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-rw-r--r--libXaw/src/SimpleMenu.c3660
1 files changed, 1830 insertions, 1830 deletions
diff --git a/libXaw/src/SimpleMenu.c b/libXaw/src/SimpleMenu.c
index cfde9df29..0152a8560 100644
--- a/libXaw/src/SimpleMenu.c
+++ b/libXaw/src/SimpleMenu.c
@@ -1,1830 +1,1830 @@
-/*
-Copyright 1989, 1994, 1998 The Open Group
-
-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.
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of The Open Group shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from The Open Group.
- */
-
-/*
- * SimpleMenu.c - Source code file for SimpleMenu widget.
- *
- * Date: April 3, 1989
- *
- * By: Chris D. Peterson
- * MIT X Consortium
- * kit@expo.lcs.mit.edu
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <stdio.h>
-#include <X11/IntrinsicP.h>
-#include <X11/StringDefs.h>
-#include <X11/Xmu/Initer.h>
-#include <X11/Xmu/SysUtil.h>
-#include <X11/Xaw/Cardinals.h>
-#include <X11/Xaw/SimpleMenP.h>
-#include <X11/Xaw/SmeBSBP.h>
-#include <X11/Xaw/XawInit.h>
-#include "Private.h"
-
-#define streq(a, b) (strcmp((a), (b)) == 0)
-
-#define ForAllChildren(smw, childP) \
-for ((childP) = (SmeObject *)(smw)->composite.children; \
- (childP) < (SmeObject *)((smw)->composite.children \
- + (smw)->composite.num_children); \
- (childP)++)
-
-#ifndef OLDXAW
-#define SMW_UNMAPPING 0x01
-#define SMW_POPLEFT 0x02
-#endif
-
-/*
- * Class Methods
- */
-static void XawSimpleMenuChangeManaged(Widget);
-static void XawSimpleMenuClassInitialize(void);
-static void XawSimpleMenuClassPartInitialize(WidgetClass);
-static XtGeometryResult XawSimpleMenuGeometryManager(Widget, XtWidgetGeometry*,
- XtWidgetGeometry*);
-static void XawSimpleMenuInitialize(Widget, Widget, ArgList, Cardinal*);
-static void XawSimpleMenuRealize(Widget, XtValueMask*, XSetWindowAttributes*);
-static void XawSimpleMenuRedisplay(Widget, XEvent*, Region);
-static void XawSimpleMenuResize(Widget);
-static Boolean XawSimpleMenuSetValues(Widget, Widget, Widget,
- ArgList, Cardinal*);
-static Boolean XawSimpleMenuSetValuesHook(Widget, ArgList, Cardinal*);
-#ifndef OLDXAW
-static void PopupSubMenu(SimpleMenuWidget);
-static void PopdownSubMenu(SimpleMenuWidget);
-static void PopupCB(Widget, XtPointer, XtPointer);
-#endif
-
-/*
- * Prototypes
- */
-static void AddPositionAction(XtAppContext, XPointer);
-static void CalculateNewSize(Widget, Dimension*, Dimension*);
-static void ChangeCursorOnGrab(Widget, XtPointer, XtPointer);
-static void CreateLabel(Widget);
-static SmeObject DoGetEventEntry(Widget, int, int);
-static Widget FindMenu(Widget, String);
-static SmeObject GetEventEntry(Widget, XEvent*);
-static void Layout(Widget, Dimension*, Dimension*);
-static void MakeResizeRequest(Widget);
-static void MakeSetValuesRequest(Widget, unsigned int, unsigned int);
-static void MoveMenu(Widget, int, int);
-static void PositionMenu(Widget, XPoint*);
-
-/*
- * Actions
- */
-static void Highlight(Widget, XEvent*, String*, Cardinal*);
-static void Notify(Widget, XEvent*, String*, Cardinal*);
-#ifndef OLDXAW
-static void Popdown(Widget, XEvent*, String*, Cardinal*);
-#endif
-static void PositionMenuAction(Widget, XEvent*, String*, Cardinal*);
-static void Unhighlight(Widget, XEvent*, String*, Cardinal*);
-
-/*
- * Initialization
- */
-#define offset(field) XtOffsetOf(SimpleMenuRec, simple_menu.field)
-
-static XtResource resources[] = {
- /* label */
- {
- XtNlabel,
- XtCLabel,
- XtRString,
- sizeof(String),
- offset(label_string),
- XtRString,
- NULL
- },
- {
- XtNlabelClass,
- XtCLabelClass,
- XtRPointer,
- sizeof(WidgetClass),
- offset(label_class),
- XtRImmediate,
- NULL
- },
-
- /* layout */
- {
- XtNrowHeight,
- XtCRowHeight,
- XtRDimension,
- sizeof(Dimension),
- offset(row_height),
- XtRImmediate,
- (XtPointer)0
- },
- {
- XtNtopMargin,
- XtCVerticalMargins,
- XtRDimension,
- sizeof(Dimension),
- offset(top_margin),
- XtRImmediate,
- (XtPointer)0
- },
- {
- XtNbottomMargin,
- XtCVerticalMargins,
- XtRDimension,
- sizeof(Dimension),
- offset(bottom_margin),
- XtRImmediate,
- (XtPointer)0
- },
-#ifndef OLDXAW
- {
- XtNleftMargin,
- XtCHorizontalMargins,
- XtRDimension,
- sizeof(Dimension),
- offset(left_margin),
- XtRImmediate,
- (XtPointer)0
- },
- {
- XtNrightMargin,
- XtCHorizontalMargins,
- XtRDimension,
- sizeof(Dimension),
- offset(right_margin),
- XtRImmediate,
- (XtPointer)0
- },
-#endif
-
- /* misc */
- {
- XtNallowShellResize,
- XtCAllowShellResize,
- XtRBoolean,
- sizeof(Boolean),
- XtOffsetOf(SimpleMenuRec, shell.allow_shell_resize),
- XtRImmediate,
- (XtPointer)True
- },
- {
- XtNcursor,
- XtCCursor,
- XtRCursor,
- sizeof(Cursor),
- offset(cursor),
- XtRImmediate,
- (XtPointer)None
- },
- {
- XtNmenuOnScreen,
- XtCMenuOnScreen,
- XtRBoolean,
- sizeof(Boolean),
- offset(menu_on_screen),
- XtRImmediate,
- (XtPointer)True
- },
- {
- XtNpopupOnEntry,
- XtCPopupOnEntry,
- XtRWidget,
- sizeof(Widget),
- offset(popup_entry),
- XtRWidget,
- NULL
- },
- {
- XtNbackingStore,
- XtCBackingStore,
- XtRBackingStore,
- sizeof(int),
- offset(backing_store),
- XtRImmediate,
- (XtPointer)(Always + WhenMapped + NotUseful)
- },
-#ifndef OLDXAW
- {
- XawNdisplayList,
- XawCDisplayList,
- XawRDisplayList,
- sizeof(XawDisplayList*),
- offset(display_list),
- XtRImmediate,
- NULL
- },
-#endif
-};
-#undef offset
-
-static char defaultTranslations[] =
-"<Enter>:" "highlight()\n"
-"<Leave>:" "unhighlight()\n"
-"<BtnMotion>:" "highlight()\n"
-#ifndef OLDXAW
-"<BtnUp>:" "popdown() notify() unhighlight()\n"
-#else
-"<BtnUp>:" "MenuPopdown() notify() unhighlight()\n"
-#endif
-;
-
-static XtActionsRec actionsList[] =
-{
- {"notify", Notify},
- {"highlight", Highlight},
- {"unhighlight", Unhighlight},
-#ifndef OLDXAW
- {"popdown", Popdown},
- {"set-values", XawSetValuesAction},
- {"get-values", XawGetValuesAction},
- {"declare", XawDeclareAction},
- {"call-proc", XawCallProcAction},
-#endif
-};
-
-static CompositeClassExtensionRec extension_rec = {
- NULL, /* next_extension */
- NULLQUARK, /* record_type */
- XtCompositeExtensionVersion, /* version */
- sizeof(CompositeClassExtensionRec), /* record_size */
- True, /* accepts_objects */
-};
-
-#define Superclass (&overrideShellClassRec)
-SimpleMenuClassRec simpleMenuClassRec = {
- /* core */
- {
- (WidgetClass)Superclass, /* superclass */
- "SimpleMenu", /* class_name */
- sizeof(SimpleMenuRec), /* size */
- XawSimpleMenuClassInitialize, /* class_initialize */
- XawSimpleMenuClassPartInitialize, /* class_part_initialize */
- False, /* class_inited */
- XawSimpleMenuInitialize, /* initialize */
- NULL, /* initialize_hook */
- XawSimpleMenuRealize, /* realize */
- actionsList, /* actions */
- XtNumber(actionsList), /* num_actions */
- resources, /* resources */
- XtNumber(resources), /* num_resources */
- NULLQUARK, /* xrm_class */
- True, /* compress_motion */
- True, /* compress_exposure */
- True, /* compress_enterleave */
- False, /* visible_interest */
- NULL, /* destroy */
- XawSimpleMenuResize, /* resize */
- XawSimpleMenuRedisplay, /* expose */
- XawSimpleMenuSetValues, /* set_values */
- XawSimpleMenuSetValuesHook, /* set_values_hook */
- XtInheritSetValuesAlmost, /* set_values_almost */
- NULL, /* get_values_hook */
- NULL, /* accept_focus */
- XtVersion, /* intrinsics version */
- NULL, /* callback offsets */
- defaultTranslations, /* tm_table */
- NULL, /* query_geometry */
- NULL, /* display_accelerator */
- NULL, /* extension */
- },
- /* composite */
- {
- XawSimpleMenuGeometryManager, /* geometry_manager */
- XawSimpleMenuChangeManaged, /* change_managed */
- XtInheritInsertChild, /* insert_child */
- XtInheritDeleteChild, /* delete_child */
- NULL, /* extension */
- },
- /* shell */
- {
- NULL, /* extension */
- },
- /* override */
- {
- NULL, /* extension */
- },
- /* simple_menu */
- {
- NULL, /* extension */
- },
-};
-
-WidgetClass simpleMenuWidgetClass = (WidgetClass)&simpleMenuClassRec;
-
-/*
- * Implementation
- */
-/*
- * Function:
- * XawSimpleMenuClassInitialize
- *
- * Description:
- * Class Initialize routine, called only once.
- */
-static void
-XawSimpleMenuClassInitialize(void)
-{
- XawInitializeWidgetSet();
- XtAddConverter(XtRString, XtRBackingStore, XmuCvtStringToBackingStore,
- NULL, 0);
- XtSetTypeConverter(XtRBackingStore, XtRString, XmuCvtBackingStoreToString,
- NULL, 0, XtCacheNone, NULL);
- XmuAddInitializer(AddPositionAction, NULL);
-}
-
-/*
- * Function:
- * XawSimpleMenuClassPartInitialize
- * Arguments: wc - the widget class of the subclass.
- *
- * Description:
- * Class Part Initialize routine, called for every subclass. Makes
- * sure that the subclasses pick up the extension record.
- */
-static void
-XawSimpleMenuClassPartInitialize(WidgetClass wc)
-{
- SimpleMenuWidgetClass smwc = (SimpleMenuWidgetClass)wc;
-
- /*
- * Make sure that our subclass gets the extension rec too
- */
- extension_rec.next_extension = smwc->composite_class.extension;
- smwc->composite_class.extension = (XtPointer) &extension_rec;
-}
-
-/*
- * Function:
- * XawSimpleMenuInitialize
- *
- * Parameters:
- * request - widget requested by the argument list
- * cnew - new widget with both resource and non resource values
- *
- * Description:
- * Initializes the simple menu widget.
- */
-/*ARGSUSED*/
-static void
-XawSimpleMenuInitialize(Widget request, Widget cnew,
- ArgList args, Cardinal *num_args)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)cnew;
- Dimension width, height;
-
- XmuCallInitializers(XtWidgetToApplicationContext(cnew));
-
- if (smw->simple_menu.label_class == NULL)
- smw->simple_menu.label_class = smeBSBObjectClass;
-
- smw->simple_menu.label = NULL;
- smw->simple_menu.entry_set = NULL;
- smw->simple_menu.recursive_set_values = False;
-#ifndef OLDXAW
- smw->simple_menu.sub_menu = NULL;
- smw->simple_menu.state = 0;
-
- XtAddCallback(cnew, XtNpopupCallback, PopupCB, NULL);
-#endif
-
- if (smw->simple_menu.label_string != NULL)
- CreateLabel(cnew);
-
- width = height = 0;
- CalculateNewSize(cnew, &width, &height);
-
- smw->simple_menu.menu_width = True;
-
- if (XtWidth(smw) == 0) {
- smw->simple_menu.menu_width = False;
- XtWidth(smw) = width;
- }
-
- smw->simple_menu.menu_height = True;
-
- if (XtHeight(smw) == 0) {
- smw->simple_menu.menu_height = False;
- XtHeight(smw) = height;
- }
-
- /*
- * Add a popup_callback routine for changing the cursor
- */
- XtAddCallback(cnew, XtNpopupCallback, ChangeCursorOnGrab, NULL);
-}
-
-/*
- * Function:
- * XawSimpleMenuRedisplay
- *
- * Parameters:
- * w - simple menu widget
- * event - X event that caused this redisplay
- * region - region the needs to be repainted
- *
- * Description:
- * Redisplays the contents of the widget.
