def showMessage(self, message, alignment=Qt.AlignLeft, color=Qt.black):
"""
Show the `message` with `color` and `alignment`.
"""
# Need to store all this arguments for drawContents (no access
# methods)
self.__alignment = alignment
self.__color = color
self.__message = message
QSplashScreen.showMessage(self, message, alignment, color)
QApplication.instance().processEvents()
def showMessage(self, message, alignment=Qt.AlignLeft, color=Qt.black):
"""
Show the `message` with `color` and `alignment`.
"""
# Need to store all this arguments for drawContents (no access
# methods)
self.__alignment = alignment
self.__color = color
self.__message = message
QSplashScreen.showMessage(self, message, alignment, color)
QApplication.instance().processEvents()
def __init__(self, parent=None, icon=QIcon(), iconSize=QSize(), **kwargs):
# type: (Optional[QGraphicsItem], QIcon, QSize, Any) -> None
super().__init__(parent, **kwargs)
self.setFlag(QGraphicsItem.ItemUsesExtendedStyleOption, True)
if icon is None:
icon = QIcon()
if iconSize is None or iconSize.isNull():
style = QApplication.instance().style()
size = style.pixelMetric(style.PM_LargeIconSize)
iconSize = QSize(size, size)
self.__transformationMode = Qt.SmoothTransformation
self.__iconSize = QSize(iconSize)
self.__icon = QIcon(icon)
self.anim = QPropertyAnimation(self, b"opacity")
self.anim.setDuration(350)
self.anim.setStartValue(1)
self.anim.setKeyValueAt(0.5, 0)
self.anim.setEndValue(1)
self.anim.setEasingCurve(QEasingCurve.OutQuad)
self.anim.setLoopCount(5)
def mouseMoveEvent(self, event):
if event.buttons() & Qt.LeftButton:
downPos = event.buttonDownPos(Qt.LeftButton)
if not self.__tmpLine and self.__dragStartItem and \
(downPos - event.pos()).manhattanLength() > \
QApplication.instance().startDragDistance():
# Start a line drag
line = QGraphicsLineItem(self)
start = self.__dragStartItem.boundingRect().center()
start = self.mapFromItem(self.__dragStartItem, start)
line.setLine(start.x(), start.y(),
event.pos().x(),
event.pos().y())
pen = QPen(self.palette().color(QPalette.Foreground), 4)
pen.setCapStyle(Qt.RoundCap)
line.setPen(pen)
line.show()
self.__tmpLine = line
if self.__tmpLine:
# Update the temp line
line = self.__tmpLine.line()
line.setP2(event.pos())
self.__tmpLine.setLine(line)
QGraphicsWidget.mouseMoveEvent(self, event)
def add_task_to_dispose_queue(task: TaskState):
# transfer ownership of task to Qt, and delete it after completion
# all other signals from task should be disconnected.
assert task.parent() is None
app = QApplication.instance()
task.setParent(app)
task.watcher.finished.connect(task.deleteLater)
def __init__(self, parent=None, icon=None, iconSize=None, **kwargs):
QGraphicsItem.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsItem.ItemUsesExtendedStyleOption, True)
if icon is None:
icon = QIcon()
if iconSize is None:
style = QApplication.instance().style()
size = style.pixelMetric(style.PM_LargeIconSize)
iconSize = QSize(size, size)
self.__transformationMode = Qt.SmoothTransformation
self.__iconSize = QSize(iconSize)
self.__icon = QIcon(icon)
self._opacity = 1
self.anim = QPropertyAnimation(self, b"opacity")
self.anim.setDuration(350)
self.anim.setStartValue(1)
self.anim.setKeyValueAt(0.5, 0)
self.anim.setEndValue(1)
self.anim.setEasingCurve(QEasingCurve.OutQuad)
self.anim.setLoopCount(5)
def paint(self, painter, option, index):
if option.widget is not None:
style = option.widget.style()
else:
style = QApplication.instance().style()
style.drawPrimitive(QStyle.PE_PanelItemViewRow, option, painter,
option.widget)
style.drawPrimitive(QStyle.PE_PanelItemViewItem, option, painter,
option.widget)
rect = option.rect
val = index.data(Qt.DisplayRole)
if isinstance(val, float):
if np.isfinite(val):
minv, maxv = self.scale
val = (val - minv) / (maxv - minv)
rect = rect.adjusted(1, 1,
-int(rect.width() * (1.0 - val)) - 2, -2)
else:
rect = QRect()
painter.save()
if option.state & QStyle.State_Selected:
painter.setOpacity(0.75)
painter.setBrush(self.brush)
painter.drawRect(rect)
painter.restore()
def available_font_families() -> List:
"""
Function returns list of available font families.
