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procedure Read (This : in out TP_Device; Str : out String) is
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Status : UART_Status;
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Data : UART_Data_8b (Str'Range);
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begin
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This.Port.Receive (Data, Status);
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if Status /= Ok then
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-- No error handling...
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raise Program_Error;
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end if;
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for Index in Str'Range loop
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Str (Index) := To_Char (Data (Index));
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end loop;
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end Read;
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----------------------
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-- Set_Line_Spacing --
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----------------------
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procedure Set_Line_Spacing (This : in out TP_Device; Spacing : UInt8) is
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begin
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Write (This, ASCII.ESC & '3' & To_Char (Spacing));
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end Set_Line_Spacing;
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---------------
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-- Set_Align --
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---------------
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procedure Set_Align (This : in out TP_Device; Align : Text_Align) is
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Mode : Character;
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begin
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case Align is
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when Left => Mode := '0';
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when Center => Mode := '1';
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when Right => Mode := '2';
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end case;
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Write (This, ASCII.ESC & 'a' & Mode);
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end Set_Align;
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----------------------
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-- Set_Font_Enlarge --
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----------------------
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procedure Set_Font_Enlarge (This : in out TP_Device; Height, Width : Boolean) is
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Data : UInt8 := 0;
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begin
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if Height then
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Data := Data or 16#01#;
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end if;
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if Width then
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Data := Data or 16#10#;
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end if;
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Write (This, ASCII.GS & '!' & To_Char (Data));
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end Set_Font_Enlarge;
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--------------
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-- Set_Bold --
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--------------
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procedure Set_Bold (This : in out TP_Device; Bold : Boolean) is
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begin
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Write (This, ASCII.ESC & 'E' & To_Char (if Bold then 1 else 0));
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end Set_Bold;
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----------------------
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-- Set_Double_Width --
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----------------------
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procedure Set_Double_Width (This : in out TP_Device; Double : Boolean) is
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begin
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if Double then
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Write (This, ASCII.ESC & ASCII.SO);
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else
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Write (This, ASCII.ESC & ASCII.DC4);
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end if;
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end Set_Double_Width;
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----------------
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-- Set_UpDown --
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----------------
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procedure Set_UpDown (This : in out TP_Device; UpDown : Boolean) is
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begin
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Write (This, ASCII.ESC & '{' & To_Char (if UpDown then 1 else 0));
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end Set_UpDown;
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------------------
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-- Set_Reversed --
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------------------
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procedure Set_Reversed (This : in out TP_Device; Reversed : Boolean) is
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begin
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Write (This, ASCII.GS & 'B' & To_Char (if Reversed then 1 else 0));
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end Set_Reversed;
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--------------------------
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-- Set_Underline_Height --
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--------------------------
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