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Diffstat (limited to 'Perl/demos/zinc-demos')
-rw-r--r-- | Perl/demos/zinc-demos | 468 |
1 files changed, 468 insertions, 0 deletions
diff --git a/Perl/demos/zinc-demos b/Perl/demos/zinc-demos new file mode 100644 index 0000000..79446c7 --- /dev/null +++ b/Perl/demos/zinc-demos @@ -0,0 +1,468 @@ +#!/usr/bin/perl -w + +eval 'exec /usr/bin/perl -w -S $0 ${1+"$@"}' + if 0; # not running under some shell + +require 5.004; + +use Tk 800.000; +use lib Tk->findINC('demos/widget_lib'); +use Tk::widgets qw/Dialog ErrorDialog ROText/; +use WidgetDemo; +use subs qw/invoke lsearch see_code see_vars show_stat view_widget_code/; +use vars qw/$MW $FONT $WIDTRIB/; +use vars qw/$CODE $CODE_RERUN $CODE_TEXT $VARS $VIEW $VIEW_TEXT/; +use vars qw/$BRAKES $LIGHTS $OIL $SOBER $TRANS $WIPERS/; +use vars qw/$COLOR $FONT_STYLE $POINT_SIZE $DEMO_FILE %DEMO_DESCRIPTION/; +use strict; + + +$MW = Tk::MainWindow->new; +$MW->configure(-menu => my $menubar = $MW->Menu); + +{ + package WidgetWrap; + @WidgetWrap::ISA = qw/Tk::MainWindow/; + + # This magic conspires with widget's AUTOLOAD subroutine to make user + # contributed demonstrations that don't use WidgetDemo embed properly. + # The trick works because widget creates a superclass of Tk::MainWindow + # which invokes WidgetDemo() implicitly. You loose if you bypass the + # inheritance mechanism and call Tk::MainWindow directly. + + sub new { + my ($name) = $::DEMO_FILE =~ m#([^/]+).pl$#; + $::MW->WidgetDemo(-name => $name, -text => $::DEMO_DESCRIPTION{$name}); + } +} + +@MainWindow::ISA = 'WidgetWrap'; + +$MW->title('Widget Demonstration'); +$FONT = '-*-Helvetica-Medium-R-Normal--*-140-*-*-*-*-*-*'; +my $widget_lib = Tk->findINC('demos/widget_lib'); +my $zinc_lib = Tk->findINC('demos/zinc_lib'); +my $wd = "$widget_lib/WidgetDemo.pm"; +$WIDTRIB = Tk->findINC('demos/zinc_contrib_lib'); +unless (Tk::tainting) { + $WIDTRIB = $ENV{WIDTRIB} if defined $ENV{WIDTRIB}; + $WIDTRIB = $ARGV[0] if defined $ARGV[0]; +} + +# The code below creates the main window, consisting of a menu bar +# and a text widget that explains how to use the program, plus lists +# all of the demos as hypertext items. + +my $file = $menubar->cascade(qw/-label File -underline 0 -menuitems/ => + [ + [cascade => '~View', -menuitems => + [ + [command => '~widget', -command => [\&view_widget_code, __FILE__]], + [command => '~WidgetDemo', -command => [\&view_widget_code, $wd]], + ], # end cascade menuitems + ], # end view cascade + '', + [command => '~Quit', -command => [\&exit]], + ]); + +my $help = $menubar->cascade(qw/-label Help -underline 0 -menuitems/ => + [ + [command => '~About'], + ]); + +my $T = $MW->Scrolled('ROText', + -scrollbars => 'e', + -wrap => 'word', + -width => 60, + -height => 30, + -font => $FONT, + -setgrid => 1, +)->grid(qw/-sticky nsew/); +$MW->gridRowconfigure( 0, -weight => 1); # allow expansion in both ... +$MW->gridColumnconfigure(0, -weight => 1); # ... X and Y dimensions + +my $STATUS_VAR; +my $status = $MW->Label(-textvariable => \$STATUS_VAR, qw/-anchor w/); +$status->grid(qw/-sticky ew/); + +# Create a bunch of tags to use in the text widget, such as those for +# section titles and