def addPixmap(self,
pixmap,
title=None,
comment=None,
commentPosition=None):
"""Add a pixmap to the print preview scene
:param QPixmap pixmap: Pixmap to be added to the scene
:param str title: Title shown above (centered) the pixmap
:param str comment: Comment displayed below the pixmap
:param commentPosition: "CENTER" or "LEFT"
"""
if self._toBeCleared:
self._clearAll()
self.ensurePrinterIsSet()
if self.printer is None:
_logger.error("printer is not set, cannot add pixmap to page")
return
if title is None:
title = ' ' * 88
if comment is None:
comment = ' ' * 88
if commentPosition is None:
commentPosition = "CENTER"
if qt.qVersion() < "5.0":
rectItem = qt.QGraphicsRectItem(self.page, self.scene)
else:
rectItem = qt.QGraphicsRectItem(self.page)
rectItem.setRect(qt.QRectF(1, 1, pixmap.width(), pixmap.height()))
pen = rectItem.pen()
color = qt.QColor(qt.Qt.red)
color.setAlpha(1)
pen.setColor(color)
rectItem.setPen(pen)
rectItem.setZValue(1)
rectItem.setFlag(qt.QGraphicsItem.ItemIsSelectable, True)
rectItem.setFlag(qt.QGraphicsItem.ItemIsMovable, True)
rectItem.setFlag(qt.QGraphicsItem.ItemIsFocusable, False)
rectItemResizeRect = _GraphicsResizeRectItem(rectItem, self.scene)
rectItemResizeRect.setZValue(2)
if qt.qVersion() < "5.0":
pixmapItem = qt.QGraphicsPixmapItem(rectItem, self.scene)
else:
pixmapItem = qt.QGraphicsPixmapItem(rectItem)
pixmapItem.setPixmap(pixmap)
pixmapItem.setZValue(0)
# I add the title
if qt.qVersion() < "5.0":
textItem = qt.QGraphicsTextItem(title, rectItem, self.scene)
else:
textItem = qt.QGraphicsTextItem(title, rectItem)
textItem.setTextInteractionFlags(qt.Qt.TextEditorInteraction)
offset = 0.5 * textItem.boundingRect().width()
textItem.moveBy(0.5 * pixmap.width() - offset, -20)
textItem.setZValue(2)
# I add the comment
if qt.qVersion() < "5.0":
commentItem = qt.QGraphicsTextItem(comment, rectItem, self.scene)
else:
commentItem = qt.QGraphicsTextItem(comment, rectItem)
commentItem.setTextInteractionFlags(qt.Qt.TextEditorInteraction)
offset = 0.5 * commentItem.boundingRect().width()
if commentPosition.upper() == "LEFT":
x = 1
else:
x = 0.5 * pixmap.width() - offset
commentItem.moveBy(x, pixmap.height() + 20)
commentItem.setZValue(2)
rectItem.moveBy(20, 40)
def addSvgItem(self,
item,
title=None,
comment=None,
commentPosition=None,
viewBox=None):
"""Add a SVG item to the scene.
:param QSvgRenderer item: SVG item to be added to the scene.
:param str title: Title shown above (centered) the SVG item.
:param str comment: Comment displayed below the SVG item.
:param str commentPosition: "CENTER" or "LEFT"
:param QRectF viewBox: Bounding box for the item on the print page
(xOffset, yOffset, width, height). If None, use original
item size.
"""
if not qt.HAS_SVG:
raise RuntimeError("Missing QtSvg library.")
if not isinstance(item, qt.QSvgRenderer):
raise TypeError("addSvgItem: QSvgRenderer expected")
if self._toBeCleared:
self._clearAll()
self.ensurePrinterIsSet()
if self.printer is None:
_logger.error("printer is not set, cannot add SvgItem to page")
return
if title is None:
title = 50 * ' '
if comment is None:
comment = 80 * ' '
if commentPosition is None:
commentPosition = "CENTER"
if viewBox is None:
if hasattr(item, "_viewBox"):
# PyMca compatibility: viewbox attached to item
viewBox = item._viewBox
else:
# try the original item viewbox
viewBox = item.viewBoxF()
svgItem = _GraphicsSvgRectItem(viewBox, self.page)
svgItem.setSvgRenderer(item)
svgItem.setCacheMode(qt.QGraphicsItem.NoCache)
svgItem.setZValue(0)
svgItem.setFlag(qt.QGraphicsItem.ItemIsSelectable, True)
svgItem.setFlag(qt.QGraphicsItem.ItemIsMovable, True)
svgItem.setFlag(qt.QGraphicsItem.ItemIsFocusable, False)
rectItemResizeRect = _GraphicsResizeRectItem(svgItem, self.scene)
rectItemResizeRect.setZValue(2)
self._svgItems.append(item)
if qt.qVersion() < '5.0':
textItem = qt.QGraphicsTextItem(title, svgItem, self.scene)
else:
textItem = qt.QGraphicsTextItem(title, svgItem)
textItem.setTextInteractionFlags(qt.Qt.TextEditorInteraction)
title_offset = 0.5 * textItem.boundingRect().width()
textItem.setZValue(1)
textItem.setFlag(qt.QGraphicsItem.ItemIsMovable, True)
dummyComment = 80 * "1"
if qt.qVersion() < '5.0':
commentItem = qt.QGraphicsTextItem(dummyComment, svgItem,
self.scene)
else:
commentItem = qt.QGraphicsTextItem(dummyComment, svgItem)
commentItem.setTextInteractionFlags(qt.Qt.TextEditorInteraction)
scaleCalculationRect = qt.QRectF(commentItem.boundingRect())
scale = svgItem.boundingRect().width() / scaleCalculationRect.width()
comment_offset = 0.5 * commentItem.boundingRect().width()
if commentPosition.upper() == "LEFT":
x = 1
else:
x = 0.5 * svgItem.boundingRect().width(
) - comment_offset * scale # fixme: centering
commentItem.moveBy(
svgItem.boundingRect().x() + x,
svgItem.boundingRect().y() + svgItem.boundingRect().height())
commentItem.setPlainText(comment)
commentItem.setZValue(1)
commentItem.setFlag(qt.QGraphicsItem.ItemIsMovable, True)
if qt.qVersion() < "5.0":
commentItem.scale(scale, scale)
else:
# the correct equivalent would be:
# rectItem.setTransform(qt.QTransform.fromScale(scalex, scaley))
commentItem.setScale(scale)
textItem.moveBy(
svgItem.boundingRect().x() + 0.5 * svgItem.boundingRect().width() -
title_offset * scale,
svgItem.boundingRect().y())
if qt.qVersion() < "5.0":
textItem.scale(scale, scale)
else:
# the correct equivalent would be:
# rectItem.setTransform(qt.QTransform.fromScale(scalex, scaley))
textItem.setScale(scale)
def addSvgItem(self, item, title=None,
comment=None, commentPosition=None,
viewBox=None, keepRatio=True):
"""Add a SVG item to the scene.
