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-rw-r--r--vcl/source/pdf/PDFiumLibrary.cxx181
1 files changed, 53 insertions, 128 deletions
diff --git a/vcl/source/pdf/PDFiumLibrary.cxx b/vcl/source/pdf/PDFiumLibrary.cxx
index c665ce006d9e..a1552e9ca1bf 100644
--- a/vcl/source/pdf/PDFiumLibrary.cxx
+++ b/vcl/source/pdf/PDFiumLibrary.cxx
@@ -31,6 +31,7 @@
#include <vcl/BitmapWriteAccess.hxx>
#include <vcl/bitmapex.hxx>
#include <vcl/dibtools.hxx>
+#include <functional>
using namespace com::sun::star;
@@ -220,6 +221,35 @@ int CompatibleWriterCallback(FPDF_FILEWRITE* pFileWrite, const void* pData, unsi
pImpl->m_rStream.WriteBytes(pData, nSize);
return 1;
}
+
+OUString getUnicodeString(std::function<int(FPDF_WCHAR*, unsigned long)> aPDFiumFunctionCall)
+{
+ OUString sReturnText;
+
+ int nBytes = aPDFiumFunctionCall(nullptr, 0);
+ if (nBytes == 0)
+ return sReturnText;
+ assert(nBytes % 2 == 0);
+ nBytes /= 2;
+
+ std::vector<sal_Unicode> pText(nBytes, 0);
+
+ int nActualBytes = aPDFiumFunctionCall(reinterpret_cast<FPDF_WCHAR*>(pText.data()), nBytes * 2);
+ assert(nActualBytes % 2 == 0);
+ nActualBytes /= 2;
+ if (nActualBytes > 1)
+ {
+#ifdef OSL_BIGENDIAN
+ for (int i = 0; i != nActualBytes; ++i)
+ {
+ pText[i] = OSL_SWAPWORD(pText[i]);
+ }
+#endif
+ sReturnText = OUString(pText.data());
+ }
+
+ return sReturnText;
+}
}
namespace vcl::pdf
@@ -910,32 +940,10 @@ PDFiumPageObjectImpl::PDFiumPageObjectImpl(FPDF_PAGEOBJECT pPageObject)
OUString PDFiumPageObjectImpl::getText(std::unique_ptr<PDFiumTextPage> const& rTextPage)
{
- OUString sReturnText;
-
auto pTextPage = static_cast<PDFiumTextPageImpl*>(rTextPage.get());
- int nBytes = FPDFTextObj_GetText(mpPageObject, pTextPage->getPointer(), nullptr, 0);
- assert(nBytes % 2 == 0);
- nBytes /= 2;
-
- std::unique_ptr<sal_Unicode[]> pText(new sal_Unicode[nBytes]);
-
- int nActualBytes = FPDFTextObj_GetText(mpPageObject, pTextPage->getPointer(),
- reinterpret_cast<FPDF_WCHAR*>(pText.get()), nBytes * 2);
- assert(nActualBytes % 2 == 0);
- nActualBytes /= 2;
- if (nActualBytes > 1)
- {
-#if defined OSL_BIGENDIAN
- // The data returned by FPDFTextObj_GetText is documented to always be UTF-16LE:
- for (int i = 0; i != nActualBytes; ++i)
- {
- pText[i] = OSL_SWAPWORD(pText[i]);
- }
-#endif
- sReturnText = OUString(pText.get());
- }
-
- return sReturnText;
+ return getUnicodeString([this, pTextPage](FPDF_WCHAR* buffer, unsigned long length) {
+ return FPDFTextObj_GetText(mpPageObject, pTextPage->getPointer(), buffer, length);
+ });
}
PDFPageObjectType PDFiumPageObjectImpl::getType()
@@ -1390,98 +1398,36 @@ Color PDFiumAnnotationImpl::getFontColor(PDFiumDocument* pDoc)
OUString PDFiumAnnotationImpl::getFormFieldAlternateName(PDFiumDocument* pDoc)
{
- auto pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
- OUString aString;
- unsigned long nSize = FPDFAnnot_GetFormFieldAlternateName(pDocImpl->getFormHandlePointer(),
- mpAnnotation, nullptr, 0);
- assert(nSize % 2 == 0);
- nSize /= 2;
- if (nSize > 1)
- {
- std::unique_ptr<sal_Unicode[]> pText(new sal_Unicode[nSize]);
- unsigned long nStringSize = FPDFAnnot_GetFormFieldAlternateName(
- pDocImpl->getFormHandlePointer(), mpAnnotation,
- reinterpret_cast<FPDF_WCHAR*>(pText.get()), nSize * 2);
- assert(nStringSize % 2 == 0);
- nStringSize /= 2;
- if (nStringSize > 0)
- {
-#if defined OSL_BIGENDIAN
- for (unsigned long i = 0; i != nStringSize; ++i)
- {
- pText[i] = OSL_SWAPWORD(pText[i]);
- }
-#endif
- aString = OUString(pText.get());
- }
- }
- return aString;
+ auto* pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
+ return getUnicodeString([this, pDocImpl](FPDF_WCHAR* buffer, unsigned long length) {
+ return FPDFAnnot_GetFormFieldAlternateName(pDocImpl->getFormHandlePointer(), mpAnnotation,
+ buffer, length);
+ });
}
OUString PDFiumAnnotationImpl::getFormFieldValue(PDFiumDocument* pDoc)
