xref: /openbmc/qemu/ui/gtk.c (revision 61d9f32b)
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-common.h"
38 
39 #include "ui/console.h"
40 #include "ui/gtk.h"
41 
42 #include <glib/gi18n.h>
43 #include <locale.h>
44 #if defined(CONFIG_VTE)
45 #include <vte/vte.h>
46 #endif
47 #include <math.h>
48 
49 #include "trace.h"
50 #include "ui/input.h"
51 #include "sysemu/sysemu.h"
52 #include "qmp-commands.h"
53 #include "x_keymap.h"
54 #include "keymaps.h"
55 #include "sysemu/char.h"
56 #include "qom/object.h"
57 
58 #define MAX_VCS 10
59 #define VC_WINDOW_X_MIN  320
60 #define VC_WINDOW_Y_MIN  240
61 #define VC_TERM_X_MIN     80
62 #define VC_TERM_Y_MIN     25
63 #define VC_SCALE_MIN    0.25
64 #define VC_SCALE_STEP   0.25
65 
66 #if !defined(CONFIG_VTE)
67 # define VTE_CHECK_VERSION(a, b, c) 0
68 #endif
69 
70 #if defined(CONFIG_VTE) && !GTK_CHECK_VERSION(3, 0, 0)
71 /*
72  * The gtk2 vte terminal widget seriously messes up the window resize
73  * for some reason.  You basically can't make the qemu window smaller
74  * any more because the toplevel window geoemtry hints are overridden.
75  *
76  * Workaround that by hiding all vte widgets, except the one in the
77  * current tab.
78  *
79  * Luckily everything works smooth in gtk3.
80  */
81 # define VTE_RESIZE_HACK 1
82 #endif
83 
84 #if !GTK_CHECK_VERSION(2, 20, 0)
85 #define gtk_widget_get_realized(widget) GTK_WIDGET_REALIZED(widget)
86 #endif
87 
88 #ifndef GDK_IS_X11_DISPLAY
89 #define GDK_IS_X11_DISPLAY(dpy) (dpy == dpy)
90 #endif
91 #ifndef GDK_IS_WIN32_DISPLAY
92 #define GDK_IS_WIN32_DISPLAY(dpy) (dpy == dpy)
93 #endif
94 
95 #ifndef GDK_KEY_0
96 #define GDK_KEY_0 GDK_0
97 #define GDK_KEY_1 GDK_1
98 #define GDK_KEY_2 GDK_2
99 #define GDK_KEY_f GDK_f
100 #define GDK_KEY_g GDK_g
101 #define GDK_KEY_q GDK_q
102 #define GDK_KEY_plus GDK_plus
103 #define GDK_KEY_minus GDK_minus
104 #define GDK_KEY_Pause GDK_Pause
105 #endif
106 
107 /* Some older mingw versions lack this constant or have
108  * it conditionally defined */
109 #ifdef _WIN32
110 # ifndef MAPVK_VK_TO_VSC
111 #  define MAPVK_VK_TO_VSC 0
112 # endif
113 #endif
114 
115 
116 #define HOTKEY_MODIFIERS        (GDK_CONTROL_MASK | GDK_MOD1_MASK)
117 
118 static const int modifier_keycode[] = {
119     /* shift, control, alt keys, meta keys, both left & right */
120     0x2a, 0x36, 0x1d, 0x9d, 0x38, 0xb8, 0xdb, 0xdd,
121 };
122 
123 struct GtkDisplayState {
124     GtkWidget *window;
125 
126     GtkWidget *menu_bar;
127 
128     GtkAccelGroup *accel_group;
129 
130     GtkWidget *machine_menu_item;
131     GtkWidget *machine_menu;
132     GtkWidget *pause_item;
133     GtkWidget *reset_item;
134     GtkWidget *powerdown_item;
135     GtkWidget *quit_item;
136 
137     GtkWidget *view_menu_item;
138     GtkWidget *view_menu;
139     GtkWidget *full_screen_item;
140     GtkWidget *zoom_in_item;
141     GtkWidget *zoom_out_item;
142     GtkWidget *zoom_fixed_item;
143     GtkWidget *zoom_fit_item;
144     GtkWidget *grab_item;
145     GtkWidget *grab_on_hover_item;
146 
147     int nb_vcs;
148     VirtualConsole vc[MAX_VCS];
149 
150     GtkWidget *show_tabs_item;
151     GtkWidget *untabify_item;
152 
153     GtkWidget *vbox;
154     GtkWidget *notebook;
155     int button_mask;
156     gboolean last_set;
157     int last_x;
158     int last_y;
159     int grab_x_root;
160     int grab_y_root;
161     VirtualConsole *kbd_owner;
162     VirtualConsole *ptr_owner;
163 
164     gboolean full_screen;
165 
166     GdkCursor *null_cursor;
167     Notifier mouse_mode_notifier;
168     gboolean free_scale;
169 
170     bool external_pause_update;
171 
172     bool modifier_pressed[ARRAY_SIZE(modifier_keycode)];
173     bool has_evdev;
174     bool ignore_keys;
175 };
176 
177 static void gd_grab_pointer(VirtualConsole *vc, const char *reason);
178 static void gd_ungrab_pointer(GtkDisplayState *s);
179 static void gd_grab_keyboard(VirtualConsole *vc, const char *reason);
180 static void gd_ungrab_keyboard(GtkDisplayState *s);
181 
182 /** Utility Functions **/
183 
184 static VirtualConsole *gd_vc_find_by_menu(GtkDisplayState *s)
185 {
186     VirtualConsole *vc;
187     gint i;
188 
189     for (i = 0; i < s->nb_vcs; i++) {
190         vc = &s->vc[i];
191         if (gtk_check_menu_item_get_active
192             (GTK_CHECK_MENU_ITEM(vc->menu_item))) {
193             return vc;
194         }
195     }
196     return NULL;
197 }
198 
199 static VirtualConsole *gd_vc_find_by_page(GtkDisplayState *s, gint page)
200 {
201     VirtualConsole *vc;
202     gint i, p;
203 
204     for (i = 0; i < s->nb_vcs; i++) {
205         vc = &s->vc[i];
206         p = gtk_notebook_page_num(GTK_NOTEBOOK(s->notebook), vc->tab_item);
207         if (p == page) {
208             return vc;
209         }
210     }
211     return NULL;
212 }
213 
214 static VirtualConsole *gd_vc_find_current(GtkDisplayState *s)
215 {
216     gint page;
217 
218     page = gtk_notebook_get_current_page(GTK_NOTEBOOK(s->notebook));
219     return gd_vc_find_by_page(s, page);
220 }
221 
222 static bool gd_is_grab_active(GtkDisplayState *s)
223 {
224     return gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->grab_item));
225 }
226 
227 static bool gd_grab_on_hover(GtkDisplayState *s)
228 {
229     return gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->grab_on_hover_item));
230 }
231 
232 static void gd_update_cursor(VirtualConsole *vc)
233 {
234     GtkDisplayState *s = vc->s;
235     GdkWindow *window;
236 
237     if (vc->type != GD_VC_GFX ||
238         !qemu_console_is_graphic(vc->gfx.dcl.con)) {
239         return;
240     }
241 
242     if (!gtk_widget_get_realized(vc->gfx.drawing_area)) {
243         return;
244     }
245 
246     window = gtk_widget_get_window(GTK_WIDGET(vc->gfx.drawing_area));
247     if (s->full_screen || qemu_input_is_absolute() || s->ptr_owner == vc) {
248         gdk_window_set_cursor(window, s->null_cursor);
249     } else {
250         gdk_window_set_cursor(window, NULL);
251     }
252 }
253 
254 static void gd_update_caption(GtkDisplayState *s)
255 {
256     const char *status = "";
257     gchar *prefix;
258     gchar *title;
259     const char *grab = "";
260     bool is_paused = !runstate_is_running();
261     int i;
262 
263     if (qemu_name) {
264         prefix = g_strdup_printf("QEMU (%s)", qemu_name);
265     } else {
266         prefix = g_strdup_printf("QEMU");
267     }
268 
269     if (s->ptr_owner != NULL &&
270         s->ptr_owner->window == NULL) {
271         grab = _(" - Press Ctrl+Alt+G to release grab");
272     }
273 
274     if (is_paused) {
275         status = _(" [Paused]");
276     }
277     s->external_pause_update = true;
278     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->pause_item),
279                                    is_paused);
280     s->external_pause_update = false;
281 
282     title = g_strdup_printf("%s%s%s", prefix, status, grab);
283     gtk_window_set_title(GTK_WINDOW(s->window), title);
284     g_free(title);
285 
286     for (i = 0; i < s->nb_vcs; i++) {
287         VirtualConsole *vc = &s->vc[i];
288 
289         if (!vc->window) {
290             continue;
291         }
292         title = g_strdup_printf("%s: %s%s%s", prefix, vc->label,
293                                 vc == s->kbd_owner ? " +kbd" : "",
294                                 vc == s->ptr_owner ? " +ptr" : "");
295         gtk_window_set_title(GTK_WINDOW(vc->window), title);
296         g_free(title);
297     }
298 
299     g_free(prefix);
300 }
301 
302 static void gd_update_geometry_hints(VirtualConsole *vc)
303 {
304     GtkDisplayState *s = vc->s;
305     GdkWindowHints mask = 0;
306     GdkGeometry geo = {};
307     GtkWidget *geo_widget = NULL;
308     GtkWindow *geo_window;
309 
310     if (vc->type == GD_VC_GFX) {
311         if (!vc->gfx.ds) {
312             return;
313         }
314         if (s->free_scale) {
315             geo.min_width  = surface_width(vc->gfx.ds) * VC_SCALE_MIN;
316             geo.min_height = surface_height(vc->gfx.ds) * VC_SCALE_MIN;
317             mask |= GDK_HINT_MIN_SIZE;
318         } else {
319             geo.min_width  = surface_width(vc->gfx.ds) * vc->gfx.scale_x;
320             geo.min_height = surface_height(vc->gfx.ds) * vc->gfx.scale_y;
321             mask |= GDK_HINT_MIN_SIZE;
322         }
323         geo_widget = vc->gfx.drawing_area;
