From 237d3c4c4b9d4ae1ee48ab812b83009761811604 Mon Sep 17 00:00:00 2001
From: Jens Arnold <amiconn@rockbox.org>
Date: Sun, 19 Feb 2006 13:34:12 +0000
Subject: Adaptive button repeat: adapts repeat rate depending on the ability
 of the application to cope. Avoids afterscroll and similar effects. * Yield
 while scrolling through lists.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8738 a1c6a512-1295-4272-9138-f99709370657
---
 uisimulator/sdl/button.c     | 16 +++++++++++++---
 uisimulator/win32/button.c   | 16 +++++++++++++---
 uisimulator/x11/button-x11.c | 13 +++++++++++--
 3 files changed, 37 insertions(+), 8 deletions(-)

(limited to 'uisimulator')

diff --git a/uisimulator/sdl/button.c b/uisimulator/sdl/button.c
index 671cf12d5c..72224315a2 100644
--- a/uisimulator/sdl/button.c
+++ b/uisimulator/sdl/button.c
@@ -39,7 +39,6 @@ static int btn = 0;    /* Hopefully keeps track of currently pressed keys... */
 
 void button_event(int key, bool pressed)
 {
-    bool post = false;
     int new_btn = 0;
     int diff = 0;
     static int count = 0;
@@ -47,6 +46,7 @@ void button_event(int key, bool pressed)
     static int repeat_speed = REPEAT_INTERVAL_START;
     static int repeat_count = 0;
     static bool repeat = false;
+    static bool post = false;
 
     switch (key)
     {
@@ -175,7 +175,8 @@ void button_event(int key, bool pressed)
             {
                 if ( repeat )
                 {
-                    count--;
+                    if (!post)
+                        count--;
                     if (count == 0)
                     {
                         post = true;
@@ -203,9 +204,18 @@ void button_event(int key, bool pressed)
             if ( post )
             {
                 if(repeat)
-                    queue_post(&button_queue, BUTTON_REPEAT | btn, NULL);
+                {
+                    if (queue_empty(&button_queue))
+                    {
+                        queue_post(&button_queue, BUTTON_REPEAT | btn, NULL);
+                        post = false;
+                    }
+                }
                 else
+                {
                     queue_post(&button_queue, btn, NULL);
+                    post = false;
+                }    
 
 #ifdef HAVE_REMOTE_LCD
                 if(btn & BUTTON_REMOTE)
diff --git a/uisimulator/win32/button.c b/uisimulator/win32/button.c
index 7996af583d..8f21fe4396 100644
--- a/uisimulator/win32/button.c
+++ b/uisimulator/win32/button.c
@@ -40,7 +40,6 @@ static int btn = 0;    /* Hopefully keeps track of currently pressed keys... */
 
 void button_event(int key, bool pressed)
 {
-    bool post = false;
     int new_btn = 0;
     int diff = 0;
     static int count = 0;
@@ -48,6 +47,7 @@ void button_event(int key, bool pressed)
     static int repeat_speed = REPEAT_INTERVAL_START;
     static int repeat_count = 0;
     static bool repeat = false;
+    static bool post = false;
 
     switch (key)
     {
@@ -176,7 +176,8 @@ void button_event(int key, bool pressed)
             {
                 if ( repeat )
                 {
-                    count--;
+                    if (!post)
+                        count--;
                     if (count == 0)
                     {
                         post = true;
@@ -204,9 +205,18 @@ void button_event(int key, bool pressed)
             if ( post )
             {
                 if(repeat)
-                    queue_post(&button_queue, BUTTON_REPEAT | btn, NULL);
+                {
+                    if (queue_empty(&button_queue))
+                    {
+                        queue_post(&button_queue, BUTTON_REPEAT | btn, NULL);
+                        post = false;
+                    }
+                }
                 else
+                {
                     queue_post(&button_queue, btn, NULL);
+                    post = false;
+                }
 
 #ifdef HAVE_REMOTE_LCD
                 if(btn & BUTTON_REMOTE)
diff --git a/uisimulator/x11/button-x11.c b/uisimulator/x11/button-x11.c
index 08b09cf8cb..673f71ea7b 100644
--- a/uisimulator/x11/button-x11.c
+++ b/uisimulator/x11/button-x11.c
@@ -55,13 +55,13 @@ static void button_tick(void)
     static int repeat_speed = REPEAT_INTERVAL_START;
     static int repeat_count = 0;
     static bool repeat = false;
+    static bool post = false;
     int diff;
     int btn;
 
     /* only poll every X ticks */
     if ( ++tick >= POLL_FREQUENCY )
     {
-        bool post = false;
         button_read();
         btn = button_state;
 
@@ -115,9 +115,18 @@ static void button_tick(void)
                 if ( post )
                 {
                     if (repeat)
-                        queue_post(&button_queue, BUTTON_REPEAT | btn, NULL);
+                    {
+                        if (queue_empty(&button_queue))
+                        {
+                            queue_post(&button_queue, BUTTON_REPEAT | btn, NULL);
+                            post = false;
+                        }
+                    }
                     else
+                    {
                         queue_post(&button_queue, btn, NULL);
+                        post = false;
+                    }
 #ifdef HAVE_REMOTE_LCD
                     if(btn & BUTTON_REMOTE)
                         remote_backlight_on();
-- 
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