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pdfviewerwidget.cpp
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pdfviewerwidget.cpp
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/****************************************************************************
**
** copyright : (C) 2003-2011 by Pascal Brachet
** http://www.xm1math.net/texmaker/
**
** Parts of this file come from Texworks (GPL) Copyright (C) 2007-2010 Jonathan Kew
** Parts of this file come from the documentation of Qt. It was originally
** published as part of Qt Quarterly.
** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information ([email protected])
**
**
****************************************************************************/
#include "pdfviewerwidget.h"
#include <QtGui>
#include <QAction>
#include <QFontMetrics>
#include <QDebug>
#include <QPrinter>
#include <QPrintDialog>
#include <QSettings>
#include <QTextStream>
#include <QKeySequence>
#include <QDesktopServices>
#include <QTextCodec>
#include "poppler-qt4.h"
#define SYNCTEX_GZ_EXT ".synctex.gz"
#define SYNCTEX_EXT ".synctex"
PdfViewerWidget::PdfViewerWidget( const QString fileName, const QString externalCommand, const QString ghostscriptCommand, const QString psize,const QKeySequence edfocus,const QString SpellLang, const qreal startScale ,QWidget* parent)
: QWidget( parent) {
spell_lang=SpellLang;
KeySequenceEditorFocus=edfocus;
canDisplayPixmap=false;
pdf_file=fileName;
viewpdf_command=externalCommand;
gswin32c_command=ghostscriptCommand;
paper_size=psize;
lastFile=fileName;
lastPage=1;
lastHpos=0;
lastScale=startScale;
fileLoaded=false;
currentPage=1;
doc = 0;
scanner=NULL;
path= QPainterPath();
deltaMax=10;
splitter=new MiniSplitter(this);
splitter->setOrientation(Qt::Vertical);
/**************************************/
QFrame *centralFrameBis=new QFrame(splitter);
centralFrameBis->setLineWidth(0);
centralFrameBis->setFrameShape(QFrame::NoFrame);
centralFrameBis->setFrameShadow(QFrame::Plain);
centralFrameBis->setFrameStyle(QFrame::NoFrame);
QFrame *centralFrame=new QFrame(centralFrameBis);
centralFrame->setLineWidth(0);
centralFrame->setFrameShape(QFrame::NoFrame);
centralFrame->setFrameShadow(QFrame::Plain);
centralFrame->setFrameStyle(QFrame::NoFrame);
listpagesWidget=new QListWidget(centralFrame);
QPalette palette;
QBrush brush(QColor(19, 104, 114, 255));
brush.setStyle(Qt::SolidPattern);
palette.setBrush(QPalette::Active, QPalette::Text, brush);
QBrush brush1(QColor(222, 228, 235, 255));
brush1.setStyle(Qt::SolidPattern);
palette.setBrush(QPalette::Active, QPalette::Base, brush1);
palette.setBrush(QPalette::Inactive, QPalette::Text, brush);
palette.setBrush(QPalette::Inactive, QPalette::Base, brush1);
QBrush brush2(QColor(166, 165, 165, 255));
brush2.setStyle(Qt::SolidPattern);
palette.setBrush(QPalette::Disabled, QPalette::Text, brush2);
QBrush brush3(QColor(244, 244, 244, 255));
brush3.setStyle(Qt::SolidPattern);
palette.setBrush(QPalette::Disabled, QPalette::Base, brush3);
palette.setColor( listpagesWidget->backgroundRole(), QColor( "#DEE4EB" ) );
listpagesWidget->setPalette(palette);
listpagesWidget->setAutoFillBackground( true );
/*QPalette p( listpagesWidget->palette() );
p.setColor( listpagesWidget->backgroundRole(), QColor( "#DEE4EB" ) );
listpagesWidget->setPalette( p );*/
listpagesWidget->setFrameShape(QFrame::NoFrame);
listpagesWidget->setFrameShadow(QFrame::Plain);
listpagesWidget->viewport()->setStyleSheet(QString::fromUtf8("border: 1px solid;\n"
"border-right-color: rgb(19, 104, 114);\n"
"border-top-color: rgb(222, 228, 235);\n"
"border-bottom-color: rgb(222, 228, 235);\n"
