def pixmap(self, size, mode, state):
# type: (QSize, QIcon.Mode, QIcon.State) -> QPixmap
if not self.__generator.isValid():
return QPixmap()
dsize = self.__generator.defaultSize() # type: QSize
if not dsize.isNull():
dsize.scale(size, Qt.KeepAspectRatio)
size = dsize
key = "{}.SVGIconEngine/{}/{}x{}".format(__name__, self.__cache_id,
size.width(), size.height())
pm = QPixmapCache.find(key)
if pm is None or pm.isNull():
pm = QPixmap(size)
pm.fill(Qt.transparent)
painter = QPainter(pm)
try:
self.__generator.render(
painter, QRectF(0, 0, size.width(), size.height()))
finally:
painter.end()
QPixmapCache.insert(key, pm)
style = QApplication.style()
if style is not None:
opt = QStyleOption()
opt.palette = QApplication.palette()
pm = style.generatedIconPixmap(mode, pm, opt)
return pm
def paintEvent(self, QPaintEvent):
import math
if self.direction == 'x':
_angle = self.parent.rotationX
_x1 = self.width() / 2
_y1 = self.height() / 2
_x2 = math.cos(math.radians(_angle)) * (self.width() / 2)
_y2 = math.sin(math.radians(_angle)) * (self.width() / 2)
elif self.direction == 'y':
_angle = self.parent.rotationY
_x1 = self.width() / 2
_y1 = self.height() / 2
_x2 = math.cos(math.radians(_angle + 90)) * (self.height() / 2)
_y2 = math.sin(math.radians(_angle + 90)) * (self.height() / 2)
else:
_angle = 0
_x1 = 0
_y1 = 0
_x2 = 0
_y2 = 0
_painter = QPainter(self)
_pm = QPixmap(self.width(), self.height())
_pm_compass = QPixmap(self.compassImage).transformed(QTransform().rotate(self.compassRotation))
_pm_image = QPixmap(self.image).transformed(QTransform().rotate(_angle))
_painter.drawPixmap(0, 0, _pm_compass)
_painter.setPen(QColor(255, 160, 47))
_painter.drawLine(_x1, _y1, _x2, _y2)
_x = (self.width() - _pm_image.width()) / 2
_y = (self.height() - _pm_image.height()) / 2
_painter.drawPixmap(_x, _y, _pm_image)
_painter.end()
def __init__(self, widget, parent=None, name=None):
OWPlot.__init__(self, parent, name, axes=[], widget=widget)
ScaleData.__init__(self)
self.update_antialiasing(False)
self.widget = widget
self.last_selected_curve = None
self.enableGridXB(0)
self.enableGridYL(0)
self.domain_contingencies = None
self.auto_update_axes = 1
self.old_legend_keys = []
self.selection_conditions = {}
self.attributes = []
self.visualized_mid_labels = []
self.attribute_indices = []
self.valid_data = []
self.groups = {}
self.colors = None
self.selected_examples = []
self.unselected_examples = []
self.bottom_pixmap = QPixmap(
gui.resource_filename("icons/upgreenarrow.png"))
self.top_pixmap = QPixmap(
gui.resource_filename("icons/downgreenarrow.png"))
def __init__(self, pixmap=None, parent=None):
super().__init__(parent)
self.setCacheMode(QGraphicsItem.ItemCoordinateCache)
self._pixmap = QPixmap(pixmap) if pixmap is not None else QPixmap()
self._keepAspect = True
self._crop = False
self._subset = True
self.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
def setPathway(self, pathway):
"""
Set pathway
"""
self.pathway = pathway
if pathway:
image_filename = pathway.get_image()
self._pixmap = QPixmap(image_filename)
else:
self._pixmap = QPixmap()
self.setPixmap(self._pixmap)
def __init__(self,
parent: Optional[QGraphicsItem] = None,
pixmap: Optional[QPixmap] = None,
scaleContents=False,
aspectMode=Qt.KeepAspectRatio,
**kwargs) -> None:
self.__scaleContents = scaleContents
self.__aspectMode = aspectMode
self.__pixmap = QPixmap(pixmap) if pixmap is not None else QPixmap()
super().__init__(None, **kwargs)
self.setFlag(QGraphicsWidget.ItemUsesExtendedStyleOption, True)
self.setContentsMargins(0, 0, 0, 0)
if parent is not None:
self.setParentItem(parent)
def decorate_welcome_icon(icon, background_color):
"""Return a `QIcon` with a circle shaped background.
