Display PV on right-clicking board

[xboard.git] / xboard.c

diff --git a/xboard.c b/xboard.c
index e4c19e4..840ac50 100644 (file)
--- a/xboard.c
+++ b/xboard.c
@@ -256,6 +256,8 @@ void HandleUserMove P((Widget w, XEvent *event,
                     String *prms, Cardinal *nprms));
 void AnimateUserMove P((Widget w, XEvent * event,
                     String * params, Cardinal * nParams));
+void HandlePV P((Widget w, XEvent * event,
+                    String * params, Cardinal * nParams));
 void WhiteClock P((Widget w, XEvent *event,
                   String *prms, Cardinal *nprms));
 void BlackClock P((Widget w, XEvent *event,
@@ -448,6 +450,7 @@ void NewVariantPopDown P(());
 void SettingsPopDown P(());
 void update_ics_width P(());
 int get_term_width P(());
+int CopyMemoProc P(());
 /*
 * XBoard depends on Xt R4 or higher
 */
@@ -831,6 +834,8 @@ XtActionsRec boardActions[] = {
     { "DrawPosition", DrawPositionProc },
     { "HandleUserMove", HandleUserMove },
     { "AnimateUserMove", AnimateUserMove },
+    { "HandlePV", HandlePV },
+    { "UnLoadPV", UnLoadPV },
     { "FileNameAction", FileNameAction },
     { "AskQuestionProc", AskQuestionProc },
     { "AskQuestionReplyAction", AskQuestionReplyAction },
@@ -954,6 +959,7 @@ XtActionsRec boardActions[] = {
     { "TimeControlPopDown", (XtActionProc) TimeControlPopDown },
     { "NewVariantPopDown", (XtActionProc) NewVariantPopDown },
     { "SettingsPopDown", (XtActionProc) SettingsPopDown },
+    { "CopyMemoProc", (XtActionProc) CopyMemoProc },
 };
 
 char globalTranslations[] =
@@ -986,6 +992,8 @@ char boardTranslations[] =
    "<Btn1Down>: HandleUserMove() \n \
    <Btn1Up>: HandleUserMove() \n \
    <Btn1Motion>: AnimateUserMove() \n \
+   <Btn3Motion>: HandlePV() \n \
+   <Btn3Up>: UnLoadPV() \n \
    Shift<Btn2Down>: XawPositionSimpleMenu(menuB) XawPositionSimpleMenu(menuD)\
                  PieceMenuPopup(menuB) \n \
    Any<Btn2Down>: XawPositionSimpleMenu(menuW) XawPositionSimpleMenu(menuD) \
@@ -1256,7 +1264,6 @@ BoardToTop()
 #define SEPCHAR " "
 
 // these two must some day move to frontend.h, when they are implemented
-Boolean MoveHistoryIsUp();
 Boolean GameListIsUp();
 
 // The option definition and parsing code common to XBoard and WinBoard is collected in this file
@@ -3671,6 +3678,8 @@ void PieceMenuPopup(w, event, params, num_params)
      Cardinal *num_params;
 {
     String whichMenu;
+
+    if (event->type != ButtonRelease) UnLoadPV(); // [HGM] pv
     if (event->type != ButtonPress) return;
     if (errorUp) ErrorPopDown();
     switch (gameMode) {
@@ -3678,12 +3687,25 @@ void PieceMenuPopup(w, event, params, num_params)
       case IcsExamining:
        whichMenu = params[0];
        break;
+      case IcsObserving:
+       if(!appData.icsEngineAnalyze) return;
       case IcsPlayingWhite:
       case IcsPlayingBlack:
-      case EditGame:
+       if(!appData.zippyPlay) goto noZip;
+      case AnalyzeMode:
+      case AnalyzeFile:
       case MachinePlaysWhite:
       case MachinePlaysBlack:
-       if (appData.testLegality &&
+      case TwoMachinesPlay: // [HGM] pv: use for showing PV
+       if (!appData.dropMenu) {
+         LoadPV(event->xbutton.x, event->xbutton.y);
+         return;
+       }
+       if(gameMode == TwoMachinesPlay || gameMode == AnalyzeMode ||
+           gameMode == AnalyzeFile || gameMode == IcsObserving) return;
+      case EditGame:
+      noZip:
+       if (!appData.dropMenu || appData.testLegality &&
            gameInfo.variant != VariantBughouse &&
            gameInfo.variant != VariantCrazyhouse) return;
        SetupDropMenu();
@@ -4428,6 +4450,12 @@ void AnimateUserMove (Widget w, XEvent * event,
     DragPieceMove(event->xmotion.x, event->xmotion.y);
 }
 
+void HandlePV (Widget w, XEvent * event,
+                     String * params, Cardinal * nParams)
+{   // [HGM] pv: walk PV
+    MovePV(event->xmotion.x, event->xmotion.y, lineGap + BOARD_HEIGHT * (squareSize + lineGap));
+}
+
 Widget CommentCreate(name, text, mutable, callback, lines)
      char *name, *text;
      int /*Boolean*/ mutable;
@@ -5520,9 +5548,9 @@ void MailMoveProc(w, event, prms, nprms)
 }
 
 /* this variable is shared between CopyPositionProc and SendPositionSelection */
-static char *selected_fen_position=NULL;
+char *selected_fen_position=NULL;
 
-static Boolean
+Boolean
 SendPositionSelection(Widget w, Atom *selection, Atom *target,
                 Atom *type_return, XtPointer *value_return,
                 unsigned long *length_return, int *format_return)