s", vc->vte.chr->label
1739                                 ? vc->vte.chr->label : buffer);
1740     group = gd_vc_menu_init(s, vc, idx, group, view_menu);
1741 
1742     vc->vte.terminal = vte_terminal_new();
1743     g_signal_connect(vc->vte.terminal, "commit", G_CALLBACK(gd_vc_in), vc);
1744 
1745     /* The documentation says that the default is UTF-8, but actually it is
1746      * 7-bit ASCII at least in VTE 0.38.
1747      */
1748 #if VTE_CHECK_VERSION(0, 38, 0)
1749     vte_terminal_set_encoding(VTE_TERMINAL(vc->vte.terminal), "UTF-8", NULL);
1750 #else
1751     vte_terminal_set_encoding(VTE_TERMINAL(vc->vte.terminal), "UTF-8");
1752 #endif
1753 
1754     vte_terminal_set_scrollback_lines(VTE_TERMINAL(vc->vte.terminal), -1);
1755     vte_terminal_set_size(VTE_TERMINAL(vc->vte.terminal),
1756                           VC_TERM_X_MIN, VC_TERM_Y_MIN);
1757 
1758 #if VTE_CHECK_VERSION(0, 28, 0) && GTK_CHECK_VERSION(3, 0, 0)
1759     vadjustment = gtk_scrollable_get_vadjustment
1760         (GTK_SCROLLABLE(vc->vte.terminal));
1761 #else
1762     vadjustment = vte_terminal_get_adjustment(VTE_TERMINAL(vc->vte.terminal));
1763 #endif
1764 
1765 #if GTK_CHECK_VERSION(3, 0, 0)
1766     box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 2);
1767     scrollbar = gtk_scrollbar_new(GTK_ORIENTATION_VERTICAL, vadjustment);
1768 #else
1769     box = gtk_hbox_new(false, 2);
1770     scrollbar = gtk_vscrollbar_new(vadjustment);
1771 #endif
1772 
1773     gtk_box_pack_start(GTK_BOX(box), vc->vte.terminal, TRUE, TRUE, 0);
1774     gtk_box_pack_start(GTK_BOX(box), scrollbar, FALSE, FALSE, 0);
1775 
1776     vc->vte.box = box;
1777     vc->vte.scrollbar = scrollbar;
1778 
1779     g_signal_connect(vadjustment, "changed",
1780                      G_CALLBACK(gd_vc_adjustment_changed), vc);
1781 
1782     vc->type = GD_VC_VTE;
1783     vc->tab_item = box;
1784     vc->focus = vc->vte.terminal;
1785     gtk_notebook_append_page(GTK_NOTEBOOK(s->notebook), vc->tab_item,
1786                              gtk_label_new(vc->label));
1787 
1788     qemu_chr_be_generic_open(vc->vte.chr);
1789 
1790     return group;
1791 }
1792 
1793 static void gd_vcs_init(GtkDisplayState *s, GSList *group,
1794                         GtkWidget *view_menu)
1795 {
1796     int i;
1797 
1798     for (i = 0; i < nb_vcs; i++) {
1799         VirtualConsole *vc = &s->vc[s->nb_vcs];
1800         group = gd_vc_vte_init(s, vc, vcs[i], s->nb_vcs, group, view_menu);
1801         s->nb_vcs++;
1802     }
1803 }
1804 #endif /* CONFIG_VTE */
1805 
1806 /** Window Creation **/
1807 
1808 static void gd_connect_vc_gfx_signals(VirtualConsole *vc)
1809 {
1810 #if GTK_CHECK_VERSION(3, 0, 0)
1811     g_signal_connect(vc->gfx.drawing_area, "draw",
1812                      G_CALLBACK(gd_draw_event), vc);
1813 #if defined(CONFIG_GTK_GL)
1814     if (display_opengl) {
1815         /* wire up GtkGlArea events */
1816         g_signal_connect(vc->gfx.drawing_area, "render",
1817                          G_CALLBACK(gd_render_event), vc);
1818         g_signal_connect(vc->gfx.drawing_area, "resize",
1819                          G_CALLBACK(gd_resize_event), vc);
1820     }
1821 #endif
1822 #else
1823     g_signal_connect(vc->gfx.drawing_area, "expose-event",
1824                      G_CALLBACK(gd_expose_event), vc);
1825 #endif
1826     if (qemu_console_is_graphic(vc->gfx.dcl.con)) {
1827         g_signal_connect(vc->gfx.drawing_area, "event",
1828                          G_CALLBACK(gd_event), vc);
1829         g_signal_connect(vc->gfx.drawing_area, "button-press-event",
1830                          G_CALLBACK(gd_button_event), vc);
1831         g_signal_connect(vc->gfx.drawing_area, "button-release-event",
1832                          G_CALLBACK(gd_button_event), vc);