"""
welcome_icon = QIcon()
sizes = [32, 48, 64, 80]
background_color = NAMED_COLORS.get(background_color, background_color)
background_color = QColor(background_color)
grad = radial_gradient(background_color)
for size in sizes:
icon_pixmap = icon.pixmap(5 * size / 8, 5 * size / 8)
icon_size = icon_pixmap.size()
icon_rect = QRect(QPoint(0, 0), icon_size)
pixmap = QPixmap(size, size)
pixmap.fill(QColor(0, 0, 0, 0))
p = QPainter(pixmap)
p.setRenderHint(QPainter.Antialiasing, True)
p.setBrush(QBrush(grad))
p.setPen(Qt.NoPen)
ellipse_rect = QRect(0, 0, size, size)
p.drawEllipse(ellipse_rect)
icon_rect.moveCenter(ellipse_rect.center())
p.drawPixmap(icon_rect.topLeft(), icon_pixmap)
p.end()
welcome_icon.addPixmap(pixmap)
return welcome_icon
def test_splashscreen(self):
splash = pkg_resources.resource_filename(
config.__package__, "icons/orange-canvas-core-splash.svg"
)
w = SplashScreen()
w.setPixmap(QPixmap(splash))
w.setTextRect(QRect(100, 100, 400, 50))
w.show()
def advance_time():
now = datetime.now()
time = now.strftime("%c : %f")
i = now.second % 3
if i == 2:
w.setTextFormat(Qt.RichText)
time = "<i>" + time + "</i>"
else:
w.setTextFormat(Qt.PlainText)
w.showMessage(time, alignment=Qt.AlignCenter)
rect = QRect(100, 100 + i * 20, 400, 50)
w.setTextRect(rect)
self.assertEqual(w.textRect(), rect)
timer = QTimer(w, interval=1)
timer.timeout.connect(advance_time)
timer.start()
self.app.exec_()
def test(self):
img = QImage(100, 100, QImage.Format_ARGB32)
img.fill(Qt.green)
p = QPainter(img)
pix = QPixmap(10, 10)
pix.fill(Qt.red)
frgmts = [
QPainter.PixmapFragment.create(
QPointF(25, 25),
QRectF(0, 0, 10, 10),
5., 5.,
),
QPainter.PixmapFragment.create(
QPointF(75, 75),
QRectF(0, 0, 10, 10),
5., 5.,
)
]
p.drawPixmapFragments(frgmts, pix)
p.end()
self.assertEqual(QColor(img.pixel(10, 10)), QColor(Qt.red))
self.assertEqual(QColor(img.pixel(80, 80)), QColor(Qt.red))
self.assertEqual(QColor(img.pixel(90, 10)), QColor(Qt.green))
self.assertEqual(QColor(img.pixel(10, 90)), QColor(Qt.green))
def shadowTemplatePixmap(color, length):
"""
Returns 1 pixel wide, `length` pixels long linear-gradient.
Args:
color (QColor): shadow color
length (int): length of cast shadow
"""
key = "InnerShadowTemplate " + \
color.name() + " " + \
str(length)
# get cached template
shadowPixmap = QPixmapCache.find(key)
if shadowPixmap:
return shadowPixmap
shadowPixmap = QPixmap(1, length)
shadowPixmap.fill(Qt.transparent)
grad = QLinearGradient(0, 0, 0, length)
grad.setColorAt(0, color)
grad.setColorAt(1, Qt.transparent)
painter = QPainter()
painter.begin(shadowPixmap)
painter.fillRect(shadowPixmap.rect(), grad)
painter.end()
# cache template
QPixmapCache.insert(key, shadowPixmap)
return shadowPixmap
def __shadowPixmapForDpr(self, dpr=1.0):
# type: (float) -> QPixmap
"""
Return a shadow pixmap rendered in `dpr` device pixel ratio.
