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.\" ========================================================================
.\"
.IX Title "Gnome2::Canvas::Item 3pm"
.TH Gnome2::Canvas::Item 3pm "2014-08-15" "perl v5.20.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Gnome2::Canvas::Item \- Base class for all canvas items
.SH "HIERARCHY"
.IX Header "HIERARCHY"
.Vb 4
\&  Glib::Object
\&  +\-\-\-\-Glib::InitiallyUnowned
\&       +\-\-\-\-Gtk2::Object
\&            +\-\-\-\-Gnome2::Canvas::Item
.Ve
.SH "METHODS"
.IX Header "METHODS"
.ie n .SS "item = Gnome2::Canvas::Item\->\fBnew\fP ($parent, $object_class, ...)"
.el .SS "item = Gnome2::Canvas::Item\->\fBnew\fP ($parent, \f(CW$object_class\fP, ...)"
.IX Subsection "item = Gnome2::Canvas::Item->new ($parent, $object_class, ...)"
.IP "\(bu" 4
\&\f(CW$parent\fR (Gnome2::Canvas::Group)
.IP "\(bu" 4
\&\f(CW$object_class\fR (string)
.IP "\(bu" 4
\&... (list) property name => value pairs
.PP
Factory constructor for Gnome2::Canvas::Item subclasses.
.ie n .SS "$item\->\fBaffine_absolute\fP ($affine)"
.el .SS "\f(CW$item\fP\->\fBaffine_absolute\fP ($affine)"
.IX Subsection "$item->affine_absolute ($affine)"
.IP "\(bu" 4
\&\f(CW$affine\fR (arrayref) affine transformation matrix
.PP
Replaces \fI\f(CI$item\fI\fR's transformation matrix.
.ie n .SS "$item\->\fBaffine_relative\fP ($affine)"
.el .SS "\f(CW$item\fP\->\fBaffine_relative\fP ($affine)"
.IX Subsection "$item->affine_relative ($affine)"
.IP "\(bu" 4
\&\f(CW$affine\fR (arrayref) affine transformation matrix
.PP
Combines \fI\f(CI$affine\fI\fR with \fI\f(CI$item\fI\fR's current transformation.
.ie n .SS "(x1, y1, x2, y2) = $item\->\fBget_bounds\fP"
.el .SS "(x1, y1, x2, y2) = \f(CW$item\fP\->\fBget_bounds\fP"
.IX Subsection "(x1, y1, x2, y2) = $item->get_bounds"
.ie n .SS "$canvas = $item\->\fBcanvas\fP"
.el .SS "\f(CW$canvas\fP = \f(CW$item\fP\->\fBcanvas\fP"
.IX Subsection "$canvas = $item->canvas"
Fetch the Gnome2::Canvas to which \fI\f(CI$item\fI\fR is attached.
.ie n .SS "grabstatus = $item\->\fBgrab\fP ($event_mask, $cursor, $etime=GDK_CURRENT_TIME)"
.el .SS "grabstatus = \f(CW$item\fP\->\fBgrab\fP ($event_mask, \f(CW$cursor\fP, \f(CW$etime\fP=GDK_CURRENT_TIME)"
.IX Subsection "grabstatus = $item->grab ($event_mask, $cursor, $etime=GDK_CURRENT_TIME)"
.IP "\(bu" 4
\&\f(CW$event_mask\fR (Gtk2::Gdk::EventMask)
.IP "\(bu" 4
\&\f(CW$cursor\fR (Gtk2::Gdk::Cursor)
.IP "\(bu" 4
\&\f(CW$etime\fR (unsigned)
.ie n .SS "$item\->\fBgrab_focus\fP"
.el .SS "\f(CW$item\fP\->\fBgrab_focus\fP"
.IX Subsection "$item->grab_focus"
.ie n .SS "$item\->\fBhide\fP"
.el .SS "\f(CW$item\fP\->\fBhide\fP"
.IX Subsection "$item->hide"
.ie n .SS "$affine = $item\->\fBi2c_affine\fP"
.el .SS "\f(CW$affine\fP = \f(CW$item\fP\->\fBi2c_affine\fP"
.IX Subsection "$affine = $item->i2c_affine"
Fetch the affine transform that converts from item-relative coordinates to
canvas pixel coordinates.
.PP
Note: This method was completely broken for all
\&\f(CW$Gnome2::Canvas::VERSION\fR < 1.002.
.ie n .SS "(x, y) = $item\->\fBi2w\fP ($x, $y)"
.el .SS "(x, y) = \f(CW$item\fP\->\fBi2w\fP ($x, \f(CW$y\fP)"
.IX Subsection "(x, y) = $item->i2w ($x, $y)"
.IP "\(bu" 4
\&\f(CW$x\fR (double)
.IP "\(bu" 4
\&\f(CW$y\fR (double)
.ie n .SS "$affine = $item\->\fBi2w_affine\fP"
.el .SS "\f(CW$affine\fP = \f(CW$item\fP\->\fBi2w_affine\fP"
.IX Subsection "$affine = $item->i2w_affine"
Fetch the affine transform that converts from item's coordinate system to
world coordinates.
