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lib/App/MathImage/Tk/Main.pm  view on Meta::CPAN

# Copyright 2011, 2012, 2013 Kevin Ryde

# This file is part of Math-Image.
#
# Math-Image 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, or (at your option) any later
# version.
#
# Math-Image 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 Math-Image.  If not, see <http://www.gnu.org/licenses/>.


package App::MathImage::Tk::Main;
use 5.008;
use strict;
use warnings;
use FindBin;
use List::Util 'max';
use Tk;
use Tk::Balloon;
use Locale::TextDomain 1.19 ('App-MathImage');

use App::MathImage::Generator;
use App::MathImage::Tk::Drawing;
use App::MathImage::Tk::Perl::WidgetBits 'with_underline';

# uncomment this to run the ### lines
# use Smart::Comments;

use base 'Tk::Derived', 'Tk::MainWindow';
Tk::Widget->Construct('AppMathImageTkMain');

our $VERSION = 110;

sub Populate {
  my ($self, $args) = @_;

  # read-only
  $self->ConfigSpecs(-menubar => [ 'PASSIVE',
                                   'AppMathImageTkMain',
                                   'AppMathImageTkMain',
                                   undef ]);
  $self->ConfigSpecs(-toolbar => [ 'PASSIVE',
                                   'AppMathImageTkMain',
                                   'AppMathImageTkMain',
                                   undef ]);
  $self->ConfigSpecs(-drawing => [ 'PASSIVE',
                                   'AppMathImageTkMain',
                                   'AppMathImageTkMain',
                                   undef ]);

  my $balloon = $self->Balloon;

  # cf add-on Tk::ToolBar
  my $toolbar
    = $self->{'Configure'}->{'-toolbar'}
      = $self->Component('Frame','toolbar');

  my $menubar
    = $self->{'Configure'}->{'-menubar'}
      = $self->Component('Frame','menubar',
                         -relief => 'raised', -bd => 2);

  my $gui_options = delete $args->{'-gui_options'};
  my $gen_options = delete $args->{'-gen_options'} || {};
  {
    my %gen_options = %{App::MathImage::Generator->default_options};
    delete $gen_options{'width'};
    delete $gen_options{'height'};
    $gen_options = { %gen_options,
                     %$gen_options };
  }
  ### Main gen_options: $gen_options

  my $drawing
    = $self->{'Configure'}->{'-drawing'}
      = $self->Component
        ('AppMathImageTkDrawing','drawing',
         -background => 'black',
         -foreground => 'white',
         -activebackground => 'black',
         -activeforeground => 'white',
         -disabledforeground => 'white',
         (defined $gen_options->{'width'}
          ? (-width  => $gen_options->{'width'},
             -height => $gen_options->{'height'} || $gen_options->{'width'})
          : ()),
        );
  $drawing->bind('<Enter>',  [\&_do_drawing_motion, Ev('x'), Ev('y')]);
  $drawing->bind('<Motion>', [\&_do_drawing_motion, Ev('x'), Ev('y')]);