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2
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11
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11
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31721
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use Tcl::pTk ( qw/ MainLoop DoOneEvent tkinit update Ev Exists /); # Don't import MainLoop, we create our own later
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0
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3
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4
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package Tcl::pTk::TkHijack;
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6
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our ($VERSION) = ('0.92');
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7
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8
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=head1 NAME
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10
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Tcl::pTk::TkHijack - Run Existing Perl/tk Scripts with Tcl::pTk
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12
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=head1 SYNOPSIS
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15
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# Run a existing perl/tk script 'tkscript.pl' with Tcl::pTk
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perl -MTcl::pTk::TkHijack tkscript.pl
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# Alternatively, you can just put 'use Tcl::pTk::TkHijack' at the
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# top of the 'tkscript.pl' file and just run it like normal
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=head1 DESCRIPTION
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I is an experimental module that makes existing perl/tk use L to run.
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It 'Hijacks' any 'use Tk' and related calls in a perl/tk script to use Tcl::pTk.
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26
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=head1 How It Works
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A sub ref (tkHijack) is pushed onto perl's global @INC array. This sub intercepts any 'use Tk'
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or related calls and substitutes them with their Tcl::pTk equivalents. Additionally, some package aliases are setup between the Tk and the Tcl::pTk namespace
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31
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=head1 Examples
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33
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There are some examples of using TkHijack with a simple perl/tk script, and a perl/tk mega-widget. See
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C and C in the source distribution.
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36
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=head1 LIMITATIONS
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38
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=over 1
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40
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=item *
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42
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XEvent calls are not translated, because there is no equivalent in Tcl::pTk (XEvent was a perl/tk specific addition to Tk, and doesn't exists in Tcl/Tk)
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44
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=item *
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46
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Perl/Tk widgets that use XS code can't be handled with this package.
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47
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48
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=back
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50
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=cut
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51
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52
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our($debug, $translateList, $packageAliases, $aliasesMade);
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53
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54
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unshift @INC, \&TkHijack;
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55
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56
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57
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######### Package Globals ####
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$debug = 1;
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59
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60
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61
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# Mapping of Tk Packages that have equivalence in Tcl::pTk.
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62
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# If a Tk package is mapped to undef, then that means it's functionality is already included
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63
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# in the main Tcl::pTk package.
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64
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# This list is used for mapping "use" statements, for example if
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65
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# "use Tk::Tree" is encountered, the file "Tcl/pTk/Tree.pm" is loaded instead
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66
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$translateList = {
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67
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'Tk.pm' => '',
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68
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'Tk/Tree.pm' => 'Tcl/pTk/Tree.pm',
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69
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'Tk/Balloon.pm' => '',
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70
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'Tk/Bitmap.pm' => '',
