/usr/share/treeline/printdata.py is in treeline 1.4.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#****************************************************************************
# printdata.py, provides a class for printing
#
# TreeLine, an information storage program
# Copyright (C) 2006, Douglas W. Bell
#
# This is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License, either Version 2 or any later
# version. This program is distributed in the hope that it will be useful,
# but WITTHOUT ANY WARRANTY. See the included LICENSE file for details.
#*****************************************************************************
from PyQt4 import QtCore, QtGui
import nodeformat
import globalref
import optiondefaults
import output
import printdialogs
class PrintData(object):
"""Stores print data and main printing fuctions"""
def __init__(self):
# self.printer = QtGui.QPrinter(QtGui.QPrinter.HighResolution)
self.printer = QtGui.QPrinter()
try:
pageSize = getattr(QtGui.QPrinter,
globalref.options.strData('PrintPageSize',
False))
except AttributeError:
pageSize = QtGui.QPrinter.Letter
self.printer.setPageSize(pageSize)
if globalref.options.boolData('PrintLandscape'):
self.printer.setOrientation(QtGui.QPrinter.Landscape)
else:
self.printer.setOrientation(QtGui.QPrinter.Portrait)
self.printer.setFullPage(True)
self.printFont = None # set by setPrintContent
self.printList = []
self.pageActiveLevels = []
def getOutputFont(self):
"""Return the output view font,
ignores use output font option"""
return globalref.mainWin.dataOutSplit.widget(0).font()
def getOptionPrintFont(self):
"""Return font set in option storage or None,
ignores use output font option"""
return globalref.mainWin.getFontFromOptions('Print')
def setOptionPrintFont(self, font):
"""Set the print font in option storage"""
globalref.mainWin.saveFontToOptions(font, 'Print')
def filePrintOpt(self):
"""Set margins, page size and other options for printing"""
dlg = printdialogs.PrintOptionsDialog(self, True, globalref.mainWin)
if dlg.exec_() != QtGui.QDialog.Accepted:
return
def pageSizes(self):
"""Return a tuple of dpi, pageRect (page without margins) and
availRect (page without margins and header/footer)"""
dpi = min(self.printer.logicalDpiX(), self.printer.logicalDpiY())
minXMargin = (self.printer.paperRect().width() -
self.printer.pageRect().width()) // 2
minYMargin = (self.printer.paperRect().height() -
self.printer.pageRect().height()) // 2
xMargin = int(globalref.options.numData('HorizMargin',
optiondefaults.minPrintMargin,
optiondefaults.maxPrintMargin)
* dpi)
yMargin = int(globalref.options.numData('VertMargin',
optiondefaults.minPrintMargin,
optiondefaults.maxPrintMargin)
* dpi)
xMargin = max(xMargin, minXMargin)
yMargin = max(yMargin, minYMargin)
pageRect = QtCore.QRect(xMargin, yMargin,
self.printer.width() - 2 * xMargin,
self.printer.height() - 2 * yMargin)
numCols = globalref.options.intData('PrintNumCols', 1,
optiondefaults.maxNumCol)
colSpacing = globalref.options.numData('PrintColSpace', 0.0,
optiondefaults.maxPrintMargin)
colSpacing = int(dpi * colSpacing)
colWidth = (pageRect.width() - colSpacing * (numCols - 1)) // numCols
lineHeight = QtGui.QFontMetrics(self.printFont, self.printer).\
lineSpacing()
headerHt = globalref.docRef.fileInfoFormat.getHeaderFooter(True) and \
2 * lineHeight or 0
footerHt = globalref.docRef.fileInfoFormat.getHeaderFooter(False) and \
2 * lineHeight or 0
availRects = []
for colNum in range(numCols):
colStart = xMargin + colNum * (colSpacing + colWidth)
rect = QtCore.QRect(colStart, yMargin + headerHt, colWidth,
pageRect.height() - headerHt - footerHt)
availRects.append(rect)
return (dpi, pageRect, availRects)
def textHeight(self, text, width):
