diff options
Diffstat (limited to 'components/rtgui_win/common/rtgui_object.c')
| -rw-r--r-- | components/rtgui_win/common/rtgui_object.c | 242 |
1 files changed, 0 insertions, 242 deletions
diff --git a/components/rtgui_win/common/rtgui_object.c b/components/rtgui_win/common/rtgui_object.c deleted file mode 100644 index 4bbc221c17..0000000000 --- a/components/rtgui_win/common/rtgui_object.c +++ /dev/null @@ -1,242 +0,0 @@ -/* - * File : rtgui_object.c - * This file is part of RTGUI in RT-Thread RTOS - * COPYRIGHT (C) 2006 - 2009, RT-Thread Development Team - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rt-thread.org/license/LICENSE - * - * Change Logs: - * Date Author Notes - * 2009-10-04 Bernard first version - */ - -#include <rtgui/rtgui_object.h> -#include <rtgui/rtgui_system.h> - -static void _rtgui_object_constructor(rtgui_object_t *object) -{ - if (!object) return; - - object->is_static = RT_FALSE; -} - -/* Destroys the object */ -static void _rtgui_object_destructor(rtgui_object_t *object) -{ - /* nothing */ -} - -rtgui_type_t *rtgui_type_create(const char *type_name, rtgui_type_t *parent_type, - int type_size, rtgui_constructor_t constructor, - rtgui_destructor_t destructor) -{ - rtgui_type_t *new_type; - - if (!type_name) - return RT_NULL; - - new_type = rtgui_malloc(sizeof(rtgui_type_t)); - new_type->name = rt_strdup(type_name); - new_type->size = type_size; - new_type->constructor = constructor; - new_type->destructor = destructor; - - if (!parent_type) - { - new_type->hierarchy_depth = 0; - new_type->hierarchy = RT_NULL; - } - else - { - /* Build the type hierarchy */ - new_type->hierarchy_depth = parent_type->hierarchy_depth + 1; - new_type->hierarchy = rtgui_malloc(sizeof(rtgui_type_t *) * new_type->hierarchy_depth); - - new_type->hierarchy[0] = parent_type; - rt_memcpy(new_type->hierarchy + 1, parent_type->hierarchy, - parent_type->hierarchy_depth * sizeof(rtgui_type_t *)); - } - - return new_type; -} - -void rtgui_type_destroy(rtgui_type_t *type) -{ - if (!type) return; - - if (type->hierarchy) rtgui_free(type->hierarchy); - - rtgui_free(type->name); - rtgui_free(type); -} - -void rtgui_type_object_construct(rtgui_type_t *type, rtgui_object_t *object) -{ - int i; - - if (!type || !object) return; - - /* Call the constructors */ - for (i = type->hierarchy_depth - 1; i >= 0; i--) - { - if (type->hierarchy[i]->constructor) - type->hierarchy[i]->constructor(object); - } - if (type->constructor) type->constructor(object); -} - -void rtgui_type_destructors_call(rtgui_type_t *type, rtgui_object_t *object) -{ - int i; - - if (!type || !object) return; - - if (type->destructor) type->destructor(object); - for (i = 0; i < type->hierarchy_depth; i++) - { - if (type->hierarchy[i]->destructor) - type->hierarchy[i]->destructor(object); - } -} - -rt_bool_t rtgui_type_inherits_from(rtgui_type_t *type, rtgui_type_t *parent) -{ - int i; - - if (!type || !parent) return RT_FALSE; - - if (type == parent) return RT_TRUE; - - for (i = 0; i < type->hierarchy_depth; i++) - { - if (type->hierarchy[i] == parent) return RT_TRUE; - } - - return RT_FALSE; -} - -rtgui_type_t *rtgui_type_parent_type_get(rtgui_type_t *type) -{ - if (!type || !type->hierarchy) return RT_NULL; - - return type->hierarchy[0]; -} - -const char *rtgui_type_name_get(rtgui_type_t *type) -{ - if (!type) return RT_NULL; - - return type->name; -} - -struct rtgui_object_information -{ - rt_uint32_t objs_number; - rt_uint32_t allocated_size; - rt_uint32_t max_allocated; -}; -struct rtgui_object_information obj_info = {0, 0, 0}; - -/** - * @brief Creates a new object: it calls the corresponding constructors (from the constructor of the base class to the - * constructor of the more derived class) and then sets the values of the given properties - * @param object_type the type of object to create - * @return Returns the new Etk_Object of type @a object_type - */ -rtgui_object_t *rtgui_object_create(rtgui_type_t *object_type) -{ - rtgui_object_t *new_object; - - if (!object_type) - return RT_NULL; - - new_object = rtgui_malloc(object_type->size); - if (new_object == RT_NULL) return RT_NULL; - - obj_info.objs_number ++; - obj_info.allocated_size += object_type->size; - if (obj_info.allocated_size > obj_info.max_allocated) - obj_info.max_allocated = obj_info.allocated_size; - - new_object->type = object_type; - new_object->is_static = RT_FALSE; - - rtgui_type_object_construct(object_type, new_object); - - return new_object; -} - -/** - * @brief Destroys the object: it first sets the weak-pointers to RT_NULL, emits the "destroyed" signal, and then - * queues the object in the list of objects to free. Thus, the destructors will only be called at the beginning of the - * next main loop iteration (from the destructor of the more derived class to the destructor of the ultimate base class). - * @param object the object to destroy - * @warning You should not assume that this function will call directly the destructors of the object! - */ -void rtgui_object_destroy(rtgui_object_t *object) -{ - if (!object || object->is_static == RT_TRUE) return; - - obj_info.objs_number --; - obj_info.allocated_size -= object->type->size; - - /* call destructor */ - RT_ASSERT(object->type != RT_NULL); - rtgui_type_destructors_call(object->type, object); - - /* release object */ - rtgui_free(object); -} - -/** - * @internal - * @brief Gets the type of a rtgui_object - * @return Returns the type of a rtgui_object - */ -rtgui_type_t *rtgui_object_type_get(void) -{ - static rtgui_type_t *object_type = RT_NULL; - - if (!object_type) - { - object_type = rtgui_type_create("object", RT_NULL, - sizeof(rtgui_object_t), RTGUI_CONSTRUCTOR(_rtgui_object_constructor), - RTGUI_DESTRUCTOR(_rtgui_object_destructor)); - } - - return object_type; -} - -/** - * @brief Checks if @a object can be cast to @a type. - * If @a object doesn't inherit from @a type, a warning is displayed in the console but the object is returned anyway. - * @param object the object to cast - * @param type the type to which we cast the object - * @return Returns the object - * @note You usually do not need to call this function, use specific macros instead (ETK_IS_WIDGET() for example) - */ -rtgui_object_t *rtgui_object_check_cast(rtgui_object_t *object, rtgui_type_t *type) -{ - if (!object) return RT_NULL; - - if (!rtgui_type_inherits_from(object->type, type)) - { - rt_kprintf("Invalid cast from \"%s\" to \"%s\"\n", rtgui_type_name_get(object->type), rtgui_type_name_get(type)); - } - - return object; -} - -/** - * @brief Gets the type of the object - * @param object an object - * @return Returns the type of @a object (RT_NULL on failure) - */ -rtgui_type_t *rtgui_object_object_type_get(rtgui_object_t *object) -{ - if (!object) return RT_NULL; - - return object->type; -} |