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EnigmA Amiga Run 1999 February
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EnigmA AMIGA RUN 34 (1999)(G.R. Edizioni)(IT)[!][issue 1999-02].iso
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editresp.h
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1999-01-01
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/*
* $XConsortium: EditresP.h,v 1.11 91/07/30 15:28:28 rws Exp $
*
* Copyright 1989 Massachusetts Institute of Technology
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of M.I.T. not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. M.I.T. makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
* 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.
*
* Author: Chris D. Peterson, MIT X Consortium
*/
/************************************************************
The Editres Protocol
The Client message sent to the application is:
ATOM = "ResEditor" --- RES_EDITOR_NAME
FORMAT = 32 --- RES_EDIT_SEND_EVENT_FORMAT
l[0] = timestamp
l[1] = command atom name
l[2] = ident of command.
l[3] = protocol version number to use.
The binary protocol has the following format:
Card8: 8-bit unsingned integer
Card16: 16-bit unsingned integer
Card32: 32-bit unsingned integer
Int16: 16-bit signed integer
Window: 32-bit value
Widget: 32-bit value
String8: ListOfCard8
[a][b][c] represent an exclusive list of choices.
All widgets are passed as a list of widgets, containing the
full instance heirarch of this widget. The hierarchy is ordered
from parent to child. Thus the first element of each list is
the root of the widget tree (this makes verifying that the widget
still exists, MUCH faster).
ListOfFoo comprises a list of things in the following format:
number: Card16
<number> things: ????
This is a synchronous protocol, every request MUST be followed by a
reply.
Request:
Serial Number: Card8
Op Code: Card8 - { SendWidgetTree = 0,
SetValues = 1,
GetResources = 2,
GetGeometry = 3,
FindChild = 4 }
Length: Card32
Data:
Reply:
Serial Number: Card8
Type: Card8 - { Formatted = 0,
Unformatted = 1,
ProtocolMismatch = 2
}
Length: Card32
Byte Order:
All Fields are MSB -> LSB
Data:
Formatted:
The data contains the reply information for the request as
specified below if the reply type is "Formatted". The return
values for the other reply types are shown below.
Unformatted:
Message: String8
ProtocolMismatch:
RequestedVersion: Card8
------------------------------------------------------------
SendWidgetTree:
--->
Number of Entries: Card16
Entry:
widget: ListOfWidgets
name: String8
class: String8
window: Card32
Send Widget Tree returns the fully specified list of widgets
for each widget in the tree. This is enough information to completely
reconstruct the entire widget heirarchy.
The window return value contains the Xid of the window currently
used by this widget. If the widget is unrealized then 0 is returned,
and if widget is a non-windowed object a value of 2 is returned.
SetValues:
name: String8
type: String8
value: String8
Number of Entries: Card16
Entry:
widget: ListOfWidgets
--->
Number of Entries: Card16
Entry:
widget: ListOfWidgets
message: String8
SetValues will allow the same resource to be set on a number of
widgets. This function will return an error message if the SetValues
request caused an Xt error.
GetResources:
Number of Entries: Card16
Entry
widget: ListOfWidgets:
---->
Number of Entries: Card16
Entry
Widget: ListOfWidgets:
Error: Bool
[ Message: String 8 ]
[ Number of Resources: Card16
Resource:
Kind: {normal, constraint}
Name: String8
Class: String8
Type: String8 ]
GetResource retrieves the kind, name, class and type for every
widget passed to it. If an error occured with the resource fetch
Error will be set to True for the given widget and a message
is returned rather than the resource info.
GetGeometry:
Number of Entries: Card16
Entry
Widget: ListOfWidgets:
---->
Number of Entries: Card16
Entry
Widget: ListOfWidgets:
Error: Bool
[ message: String 8 ]
[ mapped: Boolean
X: Int16
Y: Int16
Width: Card16
Height: Card16
BorderWidth: Card16 ]
GetGeometry retreives the mapping state, x, y, width, height
and border width for each widget specified. If an error occured
with the geometry fetch "Error" will be set to True for the given
widget and a message is returned rather than the geometry info.
X an Y corrospond to the root coordinates of the upper left corner
of the widget (outside the window border).
FindChild:
Widget: ListOfWidgets
X: Int16
Y: Int16
--->
Widget: ListOfWidgets
Find Child returns a descendent of the widget specified that
is at the root coordinates specified.
NOTE:
The returned widget is undefined if the point is contained in
two or more mapped widgets, or in two overlapping Rect objs.
************************************************************/
#include <X11/Intrinsic.h>
#include <X11/Xfuncproto.h>
#define XER_NBBY 8 /* number of bits in a byte */
#define BYTE_MASK 255
#define HEADER_SIZE 6
#define EDITRES_IS_OBJECT 2
#define EDITRES_IS_UNREALIZED 0
/*
* Format for atoms.
*/
#define EDITRES_FORMAT 8
#define EDITRES_SEND_EVENT_FORMAT 32
/*
* Atoms
*/
#define EDITRES_NAME "Editres"
#define EDITRES_COMMAND_ATOM "EditresCommand"
#define EDITRES_COMM_ATOM "EditresComm"
#define EDITRES_CLIENT_VALUE "EditresClientVal"
#define EDITRES_PROTOCOL_ATOM "EditresProtocol"
typedef enum { SendWidgetTree = 0, SetValues = 1, GetResources = 2,
GetGeometry = 3, FindChild = 4 } EditresCommand;
typedef enum {NormalResource = 0, ConstraintResource = 1} ResourceType;
/*
* The type of a resource identifier.
*/
typedef unsigned char ResIdent;
typedef enum {PartialSuccess= 0, Failure= 1, ProtocolMismatch= 2} EditResError;
typedef struct _WidgetInfo {
unsigned short num_widgets;
unsigned long * ids;
Widget real_widget;
} WidgetInfo;
typedef struct _ProtocolStream {
unsigned long size, alloc;
unsigned char *real_top, *top, *current;
} ProtocolStream;
/************************************************************
*
* Function definitions for reading and writing protocol requests.
*
************************************************************/
_XFUNCPROTOBEGIN
void _XEditResPutString8(), _XEditResPut8(), _XEditResPut16();
void _XEditResPut32(), _XEditResPutWidgetInfo(), _XEditResPutWidget();
void _XEditResResetStream();
Boolean _XEditResGet8(), _XEditResGet16(), _XEditResGetSigned16();
Boolean _XEditResGet32(), _XEditResGetString8(), _XEditResGetWidgetInfo();
_XFUNCPROTOEND