demo descriptions. Also define the bindings for +# tags. + +$T->tagConfigure(qw/title -font -*-Helvetica-Bold-R-Normal--*-180-*-*-*-*-*-*/); +$T->tagConfigure(qw/demo -lmargin1 1c -lmargin2 1c -foreground blue/); + +if ($MW->depth == 1) { + $T->tagConfigure(qw/hot -background black -foreground white/); + $T->tagConfigure(qw/visited -lmargin1 1c -lmargin2 1c -underline 1/); +} else { + $T->tagConfigure(qw/hot -relief raised -borderwidth 1 -foreground red/); + $T->tagConfigure(qw/visited -lmargin1 1c -lmargin2 1c -foreground/ => + '#303080'); +} + +$T->tagBind(qw/demo <ButtonRelease-1>/ => \&invoke); +my $last_line = ''; +$T->tagBind(qw/demo <Enter>/ => [sub { + my($text, $sv) = @_; + my $e = $text->XEvent; + my($x, $y) = ($e->x, $e->y); + $last_line = $text->index("\@$x,$y linestart"); + $text->tagAdd('hot', $last_line, "$last_line lineend"); + $text->configure(qw/-cursor hand2/); + show_stat $sv, $text, $text->index('current'); + }, \$STATUS_VAR] +); +$T->tagBind(qw/demo <Leave>/ => [sub { + my($text, $sv) = @_; + $text->tagRemove(qw/hot 1.0 end/); + $text->configure(qw/-cursor xterm/); + $$sv = ''; + }, \$STATUS_VAR] +); +$T->tagBind(qw/demo <Motion>/ => [sub { + my($text, $sv) = @_; + my $e = $text->XEvent; + my($x, $y) = ($e->x, $e->y); + my $new_line = $text->index("\@$x,$y linestart"); + if ($new_line ne $last_line) { + $text->tagRemove(qw/hot 1.0 end/); + $last_line = $new_line; + $text->tagAdd('hot', $last_line, "$last_line lineend"); + } + show_stat $sv, $text, $text->index('current'); + }, \$STATUS_VAR] +); + +# Create the text for the text widget. + +$T->insert('end', "Zinc perl/Tk Demonstrations\n", 'title'); +$T->insert('end', +"\nThis application provides a front end for several short scripts in perl/Tk that demonstrate what you can do with the Zinc widget. Each of the numbered lines below describes a demonstration; you can click on it to invoke the demonstration. Once the demonstration window appears, you can click the \"See Code\" button to see the Perl/Tk code that created the demonstration.\n"); + +$T->insert('end', "\n", '', "Small applications\n", 'title'); +$T->insert('end', "1. A simple animated application \"the Wheel of Fortune\".\n", [qw/demo demo-wheelOfFortune/]); +$T->insert('end', "2. A simple radar display.\n", [qw/demo demo-simpleradar/]); + + +$T->insert('end', "\n", '', "All Items\n", 'title'); +$T->insert('end', "1. Exemples of all items.\n", [qw/demo demo-items/]); +$T->insert('end', "2. All items options (and their types).\n", [qw/demo demo-all_options/]); +$T->insert('end', "3. Examples of line style and line termination.\n", [qw/demo demo-lines/]); +$T->insert('end', "4. Curves with multiple contours.\n", [qw/demo demo-contours/]); +$T->insert('end', "5. Use of mapinfos.\n", [qw/demo demo-mapinfo/]); + + +$T->insert('end', "\n", '', "Groups, Priority and Clipping\n", 'title'); +$T->insert('end', "1. Groups and Priorities.\n", [qw/demo demo-groups_priority/]); +$T->insert('end', "2. Clipping examples (with simple or multiple contours).\n", [qw/demo demo-clipping/]); +$T->insert('end', "3. \"Windows\" with four glasses using curve with multiple contours.\n", [qw/demo demo-window-contours/]); +$T->insert('end', "4. A counter quite impossible to do without clipping (needs openGL).