drakx - Mageia Installer and base platform for many utilities

Mageia Installer and base platform for many utilities

Thierry Vignaud [tv]

diff options

author	Olivier Blin <oblin@mandriva.com>	2009-10-28 16:10:14 +0000
committer	Olivier Blin <oblin@mandriva.com>	2009-10-28 16:10:14 +0000
commit	8bbaf9c04aa5ba62fecd16bfb639202a9031b094 (patch)
tree	d83cc7158c619f3076a59393858741468ad529bf /tools/serial_probe
parent	c91ce2f3e458fb596d0938d33f773a70be2338d5 (diff)
download	drakx-8bbaf9c04aa5ba62fecd16bfb639202a9031b094.tar drakx-8bbaf9c04aa5ba62fecd16bfb639202a9031b094.tar.gz drakx-8bbaf9c04aa5ba62fecd16bfb639202a9031b094.tar.bz2 drakx-8bbaf9c04aa5ba62fecd16bfb639202a9031b094.tar.xz drakx-8bbaf9c04aa5ba62fecd16bfb639202a9031b094.zip

remove arguments to update_size_labels, they are always the same

Diffstat (limited to 'tools/serial_probe')

0 files changed, 0 insertions, 0 deletions

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package ugtk2;

use diagnostics;
use strict;
use vars qw(@ISA %EXPORT_TAGS @EXPORT_OK @icon_paths $force_center $force_focus $force_position $grab $pop_it $border); #- leave it on one line, for automatic removal of the line at package creation

@ISA = qw(Exporter);
%EXPORT_TAGS = (
    wrappers => [ qw(gtkadd gtkappend gtkappend_page gtkappenditems gtkcombo_setpopdown_strings gtkdestroy
                     gtkentry gtkexpand gtkflush gtkhide gtkmodify_font gtkmove gtkpack gtkpack2 gtkpack2_
                     gtkpack2__ gtkpack_ gtkpack__ gtkpowerpack gtkput gtkradio gtkresize gtkroot
                     gtkset_active gtkset_border_width gtkset_editable gtkset_justify gtkset_layout gtkset_markup
                     gtkset_modal gtkset_mousecursor gtkset_mousecursor_normal gtkset_mousecursor_wait gtkset_name
                     gtkset_property gtkset_relief gtkset_selectable gtkset_sensitive gtkset_shadow_type gtkset_size_request
                     gtkset_text gtkset_tip gtkset_visibility gtksetstyle gtkshow gtksignal_connect gtksize gtktext_append
                     gtktext_insert ) ],

    helpers => [ qw(add2notebook add_icon_path fill_tiled fill_tiled_coords get_text_coord gtkcolor gtkcreate_img
                    gtkcreate_pixbuf gtkfontinfo gtkset_background n_line_size set_back_pixbuf string_size
                    string_width string_height wrap_paragraph) ],

    create => [ qw(create_adjustment create_box_with_title create_dialog create_factory_menu create_factory_popup_menu
                   create_hbox create_hpaned create_menu create_notebook create_okcancel create_packtable
                   create_scrolled_window create_vbox create_vpaned destroy_window _create_dialog ) ],

    ask => [ qw(ask_browse_tree_info ask_browse_tree_info_given_widgets ask_dir ask_from_entry ask_okcancel ask_warn
                ask_yesorno ) ],
    dialogs => [ qw(err_dialog warn_dialog) ],

);
$EXPORT_TAGS{all} = [ map { @$_ } values %EXPORT_TAGS ];
@EXPORT_OK = map { @$_ } values %EXPORT_TAGS;

use c;
use log;
use common;

use Gtk2;
use Gtk2::Gdk::Keysyms;

unless ($::no_ugtk_init) {
    !check_for_xserver() and die "Cannot be run in console mode.\n";
    $::one_message_has_been_translated and warn("N() was called from $::one_message_has_been_translated BEFORE gtk2 initialisation, replace it with a N_() AND a translate() later.\n"), c::_exit(1);

    Gtk2->init;
    c::bind_textdomain_codeset($_, 'UTF8') foreach 'libDrakX', @::textdomains;
    $::need_utf8_i18n = 1;
}


$border = 5;


# -=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---
#                 wrappers
#
# Functional-style wrappers to existing Gtk functions; allows to program in
# a more functional way, and especially, first, to avoid using temp
# variables, and second, to "see" directly in the code the user interface
# you're building.

