| Prima::Widget::Fader(3) | User Contributed Perl Documentation | Prima::Widget::Fader(3) |
NAME¶
Prima::Widget::Fader - fading- in/out functions
DESCRIPTION¶
The role implements fading effects in widgets
SYNOPSIS¶
use base qw(Prima::Widget Prima::Widget::Fader);
{
my %RNT = (
%{Prima::Widget-> notification_types()},
%{Prima::Widget::Fader-> notification_types()},
);
sub notification_types { return \%RNT; }
}
sub on_mouseenter { shift-> fader_in_mouse_enter }
sub on_mouseleave { shift-> fader_out_mouse_leave }
sub on_paint
{
my ( $self, $canvas ) = @_;
$canvas->backColor( $self-> fader_prelight_color( $self-> hiliteBackColor ));
$canvas->clear;
}
API¶
The API is currently under design so the parts that are documented are those that expected to be staying intact.
Methods¶
- fader_in_mouse_enter
- Initiates a fade-in transition, calls repaint on each step.
- fader_out_mouse_leave
- Initiates a fade-out transition, calls repaint on each step.
- fader_current_value
- Returns the current fader value in the range from 0 to 1. Returns "undef" if there is no current fading transition in effect
- fader_prelight_color $COLOR [, $MULTIPLIER ]
- Given a base $COLOR, increases (or decreases) its brightness according to "fader_current_value" and an eventual $MULTIPLIER that is expected to be in the range from 0 to 1.
Events¶
- FadeIn $ENDS_OK
- Called when "fader_in_mouse_enter" finishes the fading, the $ENDS_OK flag is set to 0 if the process was overridden by another fader call, 1 otherwise.
- FadeOut $ENDS_OK
- Called when "fader_out_mouse_leave" finishes the fading, the $ENDS_OK flag is set to 0 if the process was overridden by another fader call, 1 otherwise.
- FadeRepaint
- By default repaints the whole widget, but can be overloaded if only some widget parts need to reflect the fader effect.
AUTHOR¶
Dmitry Karasik, <dmitry@karasik.eu.org>.
SEE ALSO¶
Prima::Widget
| 2024-02-01 | perl v5.38.2 |