+++ /dev/null
-/*
- * Move history for WinBoard
- *
- * Author: Alessandro Scotti (Dec 2005)
- * back-end part split off by HGM
- *
- * Copyright 2005 Alessandro Scotti
- *
- * Enhancements Copyright 2009, 2010, 2011, 2012, 2013, 2014, 2015,
- * 2016 Free Software Foundation, Inc.
- *
- * ------------------------------------------------------------------------
- *
- * GNU XBoard is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or (at
- * your option) any later version.
- *
- * GNU XBoard is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see http://www.gnu.org/licenses/.
- *
- * ------------------------------------------------------------------------
- ** See the file ChangeLog for a revision history. */
-
-#include "config.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "common.h"
-#include "frontend.h"
-#include "backend.h"
-
-/* templates for low-level front-end tasks (requiring platform-dependent implementation) */
-void ClearHistoryMemo P((void)); // essential
-int AppendToHistoryMemo P(( char * text, int bold, int colorNr )); // essential (coloring / styling optional)
-void HighlightMove P(( int from, int to, Boolean highlight )); // optional (can be dummy)
-void ScrollToCurrent P((int caretPos)); // optional (can be dummy)
-
-/* templates for front-end entry point to allow inquiring about front-end state */
-Boolean MoveHistoryDialogExists P((void));
-Boolean MoveHistoryIsUp P((void));
-
-/* Module globals */
-typedef char MoveHistoryString[ MOVE_LEN*2 ];
-
-static int lastFirst = 0;
-static int lastLast = 0;
-static int lastCurrent = -1;
-static int lastGames;
-
-static char lastLastMove[ MOVE_LEN ];
-
-static MoveHistoryString * currMovelist;
-static ChessProgramStats_Move * currPvInfo;
-static int currFirst = 0;
-static int currLast = 0;
-static int currCurrent = -1;
-
-typedef struct {
- int memoOffset;
- int memoLength;
-} HistoryMove;
-
-static HistoryMove histMoves[ MAX_MOVES ];
-
-/* Note: in the following code a "Memo" is a Rich Edit control (it's Delphi lingo) */
-
-// back-end after replacing Windows data-types by equivalents
-static Boolean
-OnlyCurrentPositionChanged ()
-{
- Boolean result = FALSE;
-
- if( lastFirst >= 0 &&
- lastLast >= lastFirst &&
- lastCurrent >= lastFirst &&
- currFirst == lastFirst &&
- currLast == lastLast &&
- currCurrent >= 0 &&
- lastGames == storedGames )
- {
- result = TRUE;
-
- /* Special case: last move changed */
- if( currCurrent == currLast-1 ) {
- if( strcmp( currMovelist[currCurrent], lastLastMove ) != 0 ) {
- result = FALSE;
- }
- }
- }
-
- return result;
-}
-
-// back-end, after replacing Windows data types
-static Boolean
-OneMoveAppended ()
-{
- Boolean result = FALSE;
-
- if( lastCurrent >= 0 && lastCurrent >= lastFirst && lastLast >= lastFirst &&
- currCurrent >= 0 && currCurrent >= currFirst && currLast >= currFirst &&
- lastFirst == currFirst &&
- lastLast == (currLast-1) &&
- lastCurrent == (currCurrent-1) &&
- currCurrent == (currLast-1) &&
- lastGames == storedGames )
- {
- result = TRUE;
- }
-
- return result;
-}
-
-// back-end, now that color and font-style are passed as numbers
-static void
-AppendMoveToMemo (int index)
-{
- char buf[64];
-
- if( index < 0 || index >= MAX_MOVES ) {
- return;
- }
-
- buf[0] = '\0';
-
- /* Move number */