.PP
Note: This method was completely broken for all
\&\f(CW$Gnome2::Canvas::VERSION\fR < 1.002.
.ie n .SS "$item\->\fBlower\fP ($positions)"
.el .SS "\f(CW$item\fP\->\fBlower\fP ($positions)"
.IX Subsection "$item->lower ($positions)"
.IP "\(bu" 4
\&\f(CW$positions\fR (integer)
.ie n .SS "$item\->\fBlower_to_bottom\fP"
.el .SS "\f(CW$item\fP\->\fBlower_to_bottom\fP"
.IX Subsection "$item->lower_to_bottom"
.ie n .SS "$item\->\fBmove\fP ($dx, $dy)"
.el .SS "\f(CW$item\fP\->\fBmove\fP ($dx, \f(CW$dy\fP)"
.IX Subsection "$item->move ($dx, $dy)"
.IP "\(bu" 4
\&\f(CW$dx\fR (double)
.IP "\(bu" 4
\&\f(CW$dy\fR (double)
.ie n .SS "$canvasgroup = $item\->\fBparent\fP"
.el .SS "\f(CW$canvasgroup\fP = \f(CW$item\fP\->\fBparent\fP"
.IX Subsection "$canvasgroup = $item->parent"
Fetch \fI\f(CI$item\fI\fR's parent group item.
.ie n .SS "$item\->\fBraise\fP ($positions)"
.el .SS "\f(CW$item\fP\->\fBraise\fP ($positions)"
.IX Subsection "$item->raise ($positions)"
.IP "\(bu" 4
\&\f(CW$positions\fR (integer)
.ie n .SS "$item\->\fBraise_to_top\fP"
.el .SS "\f(CW$item\fP\->\fBraise_to_top\fP"
.IX Subsection "$item->raise_to_top"
.ie n .SS "$item\->\fBreparent\fP ($new_group)"
.el .SS "\f(CW$item\fP\->\fBreparent\fP ($new_group)"
.IX Subsection "$item->reparent ($new_group)"
.IP "\(bu" 4
\&\f(CW$new_group\fR (Gnome2::Canvas::Group)
.ie n .SS "$item\->\fBrequest_update\fP"
.el .SS "\f(CW$item\fP\->\fBrequest_update\fP"
.IX Subsection "$item->request_update"
.ie n .SS "$item\->\fBreset_bounds\fP"
.el .SS "\f(CW$item\fP\->\fBreset_bounds\fP"
.IX Subsection "$item->reset_bounds"
Reset the bounding box of \fI\f(CI$item\fI\fR to an empty rectangle.
.ie n .SS "$item\->\fBshow\fP"
.el .SS "\f(CW$item\fP\->\fBshow\fP"
.IX Subsection "$item->show"
.ie n .SS "$item\->\fBungrab\fP ($etime=GDK_CURRENT_TIME)"
.el .SS "\f(CW$item\fP\->\fBungrab\fP ($etime=GDK_CURRENT_TIME)"
.IX Subsection "$item->ungrab ($etime=GDK_CURRENT_TIME)"
.IP "\(bu" 4
\&\f(CW$etime\fR (unsigned)
.ie n .SS "$item\->\fBupdate_bbox\fP ($x1, $y1, $x2, $y2)"
.el .SS "\f(CW$item\fP\->\fBupdate_bbox\fP ($x1, \f(CW$y1\fP, \f(CW$x2\fP, \f(CW$y2\fP)"
.IX Subsection "$item->update_bbox ($x1, $y1, $x2, $y2)"
.IP "\(bu" 4
\&\f(CW$x1\fR (integer)
.IP "\(bu" 4
\&\f(CW$y1\fR (integer)
.IP "\(bu" 4
\&\f(CW$x2\fR (integer)
.IP "\(bu" 4
\&\f(CW$y2\fR (integer)
.PP
Set \fI\f(CI$item\fI\fR's bounding box to a new rectangle, and request a full repaint.