1833         g_signal_connect(vc->gfx.drawing_area, "scroll-event",
1834                          G_CALLBACK(gd_scroll_event), vc);
1835         g_signal_connect(vc->gfx.drawing_area, "key-press-event",
1836                          G_CALLBACK(gd_key_event), vc);
1837         g_signal_connect(vc->gfx.drawing_area, "key-release-event",
1838                          G_CALLBACK(gd_key_event), vc);
1839 
1840         g_signal_connect(vc->gfx.drawing_area, "enter-notify-event",
1841                          G_CALLBACK(gd_enter_event), vc);
1842         g_signal_connect(vc->gfx.drawing_area, "leave-notify-event",
1843                          G_CALLBACK(gd_leave_event), vc);
1844         g_signal_connect(vc->gfx.drawing_area, "focus-out-event",
1845                          G_CALLBACK(gd_focus_out_event), vc);
1846         g_signal_connect(vc->gfx.drawing_area, "configure-event",
1847                          G_CALLBACK(gd_configure), vc);
1848     } else {
1849         g_signal_connect(vc->gfx.drawing_area, "key-press-event",
1850                          G_CALLBACK(gd_text_key_down), vc);
1851     }
1852 }
1853 
1854 static void gd_connect_signals(GtkDisplayState *s)
1855 {
1856     g_signal_connect(s->show_tabs_item, "activate",
1857                      G_CALLBACK(gd_menu_show_tabs), s);
1858     g_signal_connect(s->untabify_item, "activate",
1859                      G_CALLBACK(gd_menu_untabify), s);
1860 
1861     g_signal_connect(s->window, "delete-event",
1862                      G_CALLBACK(gd_window_close), s);
1863 
1864     g_signal_connect(s->pause_item, "activate",
1865                      G_CALLBACK(gd_menu_pause), s);
1866     g_signal_connect(s->reset_item, "activate",
1867                      G_CALLBACK(gd_menu_reset), s);
1868     g_signal_connect(s->powerdown_item, "activate",
1869                      G_CALLBACK(gd_menu_powerdown), s);
1870     g_signal_connect(s->quit_item, "activate",
1871                      G_CALLBACK(gd_menu_quit), s);
1872 #if defined(CONFIG_VTE)
1873     g_signal_connect(s->copy_item, "activate",
1874                      G_CALLBACK(gd_menu_copy), s);
1875 #endif
1876     g_signal_connect(s->full_screen_item, "activate",
1877                      G_CALLBACK(gd_menu_full_screen), s);
1878     g_signal_connect(s->zoom_in_item, "activate",
1879                      G_CALLBACK(gd_menu_zoom_in), s);
1880     g_signal_connect(s->zoom_out_item, "activate",
1881                      G_CALLBACK(gd_menu_zoom_out), s);
1882     g_signal_connect(s->zoom_fixed_item, "activate",
1883                      G_CALLBACK(gd_menu_zoom_fixed), s);
1884     g_signal_connect(s->zoom_fit_item, "activate",
1885                      G_CALLBACK(gd_menu_zoom_fit), s);
1886     g_signal_connect(s->grab_item, "activate",
1887                      G_CALLBACK(gd_menu_grab_input), s);
1888     g_signal_connect(s->notebook, "switch-page",
1889                      G_CALLBACK(gd_change_page), s);
1890 }
1891 
1892 static GtkWidget *gd_create_menu_machine(GtkDisplayState *s)
1893 {
1894     GtkWidget *machine_menu;
1895     GtkWidget *separator;
1896 
1897     machine_menu = gtk_menu_new();
1898     gtk_menu_set_accel_group(GTK_MENU(machine_menu), s->accel_group);
1899 
1900     s->pause_item = gtk_check_menu_item_new_with_mnemonic(_("_Pause"));
1901     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), s->pause_item);
1902 
1903     separator = gtk_separator_menu_item_new();
1904     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), separator);
1905 
1906     s->reset_item = gtk_menu_item_new_with_mnemonic(_("_Reset"));
1907     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), s->reset_item);
1908 
