NAME¶
Gtk2::Gdk::Region - wrapper for GdkRegion
HIERARCHY¶
Glib::Boxed
+----Gtk2::Gdk::Region
METHODS¶
region = Gtk2::Gdk::Region->new¶
rectangle = $region->get_clipbox¶
boolean = $region->empty¶
boolean = $region1->equal ($region2)¶
- •
- $region2 (Gtk2::Gdk::Region)
$source1->intersect ($source2)¶
- •
- $source2 (Gtk2::Gdk::Region)
$region->offset ($dx, $dy)¶
- •
- $dx (integer)
- •
- $dy (integer)
boolean = $region->point_in ($x, $y)¶
- •
- $x (integer)
- •
- $y (integer)
region = Gtk2::Gdk::Region->polygon ($points_ref,
$fill_rule)¶
- •
- $points_ref (scalar)
- •
- $fill_rule (Gtk2::Gdk::FillRule)
boolean = $region->rect_equal ($rectangle)¶
- •
- $rectangle (Gtk2::Gdk::Rectangle)
Since: gtk+ 2.18
overlaptype = $region->rect_in ($rect)¶
- •
- $rect (Gtk2::Gdk::Rectangle)
region = Gtk2::Gdk::Region->rectangle ($rectangle)¶
- •
- $rectangle (Gtk2::Gdk::Rectangle)
list = $region->get_rectangles¶
Returns a list of rectangles (Gtk2::Gdk::Rectangle's), the area covered by the
region.
$region->shrink ($dx, $dy)¶
- •
- $dx (integer)
- •
- $dy (integer)
$region->spans_intersect_foreach ($spans_ref, $sorted,
$func, $data=undef)¶
- •
- $spans_ref (scalar) arrayref of triples [$x1,$y1,$width1,
$x2,$y2,$width2, ...]
- •
- $sorted (boolean)
- •
- $func (scalar)
- •
- $data (scalar)
Call $function for horizontal lines which intersect $region.
$spans_ref is an arrayref of x,y,width horizontal lines. If $sorted is true then
they're assumed to be sorted by increasing y coordinate (allowing a single
pass across the region rectangles). $function is called
&$function ($x, $y, $width, $data)
for each portion of a span which intersects $region. $function must not change
$region.
$region->spans_intersect_foreach ([ 0,0,50, 20,20,100, 0,10,50 ],
0, # spans not sorted by y
\&my_callback,
'hello'); # userdata
sub my_callback {
my ($x, $y, $width, $userdata) = @_;
print "$userdata: $x, $y, $width\n";
}
$source1->subtract ($source2)¶
- •
- $source2 (Gtk2::Gdk::Region)
$source1->union ($source2)¶
- •
- $source2 (Gtk2::Gdk::Region)
$region->union_with_rect ($rect)¶
- •
- $rect (Gtk2::Gdk::Rectangle)
$source1->xor ($source2)¶
- •
- $source2 (Gtk2::Gdk::Region)
ENUMS AND FLAGS¶
enum Gtk2::Gdk::FillRule¶
- •
- 'even-odd-rule' / 'GDK_EVEN_ODD_RULE'
- •
- 'winding-rule' / 'GDK_WINDING_RULE'
enum Gtk2::Gdk::OverlapType¶
- •
- 'in' / 'GDK_OVERLAP_RECTANGLE_IN'
- •
- 'out' / 'GDK_OVERLAP_RECTANGLE_OUT'
- •
- 'part' / 'GDK_OVERLAP_RECTANGLE_PART'
SEE ALSO¶
Gtk2, Glib::Boxed
COPYRIGHT¶
Copyright (C) 2003-2011 by the gtk2-perl team.
This software is licensed under the LGPL. See Gtk2 for a full notice.