Adding active/disabled status on windows so it's easier to show/hide

them while keeping the order.


git-svn-id: svn://rakshasa.no/libtorrent/trunk/rtorrent@284 e378c898-3ddf-0310-93e7-cc216c733640

src/display/manager.cc

@@ -26,13 +26,17 @@ Manager::adjust_layout() {
   int countDynamic = 0;
   int staticHeight = 0;
 
-  std::for_each(begin(), end(), func::accumulate(staticHeight, std::mem_fun(&Window::get_min_height)));
-  std::for_each(begin(), end(), func::accumulate(countDynamic, std::mem_fun(&Window::is_dynamic)));
+  std::for_each(begin(), end(), func::if_then(std::mem_fun(&Window::is_active), func::accumulate(staticHeight, std::mem_fun(&Window::get_min_height))));
+  std::for_each(begin(), end(), func::if_then(std::mem_fun(&Window::is_active), func::accumulate(countDynamic, std::mem_fun(&Window::is_dynamic))));
 
   int dynamic = std::max(0, Canvas::get_screen_height() - staticHeight);
   int height = 0, h;
 
   for (iterator itr = begin(); itr != end(); ++itr, height += h) {
+    h = 0;
+
+    if (!(*itr)->is_active())
+      continue;
 
     if ((*itr)->is_dynamic()) {
       dynamic -= h = (dynamic + countDynamic - 1) / countDynamic;
@@ -52,8 +56,8 @@ void
 Manager::do_update() {
   Canvas::refresh_std();
 
-  std::for_each(begin(), end(), std::mem_fun(&Window::redraw));
-  std::for_each(begin(), end(), std::mem_fun(&Window::refresh));
+  std::for_each(begin(), end(), func::if_then(std::mem_fun(&Window::is_active), std::mem_fun(&Window::redraw)));
+  std::for_each(begin(), end(), func::if_then(std::mem_fun(&Window::is_active), std::mem_fun(&Window::refresh)));
 
   Canvas::do_update();
 }

src/display/window.h

@@ -10,19 +10,23 @@ class Canvas;
 class Window {
 public:
   Window(Canvas* c = NULL, bool d = false, int h = 1) :
-    m_canvas(c), m_dynamic(d), m_minHeight(h) {}
+    m_canvas(c), m_active(true), m_dynamic(d), m_minHeight(h) {}
 
   virtual ~Window();
 
-  bool         is_dynamic()     { return m_dynamic; }
-  bool         is_dirty()       { return m_lastDraw == 0; }
+  bool         is_active()        { return m_active; }
+  bool         is_dynamic()       { return m_dynamic; }
+  bool         is_dirty()         { return m_lastDraw == 0; }
 
-  int          get_min_height() { return m_minHeight; }
+  int          get_min_height()   { return m_minHeight; }
+
+  bool         get_active()       { return m_active; }
+  void         set_active(bool a) { m_active = a; }
 
   void         refresh();
   void         resize(int x, int y, int w, int h);
 
-  void         mark_dirty()     { m_lastDraw = 0; }
+  void         mark_dirty()       { m_lastDraw = 0; }
 
   virtual void redraw() = 0;
 
@@ -32,6 +36,7 @@ protected:
 
   Canvas*      m_canvas;
 
+  bool         m_active;
   bool         m_dynamic;
   int          m_minHeight;
 

src/functional.h

@@ -54,7 +54,6 @@ equal(Type t, Ftor f) {
 
 template <typename Dest, typename Src>
 struct _on : public std::unary_function<typename Src::argument_type, typename Dest::result_type>  {
-
   _on(Dest d, Src s) : m_dest(d), m_src(s) {}
 
   typename Dest::result_type operator () (typename Src::argument_type arg) {
@@ -71,6 +70,26 @@ on(Dest d, Src s) {
   return _on<Dest, Src>(d, s);
 }  
 
+template <typename Cond, typename Then>
+struct _if_then {
+  _if_then(Cond c, Then t) : m_cond(c), m_then(t) {}
+
+  template <typename Arg>
+  void operator () (Arg& a) {
+    if (m_cond(a))
+      m_then(a);
+  }
+
+  Cond m_cond;
+  Then m_then;
+};
+
+template <typename Cond, typename Then>
+inline _if_then<Cond, Then>
+if_then(Cond c, Then t) {
+  return _if_then<Cond, Then>(c, t);
+}
+
 struct _call_delete
   : public std::unary_function<void, void> {
   

src/ui/download_list.cc

@@ -45,8 +45,11 @@ DownloadList::~DownloadList() {
 
 void
 DownloadList::activate() {
+  m_textInput->set_active(false);
+
   m_control->get_input().push_front(m_bindings);
 
+  m_control->get_display().push_back(m_textInput);
   m_control->get_display().push_back(m_status);
   m_control->get_display().push_front(m_window);
   m_control->get_display().push_front(m_title);
@@ -54,7 +57,7 @@ DownloadList::activate() {
 
 void
 DownloadList::disable() {
-  if (m_textInput->get_focus()) {
+  if (m_textInput->is_active()) {
     m_textInput->get_input()->clear();
     receive_exit_input();
   }
@@ -64,6 +67,7 @@ DownloadList::disable() {
   m_control->get_display().erase(m_title);
   m_control->get_display().erase(m_window);
   m_control->get_display().erase(m_status);
+  m_control->get_display().erase(m_textInput);
 }
 
 void
@@ -144,8 +148,8 @@ DownloadList::receive_exit_download() {
 
 void
 DownloadList::receive_view_input() {
-  m_control->get_display().erase(m_status);
-  m_control->get_display().push_back(m_textInput);
+  m_status->set_active(false);
+  m_textInput->set_active(true);
   m_control->get_display().adjust_layout();
 
   m_control->get_input().set_text_input(m_textInput->get_input());
@@ -158,8 +162,8 @@ DownloadList::receive_view_input() {
 
 void
 DownloadList::receive_exit_input() {
-  m_control->get_display().erase(m_textInput);
-  m_control->get_display().push_back(m_status);
+  m_status->set_active(true);
+  m_textInput->set_active(false);
   m_control->get_display().adjust_layout();
 
   m_control->get_input().set_text_input();