create ScrolledToolbar class from Picker

1 files changed, 62 insertions, 0 deletions

diff --git a/common/Util/ScrolledToolbar.py b/common/Util/ScrolledToolbar.py
new file mode 100644
index 0000000..9beaaec
--- /dev/null
+++ b/common/Util/ScrolledToolbar.py
@@ -0,0 +1,62 @@
+#import pygtk
+import gtk
+#import os
+#import sets
+
+class ScrolledToolbar(gtk.HBox):
+    def __init__(self):
+        gtk.HBox.__init__( self )
+
+        scrollLeftImg = gtk.Image()
+        scrollLeftImg.set_from_icon_name('go-left', gtk.ICON_SIZE_BUTTON)
+        self._scrollLeft = gtk.Button( label = None )
+        self._scrollLeft.set_relief(gtk.RELIEF_NONE)
+        self._scrollLeft.set_image(scrollLeftImg)
+        self._scrollLeft.connect( "clicked", self.doScroll, "left" )
+        self.pack_start( self._scrollLeft, False, False )
+
+        self._scrolledWindow = gtk.ScrolledWindow()
+        self._scrolledWindow.set_policy( gtk.POLICY_ALWAYS, gtk.POLICY_NEVER )
+        self.pack_start( self._scrolledWindow )
+        self._hadjustment = self._scrolledWindow.get_hadjustment()
+        self._hadjustment.connect( "changed", self.scrollChanged )
+        self._hadjustment.connect( "value-changed", self.scrollChanged )
+
+        scrollRightImg = gtk.Image()
+        scrollRightImg.set_from_icon_name('go-right', gtk.ICON_SIZE_BUTTON)
+        self._scrollRight = gtk.Button( label = None )
+        self._scrollRight.set_relief(gtk.RELIEF_NONE)
+        self._scrollRight.set_image(scrollRightImg)
+        self._scrollRight.connect( "clicked", self.doScroll, "right" )
+        self.pack_start( self._scrollRight, False, False )
+
+    def set_viewport(self, widget):
+        self._scrolledWindow.add_with_viewport(widget)
+
+    def get_adjustment(self):
+        return self._hadjustment
+
+    def doScroll( self, widget, data ):
+        if data == "left":
+            val = max( self._hadjustment.get_property("lower"), self._hadjustment.get_value() - self._hadjustment.get_property("page_increment") )
+        else:
+            val = min( self._hadjustment.get_property("upper") - self._hadjustment.get_property("page_size"), self._hadjustment.get_value() + self._hadjustment.get_property("page_increment") )
+
+        self._hadjustment.set_value( val )
+
+    def scrollChanged( self, widget ):
+        val = self._hadjustment.get_value()
+        if val == 0:
+            self._scrollLeft.set_sensitive( False )
+        else:
+            self._scrollLeft.set_sensitive( True )
+
+        if val >= self._hadjustment.get_property( "upper" ) - self._hadjustment.get_property("page_size"):
+            self._scrollRight.set_sensitive( False )
+        else:
+            self._scrollRight.set_sensitive( True )
+
+    def get_viewport_allocation(self):
+        alloc = self._scrolledWindow.get_allocation()
+        alloc.x -= self._hadjustment.get_value()
+        return alloc