Gtk2::ImageView::Zoom(User Contributed Perl DocumentatGtk2::ImageView::Zoom(3)NAMEGtk2::ImageView::Zoom - Functions for dealing with zoom factors
DESCRIPTION
GtkImageView uses a discrete amount of zoom factors for determining
which zoom to set. Using these functions, it is possible to retrieve
information and manipulate a zoom factor.
METHODS
double = Gtk2::ImageView::Zoom->clamp_zoom ($zoom)
· $zoom (double)
Returns the zoom factor clamped to the minumum and maximum allowed
value.
zoom : A zoom factor.
Returns
The zoom factor clamped to the interval [min, max].
double = Gtk2::ImageView::Zoom->get_max_zoom
Returns the maximum allowed zoom factor.
Returns
The maximal zoom factor.
double = Gtk2::ImageView::Zoom->get_min_zoom
Returns the minimum allowed zoom factor.
Returns
The minimal zoom factor.
double = Gtk2::ImageView::Zoom->get_zoom_in ($zoom)
· $zoom (double)
Returns the zoom factor that is one step larger than the supplied zoom
factor.
zoom : A zoom factor.
Returns
a zoom factor that is one step larger than the supplied one
double = Gtk2::ImageView::Zoom->get_zoom_out ($zoom)
· $zoom (double)
Returns the zoom factor that is one step smaller than the supplied zoom
factor.
zoom : A zoom factor.
Returns
a zoom factor that is one step smaller than the supplied one.
SEE ALSO
Gtk2::ImageView
COPYRIGHT
Copyright (C) 2007 by Jeffrey Ratcliffe.
This software is licensed under the GPL-3; see Gtk2::ImageView for a
full notice.
perl v5.14.1 2011-06-21 Gtk2::ImageView::Zoom(3)