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71
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'Tk/BrowseEntry.pm' => 'Tcl/pTk/BrowseEntry.pm',
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72
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'Tk/Canvas.pm' => 'Tcl/pTk/Canvas.pm',
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73
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'Tk/Clipboard.pm' => 'Tcl/pTk/Clipboard.pm',
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74
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'Tk/Dialog.pm' => '',
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75
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'Tk/DialogBox.pm' => '',
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76
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'Tk/DirTree.pm' => 'Tcl/pTk/DirTree.pm',
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77
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'Tk/DragDrop.pm' => 'Tcl/pTk/DragDrop.pm',
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78
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'Tk/DropSite.pm' => 'Tcl/pTk/DropSite.pm',
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79
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'Tk/Frame.pm' => '',
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80
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'Tk/Font.pm' => '',
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81
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'Tk/HList.pm' => 'Tcl/pTk/HList.pm',
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82
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'Tk/Image.pm' => 'Tcl/pTk/Image.pm',
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83
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'Tk/ItemStyle.pm' => 'Tcl/pTk/ItemStyle.pm',
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84
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'Tk/LabEntry.pm' => '',
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85
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'Tk/Listbox.pm' => 'Tcl/pTk/Listbox.pm',
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86
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'Tk/MainWindow.pm' => 'Tcl/pTk/MainWindow.pm',
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87
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'Tk/Photo.pm' => 'Tcl/pTk/Photo.pm',
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88
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'Tk/ProgressBar.pm' => 'Tcl/pTk/ProgressBar.pm',
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89
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'Tk/ROText.pm' => 'Tcl/pTk/ROText.pm',
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90
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'Tk/Table.pm' => 'Tcl/pTk/Table.pm',
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91
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'Tk/Text.pm' => 'Tcl/pTk/Text.pm',
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92
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'Tk/TextEdit.pm' => 'Tcl/pTk/TextEdit.pm',
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93
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'Tk/TextUndo.pm' => 'Tcl/pTk/TextUndo.pm',
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94
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'Tk/Toplevel.pm' => '',
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95
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'Tk/Tiler.pm' => 'Tcl/pTk/Tiler.pm',
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96
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'Tk/widgets.pm' => 'Tcl/pTk/widgets.pm',
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97
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'Tk/LabFrame.pm' => '',
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98
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'Tk/Submethods.pm' => 'Tcl/pTk/Submethods.pm',
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99
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'Tk/Menu.pm' => '',
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100
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'Tk/Wm.pm' => 'Tcl/pTk/Wm.pm',
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101
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'Tk/Widget.pm' => '',
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102
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'Tk/FileSelect.pm' => '',
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103
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'Tk/After.pm' => '',
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104
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'Tk/Derived.pm' => '',
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105
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'Tk/NoteBook.pm' => '',
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106
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'Tk/NBFrame.pm' => '',
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107
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'Tk/Pane.pm' => 'Tcl/pTk/Pane.pm',
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108
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'Tk/Adjuster.pm' => 'Tcl/pTk/Adjuster.pm',
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109
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'Tk/TableMatrix.pm' => 'Tcl/pTk/TableMatrix.pm',
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110
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'Tk/TableMatrix/Spreadsheet.pm' => 'Tcl/pTk/TableMatrix/Spreadsheet.pm',
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111
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'Tk/TableMatrix/SpreadsheetHideRows.pm' => 'Tcl/pTk/TableMatrix/SpreadsheetHideRows.pm',
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112
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'Tk/ErrorDialog.pm' => 'Tcl/pTk/ErrorDialog.pm',
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113
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};
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114
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115
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116
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# List of alias that will be created for Tk packages to Tcl::pTk packages
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117
