Example #1
0
    def create_ui(self):
        button = QPushButton("Rotate - ", self)
        button.setGeometry(200, 450, 100, 50)
        button.clicked.connect(self.rotateMinus)

        button2 = QPushButton("Rotate + ", self)
        button2.setGeometry(320, 450, 100, 50)
        button2.clicked.connect(self.rotatePlus)

        scene = QGraphicsScene(self)

        greenBrush = QBrush(Qt.green)
        blueBrush = QBrush(Qt.blue)

        blackPen = QPen(Qt.black)
        blackPen.setWidth(5)

        ellipse = scene.addEllipse(10, 10, 200, 200, blackPen, greenBrush)
        rect = scene.addRect(-100, -100, 200, 200, blackPen, blueBrush)

        scene.addText("antoine-libert.com", QFont("Sanserif", 15))

        ellipse.setFlag(QGraphicsItem.ItemIsMovable)
        rect.setFlag(QGraphicsItem.ItemIsMovable)

        self.view = QGraphicsView(scene, self)
        self.view.setGeometry(0, 0, 640, 440)
Example #2
0
    def test_setParentItem(self):
        global qgraphics_item_painted

        scene = QGraphicsScene()
        scene.addText("test")
        view = QGraphicsView(scene)

        rect = self.createRoundRect(scene)
        view.show()
        QTimer.singleShot(1000, self.quit_app)
        self.app.exec_()
        self.assertTrue(qgraphics_item_painted)
    def test_setParentItem(self):
        global qgraphics_item_painted

        scene = QGraphicsScene()
        scene.addText("test")
        view = QGraphicsView(scene)

        rect = self.createRoundRect(scene)
        view.show()
        QTimer.singleShot(1000, self.quit_app)
        self.app.exec_()
        self.assert_(qgraphics_item_painted)
 def _create_icon_renderer(self, icon_code, color_code):
     scene = QGraphicsScene()
     font = QFont('Font Awesome 5 Free Solid')
     text_item = scene.addText(icon_code, font)
     text_item.setDefaultTextColor(color_code)
     _align_text_in_item(text_item)
     self.icon_renderers[icon_code,
                         color_code] = _SceneSvgRenderer.from_scene(scene)
Example #5
0
    def update_console(self, text):
        """
        This function updates logging_view with the given text, but has to do it in quite a roundabout way because
        I had to use a QGraphicsScene for this to allow for scrolling

        :param text: String that is updated in the console
        """
        current_text = self.logging_view.scene().items()[0].toPlainText(
        ) if self.logging_view.scene() is not None else ''
        current_text += '[{}] {}\n'.format(
            datetime.datetime.now().strftime('%X'), text)
        new_scene = QGraphicsScene()
        x = new_scene.addText(current_text)
        x.setTextInteractionFlags(Qt.TextSelectableByMouse)
        self.logging_view.setScene(new_scene)
 def _create_obj_group_renderer(self, object_class_name):
     display_icon = self.display_icons.get(object_class_name, -1)
     icon_code, color_code = interpret_icon_id(display_icon)
     font = QFont('Font Awesome 5 Free Solid')
     scene = QGraphicsScene()
     x = 0
     for _ in range(2):
         y = 0
         for _ in range(2):
             text_item = scene.addText(chr(icon_code), font)
             text_item.setDefaultTextColor(color_code)
             text_item.setPos(x, y)
             y += 0.875 * text_item.boundingRect().height()
         x += 0.875 * text_item.boundingRect().width()
     scene.addRect(scene.itemsBoundingRect())
     self.obj_group_renderers[
         object_class_name] = _SceneSvgRenderer.from_scene(scene)
 def _create_rel_cls_renderer(self, object_class_names):
     if not any(object_class_names):
         self.rel_cls_renderers[object_class_names] = self.icon_renderer(
             "\uf1b3", 0)
         return
     font = QFont('Font Awesome 5 Free Solid')
     scene = QGraphicsScene()
     x = 0
     for j, obj_cls_name in enumerate(object_class_names):
         display_icon = self.display_icons.get(obj_cls_name, -1)
         icon_code, color_code = interpret_icon_id(display_icon)
         text_item = scene.addText(chr(icon_code), font)
         text_item.setDefaultTextColor(color_code)
         _align_text_in_item(text_item)
         if j % 2 == 0:
             y = 0
         else:
             y = -0.875 * 0.75 * text_item.boundingRect().height()
             text_item.setZValue(-1)
         text_item.setPos(x, y)
         x += 0.875 * 0.5 * text_item.boundingRect().width()
     _center_scene(scene)
     self.rel_cls_renderers[
         object_class_names] = _SceneSvgRenderer.from_scene(scene)
class AddItem(UsesQApplication):
    '''Tests for QGraphicsScene.add*'''

    qapplication = True

    def setUp(self):
        #Acquire resources
        super(AddItem, self).setUp()
        self.scene = QGraphicsScene()
        # While the scene does not inherits from QWidget, requires
        # an application to make the internals work.

    def tearDown(self):
        #Release resources
        del self.scene
        super(AddItem, self).tearDown()

    def testEllipse(self):
        #QGraphicsScene.addEllipse
        item = self.scene.addEllipse(100, 100, 100, 100)
        self.assertTrue(isinstance(item, QGraphicsEllipseItem))

    def testLine(self):
        #QGraphicsScene.addLine
        item = self.scene.addLine(100, 100, 200, 200)
        self.assertTrue(isinstance(item, QGraphicsLineItem))

    def testPath(self):
        #QGraphicsScene.addPath
        item = self.scene.addPath(QPainterPath())
        self.assertTrue(isinstance(item, QGraphicsPathItem))

    def testPixmap(self):
        #QGraphicsScene.addPixmap
        item = self.scene.addPixmap(QPixmap())
        self.assertTrue(isinstance(item, QGraphicsPixmapItem))

    def testPolygon(self):
        #QGraphicsScene.addPolygon
        points = [QPointF(0, 0), QPointF(100, 100), QPointF(0, 100)]
        item = self.scene.addPolygon(QPolygonF(points))
        self.assertTrue(isinstance(item, QGraphicsPolygonItem))

    def testRect(self):
        #QGraphicsScene.addRect
        item = self.scene.addRect(100, 100, 100, 100)
        self.assertTrue(isinstance(item, QGraphicsRectItem))

    def testSimpleText(self):
        #QGraphicsScene.addSimpleText
        item = self.scene.addSimpleText('Monty Python 42')
        self.assertTrue(isinstance(item, QGraphicsSimpleTextItem))

    def testText(self):
        #QGraphicsScene.addText
        item = self.scene.addText('Monty Python 42')
        self.assertTrue(isinstance(item, QGraphicsTextItem))

    def testWidget(self):
        #QGraphicsScene.addWidget
        # XXX: printing some X11 error when using under PyQt4
        item = self.scene.addWidget(QPushButton())
        self.assertTrue(isinstance(item, QGraphicsProxyWidget))
Example #9
0
class QPOIViewer(QWidget):
    """
    POI Viewer QWidget
    """

    TAG_SPACING = 50
    LEGEND_X = -50
    LEGEND_Y = 0
    LEGEND_WIDTH = 10

    TRACE_FUNC_X = 0
    TRACE_FUNC_Y = 0
    TRACE_FUNC_WIDTH = 50
    TRACE_FUNC_MINHEIGHT = 1000

    TAB_HEADER_SIZE = 40
    MAX_WINDOW_SIZE = 500

    MARK_X = LEGEND_X
    MARK_WIDTH = TRACE_FUNC_X - LEGEND_X + TRACE_FUNC_WIDTH
    MARK_HEIGHT = 1

    POIID_COLUMN = 0
    CRASH_COLUMN = 1
    CATEGORY_COLUMN = 2
    DIAGNOSE_COLUMN = 3
    COLUMN_FIELD = ['id', 'bbl', 'category', 'diagnose']


    def __init__(self, workspace, parent=None, diagnose_handler=None):
        super().__init__(parent=parent)
        self.workspace = workspace
        self._diagnose_handler = diagnose_handler

        self.mark = None
        self.legend = None
        self.legend_height = 0
        self.legend_img = None
        self.trace_func_unit_height = 0

        self.trace_func = None
        self.trace_id = None

        self.tabView = None
        self.traceView = None
        self.traceScene = None
        self.POITraceTab = None
        self.multiPOITab : QWidget = None
        self.multiPOIList : QTableWidget = None

        self.mark = None
        self.curr_position = 0
        self._use_precise_position = False
        self._selected_traces = []
        self._selected_poi = None

        self._init_widgets()

        self.selected_ins.am_subscribe(self._subscribe_select_ins)
        self.poi_trace.am_subscribe(self._subscribe_set_trace)
        self.multi_poi.am_subscribe(self._subscribe_add_poi)

        self.multiPOIList.cellDoubleClicked.connect(self._on_cell_double_click)
        self.multiPOIList.itemChanged.connect(self._on_diagnose_change)

