Mon, 23 Sep 2024 23:17:39 +0200
simplify gtk button code
/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright 2023 Mike Becker, 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. */ /** * \file collection.h * \brief Common definitions for various collection implementations. * \author Mike Becker * \author Olaf Wintermann * \copyright 2-Clause BSD License */ #ifndef UCX_COLLECTION_H #define UCX_COLLECTION_H #include "allocator.h" #include "iterator.h" #ifdef __cplusplus extern "C" { #endif /** * Special constant used for creating collections that are storing pointers. */ #define CX_STORE_POINTERS 0 #ifndef CX_COMPARE_FUNC_DEFINED #define CX_COMPARE_FUNC_DEFINED /** * A comparator function comparing two collection elements. */ typedef int(*cx_compare_func)( void const *left, void const *right ); #endif // CX_COMPARE_FUNC_DEFINED /** * Use this macro to declare common members for a collection structure. */ #define CX_COLLECTION_MEMBERS \ /** \ * The allocator to use. \ */ \ CxAllocator const *allocator; \ /** \ * The comparator function for the elements. \ */ \ cx_compare_func cmpfunc; \ /** \ * The size of each element. \ */ \ size_t item_size; \ /** \ * The number of currently stored elements. \ */ \ size_t size; \ /** \ * An optional simple destructor for the collection's elements. \ * \ * @attention Read the documentation of the particular collection implementation \ * whether this destructor shall only destroy the contents or also free the memory. \ */ \ cx_destructor_func simple_destructor; \ /** \ * An optional advanced destructor for the collection's elements. \ * \ * @attention Read the documentation of the particular collection implementation \ * whether this destructor shall only destroy the contents or also free the memory. \ */ \ cx_destructor_func2 advanced_destructor; \ /** \ * The pointer to additional data that is passed to the advanced destructor. \ */ \ void *destructor_data; \ /** \ * Indicates if this instance of a collection is supposed to store pointers \ * instead of copies of the actual objects. \ */ \ bool store_pointer; /** * Invokes the simple destructor function for a specific element. * * Usually only used by collection implementations. There should be no need * to invoke this macro manually. * * @param c the collection * @param e the element */ #define cx_invoke_simple_destructor(c, e) \ (c)->simple_destructor((c)->store_pointer ? (*((void **) (e))) : (e)) /** * Invokes the advanced destructor function for a specific element. * * Usually only used by collection implementations. There should be no need * to invoke this macro manually. * * @param c the collection * @param e the element */ #define cx_invoke_advanced_destructor(c, e) \ (c)->advanced_destructor((c)->destructor_data, \ (c)->store_pointer ? (*((void **) (e))) : (e)) /** * Invokes all available destructor functions for a specific element. * * Usually only used by collection implementations. There should be no need * to invoke this macro manually. * * @param c the collection * @param e the element */ #define cx_invoke_destructor(c, e) \ if ((c)->simple_destructor) cx_invoke_simple_destructor(c,e); \ if ((c)->advanced_destructor) cx_invoke_advanced_destructor(c,e) #ifdef __cplusplus } // extern "C" #endif #endif // UCX_COLLECTION_H