grub/grub-core/gfxmenu/view.c

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/* view.c - Graphical menu interface MVC view. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2008 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/types.h>
#include <grub/file.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/err.h>
#include <grub/dl.h>
#include <grub/normal.h>
#include <grub/video.h>
#include <grub/gfxterm.h>
#include <grub/bitmap.h>
#include <grub/bitmap_scale.h>
#include <grub/term.h>
#include <grub/gfxwidgets.h>
#include <grub/time.h>
#include <grub/menu.h>
#include <grub/menu_viewer.h>
#include <grub/gfxmenu_view.h>
#include <grub/gui_string_util.h>
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#include <grub/icon_manager.h>
* grub-core/commands/acpihalt.c: Gettextized. * grub-core/commands/cacheinfo.c: Likewise. * grub-core/commands/cmp.c: Likewise. * grub-core/commands/efi/loadbios.c: Likewise. * grub-core/commands/gptsync.c: Likewise. * grub-core/commands/ieee1275/suspend.c: Likewise. * grub-core/commands/legacycfg.c: Likewise. * grub-core/commands/memrw.c: Likewise. * grub-core/commands/minicmd.c: Likewise. * grub-core/commands/parttool.c: Likewise. * grub-core/commands/time.c: Likewise. * grub-core/commands/videoinfo.c: Likewise. * grub-core/disk/geli.c: Likewise. * grub-core/disk/i386/pc/biosdisk.c: Likewise. * grub-core/disk/luks.c: Likewise. * grub-core/disk/lvm.c: Likewise. * grub-core/font/font_cmd.c: Likewise. * grub-core/fs/zfs/zfscrypt.c: Likewise. * grub-core/fs/zfs/zfsinfo.c: Likewise. * grub-core/gfxmenu/view.c: Likewise. * grub-core/kern/emu/hostdisk.c: Likewise. * grub-core/kern/emu/main.c: Likewise. * grub-core/kern/emu/misc.c: Likewise. * grub-core/kern/emu/mm.c: Likewise. * grub-core/kern/mips/arc/init.c: Likewise. * grub-core/kern/mips/loongson/init.c: Likewise. * grub-core/kern/partition.c: Likewise. * grub-core/lib/i386/halt.c: Likewise. * grub-core/lib/mips/arc/reboot.c: Likewise. * grub-core/lib/mips/loongson/reboot.c: Likewise. * grub-core/loader/i386/pc/chainloader.c: Likewise. * grub-core/loader/i386/xnu.c: Likewise. * grub-core/loader/multiboot.c: Likewise. * grub-core/net/bootp.c: Likewise. * grub-core/net/net.c: Likewise. * grub-core/normal/term.c: Likewise. * grub-core/partmap/bsdlabel.c: Likewise. * grub-core/parttool/msdospart.c: Likewise. * grub-core/term/gfxterm.c: Likewise. * grub-core/term/terminfo.c: Likewise. * grub-core/video/i386/pc/vbe.c: Likewise. * util/grub-menulst2cfg.c: Likewise. * util/grub-mkdevicemap.c: Likewise. * util/grub-mklayout.c: Likewise. * util/grub-mkrelpath.c: Likewise. * util/grub-script-check.c: Likewise. * util/ieee1275/grub-ofpathname.c: Likewise. * util/resolve.c: Likewise.
