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Diffstat (limited to 'EDK/Foundation/Library/Dxe/Print/BoxDraw.c')
| -rw-r--r-- | EDK/Foundation/Library/Dxe/Print/BoxDraw.c | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/Dxe/Print/BoxDraw.c b/EDK/Foundation/Library/Dxe/Print/BoxDraw.c new file mode 100644 index 0000000..fdcd073 --- /dev/null +++ b/EDK/Foundation/Library/Dxe/Print/BoxDraw.c @@ -0,0 +1,212 @@ +/*++ + +Copyright (c) 2004, Intel Corporation +All rights reserved. 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 +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +Module Name: + + BoxDraw.c + +Abstract: + Lib functions to support Box Draw Unicode code pages. + + + +Revision History + +--*/ + +#include "Tiano.h" +#include "EfiDriverLib.h" + + + +typedef struct { + CHAR16 Unicode; + CHAR8 PcAnsi; + CHAR8 Ascii; +} UNICODE_TO_CHAR; + + +// +// This list is used to define the valid extend chars. +// It also provides a mapping from Unicode to PCANSI or +// ASCII. The ASCII mapping we just made up. +// +// + +static UNICODE_TO_CHAR UnicodeToPcAnsiOrAscii[] = { + BOXDRAW_HORIZONTAL, 0xc4, L'-', + BOXDRAW_VERTICAL, 0xb3, L'|', + BOXDRAW_DOWN_RIGHT, 0xda, L'/', + BOXDRAW_DOWN_LEFT, 0xbf, L'\\', + BOXDRAW_UP_RIGHT, 0xc0, L'\\', + BOXDRAW_UP_LEFT, 0xd9, L'/', + BOXDRAW_VERTICAL_RIGHT, 0xc3, L'|', + BOXDRAW_VERTICAL_LEFT, 0xb4, L'|', + BOXDRAW_DOWN_HORIZONTAL, 0xc2, L'+', + BOXDRAW_UP_HORIZONTAL, 0xc1, L'+', + BOXDRAW_VERTICAL_HORIZONTAL, 0xc5, L'+', + BOXDRAW_DOUBLE_HORIZONTAL, 0xcd, L'-', + BOXDRAW_DOUBLE_VERTICAL, 0xba, L'|', + BOXDRAW_DOWN_RIGHT_DOUBLE, 0xd5, L'/', + BOXDRAW_DOWN_DOUBLE_RIGHT, 0xd6, L'/', + BOXDRAW_DOUBLE_DOWN_RIGHT, 0xc9, L'/', + BOXDRAW_DOWN_LEFT_DOUBLE, 0xb8, L'\\', + BOXDRAW_DOWN_DOUBLE_LEFT, 0xb7, L'\\', + BOXDRAW_DOUBLE_DOWN_LEFT, 0xbb, L'\\', + BOXDRAW_UP_RIGHT_DOUBLE, 0xd4, L'\\', + BOXDRAW_UP_DOUBLE_RIGHT, 0xd3, L'\\', + BOXDRAW_DOUBLE_UP_RIGHT, 0xc8, L'\\', + BOXDRAW_UP_LEFT_DOUBLE, 0xbe, L'/', + BOXDRAW_UP_DOUBLE_LEFT, 0xbd, L'/', + BOXDRAW_DOUBLE_UP_LEFT, 0xbc, L'/', + BOXDRAW_VERTICAL_RIGHT_DOUBLE, 0xc6, L'|', + BOXDRAW_VERTICAL_DOUBLE_RIGHT, 0xc7, L'|', + BOXDRAW_DOUBLE_VERTICAL_RIGHT, 0xcc, L'|', + BOXDRAW_VERTICAL_LEFT_DOUBLE, 0xb5, L'|', + BOXDRAW_VERTICAL_DOUBLE_LEFT, 0xb6, L'|', + BOXDRAW_DOUBLE_VERTICAL_LEFT, 0xb9, L'|', + BOXDRAW_DOWN_HORIZONTAL_DOUBLE, 0xd1, L'+', + BOXDRAW_DOWN_DOUBLE_HORIZONTAL, 