X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=filebrowser%2Fdraw.c;h=abab957979d3c642164ace9e0ef43a5bd4557dc8;hb=a7db862b2f44d23b358a1319cd8a374cf88c24fd;hp=47efa17abaea05a4282a1edd96052d2152c40396;hpb=373488935bf19680e26a3b51e617c9586dd438c6;p=xboard.git

diff --git a/filebrowser/draw.c b/filebrowser/draw.c
index 47efa17..abab957 100644
--- a/filebrowser/draw.c
+++ b/filebrowser/draw.c
@@ -38,6 +38,11 @@
 #endif
 #define ABS(x) (((x) < 0) ? (-(x)) : (x))
 
+/* added missing prototypes */
+extern char SFstatChar(struct stat*);
+extern int SFchdir(char *);
+void SFvSliderMovedCallback(Widget, int, int);
+
 typedef struct {
 	char *fontname;
 } TextData, *textPtr;
@@ -59,6 +64,7 @@ static int SFcurrentListY;
 
 static XtIntervalId SFscrollTimerId;
 
+void
 SFinitFont()
 {
 	TextData	*data;
@@ -84,8 +90,10 @@ SFinitFont()
 	SFcharWidth = (SFfont->max_bounds.width + SFfont->min_bounds.width) / 2;
 	SFcharAscent = SFfont->max_bounds.ascent;
 	SFcharHeight = SFcharAscent + SFfont->max_bounds.descent;
+	return;
 }
 
+void
 SFcreateGC()
 {
 	XGCValues	gcValues;
@@ -149,8 +157,10 @@ SFcreateGC()
 		1,
 		Unsorted
 	);
+	return;
 }
 
+void
 SFclearList(n, doScroll)
 	int	n;
 	int	doScroll;
@@ -191,9 +201,10 @@ SFclearList(n, doScroll)
 				(float) 1.0);
 		}
 	}
+	return;
 }
 
-static
+static void
 SFdeleteEntry(dir, entry)
 	SFDir	*dir;
 	SFEntry	*entry;
@@ -242,15 +253,17 @@ SFdeleteEntry(dir, entry)
 		(float) (((double) ((dir->nEntries < SFlistSize) ?
 			dir->nEntries : SFlistSize)) / dir->nEntries)
 	);
+	return;
 }
 
-static
+static void
 SFwriteStatChar(name, last, statBuf)
 	char		*name;
 	int		last;
 	struct stat	*statBuf;
 {
 	name[last] = SFstatChar(statBuf);
+	return;
 }
 
 static int
@@ -320,7 +333,7 @@ SFstatAndCheck(dir, entry)
 	return 0;
 }
 
-static
+static void
 SFdrawStrings(w, dir, from, to)
 	register Window	w;
 	register SFDir	*dir;
@@ -395,8 +408,10 @@ SFdrawStrings(w, dir, from, to)
 			);
 		}
 	}
+	return;
 }
 
+void
 SFdrawList(n, doScroll)
 	int	n;
 	int	doScroll;
@@ -420,8 +435,10 @@ SFdrawList(n, doScroll)
 		);
 		SFdrawStrings(w, dir, 0, SFlistSize - 1);
 	}
+	return;
 }
 
+void
 SFdrawLists(doScroll)
 	int	doScroll;
 {
@@ -430,9 +447,10 @@ SFdrawLists(doScroll)
 	for (i = 0; i < NR; i++) {
 		SFdrawList(i, doScroll);
 	}
+	return;
 }
 
-static
+static void
 SFinvertEntry(n)
 	register int	n;
 {
@@ -445,6 +463,7 @@ SFinvertEntry(n)
 		SFentryWidth,
 		SFentryHeight
 	);
+	return;
 }
 
 static unsigned long
@@ -486,7 +505,7 @@ SFscrollTimer(p, id)
 	int	save;
 	int     n;
 
-        n = (int) p;
+        n = (int)(intptr_t) p;
 
 	dir = &(SFdirs[SFdirPtr + n]);
 	save = dir->vOrigin;
@@ -516,7 +535,7 @@ SFscrollTimer(p, id)
 
 	if (SFbuttonPressed) {
 		SFscrollTimerId = XtAppAddTimeOut(SFapp,
-			SFscrollTimerInterval(), SFscrollTimer, (XtPointer) n);
+			SFscrollTimerInterval(), SFscrollTimer, (XtPointer)(intptr_t) n);
 	}
 }
 
@@ -557,7 +576,7 @@ SFnewInvertEntry(n, event)
 				SFscrollTimerAdded = 1;
 				SFscrollTimerId = XtAppAddTimeOut(SFapp,
 					SFscrollTimerInterval(), SFscrollTimer,
-					(XtPointer) n);
+					(XtPointer)(intptr_t) n);
 			}
 		}
 
@@ -620,20 +639,7 @@ SFmotionList(w, n, event)
 			SFinvertEntry(n);
 		}
 	}
-}
-
-/* ARGSUSED */
-void
-SFvFloatSliderMovedCallback(w, n, fnew)
-	Widget	w;
-	int	n;
-	float	*fnew;
-{
-	int	new;
-
-	new = (*fnew) * SFdirs[SFdirPtr + n].nEntries;
-
-	SFvSliderMovedCallback(w, n, new);
+	return;
 }
 
 /* ARGSUSED */
@@ -649,7 +655,10 @@ SFvSliderMovedCallback(w, n, new)
 
 	dir = &(SFdirs[SFdirPtr + n]);
 
+
 	old = dir->vOrigin;
+	if(new == -1) new = old + 1; else if(new == -2) new = old - 1; // [HGM] indicates scroll direction on mousewheel event
+	if(new < 0 || new > dir->nEntries - SFlistSize) return;
 	dir->vOrigin = new;
 
 	if (old == new) {
@@ -724,6 +733,21 @@ SFvSliderMovedCallback(w, n, new)
 
 /* ARGSUSED */
 void
+SFvFloatSliderMovedCallback(w, n, fnew)
+	Widget	w;
+	int	n;
+	float	*fnew;
+{
+	int	new;
+
+	new = (*fnew) * SFdirs[SFdirPtr + n].nEntries;
+
+	SFvSliderMovedCallback(w, n, new);
+}
+
+
+/* ARGSUSED */
+void
 SFvAreaSelectedCallback(w, n, pnew)
 	Widget	w;
 	int	n;