From 76e5723516d8510005ef608575a6ee6b5848e2c2 Mon Sep 17 00:00:00 2001
From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Tue, 10 May 2016 21:52:56 +0200
Subject: [PATCH] Abbreviate DATADIR to ~~ while saving XB themes

The path name of theme files is typically quite long in XBoard, where
installed data is very deep in the file-system tree. This path is now
recognized, and replacend by its abbreviation ~~ when storing a theme
in the -themeNames option.
---
 backend.c           |    8 +++++---
 dialogs.c           |    8 ++++++++
 winboard/winboard.c |    7 +++++++
 3 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/backend.c b/backend.c
index 2e9e18d..c5d9e9a 100644
--- a/backend.c
+++ b/backend.c
@@ -19081,8 +19081,10 @@ LoadTheme ()
 	q = appData.themeNames;
 	snprintf(buf, BUF_SIZ, "\"%s\"", nickName);
       if(appData.useBitmaps) {
-	snprintf(buf+strlen(buf), BUF_SIZ-strlen(buf), " -ubt true -lbtf \"%s\" -dbtf \"%s\" -lbtm %d -dbtm %d",
-		appData.liteBackTextureFile, appData.darkBackTextureFile,
+	snprintf(buf+strlen(buf), BUF_SIZ-strlen(buf), " -ubt true -lbtf \"%s\"",
+		Shorten(appData.liteBackTextureFile));
+	snprintf(buf+strlen(buf), BUF_SIZ-strlen(buf), " -dbtf \"%s\" -lbtm %d -dbtm %d",
+		Shorten(appData.darkBackTextureFile),
 		appData.liteBackTextureMode,
 		appData.darkBackTextureMode );
       } else {
@@ -19109,7 +19111,7 @@ LoadTheme ()
       } else {
 	snprintf(buf+strlen(buf), BUF_SIZ-strlen(buf), " -upf false");
 	if(appData.pieceDirectory[0]) {
-	  snprintf(buf+strlen(buf), BUF_SIZ-strlen(buf), " -pid \"%s\"", appData.pieceDirectory);
+	  snprintf(buf+strlen(buf), BUF_SIZ-strlen(buf), " -pid \"%s\"", Shorten(appData.pieceDirectory));
 	  if(appData.trueColors != 2) // 2 is a kludge to suppress this in WinBoard
 	    snprintf(buf+strlen(buf), BUF_SIZ-strlen(buf), " -trueColors %s", appData.trueColors ? "true" : "false");
 	}
diff --git a/dialogs.c b/dialogs.c
index 64001c2..9bab615 100644
--- a/dialogs.c
+++ b/dialogs.c
@@ -3395,3 +3395,11 @@ ActivateTheme (int col)
     DrawPosition(True, NULL);
 }
 
+char *
+Shorten (char *s)
+{
+    static char buf[MSG_SIZ];
+    if(strstr(s, dataDir) != s) return s;
+    snprintf(buf, MSG_SIZ, "~~%s", s + strlen(dataDir));
+    return buf;
+}
diff --git a/winboard/winboard.c b/winboard/winboard.c
index e4b8692..2301293 100644
--- a/winboard/winboard.c
+++ b/winboard/winboard.c
@@ -3755,6 +3755,7 @@ void DrawSeekClose()
 
 
 
+
 VOID
 HDCDrawPosition(HDC hdc, BOOLEAN repaint, Board board)
 {
@@ -6272,6 +6273,7 @@ InitComboStringsFromOption(HANDLE hwndCombo, char *str)
     str = buf1;
   }
 
+
   SendMessage(hwndCombo, CB_RESETCONTENT, 0, 0);
 
   for (;;) {
@@ -8530,6 +8532,11 @@ DisplayInformation(char *str)
   (void) MessageBox(hwndMain, str, _("Information"), MB_OK|MB_ICONINFORMATION);
 }
 
+char *
+Shorten (char *s)
+{
+  return s;
+}
 
 VOID
 DisplayNote(char *str)
-- 
1.7.0.4