ui/common/menu.c

changeset 431
bb7da585debc
parent 421
3b969399f962
child 440
7c4b9cba09ca
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/common/menu.c	Sat Jan 04 16:38:48 2025 +0100
@@ -0,0 +1,331 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2023 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 "menu.h"
+
+#include <stdarg.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <cx/linked_list.h>
+#include <cx/array_list.h>
+
+
+static UiMenuBuilder *current_builder;
+static UiMenuBuilder global_builder;
+
+static int menu_item_counter = 0;
+
+void uic_menu_init(void) {
+    global_builder.current = cxLinkedListCreate(cxDefaultAllocator, NULL, CX_STORE_POINTERS);
+    current_builder = &global_builder;
+}
+
+static void add_menu(UiMenu *menu) {
+    cx_linked_list_add(
+            (void**)&current_builder->menus_begin,
+            (void**)&current_builder->menus_end,
+            offsetof(UiMenu, item.prev),
+            offsetof(UiMenu, item.next),
+            menu);
+}
+
+static void add_item(UiMenuItemI *item) {
+    UiMenu *menu = cxListAt(current_builder->current, 0);
+    cx_linked_list_add(
+            (void**)&menu->items_begin,
+            (void**)&menu->items_end,
+            offsetof(UiMenu, item.prev),
+            offsetof(UiMenu, item.next),
+            item);
+}
+
+static void mitem_set_id(UiMenuItemI *item) {
+    snprintf(item->id, 8, "%x", menu_item_counter++);
+}
+
+static char* nl_strdup(const char* s) {
+    return s ? strdup(s) : NULL;
+}
+
+int* uic_copy_groups(const int* groups, size_t *ngroups) {
+    *ngroups = 0;
+    if (!groups) {
+        return NULL;
+    }
+
+    size_t n;
+    for (n = 0; groups[n] > -1; n++) { }
+
+    if (ngroups > 0) {
+        int* newarray = calloc(n+1, sizeof(int));
+        memcpy(newarray, groups, n * sizeof(int));
+        newarray[n] = -1;
+        *ngroups = n;
+        return newarray;
+    }
+    return NULL;
+}
+
+void ui_menu_create(const char *label) {   
+    // create menu
+    UiMenu *menu = malloc(sizeof(UiMenu));
+    mitem_set_id(&menu->item);
+    menu->item.prev = NULL;
+    menu->item.next = NULL;
+    menu->item.type = UI_MENU;
+    
+    menu->label        = label;
+    menu->items_begin  = NULL;
+    menu->items_end    = NULL;
+    menu->parent       = NULL;    
+
+    menu->end = 0;
+
+    if (cxListSize(current_builder->current) == 0) {
+        add_menu(menu);
+    }
+    else {
+        add_item((UiMenuItemI*)menu);
+    }
+    uic_add_menu_to_stack(menu);
+}
+
+UIEXPORT void ui_menu_end(void) {
+    cxListRemove(current_builder->current, 0);
+    if(cxListSize(current_builder->current) == 0) {
+        current_builder = &global_builder;
+    }
+}
+
+
+
+void ui_menuitem_create(UiMenuItemArgs args) {
+    UiMenuItem* item = malloc(sizeof(UiMenuItem));
+    mitem_set_id(&item->item);
+    item->item.prev = NULL;
+    item->item.next = NULL;
+    item->item.type = UI_MENU_ITEM;
+
+    item->label = nl_strdup(args.label);
+    item->stockid = nl_strdup(args.stockid);
+    item->icon = nl_strdup(args.icon);
+    item->userdata = args.onclickdata;
+    item->callback = args.onclick;
+    item->groups = uic_copy_groups(args.groups, &item->ngroups);
+
+    add_item((UiMenuItemI*)item);
+}
+
+void ui_menuseparator() {
+    UiMenuItemI  *item = malloc(sizeof(UiMenuItemI));
+    item->id[0] = 0;
+    item->prev = NULL;
+    item->next = NULL;
+    item->type = UI_MENU_SEPARATOR;
+    
+    add_item((UiMenuItemI*)item);
+}
+
+void ui_menu_toggleitem_create(UiMenuToggleItemArgs args) {
+    UiMenuCheckItem *item = malloc(sizeof(UiMenuCheckItem));
+    mitem_set_id(&item->item);
+    item->item.prev = NULL;
+    item->item.next = NULL;
+    item->item.type = UI_MENU_CHECK_ITEM;
+
+    item->label = nl_strdup(args.label);
+    item->stockid = nl_strdup(args.stockid);
+    item->icon = nl_strdup(args.icon);
+    item->varname = nl_strdup(args.varname);
+    item->userdata = args.onchangedata;
+    item->callback = args.onchange;
+    item->groups = uic_copy_groups(args.groups, &item->ngroups);
+    
+    add_item((UiMenuItemI*)item);
+}
+
+void ui_menu_radioitem_create(UiMenuToggleItemArgs args) {
+    UiMenuCheckItem* item = malloc(sizeof(UiMenuCheckItem));
+    mitem_set_id(&item->item);
+    item->item.prev = NULL;
+    item->item.next = NULL;
+    item->item.type = UI_MENU_RADIO_ITEM;
