def paintPageNumbers(self):
# Page numbers are drawn only when the editor is in page mode,
# if fields are set and the option to display numbers is enabled
if (self.m_usePageMode
and not self.m_pageMetrics.pxPageMargins().isNull()
and self.m_showPageNumbers):
pageWidth = self.m_pageMetrics.pxPageSize().width()
pageHeight = self.m_pageMetrics.pxPageSize().height()
pageMargins = QMarginsF(self.m_pageMetrics.pxPageMargins())
p = QPainter(self.viewport())
font = QFont()
font.setPointSize(10)
font.setFamily('Calibri')
p.setFont(font)
p.setPen(QPen(self.palette().text(), 1))
# The current height and width are displayed on the screen.
curHeight = pageHeight - (self.verticalScrollBar().value() %
pageHeight)
# The start of the field must take into account the scrollbar offset.
leftMarginPosition = pageMargins.left() - self.horizontalScrollBar(
).value()
# Total field width
marginWidth = pageWidth - pageMargins.left() - pageMargins.right()
# The number of the first page to see.
pageNumber = self.verticalScrollBar().value() / pageHeight + 1
# Add 0.3 to pageNumber before emitting
# to announce page when it is about halfway up the screen
self.pageInfo.emit(
(int(pageNumber + 0.3),
int(self.verticalScrollBar().maximum() / pageHeight + 1)))
# Paint page numbers while there are remotely more visible pages
while (curHeight < pageHeight + self.height()):
# Define the space for top page number; paint number
topMarginRect = QRectF(leftMarginPosition,
curHeight - pageHeight, marginWidth,
pageMargins.top())
self.paintPageNumber(p, topMarginRect, True, pageNumber)
# Define the space for bottom page number; paint number
bottomMarginRect = QRectF(leftMarginPosition,
curHeight - pageMargins.bottom(),
marginWidth, pageMargins.bottom())
self.paintPageNumber(p, bottomMarginRect, False, pageNumber)
# Go to next page
pageNumber += 1
curHeight += pageHeight
class PageMetrics():
m_pageFormat = QPageSize.PageSizeId()
m_mmPageSize = QSizeF()
m_mmPageMargins = QMarginsF()
m_pxPageSize = QSizeF()
m_pxPageMargins = QMarginsF()
def __init__(self):
super(PageMetrics, self).__init__()
def mmToInches(self, mm):
return mm * 0.039370147
def mmToPx(self, _mm, _x):
return self.mmToInches(_mm) * (qApp.desktop().logicalDpiX() if _x else qApp.desktop().logicalDpiY())
def pageSizeIdFromString(self, _from):
result = QPageSize.A4
if (_from == "A0"):
result = QPageSize.A0
elif (_from == "A1"):
result = QPageSize.A1
elif (_from == "A2"):
result = QPageSize.A2
elif (_from == "A3"):
result = QPageSize.A3
elif (_from == "A4"):
result = QPageSize.A4
elif (_from == "A5"):
result = QPageSize.A5
elif (_from == "A6"):
result = QPageSize.A6
else:
Q_ASSERT_X(0, Q_FUNC_INFO, qPrintable("Undefined page size: " + _from))
return result
def stringFromPageSizeId(self, _pageSize):
result = ""
if(_pageSize == QPageSize.A0):
result = "A0"
elif (_pageSize == QPageSize.A1):
result = "A1"
elif (_pageSize == QPageSize.A2):
result = "A2"
elif (_pageSize == QPageSize.A3):
result = "A3"
elif (_pageSize == QPageSize.A4):
result = "A4"
elif (_pageSize == QPageSize.A5):
result = "A5"
elif (_pageSize == QPageSize.A6):
result = "A6"
else:
Q_ASSERT_X(0, Q_FUNC_INFO, qPrintable("Undefined page size: " + QString.number(_pageSize)))
return result
def update(self, _pageFormat, _mmPageMargins=QMarginsF()):
self.m_pageFormat = _pageFormat
self.m_mmPageSize = QPageSize(self.m_pageFormat).rect(QPageSize.Millimeter).size()
self.m_mmPageMargins = _mmPageMargins
# Calculate values in pixels
x = True; y = False
self.m_pxPageSize = QSizeF(self.mmToPx(self.m_mmPageSize.width(), x), self.mmToPx(self.m_mmPageSize.height(), y))
self.m_pxPageMargins = QMarginsF(self.mmToPx(self.m_mmPageMargins.left(), x), self.mmToPx(self.m_mmPageMargins.top(), y), self.mmToPx(self.m_mmPageMargins.right(), x), self.mmToPx(self.m_mmPageMargins.bottom(), y))
def pageFormat(self):
return self.m_pageFormat
def mmPageSize(self):
return self.m_mmPageSize
def mmPageMargins(self):
return self.m_mmPageMargins
def pxPageSize(self):
return QSizeF(self.m_pxPageSize.width(), self.m_pxPageSize.height())
def pxPageMargins(self):
return QMarginsF(self.m_pxPageMargins.left(), self.m_pxPageMargins.top(), self.m_pxPageMargins.right(), self.m_pxPageMargins.bottom())