ui/motif/menu.c

changeset 0
1f419bd32da1
child 2
eeb50c534497
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/motif/menu.c	Sat Dec 07 12:14:59 2013 +0100
@@ -0,0 +1,306 @@
+/*
+ * 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 "menu.h"
+#include "button.h"
+#include "toolkit.h"
+#include "../common/context.h"
+#include "../ui/window.h"
+
+UcxList *menus;
+UcxList *current;
+
+void ui_menu(char *label) {
+    // free current menu hierarchy
+    ucx_list_free(current);
+    
+    // create menu
+    UiMenu *menu = malloc(sizeof(UiMenu));
+    menu->item.add_to = (ui_menu_add_f)add_menu_widget;
+    
+    menu->label  = label;
+    menu->items  = NULL;
+    menu->parent = NULL;    
+    
+    current = ucx_list_prepend(NULL, menu);
+    menus = ucx_list_append(menus, menu);
+    
+}
+
+void ui_submenu(char *label) {
+    UiMenu *menu = malloc(sizeof(UiMenu));
+    menu->item.add_to = (ui_menu_add_f)add_menu_widget;
+    
+    menu->label  = label;
+    menu->items  = NULL;
+    menu->parent = NULL;
+    
+    // add submenu to current menu
+    UiMenu *cm = current->data;
+    cm->items = ucx_list_append(cm->items, menu);
+    
+    // set the submenu to current menu
+    current = ucx_list_prepend(current, menu);
+}
+
+void ui_submenu_end() {
+    if(ucx_list_size(current) < 2) {
+        return;
+    }
+    current = ucx_list_remove(current, current);
+}
+
+void ui_menuitem(char *label, ui_callback f, void *userdata) {
+    if(!current) {
+        return;
+    }
+    
+    UiMenuItem *item = malloc(sizeof(UiMenuItem));
+    item->item.add_to = (ui_menu_add_f)add_menuitem_widget;
+    
+    item->label = label;
+    item->userdata = userdata;
+    item->callback = f;
+    
+    UiMenu *cm = current->data;
+    cm->items = ucx_list_append(cm->items, item);
+}
+
+void ui_menuseparator() {
+    if(!current) {
+        return;
+    }
+    
+    UiMenuItemI *item = malloc(sizeof(UiMenuItemI));
+    item->add_to = (ui_menu_add_f)add_menuseparator_widget;
+    
+    UiMenu *cm = current->data;
+    cm->items = ucx_list_append(cm->items, item);
+}
+
+
+void ui_checkitem(char *label, ui_callback f, void *userdata) {
+    if(!current) {
+        return;
+    }
+    
+    UiCheckItem *item = malloc(sizeof(UiCheckItem));
+    item->item.add_to = (ui_menu_add_f)add_checkitem_widget;
+    item->label = label;
+    item->callback = f;
+    item->userdata = userdata;
+    
+    UiMenu *cm = current->data;
+    cm->items = ucx_list_append(cm->items, item);
+}
+
+void ui_checkitem_nv(char *label, char *vname) {
+    if(!current) {
+        return;
+    }
+    
+    UiCheckItemNV *item = malloc(sizeof(UiCheckItemNV));
+    item->item.add_to = (ui_menu_add_f)add_checkitemnv_widget;
+    item->varname = vname;
+    item->label = label;
+    
+    UiMenu *cm = current->data;
+    cm->items = ucx_list_append(cm->items, item);
+}
+
+
+// private menu functions
+void ui_create_menubar(UiObject *obj) {
+    if(!menus) {
+        return;
+    }
+    
+    Widget menubar = XmCreateMenuBar(obj->widget, "main_list", NULL, 0);
+    XtManageChild(menubar);
+    
+    UcxList *ls = menus;
+    int menu_index = 0;
+    while(ls) {
+        UiMenu *menu = ls->data;
+        menu_index += menu->item.add_to(menubar, menu_index, &menu->item, obj);
+        
+        ls = ls->next;
+    }
+}
+
+int add_menu_widget(Widget parent, int i, UiMenuItemI *item, UiObject *obj) {
+    UiMenu *menu = (UiMenu*)item;
+    
+    Widget menuItem = XtVaCreateManagedWidget(
+            menu->label,
+            xmCascadeButtonWidgetClass,
+            parent,
+            NULL);
+    Widget m = XmVaCreateSimplePulldownMenu(parent, menu->label, i, NULL, NULL);
