Restored the possibility to call Fl::set_font()

in a global initializer (before main() starts).


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10726 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/Fl_Device.H

@@ -585,10 +585,8 @@ class FL_EXPORT Fl_Display_Device : public Fl_Surface_Device {
 public:
   static const char *class_id;
   const char *class_name() {return class_id;};
-  /** \brief A constructor that sets the graphics driver used by the display */
   Fl_Display_Device(Fl_Graphics_Driver *graphics_driver);
-  /** Returns the platform display device. */
-  static inline Fl_Display_Device *display_device() {return _display;};
+  static Fl_Display_Device *display_device();
 #ifdef __APPLE__
   static bool high_resolution() {return high_res_window_;}
 #endif

FL/mac.H

@@ -197,6 +197,7 @@ public:
   static const int CoreText_threshold;  // Mac OS version from which the Core Text API is used to display text
   static Fl_Fontdesc* calc_fl_fonts(void); // computes the fl_fonts global variable
   static int dnd(int use_selection); // call Fl_X::dnd(1) to support text dragging
+  static int calc_mac_os_version(void); // computes the fl_mac_os_version global variable
 private:
 #if FLTK_ABI_VERSION >= 10304
   CGRect* subRect_;           // makes sure subwindow remains inside its parent window

src/Fl_Device.cxx

@@ -71,11 +71,28 @@ void Fl_Graphics_Driver::text_extents(const char*t, int n, int& dx, int& dy, int
   dy = descent();
 }
 
-Fl_Display_Device::Fl_Display_Device(Fl_Graphics_Driver *graphics_driver) : Fl_Surface_Device( graphics_driver) {
+/**  A constructor that sets the graphics driver used by the display */
+Fl_Display_Device::Fl_Display_Device(Fl_Graphics_Driver *graphics_driver) : Fl_Surface_Device(graphics_driver) {
 this->set_current();
 };
 
 
+/** Returns the platform display device. */
+Fl_Display_Device *Fl_Display_Device::display_device() {
+  static Fl_Display_Device *display = new Fl_Display_Device(new
+#if defined(__APPLE__)
+                                                                  Fl_Quartz_Graphics_Driver
+#elif defined(WIN32)
+                                                                  Fl_GDI_Graphics_Driver
+#else
+                                                                  Fl_Xlib_Graphics_Driver
+#endif
+                                                                 );
+  return display;
+};
+
+Fl_Display_Device *Fl_Display_Device::_display = Fl_Display_Device::display_device();
+
 //
 // End of "$Id$".
 //

src/Fl_cocoa.mm

@@ -89,14 +89,13 @@
 static void convert_crlf(char * string, size_t len);
 static void createAppleMenu(void);
 static void cocoaMouseHandler(NSEvent *theEvent);
-static int calc_mac_os_version();
 static void clipboard_check(void);
 static NSString *calc_utf8_format(void);
 static unsigned make_current_counts = 0; // if > 0, then Fl_Window::make_current() can be called only once
 static Fl_X *fl_x_to_redraw = NULL; // set by Fl_X::flush() to the Fl_X object of the window to be redrawn
 static NSBitmapImageRep* rect_to_NSBitmapImageRep(Fl_Window *win, int x, int y, int w, int h);
 
-Fl_Display_Device *Fl_Display_Device::_display = new Fl_Display_Device(new Fl_Quartz_Graphics_Driver); // the platform display
+int fl_mac_os_version = Fl_X::calc_mac_os_version();		// the version number of the running Mac OS X (e.g., 100604 for 10.6.4)
 
 // public variables
 CGContextRef fl_gc = 0;
@@ -105,8 +104,6 @@
 //int fl_disable_transient_for;           // secret method of removing TRANSIENT_FOR
 Window fl_window;
 Fl_Window *Fl_Window::current_;
-int fl_mac_os_version = calc_mac_os_version();		// the version number of the running Mac OS X (e.g., 100604 for 10.6.4)
-Fl_Fontdesc* fl_fonts = Fl_X::calc_fl_fonts();
 static NSString *utf8_format = calc_utf8_format();
 
 // forward declarations of variables in this file
@@ -4492,7 +4489,8 @@ static void apply_titlebar_clipping(CGContextRef gc, int w, int h) {
 
