ui/motif/menu.c

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2014 Olaf Wintermann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>

#include "menu.h"
#include "button.h"
#include "toolkit.h"
#include "stock.h"
#include "container.h"
#include "../common/context.h"
#include "../common/menu.h"
#include "../ui/window.h"

#include <cx/linked_list.h>
#include <cx/array_list.h>


static ui_menu_add_f createMenuItem[] = {
    /* UI_MENU                 */ add_menu_widget,
    /* UI_MENU_ITEM            */ add_menuitem_widget,
    /* UI_MENU_CHECK_ITEM      */ add_checkitem_widget,
    /* UI_MENU_RADIO_ITEM      */ add_radioitem_widget,
    /* UI_MENU_ITEM_LIST       */ add_menuitem_list_widget,
    /* UI_MENU_CHECKITEM_LIST  */ add_menuitem_list_widget,
    /* UI_MENU_RADIOITEM_LIST  */ add_menuitem_list_widget,
    /* UI_MENU_SEPARATOR       */ add_menuseparator_widget
};

void ui_create_menubar(UiObject *obj, Widget window) {
    UiMenu *menus_begin = uic_get_menu_list();
    if(!menus_begin) {
        return;
    }
    
    Widget menubar = XmCreateMenuBar(window, "menubar", NULL, 0);
    XtManageChild(menubar);
    
    UiMenu *ls = menus_begin;
    while(ls) {
        UiMenu *menu = ls;
        add_menu_widget(menubar, 0, &menu->item, obj);
        ls = (UiMenu*)ls->item.next;
    }
}

void ui_add_menu_items(Widget parent, int i, UiMenu *menu, UiObject *obj) {
    UiMenuItemI *it = menu->items_begin;
    int index = 0;
    while(it) {
        createMenuItem[it->type](parent, index, it, obj);
        it = it->next;
        index++;
    }
}

void add_menu_widget(Widget parent, int i, UiMenuItemI *item, UiObject *obj) {
    UiMenu *menu = (UiMenu*)item;
    Arg args[4];
    int n = 0;
    
    XmString s = NULL;
    if(menu->label) {
        s = XmStringCreateLocalized((char*)menu->label);
        XtSetArg(args[n], XmNlabelString, s); n++;
    }
    
    Widget submenu = XmVaCreateSimplePulldownMenu(parent, "menu_pulldown", i, NULL, NULL);
    XtSetArg(args[n], XmNsubMenuId, submenu); n++;
    Widget menuItem = XtCreateManagedWidget(
            "menuitem",
            xmCascadeButtonWidgetClass,
            parent,
            args,
            n);
    
    
    if(s) {
        XmStringFree(s);
    }
    
    ui_add_menu_items(submenu, i, menu, obj);
}

void add_menuitem_widget(Widget parent, int i, UiMenuItemI *item, UiObject *obj) {
    UiMenuItem *it = (UiMenuItem*)item;
    
    XmString s = NULL;
    Arg args[4];
    int n = 0;
    if(it->label) {
        s = XmStringCreateLocalized((char*)it->label);
        XtSetArg(args[n], XmNlabelString, s); n++;
    }
    
    Widget mitem = XtCreateManagedWidget(
            "menubutton",
            xmPushButtonWidgetClass,
            parent,
            args,
            n);
    if(s) {
        XmStringFree(s);
    }
    
    if(it->callback) {
        UiEventData *eventdata = malloc(sizeof(UiEventData));
        eventdata->callback = it->callback;
        eventdata->userdata = it->userdata;
        eventdata->obj = obj;
        eventdata->value = 0;
        XtAddCallback(
                mitem,
                XmNactivateCallback,
                (XtCallbackProc)ui_push_button_callback,
                eventdata);
       XtAddCallback(
                mitem,
                XmNdestroyCallback,
                (XtCallbackProc)ui_destroy_eventdata,
                eventdata);
    }
    
    ui_set_widget_groups(obj->ctx, mitem, it->groups);
}

void add_menuseparator_widget(Widget p, int i, UiMenuItemI *item, UiObject *obj) {
    Widget s = XmCreateSeparatorGadget (p, "menuseparator", NULL, 0);
    XtManageChild(s);
}

void add_checkitem_widget(Widget p, int i, UiMenuItemI *item, UiObject *obj) {
    UiMenuCheckItem *it = (UiMenuCheckItem*)item;
    
    Arg args[4];
    int n = 0;
    XmString s = NULL;
    if(it->label) {
        s = XmStringCreateLocalized(it->label);
        XtSetArg(args[n], XmNlabelString, s); n++;
    }
    
    //XtSetArg(args[n], XmNvisibleWhenOff, 0); n++;
    Widget checkbox = XtCreateManagedWidget(
            "menutogglebutton",
            xmToggleButtonWidgetClass,
            p,
            args,
            n);
    if(s) {
        XmStringFree(s);
    }
    
    ui_bind_togglebutton(obj, checkbox, it->varname, NULL, it->callback, it->userdata, 0);
    
    ui_set_widget_groups(obj->ctx, checkbox, it->groups);
}

void add_radioitem_widget(Widget p, int index, UiMenuItemI *item, UiObject *obj) {
    UiMenuRadioItem *it = (UiMenuRadioItem*)item;
    
    Arg args[4];
    int n = 0;
    XmString s = NULL;
    if(it->label) {
        s = XmStringCreateLocalized(it->label);
        XtSetArg(args[n], XmNlabelString, s); n++;
    }
    XtSetArg(args[n], XmNindicatorType, XmONE_OF_MANY_ROUND); n++;
    
    Widget button = XmCreateToggleButton(p, "menuradiobutton", args, n);
    XtManageChild(button);
    
    ui_bind_radiobutton(obj, button, NULL, it->varname, it->callback, it->userdata, 0);
}

void add_checkitemnv_widget(Widget p, int i, UiMenuItemI *item, UiObject *obj) {
    
}

void add_menuitem_list_widget(Widget p, int i, UiMenuItemI *item, UiObject *obj) {
    
}