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-rw-r--r--libXaw/src/Toggle.c632
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diff --git a/libXaw/src/Toggle.c b/libXaw/src/Toggle.c
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+++ b/libXaw/src/Toggle.c
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+/* $Xorg: Toggle.c,v 1.4 2001/02/09 02:03:47 xorgcvs Exp $ */
+
+/*
+
+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.
+
+*/
+/* $XFree86: xc/lib/Xaw/Toggle.c,v 1.8 2001/08/23 00:03:20 dawes Exp $ */
+
+/*
+ * Author: Chris D. Peterson
+ * MIT X Consortium
+ * kit@expo.lcs.mit.edu
+ *
+ * Date: January 12, 1989
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <stdio.h>
+#include <X11/IntrinsicP.h>
+#include <X11/StringDefs.h>
+#include <X11/Xmu/Converters.h>
+#include <X11/Xmu/Misc.h>
+#include <X11/Xmu/SysUtil.h>
+#include <X11/Xaw/ToggleP.h>
+#include <X11/Xaw/XawInit.h>
+
+/*
+ * Class Methods
+ */
+static void XawToggleClassInitialize(void);
+static void XawToggleInitialize(Widget, Widget, ArgList, Cardinal*);
+static Boolean XawToggleSetValues(Widget, Widget, Widget, ArgList, Cardinal*);
+
+/*
+ * Prototypes
+ */
+static void AddToRadioGroup(RadioGroup*, Widget);
+static void CreateRadioGroup(Widget, Widget);
+static RadioGroup *GetRadioGroup(Widget);
+static void RemoveFromRadioGroup(Widget);
+static void TurnOffRadioSiblings(Widget);
+static void XawToggleDestroy(Widget, XtPointer, XtPointer);
+
+/*
+ * Actions
+ */
+static void Notify(Widget, XEvent*, String*, Cardinal*);
+static void Toggle(Widget, XEvent*, String*, Cardinal*);
+static void ToggleSet(Widget, XEvent*, String*, Cardinal*);
+
+/*
+ * Initialization
+ */
+/*
+ * The order of toggle and notify are important, as the state has
+ * to be set when we call the notify proc
+ */
+static char defaultTranslations[] =
+"<Enter>:" "highlight(Always)\n"
+"<Leave>:" "unhighlight()\n"
+"<Btn1Down>,<Btn1Up>:" "toggle() notify()\n"
+;
+
+#define offset(field) XtOffsetOf(ToggleRec, field)
+static XtResource resources[] = {
+ {
+ XtNstate,
+ XtCState,
+ XtRBoolean,
+ sizeof(Boolean),
+ offset(command.set),
+ XtRString,
+ "off"
+ },
+ {
+ XtNradioGroup,
+ XtCWidget,
+ XtRWidget,
+ sizeof(Widget),
+ offset(toggle.widget),
+ XtRWidget,
+ NULL
+ },
+ {
+ XtNradioData,
+ XtCRadioData,
+ XtRPointer,
+ sizeof(XtPointer),
+ offset(toggle.radio_data),
+ XtRPointer,
+ NULL
+ },
+};
+#undef offset
+
+static XtActionsRec actionsList[] = {
+ {"toggle", Toggle},
+ {"notify", Notify},
+ {"set", ToggleSet},
+};
+
+#define Superclass ((CommandWidgetClass)&commandClassRec)
+ToggleClassRec toggleClassRec = {
+ /* core */
+ {
+ (WidgetClass)Superclass, /* superclass */
+ "Toggle", /* class_name */
+ sizeof(ToggleRec), /* size */
+ XawToggleClassInitialize, /* class_initialize */
+ NULL, /* class_part_initialize */
+ False, /* class_inited */
+ XawToggleInitialize, /* initialize */
+ NULL, /* initialize_hook */
+ XtInheritRealize, /* realize */
+ actionsList, /* actions */
+ XtNumber(actionsList), /* num_actions */
+ resources, /* resources */
+ XtNumber(resources), /* resource_count */
+ NULLQUARK, /* xrm_class */
+ False, /* compress_motion */
+ True, /* compress_exposure */
+ True, /* compress_enterleave */
+ False, /* visible_interest */
+ NULL, /* destroy */
+ XtInheritResize, /* resize */
+ XtInheritExpose, /* expose */
+ XawToggleSetValues, /* set_values */
+ NULL, /* set_values_hook */
+ XtInheritSetValuesAlmost, /* set_values_almost */
+ NULL, /* get_values_hook */
+ NULL, /* accept_focus */
+ XtVersion, /* version */
+ NULL, /* callback_private */
+ defaultTranslations, /* tm_table */
+ XtInheritQueryGeometry, /* query_geometry */
+ XtInheritDisplayAccelerator, /* display_accelerator */
+ NULL, /* extension */
+ },
+ /* simple */
+ {
+ XtInheritChangeSensitive, /* change_sensitive */
+ },
+ /* label */
+ {
+ NULL, /* extension */
+ },
+ /* command */
+ {
+ NULL, /* extension */
+ },
+ /* toggle */
+ {
+ NULL, /* Set */
+ NULL, /* Unset */
