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gtk.c
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/*
* GTK UI
*
* Copyright IBM, Corp. 2012
*
* Authors:
* Anthony Liguori <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*
* Portions from gtk-vnc (originally licensed under the LGPL v2+):
*
* GTK VNC Widget
*
* Copyright (C) 2006 Anthony Liguori <[email protected]>
* Copyright (C) 2009-2010 Daniel P. Berrange <[email protected]>
*/
#define GETTEXT_PACKAGE "qemu"
#define LOCALEDIR "po"
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qapi/qapi-commands-misc.h"
#include "qemu/cutils.h"
#include "ui/console.h"
#include "ui/gtk.h"
#include <glib/gi18n.h>
#include <locale.h>
#if defined(CONFIG_VTE)
#include <vte/vte.h>
#endif
#include <math.h>
#include "trace.h"
#include "ui/input.h"
#include "sysemu/sysemu.h"
#include "keymaps.h"
#include "chardev/char.h"
#include "qom/object.h"
#define MAX_VCS 10
#define VC_WINDOW_X_MIN 320
#define VC_WINDOW_Y_MIN 240
#define VC_TERM_X_MIN 80
#define VC_TERM_Y_MIN 25
#define VC_SCALE_MIN 0.25
#define VC_SCALE_STEP 0.25
#ifdef GDK_WINDOWING_X11
#include "x_keymap.h"
/* Gtk2 compat */
#ifndef GDK_IS_X11_DISPLAY
#define GDK_IS_X11_DISPLAY(dpy) (dpy != NULL)
#endif
#endif
#ifdef GDK_WINDOWING_WAYLAND
/* Gtk2 compat */
#ifndef GDK_IS_WAYLAND_DISPLAY
#define GDK_IS_WAYLAND_DISPLAY(dpy) (dpy != NULL)
#endif
#endif
#ifdef GDK_WINDOWING_WIN32
/* Gtk2 compat */
#ifndef GDK_IS_WIN32_DISPLAY
#define GDK_IS_WIN32_DISPLAY(dpy) (dpy != NULL)
#endif
#endif
#ifdef GDK_WINDOWING_BROADWAY
/* Gtk2 compat */
#ifndef GDK_IS_BROADWAY_DISPLAY
#define GDK_IS_BROADWAY_DISPLAY(dpy) (dpy != NULL)
#endif
#endif
#ifdef GDK_WINDOWING_QUARTZ
/* Gtk2 compat */
#ifndef GDK_IS_QUARTZ_DISPLAY
#define GDK_IS_QUARTZ_DISPLAY(dpy) (dpy != NULL)
#endif
#endif
#if !defined(CONFIG_VTE)
# define VTE_CHECK_VERSION(a, b, c) 0
#endif
/* Some older mingw versions lack this constant or have
* it conditionally defined */
#ifdef _WIN32
# ifndef MAPVK_VK_TO_VSC
# define MAPVK_VK_TO_VSC 0
# endif
#endif
#define HOTKEY_MODIFIERS (GDK_CONTROL_MASK | GDK_MOD1_MASK)
static const guint16 *keycode_map;
static size_t keycode_maplen;
struct GtkDisplayState {
GtkWidget *window;
GtkWidget *menu_bar;
GtkAccelGroup *accel_group;
GtkWidget *machine_menu_item;
GtkWidget *machine_menu;
GtkWidget *pause_item;
GtkWidget *reset_item;
GtkWidget *powerdown_item;
GtkWidget *quit_item;
GtkWidget *view_menu_item;
GtkWidget *view_menu;
GtkWidget *full_screen_item;
GtkWidget *copy_item;
GtkWidget *zoom_in_item;
GtkWidget *zoom_out_item;
GtkWidget *zoom_fixed_item;
GtkWidget *zoom_fit_item;
GtkWidget *grab_item;
GtkWidget *grab_on_hover_item;
int nb_vcs;
VirtualConsole vc[MAX_VCS];
GtkWidget *show_tabs_item;
GtkWidget *untabify_item;
GtkWidget *show_menubar_item;
GtkWidget *vbox;
