Diffstat (limited to 'noncore/apps/opie-reader/CFilter.h') (more/less context) (show whitespace changes)
| -rw-r--r-- | noncore/apps/opie-reader/CFilter.h | 289 |
1 files changed, 218 insertions, 71 deletions
diff --git a/noncore/apps/opie-reader/CFilter.h b/noncore/apps/opie-reader/CFilter.h index 0a03b3e..cec9618 100644 --- a/noncore/apps/opie-reader/CFilter.h +++ b/noncore/apps/opie-reader/CFilter.h @@ -4,26 +4,60 @@ #include "CExpander.h" #include "CEncoding.h" -class CFilter : public CCharacterSource +class CFilter_IFace : public CCharacterSource +{ + public: + virtual linkType hyperlink(unsigned int n, unsigned int noff, QString& w, QString& nm) = 0; + virtual void setparent(CCharacterSource* p) = 0; + virtual ~CFilter_IFace() {}; + virtual void locate(unsigned int n) = 0; + virtual bool findanchor(const QString& nm) = 0; + virtual void saveposn(const QString& f, size_t posn) = 0; + virtual void writeposn(const QString& f, size_t posn) = 0; + virtual linkType forward(QString& f, size_t& loc) = 0; + virtual linkType back(QString& f, size_t& loc) = 0; + virtual bool hasnavigation() = 0; + virtual int getwidth() = 0; + virtual CCharacterSource* getparent() = 0; +}; + +class CFilter : public CFilter_IFace { - friend class CFilterChain; protected: CCharacterSource* parent; - linkType hyperlink(unsigned int n, QString& w) + public: + virtual linkType hyperlink(unsigned int n, unsigned int noff, QString& w, QString& nm) { - return parent->hyperlink(n,w); + return parent->hyperlink(n,noff,w,nm); } - public: CFilter() : parent(NULL) {} void setparent(CCharacterSource* p) { parent = p; } + CCharacterSource* getparent() { return parent; } virtual ~CFilter() {}; + virtual void locate(unsigned int n) + { + parent->locate(n); + } + virtual bool findanchor(const QString& nm) + { + return parent->findanchor(nm); + } + virtual void saveposn(const QString& f, size_t posn) { parent->saveposn(f, posn); } + virtual void writeposn(const QString& f, size_t posn) { parent->writeposn(f, posn); } + virtual linkType forward(QString& f, size_t& loc) { return parent->forward(f, loc); } + virtual linkType back(QString& f, size_t& loc) { return parent->back(f, loc); } + virtual bool hasnavigation() { return parent->hasnavigation(); } + virtual int getwidth() { return parent->getwidth(); } + QImage* getPicture(unsigned long tgt) { return parent->getPicture(tgt); } + QImage* getPicture(const QString& href) { return parent->getPicture(href); } + bool getFile(const QString& href) { return parent->getFile(href); } }; class CFilterChain { - CExpander* expander; + CExpander_Interface* expander; CEncoding* encoder; - CFilter* first; + CFilter_IFace* first; CCharacterSource* front; public: CFilterChain(CEncoding* _e) : encoder(_e), first(NULL), front(_e) {}; @@ -32,17 +66,25 @@ class CFilterChain CCharacterSource* p = front; while (p != encoder) { - CFilter* pnext = (CFilter*)p; - p = ((CFilter*)p)->parent; + CFilter_IFace* pnext = (CFilter_IFace*)p; + p = ((CFilter_IFace*)p)->getparent(); delete pnext; } delete encoder; } - void getch(tchar& ch, CStyle& sty) + linkType hyperlink(unsigned int n, unsigned int noff, QString& wrd, QString& nm) + { + return front->hyperlink(n, noff, wrd, nm); + } + void locate(unsigned int n) + { + front->locate(n); + } + void getch(tchar& ch, CStyle& sty, unsigned long& pos) { - front->getch(ch, sty); + front->getch(ch, sty, pos); } - void addfilter(CFilter* p) + void addfilter(CFilter_IFace* p) { if (first == NULL) { @@ -55,7 +97,7 @@ class CFilterChain front = p; } } - void setsource(CExpander* p) + void setsource(CExpander_Interface* p) { expander = p; encoder->setparent(p); @@ -67,6 +109,16 @@ class CFilterChain first->setparent(p); encoder->setparent(expander); } + bool findanchor(const QString& nm) + { + return front->findanchor(nm); + } + void saveposn(const QString& f, size_t posn) { front->saveposn(f, posn); } + void writeposn(const QString& f, size_t posn) { front->writeposn(f, posn); } + linkType forward(QString& f, size_t& loc) { return front->forward(f, loc); } + linkType back(QString& f, size_t& loc) { return front->back(f, loc); } + bool hasnavigation() { return front->hasnavigation(); } + QString about() { return QString("Filter chain (c) Tim Wentford\n")+front->about(); } }; class stripcr : public CFilter @@ -74,14 +126,15 @@ class stripcr : public CFilter public: stripcr() {} ~stripcr() {} - void getch(tchar& ch, CStyle& sty) + void getch(tchar& ch, CStyle& sty, unsigned long& pos) { do { - parent->getch(ch, sty); + parent->getch(ch, sty, pos); } while (ch == 13); } + QString about() { return QString("StripCR filter (c) Tim Wentford\n")+parent->about(); } }; class dehyphen : public CFilter @@ -92,7 +145,7 @@ class dehyphen : public CFilter public: dehyphen() : m_bCharWaiting(false) {} ~dehyphen() {} - void getch(tchar& ch, CStyle& sty) + void getch(tchar& ch, CStyle& sty, unsigned long& pos) { if (m_bCharWaiting) { @@ -101,30 +154,33 @@ class dehyphen : public CFilter sty = m_nextSty; return; } - parent->getch(ch, sty); + parent->getch(ch, sty, pos); if (ch != '-') return; - parent->getch(m_nextChar, m_nextSty); + parent->getch(m_nextChar, m_nextSty, pos); if (m_nextChar != 10) { m_bCharWaiting = true; ch = '-'; return; } - parent->getch(ch, sty); + parent->getch(ch, sty, pos); } + QString about() { return QString("Hyphenation filter (c) Tim Wentford\n")+parent->about(); } }; -class striphtml : public CFilter +template<class A, class B>class QMap; + +const int m_cmaxdepth = 8; + +class htmlmark { - CStyle currentstyle; - unsigned short skip_ws(); - unsigned short skip_ws_end(); - unsigned short parse_m(); - void mygetch(tchar& ch, CStyle& sty); + QString file; + size_t pos; public: - striphtml() {} - ~striphtml() {} - void getch(tchar& ch, CStyle& sty); + htmlmark() : file(), pos(0) {} + htmlmark(const QString& _f, size_t _p) : file(_f), pos(_p) {} + QString filename() { return file; } + size_t posn() { return pos; } }; class unindent : public CFilter @@ -133,47 +189,33 @@ class unindent : public CFilter public: unindent() : lc(0) {} ~unindent() {} - void getch(tchar& ch, CStyle& sty) + void getch(tchar& ch, CStyle& sty, unsigned long& pos) { if (lc == 10) { do { - parent->getch(ch, sty); + parent->getch(ch, sty, pos); } while (ch == ' '); } - else parent->getch(ch, sty); + else parent->getch(ch, sty, pos); lc = ch; return; } + QString about() { return QString("Unindent filter (c) Tim Wentford\n")+parent->about(); } }; +class CRegExpFilt; class repara : public CFilter { tchar tch; + CRegExpFilt* flt; public: - repara() : tch(0) {} - ~repara() {} - void getch(tchar& ch, CStyle& sty) - { - parent->getch(ch, sty); - if (ch == 10) - { - if (tch == 10) - { - return; - } - else - { - tch = ch; - ch = ' '; - return; - } - } - tch = ch; - return; - } + repara(const QString&); + ~repara(); + void getch(tchar& ch, CStyle& sty, unsigned long& pos); + QString about() { return QString("Reparagraph filter (c) Tim Wentford\n")+parent->about(); } }; class indenter : public CFilter @@ -184,7 +226,7 @@ class indenter : public CFilter public: indenter(int _a=5) : amnt(_a), indent(0) {} ~indenter() {} - void getch(tchar& ch, CStyle& sty) + void getch(tchar& ch, CStyle& sty, unsigned long& pos) { if (indent > 