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with
Interfaces.C,
System;
use type
Interfaces.C.int,
System.Address;
package body FLTK.Images is
function new_fl_image
(W, H, D : in Interfaces.C.int)
return System.Address;
pragma Import (C, new_fl_image, "new_fl_image");
procedure free_fl_image
(I : in System.Address);
pragma Import (C, free_fl_image, "free_fl_image");
function fl_image_copy
(I : in System.Address;
W, H : in Interfaces.C.int)
return System.Address;
pragma Import (C, fl_image_copy, "fl_image_copy");
function fl_image_copy2
(I : in System.Address)
return System.Address;
pragma Import (C, fl_image_copy2, "fl_image_copy2");
procedure fl_image_color_average
(I : in System.Address;
C : in Interfaces.C.int;
B : in Interfaces.C.C_float);
pragma Import (C, fl_image_color_average, "fl_image_color_average");
procedure fl_image_desaturate
(I : in System.Address);
pragma Import (C, fl_image_desaturate, "fl_image_desaturate");
procedure fl_image_inactive
(I : in System.Address);
pragma Import (C, fl_image_inactive, "fl_image_inactive");
function fl_image_w
(I : in System.Address)
return Interfaces.C.int;
pragma Import (C, fl_image_w, "fl_image_w");
function fl_image_h
(I : in System.Address)
return Interfaces.C.int;
pragma Import (C, fl_image_h, "fl_image_h");
function fl_image_d
(I : in System.Address)
return Interfaces.C.int;
pragma Import (C, fl_image_d, "fl_image_d");
procedure fl_image_draw
(I : in System.Address;
X, Y : in Interfaces.C.int);
pragma Import (C, fl_image_draw, "fl_image_draw");
procedure fl_image_draw2
(I : in System.Address;
X, Y, W, H, CX, CY : in Interfaces.C.int);
pragma Import (C, fl_image_draw2, "fl_image_draw2");
procedure fl_image_draw_empty
(I : in System.Address;
X, Y : in Interfaces.C.int);
pragma Import (C, fl_image_draw_empty, "fl_image_draw_empty");
overriding procedure Finalize
(This : in out Image) is
begin
if This.Void_Ptr /= System.Null_Address and then
This in Image'Class
then
free_fl_image (This.Void_Ptr);
This.Void_Ptr := System.Null_Address;
end if;
end Finalize;
package body Forge is
function Create
(Width, Height, Depth : in Natural)
return Image is
begin
return This : Image do
This.Void_Ptr := new_fl_image
(Interfaces.C.int (Width),
Interfaces.C.int (Height),
Interfaces.C.int (Depth));
case fl_image_fail (This.Void_Ptr) is
when 1 =>
raise No_Image_Error;
when 2 =>
raise File_Access_Error;
when 3 =>
raise Format_Error;
when others =>
null;
end case;
end return;
end Create;
end Forge;
function Copy
(This : in Image;
Width, Height : in Natural)
return Image'Class is
begin
return Copied : Image do
Copied.Void_Ptr := fl_image_copy
(This.Void_Ptr,
Interfaces.C.int (Width),
Interfaces.C.int (Height));
end return;
end Copy;
function Copy
(This : in Image)
return Image'Class is
begin
return Copied : Image do
Copied.Void_Ptr := fl_image_copy2 (This.Void_Ptr);
end return;
end Copy;
procedure Color_Average
(This : in out Image;
Col : in Color;
Amount : in Blend) is
begin
fl_image_color_average
(This.Void_Ptr,
Interfaces.C.int (Col),
Interfaces.C.C_float (Amount));
end Color_Average;
procedure Desaturate
(This : in out Image) is
begin
fl_image_desaturate (This.Void_Ptr);
end Desaturate;
procedure Inactive
(This : in out Image) is
begin
fl_image_inactive (This.Void_Ptr);
end Inactive;
function Is_Empty
(This : in Image)
return Boolean is
begin
return fl_image_fail (This.Void_Ptr) /= 0;
end Is_Empty;
function Get_W
(This : in Image)
return Natural is
begin
return Natural (fl_image_w (This.Void_Ptr));
end Get_W;
function Get_H
(This : in Image)
return Natural is
begin
return Natural (fl_image_h (This.Void_Ptr));
end Get_H;
function Get_D
(This : in Image)
return Natural is
begin
return Natural (fl_image_d (This.Void_Ptr));
end Get_D;
procedure Draw
(This : in Image;
X, Y : in Integer) is
begin
fl_image_draw
(This.Void_Ptr,
Interfaces.C.int (X),
Interfaces.C.int (Y));
end Draw;
procedure Draw
(This : in Image;
X, Y, W, H : in Integer;
CX, CY : in Integer := 0) is
begin
fl_image_draw2
(This.Void_Ptr,
Interfaces.C.int (X),
Interfaces.C.int (Y),
Interfaces.C.int (W),
Interfaces.C.int (H),
Interfaces.C.int (CX),
Interfaces.C.int (CY));
end Draw;
procedure Draw_Empty
(This : in Image;
X, Y : in Integer) is
begin
fl_image_draw_empty
(This.Void_Ptr,
Interfaces.C.int (X),
Interfaces.C.int (Y));
end Draw_Empty;
end FLTK.Images;
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