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DataMuseum.dkPresents historical artifacts from the history of: Rational R1000/400 |
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Length: 13312 (0x3400)
Types: Ada Source
Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Xlbp_Cursor, seg_004f53
└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
└─⟦cfc2e13cd⟧ »Space Info Vol 2«
└─⟦this⟧
with Xlbt_Arithmetic;
use Xlbt_Arithmetic;
with Xlbt_Basic;
use Xlbt_Basic;
with Xlbt_Color;
use Xlbt_Color;
with Xlbt_Cursor_Font;
use Xlbt_Cursor_Font;
with Xlbt_Gc;
use Xlbt_Gc;
with Xlbt_Request;
use Xlbt_Request;
with Xlbt_String;
use Xlbt_String;
with Xlbt_Window;
use Xlbt_Window;
with Xlbp_Extension;
use Xlbp_Extension;
with Xlbp_Font;
use Xlbp_Font;
with Xlbp_Gc;
use Xlbp_Gc;
with Xlbip_Internal;
use Xlbip_Internal;
with Xlbip_Put_Request;
use Xlbip_Put_Request;
with Xlbmt_Parameters;
use Xlbmt_Parameters;
package body Xlbp_Cursor is
------------------------------------------------------------------------------
-- X Library Cursors
--
-- Xlbp_Cursor - Creating, changing, and destroying cursors.
------------------------------------------------------------------------------
-- 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
Foreground : constant X_Color :=
(None_X_Pixel, 0, 0, 0, None_X_Color_Flags, 0); -- black
Background : constant X_Color :=
(None_X_Pixel, 65535, 65535, 65535, None_X_Color_Flags, 0); -- white
--\x0c
function X_Create_Font_Cursor (Display : X_Display;
Cursor : X_Cursor_Font) return X_Cursor is
--
-- the cursor font contains the shape glyph followed by the mask
-- glyph; so character the_position 0 contains a shape, 1 the mask for 0,
-- 2 a shape, etc. <X11/cursorfont.h> contains hash define names
-- for all of these.
--
Result : X_Cursor;
begin
if Display.Cursor_Font = None_X_Font then
Display.Cursor_Font :=
X_Load_Font (Display, To_X_String (X_Cursor_Font_Name));
if Display.Cursor_Font = None_X_Font then
return None_X_Cursor;
end if;
end if;
Result := X_Create_Glyph_Cursor
(Display, Display.Cursor_Font, Display.Cursor_Font,
U_Short (Cursor), U_Short (Cursor + 1),
Foreground, Background);
return Result;
end X_Create_Font_Cursor;
--\x0c
function X_Create_Glyph_Cursor (Display : X_Display;
Source_Font : X_Font;
Mask_Font : X_Font;
Source_Char : U_Short;
Mask_Char : U_Short;
Foreground : X_Color;
Background : X_Color) return X_Cursor is
Cid : X_Cursor;
begin
----Lock the display.
Lock_Display (Display);
begin
----Send the request.
Cid := (Id => X_Alloc_Id (Display));
Put_X_Create_Glyph_Cursor_Request
(Display, (Kind => Create_Glyph_Cursor,
Length => X_Create_Glyph_Cursor_Request'Size / 32,
Pad => 0,
Cursor => Cid,
Source => Source_Font,
Mask => Mask_Font,
Source_Char => U_Short (Source_Char),
Mask_Char => U_Short (Mask_Char),
Fore_Red => Foreground.Red,
Fore_Green => Foreground.Green,
Fore_Blue => Foreground.Blue,
Back_Red => Background.Red,
Back_Green => Background.Green,
Back_Blue => Background.Blue));
----Catch exceptions.
exception
when others =>
Unlock_Display (Display);
raise;
end;
----Unlock; sync; return new cursor.
Unlock_Display (Display);
Sync_Handle (Display);
return Cid;
end X_Create_Glyph_Cursor;
--\x0c
function X_Create_Pixmap_Cursor (Display : X_Display;
Source : X_Pixmap;
Mask : X_Pixmap;
Foreground : X_Color;
Background : X_Color;
X : U_Short;
Y : U_Short) return X_Cursor is
Cid : X_Cursor;
begin
----Lock the display.
Lock_Display (Display);
begin
----Send the request.