"""
offset = self.offset()
radius = self.radius()
color = self.color()
fill_color = self.palette().color(QPalette.Window)
rect_size = QSize(int(50 * dpr), int(50 * dpr))
left = top = right = bottom = int(radius * dpr)
# Size of the pixmap.
pixmap_size = QSize(rect_size.width() + left + right,
rect_size.height() + top + bottom)
shadow_rect = QRect(QPoint(left, top) - offset * dpr, rect_size)
pixmap = QPixmap(pixmap_size)
pixmap.fill(Qt.transparent)
pixmap = render_drop_shadow_frame(
pixmap,
QRectF(shadow_rect),
shadow_color=color,
offset=QPointF(offset * dpr),
radius=radius * dpr,
rect_fill_color=fill_color
)
pixmap.setDevicePixelRatio(dpr)
return pixmap
def decorate_welcome_icon(icon, background_color):
# type: (QIcon, Union[QColor, str]) -> QIcon
"""Return a `QIcon` with a circle shaped background.
"""
welcome_icon = QIcon()
sizes = [32, 48, 64, 80, 128, 256]
background_color = NAMED_COLORS.get(background_color, background_color)
background_color = QColor(background_color)
grad = radial_gradient(background_color)
for size in sizes:
icon_size = QSize(int(5 * size / 8), int(5 * size / 8))
icon_rect = QRect(QPoint(0, 0), icon_size)
pixmap = QPixmap(size, size)
pixmap.fill(Qt.transparent)
p = QPainter(pixmap)
p.setRenderHint(QPainter.Antialiasing, True)
p.setBrush(QBrush(grad))
p.setPen(Qt.NoPen)
ellipse_rect = QRect(0, 0, size, size)
p.drawEllipse(ellipse_rect)
icon_rect.moveCenter(ellipse_rect.center())
icon.paint(
p,
icon_rect,
Qt.AlignCenter,
)
p.end()
welcome_icon.addPixmap(pixmap)
return welcome_icon
def splash_screen():
splash_n = random.randint(1, 3)
path = pkg_resources.resource_filename(
__name__, f"icons/orange-splash-screen-{splash_n:02}.png")
pm = QPixmap(path)
version = Config.ApplicationVersion
if version:
version_parsed = LooseVersion(version)
version_comp = version_parsed.version
version = ".".join(map(str, version_comp[:2]))
size = 13
font = QFont("Helvetica")
font.setPixelSize(size)
metrics = QFontMetrics(font)
br = metrics.boundingRect(version)
br.moveTopLeft(QPoint(171, 438))
p = QPainter(pm)
p.setRenderHint(QPainter.Antialiasing)
p.setRenderHint(QPainter.TextAntialiasing)
p.setFont(font)
p.setPen(QColor("#000000"))
p.drawText(br, Qt.AlignLeft, version)
p.end()
return pm, QRect(23, 24, 200, 20)
def splash_screen():
"""
"""
pm = QPixmap(
pkg_resources.resource_filename(__name__,
"icons/orange-splash-screen.png"))
version = QCoreApplication.applicationVersion()
size = 21 if len(version) < 5 else 16
font = QFont("Helvetica")
font.setPixelSize(size)
font.setBold(True)
font.setItalic(True)
font.setLetterSpacing(QFont.AbsoluteSpacing, 2)
metrics = QFontMetrics(font)
br = metrics.boundingRect(version).adjusted(-5, 0, 5, 0)
br.moveCenter(QPoint(436, 224))
p = QPainter(pm)
p.setRenderHint(QPainter.Antialiasing)
p.setRenderHint(QPainter.TextAntialiasing)
p.setFont(font)
p.setPen(QColor("#231F20"))
p.drawText(br, Qt.AlignCenter, version)
p.end()
return pm, QRect(88, 193, 200, 20)
def __updatePixmap(self):
"""
Update the cached shadow pixmap.
"""
rect_size = QSize(50, 50)
left = top = right = bottom = self.radius_
# Size of the pixmap.
pixmap_size = QSize(rect_size.width() + left + right,
rect_size.height() + top + bottom)
shadow_rect = QRect(QPoint(left, top), rect_size)
pixmap = QPixmap(pixmap_size)
pixmap.fill(QColor(0, 0, 0, 0))
rect_fill_color = self.palette().color(QPalette.Window)
pixmap = render_drop_shadow_frame(
pixmap,
QRectF(shadow_rect),
shadow_color=self.color_,
offset=QPointF(0, 0),
radius=self.radius_,
rect_fill_color=rect_fill_color,
)
self.__shadowPixmap = pixmap
self.update()
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.__pixmap = QPixmap()