\n", [qw/demo demo-counter/]); + +$T->insert('end', "\n", '', "Interactions\n", 'title'); +$T->insert('end', "1. Simple interaction on a track.\n", [qw/demo demo-simple_interaction_track/]); + + +$T->insert('end', "\n", '', "Transformation\n", 'title'); +$T->insert('end', "1. Translating.\n", [qw/demo demo-translation/]); +$T->insert('end', "2. Rotating.\n", [qw/demo demo-rotation/]); +$T->insert('end', "3. Zooming.\n", [qw/demo demo-zoom/]); + +$T->insert('end', "\n", '', "Use of openGL\n", 'title'); +$T->insert('end', "1. The tkZinc Logo (needs openGL).\n", [qw/demo demo-tkZincLogo/]); +$T->insert('end', "2. Axial color variation on the X axis (needs openGL).\n", [qw/demo demo-color-x/]); +$T->insert('end', "3. Axial color variation on the Y axis (needs openGL).\n", [qw/demo demo-color-y/]); +$T->insert('end', "4. Circular color variation (needs openGL).\n", [qw/demo demo-color-circular/]); +$T->insert('end', "5. The triangles item (needs openGL).\n", [qw/demo demo-triangles/]); + + + +$T->insert('end', "\n", '', "User Contributed Demonstrations\n", 'title'); +opendir(C, $WIDTRIB) or warn "Cannot open $WIDTRIB: $!"; +my(@dirent) = grep /^.+\.pl$/, sort(readdir C); +closedir C; +unshift @dirent, 'TEMPLATE.pl'; # I want it first +my $i = 0; +while ($_ = shift @dirent) { + next if /TEMPLATE\.pl/ and $i != 0; + unless (open(C, "$WIDTRIB/$_")) { + warn "Cannot open $_: $!" unless /TEMPLATE\.pl/; + next; + } + my($name) = /^(.*)\.pl$/; + $_ = <C>; + my($title) = /^#\s*(.*)$/; + $DEMO_DESCRIPTION{$name} = $title; + close C; + $T->insert('end', ++$i . ". $title\n", ['demo', "demo-$name"]); +} + +# Create all the dialogs required by this demonstration. + +my $DIALOG_ABOUT = $MW->Dialog( + -title => 'About widget', + -bitmap => 'info', + -default_button => 'OK', + -buttons => ['OK'], + -text => " widget\n\nPerl Version $]" . + "\nTk Version $Tk::VERSION\n\n 2000/07/07", +); +$help->cget(-menu)->entryconfigure('About', + -command => [$DIALOG_ABOUT => 'Show'], +); + +my $DIALOG_ICON = $MW->Dialog( + -title => 'Bitmap Menu Entry', + -bitmap => undef, + -default_button => 'OK', + -buttons => ['OK'], + -text => 'The menu entry you invoked displays a bitmap rather than a text string. Other than this, it is just like any other menu entry.', +); +$DIALOG_ICON->configure(-bitmap => undef); # keep -w from complaining + +MainLoop; + +sub AUTOLOAD { + + # This routine handles the loading of most demo methods. + + my($demo) = @_; + + $T->Busy; + { + $DEMO_FILE = "$WIDTRIB/${demo}.pl" if -f "$WIDTRIB/${demo}.pl"; + $DEMO_FILE = "$zinc_lib/${demo}.pl" if -f "$zinc_lib/${demo}.pl"; + do $DEMO_FILE; + warn $@ if $@; + } + $T->Unbusy; + goto &$::AUTOLOAD if defined &$::AUTOLOAD; + +} # end AUTOLOAD + +sub invoke { + + # This procedure is called when the user clicks on a demo description. + + my($text) = @_; + + my $index = $text->index('current'); + my @tags = $T->tagNames($index); + my $i = lsearch('demo\-.*', @tags); + return if $i < 0; + my($demo) = $tags[$i] =~ /demo-(.