"""Returns height of rich text in printer setup"""
# subtract one pixel for roundoff error
doc = self.document(text, width - 1)
layout = doc.documentLayout()
layout.setPaintDevice(self.printer)
return layout.documentSize().height()
def document(self, text, width):
"""Return a QTextDocument for height calculation & painting"""
doc = QtGui.QTextDocument()
doc.setHtml(text)
doc.setDefaultFont(self.printFont)
frameFormat = doc.rootFrame().frameFormat()
frameFormat.setBorder(0)
frameFormat.setMargin(0)
frameFormat.setPadding(0)
doc.rootFrame().setFrameFormat(frameFormat)
# TODO change to width setting only after Qt 4.2
doc.setPageSize(QtCore.QSizeF(width, width * 10000))
return doc
def setPrintContent(self):
"""Add tree content to self.printList"""
self.printFont = self.getOptionPrintFont()
if not self.printFont or \
globalref.options.boolData('PrintUseOutputFont'):
self.printFont = self.getOutputFont()
dpi, pageRect, availRects = self.pageSizes()
addBranches = True
mode = globalref.options.strData('PrintWhat')
if mode == 'tree':
nodeList = [globalref.docRef.root]
elif mode == 'node':
nodeList = globalref.docRef.selection
addBranches = False
else: # branches
nodeList = globalref.docRef.selection.uniqueBranches()
includeRoot = globalref.options.boolData('PrintRoot')
openOnly = globalref.options.boolData('PrintOpenOnly')
indent = globalref.options.numData('PrintIndentOffset', 0.0,
optiondefaults.maxPrintIndent)
indent = int(dpi * indent)
outGroup = output.OutputGroup()
if addBranches:
for node in nodeList:
branch = node.outputItemList(includeRoot, openOnly)
outGroup.extend(branch)
else:
outGroup.extend([node.outputItem() for node in nodeList])
outGroup.setHeights(self.textHeight, availRects[0].width(), indent)
if globalref.options.boolData('PrintLines'):
self.pageActiveLevels = []
else:
self.pageActiveLevels = None
firstChildAdjust = globalref.options.boolData('PrintKeepFirstChild') \
and 0.2 or 0.0
self.printList = outGroup.splitPages(availRects[0].height(),
self.pageActiveLevels,
firstChildAdjust)
for group in self.printList:
group.joinPrefixItems()
group.addPrefix()
if globalref.docRef.lineBreaks:
group.addBreaks()
numCols = len(availRects)
maxPage = len(self.printList) // numCols
if len(self.printList) % numCols:
maxPage += 1
globalref.docRef.fileInfoItem.data[nodeformat.FileInfoFormat.
numPagesFieldName] = repr(maxPage)
def filePrintPreview(self):
"""Show a preview of the printing results"""
QtGui.QApplication.setOverrideCursor(QtCore.Qt.WaitCursor)
self.setPrintContent()
numPages = int(globalref.docRef.fileInfoItem.data[nodeformat.
FileInfoFormat.
numPagesFieldName])
dlg = printdialogs.PrintPrevDlg(self, numPages,
self.printer.paperRect(),
self.printPage, globalref.mainWin)
dlg.resize(globalref.options.intData('PrintPrevXSize', 10, 10000),
globalref.options.intData('PrintPrevYSize', 10, 10000))
if globalref.options.boolData('SaveWindowGeom'):
dlg.move(globalref.options.intData('PrintPrevXPos', 0, 10000),
globalref.options.intData('PrintPrevYPos', 0, 10000))
QtGui.QApplication.restoreOverrideCursor()
result = dlg.exec_()
if globalref.options.boolData('SaveWindowGeom'):
globalref.options.changeData('PrintPrevXSize', dlg.width(), True)
globalref.options.changeData('PrintPrevYSize', dlg.height(), True)
globalref.options.changeData('PrintPrevXPos', dlg.x(), True)
globalref.options.changeData('PrintPrevYPos', dlg.y(), True)
globalref.options.writeChanges()
if result == QtGui.QDialog.Accepted:
self.filePrint()
def printPage(self, pageNum, painter):
"""Send pageNum to painter"""
dpi, pageRect, availRects = self.pageSizes()
numCols = len(availRects)
painter.setFont(self.printFont)
globalref.docRef.fileInfoItem.data[nodeformat.FileInfoFormat.
