#!/usr/bin/perl

use strict;
use lib qw(/usr/lib/libDrakX);
use standalone;
use common;
use ugtk2 qw(:create :dialogs :helpers :wrappers);
use interactive;
use bootsplash;
use Xconfig::resolution_and_depth;

my $in = 'interactive'->vnew('su');

my $window = ugtk2->new('DrakSplash');
$window->{rwindow}->signal_connect(delete_event => \&close_window);

my ($image_area, $image_pixbuf);
create_image_area();

#- verification of package image magik
unless ($in->do_pkgs->ensure_is_installed('ImageMagick', '/usr/bin/convert')) {
    $in->ask_okcancel(N("Error"), N("package 'ImageMagick' is required to be able to complete configuration.\nClick \"Ok\" to install 'ImageMagick' or \"Cancel\" to quit")) 
        && $in->do_pkgs->install('ImageMagick')
        or close_window();
}

my @resolutions = uniq(map { "$_->{X}x$_->{Y}" } Xconfig::resolution_and_depth::bios_vga_modes());
my %scale_settings = (
		      tx => [ 1/10, N("x coordinate of text box\nin number of characters") ],
		      ty => [ 1/10, N("y coordinate of text box\nin number of characters") ],
		      tw => [ 8/10, N("text width") ],
		      th => [ 8/10, N("text box height") ],
		      px => [ 2/10, N("the progress bar x coordinate\nof its upper left corner") ],
		      py => [ 7/10, N("the progress bar y coordinate\nof its upper left corner") ],
		      pw => [ 6/10, N("the width of the progress bar") ],
		      ph => [ 1/10, N("the height of the progress bar") ],
		     );

my (%theme, %adj);
set_theme('new_theme');
set_resolution(@resolutions);

gtkadd($window->{window},
       gtkadd(Gtk2::HBox->new(1, 5),
	      gtkadd(Gtk2::VBox->new(0, 5),
		     gtkadd(Gtk2::Frame->new(N("first step creation")),
			    create_packtable({ col_spacings => 10, row_spacings => 5 },
					     [ Gtk2::Label->new(N("Theme name")),
					       gtksignal_connect(Gtk2::ComboBoxEntry->new_with_strings([ bootsplash::themes_list() ], $theme{name}),
								 changed => sub { set_theme($_[0]->entry->get_text) }) ],
					     [ Gtk2::Label->new(N("final resolution")),
					       gtksignal_connect(Gtk2::ComboBox->new_with_strings(\@resolutions, $theme{res}),
								 changed => sub { set_resolution($_[0]->entry->get_text) }) ],
					     [ Gtk2::Label->new(N("choose image file")),
					       gtksignal_connect(Gtk2::Button->new(N("Browse")), clicked => \&choose_image) ])),
		     gtkadd(Gtk2::Frame->new(N("Configure bootsplash picture")),
			    create_packtable({ col_spacings => 10, row_spacings => 5 },
					     (map { [ Gtk2::Label->new($scale_settings{$_}[1]), new_scale($_) ] } sort keys %scale_settings),
					     [ Gtk2::Label->new(N("the color of the progress bar")),
					       gtksignal_connect(Gtk2::Button->new(N("Choose color")), clicked => \&choose_color) ],
					     [ gtksignal_connect(Gtk2::CheckButton->new(N("Display logo on Console")), toggled => sub {
								     $theme{conf}{logo} = bool2yesno($_[0]->get_active);
								 }) ])),
		     gtksignal_connect(Gtk2::Button->new(N("Save theme")), clicked => \&save_theme),
		     gtksignal_connect(Gtk2::Button->new(N("Quit")), clicked => \&close_window)),
	      $image_area));

my %scale_links = (tx => 'tw', ty => 'th', px => 'pw', py => 'ph');
while (my ($n1, $n2) = each(%scale_links)) {
    $adj{$n1}->signal_connect(value_changed => sub { check_scale_value($n1, $n2); apply_scale($n1) });
    $adj{$n2}->signal_connect(value_changed => sub { check_scale_value($n2, $n1); apply_scale($n2) });
}

update_scale_values();

$window->{rwindow}->set_border_width(5);
$window->{rwindow}->set_position('center');
$window->{rwindow}->show_all;
$window->main;

# Should never get here
ugtk2->exit(0);


sub close_window() {
   ugtk2->exit(0);
}

sub read_theme_config {
    my $conf = bootsplash::theme_get_config_for_resolution($theme{name}, $theme{res});
    -f $conf and $theme{conf} = bootsplash::theme_read_config_for_resolution($theme{name}, $theme{res});
    -f $theme{conf}{silentjpeg} && load_image($theme{conf}{silentjpeg}) and $theme{image} = $theme{conf}{silentjpeg};
    $theme{conf}{pc} ||= '0x21459d';
    update_scale_values();
}

sub set_theme {
    my ($name) = @_;
    $theme{name} = $name;
    read_theme_config();
}