.ie n .SS "(x, y) = $item\->\fBw2i\fP ($x, $y)"
.el .SS "(x, y) = \f(CW$item\fP\->\fBw2i\fP ($x, \f(CW$y\fP)"
.IX Subsection "(x, y) = $item->w2i ($x, $y)"
.IP "\(bu" 4
\&\f(CW$x\fR (double)
.IP "\(bu" 4
\&\f(CW$y\fR (double)
.SH "PROPERTIES"
.IX Header "PROPERTIES"
.IP "'parent' (Gnome2::Canvas::Item : default undef : readable / writable)" 4
.IX Item "'parent' (Gnome2::Canvas::Item : default undef : readable / writable)"
.SH "SIGNALS"
.IX Header "SIGNALS"
.PD 0
.IP "boolean = \fBevent\fR (Gnome2::Canvas::Item, Gtk2::Gdk::Event)" 4
.IX Item "boolean = event (Gnome2::Canvas::Item, Gtk2::Gdk::Event)"
.PD
.SH "ENUMS AND FLAGS"
.IX Header "ENUMS AND FLAGS"
.SS "flags Gtk2::Gdk::EventMask"
.IX Subsection "flags Gtk2::Gdk::EventMask"
.IP "\(bu" 4
\&'exposure\-mask' / '\s-1GDK_EXPOSURE_MASK\s0'
.IP "\(bu" 4
\&'pointer\-motion\-mask' / '\s-1GDK_POINTER_MOTION_MASK\s0'
.IP "\(bu" 4
\&'pointer\-motion\-hint\-mask' / '\s-1GDK_POINTER_MOTION_HINT_MASK\s0'
.IP "\(bu" 4
\&'button\-motion\-mask' / '\s-1GDK_BUTTON_MOTION_MASK\s0'
.IP "\(bu" 4
\&'button1\-motion\-mask' / '\s-1GDK_BUTTON1_MOTION_MASK\s0'
.IP "\(bu" 4
\&'button2\-motion\-mask' / '\s-1GDK_BUTTON2_MOTION_MASK\s0'
.IP "\(bu" 4
\&'button3\-motion\-mask' / '\s-1GDK_BUTTON3_MOTION_MASK\s0'
.IP "\(bu" 4
\&'button\-press\-mask' / '\s-1GDK_BUTTON_PRESS_MASK\s0'
.IP "\(bu" 4
\&'button\-release\-mask' / '\s-1GDK_BUTTON_RELEASE_MASK\s0'
.IP "\(bu" 4
\&'key\-press\-mask' / '\s-1GDK_KEY_PRESS_MASK\s0'
.IP "\(bu" 4
\&'key\-release\-mask' / '\s-1GDK_KEY_RELEASE_MASK\s0'
.IP "\(bu" 4
\&'enter\-notify\-mask' / '\s-1GDK_ENTER_NOTIFY_MASK\s0'
.IP "\(bu" 4
\&'leave\-notify\-mask' / '\s-1GDK_LEAVE_NOTIFY_MASK\s0'
.IP "\(bu" 4
\&'focus\-change\-mask' / '\s-1GDK_FOCUS_CHANGE_MASK\s0'
.IP "\(bu" 4
\&'structure\-mask' / '\s-1GDK_STRUCTURE_MASK\s0'
.IP "\(bu" 4
\&'property\-change\-mask' / '\s-1GDK_PROPERTY_CHANGE_MASK\s0'
.IP "\(bu" 4
\&'visibility\-notify\-mask' / '\s-1GDK_VISIBILITY_NOTIFY_MASK\s0'
.IP "\(bu" 4
\&'proximity\-in\-mask' / '\s-1GDK_PROXIMITY_IN_MASK\s0'
.IP "\(bu" 4
\&'proximity\-out\-mask' / '\s-1GDK_PROXIMITY_OUT_MASK\s0'
.IP "\(bu" 4
\&'substructure\-mask' / '\s-1GDK_SUBSTRUCTURE_MASK\s0'
.IP "\(bu" 4
\&'scroll\-mask' / '\s-1GDK_SCROLL_MASK\s0'
.IP "\(bu" 4
\&'all\-events\-mask' / '\s-1GDK_ALL_EVENTS_MASK\s0'
.SS "enum Gtk2::Gdk::GrabStatus"
.IX Subsection "enum Gtk2::Gdk::GrabStatus"
.IP "\(bu" 4
\&'success' / '\s-1GDK_GRAB_SUCCESS\s0'
.IP "\(bu" 4
\&'already\-grabbed' / '\s-1GDK_GRAB_ALREADY_GRABBED\s0'
.IP "\(bu" 4
\&'invalid\-time' / '\s-1GDK_GRAB_INVALID_TIME\s0'
.IP "\(bu" 4
\&'not\-viewable' / '\s-1GDK_GRAB_NOT_VIEWABLE\s0'
.IP "\(bu" 4
\&'frozen' / '\s-1GDK_GRAB_FROZEN\s0'
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Gnome2::Canvas, Glib::Object, Glib::InitiallyUnowned, Gtk2::Object
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (C) 2003\-2004 by the Gtk2\-Perl Team.
.PP
This software is licensed under the \s-1LGPL\s0; see Gnome2::Canvas for a full notice.