Python PyQt5.QtWidgets.QGraphicsRectItem() Examples

def draw_water(self):
        if self.proj in ('Spherical', 'ETRS89 - LAEA Europe'):
            cx, cy = self.to_canvas_coordinates(17, 48)
            # if the projection is ETRS89, we need the diameter and not the radius
            R = 6371000*self.ratio*(1 if self.proj == 'Spherical' else 2)
            earth_water = QtWidgets.QGraphicsEllipseItem(cx - R, cy - R, 2*R, 2*R)
            earth_water.setZValue(0)
            earth_water.setBrush(self.water_brush)
            self.polygons.addToGroup(earth_water)
        else:
            # we compute the projected bounds of the Mercator (3395) projection
            # upper-left corner x and y coordinates:
            ulc_x, ulc_y = self.to_canvas_coordinates(-180, 84)
            # lower-right corner x and y coordinates
            lrc_x, lrc_y = self.to_canvas_coordinates(180, -84.72)
            # width and height of the map (required for the QRectItem)
            width, height = lrc_x - ulc_x, lrc_y - ulc_y
            earth_water = QtWidgets.QGraphicsRectItem(ulc_x, ulc_y, width, height)
            earth_water.setZValue(0)
            earth_water.setBrush(self.water_brush)
            self.polygons.addToGroup(earth_water) 

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

        self.separation_areas = []  # type: list[QGraphicsRectItem]
        self.captions = []  # type: list[QGraphicsSimpleTextItem]

        self.centers = [0]

        self.always_show_symbols_legend = False

        self.ones_caption = None
        self.zeros_caption = None

        self.ones_arrow = None
        self.zeros_arrow = None
        self.selection_area = HorizontalSelection(0, 0, 0, 0, fillcolor=settings.SELECTION_COLOR,
                                                  opacity=settings.SELECTION_OPACITY)
        self.addItem(self.selection_area) 

def __init__(self, app, data):
        super(TextGraphicsItem, self).__init__(None)

        self.app = app
        self.conn = app.conn
        self.settings = app.settings
        self.project_path = app.project_path
        self.data = data
        self.setFlags (QtWidgets.QGraphicsItem.ItemIsMovable | QtWidgets.QGraphicsItem.ItemIsFocusable | QtWidgets.QGraphicsItem.ItemIsSelectable)
        self.setTextInteractionFlags(QtCore.Qt.TextEditable)
        if self.data['cid'] is not None:
            self.font = QtGui.QFont(self.settings['font'], self.data['fontsize'], QtGui.QFont.Normal)
            self.setFont(self.font)
            self.setPlainText(self.data['name'])
        if self.data['cid'] is None:
            self.font = QtGui.QFont(self.settings['font'], self.data['fontsize'], QtGui.QFont.Bold)
            self.setFont(self.font)
            self.setPlainText(self.data['name'])
        self.setPos(self.data['x'], self.data['y'])
        self.document().contentsChanged.connect(self.text_changed)
        #self.border_rect = QtWidgets.QGraphicsRectItem(0, 0, rect.width(), rect.height())
        #self.border_rect.setParentItem(self) 

def __init__(self):
        QtWidgets.QGraphicsRectItem.__init__(self, self.cursor)
        self.setPen(self.pen)
        self.setZValue(1e9)
        self.setFlag(QtWidgets.QGraphicsItem.ItemIgnoresTransformations) 

def draw(self, defending, status, scene, size):
        """function draw

        :param defending: bool
        :param status: str {'Charge', 'Shoot', 'Stand'}
        :param scene: QGraphicsScene
        :param size: QSize

        no return
        """
        if not isinstance(defending, bool):
            raise ValueError('defending must be a boolean')
        if not isinstance(status, str) or (status != 'Charge' and status != 'Shoot' and status != 'Stand'):
            raise ValueError('status must be a str in {\'Charge\', \'Shoot\', \'Stand\'}')