Cid := (Id => X_Alloc_Id (Display));
Put_X_Create_Cursor_Request
(Display,
(Kind => Create_Cursor,
Length => X_Create_Cursor_Request'Size / 32,
Pad => 0,
Cursor => Cid,
Source => Source,
Mask => Mask,
Fore_Red => Foreground.Red,
Fore_Green => Foreground.Green,
Fore_Blue => Foreground.Blue,
Back_Red => Background.Red,
Back_Green => Background.Green,
Back_Blue => Background.Blue,
X => X,
Y => Y));
----Catch exceptions.
exception
when others =>
Unlock_Display (Display);
raise;
end;
----Unlock; sync; return new cursor.
Unlock_Display (Display);
Sync_Handle (Display);
return Cid;
end X_Create_Pixmap_Cursor;
--\x0c
procedure X_Define_Cursor (Display : X_Display;
Window : X_Window;
Cursor : X_Cursor) is
begin
----Lock the display.
Lock_Display (Display);
begin
----Send the request.
Put_X_Change_Window_Attributes_Request
(Display,
(Kind => Change_Window_Attributes,
Length => X_Change_Window_Attributes_Request'Size / 32 + 1,
Pad => 0,
Window => Window,
Value_Mask => (Cw_Cursor => True, others => False)),
4);
Put_X_Id (Display, Cursor.Id);
----Catch exceptions.
exception
when others =>
Unlock_Display (Display);
raise;
end;
----Unlock; sync; return.
Unlock_Display (Display);
Sync_Handle (Display);
end X_Define_Cursor;
--\x0c
procedure X_Free_Cursor (Display : X_Display;
Cursor : in out X_Cursor) is
begin
----Lock the display.
Lock_Display (Display);
begin
----Send the request.
Put_X_Free_Cursor_Request
(Display, (Kind => Free_Cursor,
Length => X_Free_Cursor_Request'Size / 32,
Pad => 0,
Id => Cursor));
Cursor := None_X_Cursor;
----Catch exceptions.
exception
when others =>
Unlock_Display (Display);
raise;
end;
----Unlock and return.
Unlock_Display (Display);
Sync_Handle (Display);
end X_Free_Cursor;
--\x0c
procedure X_Query_Best_Cursor (Display : X_Display;
Drawable : X_Drawable;
Width : U_Short;
Height : U_Short;
Best_Width : out U_Short;
Best_Height : out U_Short;
Status : out X_Status) is
begin
X_Query_Best_Size (Display, Cursor_Shape, Drawable, Width,
Height, Best_Width, Best_Height, Status);
end X_Query_Best_Cursor;
--\x0c
procedure X_Recolor_Cursor (Display : X_Display;
Cursor : X_Cursor;
Foreground : X_Color;
Background : X_Color) is
begin
----Lock the display.
Lock_Display (Display);
begin
----Send the request.
Put_X_Recolor_Cursor_Request
(Display, (Kind => Recolor_Cursor,
Length => X_Recolor_Cursor_Request'Size / 32,
Pad => 0,
Cursor => Cursor,
Fore_Red => Foreground.Red,
Fore_Green => Foreground.Green,
Fore_Blue => Foreground.Blue,
Back_Red => Background.Red,
Back_Green => Background.Green,
Back_Blue => Background.Blue));
----Catch exceptions.
exception
when others =>
Unlock_Display (Display);
raise;
end;
----Unlock; sync; and return.
Unlock_Display (Display);
Sync_Handle (Display);
end X_Recolor_Cursor;
--\x0c
procedure X_Undefine_Cursor (Display : X_Display;
Window : X_Window) is
begin
----Lock the display.
Lock_Display (Display);
begin
----Send the request.
Put_X_Change_Window_Attributes_Request
(Display,
(Kind => Change_Window_Attributes,
Length => X_Change_Window_Attributes_Request'Size / 32 + 1,
Pad => 0,
Window => Window,
Value_Mask => (Cw_Cursor => True, others => False)),
4);
Put_X_Id (Display, None_X_Cursor.Id);
----Catch exceptions.
exception
when others =>
Unlock_Display (Display);
raise;
end;
----Unlock; sync; and return.
Unlock_Display (Display);
Sync_Handle (Display);
end X_Undefine_Cursor;
--\x0c
end Xlbp_Cursor;
nblk1=c
nid=0
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tail 0x217006af4819781ec0bba 0x42a00088462063203