+
+    item->label = nl_strdup(args.label);
+    item->stockid = nl_strdup(args.stockid);
+    item->icon = nl_strdup(args.icon);
+    item->varname = nl_strdup(args.varname);
+    item->userdata = args.onchangedata;
+    item->callback = args.onchange;
+    item->groups = uic_copy_groups(args.groups, &item->ngroups);
+
+    add_item((UiMenuItemI*)item);
+}
+
+void ui_menu_itemlist_create(UiMenuItemListArgs args) {
+    UiMenuItemList*item = malloc(sizeof(UiMenuItemList));
+    mitem_set_id(&item->item);
+    item->item.prev = NULL;
+    item->item.next = NULL;
+    item->item.type = UI_MENU_ITEM_LIST;
+    item->getvalue = args.getvalue;
+    item->callback = args.onselect;
+    item->userdata = args.onselectdata;
+    item->varname = nl_strdup(args.varname);
+    item->addseparator = args.addseparator;
+    
+    add_item((UiMenuItemI*)item);
+}
+
+void ui_menu_checkitemlist_create(UiMenuItemListArgs args) {
+    UiMenuItemList* item = malloc(sizeof(UiMenuItemList));
+    mitem_set_id(&item->item);
+    item->item.prev = NULL;
+    item->item.next = NULL;
+    item->item.type = UI_MENU_CHECKITEM_LIST;
+    item->callback = args.onselect;
+    item->userdata = args.onselectdata;
+    item->varname = nl_strdup(args.varname);
+
+    add_item((UiMenuItemI*)item);
+}
+
+void ui_menu_radioitemlist_create(UiMenuItemListArgs args) {
+    UiMenuItemList* item = malloc(sizeof(UiMenuItemList));
+    mitem_set_id(&item->item);
+    item->item.prev = NULL;
+    item->item.next = NULL;
+    item->item.type = UI_MENU_RADIOITEM_LIST;
+    item->callback = args.onselect;
+    item->userdata = args.onselectdata;
+    item->varname = nl_strdup(args.varname);
+
+    add_item((UiMenuItemI*)item);
+}
+
+
+void uic_add_menu_to_stack(UiMenu* menu) {
+    cxListInsert(current_builder->current, 0, menu);
+}
+
+UiMenu* uic_get_menu_list(void) {
+    return current_builder->menus_begin;
+}
+
+UIEXPORT void ui_menu_close(void) {
+    UiMenu* menu = cxListAt(current_builder->current, 0);
+    menu->end = 1;
+}
+
+UIEXPORT int ui_menu_is_open(void) {
+    UiMenu* menu = cxListAt(current_builder->current, 0);
+    if (menu->end) {
+        ui_menu_end();
+        return 0;
+    }
+    return 1;
+}
+
+
+void ui_contextmenu_builder(UiMenuBuilder **out_builder) {
+    UiMenuBuilder *builder = malloc(sizeof(UiMenuBuilder));
+    builder->menus_begin = NULL;
+    builder->menus_end = NULL;
+    builder->current = cxLinkedListCreate(cxDefaultAllocator, NULL, CX_STORE_POINTERS);
+    current_builder = builder;
+    *out_builder = builder;
+    
+    ui_menu_create(NULL);
+}
+
+
+
+static void free_menuitem(UiMenuItemI *item) {
+    switch(item->type) {
+        default: break;
+        case UI_MENU: {
+            UiMenu *menu = (UiMenu*)item;
+            UiMenuItemI *m = menu->items_begin;
+            while(m) {
+                UiMenuItemI *next = m->next;
+                free_menuitem(m);
+                m = next;
+            }
+            break;
+        }
+        case UI_MENU_ITEM: {
+            UiMenuItem *i = (UiMenuItem*)item;
+            free(i->groups);
+            free(i->label);
+            free(i->stockid);
+            free(i->icon);
+            break;
+        }
+        case UI_MENU_CHECK_ITEM: {
+            UiMenuCheckItem *i = (UiMenuCheckItem*)item;
+            free(i->groups);
+            free(i->label);
+            free(i->stockid);
+            free(i->icon);
+            free(i->varname);
+            break;
+        }
+        case UI_MENU_RADIO_ITEM: {
+            UiMenuRadioItem *i = (UiMenuRadioItem*)item;
+            free(i->groups);
+            free(i->label);
+            free(i->stockid);
+            free(i->icon);
+            //free(i->varname);
+            break;
+        }
+        case UI_MENU_ITEM_LIST: {
+            break;
+        }
+        case UI_MENU_CHECKITEM_LIST: {
+            break;
+        }
+        case UI_MENU_RADIOITEM_LIST: {
+            break;
+        }
+    }
+    
+    free(item);
+}
+
+void ui_menubuilder_free(UiMenuBuilder *builder) {
+    UiMenuItemI *m = &builder->menus_begin->item;
+    while(m) {
+        UiMenuItemI *next = m->next;
+        free_menuitem(m);
+        m = next;
+    }
+    cxListDestroy(builder->current);
+    free(builder);
+}

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