+    
+    UcxList *ls = menu->items;
+    int menu_index = 0;
+    while(ls) {
+        UiMenuItemI *mi = ls->data;
+        menu_index += mi->add_to(m, menu_index, mi, obj);
+        ls = ls->next;
+    }
+    
+    return 1;
+}
+
+int add_menuitem_widget(
+        Widget parent,
+        int i,
+        UiMenuItemI *item,
+        UiObject *obj)
+{
+    UiMenuItem *mi = (UiMenuItem*)item;
+    
+    Arg args[1];
+    XmString label = XmStringCreateLocalized(mi->label);
+    XtSetArg(args[0], XmNlabelString, label);
+    
+    Widget mitem = XtCreateManagedWidget(
+            "menubutton",
+            xmPushButtonWidgetClass,
+            parent,
+            args,
+            1);
+    XmStringFree(label);
+    
+    if(mi->callback != NULL) {
+        UiEventData *event = ucx_mempool_malloc(
+                obj->ctx->mempool,
+                sizeof(UiEventData));
+        event->obj = obj;
+        event->user_data = mi->userdata;
+        event->callback = mi->callback;
+        XtAddCallback(mitem, XmNactivateCallback, ui_menu_event_wrapper, event);
+    }
+    
+    return 1;
+}
+
+int add_menuseparator_widget(
+        Widget parent,
+        int i,
+        UiMenuItemI *item,
+        UiObject *obj)
+{
+    Widget s = XmCreateSeparatorGadget (parent, "menu_separator", NULL, 0);
+    XtManageChild(s);
+    return 1;
+}
+
+int add_checkitem_widget(
+        Widget parent,
+        int i,
+        UiMenuItemI *item,
+        UiObject *obj)
+{
+    UiCheckItem *ci = (UiCheckItem*)item;
+    
+    Arg args[3];
+    XmString label = XmStringCreateLocalized(ci->label);
+    XtSetArg(args[0], XmNlabelString, label);
+    XtSetArg(args[1], XmNvisibleWhenOff, 1);
+    Widget checkbox = XtCreateManagedWidget(
+            "menutogglebutton",
+            xmToggleButtonWidgetClass,
+            parent,
+            args,
+            2);
+    XmStringFree(label);
+    
+    if(ci->callback) {
+        UiEventData *event = ucx_mempool_malloc(
+                obj->ctx->mempool,
+                sizeof(UiEventData));
+        event->obj = obj;
+        event->user_data = ci->userdata;
+        event->callback = ci->callback;
+        XtAddCallback(
+            checkbox,
+            XmNvalueChangedCallback,
+            (XtCallbackProc)ui_toggle_button_callback,
+            event);
+    }
+    
+    return 1;
+}
+
+int add_checkitemnv_widget(
+        Widget parent,
+        int i,
+        UiMenuItemI *item,
+        UiObject *obj)
+{
+    UiCheckItemNV *ci = (UiCheckItemNV*)item;
+    
+    Arg args[3];
+    XmString label = XmStringCreateLocalized(ci->label);
+    XtSetArg(args[0], XmNlabelString, label);
+    XtSetArg(args[1], XmNvisibleWhenOff, 1);
+    Widget checkbox = XtCreateManagedWidget(
+            "menutogglebutton",
+            xmToggleButtonWidgetClass,
+            parent,
+            args,
+            2);
+    XmStringFree(label);
+    
+    UiVar *var = uic_getvar(obj, ci->varname);
+    if(!var) {
+        ui_window_addint(obj, ci->varname);
+        var = uic_getvar(obj, ci->varname);
+    }
+    if(var->type == 1) {
+        UiInteger *value = var->value;
+        value->obj = checkbox;
+        value->get = ui_toggle_button_get;
+        value->set = ui_toggle_button_set;
+        value = 0;
+    } else {
+        // TODO: error message
+    }
+}
+
+
+void ui_menu_event_wrapper(Widget widget, XtPointer udata, XtPointer cdata) {
+    UiEventData *event = udata;
+    UiEvent e;
+    e.obj = event->obj;
+    e.window = event->obj->window;
+    // TODO: e.document
+    e.intval = 0;
+    event->callback(&e, event->user_data);    
+}

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