New trunk

bzr revid: pinky-3f10ee12cea3c4c75cef44ab04ad33ef47432907

1 files changed, 144 insertions, 0 deletions

diff --git a/bin/pychart/range_plot.py b/bin/pychart/range_plot.py
new file mode 100644
index 00000000000..1fe64338244
--- /dev/null
+++ b/bin/pychart/range_plot.py
@@ -0,0 +1,144 @@
+#
+# Copyright (C) 2000-2005 by Yasushi Saito (yasushi.saito@gmail.com)
+# 
+# Jockey is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation; either version 2, or (at your option) any
+# later version.
+#
+# Jockey is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# for more details.
+#
+import line_style
+import pychart_util
+import chart_object
+import fill_style
+import legend
+import range_plot_doc
+from pychart_types import *
+from types import *
+from scaling import *
+
+
+class T(chart_object.T):
+    __doc__ = range_plot_doc.doc
+    keys = {
+        "data" : (AnyType, None, pychart_util.data_desc),
+        "label": (StringType, "???", pychart_util.label_desc),
+        "xcol" : (IntType, 0, pychart_util.xcol_desc),
+        "min_col": (IntType, 1,
+                   "The lower bound of the sweep is extracted from "
+                   + "this column of data."),
+        "max_col": (IntType, 2, 
+                   "The upper bound of the sweep is extracted from "
+                   + "this column of data."),
+        "line_style": (line_style.T, line_style.default,
+                      "The style of the boundary line."),
+        "fill_style": (fill_style.T, fill_style.default,
+                      ""),
+        }
+    
+##AUTOMATICALLY GENERATED
+
+##END AUTOMATICALLY GENERATED
+
+    def check_integrity(self):
+	self.type_check()
+    def get_data_range(self, which):
+        if which == 'X':
+            return pychart_util.get_data_range(self.data, self.xcol)
+        else:
+            ymax = (pychart_util.get_data_range(self.data, self.max_col))[1]
+            ymin = (pychart_util.get_data_range(self.data, self.min_col))[0]
+            return (ymin, ymax)
+    def get_legend_entry(self):
+        if self.label:
+            return legend.Entry(line_style=self.line_style,
+                                fill_style=self.fill_style,
+                                label=self.label)
+        return None
+
+    def draw(self, ar, can):
+        
+        prevPair = None
+
+        xmin=999999
+        xmax=-999999
+        ymin=999999
+        ymax=-999999
+
+        # Draw the boundary in a single stroke.
+        can.gsave()
+        can.newpath()
+        for pair in self.data:
+            x = pair[self.xcol]
+            y = pychart_util.get_sample_val(pair, self.max_col)
+            if y == None:
+                continue
+            
+            xmin = min(xmin, ar.x_pos(x))
+            xmax = max(xmax, ar.x_pos(x))
+            ymin = min(ymin, ar.y_pos(y))
+            ymax = max(ymax, ar.y_pos(y))
+            if prevPair != None:
+                can.lineto(xscale(ar.x_pos(x)), yscale(ar.y_pos(y)))
+            else:
+                can.moveto(xscale(ar.x_pos(x)), yscale(ar.y_pos(y)))
+            prevPair = pair
+
+        for i in range(len(self.data)-1, -1, -1):
+            pair = self.data[i]
+            x = pair[self.xcol]
+            y = pychart_util.get_sample_val(pair, self.min_col)
+            if None in (x, y):
+                continue
+
+            xmin = min(xmin, ar.x_pos(x))
+            xmax = max(xmax, ar.x_pos(x))
+            ymin = min(ymin, ar.y_pos(y))
+            ymax = max(ymax, ar.y_pos(y))
+            can.lineto(xscale(ar.x_pos(x)), yscale(ar.y_pos(y)))
+        can.closepath()
+
+        # create a clip region, and fill it.
+        can.clip_sub()
+        can.fill_with_pattern(self.fill_style, xmin, ymin, xmax, ymax)
+        can.grestore()
+
+        if self.line_style: 
+            # draw the boundary.
+            prevPair = None
+            can.newpath()
+            can.set_line_style(self.line_style)
+            for pair in self.data:
+                x = pair[self.xcol]
+                y = pychart_util.get_sample_val(pair, self.min_col)
+                if None in (x, y):
+                    continue
+
+                if prevPair != None:
+                    can.lineto(xscale(ar.x_pos(x)), yscale(ar.y_pos(y)))
+                else:
+                    can.moveto(xscale(ar.x_pos(x)), yscale(ar.y_pos(y)))
+                prevPair = pair
+            can.stroke()
+
+            prevPair = None
+            can.newpath()
+            can.set_line_style(self.line_style)
+            for pair in self.data:
+                x = pair[self.xcol]
+                y = pychart_util.get_sample_val(pair, self.max_col)
+                if y == None:
+                    continue
+
+                if prevPair != None:
+                    can.lineto(xscale(ar.x_pos(x)), yscale(ar.y_pos(y)))
+                else:
+                    can.moveto(xscale(ar.x_pos(x)), yscale(ar.y_pos(y)))
+                prevPair = pair
+            can.stroke()
+
+