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office-gobmx/cui/source/dialogs/QrCodeGenDialog.cxx
homeboy445 a20c9604f1 QR Code Dialog: Change term 'border' to 'margin' 
This adds a margin around the qr code (white space), not a border.

Change-Id: If3e74dfe19dd7f9c063eaa6439810d617a99cb45
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/112831
Tested-by: Samuel Mehrbrodt <samuel.mehrbrodt@allotropia.de>
Reviewed-by: Samuel Mehrbrodt <samuel.mehrbrodt@allotropia.de>
2021-03-24 08:36:44 +01:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <QrCodeGenDialog.hxx>
#include <comphelper/processfactory.hxx>
#include <tools/stream.hxx>
#include <dialmgr.hxx>
#include <strings.hrc>
#include <unotools/streamwrap.hxx>
#include <utility>
#include <vcl/svapp.hxx>
#if ENABLE_ZXING
#include <rtl/strbuf.hxx>
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wshadow"
#endif
#include <BarcodeFormat.h>
#include <BitArray.h>
#include <BitMatrix.h>
#include <MultiFormatWriter.h>
#include <TextUtfEncoding.h>
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
#endif // ENABLE_ZXING
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/drawing/XDrawPageSupplier.hpp>
#include <com/sun/star/drawing/XShape.hpp>
#include <com/sun/star/graphic/GraphicProvider.hpp>
#include <com/sun/star/graphic/XGraphic.hpp>
#include <com/sun/star/drawing/QRCode.hpp>
#include <com/sun/star/drawing/QRCodeErrorCorrection.hpp>
#include <com/sun/star/graphic/XGraphicProvider.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/sheet/XSpreadsheet.hpp>
#include <com/sun/star/sheet/XSpreadsheetView.hpp>
#include <com/sun/star/text/TextContentAnchorType.hpp>
#include <com/sun/star/text/XTextContent.hpp>
#include <com/sun/star/text/XTextViewCursor.hpp>
#include <com/sun/star/text/XTextViewCursorSupplier.hpp>
#include <com/sun/star/drawing/XDrawView.hpp>
#include <com/sun/star/drawing/XDrawPage.hpp>
using namespace css;
using namespace css::uno;
using namespace css::beans;
using namespace css::container;
using namespace css::frame;
using namespace css::io;
using namespace css::lang;
using namespace css::sheet;
using namespace css::text;
using namespace css::drawing;
using namespace css::graphic;
namespace
{
#if ENABLE_ZXING
// Implementation adapted from the answer: https://stackoverflow.com/questions/10789059/create-qr-code-in-vector-image/60638350#60638350
OString ConvertToSVGFormat(const ZXing::BitMatrix& bitmatrix)
{
OStringBuffer sb;
const int width = bitmatrix.width();
const int height = bitmatrix.height();
ZXing::BitArray row(width);
sb.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\" viewBox=\"0 0 "
+ OString::number(width) + " " + OString::number(height)
+ "\" stroke=\"none\">\n"
"<path d=\"");
for (int i = 0; i < height; ++i)
{
bitmatrix.getRow(i, row);
for (int j = 0; j < width; ++j)
{
if (row.get(j))
{
sb.append("M" + OString::number(j) + "," + OString::number(i) + "h1v1h-1z");
}
}
}
sb.append("\"/>\n</svg>");
return sb.toString();
}
#endif
OString GenerateQRCode(const OUString& aQRText, tools::Long aQRECC, int aQRBorder)
{
#if ENABLE_ZXING
// Associated ZXing error correction levels (0-8) to our constants arbitrarily.
