Mac OS: improved text input support with visible display of marked text in text widgets.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@9761 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/mac.H

@@ -131,6 +131,7 @@ public:
   static CGContextRef none_cursor_image(void);
   static void *get_carbon_function(const char *name);
   static void screen_work_area(int &X, int &Y, int &W, int &H, int n); // compute work area of a given screen
+  static void compose_state(int);
 private:
   static void relink(Fl_Window*, Fl_Window*);
   bool subwindow;

src/Fl_Text_Display.cxx

@@ -1943,7 +1943,7 @@ void Fl_Text_Display::draw_string(int style,
       if (Fl::focus() == (Fl_Widget*)this) background = selection_color();
       else background = fl_color_average(color(), selection_color(), 0.4f);
     } else if (style & HIGHLIGHT_MASK) {
-      if (Fl::focus() == (Fl_Widget*)this) background = fl_color_average(color(), selection_color(), 0.5f);
+      if (Fl::focus() == (Fl_Widget*)this) background = fl_color_average(color(), selection_color(), Fl::compose_state ? 0.3f : 0.5f);
       else background = fl_color_average(color(), selection_color(), 0.6f);
     } else background = color();
     foreground = fl_contrast(styleRec->color, background);

src/Fl_cocoa.mm

@@ -44,6 +44,7 @@ extern "C" {
 #include <FL/Fl_Sys_Menu_Bar.H>
 #include <FL/Fl_Printer.H>
 #include <FL/Fl_Input_.H>
+#include <FL/Fl_Secret_Input.H>
 #include <FL/Fl_Text_Display.H>
 #include <stdio.h>
 #include <stdlib.h>
@@ -1674,7 +1675,6 @@ static void  q_set_window_title(NSWindow *nsw, const char * name, const char *mi
 - (BOOL)performDragOperation:(id <NSDraggingInfo>)sender;
 - (void)draggingExited:(id < NSDraggingInfo >)sender;
 - (NSDragOperation)draggingSourceOperationMaskForLocal:(BOOL)isLocal;
-- (void)FLselectMarkedText;
 @end
 
 @implementation FLView
@@ -1937,8 +1937,7 @@ static void  q_set_window_title(NSWindow *nsw, const char * name, const char *mi
   // Transform character palette actions to FL_PASTE events.
   Fl_Window *target = [(FLWindow*)[self window] getFl_Window];
   Fl::handle( (in_key_event || Fl::compose_state) ? FL_KEYBOARD : FL_PASTE, target);
-  Fl::compose_state = 0;
-  [self FLselectMarkedText];
+  Fl_X::compose_state(0);
   
   // for some reason, with the palette, the window does not redraw until the next mouse move or button push
   // sending a 'redraw()' or 'awake()' does not solve the issue!
@@ -1961,32 +1960,14 @@ static void  q_set_window_title(NSWindow *nsw, const char * name, const char *mi
 	received, newSelection.location, newSelection.length, Fl::compose_state, Fl::e_length);*/
   Fl_Window *target = [(FLWindow*)[self window] getFl_Window];
   Fl::handle(FL_KEYBOARD, target);
-  Fl::compose_state = Fl::e_length;
-  [self FLselectMarkedText];
+  Fl_X::compose_state(Fl::e_length);
 
   fl_unlock_function();
 }
 
-- (void)FLselectMarkedText
-{ // set/clear marked text as selected in text widgets
-  Fl_Widget *widget = Fl::focus();
-  if (!widget) return;
-  if (dynamic_cast<Fl_Input_*>(widget) != NULL) {
-    Fl_Input_* input = (Fl_Input_*)widget;
-    input->mark( input->position() - Fl::compose_state );
-    }
-  else if (dynamic_cast<Fl_Text_Display*>(widget) != NULL) {
-    Fl_Text_Display* input = (Fl_Text_Display*)widget;
-    Fl_Text_Selection* sel = (Fl_Text_Selection*)input->buffer()->highlight_selection();
-    int pos = input->insert_position();
-    sel->set(pos - Fl::compose_state, pos);
-    }
-}
-
 - (void)unmarkText {
   fl_lock_function();
-  Fl::compose_state = 0;
-  [self FLselectMarkedText];
+  Fl_X::compose_state(0);
   fl_unlock_function();
   //NSLog(@"unmarkText");
 }
@@ -2052,6 +2033,24 @@ static void  q_set_window_title(NSWindow *nsw, const char * name, const char *mi
 
 @end
 
+void Fl_X::compose_state(int new_val)
+{ // highlight marked text in text widgets
+  if (Fl::compose_state == 0 && new_val == 0) return;
+  Fl::compose_state = new_val;
+  Fl_Widget *widget = Fl::focus();
+  if (!widget) return;
+  if (dynamic_cast<Fl_Input_*>(widget) != NULL) {
+    if (dynamic_cast<Fl_Secret_Input*>(widget) != NULL) return;
+    Fl_Input_* input = (Fl_Input_*)widget;
+    input->mark( input->position() - Fl::compose_state );
+  }
+  else if (dynamic_cast<Fl_Text_Display*>(widget) != NULL) {
+    Fl_Text_Display* input = (Fl_Text_Display*)widget;
+    int pos = input->insert_position();
+    input->buffer()->highlight(pos - Fl::compose_state, pos);
+  }
+}
+
 void Fl_Window::fullscreen_x() {
   _set_fullscreen();
   /* On OS X < 10.6, it is necessary to recreate the window. This is done

src/Fl_compose.cxx

@@ -84,10 +84,14 @@ int Fl::compose(int& del) {
  */
 void Fl::compose_reset()
 {
+#ifdef __APPLE__
+  Fl_X::compose_state(0);
+#else
   Fl::compose_state = 0;
-#if !defined(WIN32) && !defined(__APPLE__)
+#if !defined(WIN32)
   if (fl_xim_ic) XmbResetIC(fl_xim_ic);
 #endif
+#endif
 }
 
 //