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#include <grub/i18n.h>
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static void
init_terminal (grub_gfxmenu_view_t view);
static grub_video_rect_t term_rect;
static grub_gfxmenu_view_t term_view;
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/* Create a new view object, loading the theme specified by THEME_PATH and
associating MODEL with the view. */
grub_gfxmenu_view_t
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grub_gfxmenu_view_new (const char *theme_path,
int width, int height)
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{
grub_gfxmenu_view_t view;
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grub_font_t default_font;
grub_video_rgba_color_t default_fg_color;
grub_video_rgba_color_t default_bg_color;
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view = grub_malloc (sizeof (*view));
if (! view)
return 0;
while (grub_gfxmenu_timeout_notifications)
{
struct grub_gfxmenu_timeout_notify *p;
p = grub_gfxmenu_timeout_notifications;
grub_gfxmenu_timeout_notifications = grub_gfxmenu_timeout_notifications->next;
grub_free (p);
}
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view->screen.x = 0;
view->screen.y = 0;
view->screen.width = width;
view->screen.height = height;
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default_font = grub_font_get ("Unknown Regular 16");
default_fg_color = grub_video_rgba_color_rgb (0, 0, 0);
default_bg_color = grub_video_rgba_color_rgb (255, 255, 255);
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view->canvas = 0;
view->title_font = default_font;
view->message_font = default_font;
view->terminal_font_name = grub_strdup ("Fixed 10");
view->title_color = default_fg_color;
view->message_color = default_bg_color;
view->message_bg_color = default_fg_color;
view->desktop_image = 0;
view->desktop_color = default_bg_color;
view->terminal_box = grub_gfxmenu_create_box (0, 0);
* grub-core/commands/acpihalt.c: Gettextized. * grub-core/commands/cacheinfo.c: Likewise. * grub-core/commands/cmp.c: Likewise. * grub-core/commands/efi/loadbios.c: Likewise. * grub-core/commands/gptsync.c: Likewise. * grub-core/commands/ieee1275/suspend.c: Likewise. * grub-core/commands/legacycfg.c: Likewise. * grub-core/commands/memrw.c: Likewise. * grub-core/commands/minicmd.c: Likewise. * grub-core/commands/parttool.c: Likewise. * grub-core/commands/time.c: Likewise. * grub-core/commands/videoinfo.c: Likewise. * grub-core/disk/geli.c: Likewise. * grub-core/disk/i386/pc/biosdisk.c: Likewise. * grub-core/disk/luks.c: Likewise. * grub-core/disk/lvm.c: Likewise. * grub-core/font/font_cmd.c: Likewise. * grub-core/fs/zfs/zfscrypt.c: Likewise. * grub-core/fs/zfs/zfsinfo.c: Likewise. * grub-core/gfxmenu/view.c: Likewise. * grub-core/kern/emu/hostdisk.c: Likewise. * grub-core/kern/emu/main.c: Likewise. * grub-core/kern/emu/misc.c: Likewise. * grub-core/kern/emu/mm.c: Likewise. * grub-core/kern/mips/arc/init.c: Likewise. * grub-core/kern/mips/loongson/init.c: Likewise. * grub-core/kern/partition.c: Likewise. * grub-core/lib/i386/halt.c: Likewise. * grub-core/lib/mips/arc/reboot.c: Likewise. * grub-core/lib/mips/loongson/reboot.c: Likewise. * grub-core/loader/i386/pc/chainloader.c: Likewise. * grub-core/loader/i386/xnu.c: Likewise. * grub-core/loader/multiboot.c: Likewise. * grub-core/net/bootp.c: Likewise. * grub-core/net/net.c: Likewise. * grub-core/normal/term.c: Likewise. * grub-core/partmap/bsdlabel.c: Likewise. * grub-core/parttool/msdospart.c: Likewise. * grub-core/term/gfxterm.c: Likewise. * grub-core/term/terminfo.c: Likewise. * grub-core/video/i386/pc/vbe.c: Likewise. * util/grub-menulst2cfg.c: Likewise. * util/grub-mkdevicemap.c: Likewise. * util/grub-mklayout.c: Likewise. * util/grub-mkrelpath.c: Likewise. * util/grub-script-check.c: Likewise. * util/ieee1275/grub-ofpathname.c: Likewise. * util/resolve.c: Likewise.