int bqrEcc = 1;
switch (aQRECC)
{
case css::drawing::QRCodeErrorCorrection::LOW:
{
bqrEcc = 1;
break;
}
case css::drawing::QRCodeErrorCorrection::MEDIUM:
{
bqrEcc = 3;
break;
}
case css::drawing::QRCodeErrorCorrection::QUARTILE:
{
bqrEcc = 5;
break;
}
case css::drawing::QRCodeErrorCorrection::HIGH:
{
bqrEcc = 7;
break;
}
}
OString o = OUStringToOString(aQRText, RTL_TEXTENCODING_UTF8);
std::string QRText(o.getStr(), o.getLength());
ZXing::BarcodeFormat format = ZXing::BarcodeFormatFromString("QR_CODE");
auto writer = ZXing::MultiFormatWriter(format).setMargin(aQRBorder).setEccLevel(bqrEcc);
writer.setEncoding(ZXing::CharacterSet::UTF8);
ZXing::BitMatrix bitmatrix = writer.encode(ZXing::TextUtfEncoding::FromUtf8(QRText), 0, 0);
return ConvertToSVGFormat(bitmatrix);
#else
(void)aQRText;
(void)aQRECC;
(void)aQRBorder;
return OString();
#endif
}
}
QrCodeGenDialog::QrCodeGenDialog(weld::Widget* pParent, Reference<XModel> xModel,
bool bEditExisting)
: GenericDialogController(pParent, "cui/ui/qrcodegen.ui", "QrCodeGenDialog")
, m_xModel(std::move(xModel))
, m_xEdittext(m_xBuilder->weld_entry("edit_text"))
, m_xECC{ m_xBuilder->weld_radio_button("button_low"),
m_xBuilder->weld_radio_button("button_medium"),
m_xBuilder->weld_radio_button("button_quartile"),
m_xBuilder->weld_radio_button("button_high") }
, m_xSpinBorder(m_xBuilder->weld_spin_button("edit_margin"))
#if ENABLE_ZXING
, mpParent(pParent)
#endif
{
if (!bEditExisting)
{
// TODO: This only works in Writer doc. Should also work in shapes
Reference<XIndexAccess> xSelections(m_xModel->getCurrentSelection(), UNO_QUERY);
if (xSelections.is())
{
Reference<XTextRange> xSelection(xSelections->getByIndex(0), UNO_QUERY);
if (xSelection.is())
m_xEdittext->set_text(xSelection->getString());
}
return;
}
Reference<container::XIndexAccess> xIndexAccess(m_xModel->getCurrentSelection(),
UNO_QUERY_THROW);
Reference<XPropertySet> xProps(xIndexAccess->getByIndex(0), UNO_QUERY_THROW);
// Read properties from selected QR Code
css::drawing::QRCode aQRCode;
xProps->getPropertyValue("QRCodeProperties") >>= aQRCode;
m_xEdittext->set_text(aQRCode.Payload);
//Get Error Correction Constant from selected QR Code
GetErrorCorrection(aQRCode.ErrorCorrection);
m_xSpinBorder->set_value(aQRCode.Border);
// Mark this as existing shape
m_xExistingShapeProperties = xProps;
}
short QrCodeGenDialog::run()
{
#if ENABLE_ZXING
short nRet;
while (true)
{
nRet = GenericDialogController::run();
if (nRet == RET_OK)
{
try
{
Apply();
break;
}
catch (const std::exception&)
{
std::unique_ptr<weld::MessageDialog> xBox(Application::CreateMessageDialog(
mpParent, VclMessageType::Warning, VclButtonsType::Ok,
CuiResId(RID_SVXSTR_QRCODEDATALONG)));
xBox->run();
}
}
else
break;
}
return nRet;
#else
return RET_CANCEL;
#endif
}
void QrCodeGenDialog::Apply()
{
#if ENABLE_ZXING
css::drawing::QRCode aQRCode;
aQRCode.Payload = m_xEdittext->get_text();
bool bLowECCActive(m_xECC[0]->get_active());
bool bMediumECCActive(m_xECC[1]->get_active());
bool bQuartileECCActive(m_xECC[2]->get_active());
if (bLowECCActive)
{
aQRCode.ErrorCorrection = css::drawing::QRCodeErrorCorrection::LOW;
}
else if (bMediumECCActive)
{
aQRCode.ErrorCorrection = css::drawing::QRCodeErrorCorrection::MEDIUM;
}
else if (bQuartileECCActive)
{
aQRCode.ErrorCorrection = css::drawing::QRCodeErrorCorrection::QUARTILE;
}
else
{
aQRCode.ErrorCorrection = css::drawing::QRCodeErrorCorrection::HIGH;
}
aQRCode.Border = m_xSpinBorder->get_value();
// Read svg and replace placeholder texts
OString aSvgImage = GenerateQRCode(aQRCode.Payload, aQRCode.ErrorCorrection, aQRCode.Border);
// Insert/Update graphic
SvMemoryStream aSvgStream(4096, 4096);