"border-left-color: rgb(222, 228, 235);\n"
""));
listpagesWidget->setLineWidth(0);
centralToolBarBis=new QToolBar("ToolBar",centralFrame);
centralToolBarBis->setFloatable(false);
centralToolBarBis->setOrientation(Qt::Horizontal);
centralToolBarBis->setMovable(false);
centralToolBarBis->setIconSize(QSize(16,16 ));
centralToolBarBis->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum);
toggleStructAct=new QAction(QIcon(":/images/structure.png"),tr("Show/Hide Table of contents"),this);
connect(toggleStructAct, SIGNAL(triggered()), this, SLOT(ToggleStructure()));
centralToolBarBis->addAction(toggleStructAct);
centralToolBarBis->addSeparator();
upAct = new QAction(QIcon(":/images/up.png"), tr("Previous"), this);
//upAct->setShortcut(QKeySequence::MoveToPreviousPage);
centralToolBarBis->addAction(upAct);
downAct = new QAction(QIcon(":/images/down.png"), tr("Next"), this);
//downAct->setShortcut(QKeySequence::MoveToNextPage);
centralToolBarBis->addAction(downAct);
centralToolBarBis->addSeparator();
fitWithAct = new QAction(QIcon(":/images/zoom-fit-width.png"), tr("Fit Width"), this);
centralToolBarBis->addAction(fitWithAct);
fitPageAct = new QAction(QIcon(":/images/zoom-fit-best.png"), tr("Fit Page"), this);
centralToolBarBis->addAction(fitPageAct);
zoominAct = new QAction(QIcon(":/images/zoom-in.png"), tr("Zoom In"), this);
zoominAct->setShortcut(QKeySequence::ZoomIn);
centralToolBarBis->addAction(zoominAct);
zoomoutAct = new QAction(QIcon(":/images/zoom-out.png"), tr("Zoom Out"), this);
zoomoutAct->setShortcut(QKeySequence::ZoomOut);
centralToolBarBis->addAction(zoomoutAct);
scaleComboBox = new QComboBox(centralToolBarBis);
zoomCustom = new QLineEdit();
//QValidator *validatorZoom = new QIntValidator(25, 400, this);
QValidator *validatorZoom = new QRegExpValidator(QRegExp("\\d{0,3}%?"), this);
zoomCustom->setValidator(validatorZoom);
scaleComboBox->setInsertPolicy(QComboBox::NoInsert);
scalePercents << "25%" << "50%" << "75%" << "100%" << "125%" << "150%" << "200%" << "300%" << "400%";
scaleComboBox->addItems(scalePercents);
scaleComboBox->setCurrentIndex(3);
scaleComboBox->setEditable(true);
scaleComboBox->setLineEdit(zoomCustom);
centralToolBarBis->addWidget(scaleComboBox);
centralToolBarBis->addSeparator();
searchLineEdit = new QLineEdit(centralToolBarBis);
centralToolBarBis->addWidget(searchLineEdit);
findButton=new QPushButton(tr("Find"),centralToolBarBis);
centralToolBarBis->addWidget(findButton);
centralToolBarBis->addSeparator();
QWidget* spacer = new QWidget();
spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
centralToolBarBis->addWidget(spacer);
historyBackAct = new QAction(QIcon(":/images/errorprev.png"), tr("Previous Position"), this);
//historyBackAct->setShortcut(QKeySequence::Back);
//connect(historyBackAct, SIGNAL(triggered()), this, SLOT(historyBack()));
centralToolBarBis->addAction(historyBackAct);
historyForwardAct = new QAction(QIcon(":/images/errornext.png"), tr("Next Position"), this);
//historyForwardAct->setShortcut(QKeySequence::Forward);
//connect(historyForwardAct, SIGNAL(triggered()), this, SLOT(historyForward()));
centralToolBarBis->addAction(historyForwardAct);
connect( this, SIGNAL( backwardAvailable( bool ) ), historyBackAct, SLOT( setEnabled( bool ) ) );
connect( this, SIGNAL( forwardAvailable( bool ) ), historyForwardAct, SLOT( setEnabled( bool ) ) );
centralToolBarBis->addSeparator();
printAct = new QAction(QIcon(":/images/print.png"), tr("Print"), this);
centralToolBarBis->addAction(printAct);
externAct = new QAction(QIcon(":/images/viewpdf.png"), tr("External Viewer"), this);
