def _init_widgets(self):

        state = self._state

        if state is None:
            return

        if state.arch.name not in self.ARCH_REGISTERS:
            l.error(
                "Architecture %s is not listed in QRegisterViewer.ARCH_REGISTERS.",
                state.arch.name)
            return

        layout = QVBoxLayout()
        area = QScrollArea()
        area.setVerticalScrollBarPolicy(Qt.ScrollBarAsNeeded)
        area.setHorizontalScrollBarPolicy(Qt.ScrollBarAsNeeded)
        area.setWidgetResizable(True)

        regs = self.ARCH_REGISTERS[state.arch.name]

        # common ones
        common_regs = regs['common']

        for reg_name in common_regs:
            sublayout = QHBoxLayout()

            lbl_reg_name = QLabel(self)
            lbl_reg_name.setProperty('class', 'reg_viewer_label')
            lbl_reg_name.setText(reg_name)
            lbl_reg_name.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
            sublayout.addWidget(lbl_reg_name)

            sublayout.addSpacing(10)
            reg_value = QASTViewer(None, parent=self)
            self._registers[reg_name] = reg_value
            sublayout.addWidget(reg_value)

            layout.addLayout(sublayout)

        layout.setSpacing(0)
        layout.addStretch(0)
        layout.setContentsMargins(2, 2, 2, 2)

        # the container
        container = QFrame()
        container.setAutoFillBackground(True)
        palette = container.palette()
        palette.setColor(container.backgroundRole(), Qt.white)
        container.setPalette(palette)
        container.setLayout(layout)

        area.setWidget(container)

        base_layout = QVBoxLayout()
        base_layout.addWidget(area)
        self.setLayout(base_layout)
    def _load_tmps(self):

        state = self._state

        layout = QVBoxLayout()

        self._tmps.clear()
        if state is None:
            tmps = {}
        else:
            tmps = state.scratch.temps

        # tmps
        for tmp_id, tmp_value in tmps.iteritems():
            sublayout = QHBoxLayout()

            lbl_tmp_name = QLabel(self)
            lbl_tmp_name.setProperty('class', 'reg_viewer_label')
            lbl_tmp_name.setText("tmp_%d" % tmp_id)
            lbl_tmp_name.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
            sublayout.addWidget(lbl_tmp_name)

            sublayout.addSpacing(10)

            tmp_viewer = QASTViewer(tmp_value, parent=self)
            self._tmps[tmp_id] = tmp_viewer
            sublayout.addWidget(tmp_viewer)

            layout.addLayout(sublayout)

        layout.setSpacing(0)
        layout.addStretch(0)
        layout.setContentsMargins(2, 2, 2, 2)

        # the container
        container = QFrame()
        container.setAutoFillBackground(True)
        palette = container.palette()
        palette.setColor(container.backgroundRole(), Qt.white)
        container.setPalette(palette)
        container.setLayout(layout)

        self._area.setWidget(container)