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Jakub Melka
2019-12-21 18:10:54 +01:00
parent f2f398e82b
commit f48709c8c5
6 changed files with 460 additions and 8 deletions
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21
PdfForQtLib/sources/pdffont.h
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@ -25,6 +25,7 @@
#include <QFont>
#include <QMatrix>
#include <QSharedPointer>
#include <QTreeWidgetItem>
#include <unordered_map>
@ -166,7 +167,7 @@ static constexpr PDFEncoding::Encoding getEncodingForStandardFont(StandardFontTy
}
}
struct FontDescriptor
struct PDFFORQTLIBSHARED_EXPORT FontDescriptor
{
bool isEmbedded() const { return !fontFile.isEmpty() || !fontFile2.isEmpty() || !fontFile3.isEmpty(); }
@ -216,7 +217,7 @@ using PDFRealizedFontPointer = QSharedPointer<PDFRealizedFont>;
/// Font, which has fixed pixel size. It is programmed as PIMPL, because we need
/// to remove FreeType types from the interface (so we do not include FreeType in the interface).
class PDFRealizedFont
class PDFFORQTLIBSHARED_EXPORT PDFRealizedFont
{
public:
~PDFRealizedFont();
@ -231,6 +232,9 @@ public:
/// Return true, if we have horizontal writing system
bool isHorizontalWritingSystem() const;
/// Adds information about the font into tree item
void dumpFontToTreeItem(QTreeWidgetItem* item) const;
/// Creates new realized font from the standard font. If font can't be created,
/// then exception is thrown.
static PDFRealizedFontPointer createRealizedFont(PDFFontPointer font, PDFReal pixelSize, PDFRenderErrorReporter* reporter);
@ -243,7 +247,7 @@ private:
};
/// Base class representing font in the PDF file
class PDFFont
class PDFFORQTLIBSHARED_EXPORT PDFFont
{
public:
explicit PDFFont(FontDescriptor fontDescriptor);
@ -255,6 +259,9 @@ public:
/// Returns font descriptor
const FontDescriptor* getFontDescriptor() const { return &m_fontDescriptor; }
/// Adds information about the font into tree item
virtual void dumpFontToTreeItem(QTreeWidgetItem* item) const { Q_UNUSED(item); }
/// Creates font from the object. If font can't be created, exception is thrown.
/// \param object Font dictionary
/// \param document Document
@ -274,6 +281,8 @@ private:
/// which maps single-byte character to the glyph in the font.
class PDFSimpleFont : public PDFFont
{
using BaseClass = PDFFont;
public:
explicit PDFSimpleFont(FontDescriptor fontDescriptor,
QByteArray name,
@ -292,6 +301,8 @@ public:
/// Returns the glyph advance (or zero, if glyph advance is invalid)
PDFInteger getGlyphAdvance(size_t index) const;
virtual void dumpFontToTreeItem(QTreeWidgetItem* item) const override;
protected:
QByteArray m_name;
QByteArray m_baseFont;
@ -305,6 +316,8 @@ protected:
class PDFType1Font : public PDFSimpleFont
{
using BaseClass = PDFSimpleFont;
public:
explicit PDFType1Font(FontDescriptor fontDescriptor,
QByteArray name,
@ -319,6 +332,7 @@ public:
virtual ~PDFType1Font() override = default;
virtual FontType getFontType() const override;
virtual void dumpFontToTreeItem(QTreeWidgetItem*item) const override;
/// Returns the assigned standard font (or invalid, if font is not standard)
StandardFontType getStandardFontType() const { return m_standardFontType; }
@ -347,6 +361,7 @@ public:
const PDFObject& resources);
virtual FontType getFontType() const override;
virtual void dumpFontToTreeItem(QTreeWidgetItem*item) const override;
/// Returns width of the character. If character doesn't exist, then zero is returned.
double getWidth(int characterIndex) const;