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318 lines
6.8 KiB
C
318 lines
6.8 KiB
C
#include "lwlib-Xol.h"
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#include <X11/StringDefs.h>
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#include <X11/IntrinsicP.h>
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#include <X11/CompositeP.h>
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#include <X11/Shell.h>
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#include <Xol/Menu.h>
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#include <Xol/OpenLook.h>
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#include <Xol/MenuButton.h>
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#include <Xol/OblongButt.h>
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#include <Xol/ControlAre.h>
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#include <Xol/Stub.h>
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#include <Xol/StaticText.h>
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/* forward declarations */
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static void
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update_menu_widget (widget_instance* instance, Widget widget,
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widget_value* val);
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/* Menu callbacks */
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static void
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pre_hook (Widget w, caddr_t client_data, caddr_t call_data)
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{
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OlVirtualEvent ve = (OlVirtualEvent)call_data;
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widget_instance* instance = (widget_instance*)client_data;
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if (w->core.being_destroyed)
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return;
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if (XtParent (w) == instance->widget)
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{
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if (ve->xevent->type == ButtonPress && instance->info->pre_activate_cb)
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instance->info->pre_activate_cb (instance->widget, instance->info->id,
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NULL);
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}
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}
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static void
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post_hook (Widget w, caddr_t client_data, caddr_t call_data)
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{
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widget_instance* instance = (widget_instance*)client_data;
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if (w->core.being_destroyed)
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return;
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if (instance->info->post_activate_cb)
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instance->info->post_activate_cb (w, instance->info->id, NULL);
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}
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static void
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pick_hook (Widget w, caddr_t client_data, caddr_t call_data)
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{
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widget_instance* instance = 0;
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widget_value* val = (widget_value*)client_data;
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if (w->core.being_destroyed)
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return;
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XtVaGetValues (w, XtNuserData, &instance, 0);
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if (!instance)
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return;
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if (instance->info->selection_cb && val && val->enabled
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&& !val->contents)
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instance->info->selection_cb (w, instance->info->id, val->call_data);
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}
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/* creation functions */
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static Widget
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xol_create_menubar (widget_instance* instance)
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{
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Widget widget =
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XtVaCreateWidget (instance->info->name, controlAreaWidgetClass,
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instance->parent, 0);
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return widget;
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}
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static Widget
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xol_create_popup_menu (widget_instance* instance)
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{
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Widget popup_shell =
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XtCreatePopupShell (instance->info->name, menuShellWidgetClass,
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instance->parent, NULL, 0);
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return popup_shell;
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}
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widget_creation_entry
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xol_creation_table [] =
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{
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{"menubar", xol_create_menubar},
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{"popup", xol_create_popup_menu},
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{NULL, NULL}
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};
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Widget
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xol_create_dialog (widget_instance* instance)
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{
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return NULL;
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}
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Boolean
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lw_olit_widget_p (Widget widget)
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{
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return True;
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}
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/* update functions */
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static void
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destroy_all_children (Widget widget)
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{
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Widget* children;
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unsigned int number;
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int i;
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children = (Widget *) XtCompositeChildren (widget, &number);
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if (children)
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{
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/* Unmanage all children and destroy them. They will only be
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* really destroyed when we get out of DispatchEvent. */
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for (i = 0; i < number; i++)
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{
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Widget child = children [i];
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if (!child->core.being_destroyed)
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{
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XtUnmanageChild (child);
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XtDestroyWidget (child);
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}
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}
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XtFree (children);
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}
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}
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static Boolean
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all_dashes_p (char* s)
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{
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char* t;
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for (t = s; *t; t++)
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if (*t != '-')
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return False;
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return True;
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}
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static void
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make_menu_in_widget (widget_instance* instance, Widget widget,
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widget_value* val)
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{
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widget_value* cur;
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Widget button;
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Arg al [256];
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int ac;
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String label;
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for (cur = val; cur; cur = cur->next)
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{
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ac = 0;
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XtSetArg (al [ac], XtNsensitive, cur->enabled); ac++;
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XtSetArg (al [ac], XtNuserData, instance); ac++;
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XtSetArg (al [ac], XtNacceleratorText, cur->key); ac++;
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/* label = (char *) resource_string (widget, cur->name);*/