        self.unitType.draw(defending, status, scene, size)
        flag_width = self.nation.flag.width() * 10 / self.nation.flag.height()
        item = scene.addPixmap(self.nation.flag.scaled(flag_width, 10))
        item.setPos(size.width() - 5 - flag_width, 0)
        # life bar
        item1 = QGraphicsRectItem(0, size.height() - 10, size.width() - 5, 5)
        item1.setBrush(QBrush(Qt.white))
        item2 = QGraphicsRectItem(0, size.height() - 10, self.unitStrength / 100 * (size.width() - 5), 5)
        item2.setBrush(QBrush(Qt.green))
        # moral bar
        item3 = QGraphicsRectItem(0, size.height() - 15, size.width() - 5, 5)
        item3.setBrush(QBrush(Qt.white))
        item4 = QGraphicsRectItem(0, size.height() - 15, self.moral / 100 * (size.width() - 5), 5)
        item4.setBrush(QBrush(Qt.blue))
        scene.addItem(item1)
        scene.addItem(item2)
        scene.addItem(item3)
        scene.addItem(item4) 

def draw_sep_area(self, centers: np.ndarray, show_symbols=False):
        x = self.sceneRect().x()
        y = self.sceneRect().y()
        h = self.sceneRect().height()
        w = self.sceneRect().width()

        num_areas = len(centers) + 1
        if num_areas != len(self.separation_areas):
            for area in self.separation_areas:
                self.removeItem(area)
            self.separation_areas.clear()

            for i in range(num_areas):
                area = QGraphicsRectItem(0, 0, 0, 0)
                if i % 2 == 0:
                    area.setBrush(settings.ZEROS_AREA_COLOR)
                else:
                    area.setBrush(settings.ONES_AREA_COLOR)
                area.setOpacity(settings.SEPARATION_OPACITY)
                area.setPen(QPen(settings.TRANSPARENT_COLOR, 0))
                self.addItem(area)
                self.separation_areas.append(area)

        start = y + h

        for i, area in enumerate(self.separation_areas):
            area.show()
            try:
                self.separation_areas[i].setRect(x, start, w, -(start - centers[i]))
                start -= (start - centers[i])
            except IndexError:
                self.separation_areas[i].setRect(x, start, w, -(start - y))

        if self.noise_area is not None:
            self.noise_area.hide()

        self.centers = centers
        self.redraw_legend(show_symbols) 

def __init__(self, *args):
		super(CodeScene, self).__init__(*args)
		self.itemDict = {}
		self.edgeDict = {}
		self.stopItem = {}		# 不显示的符号
		self.scheme = {}		# 保存的call graph,
								# {'schemeName': {'node':[node1, node2,...], 'edge':{(node3, node5):{'customEdge':True}, ...}}, ...}
		self.curValidScheme = []# 选中物体有关的scheme
		self.curValidSchemeColor = []
		self.candidateEdge = [] # candidate edge up/down/left/right will select
		self.isSourceCandidate = True
		self.edgeDataDict = {}  # 存放需要保存的边用户数据
		self.itemDataDict = {}	# 存放需要保存的点用户数据

		self.itemLruQueue = []
		self.lruMaxLength = 100
		self.isLayoutDirty = False

		self.setItemIndexMethod(QtWidgets.QGraphicsScene.NoIndex)
		self.lock = RecursiveLock()
		self.updateThread = SceneUpdateThread(self, self.lock)
		self.updateThread.start()

		self.cornerItem = []
		self.autoFocus = True
		self.autoFocusToggle = True
		self.selectTimeStamp = 0
		for i in range(4):
			item = QtWidgets.QGraphicsRectItem(0,0,5,5)
			item.setPen(QtGui.QPen(QtGui.QColor(0,0,0,0)))
			item.setBrush(QtGui.QBrush())
			self.cornerItem.append(item)
			self.addItem(item)
		# self.connect(self, QtCore.SIGNAL('selectionChanged()'), self, QtCore.SLOT('onSelectItems()'))
		self.selectionChanged.connect(self.onSelectItems)