{
- auto pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
- OUString aString;
- unsigned long nSize
- = FPDFAnnot_GetFormFieldValue(pDocImpl->getFormHandlePointer(), mpAnnotation, nullptr, 0);
- assert(nSize % 2 == 0);
- nSize /= 2;
- if (nSize > 1)
- {
- std::unique_ptr<sal_Unicode[]> pText(new sal_Unicode[nSize]);
- unsigned long nStringSize
- = FPDFAnnot_GetFormFieldValue(pDocImpl->getFormHandlePointer(), mpAnnotation,
- reinterpret_cast<FPDF_WCHAR*>(pText.get()), nSize * 2);
- assert(nStringSize % 2 == 0);
- nStringSize /= 2;
- if (nStringSize > 0)
- {
-#if defined OSL_BIGENDIAN
- for (unsigned long i = 0; i != nStringSize; ++i)
- {
- pText[i] = OSL_SWAPWORD(pText[i]);
- }
-#endif
- aString = OUString(pText.get());
- }
- }
- return aString;
+ auto* pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
+ return getUnicodeString([this, pDocImpl](FPDF_WCHAR* buffer, unsigned long length) {
+ return FPDFAnnot_GetFormFieldValue(pDocImpl->getFormHandlePointer(), mpAnnotation, buffer,
+ length);
+ });
}
int PDFiumAnnotationImpl::getOptionCount(PDFiumDocument* pDoc)
{
- auto pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
+ auto* pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
return FPDFAnnot_GetOptionCount(pDocImpl->getFormHandlePointer(), mpAnnotation);
}
OUString PDFiumAnnotationImpl::getFormAdditionalActionJavaScript(PDFiumDocument* pDoc,
PDFAnnotAActionType eEvent)
{
- auto pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
- OUString aString;
- unsigned long nSize = FPDFAnnot_GetFormAdditionalActionJavaScript(
- pDocImpl->getFormHandlePointer(), mpAnnotation, static_cast<int>(eEvent), nullptr, 0);
- assert(nSize % 2 == 0);
- nSize /= 2;
- if (nSize > 1)
- {
- std::unique_ptr<sal_Unicode[]> pText(new sal_Unicode[nSize]);
- unsigned long nStringSize = FPDFAnnot_GetFormAdditionalActionJavaScript(
- pDocImpl->getFormHandlePointer(), mpAnnotation, static_cast<int>(eEvent),
- reinterpret_cast<FPDF_WCHAR*>(pText.get()), nSize * 2);
- assert(nStringSize % 2 == 0);
- nStringSize /= 2;
- if (nStringSize > 0)
- {
-#if defined OSL_BIGENDIAN
- for (unsigned long i = 0; i != nStringSize; ++i)
- {
- pText[i] = OSL_SWAPWORD(pText[i]);
- }
-#endif
- aString = OUString(pText.get());
- }
- }
- return aString;
+ auto* pDocImpl = static_cast<PDFiumDocumentImpl*>(pDoc);
+ return getUnicodeString([this, pDocImpl, eEvent](FPDF_WCHAR* buffer, unsigned long length) {
+ return FPDFAnnot_GetFormAdditionalActionJavaScript(pDocImpl->getFormHandlePointer(),
+ mpAnnotation, static_cast<int>(eEvent),
+ buffer, length);
+ });
}
namespace
@@ -1539,30 +1485,9 @@ PDFObjectType PDFiumAnnotationImpl::getValueType(OString const& rKey)
OUString PDFiumAnnotationImpl::getString(OString const& rKey)
{
- OUString rString;
- unsigned long nSize = FPDFAnnot_GetStringValue(mpAnnotation, rKey.getStr(), nullptr, 0);
- assert(nSize % 2 == 0);
- nSize /= 2;
- if (nSize > 1)
- {
- std::unique_ptr<sal_Unicode[]> pText(new sal_Unicode[nSize]);
- unsigned long nStringSize = FPDFAnnot_GetStringValue(
- mpAnnotation, rKey.getStr(), reinterpret_cast<FPDF_WCHAR*>(pText.get()), nSize * 2);
- assert(nStringSize % 2 == 0);
- nStringSize /= 2;
- if (nStringSize > 0)
- {
-#if defined OSL_BIGENDIAN
- // The data returned by FPDFAnnot_GetStringValue is documented to always be UTF-16LE:
- for (unsigned long i = 0; i != nStringSize; ++i)
- {
- pText[i] = OSL_SWAPWORD(pText[i]);
- }
-#endif
- rString = OUString(pText.get());
- }
- }
- return rString;
+ return getUnicodeString([this, rKey](FPDF_WCHAR* buffer, unsigned long length) {
+ return FPDFAnnot_GetStringValue(mpAnnotation, rKey.getStr(), buffer, length);
+ });
}
std::vector<std::vector<basegfx::B2DPoint>> PDFiumAnnotationImpl::getInkStrokes()
generated by cgit (git 2.34.1) at 2024-12-26 20:38:02 +0000