324         gtk_widget_set_size_request(geo_widget, geo.min_width, geo.min_height);
325 
326 #if defined(CONFIG_VTE)
327     } else if (vc->type == GD_VC_VTE) {
328         VteTerminal *term = VTE_TERMINAL(vc->vte.terminal);
329         GtkBorder *ib;
330 
331         geo.width_inc  = vte_terminal_get_char_width(term);
332         geo.height_inc = vte_terminal_get_char_height(term);
333         mask |= GDK_HINT_RESIZE_INC;
334         geo.base_width  = geo.width_inc;
335         geo.base_height = geo.height_inc;
336         mask |= GDK_HINT_BASE_SIZE;
337         geo.min_width  = geo.width_inc * VC_TERM_X_MIN;
338         geo.min_height = geo.height_inc * VC_TERM_Y_MIN;
339         mask |= GDK_HINT_MIN_SIZE;
340         gtk_widget_style_get(vc->vte.terminal, "inner-border", &ib, NULL);
341         geo.base_width  += ib->left + ib->right;
342         geo.base_height += ib->top + ib->bottom;
343         geo.min_width   += ib->left + ib->right;
344         geo.min_height  += ib->top + ib->bottom;
345         geo_widget = vc->vte.terminal;
346 #endif
347     }
348 
349     geo_window = GTK_WINDOW(vc->window ? vc->window : s->window);
350     gtk_window_set_geometry_hints(geo_window, geo_widget, &geo, mask);
351 }
352 
353 void gd_update_windowsize(VirtualConsole *vc)
354 {
355     GtkDisplayState *s = vc->s;
356 
357     gd_update_geometry_hints(vc);
358 
359     if (vc->type == GD_VC_GFX && !s->full_screen && !s->free_scale) {
360         gtk_window_resize(GTK_WINDOW(vc->window ? vc->window : s->window),
361                           VC_WINDOW_X_MIN, VC_WINDOW_Y_MIN);
362     }
363 }
364 
365 static void gd_update_full_redraw(VirtualConsole *vc)
366 {
367     GtkWidget *area = vc->gfx.drawing_area;
368     int ww, wh;
369     gdk_drawable_get_size(gtk_widget_get_window(area), &ww, &wh);
370 #if defined(CONFIG_GTK_GL)
371     if (vc->gfx.gls) {
372         gtk_gl_area_queue_render(GTK_GL_AREA(vc->gfx.drawing_area));
373         return;
374     }
375 #endif
376     gtk_widget_queue_draw_area(area, 0, 0, ww, wh);
377 }
378 
379 static void gtk_release_modifiers(GtkDisplayState *s)
380 {
381     VirtualConsole *vc = gd_vc_find_current(s);
382     int i, keycode;
383 
384     if (vc->type != GD_VC_GFX ||
385         !qemu_console_is_graphic(vc->gfx.dcl.con)) {
386         return;
387     }
388     for (i = 0; i < ARRAY_SIZE(modifier_keycode); i++) {
389         keycode = modifier_keycode[i];
390         if (!s->modifier_pressed[i]) {
391             continue;
392         }
393         qemu_input_event_send_key_number(vc->gfx.dcl.con, keycode, false);
394         s->modifier_pressed[i] = false;
395     }
396 }
397 
398 static void gd_widget_reparent(GtkWidget *from, GtkWidget *to,
399                                GtkWidget *widget)
400 {
401     g_object_ref(G_OBJECT(widget));
402     gtk_container_remove(GTK_CONTAINER(from), widget);
403     gtk_container_add(GTK_CONTAINER(to), widget);
404     g_object_unref(G_OBJECT(widget));
405 }
406 
407 /** DisplayState Callbacks **/
408 
409 static void gd_update(DisplayChangeListener *dcl,
410                       int x, int y, int w, int h)
411 {
412     VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
413     GdkWindow *win;
414     int x1, x2, y1, y2;
415     int mx, my;
416     int fbw, fbh;
417     int ww, wh;
418 
419     trace_gd_update(vc->label, x, y, w, h);
420 
421     if (!gtk_widget_get_realized(vc->gfx.drawing_area)) {
422         return;
423     }
424 
425     if (vc->gfx.convert) {
426         pixman_image_composite(PIXMAN_OP_SRC, vc->gfx.ds->image,
427                                NULL, vc->gfx.convert,
428                                x, y, 0, 0, x, y, w, h);
429     }
430 
431     x1 = floor(x * vc->gfx.scale_x);
432     y1 = floor(y * vc->gfx.scale_y);
433 
434     x2 = ceil(x * vc->gfx.scale_x + w * vc->gfx.scale_x);
435     y2 = ceil(y * vc->gfx.scale_y + h * vc->gfx.scale_y);
436 
437     fbw = surface_width(vc->gfx.ds) * vc->gfx.scale_x;
438     fbh = surface_height(vc->gfx.ds) * vc->gfx.scale_y;
439 
440     win = gtk_widget_get_window(vc->gfx.drawing_area);
441     if (!win) {
442         return;
443     }
444     gdk_drawable_get_size(win, &ww, &wh);
445 
446     mx = my = 0;
447     if (ww > fbw) {
448         mx = (ww - fbw) / 2;
449     }
450     if (wh > fbh) {
451         my = (wh - fbh) / 2;
452     }
453 
454     gtk_widget_queue_draw_area(vc->gfx.drawing_area,
455                                mx + x1, my + y1, (x2 - x1), (y2 - y1));
456 }
457 
458 static void gd_refresh(DisplayChangeListener *dcl)
459 {
460     graphic_hw_update(dcl->con);
461 }
462 
463 #if GTK_CHECK_VERSION(3, 0, 0)
464 static void gd_mouse_set(DisplayChangeListener *dcl,
465                          int x, int y, int visible)
466 {
467     VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
468     GdkDisplay *dpy;
469     GdkDeviceManager *mgr;
470     gint x_root, y_root;
471 
472     if (qemu_input_is_absolute()) {
473         return;
474     }
475 
476     dpy = gtk_widget_get_display(vc->gfx.drawing_area);
477     mgr = gdk_display_get_device_manager(dpy);
478     gdk_window_get_root_coords(gtk_widget_get_window(vc->gfx.drawing_area),
479                                x, y, &x_root, &y_root);
480     gdk_device_warp(gdk_device_manager_get_client_pointer(mgr),
481                     gtk_widget_get_screen(vc->gfx.drawing_area),
482                     x_root, y_root);
483     vc->s->last_x = x;
484     vc->s->last_y = y;
485 }
486 #else
487 static void gd_mouse_set(DisplayChangeListener *dcl,
488                          int x, int y, int visible)
489 {
490     VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
491     gint x_root, y_root;
492 
493     if (qemu_input_is_absolute()) {
494         return;
495     }
496 
497     gdk_window_get_root_coords(gtk_widget_get_window(vc->gfx.drawing_area),
498                                x, y, &x_root, &y_root);
499     gdk_display_warp_pointer(gtk_widget_get_display(vc->gfx.drawing_area),
500                              gtk_widget_get_screen(vc->gfx.drawing_area),
501                              x_root, y_root);
502 }
503 #endif
504 
505 static void gd_cursor_define(DisplayChangeListener *dcl,
506                              QEMUCursor *c)
507 {
508     VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
509     GdkPixbuf *pixbuf;
510     GdkCursor *cursor;
511 
512     if (!gtk_widget_get_realized(vc->gfx.drawing_area)) {
513         return;
514     }
515 
516     pixbuf = gdk_pixbuf_new_from_data((guchar *)(c->data),
517                                       GDK_COLORSPACE_RGB, true, 8,
518                                       c->width, c->height, c->width * 4,
519                                       NULL, NULL);
520     cursor = gdk_cursor_new_from_pixbuf
521         (gtk_widget_get_display(vc->gfx.drawing_area),
522          pixbuf, c->hot_x, c->hot_y);
523     gdk_window_set_cursor(gtk_widget_get_window(vc->gfx.drawing_area), cursor);
524     g_object_unref(pixbuf);
525 #if !GTK_CHECK_VERSION(3, 0, 0)
526     gdk_cursor_unref(cursor);
527 #else
528     g_object_unref(cursor);
529 #endif
530 }
531 
532 static void gd_switch(DisplayChangeListener *dcl,
533                       DisplaySurface *surface)
534 {
535     VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
536     bool resized = true;
537 
538     trace_gd_switch(vc->label,
539                     surface ? surface_width(surface)  : 0,
540                     surface ? surface_height(surface) : 0);
541 
542     if (vc->gfx.surface) {
543         cairo_surface_destroy(vc->gfx.surface);
544         vc->gfx.surface = NULL;
545     }
546     if (vc->gfx.convert) {
547         pixman_image_unref(vc->gfx.convert);
548         vc->gfx.convert = NULL;
549     }
550 
551     if (vc->gfx.ds && surface &&
552         surface_width(vc->gfx.ds) == surface_width(surface) &&
553         surface_height(vc->gfx.ds) == surface_height(surface)) {
554         resized = false;
555     }
556     vc->gfx.ds = surface;
557 
558     if (!surface) {
559         return;
560     }
561 
562     if (surface->format == PIXMAN_x8r8g8b8) {
563         /*
564          * PIXMAN_x8r8g8b8 == CAIRO_FORMAT_RGB24
565          *
566          * No need to convert, use surface directly.  Should be the
567          * common case as this is qemu_default_pixelformat(32) too.