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# This is to make megawidgets created in Tk work. For example,
|
118
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# if a Tk mega widget has the following code:
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119
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# use base(qw/ Tk::Frame /);
|
120
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# Construct Tk::Widget 'SlideSwitch'
|
121
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# The aliases below will essentially translate to code to mean:
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122
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# use base(qw/ Tcl::pTk::Frame /);
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123
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# Construct Tcl::pTk::Widget 'SlideSwitch'
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124
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#
|
125
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$packageAliases = {
|
126
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'Tk::Frame' => 'Tcl::pTk::Frame',
|
127
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'Tk::Toplevel' => 'Tcl::pTk::Toplevel',
|
128
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'Tk::MainWindow' => 'Tcl::pTk::MainWindow',
|
129
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'Tk::Widget'=> 'Tcl::pTk::Widget',
|
130
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'Tk::Derived'=> 'Tcl::pTk::Derived',
|
131
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'Tk::DropSite' => 'Tcl::pTk::DropSite',
|
132
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'Tk::Canvas' => 'Tcl::pTk::Canvas',
|
133
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'Tk::Menu'=> 'Tcl::pTk::Menu',
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134
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'Tk::TextUndo'=> 'Tcl::pTk::TextUndo',
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135
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'Tk::Text'=> 'Tcl::pTk::Text',
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136
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'Tk::Tree'=> 'Tcl::pTk::Tree',
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137
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'Tk::Clipboard'=> 'Tcl::pTk::Clipboard',
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138
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'Tk::Configure'=> 'Tcl::pTk::Configure',
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139
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'Tk::BrowseEntry'=> 'Tcl::pTk::BrowseEntry',
|
140
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'Tk::Callback'=> 'Tcl::pTk::Callback',
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141
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'Tk::TableMatrix'=> 'Tcl::pTk::TableMatrix',
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142
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'Tk::Table'=> 'Tcl::pTk::Table',
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143
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'Tk::TableMatrix::Spreadsheet'=> 'Tcl::pTk::TableMatrix::Spreadsheet',
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144
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'Tk::TableMatrix::SpreadsheetHideRows'=> 'Tcl::pTk::TableMatrix::SpreadsheetHideRows',
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145
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};
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146
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147
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######### End of Package Globals ###########
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148
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# Alias Packages
|
149
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aliasPackages($packageAliases);
|
150
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151
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152
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153
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154
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155
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sub TkHijack {
|
156
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# When placed first on the INC path, this will allow us to hijack
|
157
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# any requests for 'use Tk' and any Tk::* modules and replace them
|
158
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# with our own stuff.
|
159
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my ($coderef, $module) = @_; # $coderef is to myself
|
160
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#print "TkHijack encoutering $module\n";
|
161
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return undef unless $module =~ m!^Tk(/|\.pm$)!;
|
162
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163
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#print "TkHijack $module\n";
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164
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165
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my ($package, $callerfile, $callerline) = caller;
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166
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#print "TkHijack package/callerFile/callerline = $package $callerfile $callerline\n";
|
167
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168
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my $mapped = $translateList->{$module};
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169
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|
170
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if( defined($mapped) && !$mapped){ # Module exists in translateList, but no mapped file
|
171
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my $fakefile;
|
172
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open(my $fh, '<', \$fakefile) || die "oops"; # open a file "in-memory"
|
173
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174
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$module =~ s!/!::!g;
|
175
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$module =~ s/\.pm$//;
|
176
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|
177
