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geoGeometry.c
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1992-10-06
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/* $XConsortium: Geometry.c,v 1.55 92/02/11 17:13:18 converse Exp */
/***********************************************************
Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts,
and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
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 appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the names of Digital or MIT not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
DIGITAL 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.
******************************************************************/
#include "IntrinsicI.h"
#include "ShellP.h"
#include "geoTattler.h"
int ResizeStuff = 0 ;
static void ClearRectObjAreas(r, old)
RectObj r;
XWindowChanges* old;
{
Widget pw = _XtWindowedAncestor((Widget)r);
int bw2;
bw2 = old->border_width << 1;
XClearArea( XtDisplay(pw), XtWindow(pw),
old->x, old->y,
old->width + bw2, old->height + bw2,
TRUE );
bw2 = r->rectangle.border_width << 1;
XClearArea( XtDisplay(pw), XtWindow(pw),
(int)r->rectangle.x, (int)r->rectangle.y,
(unsigned int)(r->rectangle.width + bw2),
(unsigned int)(r->rectangle.height + bw2),
TRUE );
}
/*
* Internal function used by XtMakeGeometryRequest and XtSetValues.
* Returns more data than the public interface. Does not convert
* XtGeometryDone to XtGeometryYes.
*
* clear_rect_obj - *** RETURNED ***
* TRUE if the rect obj has been cleared, false otherwise.
*/
XtGeometryResult
_XtMakeGeometryRequest (widget, request, reply, clear_rect_obj)
Widget widget;
XtWidgetGeometry *request, *reply;
Boolean * clear_rect_obj;
{
XtWidgetGeometry junk;
XtGeometryHandler manager;
XtGeometryResult returnCode;
Widget parent = widget->core.parent;
XtGeometryMask changeMask;
Boolean managed, parentRealized, rgm = False;
XWindowChanges changes;
*clear_rect_obj = FALSE;
_GeoPrintTrace(widget,
"\"%s\" is making a %sgeometry request to its parent \"%s\".\n",
XtName(widget),
((GMode (request) & XtCWQueryOnly))? "query only ":"",
(XtParent(widget))?XtName(XtParent(widget)):"Root");
_GeoTabTrace();
if (XtIsShell(widget)) {
ShellClassExtension ext;
for (ext = (ShellClassExtension)((ShellWidgetClass)XtClass(widget))
->shell_class.extension;
ext != NULL && ext->record_type != NULLQUARK;
ext = (ShellClassExtension)ext->next_extension);
if (ext != NULL) {
if ( ext->version == XtShellExtensionVersion
&& ext->record_size == sizeof(ShellClassExtensionRec)) {
manager = ext->root_geometry_manager;
rgm = True;
} else {
String params[1];
Cardinal num_params = 1;
params[0] = XtClass(widget)->core_class.class_name;
XtAppErrorMsg(XtWidgetToApplicationContext(widget),
"invalidExtension", "xtMakeGeometryRequest",
XtCXtToolkitError,
"widget class %s has invalid ShellClassExtension record",
params, &num_params);
}
} else {
XtAppErrorMsg(XtWidgetToApplicationContext(widget),
"internalError", "xtMakeGeometryRequest",
XtCXtToolkitError,
"internal error; ShellClassExtension is NULL",
NULL, NULL);
}
managed = True;
parentRealized = TRUE;
} else if (parent == NULL) {
XtAppErrorMsg(XtWidgetToApplicationContext(widget),
"invalidParent","xtMakeGeometryRequest",XtCXtToolkitError,
"non-shell has no parent in XtMakeGeometryRequest",
(String *)NULL, (Cardinal *)NULL);
} else /* not shell */ {
managed = XtIsManaged(widget);
if (XtIsComposite(parent)) {
parentRealized = XtIsRealized(parent);
manager = ((CompositeWidgetClass) (parent->core.widget_class))
->composite_class.geometry_manager;
} else if (managed) {
/* Should never happen - XtManageChildren should have checked */
XtAppErrorMsg(XtWidgetToApplicationContext(widget),
"invalidParent", "xtMakeGeometryRequest",
XtCXtToolkitError,
"XtMakeGeometryRequest - parent not composite",
(String *)NULL, (Cardinal *)NULL);
} else {
/* no need to waste time checking if parent is actually realized
* at this point; since the child is unmanaged we need to perform
* the configure iff the child is realized, so we dummy the
* parentRealized checks below.
