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//========================================================================
//
// 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
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