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label = cur->name;
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if (label)
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{
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XtSetArg (al [ac], XtNlabel, label); ac++;
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}
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if (all_dashes_p (cur->name))
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{
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/* no separator in OpenLook just make some space. */
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XtSetArg (al [ac], XtNheight, 5); ac++;
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XtSetArg (al [ac], XtNwidth, 5); ac++;
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button = XtCreateWidget (cur->name, stubWidgetClass, widget, al, ac);
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}
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else if (!cur->contents)
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{
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if (!cur->call_data)
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button =
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XtCreateManagedWidget (cur->name, staticTextWidgetClass, widget,
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al, ac);
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else
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{
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button =
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XtCreateManagedWidget (cur->name, oblongButtonWidgetClass,
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widget, al, ac);
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XtAddCallback (button, XtNselect, pick_hook, cur);
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}
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}
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else
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{
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Widget menu = NULL;
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button =
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XtCreateManagedWidget (cur->name, menuButtonWidgetClass, widget,
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al, ac);
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XtVaGetValues (button, XtNmenuPane, &menu, 0);
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if (!menu)
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abort ();
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make_menu_in_widget (instance, menu, cur->contents);
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OlAddCallback (button, XtNconsumeEvent, pre_hook, instance);
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}
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}
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}
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static void
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update_one_menu_entry (widget_instance* instance, Widget widget,
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widget_value* val)
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{
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Arg al [256];
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int ac;
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Widget menu;
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widget_value* contents;
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if (val->change == NO_CHANGE)
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return;
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/* update the sensitivity */
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XtVaSetValues (widget, XtNsensitive, val->enabled, 0);
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/* update the pulldown/pullaside as needed */
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ac = 0;
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menu = NULL;
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XtVaGetValues (widget, XtNmenuPane, &menu, 0);
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contents = val->contents;
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if (!menu)
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{
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if (contents)
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{
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/* in OLIT this would have to be a structural change on the
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button. */
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abort ();
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}
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}
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else if (!contents)
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{
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/* in OLIT this would have to be a structural change on the button. */
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abort ();
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}
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else if (contents->change != NO_CHANGE)
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update_menu_widget (instance, menu, val);
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}
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static void
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update_menu_widget (widget_instance* instance, Widget widget,
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widget_value* val)
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{
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if (val->change == STRUCTURAL_CHANGE
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|| val->contents->change == STRUCTURAL_CHANGE)
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{
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destroy_all_children (widget);
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make_menu_in_widget (instance, widget, val->contents);
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}
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else
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{
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/* Update all the buttons of the composite widget in order. */
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Widget* children;
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unsigned int num_children;
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int i;
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widget_value* cur;
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children = (Widget *) XtCompositeChildren (widget, &num_children);
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if (children)
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{
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for (i = 0, cur = val->contents; i < num_children; i++)
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{
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if (!cur)
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abort ();
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if (children [i]->core.being_destroyed
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|| strcmp (XtName (children [i]), cur->name))
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continue;
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update_one_menu_entry (instance, children [i], cur);
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cur = cur->next;
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}
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XtFree (children);
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}
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if (cur)
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abort ();
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}
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}
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void
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xol_update_one_widget (widget_instance* instance, Widget widget,
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widget_value* val, Boolean deep_p)
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{
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Widget menu = widget;
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if (XtIsShell (widget))
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XtVaGetValues (widget, XtNmenuPane, &menu, 0);
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update_menu_widget (instance, menu, val);
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}
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void
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xol_update_one_value (widget_instance* instance, Widget widget,
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widget_value* val)
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{
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return;
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}
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void
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xol_pop_instance (widget_instance* instance, Boolean up)
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{
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}
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void
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xol_popup_menu (Widget widget)
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{
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OlMenuPost (widget);
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}
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/* Destruction of instances */
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void
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xol_destroy_instance (widget_instance* instance)
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{
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XtDestroyWidget (instance->widget);
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}
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