centralToolBarBis->addAction(externAct);
checkerAct = new QAction(QIcon(":/images/pdfchecker.png"), tr("Check Spelling and Grammar on this page"), this);
centralToolBarBis->addAction(checkerAct);
scrollArea=new PdfScrollArea(centralFrame);
scrollArea->setWidgetResizable(false);
scrollArea->verticalLayout->setSizeConstraint(QLayout::SetFixedSize);
scrollArea->verticalLayout->setSpacing(10);
scrollArea->verticalLayout->setMargin(0);
scrollArea->setAlignment(Qt::AlignCenter);
connect(scrollArea,SIGNAL(doHScroll(int)), this, SLOT(setHpos(int)));
CentralLayout= new QHBoxLayout(centralFrame);
CentralLayout->setSpacing(0);
CentralLayout->setMargin(0);
CentralLayout->addWidget(listpagesWidget);
CentralLayout->addWidget(scrollArea);
CentralLayoutBis= new QVBoxLayout(centralFrameBis);
CentralLayoutBis->setSpacing(0);
CentralLayoutBis->setMargin(0);
CentralLayoutBis->addWidget(centralToolBarBis);
CentralLayoutBis->addWidget(centralFrame);
/***************************************/
StructureTreeWidget=new QTreeWidget(splitter);
StructureTreeWidget->setColumnCount(1);
StructureTreeWidget->header()->hide();
StructureTreeWidget->setEditTriggers(QAbstractItemView::NoEditTriggers);
StructureTreeWidget->header()->setHorizontalScrollMode(QAbstractItemView::ScrollPerPixel);
StructureTreeWidget->header()->setResizeMode(0, QHeaderView::ResizeToContents);
StructureTreeWidget->header()->setStretchLastSection(false);
StructureTreeWidget->setIndentation(15);
StructureTreeWidget->setFrameStyle(QFrame::NoFrame);
//CentralLayoutBis->addWidget(StructureTreeWidget);
splitter->addWidget(centralFrameBis);
splitter->addWidget(StructureTreeWidget);
QVBoxLayout *mainlayout= new QVBoxLayout(this);
mainlayout->setSpacing(0);
mainlayout->setMargin(0);
mainlayout->addWidget(splitter);
QList<int> sizes;
sizes << 200 << height()-200;
splitter->setSizes( sizes );
showingStructure=false;
StructureTreeWidget->hide();
searchLineEdit->setEnabled(false);
findButton->setEnabled(false);
scaleComboBox->setEnabled(false);
upAct->setEnabled(false);
downAct->setEnabled(false);
fitWithAct->setEnabled(false);
fitPageAct->setEnabled(false);
zoominAct->setEnabled(false);
zoomoutAct->setEnabled(false);
connectActions();
//openFile(pdf_file,viewpdf_command,gswin32c_command);
}
PdfViewerWidget::~PdfViewerWidget() {
if (browserWindow) browserWindow->close();
if (scanner != NULL) synctex_scanner_free(scanner);
if (proc && proc->state()==QProcess::Running) {
proc->kill();
delete proc ;
}
}
void PdfViewerWidget::openFile(QString fn,QString ec,QString pc) {
show();
showingStructure=false;
StructureTreeWidget->hide();
path= QPainterPath();
altern=1;
currentScale=1;
show();
pdf_file=fn;
viewpdf_command=ec;
gswin32c_command=pc;
int lpage=lastPage;
qreal lscale=lastScale;
QFontMetrics fm(qApp->font());
if (scanner != NULL) {
synctex_scanner_free(scanner);
scanner = NULL;
}
Poppler::Document *oldDocument = doc;
doc = Poppler::Document::load(fn);
if (doc) {
delete oldDocument;
doc->setRenderHint(Poppler::Document::Antialiasing);
doc->setRenderHint(Poppler::Document::TextAntialiasing);
searchLocation = QRectF();
}
if (doc!=0) {
searchLineEdit->setEnabled(true);
findButton->setEnabled(true);
scaleComboBox->setEnabled(true);
upAct->setEnabled(false);
downAct->setEnabled(true);
fitWithAct->setEnabled(true);
fitPageAct->setEnabled(true);
zoominAct->setEnabled(true);
zoomoutAct->setEnabled(true);
StructureTreeWidget->clear();
const QDomDocument *toc = doc->toc();
if (toc) {
ParseToc(*toc, StructureTreeWidget, 0);
delete toc;
}
QString syncFile = QFileInfo(fn).canonicalFilePath();
scanner = synctex_scanner_new_with_output_file(syncFile.toUtf8().data(), NULL, 1);
