Python QGraphicsTextItem.setFont方法代码示例

# 需要导入模块: from AnyQt.QtWidgets import QGraphicsTextItem [as 别名]
# 或者: from AnyQt.QtWidgets.QGraphicsTextItem import setFont [as 别名]
class LegendItemTitle(QGraphicsWidget):
    """Legend item title - the text displayed in the legend.

    This should only really be used in conjunction with ˙LegendItem˙.

    Parameters
    ----------
    text : str
    parent : QGraphicsItem
    font : QFont
        This

    """
    _size_hint = QSizeF(100, 10)

    def __init__(self, text, parent, font):
        super().__init__(parent)

        self.__text = QGraphicsTextItem(text.title())
        self.__text.setParentItem(self)
        self.__text.setFont(font)
        self._size_hint = QSizeF(self.__text.boundingRect().size())

    def sizeHint(self, size_hint, size_constraint=None, *args, **kwargs):
        return self._size_hint

# 需要导入模块: from AnyQt.QtWidgets import QGraphicsTextItem [as 别名]
# 或者: from AnyQt.QtWidgets.QGraphicsTextItem import setFont [as 别名]
    def __init__(self, name, values, scale, name_offset, offset, get_points,
                 title, get_probabilities):
        super().__init__()
        self.scale = scale
        self.offset = offset
        self.get_points = get_points
        self.min_val = min(values)
        self.max_val = max(values)

        # leading labels
        font = name.document().defaultFont()
        font.setWeight(QFont.Bold)
        name_total = QGraphicsTextItem("Total", self)
        name_total.setFont(font)
        name_total.setPos(name_offset, -25)
        name.setFont(font)
        name.setPos(name_offset, 10)
        name.setParentItem(self)

        # prediction marker
        self.dot = ProbabilitiesDotItem(
            self.DOT_RADIUS, scale, offset, values[0], values[-1],
            title, get_probabilities)
        self.dot.setPos(0, (- self.DOT_RADIUS + self.y_diff) / 2)
        self.dot.setParentItem(self)

        # pylint: disable=unused-variable
        # two lines
        t_line = QGraphicsLineItem(self.min_val * scale + offset, 0,
                                   self.max_val * scale + offset, 0,
                                   self)
        p_line = QGraphicsLineItem(self.min_val * scale + offset, self.y_diff,
                                   self.max_val * scale + offset, self.y_diff,
                                   self)

        # ticks and labels
        old_x_tick = values[0] * scale + offset
        for i, value in enumerate(values[1:]):
            x_tick = value * scale + offset
            x = x_tick - (x_tick - old_x_tick) / 2
            half_tick = QGraphicsLineItem(x, - self.tick_height / 2, x, 0,
                                          self)
            old_x_tick = x_tick
            if i == len(values) - 2:
                break
            text = QGraphicsTextItem(str(abs(value) if value == -0 else value),
                                     self)
            x_text = value * scale - text.boundingRect().width() / 2 + offset
            y_text = - text.boundingRect().height() - self.DOT_RADIUS * 0.7
            text.setPos(x_text, y_text)
            tick = QGraphicsLineItem(x_tick, -self.tick_height, x_tick, 0,
                                     self)

        self.prob_items = [
            (i / 10, QGraphicsTextItem(" " + str(i * 10) + " "),
             QGraphicsLineItem(0, 0, 0, 0)) for i in range(1, 10)]

# 需要导入模块: from AnyQt.QtWidgets import QGraphicsTextItem [as 别名]
# 或者: from AnyQt.QtWidgets.QGraphicsTextItem import setFont [as 别名]
class Marker(orangeqt.PlotItem):
    """
        Displays a text marker on the plot.

        :param text: The text to display. It can be HTML-formatted
        :type tex: str

        :param x: The x coordinate of the marker's position
        :type x: float

        :param y: The y coordinate of the marker's position
        :type y: float

        :param align: The text alignment
        :type align:

        :param bold: If ``True``, the text will be show bold.
        :type bold: int

        :param color: The text color
        :type color: QColor

        :param brushColor: The color of the brush user to paint the background
        :type color: QColor