- */
-/*ARGSUSED*/
-static void
-XawSimpleMenuRedisplay(Widget w, XEvent *event, Region region)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
- SmeObject *entry;
- SmeObjectClass cclass;
-
- if (region == NULL)
- XClearWindow(XtDisplay(w), XtWindow(w));
-
-#ifndef OLDXAW
- if (smw->simple_menu.display_list)
- XawRunDisplayList(w, smw->simple_menu.display_list, event, region);
-#endif
-
- /*
- * Check and Paint each of the entries - including the label
- */
- ForAllChildren(smw, entry) {
- if (!XtIsManaged((Widget)*entry))
- continue;
-
- if (region != NULL)
- switch(XRectInRegion(region, XtX(*entry),XtY(*entry),
- XtWidth(*entry), XtHeight(*entry))) {
- case RectangleIn:
- case RectanglePart:
- break;
- default:
- continue;
- }
-
- cclass = (SmeObjectClass)(*entry)->object.widget_class;
-
- if (cclass->rect_class.expose != NULL)
- (cclass->rect_class.expose)((Widget)*entry, NULL, NULL);
- }
-}
-
-/*
- * Function:
- * XawSimpleMenuRealize
- *
- * Parameters:
- * w - simple menu widget
- * mask - value mask for the window to create
- * attrs - attributes for the window to create
- *
- * Description:
- * Realizes the widget.
- */
-static void
-XawSimpleMenuRealize(Widget w, XtValueMask *mask, XSetWindowAttributes *attrs)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
-#ifndef OLDXAW
- XawPixmap *pixmap;
-#endif
-
- attrs->cursor = smw->simple_menu.cursor;
- *mask |= CWCursor;
- if (smw->simple_menu.backing_store == Always ||
- smw->simple_menu.backing_store == NotUseful ||
- smw->simple_menu.backing_store == WhenMapped) {
- *mask |= CWBackingStore;
- attrs->backing_store = smw->simple_menu.backing_store;
- }
- else
- *mask &= ~CWBackingStore;
-
- (*Superclass->core_class.realize)(w, mask, attrs);
-
-#ifndef OLDXAW
- if (w->core.background_pixmap > XtUnspecifiedPixmap) {
- pixmap = XawPixmapFromXPixmap(w->core.background_pixmap, XtScreen(w),
- w->core.colormap, w->core.depth);
- if (pixmap && pixmap->mask)
- XawReshapeWidget(w, pixmap);
- }
-#endif
-}
-
-/*
- * Function:
- * XawSimpleMenuResize
- *
- * Parameters:
- * w - simple menu widget
- *
- * Description:
- * Handle the menu being resized.
- */
-static void
-XawSimpleMenuResize(Widget w)
-{
- if (!XtIsRealized(w))
- return;
-
- Layout(w, NULL, NULL);
-
- XawSimpleMenuRedisplay(w, NULL, NULL);
-}
-
-/*
- * Function:
- * XawSimpleMenuSetValues
- *
- * Parameters:
- * current - current state of the widget
- * request - what was requested
- * cnew - what the widget will become
- *
- * Description:
- * Relayout the menu when one of the resources is changed.
- */
-/*ARGSUSED*/
-static Boolean
-XawSimpleMenuSetValues(Widget current, Widget request, Widget cnew,
- ArgList args, Cardinal *num_args)
-{
- SimpleMenuWidget smw_old = (SimpleMenuWidget)current;
- SimpleMenuWidget smw_new = (SimpleMenuWidget)cnew;
- Boolean ret_val = False, layout = False;
-
- if (!XtIsRealized(current))
- return (False);
-
- if (!smw_new->simple_menu.recursive_set_values) {
- if (XtWidth(smw_new) != XtWidth(smw_old)) {
- smw_new->simple_menu.menu_width = XtWidth(smw_new) != 0;
- layout = True;
- }
- if (XtHeight(smw_new) != XtHeight(smw_old)) {
- smw_new->simple_menu.menu_height = XtHeight(smw_new) != 0;
- layout = True;
- }
- }
-
- if (smw_old->simple_menu.cursor != smw_new->simple_menu.cursor)
- XDefineCursor(XtDisplay(cnew), XtWindow(cnew),
- smw_new->simple_menu.cursor);
-
- if (smw_old->simple_menu.label_string !=smw_new->simple_menu.label_string) {
- if (smw_new->simple_menu.label_string == NULL) /* Destroy */
- XtDestroyWidget((Widget)smw_old->simple_menu.label);
- else if (smw_old->simple_menu.label_string == NULL) /* Create */
- CreateLabel(cnew);
- else { /* Change */
- Arg arglist[1];
-
- XtSetArg(arglist[0], XtNlabel, smw_new->simple_menu.label_string);
- XtSetValues((Widget)smw_new->simple_menu.label, arglist, ONE);
- }
- }
-
- if (smw_old->simple_menu.label_class != smw_new->simple_menu.label_class)
- XtAppWarning(XtWidgetToApplicationContext(cnew),
- "No Dynamic class change of the SimpleMenu Label.");
-
- if (smw_old->simple_menu.top_margin != smw_new->simple_menu.top_margin
- || smw_old->simple_menu.bottom_margin
- != smw_new->simple_menu.bottom_margin) {
- layout = True;
- ret_val = True;
- }
-
-#ifndef OLDXAW
- if (smw_old->core.background_pixmap != smw_new->core.background_pixmap) {
- XawPixmap *opix, *npix;
-
- opix = XawPixmapFromXPixmap(smw_old->core.background_pixmap,
- XtScreen(smw_old), smw_old->core.colormap,
- smw_old->core.depth);
- npix = XawPixmapFromXPixmap(smw_new->core.background_pixmap,
- XtScreen(smw_new), smw_new->core.colormap,
- smw_new->core.depth);
- if ((npix && npix->mask) || (opix && opix->mask))
- XawReshapeWidget(cnew, npix);
- }
-#endif
-
- if (layout)
- Layout(cnew, NULL, NULL);
-
- return (ret_val);
-}
-
-/*
- * Function:
- * XawSimpleMenuSetValuesHook
- *
- * Parameters:
- * w - menu widget
- * arglist - argument list passed to XtSetValues
- * num_args - number of args
- *
- * Description:
- * To handle a special case, this is passed the actual arguments.
- */
-static Boolean
-XawSimpleMenuSetValuesHook(Widget w, ArgList arglist, Cardinal *num_args)
-{
- Cardinal i;
- Dimension width, height;
-
- width = XtWidth(w);
- height = XtHeight(w);
-
- for (i = 0 ; i < *num_args ; i++) {
- if (streq(arglist[i].name, XtNwidth))
- width = (Dimension)arglist[i].value;
- if (streq(arglist[i].name, XtNheight))
- height = (Dimension) arglist[i].value;
- }
-
- if (width != XtWidth(w) || height != XtHeight(w))
- MakeSetValuesRequest(w, width, height);
-
- return (False);
-}
-
-/*
- * Geometry Management routines
- */
-/*
- * Function:
- * XawSimpleMenuGeometryManager
- *
- * Parameters:
- * w - Menu Entry making the request
- * request - requested new geometry
- * reply - the allowed geometry.
- *
- * Description:
- * This is the SimpleMenu Widget's Geometry Manager.
- *
- * Returns:
- * XtGeometry{Yes, No, Almost}
- */
-static XtGeometryResult
-XawSimpleMenuGeometryManager(Widget w, XtWidgetGeometry *request,
- XtWidgetGeometry *reply)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)XtParent(w);
- SmeObject entry = (SmeObject)w;
- XtGeometryMask mode = request->request_mode;
- XtGeometryResult answer;
- Dimension old_height, old_width;
-
- if (!(mode & CWWidth) && !(mode & CWHeight))
- return (XtGeometryNo);
-
- reply->width = request->width;
- reply->height = request->height;
-
- old_width = XtWidth(entry);
- old_height = XtHeight(entry);
-
- Layout(w, &reply->width, &reply->height);
-
- /*
- * Since we are an override shell and have no parent there is no one to
- * ask to see if this geom change is okay, so I am just going to assume
- * we can do whatever we want. If you subclass be very careful with this
- * assumption, it could bite you.
- *
- * Chris D. Peterson - Sept. 1989.
- */
- if ((!(mode & CWWidth) || reply->width == request->width)
- && (!(mode & CWHeight) || reply->height == request->height)) {
- if (mode & XtCWQueryOnly) { /* Actually perform the layout */
- XtWidth(entry) = old_width;
- XtHeight(entry) = old_height;
- }
- else
- Layout((Widget)smw, NULL, NULL);
- answer = XtGeometryDone;
- }
- else {
- XtWidth(entry) = old_width;
- XtHeight(entry) = old_height;
-
- if ((reply->width == request->width && !(mode & CWHeight))
- || (reply->height == request->height && !(mode & CWWidth))
- || (reply->width == request->width
- && reply->height == request->height))
- answer = XtGeometryNo;
- else {
- answer = XtGeometryAlmost;
- reply->request_mode = 0;
- if (reply->width != request->width)
- reply->request_mode |= CWWidth;
- if (reply->height != request->height)
- reply->request_mode |= CWHeight;
- }
- }
-
- return (answer);
-}
-
-/*
- * Function:
- * XawSimpleMenuChangeManaged
- *
- * Parameters:
- * w - simple menu widget
- *
- * Description:
- * Called whenever a new child is managed.
- */
-static void
-XawSimpleMenuChangeManaged(Widget w)
-{
- Layout(w, NULL, NULL);
-}
-
-/*
- * Global Action Routines
- *
- * These actions routines will be added to the application's
- * global action list
- */
-/*
- * Function:
- * PositionMenuAction
- *
- * Parameters:
- * w - a widget (no the simple menu widget)
- * event - the event that caused this action
- * params - parameters passed to the routine.
- * we expect the name of the menu here.
- * num_params - ""
- *
- * Description:
- * Positions the simple menu widget.
- */
-/*ARGSUSED*/
-static void
-PositionMenuAction(Widget w, XEvent *event,
- String *params, Cardinal *num_params)
-{
- Widget menu;
- XPoint loc;
-
- if (*num_params != 1) {
- XtAppWarning(XtWidgetToApplicationContext(w),
- "SimpleMenuWidget: position menu action expects "
- "only one parameter which is the name of the menu.");
- return;
- }
-
- if ((menu = FindMenu(w, params[0])) == NULL) {
- char error_buf[BUFSIZ];
-
- (void)XmuSnprintf(error_buf, sizeof(error_buf),
- "SimpleMenuWidget: could not find menu named %s.",
- params[0]);
- XtAppWarning(XtWidgetToApplicationContext(w), error_buf);
- return;
- }
-
- switch (event->type) {
- case ButtonPress:
- case ButtonRelease:
- loc.x = event->xbutton.x_root;
- loc.y = event->xbutton.y_root;
- PositionMenu(menu, &loc);
- break;
- case EnterNotify:
- case LeaveNotify:
- loc.x = event->xcrossing.x_root;
- loc.y = event->xcrossing.y_root;
- PositionMenu(menu, &loc);
- break;
- case MotionNotify:
- loc.x = event->xmotion.x_root;
- loc.y = event->xmotion.y_root;
- PositionMenu(menu, &loc);
- break;
- default:
- PositionMenu(menu, NULL);
- break;
- }
-}
-
-/*
- * Widget Action Routines
- */
-/*
- * Function:
- * Unhighlight
- *
- * Parameters:
- * w - simple menu widget
- * event - event that caused this action
- * params - not used
- * num_params - ""
- *
- * Description:
- * Unhighlights current entry.
- */
-/*ARGSUSED*/
-static void
-Unhighlight(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
- SmeObject entry = smw->simple_menu.entry_set;
-
- if (entry == NULL)
- return;
-
-#ifndef OLDXAW
- if (!smw->simple_menu.sub_menu)
-#endif
- {
- SmeObjectClass cclass;
-
- smw->simple_menu.entry_set = NULL;
- cclass = (SmeObjectClass)entry->object.widget_class;
- (cclass->sme_class.unhighlight)((Widget)entry);
- }
-}
-
-/*
- * Function:
- * Highlight
- *
- * Parameters:
- * w - simple menu widget
- * event - event that caused this action
- * params - not used
- * num_params - ""
- *
- * Description:
- * Highlights current entry.
- */
-/*ARGSUSED*/
-static void
-Highlight(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
- SmeObject entry;
-
- if (!XtIsSensitive(w))
- return;
-
- entry = GetEventEntry(w, event);
-
- if (entry == smw->simple_menu.entry_set)
- return;
-
-#ifndef OLDXAW
- if (!smw->simple_menu.sub_menu)
-#endif
- Unhighlight(w, event, params, num_params);
-
- if (entry == NULL)
- return;
-
- if (!XtIsSensitive((Widget)entry))
- return;
-
-#ifndef OLDXAW
- if (smw->simple_menu.sub_menu)
- PopdownSubMenu(smw);
-#endif
-
- Unhighlight(w, event, params, num_params);
-
-#ifndef OLDXAW
- if (!(smw->simple_menu.state & SMW_UNMAPPING))
-#endif
- {
- SmeObjectClass cclass;
-
- smw->simple_menu.entry_set = entry;
- cclass = (SmeObjectClass)entry->object.widget_class;
-
- (cclass->sme_class.highlight)((Widget)entry);
-
-#ifndef OLDXAW
- if (XtIsSubclass((Widget)entry, smeBSBObjectClass))
- PopupSubMenu(smw);
-#endif
- }
-}
-
-/*
- * Function:
- * Notify
- *
- * Parameters:
- * w - simple menu widget
- * event - event that caused this action
- * params - not used
- * num_params - ""
- *
- * Description:
- * Notify user of current entry.