GtkWidget *notebook;
int button_mask;
gboolean last_set;
int last_x;
int last_y;
int grab_x_root;
int grab_y_root;
VirtualConsole *kbd_owner;
VirtualConsole *ptr_owner;
gboolean full_screen;
GdkCursor *null_cursor;
Notifier mouse_mode_notifier;
gboolean free_scale;
bool external_pause_update;
bool ignore_keys;
DisplayOptions *opts;
};
typedef struct VCChardev {
Chardev parent;
VirtualConsole *console;
bool echo;
} VCChardev;
#define TYPE_CHARDEV_VC "chardev-vc"
#define VC_CHARDEV(obj) OBJECT_CHECK(VCChardev, (obj), TYPE_CHARDEV_VC)
bool gtk_use_gl_area;
static void gd_grab_pointer(VirtualConsole *vc, const char *reason);
static void gd_ungrab_pointer(GtkDisplayState *s);
static void gd_grab_keyboard(VirtualConsole *vc, const char *reason);
static void gd_ungrab_keyboard(GtkDisplayState *s);
/** Utility Functions **/
static VirtualConsole *gd_vc_find_by_menu(GtkDisplayState *s)
{
VirtualConsole *vc;
gint i;
for (i = 0; i < s->nb_vcs; i++) {
vc = &s->vc[i];
if (gtk_check_menu_item_get_active
(GTK_CHECK_MENU_ITEM(vc->menu_item))) {
return vc;
}
}
return NULL;
}
static VirtualConsole *gd_vc_find_by_page(GtkDisplayState *s, gint page)
{
VirtualConsole *vc;
gint i, p;
for (i = 0; i < s->nb_vcs; i++) {
vc = &s->vc[i];
p = gtk_notebook_page_num(GTK_NOTEBOOK(s->notebook), vc->tab_item);
if (p == page) {
return vc;
}
}
return NULL;
}
static VirtualConsole *gd_vc_find_current(GtkDisplayState *s)
{
gint page;
page = gtk_notebook_get_current_page(GTK_NOTEBOOK(s->notebook));
return gd_vc_find_by_page(s, page);
}
static bool gd_is_grab_active(GtkDisplayState *s)
{
return gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->grab_item));
}
static bool gd_grab_on_hover(GtkDisplayState *s)
{
return gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->grab_on_hover_item));
}
static void gd_update_cursor(VirtualConsole *vc)
{
GtkDisplayState *s = vc->s;
GdkWindow *window;
if (vc->type != GD_VC_GFX ||
!qemu_console_is_graphic(vc->gfx.dcl.con)) {
return;
}
if (!gtk_widget_get_realized(vc->gfx.drawing_area)) {
return;
}
window = gtk_widget_get_window(GTK_WIDGET(vc->gfx.drawing_area));
if (s->full_screen || qemu_input_is_absolute() || s->ptr_owner == vc) {
gdk_window_set_cursor(window, s->null_cursor);
} else {
gdk_window_set_cursor(window, NULL);
}
}
static void gd_update_caption(GtkDisplayState *s)
{
const char *status = "";
gchar *prefix;
gchar *title;
const char *grab = "";
bool is_paused = !runstate_is_running();
int i;
if (qemu_name) {
prefix = g_strdup_printf("QEMU (%s)", qemu_name);
} else {
prefix = g_strdup_printf("QEMU");
}
if (s->ptr_owner != NULL &&
s->ptr_owner->window == NULL) {
grab = _(" - Press Ctrl+Alt+G to release grab");
}
if (is_paused) {
status = _(" [Paused]");
}
s->external_pause_update = true;
gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->pause_item),