568          */
569         vc->gfx.surface = cairo_image_surface_create_for_data
570             (surface_data(surface),
571              CAIRO_FORMAT_RGB24,
572              surface_width(surface),
573              surface_height(surface),
574              surface_stride(surface));
575     } else {
576         /* Must convert surface, use pixman to do it. */
577         vc->gfx.convert = pixman_image_create_bits(PIXMAN_x8r8g8b8,
578                                                    surface_width(surface),
579                                                    surface_height(surface),
580                                                    NULL, 0);
581         vc->gfx.surface = cairo_image_surface_create_for_data
582             ((void *)pixman_image_get_data(vc->gfx.convert),
583              CAIRO_FORMAT_RGB24,
584              pixman_image_get_width(vc->gfx.convert),
585              pixman_image_get_height(vc->gfx.convert),
586              pixman_image_get_stride(vc->gfx.convert));
587         pixman_image_composite(PIXMAN_OP_SRC, vc->gfx.ds->image,
588                                NULL, vc->gfx.convert,
589                                0, 0, 0, 0, 0, 0,
590                                pixman_image_get_width(vc->gfx.convert),
591                                pixman_image_get_height(vc->gfx.convert));
592     }
593 
594     if (resized) {
595         gd_update_windowsize(vc);
596     } else {
597         gd_update_full_redraw(vc);
598     }
599 }
600 
601 static const DisplayChangeListenerOps dcl_ops = {
602     .dpy_name             = "gtk",
603     .dpy_gfx_update       = gd_update,
604     .dpy_gfx_switch       = gd_switch,
605     .dpy_gfx_check_format = qemu_pixman_check_format,
606     .dpy_refresh          = gd_refresh,
607     .dpy_mouse_set        = gd_mouse_set,
608     .dpy_cursor_define    = gd_cursor_define,
609 };
610 
611 
612 #if defined(CONFIG_OPENGL)
613 
614 /** DisplayState Callbacks (opengl version) **/
615 
616 #if defined(CONFIG_GTK_GL)
617 
618 static const DisplayChangeListenerOps dcl_gl_area_ops = {
619     .dpy_name             = "gtk-egl",
620     .dpy_gfx_update       = gd_gl_area_update,
621     .dpy_gfx_switch       = gd_gl_area_switch,
622     .dpy_gfx_check_format = console_gl_check_format,
623     .dpy_refresh          = gd_gl_area_refresh,
624     .dpy_mouse_set        = gd_mouse_set,
625     .dpy_cursor_define    = gd_cursor_define,
626 
627     .dpy_gl_ctx_create       = gd_gl_area_create_context,
628     .dpy_gl_ctx_destroy      = gd_gl_area_destroy_context,
629     .dpy_gl_ctx_make_current = gd_gl_area_make_current,
630     .dpy_gl_ctx_get_current  = gd_gl_area_get_current_context,
631     .dpy_gl_scanout          = gd_gl_area_scanout,
632     .dpy_gl_update           = gd_gl_area_scanout_flush,
633 };
634 
635 #else
636 
637 static const DisplayChangeListenerOps dcl_egl_ops = {
638     .dpy_name             = "gtk-egl",
639     .dpy_gfx_update       = gd_egl_update,
640     .dpy_gfx_switch       = gd_egl_switch,
641     .dpy_gfx_check_format = console_gl_check_format,
642     .dpy_refresh          = gd_egl_refresh,
643     .dpy_mouse_set        = gd_mouse_set,
644     .dpy_cursor_define    = gd_cursor_define,
645 
646     .dpy_gl_ctx_create       = gd_egl_create_context,
647     .dpy_gl_ctx_destroy      = qemu_egl_destroy_context,
648     .dpy_gl_ctx_make_current = gd_egl_make_current,
649     .dpy_gl_ctx_get_current  = qemu_egl_get_current_context,
650     .dpy_gl_scanout          = gd_egl_scanout,
651     .dpy_gl_update           = gd_egl_scanout_flush,
652 };
653 
654 #endif /* CONFIG_GTK_GL */
655 #endif /* CONFIG_OPENGL */
656 
657 /** QEMU Events **/
658 
659 static void gd_change_runstate(void *opaque, int running, RunState state)
660 {
661     GtkDisplayState *s = opaque;
662 
663     gd_update_caption(s);
664 }
665 
666 static void gd_mouse_mode_change(Notifier *notify, void *data)
667 {
668     GtkDisplayState *s;
669     int i;
670 
671     s = container_of(notify, GtkDisplayState, mouse_mode_notifier);
672     /* release the grab at switching to absolute mode */
673     if (qemu_input_is_absolute() && gd_is_grab_active(s)) {
674         gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
675                                        FALSE);
676     }
677     for (i = 0; i < s->nb_vcs; i++) {
678         VirtualConsole *vc = &s->vc[i];
679         gd_update_cursor(vc);
680     }
681 }
682 
683 /** GTK Events **/
684 
685 static gboolean gd_window_close(GtkWidget *widget, GdkEvent *event,
686                                 void *opaque)
687 {
688     GtkDisplayState *s = opaque;
689     int i;
690 
691     if (!no_quit) {
692         for (i = 0; i < s->nb_vcs; i++) {
693             if (s->vc[i].type != GD_VC_GFX) {
694                 continue;
695             }
696             unregister_displaychangelistener(&s->vc[i].gfx.dcl);
697         }
698         qmp_quit(NULL);
699         return FALSE;
700     }
701 
702     return TRUE;
703 }
704 
705 static void gd_set_ui_info(VirtualConsole *vc, gint width, gint height)
706 {
707     QemuUIInfo info;
708 
709     memset(&info, 0, sizeof(info));
710     info.width = width;
711     info.height = height;
712     dpy_set_ui_info(vc->gfx.dcl.con, &info);
713 }
714 
715 #if defined(CONFIG_GTK_GL)
716 
717 static gboolean gd_render_event(GtkGLArea *area, GdkGLContext *context,
718                                 void *opaque)
719 {
720     VirtualConsole *vc = opaque;
721 
722     if (vc->gfx.gls) {
723         gd_gl_area_draw(vc);
724     }
725     return TRUE;
726 }
727 
728 static void gd_resize_event(GtkGLArea *area,
729                             gint width, gint height, gpointer *opaque)
730 {
731     VirtualConsole *vc = (void *)opaque;
732 
733     gd_set_ui_info(vc, width, height);
734 }
735 
736 #endif
737 
738 static gboolean gd_draw_event(GtkWidget *widget, cairo_t *cr, void *opaque)
739 {
740     VirtualConsole *vc = opaque;
741     GtkDisplayState *s = vc->s;
742     int mx, my;
743     int ww, wh;
744     int fbw, fbh;
745 
746 #if defined(CONFIG_OPENGL)
747     if (vc->gfx.gls) {
748 #if defined(CONFIG_GTK_GL)
749         /* invoke render callback please */
750         return FALSE;
751 #else
752         gd_egl_draw(vc);
753         return TRUE;
754 #endif
755     }
756 #endif
757 
758     if (!gtk_widget_get_realized(widget)) {
759         return FALSE;
760     }
761     if (!vc->gfx.ds) {
762         return FALSE;
763     }
764 
765     fbw = surface_width(vc->gfx.ds);
766     fbh = surface_height(vc->gfx.ds);
767 
768     gdk_drawable_get_size(gtk_widget_get_window(widget), &ww, &wh);
769 
770     if (s->full_screen) {
771         vc->gfx.scale_x = (double)ww / fbw;
772         vc->gfx.scale_y = (double)wh / fbh;
773     } else if (s->free_scale) {
774         double sx, sy;
775 
776         sx = (double)ww / fbw;
777         sy = (double)wh / fbh;
778 
779         vc->gfx.scale_x = vc->gfx.scale_y = MIN(sx, sy);
780     }
781 
782     fbw *= vc->gfx.scale_x;
783     fbh *= vc->gfx.scale_y;
784 
785     mx = my = 0;
786     if (ww > fbw) {
787         mx = (ww - fbw) / 2;
788     }
789     if (wh > fbh) {
790         my = (wh - fbh) / 2;
791     }
792 
793     cairo_rectangle(cr, 0, 0, ww, wh);
794 
795     /* Optionally cut out the inner area where the pixmap
796        will be drawn. This avoids 'flashing' since we're
797        not double-buffering. Note we're using the undocumented
798        behaviour of drawing the rectangle from right to left
799        to cut out the whole */
800     cairo_rectangle(cr, mx + fbw, my,
801                     -1 * fbw, fbh);
802     cairo_fill(cr);
803 
804     cairo_scale(cr, vc->gfx.scale_x, vc->gfx.scale_y);
805     cairo_set_source_surface(cr, vc->gfx.surface,
806                              mx / vc->gfx.scale_x, my / vc->gfx.scale_y);
807     cairo_paint(cr);
808 
809     return TRUE;
810 }
811 
812 #if !GTK_CHECK_VERSION(3, 0, 0)
813 static gboolean gd_expose_event(GtkWidget *widget, GdkEventExpose *expose,
814                                 void *opaque)
815 {
816     cairo_t *cr;
817     gboolean ret;
818 
819     cr = gdk_cairo_create(gtk_widget_get_window(widget));
820     cairo_rectangle(cr,
821                     expose->area.x,
822                     expose->area.y,
823                     expose->area.width,
824                     expose->area.height);
825     cairo_clip(cr);
826 
827     ret = gd_draw_event(widget, cr, opaque);
828 
829     cairo_destroy(cr);
830 
831     return ret;
832 }
833 #endif
834 
835 static gboolean gd_motion_event(GtkWidget *widget, GdkEventMotion *motion,
836                                 void *opaque)
837 {
838     VirtualConsole *vc = opaque;
839     GtkDisplayState *s = vc->s;
840     int x, y;
841     int mx, my;
842     int fbh, fbw;
843     int ww, wh;
844 
845     if (!vc->gfx.ds) {
846         return TRUE;
847     }
848 
849     fbw = surface_width(vc->gfx.ds) * vc->gfx.scale_x;
850     fbh = surface_height(vc->gfx.ds) * vc->gfx.scale_y;
851 
852     gdk_drawable_get_size(gtk_widget_get_window(vc->gfx.drawing_area),
853                           &ww, &wh);
854 
855     mx = my = 0;
856     if (ww > fbw) {
857         mx = (ww - fbw) / 2;
858     }
859     if (wh > fbh) {
860         my = (wh - fbh) / 2;
861     }
862 
863     x = (motion->x - mx) / vc->gfx.scale_x;