- */
-/*ARGSUSED*/
-static void
-Notify(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- SmeObject entry;
- SmeObjectClass cclass;
-
- /* may be a propagated event from a sub menu, need to check it */
- if (XtWindow(w) != event->xany.window)
- return;
- entry = GetEventEntry(w, event);
- if (entry == NULL || !XtIsSensitive((Widget)entry))
- return;
-
- cclass = (SmeObjectClass) entry->object.widget_class;
- (cclass->sme_class.notify)((Widget)entry);
-}
-
-/*
- * Public Functions
- */
-/*
- * Function:
- * XawSimpleMenuAddGlobalActions
- *
- * Arguments:
- * app_con - appcontext
- *
- * Description:
- * Adds the global actions to the simple menu widget.
- */
-void
-XawSimpleMenuAddGlobalActions(XtAppContext app_con)
-{
- XtInitializeWidgetClass(simpleMenuWidgetClass);
- XmuCallInitializers(app_con);
-}
-
-/*
- * Function:
- * XawSimpleMenuGetActiveEntry
- *
- * Parameters:
- * w - smw widget
- *
- * Description:
- * Gets the currently active (set) entry.
- *
- * Returns:
- * The currently set entry or NULL if none is set
- */
-Widget
-XawSimpleMenuGetActiveEntry(Widget w)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
-
- return ((Widget)smw->simple_menu.entry_set);
-}
-
-/*
- * Function:
- * XawSimpleMenuClearActiveEntry
- *
- * Parameters:
- * w - smw widget
- *
- * Description:
- * Unsets the currently active (set) entry.
- */
-void
-XawSimpleMenuClearActiveEntry(Widget w)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
-
- smw->simple_menu.entry_set = NULL;
-}
-
-/*
- * Private Functions
- */
-/*
- * Function:
- * CreateLabel
- *
- * Parameters:
- * w - smw widget
- *
- * Description:
- * Creates the label object and makes sure it is the first child in
- * in the list.
- */
-static void
-CreateLabel(Widget w)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
- Widget *child, *next_child;
- int i;
- Arg args[2];
-
- if (smw->simple_menu.label_string == NULL ||
- smw->simple_menu.label != NULL) {
- XtAppWarning(XtWidgetToApplicationContext(w),
- "Xaw Simple Menu Widget: label string is NULL or "
- "label already exists, no label is being created.");
- return;
- }
-
- XtSetArg(args[0], XtNlabel, smw->simple_menu.label_string);
- XtSetArg(args[1], XtNjustify, XtJustifyCenter);
- smw->simple_menu.label = (SmeObject)
- XtCreateManagedWidget("menuLabel",
- smw->simple_menu.label_class, w, args, TWO);
-
- next_child = NULL;
- for (child = smw->composite.children + smw->composite.num_children,
- i = smw->composite.num_children; i > 0; i--, child--) {
- if (next_child != NULL)
- *next_child = *child;
- next_child = child;
- }
- *child = (Widget)smw->simple_menu.label;
-}
-
-/*
- * Function:
- * Layout
- *
- * Arguments:
- * w - See below
- * width_ret - returned width
- * height_ret - returned height
- *
- * Note:
- * if width == NULL || height == NULL then it assumes the you do not care
- * about the return values, and just want a relayout.
- *
- * if this is not the case then it will set width_ret and height_ret
- * to be width and height that the child would get if it were layed out
- * at this time.
- *
- * "w" can be the simple menu widget or any of its object children.
- */
-static void
-Layout(Widget w, Dimension *width_ret, Dimension *height_ret)
-{
- SmeObject current_entry;
- SimpleMenuWidget smw;
- Dimension width, height;
- Boolean allow_change_size;
- Widget kid;
- Cardinal i, count, n;
- int width_kid, height_kid, tmp_w, tmp_h;
- short vadd, hadd, x_ins, y_ins;
- Dimension *widths;
-
- height = 0;
-
- if (XtIsSubclass(w, simpleMenuWidgetClass)) {
- smw = (SimpleMenuWidget)w;
- current_entry = NULL;
- }
- else {
- smw = (SimpleMenuWidget)XtParent(w);
- current_entry = (SmeObject)w;
- }
-
- allow_change_size = (!XtIsRealized((Widget)smw)
- || smw->shell.allow_shell_resize);
-
- for (i = smw->simple_menu.label ? 1 : 0;
- i < smw->composite.num_children;
- i++) {
- XtWidgetGeometry preferred;
-
- kid = smw->composite.children[i];
- if (!XtIsManaged(kid))
- continue;
- if (smw->simple_menu.row_height != 0)
- XtHeight(kid) = smw->simple_menu.row_height;
- XtQueryGeometry(kid, NULL, &preferred);
- if (preferred.request_mode & CWWidth)
- XtWidth(kid) = preferred.width;
- }
-
- if (smw->simple_menu.label
- && XtIsManaged((Widget)smw->simple_menu.label)) {
- XtWidgetGeometry preferred;
-
- kid = (Widget)smw->simple_menu.label;
- XtQueryGeometry(kid, NULL, &preferred);
- if (preferred.request_mode & CWWidth)
- XtWidth(kid) = preferred.width;
- if (preferred.request_mode & CWHeight)
- XtHeight(kid) = preferred.height;
- }
-
- /* reset */
- if (!smw->simple_menu.menu_width)
- XtWidth(smw) = 0;
- if (!smw->simple_menu.menu_height)
- XtHeight(smw) = 0;
- if (!XtWidth(smw) || !XtHeight(smw))
- MakeResizeRequest((Widget)smw);
-
- widths = (Dimension *)XtMalloc(sizeof(Dimension));
-#ifndef OLDXAW
- hadd = smw->simple_menu.left_margin;
-#else
- hadd = 0;
-#endif
- vadd = smw->simple_menu.top_margin;
- if (smw->simple_menu.label)
- vadd += XtHeight(smw->simple_menu.label);
-
- count = 1;
- width = tmp_w = tmp_h = n = 0;
- height = vadd;
-
- for (i = smw->simple_menu.label ? 1 : 0;
- i < smw->composite.num_children;
- i++) {
- kid = smw->composite.children[i];
- if (!XtIsManaged(kid))
- continue;
- width_kid = XtWidth(kid);
- height_kid = XtHeight(kid);
-
- if (n && (height + height_kid + smw->simple_menu.bottom_margin
- > XtHeight(smw))) {
- ++count;
- widths = (Dimension *)XtRealloc((char *)widths,
- sizeof(Dimension) * count);
- widths[count - 1] = width_kid;
- width += tmp_w;
- tmp_w = width_kid;
- height = height_kid + vadd;
- }
- else
- height += height_kid;
- if (height > tmp_h)
- tmp_h = height;
- if (width_kid > tmp_w)
- widths[count - 1] = tmp_w = width_kid;
- ++n;
- }
-
- height = tmp_h + smw->simple_menu.bottom_margin;
- width += tmp_w;
-
- if (smw->simple_menu.label && width < XtWidth(smw->simple_menu.label)) {
- float inc;
-
- inc = (XtWidth(smw->simple_menu.label) - width) / (float)count;
- width = XtWidth(smw->simple_menu.label);
- for (n = 0; n < count; n++)
- widths[n] += inc;
- }
-
-#ifndef OLDXAW
- width += hadd + smw->simple_menu.right_margin;
-#endif
-
- x_ins = n = count = 0;
- tmp_w = widths[0];
- tmp_h = vadd;
-
- for (i = smw->simple_menu.label ? 1 : 0;
- i < smw->composite.num_children;
- i++) {
- kid = smw->composite.children[i];
- if (!XtIsManaged(kid))
- continue;
-
- height_kid = XtHeight(kid);
-
- if (n && (tmp_h + height_kid + smw->simple_menu.bottom_margin
- > XtHeight(smw))) {
- x_ins = tmp_w;
- y_ins = vadd;
- ++count;
- tmp_w += widths[count];
- tmp_h = height_kid + vadd;
- }
- else {
- y_ins = tmp_h;
- tmp_h += height_kid;
- }
- ++n;
-
- XtX(kid) = x_ins + hadd;
- XtY(kid) = y_ins;
- XtWidth(kid) = widths[count];
- }
-
- XtFree((char *)widths);
-
- if (allow_change_size)
- MakeSetValuesRequest((Widget) smw, width, height);
-
- if (smw->simple_menu.label) {
- XtX(smw->simple_menu.label) = 0;
- XtY(smw->simple_menu.label) = smw->simple_menu.top_margin;
- XtWidth(smw->simple_menu.label) = XtWidth(smw)
-#ifndef OLDXAW
- - (smw->simple_menu.left_margin + smw->simple_menu.right_margin)
-#endif
- ;
- }
- if (current_entry) {
- if (width_ret)
- *width_ret = XtWidth(current_entry);
- if (height_ret)
- *height_ret = XtHeight(current_entry);
- }
-}
-
-/*
- * Function:
- * AddPositionAction
- *
- * Parameters:
- * app_con - application context
- * data - (not used)
- *
- * Description:
- * Adds the XawPositionSimpleMenu action to the global
- * action list for this appcon.
- */
-/*ARGSUSED*/
-static void
-AddPositionAction(XtAppContext app_con, XPointer data)
-{
- static XtActionsRec pos_action[] = {
- {"XawPositionSimpleMenu", PositionMenuAction},
- };
-
- XtAppAddActions(app_con, pos_action, XtNumber(pos_action));
-}
-
-/*
- * Function:
- * FindMenu
- *
- * Parameters:
- * widget - reference widget
- * name - menu widget's name
- *
- * Description:
- * Find the menu give a name and reference widget
- *
- * Returns:
- * The menu widget or NULL.
- */
-static Widget
-FindMenu(Widget widget, String name)
-{
- Widget w, menu;
-
- for (w = widget; w != NULL; w = XtParent(w))
- if ((menu = XtNameToWidget(w, name)) != NULL)
- return (menu);
-
- return (NULL);
-}
-
-/*
- * Function:
- * PositionMenu
- *
- * Parameters:
- * w - simple menu widget
- * location - pointer the the position or NULL
- *
- * Description:
- * Places the menu
- */
-static void
-PositionMenu(Widget w, XPoint *location)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
- SmeObject entry;
- XPoint t_point;
-
- if (location == NULL) {
- Window temp1, temp2;
- int root_x, root_y, tempX, tempY;
- unsigned int tempM;
-
- location = &t_point;
- if (XQueryPointer(XtDisplay(w), XtWindow(w), &temp1, &temp2,
- &root_x, &root_y, &tempX, &tempY, &tempM) == False) {
- XtAppWarning(XtWidgetToApplicationContext(w),
- "Xaw Simple Menu Widget: "
- "Could not find location of mouse pointer");
- return;
- }
- location->x = (short) root_x;
- location->y = (short) root_y;
- }
-
- /*
- * The width will not be correct unless it is realized
- */
- XtRealizeWidget(w);
-
- location->x -= XtWidth(w) >> 1;
-
- if (smw->simple_menu.popup_entry == NULL)
- entry = smw->simple_menu.label;
- else
- entry = smw->simple_menu.popup_entry;
-
- if (entry != NULL)
- location->y -= XtY(entry) + (XtHeight(entry) >> 1);
-
- MoveMenu(w, location->x, location->y);
-}
-
-/*
- * Function:
- * MoveMenu
- *
- * Parameters:
- * w - simple menu widget
- * x - current location of the widget
- * y - ""
- *
- * Description:
- * Actually moves the menu, may force it to
- * to be fully visable if menu_on_screen is True.
- */
-static void
-MoveMenu(Widget w, int x, int y)
-{
- Arg arglist[2];
- Cardinal num_args = 0;
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
-
- if (smw->simple_menu.menu_on_screen) {
- int width = XtWidth(w) + (XtBorderWidth(w) << 1);
- int height = XtHeight(w) + (XtBorderWidth(w) << 1);
-
- if (x >= 0) {
- int scr_width = WidthOfScreen(XtScreen(w));
-
- if (x + width > scr_width)
- x = scr_width - width;
- }
- if (x < 0)
- x = 0;
-
- if (y >= 0) {
- int scr_height = HeightOfScreen(XtScreen(w));
-
- if (y + height > scr_height)
- y = scr_height - height;
- }
- if (y < 0)
- y = 0;
- }
-
- XtSetArg(arglist[num_args], XtNx, x); num_args++;
- XtSetArg(arglist[num_args], XtNy, y); num_args++;
- XtSetValues(w, arglist, num_args);
-}
-
-/*
- * Function:
- * ChangeCursorOnGrab
- *
- * Parameters:
- * w - menu widget
- * temp1 - not used
- * temp2 - ""
- *
- * Description:
- * Changes the cursor on the active grab to the one
- * specified in out resource list.
- */
-/*ARGSUSED*/
-static void
-ChangeCursorOnGrab(Widget w, XtPointer temp1, XtPointer temp2)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
-
- /*
- * The event mask here is what is currently in the MIT implementation.
- * There really needs to be a way to get the value of the mask out
- * of the toolkit (CDP 5/26/89).
