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// 文件名:  EntryAndExitFunciton

// 描述  :  进入和退出屏幕模板程序

// 函数  :  EntryNewMenu

//          ExitMyAppMenu//          ExitNewMenu

// 以下是模板中使用的ID

// 菜单ID:  MENU_ID_MYAPP_NEW// 图标ID:  ICON_ID_MYAPP_NEW// 字串ID:  STR_ID_MYAPP_NEW// 屏幕ID： SCR_ID_MYAPP_NEW// 模板ID:  MMI_CATEGORYWTXYZ1_ID(ShowCategoryWTXYZ1Screen)

// 关于加载菜单: 我们需要知道的是,加载实际只是对菜单项的说明,在程序中没有实际意义,实际上菜单项的加载最后是

//               通过模板加载的,模板读取菜单项数据,然后在屏幕上显示出来

#define  MAX_NEW_MENU_ITEMS  20         // 声明新菜单中的项目数最大值: 50

// 函数名:  EntryNewMenu

// 功能  :  进入新的屏幕// 输入  :  无 // 输出  :  无 // 说明  :  1. attributes与GetDispAttributeOfItem//             A.  GetDispAttributeOfItem返回当前菜单的属性(attributes),原文说明如下://                 This is a display attribute flag like 1-list,2-Circular,3-Tab..etc.//             B.  attributes来源 CUSTOM_MENU结构中的nDispAttribute项目//             C.  GetDispAttributeOfItem有一个防止溢出错误的流程,具体看源程序//          2. SetParentHandler//             似乎跟Task那块有关……//          3. ExecuteCurrExitHandler Function://             This old ExecuteCurrExiHandler function already merged into EntryNewScreen.//             The detail migrated information please check the coding covention.//          4. ExecuteCurrHiliteHandler//             用来设置高亮句柄,在WGUI控件设置POPUP相关函数(句柄)时很有用//          5. GetSequenceStringIds, GetSequenceImageIds//             用在Res_Organizer.c中添加菜单时使用的资源(image_id,string_id)初始化子菜单,//             否则需要手动设置,手动可设置任意ID void  EntryNewMenu( void ){      /* Standard Local Variables */     U8 * guiBuffer ;     S32  attributes ;     S32  num_of_items ;     /* shold be modified */     S32  i ;     U16  list_of_items[MAX_NEW_MENU_ITEMS] ;     U16  list_of_icons[MAX_NEW_MENU_ITEMS] ;          /* Standard Code Body */     /* Before displaying the new screen over previous screen the following must be excuted */     // 1. Save the contents of previous screen     EntryNewScreen( SCR_ID_MYAPP_NEW, NULL, EntryNewMenu, NULL ) ;        //EntryNewScreen( SCR_ID_MYAPP_NEW, ExitNewScreen, NULL, NULL ) ;     // 2. Get the buffer to store the contents of screen to be displayed     guiBuffer = GetCurrGuiBuffer(SCR_ID_MYAPP_NEW) ;            // Buffer holding history data     // 3. Get Display attribute for the following scree                 attributes = GetDispAttributeOfItem(MENU_ID_MYAPP_NEW) ;    // Stores diaplay attribute     // 4. Recive number of submenu items to be displayed( if this entry function is to display a list menu     num_of_items = GetNumOfChild(MENU_ID_MYAPP_NEW);            // Stores no of children in the subment     // 5. Set the parent of new screen to be diplayed, so that the framework knows where this menu item appears         SetParentHandler(MENU_ID_MYAPP_NEW);     // 6. Recevice strings and images(icons) id, in sequence, of given menu item to be displayed.     //    The sequence of strings or images is defined as per the registration of string items in the populate function     //    as described in Section 6.     //    In my mind, its optional subject.     GetSequenceStringIds(MAIN_MENU_ORGANIZER_MENUID, item_list) ;     GetSequenceImageIds(MAIN_MENU_ORGANIZER_MENUID, item_icon) ;     // 7. Set the subment item to be displayed highlighted, on the next screen     // 8. Set the function to be excuted on pressing right or left soft key     // Register highlight handler to be called in menu screen      //    Its in depend on the category code, so in my mind, its also optional subject     RegisterHighlightHandler(ExecuteCurrHiliteHandler) ;     /* should be modified */     // 9. Set the function to be called on exiting the next screen     for( i=0; i<num_of_items; i++ )     {           list_of_items[i] = STR_ID_MYAPP_NEW+i ;          list_of_icons[i] = ICON_ID_MYAPP_NEW+i ;     }     ShowCategoryWT001Screen(          STR_GLOBAL_OK,   IMG_GLOBAL_OK,          STR_GLOBAL_BACK, IMG_GLOBAL_BACK,          num_of_items,          list_of_items,          list_of_icons,          0,          guiBuffer     )     // 10.Rigister function with right softkey      // 一般情况下注册按键的操作如:     // SetRightSoftkeyFunction(GoBackHistory, KEY_EVENT_UP);     // SetKeyHandler(GoBackHistory, KEY_LEFT_ARROW, KEY_EVENT_DOWN);     SetRightSoftkeyFunction(GoBackHistory,KEY_EVENT_UP);                // 注册右软键响应函数     SetLeftSoftkeyFunction(mmi_myapp_category_popup,KEY_EVENT_UP);      // 注册左软键响应函数}

// 函数名:  ExitMyAppMenu

// 功能  :  退出屏幕的基本函数// 输入  :  无 // 输出  :  无static void  ExitMyAppMenu( void * entry_screen_pfunc, U16 screen_id ){      history  currHistory ;     S16  nHistory=0 ;          currHistory.scrnID = screen_id ;     currHistory.entryFuncPtr = entry_screen_pfunc ;     pfnUnicodeStrcpy((S8*)currHistory.inputBuffer,(S8*)&nHistory);     GetCategoryHistory( currHistory.guiBuffer );     AddHistory( currHistory );}

// 函数名:  ExitNewMenu

// 功能  :  进入新的屏幕// 输入  :  无 // 输出  :  无 // 调用  :  ExitMyAppMenuvoid  ExitNewMenu( void ){      /* Standard Code Body */     ExitMyAppMenu( EntryNewMenu, SCR_ID_MYAPP_NEW );     /* should be modified */     gui_fixed_icontext_menuitem_stop_scroll( );} 

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