Changed several places to use button_clear_queue() to empty the button queue. Added the ability to empty the (system's) button queue to the X11 simulatr.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5665 a1c6a512-1295-4272-9138-f99709370657

apps/main.c

@@ -149,8 +149,7 @@ void init(void)
               global_settings.mdb_enable,
               global_settings.superbass);
     mpeg_init();
-    while (button_get(false) != 0)
-      ; /* Empty the keyboard buffer */
+    button_clear_queue(); /* Empty the keyboard buffer */
 }
 
 #else

apps/plugins/calculator.c

@@ -397,7 +397,7 @@ void cal_initial (void)
     printResult();
 
     /* clear button queue */
-    while (rb->button_get(false));
+    rb->button_clear_queue();
 }
 
 /* -----------------------------------------------------------------------
@@ -1357,7 +1357,7 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
     } /* while (calStatus != cal_exit ) */
 
     /*  rb->splash(HZ*2, true, "Hello world!"); */
-    while (rb->button_get(false));
+    rb->button_clear_queue();
     return PLUGIN_OK;
 }
 

apps/plugins/euroconverter.c

@@ -437,7 +437,7 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
     load_config();
 
     /*Empty the event queue*/
-    while (rb->button_get(false)!=BUTTON_NONE) ;
+    rb->button_clear_queue();
 
     display(e,h,false);
     show_abbrev();

apps/plugins/jackpot.c

@@ -125,7 +125,7 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
     rb->lcd_puts_scroll(0,1,"PLAY to begin");
 
     /*Empty the event queue*/
-    while (rb->button_get(false)!=BUTTON_NONE);
+    rb->button_clear_queue();
 
     /* Define the start pattern */
     s[0]=(rb->rand()%9)*7;

apps/plugins/jpeg.c

@@ -1520,7 +1520,7 @@ int scroll_bmp(struct t_disp* pdisp)
     int lastbutton = 0;
 
     /*empty the button queue first, to avoid unwanted scrolling */
-    while(rb->button_get(false) != BUTTON_NONE);
+    rb->button_clear_queue();
 
     while (true)
     {

apps/plugins/nim.c

@@ -174,7 +174,7 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
         min=0;
 
         /*Empty the event queue*/
-        while (rb->button_get(false)!=BUTTON_NONE);
+        rb->button_clear_queue();
 
         /* Game loop */
         while(end!=true)

apps/plugins/viewer.c

@@ -356,7 +356,7 @@ static void fill_buffer(long pos, unsigned char* buf, unsigned size)
 
     rb->lseek(fd, pos, SEEK_SET);
     numread = rb->read(fd, buf, size);
-    while (rb->button_get(false)); /* clear button queue */
+    rb->button_clear_queue(); /* clear button queue */
 
     for(i = 0; i < numread; i++) {
         switch(buf[i]) {

apps/screens.c

@@ -901,7 +901,7 @@ void splash(int ticks,       /* how long the splash is displayed */
 void charging_splash(void)
 {
     splash(2*HZ, true, str(LANG_BATTERY_CHARGE));
-    while (button_get(false));
+    button_clear_queue();
 }
 
 

apps/tree.c

@@ -1127,7 +1127,7 @@ static bool dirbrowse(void)
             lastfilter = *tc.dirfilter;
             lastsortcase = global_settings.sort_case;
             restore = true;
-            while (button_get(false)); /* clear button queue */
+            button_clear_queue(); /* clear button queue */
         }
 
         if (exit_func)

uisimulator/x11/button-x11.c

@@ -235,4 +235,5 @@ int button_status(void)
 
 void button_clear_queue(void)
 {
+    while (get_raw_button());
 }