from .Exporter import Exporter from ..parametertree import Parameter from ..Qt import QtGui, QtCore, QtSvg import re __all__ = ['PrintExporter'] #__all__ = [] ## Printer is disabled for now--does not work very well. class PrintExporter(Exporter): Name = "Printer" def __init__(self, item): Exporter.__init__(self, item) tr = self.getTargetRect() self.params = Parameter(name='params', type='group', children=[ {'name': 'width', 'type': 'float', 'value': 0.1, 'limits': (0, None), 'suffix': 'm', 'siPrefix': True}, {'name': 'height', 'type': 'float', 'value': (0.1 * tr.height()) / tr.width(), 'limits': (0, None), 'suffix': 'm', 'siPrefix': True}, ]) self.params.param('width').sigValueChanged.connect(self.widthChanged) self.params.param('height').sigValueChanged.connect(self.heightChanged) def widthChanged(self): sr = self.getSourceRect() ar = sr.height() / sr.width() self.params.param('height').setValue(self.params['width'] * ar, blockSignal=self.heightChanged) def heightChanged(self): sr = self.getSourceRect() ar = sr.width() / sr.height() self.params.param('width').setValue(self.params['height'] * ar, blockSignal=self.widthChanged) def parameters(self): return self.params def export(self, fileName=None): printer = QtGui.QPrinter(QtGui.QPrinter.HighResolution) dialog = QtGui.QPrintDialog(printer) dialog.setWindowTitle("Print Document") if dialog.exec_() != QtGui.QDialog.Accepted: return; #dpi = QtGui.QDesktopWidget().physicalDpiX() #self.svg.setSize(QtCore.QSize(100,100)) #self.svg.setResolution(600) #res = printer.resolution() sr = self.getSourceRect() #res = sr.width() * .4 / (self.params['width'] * 100 / 2.54) res = QtGui.QDesktopWidget().physicalDpiX() printer.setResolution(res) rect = printer.pageRect() center = rect.center() h = self.params['height'] * res * 100. / 2.54 w = self.params['width'] * res * 100. / 2.54 x = center.x() - w/2. y = center.y() - h/2. targetRect = QtCore.QRect(x, y, w, h) sourceRect = self.getSourceRect() painter = QtGui.QPainter(printer) try: self.setExportMode(True, {'painter': painter}) self.getScene().render(painter, QtCore.QRectF(targetRect), QtCore.QRectF(sourceRect)) finally: self.setExportMode(False) painter.end() #PrintExporter.register()