    #
    # Forwarding properties
    #

    @property
    def disasm_view(self):
        """
        Get the current disassembly view (if there is one), or create a new one as needed.
        """
        view = self.workspace.view_manager.current_view_in_category("disassembly")
        if view is None:
            view = self.workspace._get_or_create_disassembly_view()
        return view

    @property
    def poi_trace(self):
        return self.workspace.instance.poi_trace

    @property
    def multi_poi(self):
        return self.workspace.instance.multi_poi

    @property
    def selected_ins(self):
        return self.disasm_view.infodock.selected_insns

    def _init_widgets(self):
        _l.debug("QPOI Viewer Initiating")
        self.tabView = QTabWidget() # QGraphicsView()
        self.tabView.setContentsMargins(0, 0, 0, 0)

        #
        # POI trace Tab
        #
        self.POITraceTab = QWidget()
        self.POITraceTab.setContentsMargins(0, 0, 0, 0)
        singleLayout = QVBoxLayout()
        singleLayout.setSpacing(0)
        singleLayout.setContentsMargins(0, 0, 0, 0)

        self.traceView = QGraphicsView()
        self.traceScene = QGraphicsScene()
        self.traceView.setScene(self.traceScene)

        singleLayout.addWidget(self.traceView)
        self.POITraceTab.setLayout(singleLayout)

        #
        # multiPOI Tab
        #
        self.multiPOITab = QMultiPOITab(self)
        # self.multiPOITab = QWidget()
        multiLayout = QVBoxLayout()
        multiLayout.setSpacing(0)
        multiLayout.setContentsMargins(0, 0, 0, 0)

        self.multiPOIList = QTableWidget(0, 4) # row, col
        self.multiPOIList.setHorizontalHeaderItem(0, QTableWidgetItem("ID"))
        self.multiPOIList.setHorizontalHeaderItem(1, QTableWidgetItem("Crash Point"))
        self.multiPOIList.setHorizontalHeaderItem(2, QTableWidgetItem("Tag"))
        self.multiPOIList.setHorizontalHeaderItem(3, QTableWidgetItem("Diagnose"))
        self.multiPOIList.horizontalHeader().setStretchLastSection(True)
        self.multiPOIList.horizontalHeader().setSectionResizeMode(QHeaderView.ResizeToContents)
        self.multiPOIList.setSelectionBehavior(QAbstractItemView.SelectRows)
        multiLayout.addWidget(self.multiPOIList)
        self.multiPOITab.setLayout(multiLayout)

        self.tabView.addTab(self.multiPOITab, "POI List")
        self.tabView.addTab(self.POITraceTab, "POI Trace")

        self.POI_TRACE = 1
        self.MULTI_POI = 0

        layout = QVBoxLayout()
        layout.addWidget(self.tabView)
        layout.setContentsMargins(0, 0, 0, 0)

        self.setLayout(layout)
        self.show()

    def _reset(self):
        self.traceScene.clear() #clear items
        self.mark = None

        self.legend = None
        self.legend_height = 0

        self.trace_func = QGraphicsItemGroup()
        self.trace_id = QGraphicsItemGroup()
        self.traceScene.addItem(self.trace_func)
        self.hide()

    #
    # Event
    #

    def _on_cell_double_click(self, row, _):
        _l.debug("row %d is double clicked", row)
        first_cell = self.multiPOIList.item(row, 0)
        if first_cell is None:
            return
        poi_id = first_cell.text()
        poi = self.multi_poi.am_obj.get_poi_by_id(poi_id)
        if poi is None:
            return
        # sanity checks
        if not isinstance(poi, dict):
            return
        if 'output' not in poi or not isinstance(poi['output'], dict):
            return
        if 'bbl_history' not in poi['output']:
            return

        trace = poi['output']['bbl_history']
        if self._selected_poi != poi_id and trace is not None:
            # render the trace
            self.poi_trace.am_obj = TraceStatistics(self.workspace, trace, trace_id=poi_id)

            # show the trace statistic in POI trace
            self.poi_trace.am_event()

            # show covered basic blocks and functions
            self.multi_poi.am_obj.reload_heatmap(poi_id)

            # redraw function view
            view = self.workspace.view_manager.first_view_in_category('functions')
            if view is not None:
                view.refresh()

            # redraw disassembly view
            view = self.workspace.view_manager.first_view_in_category('disassembly')
            if view is not None:
                view.redraw_current_graph()

        if trace is not None:
            # switch to POI trace tab
            self.tabView.setCurrentIndex(self.POI_TRACE)
        self._selected_poi = poi_id

        second_cell = self.multiPOIList.item(row, 1)
        crash_addr = None
        if second_cell is not None:
            try:
                crash_addr = int(second_cell.text(), 16)
            except ValueError:
                pass
        if crash_addr is not None:
            # show the crashing address
            view = self.workspace.view_manager.first_view_in_category('disassembly')
            if view is not None:
                crash_func = self._get_func_from_addr(crash_addr)
                if crash_func is not None:
                    self.workspace.on_function_selected(crash_func)
                    self.selected_ins.clear()
                    self.selected_ins.update([crash_addr])
                    self.selected_ins.am_event()
                    view.current_graph.show_instruction(crash_addr)

    def _on_diagnose_change(self, item: QTableWidgetItem):
        column = item.column()
        row = item.row()

        poi_id = self.multiPOIList.item(row, self.POIID_COLUMN).text()
        content = item.text()
        original_content = self.multi_poi.am_obj.get_content_by_id_column(poi_id, column)
        _l.debug('updaing %s, content: %s, original: %s', poi_id, content, original_content)
        if not self._is_identical(content, original_content):
            updated_poi = self.multi_poi.update_poi(poi_id, column, content)
            self._diagnose_handler.submit_updated_poi(poi_id, updated_poi)

    def _subscribe_add_poi(self):
        _l.debug('add a poi to multi poi list')
        if self.multi_poi.am_none:
            self.multi_poi.am_obj = MultiPOI(self.workspace)
        poi_ids = self.multi_poi.am_obj.get_all_poi_ids()

        self.multiPOIList.clearContents()
        self._populate_poi_table(self.multiPOIList, poi_ids)
        self.show()

    def _subscribe_set_trace(self):
        _l.debug('on set trace in poi trace viewer')
        self._reset()
        if self.poi_trace.am_none:
            return
        _l.debug('minheight: %d, count: %d', self.TRACE_FUNC_MINHEIGHT,
                self.poi_trace.count)
        if self.poi_trace.count <= 0:
            _l.warning("No valid addresses found in trace to show. Check base address offsets?")
            self.poi_trace.am_obj = None
            self.poi_trace.am_event()
            return
        if self.TRACE_FUNC_MINHEIGHT < self.poi_trace.count * 15:
            self.trace_func_unit_height = 15
            show_func_tag = True
        else:
            self.trace_func_unit_height = self.TRACE_FUNC_MINHEIGHT / self.poi_trace.count
            show_func_tag = True

        self.legend_height = int(self.poi_trace.count * self.trace_func_unit_height)

        self._show_trace_func(show_func_tag)
        self._show_legend()
        self._set_mark_color()
        self._refresh_multi_list()