aSvgStream.WriteOString(aSvgImage);
Reference<XInputStream> xInputStream(new utl::OSeekableInputStreamWrapper(aSvgStream));
Reference<XComponentContext> xContext(comphelper::getProcessComponentContext());
Reference<XGraphicProvider> xProvider = css::graphic::GraphicProvider::create(xContext);
Sequence<PropertyValue> aMediaProperties(1);
aMediaProperties[0].Name = "InputStream";
aMediaProperties[0].Value <<= xInputStream;
Reference<XGraphic> xGraphic(xProvider->queryGraphic(aMediaProperties));
bool bIsExistingQRCode = m_xExistingShapeProperties.is();
Reference<XPropertySet> xShapeProps;
if (bIsExistingQRCode)
xShapeProps = m_xExistingShapeProperties;
else
xShapeProps.set(Reference<lang::XMultiServiceFactory>(m_xModel, UNO_QUERY_THROW)
->createInstance("com.sun.star.drawing.GraphicObjectShape"),
UNO_QUERY);
xShapeProps->setPropertyValue("Graphic", Any(xGraphic));
// Set QRCode properties
xShapeProps->setPropertyValue("QRCodeProperties", Any(aQRCode));
if (bIsExistingQRCode)
return;
// Default size
Reference<XShape> xShape(xShapeProps, UNO_QUERY);
awt::Size aShapeSize;
aShapeSize.Height = 4000;
aShapeSize.Width = 4000;
xShape->setSize(aShapeSize);
// Default anchoring
xShapeProps->setPropertyValue("AnchorType", Any(TextContentAnchorType_AT_PARAGRAPH));
const Reference<XServiceInfo> xServiceInfo(m_xModel, UNO_QUERY_THROW);
// Writer
if (xServiceInfo->supportsService("com.sun.star.text.TextDocument"))
{
Reference<XTextContent> xTextContent(xShape, UNO_QUERY_THROW);
Reference<XTextViewCursorSupplier> xViewCursorSupplier(m_xModel->getCurrentController(),
UNO_QUERY_THROW);
Reference<XTextViewCursor> xCursor = xViewCursorSupplier->getViewCursor();
// use cursor's XText - it might be in table cell, frame, ...
Reference<XText> const xText(xCursor->getText());
assert(xText.is());
xText->insertTextContent(xCursor, xTextContent, true);
return;
}
// Calc
else if (xServiceInfo->supportsService("com.sun.star.sheet.SpreadsheetDocument"))
{
Reference<XPropertySet> xSheetCell(m_xModel->getCurrentSelection(), UNO_QUERY_THROW);
awt::Point aCellPosition;
xSheetCell->getPropertyValue("Position") >>= aCellPosition;
xShape->setPosition(aCellPosition);
Reference<XSpreadsheetView> xView(m_xModel->getCurrentController(), UNO_QUERY_THROW);
Reference<XSpreadsheet> xSheet(xView->getActiveSheet(), UNO_SET_THROW);
Reference<XDrawPageSupplier> xDrawPageSupplier(xSheet, UNO_QUERY_THROW);
Reference<XDrawPage> xDrawPage(xDrawPageSupplier->getDrawPage(), UNO_SET_THROW);
Reference<XShapes> xShapes(xDrawPage, UNO_QUERY_THROW);
xShapes->add(xShape);
return;
}
//Impress and Draw
else if (xServiceInfo->supportsService("com.sun.star.presentation.PresentationDocument")
|| xServiceInfo->supportsService("com.sun.star.drawing.DrawingDocument"))
{
Reference<XDrawView> xView(m_xModel->getCurrentController(), UNO_QUERY_THROW);
Reference<XDrawPage> xPage(xView->getCurrentPage(), UNO_SET_THROW);
Reference<XShapes> xShapes(xPage, UNO_QUERY_THROW);
xShapes->add(xShape);
return;
}
else
{
//Not implemented for math,base and other apps.
throw uno::RuntimeException("Not implemented");
}
#endif
}
void QrCodeGenDialog::GetErrorCorrection(tools::Long ErrorCorrection)
{
switch (ErrorCorrection)
{
case css::drawing::QRCodeErrorCorrection::LOW:
{
m_xECC[0]->set_active(true);
break;
}
case css::drawing::QRCodeErrorCorrection::MEDIUM:
{
m_xECC[1]->set_active(true);
break;
}
case css::drawing::QRCodeErrorCorrection::QUARTILE:
{
m_xECC[2]->set_active(true);
break;
}
case css::drawing::QRCodeErrorCorrection::HIGH:
{
m_xECC[3]->set_active(true);
break;
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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