:param QSvgRenderer item: SVG item to be added to the scene.
:param str title: Title shown above (centered) the SVG item.
:param str comment: Comment displayed below the SVG item.
:param str commentPosition: "CENTER" or "LEFT"
:param QRectF viewBox: Bounding box for the item on the print page
(xOffset, yOffset, width, height). If None, use original
item size.
:param bool keepRatio: If True, resizing the item will preserve its
original aspect ratio.
"""
if not qt.HAS_SVG:
raise RuntimeError("Missing QtSvg library.")
if not isinstance(item, qt.QSvgRenderer):
raise TypeError("addSvgItem: QSvgRenderer expected")
if self._toBeCleared:
self._clearAll()
self.ensurePrinterIsSet()
if self.printer is None:
_logger.error("printer is not set, cannot add SvgItem to page")
return
if title is None:
title = 50 * ' '
if comment is None:
comment = 80 * ' '
if commentPosition is None:
commentPosition = "CENTER"
if viewBox is None:
if hasattr(item, "_viewBox"):
# PyMca compatibility: viewbox attached to item
viewBox = item._viewBox
else:
# try the original item viewbox
viewBox = item.viewBoxF()
svgItem = _GraphicsSvgRectItem(viewBox, self.page)
svgItem.setSvgRenderer(item)
svgItem.setCacheMode(qt.QGraphicsItem.NoCache)
svgItem.setZValue(0)
svgItem.setFlag(qt.QGraphicsItem.ItemIsSelectable, True)
svgItem.setFlag(qt.QGraphicsItem.ItemIsMovable, True)
svgItem.setFlag(qt.QGraphicsItem.ItemIsFocusable, False)
rectItemResizeRect = _GraphicsResizeRectItem(svgItem, self.scene,
keepratio=keepRatio)
rectItemResizeRect.setZValue(2)
self._svgItems.append(item)
# Comment / legend
dummyComment = 80 * "1"
if qt.qVersion() < '5.0':
commentItem = qt.QGraphicsTextItem(dummyComment, svgItem, self.scene)
else:
commentItem = qt.QGraphicsTextItem(dummyComment, svgItem)
commentItem.setTextInteractionFlags(qt.Qt.TextEditorInteraction)
# we scale the text to have the legend box have the same width as the graph
scaleCalculationRect = qt.QRectF(commentItem.boundingRect())
scale = svgItem.boundingRect().width() / scaleCalculationRect.width()
commentItem.setPlainText(comment)
commentItem.setZValue(1)
commentItem.setFlag(qt.QGraphicsItem.ItemIsMovable, True)
if qt.qVersion() < "5.0":
commentItem.scale(scale, scale)
else:
commentItem.setScale(scale)
# align
if commentPosition.upper() == "CENTER":
alignment = qt.Qt.AlignCenter
elif commentPosition.upper() == "RIGHT":
alignment = qt.Qt.AlignRight
else:
alignment = qt.Qt.AlignLeft
commentItem.setTextWidth(commentItem.boundingRect().width())
center_format = qt.QTextBlockFormat()
center_format.setAlignment(alignment)
cursor = commentItem.textCursor()
cursor.select(qt.QTextCursor.Document)
cursor.mergeBlockFormat(center_format)
cursor.clearSelection()
commentItem.setTextCursor(cursor)
if alignment == qt.Qt.AlignLeft:
deltax = 0
else:
deltax = (svgItem.boundingRect().width() - commentItem.boundingRect().width()) / 2.
commentItem.moveBy(svgItem.boundingRect().x() + deltax,
svgItem.boundingRect().y() + svgItem.boundingRect().height())
# Title
if qt.qVersion() < '5.0':
textItem = qt.QGraphicsTextItem(title, svgItem, self.scene)
else:
textItem = qt.QGraphicsTextItem(title, svgItem)
textItem.setTextInteractionFlags(qt.Qt.TextEditorInteraction)
textItem.setZValue(1)
textItem.setFlag(qt.QGraphicsItem.ItemIsMovable, True)
title_offset = 0.5 * textItem.boundingRect().width()
textItem.moveBy(svgItem.boundingRect().x() +
0.5 * svgItem.boundingRect().width() - title_offset * scale,
svgItem.boundingRect().y())
if qt.qVersion() < "5.0":
textItem.scale(scale, scale)
else:
textItem.setScale(scale)