summaryrefslogtreecommitdiffstats
path: root/Lib/lib-stdwin/StripChart.py
diff options
context:
space:
mode:
authorGuido van Rossum <guido@python.org>1990-10-31 11:24:22 (GMT)
committerGuido van Rossum <guido@python.org>1990-10-31 11:24:22 (GMT)
commit36ddc9e31884d0143d9b23b7f72ddf4f3d45145f (patch)
tree97a5050b9050dbf0579a3bf8762f1032249a6616 /Lib/lib-stdwin/StripChart.py
parent6acc1b539aa007ad6896783031f473c2ebe11bc2 (diff)
downloadcpython-36ddc9e31884d0143d9b23b7f72ddf4f3d45145f.zip
cpython-36ddc9e31884d0143d9b23b7f72ddf4f3d45145f.tar.gz
cpython-36ddc9e31884d0143d9b23b7f72ddf4f3d45145f.tar.bz2
Initial revision
Diffstat (limited to 'Lib/lib-stdwin/StripChart.py')
-rw-r--r--Lib/lib-stdwin/StripChart.py67
1 files changed, 67 insertions, 0 deletions
diff --git a/Lib/lib-stdwin/StripChart.py b/Lib/lib-stdwin/StripChart.py
new file mode 100644
index 0000000..2021cc4
--- /dev/null
+++ b/Lib/lib-stdwin/StripChart.py
@@ -0,0 +1,67 @@
+# Module 'StripChart'
+
+
+import rect
+from Buttons import *
+from Resize import *
+
+
+class StripChart() = LabelAppearance(), NoReactivity(), NoResize():
+ #
+ def define(self, (win, bounds, scale)):
+ self.init_appearance(win, bounds)
+ self.init_reactivity()
+ self.init_resize()
+ self.ydata = []
+ self.scale = scale
+ self.resetbounds()
+ return self
+ #
+ def setbounds(self, bounds):
+ LabelAppearance.setbounds(self, bounds)
+ self.resetbounds()
+ #
+ def resetbounds(self):
+ (left, top), (right, bottom) = self.bounds
+ self.width = right-left
+ self.height = bottom-top
+ excess = len(self.ydata) - self.width
+ if excess > 0:
+ del self.ydata[:excess]
+ elif excess < 0:
+ while len(self.ydata) < self.width:
+ self.ydata.insert(0, 0)
+ #
+ def append(self, y):
+ self.ydata.append(y)
+ excess = len(self.ydata) - self.width
+ if excess > 0:
+ del self.ydata[:excess]
+ if not self.limbo:
+ self.win.scroll(self.bounds, (-excess, 0))
+ if not self.limbo:
+ (left, top), (right, bottom) = self.bounds
+ i = len(self.ydata)
+ area = (left+i-1, top), (left+i, bottom)
+ self.draw(self.win.begindrawing(), area)
+ #
+ def draw(self, (d, area)):
+ self.limbo = 0
+ area = rect.intersect(area, self.bounds)
+ if area = rect.empty:
+ return
+ d.cliprect(area)
+ d.erase(self.bounds)
+ (a_left, a_top), (a_right, a_bottom) = area
+ (left, top), (right, bottom) = self.bounds
+ height = bottom - top
+ i1 = a_left - left
+ i2 = a_right - left
+ for i in range(max(0, i1), min(len(self.ydata), i2)):
+ split = bottom-self.ydata[i]*height/self.scale
+ d.paint((left+i, split), (left+i+1, bottom))
+ if not self.enabled:
+ self.flipenable(d)
+ if self.hilited:
+ self.fliphilite(d)
+ d.noclip()