	# 添加或修改call graph 

def draw_coded_areas(self):
        """ Draw coded areas with scaling. This coder is shown in dashed rectangles.
        Other coders are shown via dotline rectangles.
        Remove items first, as this is called after a coded area is unmarked. """

        if self.file_ is None:
            return
        for item in self.code_areas:
            if item['id'] == self.file_['id']:
                color = QtGui.QColor('#AA0000')  # Default color
                color = None
                tooltip = ""
                for c in self.codes:
                    if c['cid'] == item['cid']:
                        tooltip = c['name'] + " (" + item['owner'] + ")"
                        tooltip += "\nMemo: " + item['memo']
                        color = QtGui.QColor(c['color'])
                x = item['x1'] * self.scale
                y = item['y1'] * self.scale
                width = item['width'] * self.scale
                height = item['height'] * self.scale
                rect_item = QtWidgets.QGraphicsRectItem(x, y, width, height)
                rect_item.setPen(QtGui.QPen(color, 2, QtCore.Qt.DashLine))
                rect_item.setToolTip(tooltip)
                if item['owner'] == self.app.settings['codername']:
                    self.scene.addItem(rect_item)
                if self.ui.checkBox_show_coders.isChecked() and item['owner'] != self.app.settings['codername']:
                    rect_item.setPen(QtGui.QPen(color, 2, QtCore.Qt.DotLine))
                    self.scene.addItem(rect_item) 

def __init__(self, *args, **kwargs):
        """
        Sets up the graphics view.
        """
        super().__init__(*args, **kwargs)
        self.setObjectName('mini-map-widget')

        layout = QtWidgets.QVBoxLayout(self)
        layout.setContentsMargins(0, 0, 0, 0)
        layout.setSpacing(0)

        # the content is a scene
        self.scene = QtWidgets.QGraphicsScene()

        # tracker rectangle that tracks the view of the map, initially hidden
        self.tracker = QtWidgets.QGraphicsRectItem()
        self.tracker.setCursor(QtCore.Qt.PointingHandCursor)
        self.tracker.setZValue(1000)
        self.tracker.hide()
        self.scene.addItem(self.tracker)

        # the view on the scene (no scroll bars)
        self.view = QtWidgets.QGraphicsView(self.scene)
        self.view.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
        self.view.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
        layout.addWidget(self.view)

        # the width and height (fixed width throughout the game)
        # TODO make this adjustable
        self.view.setFixedWidth(self.VIEW_WIDTH)
        view_height = math.floor(0.6 * self.VIEW_WIDTH)
        self.view.setFixedHeight(view_height)

        # tool bar below the mini map
        self.toolbar = QtWidgets.QToolBar()
        self.toolbar.setIconSize(QtCore.QSize(20, 20))

        # action group (only one of them can be checked at each time)
        action_group = QtWidgets.QActionGroup(self.toolbar)
        # political view in the beginning
        a = qt.create_action(tools.load_ui_icon('icon.mini.political.png'), 'Show political view', action_group,
                             toggle_connection=self.switch_to_political_view, checkable=True)
        self.toolbar.addAction(a)
        # geographical view
        a = qt.create_action(tools.load_ui_icon('icon.mini.geographical.png'), 'Show geographical view', action_group,
                             toggle_connection=self.switch_to_geographical_view, checkable=True)
        self.toolbar.addAction(a)
        self.mode = constants.OverviewMapMode.POLITICAL

        # wrap tool bar into horizontal layout with stretch
        l = QtWidgets.QHBoxLayout()
        l.setContentsMargins(0, 0, 0, 0)
        l.addWidget(self.toolbar)
        l.addStretch()

        # add layout containing tool bar
        layout.addLayout(l)

        # graphics items in scene (except the tracker)
        self.scene_items = [] 

def __init__(self, *args, **kwargs):
        """
        Sets up the graphics view, the toolbar and the tracker rectangle.
        """
        super().__init__(*args, **kwargs)
        self.setObjectName('mini-map-widget')

        layout = QtWidgets.QVBoxLayout(self)
        layout.setContentsMargins(0, 0, 0, 0)
        layout.setSpacing(0)

        # the content is a scene
        self.scene = QtWidgets.QGraphicsScene()

        # tracker rectangle that tracks the view of the map, initially hidden
        self.tracker = QtWidgets.QGraphicsRectItem()
        self.tracker.setCursor(QtCore.Qt.PointingHandCursor)
        self.tracker.setZValue(1000)
        self.tracker.hide()
        self.scene.addItem(self.tracker)

