Python QPen.setWidth方法代码示例

# 需要导入模块: from AnyQt.QtGui import QPen [as 别名]
# 或者: from AnyQt.QtGui.QPen import setWidth [as 别名]
 def _draw_border(point_1, point_2, border_width, parent):
     pen = QPen(QColor(self.border_color))
     pen.setCosmetic(True)
     pen.setWidth(border_width)
     line = QGraphicsLineItem(QLineF(point_1, point_2), parent)
     line.setPen(pen)
     return line

# 需要导入模块: from AnyQt.QtGui import QPen [as 别名]
# 或者: from AnyQt.QtGui.QPen import setWidth [as 别名]
        def show_pearson(rect, pearson, pen_width):
            """
            Color the given rectangle according to its corresponding
            standardized Pearson residual.

            Args:
                rect (QRect): the rectangle being drawn
                pearson (float): signed standardized pearson residual
                pen_width (int): pen width (bolder pen is used for selection)
            """
            r = rect.rect()
            x, y, w, h = r.x(), r.y(), r.width(), r.height()
            if w == 0 or h == 0:
                return

            r = b = 255
            if pearson > 0:
                r = g = max(255 - 20 * pearson, 55)
            elif pearson < 0:
                b = g = max(255 + 20 * pearson, 55)
            else:
                r = g = b = 224
            rect.setBrush(QBrush(QColor(r, g, b)))
            pen_color = QColor(255 * (r == 255), 255 * (g == 255),
                               255 * (b == 255))
            pen = QPen(pen_color, pen_width)
            rect.setPen(pen)
            if pearson > 0:
                pearson = min(pearson, 10)
                dist = 20 - 1.6 * pearson
            else:
                pearson = max(pearson, -10)
                dist = 20 - 8 * pearson
            pen.setWidth(1)

            def _offseted_line(ax, ay):
                r = QGraphicsLineItem(x + ax, y + ay, x + (ax or w),
                                      y + (ay or h))
                self.canvas.addItem(r)
                r.setPen(pen)

            ax = dist
            while ax < w:
                _offseted_line(ax, 0)
                ax += dist

            ay = dist
            while ay < h:
                _offseted_line(0, ay)
                ay += dist

# 需要导入模块: from AnyQt.QtGui import QPen [as 别名]
# 或者: from AnyQt.QtGui.QPen import setWidth [as 别名]
 def paint(self, painter, option, widget=None):
     # Override the default selected appearance
     if self.isSelected():
         option.state ^= QStyle.State_Selected
         rect = self.rect()
         # this must render before overlay due to order in which it's drawn
         super().paint(painter, option, widget)
         painter.save()
         pen = QPen(QColor(Qt.black))
         pen.setWidth(4)
         pen.setJoinStyle(Qt.MiterJoin)
         painter.setPen(pen)
         painter.drawRect(rect.adjusted(2, 2, -2, -2))
         painter.restore()
     else:
         super().paint(painter, option, widget)

# 需要导入模块: from AnyQt.QtGui import QPen [as 别名]
# 或者: from AnyQt.QtGui.QPen import setWidth [as 别名]
 def hoverLeaveEvent(self, event):
     pen = QPen(self.pen())
     pen.setWidth(2)
     self.setPen(pen)
     return RugItem.hoverLeaveEvent(self, event)

# 需要导入模块: from AnyQt.QtGui import QPen [as 别名]
# 或者: from AnyQt.QtGui.QPen import setWidth [as 别名]
    def replot_experiments(self):
        """Replot the whole quality plot.
        """
        self.scene.clear()
        labels = []

        max_dist = numpy.nanmax(list(filter(None, self.distances)))
        rug_widgets = []

        group_pen = QPen(Qt.black)
        group_pen.setWidth(2)
        group_pen.setCapStyle(Qt.RoundCap)
        background_pen = QPen(QColor(0, 0, 250, 150))
        background_pen.setWidth(1)
        background_pen.setCapStyle(Qt.RoundCap)

        main_widget = QGraphicsWidget()
        layout = QGraphicsGridLayout()
        attributes = self.data.domain.attributes
        if self.data is not None:
            for (group, indices), dist_vec in zip(self.groups, self.distances):
                indices_set = set(indices)
                rug_items = []
                if dist_vec is not None:
                    for i, attr in enumerate(attributes):
                        # Is this a within group distance or background
                        in_group = i in indices_set
                        if in_group:
                            rug_item = ClickableRugItem(dist_vec[i] / max_dist,
                                           1.0, self.on_rug_item_clicked)
                            rug_item.setPen(group_pen)
                            tooltip = experiment_description(attr)
                            rug_item.setToolTip(tooltip)
                            rug_item.group_index = indices.index(i)
                            rug_item.setZValue(rug_item.zValue() + 1)
                        else:
                            rug_item = ClickableRugItem(dist_vec[i] / max_dist,
                                           0.85, self.on_rug_item_clicked)
                            rug_item.setPen(background_pen)
                            tooltip = experiment_description(attr)
                            rug_item.setToolTip(tooltip)

