diff options
Diffstat (limited to 'IntelFrameworkPkg/Library/FrameworkUefiLib/Console.c')
-rw-r--r-- | IntelFrameworkPkg/Library/FrameworkUefiLib/Console.c | 183 |
1 files changed, 181 insertions, 2 deletions
diff --git a/IntelFrameworkPkg/Library/FrameworkUefiLib/Console.c b/IntelFrameworkPkg/Library/FrameworkUefiLib/Console.c index fa14135cc8..a8ecc27e64 100644 --- a/IntelFrameworkPkg/Library/FrameworkUefiLib/Console.c +++ b/IntelFrameworkPkg/Library/FrameworkUefiLib/Console.c @@ -1,7 +1,7 @@ /** @file
This module provide help function for displaying unicode string.
- Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -12,6 +12,9 @@ **/
+
+
+
#include "UefiLibInternal.h"
typedef struct {
@@ -196,6 +199,7 @@ GLOBAL_REMOVE_IF_UNREFERENCED CONST UNICODE_WIDTH_ENTRY mUnicodeWidthTable[] = { @retval 0 The width if UnicodeChar could not be determined.
@retval 1 UnicodeChar is a narrow glyph.
@retval 2 UnicodeChar is a wide glyph.
+
**/
UINTN
EFIAPI
@@ -211,7 +215,6 @@ GetGlyphWidth ( Item = NULL;
Low = 0;
High = (sizeof (mUnicodeWidthTable)) / (sizeof (UNICODE_WIDTH_ENTRY)) - 1;
-
while (Low <= High) {
Index = (Low + High) >> 1;
Item = &(mUnicodeWidthTable[Index]);
@@ -219,6 +222,7 @@ GetGlyphWidth ( if (UnicodeChar <= Item->WChar) {
break;
}
+
return 0;
}
@@ -255,6 +259,7 @@ GetGlyphWidth ( @param String A pointer to a Null-terminated Unicode string.
@return The display length of the Null-terminated Unicode string specified by String.
+
**/
UINTN
EFIAPI
@@ -282,3 +287,177 @@ UnicodeStringDisplayLength ( return Length;
}
+
+/**
+ Draws a dialog box to the console output device specified by
+ ConOut defined in the EFI_SYSTEM_TABLE and waits for a keystroke
+ from the console input device specified by ConIn defined in the
+ EFI_SYSTEM_TABLE.
+
+ If there are no strings in the variable argument list, then ASSERT().
+ If all the strings in the variable argument list are empty, then ASSERT().
+
+ @param[in] Attribute Specifies the foreground and background color of the popup.
+ @param[out] Key A pointer to the EFI_KEY value of the key that was
+ pressed. This is an optional parameter that may be NULL.
+ If it is NULL then no wait for a keypress will be performed.
+ @param[in] ... The variable argument list that contains pointers to Null-
+ terminated Unicode strings to display in the dialog box.
+ The variable argument list is terminated by a NULL.
+
+**/
+VOID
+EFIAPI
+CreatePopUp (
+ IN UINTN Attribute,
+ OUT EFI_INPUT_KEY *Key, OPTIONAL
+ ...
