text stringlengths 0 234 |
|---|
-- if Llen /= Rlen then |
-- Raise_Error; |
-- end if; |
-- this routine is called only for 1, 2, or 4 byte lengths. |
-- The Rlen/Llen parameter is either, 8, 16, or 32. |
if Llen = 8 then |
declare |
use Interfaces; |
Left_Byte : Unsigned_8; |
for Left_Byte'Address use Left; |
Right_Byte : Unsigned_8; |
for Right_Byte'Address use Right; |
Result_Byte : Unsigned_8; |
for Result_Byte'Address use Result; |
begin |
Result_Byte := Left_Byte and Right_Byte; |
Function Definition: function To_Stack_Pool is new |
Function Body: Ada.Unchecked_Conversion (Address, Stk_Pool_Access); |
pragma Warnings (Off); |
function To_Global_Ptr is new |
Ada.Unchecked_Conversion (Address, SS_Stack_Ptr); |
pragma Warnings (On); |
-- Suppress aliasing warning since the pointer we return will |
-- be the only access to the stack. |
Local_Stk_Address : System.Address; |
begin |
Num_Of_Assigned_Stacks := Num_Of_Assigned_Stacks + 1; |
Local_Stk_Address := |
To_Stack_Pool |
(Default_Sized_SS_Pool) (Num_Of_Assigned_Stacks)'Address; |
Stack := To_Global_Ptr (Local_Stk_Address); |
Function Definition: procedure Draw_Glyph is new Hershey_Fonts.Draw_Glyph |
Function Body: (Internal_Draw_Line); |
Current : Point := Start; |
begin |
Buffer.Set_Source (Foreground); |
for C of Msg loop |
exit when Current.X > Buffer.Width; |
Draw_Glyph |
(Fnt => Font, |
C => C, |
X => Current.X, |
Y => Current.Y, |
Height => Height, |
Bold => Bold); |
end loop; |
end Draw_String; |
----------------- |
-- Draw_String -- |
----------------- |
procedure Draw_String |
(Buffer : in out Bitmap_Buffer'Class; |
Area : Rect; |
Msg : String; |
Font : Hershey_Font; |
Bold : Boolean; |
Outline : Boolean; |
Foreground : Bitmap_Color; |
Fast : Boolean := True) |
is |
Length : constant Natural := |
Hershey_Fonts.Strlen (Msg, Font, Area.Height); |
Ratio : Float; |
Current : Point := (0, 0); |
Prev : UInt32; |
FG : constant UInt32 := Bitmap_Color_To_Word (Buffer.Color_Mode, |
Foreground); |
Blk : constant UInt32 := Bitmap_Color_To_Word (Buffer.Color_Mode, |
Black); |
procedure Internal_Draw_Line |
(X0, Y0, X1, Y1 : Natural; |
Width : Positive); |
procedure Internal_Draw_Line |
(X0, Y0, X1, Y1 : Natural; |
Width : Positive) |
is |
begin |
Draw_Line (Buffer, |
(Area.Position.X + Natural (Float (X0) * Ratio), |
Area.Position.Y + Y0), |
(Area.Position.X + Natural (Float (X1) * Ratio), |
Area.Position.Y + Y1), |
Width, |
Fast); |
end Internal_Draw_Line; |
procedure Draw_Glyph is new Hershey_Fonts.Draw_Glyph |
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