本文整理汇总了Python中PyQt5.QtPrintSupport.QPrinter.paperRect方法的典型用法代码示例。如果您正苦于以下问题：Python QPrinter.paperRect方法的具体用法？Python QPrinter.paperRect怎么用？Python QPrinter.paperRect使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PyQt5.QtPrintSupport.QPrinter的用法示例。
在下文中一共展示了QPrinter.paperRect方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: PrinterPyQt5
# 需要导入模块: from PyQt5.QtPrintSupport import QPrinter [as 别名]
# 或者: from PyQt5.QtPrintSupport.QPrinter import paperRect [as 别名]
class PrinterPyQt5(Printer):
def __init__(self, page_size, print_pdf=False):
super().__init__(page_size)
self._printer = QPrinter(QPrinter.HighResolution)
self._printer.setPageSize(QtGui.QPageSize(QtCore.QSizeF(*page_size),
QtGui.QPageSize.Millimeter))
self._printer.setColorMode(QPrinter.Color)
logging.info('Using printer "%s"', self._printer.printerName())
self._print_pdf = print_pdf
if self._print_pdf:
logging.info('Using PDF printer')
self._counter = 0
self._printer.setOutputFormat(QPrinter.PdfFormat)
self._printer.setFullPage(True)
def print(self, picture):
if self._print_pdf:
self._printer.setOutputFileName('print_%d.pdf' % self._counter)
self._counter += 1
logging.info('Printing picture')
picture = picture.scaled(self._printer.paperRect().size(),
QtCore.Qt.KeepAspectRatio,
QtCore.Qt.SmoothTransformation)
printable_size = self._printer.pageRect(QPrinter.DevicePixel)
origin = ((printable_size.width() - picture.width()) // 2,
(printable_size.height() - picture.height()) // 2)
painter = QtGui.QPainter(self._printer)
painter.drawImage(QtCore.QPoint(*origin), picture)
painter.end()示例2: printImage
# 需要导入模块: from PyQt5.QtPrintSupport import QPrinter [as 别名]
# 或者: from PyQt5.QtPrintSupport.QPrinter import paperRect [as 别名]
def printImage(self):
if self.model.rowCount(QModelIndex()) * self.model.columnCount(QModelIndex()) > 90000:
answer = QMessageBox.question(self, "Large Image Size",
"The printed image may be very large. Are you sure that "
"you want to print it?",
QMessageBox.Yes | QMessageBox.No)
if answer == QMessageBox.No:
return
printer = QPrinter(QPrinter.HighResolution)
dlg = QPrintDialog(printer, self)
dlg.setWindowTitle("Print Image")
if dlg.exec_() != QDialog.Accepted:
return
painter = QPainter()
painter.begin(printer)
rows = self.model.rowCount(QModelIndex())
columns = self.model.columnCount(QModelIndex())
sourceWidth = (columns+1) * ItemSize
sourceHeight = (rows+1) * ItemSize
painter.save()
xscale = printer.pageRect().width() / float(sourceWidth)
yscale = printer.pageRect().height() / float(sourceHeight)
scale = min(xscale, yscale)
painter.translate(printer.paperRect().x()+printer.pageRect().width()/2,
printer.paperRect().y()+printer.pageRect().height()/2)
painter.scale(scale, scale)
painter.translate(-sourceWidth/2, -sourceHeight/2)
option = QStyleOptionViewItem()
parent = QModelIndex()
progress = QProgressDialog("Printing...", "Cancel", 0, rows, self)
progress.setWindowModality(Qt.ApplicationModal)
y = ItemSize / 2.0
for row in range(rows):
progress.setValue(row)
QApplication.processEvents()
if progress.wasCanceled():
break
x = ItemSize / 2.0
for column in range(columns):
option.rect = QRect(x, y, ItemSize, ItemSize)
self.view.itemDelegate().paint(painter, option,
self.model.index(row, column, parent))
x += ItemSize
y += ItemSize
progress.setValue(rows)
painter.restore()
painter.end()
if progress.wasCanceled():
QMessageBox.information(self, "Printing canceled",
"The printing process was canceled.", QMessageBox.Cancel)