*/
parentRealized = TRUE;
}
}
if (managed && manager == (XtGeometryHandler) NULL) {
XtErrorMsg("invalidGeometryManager","xtMakeGeometryRequest",
XtCXtToolkitError,
"XtMakeGeometryRequest - parent has no geometry manager",
(String *)NULL, (Cardinal *)NULL);
}
if (widget->core.being_destroyed) {
_GeoUnTabTrace();
_GeoPrintTrace(widget,
"It is being destroyed, just return XtGeometryNo.\n");
return XtGeometryNo;
}
/* see if requesting anything to change */
changeMask = 0;
if (request->request_mode & CWStackMode
&& request->stack_mode != XtSMDontChange) {
changeMask |= CWStackMode;
_GeoPrintTrace(widget,"Asking for a change in StackMode!\n");
if (request->request_mode & CWSibling) {
XtCheckSubclass(request->sibling, rectObjClass,
"XtMakeGeometryRequest");
changeMask |= CWSibling;
}
}
if (request->request_mode & CWX
&& widget->core.x != request->x) {
_GeoPrintTrace(widget,"Asking for a change in x: from %d to %d.\n",
widget->core.x, request->x);
changeMask |= CWX;
}
if (request->request_mode & CWY
&& widget->core.y != request->y) {
_GeoPrintTrace(widget,"Asking for a change in y: from %d to %d.\n",
widget->core.y, request->y);
changeMask |= CWY;
}
if (request->request_mode & CWWidth
&& widget->core.width != request->width) {
_GeoPrintTrace(widget,"Asking for a change in width: from %d to %d.\n",
widget->core.width, request->width);
changeMask |= CWWidth;
}
if (request->request_mode & CWHeight
&& widget->core.height != request->height) {
_GeoPrintTrace(widget,"Asking for a change in height: from %d to %d.\n",
widget->core.height, request->height);
changeMask |= CWHeight;
}
if (request->request_mode & CWBorderWidth
&& widget->core.border_width != request->border_width){
_GeoPrintTrace(widget,
"Asking for a change in border_width: from %d to %d.\n",
widget->core.border_width, request->border_width);
changeMask |= CWBorderWidth;
}
if (! changeMask) {
_GeoPrintTrace(widget,
"Asking for nothing new,\n");
_GeoUnTabTrace();
_GeoPrintTrace(widget,
"just return XtGeometryYes.\n");
return XtGeometryYes;
}
changeMask |= (request->request_mode & XtCWQueryOnly);
if ( !(changeMask & XtCWQueryOnly) && XtIsRealized(widget) ) {
/* keep record of the current geometry so we know what's changed */
changes.x = widget->core.x ;
changes.y = widget->core.y ;
changes.width = widget->core.width ;
changes.height = widget->core.height ;
changes.border_width = widget->core.border_width ;
}
if (!managed || !parentRealized) {
if (!managed) {
_GeoPrintTrace(widget,"\"%s\" is not managed yet.\n",XtName(widget));
}
if (!parentRealized) {
_GeoPrintTrace(widget,"Parent \"%s\" is not realized yet.\n",
(XtParent(widget))?XtName(XtParent(widget)):"Root");
}
/* Don't get parent's manager involved--assume the answer is yes */
if (changeMask & XtCWQueryOnly) {
/* He was just asking, don't change anything, just tell him yes */
_GeoPrintTrace(widget,"QueryOnly request\n");
_GeoUnTabTrace();
_GeoPrintTrace(widget,"just return XtGeometryYes.\n");
return XtGeometryYes;
} else {
_GeoPrintTrace(widget,"Copy values from request to widget.\n");
/* copy values from request to widget */
if (request->request_mode & CWX)
widget->core.x = request->x;
if (request->request_mode & CWY)
widget->core.y = request->y;
if (request->request_mode & CWWidth)
widget->core.width = request->width;
if (request->request_mode & CWHeight)
widget->core.height = request->height;
if (request->request_mode & CWBorderWidth)
widget->core.border_width = request->border_width;
if (!parentRealized) {
_GeoUnTabTrace();
_GeoPrintTrace(widget,"and return XtGeometryYes.\n");
return XtGeometryYes;
}
else returnCode = XtGeometryYes;
}
} else {
/* go ask the widget's geometry manager */
_GeoPrintTrace(widget,"Go ask the parent geometry manager.\n");
if (reply == (XtWidgetGeometry *) NULL) {
returnCode = (*manager)(widget, request, &junk);
} else {
returnCode = (*manager)(widget, request, reply);
}
}
/*
* If Unrealized, not a XtGeometryYes, or a query-only then we are done.
