From 271c6f29b5a4a9008cf9dd87cd4b9bf6ce35b09e Mon Sep 17 00:00:00 2001
From: Daniel Francis <francis@sugarlabs.org>
Date: Sat, 21 Jul 2012 22:55:09 +0000
Subject: Solving some showing bugs, creating class for beats

---
diff --git a/clef.py b/clef.py
index b54cf28..298705f 100644
--- a/clef.py
+++ b/clef.py
@@ -50,3 +50,4 @@ class Clef:
                               y0=ytop)
         context.transform(matrix)
         svg.render_cairo(context)
+        context.clip()
diff --git a/instruments/instrument.py b/instruments/instrument.py
index 3d3f3fc..e4653a1 100644
--- a/instruments/instrument.py
+++ b/instruments/instrument.py
@@ -60,6 +60,7 @@ class Instrument:
                               y0=y0)
         accolade_cr.transform(matrix)
         self.svg.render_cairo(accolade_cr)
+        accolade_cr.clip()
 
     def guess_height(self, linespace):
         return len(self.staves) * linespace * 9
diff --git a/instruments/piano.py b/instruments/piano.py
index 8bb975c..1be56fd 100644
--- a/instruments/piano.py
+++ b/instruments/piano.py
@@ -20,6 +20,7 @@
 
 from gettext import gettext as _
 
+from staff import Beat
 from staff import Staff
 from instrument import Instrument
 import clef
@@ -30,10 +31,14 @@ class Piano(Instrument):
 
     def __init__(self):
         Instrument.__init__(self)
-        top_staff = Staff()
-        top_staff.clef = clef.Clef()
-        bottom_staff = Staff()
-        bottom_staff.clef = clef.Clef()
-        bottom_staff.clef.clef_type = clef.CLEF_F
+        top_beat = Beat()
+        top_beat.clef = clef.Clef()
+        top_staff = Staff(top_beat)
+
+        bottom_beat = Beat()
+        bottom_beat.clef = clef.Clef()
+        bottom_beat.clef.clef_type = clef.CLEF_F
+        bottom_staff = Staff(bottom_beat)
+
         self.staves.append(top_staff)
         self.staves.append(bottom_staff)
diff --git a/staff.py b/staff.py
index 15ba0fc..0f210cc 100644
--- a/staff.py
+++ b/staff.py
@@ -18,6 +18,13 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 # MA 02110-1301, USA.
 
+import logging
+logger = logging.getLogger('staff')
+
+
+class Beat:
+    clef = None
+
 
 class Staff:
     y = 0
@@ -25,10 +32,11 @@ class Staff:
     rmarg = 0
     spacing = 0
     ymax = 0
-    clef = None
 
-    def __init__(self):
-        pass
+    def __init__(self, beat):
+        self.beats = []
+        self.beats.append(beat)
+        logger.debug(self.beats)
 
     def draw(self, window, width):
         context = window.cairo_create()
@@ -42,5 +50,14 @@ class Staff:
             line_y += self.spacing
         self.ymax = line_y + self.spacing * 2
         context.stroke()
-        self.clef.draw(window.cairo_create(), self.lmarg * 1.1, self.y,
-            self.spacing * 3, self.ymax - self.y - self.spacing)
+        context.clip()
+        self.draw_beats(window)
+
+    def draw_beats(self, window):
+        for beat in self.beats:
+            if beat.clef != None:
+                beat.clef.draw(window.cairo_create(),
+                               self.lmarg * 1.1,
+                               self.y,
+                               self.spacing * 3,
+                               self.ymax - self.y - self.spacing)
diff --git a/track.py b/track.py
index 0489145..d9f8514 100644
--- a/track.py
+++ b/track.py
@@ -61,6 +61,7 @@ class Track:
         context.move_to(width - rmarg, self.piano.ymin + self.linespacing * 2)
         context.line_to(width - rmarg, self.piano.ymax - self.linespacing * 3)
         context.stroke()
+        context.clip()
 
     def set_y(self, y):
         self._y = y
--
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