is_paused);
s->external_pause_update = false;
title = g_strdup_printf("%s%s%s", prefix, status, grab);
gtk_window_set_title(GTK_WINDOW(s->window), title);
g_free(title);
for (i = 0; i < s->nb_vcs; i++) {
VirtualConsole *vc = &s->vc[i];
if (!vc->window) {
continue;
}
title = g_strdup_printf("%s: %s%s%s", prefix, vc->label,
vc == s->kbd_owner ? " +kbd" : "",
vc == s->ptr_owner ? " +ptr" : "");
gtk_window_set_title(GTK_WINDOW(vc->window), title);
g_free(title);
}
g_free(prefix);
}
static void gd_update_geometry_hints(VirtualConsole *vc)
{
GtkDisplayState *s = vc->s;
GdkWindowHints mask = 0;
GdkGeometry geo = {};
GtkWidget *geo_widget = NULL;
GtkWindow *geo_window;
if (vc->type == GD_VC_GFX) {
if (!vc->gfx.ds) {
return;
}
if (s->free_scale) {
geo.min_width = surface_width(vc->gfx.ds) * VC_SCALE_MIN;
geo.min_height = surface_height(vc->gfx.ds) * VC_SCALE_MIN;
mask |= GDK_HINT_MIN_SIZE;
} else {
geo.min_width = surface_width(vc->gfx.ds) * vc->gfx.scale_x;
geo.min_height = surface_height(vc->gfx.ds) * vc->gfx.scale_y;
mask |= GDK_HINT_MIN_SIZE;
}
geo_widget = vc->gfx.drawing_area;
gtk_widget_set_size_request(geo_widget, geo.min_width, geo.min_height);
#if defined(CONFIG_VTE)
} else if (vc->type == GD_VC_VTE) {
VteTerminal *term = VTE_TERMINAL(vc->vte.terminal);
GtkBorder padding = { 0 };
#if VTE_CHECK_VERSION(0, 37, 0)
gtk_style_context_get_padding(
gtk_widget_get_style_context(vc->vte.terminal),
gtk_widget_get_state_flags(vc->vte.terminal),
&padding);
#else
{
GtkBorder *ib = NULL;
gtk_widget_style_get(vc->vte.terminal, "inner-border", &ib, NULL);
if (ib) {
padding = *ib;
gtk_border_free(ib);
}
}
#endif
geo.width_inc = vte_terminal_get_char_width(term);
geo.height_inc = vte_terminal_get_char_height(term);
mask |= GDK_HINT_RESIZE_INC;
geo.base_width = geo.width_inc;
geo.base_height = geo.height_inc;
mask |= GDK_HINT_BASE_SIZE;
geo.min_width = geo.width_inc * VC_TERM_X_MIN;
geo.min_height = geo.height_inc * VC_TERM_Y_MIN;
mask |= GDK_HINT_MIN_SIZE;
geo.base_width += padding.left + padding.right;
geo.base_height += padding.top + padding.bottom;
geo.min_width += padding.left + padding.right;
geo.min_height += padding.top + padding.bottom;
geo_widget = vc->vte.terminal;
#endif
}
geo_window = GTK_WINDOW(vc->window ? vc->window : s->window);
gtk_window_set_geometry_hints(geo_window, geo_widget, &geo, mask);
}
void gd_update_windowsize(VirtualConsole *vc)
{
GtkDisplayState *s = vc->s;
gd_update_geometry_hints(vc);
if (vc->type == GD_VC_GFX && !s->full_screen && !s->free_scale) {
gtk_window_resize(GTK_WINDOW(vc->window ? vc->window : s->window),
VC_WINDOW_X_MIN, VC_WINDOW_Y_MIN);
}
}
static void gd_update_full_redraw(VirtualConsole *vc)
{
GtkWidget *area = vc->gfx.drawing_area;
int ww, wh;
ww = gdk_window_get_width(gtk_widget_get_window(area));