                        rug_item.group = group
                        rug_item.index = i
                        rug_item.in_group = in_group

                        rug_items.append(rug_item)

                rug_widget = RugGraphicsWidget(parent=main_widget)
                rug_widget.set_rug(rug_items)

                rug_widgets.append(rug_widget)

                label = group_label(self.selected_split_by_labels(), group)
                label_item = QGraphicsSimpleTextItem(label, main_widget)
                label_item = GraphicsSimpleTextLayoutItem(label_item, parent=layout)
                label_item.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
                labels.append(label_item)

        for i, (label, rug_w) in enumerate(zip(labels, rug_widgets)):
            layout.addItem(label, i, 0, Qt.AlignVCenter)
            layout.addItem(rug_w, i, 1)
            layout.setRowMaximumHeight(i, 30)

        main_widget.setLayout(layout)
        self.scene.addItem(main_widget)
        self.main_widget = main_widget
        self.rug_widgets = rug_widgets
        self.labels = labels
        self.on_view_resize(self.scene_view.size())

# 需要导入模块: from AnyQt.QtGui import QPen [as 别名]
# 或者: from AnyQt.QtGui.QPen import setWidth [as 别名]
    def _setup_plot(self):
        """Setup the plot with new curve data."""
        assert self.data is not None

        data, domain = self.data, self.data.domain
        if is_discrete(domain.class_var):
            class_col_data, _ = data.get_column_view(domain.class_var)

            group_indices = [np.flatnonzero(class_col_data == i)
                             for i in range(len(domain.class_var.values))]
        else:
            group_indices = [np.arange(len(data))]

        X = np.arange(1, len(domain.attributes)+1)
        groups = []

        for i, indices in enumerate(group_indices):
            if self.classes:
                color = self.class_colors[i]
            else:
                color = QColor(Qt.darkGray)
            group_data = data[indices, :]
            plot_x, plot_y, connect = disconnected_curve_data(group_data.X, x=X)

            color.setAlpha(200)
            lightcolor = QColor(color.lighter(factor=150))
            lightcolor.setAlpha(150)
            pen = QPen(color, 2)
            pen.setCosmetic(True)

            lightpen = QPen(lightcolor, 1)
            lightpen.setCosmetic(True)
            hoverpen = QPen(pen)
            hoverpen.setWidth(2)

            curve = pg.PlotCurveItem(
                x=plot_x, y=plot_y, connect=connect,
                pen=lightpen, symbolSize=2, antialias=True,
            )
            self.graph.addItem(curve)

            hovercurves = []
            for index, profile in zip(indices, group_data.X):
                hcurve = HoverCurve(x=X, y=profile, pen=hoverpen,
                                    antialias=True)
                hcurve.setToolTip('{}'.format(index))
                hcurve._data_index = index
                hovercurves.append(hcurve)
                self.graph.addItem(hcurve)

            mean = np.nanmean(group_data.X, axis=0)

            meancurve = pg.PlotDataItem(
                x=X, y=mean, pen=pen, size=5, symbol="o", pxMode=True,
                symbolSize=5, antialias=True
            )
            hoverpen = QPen(hoverpen)
            hoverpen.setWidth(5)

            hc = HoverCurve(x=X, y=mean, pen=hoverpen, antialias=True)
            hc.setFlag(QGraphicsItem.ItemIsSelectable, False)
            self.graph.addItem(hc)

            self.graph.addItem(meancurve)
            self.legend_items.append(meancurve)
            q1, q2, q3 = np.nanpercentile(group_data.X, [25, 50, 75], axis=0)
            # TODO: implement and use a box plot item
            errorbar = pg.ErrorBarItem(
                x=X, y=mean,
                bottom=np.clip(mean - q1, 0, mean - q1),
                top=np.clip(q3 - mean, 0, q3 - mean),
                beam=0.5
            )
            self.graph.addItem(errorbar)
            groups.append(
                namespace(
                    data=group_data, indices=indices, profiles=curve,
                    hovercurves=hovercurves, mean=meancurve, boxplot=errorbar)
            )

        self.__groups = groups
        self.__update_visibility()
        self.__update_tooltips()