- */
- XChangeActivePointerGrab(XtDisplay(w), ButtonPressMask | ButtonReleaseMask,
- smw->simple_menu.cursor,
- XtLastTimestampProcessed(XtDisplay(w)));
-}
-
-/*
- * Function:
- * MakeSetValuesRequest
- *
- * Parameters:
- * w - simple menu widget
- * width - size requested
- * height - ""
- */
-static void
-MakeSetValuesRequest(Widget w, unsigned int width, unsigned int height)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
- Arg arglist[2];
- Cardinal num_args = 0;
-
- if (!smw->simple_menu.recursive_set_values) {
- if (XtWidth(smw) != width || XtHeight(smw) != height) {
- smw->simple_menu.recursive_set_values = True;
- XtSetArg(arglist[num_args], XtNwidth, width); num_args++;
- XtSetArg(arglist[num_args], XtNheight, height); num_args++;
- XtSetValues(w, arglist, num_args);
- }
- else if (XtIsRealized((Widget)smw))
- XawSimpleMenuRedisplay((Widget)smw, NULL, NULL);
- }
- smw->simple_menu.recursive_set_values = False;
-}
-
-static SmeObject
-DoGetEventEntry(Widget w, int x_loc, int y_loc)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
- SmeObject *entry;
-
- ForAllChildren(smw, entry) {
- if (!XtIsManaged((Widget)*entry))
- continue;
-
- if (x_loc > XtX(*entry)
- && x_loc <= XtX(*entry) + XtWidth(*entry)
- && y_loc > XtY(*entry)
- && y_loc <= XtY(*entry) + XtHeight(*entry)) {
- if (*entry == smw->simple_menu.label)
- return (NULL); /* cannot select the label */
- else
- return (*entry);
- }
- }
-
- return (NULL);
-}
-
-/*
- * Function:
- * GetEventEntry
- *
- * Parameters:
- * w - simple menu widget
- * event - X event
- *
- * Description:
- * Gets an entry given an event that has X and Y coords.
- *
- * Returns:
- * The entry that this point is in
- */
-static SmeObject
-GetEventEntry(Widget w, XEvent *event)
-{
- int x_loc, y_loc, x_root;
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
- SmeObject entry;
- int warp, move;
-
- switch (event->type) {
- case MotionNotify:
- x_loc = event->xmotion.x;
- y_loc = event->xmotion.y;
- x_root = event->xmotion.x_root;
- break;
- case EnterNotify:
- case LeaveNotify:
- x_loc = event->xcrossing.x;
- y_loc = event->xcrossing.y;
- x_root = event->xcrossing.x_root;
- break;
- case ButtonPress:
- case ButtonRelease:
- x_loc = event->xbutton.x;
- y_loc = event->xbutton.y;
- x_root = event->xbutton.x_root;
- break;
- default:
- XtAppError(XtWidgetToApplicationContext(w),
- "Unknown event type in GetEventEntry().");
- return (NULL);
- }
-
- if (x_loc < 0 || x_loc >= XtWidth(smw) ||
- y_loc < 0 || y_loc >= XtHeight(smw))
- return (NULL);
-
- /* Move the menu if it's outside the screen, does not check
- * smw->simple_menu.menu_on_screen because menus is bigger than screen
- */
- if (x_root == WidthOfScreen(XtScreen(w)) - 1 &&
- XtX(w) + XtWidth(w) + (XtBorderWidth(w)) > x_root) {
- warp = -8;
- if (smw->simple_menu.entry_set) {
- entry = DoGetEventEntry(w,
- XtX(smw->simple_menu.entry_set)
- + XtWidth(smw->simple_menu.entry_set) + 1,
- y_loc);
- Unhighlight(w, event, NULL, NULL);
- if (entry) {
- warp = -(int)XtWidth(entry) >> 1;
- move = x_loc - XtWidth(entry) - XtX(entry) + XtBorderWidth(w);
- }
- else {
- warp = 0;
- move = WidthOfScreen(XtScreen(w)) -
- (XtX(w) + XtWidth(w) + (XtBorderWidth(w) << 1));
- }
- }
- else {
- warp = 0;
- move = WidthOfScreen(XtScreen(w)) -
- (XtX(w) + XtWidth(w) + (XtBorderWidth(w) << 1));
- }
- }
- else if (x_root == 0 && XtX(w) < 0) {
- warp = 8;
- if (smw->simple_menu.entry_set) {
- entry = DoGetEventEntry(w, XtX(smw->simple_menu.entry_set) - 1,
- y_loc);
- Unhighlight(w, event, NULL, NULL);
- if (entry) {
- warp = XtWidth(entry) >> 1;
- move = x_loc - XtX(entry);
- }
- else
- move = x_loc + XtBorderWidth(w);
- }
- else
- move = x_loc + XtBorderWidth(w);
- }
- else
- move = warp = 0;
-
- if (move)
- XtMoveWidget(w, XtX(w) + move, XtY(w));
- if (warp)
- XWarpPointer(XtDisplay(w), None, None, 0, 0, 0, 0, warp, 0);
-
- return (DoGetEventEntry(w, x_loc, y_loc));
-}
-
-static void
-CalculateNewSize(Widget w, Dimension *width_return, Dimension *height_return)
-{
- SimpleMenuWidget xaw = (SimpleMenuWidget)w;
- Widget kid;
- Cardinal i;
- int width_kid, height_kid;
- int width, height, tmp_w, tmp_h, max_dim;
- short vadd, hadd;
- int n, columns, test_h, num_children = 0;
- Boolean try_layout = False;
-
-#ifndef OLDXAW
- hadd = xaw->simple_menu.left_margin + xaw->simple_menu.right_margin;
-#else
- hadd = 0;
-#endif
- vadd = xaw->simple_menu.top_margin + xaw->simple_menu.bottom_margin;
- if (xaw->simple_menu.label)
- vadd += XtHeight(xaw->simple_menu.label);
-
- if (*height_return)
- max_dim = *height_return;
- else if (!XtHeight(w)) {
- max_dim = HeightOfScreen(XtScreen(w));
- try_layout = True;
- }
- else
- max_dim = XtHeight(w);
- max_dim -= vadd;
-
- width = height = tmp_w = tmp_h = n = test_h = 0;
- columns = 1;
- for (i = xaw->simple_menu.label ? 1 : 0;
- i < xaw->composite.num_children;
- i++) {
- kid = xaw->composite.children[i];
- if (!XtIsManaged(kid))
- continue;
- ++num_children;
- width_kid = XtWidth(kid);
- height_kid = XtHeight(kid);
-
- if (try_layout) {
- if (!test_h)
- test_h = height_kid;
- else if (test_h != height_kid)
- try_layout = False;
- }
-
- if (n && (height + height_kid > max_dim)) {
- ++columns;
- width += tmp_w;
- tmp_w = width_kid;
- height = height_kid;
- }
- else
- height += height_kid;
- if (height > tmp_h)
- tmp_h = height;
- if (width_kid > tmp_w)
- tmp_w = width_kid;
- ++n;
- }
-
- height = tmp_h + vadd;
- width += tmp_w + hadd;
-
- if (xaw->simple_menu.label)
- width = XawMax(width, XtWidth(xaw->simple_menu.label) + hadd);
-
- *width_return = width;
- *height_return = height;
-
- if (try_layout && columns > 1 && num_children > 2) {
- int space;
-
- height = test_h * (xaw->simple_menu.label ?
- num_children - 1 :
- num_children);
-
- max_dim -= max_dim % test_h;
- space = max_dim - (height % max_dim);
- if (space >= test_h * columns) {
- height = max_dim - space / columns;
- if (height % test_h)
- height += test_h - (height % test_h);
- *height_return = height + vadd;
- CalculateNewSize(w, width_return, height_return);
- }
- }
-}
-
-static void
-MakeResizeRequest(Widget w)
-{
- int tries;
- Dimension width, height;
-
- width = XtWidth(w);
- height = XtHeight(w);
-
- for (tries = 0; tries < 100; tries++) {
- CalculateNewSize(w, &width, &height);
- if (width == XtWidth(w) && height == XtHeight(w))
- break;
- if (XtMakeResizeRequest(w, width, height, &width, &height) ==
- XtGeometryNo)
- break;
- }
-}
-
-#ifndef OLDXAW
-static void
-Popdown(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
-
- while (XtParent(w) &&
- XtIsSubclass(XtParent(w), simpleMenuWidgetClass)) {
- if (((SimpleMenuWidget)XtParent(w))->simple_menu.sub_menu == (Widget)w) {
- w = XtParent(w);
- smw = (SimpleMenuWidget)w;
- smw->simple_menu.entry_set = NULL;
- }
- else
- break;
- }
-
- smw->simple_menu.state |= SMW_UNMAPPING;
- if (smw->simple_menu.sub_menu)
- PopdownSubMenu(smw);
- XtCallActionProc(w, "XtMenuPopdown", event, params, *num_params);
-}
-
-static void
-PopupSubMenu(SimpleMenuWidget smw)
-{
- Arg args[2];
- Cardinal num_args;
- Widget menu;
- SmeBSBObject entry = (SmeBSBObject)smw->simple_menu.entry_set;
- Position menu_x, menu_y;
- Bool popleft;
-
- if (entry->sme_bsb.menu_name == NULL)
- return;
-
- if ((menu = FindMenu((Widget)smw, entry->sme_bsb.menu_name)) == NULL)
- return;
-
- smw->simple_menu.sub_menu = menu;
-
- if (!XtIsRealized(menu))
- XtRealizeWidget(menu);
-
- popleft = (smw->simple_menu.state & SMW_POPLEFT) != 0;
-
- if (popleft)
- XtTranslateCoords((Widget)smw, -(int)XtWidth(menu),
- XtY(entry) - XtBorderWidth(menu), &menu_x, &menu_y);
- else
- XtTranslateCoords((Widget)smw, XtWidth(smw), XtY(entry)
- - XtBorderWidth(menu), &menu_x, &menu_y);
-
- if (!popleft && menu_x >= 0) {
- int scr_width = WidthOfScreen(XtScreen(menu));
-
- if (menu_x + XtWidth(menu) > scr_width) {
- menu_x -= XtWidth(menu) + XtWidth(smw);
- popleft = True;
- }
- }
- else if (popleft && menu_x < 0) {
- menu_x = 0;
- popleft = False;
- }
- if (menu_y >= 0) {
- int scr_height = HeightOfScreen(XtScreen(menu));
-
- if (menu_y + XtHeight(menu) > scr_height)
- menu_y = scr_height - XtHeight(menu) - XtBorderWidth(menu);
- }
- if (menu_y < 0)
- menu_y = 0;
-
- num_args = 0;
- XtSetArg(args[num_args], XtNx, menu_x); num_args++;
- XtSetArg(args[num_args], XtNy, menu_y); num_args++;
- XtSetValues(menu, args, num_args);
-
- if (popleft)
- ((SimpleMenuWidget)menu)->simple_menu.state |= SMW_POPLEFT;
- else
- ((SimpleMenuWidget)menu)->simple_menu.state &= ~SMW_POPLEFT;
-
- XtPopup(menu, XtGrabNone);
-}
-
-static void
-PopdownSubMenu(SimpleMenuWidget smw)
-{
- SimpleMenuWidget menu = (SimpleMenuWidget)smw->simple_menu.sub_menu;
-
- if (!menu)
- return;
-
- menu->simple_menu.state |= SMW_UNMAPPING;
- PopdownSubMenu(menu);
-
- XtPopdown((Widget)menu);
-
- smw->simple_menu.sub_menu = NULL;
-}
-
-/*ARGSUSED*/
-static void
-PopupCB(Widget w, XtPointer client_data, XtPointer call_data)
-{
- SimpleMenuWidget smw = (SimpleMenuWidget)w;
-
- smw->simple_menu.state &= ~(SMW_UNMAPPING | SMW_POPLEFT);
-}
-#endif /* OLDXAW */
+/*
+Copyright 1989, 1994, 1998 The Open Group
+
+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.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+ */
+
+/*
+ * SimpleMenu.c - Source code file for SimpleMenu widget.