wh = gdk_window_get_height(gtk_widget_get_window(area));
#if defined(CONFIG_GTK_GL)
if (vc->gfx.gls && gtk_use_gl_area) {
gtk_gl_area_queue_render(GTK_GL_AREA(vc->gfx.drawing_area));
return;
}
#endif
gtk_widget_queue_draw_area(area, 0, 0, ww, wh);
}
static void gtk_release_modifiers(GtkDisplayState *s)
{
VirtualConsole *vc = gd_vc_find_current(s);
if (vc->type != GD_VC_GFX ||
!qemu_console_is_graphic(vc->gfx.dcl.con)) {
return;
}
qkbd_state_lift_all_keys(vc->gfx.kbd);
}
static void gd_widget_reparent(GtkWidget *from, GtkWidget *to,
GtkWidget *widget)
{
g_object_ref(G_OBJECT(widget));
gtk_container_remove(GTK_CONTAINER(from), widget);
gtk_container_add(GTK_CONTAINER(to), widget);
g_object_unref(G_OBJECT(widget));
}
/** DisplayState Callbacks **/
static void gd_update(DisplayChangeListener *dcl,
int x, int y, int w, int h)
{
VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
GdkWindow *win;
int x1, x2, y1, y2;
int mx, my;
int fbw, fbh;
int ww, wh;
trace_gd_update(vc->label, x, y, w, h);
if (!gtk_widget_get_realized(vc->gfx.drawing_area)) {
return;
}
if (vc->gfx.convert) {
pixman_image_composite(PIXMAN_OP_SRC, vc->gfx.ds->image,
NULL, vc->gfx.convert,
x, y, 0, 0, x, y, w, h);
}
x1 = floor(x * vc->gfx.scale_x);
y1 = floor(y * vc->gfx.scale_y);
x2 = ceil(x * vc->gfx.scale_x + w * vc->gfx.scale_x);
y2 = ceil(y * vc->gfx.scale_y + h * vc->gfx.scale_y);
fbw = surface_width(vc->gfx.ds) * vc->gfx.scale_x;
fbh = surface_height(vc->gfx.ds) * vc->gfx.scale_y;
win = gtk_widget_get_window(vc->gfx.drawing_area);
if (!win) {
return;
}
ww = gdk_window_get_width(win);
wh = gdk_window_get_height(win);
mx = my = 0;
if (ww > fbw) {
mx = (ww - fbw) / 2;
}
if (wh > fbh) {
my = (wh - fbh) / 2;
}
gtk_widget_queue_draw_area(vc->gfx.drawing_area,
mx + x1, my + y1, (x2 - x1), (y2 - y1));
}
static void gd_refresh(DisplayChangeListener *dcl)
{
graphic_hw_update(dcl->con);
}
static GdkDevice *gd_get_pointer(GdkDisplay *dpy)
{
#if GTK_CHECK_VERSION(3, 20, 0)
return gdk_seat_get_pointer(gdk_display_get_default_seat(dpy));
#else
return gdk_device_manager_get_client_pointer(
gdk_display_get_device_manager(dpy));
#endif
}
static void gd_mouse_set(DisplayChangeListener *dcl,
int x, int y, int visible)
{
VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
GdkDisplay *dpy;
gint x_root, y_root;
if (qemu_input_is_absolute()) {
return;
}
dpy = gtk_widget_get_display(vc->gfx.drawing_area);
gdk_window_get_root_coords(gtk_widget_get_window(vc->gfx.drawing_area),
x, y, &x_root, &y_root);
gdk_device_warp(gd_get_pointer(dpy),
gtk_widget_get_screen(vc->gfx.drawing_area),
x_root, y_root);
vc->s->last_x = x;
vc->s->last_y = y;
}
static void gd_cursor_define(DisplayChangeListener *dcl,
QEMUCursor *c)
{
VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
GdkPixbuf *pixbuf;
GdkCursor *cursor;
if (!gtk_widget_get_realized(vc->gfx.drawing_area)) {