+ NULL, /* extension */
+ }
+};
+
+WidgetClass toggleWidgetClass = (WidgetClass)&toggleClassRec;
+
+/*
+ * Impelementation
+ */
+static void
+XawToggleClassInitialize(void)
+{
+ XtActionList actions;
+ Cardinal num_actions;
+ Cardinal i;
+ ToggleWidgetClass cclass = (ToggleWidgetClass)toggleWidgetClass;
+ static XtConvertArgRec parentCvtArgs[] = {
+ {XtBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.parent),
+ sizeof(Widget)}
+ };
+
+ XawInitializeWidgetSet();
+ XtSetTypeConverter(XtRString, XtRWidget, XmuNewCvtStringToWidget,
+ parentCvtArgs, XtNumber(parentCvtArgs),
+ XtCacheNone, NULL);
+ XtSetTypeConverter(XtRWidget, XtRString, XmuCvtWidgetToString,
+ NULL, 0, XtCacheNone, NULL);
+
+ /*
+ * Find the set and unset actions in the command widget's action table
+ */
+ XtGetActionList(commandWidgetClass, &actions, &num_actions);
+
+ for (i = 0 ; i < num_actions ; i++) {
+ if (streq(actions[i].string, "set"))
+ cclass->toggle_class.Set = actions[i].proc;
+ if (streq(actions[i].string, "unset"))
+ cclass->toggle_class.Unset = actions[i].proc;
+
+ if (cclass->toggle_class.Set != NULL &&
+ cclass->toggle_class.Unset != NULL) {
+ XtFree((char *)actions);
+ return;
+ }
+ }
+
+ /* We should never get here */
+ XtError("Aborting, due to errors resolving bindings in the Toggle widget.");
+}
+
+/*ARGSUSED*/
+static void
+XawToggleInitialize(Widget request, Widget cnew,
+ ArgList args, Cardinal *num_args)
+{
+ ToggleWidget tw = (ToggleWidget)cnew;
+ ToggleWidget tw_req = (ToggleWidget)request;
+
+ tw->toggle.radio_group = NULL;
+
+ if (tw->toggle.radio_data == NULL)
+ tw->toggle.radio_data = (XtPointer)cnew->core.name;
+
+ if (tw->toggle.widget != NULL) {
+ if (GetRadioGroup(tw->toggle.widget) == NULL)
+ CreateRadioGroup(cnew, tw->toggle.widget);
+ else
+ AddToRadioGroup(GetRadioGroup(tw->toggle.widget), cnew);
+ }
+ XtAddCallback(cnew, XtNdestroyCallback, XawToggleDestroy, NULL);
+
+ /*
+ * Command widget assumes that the widget is unset, so we only
+ * have to handle the case where it needs to be set
+ *
+ * If this widget is in a radio group then it may cause another
+ * widget to be unset, thus calling the notify proceedure
+ *
+ * I want to set the toggle if the user set the state to "On" in
+ * the resource group, reguardless of what my ancestors did
+ */
+ if (tw_req->command.set)
+ ToggleSet(cnew, NULL, NULL, NULL);
+}
+
+/*ARGSUSED*/
+static void
+ToggleSet(Widget w, XEvent *event, String *params, Cardinal *num_params)
+{
+ ToggleWidgetClass cclass = (ToggleWidgetClass)w->core.widget_class;
+
+ TurnOffRadioSiblings(w);
+ cclass->toggle_class.Set(w, event, NULL, NULL);
+}
+
+static void
+Toggle(Widget w, XEvent *event, String *params, Cardinal *num_params)
+{
+ ToggleWidget tw = (ToggleWidget)w;
+ ToggleWidgetClass cclass = (ToggleWidgetClass)w->core.widget_class;
+
+ if (tw->command.set)
+ cclass->toggle_class.Unset(w, event, NULL, NULL);
+ else
+ ToggleSet(w, event, params, num_params);
+}
+
+/*ARGSUSED*/
+static void
+Notify(Widget w, XEvent *event, String *params, Cardinal *num_params)
+{
+ ToggleWidget tw = (ToggleWidget)w;
+ long antilint = tw->command.set;
+
+ XtCallCallbacks(w, XtNcallback, (XtPointer)antilint);
+}
+
+/*ARGSUSED*/
+static Boolean
+XawToggleSetValues(Widget current, Widget request, Widget cnew,
+ ArgList args, Cardinal *num_args)
+{
+ ToggleWidget oldtw = (ToggleWidget)current;
+ ToggleWidget tw = (ToggleWidget)cnew;
+ ToggleWidget rtw = (ToggleWidget)request;
+
+ if (oldtw->toggle.widget != tw->toggle.widget)
+ XawToggleChangeRadioGroup(cnew, tw->toggle.widget);
+
+ if (!tw->core.sensitive && oldtw->core.sensitive && rtw->command.set)
+ tw->command.set = True;
+
+ if (oldtw->command.set != tw->command.set) {
+ tw->command.set = oldtw->command.set;
+ Toggle(cnew, NULL, NULL, NULL);
+ }
+
+ return (False);
+}
+
+/*
+ * Function:
+ * XawToggleDestroy
+ *
+ * Parameters:
+ * w - toggle widget that is being destroyed
+ * temp1 - not used
+ * temp2 - ""
+ *
+ * Description:
+ * Destroy Callback for toggle widget.