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view->title_text = grub_strdup (_("GRUB Boot Menu"));
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view->progress_message_text = 0;
view->theme_path = 0;
/* Set the timeout bar's frame. */
view->progress_message_frame.width = view->screen.width * 4 / 5;
view->progress_message_frame.height = 50;
view->progress_message_frame.x = view->screen.x
+ (view->screen.width - view->progress_message_frame.width) / 2;
view->progress_message_frame.y = view->screen.y
+ view->screen.height - 90 - 20 - view->progress_message_frame.height;
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if (grub_gfxmenu_view_load_theme (view, theme_path) != 0)
{
grub_gfxmenu_view_destroy (view);
return 0;
}
return view;
}
/* Destroy the view object. All used memory is freed. */
void
grub_gfxmenu_view_destroy (grub_gfxmenu_view_t view)
{
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if (!view)
return;
while (grub_gfxmenu_timeout_notifications)
{
struct grub_gfxmenu_timeout_notify *p;
p = grub_gfxmenu_timeout_notifications;
grub_gfxmenu_timeout_notifications = grub_gfxmenu_timeout_notifications->next;
grub_free (p);
}
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grub_video_bitmap_destroy (view->desktop_image);
if (view->terminal_box)
view->terminal_box->destroy (view->terminal_box);
grub_free (view->terminal_font_name);
grub_free (view->title_text);
grub_free (view->progress_message_text);
grub_free (view->theme_path);
if (view->canvas)
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view->canvas->component.ops->destroy (view->canvas);
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grub_free (view);
}
static void
redraw_background (grub_gfxmenu_view_t view,
const grub_video_rect_t *bounds)
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{
if (view->desktop_image)
{
struct grub_video_bitmap *img = view->desktop_image;
grub_video_blit_bitmap (img, GRUB_VIDEO_BLIT_REPLACE,
bounds->x, bounds->y,
bounds->x - view->screen.x,
bounds->y - view->screen.y,
bounds->width, bounds->height);
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}
else
{
grub_video_fill_rect (grub_video_map_rgba_color (view->desktop_color),
bounds->x, bounds->y,
bounds->width, bounds->height);
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}
}
static void
draw_title (grub_gfxmenu_view_t view)
{
if (! view->title_text)
return;
/* Center the title. */
int title_width = grub_font_get_string_width (view->title_font,
view->title_text);
int x = (view->screen.width - title_width) / 2;
int y = 40 + grub_font_get_ascent (view->title_font);
grub_font_draw_string (view->title_text,
view->title_font,
grub_video_map_rgba_color (view->title_color),
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x, y);
}
struct progress_value_data
{
int visible;
int start;
int end;
int value;
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};
struct grub_gfxmenu_timeout_notify *grub_gfxmenu_timeout_notifications;
static void
update_timeouts (int visible, int start, int value, int end)
{
struct grub_gfxmenu_timeout_notify *cur;
for (cur = grub_gfxmenu_timeout_notifications; cur; cur = cur->next)
cur->set_state (cur->self, visible, start, value, end);
}
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static void
redraw_timeouts (struct grub_gfxmenu_view *view)
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{
struct grub_gfxmenu_timeout_notify *cur;
for (cur = grub_gfxmenu_timeout_notifications; cur; cur = cur->next)
{
grub_video_rect_t bounds;
cur->self->ops->get_bounds (cur->self, &bounds);
grub_gfxmenu_view_redraw (view, &bounds);
}
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}
void
grub_gfxmenu_print_timeout (int timeout, void *data)
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{
struct grub_gfxmenu_view *view = data;
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if (view->first_timeout == -1)
view->first_timeout = timeout;
update_timeouts (1, -view->first_timeout, -timeout, 0);
redraw_timeouts (view);
grub_video_swap_buffers ();
if (view->double_repaint)
redraw_timeouts (view);
}
void
grub_gfxmenu_clear_timeout (void *data)
{
struct grub_gfxmenu_view *view = data;
update_timeouts (0, 1, 0, 0);
redraw_timeouts (view);
grub_video_swap_buffers ();
if (view->double_repaint)
redraw_timeouts (view);