Can be used to instantiate font combo boxes.
Returns
-------
fonts: list
List of available font families.
"""
if not QApplication.instance():
_ = QApplication(sys.argv)
fonts = QFontDatabase().families()
default = fonts.pop(fonts.index(default_font_family()))
defaults = [default]
guessed_name = default.split()[0]
i = 0
while i < len(fonts):
if fonts[i].startswith(guessed_name):
defaults.append(fonts.pop(i))
else:
i += 1
return FontList(defaults + [""] +
sorted(fonts, key=lambda s: s.replace(".", "")))
def mouseMoveEvent(self, event):
if event.buttons() & Qt.LeftButton:
downPos = event.buttonDownPos(Qt.LeftButton)
if not self.__tmpLine and self.__dragStartItem and \
(downPos - event.pos()).manhattanLength() > \
QApplication.instance().startDragDistance():
# Start a line drag
line = QGraphicsLineItem(self)
start = self.__dragStartItem.boundingRect().center()
start = self.mapFromItem(self.__dragStartItem, start)
line.setLine(start.x(), start.y(),
event.pos().x(), event.pos().y())
pen = QPen(Qt.black, 4)
pen.setCapStyle(Qt.RoundCap)
line.setPen(pen)
line.show()
self.__tmpLine = line
if self.__tmpLine:
# Update the temp line
line = self.__tmpLine.line()
line.setP2(event.pos())
self.__tmpLine.setLine(line)
QGraphicsWidget.mouseMoveEvent(self, event)
def set_instance(report):
warnings.warn(
"OWReport.set_instance is deprecated",
DeprecationWarning, stacklevel=2
)
app_inst = QApplication.instance()
app_inst._report_window = report
def set_instance(report):
warnings.warn(
"OWReport.set_instance is deprecated",
DeprecationWarning, stacklevel=2
)
app_inst = QApplication.instance()
app_inst._report_window = report
def paint(self, painter, option, index):
if option.widget is not None:
style = option.widget.style()
else:
style = QApplication.instance().style()
style.drawPrimitive(
QStyle.PE_PanelItemViewRow, option, painter, option.widget)
style.drawPrimitive(
QStyle.PE_PanelItemViewItem, option, painter, option.widget)
rect = option.rect
val = index.data(Qt.DisplayRole)
if isinstance(val, float):
if np.isfinite(val):
minv, maxv = self.scale
val = (val - minv) / (maxv - minv)
rect = rect.adjusted(
1, 1, - int(rect.width() * (1.0 - val)) - 2, -2)
else:
rect = QRect()
painter.save()
if option.state & QStyle.State_Selected:
painter.setOpacity(0.75)
painter.setBrush(self.brush)
painter.drawRect(rect)
painter.restore()
def standard_icon(standard_pixmap):
"""
Return return the application style's standard icon for a
`QStyle.StandardPixmap`.
"""
style = QApplication.instance().style()
return style.standardIcon(standard_pixmap)
def get_instance():
app_inst = QApplication.instance()
if not hasattr(app_inst, "_report_window"):
report = OWReport()
app_inst._report_window = report
app_inst.sendPostedEvents(report, 0)
app_inst.aboutToQuit.connect(report.deleteLater)
return app_inst._report_window
def get_instance():
app_inst = QApplication.instance()
if not hasattr(app_inst, "_report_window"):
report = OWReport()
app_inst._report_window = report
app_inst.sendPostedEvents(report, 0)
app_inst.aboutToQuit.connect(report.deleteLater)
return app_inst._report_window
def standard_icon(standard_pixmap):
"""
Return return the application style's standard icon for a
`QStyle.StandardPixmap`.