+ *
+ * Date: April 3, 1989
+ *
+ * By: Chris D. Peterson
+ * MIT X Consortium
+ * kit@expo.lcs.mit.edu
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <stdio.h>
+#include <X11/IntrinsicP.h>
+#include <X11/StringDefs.h>
+#include <X11/Xmu/Initer.h>
+#include <X11/Xmu/SysUtil.h>
+#include <X11/Xaw/Cardinals.h>
+#include <X11/Xaw/SimpleMenP.h>
+#include <X11/Xaw/SmeBSBP.h>
+#include <X11/Xaw/XawInit.h>
+#include "Private.h"
+
+#define streq(a, b) (strcmp((a), (b)) == 0)
+
+#define ForAllChildren(smw, childP) \
+for ((childP) = (SmeObject *)(smw)->composite.children; \
+ (childP) < (SmeObject *)((smw)->composite.children \
+ + (smw)->composite.num_children); \
+ (childP)++)
+
+#ifndef OLDXAW
+#define SMW_UNMAPPING 0x01
+#define SMW_POPLEFT 0x02
+#endif
+
+/*
+ * Class Methods
+ */
+static void XawSimpleMenuChangeManaged(Widget);
+static void XawSimpleMenuClassInitialize(void);
+static void XawSimpleMenuClassPartInitialize(WidgetClass);
+static XtGeometryResult XawSimpleMenuGeometryManager(Widget, XtWidgetGeometry*,
+ XtWidgetGeometry*);
+static void XawSimpleMenuInitialize(Widget, Widget, ArgList, Cardinal*);
+static void XawSimpleMenuRealize(Widget, XtValueMask*, XSetWindowAttributes*);
+static void XawSimpleMenuRedisplay(Widget, XEvent*, Region);
+static void XawSimpleMenuResize(Widget);
+static Boolean XawSimpleMenuSetValues(Widget, Widget, Widget,
+ ArgList, Cardinal*);
+static Boolean XawSimpleMenuSetValuesHook(Widget, ArgList, Cardinal*);
+#ifndef OLDXAW
+static void PopupSubMenu(SimpleMenuWidget);
+static void PopdownSubMenu(SimpleMenuWidget);
+static void PopupCB(Widget, XtPointer, XtPointer);
+#endif
+
+/*
+ * Prototypes
+ */
+static void AddPositionAction(XtAppContext, XPointer);
+static void CalculateNewSize(Widget, Dimension*, Dimension*);
+static void ChangeCursorOnGrab(Widget, XtPointer, XtPointer);
+static void CreateLabel(Widget);
+static SmeObject DoGetEventEntry(Widget, int, int);
+static Widget FindMenu(Widget, String);
+static SmeObject GetEventEntry(Widget, XEvent*);
+static void Layout(Widget, Dimension*, Dimension*);
+static void MakeResizeRequest(Widget);
+static void MakeSetValuesRequest(Widget, unsigned int, unsigned int);
+static void MoveMenu(Widget, int, int);
+static void PositionMenu(Widget, XPoint*);
+
+/*
+ * Actions
+ */
+static void Highlight(Widget, XEvent*, String*, Cardinal*);
+static void Notify(Widget, XEvent*, String*, Cardinal*);
+#ifndef OLDXAW
+static void Popdown(Widget, XEvent*, String*, Cardinal*);
+#endif
+static void PositionMenuAction(Widget, XEvent*, String*, Cardinal*);
+static void Unhighlight(Widget, XEvent*, String*, Cardinal*);
+
+/*
+ * Initialization
+ */
+#define offset(field) XtOffsetOf(SimpleMenuRec, simple_menu.field)
+
+static XtResource resources[] = {
+ /* label */
+ {
+ XtNlabel,
+ XtCLabel,
+ XtRString,
+ sizeof(String),
+ offset(label_string),
+ XtRString,
+ NULL
+ },
+ {
+ XtNlabelClass,
+ XtCLabelClass,
+ XtRPointer,
+ sizeof(WidgetClass),
+ offset(label_class),
+ XtRImmediate,
+ NULL
+ },
+
+ /* layout */
+ {
+ XtNrowHeight,
+ XtCRowHeight,
+ XtRDimension,
+ sizeof(Dimension),
+ offset(row_height),
+ XtRImmediate,
+ (XtPointer)0
+ },
+ {
+ XtNtopMargin,
+ XtCVerticalMargins,
+ XtRDimension,
+ sizeof(Dimension),
+ offset(top_margin),
+ XtRImmediate,
+ (XtPointer)0
+ },
+ {
+ XtNbottomMargin,
+ XtCVerticalMargins,
+ XtRDimension,
+ sizeof(Dimension),
+ offset(bottom_margin),
+ XtRImmediate,
+ (XtPointer)0
+ },
+#ifndef OLDXAW
+ {
+ XtNleftMargin,
+ XtCHorizontalMargins,
+ XtRDimension,
+ sizeof(Dimension),
+ offset(left_margin),
+ XtRImmediate,
+ (XtPointer)0
+ },
+ {
+ XtNrightMargin,
+ XtCHorizontalMargins,
+ XtRDimension,
+ sizeof(Dimension),
+ offset(right_margin),
+ XtRImmediate,
+ (XtPointer)0
+ },
+#endif
+
+ /* misc */
+ {
+ XtNallowShellResize,
+ XtCAllowShellResize,
+ XtRBoolean,
+ sizeof(Boolean),
+ XtOffsetOf(SimpleMenuRec, shell.allow_shell_resize),
+ XtRImmediate,
+ (XtPointer)True
+ },
+ {
+ XtNcursor,
+ XtCCursor,
+ XtRCursor,
+ sizeof(Cursor),
+ offset(cursor),
+ XtRImmediate,
+ (XtPointer)None
+ },
+ {
+ XtNmenuOnScreen,
+ XtCMenuOnScreen,
+ XtRBoolean,
+ sizeof(Boolean),
+ offset(menu_on_screen),
+ XtRImmediate,
+ (XtPointer)True
+ },
+ {
+ XtNpopupOnEntry,
+ XtCPopupOnEntry,
+ XtRWidget,
+ sizeof(Widget),
+ offset(popup_entry),
+ XtRWidget,
+ NULL
+ },
+ {
+ XtNbackingStore,
+ XtCBackingStore,
+ XtRBackingStore,
+ sizeof(int),
+ offset(backing_store),
+ XtRImmediate,
+ (XtPointer)(Always + WhenMapped + NotUseful)
+ },
+#ifndef OLDXAW
+ {
+ XawNdisplayList,
+ XawCDisplayList,
+ XawRDisplayList,
+ sizeof(XawDisplayList*),
+ offset(display_list),
+ XtRImmediate,
+ NULL
+ },
+#endif
+};
+#undef offset
+
+static char defaultTranslations[] =
+"<Enter>:" "highlight()\n"
+"<Leave>:" "unhighlight()\n"
+"<BtnMotion>:" "highlight()\n"
+#ifndef OLDXAW
+"<BtnUp>:" "popdown() notify() unhighlight()\n"
+#else
+"<BtnUp>:" "MenuPopdown() notify() unhighlight()\n"
+#endif
+;
+
+static XtActionsRec actionsList[] =
+{
+ {"notify", Notify},
+ {"highlight", Highlight},
+ {"unhighlight", Unhighlight},
+#ifndef OLDXAW
+ {"popdown", Popdown},
+ {"set-values", XawSetValuesAction},
+ {"get-values", XawGetValuesAction},
+ {"declare", XawDeclareAction},
+ {"call-proc", XawCallProcAction},
+#endif
+};
+
+static CompositeClassExtensionRec extension_rec = {
+ NULL, /* next_extension */
+ NULLQUARK, /* record_type */
+ XtCompositeExtensionVersion, /* version */
+ sizeof(CompositeClassExtensionRec), /* record_size */
+ True, /* accepts_objects */
+};
+
+#define Superclass (&overrideShellClassRec)
+SimpleMenuClassRec simpleMenuClassRec = {
+ /* core */
+ {
+ (WidgetClass)Superclass, /* superclass */
+ "SimpleMenu", /* class_name */
+ sizeof(SimpleMenuRec), /* size */
+ XawSimpleMenuClassInitialize, /* class_initialize */
+ XawSimpleMenuClassPartInitialize, /* class_part_initialize */
+ False, /* class_inited */
+ XawSimpleMenuInitialize, /* initialize */
+ NULL, /* initialize_hook */
+ XawSimpleMenuRealize, /* realize */
+ actionsList, /* actions */
+ XtNumber(actionsList), /* num_actions */
+ resources, /* resources */
+ XtNumber(resources), /* num_resources */
+ NULLQUARK, /* xrm_class */
+ True, /* compress_motion */
+ True, /* compress_exposure */
+ True, /* compress_enterleave */
+ False, /* visible_interest */
+ NULL, /* destroy */
+ XawSimpleMenuResize, /* resize */
+ XawSimpleMenuRedisplay, /* expose */
+ XawSimpleMenuSetValues, /* set_values */
+ XawSimpleMenuSetValuesHook, /* set_values_hook */
+ XtInheritSetValuesAlmost, /* set_values_almost */
+ NULL, /* get_values_hook */
+ NULL, /* accept_focus */
+ XtVersion, /* intrinsics version */
+ NULL, /* callback offsets */
+ defaultTranslations, /* tm_table */
+ NULL, /* query_geometry */
+ NULL, /* display_accelerator */
+ NULL, /* extension */
+ },
+ /* composite */
+ {
+ XawSimpleMenuGeometryManager, /* geometry_manager */
+ XawSimpleMenuChangeManaged, /* change_managed */
+ XtInheritInsertChild, /* insert_child */
+ XtInheritDeleteChild, /* delete_child */
+ NULL, /* extension */
+ },
+ /* shell */
+ {
+ NULL, /* extension */
+ },
+ /* override */
+ {
+ NULL, /* extension */
+ },
+ /* simple_menu */
+ {
+ NULL, /* extension */
+ },
+};
+
+WidgetClass simpleMenuWidgetClass = (WidgetClass)&simpleMenuClassRec;
+
+/*
+ * Implementation
+ */
+/*
+ * Function:
+ * XawSimpleMenuClassInitialize
+ *
+ * Description:
+ * Class Initialize routine, called only once.
+ */
+static void
+XawSimpleMenuClassInitialize(void)
+{
+ XawInitializeWidgetSet();
+ XtAddConverter(XtRString, XtRBackingStore, XmuCvtStringToBackingStore,
+ NULL, 0);
+ XtSetTypeConverter(XtRBackingStore, XtRString, XmuCvtBackingStoreToString,
+ NULL, 0, XtCacheNone, NULL);
+ XmuAddInitializer(AddPositionAction, NULL);
+}
+
+/*
+ * Function:
+ * XawSimpleMenuClassPartInitialize
+ * Arguments: wc - the widget class of the subclass.
+ *
+ * Description:
+ * Class Part Initialize routine, called for every subclass. Makes
+ * sure that the subclasses pick up the extension record.
+ */
+static void
+XawSimpleMenuClassPartInitialize(WidgetClass wc)
+{
+ SimpleMenuWidgetClass smwc = (SimpleMenuWidgetClass)wc;
+
+ /*
+ * Make sure that our subclass gets the extension rec too
+ */
+ extension_rec.next_extension = smwc->composite_class.extension;
+ smwc->composite_class.extension = (XtPointer) &extension_rec;
+}
+
+/*
+ * Function:
+ * XawSimpleMenuInitialize
+ *
+ * Parameters:
+ * request - widget requested by the argument list
+ * cnew - new widget with both resource and non resource values
+ *
+ * Description:
+ * Initializes the simple menu widget.
+ */
+/*ARGSUSED*/
+static void
+XawSimpleMenuInitialize(Widget request, Widget cnew,
+ ArgList args, Cardinal *num_args)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)cnew;
+ Dimension width, height;
+
+ XmuCallInitializers(XtWidgetToApplicationContext(cnew));
+
+ if (smw->simple_menu.label_class == NULL)
+ smw->simple_menu.label_class = smeBSBObjectClass;
+
+ smw->simple_menu.label = NULL;
+ smw->simple_menu.entry_set = NULL;
+ smw->simple_menu.recursive_set_values = False;
+#ifndef OLDXAW
+ smw->simple_menu.sub_menu = NULL;
+ smw->simple_menu.state = 0;
+
+ XtAddCallback(cnew, XtNpopupCallback, PopupCB, NULL);
+#endif
+
+ if (smw->simple_menu.label_string != NULL)
+ CreateLabel(cnew);
+
+ width = height = 0;
+ CalculateNewSize(cnew, &width, &height);
+
+ smw->simple_menu.menu_width = True;
+
+ if (XtWidth(smw) == 0) {
+ smw->simple_menu.menu_width = False;
+ XtWidth(smw) = width;
+ }
+
+ smw->simple_menu.menu_height = True;
+
+ if (XtHeight(smw) == 0) {
+ smw->simple_menu.menu_height = False;
+ XtHeight(smw) = height;
+ }
+
+ /*
+ * Add a popup_callback routine for changing the cursor
+ */
+ XtAddCallback(cnew, XtNpopupCallback, ChangeCursorOnGrab, NULL);
+}
+
+/*
+ * Function:
+ * XawSimpleMenuRedisplay
+ *
+ * Parameters:
+ * w - simple menu widget
+ * event - X event that caused this redisplay
+ * region - region the needs to be repainted
+ *
+ * Description:
+ * Redisplays the contents of the widget.
+ */
+/*ARGSUSED*/
+static void
+XawSimpleMenuRedisplay(Widget w, XEvent *event, Region region)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+ SmeObject *entry;
+ SmeObjectClass cclass;
+
+ if (region == NULL)
+ XClearWindow(XtDisplay(w), XtWindow(w));
+
+#ifndef OLDXAW
+ if (smw->simple_menu.display_list)
+ XawRunDisplayList(w, smw->simple_menu.display_list, event, region);
+#endif
+
+ /*
+ * Check and Paint each of the entries - including the label
+ */
+ ForAllChildren(smw, entry) {
+ if (!XtIsManaged((Widget)*entry))
+ continue;
+
+ if (region != NULL)
+ switch(XRectInRegion(region, XtX(*entry),XtY(*entry),
+ XtWidth(*entry), XtHeight(*entry))) {
+ case RectangleIn:
+ case RectanglePart:
+ break;
+ default:
+ continue;
+ }
+
+ cclass = (SmeObjectClass)(*entry)->object.widget_class;
+
+ if (cclass->rect_class.expose != NULL)
+ (cclass->rect_class.expose)((Widget)*entry, NULL, NULL);
+ }
+}
+
+/*
+ * Function:
+ * XawSimpleMenuRealize
+ *
+ * Parameters:
+ * w - simple menu widget
+ * mask - value mask for the window to create
+ * attrs - attributes for the window to create
+ *
+ * Description:
+ * Realizes the widget.
