Bizarrerie Windows : il n'arrive pas à virer un fichier immédiatement après lui avoir...

[minwii.git] / src / minwii / logfilereader.py

diff --git a/src/minwii/logfilereader.py b/src/minwii/logfilereader.py
index a08855a..828b085 100755 (executable)
--- a/src/minwii/logfilereader.py
+++ b/src/minwii/logfilereader.py
@@ -6,20 +6,23 @@ $Id$
 $URL$
 """
 
 $URL$
 """
 

+from types import StringTypes

 from widgets.playingscreen import PlayingScreenBase
 from eventutils import EventDispatcher
 from events import eventCodes
 from synth import Synth
 from musicxml import musicXml2Song
 import pygame
 from widgets.playingscreen import PlayingScreenBase
 from eventutils import EventDispatcher
 from events import eventCodes
 from synth import Synth
 from musicxml import musicXml2Song
 import pygame

+from backwardsfilereader import BackwardsReader

 
 SUPPORTED_FILE_HEADER = 'ENV winwii log format version : 1.0'
 
 def inplaceread(m) :
     def readinplace(self, *args, **kw) :
 
 SUPPORTED_FILE_HEADER = 'ENV winwii log format version : 1.0'
 
 def inplaceread(m) :
     def readinplace(self, *args, **kw) :

-        self.savePos()
+        pos = self.logfile.tell()
+        self.logfile.seek(0)

         ret = m(self, *args, **kw)
         ret = m(self, *args, **kw)

-        self.recallPos()
+        self.logfile.seek(pos)

         return ret
     return readinplace
 
         return ret
     return readinplace
 


@@ -32,23 +35,15 @@ class LogFileReader(object) :
         """ logfile : chemin d'accès au fichier de log MinWii.
             le format supporté est actuellement la version 1.0 uniquement.
         """
         """ logfile : chemin d'accès au fichier de log MinWii.
             le format supporté est actuellement la version 1.0 uniquement.
         """

-        if isinstance(logfile, str) :
+        if isinstance(logfile, StringTypes) :

             self.logfile = open(logfile, 'r')
         else :
             self.logfile = logfile
         
             self.logfile = open(logfile, 'r')
         else :
             self.logfile = logfile
         

-        self.__pos = 0
-        

         firstline = self.next()
         assert firstline == SUPPORTED_FILE_HEADER
     
         firstline = self.next()
         assert firstline == SUPPORTED_FILE_HEADER
     

-    def savePos(self) :
-        self.__pos = self.logfile.tell()
-        self.logfile.seek(0)
-    
-    def recallPos(self) :
-        self.logfile.seek(self.__pos)
-    
+        

     @inplaceread
     def getSongFile(self) :
         "retourne le chemin d'accès au fichier musicxml de la chanson"
     @inplaceread
     def getSongFile(self) :
         "retourne le chemin d'accès au fichier musicxml de la chanson"


@@ -113,6 +108,18 @@ class LogFileReader(object) :
         firstTicks = int(l.split(None, 2)[1])
         return firstTicks
     
         firstTicks = int(l.split(None, 2)[1])
         return firstTicks
     

+    @inplaceread
+    def getLastEventTicks(self) :
+        "retourne le timecode du dernier événement (entier)"
+        for l in self.getBackwardLineIterator() :
+            if l.startswith('EVT ') :
+                break
+        else :
+            return None
+        
+        lastTicks = int(l.split(None, 2)[1])
+        return lastTicks
+    

     def __del__(self) :
         self.logfile.close()
     
     def __del__(self) :
         self.logfile.close()
     


@@ -146,6 +153,14 @@ class LogFileReader(object) :
                 ticks, eventName = l.split(None, 3)[1:]
                 ticks = int(ticks)
                 yield ticks, eventName, ''
                 ticks, eventName = l.split(None, 3)[1:]
                 ticks = int(ticks)
                 yield ticks, eventName, ''

+    
+    def getBackwardLineIterator(self) :
+        br = BackwardsReader(self.logfile, BLKSIZE=128)
+        line = br.readline()
+        while line :
+            yield line.strip()
+            line = br.readline()
+        

                 
 
 class LogFilePlayer(PlayingScreenBase) :
                 
 
 class LogFilePlayer(PlayingScreenBase) :