- if( (index % 2) == 0 ) {
- sprintf( buf, "%d.%s ", (index / 2)+1, index & 1 ? ".." : "" );
- AppendToHistoryMemo( buf, 1, 0 ); // [HGM] 1 means bold, 0 default color
- }
-
- /* Move text */
- safeStrCpy( buf, SavePart( currMovelist[index]) , sizeof( buf)/sizeof( buf[0]) );
- strcat( buf, " " );
-
- histMoves[index].memoOffset = AppendToHistoryMemo( buf, 0, 0 );
- histMoves[index].memoLength = strlen(buf)-1;
-
- /* PV info (if any) */
- if( appData.showEvalInMoveHistory && currPvInfo[index].depth > 0 ) {
- sprintf( buf, "{%s%.2f/%d} ",
- currPvInfo[index].score >= 0 ? "+" : "",
- currPvInfo[index].score / 100.0,
- currPvInfo[index].depth );
-
- AppendToHistoryMemo( buf, 0, 1); // [HGM] 1 means gray
- }
-}
-
-// back-end
-void
-RefreshMemoContent ()
-{
- int i;
-
- ClearHistoryMemo();
-
- for( i=currFirst; i<currLast; i++ ) {
- AppendMoveToMemo( i );
- }
-}
-
-// back-end part taken out of HighlightMove to determine character positions
-static void
-DoHighlight (int index, int onoff)
-{
- if( index >= 0 && index < MAX_MOVES ) {
- HighlightMove( histMoves[index].memoOffset,
- histMoves[index].memoOffset + histMoves[index].memoLength, onoff );
- }
-}
-
-// back-end, now that a wrapper is provided for the front-end code to do the actual scrolling
-void
-MemoContentUpdated ()
-{
- int caretPos;
-
- if(lastCurrent <= currLast) DoHighlight( lastCurrent, FALSE );
-
- lastFirst = currFirst;
- lastLast = currLast;
- lastCurrent = currCurrent;
- lastGames = storedGames;
- lastLastMove[0] = '\0';
-
- if( lastLast > 0 ) {
- safeStrCpy( lastLastMove, SavePart( currMovelist[lastLast-1] ) , sizeof( lastLastMove)/sizeof( lastLastMove[0]) );
- }
-
- /* Deselect any text, move caret to end of memo */
- if( currCurrent >= 0 ) {
- caretPos = histMoves[currCurrent].memoOffset + histMoves[currCurrent].memoLength;
- }
- else {
- caretPos = -1;
- }
-
- ScrollToCurrent(caretPos);
- DoHighlight( currCurrent, TRUE ); // [HGM] moved last, because in X some scrolling methods spoil highlighting
-}
-
-// back-end. Must be called as double-click call-back on move-history text edit
-void
-FindMoveByCharIndex (int char_index)
-{
- int index;
-
- for( index=currFirst; index<currLast; index++ ) {
- if( char_index >= histMoves[index].memoOffset &&
- char_index < (histMoves[index].memoOffset + histMoves[index].memoLength) )
- {
- ToNrEvent( index + 1 ); // moved here from call-back
- }
- }
-}
-
-// back-end. In WinBoard called by call-back, but could be called directly by SetIfExists?
-void
-UpdateMoveHistory ()
-{
- /* Update the GUI */
- if( OnlyCurrentPositionChanged() ) {
- /* Only "cursor" changed, no need to update memo content */
- }
- else if( OneMoveAppended() ) {
- AppendMoveToMemo( currCurrent );
- }
- else {
- RefreshMemoContent();
- }
-
- MemoContentUpdated();
-}
-
-// back-end
-void
-MoveHistorySet (char movelist[][2*MOVE_LEN], int first, int last, int current, ChessProgramStats_Move * pvInfo)
-{
- /* [AS] Danger! For now we rely on the movelist parameter being a static variable! */
-
- currMovelist = movelist;
- currFirst = first;
- currLast = last;
- currCurrent = current;
- currPvInfo = pvInfo;
-
- if(MoveHistoryDialogExists())
- UpdateMoveHistory(); // [HGM] call this directly, in stead of through call-back
-}
projects / xboard.git / blobdiff