def __initSVGFile(self, filename):
generator = QtSvg.QSvgGenerator()
generator.setFileName(os.path.join(self.__startDir, filename))
generator.setSize(QtCore.QSize(self.__width, self.__height))
generator.setViewBox(QtCore.QRect(0, 0, self.__width, self.__height))
painter = QtGui.QPainter(generator)
painter.setClipRect(QtCore.QRect(0, 0, self.__width, self.__height))
return generator, painter
def update_tooltip(self, gap=5):
nodes = [node() for node in self.children]
n_side = len(nodes)
if n_side > 3:
n_side = max(1, int(n_side**0.5))
x = 0
y = 0
h_max = 0
n = 0
x_max, y_max = 0, 0
positions = []
for node in nodes:
positions.append([x + gap, y + gap])
w, h = node._rect.width() + gap, node._rect.height() + gap
h_max = max(h_max, h)
x += w
n += 1
if n > n_side:
x = 0
y += h_max
h_max = 0
n = 0
x_max = max(x_max, x + w)
y_max = max(y_max, y + h)
if n_side == len(nodes):
x_max -= w
scale = SCALE_TOOLTIP / SCALE_DRAWINGS
buffer = QtCore.QBuffer()
buffer.open(QtCore.QIODevice.WriteOnly)
gen = QtSvg.QSvgGenerator()
gen.setOutputDevice(buffer)
painter = QtGui.QPainter(gen)
painter.scale(scale, scale)
painter.setPen(QtGui.QPen(QtCore.Qt.white, 0))
painter.setBrush(QtGui.QBrush(QtCore.Qt.white))
rect = QtCore.QRectF(0, 0, x_max, y_max)
painter.drawRect(rect)
painter.setPen(QtGui.QPen(QtCore.Qt.black, 0.5))
for i in range(len(nodes)):
x, y = positions[i]
painter.drawPicture(x, y, nodes[i].picture)
painter.drawText(rect, QtCore.Qt.AlignCenter | QtCore.Qt.AlignBottom,
self.label)
painter.end()
self.tool_tip = "<img src=\"data:image/png;base64,%s\">" % (bytes(
buffer.data().toBase64()).decode())
def update_tooltip(self):
buffer = QtCore.QBuffer()
buffer.open(QtCore.QIODevice.WriteOnly)
scale = SCALE_TOOLTIP / SCALE_DRAWINGS
gen = QtSvg.QSvgGenerator()
gen.setOutputDevice(buffer)
painter = QtGui.QPainter(gen)
painter.scale(scale, scale)
rect = self._rect.marginsAdded(QtCore.QMargins(10, 10, 10, 10))
rect = QtCore.QRectF(rect.x(), rect.y(),
rect.width() * 0.8, rect.height())
painter.setPen(QtGui.QPen(QtCore.Qt.white, 0))
painter.setBrush(QtGui.QBrush(QtCore.Qt.white))
painter.drawRect(rect)
painter.setPen(QtGui.QPen(QtCore.Qt.black, 0.5))
painter.drawPicture(0, 0, self.picture)
painter.drawText(rect, QtCore.Qt.AlignCenter | QtCore.Qt.AlignBottom,
self.label)
painter.end()
self.tool_tip = "<img src=\"data:image/png;base64,%s\">" % (bytes(
buffer.data().toBase64()).decode())