class GraphicsPixmapWidget(QGraphicsWidget):
def __init__(self, pixmap, parent=None):
QGraphicsWidget.__init__(self, parent)
self.setCacheMode(QGraphicsItem.ItemCoordinateCache)
self._pixmap = pixmap
self._pixmapSize = QSizeF()
self.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
def setPixmap(self, pixmap):
if self._pixmap != pixmap:
self._pixmap = QPixmap(pixmap)
self.updateGeometry()
def pixmap(self):
return QPixmap(self._pixmap)
def setPixmapSize(self, size):
if self._pixmapSize != size:
self._pixmapSize = QSizeF(size)
self.updateGeometry()
def pixmapSize(self):
if self._pixmapSize.isValid():
return QSizeF(self._pixmapSize)
else:
return QSizeF(self._pixmap.size())
def sizeHint(self, which, constraint=QSizeF()):
if which == Qt.PreferredSize:
return self.pixmapSize()
else:
return QGraphicsWidget.sizeHint(self, which, constraint)
def paint(self, painter, option, widget=0):
if self._pixmap.isNull():
return
rect = self.contentsRect()
pixsize = self.pixmapSize()
pixrect = QRectF(QPointF(0, 0), pixsize)
pixrect.moveCenter(rect.center())
painter.save()
painter.setPen(QPen(QColor(0, 0, 0, 50), 3))
painter.drawRoundedRect(pixrect, 2, 2)
painter.setRenderHint(QPainter.SmoothPixmapTransform)
source = QRectF(QPointF(0, 0), QSizeF(self._pixmap.size()))
painter.drawPixmap(pixrect, self._pixmap, source)
painter.restore()
class GraphicsPixmapWidget(QGraphicsWidget):
def __init__(self, pixmap, parent=None):
QGraphicsWidget.__init__(self, parent)
self.setCacheMode(QGraphicsItem.ItemCoordinateCache)
self._pixmap = pixmap
self._pixmapSize = QSizeF()
self.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
def setPixmap(self, pixmap):
if self._pixmap != pixmap:
self._pixmap = QPixmap(pixmap)
self.updateGeometry()
def pixmap(self):
return QPixmap(self._pixmap)
def setPixmapSize(self, size):
if self._pixmapSize != size:
self._pixmapSize = QSizeF(size)
self.updateGeometry()
def pixmapSize(self):
if self._pixmapSize.isValid():
return QSizeF(self._pixmapSize)
else:
return QSizeF(self._pixmap.size())
def sizeHint(self, which, constraint=QSizeF()):
if which == Qt.PreferredSize:
return self.pixmapSize()
else:
return QGraphicsWidget.sizeHint(self, which, constraint)
def paint(self, painter, option, widget=0):
if self._pixmap.isNull():
return
rect = self.contentsRect()
pixsize = self.pixmapSize()
pixrect = QRectF(QPointF(0, 0), pixsize)
pixrect.moveCenter(rect.center())
painter.save()
painter.setPen(QPen(QColor(0, 0, 0, 50), 3))
painter.drawRoundedRect(pixrect, 2, 2)
painter.setRenderHint(QPainter.SmoothPixmapTransform)
source = QRectF(QPointF(0, 0), QSizeF(self._pixmap.size()))
painter.drawPixmap(pixrect, self._pixmap, source)
painter.restore()
class GraphicsThumbnailWidget(QGraphicsWidget):
def __init__(self, pixmap, title="", parent=None):
QGraphicsWidget.__init__(self, parent)
self._title = None
self._size = QSizeF()
layout = QGraphicsLinearLayout(Qt.Vertical, self)
layout.setSpacing(2)
layout.setContentsMargins(5, 5, 5, 5)
self.setContentsMargins(0, 0, 0, 0)
self.pixmapWidget = GraphicsPixmapWidget(pixmap, self)
self.labelWidget = GraphicsTextWidget(title, self)
layout.addItem(self.pixmapWidget)
layout.addItem(self.labelWidget)
layout.setAlignment(self.pixmapWidget, Qt.AlignCenter)
layout.setAlignment(self.labelWidget, Qt.AlignHCenter | Qt.AlignBottom)
self.setLayout(layout)
