def paint(self, painter, option, widget=None):
"""QGraphicsRectItem virtual
"""
# TODO LH Is there a way to clip to overlapping
# QAbstractGraphicsItems with a larger zorder
# TODO LH Get pixmap without tight coupling to scene
if not self.has_mouse():
painter.drawPixmap(self.boundingRect(),
self.scene().pixmap,
self.sceneBoundingRect())
with painter_state(painter):
outline_colour, fill_colour = self.colours
# Cosmetic pens "...draw strokes that have a constant width
# regardless of any transformations applied to the QPainter they are
# used with."
pen = QPen(outline_colour, self.BOX_WIDTH, Qt.SolidLine)
pen.setCosmetic(True)
painter.setPen(pen)
r = self.boundingRect()
painter.drawRect(r)
if fill_colour:
painter.fillRect(r, fill_colour)
def paint(self, painter, option, widget):
"""QGraphicsItem virtual
"""
with painter_state(painter):
painter.setRenderHint(QPainter.Antialiasing)
bounding = self.boundingRect()
# Black circle, with partially transparent white fill
painter.setPen(self.PEN)
painter.setBrush(self.FILL)
painter.drawEllipse(bounding)
# Filled black circle at centre
painter.setBrush(QBrush(Qt.black))
painter.drawEllipse(bounding.center(), 2, 2)
# Black crosshair
size = self.SIZE
half_size = self.HALF_SIZE
painter.drawLine(
bounding.topLeft() + QPoint(0, half_size),
bounding.topLeft() + QPoint(size, half_size)
)
painter.drawLine(
bounding.topLeft() + QPoint(half_size, 0),
bounding.topLeft() + QPoint(half_size, size)
)
def paint(self, painter, option, widget=None):
"""QGraphicsRectItem virtual
"""
# TODO LH Is there a way to clip to overlapping
# QAbstractGraphicsItems with a larger zorder
# TODO LH Get pixmap without tight coupling to scene
if not self.has_mouse():
painter.drawPixmap(self.boundingRect(),
self.scene().pixmap, self.sceneBoundingRect())
with painter_state(painter):
outline_colour, fill_colour = self.colours
# Cosmetic pens "...draw strokes that have a constant width
# regardless of any transformations applied to the QPainter they are
# used with."
pen = QPen(outline_colour, self.BOX_WIDTH, Qt.SolidLine)
pen.setCosmetic(True)
painter.setPen(pen)
r = self.boundingRect()
painter.drawRect(r)
if fill_colour:
painter.fillRect(r, fill_colour)
def paint(self, painter, option, widget=None):
"""QGraphicsRectItem virtual
"""
# TODO LH Is there a way to clip to overlapping
# QAbstractGraphicsItems with a larger zorder
# TODO LH Get pixmap without tight coupling to scene
if not self.has_mouse():
painter.drawPixmap(self.boundingRect(),
self.scene().pixmap,
self.sceneBoundingRect())
with painter_state(painter):
# Zero thickness indicates a cosmetic pen, which is drawn with the
# same thickness regardless of the view's scale factor
outline_colour, fill_colour = self.colours
painter.setPen(QPen(outline_colour, 0, Qt.SolidLine))
r = self.boundingRect()
painter.drawRect(r)
if self._seeds:
# Draw sub-segmentation seed points
painter.setBrush(QBrush(Qt.black))
painter.setPen(QPen(Qt.white, 5, Qt.SolidLine))
for point in self._seeds:
painter.drawEllipse(point, 5, 5)
if fill_colour:
painter.fillRect(r, fill_colour)
def _paint_box(self, painter, option, index):
"""The grey box
"""
selected = QStyle.State_Selected & option.state
with painter_state(painter):
painter.setBrush(self.GREY if selected else self.DARK_GREY)
painter.drawRect(option.rect)
def _paint_controls(self, painter, option, index):
"""Arrows to rotate crops
"""
with painter_state(painter):
selected = QStyle.State_Selected & option.state
painter.setBrush(self.WHITE if selected else self.GREY)
f = option.font
f.setPointSize(19) # TODO LH Arbitrary font size
painter.setFont(f)