*/
if ((returnCode != XtGeometryYes) ||
(changeMask & XtCWQueryOnly) || !XtIsRealized(widget)) {
switch(returnCode){
case XtGeometryNo:
_GeoUnTabTrace();
_GeoPrintTrace(widget,"\"%s\" returns XtGeometryNo.\n",
(XtParent(widget))?XtName(XtParent(widget)):"Root");
/* check for no change */
break ;
case XtGeometryDone:
_GeoUnTabTrace();
_GeoPrintTrace(widget,"\"%s\" returns XtGeometryDone.\n",
(XtParent(widget))?XtName(XtParent(widget)):"Root");
/* check for no change in queryonly */
break ;
case XtGeometryAlmost:
_GeoUnTabTrace();
_GeoPrintTrace(widget,"\"%s\" returns XtGeometryAlmost.\n",
(XtParent(widget))?XtName(XtParent(widget)):"Root");
_GeoTabTrace();
_GeoPrintTrace(widget,"Proposal: width %d height %d.\n",
(reply)?reply->width:junk.width,
(reply)?reply->height:junk.height);
_GeoUnTabTrace();
/* check for no change */
break ;
case XtGeometryYes:
if (changeMask & XtCWQueryOnly) {
_GeoPrintTrace(widget,"QueryOnly specified, no configuration.\n");
}
if (!XtIsRealized(widget)) {
_GeoPrintTrace(widget,"\"%s\" not realized, no configuration.\n",
XtName(widget));
}
_GeoUnTabTrace();
_GeoPrintTrace(widget,"\"%s\" returns XtGeometryYes.\n",
(XtParent(widget))?XtName(XtParent(widget)):"Root");
break ;
}
return returnCode;
}
_GeoUnTabTrace();
_GeoPrintTrace(widget,"\"%s\" returns XtGeometryYes.\n",
(XtParent(widget))?XtName(XtParent(widget)):"Root");
if (XtIsWidget(widget)) { /* reconfigure the window (if needed) */
if (rgm) return returnCode;
if (changes.x != widget->core.x) {
changeMask |= CWX;
changes.x = widget->core.x;
}
if (changes.y != widget->core.y) {
changeMask |= CWY;
changes.y = widget->core.y;
}
if (changes.width != widget->core.width) {
changeMask |= CWWidth;
changes.width = widget->core.width;
}
if (changes.height != widget->core.height) {
changeMask |= CWHeight;
changes.height = widget->core.height;
}
if (changes.border_width != widget->core.border_width) {
changeMask |= CWBorderWidth;
changes.border_width = widget->core.border_width;
}
if (changeMask & CWStackMode) {
changes.stack_mode = request->stack_mode;
if (changeMask & CWSibling)
changes.sibling = XtWindow(request->sibling);
}
if (changeMask) {
_GeoPrintTrace(widget,"XConfigure \"%s\"'s window.\n",XtName(widget));
} else {
_GeoPrintTrace(widget,"No window configuration needed for \"%s\".\n",
XtName(widget));
}
XConfigureWindow(XtDisplay(widget), XtWindow(widget),
changeMask, &changes);
}
else { /* RectObj child of realized Widget */
*clear_rect_obj = TRUE;
_GeoPrintTrace(widget,"ClearRectObj on \"%s\".\n",XtName(widget));
ClearRectObjAreas((RectObj)widget, &changes);
}
return returnCode;
} /* _XtMakeGeometryRequest */
/* Public routines */
XtGeometryResult XtMakeGeometryRequest (widget, request, reply)
Widget widget;
XtWidgetGeometry *request, *reply;
{
Boolean junk;
XtGeometryResult returnCode;
returnCode = _XtMakeGeometryRequest(widget, request, reply, &junk);
return ((returnCode == XtGeometryDone) ? XtGeometryYes : returnCode);
}
#if NeedFunctionPrototypes
XtGeometryResult XtMakeResizeRequest(
Widget widget,
_XtDimension width,
_XtDimension height,
Dimension *replyWidth,
Dimension *replyHeight
)
#else
XtGeometryResult XtMakeResizeRequest
(widget, width, height, replyWidth, replyHeight)
Widget widget;
Dimension width, height;
Dimension *replyWidth, *replyHeight;
#endif
{
