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Prima::Label(3) |
User Contributed Perl Documentation |
Prima::Label(3) |
Prima::Label - static text widget
The class is designed for display of text, and assumes no user
interaction. The text output capabilities include wrapping, horizontal and
vertical alignment, and automatic widget resizing to match text extension.
If text contains a tilde-escaped ( hot ) character, the label can explicitly
focus the specified widget upon press of the character key, what feature is
useful for dialog design.
Labels can display rich text with links. See
Prima::Drawable::Markup for more.
use Prima qw(Label InputLine Application);
my $w = Prima::MainWindow->new;
$w->insert( 'Prima::Label',
text => 'Enter ~name:',
focusLink => 'InputLine1',
alignment => ta::Center,
pack => { fill => 'x', side => 'top', pad => 10 },
);
$w->insert(
'Prima::InputLine',
text => '',
pack => { fill => 'x', side => 'top', pad => 10 },
);
run Prima;
- alignment
INTEGER
- One of the following "ta::XXX"
constants:
ta::Left
ta::Center
ta::Right
Selects the horizontal text alignment.
Default value:
"ta::Left"
- autoHeight
BOOLEAN
- If 1, the widget height is automatically changed as text extensions
change.
Default value: 0
- autoWidth
BOOLEAN
- If 1, the widget width is automatically changed as text extensions change.
Default value: 1
- focusLink
WIDGET
- Points to a widget or a widget name (has to be a sibling widget), which is
explicitly focused when the user presses the combination of a hot key with
the "Alt" key.
Prima::Label does not provide a separate property to access
the hot key value, however it can be read from the
"{accel}" variable.
Default value: "undef".
- hotKey CHAR
- A key that the label will react to if pressed, even when out of
focus.
- showAccelChar
BOOLEAN
- If 0, the tilde ( ~ ) character is collapsed from the text, and the hot
character is underlined. When the user presses combination of the escaped
character with the "Alt" key, the
"focusLink" widget is explicitly
focused.
If 1, the text is showed as is, and no hot character is
underlined. Key combinations with
"Alt" key are not recognized. See
also: "hotKey".
Default value: 0
- showPartial
BOOLEAN
- Used to determine if the last line of text should be drawn if it can not
be vertically fit in the widget interior. If 1, the last line is shown
even if not visible in full. If 0, only full lines are drawn.
Default value: 1
- textJustify
$BOOL | { letter => 0, word => 0, kashida => 0, min_kashida => 0
} | %VALUES
- If set, justifies wrapped text according to the option passwd in the hash
( see "arabic_justify" in Prima::Drawable::Glyphs and
"interspace_justify" in Prima::Drawable::Glyphs ). Can accept
three forms:
If anonymous hash is used, overwrites all the currently
defined options.
If $BOOL is used, treated as a
shortcut for "{ letter => $BOOL, word =>
$BOOL, kashida => $BOOL }"; consequent get-calls return
full hash, not the $BOOL.
If %VALUES form is used, overwrites
only values found in %VALUES.
Only actual when "wordWrap"
is set.
- textDirection
BOOLEAN
- If set, indicates RTL text direction.
- wordWrap
BOOLEAN
- If 1, the text is wrapped if it can not be horizontally fit in the widget
interior.
If 0, the text is not wrapped unless new line characters are
present in the text.
New line characters signal line wrapping with no respect to
"wordWrap" property value.
Default value: 0
- valignment
INTEGER
- One of the following "ta::XXX"
constants:
ta::Top
ta::Middle or ta::Center
ta::Bottom
Selects the vertical text alignment.
NB: "ta::Middle" value is
not equal to "ta::Center"'s, however
the both constants produce equal effect here.
Default value: "ta::Top"
Dmitry Karasik, <dmitry@karasik.eu.org>.
Prima, Prima::Widget, Prima::Drawable::Markup,
Prima::Widget::Links, examples/label.pl
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