return;
}
pixbuf = gdk_pixbuf_new_from_data((guchar *)(c->data),
GDK_COLORSPACE_RGB, true, 8,
c->width, c->height, c->width * 4,
NULL, NULL);
cursor = gdk_cursor_new_from_pixbuf
(gtk_widget_get_display(vc->gfx.drawing_area),
pixbuf, c->hot_x, c->hot_y);
gdk_window_set_cursor(gtk_widget_get_window(vc->gfx.drawing_area), cursor);
g_object_unref(pixbuf);
g_object_unref(cursor);
}
static void gd_switch(DisplayChangeListener *dcl,
DisplaySurface *surface)
{
VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
bool resized = true;
trace_gd_switch(vc->label,
surface ? surface_width(surface) : 0,
surface ? surface_height(surface) : 0);
if (vc->gfx.surface) {
cairo_surface_destroy(vc->gfx.surface);
vc->gfx.surface = NULL;
}
if (vc->gfx.convert) {
pixman_image_unref(vc->gfx.convert);
vc->gfx.convert = NULL;
}
if (vc->gfx.ds && surface &&
surface_width(vc->gfx.ds) == surface_width(surface) &&
surface_height(vc->gfx.ds) == surface_height(surface)) {
resized = false;
}
vc->gfx.ds = surface;
if (!surface) {
return;
}
if (surface->format == PIXMAN_x8r8g8b8) {
/*
* PIXMAN_x8r8g8b8 == CAIRO_FORMAT_RGB24
*
* No need to convert, use surface directly. Should be the
* common case as this is qemu_default_pixelformat(32) too.
*/
vc->gfx.surface = cairo_image_surface_create_for_data
(surface_data(surface),
CAIRO_FORMAT_RGB24,
surface_width(surface),
surface_height(surface),
surface_stride(surface));
} else {
/* Must convert surface, use pixman to do it. */
vc->gfx.convert = pixman_image_create_bits(PIXMAN_x8r8g8b8,
surface_width(surface),
surface_height(surface),
NULL, 0);
vc->gfx.surface = cairo_image_surface_create_for_data
((void *)pixman_image_get_data(vc->gfx.convert),
CAIRO_FORMAT_RGB24,
pixman_image_get_width(vc->gfx.convert),
pixman_image_get_height(vc->gfx.convert),
pixman_image_get_stride(vc->gfx.convert));
pixman_image_composite(PIXMAN_OP_SRC, vc->gfx.ds->image,
NULL, vc->gfx.convert,
0, 0, 0, 0, 0, 0,
pixman_image_get_width(vc->gfx.convert),
pixman_image_get_height(vc->gfx.convert));
}
if (resized) {
gd_update_windowsize(vc);
} else {
gd_update_full_redraw(vc);
}
}
static const DisplayChangeListenerOps dcl_ops = {
.dpy_name = "gtk",
.dpy_gfx_update = gd_update,
.dpy_gfx_switch = gd_switch,
.dpy_gfx_check_format = qemu_pixman_check_format,
.dpy_refresh = gd_refresh,
.dpy_mouse_set = gd_mouse_set,
.dpy_cursor_define = gd_cursor_define,
};
#if defined(CONFIG_OPENGL)
/** DisplayState Callbacks (opengl version) **/
#if defined(CONFIG_GTK_GL)
static const DisplayChangeListenerOps dcl_gl_area_ops = {
.dpy_name = "gtk-egl",
.dpy_gfx_update = gd_gl_area_update,
.dpy_gfx_switch = gd_gl_area_switch,
.dpy_gfx_check_format = console_gl_check_format,
.dpy_refresh = gd_gl_area_refresh,
.dpy_mouse_set = gd_mouse_set,
.dpy_cursor_define = gd_cursor_define,
