def mousePressEvent(self, event):
if self._newRect is not None:
self._newRect = None
self._point0 = self.pos()
parent = self.parentItem()
scene = self.scene()
# following line prevents dragging along the previously selected
# item when resizing another one
scene.clearSelection()
rect = parent.boundingRect()
self._x = rect.x()
self._y = rect.y()
self._w = rect.width()
self._h = rect.height()
self._ratio = self._w / self._h
if qt.qVersion() < "5.0":
self._newRect = qt.QGraphicsRectItem(parent, scene)
else:
self._newRect = qt.QGraphicsRectItem(parent)
self._newRect.setRect(qt.QRectF(self._x,
self._y,
self._w,
self._h))
qt.QGraphicsRectItem.mousePressEvent(self, event)
def _updatePrinter(self):
"""Resize :attr:`page`, :attr:`scene` and :attr:`view` to :attr:`printer`
width and height."""
printer = self.printer
assert printer is not None, \
"_updatePrinter should not be called unless a printer is defined"
if self.scene is None:
self.scene = qt.QGraphicsScene()
self.scene.setBackgroundBrush(qt.QColor(qt.Qt.lightGray))
self.scene.setSceneRect(
qt.QRectF(0, 0, printer.width(), printer.height()))
if self.page is None:
self.page = qt.QGraphicsRectItem(0, 0, printer.width(),
printer.height())
self.page.setBrush(qt.QColor(qt.Qt.white))
self.scene.addItem(self.page)
self.scene.setSceneRect(
qt.QRectF(0, 0, printer.width(), printer.height()))
self.page.setPos(qt.QPointF(0.0, 0.0))
self.page.setRect(qt.QRectF(0, 0, printer.width(), printer.height()))
if self.view is None:
self.view = qt.QGraphicsView(self.scene)
self.mainLayout.addWidget(self.view)
self._buildStatusBar()
# self.view.scale(1./self._viewScale, 1./self._viewScale)
self.view.fitInView(self.page.rect(), qt.Qt.KeepAspectRatio)
self._viewScale = 1.00
self._updateTargetLabel()
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)