Added an std::ostream, mpr_stream, to the message.h interface.

The usage is along the lines of:
mpr_stream << setchan(MSGCH_PROMPT) << "this will be output to prompt"
           << i << "/" << j << std::endl;
This is very hacky at the moment, but at least it's much more type-safe
than mprf()...


git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1389 c06c8d41-db1a-0410-9941-cceddc491573

1 files changed, 31 insertions, 0 deletions

diff --git a/crawl-ref/source/message.h b/crawl-ref/source/message.h
index 3fcf7d881e..96a2094f40 100644
--- a/crawl-ref/source/message.h
+++ b/crawl-ref/source/message.h
@@ -15,6 +15,7 @@
 #define MESSAGE_H
 
 #include <string>
+#include <streambuf>
 
 #include "externs.h"
 
@@ -105,4 +106,34 @@ std::string get_last_messages(int mcount);
 
 int channel_to_colour( int channel, int param = 0 );
 
+struct setchan
+{
+    setchan(msg_channel_type chan);
+    msg_channel_type m_chan;
+};
+
+struct setparam
+{
+    setparam(int param);
+    int m_param;
+};
+
+std::ostream& operator<<(std::ostream& os, const setchan& sc);
+std::ostream& operator<<(std::ostream& os, const setparam& sp);
+
+class mpr_stream_buf : public std::streambuf
+{
+public:
+    mpr_stream_buf();
+protected:
+    int overflow(int c);
+private:
+    static const int INTERNAL_LENGTH = 500;
+    char internal_buf[500]; // if your terminal is wider than this, too bad
+    int internal_count;
+};
+
+extern std::ostream mpr_stream;
+
+
 #endif