Initial revision

Lib/lib-stdwin/HVSplit.py

@@ -0,0 +1,52 @@
+# HVSplit contains generic code for HSplit and VSplit.
+# HSplit and VSplit are specializations to either dimension.
+
+from Split import Split
+
+class HVSplit() = Split():
+	#
+	def create(self, (parent, hv)):
+		# hv is 0 or 1 for HSplit or VSplit
+		self = Split.create(self, parent)
+		self.hv = hv
+		return self
+	#
+	def minsize(self, m):
+		hv, vh = self.hv, 1 - self.hv
+		size = [0, 0]
+		for c in self.children:
+			csize = c.minsize(m)
+			if csize[vh] > size[vh]: size[vh] = csize[vh]
+			size[hv] = size[hv] + csize[hv]
+		return size[0], size[1]
+	#
+	def getbounds(self):
+		return self.bounds
+	#
+	def setbounds(self, bounds):
+		self.bounds = bounds
+		hv, vh = self.hv, 1 - self.hv
+		mf = self.parent.beginmeasuring
+		size = self.minsize(mf())
+		# XXX not yet used!  Later for stretching
+		maxsize_hv = bounds[1][hv] - bounds[0][hv]
+		origin = [self.bounds[0][0], self.bounds[0][1]]
+		for c in self.children:
+			size = c.minsize(mf())
+			corner = [0, 0]
+			corner[vh] = bounds[1][vh]
+			corner[hv] = origin[hv] + size[hv]
+			c.setbounds((origin[0], origin[1]), \
+					(corner[0], corner[1]))
+			origin[hv] = corner[hv]
+			# XXX stretch
+			# XXX too-small
+	#
+
+class HSplit() = HVSplit():
+	def create(self, parent):
+		return HVSplit.create(self, (parent, 0))
+
+class VSplit() = HVSplit():
+	def create(self, parent):
+		return HVSplit.create(self, (parent, 1))