Changes to qemacs/display.h

Index: qemacs/display.h
diff -u qemacs/display.h:1.4 qemacs/display.h:1.5
--- qemacs/display.h:1.4	Wed May 11 11:59:03 2005
+++ qemacs/display.h	Fri May 13 10:05:24 2005
@@ -30,6 +30,7 @@
 #define QE_FAMILY_FALLBACK_MASK   0xff0000
 
 typedef struct QEFont {
+    int refcount;
     int ascent;
     int descent;
     void *private;
@@ -186,6 +187,16 @@
 QEDisplay *probe_display(void);
 QEFont *select_font(QEditScreen *s, int style, int size);
 
+static inline QEFont *lock_font(QEditScreen *s, QEFont *font) {
+    if (font && font->refcount)
+        font->refcount++;
+    return font;
+}
+static inline void release_font(QEditScreen *s, QEFont *font) {
+    if (font && font->refcount)
+        font->refcount--;
+}
+
 void selection_activate(QEditScreen *s);
 void selection_request(QEditScreen *s);