.dpy_gl_ctx_create = gd_gl_area_create_context,
.dpy_gl_ctx_destroy = gd_gl_area_destroy_context,
.dpy_gl_ctx_make_current = gd_gl_area_make_current,
.dpy_gl_ctx_get_current = gd_gl_area_get_current_context,
.dpy_gl_scanout_texture = gd_gl_area_scanout_texture,
.dpy_gl_update = gd_gl_area_scanout_flush,
};
#endif /* CONFIG_GTK_GL */
static const DisplayChangeListenerOps dcl_egl_ops = {
.dpy_name = "gtk-egl",
.dpy_gfx_update = gd_egl_update,
.dpy_gfx_switch = gd_egl_switch,
.dpy_gfx_check_format = console_gl_check_format,
.dpy_refresh = gd_egl_refresh,
.dpy_mouse_set = gd_mouse_set,
.dpy_cursor_define = gd_cursor_define,
.dpy_gl_ctx_create = gd_egl_create_context,
.dpy_gl_ctx_destroy = qemu_egl_destroy_context,
.dpy_gl_ctx_make_current = gd_egl_make_current,
.dpy_gl_ctx_get_current = qemu_egl_get_current_context,
.dpy_gl_scanout_disable = gd_egl_scanout_disable,
.dpy_gl_scanout_texture = gd_egl_scanout_texture,
.dpy_gl_scanout_dmabuf = gd_egl_scanout_dmabuf,
.dpy_gl_cursor_dmabuf = gd_egl_cursor_dmabuf,
.dpy_gl_cursor_position = gd_egl_cursor_position,
.dpy_gl_release_dmabuf = gd_egl_release_dmabuf,
.dpy_gl_update = gd_egl_scanout_flush,
};
#endif /* CONFIG_OPENGL */
/** QEMU Events **/
static void gd_change_runstate(void *opaque, int running, RunState state)
{
GtkDisplayState *s = opaque;
gd_update_caption(s);
}
static void gd_mouse_mode_change(Notifier *notify, void *data)
{
GtkDisplayState *s;
int i;
s = container_of(notify, GtkDisplayState, mouse_mode_notifier);
/* release the grab at switching to absolute mode */
if (qemu_input_is_absolute() && gd_is_grab_active(s)) {
gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
FALSE);
}
for (i = 0; i < s->nb_vcs; i++) {
VirtualConsole *vc = &s->vc[i];
gd_update_cursor(vc);
}
}
/** GTK Events **/
static gboolean gd_window_close(GtkWidget *widget, GdkEvent *event,
void *opaque)
{
GtkDisplayState *s = opaque;
bool allow_close = true;
if (s->opts->has_window_close && !s->opts->window_close) {
allow_close = false;
}
if (allow_close) {
qmp_quit(NULL);
}
return TRUE;
}
static void gd_set_ui_info(VirtualConsole *vc, gint width, gint height)
{
QemuUIInfo info;
memset(&info, 0, sizeof(info));
info.width = width;
info.height = height;
dpy_set_ui_info(vc->gfx.dcl.con, &info);
}
#if defined(CONFIG_GTK_GL)
static gboolean gd_render_event(GtkGLArea *area, GdkGLContext *context,
void *opaque)
{
VirtualConsole *vc = opaque;
if (vc->gfx.gls) {
gd_gl_area_draw(vc);
}
return TRUE;
}
static void gd_resize_event(GtkGLArea *area,
gint width, gint height, gpointer *opaque)
{
VirtualConsole *vc = (void *)opaque;
gd_set_ui_info(vc, width, height);
}
#endif
static gboolean gd_draw_event(GtkWidget *widget, cairo_t *cr, void *opaque)
{
VirtualConsole *vc = opaque;
GtkDisplayState *s = vc->s;
int mx, my;
int ww, wh;
int fbw, fbh;
#if defined(CONFIG_OPENGL)