sub gtkdestroy                { $_[0] and $_[0]->destroy }
sub gtkflush()                { Gtk2->main_iteration while Gtk2->events_pending }
sub gtkhide                   { $_[0]->hide; $_[0] }
sub gtkmove                   { $_[0]->window->move($_[1], $_[2]); $_[0] }
sub gtkpack                   { gtkpowerpack(1, 1, @_) }
sub gtkpack_                  { gtkpowerpack('arg', 1, @_) }
sub gtkpack__                 { gtkpowerpack(0, 1, @_) }
sub gtkpack2                  { gtkpowerpack(1, 0, @_) }
sub gtkpack2_                 { gtkpowerpack('arg', 0, @_) }
sub gtkpack2__                { gtkpowerpack(0, 0, @_) }
sub gtkput                    { $_[0]->put(gtkshow($_[1]), $_[2], $_[3]); $_[0] }
sub gtkresize                 { $_[0]->window->resize($_[1], $_[2]); $_[0] }
sub gtkset_active             { $_[0]->set_active($_[1]); $_[0] }
sub gtkset_border_width       { $_[0]->set_border_width($_[1]); $_[0] }
sub gtkset_editable           { $_[0]->set_editable($_[1]); $_[0] }
sub gtkset_selectable         { $_[0]->set_selectable($_[1]); $_[0] }
sub gtkset_justify            { $_[0]->set_justify($_[1]); $_[0] }
sub gtkset_layout             { $_[0]->set_layout($_[1]); $_[0] }
sub gtkset_modal              { $_[0]->set_modal($_[1]); $_[0] }
sub gtkset_mousecursor_normal { gtkset_mousecursor('left-ptr', @_) }
sub gtkset_mousecursor_wait   { gtkset_mousecursor('watch', @_) }
sub gtkset_relief             { $_[0]->set_relief($_[1]); $_[0] }
sub gtkset_sensitive          { $_[0]->set_sensitive($_[1]); $_[0] }
sub gtkset_visibility         { $_[0]->set_visibility($_[1]); $_[0] }
sub gtkset_tip                { $_[0]->set_tip($_[1], $_[2]) if $_[2]; $_[1] }
sub gtkset_shadow_type        { $_[0]->set_shadow_type($_[1]); $_[0] }
sub gtkset_style              { $_[0]->set_style($_[1]); $_[0] }
sub gtkset_size_request       { $_[0]->set_size_request($_[1], $_[2]); $_[0] }
sub gtkshow                   { $_[0]->show; $_[0] }
sub gtksize                   { $_[0]->size($_[1], $_[2]); $_[0] }
sub gtkexpand                 { $_[0]->expand; $_[0] }
sub gtkset_markup             { $_[0]->set_markup($_[1]); $_[0] }

sub gtkadd {
    my $w = shift;
    foreach (@_) {
	my $l = $_;
	ref $l or $l = Gtk2::Label->new($l);
	$w->add(gtkshow($l));
    }
    $w
}

sub gtkappend {
    my $w = shift;
    foreach (@_) {
	my $l = $_;
	ref $l or $l = Gtk2::Label->new($l);
	$w->append(gtkshow($l));
    }
    $w
}

sub gtkappenditems {
    my $w = shift;
    $_->show foreach @_;
    $w->append_items(@_);
    $w
}

# append page to a notebook
sub gtkappend_page {
    my $w = shift;
    $w->append_page(@_);
    $w
}

sub gtkbuttonset {
    gtkdestroy($_[0]->child);
    gtkadd($_[0], gtkshow($_[1]))
}

sub gtkentry {
    my ($text) = @_;
    my $e = Gtk2::Entry->new;
    $text and $e->set_text($text);
    $e;
}

sub gtksetstyle { 
    my ($w, $s) = @_;
    $w->set_style($s);
    $w;
}

sub gtkradio {
    my $def = shift;
    my $radio;
    map { gtkset_active($radio = Gtk2::RadioButton->new($radio ? $radio->get_group : undef, $_), $_ eq $def) } @_;
}

sub gtkroot() {
    my $root if 0;
    $root ||= Gtk2::Gdk->get_default_root_window;
}

sub gtkset_text {
    my ($w, $s) = @_;
    $w->set_text($s);
    $w;
}

sub gtkcombo_setpopdown_strings {
    my $w = shift;
    $w->set_popdown_strings(@_);
    $w;
}

