-/*\r
- * xhistory.c -- Move list window, part of X front end for XBoard\r
- * $Id$\r
- *\r
- * Copyright 2000,2009 Free Software Foundation, Inc.\r
- * ------------------------------------------------------------------------\r
- *\r
- * GNU XBoard is free software: you can redistribute it and/or modify\r
- * it under the terms of the GNU General Public License as published by\r
- * the Free Software Foundation, either version 3 of the License, or (at\r
- * your option) any later version.\r
- *\r
- * GNU XBoard is distributed in the hope that it will be useful, but\r
- * WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\r
- * General Public License for more details.\r
- *\r
- * You should have received a copy of the GNU General Public License\r
- * along with this program. If not, see http://www.gnu.org/licenses/. *\r
- *\r
- *------------------------------------------------------------------------\r
- ** See the file ChangeLog for a revision history. */\r
-\r
-#include "config.h"\r
-\r
-#include <stdio.h>\r
-#include <ctype.h>\r
-#include <errno.h>\r
-#include <sys/types.h>\r
-\r
-#if STDC_HEADERS\r
-# include <stdlib.h>\r
-# include <string.h>\r
-#else /* not STDC_HEADERS */\r
-extern char *getenv();\r
-# if HAVE_STRING_H\r
-# include <string.h>\r
-# else /* not HAVE_STRING_H */\r
-# include <strings.h>\r
-# endif /* not HAVE_STRING_H */\r
-#endif /* not STDC_HEADERS */\r
-\r
-#if HAVE_UNISTD_H\r
-# include <unistd.h>\r
-#endif\r
-\r
-#include <X11/Intrinsic.h>\r
-#include <X11/StringDefs.h>\r
-#include <X11/Shell.h>\r
-#include <X11/Xaw/Dialog.h>\r
-#include <X11/Xaw/Form.h>\r
-#include <X11/Xaw/List.h>\r
-#include <X11/Xaw/Label.h>\r
-#include <X11/Xaw/SimpleMenu.h>\r
-#include <X11/Xaw/SmeBSB.h>\r
-#include <X11/Xaw/SmeLine.h>\r
-#include <X11/Xaw/Box.h>\r
-#include <X11/Xaw/Paned.h>\r
-#include <X11/Xaw/MenuButton.h>\r
-#include <X11/cursorfont.h>\r
-#include <X11/Xaw/Text.h>\r
-#include <X11/Xaw/AsciiText.h>\r
-#include <X11/Xaw/Viewport.h>\r
-\r
-#include "common.h"\r
-#include "frontend.h"\r
-#include "backend.h"\r
-#include "xboard.h"\r
-#include "xhistory.h"\r
-#include "gettext.h"\r
-\r
-#ifdef ENABLE_NLS\r
-# define _(s) gettext (s)\r
-# define N_(s) gettext_noop (s)\r
-#else\r
-# define _(s) (s)\r
-# define N_(s) s\r
-#endif\r
-\r
-#define _LL_ 100\r
-\r
-extern Widget formWidget, shellWidget, boardWidget, menuBarWidget;\r
-extern Display *xDisplay;\r
-extern int squareSize;\r
-extern Pixmap xMarkPixmap;\r
-extern char *layoutName;\r
-\r
-struct History{\r
- String *Nr,*white,*black;\r
- int aNr; /* space actually alocated */ \r
- Widget mvn,mvw,mvb,vbox,viewport,sh;\r
- char Up;\r
-};\r
-\r
-struct History *hist=0;\r
-String dots=" ... ";\r
-Position gameHistoryX, gameHistoryY;\r
-\r
-void\r
-HistoryPopDown(w, client_data, call_data)\r
- Widget w;\r
- XtPointer client_data, call_data;\r
-{\r
- Arg args[16];\r
- int j;\r
- if(hist) {\r
- // [HGM] remember old position\r
- j = 0;\r
- XtSetArg(args[j], XtNx, &gameHistoryX); j++;\r
- XtSetArg(args[j], XtNy, &gameHistoryY); j++;\r
- XtGetValues(hist->sh, args, j);\r
-\r
- XtPopdown(hist->sh);\r