if (vc->gfx.gls) {
if (gtk_use_gl_area) {
/* invoke render callback please */
return FALSE;
} else {
gd_egl_draw(vc);
return TRUE;
}
}
#endif
if (!gtk_widget_get_realized(widget)) {
return FALSE;
}
if (!vc->gfx.ds) {
return FALSE;
}
fbw = surface_width(vc->gfx.ds);
fbh = surface_height(vc->gfx.ds);
ww = gdk_window_get_width(gtk_widget_get_window(widget));
wh = gdk_window_get_height(gtk_widget_get_window(widget));
if (s->full_screen) {
vc->gfx.scale_x = (double)ww / fbw;
vc->gfx.scale_y = (double)wh / fbh;
} else if (s->free_scale) {
double sx, sy;
sx = (double)ww / fbw;
sy = (double)wh / fbh;
vc->gfx.scale_x = vc->gfx.scale_y = MIN(sx, sy);
}
fbw *= vc->gfx.scale_x;
fbh *= vc->gfx.scale_y;
mx = my = 0;
if (ww > fbw) {
mx = (ww - fbw) / 2;
}
if (wh > fbh) {
my = (wh - fbh) / 2;
}
cairo_rectangle(cr, 0, 0, ww, wh);
/* Optionally cut out the inner area where the pixmap
will be drawn. This avoids 'flashing' since we're
not double-buffering. Note we're using the undocumented
behaviour of drawing the rectangle from right to left
to cut out the whole */
cairo_rectangle(cr, mx + fbw, my,
-1 * fbw, fbh);
cairo_fill(cr);
cairo_scale(cr, vc->gfx.scale_x, vc->gfx.scale_y);
cairo_set_source_surface(cr, vc->gfx.surface,
mx / vc->gfx.scale_x, my / vc->gfx.scale_y);
cairo_paint(cr);
return TRUE;
}
static gboolean gd_motion_event(GtkWidget *widget, GdkEventMotion *motion,
void *opaque)
{
VirtualConsole *vc = opaque;
GtkDisplayState *s = vc->s;
int x, y;
int mx, my;
int fbh, fbw;
int ww, wh;
if (!vc->gfx.ds) {
return TRUE;
}
fbw = surface_width(vc->gfx.ds) * vc->gfx.scale_x;
fbh = surface_height(vc->gfx.ds) * vc->gfx.scale_y;
ww = gdk_window_get_width(gtk_widget_get_window(vc->gfx.drawing_area));
wh = gdk_window_get_height(gtk_widget_get_window(vc->gfx.drawing_area));
mx = my = 0;
if (ww > fbw) {
mx = (ww - fbw) / 2;
}
if (wh > fbh) {
my = (wh - fbh) / 2;
}
x = (motion->x - mx) / vc->gfx.scale_x;
y = (motion->y - my) / vc->gfx.scale_y;
if (qemu_input_is_absolute()) {
if (x < 0 || y < 0 ||
x >= surface_width(vc->gfx.ds) ||
y >= surface_height(vc->gfx.ds)) {
return TRUE;
}
qemu_input_queue_abs(vc->gfx.dcl.con, INPUT_AXIS_X, x,
0, surface_width(vc->gfx.ds));
qemu_input_queue_abs(vc->gfx.dcl.con, INPUT_AXIS_Y, y,
0, surface_height(vc->gfx.ds));
qemu_input_event_sync();
} else if (s->last_set && s->ptr_owner == vc) {
qemu_input_queue_rel(vc->gfx.dcl.con, INPUT_AXIS_X, x - s->last_x);
qemu_input_queue_rel(vc->gfx.dcl.con, INPUT_AXIS_Y, y - s->last_y);
qemu_input_event_sync();
}
s->last_x = x;
s->last_y = y;
s->last_set = TRUE;
if (!qemu_input_is_absolute() && s->ptr_owner == vc) {
GdkScreen *screen = gtk_widget_get_screen(vc->gfx.drawing_area);
int screen_width, screen_height;
int x = (int)motion->x_root;
int y = (int)motion->y_root;
#if GTK_CHECK_VERSION(3, 22, 0)
{
