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Replace traditional `#ifndef`/`#define`/`#endif` include guards with
`#pragma` once.
`#pragma once` is a widely supported preprocessor directive that
prevents header files from being included multiple times. It is
supported by all toolchains used to build edk2: GCC, Clang/LLVM, and
MSVC.
Compared to macro-based include guards, `#pragma once`:
- Eliminates the risk of macro name collisions or copy/paste errors
where two headers inadvertently use the same guard macro.
- Eliminate inconsistency in the way include guard macros are named
(e.g., some files use `__FILE_H__`, others use `FILE_H_`, etc.).
- Reduces boilerplate (three lines replaced by one).
- Avoids polluting the macro namespace with guard symbols.
- Can improve build times as the preprocessor can skip re-opening the
file entirely, rather than re-reading it to find the matching
`#endif` ("multiple-include optimization").
- Note that some compilers may already optimize traditional include
guards, by recognzining the idiomatic pattern.
This change is made acknowledging that overall portability of the
code will technically be reduced, as `#pragma once` is not part of the
C/C++ standards.
However, this is considered acceptable given:
1. edk2 already defines a subset of supported compilers in
BaseTools/Conf/tools_def.template, all of which have supported
`#pragma once` for over two decades.
2. There have been concerns raised to the project about inconsistent
include guard naming and potential macro collisions.
Approximate compiler support dates:
- MSVC: Supported since Visual C++ 4.2 (1996)
- GCC: Supported since 3.4 (2004)
(http://gnu.ist.utl.pt/software/gcc/gcc-3.4/changes.html)
- Clang (LLVM based): Since initial release in 2007
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
349 lines
7.9 KiB
C
349 lines
7.9 KiB
C
/** @file
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This library class defines a set of interfaces to customize Display module
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Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#pragma once
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#include <Protocol/DisplayProtocol.h>
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/**
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+------------------------------------------------------------------------------+
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| Setup Page |
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+------------------------------------------------------------------------------+
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Statement
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Statement
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Statement
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+------------------------------------------------------------------------------+
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| F9=Reset to Defaults F10=Save |
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| ^"=Move Highlight <Spacebar> Toggles Checkbox Esc=Exit |
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+------------------------------------------------------------------------------+
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StatusBar
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**/
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/**
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This function defines Page Frame and Backgroud.
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Based on the above layout, it will be responsible for HeaderHeight, FooterHeight,
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StatusBarHeight and Backgroud. And, it will reserve Screen for Statement.
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@param[in] FormData Form Data to be shown in Page.
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@param[out] ScreenForStatement Screen to be used for Statement. (Prompt, Value and Help)
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@return Status
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**/
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EFI_STATUS
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EFIAPI
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DisplayPageFrame (
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IN FORM_DISPLAY_ENGINE_FORM *FormData,
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OUT EFI_SCREEN_DESCRIPTOR *ScreenForStatement
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);
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/**
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Clear Screen to the initial state.
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**/
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VOID
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EFIAPI
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ClearDisplayPage (
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VOID
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);
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/**
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This function updates customized key panel's help information.
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The library will prepare those Strings for the basic key, ESC, Enter, Up/Down/Left/Right, +/-.
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and arrange them in Footer panel.
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@param[in] FormData Form Data to be shown in Page. FormData has the highlighted statement.
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@param[in] Statement The statement current selected.
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@param[in] Selected Whether or not a tag be selected. TRUE means Enter has hit this question.
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**/
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VOID
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EFIAPI
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RefreshKeyHelp (
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IN FORM_DISPLAY_ENGINE_FORM *FormData,
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IN FORM_DISPLAY_ENGINE_STATEMENT *Statement,
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IN BOOLEAN Selected
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);
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/**
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Update status bar.
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This function updates the status bar on the bottom of menu screen. It just shows StatusBar.
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Original logic in this function should be splitted out.
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@param[in] MessageType The type of message to be shown. InputError or Configuration Changed.
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@param[in] State Show or Clear Message.
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**/
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VOID
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EFIAPI
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UpdateStatusBar (
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IN UINTN MessageType,
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IN BOOLEAN State
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);
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/**
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Create popup window.
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This function draws OEM/Vendor specific pop up windows.
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@param[out] Key User Input Key
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@param ... String to be shown in Popup. The variable argument list is terminated by a NULL.
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**/
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VOID
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EFIAPI
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CreateDialog (
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OUT EFI_INPUT_KEY *Key OPTIONAL,
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...
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);
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/**
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Confirm how to handle the changed data.
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@return Action BROWSER_ACTION_SUBMIT, BROWSER_ACTION_DISCARD or other values.
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**/
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UINTN
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EFIAPI
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ConfirmDataChange (
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VOID
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);
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/**
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OEM specifies whether Setup exits Page by ESC key.
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This function customized the behavior that whether Setup exits Page so that
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system able to boot when configuration is not changed.
