Qt-Printing

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This is the hub page for the Qt Printing module. This page will link to developer documentation for the module.

The Qt Printing module maintainer is John Layt (jlayt on Devnet or johnlayt on JIRA/Gerrit) <jlayt@kde.org>.

Qt 5.0 Status

Status as at 2010-06-22

Qt 5.0 Release Task

Linux - In Testing, mostly works

macOS - In Testing, mostly works

Windows - Untested by me.

Todo:

  • Complete removal of QAbstractPageSetupWidget
  • Still time for removal of QAbstractPrintDialog?
  • Clean-ups and bug fixes in Linux print dialog
  • Write a feature matrix for print support on different platforms
  • Rewrite tst_qprinter to correctly test platform options per feature matrix, currently very broken
  • Write manual printing test plan for features that cannot be auto tested
  • Develop auto tests that add/delete printers to test QPrinterInfo
  • Review platform specific code still in core

Release criteria

The following criteria must be met on all 3 platforms for release:

  • No blocker bugs open
  • All unit tests not failing, i.e. passing or skipped for valid reasons
  • Platform Plugin fully implemented for all required features
  • Print to printer tested visually, no font or layout issues
  • Print to PDF tested visually, no font or layout issues
  • Print dialog tested, all options function as expected

The following tasks also performed:

  • API reviewed for any last clean-ups
  • Build system reviewed
  • Includes reviewed
  • Documentation reviewed

For testing painted output, use the example/richtext/textedit or Qt Assistant.

Bugs

Bugs are assigned to the GUI: Printing component in JIRA.

The following are Tasks to track specific areas within Qt Printing:

QTBUG-25385 QPrinter - New Printing Module requested features
QTBUG-25384 QPrinter - Windows related issues
QTBUG-25383 QPrinter - macOS related issues
QTBUG-25381 QPrinter - Qt 5.0 Release Task
QTBUG-25380 QPrinter - Page Size and Margin Related Issues
QTBUG-25379 QPrinter - PDF Generator Related Issues
QTBUG-25378 QPrinter - Font Related Issues
QTBUG-25377 QPrinter - Remote Printer Issues
QTBUG-25372 QPrinter - CUPS Settings In Linux Print Dialog

Qt 4 Printing Support in QtGui / QtWidgets

Qt 5 QtPrintSupport Module

The Qt 4 printing code was moved in a new library QtPrintingSupport and a new PrintSupport platform plugin. The code can be found in qtbase/src/printsupport and qtbase/plugins/printsupport

QPrintEngine Keys

Key Type Win Set Win Get Mac Set Mac Get PDF Set PDF Get CUPS Set CUPS Get
PPK_CollateCopies Setting y FALSE n FALSE y y y y
PPK_ColorMode Setting y y n Color y y y y
PPK_Creator Setting n NULL n NULL y y y y
PPK_DocumentName Setting y y n NULL y y y y
PPK_FullPage Setting y y y y y y y y
PPK_NumberOfCopies Setting y 1 y 1 y y y 1
PPK_Orientation Setting y y y y y y y y
PPK_OutputFileName Setting y y y y y y y y
PPK_PageOrder Setting n NULL n NULL y y y y
PPK_PageSize Setting y y y y y y y y
PPK_PaperSize = PPK_PageSize Setting y y y y y y y y
PPK_PaperSource Setting y y n NULL y y y y
PPK_PrinterName Setting y y y y y y y y
PPK_PrinterProgram Setting n NULL n NULL y y y y
PPK_Resolution Setting y y y y y y y y
PPK_SelectionOption Setting n NULL n NULL y y y y
PPK_WindowsPageSize Setting y y n NULL n NULL n NULL
PPK_FontEmbedding Setting n NULL n NULL y y y y
PPK_Duplex Setting n NULL n NULL y y y y
PPK_CustomPaperSize Setting y y y y y y y y
PPK_PageMargins Setting y y y y y y y y
PPK_CopyCount Setting y y y y y y y y
PPK_PageRect Derived n y n y n y n y
PPK_PaperRect Derived n y n y n y n y
PPK_SupportedResolutions Feature n y n y n 72 n 72
PPK_PaperSources Feature n y n NULL n NULL n NULL
PPK_SupportsMultipleCopies Feature n TRUE n TRUE n FALSE n TRUE
PPK_SuppressSystemPrintStatus Unused? n NULL n NULL n NULL n NULL

Architecture

macOS Differences

The macOS paint engine, print engine and print support plugin actually live in the Cocoa Platform Plugin in qtbase/src/plugins/platform/cocoa due to dependencies between the code. It is hoped to clean these up in a future release.

Qt 5 QtPrint Planning