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ISBN : 978-2-7460-9712-4
EAN : 9782746097124
(Editions ENI)

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Debian 6.0.6

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Gnome2::Canvas::Item(3pm)


Gnome2::Canvas::Item

Gnome2::Canvas::Item

NAME
HIERARCHY
METHODS
PROPERTIES
SIGNALS
ENUMS AND FLAGS
SEE ALSO
COPYRIGHT

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 : 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 LGPL ; see Gnome2::Canvas for a full notice.



Gnome2::Canvas::Item(3pm)