Begin to remove platform-dependent code from the Fl.H header file.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11482 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/Fl.H

@@ -207,17 +207,8 @@ public: // should be private!
   static Fl_Window* grab_;
   static int compose_state; // used for dead keys (WIN32) or marked text (MacOS)
   static void call_screen_init(); // recompute screen number and dimensions
-#ifdef __APPLE__ // PORTME: add for all platforms - additional functions
   static void reset_marked_text(); // resets marked text
   static void insertion_point_location(int x, int y, int height); // sets window coordinates & height of insertion point
-#elif defined(WIN32)
-  // not needed in WIN32
-#elif defined(FL_PORTING)
-# pragma message "FL_PORTING: add these functions to all platforms?"
-  // no default implementation
-#else
-  // not needed in X11
-#endif
 #endif // FL_DOXYGEN
   
   

FL/Fl_System_Driver.H

@@ -120,6 +120,13 @@ public:
   virtual unsigned utf8from_mb(char* dst, unsigned dstlen, const char* src, unsigned srclen);
   // implement to shield fprintf() from locale changes in decimal point
   virtual int clocale_printf(FILE *output, const char *format, va_list args);
+  /* Implement to indicate whether complex text input may involve marked text.
+   When it does, has_marked_text returns non zero and reset_marked_text() and
+   insertion_point_location() must also be implemented.
+  */
+  virtual int has_marked_text() { return 0; }
+  virtual void reset_marked_text() {}
+  virtual void insertion_point_location(int x, int y, int height) {}
 };
 
 #endif // FL_SYSTEM_DRIVER_H

src/Fl.cxx

@@ -1882,6 +1882,14 @@ int Fl::dnd()
   return Fl_System_Driver::driver()->dnd();
 }
 
+void Fl::reset_marked_text() {
+  Fl_System_Driver::driver()->reset_marked_text();
+}
+
+void Fl::insertion_point_location(int x, int y, int height) { // sets window coordinates & height of insertion point
+  Fl_System_Driver::driver()->insertion_point_location(x, y, height);
+}
+
 //
 // End of "$Id$".
 //

src/Fl_Input.cxx

@@ -599,14 +599,12 @@ int Fl_Input::handle(int event) {
   static int dnd_save_position, dnd_save_mark, drag_start = -1, newpos;
   static Fl_Widget *dnd_save_focus = NULL;
   switch (event) {
-#ifdef __APPLE__ // PORTME: compose text
     case FL_UNFOCUS:
-      if (Fl::compose_state) {
+      if (Fl_System_Driver::driver()->has_marked_text() && Fl::compose_state) {
 	this->mark( this->position() );
 	Fl::reset_marked_text();
       }
       break;
-#endif
     case FL_FOCUS:
       switch (Fl::event_key()) {
         case FL_Right:

src/Fl_Input_.cxx

@@ -395,9 +395,7 @@ void Fl_Input_::drawtext(int X, int Y, int W, int H) {
       } else {
         fl_rectf((int)(xpos+curx+0.5), Y+ypos, 2, height);
       }
-#ifdef __APPLE__ // PORTME: Fl_Screen_Driver - compose
       Fl::insertion_point_location(xpos+curx, Y+ypos+height, height);
-#endif
     }
 
   CONTINUE:

src/Fl_Text_Display.cxx

@@ -2303,9 +2303,7 @@ void Fl_Text_Display::draw_cursor( int X, int Y ) {
   if ( X < text_area.x - 1 || X > text_area.x + text_area.w )
     return;
 
-#ifdef __APPLE__ // PORTME: Fl_Screen_Driver - platform compose
   Fl::insertion_point_location(X, bot, fontHeight);
-#endif
   /* For cursors other than the block, make them around 2/3 of a character
    width, rounded to an even number of pixels so that X will draw an
    odd number centered on the stem at x. */

src/Fl_Text_Editor.cxx

@@ -586,13 +586,11 @@ int Fl_Text_Editor::handle(int event) {
 
     case FL_UNFOCUS:
       show_cursor(mCursorOn); // redraws the cursor
-#ifdef __APPLE__ // PORTME: Fl_Screen_Driver - platform compose
-      if (buffer()->selected() && Fl::compose_state) {
+      if (Fl_System_Driver::driver()->has_marked_text() && buffer()->selected() && Fl::compose_state) {
 	int pos = insert_position();
 	buffer()->select(pos, pos);
 	Fl::reset_marked_text();
       }
-#endif
       if (buffer()->selected()) redraw(); // Redraw selections...
     case FL_HIDE:
       if (when() & FL_WHEN_RELEASE) maybe_do_callback();

src/drivers/Darwin/Fl_Darwin_System_Driver.H

@@ -64,6 +64,9 @@ public:
   virtual int rmdir(const char* f) {return ::rmdir(f);}
   virtual int rename(const char* f, const char *n) {return ::rename(f, n);}
   virtual int clocale_printf(FILE *output, const char *format, va_list args);
+  virtual int has_marked_text();
+  virtual void reset_marked_text();
+  virtual void insertion_point_location(int x, int y, int height);
 };
 
 #endif // FL_DARWIN_SYSTEM_DRIVER_H

src/drivers/Darwin/Fl_Darwin_System_Driver.cxx

@@ -64,7 +64,11 @@ static int insertion_point_y = 0;
 static int insertion_point_height = 0;
 static bool insertion_point_location_is_valid = false;
 
-void Fl::reset_marked_text() {
+int Fl_Darwin_System_Driver::has_marked_text() {
+  return true;
+}
+
+void Fl_Darwin_System_Driver::reset_marked_text() {
   Fl::compose_state = 0;
   Fl_X::next_marked_length = 0;
   insertion_point_location_is_valid = false;
@@ -80,7 +84,7 @@ int Fl_X::insertion_point_location(int *px, int *py, int *pheight)
   return true;
 }
 
-void Fl::insertion_point_location(int x, int y, int height) {
+void Fl_Darwin_System_Driver::insertion_point_location(int x, int y, int height) {
   insertion_point_location_is_valid = true;
   insertion_point_x = x;
   insertion_point_y = y;