        :param size: Font size
        :type size: int

        Markers have the QGraphicsItem.ItemIgnoresTransformations flag set by default,
        so text remains the same size when zooming. There is no need to scale the manually.
    """
    def __init__(self, text, x, y, align, bold = 0, color = None, brushColor = None, size=None):
        orangeqt.PlotItem.__init__(self)
        self.setFlag(QGraphicsItem.ItemIgnoresTransformations, True)
        self._item = QGraphicsTextItem(text, parent=self)
        self._data_point = QPointF(x,y)
        f = self._item.font()
        f.setBold(bold)
        if size:
            f.setPointSize(size)
        self._item.setFont(f)
        self._item.setPos(x, y)

    def update_properties(self):
        self._item.setPos(self.graph_transform().map(self._data_point))

# 需要导入模块: from AnyQt.QtWidgets import QGraphicsTextItem [as 别名]
# 或者: from AnyQt.QtWidgets.QGraphicsTextItem import setFont [as 别名]
class OWLegendTitle(QGraphicsObject):
    """
        A legend item that shows ``text`` with a bold font and no symbol.
    """
    def __init__(self, text, parent):
        QGraphicsObject.__init__(self, parent)
        self.text_item = QGraphicsTextItem(text + ':', self)
        f = self.text_item.font()
        f.setBold(True)
        self.text_item.setFont(f)
        self.rect_item = QGraphicsRectItem(self.text_item.boundingRect(), self)
        self.rect_item.setPen(QPen(Qt.NoPen))
        self.rect_item.stackBefore(self.text_item)

    def boundingRect(self):
        return self.text_item.boundingRect()

    def paint(self, painter, option, widget):
        pass

# 需要导入模块: from AnyQt.QtWidgets import QGraphicsTextItem [as 别名]
# 或者: from AnyQt.QtWidgets.QGraphicsTextItem import setFont [as 别名]

#.........这里部分代码省略.........

        """
        # This getter/setter pair override a property from the base class.
        # They should be renamed to e.g. setLinkEnabled/linkEnabled
        self.curveItem.setLinkEnabled(enabled)

    def isEnabled(self):
        return self.curveItem.isLinkEnabled()

    def setDynamicEnabled(self, enabled):
        """
        Set the link's dynamic enabled state.

        If the link is `dynamic` it will be rendered in red/green color
        respectively depending on the state of the dynamic enabled state.

        """
        if self.__dynamicEnabled != enabled:
            self.__dynamicEnabled = enabled
            if self.__dynamic:
                self.__updatePen()

    def isDynamicEnabled(self):
        """
        Is the link dynamic enabled.
        """
        return self.__dynamicEnabled

    def setDynamic(self, dynamic):
        """
        Mark the link as dynamic (i.e. it responds to
        :func:`setDynamicEnabled`).

        """
        if self.__dynamic != dynamic:
            self.__dynamic = dynamic
            self.__updatePen()

    def isDynamic(self):
        """
        Is the link dynamic.
        """
        return self.__dynamic

    def setRuntimeState(self, state):
        """
        Style the link appropriate to the LinkItem.State

        Parameters
        ----------
        state : LinkItem.State
        """
        if self.__state != state:
            self.__state = state

            if state & LinkItem.Pending:
                self.sinkIndicator.setBrush(QBrush(Qt.red))
            else:
                self.sinkIndicator.setBrush(QBrush(QColor("#9CACB4")))
            self.__updatePen()

    def runtimeState(self):
        return self.__state

    def __updatePen(self):
        self.prepareGeometryChange()
        self.__boundingRect = None
        if self.__dynamic:
            if self.__dynamicEnabled:
                color = QColor(0, 150, 0, 150)
            else:
                color = QColor(150, 0, 0, 150)

            normal = QPen(QBrush(color), 2.0)
            hover = QPen(QBrush(color.darker(120)), 2.1)
        else:
            normal = QPen(QBrush(QColor("#9CACB4")), 2.0)
            hover = QPen(QBrush(QColor("#7D7D7D")), 2.1)

        if self.__state & LinkItem.Empty:
            pen_style = Qt.DashLine
        else:
            pen_style = Qt.SolidLine

        normal.setStyle(pen_style)
        hover.setStyle(pen_style)

        if self.hover:
            pen = hover
        else:
            pen = normal

        self.curveItem.setPen(pen)

    def __updatePalette(self):
        self.linkTextItem.setDefaultTextColor(
            self.palette().color(QPalette.Text))

    def __updateFont(self):
        self.linkTextItem.setFont(self.font())