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#!/usr/bin/python
from schedule import *
from graph import *
"""The renderer, a glue object which converts a schedule to its representation
on a graph."""
class Renderer(object):
def __init__(self, schedule):
self.schedule = schedule
def prepare_task_graph(self, SurfaceType=ImageSurface, attrs=GraphFormat()):
"""Outputs the fully-rendered graph (y-axis = tasks) to a Cairo ImageSurface"""
item_list = self.get_task_item_list()
start, end = self.schedule.get_time_bounds()
self.graph = TaskGraph(CairoCanvas, SurfaceType(), start, end, item_list, attrs)
def prepare_cpu_graph(self, SurfaceType=ImageSurface, attrs=GraphFormat()):
item_list = ['CPU %d' % i for i in range(0, self.schedule.get_num_cpus())]
start, end = self.schedule.get_time_bounds()
self.graph = CpuGraph(CairoCanvas, SurfaceType(), start, end, item_list, attrs)
def render_graph_full(self):
"""Does the heavy lifting for rendering a task or CPU graph, by scanning the schedule
and drawing it piece by piece"""
#graph.draw_axes('Time', '')
self.schedule.render(self.graph)
def write_out(self, fname):
self.graph.surface.write_out(fname)
def get_graph(self):
return self.graph
def get_schedule(self):
return self.schedule
def get_task_item_list(self):
return [task.get_name() for task in self.schedule.get_task_list()]
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