- hist->Up=False;\r
- }\r
- j=0;\r
- XtSetArg(args[j], XtNleftBitmap, None); j++;\r
- XtSetValues(XtNameToWidget(menuBarWidget, "menuMode.Show Move List"),\r
- args, j);\r
-}\r
-\r
-void HistoryMoveProc(Widget w, XtPointer closure, XtPointer call_data)\r
-{\r
- int to;\r
- XawListReturnStruct *R = (XawListReturnStruct *) call_data;\r
- if (w == hist->mvn || w == hist->mvw) {\r
- to=2*R->list_index-1;\r
- ToNrEvent(to);\r
- }\r
- else if (w == hist->mvb) {\r
- to=2*R->list_index;\r
- ToNrEvent(to);\r
- }\r
-}\r
-\r
-void HistoryAlloc(int len){\r
- int i;\r
- if(hist){\r
- free(hist->Nr[0]);free(hist->white[0]);free(hist->black[0]);\r
- free(hist->Nr);free(hist->white);free(hist->black);\r
- }\r
- else{\r
- hist=(struct History*)malloc(sizeof(struct History)); \r
- }\r
- hist->aNr=len;\r
- hist->Nr=(String*)malloc(hist->aNr*sizeof(String*));\r
- hist->white=(String*)malloc(hist->aNr*sizeof(String*));\r
- hist->black=(String*)malloc(hist->aNr*sizeof(String*));\r
- \r
- hist->Nr[0]=(String)malloc(hist->aNr*6);\r
- hist->white[0]=(String)malloc(hist->aNr*MOVE_LEN);\r
- hist->black[0]=(String)malloc(hist->aNr*MOVE_LEN);\r
-\r
- sprintf(hist->Nr[0]," ");\r
- sprintf(hist->white[0],_("White "));\r
- sprintf(hist->black[0],_("Black "));\r
- for(i=1;i<hist->aNr;i++){\r
- hist->Nr[i]= hist->Nr[i-1]+6;\r
- hist->white[i]= hist->white[i-1]+MOVE_LEN;\r
- hist->black[i]= hist->black[i-1]+MOVE_LEN;\r
- sprintf(hist->Nr[i],"%i.",i);\r
- sprintf(hist->white[i],"-----");\r
- sprintf(hist->black[i],"-----");\r
- }\r
-}\r
-\r
-\r
-#if 1\r
-/* Find empty space inside vbox form widget and redistribute it amongst\r
- the list widgets inside it. */\r
-/* This version sort of works */\r
-void\r
-HistoryFill()\r
-{\r
- Dimension w, bw;\r
- long extra;\r
- Position x, x1, x2;\r
- int j, dd;\r
- Arg args[16];\r
-\r
- j = 0;\r
- XtSetArg(args[j], XtNx, &x); j++;\r
- XtSetArg(args[j], XtNwidth, &w); j++;\r
- XtSetArg(args[j], XtNborderWidth, &bw); j++;\r
- XtGetValues(hist->mvb, args, j);\r
- x1 = x + w + 2*bw;\r
-\r
- j = 0;\r
- XtSetArg(args[j], XtNwidth, &w); j++;\r
- XtSetArg(args[j], XtNdefaultDistance, &dd); j++;\r
- XtGetValues(hist->vbox, args, j);\r
- x2 = w - dd;\r
-\r
- extra = x2 - x1;\r
- if (extra < 0) {\r
- extra = -((-extra)/2);\r
- } else {\r
- extra = extra/2;\r
- }\r
- \r
- j = 0;\r
- XtSetArg(args[j], XtNwidth, &w); j++;\r
- XtGetValues(hist->mvw, args, j);\r
- w += extra;\r
- j = 0;\r
- XtSetArg(args[j], XtNwidth, w); j++;\r
- XtSetValues(hist->mvw, args, j);\r
-\r
- j = 0;\r
- XtSetArg(args[j], XtNwidth, &w); j++;\r
- XtGetValues(hist->mvb, args, j);\r
- w += extra;\r
- j = 0;\r
- XtSetArg(args[j], XtNwidth, w); j++;\r
- XtSetValues(hist->mvb, args, j);\r
-}\r
-#else\r
-/* Find empty space inside vbox form widget and redistribute it amongst\r
- the list widgets inside it. */\r
-/* This version doesn't work */\r
-void\r
-HistoryFill()\r
-{\r
- Arg args[16];\r
- Dimension fw, niw, wiw, biw, nbw, wbw, bbw;\r
- int j, nl, wl, bl, fdd;\r
- long extra;\r
-\r
- j = 0;\r
- XtSetArg(args[j], XtNwidth, &fw); j++;\r
- XtSetArg(args[j], XtNdefaultDistance, &fdd); j++;\r
