view/data.py

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#
# Copyright (c) 2006 Cristian L. Vlasceanu
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom
# the Software is furnished to do so, subject to the following
# conditions:
# 
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
# AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
# OR OTHER DEALINGS IN THE SOFTWARE.
# 
# NOTE: The above applies solely to Python source code provided 
# herein, and it DOES NOT COVER the Zero Debugger Engine and plug-ins.
#
import gobject
import gtk
from base import Base
import traceback


def add_variable(view, model, iter, var):
        model.set_value(iter, 0, var)
        model.set_value(iter, 1, var.name())
        model.set_value(iter, 2, var.type().name())
        try:
                model.set_value(iter, 3, unicode(var.value(), "utf-8"))
        except:
                #traceback.print_exc()
                pass
        if var.has_children():
                #insert a place-holder
                model.insert_before(iter, None)
        if var.is_expanded():
                view.expand_row(model.get_path(iter), False)
                

class Data(Base):
        """
        Displays program data, which may be local and/or global 
        variables, data members, expression evaluation results, etc.
        """
        
        def __init__(self, tree):
                Base.__init__(self)
                self.__model = gtk.TreeStore(
                        gobject.TYPE_PYOBJECT, 
                        gobject.TYPE_STRING,
                        gobject.TYPE_STRING,
                        gobject.TYPE_STRING 
                )
                if tree:
                        self.__view = tree
                        tree.set_model(self.__model)
                        renderer = gtk.CellRendererText()
                        tree.append_column(gtk.TreeViewColumn("Name", renderer, text=1))
                        tree.append_column(gtk.TreeViewColumn("Type", renderer, text=2))
                        tree.append_column(gtk.TreeViewColumn("Value", renderer, text=3))
                        tree.get_column(0).set_resizable(True)
                        tree.get_column(1).set_resizable(True)
                        tree.connect("row-collapsed", self.on_row_collapsed)
                        tree.connect("row-expanded", self.on_row_expanded)


        def clear(self):
                self.__model.clear()

        
        def show(self, vars):
                self.clear()
                for v in vars:
                        model = self.__model
                        iter = model.insert_before(None, None)
                        add_variable(self.__view, model, iter, v)
                

        def on_row_collapsed(self, treeview, iter, path):
                var = self.__model.get_value(iter, 0)
                var.set_expanded(False)


        def on_row_expanded(self, treeview, iter, path):
                model = self.__model
                var = model.get_value(iter, 0)
                var.set_expanded(True)
                child = model.iter_nth_child(iter, 0)
                if model.get_value(child, 0):
                        pass
                else:
                        #has place-holder, replace with actual children
                        for v in var.children():
                                i = model.insert_before(iter, None)
                                add_variable(self.__view, model, i, v)
                        model.remove(child)