Activation de la roulette de la souris sur l'ensemble de l'écran.

git-svn-id: https://svn.cri.ensmp.fr/svn/minwii/trunk@382 fe552daf-6dbe-4428-90eb-1537e0879342

diff --git a/src/minwii/widgets/songfilebrowser.py b/src/minwii/widgets/songfilebrowser.py
index da2bdec..fcb1c21 100755 (executable)
--- a/src/minwii/widgets/songfilebrowser.py
+++ b/src/minwii/widgets/songfilebrowser.py
@@ -17,6 +17,8 @@ import pgu.gui.table as table
 import pgu.gui.area as area
 from pgu.gui.const import *
 from pgu.gui.dialog import Dialog
+from pgu.gui.app import Desktop
+import types
 
 import os
 import tempfile
@@ -26,6 +28,27 @@ from minwii.musicxml import musicXml2Song
 INDEX_TXT = 'index.txt'
 PICTURE_ITEM_SIZE = 64
 
+def appEventFactory(app, dlg) :
+    # monkey patch de la méthode gestionnaire d'événements :
+    # l'ensemble du Desktop écoute les événements de la roulette de la souris
+    # et les redirige sur la liste déroulante.
+    def _appEvent(self, e) :
+        
+        if dlg.list.vscrollbar:
+            if not hasattr(dlg.list.vscrollbar,'value'): 
+                return False
+
+            if e.type == pygame.locals.MOUSEBUTTONDOWN:
+                if e.button == 4: #wheel up
+                    dlg.list.vscrollbar._click(-1)
+                    return True
+                elif e.button == 5: #wheel down
+                    dlg.list.vscrollbar._click(1)
+                    return True
+        return Desktop.event(self, e)
+
+    return types.MethodType(_appEvent, app)
+
 class FileOpenDialog(FileDialog):
     
     
@@ -72,6 +95,17 @@ class FileOpenDialog(FileDialog):
         self.value = None
         Dialog.__init__(self, self.title, self.body)
         
+        # monkey patch
+        app = pguglobals.app
+        self.__regularEventMethod = app.event
+        app.event = appEventFactory(app, self)
+    
+    def close(self, w=None) :
+        FileDialog.close(self, w)
+        # retrait du monkey patch
+        app = pguglobals.app
+        app.event = self.__regularEventMethod
+        
             
     def _list_dir_(self):
         self.input_dir.value = self.curdir