"""
style = QApplication.instance().style()
return style.standardIcon(standard_pixmap)
def get_instance():
warnings.warn("OWReport.get_instance is deprecated",
DeprecationWarning,
stacklevel=2)
app_inst = QApplication.instance()
if not hasattr(app_inst, "_report_window"):
report = OWReport()
app_inst._report_window = report
return app_inst._report_window
def get_instance():
warnings.warn(
"OWReport.get_instance is deprecated",
DeprecationWarning, stacklevel=2
)
app_inst = QApplication.instance()
if not hasattr(app_inst, "_report_window"):
report = OWReport()
app_inst._report_window = report
return app_inst._report_window
def default_font_size() -> int:
"""
Function returns default font size in points used in Qt application.
Can be used to instantiate initial dialog state.
Returns
-------
size: int
Default font size in points.
"""
if not QApplication.instance():
_ = QApplication(sys.argv)
return QFont().pointSize()
def default_font_family() -> str:
"""
Function returns default font family used in Qt application.
Can be used to instantiate initial dialog state.
Returns
-------
font: str
Default font family.
"""
if not QApplication.instance():
_ = QApplication(sys.argv)
return QFont().family()
def available_font_families() -> List:
"""
Function returns list of available font families.
Can be used to instantiate font combo boxes.
Returns
-------
fonts: list
List of available font families.
"""
if not QApplication.instance():
_ = QApplication(sys.argv)
return QFontDatabase().families()
def mouseMoveEvent(self, event):
if event.buttons() & Qt.LeftButton:
if self.annotation_item is None and \
(self.down_pos - event.scenePos()).manhattanLength() > \
QApplication.instance().startDragDistance():
rect = QRectF(self.down_pos, event.scenePos()).normalized()
self.createNewAnnotation(rect)
if self.annotation_item is not None:
rect = QRectF(self.down_pos, event.scenePos()).normalized()
self.control.setRect(rect)
return True
def __init__(self, parent=None):
QObject.__init__(self, parent)
assert QThread.currentThread() is QApplication.instance().thread()
netmanager = self._NETMANAGER_REF and self._NETMANAGER_REF()
if netmanager is None:
netmanager = QNetworkAccessManager()
cache = QNetworkDiskCache()
cache.setCacheDirectory(
os.path.join(data_dir(), "geo", __name__ + ".GeoMap.Cache"))
netmanager.setCache(cache)
ImageLoader._NETMANAGER_REF = weakref.ref(netmanager)
self._netmanager = netmanager
def mouseMoveEvent(self, event):
if event.buttons() & Qt.LeftButton:
if self.annotation_item is None and \
(self.down_pos - event.scenePos()).manhattanLength() > \
QApplication.instance().startDragDistance():
rect = QRectF(self.down_pos, event.scenePos()).normalized()
self.createNewAnnotation(rect)
if self.annotation_item is not None:
rect = QRectF(self.down_pos, event.scenePos()).normalized()
self.control.setRect(rect)
return True
def test_show_tip(self):
w = QWidget()
show_tip(w, QPoint(100, 100), "Ha Ha")
app = QApplication.instance()
windows = app.topLevelWidgets()
label = [tl for tl in windows
if tl.parent() is w and tl.objectName() == "tip-label"][0]
self.assertTrue(label.isVisible())
self.assertTrue(label.text() == "Ha Ha")
show_tip(w, QPoint(100, 100), "Ha")
self.assertTrue(label.text() == "Ha")
show_tip(w, QPoint(100, 100), "")
self.assertFalse(label.isVisible())
def mouseMoveEvent(self, event):
if event.buttons() & Qt.LeftButton:
downPos = event.buttonDownPos(Qt.LeftButton)
if not self.__tmpLine and self.__dragStartItem and \
(downPos - event.pos()).manhattanLength() > \
QApplication.instance().startDragDistance():
# Start a line drag
line = LinkLineItem(self)
start = self.__dragStartItem.boundingRect().center()
start = self.mapFromItem(self.__dragStartItem, start)
eventPos = event.pos()
line.setLine(start.x(), start.y(), eventPos.x(), eventPos.y())
pen = QPen(self.palette().color(QPalette.Foreground), 4)
pen.setCapStyle(Qt.RoundCap)
line.setPen(pen)
line.show()
self.__tmpLine = line
if self.__dragStartItem in self.sourceNodeWidget.channelAnchors:
