Diffstat (limited to 'noncore/unsupported/qpdf/QOutputDev.h') (more/less context) (ignore whitespace changes)
-rw-r--r-- | noncore/unsupported/qpdf/QOutputDev.h | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/noncore/unsupported/qpdf/QOutputDev.h b/noncore/unsupported/qpdf/QOutputDev.h new file mode 100644 index 0000000..2958062 --- a/dev/null +++ b/noncore/unsupported/qpdf/QOutputDev.h @@ -0,0 +1,173 @@ + +//======================================================================== +// +// XOutputDev.h +// +// Copyright 1996 Derek B. Noonburg +// +//======================================================================== + +#ifndef QOUTPUTDEV_H +#define QOUTPUTDEV_H + +#ifdef __GNUC__ +#pragma interface +#endif + +#include "aconf.h" +#include <stddef.h> + +#include <qscrollview.h> + +class Object; + +#include "config.h" +#include "CharTypes.h" +#include "GlobalParams.h" +#include "OutputDev.h" + +class GString; +class GList; +struct GfxRGB; +class GfxFont; +class GfxSubpath; +class TextPage; +class XOutputFontCache; +class Link; +class Catalog; +class DisplayFontParam; +class UnicodeMap; +class CharCodeToUnicode; + + +class QPainter; +class QPixmap; +class QPointArray; + + +typedef fouble fp_t; + +//------------------------------------------------------------------------ +// Constants +//------------------------------------------------------------------------ + + +//------------------------------------------------------------------------ +// Misc types +//------------------------------------------------------------------------ + + +//------------------------------------------------------------------------ +// XOutputDev +//------------------------------------------------------------------------ + +class QOutputDev : public QScrollView, public OutputDev { +public: + + // Constructor. + QOutputDev( QWidget *parent = 0, const char *name = 0, int flags = 0 ); + + // Destructor. + virtual ~QOutputDev(); + + //---- 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.) + virtual GBool upsideDown() { return gTrue; } + + // Does this device use drawChar() or drawString()? + virtual GBool useDrawChar() { return gTrue; } + + //----- initialization and control + + // Start a page. + virtual void startPage(int pageNum, GfxState *state); + + // End a page. + virtual void endPage(); + + //----- link borders + virtual void drawLink(Link *link, Catalog *catalog); + + //----- save/restore graphics state + virtual void saveState(GfxState *state); + virtual void restoreState(GfxState *state); + + //----- update graphics state + virtual void updateAll(GfxState *state); + virtual void updateCTM(GfxState *state, fp_t m11, fp_t m12, + fp_t m21, fp_t m22, fp_t m31, fp_t m32); + virtual void updateLineDash(GfxState *state); + virtual void updateFlatness(GfxState *state); + virtual void updateLineJoin(GfxState *state); + virtual void updateLineCap(GfxState *state); + virtual void updateMiterLimit(GfxState *state); + virtual void updateLineWidth(GfxState *state); + virtual void updateFillColor(GfxState *state); + virtual void updateStrokeColor(GfxState *state); + + //----- update text state + virtual void updateFont(GfxState *state); + + //----- path painting + virtual void stroke(GfxState *state); + virtual void fill(GfxState *state); + virtual void eoFill(GfxState *state); + + //----- path clipping + virtual void clip(GfxState *state); + virtual void eoClip(GfxState *state); + + //----- text drawing + virtual void beginString(GfxState *state, GString *s); + virtual void endString(GfxState *state); + virtual void drawChar(GfxState *state, fp_t x, fp_t y, + fp_t dx, fp_t dy, + fp_t originX, fp_t originY, + CharCode code, Unicode *u, int uLen); + + //----- image drawing + virtual void drawImageMask(GfxState *state, Object *ref, Stream *str, + int width, int height, GBool invert, + GBool inlineImg); + virtual void drawImage(GfxState *state, Object *ref, Stream *str, + int width, int height, GfxImageColorMap *colorMap, + int *maskColors, GBool inlineImg); + + // Find a string. If <top> is true, starts looking at <l>,<t>; + // otherwise starts looking at top of page. If <bottom> is true, + // stops looking at <l+w-1>,<t+h-1>; otherwise stops looking at bottom + // of page. If found, sets the text bounding rectange and returns + // true; otherwise returns false. + GBool findText ( Unicode *s, int len, GBool top, GBool bottom, int *xMin, int *yMin, int *xMax, int *yMax ); + + //----- special QT access + + bool findText ( const QString &str, int &l, int &t, int &w, int &h, bool top = 0, bool bottom = 0 ); + bool findText ( const QString &str, QRect &r, bool top = 0, bool bottom = 0 ); + + // Get the text which is inside the specified rectangle. + QString getText ( int left, int top, int width, int height ); + QString getText ( const QRect &r ); + +protected: + virtual void drawContents ( QPainter *p, int, int, int, int ); + +private: + QPixmap *m_pixmap; // pixmap to draw into + QPainter *m_painter; + + TextPage *m_text; // text from the current page + +private: + QFont matchFont ( GfxFont *, fp_t m11, fp_t m12, fp_t m21, fp_t m22 ); + + void updateLineAttrs ( GfxState *state, GBool updateDash ); + void doFill ( GfxState *state, bool winding ); + void doClip ( GfxState *state, bool winding ); + int convertPath ( GfxState *state, QPointArray &points, QArray<int> &lengths ); + int convertSubpath ( GfxState *state, GfxSubpath *subpath, QPointArray &points ); +}; + +#endif |