1Gnome2::Canvas::Item(3)User Contributed Perl DocumentatioGnnome2::Canvas::Item(3)
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NAME

6       Gnome2::Canvas::Item
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HIERARCHY

9         Glib::Object
10         +----Glib::InitiallyUnowned
11              +----Gtk2::Object
12                   +----Gnome2::Canvas::Item
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METHODS

15       item = Gnome2::Canvas::Item->new ($parent, $object_class, ...)
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17           * $parent (Gnome2::Canvas::Group)
18           * $object_class (string)
19           * ... (list) property name => value pairs
20
21           Factory constructor for Gnome2::Canvas::Item subclasses.
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23       $item->affine_absolute ($affine)
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25           * $affine (arrayref) affine transformation matrix
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27           Replaces $item's transformation matrix.
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29       $item->affine_relative ($affine)
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31           * $affine (arrayref) affine transformation matrix
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33           Combines $affine with $item's current transformation.
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35       (x1, y1, x2, y2) = $item->get_bounds
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37       $canvas = $item->canvas
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39           Fetch the Gnome2::Canvas to which $item is attached.
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41       grabstatus = $item->grab ($event_mask, $cursor, $etime=GDK_CUR‐
42       RENT_TIME)
43
44           * $event_mask (Gtk2::Gdk::EventMask)
45           * $cursor (Gtk2::Gdk::Cursor)
46           * $etime (unsigned)
47
48       $item->grab_focus
49
50       $item->hide
51
52       $affine = $item->i2c_affine
53
54           Fetch the affine transform that converts from item-relative coordi‐
55           nates to canvas pixel coordinates.
56
57           Note: This method was completely broken for all $Gnome2::Can‐
58           vas::VERSION < 1.002.
59
60       (x, y) = $item->i2w ($x, $y)
61
62           * $x (double)
63           * $y (double)
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65       $affine = $item->i2w_affine
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67           Fetch the affine transform that converts from item's coordinate
68           system to world coordinates.
69
70           Note: This method was completely broken for all $Gnome2::Can‐
71           vas::VERSION < 1.002.
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73       $item->lower ($positions)
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75           * $positions (integer)
76
77       $item->lower_to_bottom
78
79       $item->move ($dx, $dy)
80
81           * $dx (double)
82           * $dy (double)
83
84       $canvasgroup = $item->parent
85
86           Fetch $item's parent group item.
87
88       $item->raise ($positions)
89
90           * $positions (integer)
91
92       $item->raise_to_top
93
94       $item->reparent ($new_group)
95
96           * $new_group (Gnome2::Canvas::Group)
97
98       $item->request_update
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100       $item->reset_bounds
101
102           Reset the bounding box of $item to an empty rectangle.
103
104       $item->show
105
106       $item->ungrab ($etime=GDK_CURRENT_TIME)
107
108           * $etime (unsigned)
109
110       $item->update_bbox ($x1, $y1, $x2, $y2)
111
112           * $x1 (integer)
113           * $y1 (integer)
114           * $x2 (integer)
115           * $y2 (integer)
116
117           Set $item's bounding box to a new rectangle, and request a full
118           repaint.
119
120       (x, y) = $item->w2i ($x, $y)
121
122           * $x (double)
123           * $y (double)
124

PROPERTIES

126       'parent' (Gnome2::Canvas::Item : readable / writable)
127

SIGNALS

129       boolean = event (Gnome2::Canvas::Item, Gtk2::Gdk::Event)
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ENUMS AND FLAGS

132       flags Gtk2::Gdk::EventMask
133
134       * 'exposure-mask' / 'GDK_EXPOSURE_MASK'
135       * 'pointer-motion-mask' / 'GDK_POINTER_MOTION_MASK'
136       * 'pointer-motion-hint-mask' / 'GDK_POINTER_MOTION_HINT_MASK'
137       * 'button-motion-mask' / 'GDK_BUTTON_MOTION_MASK'
138       * 'button1-motion-mask' / 'GDK_BUTTON1_MOTION_MASK'
139       * 'button2-motion-mask' / 'GDK_BUTTON2_MOTION_MASK'
140       * 'button3-motion-mask' / 'GDK_BUTTON3_MOTION_MASK'
141       * 'button-press-mask' / 'GDK_BUTTON_PRESS_MASK'
142       * 'button-release-mask' / 'GDK_BUTTON_RELEASE_MASK'
143       * 'key-press-mask' / 'GDK_KEY_PRESS_MASK'
144       * 'key-release-mask' / 'GDK_KEY_RELEASE_MASK'
145       * 'enter-notify-mask' / 'GDK_ENTER_NOTIFY_MASK'
146       * 'leave-notify-mask' / 'GDK_LEAVE_NOTIFY_MASK'
147       * 'focus-change-mask' / 'GDK_FOCUS_CHANGE_MASK'
148       * 'structure-mask' / 'GDK_STRUCTURE_MASK'
149       * 'property-change-mask' / 'GDK_PROPERTY_CHANGE_MASK'
150       * 'visibility-notify-mask' / 'GDK_VISIBILITY_NOTIFY_MASK'
151       * 'proximity-in-mask' / 'GDK_PROXIMITY_IN_MASK'
152       * 'proximity-out-mask' / 'GDK_PROXIMITY_OUT_MASK'
153       * 'substructure-mask' / 'GDK_SUBSTRUCTURE_MASK'
154       * 'scroll-mask' / 'GDK_SCROLL_MASK'
155       * 'all-events-mask' / 'GDK_ALL_EVENTS_MASK'
156
157       enum Gtk2::Gdk::GrabStatus
158
159       * 'success' / 'GDK_GRAB_SUCCESS'
160       * 'already-grabbed' / 'GDK_GRAB_ALREADY_GRABBED'
161       * 'invalid-time' / 'GDK_GRAB_INVALID_TIME'
162       * 'not-viewable' / 'GDK_GRAB_NOT_VIEWABLE'
163       * 'frozen' / 'GDK_GRAB_FROZEN'
164

SEE ALSO

166       Gnome2::Canvas, Glib::Object, Glib::InitiallyUnowned, Gtk2::Object
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169       Copyright (C) 2003-2004 by the Gtk2-Perl Team.
170
171       This software is licensed under the LGPL; see Gnome2::Canvas for a full
172       notice.
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176perl v5.8.8                       2006-10-04           Gnome2::Canvas::Item(3)
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