864     y = (motion->y - my) / vc->gfx.scale_y;
865 
866     if (qemu_input_is_absolute()) {
867         if (x < 0 || y < 0 ||
868             x >= surface_width(vc->gfx.ds) ||
869             y >= surface_height(vc->gfx.ds)) {
870             return TRUE;
871         }
872         qemu_input_queue_abs(vc->gfx.dcl.con, INPUT_AXIS_X, x,
873                              surface_width(vc->gfx.ds));
874         qemu_input_queue_abs(vc->gfx.dcl.con, INPUT_AXIS_Y, y,
875                              surface_height(vc->gfx.ds));
876         qemu_input_event_sync();
877     } else if (s->last_set && s->ptr_owner == vc) {
878         qemu_input_queue_rel(vc->gfx.dcl.con, INPUT_AXIS_X, x - s->last_x);
879         qemu_input_queue_rel(vc->gfx.dcl.con, INPUT_AXIS_Y, y - s->last_y);
880         qemu_input_event_sync();
881     }
882     s->last_x = x;
883     s->last_y = y;
884     s->last_set = TRUE;
885 
886     if (!qemu_input_is_absolute() && s->ptr_owner == vc) {
887         GdkScreen *screen = gtk_widget_get_screen(vc->gfx.drawing_area);
888         int x = (int)motion->x_root;
889         int y = (int)motion->y_root;
890 
891         /* In relative mode check to see if client pointer hit
892          * one of the screen edges, and if so move it back by
893          * 200 pixels. This is important because the pointer
894          * in the server doesn't correspond 1-for-1, and so
895          * may still be only half way across the screen. Without
896          * this warp, the server pointer would thus appear to hit
897          * an invisible wall */
898         if (x == 0) {
899             x += 200;
900         }
901         if (y == 0) {
902             y += 200;
903         }
904         if (x == (gdk_screen_get_width(screen) - 1)) {
905             x -= 200;
906         }
907         if (y == (gdk_screen_get_height(screen) - 1)) {
908             y -= 200;
909         }
910 
911         if (x != (int)motion->x_root || y != (int)motion->y_root) {
912 #if GTK_CHECK_VERSION(3, 0, 0)
913             GdkDevice *dev = gdk_event_get_device((GdkEvent *)motion);
914             gdk_device_warp(dev, screen, x, y);
915 #else
916             GdkDisplay *display = gtk_widget_get_display(widget);
917             gdk_display_warp_pointer(display, screen, x, y);
918 #endif
919             s->last_set = FALSE;
920             return FALSE;
921         }
922     }
923     return TRUE;
924 }
925 
926 static gboolean gd_button_event(GtkWidget *widget, GdkEventButton *button,
927                                 void *opaque)
928 {
929     VirtualConsole *vc = opaque;
930     GtkDisplayState *s = vc->s;
931     InputButton btn;
932 
933     /* implicitly grab the input at the first click in the relative mode */
934     if (button->button == 1 && button->type == GDK_BUTTON_PRESS &&
935         !qemu_input_is_absolute() && s->ptr_owner != vc) {
936         if (!vc->window) {
937             gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
938                                            TRUE);
939         } else {
940             gd_grab_pointer(vc, "relative-mode-click");
941         }
942         return TRUE;
943     }
944 
945     if (button->button == 1) {
946         btn = INPUT_BUTTON_LEFT;
947     } else if (button->button == 2) {
948         btn = INPUT_BUTTON_MIDDLE;
949     } else if (button->button == 3) {
950         btn = INPUT_BUTTON_RIGHT;
951     } else {
952         return TRUE;
953     }
954 
955     qemu_input_queue_btn(vc->gfx.dcl.con, btn,
956                          button->type == GDK_BUTTON_PRESS);
957     qemu_input_event_sync();
958     return TRUE;
959 }
960 
961 static gboolean gd_scroll_event(GtkWidget *widget, GdkEventScroll *scroll,
962                                 void *opaque)
963 {
964     VirtualConsole *vc = opaque;
965     InputButton btn;
966 
967     if (scroll->direction == GDK_SCROLL_UP) {
968         btn = INPUT_BUTTON_WHEELUP;
969     } else if (scroll->direction == GDK_SCROLL_DOWN) {
970         btn = INPUT_BUTTON_WHEELDOWN;
971     } else {
972         return TRUE;
973     }
974 
975     qemu_input_queue_btn(vc->gfx.dcl.con, btn, true);
976     qemu_input_event_sync();
977     qemu_input_queue_btn(vc->gfx.dcl.con, btn, false);
978     qemu_input_event_sync();
979     return TRUE;
980 }
981 
982 static int gd_map_keycode(GtkDisplayState *s, GdkDisplay *dpy, int gdk_keycode)
983 {
984     int qemu_keycode;
985 
986 #ifdef GDK_WINDOWING_WIN32
987     if (GDK_IS_WIN32_DISPLAY(dpy)) {
988         qemu_keycode = MapVirtualKey(gdk_keycode, MAPVK_VK_TO_VSC);
989         switch (qemu_keycode) {
990         case 103:   /* alt gr */
991             qemu_keycode = 56 | SCANCODE_GREY;
992             break;
993         }
994         return qemu_keycode;
995     }
996 #endif
997 
998     if (gdk_keycode < 9) {
999         qemu_keycode = 0;
1000     } else if (gdk_keycode < 97) {
1001         qemu_keycode = gdk_keycode - 8;
1002 #ifdef GDK_WINDOWING_X11
1003     } else if (GDK_IS_X11_DISPLAY(dpy) && gdk_keycode < 158) {
1004         if (s->has_evdev) {
1005             qemu_keycode = translate_evdev_keycode(gdk_keycode - 97);
1006         } else {
1007             qemu_keycode = translate_xfree86_keycode(gdk_keycode - 97);
1008         }
1009 #endif
1010     } else if (gdk_keycode == 208) { /* Hiragana_Katakana */
1011         qemu_keycode = 0x70;
1012     } else if (gdk_keycode == 211) { /* backslash */
1013         qemu_keycode = 0x73;
1014     } else {
1015         qemu_keycode = 0;
1016     }
1017 
1018     return qemu_keycode;
1019 }
1020 
1021 static gboolean gd_text_key_down(GtkWidget *widget,
1022                                  GdkEventKey *key, void *opaque)
1023 {
1024     VirtualConsole *vc = opaque;
1025     QemuConsole *con = vc->gfx.dcl.con;
1026 
1027     if (key->length) {
1028         kbd_put_string_console(con, key->string, key->length);
1029     } else {
1030         int num = gd_map_keycode(vc->s, gtk_widget_get_display(widget),
1031                                  key->hardware_keycode);
1032         int qcode = qemu_input_key_number_to_qcode(num);
1033         kbd_put_qcode_console(con, qcode);
1034     }
1035     return TRUE;
1036 }
1037 
1038 static gboolean gd_key_event(GtkWidget *widget, GdkEventKey *key, void *opaque)
1039 {
1040     VirtualConsole *vc = opaque;
1041     GtkDisplayState *s = vc->s;
1042     int gdk_keycode = key->hardware_keycode;
1043     int qemu_keycode;
1044     int i;
1045 
1046     if (s->ignore_keys) {
1047         s->ignore_keys = (key->type == GDK_KEY_PRESS);
1048         return TRUE;
1049     }
1050 
1051     if (key->keyval == GDK_KEY_Pause) {
1052         qemu_input_event_send_key_qcode(vc->gfx.dcl.con, Q_KEY_CODE_PAUSE,
1053                                         key->type == GDK_KEY_PRESS);
1054         return TRUE;
1055     }
1056 
1057     qemu_keycode = gd_map_keycode(s, gtk_widget_get_display(widget),
1058                                   gdk_keycode);
1059 
1060     trace_gd_key_event(vc->label, gdk_keycode, qemu_keycode,
1061                        (key->type == GDK_KEY_PRESS) ? "down" : "up");
1062 
1063     for (i = 0; i < ARRAY_SIZE(modifier_keycode); i++) {
1064         if (qemu_keycode == modifier_keycode[i]) {
1065             s->modifier_pressed[i] = (key->type == GDK_KEY_PRESS);
1066         }
1067     }
1068 
1069     qemu_input_event_send_key_number(vc->gfx.dcl.con, qemu_keycode,
1070                                      key->type == GDK_KEY_PRESS);
1071 
1072     return TRUE;
1073 }
1074 
1075 static gboolean gd_event(GtkWidget *widget, GdkEvent *event, void *opaque)
1076 {
1077     if (event->type == GDK_MOTION_NOTIFY) {
1078         return gd_motion_event(widget, &event->motion, opaque);
1079     }
1080     return FALSE;
1081 }
1082 
1083 /** Window Menu Actions **/
1084 
1085 static void gd_menu_pause(GtkMenuItem *item, void *opaque)
1086 {
1087     GtkDisplayState *s = opaque;
1088 
1089     if (s->external_pause_update) {
1090         return;
1091     }
1092     if (runstate_is_running()) {
1093         qmp_stop(NULL);
1094     } else {
1095         qmp_cont(NULL);
1096     }
1097 }
1098 
1099 static void gd_menu_reset(GtkMenuItem *item, void *opaque)
1100 {
1101     qmp_system_reset(NULL);
1102 }
1103 
1104 static void gd_menu_powerdown(GtkMenuItem *item, void *opaque)
1105 {
1106     qmp_system_powerdown(NULL);
1107 }
1108 
1109 static void gd_menu_quit(GtkMenuItem *item, void *opaque)
1110 {
1111     qmp_quit(NULL);
1112 }
1113 
1114 static void gd_menu_switch_vc(GtkMenuItem *item, void *opaque)
1115 {
1116     GtkDisplayState *s = opaque;
1117     VirtualConsole *vc = gd_vc_find_by_menu(s);
1118     GtkNotebook *nb = GTK_NOTEBOOK(s->notebook);
1119     gint page;
1120 
1121     gtk_release_modifiers(s);
1122     if (vc) {
1123         page = gtk_notebook_page_num(nb, vc->tab_item);
1124         gtk_notebook_set_current_page(nb, page);
1125         gtk_widget_grab_focus(vc->focus);
1126     }
1127     s->ignore_keys = false;
1128 }
1129 
1130 static void gd_accel_switch_vc(void *opaque)
1131 {
1132     VirtualConsole *vc = opaque;
1133 
1134     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(vc->menu_item), TRUE);
1135 #if !GTK_CHECK_VERSION(3, 0, 0)
1136     /* GTK2 sends the accel key to the target console - ignore this until */
1137     vc->s->ignore_keys = true;
1138 #endif
1139 }