for anchor in self.sinkNodeWidget.channelAnchors:
self.__updateAnchorState(anchor,
[self.__dragStartItem])
else:
for anchor in self.sourceNodeWidget.channelAnchors:
self.__updateAnchorState(anchor,
[self.__dragStartItem])
if self.__tmpLine:
# Update the temp line
line = self.__tmpLine.line()
maybe_anchor = find_item_at(self.scene(),
event.scenePos(),
type=ChannelAnchor)
# If hovering over anchor
if maybe_anchor is not None and maybe_anchor.isEnabled():
target_pos = maybe_anchor.boundingRect().center()
target_pos = self.mapFromItem(maybe_anchor, target_pos)
line.setP2(target_pos)
else:
target_pos = event.pos()
line.setP2(target_pos)
self.__tmpLine.setLine(line)
super().mouseMoveEvent(event)
def __init__(self, parent=None):
QObject.__init__(self, parent)
assert QThread.currentThread() is QApplication.instance().thread()
netmanager = self._NETMANAGER_REF and self._NETMANAGER_REF()
if netmanager is None:
netmanager = QNetworkAccessManager()
cache = QNetworkDiskCache()
cache.setCacheDirectory(
os.path.join(settings.widget_settings_dir(),
__name__ + ".ImageLoader.Cache")
)
netmanager.setCache(cache)
ImageLoader._NETMANAGER_REF = weakref.ref(netmanager)
self._netmanager = netmanager
def __init__(self, parent=None, icon=None, iconSize=None, **kwargs):
QGraphicsItem.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsItem.ItemUsesExtendedStyleOption, True)
if icon is None:
icon = QIcon()
if iconSize is None:
style = QApplication.instance().style()
size = style.pixelMetric(style.PM_LargeIconSize)
iconSize = QSize(size, size)
self.__transformationMode = Qt.SmoothTransformation
self.__iconSize = QSize(iconSize)
self.__icon = QIcon(icon)
def __init__(self, parent=None, icon=None, iconSize=None, **kwargs):
QGraphicsItem.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsItem.ItemUsesExtendedStyleOption, True)
if icon is None:
icon = QIcon()
if iconSize is None:
style = QApplication.instance().style()
size = style.pixelMetric(style.PM_LargeIconSize)
iconSize = QSize(size, size)
self.__transformationMode = Qt.SmoothTransformation
self.__iconSize = QSize(iconSize)
self.__icon = QIcon(icon)
def mouseMoveEvent(self, event):
if event.buttons() & Qt.LeftButton:
downPos = event.buttonDownPos(Qt.LeftButton)
if not self.__tmpLine and self.__dragStartItem and \
(downPos - event.pos()).manhattanLength() > \
QApplication.instance().startDragDistance():
# Start a line drag
line = LinkLineItem(self)
start = self.__dragStartItem.boundingRect().center()
start = self.mapFromItem(self.__dragStartItem, start)
eventPos = event.pos()
line.setLine(start.x(), start.y(), eventPos.x(), eventPos.y())
pen = QPen(self.palette().color(QPalette.Foreground), 4)
pen.setCapStyle(Qt.RoundCap)
line.setPen(pen)
line.show()
self.__tmpLine = line
if self.__dragStartItem in self.sourceNodeWidget.channelAnchors:
for anchor in self.sinkNodeWidget.channelAnchors:
self.__updateAnchorState(anchor, [self.__dragStartItem])
else:
for anchor in self.sourceNodeWidget.channelAnchors:
self.__updateAnchorState(anchor, [self.__dragStartItem])
if self.__tmpLine:
# Update the temp line
line = self.__tmpLine.line()
maybe_anchor = find_item_at(self.scene(), event.scenePos(),
type=ChannelAnchor)
# If hovering over anchor
if maybe_anchor is not None and maybe_anchor.isEnabled():
target_pos = maybe_anchor.boundingRect().center()
target_pos = self.mapFromItem(maybe_anchor, target_pos)
line.setP2(target_pos)
else:
target_pos = event.pos()
line.setP2(target_pos)
self.__tmpLine.setLine(line)
QGraphicsWidget.mouseMoveEvent(self, event)
def _set_message_bar(self, group, text=None, tooltip=None):
self._check_has_message_bar()
current_height = self.height()
style = QApplication.instance().style()
self.message_icon.setPixmap(
style.standardIcon(group.bar_icon).pixmap(14, 14))
self.message_bar.setStyleSheet(
"QWidget {{ background-color: {}; color: black;"
"padding: 3px; padding-left: 6px; vertical-align: center }}\n"
"QToolTip {{ background-color: white; }}".