0xd2, L'+', + BOXDRAW_DOUBLE_DOWN_HORIZONTAL, 0xcb, L'+', + BOXDRAW_UP_HORIZONTAL_DOUBLE, 0xcf, L'+', + BOXDRAW_UP_DOUBLE_HORIZONTAL, 0xd0, L'+', + BOXDRAW_DOUBLE_UP_HORIZONTAL, 0xca, L'+', + BOXDRAW_VERTICAL_HORIZONTAL_DOUBLE, 0xd8, L'+', + BOXDRAW_VERTICAL_DOUBLE_HORIZONTAL, 0xd7, L'+', + BOXDRAW_DOUBLE_VERTICAL_HORIZONTAL, 0xce, L'+', + + BLOCKELEMENT_FULL_BLOCK, 0xdb, L'*', + BLOCKELEMENT_LIGHT_SHADE, 0xb0, L'+', + + GEOMETRICSHAPE_UP_TRIANGLE, 0x1e, L'^', + GEOMETRICSHAPE_RIGHT_TRIANGLE, 0x10, L'>', + GEOMETRICSHAPE_DOWN_TRIANGLE, 0x1f, L'v', + GEOMETRICSHAPE_LEFT_TRIANGLE, 0x11, L'<', + + ARROW_LEFT, 0x3c, L'<', + + ARROW_UP, 0x18, L'^', + + ARROW_RIGHT, 0x3e, L'>', + + ARROW_DOWN, 0x19, L'v', + + 0x0000, 0x00 +}; + + +BOOLEAN +LibIsValidTextGraphics ( + IN CHAR16 Graphic, + OUT CHAR8 *PcAnsi, OPTIONAL + OUT CHAR8 *Ascii OPTIONAL + ) +/*++ + +Routine Description: + + Detects if a Unicode char is for Box Drawing text graphics. + +Arguments: + + Grphic - Unicode char to test. + + PcAnsi - Optional pointer to return PCANSI equivalent of Graphic. + + Asci - Optional pointer to return Ascii equivalent of Graphic. + +Returns: + + TRUE if Gpaphic is a supported Unicode Box Drawing character. + +--*/ +{ + UNICODE_TO_CHAR *Table; + + if ((((Graphic & 0xff00) != 0x2500) && ((Graphic & 0xff00) != 0x2100))) { + + // + // Unicode drawing code charts are all in the 0x25xx range, + // arrows are 0x21xx + // + return FALSE; + } + + for (Table = UnicodeToPcAnsiOrAscii; Table->Unicode != 0x0000; Table++) { + if (Graphic == Table->Unicode) { + if (PcAnsi != NULL) { + *PcAnsi = Table->PcAnsi; + } + if (Ascii != NULL) { + *Ascii = Table->Ascii; + } + return TRUE; + } + } + return FALSE; +} + + +BOOLEAN +IsValidAscii ( + IN CHAR16 Ascii + ) +/*++ + +Routine Description: + + Is it valid ascii char? + +Arguments: + + Ascii - The char to check + +Returns: + + TRUE - Is a ascii char + FALSE - Not a ascii char + +--*/ +{ + if ((Ascii >= 0x20) && (Ascii <= 0x7f)) { + return TRUE; + } + return FALSE; +} + + +BOOLEAN +IsValidEfiCntlChar ( + IN CHAR16 CharC + ) +/*++ + +Routine Description: + + Is it valid EFI control char? + +Arguments: + + Ascii - The char to check + +Returns: + + TRUE - Is a valid EFI control char + FALSE - Not a valid EFI control char + +--*/ +{ + if (CharC == CHAR_NULL || CharC == CHAR_BACKSPACE || CharC == CHAR_LINEFEED || CharC == CHAR_CARRIAGE_RETURN) { + return TRUE; + } + return FALSE; +} + |