1140 
1141 static void gd_menu_show_tabs(GtkMenuItem *item, void *opaque)
1142 {
1143     GtkDisplayState *s = opaque;
1144     VirtualConsole *vc = gd_vc_find_current(s);
1145 
1146     if (gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->show_tabs_item))) {
1147         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), TRUE);
1148     } else {
1149         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), FALSE);
1150     }
1151     gd_update_windowsize(vc);
1152 }
1153 
1154 static gboolean gd_tab_window_close(GtkWidget *widget, GdkEvent *event,
1155                                     void *opaque)
1156 {
1157     VirtualConsole *vc = opaque;
1158     GtkDisplayState *s = vc->s;
1159 
1160     gtk_widget_set_sensitive(vc->menu_item, true);
1161     gd_widget_reparent(vc->window, s->notebook, vc->tab_item);
1162     gtk_notebook_set_tab_label_text(GTK_NOTEBOOK(s->notebook),
1163                                     vc->tab_item, vc->label);
1164     gtk_widget_destroy(vc->window);
1165     vc->window = NULL;
1166     return TRUE;
1167 }
1168 
1169 static gboolean gd_win_grab(void *opaque)
1170 {
1171     VirtualConsole *vc = opaque;
1172 
1173     fprintf(stderr, "%s: %s\n", __func__, vc->label);
1174     if (vc->s->ptr_owner) {
1175         gd_ungrab_pointer(vc->s);
1176     } else {
1177         gd_grab_pointer(vc, "user-request-detached-tab");
1178     }
1179     return TRUE;
1180 }
1181 
1182 static void gd_menu_untabify(GtkMenuItem *item, void *opaque)
1183 {
1184     GtkDisplayState *s = opaque;
1185     VirtualConsole *vc = gd_vc_find_current(s);
1186 
1187     if (vc->type == GD_VC_GFX &&
1188         qemu_console_is_graphic(vc->gfx.dcl.con)) {
1189         gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
1190                                        FALSE);
1191     }
1192     if (!vc->window) {
1193         gtk_widget_set_sensitive(vc->menu_item, false);
1194         vc->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1195         gd_widget_reparent(s->notebook, vc->window, vc->tab_item);
1196 
1197         g_signal_connect(vc->window, "delete-event",
1198                          G_CALLBACK(gd_tab_window_close), vc);
1199         gtk_widget_show_all(vc->window);
1200 
1201         if (qemu_console_is_graphic(vc->gfx.dcl.con)) {
1202             GtkAccelGroup *ag = gtk_accel_group_new();
1203             gtk_window_add_accel_group(GTK_WINDOW(vc->window), ag);
1204 
1205             GClosure *cb = g_cclosure_new_swap(G_CALLBACK(gd_win_grab),
1206                                                vc, NULL);
1207             gtk_accel_group_connect(ag, GDK_KEY_g, HOTKEY_MODIFIERS, 0, cb);
1208         }
1209 
1210         gd_update_geometry_hints(vc);
1211         gd_update_caption(s);
1212     }
1213 }
1214 
1215 static void gd_menu_full_screen(GtkMenuItem *item, void *opaque)
1216 {
1217     GtkDisplayState *s = opaque;
1218     VirtualConsole *vc = gd_vc_find_current(s);
1219 
1220     if (!s->full_screen) {
1221         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), FALSE);
1222         gtk_widget_hide(s->menu_bar);
1223         if (vc->type == GD_VC_GFX) {
1224             gtk_widget_set_size_request(vc->gfx.drawing_area, -1, -1);
1225         }
1226         gtk_window_fullscreen(GTK_WINDOW(s->window));
1227         s->full_screen = TRUE;
1228     } else {
1229         gtk_window_unfullscreen(GTK_WINDOW(s->window));
1230         gd_menu_show_tabs(GTK_MENU_ITEM(s->show_tabs_item), s);
1231         gtk_widget_show(s->menu_bar);
1232         s->full_screen = FALSE;
1233         if (vc->type == GD_VC_GFX) {
1234             vc->gfx.scale_x = 1.0;
1235             vc->gfx.scale_y = 1.0;
1236             gd_update_windowsize(vc);
1237         }
1238     }
1239 
1240     gd_update_cursor(vc);
1241 }
1242 
1243 static void gd_accel_full_screen(void *opaque)
1244 {
1245     GtkDisplayState *s = opaque;
1246     gtk_menu_item_activate(GTK_MENU_ITEM(s->full_screen_item));
1247 }
1248 
1249 static void gd_menu_zoom_in(GtkMenuItem *item, void *opaque)
1250 {
1251     GtkDisplayState *s = opaque;
1252     VirtualConsole *vc = gd_vc_find_current(s);
1253 
1254     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->zoom_fit_item),
1255                                    FALSE);
1256 
1257     vc->gfx.scale_x += VC_SCALE_STEP;
1258     vc->gfx.scale_y += VC_SCALE_STEP;
1259 
1260     gd_update_windowsize(vc);
1261 }
1262 
1263 static void gd_menu_zoom_out(GtkMenuItem *item, void *opaque)
1264 {
1265     GtkDisplayState *s = opaque;
1266     VirtualConsole *vc = gd_vc_find_current(s);
1267 
1268     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->zoom_fit_item),
1269                                    FALSE);
1270 
1271     vc->gfx.scale_x -= VC_SCALE_STEP;
1272     vc->gfx.scale_y -= VC_SCALE_STEP;
1273 
1274     vc->gfx.scale_x = MAX(vc->gfx.scale_x, VC_SCALE_MIN);
1275     vc->gfx.scale_y = MAX(vc->gfx.scale_y, VC_SCALE_MIN);
1276 
1277     gd_update_windowsize(vc);
1278 }
1279 
1280 static void gd_menu_zoom_fixed(GtkMenuItem *item, void *opaque)
1281 {
1282     GtkDisplayState *s = opaque;
1283     VirtualConsole *vc = gd_vc_find_current(s);
1284 
1285     vc->gfx.scale_x = 1.0;
1286     vc->gfx.scale_y = 1.0;
1287 
1288     gd_update_windowsize(vc);
1289 }
1290 
1291 static void gd_menu_zoom_fit(GtkMenuItem *item, void *opaque)
1292 {
1293     GtkDisplayState *s = opaque;
1294     VirtualConsole *vc = gd_vc_find_current(s);
1295 
1296     if (gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->zoom_fit_item))) {
1297         s->free_scale = TRUE;
1298     } else {
1299         s->free_scale = FALSE;
1300         vc->gfx.scale_x = 1.0;
1301         vc->gfx.scale_y = 1.0;
1302     }
1303 
1304     gd_update_windowsize(vc);
1305     gd_update_full_redraw(vc);
1306 }
1307 
1308 #if GTK_CHECK_VERSION(3, 0, 0)
1309 static void gd_grab_devices(VirtualConsole *vc, bool grab,
1310                             GdkInputSource source, GdkEventMask mask,
1311                             GdkCursor *cursor)
1312 {
1313     GdkDisplay *display = gtk_widget_get_display(vc->gfx.drawing_area);
1314     GdkDeviceManager *mgr = gdk_display_get_device_manager(display);
1315     GList *devs = gdk_device_manager_list_devices(mgr, GDK_DEVICE_TYPE_MASTER);
1316     GList *tmp = devs;
1317 
1318     for (tmp = devs; tmp; tmp = tmp->next) {
1319         GdkDevice *dev = tmp->data;
1320         if (gdk_device_get_source(dev) != source) {
1321             continue;
1322         }
1323         if (grab) {
1324             GdkWindow *win = gtk_widget_get_window(vc->gfx.drawing_area);
1325             gdk_device_grab(dev, win, GDK_OWNERSHIP_NONE, FALSE,
1326                             mask, cursor, GDK_CURRENT_TIME);
1327         } else {
1328             gdk_device_ungrab(dev, GDK_CURRENT_TIME);
1329         }
1330     }
1331     g_list_free(devs);
1332 }
1333 #endif
1334 
1335 static void gd_grab_keyboard(VirtualConsole *vc, const char *reason)
1336 {
1337     if (vc->s->kbd_owner) {
1338         if (vc->s->kbd_owner == vc) {
1339             return;
1340         } else {
1341             gd_ungrab_keyboard(vc->s);
1342         }
1343     }
1344 
1345 #if GTK_CHECK_VERSION(3, 0, 0)
1346     gd_grab_devices(vc, true, GDK_SOURCE_KEYBOARD,
1347                    GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
1348                    NULL);
1349 #else
1350     gdk_keyboard_grab(gtk_widget_get_window(vc->gfx.drawing_area),
1351                       FALSE,
1352                       GDK_CURRENT_TIME);
1353 #endif
1354     vc->s->kbd_owner = vc;
1355     gd_update_caption(vc->s);
1356     trace_gd_grab(vc->label, "kbd", reason);
1357 }
1358 
1359 static void gd_ungrab_keyboard(GtkDisplayState *s)
1360 {
1361     VirtualConsole *vc = s->kbd_owner;
1362 
1363     if (vc == NULL) {
1364         return;
1365     }
1366     s->kbd_owner = NULL;
1367 
1368 #if GTK_CHECK_VERSION(3, 0, 0)
1369     gd_grab_devices(vc, false, GDK_SOURCE_KEYBOARD, 0, NULL);
1370 #else
1371     gdk_keyboard_ungrab(GDK_CURRENT_TIME);
1372 #endif
1373     gd_update_caption(s);
1374     trace_gd_ungrab(vc->label, "kbd");
1375 }
1376 
1377 static void gd_grab_pointer(VirtualConsole *vc, const char *reason)
1378 {
1379     GdkDisplay *display = gtk_widget_get_display(vc->gfx.drawing_area);
1380 
1381     if (vc->s->ptr_owner) {
1382         if (vc->s->ptr_owner == vc) {
1383             return;
1384         } else {
1385             gd_ungrab_pointer(vc->s);
1386         }
1387     }
1388 
1389 #if GTK_CHECK_VERSION(3, 0, 0)
1390     GdkDeviceManager *mgr = gdk_display_get_device_manager(display);
1391     gd_grab_devices(vc, true, GDK_SOURCE_MOUSE,
1392                     GDK_POINTER_MOTION_MASK |
1393                     GDK_BUTTON_PRESS_MASK |
1394                     GDK_BUTTON_RELEASE_MASK |
1395                     GDK_BUTTON_MOTION_MASK |
1396                     GDK_SCROLL_MASK,
1397                     vc->s->null_cursor);
1398     gdk_device_get_position(gdk_device_manager_get_client_pointer(mgr),
1399                             NULL, &vc->s->grab_x_root, &vc->s->grab_y_root);
1400 #else
1401     gdk_pointer_grab(gtk_widget_get_window(vc->gfx.drawing_area),
1402                      FALSE, /* All events to come to our window directly */
1403                      GDK_POINTER_MOTION_MASK |