XtWidgetGeometry request, reply;
XtGeometryResult r;
request.request_mode = CWWidth | CWHeight;
request.width = width;
request.height = height;
r = XtMakeGeometryRequest(widget, &request, &reply);
if (replyWidth != NULL)
if (r == XtGeometryAlmost && reply.request_mode & CWWidth)
*replyWidth = reply.width;
else
*replyWidth = width;
if (replyHeight != NULL)
if (r == XtGeometryAlmost && reply.request_mode & CWHeight)
*replyHeight = reply.height;
else
*replyHeight = height;
return r;
} /* XtMakeResizeRequest */
void XtResizeWindow(w)
Widget w;
{
if (XtIsRealized(w)) {
XWindowChanges changes;
changes.width = w->core.width;
changes.height = w->core.height;
changes.border_width = w->core.border_width;
XConfigureWindow(XtDisplay(w), XtWindow(w),
(unsigned) CWWidth | CWHeight | CWBorderWidth, &changes);
}
} /* XtResizeWindow */
#if NeedFunctionPrototypes
void XtConfigureWidget(
Widget w,
_XtPosition x,
_XtPosition y,
_XtDimension width,
_XtDimension height,
_XtDimension borderWidth
)
#else
void XtConfigureWidget(w, x, y, width, height, borderWidth)
Widget w;
Position x, y;
Dimension width, height, borderWidth;
#endif
{
XWindowChanges changes, old;
Cardinal mask = 0;
_GeoPrintTrace(w,"\"%s\" is being configured by its parent \"%s\"\n",
XtName(w), XtName(XtParent(w)));
_GeoTabTrace();
if ((old.x = w->core.x) != x) {
_GeoPrintTrace(w,"x move from %d to %d\n",w->core.x, x);
changes.x = w->core.x = x;
mask |= CWX;
}
if ((old.y = w->core.y) != y) {
_GeoPrintTrace(w,"y move from %d to %d\n",w->core.y, y);
changes.y = w->core.y = y;
mask |= CWY;
}
if ((old.width = w->core.width) != width) {
_GeoPrintTrace(w,"width move from %d to %d\n",w->core.width, width);
changes.width = w->core.width = width;
mask |= CWWidth;
}
if ((old.height = w->core.height) != height) {
_GeoPrintTrace(w,"height move from %d to %d\n",w->core.height, height);
changes.height = w->core.height = height;
mask |= CWHeight;
}
if ((old.border_width = w->core.border_width) != borderWidth) {
_GeoPrintTrace(w,"border_width move from %d to %d\n",
w->core.border_width,borderWidth );
changes.border_width = w->core.border_width = borderWidth;
mask |= CWBorderWidth;
}
if (mask != 0) {
if (XtIsRealized(w)) {
if (XtIsWidget(w)) {
_GeoPrintTrace(w,"XConfigure \"%s\"'s window\n",XtName(w));
XConfigureWindow(XtDisplay(w), XtWindow(w), mask, &changes);
}
else {
_GeoPrintTrace(w,"ClearRectObj called on \"%s\"\n",XtName(w));
ClearRectObjAreas((RectObj)w, &old);
}
} else {
_GeoPrintTrace(w,"\"%s\" not Realized\n",XtName(w));
}
if ((mask & (CWWidth | CWHeight)) &&
XtClass(w)->core_class.resize != (XtWidgetProc) NULL) {
_GeoPrintTrace(w,"Resize proc is called.\n");
if (ResizeStuff == (int)w) ResizeStuff = 0;
(*(w->core.widget_class->core_class.resize))(w);
} else {
_GeoPrintTrace(w,"Resize proc is not called.\n");
}
} else {
_GeoPrintTrace(w,"No change in configuration\n");
}
_GeoUnTabTrace();
} /* XtConfigureWidget */
#if NeedFunctionPrototypes
void XtResizeWidget(
Widget w,
_XtDimension width,
_XtDimension height,
_XtDimension borderWidth
)
#else
void XtResizeWidget(w, width, height, borderWidth)
Widget w;
Dimension width, height, borderWidth;
#endif
{
XtConfigureWidget(w, w->core.x, w->core.y, width, height, borderWidth);
} /* XtResizeWidget */
#if NeedFunctionPrototypes
void XtMoveWidget(
Widget w,
_XtPosition x,
_XtPosition y
)
#else