# Flag indicating if the widget was resized as a result of user
# initiated window resize. When false the widget will automatically
# resize/re-position based on pixmap size.
self.__hasExplicitSize = False
self.__inUpdateWindowGeometry = False
def __shadowPixmap(self):
# type: () -> QPixmap
if self.__cachedShadowPixmap is None \
or self.__cachedShadowPixmap.devicePixelRatioF() \
!= self.devicePixelRatioF():
self.__cachedShadowPixmap = self.__shadowPixmapForDpr(
self.devicePixelRatioF())
return QPixmap(self.__cachedShadowPixmap)
def setPixmap(self, pixmap):
# type: (QPixmap) -> None
self.setAttribute(Qt.WA_TranslucentBackground,
pixmap.hasAlpha() and is_transparency_supported())
self.__pixmap = QPixmap(pixmap)
super().setPixmap(pixmap)
if pixmap.hasAlpha() and not is_transparency_supported():
self.setMask(pixmap.createHeuristicMask())
def setupScene(self):
self.error()
if self.data:
attr = self.stringAttrs[self.smilesAttr]
titleAttr = self.allAttrs[self.titleAttr]
assert self.thumbnailView.count() == 0
size = QSizeF(self.imageSize, self.imageSize)
for i, inst in enumerate(self.data):
if not numpy.isfinite(inst[attr]): # skip missing
continue
smiles = str(inst[attr])
title = str(inst[titleAttr])
thumbnail = GraphicsThumbnailWidget(QPixmap(), title=title)
thumbnail.setThumbnailSize(size)
thumbnail.setToolTip(smiles)
thumbnail.instance = inst
self.thumbnailView.addThumbnail(thumbnail)
if self.check_smiles(smiles):
pixmap = self.pixmap_from_smiles(smiles)
thumbnail.setPixmap(pixmap)
self._successcount += 1
else:
pixmap = QPixmap()
thumbnail.setPixmap(pixmap)
thumbnail.setToolTip(thumbnail.toolTip() +
"\nInvalid SMILES")
self._errcount += 1
future = Future()
future.set_result(pixmap)
future._reply = None
self.items.append(_ImageItem(i, thumbnail, smiles, future))
if any(it.future is not None and not it.future.done()
for it in self.items):
self.info.setText("Retrieving...\n")
else:
self._updateStatus()
def __startInternalDrag(self, frame, hotSpot=None):
drag = QDrag(self)
pixmap = QPixmap(frame.size())
frame.render(pixmap)
transparent = QPixmap(pixmap.size())
transparent.fill(Qt.transparent)
painter = QPainter(transparent)
painter.setOpacity(0.35)
painter.drawPixmap(0, 0, pixmap.width(), pixmap.height(), pixmap)
painter.end()
drag.setPixmap(transparent)
if hotSpot is not None:
drag.setHotSpot(hotSpot)
mime = QMimeData()
mime.setData("application/x-internal-move", b"")
drag.setMimeData(mime)
return drag.exec(Qt.MoveAction)
def palette_pixmap(colors, size):
img = QPixmap(size)
img.fill(Qt.transparent)
painter = QPainter(img)
grad = palette_gradient(colors)
grad.setCoordinateMode(QLinearGradient.ObjectBoundingMode)
painter.setPen(Qt.NoPen)
painter.setBrush(QBrush(grad))
painter.drawRect(0, 0, size.width(), size.height())
painter.end()
return img
def createDiscPalettePixmap(width, height, palette):
p = QPainter()
img = QPixmap(width, height)
p.begin(img)
p.setPen(QPen(Qt.NoPen))
if type(palette) == dict: # if palette is the dict with different
palette = palette[max(palette.keys())]
if len(palette) == 0: return img
rectWidth = width / float(len(palette))
for i, col in enumerate(palette):
p.setBrush(QBrush(QColor(*col)))
p.drawRect(QRectF(i * rectWidth, 0, (i + 1) * rectWidth, height))
return img
def __init__(self,
parent=None,
pixmap=None,
textRect=None,
textFormat=Qt.PlainText,
**kwargs):
super().__init__(parent, **kwargs)
self.__textRect = textRect or QRect()
self.__message = ""
self.__color = Qt.black
self.__alignment = Qt.AlignLeft
