First go at getting the touchpad working in the ui. lists only for now.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15264 a1c6a512-1295-4272-9138-f99709370657

apps/action.c

@@ -35,6 +35,10 @@ static intptr_t last_data = 0;
 static int last_action = ACTION_NONE;
 static bool repeated = false;
 
+#ifdef HAVE_TOUCHPAD
+static bool short_press = false;
+#endif
+
 #define REPEAT_WINDOW_TICKS HZ/10
 static int last_action_tick = 0;
 
@@ -132,7 +136,25 @@ static int get_action_worker(int context, int timeout,
         return ACTION_NONE; /* "safest" return value */
     }
     last_context = context;
-    
+#ifdef HAVE_TOUCHPAD
+    if (button&BUTTON_TOUCHPAD)
+    {
+        repeated = false;
+        short_press = false;
+        if (last_button&BUTTON_TOUCHPAD)
+        {
+            if ((button&BUTTON_REL) &&
+                ((last_button&BUTTON_REPEAT)==0))
+            {
+                short_press = true;
+            }
+            else if (button&BUTTON_REPEAT)
+                repeated = true;
+        }
+        last_button = button;
+        return ACTION_TOUCHPAD;
+    }
+#endif
 #ifndef HAS_BUTTON_HOLD
     screen_has_lock = ((context&ALLOW_SOFTLOCK)==ALLOW_SOFTLOCK);
     if (screen_has_lock && (keys_locked == true))
@@ -250,3 +272,35 @@ int get_action_statuscode(int *button)
         ret |= ACTION_REPEAT;
     return ret;
 }
+
+#ifdef HAVE_TOUCHPAD
+/* return BUTTON_NONE on error
+          BUTTON_REPEAT if repeated press
+          BUTTON_REL    if its a short press
+          BUTTON_TOUCHPAD   otherwise
+*/
+int action_get_touchpad_press(short *x, short *y)
+{
+    static int last_data = 0;
+    int data;
+    if ((last_button&BUTTON_TOUCHPAD) == 0)
+        return BUTTON_NONE;
+    data = button_get_data();
+    if (last_button&BUTTON_REL)
+    {
+        *x = (last_data&0xffff0000)>>16;
+        *y = (last_data&0xffff);
+    }
+    else
+    {
+        *x = (data&0xffff0000)>>16;
+        *y = (data&0xffff);
+    }
+    last_data = data;
+    if (repeated)
+        return BUTTON_REPEAT;
+    if (short_press)
+        return BUTTON_REL;
+    return BUTTON_NONE;
+}
+#endif

apps/action.h

@@ -78,6 +78,7 @@ enum {
     ACTION_NONE = BUTTON_NONE,
     ACTION_UNKNOWN,
     ACTION_REDRAW, /* returned if keys are locked and we splash()'ed */
+    ACTION_TOUCHPAD,
     
     /* standard actions, use these first */
     ACTION_STD_PREV, 
@@ -259,4 +260,13 @@ int get_action_statuscode(int *button);
    BUTTON_NONE or flagged with SYS_EVENT */
 intptr_t get_action_data(void);
 
+#ifdef HAVE_TOUCHPAD
+/* return BUTTON_NONE on error
+          BUTTON_REPEAT if repeated press
+          BUTTON_REL    if its a short press
+          BUTTON_TOUCHPAD   otherwise
+*/
+int action_get_touchpad_press(short *x, short *y);
+#endif
+
 #endif /* __ACTION_H__ */

apps/gui/list.c

@@ -911,6 +911,81 @@ void gui_synclist_speak_item(struct gui_synclist * lists)
 
 extern intptr_t get_action_data(void);
 
+#if  defined(HAVE_TOUCHPAD)
+unsigned gui_synclist_do_touchpad(struct gui_synclist * lists)
+{
+    struct gui_list *gui_list = &(lists->gui_list[SCREEN_MAIN]);
+    short x,y;
+    unsigned button = action_get_touchpad_press(&x, &y);
+    int line;
+    if (x<SCROLLBAR_WIDTH)
+    {
+        /* top left corner is hopefully GO_TO_ROOT */
+        if (y<STATUSBAR_HEIGHT)
+        {
+            if (button == BUTTON_REL)
+                return ACTION_STD_MENU;
+            else if (button == BUTTON_REPEAT)
+                return ACTION_STD_CONTEXT;
+            else
+                return ACTION_NONE;
+        }
+        /* scroll bar */
+        else
+        {
+            int new_selection, nb_lines;
+            int height, size;
+            nb_lines = gui_list->display->nb_lines - SHOW_LIST_TITLE;
+            if (nb_lines <  gui_list->nb_items)
+            {
+                height = nb_lines * gui_list->display->char_height;
+                size = height*nb_lines / gui_list->nb_items;
+                new_selection = (y*(gui_list->nb_items-nb_lines))/(height-size);
+                gui_synclist_select_item(lists, new_selection);
+                nb_lines /= 2;
+                if (new_selection - gui_list->start_item > nb_lines)
+                {
+                    new_selection = gui_list->start_item+nb_lines;
+                }
+                FOR_NB_SCREENS(line)
+                    lists->gui_list[line].selected_item = new_selection;
+                return ACTION_REDRAW;
+            }
+        }
+    }
+    else
+    {
+        if (button != BUTTON_REL && button != BUTTON_REPEAT)
+            return ACTION_NONE;
+        /* title or statusbar is cancel */
+        if (global_settings.statusbar)
+        {
+            if (y < STATUSBAR_HEIGHT && !SHOW_LIST_TITLE )
+                return ACTION_STD_CANCEL;
+            y -= STATUSBAR_HEIGHT;
+        }
+        /* title goes up one level */
+        if (SHOW_LIST_TITLE)
+        {
+            if (y < gui_list->display->char_height)
+                return ACTION_STD_CANCEL;
+            y -= gui_list->display->char_height;
+        }
+        /*  pressing an item will select it.
+            pressing the selected item will "enter" it */
+        line = y / gui_list->display->char_height;
+        if (line != gui_list->selected_item - gui_list->start_item)
+            gui_synclist_select_item(lists, gui_list->start_item+line);
+        
+        if (button == BUTTON_REPEAT)
+            return ACTION_STD_CONTEXT;
+        else
+            return ACTION_STD_OK;
+    }
+    return ACTION_NONE;
+}
+#endif
+
 bool gui_synclist_do_button(struct gui_synclist * lists,
                             unsigned *actionptr, enum list_wrap wrap)
 {
@@ -951,6 +1026,11 @@ bool gui_synclist_do_button(struct gui_synclist * lists,
     }
 #endif
     
+#if defined(HAVE_TOUCHPAD)
+    if (action == ACTION_TOUCHPAD)
+        action = *actionptr = gui_synclist_do_touchpad(lists);
+#endif
+
     switch (wrap)
     {
         case LIST_WRAP_ON:
@@ -971,6 +1051,10 @@ bool gui_synclist_do_button(struct gui_synclist * lists,
 
     switch (action)
     {
+        case ACTION_REDRAW:
+            gui_synclist_draw(lists);
+            return true;
+            
 #ifdef HAVE_VOLUME_IN_LIST
         case ACTION_LIST_VOLUP:
             global_settings.volume += 2;