        # boundingSize = self.traceScene.itemsBoundingRect().width()
        # windowSize = boundingSize
        # if boundingSize > self.MAX_WINDOW_SIZE:
        #     windowSize = self.MAX_WINDOW_SIZE
        # self.traceScene.setSceneRect(self.traceScene.itemsBoundingRect()) #resize
        # if windowSize > self.width():
        #     self.setMinimumWidth(windowSize)

        self.show()

    def _subscribe_select_ins(self, **kwargs): # pylint: disable=unused-argument
        if self.poi_trace.am_none:
            return

        if self.mark is not None:
            for i in self.mark.childItems():
                self.mark.removeFromGroup(i)
                self.traceScene.removeItem(i)
            self.traceScene.removeItem(self.mark)

        self.mark = QGraphicsItemGroup()
        self.traceScene.addItem(self.mark)

        if self.selected_ins:
            addr = next(iter(self.selected_ins))
            positions = self.poi_trace.get_positions(addr)
            if positions: #if addr is in list of positions
                # handle case where insn was selected from disas view
                if not self._use_precise_position:
                    self.curr_position = positions[0] - self.poi_trace.count
                for p in positions:
                    color = self._get_mark_color(p, self.poi_trace.count)
                    y = self._get_mark_y(p)

                    if p == self.poi_trace.count + self.curr_position: #add thicker line for 'current' mark
                        self.mark.addToGroup(self.traceScene.addRect(self.MARK_X, y, self.MARK_WIDTH,
                                                                     self.MARK_HEIGHT*4,
                                                                     QPen(QColor('black')), QBrush(color)))
                    else:
                        self.mark.addToGroup(self.traceScene.addRect(self.MARK_X, y, self.MARK_WIDTH,
                                                                     self.MARK_HEIGHT, QPen(color), QBrush(color)))

                self.traceScene.update() #force redraw of the traceScene
                self.scroll_to_position(self.curr_position)

    def _get_func_from_addr(self, addr):
        if self.workspace.instance.cfg.am_none:
            return None
        bbl = self.workspace.instance.cfg.get_any_node(addr, anyaddr=True)
        function_addr = bbl.function_address
        return self.workspace.instance.project.kb.functions.get(function_addr)

    def _populate_poi_table(self, view, poi_ids):
        view.clearContents()
        view.setRowCount(len(poi_ids))
        row = 0 #start after label row
        for poi_id in poi_ids:
            poi = self.multi_poi.am_obj.get_poi_by_id(poi_id)
            _l.debug('populating poi: %s', poi)
            category = poi['category']
            output = poi['output']
            crash_addr = output['bbl']
            if crash_addr is not None:
                crash = hex(crash_addr)
            else:
                crash = None
            diagnose = output.get('diagnose')
            _l.debug('poi_ids: %s', poi_ids)
            _l.debug('current poi id: %s', poi_id)
            self._set_item(view, row, self.POIID_COLUMN, poi_id, editable=False)
            self._set_item(view, row, self.CRASH_COLUMN, crash, editable=True)
            self._set_item(view, row, self.CATEGORY_COLUMN, category, editable=True)
            self._set_item(view, row, self.DIAGNOSE_COLUMN, diagnose, editable=True)
            row += 1
            _l.debug('poi_ids: %s', poi_ids)

    @staticmethod
    def _set_item(view, row, column, text, editable=True):
        if not text:
            text = ""
        item = QTableWidgetItem(text)
        if not editable:
            item.setFlags(item.flags() ^ Qt.ItemIsEditable)
        view.setItem(row, column, item)

    def _refresh_multi_list(self):
        multiPOI = self.multi_poi.am_obj
        trace_ids = multiPOI.get_all_poi_ids()

        self.multiPOIList.clearContents()
        self._populate_poi_table(self.multiPOIList, trace_ids)
        if self._selected_traces and self.multiPOIList.rowCount() > 0:
            self.multiPOIList.item(0, 0).setSelected(True)
            self.multiPOIList.item(0, 1).setSelected(True)
        else:
            for row in range(self.multiPOIList.rowCount()):
                item = self.multiPOIList.item(row, 0)
                inputItem = self.multiPOIList.item(row, 1)
                if item.text() in self._selected_traces:
                    item.setSelected(True)
                    inputItem.setSelected(True)
        self.multi_poi.am_event()

    def _on_tab_change(self):
        multiPOI = self.multi_poi.am_obj
        if self.tabView.currentIndex() == self.MULTI_POI:
            multiPOI.is_active_tab = True
            self._refresh_multi_list()
        elif self.tabView.currentIndex() == self.POI_TRACE:
            multiPOI = self.multi_poi.am_obj
            multiPOI.is_active_tab = False
            # self._show_trace_ids()

    def scroll_to_position(self, position):
        relative_pos = self.poi_trace.count + position
        y_offset = self._get_mark_y(relative_pos)

        scrollValue = 0
        if y_offset > 0.5 * self.traceView.size().height():
            scrollValue = y_offset - 0.5 * self.traceView.size().height()
        scrollValue = min(scrollValue, self.traceView.verticalScrollBar().maximum())
        self.traceView.verticalScrollBar().setValue(scrollValue)
        self._use_precise_position = False

    def jump_next_insn(self):
        # for some reason indexing is done backwards
        if self.curr_position + self.poi_trace.count < self.poi_trace.count - 1:
            self.curr_position += 1
            self._use_precise_position = True
            bbl_addr = self.poi_trace.get_bbl_from_position(self.curr_position)
            func = self.poi_trace.get_func_from_position(self.curr_position)
            self._jump_bbl(func, bbl_addr)

    def jump_prev_insn(self):
        if self.curr_position + self.poi_trace.count > 0:
            self.curr_position -= 1
            self._use_precise_position = True
            bbl_addr = self.poi_trace.get_bbl_from_position(self.curr_position)
            func = self.poi_trace.get_func_from_position(self.curr_position)
            self._jump_bbl(func, bbl_addr)

    def mousePressEvent(self, event):
        button = event.button()
        pos = self._to_logical_pos(event.pos())
        if button == Qt.LeftButton and self.tabView.currentIndex() == self.POI_TRACE and self._at_legend(pos):
            func = self._get_func_from_y(pos.y())
            bbl_addr = self._get_bbl_from_y(pos.y())
            self._use_precise_position = True
            self.curr_position = self._get_position(pos.y())
            self._jump_bbl(func, bbl_addr)

    def _jump_bbl(self, func, bbl_addr):
        disasm_view = self.disasm_view
        if disasm_view is not None:
            all_insn_addrs = self.workspace.instance.project.factory.block(bbl_addr).instruction_addrs
            # TODO: replace this with am_events perhaps?
            self.workspace.on_function_selected(func)
            self.selected_ins.clear()
            self.selected_ins.update(all_insn_addrs)
            self.selected_ins.am_event()
            # TODO: this ought to happen automatically as a result of the am_event
            disasm_view.current_graph.show_instruction(bbl_addr)

    def _get_mark_color(self, i, total):
        relative_gradient_pos = i * 1000 // total
        return self.legend_img.pixelColor(self.LEGEND_WIDTH // 2,
                                          relative_gradient_pos)

    def _get_mark_y(self, i):
        return self.TRACE_FUNC_Y + self.trace_func_unit_height * i

    def _show_trace_func(self, show_func_tag=True):
        x = self.TRACE_FUNC_X
        y = self.TRACE_FUNC_Y
        prev_name = None
        for position in self.poi_trace.trace_func:
            func_name = position.func_name
            color = self.poi_trace.get_func_color(func_name)
            self.trace_func.addToGroup(self.traceScene.addRect(x, y,
                                                          self.TRACE_FUNC_WIDTH, self.trace_func_unit_height,
                                                          QPen(color), QBrush(color)))
            if show_func_tag is True and func_name != prev_name:
                tag = self.traceScene.addText(func_name, QFont("Source Code Pro", 7))
                tag.setPos(x + self.TRACE_FUNC_WIDTH +
                           self.TAG_SPACING, y -
                           tag.boundingRect().height() // 2)
                self.trace_func.addToGroup(tag)
                anchor = self.traceScene.addLine(
                    self.TRACE_FUNC_X + self.TRACE_FUNC_WIDTH, y,
                    x + self.TRACE_FUNC_WIDTH + self.TAG_SPACING, y)
                self.trace_func.addToGroup(anchor)
                prev_name = func_name
            y += self.trace_func_unit_height

