DataMuseum.dk

Presents historical artifacts from the history of:

Rational R1000/400

This is an automatic "excavation" of a thematic subset of
artifacts from Datamuseum.dk's BitArchive.

See our Wiki for more about Rational R1000/400

Excavated with: AutoArchaeologist - Free & Open Source Software.


top - download

⟦970454ef7⟧ Ada Source

    Length: 10240 (0x2800)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Xlbp_Cut_Buffer, seg_004f55

Derivation

└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
    └─ ⟦cfc2e13cd⟧ »Space Info Vol 2« 
        └─⟦this⟧ 

E3 Source Code



with Xlbt_Arithmetic;  
use Xlbt_Arithmetic;  
with Xlbt_Atom_Defs;  
use Xlbt_Atom_Defs;  
with Xlbt_Basic;  
use Xlbt_Basic;  
with Xlbt_Cut_Buffer;  
use Xlbt_Cut_Buffer;  
with Xlbt_Window;  
use Xlbt_Window;

with Xlbp_Display;  
use Xlbp_Display;  
with Xlbp_Window_Property;  
use Xlbp_Window_Property;

package body Xlbp_Cut_Buffer is
------------------------------------------------------------------------------
-- X Library Cut and Paste Buffers
--
-- Xlbp_Cut_Buffer - Used to handle cut-and-paste buffers.
------------------------------------------------------------------------------
-- Copyright 1989 - 1991 by Rational, Santa Clara, California.
-- Copyright 1985 - 1989 by the Massachusetts Institute of Technology
--
--                  All Rights Reserved.
--
-- Permission to use, copy, modify, and distribute this software and its
-- documentation for any purpose and without fee is hereby granted,
-- provided that the above copyright notice(s) appear in all copies and that
-- both that copyright notice(s) and this permission notice appear in
-- supporting documentation, and that the names of MIT or Rational not be
-- used in advertising or publicity pertaining to distribution of the software
-- without specific, written prior permission.
--
-- MIT and Rational disclaim all warranties with regard to this software,
-- including all implied warranties of merchantability and fitness, in no
-- event shall MIT or Rational be liable for any special, indirect or
-- consequential damages or any damages whatsoever resulting from loss of use,
-- data or profits, whether in an action of contract, negligence or other
-- tortious action, arising out of or in connection with the use or performance
-- of this software.
------------------------------------------------------------------------------

--\x0c
    ----Insulate predefined atom numbers from cut routines

    N_To_Atom : constant X_Atom_Array (0 .. 7) := (Xa_Cut_Buffer0,  
                                                   Xa_Cut_Buffer1,  
                                                   Xa_Cut_Buffer2,  
                                                   Xa_Cut_Buffer3,  
                                                   Xa_Cut_Buffer4,  
                                                   Xa_Cut_Buffer5,  
                                                   Xa_Cut_Buffer6,  
                                                   Xa_Cut_Buffer7);


--\x0c
    function X_Fetch_Buffer (Display : X_Display;  
                             Buffer : X_Cut_Buffer_Number) return U_Char_List is
------------------------------------------------------------------------------
-- X_Fetch_Buffer
------------------------------------------------------------------------------
        Actual_Type   : X_Atom;  
        Actual_Format : U_Char;  
        N_Items       : S_Natural;  
        Leftover      : S_Natural;  
        Data          : U_Char_List;  
        Succ          : X_Status;  
    begin

----Get the first chunk of the buffer.  We may not get it all this time.

        X_Get_Window_Property (Display        => Display,  
                               Window         => X_Root_Window (Display, 0),  
                               Property       => N_To_Atom (S_Natural (Buffer)),  
                               Offset         => 0,  
                               Maximum_Length => S_Natural'Last / 4 * 4,  
                               Delete         => False,  
                               Representation => Xa_String,  
                               Actual_Type    => Actual_Type,  
                               Actual_Format  => Actual_Format,  
                               N_Items        => N_Items,  
                               Bytes_After    => Leftover,  
                               Data           => Data,  
                               Status         => Succ);

----See if we were successful.
        if Succ = Failed then  
            return None_U_Char_List;  
        end if;

----Check to see if we are happy with the format.

        if Actual_Type /= Xa_String or else  
           Actual_Format = 32 then
            -- I just duplicate the C code; I don't
            -- pretend to know why =32 and not /=8.
            Free_U_Char_List (Data);  
            return None_U_Char_List;  
        end if;

----Return the data.

        return Data;

    end X_Fetch_Buffer;

--\x0c
    function X_Fetch_Bytes (Display : X_Display) return U_Char_List is
------------------------------------------------------------------------------
-- X_Fetch_Bytes
------------------------------------------------------------------------------
    begin  
        return X_Fetch_Buffer (Display, 0);  
    end X_Fetch_Bytes;

--\x0c
    procedure X_Rotate_Buffers (Display : X_Display;  
                                Rotate  : S_Short) is
------------------------------------------------------------------------------
-- X_Rotate_Buffers
------------------------------------------------------------------------------
    begin

        X_Rotate_Window_Properties (Display     => Display,  
                                    Window      => X_Root_Window (Display, 0),  
                                    Properties  => N_To_Atom,  
                                    N_Positions => Rotate);

    end X_Rotate_Buffers;

--\x0c
    procedure X_Store_Buffer (Display : X_Display;  
                              Bytes   : U_Char_Array;  
                              Buffer  : X_Cut_Buffer_Number) is
------------------------------------------------------------------------------
-- X_Store_Buffer
------------------------------------------------------------------------------
    begin

        X_Change_Property (Display        => Display,  
                           Window         => X_Root_Window (Display, 0),  
                           Property       => N_To_Atom (S_Natural (Buffer)),  
                           Representation => Xa_String,  
                           Format         => 8,  
                           Mode           => Prop_Mode_Replace,  
                           Data           => Bytes);  
    end X_Store_Buffer;

--\x0c
    procedure X_Store_Bytes (Display : X_Display;  
                             Bytes   : U_Char_Array) is
------------------------------------------------------------------------------
-- X_Store_Bytes
------------------------------------------------------------------------------
    begin  
        X_Store_Buffer (Display, Bytes, 0);  
    end X_Store_Bytes;

--\x0c
end Xlbp_Cut_Buffer;  

E3 Meta Data

    nblk1=9
    nid=0
    hdr6=12
        [0x00] rec0=1f rec1=00 rec2=01 rec3=04a
        [0x01] rec0=12 rec1=00 rec2=02 rec3=068
        [0x02] rec0=14 rec1=00 rec2=03 rec3=02a
        [0x03] rec0=01 rec1=00 rec2=09 rec3=004
        [0x04] rec0=13 rec1=00 rec2=04 rec3=030
        [0x05] rec0=01 rec1=00 rec2=08 rec3=000
        [0x06] rec0=21 rec1=00 rec2=05 rec3=028
        [0x07] rec0=17 rec1=00 rec2=06 rec3=018
        [0x08] rec0=13 rec1=00 rec2=07 rec3=000
    tail 0x217006b1e819781efdce8 0x42a00088462063203