listpagesWidget->setFixedWidth(30+fm.width(QString::number(doc->numPages())));
if ((fn==lastFile) && (lpage <= doc->numPages()) && (lpage>0)) {
currentPage=lpage;
currentScale=lscale;
if ((currentScale < 0.25) || (currentScale > 4)) initPages(true);
else initPages(false);
} else {
currentPage=1;
lastPage=1;
initPages(true);
lastScale=currentScale;
}
previousScale=currentScale;
fileLoaded=true;
lastFile=fn;
setWindowTitle(QFileInfo(fn).fileName());
clearHistory();
gotoPage(currentPage);
disconnect(scrollArea,SIGNAL(doHScroll(int)), this, SLOT(setHpos(int)));
if (scrollArea->horizontalScrollBar()->isVisible()) {
QTimer::singleShot( 500,this, SLOT(jumptoHpos()) );
}
connect(scrollArea,SIGNAL(doHScroll(int)), this, SLOT(setHpos(int)));
} else {
listpagesWidget->setFixedWidth(30+fm.width("99"));
QMessageBox::warning( this,tr("Error"),tr("File not found"));
fileLoaded=false;
}
}
void PdfViewerWidget::initPages(bool checkScale) {
canDisplayPixmap=false;
disconnectActions();
qDeleteAll(listPdfWidgets);
disconnect(scrollArea, SIGNAL(doRange()), this, SLOT(setScrollMax()));
disconnect(scrollArea, SIGNAL(doScroll(int)), this, SLOT(checkPage(int)));
listpagesWidget->clear();
listPdfWidgets.clear();
listPdfWidgetsPos.clear();
listPdfWidgetsStatus.clear();
PdfDocumentWidget *pdfWidget;
int pos=0;
pdfWidget = new PdfDocumentWidget(0,0,doc->page(0));
if (checkScale) {
pdfWidget->updatePixmap();
qreal portWidth = width()-listpagesWidget->width()-10;
//qreal portWidth = scrollArea->viewport()->width();
QSizeF pageSize = doc->page(0)->pageSizeF();
if (pageSize.width()!=0) currentScale = (portWidth-30) / pageSize.width()*72.0/pdfWidget->physicalDpiX();
//(portWidth-50) / pdfWidget->pixmap()->width();
if (currentScale < 0.25) currentScale = 0.25;
else if (currentScale > 4) currentScale = 4;
lastScale=currentScale;
}
pdfWidget->setScale(currentScale);
pdfWidget->updatePixmap();
zoomCustom->setText(QString::number(int(currentScale*100)) + "%");
int widthpix=(int) pdfWidget->pixmap()->width();
int heightpix=(int) pdfWidget->pixmap()->height();
if (pdfWidget) delete pdfWidget;
QFont deft=QFont("DejaVu Sans Condensed",qApp->font().pointSize());
for (int i = 0; i < doc->numPages(); ++i) {
listPdfWidgetsStatus.append(0);
QListWidgetItem *item=new QListWidgetItem(QString::number(i+1));
item->setFont(deft);
listpagesWidget->addItem(item);
pdfWidget = new PdfDocumentWidget(scrollArea,i,doc->page(i));
pdfWidget->setScale(currentScale);
connect(pdfWidget, SIGNAL(syncpage(int, const QPointF&)), this, SLOT(jumpToEditor(int, const QPointF&)));
connect(pdfWidget, SIGNAL(updateDone(int)), this, SLOT(updatePageStatus(int)));
connect(pdfWidget, SIGNAL(gotoDest(int,int,int)), this, SLOT(jumpToDest(int,int,int)));
connect(pdfWidget, SIGNAL(pressOnPoint(QPoint)), scrollArea, SLOT(pressHere(QPoint)));
connect(pdfWidget, SIGNAL(moveOnPoint(QPoint)), scrollArea, SLOT(moveHere(QPoint)));
pdfWidget->createblankPixmap(1,heightpix);
listPdfWidgets.append(pdfWidget);
listPdfWidgetsPos.append(pos);
pos+=(int) pdfWidget->pixmap()->height()+scrollArea->verticalLayout->spacing();
scrollArea->verticalLayout->addWidget(pdfWidget);
}
//scrollArea->verticalScrollBar()->setPageStep(heightpix);
scrollArea->viewport()->update();
if (scrollArea->verticalScrollBar()->pageStep()<pos) scrollMax=pos-scrollArea->verticalScrollBar()->pageStep()+scrollArea->verticalLayout->spacing();
else scrollMax=pos;
if (scrollArea->viewport()->height()>pos) scrollMax=0;
scrollArea->verticalScrollBar()->setMaximum(scrollMax);
scrollArea->horizontalScrollBar()->setMaximum(widthpix);
