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Diffstat (limited to 'xpdf-qt/QtPDFCore.h')
| -rw-r--r-- | xpdf-qt/QtPDFCore.h | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/xpdf-qt/QtPDFCore.h b/xpdf-qt/QtPDFCore.h new file mode 100644 index 0000000..cbd1e3b --- /dev/null +++ b/xpdf-qt/QtPDFCore.h @@ -0,0 +1,227 @@ +//======================================================================== +// +// QtPDFCore.h +// +// Copyright 2009-2014 Glyph & Cog, LLC +// +//======================================================================== + +#ifndef QTPDFCORE_H +#define QTPDFCORE_H + +#include <aconf.h> + +#ifdef USE_GCC_PRAGMAS +#pragma interface +#endif + +#include <QDateTime> +#include "gtypes.h" +#include "SplashTypes.h" +#include "PDFCore.h" + +class GString; +class BaseStream; +class PDFDoc; +class LinkAction; + +class QWidget; +class QScrollBar; + +//------------------------------------------------------------------------ +// callbacks +//------------------------------------------------------------------------ + +typedef void (*QtPDFUpdateCbk)(void *data, GString *fileName, + int pageNum, int numPages, + const char *linkLabel); + +typedef void (*QtPDFMidPageChangedCbk)(void *data, int pageNum); + +typedef void (*QtPDFLoadCbk)(void *data); + +typedef void (*QtPDFActionCbk)(void *data, char *action); + +typedef void (*QtPDFLinkCbk)(void *data, const char *type, + const char *dest, int page); + +typedef void (*QtPDFSelectDoneCbk)(void *data); + +typedef void (*QtPDFPaintDoneCbk)(void *data, bool finished); + + +//------------------------------------------------------------------------ +// QtPDFCore +//------------------------------------------------------------------------ + +class QtPDFCore: public PDFCore { +public: + + // Create viewer core in <viewportA>. + QtPDFCore(QWidget *viewportA, + QScrollBar *hScrollBarA, QScrollBar *vScrollBarA, + SplashColorPtr paperColor, SplashColorPtr matteColor, + GBool reverseVideo); + + ~QtPDFCore(); + + //----- loadFile / displayPage / displayDest + + // Load a new file. Returns pdfOk or error code. + virtual int loadFile(GString *fileName, GString *ownerPassword = NULL, + GString *userPassword = NULL); + +#ifdef _WIN32 + // Load a new file. Returns pdfOk or error code. + virtual int loadFile(wchar_t *fileName, int fileNameLen, + GString *ownerPassword = NULL, + GString *userPassword = NULL); +#endif + + // Load a new file, via a Stream instead of a file name. Returns + // pdfOk or error code. + virtual int loadFile(BaseStream *stream, GString *ownerPassword = NULL, + GString *userPassword = NULL); + + // Load an already-created PDFDoc object. + virtual void loadDoc(PDFDoc *docA); + + // Reload the current file. This only works if the PDF was loaded + // via a file. Returns pdfOk or error code. + virtual int reload(); + + // Called after any update is complete. + virtual void finishUpdate(GBool addToHist, GBool checkForChangedFile); + + //----- panning and selection + + void startPan(int wx, int wy); + void endPan(int wx, int wy); + void startSelection(int wx, int wy, GBool extend); + void endSelection(int wx, int wy); + void mouseMove(int wx, int wy); + void selectWord(int wx, int wy); + void selectLine(int wx, int wy); + QString getSelectedTextQString(); + void copySelection(GBool toClipboard); + + //----- hyperlinks + + GBool doAction(LinkAction *action); + LinkAction *getLinkAction() { return linkAction; } + QString getLinkInfo(LinkAction *action); + GString *mungeURL(GString *url); + + //----- find + + virtual GBool find(char *s, GBool caseSensitive, GBool next, + GBool backward, GBool wholeWord, GBool onePageOnly); + virtual GBool findU(Unicode *u, int len, GBool caseSensitive, + GBool next, GBool backward, + GBool wholeWord, GBool onePageOnly); + + //----- password dialog + + virtual GString *getPassword(); + + //----- misc access + + virtual void setBusyCursor(GBool busy); + void doSetCursor(const QCursor &cursor); + void doUnsetCursor(); + void takeFocus(); + QSize getBestSize(); + int getDisplayDpi() { return displayDpi; } + double getScaleFactor() { return scaleFactor; } + void enableHyperlinks(GBool on) { hyperlinksEnabled = on; } + GBool getHyperlinksEnabled() { return hyperlinksEnabled; } + void enableExternalHyperlinks(GBool on) { externalHyperlinksEnabled = on; } + GBool getExternalHyperlinksEnabled() { return externalHyperlinksEnabled; } + void enableSelect(GBool on) { selectEnabled = on; } + void enablePan(GBool on) { panEnabled = on; } + void setShowPasswordDialog(GBool show) { showPasswordDialog = show; } + void setUpdateCbk(QtPDFUpdateCbk cbk, void *data) + { updateCbk = cbk; updateCbkData = data; } + void setMidPageChangedCbk(QtPDFMidPageChangedCbk cbk, void *data) + { midPageChangedCbk = cbk; midPageChangedCbkData = data; } + void setPreLoadCbk(QtPDFLoadCbk cbk, void *data) + { preLoadCbk = cbk; preLoadCbkData = data; } + void setPostLoadCbk(QtPDFLoadCbk cbk, void *data) + { postLoadCbk = cbk; postLoadCbkData = data; } + void setActionCbk(QtPDFActionCbk cbk, void *data) + { actionCbk = cbk; actionCbkData = data; } + void setLinkCbk(QtPDFLinkCbk cbk, void *data) + { linkCbk = cbk; linkCbkData = data; } + void setSelectDoneCbk(QtPDFSelectDoneCbk cbk, void *data) + { selectDoneCbk = cbk; selectDoneCbkData = data; } + void setPaintDoneCbk(QtPDFPaintDoneCbk cbk, void *data) + { paintDoneCbk = cbk; paintDoneCbkData = data; } + + //----- GUI events + void resizeEvent(); + void paintEvent(int x, int y, int w, int h); + void scrollEvent(); + virtual void tick(); + +private: + + //----- hyperlinks + void doLinkCbk(LinkAction *action); + void runCommand(GString *cmdFmt, GString *arg); + + //----- PDFCore callbacks + virtual void invalidate(int x, int y, int w, int h); + virtual void updateScrollbars(); + virtual GBool checkForNewFile(); + virtual void preLoad(); + virtual void postLoad(); + + QWidget *viewport; + QScrollBar *hScrollBar; + QScrollBar *vScrollBar; + + int displayDpi; + double scaleFactor; + + GBool dragging; + + GBool panning; + int panMX, panMY; + + GBool inUpdateScrollbars; + + int oldFirstPage; + int oldMidPage; + + LinkAction *linkAction; // mouse cursor is over this link + + LinkAction *lastLinkAction; // getLinkInfo() caches an action + QString lastLinkActionInfo; + + QDateTime modTime; // last modification time of PDF file + + QtPDFUpdateCbk updateCbk; + void *updateCbkData; + QtPDFMidPageChangedCbk midPageChangedCbk; + void *midPageChangedCbkData; + QtPDFLoadCbk preLoadCbk; + void *preLoadCbkData; + QtPDFLoadCbk postLoadCbk; + void *postLoadCbkData; + QtPDFActionCbk actionCbk; + void *actionCbkData; + QtPDFLinkCbk linkCbk; + void *linkCbkData; + QtPDFSelectDoneCbk selectDoneCbk; + void *selectDoneCbkData; + QtPDFPaintDoneCbk paintDoneCbk; + void *paintDoneCbkData; + + GBool hyperlinksEnabled; + GBool externalHyperlinksEnabled; + GBool selectEnabled; + GBool panEnabled; + GBool showPasswordDialog; +}; + +#endif |