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Thumbnails - first part

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Jakub Melka
2019-12-07 17:59:03 +01:00
parent 99ba0a0c09
commit 1be4aea954
17 changed files with 792 additions and 9 deletions
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38
PdfForQtLib/sources/pdfitemmodels.h
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@ -22,6 +22,7 @@
#include "pdfobject.h"
#include <QIcon>
#include <QPixmapCache>
#include <QAbstractItemModel>
namespace pdf
@ -31,6 +32,7 @@ class PDFDocument;
class PDFOutlineItem;
class PDFFileSpecification;
class PDFOptionalContentActivity;
class PDFDrawWidgetProxy;
/// Represents tree item in the GUI tree
class PDFTreeItem
@ -217,6 +219,42 @@ public:
const PDFFileSpecification* getFileSpecification(const QModelIndex& index) const;
};
class PDFFORQTLIBSHARED_EXPORT PDFThumbnailsItemModel : public QAbstractItemModel
{
Q_OBJECT
public:
explicit inline PDFThumbnailsItemModel(const PDFDrawWidgetProxy* proxy, QObject* parent);
bool isEmpty() const;
virtual QModelIndex index(int row, int column, const QModelIndex& parent) const override;
virtual QModelIndex parent(const QModelIndex& child) const override;
virtual int rowCount(const QModelIndex& parent) const override;
virtual int columnCount(const QModelIndex& parent) const override;
virtual QVariant data(const QModelIndex& index, int role) const override;
void setThumbnailsSize(int size);
void setDocument(const PDFDocument* document);
/// Sets the extra item width/height for size hint. This space will be added to the size hint (pixmap size)
void setExtraItemSizeHint(int width, int height) { m_extraItemWidthHint = width; m_extraItemHeighHint = height; }
private:
void onPageImageChanged(bool all, const std::vector<PDFInteger>& pages);
/// Returns generated key for page index
QString getKey(int pageIndex) const;
const PDFDrawWidgetProxy* m_proxy;
int m_thumbnailSize;
int m_extraItemWidthHint;
int m_extraItemHeighHint;
int m_pageCount;
const PDFDocument* m_document;
QPixmapCache m_thumbnailCache;
};
} // namespace pdf
#endif // PDFITEMMODELS_H