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-rw-r--r--src/plugins/printsupport/windows/qwindowsprintdevice.cpp156
1 files changed, 68 insertions, 88 deletions
diff --git a/src/plugins/printsupport/windows/qwindowsprintdevice.cpp b/src/plugins/printsupport/windows/qwindowsprintdevice.cpp
index 6f5fb417c6..7e6eb7c559 100644
--- a/src/plugins/printsupport/windows/qwindowsprintdevice.cpp
+++ b/src/plugins/printsupport/windows/qwindowsprintdevice.cpp
@@ -1,6 +1,7 @@
/****************************************************************************
**
** Copyright (C) 2014 John Layt <jlayt@kde.org>
+** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
@@ -80,6 +81,22 @@ static QPrint::InputSlot paperBinToInputSlot(int windowsId, const QString &name)
return slot;
}
+static LPDEVMODE getDevmode(HANDLE hPrinter, const QString &printerId)
+{
+ LPWSTR printerIdUtf16 = const_cast<LPWSTR>(reinterpret_cast<LPCWSTR>(printerId.utf16()));
+ // Allocate the required DEVMODE buffer
+ LONG dmSize = DocumentProperties(NULL, hPrinter, printerIdUtf16, NULL, NULL, 0);
+ if (dmSize < 0)
+ return Q_NULLPTR;
+ LPDEVMODE pDevMode = reinterpret_cast<LPDEVMODE>(malloc(dmSize));
+ // Get the default DevMode
+ LONG result = DocumentProperties(NULL, hPrinter, printerIdUtf16, pDevMode, NULL, DM_OUT_BUFFER);
+ if (result != IDOK) {
+ free(pDevMode);
+ pDevMode = Q_NULLPTR;
+ }
+ return pDevMode;
+}
QWindowsPrintDevice::QWindowsPrintDevice()
: QPlatformPrintDevice(),
@@ -197,26 +214,21 @@ QPageSize QWindowsPrintDevice::defaultPageSize() const
QPageSize pageSize;
- // Allocate the required DEVMODE buffer
- DWORD dmSize = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), NULL, NULL, 0);
- LPDEVMODE pDevMode = (LPDEVMODE)malloc(dmSize);
-
- // Get the default DevMode
- DWORD result = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), pDevMode, NULL, DM_OUT_BUFFER);
-
- // Get the default paper size
- if (result == IDOK && pDevMode->dmFields & DM_PAPERSIZE) {
- // Find the supported page size that matches, in theory default should be one of them
- foreach (const QPageSize &ps, m_pageSizes) {
- if (ps.windowsId() == pDevMode->dmPaperSize) {
- pageSize = ps;
- break;
+ if (LPDEVMODE pDevMode = getDevmode(m_hPrinter, m_id)) {
+ // Get the default paper size
+ if (pDevMode->dmFields & DM_PAPERSIZE) {
+ // Find the supported page size that matches, in theory default should be one of them
+ foreach (const QPageSize &ps, m_pageSizes) {
+ if (ps.windowsId() == pDevMode->dmPaperSize) {
+ pageSize = ps;
+ break;
+ }
}
}
+ // Clean-up
+ free(pDevMode);
}
- // Clean-up
- free(pDevMode);
return pageSize;
}
@@ -232,20 +244,14 @@ QMarginsF QWindowsPrintDevice::printableMargins(const QPageSize &pageSize,
QScopedArrayPointer<BYTE> buffer(new BYTE[needed]);
if (GetPrinter(m_hPrinter, 2, buffer.data(), needed, &needed)) {
PPRINTER_INFO_2 info = reinterpret_cast<PPRINTER_INFO_2>(buffer.data());
- DEVMODE *devMode = info->pDevMode;
+ LPDEVMODE devMode = info->pDevMode;
bool separateDevMode = false;
if (!devMode) {
// GetPrinter() didn't include the DEVMODE. Get it a different way.
- LONG result = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(),
- NULL, NULL, 0);
- devMode = (DEVMODE *)malloc(result);
- separateDevMode = true;
- result = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(),
- devMode, NULL, DM_OUT_BUFFER);
- if (result != IDOK) {
- free(devMode);
+ devMode = getDevmode(m_hPrinter, m_id);
+ if (!devMode)
return margins;
- }
+ separateDevMode = true;
}
HDC pDC = CreateDC(NULL, (LPWSTR)m_id.utf16(), NULL, devMode);
@@ -297,23 +303,17 @@ int QWindowsPrintDevice::defaultResolution() const
{
int resolution = 72; // TODO Set a sensible default?