    @staticmethod
    def _make_legend_gradient(x1, y1, x2, y2):
        gradient = QLinearGradient(x1, y1, x2, y2)
        gradient.setColorAt(0.0, Qt.red)
        gradient.setColorAt(0.4, Qt.yellow)
        gradient.setColorAt(0.6, Qt.green)
        gradient.setColorAt(0.8, Qt.blue)
        gradient.setColorAt(1.0, Qt.darkBlue)
        return gradient

    def _show_legend(self):
        pen = QPen(Qt.transparent)

        gradient = self._make_legend_gradient(self.LEGEND_X, self.LEGEND_Y,
                                   self.LEGEND_X, self.LEGEND_Y + self.legend_height)
        brush = QBrush(gradient)
        self.legend = self.traceScene.addRect(self.LEGEND_X, self.LEGEND_Y,
                                         self.LEGEND_WIDTH, self.legend_height, pen, brush)

        reference_gradient = self._make_legend_gradient(0, 0, self.LEGEND_WIDTH, 1000)
        base_img = QImage(self.LEGEND_WIDTH, 1000, QImage.Format.Format_ARGB32)
        p = QPainter(base_img)
        p.fillRect(base_img.rect(),reference_gradient)
        self.legend_img = base_img #reference shade

    def _set_mark_color(self):
        _l.debug('trace count: %d', self.poi_trace.count)
        for p in range(self.poi_trace.count):
            color = self._get_mark_color(p, self.poi_trace.count)
            self.poi_trace.set_mark_color(p, color)

    def _at_legend(self, pos):
        x = pos.x()
        y = pos.y()
        return self.TRACE_FUNC_X + self.LEGEND_X < x < self.traceView.width() and \
           self.TRACE_FUNC_Y < y < self.TRACE_FUNC_Y + self.legend_height

    def _to_logical_pos(self, pos):
        x_offset = self.traceView.horizontalScrollBar().value()
        y_offset = self.traceView.verticalScrollBar().value()
        return QPoint(pos.x() + x_offset, pos.y() + y_offset)

    def _get_position(self, y):
        y_relative = y - self.legend_height - self.TAB_HEADER_SIZE

        return int(y_relative // self.trace_func_unit_height)

    def _get_bbl_from_y(self, y):
        position = self._get_position(y)
        return self.poi_trace.get_bbl_from_position(position)

    def _get_func_from_y(self, y):
        position = self._get_position(y)
        func = self.poi_trace.get_func_from_position(position)
        return func

    #
    # Context Menu
    #

    def menu_add_empty_poi(self):
        _l.debug('adding a new empty poi item')

        if self._diagnose_handler.get_image_id() is None:
            QMessageBox.warning(self.workspace.main_window,
                                "No CHESS target available",
                                "No angr project is loaded, or you did not associate the current project with a CHESS "
                                "target. Please load a binary and associate it with a CHESS target before creating "
                                "POIs.")
            return

        poi_id = str(uuid4())
        if self.multi_poi.am_none:
            self.multi_poi.am_obj = MultiPOI(self.workspace)
        empty_poi = deepcopy(EMPTY_POI)
        self.multi_poi.add_poi(poi_id, empty_poi)
        self.multi_poi.am_event()
        self._diagnose_handler.submit_updated_poi(poi_id, empty_poi)

    def menu_remove_poi(self):
        items = self.multiPOIList.selectedItems()
        row = items.pop().row()
        poi_id = self.multiPOIList.item(row, 0).text()
        _l.debug('removing ID %s', poi_id)
        self.multi_poi.remove_poi(poi_id)
        self.multi_poi.am_event()

    @staticmethod
    def _is_identical(content, original_content):
        if content == original_content:
            return True
        if content == '' and original_content is None:
            return True
        try:
            if int(content, 16) == int(original_content):
                return True
        except (TypeError, ValueError):
            return False
        return False
class AddItem(UsesQApplication):
    '''Tests for QGraphicsScene.add*'''

    qapplication = True

    def setUp(self):
        #Acquire resources
        super(AddItem, self).setUp()
        self.scene = QGraphicsScene()
        # While the scene does not inherits from QWidget, requires
        # an application to make the internals work.

    def tearDown(self):
        #Release resources
        del self.scene
        super(AddItem, self).tearDown()

    def testEllipse(self):
        #QGraphicsScene.addEllipse
        item = self.scene.addEllipse(100, 100, 100, 100)
        self.assertTrue(isinstance(item, QGraphicsEllipseItem))

    def testLine(self):
        #QGraphicsScene.addLine
        item = self.scene.addLine(100, 100, 200, 200)
        self.assertTrue(isinstance(item, QGraphicsLineItem))

    def testPath(self):
        #QGraphicsScene.addPath
        item = self.scene.addPath(QPainterPath())
        self.assertTrue(isinstance(item, QGraphicsPathItem))

    def testPixmap(self):
        #QGraphicsScene.addPixmap
        item = self.scene.addPixmap(QPixmap())
        self.assertTrue(isinstance(item, QGraphicsPixmapItem))

    def testPolygon(self):
        #QGraphicsScene.addPolygon
        points = [QPointF(0, 0), QPointF(100, 100), QPointF(0, 100)]
        item = self.scene.addPolygon(QPolygonF(points))
        self.assertTrue(isinstance(item, QGraphicsPolygonItem))

    def testRect(self):
        #QGraphicsScene.addRect
        item = self.scene.addRect(100, 100, 100, 100)
        self.assertTrue(isinstance(item, QGraphicsRectItem))

    def testSimpleText(self):
        #QGraphicsScene.addSimpleText
        item = self.scene.addSimpleText('Monty Python 42')
        self.assertTrue(isinstance(item, QGraphicsSimpleTextItem))

    def testText(self):
        #QGraphicsScene.addText
        item = self.scene.addText('Monty Python 42')
        self.assertTrue(isinstance(item, QGraphicsTextItem))

    def testWidget(self):
        #QGraphicsScene.addWidget
        # XXX: printing some X11 error when using under PyQt4
        item = self.scene.addWidget(QPushButton())
        self.assertTrue(isinstance(item, QGraphicsProxyWidget))
Example #11
0
class QTraceViewer(QWidget):
    TAG_SPACING = 50
    LEGEND_X = -50
    LEGEND_Y = 0
    LEGEND_WIDTH = 10

    TRACE_FUNC_X = 0
    TRACE_FUNC_Y = 0
    TRACE_FUNC_WIDTH = 50
    TRACE_FUNC_MINHEIGHT = 1000

    MARK_X = LEGEND_X
    MARK_WIDTH = TRACE_FUNC_X - LEGEND_X + TRACE_FUNC_WIDTH
    MARK_HEIGHT = 1

    def __init__(self, workspace, disasm_view, parent=None):
        super().__init__(parent=parent)
        self.workspace = workspace
        self.disasm_view = disasm_view

        self.view = None
        self.scene = None
        self.mark = None
        self.curr_position = 0
        self._use_precise_position = False

        self._init_widgets()

        self.trace.am_subscribe(self._on_set_trace)
        self.selected_ins.am_subscribe(self._on_select_ins)
        self.view.installEventFilter(self)

    #
    # Forwarding properties
    #

    @property
    def trace(self):
        return self.workspace.instance.trace

    @property
    def selected_ins(self):
        return self.disasm_view.infodock.selected_insns

    def _init_widgets(self):
        self.view = QGraphicsView()
        self.scene = QGraphicsScene()
        self.view.setScene(self.scene)

        self._reset()

        layout = QHBoxLayout()
        layout.addWidget(self.view)
        layout.setContentsMargins(0, 0, 0, 0)
        layout.setAlignment(self.view, Qt.AlignLeft)

        self.setLayout(layout)

    def _reset(self):
        self.scene.clear()  #clear items
        self.mark = None

        self.legend = None
        self.legend_height = 0

        self.trace_func = QGraphicsItemGroup()
        self.scene.addItem(self.trace_func)
        self.hide()

    def _on_set_trace(self, **kwargs):
        self._reset()

        if self.trace.am_obj is not None:
            l.debug('minheight: %d, count: %d', self.TRACE_FUNC_MINHEIGHT,
                    self.trace.count)
            if self.trace.count <= 0:
                l.warning(
                    "No valid addresses found in trace to show. Check base address offsets?"
                )
                self.trace.am_obj = None
                self.trace.am_event()
                return
            if self.TRACE_FUNC_MINHEIGHT < self.trace.count * 15:
                self.trace_func_unit_height = 15
                show_func_tag = True
            else:
                self.trace_func_unit_height = self.TRACE_FUNC_MINHEIGHT / self.trace.count
                show_func_tag = True

            self.legend_height = int(self.trace.count *
                                     self.trace_func_unit_height)

            self._show_trace_func(show_func_tag)
            self._show_legend()
            self._set_mark_color()

            self.scene.setSceneRect(self.scene.itemsBoundingRect())  #resize
            self.setFixedWidth(self.scene.itemsBoundingRect().width())
            self.view.setFixedWidth(self.scene.itemsBoundingRect().width())

            self.show()

    def _on_select_ins(self, **kwargs):
        if self.trace == None:
            return

