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Diffstat (limited to 'Master/tlpkg/tlperl/lib/Tk/demos/widget_lib/texts.pl')
-rw-r--r-- | Master/tlpkg/tlperl/lib/Tk/demos/widget_lib/texts.pl | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl/lib/Tk/demos/widget_lib/texts.pl b/Master/tlpkg/tlperl/lib/Tk/demos/widget_lib/texts.pl new file mode 100644 index 00000000000..3a2dc0115d8 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/Tk/demos/widget_lib/texts.pl @@ -0,0 +1,71 @@ +# texts.pl + +use vars qw/$TOP/; + +sub texts { + + # Create a top-level window that displays a basic text widget. + + my ($demo) = @_; + $TOP = $MW->WidgetDemo( + -name => $demo, + -text => '', + -title => 'Text Demonstration - Basic Facilities', + -iconname => 'texts', + ); + + my $t = $TOP->Scrolled(qw/Text -relief sunken -borderwidth 2 -setgrid true + -height 30 -scrollbars e/); + $t->pack(qw/-expand yes -fill both/); + + $t->insert('0.0', 'This window is a text widget. It displays one or more lines of text +and allows you to edit the text. Here is a summary of the things you +can do to a text widget: + +1. Scrolling. Use the scrollbar to adjust the view in the text window. + +2. Scanning. Press mouse button 2 in the text window and drag up or down. +This will drag the text at high speed to allow you to scan its contents. + +3. Insert text. Press mouse button 1 to set the insertion cursor, then +type text. What you type will be added to the widget. + +4. Select. Press mouse button 1 and drag to select a range of characters. +Once you\'ve released the button, you can adjust the selection by pressing +button 1 with the shift key down. This will reset the end of the +selection nearest the mouse cursor and you can drag that end of the +selection by dragging the mouse before releasing the mouse button. +You can double-click to select whole words or triple-click to select +whole lines. + +5. Delete and replace. To delete text, select the characters you\'d like +to delete and type Backspace or Delete. Alternatively, you can type new +text, in which case it will replace the selected text. + +6. Copy the selection. To copy the selection into this window, select +what you want to copy (either here or in another application), then +click button 2 to copy the selection to the point of the mouse cursor. + +7. Edit. Text widgets support the standard Motif editing characters +plus many Emacs editing characters. Backspace and Control-h erase the +character to the left of the insertion cursor. Delete and Control-d +erase the character to the right of the insertion cursor. Meta-backspace +deletes the word to the left of the insertion cursor, and Meta-d deletes +the word to the right of the insertion cursor. Control-k deletes from +the insertion cursor to the end of the line, or it deletes the newline +character if that is the only thing left on the line. Control-o opens +a new line by inserting a newline character to the right of the insertion +cursor. Control-t transposes the two characters on either side of the +insertion cursor. + +7. Resize the window. This widget has been configured with the "setGrid" +option on, so that if you resize the window it will always resize to an +even number of characters high and wide. Also, if you make the window +narrow you can see that long lines automatically wrap around onto +additional lines so that all the information is always visible.'); + + $t->mark(qw/set insert 0.0/); + +} # end texts + +1; |