1404                      GDK_BUTTON_PRESS_MASK |
1405                      GDK_BUTTON_RELEASE_MASK |
1406                      GDK_BUTTON_MOTION_MASK |
1407                      GDK_SCROLL_MASK,
1408                      NULL, /* Allow cursor to move over entire desktop */
1409                      vc->s->null_cursor,
1410                      GDK_CURRENT_TIME);
1411     gdk_display_get_pointer(display, NULL,
1412                             &vc->s->grab_x_root, &vc->s->grab_y_root, NULL);
1413 #endif
1414     vc->s->ptr_owner = vc;
1415     gd_update_caption(vc->s);
1416     trace_gd_grab(vc->label, "ptr", reason);
1417 }
1418 
1419 static void gd_ungrab_pointer(GtkDisplayState *s)
1420 {
1421     VirtualConsole *vc = s->ptr_owner;
1422 
1423     if (vc == NULL) {
1424         return;
1425     }
1426     s->ptr_owner = NULL;
1427 
1428     GdkDisplay *display = gtk_widget_get_display(vc->gfx.drawing_area);
1429 #if GTK_CHECK_VERSION(3, 0, 0)
1430     GdkDeviceManager *mgr = gdk_display_get_device_manager(display);
1431     gd_grab_devices(vc, false, GDK_SOURCE_MOUSE, 0, NULL);
1432     gdk_device_warp(gdk_device_manager_get_client_pointer(mgr),
1433                     gtk_widget_get_screen(vc->gfx.drawing_area),
1434                     vc->s->grab_x_root, vc->s->grab_y_root);
1435 #else
1436     gdk_pointer_ungrab(GDK_CURRENT_TIME);
1437     gdk_display_warp_pointer(display,
1438                              gtk_widget_get_screen(vc->gfx.drawing_area),
1439                              vc->s->grab_x_root, vc->s->grab_y_root);
1440 #endif
1441     gd_update_caption(s);
1442     trace_gd_ungrab(vc->label, "ptr");
1443 }
1444 
1445 static void gd_menu_grab_input(GtkMenuItem *item, void *opaque)
1446 {
1447     GtkDisplayState *s = opaque;
1448     VirtualConsole *vc = gd_vc_find_current(s);
1449 
1450     if (gd_is_grab_active(s)) {
1451         gd_grab_keyboard(vc, "user-request-main-window");
1452         gd_grab_pointer(vc, "user-request-main-window");
1453     } else {
1454         gd_ungrab_keyboard(s);
1455         gd_ungrab_pointer(s);
1456     }
1457 
1458     gd_update_cursor(vc);
1459 }
1460 
1461 static void gd_change_page(GtkNotebook *nb, gpointer arg1, guint arg2,
1462                            gpointer data)
1463 {
1464     GtkDisplayState *s = data;
1465     VirtualConsole *vc;
1466     gboolean on_vga;
1467 
1468     if (!gtk_widget_get_realized(s->notebook)) {
1469         return;
1470     }
1471 
1472 #ifdef VTE_RESIZE_HACK
1473     vc = gd_vc_find_current(s);
1474     if (vc && vc->type == GD_VC_VTE) {
1475         gtk_widget_hide(vc->vte.terminal);
1476     }
1477 #endif
1478     vc = gd_vc_find_by_page(s, arg2);
1479     if (!vc) {
1480         return;
1481     }
1482 #ifdef VTE_RESIZE_HACK
1483     if (vc->type == GD_VC_VTE) {
1484         gtk_widget_show(vc->vte.terminal);
1485     }
1486 #endif
1487     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(vc->menu_item),
1488                                    TRUE);
1489     on_vga = (vc->type == GD_VC_GFX &&
1490               qemu_console_is_graphic(vc->gfx.dcl.con));
1491     if (!on_vga) {
1492         gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
1493                                        FALSE);
1494     } else if (s->full_screen) {
1495         gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
1496                                        TRUE);
1497     }
1498     gtk_widget_set_sensitive(s->grab_item, on_vga);
1499 
1500     gd_update_windowsize(vc);
1501     gd_update_cursor(vc);
1502 }
1503 
1504 static gboolean gd_enter_event(GtkWidget *widget, GdkEventCrossing *crossing,
1505                                gpointer opaque)
1506 {
1507     VirtualConsole *vc = opaque;
1508     GtkDisplayState *s = vc->s;
1509 
1510     if (gd_grab_on_hover(s)) {
1511         gd_grab_keyboard(vc, "grab-on-hover");
1512     }
1513     return TRUE;
1514 }
1515 
1516 static gboolean gd_leave_event(GtkWidget *widget, GdkEventCrossing *crossing,
1517                                gpointer opaque)
1518 {
1519     VirtualConsole *vc = opaque;
1520     GtkDisplayState *s = vc->s;
1521 
1522     if (gd_grab_on_hover(s)) {
1523         gd_ungrab_keyboard(s);
1524     }
1525     return TRUE;
1526 }
1527 
1528 static gboolean gd_focus_out_event(GtkWidget *widget,
1529                                    GdkEventCrossing *crossing, gpointer opaque)
1530 {
1531     VirtualConsole *vc = opaque;
1532     GtkDisplayState *s = vc->s;
1533 
1534     gtk_release_modifiers(s);
1535     return TRUE;
1536 }
1537 
1538 static gboolean gd_configure(GtkWidget *widget,
1539                              GdkEventConfigure *cfg, gpointer opaque)
1540 {
1541     VirtualConsole *vc = opaque;
1542 
1543     gd_set_ui_info(vc, cfg->width, cfg->height);
1544     return FALSE;
1545 }
1546 
1547 /** Virtual Console Callbacks **/
1548 
1549 static GSList *gd_vc_menu_init(GtkDisplayState *s, VirtualConsole *vc,
1550                                int idx, GSList *group, GtkWidget *view_menu)
1551 {
1552     vc->menu_item = gtk_radio_menu_item_new_with_mnemonic(group, vc->label);
1553     gtk_accel_group_connect(s->accel_group, GDK_KEY_1 + idx,
1554             HOTKEY_MODIFIERS, 0,
1555             g_cclosure_new_swap(G_CALLBACK(gd_accel_switch_vc), vc, NULL));
1556 #if GTK_CHECK_VERSION(3, 8, 0)
1557     gtk_accel_label_set_accel(
1558             GTK_ACCEL_LABEL(gtk_bin_get_child(GTK_BIN(vc->menu_item))),
1559             GDK_KEY_1 + idx, HOTKEY_MODIFIERS);
1560 #endif
1561 
1562     g_signal_connect(vc->menu_item, "activate",
1563                      G_CALLBACK(gd_menu_switch_vc), s);
1564     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), vc->menu_item);
1565 
1566     group = gtk_radio_menu_item_get_group(GTK_RADIO_MENU_ITEM(vc->menu_item));
1567     return group;
1568 }
1569 
1570 #if defined(CONFIG_VTE)
1571 static void gd_vc_adjustment_changed(GtkAdjustment *adjustment, void *opaque)
1572 {
1573     VirtualConsole *vc = opaque;
1574 
1575     if (gtk_adjustment_get_upper(adjustment) >
1576         gtk_adjustment_get_page_size(adjustment)) {
1577         gtk_widget_show(vc->vte.scrollbar);
1578     } else {
1579         gtk_widget_hide(vc->vte.scrollbar);
1580     }
1581 }
1582 
1583 static int gd_vc_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1584 {
1585     VirtualConsole *vc = chr->opaque;
1586 
1587     vte_terminal_feed(VTE_TERMINAL(vc->vte.terminal), (const char *)buf, len);
1588     return len;
1589 }
1590 
1591 static void gd_vc_chr_set_echo(CharDriverState *chr, bool echo)
1592 {
1593     VirtualConsole *vc = chr->opaque;
1594 
1595     vc->vte.echo = echo;
1596 }
1597 
1598 static int nb_vcs;
1599 static CharDriverState *vcs[MAX_VCS];
1600 
1601 static CharDriverState *gd_vc_handler(ChardevVC *unused, Error **errp)
1602 {
1603     CharDriverState *chr;
1604 
1605     chr = g_malloc0(sizeof(*chr));
1606     chr->chr_write = gd_vc_chr_write;
1607     chr->chr_set_echo = gd_vc_chr_set_echo;
1608 
1609     /* Temporary, until gd_vc_vte_init runs.  */
1610     chr->opaque = g_new(VirtualConsole, 1);
1611 
1612     /* defer OPENED events until our vc is fully initialized */
1613     chr->explicit_be_open = true;
1614 
1615     vcs[nb_vcs++] = chr;
1616 
1617     return chr;
1618 }
1619 
1620 static gboolean gd_vc_in(VteTerminal *terminal, gchar *text, guint size,
1621                          gpointer user_data)
1622 {
1623     VirtualConsole *vc = user_data;
1624 
1625     if (vc->vte.echo) {
1626         VteTerminal *term = VTE_TERMINAL(vc->vte.terminal);
1627         int i;
1628         for (i = 0; i < size; i++) {
1629             uint8_t c = text[i];
1630             if (c >= 128 || isprint(c)) {
1631                 /* 8-bit characters are considered printable.  */
1632                 vte_terminal_feed(term, &text[i], 1);
1633             } else if (c == '\r' || c == '\n') {
1634                 vte_terminal_feed(term, "\r\n", 2);
1635             } else {
1636                 char ctrl[2] = { '^', 0};
1637                 ctrl[1] = text[i] ^ 64;
1638                 vte_terminal_feed(term, ctrl, 2);
1639             }
1640         }
1641     }
1642 
1643     qemu_chr_be_write(vc->vte.chr, (uint8_t  *)text, (unsigned int)size);
1644     return TRUE;
1645 }
1646 
1647 static GSList *gd_vc_vte_init(GtkDisplayState *s, VirtualConsole *vc,
1648                               CharDriverState *chr, int idx,
1649                               GSList *group, GtkWidget *view_menu)
1650 {
1651     char buffer[32];
1652     GtkWidget *box;
1653     GtkWidget *scrollbar;
1654     GtkAdjustment *vadjustment;
1655     VirtualConsole *tmp_vc = chr->opaque;
1656 
1657     vc->s = s;
1658     vc->vte.echo = tmp_vc->vte.echo;
1659 
1660     vc->vte.chr = chr;
1661     chr->opaque = vc;
1662     g_free(tmp_vc);
1663 
1664     snprintf(buffer, sizeof(buffer), "vc%d", idx);
1665     vc->label = g_strdup_printf("%s", vc->vte.chr->label
1666                                 ? vc->vte.chr->label : buffer);
1667     group = gd_vc_menu_init(s, vc, idx, group, view_menu);
1668 
1669     vc->vte.terminal = vte_terminal_new();
1670     g_signal_connect(vc->vte.terminal, "commit", G_CALLBACK(gd_vc_in), vc);
1671 
1672     /* The documentation says that the default is UTF-8, but actually it is
1673      * 7-bit ASCII at least in VTE 0.38.
