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#ifndef lint
static char *rcsid = "$Id: CanvasShel.c,v 1.7 1991/09/23 04:03:55 ishisone Rel $";
#endif
/*
* Copyright (c) 1990 Software Research Associates, Inc.
*
* 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 appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Software Research Associates not be
* used in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. Software Research
* Associates makes no representations about the suitability of this software
* for any purpose. It is provided "as is" without express or implied
* warranty.
*
* Author: Makoto Ishisone, Software Research Associates, Inc., Japan
*/
#include <X11/IntrinsicP.h>
#include <X11/StringDefs.h>
#include "CanvasSheP.h"
static XtResource resources[] = {
#define offset(field) XtOffset(CanvasShellWidget, canvasshell.field)
{ XtNcursor, XtCCursor, XtRCursor, sizeof(Cursor),
offset(cursor), XtRImmediate, (XtPointer)None },
{ XtNexposeCallback, XtCCallback, XtRCallback, sizeof(XtCallbackList),
offset(exposecallback), XtRCallback, (XtPointer)NULL },
{ XtNresizeCallback, XtCCallback, XtRCallback, sizeof(XtCallbackList),
offset(resizecallback), XtRCallback, (XtPointer)NULL },
#undef offset
};
static void Redisplay();
static void Realize();
static void Resize();
static Boolean SetValues();
CanvasShellClassRec canvasShellClassRec = {
{ /* core fields */
/* superclass */ (WidgetClass) &adoptedShellClassRec,
/* class_name */ "CanvasShell",
/* widget_size */ sizeof(CanvasShellRec),
/* class_initialize */ NULL,
/* class_part_initialize */ NULL,
/* class_inited */ FALSE,
/* initialize */ NULL,
/* initialize_hook */ NULL,
/* realize */ Realize,
/* actions */ NULL,
/* num_actions */ 0,
/* resources */ resources,
/* num_resources */ XtNumber(resources),
/* xrm_class */ NULLQUARK,
/* compress_motion */ TRUE,
/* compress_exposure */ TRUE,
/* compress_enterleave */ TRUE,
/* visible_interest */ FALSE,
/* destroy */ NULL,
/* resize */ Resize,
/* expose */ Redisplay,
/* set_values */ SetValues,
/* set_values_hook */ NULL,
/* set_values_almost */ XtInheritSetValuesAlmost,
/* get_values_hook */ NULL,
/* accept_focus */ NULL,
/* version */ XtVersion,
/* callback_private */ NULL,
/* tm_table */ NULL,
/* query_geometry */ XtInheritQueryGeometry,
/* display_accelerator */ XtInheritDisplayAccelerator,
/* extension */ NULL
},
{ /* Composite */
/* geometry_manager */ XtInheritGeometryManager,
/* change_managed */ XtInheritChangeManaged,
/* insert_child */ XtInheritInsertChild,
/* delete_child */ XtInheritDeleteChild,
/* extension */ NULL
},
{ /* Shell */
/* extension */ NULL
},
{ /* overrideShell fields */
/* extension */ NULL
},
{ /* AdoptedShell fields */
/* empty */ 0
},
{ /* canvasShell fields */
/* empty */ 0
}
};
WidgetClass canvasShellWidgetClass = (WidgetClass)&canvasShellClassRec;
/* ARGSUSED */
static void
Redisplay(w, event, region)
Widget w;
XEvent *event;
Region region;
{
CanvasShellWidget csw = (CanvasShellWidget)w;
XtCallCallbackList(w, csw->canvasshell.exposecallback, (XtPointer)event);
}
static void
Resize(w)
Widget w;
{
CanvasShellWidget csw = (CanvasShellWidget)w;
XtCallCallbackList(w, csw->canvasshell.resizecallback, (XtPointer)NULL);
}
static void
Realize(w, maskp, attr)
Widget w;
XtValueMask *maskp;
XSetWindowAttributes *attr;
{
CanvasShellWidget csw = (CanvasShellWidget)w;
if (csw->canvasshell.cursor != None) {
*maskp |= CWCursor;
attr->cursor = csw->canvasshell.cursor;
}
*maskp |= CWBitGravity;
attr->bit_gravity = NorthWestGravity;
(*canvasShellWidgetClass->core_class.superclass->core_class.realize)(w, maskp, attr);
}
/* ARGSUSED */
static Boolean
SetValues(cur, req, new, args, num_args)
Widget cur;
Widget req;
Widget new;
ArgList args;
Cardinal *num_args;
{
CanvasShellWidget csw = (CanvasShellWidget)new;
CanvasShellWidget old = (CanvasShellWidget)cur;
if (csw->canvasshell.cursor != old->canvasshell.cursor &&
XtIsRealized(new)) {
XDefineCursor(XtDisplay(new), XtWindow(new), csw->canvasshell.cursor);
}
return False;
}
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