connect(scrollArea, SIGNAL(doScroll(int)), this, SLOT(checkPage(int)));
connect(scrollArea, SIGNAL(doRange()), this, SLOT(setScrollMax()));
connectActions();
deltaMax=10;
if (heightpix!=0) deltaMax=(int) (scrollArea->viewport()->height()/heightpix)+2;
canDisplayPixmap=true;
scrollArea->setFocus();
}
void PdfViewerWidget::initPagesWithNewScale() {
canDisplayPixmap=false;
for (int i = 0; i < doc->numPages(); ++i) listPdfWidgetsStatus.replace(i,0);
PdfDocumentWidget *pdfWidget;
pdfWidget = new PdfDocumentWidget(0,0,doc->page(0));
pdfWidget->setScale(currentScale);
pdfWidget->updatePixmap();
int widthpix=(int) pdfWidget->pixmap()->width();
int heightpix=(int) pdfWidget->pixmap()->height();
if (pdfWidget) delete pdfWidget;
disconnectActions();
int pos=0;
int w=0;
for (int i = 0; i < doc->numPages(); ++i) {
listPdfWidgetsStatus.replace(i,0);
listPdfWidgets.at(i)->clearPaths();
listPdfWidgets.at(i)->setScale(currentScale);
listPdfWidgets.at(i)->createblankPixmap(1,heightpix);
listPdfWidgetsPos.replace(i,pos);
pos+=(int) (listPdfWidgets.at(i)->pixmap()->height()+scrollArea->verticalLayout->spacing());
}
//scrollArea->verticalScrollBar()->setPageStep(heightpix);
scrollArea->viewport()->update();
if (scrollArea->verticalScrollBar()->pageStep()<pos) scrollMax=pos-scrollArea->verticalScrollBar()->pageStep()+scrollArea->verticalLayout->spacing();
else scrollMax=pos;
if (scrollArea->viewport()->height()>pos) scrollMax=0;
scrollArea->verticalScrollBar()->setMaximum(scrollMax);
scrollArea->horizontalScrollBar()->setMaximum(widthpix);
connectActions();
deltaMax=10;
if (heightpix!=0) deltaMax=(int) (scrollArea->viewport()->height()/heightpix)+2;
canDisplayPixmap=true;
scrollArea->setFocus();
}
void PdfViewerWidget::displayPage(int page) {
if ((page>=0) && (page < doc->numPages())) {
listPdfWidgets.at(page)->setScale(currentScale);
listPdfWidgets.at(page)->updatePixmap();
}
}
void PdfViewerWidget::displayNewPage() {
int newpage=-1;
pageMutex.lock();
if (listPdfWidgetsStatus.at(currentPage-1)==0) newpage=currentPage-1;
else {
int delta=1;
int max=doc->numPages()-currentPage;
if (currentPage-1>max) max=currentPage-1;
while (delta<=max) {
newpage=currentPage-1+delta*altern;
if ((newpage<doc->numPages()) && (newpage>=0)) {
if (listPdfWidgetsStatus.at(newpage)==0) {
break;
}
}
newpage=currentPage-1-delta*altern;
if ((newpage<doc->numPages()) && (newpage>=0)) {
if (listPdfWidgetsStatus.at(newpage)==0) {
break;
}
}
delta+=1;
}
}
if ((newpage>=0) && (newpage < doc->numPages()) && (abs(newpage-currentPage+1)<=deltaMax) && canDisplayPixmap) {
if (listPdfWidgetsStatus.at(newpage)==0) {
listPdfWidgets.at(newpage)->setScale(currentScale);
listPdfWidgets.at(newpage)->updatePixmap();
}
pageMutex.unlock();
QTimer::singleShot( 30,this, SLOT(displayNewPage()) );
} else {
pageMutex.unlock();
}
altern=-altern;
}
void PdfViewerWidget::updatePageStatus(int page) {
int pos=0;
/*for (int i = 0; i < doc->numPages(); ++i)
{
listPdfWidgetsPos.replace(i,pos);
pos+=(int) listPdfWidgets.at(i)->pixmap()->height()+scrollArea->verticalLayout->contentsMargins().bottom();
}*/
listPdfWidgetsStatus.replace(page,1);
scrollArea->update();
pageMutex.unlock();
disconnect(scrollArea,SIGNAL(doHScroll(int)), this, SLOT(setHpos(int)));
if (scrollArea->horizontalScrollBar()->isVisible()) {
QTimer::singleShot( 500,this, SLOT(jumptoHpos()) );
}
connect(scrollArea,SIGNAL(doHScroll(int)), this, SLOT(setHpos(int)));
}
void PdfViewerWidget::setScrollMax() {
disconnect(scrollArea, SIGNAL(doRange()), this, SLOT(setScrollMax()));
if (scrollArea->verticalScrollBar()->maximum()<scrollMax) scrollArea->verticalScrollBar()->setMaximum(scrollMax);