# \u293e and \u293f are unicode characters for 'lower right
# semicircular clockwise arrow' and 'lower right semicircular
# anticlockwise arrow' respectively
clockwise = self.rotate_clockwise_rect.translated(
option.rect.topLeft())
painter.drawRect(clockwise)
painter.drawText(clockwise, Qt.AlignVCenter | Qt.AlignHCenter,
u'\u293e')
clockwise = self.rotate_counterclockwise_rect.translated(
option.rect.topLeft())
painter.drawRect(clockwise)
painter.drawText(clockwise, Qt.AlignVCenter | Qt.AlignHCenter,
u'\u293f')
def paint(self, painter, option, widget=None):
"""QGraphicsRectItem virtual
"""
# TODO LH Is there a way to clip to overlapping
# QAbstractGraphicsItems with a larger zorder
# TODO LH Get pixmap without tight coupling to scene
painter.drawPixmap(self.boundingRect(),
self.scene().pixmap, self.sceneBoundingRect())
with painter_state(painter):
# Zero thickness indicates a cosmetic pen, which is drawn with the
# same thickness regardless of the view's scale factor
painter.setPen(QPen(self.colour, 0, Qt.SolidLine))
r = self.boundingRect()
painter.drawRect(r)
if self._seeds:
# Draw sub-segmentation seed points
painter.setBrush(QBrush(Qt.black))
painter.setPen(QPen(Qt.white, 5, Qt.SolidLine))
for point in self._seeds:
painter.drawEllipse(point, 5, 5)
if self.DRAW_INNER:
painter.setPen(QPen(self.inner_colour, 1, Qt.SolidLine))
r.adjust(1, 1, -1, -1)
painter.drawRect(r)
def _paint_box(self, painter, option, index):
"""Paints the grey box
"""
valid = index.data(MetadataValidRole)
selected = QStyle.State_Selected & option.state
with painter_state(painter):
if not valid:
painter.setBrush(self.INVALID_SELECTED if selected else self.INVALID)
else:
painter.setBrush(self.GREY if selected else self.DARK_GREY)
painter.drawRect(option.rect)
def _paint_box(self, painter, option, index):
"""Paints background
"""
valid = index.data(MetadataValidRole)
selected = QStyle.State_Selected & option.state
with painter_state(painter):
if not valid:
painter.setBrush(
self.INVALID_SELECTED if selected else self.INVALID)
else:
painter.setBrush(self.GREY if selected else self.DARK_GREY)
painter.setPen(Qt.black)
painter.drawRect(option.rect)
def _paint_title(self, painter, option, index):
"""Paints the title of this crop
"""
with painter_state(painter):
font = painter.font()
font.setPointSize(13) # TODO LH Arbitrary font size
font.setWeight(QFont.Black)
painter.setFont(font)
rect = self.title_rect.translated(option.rect.topLeft())
# Textual title in black at top left
painter.drawText(rect, Qt.AlignTop | Qt.AlignLeft,
index.data(Qt.DisplayRole))
def _paint_title(self, painter, option, index):
"""Paints the title of this crop
"""
with painter_state(painter):
font = painter.font()
font.setPointSize(14) # TODO LH Arbitrary font size
font.setWeight(QFont.Black)
painter.setFont(font)
rect = self.title_rect.translated(option.rect.topLeft())
# Textual title in black at top left
painter.setPen(Qt.black)
painter.drawText(rect, Qt.AlignTop | Qt.AlignLeft,
index.data(Qt.DisplayRole))
def paint(self, painter, option, widget):
"""QGraphicsItem virtual
"""
with painter_state(painter):
painter.setRenderHint(QPainter.Antialiasing)
bounding = self.boundingRect()
# Black circle, with partially transparent white fill
painter.setPen(self.PEN)
painter.setBrush(self.FILL)
painter.drawEllipse(bounding)
# Filled black circle at centre
painter.setBrush(QBrush(Qt.black))
painter.drawEllipse(bounding.center(), 2, 2)
# Black crosshair
size = self.SIZE
half_size = self.HALF_SIZE
painter.drawLine(bounding.topLeft() + QPoint(0, half_size),
bounding.topLeft() + QPoint(size, half_size))
painter.drawLine(bounding.topLeft() + QPoint(half_size, 0),
bounding.topLeft() + QPoint(half_size, size))