- XtGetValues(hist->vbox, args, j);\r
-\r
- j = 0;\r
- XtSetArg(args[j], XtNlongest, &nl); j++;\r
- XtSetArg(args[j], XtNinternalWidth, &niw); j++;\r
- XtSetArg(args[j], XtNborderWidth, &nbw); j++;\r
- XtGetValues(hist->mvn, args, j);\r
-\r
- j = 0;\r
- XtSetArg(args[j], XtNlongest, &wl); j++;\r
- XtSetArg(args[j], XtNinternalWidth, &wiw); j++;\r
- XtSetArg(args[j], XtNborderWidth, &wbw); j++;\r
- XtGetValues(hist->mvw, args, j);\r
-\r
- j = 0;\r
- XtSetArg(args[j], XtNlongest, &bl); j++;\r
- XtSetArg(args[j], XtNinternalWidth, &biw); j++;\r
- XtSetArg(args[j], XtNborderWidth, &bbw); j++;\r
- XtGetValues(hist->mvb, args, j);\r
-\r
- extra = fw - 4*fdd -\r
- nl - 1 - 2*niw - 2*nbw - wl - 2*wiw - 2*wbw - bl - 2*biw - 2*bbw;\r
- if (extra < 0) extra = 0;\r
-\r
- j = 0;\r
- XtSetArg(args[j], XtNwidth, nl + 1 + 2*niw); j++;\r
- XtSetValues(hist->mvn, args, j);\r
-\r
- j = 0;\r
- XtSetArg(args[j], XtNwidth, wl + 2*wiw + extra/2); j++;\r
- XtSetValues(hist->mvw, args, j);\r
-\r
- j = 0;\r
- XtSetArg(args[j], XtNwidth, bl + 2*biw + extra/2); j++;\r
- XtSetValues(hist->mvb, args, j);\r
-}\r
-#endif\r
-\r
-void HistorySet(char movelist[][2*MOVE_LEN],int first,int last,int current){\r
- int i,b,m;\r
- if(hist){\r
- if(last >= hist->aNr) HistoryAlloc(last+_LL_);\r
- for(i=0;i<last;i++) {\r
- if((i%2)==0) { \r
- if(movelist[i][0]) {\r
- char* p = strchr(movelist[i], ' ');\r
- if (p) {\r
- strncpy(hist->white[i/2+1], movelist[i], p-movelist[i]);\r
- hist->white[i/2+1][p-movelist[i]] = NULLCHAR;\r
- } else {\r
- strcpy(hist->white[i/2+1],movelist[i]);\r
- } \r
- } else {\r
- strcpy(hist->white[i/2+1],dots);\r
- }\r
- } else {\r
- if(movelist[i][0]) {\r
- char* p = strchr(movelist[i], ' ');\r
- if (p) {\r
- strncpy(hist->black[i/2+1], movelist[i], p-movelist[i]);\r
- hist->black[i/2+1][p-movelist[i]] = NULLCHAR;\r
- } else {\r
- strcpy(hist->black[i/2+1],movelist[i]);\r
- } \r
- } else {\r
- strcpy(hist->black[i/2+1],"");\r
- }\r
- }\r
- }\r
- strcpy(hist->black[last/2+1],"");\r
- b=first/2;\r
- m=(last+3)/2-b;\r
- XawFormDoLayout(hist->vbox, False);\r
- XawListChange(hist->mvn,hist->Nr+b,m,0,True);\r
- XawListChange(hist->mvw,hist->white+b,m,0,True);\r
- XawListChange(hist->mvb,hist->black+b,m,0,True);\r
- HistoryFill();\r
- XawFormDoLayout(hist->vbox, True);\r
- if(current<0){\r
- XawListUnhighlight(hist->mvw);\r
- XawListUnhighlight(hist->mvb);\r
- }\r
- else if((current%2)==0){\r
- XawListHighlight(hist->mvw, current/2+1);\r
- XawListUnhighlight(hist->mvb);\r
- }\r
- else{\r
- XawListUnhighlight(hist->mvw);\r
- if(current) XawListHighlight(hist->mvb, current/2+1);\r
- else XawListUnhighlight(hist->mvb);\r
- }\r
- }\r
-}\r
-\r
-Widget HistoryCreate()\r
-{\r
- Arg args[16];\r
- int i,j;\r
-\r
- Widget layout,form,b_close;\r
- String trstr=\r
- "<Key>Up: BackwardProc() \n \\r
- <Key>Left: BackwardProc() \n \\r
- <Key>Down: ForwardProc() \n \\r
- <Key>Right: ForwardProc() \n";\r
- /*--- allocate memory for move-strings ---*/\r
- HistoryAlloc(_LL_);\r
- \r
- /*-------- create the widgets ---------------*/\r
- j = 0;\r
- XtSetArg(args[j], XtNresizable, True); j++;\r