        if self.mark is not None:
            for i in self.mark.childItems():
                self.mark.removeFromGroup(i)
                self.scene.removeItem(i)
            self.scene.removeItem(self.mark)

        self.mark = QGraphicsItemGroup()
        self.scene.addItem(self.mark)

        if self.selected_ins:
            addr = next(iter(self.selected_ins))
            positions = self.trace.get_positions(addr)
            if positions:  #if addr is in list of positions
                if not self._use_precise_position:  #handle case where insn was selected from disas view
                    self.curr_position = positions[0] - self.trace.count
                for p in positions:
                    color = self._get_mark_color(p, self.trace.count)
                    y = self._get_mark_y(p, self.trace.count)

                    if p == self.trace.count + self.curr_position:  #add thicker line for 'current' mark
                        self.mark.addToGroup(
                            self.scene.addRect(self.MARK_X, y, self.MARK_WIDTH,
                                               self.MARK_HEIGHT * 4,
                                               QPen(QColor('black')),
                                               QBrush(color)))
                    else:
                        self.mark.addToGroup(
                            self.scene.addRect(self.MARK_X, y, self.MARK_WIDTH,
                                               self.MARK_HEIGHT, QPen(color),
                                               QBrush(color)))
                #y = self._get_mark_y(positions[0], self.trace.count)
                #self.view.verticalScrollBar().setValue(y - 0.5 * self.view.size().height())

                self.scene.update()  #force redraw of the scene
                self.scroll_to_position(self.curr_position)

    def scroll_to_position(self, position):
        relative_pos = self.trace.count + position
        y_offset = self._get_mark_y(relative_pos, self.trace.count)

        scrollValue = 0
        if y_offset > 0.5 * self.view.size().height():
            scrollValue = y_offset - 0.5 * self.view.size().height()
        scrollValue = min(scrollValue, self.view.verticalScrollBar().maximum())
        self.view.verticalScrollBar().setValue(scrollValue)
        self._use_precise_position = False

    def jump_next_insn(self):
        if self.curr_position + self.trace.count < self.trace.count - 1:  #for some reason indexing is done backwards
            self.curr_position += 1
            self._use_precise_position = True
            func_name = self.trace.trace_func[self.curr_position].func_name
            func = self._get_func_from_func_name(func_name)
            bbl_addr = self.trace.trace_func[self.curr_position].bbl_addr
            self._jump_bbl(func, bbl_addr)

    def jump_prev_insn(self):
        if self.curr_position + self.trace.count > 0:
            self.curr_position -= 1
            self._use_precise_position = True
            func_name = self.trace.trace_func[self.curr_position].func_name
            func = self._get_func_from_func_name(func_name)
            bbl_addr = self.trace.trace_func[self.curr_position].bbl_addr
            self._jump_bbl(func, bbl_addr)

    def eventFilter(self, object, event):  #specifically to catch arrow keys
        # more elegant solution to link w/ self.view's scroll bar keypressevent?
        if event.type() == QEvent.Type.KeyPress:
            if not (event.modifiers() & Qt.ShiftModifier):  #shift + arrowkeys
                return False
            key = event.key()
            if key == Qt.Key_Up or key == Qt.Key_Left:
                self.jump_prev_insn()
            elif key == Qt.Key_Down or key == Qt.Key_Right:
                self.jump_next_insn()
            return True

        return False  # pass through all other events

    def mousePressEvent(self, event):
        button = event.button()
        pos = self._to_logical_pos(event.pos())
        if button == Qt.LeftButton and self._at_legend(pos):
            func = self._get_func_from_y(pos.y())
            bbl_addr = self._get_bbl_from_y(pos.y())
            self._use_precise_position = True
            self.curr_position = self._get_position(pos.y())
            self._jump_bbl(func, bbl_addr)

    def _jump_bbl(self, func, bbl_addr):
        all_insn_addrs = self.workspace.instance.project.factory.block(
            bbl_addr).instruction_addrs
        # TODO: replace this with am_events perhaps?
        self.workspace.on_function_selected(func)
        self.selected_ins.clear()
        self.selected_ins.update(all_insn_addrs)
        self.selected_ins.am_event()
        # TODO: this ought to happen automatically as a result of the am_event
        self.disasm_view.current_graph.show_instruction(bbl_addr)

    def _get_mark_color(self, i, total):
        relative_gradient_pos = i * 1000 // total
        return self.legend_img.pixelColor(self.LEGEND_WIDTH // 2,
                                          relative_gradient_pos)

    def _get_mark_y(self, i, total):
        return self.TRACE_FUNC_Y + self.trace_func_unit_height * i

    def _show_trace_func(self, show_func_tag):
        x = self.TRACE_FUNC_X
        y = self.TRACE_FUNC_Y
        prev_name = None
        for position in self.trace.trace_func:
            bbl_addr = position.bbl_addr
            func_name = position.func_name
            l.debug('Draw function %x, %s', bbl_addr, func_name)
            color = self.trace.get_func_color(func_name)
            self.trace_func.addToGroup(
                self.scene.addRect(x, y, self.TRACE_FUNC_WIDTH,
                                   self.trace_func_unit_height, QPen(color),
                                   QBrush(color)))
            if show_func_tag is True and func_name != prev_name:
                tag = self.scene.addText(func_name,
                                         QFont("Source Code Pro", 7))
                tag.setPos(x + self.TRACE_FUNC_WIDTH + self.TAG_SPACING,
                           y - tag.boundingRect().height() // 2)
                self.trace_func.addToGroup(tag)
                anchor = self.scene.addLine(
                    self.TRACE_FUNC_X + self.TRACE_FUNC_WIDTH, y,
                    x + self.TRACE_FUNC_WIDTH + self.TAG_SPACING, y)
                self.trace_func.addToGroup(anchor)
                prev_name = func_name
            y += self.trace_func_unit_height

    def _make_legend_gradient(self, x1, y1, x2, y2):
        gradient = QLinearGradient(x1, y1, x2, y2)
        gradient.setColorAt(0.0, Qt.red)
        gradient.setColorAt(0.4, Qt.yellow)
        gradient.setColorAt(0.6, Qt.green)
        gradient.setColorAt(0.8, Qt.blue)
        gradient.setColorAt(1.0, Qt.darkBlue)
        return gradient

    def _show_legend(self):
        pen = QPen(Qt.transparent)

        gradient = self._make_legend_gradient(
            self.LEGEND_X, self.LEGEND_Y, self.LEGEND_X,
            self.LEGEND_Y + self.legend_height)
        brush = QBrush(gradient)
        self.legend = self.scene.addRect(self.LEGEND_X, self.LEGEND_Y,
                                         self.LEGEND_WIDTH, self.legend_height,
                                         pen, brush)

        reference_gradient = self._make_legend_gradient(
            0, 0, self.LEGEND_WIDTH, 1000)
        base_img = QImage(self.LEGEND_WIDTH, 1000, QImage.Format.Format_ARGB32)
        p = QPainter(base_img)
        p.fillRect(base_img.rect(), reference_gradient)
        self.legend_img = base_img  #reference shade

    def _set_mark_color(self):
        for p in range(self.trace.count):
            color = self._get_mark_color(p, self.trace.count)
            self.trace.set_mark_color(p, color)

    def _at_legend(self, pos):
        x = pos.x()
        y = pos.y()
        if self.TRACE_FUNC_X + self.LEGEND_X < x < self.view.width() and \
           self.TRACE_FUNC_Y < y < self.TRACE_FUNC_Y + self.legend_height:
            return True
        else:
            return False

    def _to_logical_pos(self, pos):
        x_offset = self.view.horizontalScrollBar().value()
        y_offset = self.view.verticalScrollBar().value()
        return QPoint(pos.x() + x_offset, pos.y() + y_offset)

    def _get_position(self, y):
        y_relative = y - self.legend_height

        return int(y_relative // self.trace_func_unit_height)

    def _get_bbl_from_y(self, y):
        position = self._get_position(y)
        return self.trace.get_bbl_from_position(position)

    def _get_func_from_func_name(self, func_name):
        return self.workspace.instance.kb.functions.function(name=func_name)

    def _get_func_from_y(self, y):
        position = self._get_position(y)
        func_name = self.trace.get_func_name_from_position(position)
        return self._get_func_from_func_name(func_name)
Example #12
0
class QTraceViewer(QWidget):
    """
    Load a basic block trace through json and visualize it in the disassembly
    Ref: https://github.com/angr/angr-management/pull/122
    """