1909     s->powerdown_item = gtk_menu_item_new_with_mnemonic(_("Power _Down"));
1910     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), s->powerdown_item);
1911 
1912     separator = gtk_separator_menu_item_new();
1913     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), separator);
1914 
1915     s->quit_item = gtk_menu_item_new_with_mnemonic(_("_Quit"));
1916     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->quit_item),
1917                                  "<QEMU>/Machine/Quit");
1918     gtk_accel_map_add_entry("<QEMU>/Machine/Quit",
1919                             GDK_KEY_q, HOTKEY_MODIFIERS);
1920     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), s->quit_item);
1921 
1922     return machine_menu;
1923 }
1924 
1925 static GSList *gd_vc_gfx_init(GtkDisplayState *s, VirtualConsole *vc,
1926                               QemuConsole *con, int idx,
1927                               GSList *group, GtkWidget *view_menu)
1928 {
1929     vc->label = qemu_console_get_label(con);
1930     vc->s = s;
1931     vc->gfx.scale_x = 1.0;
1932     vc->gfx.scale_y = 1.0;
1933 
1934 #if defined(CONFIG_OPENGL)
1935     if (display_opengl) {
1936 #if defined(CONFIG_GTK_GL)
1937         vc->gfx.drawing_area = gtk_gl_area_new();
1938         vc->gfx.dcl.ops = &dcl_gl_area_ops;
1939 #else
1940         vc->gfx.drawing_area = gtk_drawing_area_new();
1941         /*
1942          * gtk_widget_set_double_buffered() was deprecated in 3.14.
1943          * It is required for opengl rendering on X11 though.  A
1944          * proper replacement (native opengl support) is only
1945          * available in 3.16+.  Silence the warning if possible.
1946          */
1947 #ifdef CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE
1948 #pragma GCC diagnostic push
1949 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
1950 #endif
1951         gtk_widget_set_double_buffered(vc->gfx.drawing_area, FALSE);
1952 #ifdef CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE
1953 #pragma GCC diagnostic pop
1954 #endif
1955         vc->gfx.dcl.ops = &dcl_egl_ops;
1956 #endif /* CONFIG_GTK_GL */
1957     } else
1958 #endif
1959     {
1960         vc->gfx.drawing_area = gtk_drawing_area_new();
1961         vc->gfx.dcl.ops = &dcl_ops;
1962     }
1963 
1964 
1965     gtk_widget_add_events(vc->gfx.drawing_area,
1966                           GDK_POINTER_MOTION_MASK |
1967                           GDK_BUTTON_PRESS_MASK |
1968                           GDK_BUTTON_RELEASE_MASK |
1969                           GDK_BUTTON_MOTION_MASK |
1970                           GDK_ENTER_NOTIFY_MASK |
1971                           GDK_LEAVE_NOTIFY_MASK |
1972                           GDK_SCROLL_MASK |
1973                           GDK_KEY_PRESS_MASK);
1974     gtk_widget_set_can_focus(vc->gfx.drawing_area, TRUE);
1975 
1976     vc->type = GD_VC_GFX;
1977     vc->tab_item = vc->gfx.drawing_area;
1978     vc->focus = vc->gfx.drawing_area;
1979     gtk_notebook_append_page(GTK_NOTEBOOK(s->notebook),
1980                              vc->tab_item, gtk_label_new(vc->label));
1981 
1982     vc->gfx.dcl.con = con;
1983     register_displaychangelistener(&vc->gfx.dcl);
1984 
1985     gd_connect_vc_gfx_signals(vc);
1986     group = gd_vc_menu_init(s, vc, idx, group, view_menu);
1987 
1988     if (dpy_ui_info_supported(vc->gfx.dcl.con)) {
1989         gtk_menu_item_activate(GTK_MENU_ITEM(s->zoom_fit_item));
1990         s->free_scale = true;
1991     }
1992 
1993     return group;
1994 }
1995 
1996 static GtkWidget *gd_create_menu_view(GtkDisplayState *s)
1997 {
1998     GSList *group = NULL;
1999     GtkWidget *view_menu;
2000     GtkWidget *separator;
2001     QemuConsole *con;
2002     int vc;
2003 
2004     view_menu = gtk_menu_new();