0) { @@ -193,7 +235,7 @@ class indenter : public CFilter sty = lsty; return; } - parent->getch(ch, sty); + parent->getch(ch, sty, pos); if (ch == 10) { indent = amnt; @@ -201,6 +243,7 @@ class indenter : public CFilter } return; } + QString about() { return QString("Indentation filter (c) Tim Wentford\n")+parent->about(); } }; class dblspce : public CFilter @@ -210,7 +253,7 @@ class dblspce : public CFilter public: dblspce() : lastlf(false) {} ~dblspce() {} - void getch(tchar& ch, CStyle& sty) + void getch(tchar& ch, CStyle& sty, unsigned long& pos) { if (lastlf) { @@ -219,13 +262,14 @@ class dblspce : public CFilter sty = lsty; return; } - parent->getch(ch, sty); + parent->getch(ch, sty, pos); if (lastlf = (ch == 10)) { lsty = sty; } return; } + QString about() { return QString("Double space (c) Tim Wentford\n")+parent->about(); } }; class textfmt : public CFilter @@ -233,11 +277,12 @@ class textfmt : public CFilter CStyle currentstyle; tchar lastchar; bool uselast; - void mygetch(tchar&, CStyle&); + void mygetch(tchar&, CStyle&, unsigned long& pos); public: textfmt() : lastchar(0), uselast(false) {} ~textfmt() {} - void getch(tchar& ch, CStyle& sty); + void getch(tchar& ch, CStyle& sty, unsigned long& pos); + QString about() { return QString("Text formatting filter (c) Tim Wentford\n")+parent->about(); } }; class embolden : public CFilter @@ -245,11 +290,12 @@ class embolden : public CFilter public: embolden() {} ~embolden() {} - void getch(tchar& ch, CStyle& sty) + void getch(tchar& ch, CStyle& sty, unsigned long& pos) { - parent->getch(ch, sty); + parent->getch(ch, sty, pos); sty.setBold(); } + QString about() { return QString("Emboldening filter (c) Tim Wentford\n")+parent->about(); } }; class remap : public CFilter @@ -260,7 +306,8 @@ class remap : public CFilter public: remap() : offset(0) { q[0] = 0; } ~remap() {} - void getch(tchar& ch, CStyle& sty); + void getch(tchar& ch, CStyle& sty, unsigned long& pos); + QString about() { return QString("Character remapping filter (c) Tim Wentford\n")+parent->about(); } }; class PeanutFormatter : public CFilter @@ -268,7 +315,8 @@ class PeanutFormatter : public CFilter CStyle currentstyle; public: ~PeanutFormatter() {} - void getch(tchar& ch, CStyle& sty); + void getch(tchar& ch, CStyle& sty, unsigned long& pos); + QString about() { return QString("PML filter (c) Tim Wentford\n")+parent->about(); } }; class OnePara : public CFilter @@ -277,7 +325,8 @@ class OnePara : public CFilter public: OnePara() : m_lastchar(0) {} ~OnePara() {} - void getch(tchar& ch, CStyle& sty); + void getch(tchar& ch, CStyle& sty, unsigned long& pos); + QString about() { return QString("Single space filter (c) Tim Wentford\n")+parent->about(); } }; class DePluck : public CFilter @@ -291,26 +340,27 @@ class DePluck : public CFilter public: DePluck(tchar* t) : nextpart(t), m_buffer(0), m_buffed(0), m_current(0), m_debuff(false) {} ~DePluck() {} - void getch(tchar& ch, CStyle& sty); + void getch(tchar& ch, CStyle& sty, unsigned long& pos); + QString about() { return QString("Depluck filter (c) Tim Wentford\n")+parent->about(); } }; -#ifdef REPALM class repalm : public CFilter { public: ~repalm() {} - void getch(tchar& ch, CStyle& sty); + void getch(tchar& ch, CStyle& sty, unsigned long& pos); + QString about() { return QString("Repalm filter (c) Tim Wentford\n")+parent->about(); } }; -#endif class FullJust : public CFilter { public: - void getch(tchar& ch, CStyle& sty) + void getch(tchar& ch, CStyle& sty, unsigned long& pos) { - parent->getch(ch, sty); + parent->getch(ch, sty, pos); if (sty.getJustify() == m_AlignLeft) sty.setFullJustify(); } + QString