+ */
+/*ARGSUSED*/
+static void
+XawToggleDestroy(Widget w, XtPointer temp1, XtPointer temp2)
+{
+ RemoveFromRadioGroup(w);
+}
+
+/*
+ * Function:
+ * GetRadioGroup
+ *
+ * Parameters:
+ * w - toggle widget who's radio group we are getting
+ *
+ * Description:
+ * Gets the radio group associated with a give toggle widget.
+ *
+ * Returns:
+ * The radio group associated with this toggle group
+ */
+static RadioGroup *
+GetRadioGroup(Widget w)
+{
+ ToggleWidget tw = (ToggleWidget)w;
+
+ if (tw == NULL)
+ return (NULL);
+
+ return (tw->toggle.radio_group);
+}
+
+/*
+ * Function:
+ * CreateRadioGroup
+ *
+ * Parameters:
+ * w1 - toggle widgets to add to the radio group
+ * w2 - ""
+ *
+ * Description:
+ * Creates a radio group. give two widgets.
+ *
+ * Note:
+ * A pointer to the group is added to each widget's radio_group field.
+ */
+static void
+CreateRadioGroup(Widget w1, Widget w2)
+{
+ ToggleWidget tw1 = (ToggleWidget)w1;
+ ToggleWidget tw2 = (ToggleWidget) w2;
+
+ if (tw1->toggle.radio_group != NULL || tw2->toggle.radio_group != NULL)
+ XtAppWarning(XtWidgetToApplicationContext(w1),
+ "Toggle Widget Error - Attempting to create a "
+ "new toggle group, when one already exists.");
+
+ AddToRadioGroup(NULL, w1);
+ AddToRadioGroup(GetRadioGroup(w1), w2);
+}
+
+/*
+ * Function:
+ * AddToRadioGroup
+ *
+ * Parameters:
+ * group - element of the radio group the we are adding to
+ * w - new toggle widget to add to the group
+ *
+ * Description:
+ * Adds a toggle to the radio group.
+ */
+static void
+AddToRadioGroup(RadioGroup *group, Widget w)
+{
+ ToggleWidget tw = (ToggleWidget)w;
+ RadioGroup *local;
+
+ local = (RadioGroup *)XtMalloc(sizeof(RadioGroup));
+ local->widget = w;
+ tw->toggle.radio_group = local;
+
+ if (group == NULL) { /* Creating new group */
+ group = local;
+ group->next = NULL;
+ group->prev = NULL;
+ return;
+ }
+ local->prev = group; /* Adding to previous group */
+ if ((local->next = group->next) != NULL)
+ local->next->prev = local;
+ group->next = local;
+}
+
+/*
+ * Function:
+ * TurnOffRadioSiblings
+ *
+ * Parameters:
+ * widget - toggle widget
+ *
+ * Description:
+ * Deactivates all radio siblings.
+ */
+static void
+TurnOffRadioSiblings(Widget w)
+{
+ RadioGroup *group;
+ ToggleWidgetClass cclass = (ToggleWidgetClass)w->core.widget_class;
+
+ if ((group = GetRadioGroup(w)) == NULL) /* Punt if there is no group */
+ return;
+
+ /* Go to the top of the group */
+ for (; group->prev != NULL ; group = group->prev)
+ ;
+
+ while (group != NULL) {
+ ToggleWidget local_tog = (ToggleWidget)group->widget;
+
+ if (local_tog->command.set) {
+ cclass->toggle_class.Unset(group->widget, NULL, NULL, NULL);
+ Notify(group->widget, NULL, NULL, NULL);
+ }
+ group = group->next;
+ }
+}
+
+/*
+ * Function:
+ * RemoveFromRadioGroup
+ *
+ * Parameters:
+ * w - toggle widget to remove
+ *
+ * Description:
+ * Removes a toggle from a RadioGroup.
