def eventFilter(self, obj, e):
        if obj == self.command and e.type() == QEvent.KeyPress:
            history = self.device.history
            if e.modifiers() & Qt.ControlModifier:
                if e.key() == Qt.Key_H:
                    d = DeviceConsoleHistory(self.device.env.devices)
                    if d.exec_() == QDialog.Accepted:
                        self.command.setText(d.command)

                elif len(history) > 0:
                    if e.key() == Qt.Key_E:
                        self.command.setText(history[0])

                    if e.key() == Qt.Key_Down:
                        self.command.completer().setModel(QStringListModel(history))
                        self.command.setText(' ')
                        self.command.completer().complete()
            return False

        return QDockWidget.eventFilter(self, obj, e) 

def wheelEvent(self, event):
        delta = round(event.angleDelta().y()/120)

        # zoom
        if self.key == Qt.Key_Control:
            self.set_zoom_delta(delta)

        # width            
        elif self.key == Qt.Key_X:
            if not self.lock_width:
                self.set_width_delta(delta)

        # offset (fine)
        elif self.key == Qt.Key_Shift:
            self.set_offset_delta(delta)

            if self.get_sync_state():
                ida_kernwin.jumpto(self.base + self.offs)
                self.activateWindow()
                self.setFocus()

        elif self.key == Qt.Key_H:
            if not self.lock_width:
                less = delta < 0
                w = -8 if less else 8
                self.set_pixel_qty_per_line((self.get_pixel_qty_per_line() & 0xFFFFFFF8) + w)

        # offset (coarse)
        else:
            self.set_offset_delta(delta * self.get_pixel_qty_per_line())
            
            if self.get_sync_state():
                ida_kernwin.jumpto(self.base + self.offs)
                self.activateWindow()
                self.setFocus()

        self.statechanged.emit()
        self.repaint()
        return 

def mouseMoveEvent(self, event):
        x = event.pos().x()
        y = event.pos().y()
        within_graph = (x >= self.rect_x and x < self.rect_x + self.rect_x_width)
        """(sx1, sy1), (sx2, sy2) = self.slider_coords
        on_slider = (x >= sx1 and x< sx2 and y>= sy1 and y < sy2)"""
 
        update_state = self.is_dragging_graph or within_graph

        if self.is_dragging_graph:
            # zoom
            if self.key == Qt.Key_Control:
                self.set_zoom_delta(-1 if y > self.prev_mouse_y else 1)

            # width
            elif self.key == Qt.Key_X:
                if not self.lock_width:
                    self.set_width_delta(-1 if y > self.prev_mouse_y else 1)

            elif self.key == Qt.Key_H:
                if not self.lock_width:
                    less = y > self.prev_mouse_y
                    delta = -16 if less else 16
                    self.set_pixel_qty_per_line((self.get_pixel_qty_per_line() & 0xFFFFFFF0) + delta)

            # scrolling (offset)
            elif y != self.prev_mouse_y:
                # offset (fine)
                delta = y - self.prev_mouse_y

                # offset (coarse)
                if self.key != Qt.Key_Shift:
                    delta *= self.get_pixel_qty_per_line()
                    
                self.set_offset_delta(delta)

        elif within_graph:
            self._update_mouse_coords(event.pos())
            self.mouseOffs = self._get_offs_by_pos(event.pos())
            
            if self.link_pixel and self.highlight_cursor:
                highlight_item(ida_bytes.get_item_head(self.get_cursor_address()))
            elif self.highlight_cursor:
                unhighlight_item()

            self.setToolTip(self.fm.on_get_tooltip(self.get_address(), self.get_pixel_qty(), self.mouseOffs))

        if update_state:
            self.prev_mouse_y = y
            self.x = x
            self.statechanged.emit()
            self.repaint()

        return