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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2006,2007,2008,2009,2013 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/term.h>
#include <grub/types.h>
#include <grub/dl.h>
#include <grub/misc.h>
#include <grub/font.h>
#include <grub/mm.h>
#include <grub/env.h>
#include <grub/video.h>
#include <grub/gfxterm.h>
#include <grub/bitmap.h>
#include <grub/command.h>
#include <grub/extcmd.h>
#include <grub/bitmap_scale.h>
#include <grub/i18n.h>
#include <grub/color.h>
GRUB_MOD_LICENSE ("GPLv3+");
/* Option array indices. */
enum
{
BACKGROUND_CMD_ARGINDEX_MODE = 0
};
static const struct grub_arg_option background_image_cmd_options[] =
{
{"mode", 'm', 0, N_("Background image mode."),
/* TRANSLATORS: This refers to background image mode (stretched or
in left-top corner). Note that GRUB will accept only original
keywords stretch and normal, not the translated ones.
So please put both in translation
e.g. stretch(=%STRETCH%)|normal(=%NORMAL%).
The percents mark the translated version. Since many people
may not know the word stretch or normal I recommend
putting the translation either here or in "Background image mode."
string. */
N_("stretch|normal"),
ARG_TYPE_STRING},
{0, 0, 0, 0, 0, 0}
};
static grub_err_t
grub_gfxterm_background_image_cmd (grub_extcmd_context_t ctxt,
int argc, char **args)
{
struct grub_arg_list *state = ctxt->state;
/* Check that we have video adapter active. */
if (grub_video_get_info(NULL) != GRUB_ERR_NONE)
return grub_errno;
/* Destroy existing background bitmap if loaded. */
if (grub_gfxterm_background.bitmap)
{
grub_video_bitmap_destroy (grub_gfxterm_background.bitmap);
grub_gfxterm_background.bitmap = 0;
grub_gfxterm_background.blend_text_bg = 0;
/* Mark whole screen as dirty. */
grub_gfxterm_schedule_repaint ();
}
/* If filename was provided, try to load that. */
if (argc >= 1)
{
/* Try to load new one. */
grub_video_bitmap_load (&grub_gfxterm_background.bitmap, args[0]);
if (grub_errno != GRUB_ERR_NONE)
return grub_errno;
/* Determine if the bitmap should be scaled to fit the screen. */
if (!state[BACKGROUND_CMD_ARGINDEX_MODE].set
|| grub_strcmp (state[BACKGROUND_CMD_ARGINDEX_MODE].arg,
"stretch") == 0)
{
unsigned int width, height;
grub_gfxterm_get_dimensions (&width, &height);
if (width
!= grub_video_bitmap_get_width (grub_gfxterm_background.bitmap)
|| height
!= grub_video_bitmap_get_height (grub_gfxterm_background.bitmap))
{
struct grub_video_bitmap *scaled_bitmap;
grub_video_bitmap_create_scaled (&scaled_bitmap,
width,
height,
grub_gfxterm_background.bitmap,
GRUB_VIDEO_BITMAP_SCALE_METHOD_BEST);
if (grub_errno == GRUB_ERR_NONE)
{
/* Replace the original bitmap with the scaled one. */
grub_video_bitmap_destroy (grub_gfxterm_background.bitmap);
grub_gfxterm_background.bitmap = scaled_bitmap;
}
}
}
/* If bitmap was loaded correctly, display it. */
if (grub_gfxterm_background.bitmap)
{
grub_gfxterm_background.blend_text_bg = 1;
/* Mark whole screen as dirty. */
grub_gfxterm_schedule_repaint ();
}
}
/* All was ok. */
grub_errno = GRUB_ERR_NONE;
return grub_errno;
}
static grub_err_t
grub_gfxterm_background_color_cmd (grub_command_t cmd __attribute__ ((unused)),
int argc, char **args)
{
if (argc != 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
/* Check that we have video adapter active. */
if (grub_video_get_info (NULL) != GRUB_ERR_NONE)
return grub_errno;
if (grub_video_parse_color (args[0],
&grub_gfxterm_background.default_bg_color)
!= GRUB_ERR_NONE)
return grub_errno;
/* Destroy existing background bitmap if loaded. */
if (grub_gfxterm_background.bitmap)
{
grub_video_bitmap_destroy (grub_gfxterm_background.bitmap);
grub_gfxterm_background.bitmap = 0;
/* Mark whole screen as dirty. */
grub_gfxterm_schedule_repaint ();
}
/* Set the background and border colors. The background color needs to be
compatible with the text layer. */
grub_gfxterm_video_update_color ();
grub_gfxterm_background.blend_text_bg = 1;
/* Mark whole screen as dirty. */
grub_gfxterm_schedule_repaint ();
return GRUB_ERR_NONE;
}
static grub_extcmd_t background_image_cmd_handle;
static grub_command_t background_color_cmd_handle;
GRUB_MOD_INIT(gfxterm_background)
{
background_image_cmd_handle =
grub_register_extcmd ("background_image",
grub_gfxterm_background_image_cmd, 0,
N_("[-m (stretch|normal)] FILE"),
N_("Load background image for active terminal."),
background_image_cmd_options);
background_color_cmd_handle =
grub_register_command ("background_color",
grub_gfxterm_background_color_cmd,
N_("COLOR"),
N_("Set background color for active terminal."));
}
GRUB_MOD_FINI(gfxterm_background)
{
grub_unregister_command (background_color_cmd_handle);
grub_unregister_extcmd (background_image_cmd_handle);
}
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