    TAG_SPACING = 50
    LEGEND_X = -50
    LEGEND_Y = 0
    LEGEND_WIDTH = 10

    TRACE_FUNC_X = 0
    TRACE_FUNC_Y = 0
    TRACE_FUNC_WIDTH = 50
    TRACE_FUNC_MINHEIGHT = 1000

    TAB_HEADER_SIZE = 40
    MAX_WINDOW_SIZE = 500

    MARK_X = LEGEND_X
    MARK_WIDTH = TRACE_FUNC_X - LEGEND_X + TRACE_FUNC_WIDTH
    MARK_HEIGHT = 1

    def __init__(self, workspace, disasm_view, parent=None):
        super().__init__(parent=parent)
        self.workspace = workspace
        self.disasm_view = disasm_view

        self.mark = None
        self.legend = None
        self.legend_height = 0
        self.legend_img = None
        self.trace_func_unit_height = 0

        self.trace_func = None
        self.trace_id = None

        self.view = None
        self.traceView = None
        self.traceTab = None
        self.traceScene = None
        self.multiView = None
        self.listView = None
        self.mark = None
        self.curr_position = 0
        self._use_precise_position = False
        self._selected_traces = []

        self._init_widgets()

        self.trace.am_subscribe(self._on_set_trace)
        self.selected_ins.am_subscribe(self._on_select_ins)
        self.traceTab.installEventFilter(self)

    #
    # Forwarding properties
    #

    @property
    def trace(self):
        return self.workspace.instance.trace

    @property
    def multi_trace(self):
        return self.workspace.instance.multi_trace

    @property
    def selected_ins(self):
        return self.disasm_view.infodock.selected_insns

    def _init_widgets(self):
        self.view = QTabWidget()  # QGraphicsView()

        self.traceTab = QWidget()
        tracelayout = QVBoxLayout()

        self.traceView = QGraphicsView()
        self.traceScene = QGraphicsScene()
        self.traceView.setScene(self.traceScene)

        self.listView = QTableWidget(0, 2)  # row, col
        self.listView.setHorizontalHeaderItem(0, QTableWidgetItem("Trace ID"))
        self.listView.setHorizontalHeaderItem(1, QTableWidgetItem("Input ID"))
        self.listView.setSelectionMode(QAbstractItemView.SingleSelection)
        self.listView.setSelectionBehavior(QAbstractItemView.SelectRows)
        # self.listView.horizontalHeader().setStretchLastSection(True)
        # self.listView.horizontalHeader().setSectionResizeModel(0, QHeaderView.Stretch)
        self.listView.cellClicked.connect(self._switch_current_trace)

        self.traceSeedButton = QPushButton("View Input Seed")
        self.traceSeedButton.clicked.connect(self._view_input_seed)

        tracelayout.addWidget(self.traceView)
        tracelayout.addWidget(self.listView)
        tracelayout.addWidget(self.traceSeedButton)
        self.traceTab.setLayout(tracelayout)

        self.multiView = QWidget()
        multiLayout = QVBoxLayout()
        self.multiTraceList = QTableWidget(0, 2)  # row, col
        self.multiTraceList.setSelectionMode(QAbstractItemView.MultiSelection)
        self.multiTraceList.setSelectionBehavior(QAbstractItemView.SelectRows)
        self.multiTraceList.setHorizontalScrollMode(
            self.multiTraceList.ScrollPerPixel)
        self.multiTraceList.setHorizontalHeaderItem(
            0, QTableWidgetItem("Trace ID"))
        self.multiTraceList.setHorizontalHeaderItem(
            1, QTableWidgetItem("Input ID"))
        self.selectMultiTrace = QPushButton("Refresh Heatmap")
        self.selectMultiTrace.clicked.connect(self._refresh_heatmap)
        multiLayout.addWidget(self.multiTraceList)
        multiLayout.addWidget(self.selectMultiTrace)
        self.multiView.setLayout(multiLayout)

        self.view.addTab(self.traceTab, "SingleTrace")
        self.view.addTab(self.multiView, "MultiTrace HeatMap")
        self.SINGLE_TRACE = 0
        self.MULTI_TRACE = 1

        self.view.currentChanged.connect(self._on_tab_change)

        self._reset()

        layout = QVBoxLayout()
        layout.addWidget(self.view)
        layout.setContentsMargins(0, 0, 0, 0)
        layout.setAlignment(self.view, Qt.AlignLeft)

        self.setLayout(layout)

    def _reset(self):
        self.traceScene.clear()  #clear items
        self.listView.clearContents()
        self.multiTraceList.clearContents()
        self.mark = None

        self.legend = None
        self.legend_height = 0

        self.trace_func = QGraphicsItemGroup()
        self.trace_id = QGraphicsItemGroup()
        self.traceScene.addItem(self.trace_func)
        self.hide()

    def _view_input_seed(self):
        current_trace_stats = self.trace.am_obj
        input_id = current_trace_stats.input_id

        inputSeed = self.multi_trace.am_obj.get_input_seed_for_id(input_id)
        msgText = "%s" % inputSeed
        msgDetails = "Input for [%s]" % current_trace_stats.id
        msgbox = QMessageBox()
        msgbox.setWindowTitle("Seed Input")
        msgbox.setDetailedText(msgDetails)
        msgbox.setText(msgText)
        msgbox.setStandardButtons(QMessageBox.Ok)
        msgbox.exec()

    def _switch_current_trace(self, row):
        if self.listView.rowCount() <= 0:
            return

        current_trace = self.trace.am_obj.id
        new_trace = self.multiTraceList.item(row, 0).text()
        if current_trace == new_trace:
            return

        trace_stats = self.multi_trace.am_obj.get_trace_with_id(new_trace)
        if trace_stats:
            self.trace.am_obj = trace_stats
            self._on_set_trace()

    def _on_set_trace(self):
        self._reset()
        if self.trace.am_none or self.trace.count is None:
            return

        l.debug('minheight: %d, count: %d', self.TRACE_FUNC_MINHEIGHT,
                self.trace.count)
        if self.trace.count <= 0:
            l.warning(
                "No valid addresses found in trace to show. Check base address offsets?"
            )
            self.trace.am_obj = None
            self.trace.am_event()
            return
        if self.TRACE_FUNC_MINHEIGHT < self.trace.count * 15:
            self.trace_func_unit_height = 15
            show_func_tag = True
        else:
            self.trace_func_unit_height = self.TRACE_FUNC_MINHEIGHT / self.trace.count
            show_func_tag = True

        self.legend_height = int(self.trace.count *
                                 self.trace_func_unit_height)

        self._show_trace_func(show_func_tag)
        self._show_legend()
        self._show_trace_ids()
        self._set_mark_color()
        self._refresh_multi_list()

        boundingSize = self.traceScene.itemsBoundingRect().width()
        windowSize = boundingSize
        if boundingSize > self.MAX_WINDOW_SIZE:
            windowSize = self.MAX_WINDOW_SIZE
        self.traceScene.setSceneRect(
            self.traceScene.itemsBoundingRect())  #resize
        self.setFixedWidth(windowSize)

        # self.listScene.setSceneRect(self.listScene.itemsBoundingRect()) #resize
        self.multiView.setFixedWidth(windowSize)
        cellWidth = windowSize // 2
        self.listView.setColumnWidth(0, cellWidth)
        self.listView.setColumnWidth(1, cellWidth)
        self.listView.setFixedHeight(self.multiView.height() // 4)
        self.multiTraceList.setColumnWidth(0, cellWidth)
        self.multiTraceList.setColumnWidth(1, cellWidth)
        self.view.setFixedWidth(windowSize)

        self.show()

    def _populate_trace_table(self, view, trace_ids):
        numIDs = len(trace_ids)
        view.clearContents()
        view.setRowCount(numIDs)
        row = 0  #start after label row
        for traceID in trace_ids:
            inputID = self.multi_trace.am_obj.get_input_id_for_trace_id(
                traceID)
            if inputID is None:
                self.workspace.log("No inputID found for trace %s" % traceID)
            view.setItem(row, 0, QTableWidgetItem(traceID))
            view.setItem(row, 1, QTableWidgetItem(inputID))
            row += 1

    def _refresh_heatmap(self):
        multiTrace = self.multi_trace.am_obj
        multiTrace.clear_heatmap()
        multiTrace.is_active_tab = True