- // Allocate the required DEVMODE buffer
- DWORD dmSize = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), NULL, NULL, 0);
- LPDEVMODE pDevMode = (LPDEVMODE)malloc(dmSize);
-
- // Get the default DevMode
- DWORD result = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), pDevMode, NULL, DM_OUT_BUFFER);
-
- // Get the default resolution
- if (result == IDOK && pDevMode->dmFields & DM_YRESOLUTION) {
- if (pDevMode->dmPrintQuality > 0)
- resolution = pDevMode->dmPrintQuality;
- else
- resolution = pDevMode->dmYResolution;
+ if (LPDEVMODE pDevMode = getDevmode(m_hPrinter, m_id)) {
+ // Get the default resolution
+ if (pDevMode->dmFields & DM_YRESOLUTION) {
+ if (pDevMode->dmPrintQuality > 0)
+ resolution = pDevMode->dmPrintQuality;
+ else
+ resolution = pDevMode->dmYResolution;
+ }
+ // Clean-up
+ free(pDevMode);
}
-
- // Clean-up
- free(pDevMode);
return resolution;
}
@@ -346,26 +346,20 @@ QPrint::InputSlot QWindowsPrintDevice::defaultInputSlot() const
{
QPrint::InputSlot inputSlot = QPlatformPrintDevice::defaultInputSlot();;
- // Allocate the required DEVMODE buffer
- DWORD dmSize = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), NULL, NULL, 0);
- LPDEVMODE pDevMode = (LPDEVMODE)malloc(dmSize);
-
- // Get the default DevMode
- DWORD result = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), pDevMode, NULL, DM_OUT_BUFFER);
-
- // Get the default input slot
- if (result == IDOK && pDevMode->dmFields & DM_DEFAULTSOURCE) {
- QPrint::InputSlot tempSlot = paperBinToInputSlot(pDevMode->dmDefaultSource, QString());
- foreach (const QPrint::InputSlot &slot, supportedInputSlots()) {
- if (slot.key == tempSlot.key) {
- inputSlot = slot;
- break;
+ if (LPDEVMODE pDevMode = getDevmode(m_hPrinter, m_id)) {
+ // Get the default input slot
+ if (pDevMode->dmFields & DM_DEFAULTSOURCE) {
+ QPrint::InputSlot tempSlot = paperBinToInputSlot(pDevMode->dmDefaultSource, QString());
+ foreach (const QPrint::InputSlot &slot, supportedInputSlots()) {
+ if (slot.key == tempSlot.key) {
+ inputSlot = slot;
+ break;
+ }
}
}
+ // Clean-up
+ free(pDevMode);
}
-
- // Clean-up
- free(pDevMode);
return inputSlot;
}
@@ -392,23 +386,17 @@ QPrint::DuplexMode QWindowsPrintDevice::defaultDuplexMode() const
{
QPrint::DuplexMode duplexMode = QPrint::DuplexNone;
- // Allocate the required DEVMODE buffer
- DWORD dmSize = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), NULL, NULL, 0);
- LPDEVMODE pDevMode = (LPDEVMODE)malloc(dmSize);
-
- // Get the default DevMode
- DWORD result = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), pDevMode, NULL, DM_OUT_BUFFER);
-
- // Get the default duplex mode
- if (result == IDOK && pDevMode->dmFields & DM_DUPLEX) {
- if (pDevMode->dmDuplex == DMDUP_VERTICAL)
- duplexMode = QPrint::DuplexLongSide;
- else if (pDevMode->dmDuplex == DMDUP_HORIZONTAL)
- duplexMode = QPrint::DuplexShortSide;
+ if (LPDEVMODE pDevMode = getDevmode(m_hPrinter, m_id)) {
+ // Get the default duplex mode
+ if (pDevMode->dmFields & DM_DUPLEX) {
+ if (pDevMode->dmDuplex == DMDUP_VERTICAL)
+ duplexMode = QPrint::DuplexLongSide;
+ else if (pDevMode->dmDuplex == DMDUP_HORIZONTAL)
+ duplexMode = QPrint::DuplexShortSide;
+ }
+ // Clean-up
+ free(pDevMode);
}
-
- // Clean-up
- free(pDevMode);
return duplexMode;
}
@@ -430,21 +418,13 @@ QPrint::ColorMode QWindowsPrintDevice::defaultColorMode() const
QPrint::ColorMode colorMode = QPrint::GrayScale;
- // Allocate the required DEVMODE buffer
- DWORD dmSize = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), NULL, NULL, 0);
- LPDEVMODE pDevMode = (LPDEVMODE)malloc(dmSize);
-
- // Get the default DevMode
- DWORD result = DocumentProperties(NULL, m_hPrinter, (LPWSTR)m_id.utf16(), pDevMode, NULL, DM_OUT_BUFFER);
-
- // Get the default color mode
- if (result == IDOK && pDevMode->dmFields & DM_COLOR) {
- if (pDevMode->dmColor == DMCOLOR_COLOR)
+ if (LPDEVMODE pDevMode = getDevmode(m_hPrinter, m_id)) {
+ // Get the default color mode
+ if (pDevMode->dmFields & DM_COLOR && pDevMode->dmColor == DMCOLOR_COLOR)
colorMode = QPrint::Color;
+ // Clean-up
+ free(pDevMode);
}
-
- // Clean-up
- free(pDevMode);
return colorMode;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 22:53:55 +0000