Adding a Frequently Asked Questions file

[freeglut] / src / freeglut_cursor.c

diff --git a/src/freeglut_cursor.c b/src/freeglut_cursor.c
index e473e16..390e0cb 100644 (file)
--- a/src/freeglut_cursor.c
+++ b/src/freeglut_cursor.c
@@ -28,7 +28,7 @@
 #include <GL/freeglut.h>
 #include "freeglut_internal.h"
 
-#if TARGET_HOST_UNIX_X11
+#if TARGET_HOST_POSIX_X11
   #include <X11/cursorfont.h>
 #endif
 
@@ -41,9 +41,9 @@
  * apart from the windowing system version.
  */
 
-/* -- INTERNAL FUNCTIONS --------------------------------------------------- */
+/* -- PRIVATE FUNCTIONS --------------------------------------------------- */
 
-#if TARGET_HOST_UNIX_X11
+#if TARGET_HOST_POSIX_X11
 /*
  * A factory method for an empty cursor
  */
@@ -104,17 +104,14 @@ static cursorCacheEntry cursorCache[] = {
 };
 #endif
 
-/* -- INTERFACE FUNCTIONS -------------------------------------------------- */
+/* -- INTERNAL FUNCTIONS ---------------------------------------------------- */
 
 /*
  * Set the cursor image to be used for the current window
  */
-void FGAPIENTRY glutSetCursor( int cursorID )
+void fgSetCursor ( SFG_Window *window, int cursorID )
 {
-    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetCursor" );
-    FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSetCursor" );
-
-#if TARGET_HOST_UNIX_X11
+#if TARGET_HOST_POSIX_X11
     {
         Cursor cursor;
         /*
@@ -150,23 +147,25 @@ void FGAPIENTRY glutSetCursor( int cursorID )
             }
         }
 
-        if ( ( cursorIDToUse != GLUT_CURSOR_NONE ) && ( cursor == None ) ) {
+        if ( cursorIDToUse == GLUT_CURSOR_INHERIT ) {
+            XUndefineCursor( fgDisplay.Display, window->Window.Handle );
+        } else if ( cursor != None ) {
+            XDefineCursor( fgDisplay.Display, window->Window.Handle, cursor );
+        } else if ( cursorIDToUse != GLUT_CURSOR_NONE ) {
             fgError( "Failed to create cursor" );
         }
-        XDefineCursor( fgDisplay.Display,
-                       fgStructure.Window->Window.Handle, cursor );
     }
 
-#elif TARGET_HOST_WIN32 || TARGET_HOST_WINCE
+#elif TARGET_HOST_MS_WINDOWS
 
     /*
-     * This is a temporary solution only...
+     * Joe Krahn is re-writing the following code.
      */
     /* Set the cursor AND change it for this window class. */
 #       define MAP_CURSOR(a,b)                                   \
         case a:                                                  \
             SetCursor( LoadCursor( NULL, b ) );                  \
-            SetClassLong( fgStructure.Window->Window.Handle,     \
+            SetClassLong( window->Window.Handle,                 \
                           GCL_HCURSOR,                           \
                           ( LONG )LoadCursor( NULL, b ) );       \
         break;
@@ -175,7 +174,7 @@ void FGAPIENTRY glutSetCursor( int cursorID )
 #       define ZAP_CURSOR(a,b)                                   \
         case a:                                                  \
             SetCursor( NULL );                                   \
-            SetClassLong( fgStructure.Window->Window.Handle,     \
+            SetClassLong( window->Window.Handle,                 \
                           GCL_HCURSOR, ( LONG )NULL );           \
         break;
 
@@ -211,7 +210,20 @@ void FGAPIENTRY glutSetCursor( int cursorID )
     }
 #endif
 
-    fgStructure.Window->State.Cursor = cursorID;
+    window->State.Cursor = cursorID;
+}
+
+/* -- INTERFACE FUNCTIONS -------------------------------------------------- */
+
+/*
+ * Set the cursor image to be used for the current window
+ */
+void FGAPIENTRY glutSetCursor( int cursorID )
+{
+    FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetCursor" );
+    FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSetCursor" );
+
+    fgSetCursor ( fgStructure.CurrentWindow, cursorID );
 }
 
 /*
@@ -222,19 +234,19 @@ void FGAPIENTRY glutWarpPointer( int x, int y )
     FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutWarpPointer" );
     FREEGLUT_EXIT_IF_NO_WINDOW ( "glutWarpPointer" );
 
-#if TARGET_HOST_UNIX_X11
+#if TARGET_HOST_POSIX_X11
 
     XWarpPointer(
         fgDisplay.Display,
         None,
-        fgStructure.Window->Window.Handle,
+        fgStructure.CurrentWindow->Window.Handle,
         0, 0, 0, 0,
         x, y
     );
     /* Make the warp visible immediately. */
     XFlush( fgDisplay.Display );
 
-#elif TARGET_HOST_WIN32 || TARGET_HOST_WINCE
+#elif TARGET_HOST_MS_WINDOWS
 
     {
         POINT coords;
@@ -242,7 +254,7 @@ void FGAPIENTRY glutWarpPointer( int x, int y )
         coords.y = y;
 
         /* ClientToScreen() translates {coords} for us. */
-        ClientToScreen( fgStructure.Window->Window.Handle, &coords );
+        ClientToScreen( fgStructure.CurrentWindow->Window.Handle, &coords );
         SetCursorPos( coords.x, coords.y );
     }