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+
+
+-- Programmed by Jedidiah Barber
+-- Released into the public domain
+
+
+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 Storage.Integer_Address)
+ return Interfaces.C.int;
+ pragma Import (C, fl_image_fail, "fl_image_fail");
+
+
+end FLTK.Images;
+