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-- $Date: 2004/03/08 10:52:58 $
-- $Revision: 1.34 $
-- $Author: jcrocholl $
-- $Hash: 18f95fbd33e383c14ae6c8db93f8d0e8 $
-- This file was automatically created with ado.php.
-- Manual changes will be lost when it is updated.
with Lists;
with Outlines; use Outlines;
with Glyph_Images; use Glyph_Images;
with Real_Numbers; use Real_Numbers;
with Real_Vectors; use Real_Vectors;
package Glyphs is
package Outline_Lists is new Lists(Outlines.Outline_Access);
subtype Outline_List is Outline_Lists.List;
subtype Outline_List_Access is Outline_Lists.List_Access;
-- Public representation.
type Glyph is limited private;
-- Pointer to representation data.
type Glyph_Access is access all Glyph;
-- Constructor for instances.
function Create
return Glyph_Access; -- The newly created glyph.
-- Accessor to read the bounds of a glyph.
function Get_Bounds
(This : access Glyph) -- The glyph to read from.
return Rectangle; -- The bounds of that glyph.
-- Accessor to read the outlines of a glyph.
function Get_Outlines
(This : access Glyph) -- The glyph to read from.
return Outline_List_Access; -- The outlines of that glyph.
-- Add an outline to a glyph.
procedure Add_Outline
(This : access Glyph; -- The glyph object instance.
Add : in Outline_Access); -- Add this outline to the glyph.
-- Make sure that the cached raster image is up to date.
procedure Update_Image
(This : access Glyph; -- The glyph object instance.
Staff_Height : in Real; -- Zoom factor.
Aspect_Ratio : in Real; -- Extra horizontal zoom factor.
Anti_Alias : in Positive); -- Factor for vertical anti-alias.
-- Get a raster image of this glyph. Create one if not cached.
function Get_Image
(This : access Glyph; -- The glyph object instance.
Staff_Height : in Real; -- Zoom factor.
Aspect_Ratio : in Real; -- Extra horizontal zoom factor.
Anti_Alias : in Positive) -- Factor for vertical anti-alias.
return Glyph_Image_Access; -- The image of the glyph.
-- Update the bounding box of the glyph.
procedure Set_Bounds
(This : access Glyph; -- The glyph object instance.
Left, Top : in Real; -- Coordinate minima.
Right, Bottom : in Real); -- Coordinate maxima.
-- Calculate the width of this glyph's bounding box.
function Get_Width
(This : access Glyph) -- The glyph object instance.
return Real; -- The width of the glyph.
-- Calculate the height of this glyph's bounding box.
function Get_Height
(This : access Glyph) -- The glyph object instance.
return Real; -- The height of the glyph.
procedure Print
(This : access Glyph; -- The glyph object instance.
Image : access Glyph_Image; -- Render into this image.
Center : in Vector); -- Pixel center coordinates.
private
-- Private representation.
type Glyph is limited record
Bounds : Rectangle; -- Dimensions of the glyph.
Outlines : Outline_List_Access; -- Defining the glyph's appearance.
Image : Glyph_Image_Access; -- Cached raster image of the glyph.
end record;
end Glyphs;