self.__textFormat = textFormat
self.__pixmap = QPixmap()
if pixmap is None:
pixmap = QPixmap()
self.setPixmap(pixmap)
self.setAutoFillBackground(False)
# Also set FramelessWindowHint (if not already set)
self.setWindowFlags(self.windowFlags() | Qt.FramelessWindowHint)
def createExContPalettePixmap(width, height, color1, color2, passThroughColors):
p = QPainter()
img = QPixmap(width, height)
p.begin(img)
#p.eraseRect(0, 0, w, h)
p.setPen(QPen(Qt.NoPen))
g = QLinearGradient(0, 0, width, height)
g.setColorAt(0, color1)
g.setColorAt(1, color2)
for i, color in enumerate(passThroughColors):
g.setColorAt(float(i + 1) / (len(passThroughColors) + 1), color)
p.fillRect(img.rect(), QBrush(g))
return img
def pixmap(self, size, mode, state):
# type: (QSize, QIcon.Mode, QIcon.State) -> QPixmap
if not self.__generator.isValid():
return QPixmap()
dsize = self.__generator.defaultSize() # type: QSize
if not dsize.isNull():
dsize.scale(size, Qt.KeepAspectRatio)
size = dsize
pm = QPixmap(size)
pm.fill(Qt.transparent)
painter = QPainter(pm)
try:
self.__generator.render(painter, QRectF(0, 0, size.width(), size.height()))
finally:
painter.end()
style = QApplication.style()
if style is not None:
opt = QStyleOption()
opt.palette = QApplication.palette()
pm = style.generatedIconPixmap(mode, pm, opt)
return pm
def createContPalettePixmap(width, height, color1, color2, passThroughBlack):
p = QPainter()
img = QPixmap(width, height)
p.begin(img)
#p.eraseRect(0, 0, w, h)
p.setPen(QPen(Qt.NoPen))
g = QLinearGradient(0, 0, width, height)
g.setColorAt(0, color1)
g.setColorAt(1, color2)
if passThroughBlack:
g.setColorAt(0.5, Qt.black)
p.fillRect(img.rect(), QBrush(g))
return img
def update_legend(self, colors, labels):
layout = self.legend.layout()
while self.legend_items:
w = self.legend_items.pop()
layout.removeWidget(w)
w.deleteLater()
for row, (color, label) in enumerate(zip(colors, labels)):
icon = QLabel()
p = QPixmap(12, 12)
p.fill(color)
icon.setPixmap(p)
label = QLabel(label)
layout.addWidget(icon, row, 0)
layout.addWidget(label, row, 1, alignment=Qt.AlignLeft)
self.legend_items += (icon, label)
def splash_screen(self):
# type: () -> Tuple[QPixmap, QRect]
"""
Return a splash screen pixmap and an text area within it.
The text area is used for displaying text messages during application
startup.
The default implementation returns a bland rectangle splash screen.
Returns
-------
t : Tuple[QPixmap, QRect]
A QPixmap and a rect area within it.
"""
return QPixmap(), QRect()
def test_graphicspixmapwidget(self):
w = GraphicsPixmapWidget()
self.scene.addItem(w)
w.setPixmap(QPixmap(100, 100))
p = w.pixmap()
self.assertEqual(p.size(), QSize(100, 100))
self.view.grab()
w.setScaleContents(True)
w.setAspectRatioMode(Qt.KeepAspectRatio)
s = w.sizeHint(Qt.PreferredSize)
self.assertEqual(s, QSizeF(100., 100.))
s = w.sizeHint(Qt.PreferredSize, QSizeF(200., -1.))
self.assertEqual(s, QSizeF(200., 200.))
s = w.sizeHint(Qt.PreferredSize, QSizeF(-1., 200.))
self.assertEqual(s, QSizeF(200., 200.))
self.view.grab()
def crosshairs(color, radius=24, circle=False):
radius = max(radius, 16)
pixmap = QPixmap(radius, radius)
pixmap.fill(Qt.transparent)
painter = QPainter()
painter.begin(pixmap)
painter.setRenderHints(QPainter.Antialiasing)
pen = QPen(QBrush(color), 1)
pen.setWidthF(1.5)
painter.setPen(pen)
if circle:
painter.drawEllipse(2, 2, radius - 2, radius - 2)
painter.drawLine(radius / 2, 7, radius / 2, radius / 2 - 7)
painter.drawLine(7, radius / 2, radius / 2 - 7, radius / 2)
painter.end()
return pixmap