pageNumFieldName] = repr(pageNum)
addLines = globalref.options.boolData('PrintLines')
indent = globalref.options.numData('PrintIndentOffset', 0.0,
optiondefaults.maxPrintIndent)
indent = int(dpi * indent)
xLineDelta = indent // 2
yLineDelta = 0
if globalref.docRef.spaceBetween:
yLineDelta = QtGui.QFontMetrics(self.printFont).ascent()
linePos = QtGui.QFontMetrics(self.printFont).ascent() // 2 + 1
header = globalref.docRef.fileInfoFormat.getHeaderFooter(True)
if header:
doc = self.document(header, pageRect.width())
layout = doc.documentLayout()
painter.save()
painter.translate(pageRect.left(), pageRect.top())
layout.draw(painter,
QtGui.QAbstractTextDocumentLayout.PaintContext())
painter.restore()
for colNum, colRect in enumerate(availRects):
listIndex = (pageNum - 1) * numCols + colNum
if listIndex >= len(self.printList) or \
not self.printList[listIndex]:
break
yPos = colRect.top()
lineStarts = [yPos] * (self.printList[listIndex][0].level + 1)
for item in self.printList[listIndex]:
xPos = colRect.left() + indent * item.level
doc = self.document(''.join(item.textLines),
colRect.right() - xPos)
layout = doc.documentLayout()
painter.save()
painter.translate(xPos, yPos)
layout.draw(painter,
QtGui.QAbstractTextDocumentLayout.PaintContext())
painter.restore()
if addLines:
if item.level:
painter.drawLine(xPos - xLineDelta, yPos + linePos,
xPos - 2, yPos + linePos)
if len(lineStarts) > item.level:
yPrev = lineStarts[item.level]
lineStarts = lineStarts[:item.level]
else:
yPrev = yPos - yLineDelta
painter.drawLine(xPos - xLineDelta, yPrev,
xPos - xLineDelta, yPos + linePos)
lineStarts.append(yPos + linePos)
else:
lineStarts = [0]
yPos += item.height
if addLines and listIndex < len(self.pageActiveLevels):
for level in self.pageActiveLevels[listIndex]:
xPos = colRect.left() + indent * level - xLineDelta
if len(lineStarts) > level:
yStart = lineStarts[level]
else:
yStart = colRect.top()
painter.drawLine(xPos, yStart, xPos, colRect.bottom())
footer = globalref.docRef.fileInfoFormat.getHeaderFooter(False)
if footer:
doc = self.document(footer, pageRect.width())
layout = doc.documentLayout()
painter.save()
lineHeight = QtGui.QFontMetrics(self.printFont, self.printer).\
lineSpacing()
painter.translate(pageRect.left(), pageRect.bottom() - lineHeight)
layout.draw(painter,
QtGui.QAbstractTextDocumentLayout.PaintContext())
painter.restore()
def filePrint(self):
"""Print file starting from selected item"""
QtGui.QApplication.setOverrideCursor(QtCore.Qt.WaitCursor)
self.setPrintContent()
QtGui.QApplication.restoreOverrideCursor()
printDlg = QtGui.QPrintDialog(self.printer, globalref.mainWin)
maxPage = int(globalref.docRef.fileInfoItem.data[nodeformat.
FileInfoFormat.
numPagesFieldName])
printDlg.setMinMax(1, maxPage)
if printDlg.exec_() != QtGui.QDialog.Accepted:
return
QtGui.QApplication.setOverrideCursor(QtCore.Qt.WaitCursor)
self.setPrintContent()
minPage = max(self.printer.fromPage(), 1)
maxPage = int(globalref.docRef.fileInfoItem.data[nodeformat.
FileInfoFormat.
numPagesFieldName])
if 1 <= self.printer.toPage() < maxPage:
maxPage = self.printer.toPage()
if self.printer.pageOrder() == QtGui.QPrinter.FirstPageFirst:
seq = range(minPage, maxPage + 1)
else:
seq = range(maxPage, minPage - 1, -1)
painter = QtGui.QPainter()
if not painter.begin(self.printer):
QtGui.QApplication.restoreOverrideCursor()
QtGui.QMessageBox.warning(globalref.mainWin, 'TreeLine',
_('Error initializing printer'))
return
self.printPage(seq.pop(0), painter)
for num in seq:
self.printer.newPage()
self.printPage(num, painter)
painter.end()
QtGui.QApplication.restoreOverrideCursor()
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