+ */
+static void
+XawSimpleMenuRealize(Widget w, XtValueMask *mask, XSetWindowAttributes *attrs)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+#ifndef OLDXAW
+ XawPixmap *pixmap;
+#endif
+
+ attrs->cursor = smw->simple_menu.cursor;
+ *mask |= CWCursor;
+ if (smw->simple_menu.backing_store == Always ||
+ smw->simple_menu.backing_store == NotUseful ||
+ smw->simple_menu.backing_store == WhenMapped) {
+ *mask |= CWBackingStore;
+ attrs->backing_store = smw->simple_menu.backing_store;
+ }
+ else
+ *mask &= ~CWBackingStore;
+
+ (*Superclass->core_class.realize)(w, mask, attrs);
+
+#ifndef OLDXAW
+ if (w->core.background_pixmap > XtUnspecifiedPixmap) {
+ pixmap = XawPixmapFromXPixmap(w->core.background_pixmap, XtScreen(w),
+ w->core.colormap, w->core.depth);
+ if (pixmap && pixmap->mask)
+ XawReshapeWidget(w, pixmap);
+ }
+#endif
+}
+
+/*
+ * Function:
+ * XawSimpleMenuResize
+ *
+ * Parameters:
+ * w - simple menu widget
+ *
+ * Description:
+ * Handle the menu being resized.
+ */
+static void
+XawSimpleMenuResize(Widget w)
+{
+ if (!XtIsRealized(w))
+ return;
+
+ Layout(w, NULL, NULL);
+
+ XawSimpleMenuRedisplay(w, NULL, NULL);
+}
+
+/*
+ * Function:
+ * XawSimpleMenuSetValues
+ *
+ * Parameters:
+ * current - current state of the widget
+ * request - what was requested
+ * cnew - what the widget will become
+ *
+ * Description:
+ * Relayout the menu when one of the resources is changed.
+ */
+/*ARGSUSED*/
+static Boolean
+XawSimpleMenuSetValues(Widget current, Widget request, Widget cnew,
+ ArgList args, Cardinal *num_args)
+{
+ SimpleMenuWidget smw_old = (SimpleMenuWidget)current;
+ SimpleMenuWidget smw_new = (SimpleMenuWidget)cnew;
+ Boolean ret_val = False, layout = False;
+
+ if (!XtIsRealized(current))
+ return (False);
+
+ if (!smw_new->simple_menu.recursive_set_values) {
+ if (XtWidth(smw_new) != XtWidth(smw_old)) {
+ smw_new->simple_menu.menu_width = XtWidth(smw_new) != 0;
+ layout = True;
+ }
+ if (XtHeight(smw_new) != XtHeight(smw_old)) {
+ smw_new->simple_menu.menu_height = XtHeight(smw_new) != 0;
+ layout = True;
+ }
+ }
+
+ if (smw_old->simple_menu.cursor != smw_new->simple_menu.cursor)
+ XDefineCursor(XtDisplay(cnew), XtWindow(cnew),
+ smw_new->simple_menu.cursor);
+
+ if (smw_old->simple_menu.label_string !=smw_new->simple_menu.label_string) {
+ if (smw_new->simple_menu.label_string == NULL) /* Destroy */
+ XtDestroyWidget((Widget)smw_old->simple_menu.label);
+ else if (smw_old->simple_menu.label_string == NULL) /* Create */
+ CreateLabel(cnew);
+ else { /* Change */
+ Arg arglist[1];
+
+ XtSetArg(arglist[0], XtNlabel, smw_new->simple_menu.label_string);
+ XtSetValues((Widget)smw_new->simple_menu.label, arglist, ONE);
+ }
+ }
+
+ if (smw_old->simple_menu.label_class != smw_new->simple_menu.label_class)
+ XtAppWarning(XtWidgetToApplicationContext(cnew),
+ "No Dynamic class change of the SimpleMenu Label.");
+
+ if (smw_old->simple_menu.top_margin != smw_new->simple_menu.top_margin
+ || smw_old->simple_menu.bottom_margin
+ != smw_new->simple_menu.bottom_margin) {
+ layout = True;
+ ret_val = True;
+ }
+
+#ifndef OLDXAW
+ if (smw_old->core.background_pixmap != smw_new->core.background_pixmap) {
+ XawPixmap *opix, *npix;
+
+ opix = XawPixmapFromXPixmap(smw_old->core.background_pixmap,
+ XtScreen(smw_old), smw_old->core.colormap,
+ smw_old->core.depth);
+ npix = XawPixmapFromXPixmap(smw_new->core.background_pixmap,
+ XtScreen(smw_new), smw_new->core.colormap,
+ smw_new->core.depth);
+ if ((npix && npix->mask) || (opix && opix->mask))
+ XawReshapeWidget(cnew, npix);
+ }
+#endif
+
+ if (layout)
+ Layout(cnew, NULL, NULL);
+
+ return (ret_val);
+}
+
+/*
+ * Function:
+ * XawSimpleMenuSetValuesHook
+ *
+ * Parameters:
+ * w - menu widget
+ * arglist - argument list passed to XtSetValues
+ * num_args - number of args
+ *
+ * Description:
+ * To handle a special case, this is passed the actual arguments.
+ */
+static Boolean
+XawSimpleMenuSetValuesHook(Widget w, ArgList arglist, Cardinal *num_args)
+{
+ Cardinal i;
+ Dimension width, height;
+
+ width = XtWidth(w);
+ height = XtHeight(w);
+
+ for (i = 0 ; i < *num_args ; i++) {
+ if (streq(arglist[i].name, XtNwidth))
+ width = (Dimension)arglist[i].value;
+ if (streq(arglist[i].name, XtNheight))
+ height = (Dimension) arglist[i].value;
+ }
+
+ if (width != XtWidth(w) || height != XtHeight(w))
+ MakeSetValuesRequest(w, width, height);
+
+ return (False);
+}
+
+/*
+ * Geometry Management routines
+ */
+/*
+ * Function:
+ * XawSimpleMenuGeometryManager
+ *
+ * Parameters:
+ * w - Menu Entry making the request
+ * request - requested new geometry
+ * reply - the allowed geometry.
+ *
+ * Description:
+ * This is the SimpleMenu Widget's Geometry Manager.
+ *
+ * Returns:
+ * XtGeometry{Yes, No, Almost}
+ */
+static XtGeometryResult
+XawSimpleMenuGeometryManager(Widget w, XtWidgetGeometry *request,
+ XtWidgetGeometry *reply)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)XtParent(w);
+ SmeObject entry = (SmeObject)w;
+ XtGeometryMask mode = request->request_mode;
+ XtGeometryResult answer;
+ Dimension old_height, old_width;
+
+ if (!(mode & CWWidth) && !(mode & CWHeight))
+ return (XtGeometryNo);
+
+ reply->width = request->width;
+ reply->height = request->height;
+
+ old_width = XtWidth(entry);
+ old_height = XtHeight(entry);
+
+ Layout(w, &reply->width, &reply->height);
+
+ /*
+ * Since we are an override shell and have no parent there is no one to
+ * ask to see if this geom change is okay, so I am just going to assume
+ * we can do whatever we want. If you subclass be very careful with this
+ * assumption, it could bite you.
+ *
+ * Chris D. Peterson - Sept. 1989.
+ */
+ if ((!(mode & CWWidth) || reply->width == request->width)
+ && (!(mode & CWHeight) || reply->height == request->height)) {
+ if (mode & XtCWQueryOnly) { /* Actually perform the layout */
+ XtWidth(entry) = old_width;
+ XtHeight(entry) = old_height;
+ }
+ else
+ Layout((Widget)smw, NULL, NULL);
+ answer = XtGeometryDone;
+ }
+ else {
+ XtWidth(entry) = old_width;
+ XtHeight(entry) = old_height;
+
+ if ((reply->width == request->width && !(mode & CWHeight))
+ || (reply->height == request->height && !(mode & CWWidth))
+ || (reply->width == request->width
+ && reply->height == request->height))
+ answer = XtGeometryNo;
+ else {
+ answer = XtGeometryAlmost;
+ reply->request_mode = 0;
+ if (reply->width != request->width)
+ reply->request_mode |= CWWidth;
+ if (reply->height != request->height)
+ reply->request_mode |= CWHeight;
+ }
+ }
+
+ return (answer);
+}
+
+/*
+ * Function:
+ * XawSimpleMenuChangeManaged
+ *
+ * Parameters:
+ * w - simple menu widget
+ *
+ * Description:
+ * Called whenever a new child is managed.
+ */
+static void
+XawSimpleMenuChangeManaged(Widget w)
+{
+ Layout(w, NULL, NULL);
+}
+
+/*
+ * Global Action Routines
+ *
+ * These actions routines will be added to the application's
+ * global action list
+ */
+/*
+ * Function:
+ * PositionMenuAction
+ *
+ * Parameters:
+ * w - a widget (no the simple menu widget)
+ * event - the event that caused this action
+ * params - parameters passed to the routine.
+ * we expect the name of the menu here.
+ * num_params - ""
+ *
+ * Description:
+ * Positions the simple menu widget.
+ */
+/*ARGSUSED*/
+static void
+PositionMenuAction(Widget w, XEvent *event,
+ String *params, Cardinal *num_params)
+{
+ Widget menu;
+ XPoint loc;
+
+ if (*num_params != 1) {
+ XtAppWarning(XtWidgetToApplicationContext(w),
+ "SimpleMenuWidget: position menu action expects "
+ "only one parameter which is the name of the menu.");
+ return;
+ }
+
+ if ((menu = FindMenu(w, params[0])) == NULL) {
+ char error_buf[BUFSIZ];
+
+ (void)XmuSnprintf(error_buf, sizeof(error_buf),
+ "SimpleMenuWidget: could not find menu named %s.",
+ params[0]);
+ XtAppWarning(XtWidgetToApplicationContext(w), error_buf);
+ return;
+ }
+
+ switch (event->type) {
+ case ButtonPress:
+ case ButtonRelease:
+ loc.x = event->xbutton.x_root;
+ loc.y = event->xbutton.y_root;
+ PositionMenu(menu, &loc);
+ break;
+ case EnterNotify:
+ case LeaveNotify:
+ loc.x = event->xcrossing.x_root;
+ loc.y = event->xcrossing.y_root;
+ PositionMenu(menu, &loc);
+ break;
+ case MotionNotify:
+ loc.x = event->xmotion.x_root;
+ loc.y = event->xmotion.y_root;
+ PositionMenu(menu, &loc);
+ break;
+ default:
+ PositionMenu(menu, NULL);
+ break;
+ }
+}
+
+/*
+ * Widget Action Routines
+ */
+/*
+ * Function:
+ * Unhighlight
+ *
+ * Parameters:
+ * w - simple menu widget
+ * event - event that caused this action
+ * params - not used
+ * num_params - ""
+ *
+ * Description:
+ * Unhighlights current entry.
+ */
+/*ARGSUSED*/
+static void
+Unhighlight(Widget w, XEvent *event, String *params, Cardinal *num_params)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+ SmeObject entry = smw->simple_menu.entry_set;
+
+ if (entry == NULL)
+ return;
+
+#ifndef OLDXAW
+ if (!smw->simple_menu.sub_menu)
+#endif
+ {
+ SmeObjectClass cclass;
+
+ smw->simple_menu.entry_set = NULL;
+ cclass = (SmeObjectClass)entry->object.widget_class;
+ (cclass->sme_class.unhighlight)((Widget)entry);
+ }
+}
+
+/*
+ * Function:
+ * Highlight
+ *
+ * Parameters:
+ * w - simple menu widget
+ * event - event that caused this action
+ * params - not used
+ * num_params - ""
+ *
+ * Description:
+ * Highlights current entry.
+ */
+/*ARGSUSED*/
+static void
+Highlight(Widget w, XEvent *event, String *params, Cardinal *num_params)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+ SmeObject entry;
+
+ if (!XtIsSensitive(w))
+ return;
+
+ entry = GetEventEntry(w, event);
+
+ if (entry == smw->simple_menu.entry_set)
+ return;
+
+#ifndef OLDXAW
+ if (!smw->simple_menu.sub_menu)
+#endif
+ Unhighlight(w, event, params, num_params);
+
+ if (entry == NULL)
+ return;
+
+ if (!XtIsSensitive((Widget)entry))
+ return;
+
+#ifndef OLDXAW
+ if (smw->simple_menu.sub_menu)
+ PopdownSubMenu(smw);
+#endif
+
+ Unhighlight(w, event, params, num_params);
+
+#ifndef OLDXAW
+ if (!(smw->simple_menu.state & SMW_UNMAPPING))
+#endif
+ {
+ SmeObjectClass cclass;
+
+ smw->simple_menu.entry_set = entry;
+ cclass = (SmeObjectClass)entry->object.widget_class;
+
+ (cclass->sme_class.highlight)((Widget)entry);
+
+#ifndef OLDXAW
+ if (XtIsSubclass((Widget)entry, smeBSBObjectClass))
+ PopupSubMenu(smw);
+#endif
+ }
+}
+
+/*
+ * Function:
+ * Notify
+ *
+ * Parameters:
+ * w - simple menu widget
+ * event - event that caused this action
+ * params - not used
+ * num_params - ""
+ *
+ * Description:
+ * Notify user of current entry.