*)/; + $T->tagAdd('visited', "$index linestart", "$index lineend"); + { + no strict 'refs'; + &$demo($demo); + } + +} # end invoke + +sub lsearch { + + # Search the list using the supplied regular expression and return it's + # ordinal, or -1 if not found. + + my($regexp, @list) = @_; + my($i); + + for ($i=0; $i<=$#list; $i++) { + return $i if $list[$i] =~ /$regexp/; + } + return -1; + +} # end lsearch + +sub see_code { + + # This procedure creates a toplevel window that displays the code for + # a demonstration and allows it to be edited and reinvoked. + + my($demo) = @_; + + my $file = "${demo}.pl"; + if (not Exists $CODE) { + $CODE = $MW->Toplevel; + my $code_buttons = $CODE->Frame; + $code_buttons->pack(qw/-side bottom -fill x/); + my $code_buttons_dismiss = $code_buttons->Button( + -text => 'Dismiss', + -command => [$CODE => 'withdraw'], + ); + $CODE_RERUN = $code_buttons->Button(-text => 'Rerun Demo'); + $CODE_TEXT = $CODE->Scrolled('Text', + qw/-scrollbars e -height 40 -setgrid 1/); + $code_buttons_dismiss->pack(qw/-side left -expand 1/); + $CODE_RERUN->pack(qw/-side left -expand 1/); + $CODE_TEXT->pack(qw/-side left -expand 1 -fill both/); + } else { + $CODE->deiconify; + $CODE->raise; + } + $CODE_RERUN->configure(-command => sub { + eval $CODE_TEXT->get(qw/1.0 end/); + { + no strict 'refs'; + &$demo($demo); + } + }); + $CODE->iconname($file); + $file = "$WIDTRIB/${demo}.pl" if -f "$WIDTRIB/${demo}.pl"; + $file = "$zinc_lib/${demo}.pl" if -f "$zinc_lib/${demo}.pl"; + $CODE->title("Demo code: $file"); + $CODE_TEXT->delete(qw/1.0 end/); + open(CODE, "<$file") or warn "Cannot open demo file $file: $!"; + { + local $/ = undef; + $CODE_TEXT->insert('1.0', <CODE>); + } + close CODE; + $CODE_TEXT->markSet(qw/insert 1.0/); + +} # end see_code + +sub see_vars { + + # Create a top-level window that displays a bunch of global variable values + # and keeps the display up-to-date even when the variables change value. + # $args is a pointer to a list of list of 2: + # + # ["variable description", \$VAR] + # + # The old trick of passing a string to serve as the description and a soft + # reference to the variable no longer works with lexicals and use strict. + + my($parent, $args) = @_; + + $VARS->destroy if Exists($VARS); + $VARS = $parent->Toplevel; + $VARS->geometry('+300+300'); + $VARS->title('Variable Values'); + $VARS->iconname('Variables'); + + my $title = $VARS->Label( + -text => 'Variable Values:', + -width => 20, + -anchor => 'center', + -font => '-*-helvetica-medium-r-normal--*-180-*-*-*-*-*-*', + ); + $title->pack(qw/-side top -fill x/); + my($label, $var); + foreach my $i (@$args) { + ($label, $var) = @$i; + my $wf = $VARS->Frame->pack(qw/-anchor w/); + $wf->Label(-text => "$label: ")->pack(qw/-side left/); + $wf->Label(-textvariable => $var)->pack(qw/-side left/); + } + $VARS->Button(-text => 'OK', -command => [$VARS => 'destroy'])-> + pack(qw/-side bottom -pady 2/); + +} # end see_vars + +sub show_stat { + + # Display name of current demonstration. $sv is a reference to the + # status Label -textvariable, $text is the Text widget reference and + # $index is the demonstration index in the Text widget. + + my($sv, $text, $index) = @_; + + my @tags = $text->tagNames($index); + my $i = lsearch('demo\-.*', @tags); + return if $i < 0; + my($demo) = $tags[$i] =~ /demo-(.