1674      */
1675 #if VTE_CHECK_VERSION(0, 40, 0)
1676     vte_terminal_set_encoding(VTE_TERMINAL(vc->vte.terminal), "UTF-8", NULL);
1677 #else
1678     vte_terminal_set_encoding(VTE_TERMINAL(vc->vte.terminal), "UTF-8");
1679 #endif
1680 
1681     vte_terminal_set_scrollback_lines(VTE_TERMINAL(vc->vte.terminal), -1);
1682     vte_terminal_set_size(VTE_TERMINAL(vc->vte.terminal),
1683                           VC_TERM_X_MIN, VC_TERM_Y_MIN);
1684 
1685 #if VTE_CHECK_VERSION(0, 28, 0) && GTK_CHECK_VERSION(3, 0, 0)
1686     vadjustment = gtk_scrollable_get_vadjustment
1687         (GTK_SCROLLABLE(vc->vte.terminal));
1688 #else
1689     vadjustment = vte_terminal_get_adjustment(VTE_TERMINAL(vc->vte.terminal));
1690 #endif
1691 
1692 #if GTK_CHECK_VERSION(3, 0, 0)
1693     box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 2);
1694     scrollbar = gtk_scrollbar_new(GTK_ORIENTATION_VERTICAL, vadjustment);
1695 #else
1696     box = gtk_hbox_new(false, 2);
1697     scrollbar = gtk_vscrollbar_new(vadjustment);
1698 #endif
1699 
1700     gtk_box_pack_start(GTK_BOX(box), vc->vte.terminal, TRUE, TRUE, 0);
1701     gtk_box_pack_start(GTK_BOX(box), scrollbar, FALSE, FALSE, 0);
1702 
1703     vc->vte.box = box;
1704     vc->vte.scrollbar = scrollbar;
1705 
1706     g_signal_connect(vadjustment, "changed",
1707                      G_CALLBACK(gd_vc_adjustment_changed), vc);
1708 
1709     vc->type = GD_VC_VTE;
1710     vc->tab_item = box;
1711     vc->focus = vc->vte.terminal;
1712     gtk_notebook_append_page(GTK_NOTEBOOK(s->notebook), vc->tab_item,
1713                              gtk_label_new(vc->label));
1714 
1715     qemu_chr_be_generic_open(vc->vte.chr);
1716     if (vc->vte.chr->init) {
1717         vc->vte.chr->init(vc->vte.chr);
1718     }
1719 
1720     return group;
1721 }
1722 
1723 static void gd_vcs_init(GtkDisplayState *s, GSList *group,
1724                         GtkWidget *view_menu)
1725 {
1726     int i;
1727 
1728     for (i = 0; i < nb_vcs; i++) {
1729         VirtualConsole *vc = &s->vc[s->nb_vcs];
1730         group = gd_vc_vte_init(s, vc, vcs[i], s->nb_vcs, group, view_menu);
1731         s->nb_vcs++;
1732     }
1733 }
1734 #endif /* CONFIG_VTE */
1735 
1736 /** Window Creation **/
1737 
1738 static void gd_connect_vc_gfx_signals(VirtualConsole *vc)
1739 {
1740 #if GTK_CHECK_VERSION(3, 0, 0)
1741     g_signal_connect(vc->gfx.drawing_area, "draw",
1742                      G_CALLBACK(gd_draw_event), vc);
1743 #if defined(CONFIG_GTK_GL)
1744     if (display_opengl) {
1745         /* wire up GtkGlArea events */
1746         g_signal_connect(vc->gfx.drawing_area, "render",
1747                          G_CALLBACK(gd_render_event), vc);
1748         g_signal_connect(vc->gfx.drawing_area, "resize",
1749                          G_CALLBACK(gd_resize_event), vc);
1750     }
1751 #endif
1752 #else
1753     g_signal_connect(vc->gfx.drawing_area, "expose-event",
1754                      G_CALLBACK(gd_expose_event), vc);
1755 #endif
1756     if (qemu_console_is_graphic(vc->gfx.dcl.con)) {
1757         g_signal_connect(vc->gfx.drawing_area, "event",
1758                          G_CALLBACK(gd_event), vc);
1759         g_signal_connect(vc->gfx.drawing_area, "button-press-event",
1760                          G_CALLBACK(gd_button_event), vc);
1761         g_signal_connect(vc->gfx.drawing_area, "button-release-event",
1762                          G_CALLBACK(gd_button_event), vc);
1763         g_signal_connect(vc->gfx.drawing_area, "scroll-event",
1764                          G_CALLBACK(gd_scroll_event), vc);
1765         g_signal_connect(vc->gfx.drawing_area, "key-press-event",
1766                          G_CALLBACK(gd_key_event), vc);
1767         g_signal_connect(vc->gfx.drawing_area, "key-release-event",
1768                          G_CALLBACK(gd_key_event), vc);
1769 
1770         g_signal_connect(vc->gfx.drawing_area, "enter-notify-event",
1771                          G_CALLBACK(gd_enter_event), vc);
1772         g_signal_connect(vc->gfx.drawing_area, "leave-notify-event",
1773                          G_CALLBACK(gd_leave_event), vc);
1774         g_signal_connect(vc->gfx.drawing_area, "focus-out-event",
1775                          G_CALLBACK(gd_focus_out_event), vc);
1776         g_signal_connect(vc->gfx.drawing_area, "configure-event",
1777                          G_CALLBACK(gd_configure), vc);
1778     } else {
1779         g_signal_connect(vc->gfx.drawing_area, "key-press-event",
1780                          G_CALLBACK(gd_text_key_down), vc);
1781     }
1782 }
1783 
1784 static void gd_connect_signals(GtkDisplayState *s)
1785 {
1786     g_signal_connect(s->show_tabs_item, "activate",
1787                      G_CALLBACK(gd_menu_show_tabs), s);
1788     g_signal_connect(s->untabify_item, "activate",
1789                      G_CALLBACK(gd_menu_untabify), s);
1790 
1791     g_signal_connect(s->window, "delete-event",
1792                      G_CALLBACK(gd_window_close), s);
1793 
1794     g_signal_connect(s->pause_item, "activate",
1795                      G_CALLBACK(gd_menu_pause), s);
1796     g_signal_connect(s->reset_item, "activate",
1797                      G_CALLBACK(gd_menu_reset), s);
1798     g_signal_connect(s->powerdown_item, "activate",
1799                      G_CALLBACK(gd_menu_powerdown), s);
1800     g_signal_connect(s->quit_item, "activate",
1801                      G_CALLBACK(gd_menu_quit), s);
1802     g_signal_connect(s->full_screen_item, "activate",
1803                      G_CALLBACK(gd_menu_full_screen), s);
1804     g_signal_connect(s->zoom_in_item, "activate",
1805                      G_CALLBACK(gd_menu_zoom_in), s);
1806     g_signal_connect(s->zoom_out_item, "activate",
1807                      G_CALLBACK(gd_menu_zoom_out), s);
1808     g_signal_connect(s->zoom_fixed_item, "activate",
1809                      G_CALLBACK(gd_menu_zoom_fixed), s);
1810     g_signal_connect(s->zoom_fit_item, "activate",
1811                      G_CALLBACK(gd_menu_zoom_fit), s);
1812     g_signal_connect(s->grab_item, "activate",
1813                      G_CALLBACK(gd_menu_grab_input), s);
1814     g_signal_connect(s->notebook, "switch-page",
1815                      G_CALLBACK(gd_change_page), s);
1816 }
1817 
1818 static GtkWidget *gd_create_menu_machine(GtkDisplayState *s)
1819 {
1820     GtkWidget *machine_menu;
1821     GtkWidget *separator;
1822 
1823     machine_menu = gtk_menu_new();
1824     gtk_menu_set_accel_group(GTK_MENU(machine_menu), s->accel_group);
1825 
1826     s->pause_item = gtk_check_menu_item_new_with_mnemonic(_("_Pause"));
1827     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), s->pause_item);
1828 
1829     separator = gtk_separator_menu_item_new();
1830     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), separator);
1831 
1832     s->reset_item = gtk_menu_item_new_with_mnemonic(_("_Reset"));
1833     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), s->reset_item);
1834 
1835     s->powerdown_item = gtk_menu_item_new_with_mnemonic(_("Power _Down"));
1836     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), s->powerdown_item);
1837 
1838     separator = gtk_separator_menu_item_new();
1839     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), separator);
1840 
1841     s->quit_item = gtk_menu_item_new_with_mnemonic(_("_Quit"));
1842     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->quit_item),
1843                                  "<QEMU>/Machine/Quit");
1844     gtk_accel_map_add_entry("<QEMU>/Machine/Quit",
1845                             GDK_KEY_q, HOTKEY_MODIFIERS);
1846     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), s->quit_item);
1847 
1848     return machine_menu;
1849 }
1850 
1851 static GSList *gd_vc_gfx_init(GtkDisplayState *s, VirtualConsole *vc,
1852                               QemuConsole *con, int idx,
1853                               GSList *group, GtkWidget *view_menu)
1854 {
1855     vc->label = qemu_console_get_label(con);
1856     vc->s = s;
1857     vc->gfx.scale_x = 1.0;
1858     vc->gfx.scale_y = 1.0;
1859 
1860 #if defined(CONFIG_OPENGL)
1861     if (display_opengl) {
1862 #if defined(CONFIG_GTK_GL)
1863         vc->gfx.drawing_area = gtk_gl_area_new();
1864         vc->gfx.dcl.ops = &dcl_gl_area_ops;
1865 #else
1866         vc->gfx.drawing_area = gtk_drawing_area_new();
1867         /*
1868          * gtk_widget_set_double_buffered() was deprecated in 3.14.
1869          * It is required for opengl rendering on X11 though.  A
1870          * proper replacement (native opengl support) is only
1871          * available in 3.16+.  Silence the warning if possible.