sub gtkset_mousecursor {
    my ($type, $w) = @_;
    ($w || gtkroot())->set_cursor(Gtk2::Gdk::Cursor->new($type));
}

sub gtksignal_connect {
    my $w = shift;
    $w->signal_connect(@_);
    $w;
}

sub gtkset_name {
    my ($widget, $name) = @_;
    $widget->set_name($name);
    $widget;
}


sub gtkpowerpack {
    #- Get Default Attributes (if any). 2 syntaxes allowed :
    #- gtkpowerpack( {expand => 1, fill => 0}, $box...) : the attributes are picked from a specified hash ref
    #- gtkpowerpack(1, 0, 1, $box, ...) : the attributes are picked from the non-ref list, in the order (expand, fill, padding, pack_end).
    my @attributes_list = qw(expand fill padding pack_end);
    my $default_attrs = {};
    if (ref($_[0]) eq 'HASH') {
	$default_attrs = shift;
    } elsif (!ref($_[0])) {
	foreach (@attributes_list) {
	    ref($_[0]) and last;
	    $default_attrs->{$_} = shift;
	}
    }
    my $box = shift;

    while (@_) {
	#- Get attributes (if specified). 4 syntaxes allowed (default values are undef ie. false...) :
	#- gtkpowerpack({defaultattrs}, $box, $widget1, $widget2, ...) : the attrs are picked from the default ones (if they exist)
	#- gtkpowerpack($box, {fill=>1, expand=>0, ...}, $widget1, ...) : the attributes are picked from a specified hash ref
	#- gtkpowerpack($box, [1,0,1], $widget1, ...) : the attributes are picked from the array ref : (expand, fill, padding, pack_end).
	#- gtkpowerpack({attr=>'arg'}, $box, 1, $widget1, 0, $widget2, etc...) : the 'arg' value will tell gtkpowerpack to always read the 
	#- attr value directly in the arg list (avoiding confusion between value 0 and Gtk::Label("0"). That can simplify some writings but
	#- this arg(s) MUST then be present...
	my (%attr, $attrs);
	ref($_[0]) eq 'HASH' || ref($_[0]) eq 'ARRAY' and $attrs = shift;
	foreach (@attributes_list) {
	    if (($default_attrs->{$_} || '') eq 'arg') {
		ref($_[0]) and die "error in packing definition\n";
		$attr{$_} = shift;
		ref($attrs) eq 'ARRAY' and shift @$attrs;
	    } elsif (ref($attrs) eq 'HASH' && defined($attrs->{$_})) {
		$attr{$_} = $attrs->{$_};
	    } elsif (ref($attrs) eq 'ARRAY') {
		$attr{$_} = shift @$attrs;
	    } elsif (defined($default_attrs->{$_})) {
		$attr{$_} = int $default_attrs->{$_};
	    } else {
		$attr{$_} = 0;
	    }
	}
	#- Get and pack the widget (create it if necessary to  a label...)
	my $widget = ref($_[0]) ? shift : Gtk2::Label->new(shift);
	my $pack_call = 'pack_'.($attr{pack_end} ? 'end' : 'start');
	$box->$pack_call($widget, $attr{expand}, $attr{fill}, $attr{padding});
	$widget->show;
    }
    return $box;
}

sub gtktreeview_children {
    my ($model, $iter) = @_;
    my @l;
    $model && $iter or return;
    for (my $p = $model->iter_children($iter); $p; $p = $model->iter_next($p)) {
	push @l, $p;
    }
    @l;
}



# -=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---
#                 create
#
# Helpers that allow omitting common operations on common widgets
# (e.g. create widgets with good default properties)

sub create_pixbutton {
    my ($label, $pix, $reverse_order) = @_;
    my @label_and_pix = (0, $label, if_($pix, 0, $pix));
    gtkadd(Gtk2::Button->new,
	   gtkpack_(Gtk2::HBox->new(0, 3),
		    1, "",
		    $reverse_order ? reverse(@label_and_pix) : @label_and_pix,
		    1, ""));
}

sub create_adjustment {
    my ($val, $min, $max) = @_;
    Gtk2::Adjustment->new($val, $min, $max + 1, 1, ($max - $min + 1) / 10, 1);
}

