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Manual Reference Pages  -  GTK2::IMAGEVIEW::ZOOM (3)

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NAME

Gtk2::ImageView::Zoom - Functions for dealing with zoom factors

CONTENTS

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)

o $zoom (double)
Returns the zoom factor clamped to the minumum and maximum allowed values.

double = Gtk2::ImageView::Zoom->get_max_zoom

Returns the maximum allowed zoom factor.

double = Gtk2::ImageView::Zoom->get_min_zoom

Returns the minimum allowed zoom factor.

double = Gtk2::ImageView::Zoom->get_zoom_in ($zoom)

o $zoom (double)
Returns the zoom factor that is one step larger than the supplied zoom factor.

double = Gtk2::ImageView::Zoom->get_zoom_out ($zoom)

o $zoom (double)
Returns the zoom factor that is one step smaller than the supplied zoom factor.

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.

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