def _paint_crop(self, painter, option, index):
"""Paints the crop
"""
source_rect = index.data(RectRole)
crop_rect = self.crop_rect.translated(option.rect.topLeft())
angle = index.data(RotationRole)
# Target rect with same aspect ratio as source
source_aspect = float(source_rect.width()) / source_rect.height()
crop_aspect = float(crop_rect.width()) / crop_rect.height()
# True if the item has been rotated by a multiple of 90 degrees
perpendicular = 1 == (angle / 90) % 2
# Some nasty logic to compute the target rect
if perpendicular:
crop_aspect = 1.0 / crop_aspect
if source_aspect > 1.0:
# Crop is wider than is is tall
if crop_aspect > source_aspect:
fit_to = 'height'
f = 1.0 / source_aspect
else:
fit_to = 'width'
f = source_aspect
else:
# Crop is taller than is is wide
if crop_aspect < source_aspect:
fit_to = 'width'
f = source_aspect
else:
fit_to = 'height'
f = 1.0 / source_aspect
if perpendicular:
if 'width' == fit_to:
size = QSize(crop_rect.height(),
crop_rect.height() / f)
else:
size = QSize(crop_rect.width() / f,
crop_rect.width())
else:
if 'width' == fit_to:
size = QSize(crop_rect.width(),
crop_rect.width() / f)
else:
size = QSize(crop_rect.height() / f,
crop_rect.height())
target_rect = QRect(crop_rect.topLeft(), size)
target_rect.moveCenter(option.rect.center())
# Draw rotated
if angle:
t = QTransform()
t.translate(option.rect.width() / 2 + option.rect.left(),
option.rect.height() / 2 + option.rect.top())
t.rotate(angle)
t.translate(-option.rect.width() / 2 - option.rect.left(),
-option.rect.height() / 2 - option.rect.top())
with painter_state(painter):
if angle:
painter.setTransform(t)
painter.drawPixmap(target_rect, index.data(PixmapRole), source_rect)
if QStyle.State_Selected & option.state:
painter.setPen(QPen(Qt.white, 1, Qt.SolidLine))
painter.drawRect(target_rect)
def _paint_crop(self, painter, option, index):
"""Paints the crop
"""
source_rect = index.data(RectRole)
crop_rect = self.crop_rect.translated(option.rect.topLeft())
angle = index.data(RotationRole)
# Target rect with same aspect ratio as source
source_aspect = float(source_rect.width()) / source_rect.height()
crop_aspect = float(crop_rect.width()) / crop_rect.height()
# True if the item has been rotated by a multiple of 90 degrees
perpendicular = 1 == (angle / 90) % 2
# Some nasty logic to compute the target rect
if perpendicular:
crop_aspect = 1.0 / crop_aspect
if source_aspect > 1.0:
# Crop is wider than is is tall
if crop_aspect > source_aspect:
fit_to = 'height'
f = 1.0 / source_aspect
else:
fit_to = 'width'
f = source_aspect
else:
# Crop is taller than is is wide
if crop_aspect < source_aspect:
fit_to = 'width'
f = source_aspect
else:
fit_to = 'height'
f = 1.0 / source_aspect
if perpendicular:
if 'width' == fit_to:
size = QSize(crop_rect.height(), crop_rect.height() / f)
else:
size = QSize(crop_rect.width() / f, crop_rect.width())
else:
if 'width' == fit_to:
size = QSize(crop_rect.width(), crop_rect.width() / f)
else:
size = QSize(crop_rect.height() / f, crop_rect.height())
target_rect = QRect(crop_rect.topLeft(), size)
target_rect.moveCenter(option.rect.center())
# Draw rotated
if angle:
t = QTransform()
t.translate(option.rect.width() / 2 + option.rect.left(),
option.rect.height() / 2 + option.rect.top())
t.rotate(angle)
t.translate(-option.rect.width() / 2 - option.rect.left(),
-option.rect.height() / 2 - option.rect.top())
with painter_state(painter):
if angle:
painter.setTransform(t)
painter.drawPixmap(target_rect, index.data(PixmapRole),
source_rect)
if QStyle.State_Selected & option.state:
painter.setPen(QPen(Qt.white, 1, Qt.SolidLine))
painter.drawRect(target_rect)