connect(scrollArea, SIGNAL(doRange()), this, SLOT(setScrollMax()));
}
void PdfViewerWidget::connectActions() {
//connect(findAct, SIGNAL(triggered()), this, SLOT(enableSearch()));
connect(upAct, SIGNAL(triggered()), this, SLOT(pageUp()));
connect(downAct, SIGNAL(triggered()), this, SLOT(pageDown()));
connect(listpagesWidget, SIGNAL(itemActivated ( QListWidgetItem*)), this, SLOT(slotItemClicked(QListWidgetItem*)));
connect(listpagesWidget, SIGNAL(itemClicked ( QListWidgetItem*)), this, SLOT(slotItemClicked(QListWidgetItem*)));
connect(StructureTreeWidget, SIGNAL(itemActivated (QTreeWidgetItem*,int)), this, SLOT(ClickedOnStructure(QTreeWidgetItem*,int)));
connect(StructureTreeWidget, SIGNAL(itemClicked (QTreeWidgetItem*,int)), this, SLOT(ClickedOnStructure(QTreeWidgetItem*,int)));
connect(fitWithAct, SIGNAL(triggered()), this, SLOT(fitWidth()));
connect(fitPageAct, SIGNAL(triggered()), this, SLOT(fitPage()));
connect(zoominAct, SIGNAL(triggered()), this, SLOT(zoomIn()));
connect(zoomoutAct, SIGNAL(triggered()), this, SLOT(zoomOut()));
connect(zoomCustom, SIGNAL(returnPressed()),this, SLOT(userZoom()));
connect(scaleComboBox, SIGNAL(currentIndexChanged(QString)),this, SLOT(scaleDocumentZoom(QString)));
connect(searchLineEdit, SIGNAL(returnPressed()), this, SLOT(searchDocument()));
connect(findButton, SIGNAL(clicked()), this, SLOT(searchDocument()));
if (scrollArea) connect(scrollArea, SIGNAL(pagezoomOut()), this, SLOT(zoomOut()));
if (scrollArea) connect(scrollArea, SIGNAL(pagezoomIn()), this, SLOT(zoomIn()));
connect(historyBackAct, SIGNAL(triggered()), this, SLOT(historyBack()));
connect(historyForwardAct, SIGNAL(triggered()), this, SLOT(historyForward()));
connect(printAct, SIGNAL(triggered()), this, SLOT(printPdf()));
connect(externAct, SIGNAL(triggered()), this, SLOT(runExternalViewer()));
connect(checkerAct, SIGNAL(triggered()), this, SLOT(checkSpellGrammarPage()));
//connect( this, SIGNAL( backwardAvailable( bool ) ), historyBackAct, SLOT( setEnabled( bool ) ) );
//connect( this, SIGNAL( forwardAvailable( bool ) ), historyForwardAct, SLOT( setEnabled( bool ) ) );
}
void PdfViewerWidget::disconnectActions() {
//disconnect(findAct, SIGNAL(triggered()), this, SLOT(enableSearch()));
disconnect(upAct, SIGNAL(triggered()), this, SLOT(pageUp()));
disconnect(downAct, SIGNAL(triggered()), this, SLOT(pageDown()));
disconnect(listpagesWidget, SIGNAL(itemActivated ( QListWidgetItem*)), this, SLOT(slotItemClicked(QListWidgetItem*)));
disconnect(listpagesWidget, SIGNAL(itemClicked ( QListWidgetItem*)), this, SLOT(slotItemClicked(QListWidgetItem*)));
disconnect(StructureTreeWidget, SIGNAL(itemActivated (QTreeWidgetItem*,int)), this, SLOT(ClickedOnStructure(QTreeWidgetItem*,int)));
disconnect(StructureTreeWidget, SIGNAL(itemClicked (QTreeWidgetItem*,int)), this, SLOT(ClickedOnStructure(QTreeWidgetItem*,int)));
disconnect(fitWithAct, SIGNAL(triggered()), this, SLOT(fitWidth()));
disconnect(fitPageAct, SIGNAL(triggered()), this, SLOT(fitPage()));
disconnect(zoominAct, SIGNAL(triggered()), this, SLOT(zoomIn()));
disconnect(zoomoutAct, SIGNAL(triggered()), this, SLOT(zoomOut()));
disconnect(zoomCustom, SIGNAL(returnPressed()),this, SLOT(userZoom()));
disconnect(scaleComboBox, SIGNAL(currentIndexChanged(QString)),this, SLOT(scaleDocumentZoom(QString)));
disconnect(searchLineEdit, SIGNAL(returnPressed()), this, SLOT(searchDocument()));
disconnect(findButton, SIGNAL(clicked()), this, SLOT(searchDocument()));
if (scrollArea) disconnect(scrollArea, SIGNAL(pagezoomOut()), this, SLOT(zoomOut()));