+ */
+static void
+RemoveFromRadioGroup(Widget w)
+{
+ RadioGroup *group = GetRadioGroup(w);
+ if (group != NULL) {
+ if (group->prev != NULL)
+ (group->prev)->next = group->next;
+ if (group->next != NULL)
+ (group->next)->prev = group->prev;
+ XtFree((char *)group);
+ }
+}
+
+/*
+ * Function:
+ * XawToggleChangeRadioGroup
+ *
+ * Parameters:
+ * w - toggle widget to change groups
+ * radio_group - any widget in the new group
+ *
+ * Description:
+ * Allows a toggle widget to change radio groups.
+ */
+void
+XawToggleChangeRadioGroup(Widget w, Widget radio_group)
+{
+ ToggleWidget tw = (ToggleWidget)w;
+ RadioGroup *group;
+
+ RemoveFromRadioGroup(w);
+
+ /*
+ * If the toggle that we are about to add is set then we will
+ * unset all toggles in the new radio group
+ */
+
+ if (tw->command.set && radio_group != NULL)
+ XawToggleUnsetCurrent(radio_group);
+
+ if (radio_group != NULL) {
+ if ((group = GetRadioGroup(radio_group)) == NULL)
+ CreateRadioGroup(w, radio_group);
+ else
+ AddToRadioGroup(group, w);
+ }
+}
+
+/*
+ * Function:
+ * XawToggleGetCurrent
+ *
+ * Parameters:
+ * w - any toggle widget in the toggle group
+ *
+ * Description:
+ * Returns the RadioData associated with the toggle
+ * widget that is currently active in a toggle group.
+ *
+ * Returns:
+ * The XtNradioData associated with the toggle widget
+ */
+XtPointer
+XawToggleGetCurrent(Widget w)
+{
+ RadioGroup *group;
+
+ if ((group = GetRadioGroup(w)) == NULL)
+ return (NULL);
+
+ for (; group->prev != NULL ; group = group->prev)
+ ;
+
+ while (group != NULL) {
+ ToggleWidget local_tog = (ToggleWidget)group->widget;
+
+ if (local_tog->command.set)
+ return (local_tog->toggle.radio_data);
+ group = group->next;
+ }
+
+ return (NULL);
+}
+
+/*
+ * Function:
+ * XawToggleSetCurrent
+ *
+ * Parameters:
+ * radio_group - any toggle widget in the toggle group
+ * radio_data - radio data of the toggle widget to set
+ *
+ * Description:
+ * Sets the Toggle widget associated with the radio_data specified.
+ */
+void
+XawToggleSetCurrent(Widget radio_group, XtPointer radio_data)
+{
+ RadioGroup *group;
+ ToggleWidget local_tog;
+
+ /* Special case of no radio group */
+
+ if ((group = GetRadioGroup(radio_group)) == NULL) {
+ local_tog = (ToggleWidget)radio_group;
+
+ if (local_tog->toggle.radio_data == radio_data &&
+ !local_tog->command.set) {
+ ToggleSet(radio_group, NULL, NULL, NULL);
+ Notify(radio_group, NULL, NULL, NULL);
+ }
+ return;
+ }
+
+ /*
+ * find top of radio_roup
+ */
+ for (; group->prev != NULL ; group = group->prev)
+ ;
+
+ /*
+ * search for matching radio data
+ */
+ while (group != NULL) {
+ local_tog = (ToggleWidget)group->widget;
+
+ if (local_tog->toggle.radio_data == radio_data) {
+ if (!local_tog->command.set) { /* if not already set */
+ ToggleSet(group->widget, NULL, NULL, NULL);
+ Notify(group->widget, NULL, NULL, NULL);
+ }
+ return; /* found it, done */
+ }
+ group = group->next;
+ }
+}
+
+/*
+ * Function:
+ * XawToggleUnsetCurrent
+ *
+ * Parameters:
+ * radio_group - any toggle widget in the toggle group
+ *
+ * Description:
+ * Unsets all Toggles in the radio_group specified.
+ */
+void
+XawToggleUnsetCurrent(Widget radio_group)
+{
+ ToggleWidgetClass cclass;
+ ToggleWidget local_tog = (ToggleWidget)radio_group;
+
+ /* Special Case no radio group */
+
+ if (local_tog->command.set) {
+ cclass = (ToggleWidgetClass)local_tog->core.widget_class;
+ cclass->toggle_class.Unset(radio_group, NULL, NULL, NULL);
+ Notify(radio_group, NULL, NULL, NULL);
+ }
+ if (GetRadioGroup(radio_group) == NULL)
+ return;
+
+ TurnOffRadioSiblings(radio_group);
+}
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