- XtSetArg(args[j], XtNallowShellResize, True); j++; \r
-#if TOPLEVEL\r
- hist->sh =\r
- XtCreatePopupShell(_("Move list"), topLevelShellWidgetClass,\r
- shellWidget, args, j);\r
-#else\r
- hist->sh =\r
- XtCreatePopupShell(_("Move list"), transientShellWidgetClass,\r
- shellWidget, args, j);\r
-#endif \r
- j = 0;\r
- XtSetArg(args[j], XtNborderWidth, 0); j++;\r
- XtSetArg(args[j], XtNdefaultDistance, 0); j++;\r
- layout =\r
- XtCreateManagedWidget(layoutName, formWidgetClass, hist->sh,\r
- args, j);\r
- \r
- j = 0;\r
- XtSetArg(args[j], XtNborderWidth, 0); j++;\r
- XtSetArg(args[j], XtNresizable, True); j++;\r
- \r
- form =\r
- XtCreateManagedWidget("form", formWidgetClass, layout, args, j);\r
- j=0;\r
-\r
- j = 0;\r
-\r
- XtSetArg(args[j], XtNtop, XtChainTop); j++;\r
- XtSetArg(args[j], XtNbottom, XtChainBottom); j++;\r
- XtSetArg(args[j], XtNleft, XtChainLeft); j++;\r
- XtSetArg(args[j], XtNright, XtChainRight); j++;\r
-\r
- XtSetArg(args[j], XtNborderWidth, 1); j++;\r
- XtSetArg(args[j], XtNresizable, False); j++;\r
- XtSetArg(args[j], XtNallowVert, True); j++;\r
- XtSetArg(args[j], XtNallowHoriz, True); j++;\r
- XtSetArg(args[j], XtNforceBars, False); j++;\r
- XtSetArg(args[j], XtNheight, 280); j++;\r
- hist->viewport =\r
- XtCreateManagedWidget("viewport", viewportWidgetClass,\r
- form, args, j);\r
- j=0;\r
- XtSetArg(args[j], XtNborderWidth, 0); j++;\r
- XtSetArg(args[j], XtNorientation,XtorientHorizontal);j++;\r
- hist->vbox =\r
- XtCreateManagedWidget("vbox", formWidgetClass, hist->viewport, args, j);\r
- \r
- j=0;\r
- XtSetArg(args[j], XtNtop, XtChainTop); j++;\r
- XtSetArg(args[j], XtNbottom, XtChainTop); j++;\r
- XtSetArg(args[j], XtNleft, XtChainLeft); j++;\r
- XtSetArg(args[j], XtNright, XtChainLeft); j++; \r
- \r
- XtSetArg(args[j], XtNdefaultColumns, 1); j++;\r
- XtSetArg(args[j], XtNforceColumns, True); j++;\r
- XtSetArg(args[j], XtNverticalList, True); j++;\r
- XtSetArg(args[j], XtNborderWidth, 0); j++;\r
- XtSetArg(args[j], XtNresizable,True);j++;\r
- XtSetArg(args[j], XtNleft, XtChainLeft); j++;\r
- hist->mvn = XtCreateManagedWidget("movesn", listWidgetClass,\r
- hist->vbox, args, j);\r
- XtAddCallback(hist->mvn, XtNcallback, HistoryMoveProc, (XtPointer) hist);\r
-\r
- j=0;\r
- XtSetArg(args[j], XtNtop, XtChainTop); j++;\r
- XtSetArg(args[j], XtNbottom, XtChainTop); j++;\r
- XtSetArg(args[j], XtNleft, XtChainLeft); j++;\r
- XtSetArg(args[j], XtNright, XtRubber); j++; \r
- \r
- XtSetArg(args[j], XtNdefaultColumns, 1); j++;\r
- XtSetArg(args[j], XtNforceColumns, True); j++;\r
- XtSetArg(args[j], XtNverticalList, True); j++;\r
- XtSetArg(args[j], XtNborderWidth, 0); j++;\r
- XtSetArg(args[j], XtNresizable,True);j++;\r
- XtSetArg(args[j], XtNfromHoriz, hist->mvn); j++;\r
- hist->mvw = XtCreateManagedWidget("movesw", listWidgetClass,\r
- hist->vbox, args, j);\r
- XtAddCallback(hist->mvw, XtNcallback, HistoryMoveProc, (XtPointer) hist);\r
-\r
- j=0;\r
- XtSetArg(args[j], XtNtop, XtChainTop); j++;\r
- XtSetArg(args[j], XtNbottom, XtChainTop); j++;\r
- XtSetArg(args[j], XtNleft, XtRubber); j++;\r
- XtSetArg(args[j], XtNright, XtRubber); j++;\r