if (scrollArea) disconnect(scrollArea, SIGNAL(pagezoomIn()), this, SLOT(zoomIn()));
disconnect(historyBackAct, SIGNAL(triggered()), this, SLOT(historyBack()));
disconnect(historyForwardAct, SIGNAL(triggered()), this, SLOT(historyForward()));
disconnect(printAct, SIGNAL(triggered()), this, SLOT(printPdf()));
disconnect(externAct, SIGNAL(triggered()), this, SLOT(runExternalViewer()));
disconnect(checkerAct, SIGNAL(triggered()), this, SLOT(checkSpellGrammarPage()));
//disconnect( this, SIGNAL( backwardAvailable( bool ) ), historyBackAct, SLOT( setEnabled( bool ) ) );
//disconnect( this, SIGNAL( forwardAvailable( bool ) ), historyForwardAct, SLOT( setEnabled( bool ) ) );
}
void PdfViewerWidget::jumpToPdfFromSource(QString sourceFile, int source_line) {
show();
if (windowState()==Qt::WindowMinimized) setWindowState(windowState() & ~Qt::WindowMinimized | Qt::WindowActive);
qApp->setActiveWindow(this);
activateWindow();
if (!fileLoaded) return;
if (scanner == NULL) {
gotoPage(currentPage);
return;
}
const QFileInfo sourceFileInfo(sourceFile);
QDir curDir(QFileInfo(pdf_file).canonicalPath());
synctex_node_t node = synctex_scanner_input(scanner);
QString name;
bool found = false;
while (node != NULL) {
name = QString::fromUtf8(synctex_scanner_get_name(scanner, synctex_node_tag(node)));
const QFileInfo fi(curDir, name);
if (fi == sourceFileInfo) {
found = true;
break;
}
node = synctex_node_sibling(node);
}
if (!found) {
gotoPage(currentPage);
return;
}
if (synctex_display_query(scanner, name.toUtf8().data(), source_line, 0) > 0) {
int page = -1;
path= QPainterPath();
while ((node = synctex_next_result(scanner)) != NULL) {
if (page == -1) page = synctex_node_page(node);
if (synctex_node_page(node) != page) continue;
QRectF nodeRect(synctex_node_box_visible_h(node),
synctex_node_box_visible_v(node) - synctex_node_box_visible_height(node),
synctex_node_box_visible_width(node),
synctex_node_box_visible_height(node) + synctex_node_box_visible_depth(node));
path.addRect(nodeRect);
}
if (page > 0) {
disconnect(scrollArea, SIGNAL(doScroll(int)), this, SLOT(checkPage(int)));
QRectF r = path.boundingRect();
currentPage=page;
lastPage=currentPage;
int vpos=(int) (listPdfWidgetsPos.at(currentPage-1)-10+(r.top()) * listPdfWidgets.at(currentPage-1)->physicalDpiY() / 72 * currentScale);
int hpos=(int) (r.left() * listPdfWidgets.at(currentPage-1)->physicalDpiX() / 72 * currentScale-10);
scrollArea->setVisible(hpos,vpos,20,scrollMax);
listPdfWidgets.at(currentPage-1)->clearPaths();
path.setFillRule(Qt::WindingFill);
QTimer::singleShot(500,this, SLOT(slotHighlight()) );
updateCurrentPage();
connect(scrollArea, SIGNAL(doScroll(int)), this, SLOT(checkPage(int)));
}
} else {
gotoPage(currentPage);
}
}
void PdfViewerWidget::slotHighlight() {
listPdfWidgets.at(currentPage-1)->setHighlightPath(path);
}
void PdfViewerWidget::gotoPage(int page) {
if (!fileLoaded) return;
if ((page <= doc->numPages()) && (page>=1)) {
currentPage=page;
lastPage=currentPage;
disconnect(scrollArea, SIGNAL(doScroll(int)), this, SLOT(checkPage(int)));
scrollArea->verticalScrollBar()->setValue(listPdfWidgetsPos.at(currentPage-1));
// scrollArea->setVisible(0,listPdfWidgetsPos.at(currentPage-1),0,scrollMax);
updateHistory(listPdfWidgetsPos.at(currentPage-1));
updateCurrentPage();
connect(scrollArea, SIGNAL(doScroll(int)), this, SLOT(checkPage(int)));
}
}
void PdfViewerWidget::checkPage(int value) {
if (!fileLoaded) return;
int old=currentPage;
int i=0;
while (i < doc->numPages()) {
if ((int) (listPdfWidgetsPos.at(i)-scrollArea->viewport()->height()/2)>value) break;
i++;
}
currentPage=i;
lastPage=currentPage;
updateCurrentPage();
}