sub create_scrolled_window {
    my ($W, $o_policy, $o_viewport_shadow) = @_;
    my $w = Gtk2::ScrolledWindow->new(undef, undef);
    $w->set_policy($o_policy ? @$o_policy : ('automatic', 'automatic'));
    if (member(ref($W), qw(Gtk2::Layout Gtk2::Text Gtk2::TextView Gtk2::TreeView))) {
	$w->add($W)
    } else {
	$w->add_with_viewport($W);
    }
    $o_viewport_shadow and gtkset_shadow_type($w->child, $o_viewport_shadow);
    $W->can('set_focus_vadjustment') and $W->set_focus_vadjustment($w->get_vadjustment);
    $W->show;
    if (ref($W) eq 'Gtk2::TextView') {
    	gtkadd(gtkset_shadow_type(Gtk2::Frame->new, 'in'), $w)
    } else {
	$w
    }
}

sub n_line_size {
    my ($nbline, $type, $widget) = @_;
    my $spacing = ${{ text => 3, various => 17 }}{$type};
    my %fontinfo = gtkfontinfo($widget);
    round($nbline * ($fontinfo{ascent} + $fontinfo{descent} + $spacing) + 8);
}

sub create_box_with_title {
    my $o = shift;

    my $nbline = sum(map { round(length($_) / 60 + 1/2) } map { split "\n" } @_);
    my $box = Gtk2::VBox->new(0,0);
    if ($nbline == 0) {
	$o->{box_size} = 0;
	return $box;
    }
    $o->{box_size} = n_line_size($nbline, 'text', $box);
	my $a = !$::no_separator;
	undef $::no_separator;
	if ($o->{icon} && (!$::isWizard || $::isInstall)) {
	    gtkpack__($box,
		      gtkpack_(Gtk2::HBox->new(0,0),
			       0, gtkset_size_request(Gtk2::VBox->new(0,0), 15, 0),
			       0, eval { gtkcreate_img($o->{icon}) },
			       0, gtkset_size_request(Gtk2::VBox->new(0,0), 15, 0),
			       1, gtkpack_($o->{box_title} = Gtk2::VBox->new(0,0),
					   1, Gtk2::HBox->new(0,0),
					   (map {
					       my $w = ref($_) ? $_ : Gtk2::Label->new($_);
					       $::isWizard and $w->set_justify("left");
					       (0, gtkset_name($w, "Title"));
					   } map { ref($_) ? $_ : warp_text($_) } @_),
					   1, Gtk2::HBox->new(0,0),
					  )
			      ),
		      if_($a, Gtk2::HSeparator->new)
		     )
	} else {
	    gtkpack__($box,
		      if_($::isWizard, gtkset_size_request(Gtk2::Label->new, 0, 10)),
		      (map {
			  my $w = ref($_) ? $_ : Gtk2::Label->new($_);
			  gtkset_name($w, "Title");
			  $::isWizard ? gtkpack__(Gtk2::HBox->new(0,0), gtkset_size_request(Gtk2::Label->new, 20, 0), $w)
			              : $w
		      } map { ref($_) ? $_ : warp_text($_) } @_),
		      if_($::isWizard, gtkset_size_request(Gtk2::Label->new, 0, 15)),
		      if_($a, Gtk2::HSeparator->new)
		     )
	}
}

sub _create_dialog {
    my ($title, $o_options) = @_;
    my $dialog = Gtk2::Dialog->new;
    $dialog->set_title($title);
    $dialog->set_position('center-on-parent');  # center-on-parent doesn't work
    $dialog->set_size_request(-1, $o_options->{small} ? -1 : 400);
    $dialog->set_modal(1);
    $dialog;
}


# drakfloppy / drakfont / harddrake2 / mcc
sub create_dialog {
    my ($title, $label, $o_options) = @_;
    my $ret = 0;
    my $dialog = _create_dialog($title, $o_options);
    $dialog->set_border_width(10);
    my $text = $o_options->{use_markup} ? gtkset_markup(Gtk2::Label->new, $label) : Gtk2::Label->new($label);
    gtkpack($dialog->vbox,
            gtkpack_(Gtk2::HBox->new,
                     if_($o_options->{stock}, 0, Gtk2::Image->new_from_stock($o_options->{stock}, 'dialog')),
                     1, create_scrolled_window($text, [ 'never', 'automatic' ]),
                    ),
           );
    $text->set_line_wrap(1);

    if ($o_options->{cancel}) {
	my $button2 = Gtk2::Button->new_from_stock('gtk-cancel');
	$button2->signal_connect(clicked => sub { $ret = 0; $dialog->destroy; Gtk2->main_quit });
	$button2->can_default(1);
	$dialog->action_area->pack_start($button2, 1, 1, 0);
    }

    my $button = Gtk2::Button->new_from_stock('gtk-ok');
    $button->can_default(1);
    $button->signal_connect(clicked => sub { $ret = 1; $dialog->destroy; Gtk2->main_quit });
    $dialog->action_area->pack_start($button, 1, 1, 0);
    $button->grab_default;

