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package FLTK.Images is
-------------
-- Types --
-------------
type Image is new Wrapper with private;
type Image_Reference (Data : not null access Image'Class) is limited null record
with Implicit_Dereference => Data;
type Scaling_Kind is (Nearest, Bilinear);
type Blend is new Float range 0.0 .. 1.0;
No_Image_Error, File_Access_Error, Format_Error : exception;
--------------------
-- Construction --
--------------------
package Forge is
function Create
(Width, Height, Depth : in Natural)
return Image;
end Forge;
function Get_Copy_Algorithm
return Scaling_Kind;
procedure Set_Copy_Algorithm
(To : in Scaling_Kind);
function Copy
(This : in Image;
Width, Height : in Natural)
return Image'Class;
function Copy
(This : in Image)
return Image'Class;
--------------
-- Colors --
--------------
procedure Color_Average
(This : in out Image;
Col : in Color;
Amount : in Blend);
procedure Desaturate
(This : in out Image);
----------------
-- Activity --
----------------
procedure Inactive
(This : in out Image);
function Is_Empty
(This : in Image)
return Boolean;
procedure Uncache
(This : in out Image);
------------------
-- Dimensions --
------------------
function Get_W
(This : in Image)
return Natural;
function Get_H
(This : in Image)
return Natural;
function Get_D
(This : in Image)
return Natural;
function Get_Line_Data
(This : in Image)
return Natural;
function Get_Data_Count
(This : in Image)
return Natural;
function Get_Data_Size
(This : in Image)
return Natural;
------------------
-- Pixel Data --
------------------
function Get_Datum
(This : in Image;
Data : in Positive;
Position : in Positive)
return Color_Component
with Pre =>
Data <= Get_Data_Count (This) and
Position <= Get_Data_Size (This);
procedure Set_Datum
(This : in out Image;
Data : in Positive;
Position : in Positive;
Value : in Color_Component)
with Pre =>
Data <= Get_Data_Count (This) and
Position <= Get_Data_Size (This);
function Get_Data
(This : in Image;
Data : in Positive;
Position : in Positive;
Count : in Natural)
return Color_Component_Array
with Pre =>
Data <= Get_Data_Count (This) and
Position <= Get_Data_Size (This) and
Count <= Get_Data_Size (This) - Position + 1;
function All_Data
(This : in Image;
Data : in Positive)
return Color_Component_Array
with Pre =>
Data <= Get_Data_Count (This);
procedure Update_Data
(This : in out Image;
Data : in Positive;
Position : in Positive;
Values : in Color_Component_Array)
with Pre =>
Data <= Get_Data_Count (This) and
Position <= Get_Data_Size (This) and
Values'Length <= Get_Data_Size (This) - Position + 1;
---------------
-- Drawing --
---------------
procedure Draw
(This : in Image;
X, Y : in Integer);
procedure Draw
(This : in Image;
X, Y, W, H : in Integer;
CX, CY : in Integer := 0);
procedure Draw_Empty
(This : in Image;
X, Y : in Integer);
private
type Image is new Wrapper with null record;
overriding procedure Finalize
(This : in out Image);
pragma Inline (Get_Copy_Algorithm);
pragma Inline (Set_Copy_Algorithm);
pragma Inline (Copy);
pragma Inline (Color_Average);
pragma Inline (Desaturate);
pragma Inline (Inactive);
pragma Inline (Is_Empty);
pragma Inline (Uncache);
pragma Inline (Get_W);
pragma Inline (Get_H);
pragma Inline (Get_D);
pragma Inline (Get_Line_Data);
pragma Inline (Get_Data_Count);
pragma Inline (Draw);
pragma Inline (Draw_Empty);
function fl_image_fail
(I : in System.Address)
return Interfaces.C.int;
pragma Import (C, fl_image_fail, "fl_image_fail");
end FLTK.Images;
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