Gnome2::Canvas::Item(3pm)

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

6       Gnome2::Canvas::Item - wrapper for GnomeCanvasItem
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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, ...)
16       •   $parent (Gnome2::Canvas::Group)
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18       •   $object_class (string)
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20       •   ... (list) property name => value pairs
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22       Factory constructor for Gnome2::Canvas::Item subclasses.
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24   $item->affine_absolute ($affine)
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)
30       •   $affine (arrayref) affine transformation matrix
31
32       Combines $affine with $item's current transformation.
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34   (x1, y1, x2, y2) = $item->get_bounds
35   $canvas = $item->canvas
36       Fetch the Gnome2::Canvas to which $item is attached.
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38   grabstatus = $item->grab ($event_mask, $cursor, $etime=GDK_CURRENT_TIME)
39       •   $event_mask (Gtk2::Gdk::EventMask)
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41       •   $cursor (Gtk2::Gdk::Cursor)
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43       •   $etime (unsigned)
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45   $item->grab_focus
46   $item->hide
47   $affine = $item->i2c_affine
48       Fetch the affine transform that converts from item-relative coordinates
49       to canvas pixel coordinates.
50
51       Note: This method was completely broken for all
52       $Gnome2::Canvas::VERSION < 1.002.
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54   (x, y) = $item->i2w ($x, $y)
55       •   $x (double)
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57       •   $y (double)
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59   $affine = $item->i2w_affine
60       Fetch the affine transform that converts from item's coordinate system
61       to world coordinates.
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63       Note: This method was completely broken for all
64       $Gnome2::Canvas::VERSION < 1.002.
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66   $item->lower ($positions)
67       •   $positions (integer)
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69   $item->lower_to_bottom
70   $item->move ($dx, $dy)
71       •   $dx (double)
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73       •   $dy (double)
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75   $canvasgroup = $item->parent
76       Fetch $item's parent group item.
77
78   $item->raise ($positions)
79       •   $positions (integer)
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81   $item->raise_to_top
82   $item->reparent ($new_group)
83       •   $new_group (Gnome2::Canvas::Group)
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85   $item->request_update
86   $item->reset_bounds
87       Reset the bounding box of $item to an empty rectangle.
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89   $item->show
90   $item->ungrab ($etime=GDK_CURRENT_TIME)
91       •   $etime (unsigned)
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93   $item->update_bbox ($x1, $y1, $x2, $y2)
94       •   $x1 (integer)
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96       •   $y1 (integer)
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98       •   $x2 (integer)
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100       •   $y2 (integer)
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102       Set $item's bounding box to a new rectangle, and request a full
103       repaint.
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105   (x, y) = $item->w2i ($x, $y)
106       •   $x (double)
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108       •   $y (double)
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PROPERTIES

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

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

117   flags Gtk2::Gdk::EventMask
118       •   'exposure-mask' / 'GDK_EXPOSURE_MASK'
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120       •   'pointer-motion-mask' / 'GDK_POINTER_MOTION_MASK'
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122       •   'pointer-motion-hint-mask' / 'GDK_POINTER_MOTION_HINT_MASK'
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124       •   'button-motion-mask' / 'GDK_BUTTON_MOTION_MASK'
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126       •   'button1-motion-mask' / 'GDK_BUTTON1_MOTION_MASK'
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128       •   'button2-motion-mask' / 'GDK_BUTTON2_MOTION_MASK'
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130       •   'button3-motion-mask' / 'GDK_BUTTON3_MOTION_MASK'
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132       •   'button-press-mask' / 'GDK_BUTTON_PRESS_MASK'
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134       •   'button-release-mask' / 'GDK_BUTTON_RELEASE_MASK'
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136       •   'key-press-mask' / 'GDK_KEY_PRESS_MASK'
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138       •   'key-release-mask' / 'GDK_KEY_RELEASE_MASK'
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140       •   'enter-notify-mask' / 'GDK_ENTER_NOTIFY_MASK'
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142       •   'leave-notify-mask' / 'GDK_LEAVE_NOTIFY_MASK'
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144       •   'focus-change-mask' / 'GDK_FOCUS_CHANGE_MASK'
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146       •   'structure-mask' / 'GDK_STRUCTURE_MASK'
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148       •   'property-change-mask' / 'GDK_PROPERTY_CHANGE_MASK'
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150       •   'visibility-notify-mask' / 'GDK_VISIBILITY_NOTIFY_MASK'
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152       •   'proximity-in-mask' / 'GDK_PROXIMITY_IN_MASK'
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154       •   'proximity-out-mask' / 'GDK_PROXIMITY_OUT_MASK'
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156       •   'substructure-mask' / 'GDK_SUBSTRUCTURE_MASK'
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158       •   'scroll-mask' / 'GDK_SCROLL_MASK'
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160       •   'all-events-mask' / 'GDK_ALL_EVENTS_MASK'
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162   enum Gtk2::Gdk::GrabStatus
163       •   'success' / 'GDK_GRAB_SUCCESS'
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165       •   'already-grabbed' / 'GDK_GRAB_ALREADY_GRABBED'
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167       •   'invalid-time' / 'GDK_GRAB_INVALID_TIME'
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169       •   'not-viewable' / 'GDK_GRAB_NOT_VIEWABLE'
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171       •   'frozen' / 'GDK_GRAB_FROZEN'
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COPYRIGHT

177       Copyright (C) 2003-2004 by the Gtk2-Perl Team.
178
179       This software is licensed under the LGPL; see Gnome2::Canvas for a full
180       notice.
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184perl v5.36.0                      2022-07-22           Gnome2::Canvas::Item(3)