diff options
Diffstat (limited to 'components/rtgui/common/rtgui_app.c')
| -rw-r--r-- | components/rtgui/common/rtgui_app.c | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/components/rtgui/common/rtgui_app.c b/components/rtgui/common/rtgui_app.c new file mode 100644 index 0000000000..f16a97cbf5 --- /dev/null +++ b/components/rtgui/common/rtgui_app.c @@ -0,0 +1,380 @@ +/* + * File : rtgui_application.c + * This file is part of RTGUI in RT-Thread RTOS + * COPYRIGHT (C) 2012, 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 + * 2012-01-13 Grissiom first version(just a prototype of application API) + * 2012-07-07 Bernard move the send/recv message to the rtgui_system.c + */ + +#include <rtgui/rtgui_system.h> +#include <rtgui/rtgui_app.h> +#include <rtgui/widgets/window.h> + +static void _rtgui_app_constructor(struct rtgui_app *app) +{ + /* set event handler */ + rtgui_object_set_event_handler(RTGUI_OBJECT(app), + rtgui_app_event_handler); + + app->name = RT_NULL; + /* set EXITED so we can destroy an application that just created */ + app->state_flag = RTGUI_APP_FLAG_EXITED; + app->ref_count = 0; + app->exit_code = 0; + app->tid = RT_NULL; + app->server = RT_NULL; + app->mq = RT_NULL; + app->modal_object = RT_NULL; + app->main_object = RT_NULL; + app->on_idle = RT_NULL; +} + +static void _rtgui_app_destructor(struct rtgui_app *app) +{ + RT_ASSERT(app != RT_NULL); + + rt_free(app->name); + app->name = RT_NULL; +} + +DEFINE_CLASS_TYPE(application, "application", + RTGUI_OBJECT_TYPE, + _rtgui_app_constructor, + _rtgui_app_destructor, + sizeof(struct rtgui_app)); + +struct rtgui_app* rtgui_app_create( + rt_thread_t tid, + const char *title) +{ + rt_thread_t srv_tid; + struct rtgui_app *app; + struct rtgui_event_application event; + + RT_ASSERT(tid != RT_NULL); + RT_ASSERT(title != RT_NULL); + + /* create application */ + app = RTGUI_APP(rtgui_object_create(RTGUI_APP_TYPE)); + if (app == RT_NULL) + return RT_NULL; + + /* one thread only can create one rtgui application */ + RT_ASSERT(tid->user_data == 0); + app->tid = tid; + /* set user thread */ + tid->user_data = (rt_uint32_t)app; + + app->mq = rt_mq_create("rtgui", sizeof(union rtgui_event_generic), 32, RT_IPC_FLAG_FIFO); + if (app->mq == RT_NULL) + { + rt_kprintf("create msgq failed.\n"); + goto __mq_err; + } + + /* set application title */ + app->name = (unsigned char*)rt_strdup((char*)title); + if (app->name == RT_NULL) + goto __err; + + /* send a message to notify rtgui server */ + srv_tid = rtgui_get_server(); + if (srv_tid == RT_NULL) + { + rt_kprintf("gui server is not running.\n"); + goto __err; + } + + /* create the rtgui server application */ + if (srv_tid == rt_thread_self()) + return app; + + RTGUI_EVENT_APP_CREATE_INIT(&event); + event.app = app; + + /* notify rtgui server to one application has been created */ + if (rtgui_send_sync(srv_tid, RTGUI_EVENT(&event), sizeof(event)) == RT_EOK) + { + return app; + } + +__err: +__mq_err: + rtgui_object_destroy(RTGUI_OBJECT(app)); + tid->user_data = 0; + return RT_NULL; +} + +#define _rtgui_application_check(app) \ + do { \ + RT_ASSERT(app != RT_NULL); \ + RT_ASSERT(app->tid != RT_NULL); \ + RT_ASSERT(app->tid->user_data != 0); \ + RT_ASSERT(app->mq != RT_NULL); \ + } while (0) + +void rtgui_app_destroy(struct rtgui_app *app) +{ + rt_thread_t srv_tid; + _rtgui_application_check(app); + + if (!(app->state_flag & RTGUI_APP_FLAG_EXITED)) + { + rt_kprintf("cannot destroy a running application: %s.\n", + app->name); + return; + } + + /* send a message to notify rtgui server */ + srv_tid = rtgui_get_server(); + if (srv_tid != rt_thread_self()) /* must not the server thread */ + { + struct rtgui_event_application event; + RTGUI_EVENT_APP_DESTROY_INIT(&event); + event.app = app; + + if (rtgui_send_sync(srv_tid, RTGUI_EVENT(&event), sizeof(event)) != RT_EOK) + { + rt_kprintf("destroy an application in server failed\n"); + return ; + } + } + + app->tid->user_data = 0; + rt_mq_delete(app->mq); + rtgui_object_destroy(RTGUI_OBJECT(app)); +} + +struct rtgui_app* rtgui_app_self(void) +{ + struct rtgui_app *app; + rt_thread_t self; + + /* get current thread */ + self = rt_thread_self(); + app = (struct rtgui_app*)(self->user_data); + + return app; +} + +void rtgui_app_set_onidle(rtgui_idle_func_t onidle) +{ + struct rtgui_app *app; + + app = rtgui_app_self(); + if (app != RT_NULL) + app->on_idle = onidle; +} + +rtgui_idle_func_t rtgui_app_get_onidle(void) +{ + struct rtgui_app *app; + + app = rtgui_app_self(); + if (app != RT_NULL) + return app->on_idle; + else + return RT_NULL; +} + +rt_inline rt_bool_t _rtgui_application_dest_handle( + struct rtgui_app *app, + struct rtgui_event *event) +{ + struct rtgui_event_win* wevent = (struct rtgui_event_win*)event; + + struct rtgui_object* dest_object = RTGUI_OBJECT(wevent->wid); + + if (dest_object != RT_NULL) + { + if (dest_object->event_handler != RT_NULL) + return dest_object->event_handler(RTGUI_OBJECT(dest_object), event); + else + return RT_FALSE; + } + else + { + rt_kprintf("RTGUI ERROR:server sent a event(%d) without wid\n", event->type); + return RT_FALSE; + } +} + +rt_bool_t rtgui_app_event_handler(struct rtgui_object* object, rtgui_event_t* event) +{ + struct rtgui_app* app; + + RT_ASSERT(object != RT_NULL); + RT_ASSERT(event != RT_NULL); + + app = RTGUI_APP(object); + + switch (event->type) + { + case RTGUI_EVENT_PAINT: + case RTGUI_EVENT_CLIP_INFO: + case RTGUI_EVENT_WIN_ACTIVATE: + case RTGUI_EVENT_WIN_DEACTIVATE: + case RTGUI_EVENT_WIN_CLOSE: + case RTGUI_EVENT_WIN_MOVE: + case RTGUI_EVENT_KBD: + _rtgui_application_dest_handle(app, event); + break; + + case RTGUI_EVENT_APP_ACTIVATE: + if (app->main_object != RT_NULL) + { + rtgui_win_activate(RTGUI_WIN(app->main_object)); + if (app->modal_object != RT_NULL) + rtgui_win_activate(RTGUI_WIN(app->modal_object)); + } + else if (app->modal_object != RT_NULL) + { + rtgui_win_activate(RTGUI_WIN(app->modal_object)); + } + break; + + case RTGUI_EVENT_MOUSE_BUTTON: + case RTGUI_EVENT_MOUSE_MOTION: + { + struct rtgui_event_win* wevent = (struct rtgui_event_win*)event; + struct rtgui_object* dest_object = RTGUI_OBJECT(wevent->wid); + + // FIXME: let application determine the dest_wiget but not in sever + // so we can combine this handler with above one + if (app->modal_object != RT_NULL && + dest_object != app->modal_object) + { +// rt_kprintf("discard event %s that is not sent to modal object\n", +// event_string[event->type]); + } + else + { + _rtgui_application_dest_handle(app, event); + } + } + break; + + case RTGUI_EVENT_TIMER: + { + struct rtgui_timer* timer; + struct rtgui_event_timer* etimer = (struct rtgui_event_timer*) event; + + timer = etimer->timer; + if (timer->timeout != RT_NULL) + { + /* call timeout function */ + timer->timeout(timer, timer->user_data); + } + } + break; + + case RTGUI_EVENT_COMMAND: + { + struct rtgui_event_command *ecmd = (struct rtgui_event_command*)event; + + if (ecmd->wid != RT_NULL) + return _rtgui_application_dest_handle(app, event); + } + + default: + return rtgui_object_event_handler(object, event); + } + + return RT_TRUE; +} + +rt_inline void _rtgui_application_event_loop(struct rtgui_app *app) +{ + rt_err_t result; + rt_uint16_t current_ref; + struct rtgui_event *event; + + _rtgui_application_check(app); + + /* point to event buffer */ + event = (struct rtgui_event*)app->event_buffer; + + current_ref = ++app->ref_count; + + while (current_ref <= app->ref_count) + { + RT_ASSERT(current_ref == app->ref_count); + + if (app->on_idle != RT_NULL) + { + result = rtgui_recv_nosuspend(event, sizeof(union rtgui_event_generic)); + if (result == RT_EOK) + RTGUI_OBJECT(app)->event_handler(RTGUI_OBJECT(app), event); + else if (result == -RT_ETIMEOUT) + app->on_idle(RTGUI_OBJECT(app), RT_NULL); + } + else + { + result = rtgui_recv(event, sizeof(union rtgui_event_generic)); + if (result == RT_EOK) + RTGUI_OBJECT(app)->event_handler(RTGUI_OBJECT(app), event); + } + } +} + +rt_base_t rtgui_app_run(struct rtgui_app *app) +{ + _rtgui_application_check(app); + + app->state_flag &= ~RTGUI_APP_FLAG_EXITED; + + _rtgui_application_event_loop(app); + + if (app->ref_count == 0) + app->state_flag |= RTGUI_APP_FLAG_EXITED; + + return app->exit_code; +} + +void rtgui_app_exit(struct rtgui_app* app, rt_uint16_t code) +{ + --app->ref_count; + app->exit_code = code; +} + +/** + * set this application as window manager + */ +rt_err_t rtgui_app_set_as_wm(void) +{ + rt_thread_t srv_tid; + struct rtgui_event_set_wm event; + struct rtgui_app* app; + + srv_tid = rtgui_get_server(); + app = rtgui_app_self(); + if (app != RT_NULL && srv_tid != RT_NULL) + { + /* notify rtgui server, this is a window manager */ + RTGUI_EVENT_SET_WM_INIT(&event); + event.app = app; + + rtgui_send_sync(srv_tid, RTGUI_EVENT(&event), sizeof(event)); + return RT_EOK; + } + + return RT_ERROR; +} + +void rtgui_app_set_main_win(struct rtgui_win* win) +{ + struct rtgui_app *app; + + app = rtgui_app_self(); + if (app != RT_NULL) + { + app->main_object = RTGUI_OBJECT(win); + } +} |