WPrefs: Moved content of 'double.h' into 'WPrefs.h'

It is not a good idea to multiply the number of header files,
specially in this case where 'double.h' defined so few things
(and lacked the usual copyright notice / include guards).

WPrefs.app/Makefile.am

@@ -36,7 +36,6 @@ WPrefs_SOURCES = \
 	WindowHandling.c \
 	Workspace.c \
 	double.c \
-	double.h \
 	editmenu.c \
 	editmenu.h \
 	xmodifier.c

WPrefs.app/MouseSettings.c

@@ -28,8 +28,6 @@
 #include <unistd.h>
 #include <math.h>
 
-/* double-click tester */
-#include "double.h"
 
 #define XSET	"xset"
 

WPrefs.app/WPrefs.h

@@ -111,6 +111,12 @@ void SetBoolForKey(Bool value, const char *defaultName);
 void SetSpeedForKey(int speed, const char *defaultName);
 
 
+/* ---[ double.c ] ------------------------------------------------------- */
+typedef struct W_DoubleTest DoubleTest;
+
+DoubleTest *CreateDoubleTest(WMWidget *parent, char *text);
+
+
 /* ---[ main.c ] --------------------------------------------------------- */
 void AddDeadChildHandler(pid_t pid, void (*handler)(void*), void *data);
 

WPrefs.app/double.c

@@ -5,8 +5,8 @@
  */
 
 #include <WINGs/WINGsP.h>
+#include "WPrefs.h"
 
-#include "double.h"
 
 typedef struct W_DoubleTest {
 	W_Class widgetClass;

WPrefs.app/double.h

@@ -1,6 +0,0 @@
-
-typedef struct W_DoubleTest DoubleTest;
-
-
-DoubleTest *CreateDoubleTest(WMWidget *parent, char *text);
-