about() { return QString("Full justification filter (c) Tim Wentford\n")+parent->about(); } }; /* class AddSpace : public CFilter @@ -318,11 +368,108 @@ class AddSpace : public CFilter unsigned char m_espc; public: AddSpace(unsigned char s) : m_espc(s) {} - void getch(tchar& ch, CStyle& sty) + void getch(tchar& ch, CStyle& sty, unsigned long& pos) { - parent->getch(ch, sty); + parent->getch(ch, sty, pos); sty.setExtraSpace(m_espc); } }; */ + +class QTReader; + +class HighlightFilter : public CFilter +{ + QTReader* pReader; + unsigned long lastpos, nextpos; + unsigned char red, green, blue; + CList<Bkmk>* bkmks; + public: + HighlightFilter(QTReader*); + void getch(tchar& ch, CStyle& sty, unsigned long& pos); + void refresh(unsigned long); + QString about() { return QString("High-lighting filter (c) Tim Wentford\n")+parent->about(); } +}; + +#include "static.h" +#ifndef __STATIC +#include <dlfcn.h> + +class ExternFilter : public CFilter_IFace +{ + CFilter* filt; + void *handle; + public: + linkType hyperlink(unsigned int n, unsigned int noff, QString& w, QString& nm) + { + return filt->hyperlink(n, noff, w, nm); + } + void setparent(CCharacterSource* p) { filt->setparent(p); } + ExternFilter(const QString& nm, const QString& optional); + ~ExternFilter() + { + if (filt != NULL) delete filt; + if (handle != NULL) dlclose(handle); + } + void locate(unsigned int n) { filt->locate(n); } + bool findanchor(const QString& nm) { return filt->findanchor(nm); } + void saveposn(const QString& f, size_t posn) { filt->saveposn(f, posn); } + void writeposn(const QString& f, size_t posn) { filt->writeposn(f, posn); } + linkType forward(QString& f, size_t& loc) { return filt->forward(f, loc); } + linkType back(QString& f, size_t& loc) { return filt->back(f, loc); } + bool hasnavigation() { return filt->hasnavigation(); } + int getwidth() { return filt->getwidth(); } + CCharacterSource* getparent() { return filt->getparent(); } + void getch(tchar& c, CStyle& s, unsigned long& l) { filt->getch(c, s, l); } + QImage* getPicture(unsigned long tgt) { return filt->getPicture(tgt); } + CFilter* filter() { return filt; } + QImage* getPicture(const QString& href) { return filt->getPicture(href); } + bool getFile(const QString& href) { return filt->getFile(href); } + QString about() { return QString("Filter plug-in (c) Tim Wentford\n")+filt->about(); } +}; +#endif + +class kern : public CFilter +{ + tchar lastchar; + bool uselast; + CStyle laststy; + public: + kern() : lastchar(0), uselast(false) {} + ~kern() {} + void getch(tchar& ch, CStyle& sty, unsigned long& pos); + QString about() { return QString("Kerning filter (c) Tim Wentford\n")+parent->about(); } +}; + +class makeInverse : public CFilter +{ + public: + void getch(tchar& ch, CStyle& sty, unsigned long& pos); + QString about() { return QString("Colourmap inversion filter (c) Tim Wentford\n")+parent->about(); } +}; +/* +class makeNegative : public CFilter +{ + public: + void getch(tchar& ch, CStyle& sty, unsigned long& pos); +}; +*/ +class setbg : public CFilter +{ + int m_r, m_g, m_b; + public: + setbg(int _r, int _g, int _b) : m_r(_r), m_g(_g), m_b(_b) {} + void getch(tchar& ch, CStyle& sty, unsigned long& pos); + QString about() { return QString("Background colour filter (c) Tim Wentford\n")+parent->about(); } +}; + +class setfg : public CFilter +{ + int m_r, m_g, m_b; + public: + setfg(int _r, int _g, int _b) : m_r(_r), m_g(_g), m_b(_b) {} + void getch(tchar& ch, CStyle& sty, unsigned long& pos); + QString about() { return QString("Foreground colour filter (c) Tim Wentford\n")+parent->about(); } +}; + #endif |