Multiple bug fixes from Sebastien:

- Fl_GIF_Image and Fl_PNG_Image didn't close the file before
      calling Fl::error().
    - Fl_Help_View didn't clear the line array in Fl_Help_Block,
      and Fl_Help_Block::font and ::size were not used.
    - Fl_Shared_Image::get() didn't return NULL if the image
      could not be loaded.
    - Switched to more efficient code for
      Fl_Tiled_Image::color_average() and ::desaturate().
    - Don't delete children in Fl_Text_Display since the group
      will do it.
    - Fixes to filename_isdir(), filename_absolute(), and
      filename_relative().
    - Was using numbers instead of define constants for some
      OpenGL stuff under WIN32.
    - Wasn't exporting threading functions under WIN32.
    - The Fl_Widget destructor now removes from the parent to
      avoid a Purify error since the old widget would be
      referenced by the parent when it was destroyed; this has
      no apparent performance impact since Fl_Group::clear()
      sets children_ to 0, making Fl_Group::remove() very
      fast...
    - WIN32 font enumeration datatype fixes...


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@1878 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/Fl.H

@@ -1,5 +1,5 @@
 //
-// "$Id: Fl.H,v 1.8.2.11.2.9 2001/12/14 16:48:13 easysw Exp $"
+// "$Id: Fl.H,v 1.8.2.11.2.10 2001/12/19 18:15:33 easysw Exp $"
 //
 // Main header file for the Fast Light Tool Kit (FLTK).
 //
@@ -225,14 +225,14 @@ public:
   static int  visible_focus() { return visible_focus_; }
 
   // Multithreading support:
-  static void lock();
-  static void unlock();
-  static void awake(void* message = 0);
-  static void* thread_message();
+  static FL_EXPORT void lock();
+  static FL_EXPORT void unlock();
+  static FL_EXPORT void awake(void* message = 0);
+  static FL_EXPORT void* thread_message();
 };
 
 #endif // !Fl_H
 
 //
-// End of "$Id: Fl.H,v 1.8.2.11.2.9 2001/12/14 16:48:13 easysw Exp $".
+// End of "$Id: Fl.H,v 1.8.2.11.2.10 2001/12/19 18:15:33 easysw Exp $".
 //

FL/Fl_Help_View.H

@@ -1,5 +1,5 @@
 //
-// "$Id: Fl_Help_View.H,v 1.1.2.5 2001/11/24 04:12:56 easysw Exp $"
+// "$Id: Fl_Help_View.H,v 1.1.2.6 2001/12/19 18:15:33 easysw Exp $"
 //
 // Help Viewer widget definitions.
 //
@@ -55,9 +55,7 @@ struct Fl_Help_Block
 {
   const char	*start,		// Start of text
 		*end;		// End of text
-  uchar		font,		// Text font
-		size,		// Text size
-		border;		// Draw border?
+  uchar		border;		// Draw border?
   int		x,		// Indentation/starting X coordinate
 		y,		// Starting Y coordinate
 		w,		// Width
@@ -189,5 +187,5 @@ class Fl_Help_View : public Fl_Group	//// Help viewer widget
 #endif // !Fl_Help_View_H
 
 //
-// End of "$Id: Fl_Help_View.H,v 1.1.2.5 2001/11/24 04:12:56 easysw Exp $".
+// End of "$Id: Fl_Help_View.H,v 1.1.2.6 2001/12/19 18:15:33 easysw Exp $".
 //

FL/Fl_Widget.H

@@ -1,5 +1,5 @@
 //
-// "$Id: Fl_Widget.H,v 1.6.2.4.2.11 2001/11/28 20:43:44 easysw Exp $"
+// "$Id: Fl_Widget.H,v 1.6.2.4.2.12 2001/12/19 18:15:33 easysw Exp $"
 //
 // Widget header file for the Fast Light Tool Kit (FLTK).
 //
@@ -102,7 +102,7 @@ public:
   FL_EXPORT virtual void draw() = 0;
   FL_EXPORT virtual int handle(int);
   Fl_Group* parent() const {return parent_;}
-  void parent(Fl_Group* w) {parent_ = w;} // for hacks only
+  void parent(Fl_Group* w) {parent_ = w;} // for hacks only, Fl_Group::add()
 
   uchar type() const {return type_;}
   void type(uchar t) {type_ = t;}
@@ -207,5 +207,5 @@ public:
 #endif
 
 //
-// End of "$Id: Fl_Widget.H,v 1.6.2.4.2.11 2001/11/28 20:43:44 easysw Exp $".
+// End of "$Id: Fl_Widget.H,v 1.6.2.4.2.12 2001/12/19 18:15:33 easysw Exp $".
 //