*)/; + $$sv = "Click Button-1 to run the \"$demo\" demonstration."; + +} # end show_stat + +sub view_widget_code { + + # Expose a file's innards to the world too, but only for viewing. + + my($widget) = @_; + + if (not Exists $VIEW) { + $VIEW = $MW->Toplevel; + $VIEW->iconname('widget'); + my $view_buttons = $VIEW->Frame; + $view_buttons->pack(qw/-side bottom -expand 1 -fill x/); + my $view_buttons_dismiss = $view_buttons->Button( + -text => 'Dismiss', + -command => [$VIEW => 'withdraw'], + ); + $view_buttons_dismiss->pack(qw/-side left -expand 1/); + $VIEW_TEXT = $VIEW->Scrolled('Text', + qw/-scrollbars e -height 40 -setgrid 1/); + $VIEW_TEXT->pack(qw/-side left -expand 1 -fill both/); + } else { + $VIEW->deiconify; + $VIEW->raise; + } + $VIEW->title("Demo code: $widget"); + $VIEW_TEXT->configure(qw/-state normal/); + $VIEW_TEXT->delete(qw/1.0 end/); + open(VIEW, "<$widget") or warn "Cannot open demo file $widget: $!"; + { + local $/ = undef; + $VIEW_TEXT->insert('1.0', <VIEW>); + } + close VIEW; + $VIEW_TEXT->markSet(qw/insert 1.0/); + $VIEW_TEXT->configure(qw/-state disabled/); + +} # end view_widget_code + +__END__ + +=head1 NAME + +zinc-demos - Demonstration of TkZinc widget functionnality + +=head1 SYNOPSYS + + zinc-demos [ directory ] + +=head1 DESCRIPTION + +This script demonstrates the various functions offered by Tk Zinc widget. +This file only contains code to +generate the main window for the application, which invokes individual +demonstrations. The code for the actual demonstrations is contained in +separate ".pl" files in the "zinc_lib" directory, which are autoloaded +by this script as needed. + +widget looks in the directory specified on the command line to load user +contributed demonstrations. If no directory name is specified when widget is +invoked and the environment variable WIDTRIB is defined then demonstrations +are loaded from the WIDTRIB directory. If WIDTRIB is undefined then widget +defaults to the released user contributed directory, "zinc_contrib_lib". + +=head2 History + + # + # Stephen O. Lidie, LUCC, 96/03/11. lusol@Lehigh.EDU + # Stephen O. Lidie, LUCC, 97/01/01. lusol@Lehigh.EDU + # Stephen O. Lidie, LUCC, 97/02/11. lusol@Lehigh.EDU + # Stephen O. Lidie, LUCC, 97/06/07. lusol@Lehigh.EDU + # Update for Tk402.00x. Total revamp: WidgetDemo, Scrolled, released + # composites, -menuitems, qw//, etcetera. Perl 5.004 required. + # Stephen O. Lidie, LUCC, 98/03/10. lusol@Lehigh.EDU + # Update for Tk8. + # Stephen O. Lidie, LUCC, 98/06/26. Stephen.O.Lidie@Lehigh.EDU + # Add Common Dialogs for Tk800.007. + # Stephen.O.Lidie@Lehigh.EDU, 1999/11/29, Lehigh University. + # Demo some "dash patch" changes. + # Stephen.O.Lidie@Lehigh.EDU, 2000/01/11, Lehigh University. + # Update menubar to Tk 8, fix color palette Menubutton demo. + # Stephen.O.Lidie@Lehigh.EDU, 2000/07/06, Lehigh University. + # Remove inswt() from widget and styles.pl to show the proper Perl/Tk + # idiom for inserting Text tags. Various and sundry cleanups. + # Christophe Mertz <mertz@cena.fr>, 2002/03/06, CENA fr + # adaptation for zinc demos purposes. + +=head1 AUTHOR + +Steve Lidie <Stephen.O.Lidie@Lehigh.EDU> and slight adaptation by Christophe Mertz <mertz@cena.fr> + +=cut |