 /* Returns the version of the running Mac OS as an int such as 100802 for 10.8.2
  */
-static int calc_mac_os_version() {
+int Fl_X::calc_mac_os_version() {
+  if (fl_mac_os_version) return fl_mac_os_version;
   int M, m, b = 0;
   NSAutoreleasePool *localPool = [[NSAutoreleasePool alloc] init];
 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_10

src/Fl_win32.cxx

@@ -87,10 +87,6 @@ static void fl_clipboard_notify_target(HWND wnd);
 static void fl_clipboard_notify_untarget(HWND wnd);
 
 // Internal variables
-static Fl_GDI_Graphics_Driver fl_gdi_driver;
-static Fl_Display_Device fl_gdi_display(&fl_gdi_driver);
-Fl_Display_Device *Fl_Display_Device::_display = &fl_gdi_display; // the platform display
-
 static HWND clipboard_wnd = 0;
 static HWND next_clipboard_wnd = 0;
 

src/Fl_x.cxx

@@ -72,9 +72,6 @@ static bool have_xfixes = false;
 #  if HAVE_XRENDER
 #    include <X11/extensions/Xrender.h>
 #  endif
-static Fl_Xlib_Graphics_Driver fl_xlib_driver;
-static Fl_Display_Device fl_xlib_display(&fl_xlib_driver);
-Fl_Display_Device *Fl_Display_Device::_display = &fl_xlib_display;// the platform display
 
 ////////////////////////////////////////////////////////////////
 // interface to poll/select call:

src/fl_font_mac.cxx

@@ -19,6 +19,8 @@
 #include <config.h>
 #include <math.h>
 
+Fl_Fontdesc* fl_fonts = Fl_X::calc_fl_fonts();
+
 /* from fl_utf.c */
 extern unsigned fl_utf8toUtf16(const char* src, unsigned srclen, unsigned short* dst, unsigned dstlen);
 
@@ -235,6 +237,8 @@ static UniChar *mac_Utf8_to_Utf16(const char *txt, int len, int *new_len)
 
 Fl_Fontdesc* Fl_X::calc_fl_fonts(void)
 {
+  if (fl_fonts) return fl_fonts;
+  if (!fl_mac_os_version) fl_mac_os_version = calc_mac_os_version();
 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
   return (fl_mac_os_version >= Fl_X::CoreText_threshold ? built_in_table_PS : built_in_table_full);
 #else

src/fl_set_font.cxx

@@ -32,6 +32,9 @@ static int table_size;
   the string is not copied, so the string must be in static memory.
 */    
 void Fl::set_font(Fl_Font fnum, const char* name) {
+#ifdef __APPLE__
+  if (!fl_fonts) fl_fonts = Fl_X::calc_fl_fonts();
+#endif
   while (fnum >= table_size) {
     int i = table_size;
     if (!i) {	// don't realloc the built-in table
@@ -70,7 +73,7 @@ void Fl::set_font(Fl_Font fnum, const char* name) {
   s->xlist = 0;
 #endif
   s->first = 0;
-  fl_font(-1, 0);
+  Fl_Display_Device::display_device()->driver()->font(-1, 0);
 }
 /** Copies one face to another. */
 void Fl::set_font(Fl_Font fnum, Fl_Font from) {
@@ -81,7 +84,12 @@ void Fl::set_font(Fl_Font fnum, Fl_Font from) {
     face. Under X this value is passed to XListFonts to get all the sizes
     of this face.
 */
-const char* Fl::get_font(Fl_Font fnum) {return fl_fonts[fnum].name;}
+const char* Fl::get_font(Fl_Font fnum) {
+#ifdef __APPLE__
+  if (!fl_fonts) fl_fonts = Fl_X::calc_fl_fonts();
+#endif
+  return fl_fonts[fnum].name;
+}
 
 //
 // End of "$Id$".

src/fl_set_fonts_mac.cxx

@@ -29,6 +29,7 @@
 
 // turn a stored font name into a pretty name:
 const char* Fl::get_font_name(Fl_Font fnum, int* ap) {
+  if (!fl_fonts) fl_fonts = Fl_X::calc_fl_fonts();
   Fl_Fontdesc *f = fl_fonts + fnum;
   if (!f->fontname[0]) {
 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
@@ -180,6 +181,7 @@ else {
 
 static int array[128];
 int Fl::get_font_sizes(Fl_Font fnum, int*& sizep) {
+  if (!fl_fonts) fl_fonts = Fl_X::calc_fl_fonts();
   Fl_Fontdesc *s = fl_fonts+fnum;
   if (!s->name) s = fl_fonts; // empty slot in table, use entry 0
   int cnt = 0;