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}
static void
update_menu_visit (grub_gui_component_t component,
void *userdata)
{
grub_gfxmenu_view_t view;
view = userdata;
if (component->ops->is_instance (component, "list"))
{
grub_gui_list_t list = (grub_gui_list_t) component;
list->ops->set_view_info (list, view);
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}
}
/* Update any boot menu components with the current menu model and
theme path. */
static void
update_menu_components (grub_gfxmenu_view_t view)
{
grub_gui_iterate_recursively ((grub_gui_component_t) view->canvas,
update_menu_visit, view);
}
static void
refresh_menu_visit (grub_gui_component_t component,
void *userdata)
{
grub_gfxmenu_view_t view;
view = userdata;
if (component->ops->is_instance (component, "list"))
{
grub_gui_list_t list = (grub_gui_list_t) component;
list->ops->refresh_list (list, view);
}
}
/* Refresh list information (useful for submenus) */
static void
refresh_menu_components (grub_gfxmenu_view_t view)
{
grub_gui_iterate_recursively ((grub_gui_component_t) view->canvas,
refresh_menu_visit, view);
}
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static void
draw_message (grub_gfxmenu_view_t view)
{
char *text = view->progress_message_text;
grub_video_rect_t f = view->progress_message_frame;
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if (! text)
return;
grub_font_t font = view->message_font;
grub_video_color_t color = grub_video_map_rgba_color (view->message_color);
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/* Border. */
grub_video_fill_rect (color,
f.x-1, f.y-1, f.width+2, f.height+2);
/* Fill. */
grub_video_fill_rect (grub_video_map_rgba_color (view->message_bg_color),
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f.x, f.y, f.width, f.height);
/* Center the text. */
int text_width = grub_font_get_string_width (font, text);
int x = f.x + (f.width - text_width) / 2;
int y = (f.y + (f.height - grub_font_get_descent (font)) / 2
+ grub_font_get_ascent (font) / 2);
grub_font_draw_string (text, font, color, x, y);
}
void
grub_gfxmenu_view_redraw (grub_gfxmenu_view_t view,
const grub_video_rect_t *region)
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{
if (grub_video_have_common_points (&term_rect, region))
grub_gfxterm_schedule_repaint ();
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grub_video_set_active_render_target (GRUB_VIDEO_RENDER_TARGET_DISPLAY);
redraw_background (view, region);
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if (view->canvas)
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view->canvas->component.ops->paint (view->canvas, region);
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draw_title (view);
if (grub_video_have_common_points (&view->progress_message_frame, region))
draw_message (view);
}
void
grub_gfxmenu_view_draw (grub_gfxmenu_view_t view)
{
init_terminal (view);
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/* Clear the screen; there may be garbage left over in video memory. */
grub_video_fill_rect (grub_video_map_rgb (0, 0, 0),
view->screen.x, view->screen.y,
view->screen.width, view->screen.height);
grub_video_swap_buffers ();
if (view->double_repaint)
grub_video_fill_rect (grub_video_map_rgb (0, 0, 0),
view->screen.x, view->screen.y,
view->screen.width, view->screen.height);
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refresh_menu_components (view);
update_menu_components (view);
grub_gfxmenu_view_redraw (view, &view->screen);
grub_video_swap_buffers ();
if (view->double_repaint)
grub_gfxmenu_view_redraw (view, &view->screen);
}
static void
redraw_menu_visit (grub_gui_component_t component,
void *userdata)
{
grub_gfxmenu_view_t view;
view = userdata;
if (component->ops->is_instance (component, "list"))
{
grub_video_rect_t bounds;
component->ops->get_bounds (component, &bounds);
grub_gfxmenu_view_redraw (view, &bounds);
}
}
void
grub_gfxmenu_redraw_menu (grub_gfxmenu_view_t view)
{
update_menu_components (view);
grub_gui_iterate_recursively ((grub_gui_component_t) view->canvas,
redraw_menu_visit, view);
grub_video_swap_buffers ();
if (view->double_repaint)
{
grub_gui_iterate_recursively ((grub_gui_component_t) view->canvas,
redraw_menu_visit, view);
}
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}
void
grub_gfxmenu_set_chosen_entry (int entry, void *data)
{
