Gnome2::Canvas::Item (3)

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Standard preamble:
========================================================================

(The comments found at the beginning of the groff file "man3/Gnome2::Canvas::Item.3pm".)

NAME

Gnome2::Canvas::Item - Base class for all canvas items

HIERARCHY

  Glib::Object
  +----Glib::InitiallyUnowned
       +----Gtk2::Object
            +----Gnome2::Canvas::Item

METHODS

item = Gnome2::Canvas::Item->new ($parent, $object_class, ...)

*

$parent (Gnome2::Canvas::Group)

*

$object_class (string)

*

... (list) property name => value pairs

Factory constructor for Gnome2::Canvas::Item subclasses.

$item->affine_absolute ($affine)

*

$affine (arrayref) affine transformation matrix

Replaces $item's transformation matrix.

$item->affine_relative ($affine)

*

$affine (arrayref) affine transformation matrix

Combines $affine with $item's current transformation.

(x1, y1, x2, y2) = $item->get_bounds

$canvas = $item->canvas

Fetch the Gnome2::Canvas to which $item is attached.

grabstatus = $item->grab ($event_mask, $cursor, $etime=GDK_CURRENT_TIME)

*

$event_mask (Gtk2::Gdk::EventMask)

*

$cursor (Gtk2::Gdk::Cursor)

*

$etime (unsigned)

$item->grab_focus

$item->hide

$affine = $item->i2c_affine

Fetch the affine transform that converts from item-relative coordinates to canvas pixel coordinates.

Note: This method was completely broken for all $Gnome2::Canvas::VERSION < 1.002.

(x, y) = $item->i2w ($x, $y)

*

$x (double)

*

$y (double)

$affine = $item->i2w_affine

Fetch the affine transform that converts from item's coordinate system to world coordinates.

Note: This method was completely broken for all $Gnome2::Canvas::VERSION < 1.002.

$item->lower ($positions)

*

$positions (integer)

$item->lower_to_bottom

$item->move ($dx, $dy)

*

$dx (double)

*

$dy (double)

$canvasgroup = $item->parent

Fetch $item's parent group item.

$item->raise ($positions)

*

$positions (integer)

$item->raise_to_top

$item->reparent ($new_group)

*

$new_group (Gnome2::Canvas::Group)

$item->request_update

$item->reset_bounds

Reset the bounding box of $item to an empty rectangle.

$item->show

$item->ungrab ($etime=GDK_CURRENT_TIME)

*

$etime (unsigned)

$item->update_bbox ($x1, $y1, $x2, $y2)

*

$x1 (integer)

*

$y1 (integer)

*

$x2 (integer)

*

$y2 (integer)

Set $item's bounding box to a new rectangle, and request a full repaint.

(x, y) = $item->w2i ($x, $y)

*

$x (double)

*

$y (double)

PROPERTIES

'parent' (Gnome2::Canvas::Item : default undef : readable / writable)

SIGNALS

boolean = event (Gnome2::Canvas::Item, Gtk2::Gdk::Event)

ENUMS AND FLAGS

flags Gtk2::Gdk::EventMask

*

'exposure-mask' / '

GDK_EXPOSURE_MASK

'

*

'pointer-motion-mask' / '

GDK_POINTER_MOTION_MASK

'

*

'pointer-motion-hint-mask' / '

GDK_POINTER_MOTION_HINT_MASK

'

*

'button-motion-mask' / '

GDK_BUTTON_MOTION_MASK

'

*

'button1-motion-mask' / '

GDK_BUTTON1_MOTION_MASK

'

*

'button2-motion-mask' / '

GDK_BUTTON2_MOTION_MASK

'

*

'button3-motion-mask' / '

GDK_BUTTON3_MOTION_MASK

'

*

'button-press-mask' / '

GDK_BUTTON_PRESS_MASK

'

*

'button-release-mask' / '

GDK_BUTTON_RELEASE_MASK

'

*

'key-press-mask' / '

GDK_KEY_PRESS_MASK

'

*

'key-release-mask' / '

GDK_KEY_RELEASE_MASK

'

*

'enter-notify-mask' / '

GDK_ENTER_NOTIFY_MASK

'

*

'leave-notify-mask' / '

GDK_LEAVE_NOTIFY_MASK

'

*

'focus-change-mask' / '

GDK_FOCUS_CHANGE_MASK

'

*

'structure-mask' / '

GDK_STRUCTURE_MASK

'

*

'property-change-mask' / '

GDK_PROPERTY_CHANGE_MASK

'

*

'visibility-notify-mask' / '

GDK_VISIBILITY_NOTIFY_MASK

'

*

'proximity-in-mask' / '

GDK_PROXIMITY_IN_MASK

'

*

'proximity-out-mask' / '

GDK_PROXIMITY_OUT_MASK

'

*

'substructure-mask' / '

GDK_SUBSTRUCTURE_MASK

'

*

'scroll-mask' / '

GDK_SCROLL_MASK

'

*

'all-events-mask' / '

GDK_ALL_EVENTS_MASK

'

enum Gtk2::Gdk::GrabStatus

*

'success' / '

GDK_GRAB_SUCCESS

'

*

'already-grabbed' / '

GDK_GRAB_ALREADY_GRABBED

'

*

'invalid-time' / '

GDK_GRAB_INVALID_TIME

'

*

'not-viewable' / '

GDK_GRAB_NOT_VIEWABLE

'

*

'frozen' / '

GDK_GRAB_FROZEN

'

SEE ALSO

Gnome2::Canvas, Glib::Object, Glib::InitiallyUnowned, Gtk2::Object

COPYRIGHT

Copyright (C) 2003-2004 by the Gtk2-Perl Team.

This software is licensed under the

; see Gnome2::Canvas for a full notice.