    $dialog->show_all;
    Gtk2->main;
    $ret;
}

sub warn_dialog {
    my ($title, $label, $o_options) = @_;
    $o_options ||= { };
    add2hash_($o_options, { small => 1, stock => 'gtk-dialog-warning', cancel => 1 });
    create_dialog($title, $label, $o_options);
}

sub err_dialog {
    my ($title, $label, $o_options) = @_;
    $o_options ||= { };
    add2hash_($o_options, { small => 1, stock => 'gtk-dialog-error' });
    create_dialog($title, $label, $o_options);
}

sub create_hbox { gtkset_layout(gtkset_border_width(Gtk2::HButtonBox->new, 3), $_[0] || 'spread') }
sub create_vbox { gtkset_layout(Gtk2::VButtonBox->new, $_[0] || 'spread') }

sub create_factory_menu_ {
    my ($type, $name, $window, @menu_items) = @_;
    my $widget = Gtk2::ItemFactory->new($type, $name, my $accel_group = Gtk2::AccelGroup->new);
    $widget->create_items($window, @menu_items);
    $window->add_accel_group($accel_group);
    ($widget->get_widget($name), $widget);
}

sub create_factory_popup_menu { create_factory_menu_("Gtk2::Menu", '<main>', @_) }
sub create_factory_menu { create_factory_menu_("Gtk2::MenuBar", '<main>', @_) }

sub create_menu {
    my $title = shift;
    my $w = Gtk2::MenuItem->new($title);
    $w->set_submenu(gtkshow(gtkappend(Gtk2::Menu->new, @_)));
    $w
}

sub create_notebook {
    my $n = Gtk2::Notebook->new;
    while (@_) {
	my ($title, $book) = splice(@_, 0, 2);
	add2notebook($n, $title, $book);
    }
    $n
}

sub create_packtable {
    my ($options, @l) = @_;
    my $w = Gtk2::Table->new(0, 0, $options->{homogeneous} || 0);
    each_index {
	my ($i, $l) = ($::i, $_);
	each_index {
	    my $j = $::i;
	    if ($_) {
		ref $_ or $_ = Gtk2::Label->new($_);
		$j != $#$l && !$options->{mcc} ?
		  $w->attach($_, $j, $j + 1, $i, $i + 1,
			     'fill', 'fill', 5, 0) :
		  $w->attach($_, $j, $j + 1, $i, $i + 1,
			     ['expand', 'fill'], ref($_) eq 'Gtk2::ScrolledWindow' || $_->get_data('must_grow') ? ['expand', 'fill'] : [], 0, 0);
		$_->show;
	    }
	} @$l;
    } @l;
    $w->set_col_spacings($options->{col_spacings} || 0);
    $w->set_row_spacings($options->{row_spacings} || 0);
    $w
}

sub create_okcancel {
    my ($w, $o_ok, $o_cancel, $o_spread, @other) = @_;
    my $wizard_buttons = $::isWizard && !$w->{pop_it};
    my $cancel = defined $o_cancel || defined $o_ok ? $o_cancel : $wizard_buttons ? 'gtk-go-back' : 'gtk-cancel';
    my $ok = defined $o_ok ? $o_ok : $wizard_buttons ? ($::Wizard_finished ? N("Finish") : 'gtk-go-forward') : 'gtk-ok';
    my $b1 = gtksignal_connect($w->{ok} = Gtk2::Button->new_from_stock($ok), clicked => $w->{ok_clicked} || sub { $w->{retval} = 1; Gtk2->main_quit });
    my $b2 = $cancel && gtksignal_connect($w->{cancel} = Gtk2::Button->new_from_stock($cancel), clicked => $w->{cancel_clicked} || sub { log::l("default cancel_clicked"); undef $w->{retval}; Gtk2->main_quit });
    gtksignal_connect($w->{wizcancel} = Gtk2::Button->new_from_stock('gtk-cancel'), clicked => sub { die 'wizcancel' }) if $wizard_buttons && !$::isInstall;
    my @l = grep { $_ } $wizard_buttons ? (if_(!$::isInstall, $w->{wizcancel}), 
                                           if_(!$::Wizard_no_previous, $b2), $b1) : ($b2, $b1);
    my @l2 = map { gtksignal_connect(Gtk2::Button->new_from_stock($_->[0]), clicked => $_->[1]) } grep {  $_->[2] } @other;
    my @r2 = map { gtksignal_connect(Gtk2::Button->new_from_stock($_->[0]), clicked => $_->[1]) } grep { !$_->[2] } @other;