self.setSizePolicy(QSizePolicy.MinimumExpanding,
QSizePolicy.MinimumExpanding)
self.setFlag(QGraphicsItem.ItemIsSelectable, True)
self.setTitle(title)
self.setTitleWidth(100)
def setPixmap(self, pixmap):
self.pixmapWidget.setPixmap(pixmap)
self._updatePixmapSize()
def pixmap(self):
return self.pixmapWidget.pixmap()
def setTitle(self, title):
if self._title != title:
self._title = title
self.labelWidget.setHtml('<center>' + escape(title) + '</center>')
self.layout().invalidate()
def title(self):
return self._title
def setThumbnailSize(self, size):
if self._size != size:
self._size = QSizeF(size)
self._updatePixmapSize()
self.labelWidget.setTextWidth(max(100, size.width()))
def setTitleWidth(self, width):
self.labelWidget.setTextWidth(width)
self.layout().invalidate()
def paint(self, painter, option, widget=0):
contents = self.contentsRect()
if self.isSelected():
painter.save()
painter.setPen(QPen(QColor(125, 162, 206, 192)))
painter.setBrush(QBrush(QColor(217, 232, 252, 192)))
painter.drawRoundedRect(
QRectF(contents.topLeft(),
self.geometry().size()), 3, 3)
painter.restore()
def _updatePixmapSize(self):
pixmap = self.pixmap()
if not pixmap.isNull() and self._size.isValid():
pixsize = QSizeF(self.pixmap().size())
pixsize.scale(self._size, Qt.KeepAspectRatio)
else:
pixsize = QSizeF()
self.pixmapWidget.setPixmapSize(pixsize)
class GraphicsThumbnailWidget(QGraphicsWidget):
def __init__(self, pixmap, title="", parent=None):
QGraphicsWidget.__init__(self, parent)
self._title = None
self._size = QSizeF()
layout = QGraphicsLinearLayout(Qt.Vertical, self)
layout.setSpacing(2)
layout.setContentsMargins(5, 5, 5, 5)
self.setContentsMargins(0, 0, 0, 0)
self.pixmapWidget = GraphicsPixmapWidget(pixmap, self)
self.labelWidget = GraphicsTextWidget(title, self)
layout.addItem(self.pixmapWidget)
layout.addItem(self.labelWidget)
layout.setAlignment(self.pixmapWidget, Qt.AlignCenter)
layout.setAlignment(self.labelWidget, Qt.AlignHCenter | Qt.AlignBottom)
self.setLayout(layout)
self.setSizePolicy(QSizePolicy.MinimumExpanding,
QSizePolicy.MinimumExpanding)
self.setFlag(QGraphicsItem.ItemIsSelectable, True)
self.setTitle(title)
self.setTitleWidth(100)
def setPixmap(self, pixmap):
self.pixmapWidget.setPixmap(pixmap)
self._updatePixmapSize()
def pixmap(self):
return self.pixmapWidget.pixmap()
def setTitle(self, title):
if self._title != title:
self._title = title
self.labelWidget.setHtml(
'<center>' + escape(title) + '</center>'
)
self.layout().invalidate()
def title(self):
return self._title
def setThumbnailSize(self, size):
if self._size != size:
self._size = QSizeF(size)
self._updatePixmapSize()
self.labelWidget.setTextWidth(max(100, size.width()))
def setTitleWidth(self, width):
self.labelWidget.setTextWidth(width)
self.layout().invalidate()
def paint(self, painter, option, widget=0):
contents = self.contentsRect()
if self.isSelected():
painter.save()
painter.setPen(QPen(QColor(125, 162, 206, 192)))
painter.setBrush(QBrush(QColor(217, 232, 252, 192)))
painter.drawRoundedRect(QRectF(contents.topLeft(),
self.geometry().size()), 3, 3)
painter.restore()
def _updatePixmapSize(self):
pixmap = self.pixmap()
if not pixmap.isNull() and self._size.isValid():
pixsize = QSizeF(self.pixmap().size())
pixsize.scale(self._size, Qt.KeepAspectRatio)
else:
pixsize = QSizeF()
self.pixmapWidget.setPixmapSize(pixsize)
