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/** @file
Implements statusbar interface functions.
Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved. <BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "EditStatusBar.h"
#include "UefiShellDebug1CommandsLib.h"
CHAR16 *StatusString;
BOOLEAN StatusBarNeedRefresh;
BOOLEAN StatusStringChanged;
/**
Initialization function for Status Bar.
@retval EFI_SUCCESS The operation was successful.
@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
@sa StatusBarSetStatusString
**/
EFI_STATUS
StatusBarInit (
VOID
)
{
//
// initialize the statusbar
//
StatusString = NULL;
StatusBarNeedRefresh = TRUE;
StatusStringChanged = FALSE;
//
// status string set to ""
//
return (StatusBarSetStatusString (L""));
}
/**
Cleanup function for the status bar.
**/
VOID
StatusBarCleanup (
VOID
)
{
//
// free the status string and backvar's status string
//
SHELL_FREE_NON_NULL (StatusString);
}
typedef struct {
UINT32 Foreground : 4;
UINT32 Background : 3;
} STATUS_BAR_COLOR_ATTRIBUTES;
typedef union {
STATUS_BAR_COLOR_ATTRIBUTES Colors;
UINTN Data;
} STATUS_BAR_COLOR_UNION;
/**
Cause the status bar to refresh it's printing on the screen.
@param[in] EditorFirst TRUE to indicate the first launch of the editor.
FALSE otherwise.
@param[in] LastRow LastPrintable row.
@param[in] LastCol Last printable column.
@param[in] FileRow Row in the file.
@param[in] FileCol Column in the file.
@param[in] InsertMode TRUE to indicate InsertMode. FALSE otherwise.
@retval EFI_SUCCESS The operation was successful.
**/
EFI_STATUS
StatusBarRefresh (
IN BOOLEAN EditorFirst,
IN UINTN LastRow,
IN UINTN LastCol,
IN UINTN FileRow,
IN UINTN FileCol,
IN BOOLEAN InsertMode
)
{
STATUS_BAR_COLOR_UNION Orig;
STATUS_BAR_COLOR_UNION New;
if (!StatusStringChanged && StatusBarNeedRefresh) {
StatusBarSetStatusString (L"\0");
}
//
// when it's called first time after editor launch, so refresh is mandatory
//
if (!StatusBarNeedRefresh && !StatusStringChanged) {
return EFI_SUCCESS;
}
//
// back up the screen attributes
//
Orig.Data = gST->ConOut->Mode->Attribute;
New.Data = 0;
New.Colors.Foreground = Orig.Colors.Background & 0xF;
New.Colors.Background = Orig.Colors.Foreground & 0x7;
gST->ConOut->EnableCursor (gST->ConOut, FALSE);
gST->ConOut->SetAttribute (gST->ConOut, New.Data & 0x7F);
//
// clear status bar
//
EditorClearLine (LastRow, LastCol, LastRow);
//
// print row, column fields
//
if (FileRow != (UINTN)(-1) && FileCol != (UINTN)(-1)) {
ShellPrintEx (
0,
(INT32)(LastRow) - 1,
L" %d,%d %s",
FileRow,
FileCol,
StatusString
);
} else {
ShellPrintEx (
0,
(INT32)(LastRow) - 1,
L" %s",
StatusString
);
}
//
// print insert mode field
//
if (InsertMode) {
ShellPrintEx ((INT32)(LastCol) - 21, (INT32)(LastRow) - 1, L"|%s| Help: Ctrl-E", L"INS");
} else {
ShellPrintEx ((INT32)(LastCol) - 21, (INT32)(LastRow) - 1, L"|%s| Help: Ctrl-E", L"OVR");
}
//
// restore the old screen attributes
//
gST->ConOut->SetAttribute (gST->ConOut, Orig.Data);
//
// restore position in edit area
//
gST->ConOut->EnableCursor (gST->ConOut, TRUE);
StatusBarNeedRefresh = FALSE;
StatusStringChanged = FALSE;
return EFI_SUCCESS;
}
/**
Set the status string text part.
@param[in] Str The string to use.
@retval EFI_SUCCESS The operation was successful.
@retval EFI_OUT_OF_RESOURCES A memory allocation failed.
**/
EFI_STATUS
StatusBarSetStatusString (
IN CHAR16 *Str
)
{
StatusStringChanged = TRUE;
//
// free the old status string
//
SHELL_FREE_NON_NULL (StatusString);
StatusString = CatSPrint (NULL, L"%s", Str);
if (StatusString == NULL) {
return EFI_OUT_OF_RESOURCES;
}
return EFI_SUCCESS;
}
/**
Function to retrieve the current status string.
@return The string that is used.
**/
CONST CHAR16*
StatusBarGetString (
VOID
)
{
return (StatusString);
}
/**
Function to set the need refresh boolean to TRUE.
**/
VOID
StatusBarSetRefresh(
VOID
)
{
StatusBarNeedRefresh = TRUE;
}
/**
Function to get the need refresh boolean to TRUE.
@retval TRUE The status bar needs to be refreshed.
**/
BOOLEAN
StatusBarGetRefresh(
VOID
)
{
return (StatusBarNeedRefresh);
}
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