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-- Programmed by Jedidiah Barber
-- Released into the public domain
with
FLTK.Pixmap_Marshal,
Interfaces.C.Strings;
package body FLTK.Images.Pixmaps is
------------------------
-- Functions From C --
------------------------
-- Allocation --
function new_fl_pixmap
(D : in Storage.Integer_Address)
return Storage.Integer_Address;
pragma Import (C, new_fl_pixmap, "new_fl_pixmap");
pragma Inline (new_fl_pixmap);
procedure free_fl_pixmap
(I : in Storage.Integer_Address);
pragma Import (C, free_fl_pixmap, "free_fl_pixmap");
pragma Inline (free_fl_pixmap);
-- Copying --
function fl_pixmap_copy
(I : in Storage.Integer_Address;
W, H : in Interfaces.C.int)
return Storage.Integer_Address;
pragma Import (C, fl_pixmap_copy, "fl_pixmap_copy");
pragma Inline (fl_pixmap_copy);
function fl_pixmap_copy2
(I : in Storage.Integer_Address)
return Storage.Integer_Address;
pragma Import (C, fl_pixmap_copy2, "fl_pixmap_copy2");
pragma Inline (fl_pixmap_copy2);
-- Colors --
procedure fl_pixmap_color_average
(I : in Storage.Integer_Address;
C : in Interfaces.C.int;
B : in Interfaces.C.C_float);
pragma Import (C, fl_pixmap_color_average, "fl_pixmap_color_average");
pragma Inline (fl_pixmap_color_average);
procedure fl_pixmap_desaturate
(I : in Storage.Integer_Address);
pragma Import (C, fl_pixmap_desaturate, "fl_pixmap_desaturate");
pragma Inline (fl_pixmap_desaturate);
-- Activity --
procedure fl_pixmap_uncache
(I : in Storage.Integer_Address);
pragma Import (C, fl_pixmap_uncache, "fl_pixmap_uncache");
pragma Inline (fl_pixmap_uncache);
-- Drawing --
procedure fl_pixmap_draw2
(I : in Storage.Integer_Address;
X, Y : in Interfaces.C.int);
pragma Import (C, fl_pixmap_draw2, "fl_pixmap_draw2");
pragma Inline (fl_pixmap_draw2);
procedure fl_pixmap_draw
(I : in Storage.Integer_Address;
X, Y, W, H, CX, CY : in Interfaces.C.int);
pragma Import (C, fl_pixmap_draw, "fl_pixmap_draw");
pragma Inline (fl_pixmap_draw);
-------------------
-- Destructors --
-------------------
overriding procedure Finalize
(This : in out Pixmap) is
begin
if This.Void_Ptr /= Null_Pointer and This.Needs_Dealloc then
Pixmap_Marshal.Free_Recursive (This.Loose_Ptr);
free_fl_pixmap (This.Void_Ptr);
This.Void_Ptr := Null_Pointer;
end if;
end Finalize;
--------------------
-- Constructors --
--------------------
package body Forge is
function Create
(Values : in Header;
Colors : in Color_Definition_Array;
Pixels : in Pixmap_Data)
return Pixmap is
begin
return This : Pixmap do
This.Loose_Ptr := Pixmap_Marshal.Marshal_Data (Values, Colors, Pixels);
This.Void_Ptr := new_fl_pixmap
(Storage.To_Integer (This.Loose_Ptr (This.Loose_Ptr'First)'Address));
end return;
end Create;
end Forge;
-----------------------
-- API Subprograms --
-----------------------
-- Copying --
function Copy
(This : in Pixmap;
Width, Height : in Natural)
return Pixmap'Class is
begin
return Copied : Pixmap do
Copied.Void_Ptr := fl_pixmap_copy
(This.Void_Ptr,
Interfaces.C.int (Width),
Interfaces.C.int (Height));
end return;
end Copy;
function Copy
(This : in Pixmap)
return Pixmap'Class is
begin
return Copied : Pixmap do
Copied.Void_Ptr := fl_pixmap_copy2 (This.Void_Ptr);
end return;
end Copy;
-- Colors --
procedure Color_Average
(This : in out Pixmap;
Col : in Color;
Amount : in Blend) is
begin
fl_pixmap_color_average
(This.Void_Ptr,
Interfaces.C.int (Col),
Interfaces.C.C_float (Amount));
end Color_Average;
procedure Desaturate
(This : in out Pixmap) is
begin
fl_pixmap_desaturate (This.Void_Ptr);
end Desaturate;
-- Activity --
procedure Uncache
(This : in out Pixmap) is
begin
fl_pixmap_uncache (This.Void_Ptr);
end Uncache;
-- Drawing --
procedure Draw
(This : in Pixmap;
X, Y : in Integer) is
begin
fl_pixmap_draw2
(This.Void_Ptr,
Interfaces.C.int (X),
Interfaces.C.int (Y));
end Draw;
procedure Draw
(This : in Pixmap;
X, Y, W, H : in Integer;
Clip_X, Clip_Y : in Integer := 0) is
begin
fl_pixmap_draw
(This.Void_Ptr,
Interfaces.C.int (X),
Interfaces.C.int (Y),
Interfaces.C.int (W),
Interfaces.C.int (H),
Interfaces.C.int (Clip_X),
Interfaces.C.int (Clip_Y));
end Draw;
end FLTK.Images.Pixmaps;
|