+ )
+{
+ VA_LIST Args;
+ EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *ConOut;
+ EFI_SIMPLE_TEXT_OUTPUT_MODE SavedConsoleMode;
+ UINTN Columns;
+ UINTN Rows;
+ UINTN Column;
+ UINTN Row;
+ UINTN NumberOfLines;
+ UINTN MaxLength;
+ CHAR16 *String;
+ UINTN Length;
+ CHAR16 *Line;
+ UINTN EventIndex;
+
+ //
+ // Determine the length of the longest line in the popup and the the total
+ // number of lines in the popup
+ //
+ VA_START (Args, Key);
+ MaxLength = 0;
+ NumberOfLines = 0;
+ while ((String = VA_ARG (Args, CHAR16 *)) != NULL) {
+ MaxLength = MAX (MaxLength, StrLen (String));
+ NumberOfLines++;
+ }
+ VA_END (Args);
+
+ //
+ // If the total number of lines in the popup is zero, then ASSERT()
+ //
+ ASSERT (NumberOfLines != 0);
+
+ //
+ // If the maximum length of all the strings is zero, then ASSERT()
+ //
+ ASSERT (MaxLength != 0);
+
+ //
+ // Cache a pointer to the Simple Text Output Protocol in the EFI System Table
+ //
+ ConOut = gST->ConOut;
+
+ //
+ // Save the current console cursor position and attributes
+ //
+ CopyMem (&SavedConsoleMode, ConOut->Mode, sizeof (SavedConsoleMode));
+
+ //
+ // Retrieve the number of columns and rows in the current console mode
+ //
+ ConOut->QueryMode (ConOut, SavedConsoleMode.Mode, &Columns, &Rows);
+
+ //
+ // Disable cursor and set the foreground and background colors specified by Attribute
+ //
+ ConOut->EnableCursor (ConOut, FALSE);
+ ConOut->SetAttribute (ConOut, Attribute);
+
+ //
+ // Limit NumberOfLines to height of the screen minus 3 rows for the box itself
+ //
+ NumberOfLines = MIN (NumberOfLines, Rows - 3);
+
+ //
+ // Limit MaxLength to width of the screen minus 2 columns for the box itself
+ //
+ MaxLength = MIN (MaxLength, Columns - 2);
+
+ //
+ // Compute the starting row and starting column for the popup
+ //
+ Row = (Rows - (NumberOfLines + 3)) / 2;
+ Column = (Columns - (MaxLength + 2)) / 2;
+
+ //
+ // Allocate a buffer for a single line of the popup with borders and a Null-terminator
+ //
+ Line = AllocateZeroPool ((MaxLength + 3) * sizeof (CHAR16));
+ ASSERT (Line != NULL);
+
+ //
+ // Draw top of popup box
+ //
+ SetMem16 (Line, (MaxLength + 2) * 2, BOXDRAW_HORIZONTAL);
+ Line[0] = BOXDRAW_DOWN_RIGHT;
+ Line[MaxLength + 1] = BOXDRAW_DOWN_LEFT;
+ Line[MaxLength + 2] = L'\0';
+ ConOut->SetCursorPosition (ConOut, Column, Row++);
+ ConOut->OutputString (ConOut, Line);
+
+ //
+ // Draw middle of the popup with strings
+ //
+ VA_START (Args, Key);
+ while ((String = VA_ARG (Args, CHAR16 *)) != NULL && NumberOfLines > 0) {
+ Length = StrLen (String);
+ SetMem16 (Line, (MaxLength + 2) * 2, L' ');
+ if (Length <= MaxLength) {
+ //
+ // Length <= MaxLength
+ //
+ CopyMem (Line + 1 + (MaxLength - Length) / 2, String , Length * sizeof (CHAR16));
+ } else {
+ //
+ // Length > MaxLength
+ //
+ CopyMem (Line + 1, String + (Length - MaxLength) / 2 , MaxLength * sizeof (CHAR16));
+ }
+ Line[0] = BOXDRAW_VERTICAL;
+ Line[MaxLength + 1] = BOXDRAW_VERTICAL;
+ Line[MaxLength + 2] = L'\0';
+ ConOut->SetCursorPosition (ConOut, Column, Row++);
+ ConOut->OutputString (ConOut, Line);
+ NumberOfLines--;
+ }
+ VA_END (Args);
+
+ //
+ // Draw bottom of popup box
+ //
+ SetMem16 (Line, (MaxLength + 2) * 2, BOXDRAW_HORIZONTAL);
+ Line[0] = BOXDRAW_UP_RIGHT;
+ Line[MaxLength + 1] = BOXDRAW_UP_LEFT;
+ Line[MaxLength + 2] = L'\0';
+ ConOut->SetCursorPosition (ConOut, Column, Row++);
+ ConOut->OutputString (ConOut, Line);
+
+ //
+ // Free the allocated line buffer
+ //
+ FreePool (Line);
+
+ //
+ // Restore the cursor visibility, position, and attributes
+ //
+ ConOut->EnableCursor (ConOut, SavedConsoleMode.CursorVisible);
+ ConOut->SetCursorPosition (ConOut, SavedConsoleMode.CursorColumn, SavedConsoleMode.CursorRow);
+ ConOut->SetAttribute (ConOut, SavedConsoleMode.Attribute);
+
+ //
+ // Wait for a keystroke
+ //
+ if (Key != NULL) {
+ gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &EventIndex);
+ gST->ConIn->ReadKeyStroke (gST->ConIn, Key);
+ }
+}
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