    my $box = create_hbox($o_spread || "edge");
    
    $box->pack_start($_, 0, 0, 1) foreach @l2;
    $box->pack_end($_, 0, 0, 1) foreach @r2, @l;
    foreach (@l2, @r2, @l) {
	$_->show;
	$_->can_default($wizard_buttons);
    }
    $box;
}

sub _setup_paned {
    my ($paned, $child1, $child2, %options) = @_;
    foreach ([ 'resize1', 0 ], [ 'shrink1', 1 ], [ 'resize2', 1 ], [ 'shrink2', 1 ]) {
        $options{$_->[0]} = $_->[1] unless defined($options{$_->[0]});
    }
    $paned->pack1(gtkshow($child1), $options{resize1}, $options{shrink1});
    $paned->pack2(gtkshow($child2), $options{resize2}, $options{shrink2});
    gtkshow($paned);
}

sub create_vpaned {
    _setup_paned(Gtk2::VPaned->new, @_);
}

sub create_hpaned {
    _setup_paned(Gtk2::HPaned->new, @_);
}


# -=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---=-=---
#                 helpers
#
# Functions that do typical operations on widgets, that you may need in
# several places of your programs.

sub _find_imgfile {
    my ($f, @extensions) = shift;
    @extensions or @extensions = qw(.png .xpm);
    if ($f !~ m|^/|) {
	foreach my $path (icon_paths()) {
	    -e "$path/$f$_" and $f = "$path/$f$_" foreach '', @extensions;
	}
    }
    return $f;
}

# use it if you want to display an icon/image in your app
sub gtkcreate_img {
    return Gtk2::Image->new_from_file(_find_imgfile(@_));
}

# use it if you want to draw an image onto a drawingarea
sub gtkcreate_pixbuf {
    return Gtk2::Gdk::Pixbuf->new_from_file(_find_imgfile(@_));
}

sub gtktext_append { gtktext_insert(@_, append => 1) }

# choose one of the two styles:
# - gtktext_insert($textview, "My text..");
# - gtktext_insert($textview, [ [ 'first text',  { 'foreground' => 'blue', 'background' => 'green', ... } ],
#			        [ 'second text' ],
#		                [ 'third', { 'font' => 'Serif 15', ... } ],
#                               ... ]);
sub gtktext_insert {
    my ($textview, $t, %opts) = @_;
    my $buffer = $textview->get_buffer;
    if (ref($t) eq 'ARRAY') {
        $opts{append} or $buffer->set_text('');
        foreach my $token (@$t) {
            my $iter1 = $buffer->get_end_iter;
            my $c = $buffer->get_char_count;
            if ($token->[0] =~ /^Gtk2::Gdk::Pixbuf/) {
                $buffer->insert_pixbuf($iter1, $token->[0]);
                next;
            }
            $buffer->insert($iter1, $token->[0]);
            if ($token->[1]) {
                my $tag = $buffer->create_tag(rand());
                $tag->set(%{$token->[1]});
                $buffer->apply_tag($tag, $iter1 = $buffer->get_iter_at_offset($c), $buffer->get_end_iter);
            }
        }
    } else {
        $buffer->set_text($t);
    }
    #- the following line is needed to move the cursor to the beginning, so that if the
    #- textview has a scrollbar, it won't scroll to the bottom when focusing (#3633)
    $buffer->place_cursor($buffer->get_start_iter);
    $textview->set_wrap_mode($opts{wrap_mode} || 'word');
    $textview->set_editable($opts{editable} || 0);
    $textview->set_cursor_visible($opts{visible} || 0);
    $textview;
}

