gtk2::gdk::region(3pm) [debian man page]

Gtk2::Gdk::Region(3pm)					User Contributed Perl Documentation				    Gtk2::Gdk::Region(3pm)

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)
       o   $region2 (Gtk2::Gdk::Region)

   $source1->intersect ($source2)
       o   $source2 (Gtk2::Gdk::Region)

   $region->offset ($dx, $dy)
       o   $dx (integer)

       o   $dy (integer)

   boolean = $region->point_in ($x, $y)
       o   $x (integer)

       o   $y (integer)

   region = Gtk2::Gdk::Region->polygon ($points_ref, $fill_rule)
       o   $points_ref (scalar)

       o   $fill_rule (Gtk2::Gdk::FillRule)

   boolean = $region->rect_equal ($rectangle)
       o   $rectangle (Gtk2::Gdk::Rectangle)

       Since: gtk+ 2.18

   overlaptype = $region->rect_in ($rect)
       o   $rect (Gtk2::Gdk::Rectangle)

   region = Gtk2::Gdk::Region->rectangle ($rectangle)
       o   $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)
       o   $dx (integer)

       o   $dy (integer)

   $region->spans_intersect_foreach ($spans_ref, $sorted, $func, $data=undef)
       o   $spans_ref (scalar) arrayref of triples [$x1,$y1,$width1, $x2,$y2,$width2, ...]

       o   $sorted (boolean)

       o   $func (scalar)

       o   $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
";
	   }

   $source1->subtract ($source2)
       o   $source2 (Gtk2::Gdk::Region)

   $source1->union ($source2)
       o   $source2 (Gtk2::Gdk::Region)

   $region->union_with_rect ($rect)
       o   $rect (Gtk2::Gdk::Rectangle)

   $source1->xor ($source2)
       o   $source2 (Gtk2::Gdk::Region)

ENUMS AND FLAGS

   enum Gtk2::Gdk::FillRule
       o   'even-odd-rule' / 'GDK_EVEN_ODD_RULE'

       o   'winding-rule' / 'GDK_WINDING_RULE'

   enum Gtk2::Gdk::OverlapType
       o   'in' / 'GDK_OVERLAP_RECTANGLE_IN'

       o   'out' / 'GDK_OVERLAP_RECTANGLE_OUT'

       o   '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.

perl v5.14.2							    2012-05-27						    Gtk2::Gdk::Region(3pm)

Check Out this Related Man Page

Gtk2::Gdk::Cairo::Context(3pm)				User Contributed Perl Documentation			    Gtk2::Gdk::Cairo::Context(3pm)

NAME

       Gtk2::Gdk::Cairo::Context

HIERARCHY

	   Cairo::Context
	   +---- Gtk2::Gdk::Cairo::Context   (Perl subclass)

DESCRIPTION

       This is some inter-operation between Cairo (see Cairo) and Gdk things.

       A "Gtk2::Gdk::Cairo::Context" lets Cairo draw on a Gdk drawable (window or pixmap).  It's a Perl-level subclass of "Cairo::Context" and the
       various functions below can be used as methods on it.

       The methods can also be used on other "Cairo::Context" as plain functions.  For example "set_source_pixbuf" can setup to draw from a
       "Gtk2::Gdk::Pixbuf" to any Cairo context,

	   my $cr = Cairo::Context->create ($surface);
	   Gtk2::Gdk::Cairo::Context::set_source_pixbuf ($cr, $pixbuf, $x,$y);
	   $cr->paint;

METHODS

   gdkcr = Gtk2::Gdk::Cairo::Context->create ($drawable)
       o   $drawable (Gtk2::Gdk::Drawable)

   $gdkcr->rectangle ($rectangle)
   $gdkcr->rectangle ($x, $y, $width, $height)
   Gtk2::Gdk::Cairo::Context::rectangle ($anycr, $rectangle)
       o   $rectangle (Gtk2::Gdk::Rectangle)

       The 4-argument x,y,width,height is the base Cairo::Context style.  This extends to also take a "Gtk2::Gdk::Rectangle".

   $gdkcr->region ($region)
   Gtk2::Gdk::Cairo::Context::region ($anycr, $region)
       o   $region (Gtk2::Gdk::Region)

   $gdkcr->reset_clip ($drawable)
   Gtk2::Gdk::Cairo::Context::reset_clip ($anycr, $drawable)
       o   $drawable (Gtk2::Gdk::Drawable)

       Since: gtk+ 2.18

   $gdkcr->set_source_color ($color)
   Gtk2::Gdk::Cairo::Context::set_source_color ($anycr, $color)
       o   $color (Gtk2::Gdk::Color)

   $gdkcr->set_source_pixbuf ($pixbuf, $pixbuf_x, $pixbuf_y)
   Gtk2::Gdk::Cairo::Context::set_source_pixbuf ($anycr, $pixbuf, $pixbuf_x, $pixbuf_y)
       o   $pixbuf (Gtk2::Gdk::Pixbuf)

       o   $pixbuf_x (double)

       o   $pixbuf_y (double)

   $gdkcr->set_source_pixmap ($pixmap, $pixmap_x, $pixmap_y)
   Gtk2::Gdk::Cairo::Context::set_source_pixmap ($anycr, $pixmap, $pixmap_x, $pixmap_y)
       o   $pixmap (Gtk2::Gdk::Pixmap)

       o   $pixmap_x (double)

       o   $pixmap_y (double)

       Since: gtk+ 2.10

SEE ALSO

       Gtk2

COPYRIGHT

       Copyright (C) 2003-2011 by the gtk2-perl team.

       This software is licensed under the LGPL.  See Gtk2 for a full notice.

perl v5.14.2							    2012-05-27					    Gtk2::Gdk::Cairo::Context(3pm)

Linux and UNIX Man Pages

gtk2::gdk::region(3pm) [debian man page]

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