- \r
- XtSetArg(args[j], XtNdefaultColumns, 1); j++;\r
- XtSetArg(args[j], XtNforceColumns, True); j++;\r
- XtSetArg(args[j], XtNverticalList, True); j++;\r
- XtSetArg(args[j], XtNborderWidth, 0); j++;\r
- XtSetArg(args[j], XtNresizable,True);j++;\r
- XtSetArg(args[j], XtNfromHoriz, hist->mvw); j++;\r
- hist->mvb = XtCreateManagedWidget("movesb", listWidgetClass,\r
- hist->vbox, args, j);\r
- XtAddCallback(hist->mvb, XtNcallback, HistoryMoveProc, (XtPointer) hist);\r
-\r
- j=0;\r
- XtSetArg(args[j], XtNbottom, XtChainBottom); j++;\r
- XtSetArg(args[j], XtNtop, XtChainBottom); j++;\r
- XtSetArg(args[j], XtNleft, XtChainLeft); j++;\r
- XtSetArg(args[j], XtNright, XtChainLeft); j++;\r
- XtSetArg(args[j], XtNfromVert, hist->viewport); j++;\r
- b_close= XtCreateManagedWidget(_("Close"), commandWidgetClass,\r
- form, args, j); \r
- XtAddCallback(b_close, XtNcallback, HistoryPopDown, (XtPointer) 0);\r
-\r
- XtAugmentTranslations(hist->sh,XtParseTranslationTable (trstr)); \r
-\r
- XtRealizeWidget(hist->sh);\r
- CatchDeleteWindow(hist->sh, "HistoryPopDown");\r
-\r
- for(i=1;i<hist->aNr;i++){\r
- strcpy(hist->white[i],dots);\r
- strcpy(hist->black[i],"");\r
- }\r
- \r
- return hist->sh;\r
-}\r
-\r
-void\r
-HistoryPopUp()\r
-{\r
- Arg args[16];\r
- int j;\r
-\r
- if(!hist) HistoryCreate();\r
- XtPopup(hist->sh, XtGrabNone);\r
-\r
- // [HGM] restore old position\r
- j = 0;\r
- XtSetArg(args[j], XtNx, gameHistoryX); j++;\r
- XtSetArg(args[j], XtNy, gameHistoryY); j++;\r
- XtSetValues(hist->sh, args, j);\r
-\r
- j=0;\r
- XtSetArg(args[j], XtNleftBitmap, xMarkPixmap); j++;\r
- XtSetValues(XtNameToWidget(menuBarWidget, "menuMode.Show Move List"),\r
- args, j);\r
- hist->Up=True;\r
-}\r
-\r
- \r
-void\r
-HistoryShowProc(w, event, prms, nprms)\r
- Widget w;\r
- XEvent *event;\r
- String *prms;\r
- Cardinal *nprms;\r
-{\r
- if (!hist) {\r
- HistoryCreate();\r
- HistoryPopUp();\r
- } else if (hist->Up) {\r
- HistoryPopDown(0,0,0);\r
- } else {\r
- HistoryPopUp();\r
- }\r
- ToNrEvent(currentMove);\r
-}\r
- \r
+/*
+ * New (WinBoard-style) Move history for XBoard
+ *
+ * Copyright 2009, 2010, 2011, 2012 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 <X11/Intrinsic.h>
+#include <X11/StringDefs.h>
+#include <X11/Shell.h>
+#include <X11/Xaw/Dialog.h>
+#include <X11/Xaw/Form.h>
+#include <X11/Xaw/List.h>
+#include <X11/Xaw/Label.h>
+#include <X11/Xaw/SimpleMenu.h>
+#include <X11/Xaw/SmeBSB.h>
+#include <X11/Xaw/SmeLine.h>
+#include <X11/Xaw/Box.h>
+#include <X11/Xaw/Paned.h>
+#include <X11/Xaw/MenuButton.h>
+#include <X11/cursorfont.h>
+#include <X11/Xaw/Text.h>
+#include <X11/Xaw/AsciiText.h>
+#include <X11/Xaw/Viewport.h>
+#include <X11/Xatom.h>
+#include <X11/Xmu/Atoms.h>
+
+#include "common.h"
+#include "frontend.h"
+#include "backend.h"
+#include "xhistory.h"
+#include "xboard.h"
+#include "dialogs.h"
+#include "gettext.h"
+
+#ifdef ENABLE_NLS
+# define _(s) gettext (s)
+# define N_(s) gettext_noop (s)
+#else
+# define _(s) (s)
+# define N_(s) s
+#endif
+
+// templates for calls into back-end (= history.c; should be moved to history.h header shared with it!)