        selected_items = self.multiTraceList.selectedItems()
        self._selected_traces.clear()
        for row in range(self.multiTraceList.rowCount()):
            item = self.multiTraceList.item(row, 0)
            if item in selected_items:
                self._selected_traces.append(item.text())
        multiTrace.reload_heatmap(self._selected_traces)
        self.multi_trace.am_event()

    def _refresh_multi_list(self):
        multiTrace = self.multi_trace.am_obj
        trace_ids = multiTrace.get_all_trace_ids()

        self.multiTraceList.clearContents()
        self._populate_trace_table(self.multiTraceList, trace_ids)
        if self._selected_traces and self.multiTraceList.rowCount() > 0:
            self.multiTraceList.item(0, 0).setSelected(True)
            self.multiTraceList.item(0, 1).setSelected(True)
        else:
            for row in range(self.multiTraceList.rowCount()):
                item = self.multiTraceList.item(row, 0)
                inputItem = self.multiTraceList.item(row, 1)
                if item.text() in self._selected_traces:
                    item.setSelected(True)
                    inputItem.setSelected(True)
        self.multi_trace.am_event()

    def _on_tab_change(self):
        # self._reset()
        multiTrace = self.multi_trace.am_obj
        if self.view.currentIndex() == self.MULTI_TRACE:
            multiTrace.is_active_tab = True
            self._refresh_multi_list()
        elif self.view.currentIndex() == self.SINGLE_TRACE:
            multiTrace = self.multi_trace.am_obj
            multiTrace.is_active_tab = False
            self._show_trace_ids()

    def _on_select_ins(self, **kwargs):  # pylint: disable=unused-argument
        if self.trace.am_none:
            return

        if self.mark is not None:
            for i in self.mark.childItems():
                self.mark.removeFromGroup(i)
                self.traceScene.removeItem(i)
            self.traceScene.removeItem(self.mark)

        self.mark = QGraphicsItemGroup()
        self.traceScene.addItem(self.mark)

        if self.selected_ins:
            addr = next(iter(self.selected_ins))
            positions = self.trace.get_positions(addr)
            if positions:  #if addr is in list of positions
                if not self._use_precise_position:  #handle case where insn was selected from disas view
                    self.curr_position = positions[0] - self.trace.count
                for p in positions:
                    color = self._get_mark_color(p, self.trace.count)
                    y = self._get_mark_y(p)

                    if p == self.trace.count + self.curr_position:  #add thicker line for 'current' mark
                        self.mark.addToGroup(
                            self.traceScene.addRect(self.MARK_X, y,
                                                    self.MARK_WIDTH,
                                                    self.MARK_HEIGHT * 4,
                                                    QPen(QColor('black')),
                                                    QBrush(color)))
                    else:
                        self.mark.addToGroup(
                            self.traceScene.addRect(self.MARK_X, y,
                                                    self.MARK_WIDTH,
                                                    self.MARK_HEIGHT,
                                                    QPen(color),
                                                    QBrush(color)))

                self.traceScene.update()  #force redraw of the traceScene
                self.scroll_to_position(self.curr_position)

    def scroll_to_position(self, position):
        relative_pos = self.trace.count + position
        y_offset = self._get_mark_y(relative_pos)

        scrollValue = 0
        if y_offset > 0.5 * self.traceView.size().height():
            scrollValue = y_offset - 0.5 * self.traceView.size().height()
        scrollValue = min(scrollValue,
                          self.traceView.verticalScrollBar().maximum())
        self.traceView.verticalScrollBar().setValue(scrollValue)
        self._use_precise_position = False

    def jump_next_insn(self):
        if self.curr_position + self.trace.count < self.trace.count - 1:  #for some reason indexing is done backwards
            self.curr_position += 1
            self._use_precise_position = True
            bbl_addr = self.trace.get_bbl_from_position(self.curr_position)
            func = self.trace.get_func_from_position(self.curr_position)
            self._jump_bbl(func, bbl_addr)

    def jump_prev_insn(self):
        if self.curr_position + self.trace.count > 0:
            self.curr_position -= 1
            self._use_precise_position = True
            bbl_addr = self.trace.get_bbl_from_position(self.curr_position)
            func = self.trace.get_func_from_position(self.curr_position)
            self._jump_bbl(func, bbl_addr)

    def eventFilter(self, obj, event):  #specifically to catch arrow keys #pylint: disable=unused-argument
        # more elegant solution to link w/ self.view's scroll bar keypressevent?
        if event.type() == QEvent.Type.KeyPress:
            if not event.modifiers() & Qt.ShiftModifier:  #shift + arrowkeys
                return False
            key = event.key()
            if key in [Qt.Key_Up, Qt.Key_Left]:
                self.jump_prev_insn()
            elif key in [Qt.Key_Down, Qt.Key_Right]:
                self.jump_next_insn()
            return True

        return False  # pass through all other events

    def mousePressEvent(self, event):
        button = event.button()
        pos = self._to_logical_pos(event.pos())
        if button == Qt.LeftButton and self.view.currentIndex(
        ) == self.SINGLE_TRACE and self._at_legend(pos):
            func = self._get_func_from_y(pos.y())
            bbl_addr = self._get_bbl_from_y(pos.y())
            self._use_precise_position = True
            self.curr_position = self._get_position(pos.y())
            self._jump_bbl(func, bbl_addr)

    def _jump_bbl(self, func, bbl_addr):
        all_insn_addrs = self.workspace.instance.project.factory.block(
            bbl_addr).instruction_addrs
        # TODO: replace this with am_events perhaps?
        if func is None:
            return
        self.workspace.on_function_selected(func)
        self.selected_ins.clear()
        self.selected_ins.update(all_insn_addrs)
        self.selected_ins.am_event()
        # TODO: this ought to happen automatically as a result of the am_event
        self.disasm_view.current_graph.show_instruction(bbl_addr)

    def _get_mark_color(self, i, total):
        relative_gradient_pos = i * 1000 // total
        return self.legend_img.pixelColor(self.LEGEND_WIDTH // 2,
                                          relative_gradient_pos)

    def _get_mark_y(self, i):
        return self.TRACE_FUNC_Y + self.trace_func_unit_height * i

    def _show_trace_ids(self):
        trace_ids = self.multi_trace.get_all_trace_ids()
        # traceID = self.listScene.addText(id_txt, QFont("Source Code Pro", 7))
        # traceID.setPos(5,5)
        self.listView.clearContents()
        self._populate_trace_table(self.listView, trace_ids)
        if len(self.listView.selectedItems()) <= 0 and not self.trace.am_none:
            for row in range(self.listView.rowCount()):
                item = self.listView.item(row, 0)
                inputItem = self.listView.item(row, 1)
                if self.trace.id in item.text():
                    item.setSelected(True)
                    inputItem.setSelected(True)
                    break

    def _show_trace_func(self, show_func_tag):
        x = self.TRACE_FUNC_X
        y = self.TRACE_FUNC_Y
        prev_name = None
        for position in self.trace.trace_func:
            bbl_addr = position.bbl_addr
            func_name = position.func_name
            l.debug('Draw function %x, %s', bbl_addr, func_name)
            color = self.trace.get_func_color(func_name)
            self.trace_func.addToGroup(
                self.traceScene.addRect(x, y, self.TRACE_FUNC_WIDTH,
                                        self.trace_func_unit_height,
                                        QPen(color), QBrush(color)))
            if show_func_tag is True and func_name != prev_name:
                tag = self.traceScene.addText(func_name,
                                              QFont("Source Code Pro", 7))
                tag.setPos(x + self.TRACE_FUNC_WIDTH + self.TAG_SPACING,
                           y - tag.boundingRect().height() // 2)
                self.trace_func.addToGroup(tag)
                anchor = self.traceScene.addLine(
                    self.TRACE_FUNC_X + self.TRACE_FUNC_WIDTH, y,
                    x + self.TRACE_FUNC_WIDTH + self.TAG_SPACING, y)
                self.trace_func.addToGroup(anchor)
                prev_name = func_name
            y += self.trace_func_unit_height

