table of contents
Gnome2::Canvas::Item(3pm) | User Contributed Perl Documentation | 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¶
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.
2017-07-23 | perl v5.26.0 |