mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-05 13:33:33 +01:00
7c0aa811ec
Signed-off-by: Sergey Isakov <isakov-sl@bk.ru>
263 lines
5.8 KiB
C
263 lines
5.8 KiB
C
/** @file
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Implementation of various string and line routines
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Copyright (c) 2005 - 2011, 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 "HexEditor.h"
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extern BOOLEAN HEditorMouseAction;
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/**
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Free a line and it's internal buffer.
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@param[in] Src The line to be freed.
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**/
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VOID
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HLineFree (
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IN HEFI_EDITOR_LINE *Src
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)
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{
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if (Src == NULL) {
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return ;
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}
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SHELL_FREE_NON_NULL (Src);
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}
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/**
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Advance to the next Count lines.
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@param[in] Count The line number to advance.
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@retval NULL An error occured.
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@return A pointer to the line after advance.
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**/
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HEFI_EDITOR_LINE *
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HLineAdvance (
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IN UINTN Count
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)
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{
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UINTN Index;
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HEFI_EDITOR_LINE *Line;
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Line = HMainEditor.BufferImage->CurrentLine;
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if (Line == NULL) {
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return NULL;
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}
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for (Index = 0; Index < Count; Index++) {
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//
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// if already last line
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//
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if (Line->Link.ForwardLink == HMainEditor.BufferImage->ListHead) {
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return NULL;
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}
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Line = CR (Line->Link.ForwardLink, HEFI_EDITOR_LINE, Link, EFI_EDITOR_LINE_LIST);
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}
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return Line;
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}
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/**
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Retreat to the previous Count lines.
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@param[in] Count The line number to retreat.
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@retval NULL An error occured.
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@return A pointer to the line after retreat.
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**/
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HEFI_EDITOR_LINE *
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HLineRetreat (
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IN UINTN Count
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)
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{
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UINTN Index;
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HEFI_EDITOR_LINE *Line;
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Line = HMainEditor.BufferImage->CurrentLine;
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if (Line == NULL) {
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return NULL;
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}
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for (Index = 0; Index < Count; Index++) {
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//
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// already the first line
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//
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if (Line->Link.BackLink == HMainEditor.BufferImage->ListHead) {
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return NULL;
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}
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Line = CR (Line->Link.BackLink, HEFI_EDITOR_LINE, Link, EFI_EDITOR_LINE_LIST);
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}
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return Line;
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}
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/**
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Advance/Retreat lines.
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@param[in] Count The line number to advance/retreat.
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>0 : advance
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<0: retreat
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@retval NULL An error occured.
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@return A pointer to the line after move.
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**/
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HEFI_EDITOR_LINE *
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HMoveLine (
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IN INTN Count
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)
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{
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HEFI_EDITOR_LINE *Line;
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UINTN AbsCount;
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//
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// difference with MoveCurrentLine
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// just return Line
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// do not set currentline to Line
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//
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if (Count <= 0) {
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AbsCount = (UINTN)ABS(Count);
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Line = HLineRetreat (AbsCount);
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} else {
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Line = HLineAdvance ((UINTN)Count);
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}
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return Line;
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}
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/**
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Advance/Retreat lines and set CurrentLine in BufferImage to it.
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@param[in] Count The line number to advance/retreat.
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>0 : advance
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<0: retreat
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@retval NULL An error occured.
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@return A pointer to the line after move.
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**/
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HEFI_EDITOR_LINE *
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HMoveCurrentLine (
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IN INTN Count
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)
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{
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HEFI_EDITOR_LINE *Line;
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UINTN AbsCount;
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//
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// <0: retreat
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// >0: advance
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//
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if (Count <= 0) {
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AbsCount = (UINTN)ABS(Count);
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Line = HLineRetreat (AbsCount);
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} else {
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Line = HLineAdvance ((UINTN)Count);
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}
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if (Line == NULL) {
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return NULL;
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}
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HMainEditor.BufferImage->CurrentLine = Line;
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return Line;
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}
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/**
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Free all the lines in HBufferImage.
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Fields affected:
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Lines
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CurrentLine
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NumLines
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ListHead
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@param[in] ListHead The list head.
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@param[in] Lines The lines.
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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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HFreeLines (
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IN LIST_ENTRY *ListHead,
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IN HEFI_EDITOR_LINE *Lines
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)
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{
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LIST_ENTRY *Link;
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HEFI_EDITOR_LINE *Line;
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//
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// release all the lines
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//
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if (Lines != NULL) {
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Line = Lines;
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Link = &(Line->Link);
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do {
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Line = CR (Link, HEFI_EDITOR_LINE, Link, EFI_EDITOR_LINE_LIST);
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Link = Link->ForwardLink;
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HLineFree (Line);
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} while (Link != ListHead);
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}
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ListHead->ForwardLink = ListHead;
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ListHead->BackLink = ListHead;
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return EFI_SUCCESS;
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}
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/**
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Get the X information for the mouse.
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@param[in] GuidX The change.
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@return the new information.
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**/
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INT32
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HGetTextX (
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IN INT32 GuidX
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)
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{
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INT32 Gap;
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HMainEditor.MouseAccumulatorX += GuidX;
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Gap = (HMainEditor.MouseAccumulatorX * (INT32) HMainEditor.ScreenSize.Column) / (INT32) (50 * (INT32) HMainEditor.MouseInterface->Mode->ResolutionX);
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HMainEditor.MouseAccumulatorX = (HMainEditor.MouseAccumulatorX * (INT32) HMainEditor.ScreenSize.Column) % (INT32) (50 * (INT32) HMainEditor.MouseInterface->Mode->ResolutionX);
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HMainEditor.MouseAccumulatorX = HMainEditor.MouseAccumulatorX / (INT32) HMainEditor.ScreenSize.Column;
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return Gap;
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}
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/**
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Get the Y information for the mouse.
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@param[in] GuidY The change.
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@return the new information.
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**/
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INT32
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HGetTextY (
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IN INT32 GuidY
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)
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{
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INT32 Gap;
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HMainEditor.MouseAccumulatorY += GuidY;
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Gap = (HMainEditor.MouseAccumulatorY * (INT32) HMainEditor.ScreenSize.Row) / (INT32) (50 * (INT32) HMainEditor.MouseInterface->Mode->ResolutionY);
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HMainEditor.MouseAccumulatorY = (HMainEditor.MouseAccumulatorY * (INT32) HMainEditor.ScreenSize.Row) % (INT32) (50 * (INT32) HMainEditor.MouseInterface->Mode->ResolutionY);
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HMainEditor.MouseAccumulatorY = HMainEditor.MouseAccumulatorY / (INT32) HMainEditor.ScreenSize.Row;
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return Gap;
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}
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