| //======================================================================== |
| // |
| // ArthurOutputDev.h |
| // |
| // Copyright 2003 Glyph & Cog, LLC |
| // |
| //======================================================================== |
| |
| //======================================================================== |
| // |
| // Modified under the Poppler project - http://poppler.freedesktop.org |
| // |
| // All changes made under the Poppler project to this file are licensed |
| // under GPL version 2 or later |
| // |
| // Copyright (C) 2005 Brad Hards <bradh@frogmouth.net> |
| // Copyright (C) 2005 Albert Astals Cid <aacid@kde.org> |
| // Copyright (C) 2009, 2011 Carlos Garcia Campos <carlosgc@gnome.org> |
| // Copyright (C) 2010 Pino Toscano <pino@kde.org> |
| // Copyright (C) 2011 Andreas Hartmetz <ahartmetz@gmail.com> |
| // Copyright (C) 2013 Thomas Freitag <Thomas.Freitag@alfa.de> |
| // Copyright (C) 2013 Mihai Niculescu <q.quark@gmail.com> |
| // Copyright (C) 2017 Oliver Sander <oliver.sander@tu-dresden.de> |
| // |
| // To see a description of the changes please see the Changelog file that |
| // came with your tarball or type make ChangeLog if you are building from git |
| // |
| //======================================================================== |
| |
| #ifndef ARTHUROUTPUTDEV_H |
| #define ARTHUROUTPUTDEV_H |
| |
| #ifdef USE_GCC_PRAGMAS |
| #pragma interface |
| #endif |
| |
| #include <memory> |
| #include <map> |
| #include <stack> |
| |
| #include "goo/gtypes.h" |
| #include "OutputDev.h" |
| #include "GfxState.h" |
| |
| #include <QtGui/QPainter> |
| |
| class GfxState; |
| |
| class SplashFontEngine; |
| |
| class QRawFont; |
| |
| //------------------------------------------------------------------------ |
| // ArthurOutputDev - Qt 5 QPainter renderer |
| //------------------------------------------------------------------------ |
| |
| class ArthurOutputDev: public OutputDev { |
| public: |
| /** |
| * Describes how fonts are distorted (aka hinted) to fit the pixel grid. |
| * More hinting means sharper edges and less adherence to the true letter shapes. |
| */ |
| enum FontHinting { |
| NoHinting = 0, ///< Font shapes are left unchanged |
| SlightHinting, ///< Font shapes are distorted vertically only |
| FullHinting ///< Font shapes are distorted horizontally and vertically |
| }; |
| |
| // Constructor. |
| ArthurOutputDev(QPainter *painter ); |
| |
| // Destructor. |
| ~ArthurOutputDev(); |
| |
| void setFontHinting(FontHinting hinting) { m_fontHinting = hinting; } |
| |
| //----- get info about output device |
| |
| // Does this device use upside-down coordinates? |
| // (Upside-down means (0,0) is the top left corner of the page.) |
| GBool upsideDown() override { return gTrue; } |
| |
| // Does this device use drawChar() or drawString()? |
| GBool useDrawChar() override { return gTrue; } |
| |
| // Does this device use beginType3Char/endType3Char? Otherwise, |
| // text in Type 3 fonts will be drawn with drawChar/drawString. |
| GBool interpretType3Chars() override { return gTrue; } |
| |
| //----- initialization and control |
| |
| // Set Current Transformation Matrix to a fixed matrix given in ctm[0],...,ctm[5] |
| void setDefaultCTM(double *ctm) override; |
| |
| // Start a page. |
| void startPage(int pageNum, GfxState *state, XRef *xref) override; |
| |
| // End a page. |
| void endPage() override; |
| |
| //----- save/restore graphics state |
| void saveState(GfxState *state) override; |
| void restoreState(GfxState *state) override; |
| |
| //----- update graphics state |
| void updateAll(GfxState *state) override; |