        # the view on the scene (no scroll bars)
        self.view = QtWidgets.QGraphicsView(self.scene)
        self.view.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
        self.view.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
        layout.addWidget(self.view)

        # the width and height (fixed width throughout the game)
        # TODO make this adjustable
        self.view.setFixedWidth(self.VIEW_WIDTH)
        view_height = math.floor(0.6 * self.VIEW_WIDTH)
        self.view.setFixedHeight(view_height)

        # tool bar below the mini map
        self.toolbar = QtWidgets.QToolBar()
        self.toolbar.setIconSize(QtCore.QSize(20, 20))

        # action group (only one of them can be checked at each time)
        action_group = QtWidgets.QActionGroup(self.toolbar)
        # political view in the beginning
        a = qt.create_action(tools.load_ui_icon('icon.mini.political.png'), 'Show political view', action_group,
                             toggle_connection=self.switch_to_political_view, checkable=True)
        self.toolbar.addAction(a)
        # geographical view
        a = qt.create_action(tools.load_ui_icon('icon.mini.geographical.png'), 'Show geographical view', action_group,
                             toggle_connection=self.switch_to_geographical_view, checkable=True)
        self.toolbar.addAction(a)
        self.mode = constants.OverviewMapMode.POLITICAL

        # wrap tool bar into horizontal layout with stretch
        l = QtWidgets.QHBoxLayout()
        l.setContentsMargins(0, 0, 0, 0)
        l.addWidget(self.toolbar)
        l.addStretch()

        # add layout containing tool bar
        layout.addLayout(l)

        # graphics items in scene (except the tracker)
        self.scene_items = [] 

def code_area(self, p1):
        """ Created coded area coordinates from mouse release.
        The point and width and height mush be based on the original image size,
        so add in scale factor. """

        code_ = self.ui.treeWidget.currentItem()
        if code_ is None:
            return
        if code_.text(1)[0:3] == 'cat':
            return
        cid = code_.text(1)[4:]
        x = self.selection.x()
        y = self.selection.y()
        #print("x", x, "y", y, "scale", self.scale)
        width = p1.x() - x
        height = p1.y() - y
        if width < 0:
            x = x + width
            width = abs(width)
        if height < 0:
            y = y + height
            height = abs(height)
        #print("SCALED x", x, "y", y, "w", width, "h", height)
        # outside image area, do not code
        for item in self.scene.items():
            if type(item) == QtWidgets.QGraphicsPixmapItem:
                if x + width > item.boundingRect().width() or y + height > item.boundingRect().height():
                    self.selection = None
                    return

        x_unscaled = x / self.scale
        y_unscaled = y / self.scale
        width_unscaled = width / self.scale
        height_unscaled = height / self.scale
        #print("UNSCALED x", x, "y", y, "w", width, "h", height)
        item = {'imid': None, 'id': self.file_['id'], 'x1': x_unscaled, 'y1': y_unscaled,
        'width': width_unscaled, 'height':height_unscaled, 'owner': self.app.settings['codername'],
         'date': datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S"), 'cid': cid,'memo': ''}
        cur = self.app.conn.cursor()
        cur.execute("insert into code_image (id,x1,y1,width,height,cid,memo,date,owner) values(?,?,?,?,?,?,?,?,?)"
            , (item['id'], item['x1'], item['y1'], item['width'], item['height'], cid, item['memo'],
            item['date'],item['owner']))
        self.app.conn.commit()
        cur.execute("select last_insert_rowid()")
        imid = cur.fetchone()[0]
        item['imid'] = imid
        self.code_areas.append(item)
        rect_item = QtWidgets.QGraphicsRectItem(x, y, width, height)
        color = None
        for i in range(0, len(self.codes)):
            if self.codes[i]['cid'] == int(cid):
                color = QtGui.QColor(self.codes[i]['color'])
        if color is None:
            print("ERROR")
            return
        rect_item.setPen(QtGui.QPen(color, 2, QtCore.Qt.DashLine))
        rect_item.setToolTip(code_.text(0))
        self.scene.addItem(rect_item)
        self.selection = None