# extracts interesting font metrics for a given widget
sub gtkfontinfo {
    my ($widget) = @_;
    my $context = $widget->get_pango_context;
    my $metrics = $context->get_metrics($context->get_font_description, $context->get_language);
    my %fontinfo;
    foreach (qw(ascent descent approximate_char_width approximate_digit_width)) {
	no strict;
	my $func = "get_$_";
	$fontinfo{$_} = Gtk2::Pango->pixels($metrics->$func);
    }
    %fontinfo;
}

sub gtkmodify_font {
    my ($w, $arg) = @_;
    $w->modify_font(ref($arg) ? $arg : Gtk2::Pango::FontDescription->from_string($arg));
    $w;
}

sub gtkset_property {
    my ($w, $property, $value) = @_;
    $w->set_property($property, $value);
    $w;
}

sub set_back_pixbuf {
    my ($widget, $pixbuf) = @_;
    my $window = $widget->window;
    my ($width, $height) = ($pixbuf->get_width, $pixbuf->get_height);
    my $pixmap = Gtk2::Gdk::Pixmap->new($window, $width, $height, $window->get_depth);
    $pixbuf->render_to_drawable($pixmap, $widget->style->fg_gc('normal'), 0, 0, 0, 0, $width, $height, 'none', 0, 0);
    $window->set_back_pixmap($pixmap, 0);
}

sub fill_tiled_coords {
    my ($widget, $pixbuf, $x_back, $y_back, $width, $height) = @_;
    my ($x2, $y2) = (0, 0);
    while (1) {
	$x2 = 0;
	while (1) {
	    $pixbuf->render_to_drawable($widget->window, $widget->style->fg_gc('normal'),
					0, 0, $x2, $y2, $x_back, $y_back, 'none', 0, 0);
	    $x2 += $x_back;
	    $x2 >= $width and last;
	}
	$y2 += $y_back;
	$y2 >= $height and last;
    }
}

sub fill_tiled {
    my ($widget, $pixbuf) = @_;
    my ($window_width, $window_height) = $widget->window->get_size;
    fill_tiled_coords($widget, $pixbuf, $pixbuf->get_width, $pixbuf->get_height, $window_width, $window_height);
}

sub add2notebook {
    my ($n, $title, $book) = @_;
    $n->append_page($book, gtkshow(Gtk2::Label->new($title)));
    $book->show;
}

sub string_size {
    my ($widget, $text) = @_;
    my $layout = $widget->create_pango_layout($text);
    my @size = $layout->get_pixel_size;
    @size;
}

sub string_width {
    my ($widget, $text) = @_;
    my ($width, undef) = string_size($widget, $text);
    $width;
}

sub string_height {
    my ($widget, $text) = @_;
    my (undef, $height) = string_size($widget, $text);
    $height;
}

sub get_text_coord {
    my ($text, $widget4style, $max_width, $max_height, $can_be_greater, $can_be_smaller, $centeredx, $centeredy, $o_wrap_char) = @_;
    my $wrap_char = $o_wrap_char || ' ';
    my $idx = 0;
    my $real_width = 0;
    my $real_height = 0;
    my @lines;
    my @widths;
    my @heights;
    $heights[0] = 0;
    my $max_width2 = $max_width;
    my $height = 0;
    my $width = 0;
    my $flag = 1;
    my @t = split($wrap_char, $text);
    my @t2;
    if ($::isInstall && $::o->{locale}{lang} =~ /ja|zh/) {
	@t = map { $_ . $wrap_char } @t;
	$wrap_char = '';
	foreach (@t) {
	    my @c = split('');
	    my $i = 0;
	    my $el = '';
	    while (1) {
		$i >= @c and last;
		$el .= $c[$i];
		if (ord($c[$i]) >= 128) { $el .= $c[$i+1]; $i++; push @t2, $el; $el = '' }
		$i++;
	    }
	    $el ne '' and push @t2, $el;
	}
    } else {
	@t2 = @t;
    }
    foreach (@t2) {
	my $l = string_width($widget4style, $_ . (!$flag ? $wrap_char : ''));
	if ($width + $l > $max_width2 && !$flag) {
	    $flag = 1;
	    $height += string_height($widget4style, $lines[$idx]) + 1;
	    $heights[$idx+1] = $height;
	    $widths[$idx] = $centeredx && !$can_be_smaller ? (max($max_width2-$width, 0))/2 : 0;
	    $width = 0;
	    $idx++;
	}
	$lines[$idx] = $flag ? $_ : $lines[$idx] . $wrap_char . $_;
	$width += $l;
	$flag = 0;


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