class Spinner(QSvgWidget):
icon_file = QtDynamicProperty('icon_file', type=unicode)
icon_size = QtDynamicProperty('icon_size', type=QSize)
icon_crop = QtDynamicProperty('icon_crop', type=int)
def __init__(self, parent=None, icon='icons/spinner.svg'):
super(Spinner, self).__init__(parent)
self._original_viewbox = QRectF()
self.icon_crop = 0
self.icon_size = None
self.icon_file = Resources.get(icon)
def load(self, svg):
super(Spinner, self).load(svg)
self._original_viewbox = self.renderer().viewBoxF()
self._update_viewbox(self.size())
def event(self, event):
if event.type() == QEvent.DynamicPropertyChange:
if event.propertyName() == 'icon_crop':
self._update_viewbox(self.size())
elif event.propertyName() == 'icon_file':
self.load(self.icon_file)
elif event.propertyName() == 'icon_size':
self.updateGeometry()
return super(Spinner, self).event(event)
def resizeEvent(self, event):
super(Spinner, self).resizeEvent(event)
self._update_viewbox(event.size())
def sizeHint(self):
return self.icon_size or super(Spinner, self).sizeHint()
def _update_viewbox(self, size):
if self._original_viewbox.isEmpty() or size.isEmpty():
return
if self.icon_crop >= 0:
adjustment = self.icon_crop
else:
adjustment = self._original_viewbox.width() * self.icon_crop / (
self._original_viewbox.width() + 2 * self.icon_crop
) # (w - w * w/(w+2b))/2 = wb/(w+2b)
viewbox = self._original_viewbox.adjusted(adjustment, adjustment,
-adjustment, -adjustment)
width = size.width()
height = size.height()
if height >= width:
new_viewbox = QRectF(
viewbox.x(),
viewbox.y() + viewbox.height() / 2 * (1 - height / width),
viewbox.width(),
viewbox.height() * height / width)
else:
new_viewbox = QRectF(
viewbox.x() + viewbox.width() / 2 * (1 - width / height),
viewbox.y(),
viewbox.width() * width / height, viewbox.height())
self.renderer().setViewBox(new_viewbox)
class Spinner(QSvgWidget):
icon_file = QtDynamicProperty('icon_file', type=unicode)
icon_size = QtDynamicProperty('icon_size', type=QSize)
icon_crop = QtDynamicProperty('icon_crop', type=int)
def __init__(self, parent=None, icon='icons/spinner.svg'):
super(Spinner, self).__init__(parent)
self._original_viewbox = QRectF()
self.icon_crop = 0
self.icon_size = None
self.icon_file = Resources.get(icon)
def load(self, svg):
super(Spinner, self).load(svg)
self._original_viewbox = self.renderer().viewBoxF()
self._update_viewbox(self.size())
def event(self, event):
if event.type() == QEvent.DynamicPropertyChange:
if event.propertyName() == 'icon_crop':
self._update_viewbox(self.size())
elif event.propertyName() == 'icon_file':
self.load(self.icon_file)
elif event.propertyName() == 'icon_size':
self.updateGeometry()
return super(Spinner, self).event(event)
def resizeEvent(self, event):
super(Spinner, self).resizeEvent(event)
self._update_viewbox(event.size())
def sizeHint(self):
return self.icon_size or super(Spinner, self).sizeHint()
def _update_viewbox(self, size):
if self._original_viewbox.isEmpty() or size.isEmpty():
return
if self.icon_crop >= 0:
adjustment = self.icon_crop
else:
adjustment = self._original_viewbox.width() * self.icon_crop / (self._original_viewbox.width() + 2*self.icon_crop) # (w - w * w/(w+2b))/2 = wb/(w+2b)
viewbox = self._original_viewbox.adjusted(adjustment, adjustment, -adjustment, -adjustment)
width = size.width()
height = size.height()
if height >= width:
new_viewbox = QRectF(viewbox.x(), viewbox.y() + viewbox.height()/2 * (1 - height/width), viewbox.width(), viewbox.height() * height/width)
else:
new_viewbox = QRectF(viewbox.x() + viewbox.width()/2 * (1 - width/height), viewbox.y(), viewbox.width() * width/height, viewbox.height())
self.renderer().setViewBox(new_viewbox)
def __updateView(self, view: QGraphicsView, rect: QRectF) -> None:
view.setSceneRect(rect)
view.setFixedHeight(int(math.ceil(rect.height())))
container = view.parent()
if rect.isEmpty():
container.setVisible(False)
return
# map the rect to (main) viewport coordinates
viewrect = self.mapFromScene(rect).boundingRect()
viewportrect = self.viewport().rect()
visible = not (viewrect.top() >= viewportrect.top()
and viewrect.bottom() <= viewportrect.bottom())
container.setVisible(visible)
# force immediate layout of the container overlay
QCoreApplication.sendEvent(container, QEvent(QEvent.LayoutRequest))
def drawTileSelection(self, painter, region, color, exposed):
for r in region.rects():
toFill = QRectF(self.boundingRect(r)).intersected(exposed)
if (not toFill.isEmpty()):
painter.fillRect(toFill, color)
def drawTileSelection(self, painter, region, color, exposed):
for r in region.rects():
toFill = QRectF(self.boundingRect(r)).intersected(exposed)
if (not toFill.isEmpty()):
painter.fillRect(toFill, color)
