volker/graph_components Changeset

Changeset - 49f72f9d4cc9

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volker - 10 years ago 2015-06-22 16:15:05
volker.jaenisch@inqbus.de

Initial version

4 files changed with 203 insertions and 0 deletions:

src/graph/__init__.py

new file

src/graph/app.py

src/graph/components.py

118

src/graph/interfaces.py

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src/graph/__init__.py

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new file 100644

src/graph/app.py

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@@ new file 100644 @@
 from zope.interface import Interface
 from zope.interface import implements
 from graph.components import BaseComponent, Image
 from graph.interfaces import IAxis, IViewBox
 class IPlotImage(Interface):
     """
     Componante to plot a 2d graph of a given image
     """
 class PlotImage( BaseComponent):
     """
     Makes a 2D plot for an image
     """
     implements(IPlotImage)
     def __init__(self, parent, image):
         super(PlotImage, self).__init__(parent)
         self.image = image
         self.x_axis = IAxis(self)
         self.x_axis.orientation='bottom'
         self.x_axis.start=0
         self.x_axis.end=8
         self.y_axis = IAxis(self)
         self.y_axis.orientation='left'
         self.y_axis.start=-5
         self.y_axis.end=3
         self.vb = IViewBox(self)
         self.vb.addItem( self.x_axis )
         self.vb.addItem( self.y_axis )
         self.vb.addItem( self.image )
     def render(self):
         return self.vb.render()
 image = Image(None, None)
 plot =  PlotImage( None, image)
 print( plot.render())

src/graph/components.py

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@@ new file 100644 @@
 from zope.interface import implements, implementsOnly, Interface
 from zope.component import adapts, getGlobalSiteManager
 from graph.interfaces import ITickLabelAdapter
 from graph.interfaces import IAxis
 from graph.interfaces import IViewBox
 from graph.interfaces import IImage
 from graph.interfaces import IBaseAdapter
 gsm = getGlobalSiteManager()
 class BaseAdapter(object):
     """
     Base for all Adapters
     """
     implements(IBaseAdapter)
     def __init__(self, obj):
         """
         Gets an Object to be adapted
         """
         self.obj = obj
 class BaseComponent(object):
     """
     """
     def __init__(self, parent):
         self.parent = parent
 class TickLabelAdapter(BaseAdapter):
     """
     Generates Ticklabels for an axis
     """
     implementsOnly(ITickLabelAdapter)
     adapts(IAxis)
     def __init__(self, axis):
         """
         Gets an Object to be adapted
         """
         self.axis = axis
     def render(self):
         return map(str, range(self.axis.start, self.axis.end))
 gsm.registerAdapter(TickLabelAdapter)
 class Axis(BaseComponent):
     """
     Represents an axis
     """
     implements(IAxis)
     adapts(Interface)
     def __init__(self, parent, orientation=None, start=None, end=None):
         super(Axis, self).__init__(parent)
         self.orientation = orientation
         self.start = start
         self.end = end
     def get_tick_labels(self):
         return ITickLabelAdapter(self).render()
     def render(self):
         return 'axis: ' + self.orientation + ':' + ' '.join(self.get_tick_labels())
 gsm.registerAdapter(Axis)
 class ViewBox(BaseComponent):
     """
     Drawing area of a plot. THe drawing ares may have an unlimited number of axis
     """
     implements(IViewBox)
     adapts(Interface)
     def __init__(self, parent):
         super(ViewBox, self).__init__(parent)
         self.items = []
     def addItem(self, item):
         self.items.append(item)
     def render(self):
         result = []
         for item in self.items:
             result.append(item.render())
         return '\n'.join(result)
 gsm.registerAdapter(ViewBox)
 class Image(BaseComponent):
     """
     A image representing f(x,y) values
     """
     implements(IImage)
     adapts(Interface)
     def __init__(self, parent, data):
         super(Image, self).__init__(parent)
         self.data = data
     def render(self):
         return 'Image: Rendered image'
 gsm.registerAdapter(Image)

src/graph/interfaces.py

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@@ new file 100644 @@
 from zope.interface import Interface
 # ADAPTER BASE CLASSES
 class IBaseAdapter(Interface):
     """
     Base of all adapters
     """
     def __init__(self, obj):
         """
         Gets an Object to be adapted
         """
 class IAxis(Interface):
     """
     Axis interface
     """
     def __init__(self, parent):
         """
         createed with knowledge of its parent component
         """
 class ITickLabelAdapter(Interface):
     """
     An adapter that produces tick labels for an axis
     """
 class IViewBox(Interface):
     """
     Container to display some components
     """
 class IImage(Interface):
     """
     Some xy data
     """

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