[vdr] [PATCH] vdr-1.3.18: sort channels by source

[Luca Olivetti <luca@ventoso.org>]

This patch adds three more sort order, like the original ones but 
grouped by source. Additionally the source is always visible, so you 
know in advance if the dish is going to move.

Bye
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--- menu.c.sortbysource	2005-01-09 16:42:26.532491562 +0100
+++ menu.c	2005-01-09 18:30:57.383295757 +0100
@@ -328,14 +328,14 @@
 
 class cMenuChannelItem : public cOsdItem {
 public:
-  enum eChannelSortMode { csmNumber, csmName, csmProvider };
+  enum eChannelSortMode { csmNumber, csmName, csmProvider, csmSourceNumber, csmSourceName, csmSourceProvider };
 private:
   static eChannelSortMode sortMode;
   cChannel *channel;
 public:
   cMenuChannelItem(cChannel *Channel);
   static void SetSortMode(eChannelSortMode SortMode) { sortMode = SortMode; }
-  static void IncSortMode(void) { sortMode = eChannelSortMode((sortMode == csmProvider) ? csmNumber : sortMode + 1); }
+  static void IncSortMode(void) { sortMode = eChannelSortMode((sortMode == csmSourceProvider) ? csmNumber : sortMode + 1); }
   virtual int Compare(const cListObject &ListObject) const;
   virtual void Set(void);
   cChannel *Channel(void) { return channel; }
@@ -352,10 +352,42 @@
   Set();
 }
 
+int snum(int source)
+{
+  int stype = (source & cSource::st_Mask);
+  // arbitrary order: sat, cable, terrestrial, none
+  int r;
+  switch(stype) {
+    case cSource::stCable: 
+      r=0x7FF0;
+      break;
+    case cSource::stTerr:
+      r=0x7FF2;
+      break;
+    case cSource::stSat: 
+      r=source & cSource::st_Pos;
+      if (source & cSource::st_Neg) r*=-1;
+      break;
+    default:  //stNone or unknown
+      r=0x7FFF;  
+  }
+  return r;    
+}
+
 int cMenuChannelItem::Compare(const cListObject &ListObject) const
 {
   cMenuChannelItem *p = (cMenuChannelItem *)&ListObject;
   int r = -1;
+  if (sortMode >= csmSourceNumber) {
+     int rsource = snum(channel->Source()) - snum(p->channel->Source());
+     if (sortMode == csmSourceProvider && rsource  == 0)
+        r = strcoll(channel->Provider(), p->channel->Provider());
+     if ((sortMode == csmSourceName || r == 0) && rsource == 0)
+        r = strcoll(channel->Name(), p->channel->Name());
+     if ((sortMode == csmSourceNumber || r == 0) && rsource == 0)
+        r = channel->Number() - p->channel->Number();
+     return ((rsource == 0) ? r : rsource);
+  }
   if (sortMode == csmProvider)
      r = strcoll(channel->Provider(), p->channel->Provider());
   if (sortMode == csmName || r == 0)
@@ -369,10 +401,10 @@
 {
   char *buffer = NULL;
   if (!channel->GroupSep()) {
-     if (sortMode == csmProvider)
-        asprintf(&buffer, "%d\t%s - %s", channel->Number(), channel->Provider(), channel->Name());
+     if (sortMode == csmProvider || sortMode == csmSourceProvider)
+        asprintf(&buffer, "%d\t%s %c %s - %s", channel->Number(), cSource::ToString(channel->Source()), (sortMode >= csmSourceNumber) ? '*' : '-', channel->Provider(), channel->Name());
      else
-        asprintf(&buffer, "%d\t%s", channel->Number(), channel->Name());
+        asprintf(&buffer, "%d\t%s %c %s", channel->Number(), cSource::ToString(channel->Source()), (sortMode >= csmSourceNumber) ? '*' : '-', channel->Name());
      }
   else
      asprintf(&buffer, "---\t%s ----------------------------------------------------------------", channel->Name());

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