| //======================================================================== |
| // |
| // MarkedContentOutputDev.h |
| // |
| // This file is licensed under the GPLv2 or later |
| // |
| // Copyright 2013 Igalia S.L. |
| // |
| //======================================================================== |
| |
| #ifndef MARKEDCONTENTOUTPUTDEV_H |
| #define MARKEDCONTENTOUTPUTDEV_H |
| |
| #include "goo/gtypes.h" |
| #include "goo/gmem.h" |
| #include "OutputDev.h" |
| #include "GfxState.h" |
| #include "GfxFont.h" |
| #include <vector> |
| |
| class Dict; |
| class UnicodeMap; |
| |
| |
| class TextSpan { |
| public: |
| TextSpan(const TextSpan& other): data(other.data) { |
| data->refcount++; |
| } |
| |
| TextSpan& operator=(const TextSpan& other) { |
| if (this != &other) { |
| data = other.data; |
| data->refcount++; |
| } |
| return *this; |
| } |
| |
| ~TextSpan() { |
| if (data && --data->refcount == 0) |
| delete data; |
| } |
| |
| GfxFont* getFont() const { return data->font; } |
| GooString* getText() const { return data->text; } |
| GfxRGB& getColor() const { return data->color; } |
| |
| private: |
| // Note: Takes ownership of strings, increases refcount for font. |
| TextSpan(GooString *text, |
| GfxFont *font, |
| const GfxRGB& color) |
| : data(new Data) { |
| data->text = text; |
| data->font = font; |
| data->color = color; |
| if (data->font) |
| data->font->incRefCnt(); |
| } |
| |
| struct Data { |
| GfxFont *font; |
| GooString *text; |
| GfxRGB color; |
| unsigned refcount; |
| |
| Data(): refcount(1) {} |
| |
| ~Data() { |
| assert(refcount == 0); |
| if (font) |
| font->decRefCnt(); |
| delete text; |
| } |
| }; |
| |
| Data *data; |
| |
| friend class MarkedContentOutputDev; |
| }; |
| |
| |
| typedef std::vector<TextSpan> TextSpanArray; |
| |
| |
| class MarkedContentOutputDev: public OutputDev { |
| public: |
| MarkedContentOutputDev(int mcidA); |
| virtual ~MarkedContentOutputDev(); |
| |
| virtual GBool isOk() { return gTrue; } |
| virtual GBool upsideDown() { return gTrue; } |
| virtual GBool useDrawChar() { return gTrue; } |
| virtual GBool interpretType3Chars() { return gFalse; } |
| virtual GBool needNonText() { return gFalse; } |
| virtual GBool needCharCount() { return gFalse; } |
| |
| virtual void startPage(int pageNum, GfxState *state, XRef *xref); |
| virtual void endPage(); |
| |
| virtual void drawChar(GfxState *state, |
| double xx, double yy, |
| double dx, double dy, |
| double ox, double oy, |
| CharCode c, int nBytes, |
| Unicode *u, int uLen); |
| |
| virtual void beginMarkedContent(char *name, Dict *properties); |
| virtual void endMarkedContent(GfxState *state); |
| |
| const TextSpanArray& getTextSpans() const; |
| |
| private: |
| |
| void endSpan(); |
| bool inMarkedContent() const { return mcidStack.size() > 0; } |
| bool needFontChange(GfxFont* font) const; |
| |
| GfxFont *currentFont; |
| GooString *currentText; |
| GfxRGB currentColor; |
| TextSpanArray textSpans; |
| int mcid; |
| std::vector<int> mcidStack; |
| double pageWidth; |
| double pageHeight; |
| UnicodeMap *unicodeMap; |
| }; |
| |
| #endif /* !MARKEDCONTENTOUTPUTDEV_H */ |