grub_gfxmenu_view_t view = data;
view->selected = entry;
grub_gfxmenu_redraw_menu (view);
}
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static void
grub_gfxmenu_draw_terminal_box (void)
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{
grub_gfxmenu_box_t term_box;
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term_box = term_view->terminal_box;
if (!term_box)
return;
term_box->set_content_size (term_box, term_rect.width,
term_rect.height);
term_box->draw (term_box,
term_rect.x - term_box->get_left_pad (term_box),
term_rect.y - term_box->get_top_pad (term_box));
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}
static void
init_terminal (grub_gfxmenu_view_t view)
{
const int border_width = 3;
grub_font_t terminal_font;
unsigned int line_width;
struct grub_font_glyph *glyph;
terminal_font = grub_font_get (view->terminal_font_name);
if (!terminal_font)
{
grub_error (GRUB_ERR_BAD_FONT, "no font loaded");
return;
}
glyph = grub_font_get_glyph (terminal_font, 'M');
line_width = ((glyph ? glyph->device_width : 8) * 80 + 2 * border_width);
if (view->screen.width <= line_width)
/* The screen is too small. Use all space, except a small border
to show the user, it is a window and not full screen: */
term_rect.width = view->screen.width - 6 * border_width;
else
{
/* The screen is big enough. Try 70% of the screen width: */
term_rect.width = view->screen.width * 7 / 10;
/* Make sure, that we use at least the line_width: */
if ( term_rect.width < line_width )
term_rect.width = line_width;
}
term_rect.height = view->screen.height * 7 / 10;
term_rect.x = view->screen.x + (view->screen.width - term_rect.width) / 2;
term_rect.y = view->screen.y + (view->screen.height - term_rect.height) / 2;
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term_view = view;
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/* Note: currently there is no API for changing the gfxterm font
on the fly, so whatever font the initially loaded theme specifies
will be permanent. */
grub_gfxterm_set_window (GRUB_VIDEO_RENDER_TARGET_DISPLAY, term_rect.x,
term_rect.y,
term_rect.width, term_rect.height,
view->double_repaint, terminal_font,
border_width);
grub_gfxterm_decorator_hook = grub_gfxmenu_draw_terminal_box;
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}
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/* FIXME: previously notifications were displayed in special case.
Is it necessary?
*/
#if 0
/* Sets MESSAGE as the progress message for the view.
MESSAGE can be 0, in which case no message is displayed. */
static void
set_progress_message (grub_gfxmenu_view_t view, const char *message)
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{
grub_free (view->progress_message_text);
if (message)
view->progress_message_text = grub_strdup (message);
else
view->progress_message_text = 0;
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}
static void
notify_booting (grub_menu_entry_t entry, void *userdata)
{
grub_gfxmenu_view_t view = (grub_gfxmenu_view_t) userdata;
char *s = grub_malloc (100 + grub_strlen (entry->title));
if (!s)
return;
grub_sprintf (s, "Booting '%s'", entry->title);
set_progress_message (view, s);
grub_free (s);
grub_gfxmenu_view_redraw (view, &view->progress_message_frame);
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grub_video_swap_buffers ();
if (view->double_repaint)
grub_gfxmenu_view_redraw (view, &view->progress_message_frame);
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}
static void
notify_fallback (grub_menu_entry_t entry, void *userdata)
{
grub_gfxmenu_view_t view = (grub_gfxmenu_view_t) userdata;
char *s = grub_malloc (100 + grub_strlen (entry->title));
if (!s)
return;
grub_sprintf (s, "Falling back to '%s'", entry->title);
set_progress_message (view, s);
grub_free (s);
grub_gfxmenu_view_redraw (view, &view->progress_message_frame);
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grub_video_swap_buffers ();
if (view->double_repaint)
grub_gfxmenu_view_redraw (view, &view->progress_message_frame);
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}
static void
notify_execution_failure (void *userdata __attribute__ ((unused)))
{
}
static struct grub_menu_execute_callback execute_callback =
{
.notify_booting = notify_booting,
.notify_fallback = notify_fallback,
.notify_failure = notify_execution_failure
};
#endif