+ */
+/*ARGSUSED*/
+static void
+Notify(Widget w, XEvent *event, String *params, Cardinal *num_params)
+{
+ SmeObject entry;
+ SmeObjectClass cclass;
+
+ /* may be a propagated event from a sub menu, need to check it */
+ if (XtWindow(w) != event->xany.window)
+ return;
+ entry = GetEventEntry(w, event);
+ if (entry == NULL || !XtIsSensitive((Widget)entry))
+ return;
+
+ cclass = (SmeObjectClass) entry->object.widget_class;
+ (cclass->sme_class.notify)((Widget)entry);
+}
+
+/*
+ * Public Functions
+ */
+/*
+ * Function:
+ * XawSimpleMenuAddGlobalActions
+ *
+ * Arguments:
+ * app_con - appcontext
+ *
+ * Description:
+ * Adds the global actions to the simple menu widget.
+ */
+void
+XawSimpleMenuAddGlobalActions(XtAppContext app_con)
+{
+ XtInitializeWidgetClass(simpleMenuWidgetClass);
+ XmuCallInitializers(app_con);
+}
+
+/*
+ * Function:
+ * XawSimpleMenuGetActiveEntry
+ *
+ * Parameters:
+ * w - smw widget
+ *
+ * Description:
+ * Gets the currently active (set) entry.
+ *
+ * Returns:
+ * The currently set entry or NULL if none is set
+ */
+Widget
+XawSimpleMenuGetActiveEntry(Widget w)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+
+ return ((Widget)smw->simple_menu.entry_set);
+}
+
+/*
+ * Function:
+ * XawSimpleMenuClearActiveEntry
+ *
+ * Parameters:
+ * w - smw widget
+ *
+ * Description:
+ * Unsets the currently active (set) entry.
+ */
+void
+XawSimpleMenuClearActiveEntry(Widget w)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+
+ smw->simple_menu.entry_set = NULL;
+}
+
+/*
+ * Private Functions
+ */
+/*
+ * Function:
+ * CreateLabel
+ *
+ * Parameters:
+ * w - smw widget
+ *
+ * Description:
+ * Creates the label object and makes sure it is the first child in
+ * in the list.
+ */
+static void
+CreateLabel(Widget w)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+ Widget *child, *next_child;
+ int i;
+ Arg args[2];
+
+ if (smw->simple_menu.label_string == NULL ||
+ smw->simple_menu.label != NULL) {
+ XtAppWarning(XtWidgetToApplicationContext(w),
+ "Xaw Simple Menu Widget: label string is NULL or "
+ "label already exists, no label is being created.");
+ return;
+ }
+
+ XtSetArg(args[0], XtNlabel, smw->simple_menu.label_string);
+ XtSetArg(args[1], XtNjustify, XtJustifyCenter);
+ smw->simple_menu.label = (SmeObject)
+ XtCreateManagedWidget("menuLabel",
+ smw->simple_menu.label_class, w, args, TWO);
+
+ next_child = NULL;
+ for (child = smw->composite.children + smw->composite.num_children,
+ i = smw->composite.num_children; i > 0; i--, child--) {
+ if (next_child != NULL)
+ *next_child = *child;
+ next_child = child;
+ }
+ *child = (Widget)smw->simple_menu.label;
+}
+
+/*
+ * Function:
+ * Layout
+ *
+ * Arguments:
+ * w - See below
+ * width_ret - returned width
+ * height_ret - returned height
+ *
+ * Note:
+ * if width == NULL || height == NULL then it assumes the you do not care
+ * about the return values, and just want a relayout.
+ *
+ * if this is not the case then it will set width_ret and height_ret
+ * to be width and height that the child would get if it were layed out
+ * at this time.
+ *
+ * "w" can be the simple menu widget or any of its object children.
+ */
+static void
+Layout(Widget w, Dimension *width_ret, Dimension *height_ret)
+{
+ SmeObject current_entry;
+ SimpleMenuWidget smw;
+ Dimension width, height;
+ Boolean allow_change_size;
+ Widget kid;
+ Cardinal i, count, n;
+ int width_kid, height_kid, tmp_w, tmp_h;
+ short vadd, hadd, x_ins, y_ins;
+ Dimension *widths;
+
+ height = 0;
+
+ if (XtIsSubclass(w, simpleMenuWidgetClass)) {
+ smw = (SimpleMenuWidget)w;
+ current_entry = NULL;
+ }
+ else {
+ smw = (SimpleMenuWidget)XtParent(w);
+ current_entry = (SmeObject)w;
+ }
+
+ allow_change_size = (!XtIsRealized((Widget)smw)
+ || smw->shell.allow_shell_resize);
+
+ for (i = smw->simple_menu.label ? 1 : 0;
+ i < smw->composite.num_children;
+ i++) {
+ XtWidgetGeometry preferred;
+
+ kid = smw->composite.children[i];
+ if (!XtIsManaged(kid))
+ continue;
+ if (smw->simple_menu.row_height != 0)
+ XtHeight(kid) = smw->simple_menu.row_height;
+ XtQueryGeometry(kid, NULL, &preferred);
+ if (preferred.request_mode & CWWidth)
+ XtWidth(kid) = preferred.width;
+ }
+
+ if (smw->simple_menu.label
+ && XtIsManaged((Widget)smw->simple_menu.label)) {
+ XtWidgetGeometry preferred;
+
+ kid = (Widget)smw->simple_menu.label;
+ XtQueryGeometry(kid, NULL, &preferred);
+ if (preferred.request_mode & CWWidth)
+ XtWidth(kid) = preferred.width;
+ if (preferred.request_mode & CWHeight)
+ XtHeight(kid) = preferred.height;
+ }
+
+ /* reset */
+ if (!smw->simple_menu.menu_width)
+ XtWidth(smw) = 0;
+ if (!smw->simple_menu.menu_height)
+ XtHeight(smw) = 0;
+ if (!XtWidth(smw) || !XtHeight(smw))
+ MakeResizeRequest((Widget)smw);
+
+ widths = (Dimension *)XtMalloc(sizeof(Dimension));
+#ifndef OLDXAW
+ hadd = smw->simple_menu.left_margin;
+#else
+ hadd = 0;
+#endif
+ vadd = smw->simple_menu.top_margin;
+ if (smw->simple_menu.label)
+ vadd += XtHeight(smw->simple_menu.label);
+
+ count = 1;
+ width = tmp_w = tmp_h = n = 0;
+ height = vadd;
+
+ for (i = smw->simple_menu.label ? 1 : 0;
+ i < smw->composite.num_children;
+ i++) {
+ kid = smw->composite.children[i];
+ if (!XtIsManaged(kid))
+ continue;
+ width_kid = XtWidth(kid);
+ height_kid = XtHeight(kid);
+
+ if (n && (height + height_kid + smw->simple_menu.bottom_margin
+ > XtHeight(smw))) {
+ ++count;
+ widths = (Dimension *)XtRealloc((char *)widths,
+ sizeof(Dimension) * count);
+ widths[count - 1] = width_kid;
+ width += tmp_w;
+ tmp_w = width_kid;
+ height = height_kid + vadd;
+ }
+ else
+ height += height_kid;
+ if (height > tmp_h)
+ tmp_h = height;
+ if (width_kid > tmp_w)
+ widths[count - 1] = tmp_w = width_kid;
+ ++n;
+ }
+
+ height = tmp_h + smw->simple_menu.bottom_margin;
+ width += tmp_w;
+
+ if (smw->simple_menu.label && width < XtWidth(smw->simple_menu.label)) {
+ float inc;
+
+ inc = (XtWidth(smw->simple_menu.label) - width) / (float)count;
+ width = XtWidth(smw->simple_menu.label);
+ for (n = 0; n < count; n++)
+ widths[n] += inc;
+ }
+
+#ifndef OLDXAW
+ width += hadd + smw->simple_menu.right_margin;
+#endif
+
+ x_ins = n = count = 0;
+ tmp_w = widths[0];
+ tmp_h = vadd;
+
+ for (i = smw->simple_menu.label ? 1 : 0;
+ i < smw->composite.num_children;
+ i++) {
+ kid = smw->composite.children[i];
+ if (!XtIsManaged(kid))
+ continue;
+
+ height_kid = XtHeight(kid);
+
+ if (n && (tmp_h + height_kid + smw->simple_menu.bottom_margin
+ > XtHeight(smw))) {
+ x_ins = tmp_w;
+ y_ins = vadd;
+ ++count;
+ tmp_w += widths[count];
+ tmp_h = height_kid + vadd;
+ }
+ else {
+ y_ins = tmp_h;
+ tmp_h += height_kid;
+ }
+ ++n;
+
+ XtX(kid) = x_ins + hadd;
+ XtY(kid) = y_ins;
+ XtWidth(kid) = widths[count];
+ }
+
+ XtFree((char *)widths);
+
+ if (allow_change_size)
+ MakeSetValuesRequest((Widget) smw, width, height);
+
+ if (smw->simple_menu.label) {
+ XtX(smw->simple_menu.label) = 0;
+ XtY(smw->simple_menu.label) = smw->simple_menu.top_margin;
+ XtWidth(smw->simple_menu.label) = XtWidth(smw)
+#ifndef OLDXAW
+ - (smw->simple_menu.left_margin + smw->simple_menu.right_margin)
+#endif
+ ;
+ }
+ if (current_entry) {
+ if (width_ret)
+ *width_ret = XtWidth(current_entry);
+ if (height_ret)
+ *height_ret = XtHeight(current_entry);
+ }
+}
+
+/*
+ * Function:
+ * AddPositionAction
+ *
+ * Parameters:
+ * app_con - application context
+ * data - (not used)
+ *
+ * Description:
+ * Adds the XawPositionSimpleMenu action to the global
+ * action list for this appcon.
+ */
+/*ARGSUSED*/
+static void
+AddPositionAction(XtAppContext app_con, XPointer data)
+{
+ static XtActionsRec pos_action[] = {
+ {"XawPositionSimpleMenu", PositionMenuAction},
+ };
+
+ XtAppAddActions(app_con, pos_action, XtNumber(pos_action));
+}
+
+/*
+ * Function:
+ * FindMenu
+ *
+ * Parameters:
+ * widget - reference widget
+ * name - menu widget's name
+ *
+ * Description:
+ * Find the menu give a name and reference widget
+ *
+ * Returns:
+ * The menu widget or NULL.
+ */
+static Widget
+FindMenu(Widget widget, String name)
+{
+ Widget w, menu;
+
+ for (w = widget; w != NULL; w = XtParent(w))
+ if ((menu = XtNameToWidget(w, name)) != NULL)
+ return (menu);
+
+ return (NULL);
+}
+
+/*
+ * Function:
+ * PositionMenu
+ *
+ * Parameters:
+ * w - simple menu widget
+ * location - pointer the the position or NULL
+ *
+ * Description:
+ * Places the menu
+ */
+static void
+PositionMenu(Widget w, XPoint *location)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+ SmeObject entry;
+ XPoint t_point;
+
+ if (location == NULL) {
+ Window temp1, temp2;
+ int root_x, root_y, tempX, tempY;
+ unsigned int tempM;
+
+ location = &t_point;
+ if (XQueryPointer(XtDisplay(w), XtWindow(w), &temp1, &temp2,
+ &root_x, &root_y, &tempX, &tempY, &tempM) == False) {
+ XtAppWarning(XtWidgetToApplicationContext(w),
+ "Xaw Simple Menu Widget: "
+ "Could not find location of mouse pointer");
+ return;
+ }
+ location->x = (short) root_x;
+ location->y = (short) root_y;
+ }
+
+ /*
+ * The width will not be correct unless it is realized
+ */
+ XtRealizeWidget(w);
+
+ location->x -= XtWidth(w) >> 1;
+
+ if (smw->simple_menu.popup_entry == NULL)
+ entry = smw->simple_menu.label;
+ else
+ entry = smw->simple_menu.popup_entry;
+
+ if (entry != NULL)
+ location->y -= XtY(entry) + (XtHeight(entry) >> 1);
+
+ MoveMenu(w, location->x, location->y);
+}
+
+/*
+ * Function:
+ * MoveMenu
+ *
+ * Parameters:
+ * w - simple menu widget
+ * x - current location of the widget
+ * y - ""
+ *
+ * Description:
+ * Actually moves the menu, may force it to
+ * to be fully visable if menu_on_screen is True.
+ */
+static void
+MoveMenu(Widget w, int x, int y)
+{
+ Arg arglist[2];
+ Cardinal num_args = 0;
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+
+ if (smw->simple_menu.menu_on_screen) {
+ int width = XtWidth(w) + (XtBorderWidth(w) << 1);
+ int height = XtHeight(w) + (XtBorderWidth(w) << 1);
+
+ if (x >= 0) {
+ int scr_width = WidthOfScreen(XtScreen(w));
+
+ if (x + width > scr_width)
+ x = scr_width - width;
+ }
+ if (x < 0)
+ x = 0;
+
+ if (y >= 0) {
+ int scr_height = HeightOfScreen(XtScreen(w));
+
+ if (y + height > scr_height)
+ y = scr_height - height;
+ }
+ if (y < 0)
+ y = 0;
+ }
+
+ XtSetArg(arglist[num_args], XtNx, x); num_args++;
+ XtSetArg(arglist[num_args], XtNy, y); num_args++;
+ XtSetValues(w, arglist, num_args);
+}
+
+/*
+ * Function:
+ * ChangeCursorOnGrab
+ *
+ * Parameters:
+ * w - menu widget
+ * temp1 - not used
+ * temp2 - ""
+ *
+ * Description:
+ * Changes the cursor on the active grab to the one
+ * specified in out resource list.