2005     gtk_menu_set_accel_group(GTK_MENU(view_menu), s->accel_group);
2006 
2007     s->full_screen_item = gtk_menu_item_new_with_mnemonic(_("_Fullscreen"));
2008 
2009 #if defined(CONFIG_VTE)
2010     s->copy_item = gtk_menu_item_new_with_mnemonic(_("_Copy"));
2011     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->copy_item);
2012 #endif
2013 
2014     gtk_accel_group_connect(s->accel_group, GDK_KEY_f, HOTKEY_MODIFIERS, 0,
2015             g_cclosure_new_swap(G_CALLBACK(gd_accel_full_screen), s, NULL));
2016 #if GTK_CHECK_VERSION(3, 8, 0)
2017     gtk_accel_label_set_accel(
2018             GTK_ACCEL_LABEL(gtk_bin_get_child(GTK_BIN(s->full_screen_item))),
2019             GDK_KEY_f, HOTKEY_MODIFIERS);
2020 #endif
2021     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->full_screen_item);
2022 
2023     separator = gtk_separator_menu_item_new();
2024     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), separator);
2025 
2026     s->zoom_in_item = gtk_menu_item_new_with_mnemonic(_("Zoom _In"));
2027     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->zoom_in_item),
2028                                  "<QEMU>/View/Zoom In");
2029     gtk_accel_map_add_entry("<QEMU>/View/Zoom In", GDK_KEY_plus,
2030                             HOTKEY_MODIFIERS);
2031     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->zoom_in_item);
2032 
2033     s->zoom_out_item = gtk_menu_item_new_with_mnemonic(_("Zoom _Out"));
2034     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->zoom_out_item),
2035                                  "<QEMU>/View/Zoom Out");
2036     gtk_accel_map_add_entry("<QEMU>/View/Zoom Out", GDK_KEY_minus,
2037                             HOTKEY_MODIFIERS);
2038     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->zoom_out_item);
2039 
2040     s->zoom_fixed_item = gtk_menu_item_new_with_mnemonic(_("Best _Fit"));
2041     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->zoom_fixed_item),
2042                                  "<QEMU>/View/Zoom Fixed");
2043     gtk_accel_map_add_entry("<QEMU>/View/Zoom Fixed", GDK_KEY_0,
2044                             HOTKEY_MODIFIERS);
2045     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->zoom_fixed_item);
2046 
2047     s->zoom_fit_item = gtk_check_menu_item_new_with_mnemonic(_("Zoom To _Fit"));
2048     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->zoom_fit_item);
2049 
2050     separator = gtk_separator_menu_item_new();
2051     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), separator);
2052 
2053     s->grab_on_hover_item = gtk_check_menu_item_new_with_mnemonic(_("Grab On _Hover"));
2054     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->grab_on_hover_item);
2055 
2056     s->grab_item = gtk_check_menu_item_new_with_mnemonic(_("_Grab Input"));
2057     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->grab_item),
2058                                  "<QEMU>/View/Grab Input");
2059     gtk_accel_map_add_entry("<QEMU>/View/Grab Input", GDK_KEY_g,
2060                             HOTKEY_MODIFIERS);
2061     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->grab_item);
2062 
2063     separator = gtk_separator_menu_item_new();
2064     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), separator);
2065 
2066     /* gfx */
2067     for (vc = 0;; vc++) {
2068         con = qemu_console_lookup_by_index(vc);
2069         if (!con) {
2070             break;
2071         }
2072         group = gd_vc_gfx_init(s, &s->vc[vc], con,
2073                                vc, group, view_menu);
2074         s->nb_vcs++;
2075     }
2076 
2077 #if defined(CONFIG_VTE)
2078     /* vte */
2079     gd_vcs_init(s, group, view_menu);
2080 #endif
2081 
2082     separator = gtk_separator_menu_item_new();