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# Make Version if importing Tk (needed for some scripts to work right)
|
178
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my $versionText = "\n";
|
179
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my $requireText = "\n"; # if Tk module, set export of Ev subs
|
180
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|
if( $module eq 'Tk' ){
|
181
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182
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$requireText = "use Exporter 'import';\n";
|
183
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|
|
$requireText .= '@EXPORT_OK = (qw/ Ev catch/);'."\n";
|
184
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|
185
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|
$versionText = '$Tk::VERSION = 805.001;'."\n";
|
186
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|
187
|
|
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|
# Redefine common Tk subs/variables to Tcl::pTk equivalents
|
188
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|
|
no warnings;
|
189
|
|
|
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|
|
|
*Tk::MainLoop = \&Tcl::pTk::MainLoop;
|
190
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|
|
*Tk::findINC = \&Tcl::pTk::findINC;
|
191
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|
*Tk::after = \&Tcl::pTk::after;
|
192
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|
|
*Tk::DoOneEvent = \&Tcl::pTk::DoOneEvent;
|
193
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|
|
*Tk::Ev = \&Tcl::pTk::Ev;
|
194
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|
|
*Tk::Exists = \&Tcl::pTk::Exists;
|
195
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|
|
*Tk::break = \&Tcl::pTk::break;
|
196
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|
|
*Tk::platform = \$Tcl::pTk::platform;
|
197
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*Tk::timeofday = \&Tcl::pTk::timeofday;
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198
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*Tk::fileevent = \&Tcl::pTk::fileevent;
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199
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*Tk::bind = \&Tcl::pTk::Widget::bind;
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200
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*Tk::ACTIVE_BG = \&Tcl::pTk::ACTIVE_BG;
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201
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*Tk::NORMAL_BG = \&Tcl::pTk::NORMAL_BG;
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202
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*Tk::SELECT_BG = \&Tcl::pTk::SELECT_BG;
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203
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204
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205
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}
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206
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|
207
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|
208
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$fakefile = <
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209
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package $module;
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210
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|
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|
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$requireText
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211
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|
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|
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$versionText
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212
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|
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#warn "### $callerfile:$callerline not really loading $module ###" if($Tcl::pTk::TkHijack::debug);
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213
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|
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|
|
|
|
sub foo { 1; }
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214
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|
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|
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|
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1;
|
215
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|
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|
|
|
|
EOS
|
216
|
|
|
|
|
|
|
return $fh;
|
217
|
|
|
|
|
|
|
}
|
218
|
|
|
|
|
|
|
elsif( defined($mapped) ){ # Module exists in translateList with a mapped file
|
219
|
|
|
|
|
|
|
|
220
|
|
|
|
|
|
|
# Turn mapped file into name suitable for a 'use' statement
|
221
|
|
|
|
|
|
|
my $usefile = $mapped;
|
222
|
|
|
|
|
|
|
$usefile =~ s!/!::!g;
|
223
|
|
|
|
|
|
|
$usefile =~ s/\.pm$//;
|
224
|
|
|
|
|
|
|
|
225
|
|
|
|
|
|
|
#warn "### $callerfile:$callerline loading Tcl Tk $usefile to substitute for $module ###" if($Tcl::pTk::TkHijack::debug);
|
226
|
|
|
|
|
|
|
# Turn mapped file into use statement
|
227
|
|
|
|
|
|
|
my $fakefile;
|
228
|
|
|
|
|
|
|
open(my $fh, '<', \$fakefile) || die "oops"; # open a file "in-memory"
|
229
|
|
|
|
|
|
|
$fakefile = <
|
230
|
|
|
|
|
|
|
use $usefile;
|
231
|
|
|
|
|
|
|
1;
|
232
|
|
|
|
|
|
|
EOS
|
233
|
|
|
|
|
|
|
return $fh;
|
234
|
|
|
|
|
|
|
}
|
235
|
|
|
|
|
|
|
else{
|
236
|
|
|
|
|
|
|
#warn("Warning No Tcl::pTk Equivalent to $module from $callerfile line $callerline, loading anyway...\n") if $debug;
|
237
|
|
|
|
|
|
|
}
|
238
|
|
|
|
|
|
|
|
239
|
|
|
|
|
|
|
}
|
240
|
|
|
|
|
|
|
|
241
|
|
|
|
|
|
|
############## Sub To Alias Packages ########
|
242
|
|
|
|
|
|
|
sub aliasPackages{
|
243
|
|
|
|
|
|
|
my $aliases = shift;
|
244
|
|
|
|
|
|
|
my $aliasTo;
|
245
|
|
|
|
|
|
|
foreach my $aliasFrom ( keys %$aliases){
|
246
|
|
|
|
|
|
|
$aliasTo = $packageAliases->{$aliasFrom};
|
247
|
|
|
|
|
|
|
*{$aliasFrom.'::'} = *{$aliasTo.'::'};
|
248
|
|
|
|
|
|
|
}
|
249
|
|
|
|
|
|
|
}
|
250
|
|
|
|
|
|
|
|
251
|
|
|
|
|
|
|
|
252
|
|
|
|
|
|
|
################### MainWindow package #################3
|
253
|
|
|
|
|
|
|
## Created so the lines like the following work
|
254
|
|
|
|
|
|
|
## my $mw = new MainWindow;
|
255
|
|
|
|
|
|
|
package MainWindow;
|
256
|
|
|
|
|
|
|
|
257
|
|
|
|
|
|
|
sub new{
|
258
|
|
|
|
|
|
|
Tcl::pTk::MainWindow();
|
259
|
|
|
|
|
|
|
}
|
260
|
|
|
|
|
|
|
|
261
|
|
|
|
|
|
|
1;
|