Add USI/UCCI checkbox to Load Engine dialog

Assign a default command to the -uxiAdapter when it was not yet defined,
as this will be used after ticking the checkbox, and the compile-time
default for it was an empty string, and will have found its way in
the user settings files of most users (making configuring through
the master settings file pointless).

diff --git a/dialogs.c b/dialogs.c
index 2ea3d0a..45209e6 100644 (file)
--- a/dialogs.c
+++ b/dialogs.c
@@ -1461,7 +1461,7 @@ SecondSettingsProc ()
 //----------------------------------------------- Load Engine --------------------------------------
 
 char *engineDir, *engineLine, *nickName, *params;
-Boolean isUCI, hasBook, storeVariant, v1, addToList, useNick, secondEng;
+Boolean isUCI, isUSI, hasBook, storeVariant, v1, addToList, useNick, secondEng;
 
 static void EngSel P((int n, int sel));
 static int InstallOK P((int n));
@@ -1477,6 +1477,7 @@ static Option installOptions[] = {
 {   0,  0,    0, NULL, (void*) &engineName, NULL, NULL, FileName, N_("Engine Command:") },
 {   0,  LR,   0, NULL, NULL, NULL, NULL, Label, N_("(Directory will be derived from engine path when empty)") },
 {   0,  0,    0, NULL, (void*) &isUCI, NULL, NULL, CheckBox, N_("UCI") },
+{   0,  0,    0, NULL, (void*) &isUSI, NULL, NULL, CheckBox, N_("USI/UCCI (uses specified -uxiAdapter)") },
 {   0,  0,    0, NULL, (void*) &v1, NULL, NULL, CheckBox, N_("WB protocol v1 (do not wait for engine features)") },
 {   0,  0,    0, NULL, (void*) &hasBook, NULL, NULL, CheckBox, N_("Must not use GUI book") },
 {   0,  0,    0, NULL, (void*) &addToList, NULL, NULL, CheckBox, N_("Add this engine to the list") },
@@ -1491,6 +1492,10 @@ InstallOK (int n)
        ASSIGN(engineLine, engineList[n]);
     }
     PopDown(TransientDlg); // early popdown, to allow FreezeUI to instate grab
+    if(isUSI) {
+       isUCI = 2; // kludge to pass isUSI to Load()
+       if(!*appData.ucciAdapter) { ASSIGN(appData.ucciAdapter, "usi2wb -%variant \"%fcp\"\"%fd\""); } // make sure -uxiAdapter is defined
+    }
     if(!secondEng) Load(&first, 0); else Load(&second, 1);
     return FALSE; // no double PopDown!
 }
@@ -1516,7 +1521,7 @@ EngSel (int n, int sel)
 static void
 LoadEngineProc (int engineNr, char *title)
 {
-   isUCI = storeVariant = v1 = useNick = False; addToList = hasBook = True; // defaults
+   isUCI = isUSI = storeVariant = v1 = useNick = False; addToList = hasBook = True; // defaults
    secondEng = engineNr;
    if(engineLine)   free(engineLine);   engineLine = strdup("");
    if(engineDir)    free(engineDir);    engineDir = strdup(".");