2083     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), separator);
2084 
2085     s->show_tabs_item = gtk_check_menu_item_new_with_mnemonic(_("Show _Tabs"));
2086     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->show_tabs_item);
2087 
2088     s->untabify_item = gtk_menu_item_new_with_mnemonic(_("Detach Tab"));
2089     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->untabify_item);
2090 
2091     return view_menu;
2092 }
2093 
2094 static void gd_create_menus(GtkDisplayState *s)
2095 {
2096     s->accel_group = gtk_accel_group_new();
2097     s->machine_menu = gd_create_menu_machine(s);
2098     s->view_menu = gd_create_menu_view(s);
2099 
2100     s->machine_menu_item = gtk_menu_item_new_with_mnemonic(_("_Machine"));
2101     gtk_menu_item_set_submenu(GTK_MENU_ITEM(s->machine_menu_item),
2102                               s->machine_menu);
2103     gtk_menu_shell_append(GTK_MENU_SHELL(s->menu_bar), s->machine_menu_item);
2104 
2105     s->view_menu_item = gtk_menu_item_new_with_mnemonic(_("_View"));
2106     gtk_menu_item_set_submenu(GTK_MENU_ITEM(s->view_menu_item), s->view_menu);
2107     gtk_menu_shell_append(GTK_MENU_SHELL(s->menu_bar), s->view_menu_item);
2108 
2109     g_object_set_data(G_OBJECT(s->window), "accel_group", s->accel_group);
2110     gtk_window_add_accel_group(GTK_WINDOW(s->window), s->accel_group);
2111 }
2112 
2113 static void gd_set_keycode_type(GtkDisplayState *s)
2114 {
2115 #ifdef GDK_WINDOWING_X11
2116     GdkDisplay *display = gtk_widget_get_display(s->window);
2117     if (GDK_IS_X11_DISPLAY(display)) {
2118         Display *x11_display = gdk_x11_display_get_xdisplay(display);
2119         XkbDescPtr desc = XkbGetKeyboard(x11_display, XkbGBN_AllComponentsMask,
2120                                          XkbUseCoreKbd);
2121         char *keycodes = NULL;
2122 
2123         if (desc && desc->names) {
2124             keycodes = XGetAtomName(x11_display, desc->names->keycodes);
2125         }
2126         if (keycodes == NULL) {
2127             fprintf(stderr, "could not lookup keycode name\n");
2128         } else if (strstart(keycodes, "evdev", NULL)) {
2129             s->has_evdev = true;
2130         } else if (!strstart(keycodes, "xfree86", NULL)) {
2131             fprintf(stderr, "unknown keycodes `%s', please report to "
2132                     "qemu-devel@nongnu.org\n", keycodes);
2133         }
2134 
2135         if (desc) {
2136             XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True);
2137         }
2138         if (keycodes) {
2139             XFree(keycodes);
2140         }
2141     }
2142 #endif
2143 }
2144 
2145 static gboolean gtkinit;
2146 
2147 void gtk_display_init(DisplayState *ds, bool full_screen, bool grab_on_hover)
2148 {
2149     GtkDisplayState *s = g_malloc0(sizeof(*s));
2150     char *filename;
2151     GdkDisplay *window_display;
2152 
2153     if (!gtkinit) {
2154         fprintf(stderr, "gtk initialization failed\n");
2155         exit(1);
2156     }
2157 
2158     s->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
2159 #if GTK_CHECK_VERSION(3, 2, 0)
2160     s->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
2161 #else
2162     s->vbox = gtk_vbox_new(FALSE, 0);
2163 #endif
2164     s->notebook = gtk_notebook_new();
2165     s->menu_bar = gtk_menu_bar_new();
2166 
2167     s->free_scale = FALSE;
2168 
2169     /* LC_MESSAGES only. See early_gtk_display_init() for details */
2170     setlocale(LC_MESSAGES, "");
2171     bindtextdomain("qemu", CONFIG_QEMU_LOCALEDIR);
2172     textdomain("qemu");
2173 
2174     window_display = gtk_widget_get_display(s->window);
2175     s->null_cursor = gdk_cursor_new_for_display(window_display,