+ */
+/*ARGSUSED*/
+static void
+ChangeCursorOnGrab(Widget w, XtPointer temp1, XtPointer temp2)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+
+ /*
+ * The event mask here is what is currently in the MIT implementation.
+ * There really needs to be a way to get the value of the mask out
+ * of the toolkit (CDP 5/26/89).
+ */
+ XChangeActivePointerGrab(XtDisplay(w), ButtonPressMask | ButtonReleaseMask,
+ smw->simple_menu.cursor,
+ XtLastTimestampProcessed(XtDisplay(w)));
+}
+
+/*
+ * Function:
+ * MakeSetValuesRequest
+ *
+ * Parameters:
+ * w - simple menu widget
+ * width - size requested
+ * height - ""
+ */
+static void
+MakeSetValuesRequest(Widget w, unsigned int width, unsigned int height)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+ Arg arglist[2];
+ Cardinal num_args = 0;
+
+ if (!smw->simple_menu.recursive_set_values) {
+ if (XtWidth(smw) != width || XtHeight(smw) != height) {
+ smw->simple_menu.recursive_set_values = True;
+ XtSetArg(arglist[num_args], XtNwidth, width); num_args++;
+ XtSetArg(arglist[num_args], XtNheight, height); num_args++;
+ XtSetValues(w, arglist, num_args);
+ }
+ else if (XtIsRealized((Widget)smw))
+ XawSimpleMenuRedisplay((Widget)smw, NULL, NULL);
+ }
+ smw->simple_menu.recursive_set_values = False;
+}
+
+static SmeObject
+DoGetEventEntry(Widget w, int x_loc, int y_loc)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+ SmeObject *entry;
+
+ ForAllChildren(smw, entry) {
+ if (!XtIsManaged((Widget)*entry))
+ continue;
+
+ if (x_loc > XtX(*entry)
+ && x_loc <= XtX(*entry) + XtWidth(*entry)
+ && y_loc > XtY(*entry)
+ && y_loc <= XtY(*entry) + XtHeight(*entry)) {
+ if (*entry == smw->simple_menu.label)
+ return (NULL); /* cannot select the label */
+ else
+ return (*entry);
+ }
+ }
+
+ return (NULL);
+}
+
+/*
+ * Function:
+ * GetEventEntry
+ *
+ * Parameters:
+ * w - simple menu widget
+ * event - X event
+ *
+ * Description:
+ * Gets an entry given an event that has X and Y coords.
+ *
+ * Returns:
+ * The entry that this point is in
+ */
+static SmeObject
+GetEventEntry(Widget w, XEvent *event)
+{
+ int x_loc, y_loc, x_root;
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+ SmeObject entry;
+ int warp, move;
+
+ switch (event->type) {
+ case MotionNotify:
+ x_loc = event->xmotion.x;
+ y_loc = event->xmotion.y;
+ x_root = event->xmotion.x_root;
+ break;
+ case EnterNotify:
+ case LeaveNotify:
+ x_loc = event->xcrossing.x;
+ y_loc = event->xcrossing.y;
+ x_root = event->xcrossing.x_root;
+ break;
+ case ButtonPress:
+ case ButtonRelease:
+ x_loc = event->xbutton.x;
+ y_loc = event->xbutton.y;
+ x_root = event->xbutton.x_root;
+ break;
+ default:
+ XtAppError(XtWidgetToApplicationContext(w),
+ "Unknown event type in GetEventEntry().");
+ return (NULL);
+ }
+
+ if (x_loc < 0 || x_loc >= XtWidth(smw) ||
+ y_loc < 0 || y_loc >= XtHeight(smw))
+ return (NULL);
+
+ /* Move the menu if it's outside the screen, does not check
+ * smw->simple_menu.menu_on_screen because menus is bigger than screen
+ */
+ if (x_root == WidthOfScreen(XtScreen(w)) - 1 &&
+ XtX(w) + XtWidth(w) + (XtBorderWidth(w)) > x_root) {
+ warp = -8;
+ if (smw->simple_menu.entry_set) {
+ entry = DoGetEventEntry(w,
+ XtX(smw->simple_menu.entry_set)
+ + XtWidth(smw->simple_menu.entry_set) + 1,
+ y_loc);
+ Unhighlight(w, event, NULL, NULL);
+ if (entry) {
+ warp = -(int)XtWidth(entry) >> 1;
+ move = x_loc - XtWidth(entry) - XtX(entry) + XtBorderWidth(w);
+ }
+ else {
+ warp = 0;
+ move = WidthOfScreen(XtScreen(w)) -
+ (XtX(w) + XtWidth(w) + (XtBorderWidth(w) << 1));
+ }
+ }
+ else {
+ warp = 0;
+ move = WidthOfScreen(XtScreen(w)) -
+ (XtX(w) + XtWidth(w) + (XtBorderWidth(w) << 1));
+ }
+ }
+ else if (x_root == 0 && XtX(w) < 0) {
+ warp = 8;
+ if (smw->simple_menu.entry_set) {
+ entry = DoGetEventEntry(w, XtX(smw->simple_menu.entry_set) - 1,
+ y_loc);
+ Unhighlight(w, event, NULL, NULL);
+ if (entry) {
+ warp = XtWidth(entry) >> 1;
+ move = x_loc - XtX(entry);
+ }
+ else
+ move = x_loc + XtBorderWidth(w);
+ }
+ else
+ move = x_loc + XtBorderWidth(w);
+ }
+ else
+ move = warp = 0;
+
+ if (move)
+ XtMoveWidget(w, XtX(w) + move, XtY(w));
+ if (warp)
+ XWarpPointer(XtDisplay(w), None, None, 0, 0, 0, 0, warp, 0);
+
+ return (DoGetEventEntry(w, x_loc, y_loc));
+}
+
+static void
+CalculateNewSize(Widget w, Dimension *width_return, Dimension *height_return)
+{
+ SimpleMenuWidget xaw = (SimpleMenuWidget)w;
+ Widget kid;
+ Cardinal i;
+ int width_kid, height_kid;
+ int width, height, tmp_w, tmp_h, max_dim;
+ short vadd, hadd;
+ int n, columns, test_h, num_children = 0;
+ Boolean try_layout = False;
+
+#ifndef OLDXAW
+ hadd = xaw->simple_menu.left_margin + xaw->simple_menu.right_margin;
+#else
+ hadd = 0;
+#endif
+ vadd = xaw->simple_menu.top_margin + xaw->simple_menu.bottom_margin;
+ if (xaw->simple_menu.label)
+ vadd += XtHeight(xaw->simple_menu.label);
+
+ if (*height_return)
+ max_dim = *height_return;
+ else if (!XtHeight(w)) {
+ max_dim = HeightOfScreen(XtScreen(w));
+ try_layout = True;
+ }
+ else
+ max_dim = XtHeight(w);
+ max_dim -= vadd;
+
+ width = height = tmp_w = tmp_h = n = test_h = 0;
+ columns = 1;
+ for (i = xaw->simple_menu.label ? 1 : 0;
+ i < xaw->composite.num_children;
+ i++) {
+ kid = xaw->composite.children[i];
+ if (!XtIsManaged(kid))
+ continue;
+ ++num_children;
+ width_kid = XtWidth(kid);
+ height_kid = XtHeight(kid);
+
+ if (try_layout) {
+ if (!test_h)
+ test_h = height_kid;
+ else if (test_h != height_kid)
+ try_layout = False;
+ }
+
+ if (n && (height + height_kid > max_dim)) {
+ ++columns;
+ width += tmp_w;
+ tmp_w = width_kid;
+ height = height_kid;
+ }
+ else
+ height += height_kid;
+ if (height > tmp_h)
+ tmp_h = height;
+ if (width_kid > tmp_w)
+ tmp_w = width_kid;
+ ++n;
+ }
+
+ height = tmp_h + vadd;
+ width += tmp_w + hadd;
+
+ if (xaw->simple_menu.label)
+ width = XawMax(width, XtWidth(xaw->simple_menu.label) + hadd);
+
+ *width_return = width;
+ *height_return = height;
+
+ if (try_layout && columns > 1 && num_children > 2) {
+ int space;
+
+ height = test_h * (xaw->simple_menu.label ?
+ num_children - 1 :
+ num_children);
+
+ max_dim -= max_dim % test_h;
+ space = max_dim - (height % max_dim);
+ if (space >= test_h * columns) {
+ height = max_dim - space / columns;
+ if (height % test_h)
+ height += test_h - (height % test_h);
+ *height_return = height + vadd;
+ CalculateNewSize(w, width_return, height_return);
+ }
+ }
+}
+
+static void
+MakeResizeRequest(Widget w)
+{
+ int tries;
+ Dimension width, height;
+
+ width = XtWidth(w);
+ height = XtHeight(w);
+
+ for (tries = 0; tries < 100; tries++) {
+ CalculateNewSize(w, &width, &height);
+ if (width == XtWidth(w) && height == XtHeight(w))
+ break;
+ if (XtMakeResizeRequest(w, width, height, &width, &height) ==
+ XtGeometryNo)
+ break;
+ }
+}
+
+#ifndef OLDXAW
+static void
+Popdown(Widget w, XEvent *event, String *params, Cardinal *num_params)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+
+ while (XtParent(w) &&
+ XtIsSubclass(XtParent(w), simpleMenuWidgetClass)) {
+ if (((SimpleMenuWidget)XtParent(w))->simple_menu.sub_menu == (Widget)w) {
+ w = XtParent(w);
+ smw = (SimpleMenuWidget)w;
+ smw->simple_menu.entry_set = NULL;
+ }
+ else
+ break;
+ }
+
+ smw->simple_menu.state |= SMW_UNMAPPING;
+ if (smw->simple_menu.sub_menu)
+ PopdownSubMenu(smw);
+ XtCallActionProc(w, "XtMenuPopdown", event, params, *num_params);
+}
+
+static void
+PopupSubMenu(SimpleMenuWidget smw)
+{
+ Arg args[2];
+ Cardinal num_args;
+ Widget menu;
+ SmeBSBObject entry = (SmeBSBObject)smw->simple_menu.entry_set;
+ Position menu_x, menu_y;
+ Bool popleft;
+
+ if (entry->sme_bsb.menu_name == NULL)
+ return;
+
+ if ((menu = FindMenu((Widget)smw, entry->sme_bsb.menu_name)) == NULL)
+ return;
+
+ smw->simple_menu.sub_menu = menu;
+
+ if (!XtIsRealized(menu))
+ XtRealizeWidget(menu);
+
+ popleft = (smw->simple_menu.state & SMW_POPLEFT) != 0;
+
+ if (popleft)
+ XtTranslateCoords((Widget)smw, -(int)XtWidth(menu),
+ XtY(entry) - XtBorderWidth(menu), &menu_x, &menu_y);
+ else
+ XtTranslateCoords((Widget)smw, XtWidth(smw), XtY(entry)
+ - XtBorderWidth(menu), &menu_x, &menu_y);
+
+ if (!popleft && menu_x >= 0) {
+ int scr_width = WidthOfScreen(XtScreen(menu));
+
+ if (menu_x + XtWidth(menu) > scr_width) {
+ menu_x -= XtWidth(menu) + XtWidth(smw);
+ popleft = True;
+ }
+ }
+ else if (popleft && menu_x < 0) {
+ menu_x = 0;
+ popleft = False;
+ }
+ if (menu_y >= 0) {
+ int scr_height = HeightOfScreen(XtScreen(menu));
+
+ if (menu_y + XtHeight(menu) > scr_height)
+ menu_y = scr_height - XtHeight(menu) - XtBorderWidth(menu);
+ }
+ if (menu_y < 0)
+ menu_y = 0;
+
+ num_args = 0;
+ XtSetArg(args[num_args], XtNx, menu_x); num_args++;
+ XtSetArg(args[num_args], XtNy, menu_y); num_args++;
+ XtSetValues(menu, args, num_args);
+
+ if (popleft)
+ ((SimpleMenuWidget)menu)->simple_menu.state |= SMW_POPLEFT;
+ else
+ ((SimpleMenuWidget)menu)->simple_menu.state &= ~SMW_POPLEFT;
+
+ XtPopup(menu, XtGrabNone);
+}
+
+static void
+PopdownSubMenu(SimpleMenuWidget smw)
+{
+ SimpleMenuWidget menu = (SimpleMenuWidget)smw->simple_menu.sub_menu;
+
+ if (!menu)
+ return;
+
+ menu->simple_menu.state |= SMW_UNMAPPING;
+ PopdownSubMenu(menu);
+
+ XtPopdown((Widget)menu);
+
+ smw->simple_menu.sub_menu = NULL;
+}
+
+/*ARGSUSED*/
+static void
+PopupCB(Widget w, XtPointer client_data, XtPointer call_data)
+{
+ SimpleMenuWidget smw = (SimpleMenuWidget)w;
+
+ smw->simple_menu.state &= ~(SMW_UNMAPPING | SMW_POPLEFT);
+}
+#endif /* OLDXAW */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 17:23:23 +0000