| void updateCTM(GfxState *state, double m11, double m12, |
| double m21, double m22, double m31, double m32) override; |
| void updateLineDash(GfxState *state) override; |
| void updateFlatness(GfxState *state) override; |
| void updateLineJoin(GfxState *state) override; |
| void updateLineCap(GfxState *state) override; |
| void updateMiterLimit(GfxState *state) override; |
| void updateLineWidth(GfxState *state) override; |
| void updateFillColor(GfxState *state) override; |
| void updateStrokeColor(GfxState *state) override; |
| void updateFillOpacity(GfxState *state) override; |
| void updateStrokeOpacity(GfxState *state) override; |
| |
| //----- update text state |
| void updateFont(GfxState *state) override; |
| |
| //----- path painting |
| void stroke(GfxState *state) override; |
| void fill(GfxState *state) override; |
| void eoFill(GfxState *state) override; |
| |
| //----- path clipping |
| void clip(GfxState *state) override; |
| void eoClip(GfxState *state) override; |
| |
| //----- text drawing |
| // virtual void drawString(GfxState *state, GooString *s); |
| void drawChar(GfxState *state, double x, double y, |
| double dx, double dy, |
| double originX, double originY, |
| CharCode code, int nBytes, Unicode *u, int uLen) override; |
| GBool beginType3Char(GfxState *state, double x, double y, |
| double dx, double dy, |
| CharCode code, Unicode *u, int uLen) override; |
| void endType3Char(GfxState *state) override; |
| void endTextObject(GfxState *state) override; |
| |
| //----- image drawing |
| void drawImageMask(GfxState *state, Object *ref, Stream *str, |
| int width, int height, GBool invert, |
| GBool interpolate, GBool inlineImg) override; |
| void drawImage(GfxState *state, Object *ref, Stream *str, |
| int width, int height, GfxImageColorMap *colorMap, |
| GBool interpolate, int *maskColors, GBool inlineImg) override; |
| |
| void drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str, |
| int width, int height, |
| GfxImageColorMap *colorMap, |
| GBool interpolate, |
| Stream *maskStr, |
| int maskWidth, int maskHeight, |
| GfxImageColorMap *maskColorMap, |
| GBool maskInterpolate) override; |
| |
| //----- Type 3 font operators |
| void type3D0(GfxState *state, double wx, double wy) override; |
| void type3D1(GfxState *state, double wx, double wy, |
| double llx, double lly, double urx, double ury) override; |
| |
| //----- special access |
| |
| // Called to indicate that a new PDF document has been loaded. |
| void startDoc(XRef *xrefA); |
| |
| GBool isReverseVideo() { return gFalse; } |
| |
| private: |
| QPainter *m_painter; |
| FontHinting m_fontHinting; |
| |
| QPen m_currentPen; |
| // The various stacks are used to implement the 'saveState' and 'restoreState' methods |
| std::stack<QPen> m_currentPenStack; |
| |
| QBrush m_currentBrush; |
| std::stack<QBrush> m_currentBrushStack; |
| |
| GBool m_needFontUpdate; // set when the font needs to be updated |
| SplashFontEngine *m_fontEngine; |
| XRef *xref; // xref table for current document |
| |
| // The current font in use |
| QRawFont* m_rawFont; |
| std::stack<QRawFont*> m_rawFontStack; |
| |
| // Identify a font by its 'Ref' and its font size |
| struct ArthurFontID |
| { |
| Ref ref; |
| double fontSize; |
| |
| bool operator<(const ArthurFontID& other) const |
| { |
| return (ref.num < other.ref.num) |
| || ((ref.num == other.ref.num) && (fontSize < other.fontSize)); |
| } |
| }; |
| |
| // Cache all fonts |
| std::map<ArthurFontID,std::unique_ptr<QRawFont> > m_rawFontCache; |
| |
| // The table that maps character codes to glyph indexes |
| int* m_codeToGID; |
| std::stack<int*> m_codeToGIDStack; |
| }; |
| |
| #endif |