sub set_resolution {
    my ($res) = @_;
    $theme{res} = $res;
    ($theme{res_w}, $theme{res_h}) = $theme{res} =~ /([^x]+)x([^x]+)/;
    read_theme_config();
    foreach (keys %scale_settings) {
	$theme{conf}{$_} eq '' and $theme{conf}{$_} = get_scale_max($_) * $scale_settings{$_}[0];
    }
    update_scale_values();
    $image_area->set_size_request($theme{res_w}, $theme{res_w});
}

sub save_theme() {
    my $_w = $in->wait_message('', N("saving Bootsplash theme..."));
    bootsplash::theme_set_image_for_resolution($theme{name}, $theme{res}, $theme{image});
    bootsplash::theme_write_config_for_resolution($theme{name}, $theme{res}, $theme{conf});
}

sub load_image {
    my ($img) = @_;
    $image_pixbuf = Gtk2::Gdk::Pixbuf->new_from_file($img);
    $image_pixbuf = $image_pixbuf->scale_simple($theme{res_w}, $theme{res_h}, 'hyper');
    $image_area->queue_draw;
    1;
}

sub choose_image() {
    my $file_dialog = Gtk2::FileChooserDialog->new(N("choose image"), $window->{real_window}, 'open', N("Cancel") => 'cancel', N("Ok") => 'ok');
    $file_dialog->set_filename($theme{image} || '~/');
    $file_dialog->show;
    while (my $answer = $file_dialog->run) {
	if (member($answer, qw(cancel delete-event))) {
	    $file_dialog->destroy;
	    return;
	} elsif ($answer eq 'ok' && load_image(my $img = $file_dialog->get_filename)) {
	    $theme{image} = $img;
	    $file_dialog->destroy;
	    return;
	}
    }
}

sub choose_color() {
    my $color = gtkshow(Gtk2::ColorSelectionDialog->new(N("ProgressBar color selection")));
    my @rgb = $theme{boot_conf}{pc} =~ m/0x(.{2})(.{2})(.{2})/ && map { hex($_)/255 } ($1, $2, $3);
    $color->colorsel->set_current_color(gtkcolor(@rgb));
    $color->cancel_button->signal_connect(clicked => sub { $color->destroy });
    $color->ok_button->signal_connect(clicked => sub {
					  my $colour = $color->colorsel->get_current_color;
					  $theme{boot_conf}{pc} = "0x" . join('', map { print "$_\n"; sprintf("%x", $_*255) } $colour->red, $colour->green, $colour->blue);
					  $color->destroy;
				      });
}


#- Adjustement widgets
sub new_scale {
    my ($name) = @_;
    my $w = Gtk2::HScale->new($adj{$name} = Gtk2::Adjustment->new(0, 0, 0, 1, 10, 0));
    $w->set_digits(0);
    $w;
}
sub get_scale_max {
    my ($name) = @_;
    $theme{$name =~ /[xw]$/ ? "res_w" : "res_h"};
}
sub apply_scale {
    my ($name) = @_;
    $theme{conf}{$name} = $adj{$name}->get_value;
    $image_area->queue_draw;
}
sub check_scale_value {
    my ($changed, $linked) = @_;
    my $max = get_scale_max($changed) - $adj{$changed}->get_value;
    $adj{$linked}->get_value > $max and $adj{$linked}->set_value($max);
}
sub update_scale_values {
    foreach (keys %adj) {
	$adj{$_}->upper(get_scale_max($_));
	$adj{$_}->set_value($theme{conf}{$_});
    }
}


#- FIXME duplicate with draksplash2

sub create_image_area() {
    $image_area = Gtk2::DrawingArea->new;
    $image_area->can_focus(1);
    $image_area->add_events('button-press-mask');
    $image_area->signal_connect(expose_event => \&image_expose);
    my $keys = {
	$Gtk2::Gdk::Keysyms{q} => \&close_window,
	$Gtk2::Gdk::Keysyms{Escape} => \&close_window,
    };

    $image_area->signal_connect(key_press_event => sub {
	my (undef, $event) = @_;

	if (my $f = $keys->{$event->keyval}) {
	    $f->(member('control-mask', @{$event->state}));
	}
	1;
    });

    $image_area->grab_focus;
    $image_area->show;
    $image_area;
}

sub image_expose {
    my ($widget) = @_;
    my $window = $widget->window;
    $window->draw_pixbuf($widget->style->white_gc, $image_pixbuf, 0, 0, 0, 0, -1, -1, 'none', 0, 0) if $image_pixbuf;
    $window->draw_rectangle($widget->style->black_gc, 0, @{$theme{conf}}{'tx', 'ty', 'tw', 'th'});
    my ($tx1, $ty1) = @{$theme{conf}}{'tx', 'ty'};
    my ($tx2, $ty2) = ($tx1 + $theme{conf}{tw}, $ty1 + $theme{conf}{th});
    $window->draw_line($widget->style->white_gc, $tx1, $ty1, $tx2, $ty2);
    $window->draw_line($widget->style->white_gc, $tx1, $ty2, $tx2, $ty1);
    0;
}