+void RefreshMemoContent P((void));
+void MemoContentUpdated P((void));
+void FindMoveByCharIndex P(( int char_index ));
+
+// variables in xoptions.c
+extern Option historyOptions[];
+
+// ------------- low-level front-end actions called by MoveHistory back-end -----------------
+
+void
+HighlightMove (int from, int to, Boolean highlight)
+{
+ if(highlight)
+ XawTextSetSelection( historyOptions[0].handle, from, to ); // for lack of a better method, use selection for highighting
+}
+
+void
+ClearHistoryMemo ()
+{
+ SetWidgetText(&historyOptions[0], "", HistoryDlg);
+}
+
+// the bold argument says 0 = normal, 1 = bold typeface
+// the colorNr argument says 0 = font-default, 1 = gray
+int
+AppendToHistoryMemo (char * text, int bold, int colorNr)
+{
+ return AppendText(&historyOptions[0], text); // for now ignore bold & color stuff, as Xaw cannot handle that
+}
+
+void
+ScrollToCurrent (int caretPos)
+{
+ Arg args[10];
+ char *s;
+ int len;
+ GetWidgetText(&historyOptions[0], &s);
+ len = strlen(s);
+ if(caretPos < 0 || caretPos > len) caretPos = len;
+ if(caretPos > len-30) { // scroll to end, which causes no flicker
+ static XEvent event;
+ XtCallActionProc(historyOptions[0].handle, "end-of-file", &event, NULL, 0);
+ return;
+ }
+ // the following leads to a very annoying flicker, even when no scrolling is done at all.
+ XtSetArg(args[0], XtNinsertPosition, caretPos); // this triggers scrolling in Xaw
+ XtSetArg(args[1], XtNdisplayCaret, False);
+ XtSetValues(historyOptions[0].handle, args, 2);
+}
+
+
+// ------------------------------ callbacks --------------------------
+
+char *historyText;
+char historyTranslations[] =
+"<Btn3Down>: select-start() \n \
+<Btn3Up>: extend-end() SelectMove() \n";
+
+void
+SelectMove (Widget w, XEvent * event, String * params, Cardinal * nParams)
+{
+ XawTextPosition index, dummy;
+
+ XawTextGetSelectionPos(w, &index, &dummy);
+ FindMoveByCharIndex( index ); // [HGM] also does the actual moving to it, now
+}
+
+Option historyOptions[] = {
+{ 200, T_VSCRL | T_FILL | T_WRAP | T_TOP, 400, NULL, (void*) &historyText, "", NULL, TextBox, "" },
+{ 0, NO_OK, 0, NULL, (void*) NULL, "", NULL, EndMark , "" }
+};
+
+// ------------ standard entry points into MoveHistory code -----------
+
+Boolean
+MoveHistoryIsUp ()
+{
+ return shellUp[HistoryDlg];
+}
+
+Boolean
+MoveHistoryDialogExists ()
+{
+ return DialogExists(HistoryDlg);
+}
+
+void
+HistoryPopUp ()
+{
+ if(GenericPopUp(historyOptions, _("Move list"), HistoryDlg, BoardWindow, NONMODAL, 1))
+ AddHandler(&historyOptions[0], 0);
+ MarkMenu("View.MoveHistory", HistoryDlg);
+}
+
+void
+HistoryShowProc ()
+{
+ if (!shellUp[HistoryDlg]) {
+ ASSIGN(historyText, "");
+ HistoryPopUp();
+ RefreshMemoContent();
+ MemoContentUpdated();
+ } else PopDown(HistoryDlg);
+ ToNrEvent(currentMove);
+}