mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
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231 lines
5.1 KiB
C
231 lines
5.1 KiB
C
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/** @file
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Implements statusbar interface functions.
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Copyright (c) 2005 - 2014, Intel Corporation. All rights reserved. <BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "EditStatusBar.h"
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#include "UefiShellDebug1CommandsLib.h"
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CHAR16 *StatusString;
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BOOLEAN StatusBarNeedRefresh;
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BOOLEAN StatusStringChanged;
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/**
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Initialization function for Status Bar.
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@retval EFI_SUCCESS The operation was successful.
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@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
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@sa StatusBarSetStatusString
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**/
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EFI_STATUS
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StatusBarInit (
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VOID
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)
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{
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//
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// initialize the statusbar
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//
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StatusString = NULL;
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StatusBarNeedRefresh = TRUE;
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StatusStringChanged = FALSE;
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//
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// status string set to ""
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//
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return (StatusBarSetStatusString (L""));
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}
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/**
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Cleanup function for the status bar.
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**/
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VOID
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StatusBarCleanup (
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VOID
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)
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{
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//
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// free the status string and backvar's status string
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//
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SHELL_FREE_NON_NULL (StatusString);
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}
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typedef struct {
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UINT32 Foreground : 4;
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UINT32 Background : 3;
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} STATUS_BAR_COLOR_ATTRIBUTES;
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typedef union {
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STATUS_BAR_COLOR_ATTRIBUTES Colors;
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UINTN Data;
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} STATUS_BAR_COLOR_UNION;
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/**
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Cause the status bar to refresh it's printing on the screen.
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@param[in] EditorFirst TRUE to indicate the first launch of the editor.
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FALSE otherwise.
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@param[in] LastRow LastPrintable row.
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@param[in] LastCol Last printable column.
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@param[in] FileRow Row in the file.
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@param[in] FileCol Column in the file.
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@param[in] InsertMode TRUE to indicate InsertMode. FALSE otherwise.
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@retval EFI_SUCCESS The operation was successful.
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**/
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EFI_STATUS
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StatusBarRefresh (
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IN BOOLEAN EditorFirst,
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IN UINTN LastRow,
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IN UINTN LastCol,
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IN UINTN FileRow,
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IN UINTN FileCol,
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IN BOOLEAN InsertMode
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)
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{
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STATUS_BAR_COLOR_UNION Orig;
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STATUS_BAR_COLOR_UNION New;
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if (!StatusStringChanged && StatusBarNeedRefresh) {
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StatusBarSetStatusString (L"\0");
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}
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//
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// when it's called first time after editor launch, so refresh is mandatory
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//
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if (!StatusBarNeedRefresh && !StatusStringChanged) {
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return EFI_SUCCESS;
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}
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//
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// back up the screen attributes
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//
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Orig.Data = gST->ConOut->Mode->Attribute;
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New.Data = 0;
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New.Colors.Foreground = Orig.Colors.Background & 0xF;
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New.Colors.Background = Orig.Colors.Foreground & 0x7;
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gST->ConOut->EnableCursor (gST->ConOut, FALSE);
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gST->ConOut->SetAttribute (gST->ConOut, New.Data & 0x7F);
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//
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// clear status bar
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//
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EditorClearLine (LastRow, LastCol, LastRow);
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//
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// print row, column fields
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//
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if (FileRow != (UINTN)(-1) && FileCol != (UINTN)(-1)) {
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ShellPrintEx (
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0,
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(INT32)(LastRow) - 1,
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L" %d,%d %s",
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FileRow,
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FileCol,
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StatusString
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);
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} else {
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ShellPrintEx (
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0,
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(INT32)(LastRow) - 1,
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L" %s",
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StatusString
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);
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}
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//
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// print insert mode field
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//
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if (InsertMode) {
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ShellPrintEx ((INT32)(LastCol) - 21, (INT32)(LastRow) - 1, L"|%s| Help: Ctrl-E", L"INS");
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} else {
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ShellPrintEx ((INT32)(LastCol) - 21, (INT32)(LastRow) - 1, L"|%s| Help: Ctrl-E", L"OVR");
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}
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//
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// restore the old screen attributes
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//
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gST->ConOut->SetAttribute (gST->ConOut, Orig.Data);
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//
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// restore position in edit area
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//
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gST->ConOut->EnableCursor (gST->ConOut, TRUE);
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StatusBarNeedRefresh = FALSE;
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StatusStringChanged = FALSE;
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return EFI_SUCCESS;
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}
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/**
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Set the status string text part.
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@param[in] Str The string to use.
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@retval EFI_SUCCESS The operation was successful.
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@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
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**/
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EFI_STATUS
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StatusBarSetStatusString (
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IN CHAR16 *Str
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)
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{
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StatusStringChanged = TRUE;
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//
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// free the old status string
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//
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SHELL_FREE_NON_NULL (StatusString);
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StatusString = CatSPrint (NULL, L"%s", Str);
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if (StatusString == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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return EFI_SUCCESS;
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}
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/**
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Function to retrieve the current status string.
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@return The string that is used.
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**/
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CONST CHAR16*
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StatusBarGetString (
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VOID
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)
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{
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return (StatusString);
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}
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/**
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Function to set the need refresh boolean to TRUE.
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**/
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VOID
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StatusBarSetRefresh(
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VOID
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)
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{
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StatusBarNeedRefresh = TRUE;
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}
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/**
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Function to get the need refresh boolean to TRUE.
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@retval TRUE The status bar needs to be refreshed.
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**/
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BOOLEAN
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StatusBarGetRefresh(
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VOID
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)
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{
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return (StatusBarNeedRefresh);
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}
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