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DocDiff application: filters

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Jakub Melka
2021-09-29 16:59:13 +02:00
parent 8508fe9ef2
commit dee2535983
5 changed files with 569 additions and 49 deletions
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110
Pdf4QtLib/sources/pdfdiff.h
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@ -35,28 +35,28 @@ namespace pdf
struct PDFDiffPageContext;
class PDFDiffResult
class PDF4QTLIBSHARED_EXPORT PDFDiffResult
{
public:
explicit PDFDiffResult();
enum class Type
enum class Type : uint32_t
{
Invalid,
PageMoved,
PageAdded,
PageRemoved,
RemovedTextCharContent,
RemovedVectorGraphicContent,
RemovedImageContent,
RemovedShadingContent,
AddedTextCharContent,
AddedVectorGraphicContent,
AddedImageContent,
AddedShadingContent,
TextReplaced,
TextAdded,
TextRemoved,
Invalid = 0x0000,
PageMoved = 0x0001,
PageAdded = 0x0002,
PageRemoved = 0x0004,
RemovedTextCharContent = 0x0008,
RemovedVectorGraphicContent = 0x0010,
RemovedImageContent = 0x0020,
RemovedShadingContent = 0x0040,
AddedTextCharContent = 0x0080,
AddedVectorGraphicContent = 0x0100,
AddedImageContent = 0x0200,
AddedShadingContent = 0x0400,
TextReplaced = 0x0800,
TextAdded = 0x1000,
TextRemoved = 0x2000,
};
using RectInfos = std::vector<std::pair<PDFInteger, QRectF>>;
@ -77,9 +77,33 @@ public:
/// \param index Index
QString getMessage(size_t index) const;
bool hasPageMoveDifferences() const { return m_typeFlags & FLAGS_PAGE_MOVE; }
bool hasTextDifferences() const { return m_typeFlags & FLAGS_TEXT; }
bool hasVectorGraphicsDifferences() const { return m_typeFlags & FLAGS_VECTOR_GRAPHICS; }
bool hasImageDifferences() const { return m_typeFlags & FLAGS_IMAGE; }
bool hasShadingDifferences() const { return m_typeFlags & FLAGS_SHADING; }
/// Filters results using given critera
/// \param filterPageMoveDifferences Filter page move differences?
/// \param filterTextDifferences Filter text diffferences?
/// \param filterVectorGraphicsDifferences Filter vector graphics differences?
/// \param filterImageDifferences Filter image differences?
/// \param filterShadingDifferences Filter shading differences?
PDFDiffResult filter(bool filterPageMoveDifferences,
bool filterTextDifferences,
bool filterVectorGraphicsDifferences,
bool filterImageDifferences,
bool filterShadingDifferences);
private:
friend class PDFDiff;
static constexpr uint32_t FLAGS_PAGE_MOVE = uint32_t(Type::PageMoved) | uint32_t(Type::PageAdded) | uint32_t(Type::PageRemoved);
static constexpr uint32_t FLAGS_TEXT = uint32_t(Type::RemovedTextCharContent) | uint32_t(Type::AddedTextCharContent) | uint32_t(Type::TextReplaced) | uint32_t(Type::TextAdded) | uint32_t(Type::TextRemoved);
static constexpr uint32_t FLAGS_VECTOR_GRAPHICS = uint32_t(Type::RemovedVectorGraphicContent) | uint32_t(Type::AddedVectorGraphicContent);
static constexpr uint32_t FLAGS_IMAGE = uint32_t(Type::RemovedImageContent) | uint32_t(Type::AddedImageContent);
static constexpr uint32_t FLAGS_SHADING = uint32_t(Type::RemovedShadingContent) | uint32_t(Type::AddedShadingContent);
void addPageMoved(PDFInteger pageIndex1, PDFInteger pageIndex2);
void addPageAdded(PDFInteger pageIndex);
void addPageRemoved(PDFInteger pageIndex);
@ -103,6 +127,8 @@ private:
const RectInfos& rectInfos1,
const RectInfos& rectInfos2);
void finalize();
/// Single content difference descriptor. It describes type
/// of difference (such as graphics, image, text change) on a page
/// or on a list of multiple pages.
@ -131,6 +157,50 @@ private:
RectInfos m_rects; ///< Rectangles with page indices
PDFOperationResult m_result;
QStringList m_strings;
uint32_t m_typeFlags = 0;
};
/// Class for result navigation, can go to next, or previous result.
class PDF4QTLIBSHARED_EXPORT PDFDiffResultNavigator : public QObject
{
Q_OBJECT
public:
explicit PDFDiffResultNavigator(QObject* parent);
virtual ~PDFDiffResultNavigator() override;
void setResult(const PDFDiffResult* diffResult);
/// Returns true, if valid result is selected
bool isSelected() const;
/// Returns true if action go to next result can be performed,
/// otherwise false is returned.
bool canGoNext() const;
/// Returns true if action go to previous result can be performed,
/// otherwise false is returned.
bool canGoPrevious() const;
/// Goes to next result. If action cannot be performed,
/// nothing happens and signal is not emitted.
void goNext();
/// Goes to previous result. If action cannot be performed,
/// nothing happens and signal is not emitted.
void goPrevious();
/// Updates selection, if difference result was changed
void update();
signals:
void selectionChanged(size_t currentIndex);
private:
size_t getLimit() const { return m_diffResult ? m_diffResult->getDifferencesCount() : 0; }
const PDFDiffResult* m_diffResult;
size_t m_currentIndex;
};
/// Diff engine for comparing two pdf documents.
@ -218,7 +288,8 @@ private:
PDFDiffResult perform();
void stepProgress();
void performSteps(const std::vector<PDFInteger>& leftPages,
const std::vector<PDFInteger>& rightPages);
const std::vector<PDFInteger>& rightPages,
PDFDiffResult& result);
void performPageMatching(const std::vector<PDFDiffPageContext>& leftPreparedPages,
const std::vector<PDFDiffPageContext>& rightPreparedPages,
PDFAlgorithmLongestCommonSubsequenceBase::Sequence& pageSequence,
@ -226,7 +297,8 @@ private:
void performCompare(const std::vector<PDFDiffPageContext>& leftPreparedPages,
const std::vector<PDFDiffPageContext>& rightPreparedPages,
PDFAlgorithmLongestCommonSubsequenceBase::Sequence& pageSequence,
const std::map<size_t, size_t>& pageMatches);
const std::map<size_t, size_t>& pageMatches,
PDFDiffResult& result);
void finalizeGraphicsPieces(PDFDiffPageContext& context);
void onComparationPerformed();