    @staticmethod
    def _make_legend_gradient(x1, y1, x2, y2):
        gradient = QLinearGradient(x1, y1, x2, y2)
        gradient.setColorAt(0.0, Qt.red)
        gradient.setColorAt(0.4, Qt.yellow)
        gradient.setColorAt(0.6, Qt.green)
        gradient.setColorAt(0.8, Qt.blue)
        gradient.setColorAt(1.0, Qt.darkBlue)
        return gradient

    def _show_legend(self):
        pen = QPen(Qt.transparent)

        gradient = self._make_legend_gradient(
            self.LEGEND_X, self.LEGEND_Y, self.LEGEND_X,
            self.LEGEND_Y + self.legend_height)
        brush = QBrush(gradient)
        self.legend = self.traceScene.addRect(self.LEGEND_X, self.LEGEND_Y,
                                              self.LEGEND_WIDTH,
                                              self.legend_height, pen, brush)

        reference_gradient = self._make_legend_gradient(
            0, 0, self.LEGEND_WIDTH, 1000)
        base_img = QImage(self.LEGEND_WIDTH, 1000, QImage.Format.Format_ARGB32)
        p = QPainter(base_img)
        p.fillRect(base_img.rect(), reference_gradient)
        self.legend_img = base_img  #reference shade

    def _set_mark_color(self):
        for p in range(self.trace.count):
            color = self._get_mark_color(p, self.trace.count)
            self.trace.set_mark_color(p, color)

    def _at_legend(self, pos):
        x = pos.x()
        y = pos.y()
        return self.TRACE_FUNC_X + self.LEGEND_X < x < self.traceView.width() and \
           self.TRACE_FUNC_Y < y < self.TRACE_FUNC_Y + self.legend_height

    def _to_logical_pos(self, pos):
        x_offset = self.traceView.horizontalScrollBar().value()
        y_offset = self.traceView.verticalScrollBar().value()
        return QPoint(pos.x() + x_offset, pos.y() + y_offset)

    def _get_position(self, y):
        y_relative = y - self.legend_height - self.TAB_HEADER_SIZE

        return int(y_relative // self.trace_func_unit_height)

    def _get_bbl_from_y(self, y):
        position = self._get_position(y)
        return self.trace.get_bbl_from_position(position)

    def _get_func_from_y(self, y):
        position = self._get_position(y)
        func = self.trace.get_func_from_position(position)
        return func
class MainWindow(QMainWindow, Observer):
    resized = Signal()

    def __init__(self):
        super(MainWindow, self).__init__()
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)

        self.scene_org = QGraphicsScene()
        self.scene_reduced = QGraphicsScene()
        self.scene_template = QGraphicsScene()
        self.ui.graphicsViewOriginal.setScene(self.scene_org)

        self.controller = None

        self.computation_started = False

        # slots
        self.resized.connect(self.resize_image)
        self.ui.tabWidget.currentChanged.connect(self.resize_image)

        self.ui.toolButtonOpenPhoto.clicked.connect(self.__select_image)
        self.ui.pushButtonStart.clicked.connect(self.__start_computation)

        self.ui.pushButtonExport.clicked.connect(self.__export)

        self.installEventFilter(self)

    def eventFilter(self, widget, event):
        if event.type() == QEvent.KeyPress:
            key = event.key()
            if key == Qt.Key_Return and not self.computation_started:
                self.__start_computation()
            elif key == Qt.Key_Enter and not self.computation_started:
                self.__start_computation()
            return True
        return QWidget.eventFilter(self, widget, event)

    def set_controller(self, controller):
        self.controller = controller

    def __select_image(self):
        file_dialog = QFileDialog()
        MainWindow.__set_file_dialog_options(
            file_dialog,
            get_config().getboolean('UI', 'NO_NATIVE_DIALOG'))

        path = file_dialog.getOpenFileName(
            self, 'Open File', " ../../", 'Images (*.png *.svg *.jpg *.jpeg)',
            '')[0]
        if path:
            self.controller.open_image(path)
            self.ui.tabWidget.setCurrentIndex(0)
            self.resize_image()

    @staticmethod
    def __set_file_dialog_options(file_dialog, is_not_native_dialog):
        file_dialog.setOption(QFileDialog.DontUseNativeDialog,
                              is_not_native_dialog)

    def __start_computation(self):
        if self.controller:
            self.__disable_ui(True)
            self.__set_computation_text()

            worker = ComputeCanvasWorker(
                self.ui.spinBoxNumberOfColors.value(),
                self.ui.comboBoxPrintSize.currentText(),
                self.ui.spinBoxMinSurfaceSize.value(),
                self.ui.checkBox.isChecked(), self.controller)  # no parent!
            self.controller.register_observer(worker)
            self.thread = QThread()
            worker.moveToThread(self.thread)
            worker.finished.connect(self.thread.quit)
            self.thread.started.connect(worker.run)
            self.thread.start()

    def __export(self):

        file_name = self.open_save_file_dialog(
        ) if self.controller.canvas else ""
        self.controller.export(self.ui.comboBoxPrintSize.currentText(),
                               file_name=file_name)

    def display_image(self, img_data):
        self.__clear_scenes()
        self.__add_image_to_scene(self.scene_org, img_data[0])

        if img_data[1]:
            self.__add_image_to_scene(self.scene_reduced, img_data[1])
            self.__add_image_to_scene(self.scene_template, img_data[2])
            self.ui.tabWidget.setCurrentIndex(1)

    def __set_computation_text(self):
        self.scene_org = QGraphicsScene()
        self.scene_org.addText("It'll take a moment.")
        self.ui.graphicsViewOriginal.setScene(self.scene_org)
        self.ui.tabWidget.setCurrentIndex(0)
        self.computation_started = True
        self.resize_image()

    def __clear_scenes(self):
        self.scene_org = QGraphicsScene()
        self.scene_reduced = QGraphicsScene()
        self.scene_template = QGraphicsScene()
        self.ui.graphicsViewOriginal.setScene(self.scene_org)
        self.ui.graphicsViewReducedColors.setScene(self.scene_reduced)
        self.ui.graphicsViewTemplate.setScene(self.scene_template)

    def __disable_ui(self, boolean):
        self.ui.pushButtonStart.setDisabled(boolean)
        self.ui.pushButtonExport.setDisabled(boolean)
        self.ui.toolButtonOpenPhoto.setDisabled(boolean)
        self.ui.spinBoxNumberOfColors.setDisabled(boolean)
        self.ui.spinBoxMinSurfaceSize.setDisabled(boolean)
        self.ui.comboBoxPrintSize.setDisabled(boolean)
        self.ui.checkBox.setDisabled(boolean)
        self.ui.tabWidget.setDisabled(boolean)

    def __add_image_to_scene(self, scene, image):
        pixmap = self.__pil_to_pixmap(image)
        scene.addPixmap(pixmap)

    @staticmethod
    def __pil_to_pixmap(img):
        if img.mode == "RGB":
            pass
        elif img.mode == "L":
            img = img.convert("RGBA")
        data = img.convert("RGBA").tobytes("raw", "BGRA")
        qim = QImage(data, img.size[0], img.size[1], QImage.Format_ARGB32)
        pixmap = QPixmap.fromImage(qim)
        return pixmap

    def resizeEvent(self, event):
        self.resized.emit()
        return super(MainWindow, self).resizeEvent(event)

    def resize_image(self):
        if self.controller:
            if self.computation_started:
                self.ui.graphicsViewOriginal.fitInView(
                    QRectF(0, 0, self.scene_org.width(),
                           self.scene_org.height()), Qt.KeepAspectRatio)
            else:
                self.ui.graphicsViewOriginal.fitInView(
                    QRectF(0, 0,
                           self.controller.get_image_size()[0],
                           self.controller.get_image_size()[1]),
                    Qt.KeepAspectRatio)
                self.ui.graphicsViewReducedColors.fitInView(
                    QRectF(0, 0,
                           self.controller.get_image_size()[0],
                           self.controller.get_image_size()[1]),
                    Qt.KeepAspectRatio)
                self.ui.graphicsViewTemplate.fitInView(
                    QRectF(0, 0,
                           self.controller.get_image_size()[0],
                           self.controller.get_image_size()[1]),
                    Qt.KeepAspectRatio)

    def open_save_file_dialog(self):
        file_dialog = QFileDialog()
        file_name = file_dialog.getSaveFileName(self, 'Save as PDF', " ../../",
                                                'PDF (*.pdf)', '')[0]

        return file_name

    @staticmethod
    def show_message(text):
        msgBox = QMessageBox()
        msgBox.setText(text)
        msgBox.exec_()

    def notify(self, update_data):
        self.computation_started = False
        self.__disable_ui(False)
        if isinstance(update_data, str):
            self.show_message(update_data)
        else:
            self.display_image(update_data)