GdkDisplay *dpy = gtk_widget_get_display(widget);
GdkWindow *win = gtk_widget_get_window(widget);
GdkMonitor *monitor = gdk_display_get_monitor_at_window(dpy, win);
GdkRectangle geometry;
gdk_monitor_get_geometry(monitor, &geometry);
screen_width = geometry.width;
screen_height = geometry.height;
}
#else
{
screen_width = gdk_screen_get_width(screen);
screen_height = gdk_screen_get_height(screen);
}
#endif
/* In relative mode check to see if client pointer hit
* one of the screen edges, and if so move it back by
* 200 pixels. This is important because the pointer
* in the server doesn't correspond 1-for-1, and so
* may still be only half way across the screen. Without
* this warp, the server pointer would thus appear to hit
* an invisible wall */
if (x == 0) {
x += 200;
}
if (y == 0) {
y += 200;
}
if (x == (screen_width - 1)) {
x -= 200;
}
if (y == (screen_height - 1)) {
y -= 200;
}
if (x != (int)motion->x_root || y != (int)motion->y_root) {
GdkDevice *dev = gdk_event_get_device((GdkEvent *)motion);
gdk_device_warp(dev, screen, x, y);
s->last_set = FALSE;
return FALSE;
}
}
return TRUE;
}
static gboolean gd_button_event(GtkWidget *widget, GdkEventButton *button,
void *opaque)
{
VirtualConsole *vc = opaque;
GtkDisplayState *s = vc->s;
InputButton btn;
/* implicitly grab the input at the first click in the relative mode */
if (button->button == 1 && button->type == GDK_BUTTON_PRESS &&
!qemu_input_is_absolute() && s->ptr_owner != vc) {
if (!vc->window) {
gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
TRUE);
} else {
gd_grab_pointer(vc, "relative-mode-click");
}
return TRUE;
}
if (button->button == 1) {
btn = INPUT_BUTTON_LEFT;
} else if (button->button == 2) {
btn = INPUT_BUTTON_MIDDLE;
} else if (button->button == 3) {
btn = INPUT_BUTTON_RIGHT;
} else if (button->button == 8) {
btn = INPUT_BUTTON_SIDE;
} else if (button->button == 9) {
btn = INPUT_BUTTON_EXTRA;
} else {
return TRUE;
}
qemu_input_queue_btn(vc->gfx.dcl.con, btn,
button->type == GDK_BUTTON_PRESS);
qemu_input_event_sync();
return TRUE;
}
static gboolean gd_scroll_event(GtkWidget *widget, GdkEventScroll *scroll,
void *opaque)
{
VirtualConsole *vc = opaque;
InputButton btn;
if (scroll->direction == GDK_SCROLL_UP) {
btn = INPUT_BUTTON_WHEEL_UP;
} else if (scroll->direction == GDK_SCROLL_DOWN) {
btn = INPUT_BUTTON_WHEEL_DOWN;
} else if (scroll->direction == GDK_SCROLL_SMOOTH) {
gdouble delta_x, delta_y;
if (!gdk_event_get_scroll_deltas((GdkEvent *)scroll,
&delta_x, &delta_y)) {
return TRUE;
}
if (delta_y == 0) {
return TRUE;
} else if (delta_y > 0) {
btn = INPUT_BUTTON_WHEEL_DOWN;
} else {
btn = INPUT_BUTTON_WHEEL_UP;
}
} else {
return TRUE;
}
qemu_input_queue_btn(vc->gfx.dcl.con, btn, true);
qemu_input_event_sync();
qemu_input_queue_btn(vc->gfx.dcl.con, btn, false);
qemu_input_event_sync();
return TRUE;
}