format(group.bar_background))
self.message_label.setText(text)
self.message_bar.setToolTip(tooltip)
if self.message_bar.isHidden():
self.message_bar.setVisible(True)
new_height = current_height + self.message_bar.height()
self.resize(self.width(), new_height)
def _makeMatchSelection(self, block, columnIndex, matched):
"""Make matched or unmatched QTextEdit.ExtraSelection
"""
selection = QTextEdit.ExtraSelection()
darkMode = QApplication.instance().property('darkMode')
if matched:
fgColor = self.MATCHED_COLOR
else:
fgColor = self.UNMATCHED_COLOR
selection.format.setForeground(fgColor)
# repaint hack
selection.format.setBackground(
Qt.white if not darkMode else QColor('#111111'))
selection.cursor = QTextCursor(block)
selection.cursor.setPosition(block.position() + columnIndex)
selection.cursor.movePosition(QTextCursor.Right,
QTextCursor.KeepAnchor)
return selection
def _updateFontSize(self):
crect = self.contentsRect()
if self.orientation() == Qt.Vertical:
h = crect.height()
else:
h = crect.width()
n = self.count()
if n == 0:
return
if self.scene() is not None:
maxfontsize = self.scene().font().pointSize()
else:
maxfontsize = QApplication.instance().font().pointSize()
lineheight = max(1., h / n)
fontsize = min(self._point_size(lineheight), maxfontsize)
font_ = QFont()
font_.setPointSize(fontsize)
self.setFont(font_)
def mouseMoveEvent(self, event):
if event.buttons() & Qt.LeftButton:
if self.arrow_item is None and \
(self.down_pos - event.scenePos()).manhattanLength() > \
QApplication.instance().startDragDistance():
annot = scheme.SchemeArrowAnnotation(
point_to_tuple(self.down_pos),
point_to_tuple(event.scenePos()))
annot.set_color(self.color)
item = self.scene.add_annotation(annot)
self.arrow_item = item
self.annotation = annot
if self.arrow_item is not None:
p1, p2 = map(self.arrow_item.mapFromScene,
(self.down_pos, event.scenePos()))
self.arrow_item.setLine(QLineF(p1, p2))
event.accept()
return True
def setUpClass(cls):
"""Prepare for test execution.