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@retval TRUE Exits FrontPage
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@retval FALSE Don't exit FrontPage.
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**/
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BOOLEAN
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EFIAPI
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FormExitPolicy (
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VOID
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);
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/**
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Set Timeout value for a ceratain Form to get user response.
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This function allows to set timeout value on a ceratain form if necessary.
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If timeout is not zero, the form will exit if user has no response in timeout.
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@param[in] FormData Form Data to be shown in Page
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@return 0 No timeout for this form.
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@return > 0 Timeout value in 100 ns units.
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**/
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UINT64
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EFIAPI
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FormExitTimeout (
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IN FORM_DISPLAY_ENGINE_FORM *FormData
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);
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//
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// Print Functions
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//
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/**
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Prints a unicode string to the default console, at
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the supplied cursor position, using L"%s" format.
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@param Column The cursor position to print the string at. When it is -1, use current Position.
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@param Row The cursor position to print the string at. When it is -1, use current Position.
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@param String String pointer.
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@return Length of string printed to the console
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**/
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UINTN
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EFIAPI
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PrintStringAt (
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IN UINTN Column,
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IN UINTN Row,
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IN CHAR16 *String
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);
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/**
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Prints a unicode string with the specified width to the default console, at
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the supplied cursor position, using L"%s" format.
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@param Column The cursor position to print the string at. When it is -1, use current Position.
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@param Row The cursor position to print the string at. When it is -1, use current Position.
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@param String String pointer.
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@param Width Width for String to be printed. If the print length of String < Width,
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Space char (L' ') will be used to append String.
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@return Length of string printed to the console
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**/
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UINTN
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EFIAPI
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PrintStringAtWithWidth (
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IN UINTN Column,
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IN UINTN Row,
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IN CHAR16 *String,
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IN UINTN Width
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);
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/**
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Prints a character to the default console, at
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the supplied cursor position, using L"%c" format.
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@param Column The cursor position to print the string at. When it is -1, use current Position.
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@param Row The cursor position to print the string at. When it is -1, use current Position.
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@param Character Character to print.
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@return Length of string printed to the console.
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**/
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UINTN
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EFIAPI
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PrintCharAt (
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IN UINTN Column,
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IN UINTN Row,
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CHAR16 Character
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);
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/**
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Clear retangle with specified text attribute.
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@param LeftColumn Left column of retangle.
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@param RightColumn Right column of retangle.
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@param TopRow Start row of retangle.
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@param BottomRow End row of retangle.
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@param TextAttribute The character foreground and background.
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**/
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VOID
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EFIAPI
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ClearLines (
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IN UINTN LeftColumn,
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IN UINTN RightColumn,
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IN UINTN TopRow,
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IN UINTN BottomRow,
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IN UINTN TextAttribute
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);
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//
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// Color Setting Functions
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//
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/**
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Get OEM/Vendor specific popup attribute colors.
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@retval Byte code color setting for popup color.
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**/
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UINT8
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EFIAPI
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GetPopupColor (
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VOID
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);
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/**
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Get OEM/Vendor specific popup attribute colors.
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@retval Byte code color setting for popup inverse color.
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**/
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UINT8
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EFIAPI
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GetPopupInverseColor (
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VOID
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);
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/**
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Get OEM/Vendor specific PickList color attribute.
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@retval Byte code color setting for pick list color.
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**/
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UINT8
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EFIAPI
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GetPickListColor (
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VOID
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);
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/**
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Get OEM/Vendor specific arrow color attribute.
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@retval Byte code color setting for arrow color.
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**/
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UINT8
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EFIAPI
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GetArrowColor (
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VOID
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);
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/**
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Get OEM/Vendor specific info text color attribute.
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@retval Byte code color setting for info text color.
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**/
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UINT8
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EFIAPI
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GetInfoTextColor (
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VOID
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);
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/**
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Get OEM/Vendor specific help text color attribute.
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@retval Byte code color setting for help text color.
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**/
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UINT8
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EFIAPI
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GetHelpTextColor (
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VOID
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);
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/**
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Get OEM/Vendor specific grayed out text color attribute.
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@retval Byte code color setting for grayed out text color.
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**/
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UINT8
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EFIAPI
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GetGrayedTextColor (
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VOID
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);
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/**
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Get OEM/Vendor specific highlighted text color attribute.
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@retval Byte code color setting for highlight text color.
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**/
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UINT8
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EFIAPI
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GetHighlightTextColor (
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VOID
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);
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/**
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Get OEM/Vendor specific field text color attribute.
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@retval Byte code color setting for field text color.
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**/
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UINT8
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EFIAPI
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GetFieldTextColor (
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VOID
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);
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/**
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Get OEM/Vendor specific subtitle text color attribute.
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@retval Byte code color setting for subtitle text color.
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**/
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UINT8
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EFIAPI
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GetSubTitleTextColor (
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VOID
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);
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