void XtMoveWidget(w, x, y)
Widget w;
Position x, y;
#endif
{
XtConfigureWidget(w, x, y, w->core.width, w->core.height,
w->core.border_width);
} /* XtMoveWidget */
#if NeedFunctionPrototypes
void XtTranslateCoords(
register Widget w,
_XtPosition x,
_XtPosition y,
register Position *rootx, /* return */
register Position *rooty /* return */
)
#else
void XtTranslateCoords(w, x, y, rootx, rooty)
register Widget w;
Position x, y;
register Position *rootx, *rooty; /* return */
#endif
{
Position garbagex, garbagey;
Widget passed = w;
if (rootx == NULL) rootx = &garbagex;
if (rooty == NULL) rooty = &garbagey;
*rootx = x;
*rooty = y;
for (; w != NULL && ! XtIsShell(w); w = w->core.parent) {
*rootx += w->core.x + w->core.border_width;
*rooty += w->core.y + w->core.border_width;
}
if (w == NULL)
XtAppWarningMsg(XtWidgetToApplicationContext(passed),
"invalidShell","xtTranslateCoords",XtCXtToolkitError,
"Widget has no shell ancestor",
(String *)NULL, (Cardinal *)NULL);
else {
Position x, y;
extern void _XtShellGetCoordinates();
_XtShellGetCoordinates( w, &x, &y );
*rootx += x + w->core.border_width;
*rooty += y + w->core.border_width;
}
}
XtGeometryResult XtQueryGeometry(widget, intended, reply)
Widget widget;
register XtWidgetGeometry *intended; /* parent's changes; may be NULL */
XtWidgetGeometry *reply; /* child's preferred geometry; never NULL */
{
XtWidgetGeometry null_intended;
XtGeometryHandler query = XtClass(widget)->core_class.query_geometry;
XtGeometryResult result;
_GeoPrintTrace(widget,"\"%s\" is asking its preferred geometry to \"%s\".\n",
(XtParent(widget))?XtName(XtParent(widget)):"Root",
XtName(widget));
_GeoTabTrace();
reply->request_mode = 0;
if (query != NULL) {
if (intended == NULL) {
null_intended.request_mode = 0;
intended = &null_intended;
_GeoPrintTrace(widget,"without any constraint.\n");
} else {
_GeoPrintTrace(widget,"with the following constraints:\n");
if (intended->request_mode & CWX) {
_GeoPrintTrace(widget," x = %d\n",intended->x);
}
if (intended->request_mode & CWY) {
_GeoPrintTrace(widget," y = %d\n",intended->y);
}
if (intended->request_mode & CWWidth) {
_GeoPrintTrace(widget," width = %d\n",intended->width);
}
if (intended->request_mode & CWHeight) {
_GeoPrintTrace(widget," height = %d\n",intended->height);
}
if (intended->request_mode & CWBorderWidth) {
_GeoPrintTrace(widget," border_width = %d\n",intended->border_width);
}
}
result = (*query) (widget, intended, reply);
}
else {
_GeoPrintTrace(widget,"\"%s\" has no QueryGeometry proc, return the current state\n",XtName(widget));
result = XtGeometryYes;
}
#define FillIn(mask, field) \
if (!(reply->request_mode & mask)) {\
reply->field = widget->core.field;\
_GeoPrintTrace(widget," using core %s = %d.\n","field",\
widget->core.field);\
} else {\
_GeoPrintTrace(widget," replied %s = %d\n","field",\
reply->field);\
}
FillIn(CWX, x);
FillIn(CWY, y);
FillIn(CWWidth, width);
FillIn(CWHeight, height);
FillIn(CWBorderWidth, border_width);
_GeoUnTabTrace();
#undef FillIn
if (!reply->request_mode & CWStackMode) reply->stack_mode = XtSMDontChange;
_GeoPrintTrace(widget,"\"%s\" returns %s to \"%s\".\n",
XtName(widget),
(result == XtGeometryYes)?"XtGeometryYes":
((result == XtGeometryNo)?"XtGeometryNo":
"XtGeometryAlmost"),
(XtParent(widget))?XtName(XtParent(widget)):"Root");
return result;
}