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#!/usr/bin/perl
# $Id: zoom.pl 1420 2004-04-30 11:35:18Z lecoanet $
# This simple demo has been developped by C. Schlienger <celine@intuilab.com>
use vars qw( $VERSION );
($VERSION) = sprintf("%d.%02d", q$Revision: 1420 $ =~ /(\d+)\.(\d+)/);
use Tk;
use Tk::Zinc;
use strict;
my $defaultfont = '-adobe-helvetica-bold-r-normal--*-120-*-*-*-*-*-*';
my $mw = MainWindow->new();
###########################################
# Text zone
###########################################
my $text = $mw->Text(-relief => 'sunken', -borderwidth => 2, -height => 4);
$text->pack(qw/-expand yes -fill both/);
$text->insert('0.0',
'This toy-appli shows zoom actions on waypoint and curve items.
The following operations are possible:
Click "-" to zoom out
Click "+" to zoom in ' );
###########################################
# Zinc
###########################################
my $zinc_width=600;
my $zinc_height=500;
my $zinc = $mw->Zinc(-width => $zinc_width, -height => $zinc_height,
-font => "10x20",
-borderwidth => 3, -relief => 'sunken',
)->pack;
###########################################
# Waypoints and sector
###########################################
my $wp_group = $zinc->add('group', 1, -visible => 1);
my $p1=[200, 100];
my $wp1 = $zinc->add('waypoint',$wp_group, 1,
-position => $p1,
-connectioncolor => 'green',
-symbolcolor => 'blue',
-labelformat => 'x20x18+0+0',
-leaderwidth=>'0',
-labeldx=>'-20'
);
$zinc->itemconfigure($wp1, 0,
-text => "DO",
);
my $p2=[300, 150];
my $wp2 = $zinc->add('waypoint',$wp_group, 1,
-position => $p2,
-connecteditem => $wp1,
-connectioncolor => 'blue',
-symbolcolor => 'blue',
-labelformat => 'x20x18+0+0',
-leaderwidth=>'0',
-labeldx=>'-20',
);
$zinc->itemconfigure($wp2, 0,
-text => "RE",
);
my $p3=[400, 50];
my $wp3 = $zinc->add('waypoint', $wp_group, 2,
-position => $p3,
-connecteditem => $wp2,
-connectioncolor => 'blue',
-symbolcolor => 'blue',
-labelformat => 'x20x18+0+0',
-leaderwidth=>'0',
-labeldx=>'20',
-labeldy=>'+10'
);
$zinc->itemconfigure($wp3, 0,
-text => "MI",
);
my $p4=[350, 450];
my $wp4 = $zinc->add('waypoint', $wp_group, 2,
-position => $p4,
-connecteditem => $wp2,
-connectioncolor => 'blue',
-symbolcolor => 'blue',
-labelformat => 'x20x18+0+0',
-leaderwidth=>'0',
-labeldy=>'-15'
);
$zinc->itemconfigure($wp4, 0,
-text => "FA",
);
my $p5=[300, 250];
my $wp5 = $zinc->add('waypoint', $wp_group, 2,
-position => $p5,
-connectioncolor => 'blue',
-symbolcolor => 'blue',
-labelformat => 'x20x18+0+0',
-leaderwidth=>'0',
-labeldy=>'-15'
);
$zinc->itemconfigure($wp5, 0,
-text => "SOL",
);
my $p6=[170, 240];
my $wp6 = $zinc->add('waypoint', $wp_group, 2,
-position => $p6,
-connecteditem => $wp5,
-connectioncolor => 'blue',
-symbolcolor => 'blue',
-labelformat => 'x20x18+0+0',
-leaderwidth=>'0',
-labeldx=>'-20'
);
$zinc->itemconfigure($wp6, 0,
-text => "LA",
);
my $p7=[550, 200];
my $wp7 = $zinc->add('waypoint', $wp_group, 2,
-position => $p7,
-connecteditem => $wp5,
-connectioncolor => 'blue',
-symbolcolor => 'blue',
-labelformat => 'x20x18+0+0',
-leaderwidth=>'0',
-labeldx=>'20'
);
$zinc->itemconfigure($wp7, 0,
-text => "SI",
);
my $sector = $zinc ->add('curve',$wp_group,[300,0,400,50,500,100,550,200,550,400,350,450,170,240,200,100,300,0]);
###################################################
# control panel
###################################################
my $rc = $mw->Frame()->pack();
#the reference of the scale function is top-left corner of the zinc object
#so we first translate the group to zoom in order to put its center on top-left corner
#change the scale of the group
#translate the group to put it back at the center of the zinc object
my $minus=$rc->Button(-width => 2,
-height => 2,
-text => '-',
-command=>sub{
$zinc->translate($wp_group,-$zinc_width/2,-$zinc_height/2);
$zinc->scale($wp_group,0.8,0.8);
$zinc->translate($wp_group, $zinc_width/2,$zinc_height/2);
})->pack(-side=>'left');
my $plus=$rc->Button(-width => 2,
-height => 2,
-text => '+',
-command=>sub{
$zinc->translate($wp_group, -$zinc_width/2,-$zinc_height/2);
$zinc->scale($wp_group,1.2,1.2);
$zinc->translate($wp_group,$zinc_width/2,$zinc_height/2);
})->pack(-side => 'right');
MainLoop;
|