1872          */
1873 #ifdef CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE
1874 #pragma GCC diagnostic push
1875 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
1876 #endif
1877         gtk_widget_set_double_buffered(vc->gfx.drawing_area, FALSE);
1878 #ifdef CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE
1879 #pragma GCC diagnostic pop
1880 #endif
1881         vc->gfx.dcl.ops = &dcl_egl_ops;
1882 #endif /* CONFIG_GTK_GL */
1883     } else
1884 #endif
1885     {
1886         vc->gfx.drawing_area = gtk_drawing_area_new();
1887         vc->gfx.dcl.ops = &dcl_ops;
1888     }
1889 
1890 
1891     gtk_widget_add_events(vc->gfx.drawing_area,
1892                           GDK_POINTER_MOTION_MASK |
1893                           GDK_BUTTON_PRESS_MASK |
1894                           GDK_BUTTON_RELEASE_MASK |
1895                           GDK_BUTTON_MOTION_MASK |
1896                           GDK_ENTER_NOTIFY_MASK |
1897                           GDK_LEAVE_NOTIFY_MASK |
1898                           GDK_SCROLL_MASK |
1899                           GDK_KEY_PRESS_MASK);
1900     gtk_widget_set_can_focus(vc->gfx.drawing_area, TRUE);
1901 
1902     vc->type = GD_VC_GFX;
1903     vc->tab_item = vc->gfx.drawing_area;
1904     vc->focus = vc->gfx.drawing_area;
1905     gtk_notebook_append_page(GTK_NOTEBOOK(s->notebook),
1906                              vc->tab_item, gtk_label_new(vc->label));
1907 
1908     vc->gfx.dcl.con = con;
1909     register_displaychangelistener(&vc->gfx.dcl);
1910 
1911     gd_connect_vc_gfx_signals(vc);
1912     group = gd_vc_menu_init(s, vc, idx, group, view_menu);
1913 
1914     if (dpy_ui_info_supported(vc->gfx.dcl.con)) {
1915         gtk_menu_item_activate(GTK_MENU_ITEM(s->zoom_fit_item));
1916         s->free_scale = true;
1917     }
1918 
1919     return group;
1920 }
1921 
1922 static GtkWidget *gd_create_menu_view(GtkDisplayState *s)
1923 {
1924     GSList *group = NULL;
1925     GtkWidget *view_menu;
1926     GtkWidget *separator;
1927     QemuConsole *con;
1928     int vc;
1929 
1930     view_menu = gtk_menu_new();
1931     gtk_menu_set_accel_group(GTK_MENU(view_menu), s->accel_group);
1932 
1933     s->full_screen_item = gtk_menu_item_new_with_mnemonic(_("_Fullscreen"));
1934 
1935     gtk_accel_group_connect(s->accel_group, GDK_KEY_f, HOTKEY_MODIFIERS, 0,
1936             g_cclosure_new_swap(G_CALLBACK(gd_accel_full_screen), s, NULL));
1937 #if GTK_CHECK_VERSION(3, 8, 0)
1938     gtk_accel_label_set_accel(
1939             GTK_ACCEL_LABEL(gtk_bin_get_child(GTK_BIN(s->full_screen_item))),
1940             GDK_KEY_f, HOTKEY_MODIFIERS);
1941 #endif
1942     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->full_screen_item);
1943 
1944     separator = gtk_separator_menu_item_new();
1945     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), separator);
1946 
1947     s->zoom_in_item = gtk_menu_item_new_with_mnemonic(_("Zoom _In"));
1948     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->zoom_in_item),
1949                                  "<QEMU>/View/Zoom In");
1950     gtk_accel_map_add_entry("<QEMU>/View/Zoom In", GDK_KEY_plus,
1951                             HOTKEY_MODIFIERS);
1952     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->zoom_in_item);
1953 
1954     s->zoom_out_item = gtk_menu_item_new_with_mnemonic(_("Zoom _Out"));
1955     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->zoom_out_item),
1956                                  "<QEMU>/View/Zoom Out");
1957     gtk_accel_map_add_entry("<QEMU>/View/Zoom Out", GDK_KEY_minus,
1958                             HOTKEY_MODIFIERS);
1959     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->zoom_out_item);
1960 
1961     s->zoom_fixed_item = gtk_menu_item_new_with_mnemonic(_("Best _Fit"));
1962     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->zoom_fixed_item),
1963                                  "<QEMU>/View/Zoom Fixed");
1964     gtk_accel_map_add_entry("<QEMU>/View/Zoom Fixed", GDK_KEY_0,
1965                             HOTKEY_MODIFIERS);
1966     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->zoom_fixed_item);
1967 
1968     s->zoom_fit_item = gtk_check_menu_item_new_with_mnemonic(_("Zoom To _Fit"));
1969     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->zoom_fit_item);
1970 
1971     separator = gtk_separator_menu_item_new();
1972     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), separator);
1973 
1974     s->grab_on_hover_item = gtk_check_menu_item_new_with_mnemonic(_("Grab On _Hover"));
1975     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->grab_on_hover_item);
1976 
1977     s->grab_item = gtk_check_menu_item_new_with_mnemonic(_("_Grab Input"));
1978     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->grab_item),
1979                                  "<QEMU>/View/Grab Input");
1980     gtk_accel_map_add_entry("<QEMU>/View/Grab Input", GDK_KEY_g,
1981                             HOTKEY_MODIFIERS);
1982     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->grab_item);
1983 
1984     separator = gtk_separator_menu_item_new();
1985     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), separator);
1986 
1987     /* gfx */
1988     for (vc = 0;; vc++) {
1989         con = qemu_console_lookup_by_index(vc);
1990         if (!con) {
1991             break;
1992         }
1993         group = gd_vc_gfx_init(s, &s->vc[vc], con,
1994                                vc, group, view_menu);
1995         s->nb_vcs++;
1996     }
1997 
1998 #if defined(CONFIG_VTE)
1999     /* vte */
2000     gd_vcs_init(s, group, view_menu);
2001 #endif
2002 
2003     separator = gtk_separator_menu_item_new();
2004     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), separator);
2005 
2006     s->show_tabs_item = gtk_check_menu_item_new_with_mnemonic(_("Show _Tabs"));
2007     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->show_tabs_item);
2008 
2009     s->untabify_item = gtk_menu_item_new_with_mnemonic(_("Detach Tab"));
2010     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->untabify_item);
2011 
2012     return view_menu;
2013 }
2014 
2015 static void gd_create_menus(GtkDisplayState *s)
2016 {
2017     s->accel_group = gtk_accel_group_new();
2018     s->machine_menu = gd_create_menu_machine(s);
2019     s->view_menu = gd_create_menu_view(s);
2020 
2021     s->machine_menu_item = gtk_menu_item_new_with_mnemonic(_("_Machine"));
2022     gtk_menu_item_set_submenu(GTK_MENU_ITEM(s->machine_menu_item),
2023                               s->machine_menu);
2024     gtk_menu_shell_append(GTK_MENU_SHELL(s->menu_bar), s->machine_menu_item);
2025 
2026     s->view_menu_item = gtk_menu_item_new_with_mnemonic(_("_View"));
2027     gtk_menu_item_set_submenu(GTK_MENU_ITEM(s->view_menu_item), s->view_menu);
2028     gtk_menu_shell_append(GTK_MENU_SHELL(s->menu_bar), s->view_menu_item);
2029 
2030     g_object_set_data(G_OBJECT(s->window), "accel_group", s->accel_group);
2031     gtk_window_add_accel_group(GTK_WINDOW(s->window), s->accel_group);
2032 }
2033 
2034 static void gd_set_keycode_type(GtkDisplayState *s)
2035 {
2036 #ifdef GDK_WINDOWING_X11
2037     GdkDisplay *display = gtk_widget_get_display(s->window);
2038     if (GDK_IS_X11_DISPLAY(display)) {
2039         Display *x11_display = gdk_x11_display_get_xdisplay(display);
2040         XkbDescPtr desc = XkbGetKeyboard(x11_display, XkbGBN_AllComponentsMask,
2041                                          XkbUseCoreKbd);
2042         char *keycodes = NULL;
2043 
2044         if (desc && desc->names) {
2045             keycodes = XGetAtomName(x11_display, desc->names->keycodes);
2046         }
2047         if (keycodes == NULL) {
2048             fprintf(stderr, "could not lookup keycode name\n");
2049         } else if (strstart(keycodes, "evdev", NULL)) {
2050             s->has_evdev = true;
2051         } else if (!strstart(keycodes, "xfree86", NULL)) {
2052             fprintf(stderr, "unknown keycodes `%s', please report to "
2053                     "qemu-devel@nongnu.org\n", keycodes);
2054         }
2055 
2056         if (desc) {
2057             XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True);
2058         }
2059         if (keycodes) {
2060             XFree(keycodes);
2061         }
2062     }
2063 #endif
2064 }
2065 
2066 static gboolean gtkinit;
2067 
2068 void gtk_display_init(DisplayState *ds, bool full_screen, bool grab_on_hover)
2069 {
2070     GtkDisplayState *s = g_malloc0(sizeof(*s));
2071     char *filename;
2072     GdkDisplay *window_display;
2073 
2074     if (!gtkinit) {
2075         fprintf(stderr, "gtk initialization failed\n");
2076         exit(1);
2077     }
2078 
2079     s->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
2080 #if GTK_CHECK_VERSION(3, 2, 0)
2081     s->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
2082 #else
2083     s->vbox = gtk_vbox_new(FALSE, 0);
2084 #endif
2085     s->notebook = gtk_notebook_new();
2086     s->menu_bar = gtk_menu_bar_new();
2087 
2088     s->free_scale = FALSE;
2089 
2090     /* LC_MESSAGES only. See early_gtk_display_init() for details */
2091     setlocale(LC_MESSAGES, "");
2092     bindtextdomain("qemu", CONFIG_QEMU_LOCALEDIR);
2093     textdomain("qemu");
2094 
2095     window_display = gtk_widget_get_display(s->window);
2096     s->null_cursor = gdk_cursor_new_for_display(window_display,
2097                                                 GDK_BLANK_CURSOR);
2098 
2099     s->mouse_mode_notifier.notify = gd_mouse_mode_change;
2100     qemu_add_mouse_mode_change_notifier(&s->mouse_mode_notifier);
2101     qemu_add_vm_change_state_handler(gd_change_runstate, s);
2102 
2103     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu_logo_no_text.svg");
2104     if (filename) {
2105         GError *error = NULL;
2106         GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(filename, &error);
2107         if (pixbuf) {
2108             gtk_window_set_icon(GTK_WINDOW(s->window), pixbuf);
2109         } else {
2110             g_error_free(error);
2111         }
2112         g_free(filename);
2113     }
2114 
2115     gd_create_menus(s);
2116 
2117     gd_connect_signals(s);
2118 
2119     gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), FALSE);
2120     gtk_notebook_set_show_border(GTK_NOTEBOOK(s->notebook), FALSE);
2121 
2122     gd_update_caption(s);
2123 
2124     gtk_box_pack_start(GTK_BOX(s->vbox), s->menu_bar, FALSE, TRUE, 0);
2125     gtk_box_pack_start(GTK_BOX(s->vbox), s->notebook, TRUE, TRUE, 0);
2126 
2127     gtk_container_add(GTK_CONTAINER(s->window), s->vbox);
2128 
2129     gtk_widget_show_all(s->window);
2130 
2131 #ifdef VTE_RESIZE_HACK
2132     {
2133         VirtualConsole *cur = gd_vc_find_current(s);
2134         if (cur) {
2135             int i;
2136 
2137             for (i = 0; i < s->nb_vcs; i++) {
2138                 VirtualConsole *vc = &s->vc[i];
2139                 if (vc && vc->type == GD_VC_VTE && vc != cur) {
2140                     gtk_widget_hide(vc->vte.terminal);
2141                 }
2142             }
2143             gd_update_windowsize(cur);
2144         }
2145     }
2146 #endif
2147 
2148     if (full_screen) {
2149         gtk_menu_item_activate(GTK_MENU_ITEM(s->full_screen_item));
2150     }
2151     if (grab_on_hover) {
2152         gtk_menu_item_activate(GTK_MENU_ITEM(s->grab_on_hover_item));
2153     }
2154 
2155     gd_set_keycode_type(s);
2156 }
2157 
2158 void early_gtk_display_init(int opengl)
2159 {
2160     /* The QEMU code relies on the assumption that it's always run in
2161      * the C locale. Therefore it is not prepared to deal with
2162      * operations that produce different results depending on the
2163      * locale, such as printf's formatting of decimal numbers, and
2164      * possibly others.
2165      *
2166      * Since GTK+ calls setlocale() by default -importing the locale
2167      * settings from the environment- we must prevent it from doing so
2168      * using gtk_disable_setlocale().
2169      *
2170      * QEMU's GTK+ UI, however, _does_ have translations for some of
2171      * the menu items. As a trade-off between a functionally correct
2172      * QEMU and a fully internationalized UI we support importing
2173      * LC_MESSAGES from the environment (see the setlocale() call
2174      * earlier in this file). This allows us to display translated
2175      * messages leaving everything else untouched.
2176      */
2177     gtk_disable_setlocale();
2178     gtkinit = gtk_init_check(NULL, NULL);
2179     if (!gtkinit) {
2180         /* don't exit yet, that'll break -help */
2181         return;
2182     }
2183 
2184     switch (opengl) {
2185     case -1: /* default */
2186     case 0:  /* off */
2187         break;
2188     case 1: /* on */
2189 #if defined(CONFIG_OPENGL)
2190 #if defined(CONFIG_GTK_GL)
2191         gtk_gl_area_init();
2192 #else
2193         gtk_egl_init();
2194 #endif
2195 #endif
2196         break;
2197     default:
2198         g_assert_not_reached();
2199         break;
2200     }
2201 
2202 #if defined(CONFIG_VTE)
2203     register_vc_handler(gd_vc_handler);
2204 #endif
2205 }
2206