Ensure that a (single copy of) QApplication has been created
"""
global app
if app is None:
app = QApplication.instance()
if app is None:
app = QApplication(["-", "-widgetcount"])
# Disable App Nap on macOS (see
# https://codereview.qt-project.org/c/qt/qtbase/+/202515 for more)
if sys.platform == "darwin":
try:
import appnope
except ImportError:
pass
else:
appnope.nope()
cls.tear_down_stack = ExitStack()
super().setUpClass()
def configureStyle():
from orangecanvas import styles
args = CanvasApplication.__args
settings = QSettings()
settings.beginGroup("application-style")
name = settings.value("style-name", "", type=str)
if args is not None and args.style:
# command line params take precedence
name = args.style
if name != "":
inst = QApplication.instance()
if inst is not None:
if inst.style().objectName().lower() != name.lower():
QApplication.setStyle(name)
theme = settings.value("palette", "", type=str)
if args is not None and args.colortheme:
theme = args.colortheme
if theme and theme in styles.colorthemes:
palette = styles.colorthemes[theme]()
QApplication.setPalette(palette)
def mouseMoveEvent(self, event):
if event.buttons() & Qt.LeftButton:
if self.arrow_item is None and \
(self.down_pos - event.scenePos()).manhattanLength() > \
QApplication.instance().startDragDistance():
annot = scheme.SchemeArrowAnnotation(
point_to_tuple(self.down_pos),
point_to_tuple(event.scenePos())
)
annot.set_color(self.color)
item = self.scene.add_annotation(annot)
self.arrow_item = item
self.annotation = annot
if self.arrow_item is not None:
p1, p2 = map(self.arrow_item.mapFromScene,
(self.down_pos, event.scenePos()))
self.arrow_item.setLine(QLineF(p1, p2))
event.accept()
return True
def _updateFontSize(self):
crect = self.contentsRect()
if self.orientation == Qt.Vertical:
h = crect.height()
else:
h = crect.width()
n = len(getattr(self, "label_items", []))
if n == 0:
return
if self.scene() is not None:
maxfontsize = self.scene().font().pointSize()
else:
maxfontsize = QApplication.instance().font().pointSize()
lineheight = max(1, h / n)
fontsize = min(self._point_size(lineheight), maxfontsize)
font = self.font()
font.setPointSize(fontsize)
self.setFont(font)
self.layout().invalidate()
self.layout().activate()
def message_icon(message, style=None):
# type: (Message, Optional[QStyle]) -> QIcon
"""
Return the resolved icon for the message.
If `message.icon` is a valid icon then it is used. Otherwise the
appropriate style icon is used based on the `message.severity`
Parameters
----------
message : Message
style : Optional[QStyle]
Returns
-------
icon : QIcon
"""
if style is None and QApplication.instance() is not None:
style = QApplication.style()
if message.icon.isNull():
icon = style.standardIcon(standard_pixmap(message.severity))
else:
icon = message.icon
return icon
def message_icon(message, style=None):
# type: (Message, Optional[QStyle]) -> QIcon
"""
Return the resolved icon for the message.
If `message.icon` is a valid icon then it is used. Otherwise the
appropriate style icon is used based on the `message.severity`
Parameters
----------
message : Message
style : Optional[QStyle]
Returns
-------
icon : QIcon
"""
if style is None and QApplication.instance() is not None:
style = QApplication.style()
if message.icon.isNull():
icon = style.standardIcon(standard_pixmap(message.severity))
else:
icon = message.icon
return icon
def _updateFontSize(self):
crect = self.contentsRect()
if self.orientation == Qt.Vertical:
h = crect.height()
else:
h = crect.width()
n = len(getattr(self, "label_items", []))
if n == 0:
return
if self.scene() is not None:
maxfontsize = self.scene().font().pointSize()
else:
maxfontsize = QApplication.instance().font().pointSize()
lineheight = max(1, h / n)
fontsize = min(self._point_size(lineheight), maxfontsize)
font = self.font()
font.setPointSize(fontsize)
self.setFont(font)
self.layout().invalidate()
self.layout().activate()
def __init__(self, widget=None):
self.widget = widget
if widget is None:
self.style = QApplication.instance().style()
else:
self.style = widget.style()
def setUp(self):
from AnyQt.QtWidgets import QApplication
app = QApplication.instance()
if app is None:
app = QApplication([])
self.app = app
def setUpClass(cls):
app = QApplication.instance()
if app is None:
app = QApplication([])
cls.app = app
def get_instance():
app_inst = QApplication.instance()
if not hasattr(app_inst, "_report_window"):
report = OWReport()
app_inst._report_window = report
return app_inst._report_window
def set_instance(report):
app_inst = QApplication.instance()
app_inst._report_window = report
def __init__(self, widget=None):
self.widget = widget
if widget is None:
self.style = QApplication.instance().style()
else:
self.style = widget.style()
def set_instance(report):
app_inst = QApplication.instance()
app_inst._report_window = report
def setUpClass(cls):
super().setUpClass()
app = QApplication.instance()
if app is None:
app = QApplication([])
cls.app = app
def get_instance():
app_inst = QApplication.instance()
if not hasattr(app_inst, "_report_window"):
report = OWReport()
app_inst._report_window = report
return app_inst._report_window