2176                                                 GDK_BLANK_CURSOR);
2177 
2178     s->mouse_mode_notifier.notify = gd_mouse_mode_change;
2179     qemu_add_mouse_mode_change_notifier(&s->mouse_mode_notifier);
2180     qemu_add_vm_change_state_handler(gd_change_runstate, s);
2181 
2182     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu_logo_no_text.svg");
2183     if (filename) {
2184         GError *error = NULL;
2185         GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(filename, &error);
2186         if (pixbuf) {
2187             gtk_window_set_icon(GTK_WINDOW(s->window), pixbuf);
2188         } else {
2189             g_error_free(error);
2190         }
2191         g_free(filename);
2192     }
2193 
2194     gd_create_menus(s);
2195 
2196     gd_connect_signals(s);
2197 
2198     gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), FALSE);
2199     gtk_notebook_set_show_border(GTK_NOTEBOOK(s->notebook), FALSE);
2200 
2201     gd_update_caption(s);
2202 
2203     gtk_box_pack_start(GTK_BOX(s->vbox), s->menu_bar, FALSE, TRUE, 0);
2204     gtk_box_pack_start(GTK_BOX(s->vbox), s->notebook, TRUE, TRUE, 0);
2205 
2206     gtk_container_add(GTK_CONTAINER(s->window), s->vbox);
2207 
2208     gtk_widget_show_all(s->window);
2209 
2210 #ifdef VTE_RESIZE_HACK
2211     {
2212         VirtualConsole *cur = gd_vc_find_current(s);
2213         if (cur) {
2214             int i;
2215 
2216             for (i = 0; i < s->nb_vcs; i++) {
2217                 VirtualConsole *vc = &s->vc[i];
2218                 if (vc && vc->type == GD_VC_VTE && vc != cur) {
2219                     gtk_widget_hide(vc->vte.terminal);
2220                 }
2221             }
2222             gd_update_windowsize(cur);
2223         }
2224     }
2225 #endif
2226 
2227     if (full_screen) {
2228         gtk_menu_item_activate(GTK_MENU_ITEM(s->full_screen_item));
2229     }
2230     if (grab_on_hover) {
2231         gtk_menu_item_activate(GTK_MENU_ITEM(s->grab_on_hover_item));
2232     }
2233 
2234     gd_set_keycode_type(s);
2235 }
2236 
2237 void early_gtk_display_init(int opengl)
2238 {
2239     /* The QEMU code relies on the assumption that it's always run in
2240      * the C locale. Therefore it is not prepared to deal with
2241      * operations that produce different results depending on the
2242      * locale, such as printf's formatting of decimal numbers, and
2243      * possibly others.
2244      *
2245      * Since GTK+ calls setlocale() by default -importing the locale
2246      * settings from the environment- we must prevent it from doing so
2247      * using gtk_disable_setlocale().
2248      *
2249      * QEMU's GTK+ UI, however, _does_ have translations for some of
2250      * the menu items. As a trade-off between a functionally correct
2251      * QEMU and a fully internationalized UI we support importing
2252      * LC_MESSAGES from the environment (see the setlocale() call
2253      * earlier in this file). This allows us to display translated
2254      * messages leaving everything else untouched.
2255      */
2256     gtk_disable_setlocale();
2257     gtkinit = gtk_init_check(NULL, NULL);
2258     if (!gtkinit) {
2259         /* don't exit yet, that'll break -help */
2260         return;
2261     }
2262 
2263     switch (opengl) {
2264     case -1: /* default */
2265     case 0:  /* off */
2266         break;
2267     case 1: /* on */
2268 #if defined(CONFIG_OPENGL)
2269 #if defined(CONFIG_GTK_GL)
2270         gtk_gl_area_init();
2271 #else
2272         gtk_egl_init();
2273 #endif
2274 #endif
2275         break;
2276     default:
2277         g_assert_not_reached();
2278         break;
2279     }
2280 
2281 #if defined(CONFIG_VTE)
2282     register_vc_handler(gd_vc_handler);
2283 #endif
2284 }
2285