void PdfViewerWidget::updateCurrentPage() {
if (!fileLoaded) return;
if (currentPage==1) upAct->setEnabled(false);
else upAct->setEnabled(true);
if (currentPage==doc->numPages()) downAct->setEnabled(false);
else downAct->setEnabled(true);
QList<QListWidgetItem *> fItems=listpagesWidget->findItems (QString::number(currentPage),Qt::MatchRecursive);
if ((fItems.size()>0 ) && (fItems.at(0))) listpagesWidget->setCurrentItem(fItems.at(0));
displayNewPage();
}
void PdfViewerWidget::jumpToDest(int page,int left, int top) {
if (!fileLoaded) return;
if ((page <= doc->numPages()) && (page>=1)) {
currentPage=page;
lastPage=currentPage;
disconnect(scrollArea, SIGNAL(doScroll(int)), this, SLOT(checkPage(int)));
int vpos=listPdfWidgetsPos.at(currentPage-1)-10+top;
int hpos=left-10;
scrollArea->setVisible(hpos,vpos,20,scrollMax);
updateCurrentPage();
updateHistory(vpos);
connect(scrollArea, SIGNAL(doScroll(int)), this, SLOT(checkPage(int)));
}
}
void PdfViewerWidget::userZoom() {
previousScale=currentScale;
scaleDocumentZoom(zoomCustom->text());
}
void PdfViewerWidget::scaleDocumentZoom(QString zoom) {
if (!fileLoaded) return;
if (zoom.contains("%")) zoom.remove("%");
if (zoom.toInt() > 0 && zoom.toInt() <= 400) {
qreal s=1;
currentScale=zoom.toFloat() / 100.0;
if (currentScale < 0.25) currentScale = 0.25;
else if (currentScale > 4) currentScale = 4;
if (previousScale!=0) s=currentScale/previousScale;
int newhpos=(int) (s*(scrollArea->horizontalScrollBar()->value()+scrollArea->viewport()->width()/2)-scrollArea->viewport()->width()/2);
int newvpos=(int) (s*(scrollArea->verticalScrollBar()->value()+scrollArea->viewport()->height()/2)-scrollArea->viewport()->height()/2);
lastScale=currentScale;
previousScale=currentScale;
//zoomCustom->setText(QString::number(int(currentScale*100)) + "%");
disconnect(scrollArea, SIGNAL(doRange()), this, SLOT(setScrollMax()));
disconnect(scrollArea, SIGNAL(doScroll(int)), this, SLOT(checkPage(int)));
initPagesWithNewScale();
connect(scrollArea, SIGNAL(doScroll(int)), this, SLOT(checkPage(int)));
connect(scrollArea, SIGNAL(doRange()), this, SLOT(setScrollMax()));
//gotoPage(currentPage);
updateCurrentPage();
scrollArea->horizontalScrollBar()->setValue(newhpos);
scrollArea->verticalScrollBar()->setValue(newvpos);
clearHistory();
}
}
void PdfViewerWidget::searchDocument() {
if (!fileLoaded) return;
//QRectF location;
if (searchLineEdit->text().isEmpty()) return;
disconnect(scrollArea, SIGNAL(doScroll(int)), this, SLOT(checkPage(int)));
//QMetaObject::invokeMethod(this, "searchForwards", Qt::QueuedConnection,Q_ARG(QString,searchLineEdit->text()));
searchForwards(searchLineEdit->text());
connect(scrollArea, SIGNAL(doScroll(int)), this, SLOT(checkPage(int)));
//else location = searchBackwards(searchLineEdit->text());
//QPoint target = pdfWidget->matrix().mapRect(location).center().toPoint();
//scrollArea->ensureVisible(target.x(), target.y());
}
/*QRectF PdfViewerWidget::searchBackwards(const QString &text)
{
QRectF oldLocation = searchLocation;
QPainterPath path;
int page = currentPage;
if (oldLocation.isNull())
page -= 1;
while (page > -1) {
QList<QRectF> locations;
searchLocation = QRectF();
while (doc->page(page)->search(text, searchLocation,
Poppler::Page::NextResult, Poppler::Page::CaseInsensitive)) {
if (searchLocation != oldLocation)
locations.append(searchLocation);
else
break;
}
int index = locations.indexOf(oldLocation);
if (index == -1 && !locations.isEmpty()) {
searchLocation = locations.last();
//showPage(page + 1);
return searchLocation;
} else if (index > 0) {
searchLocation = locations[index - 1];
//showPage(page + 1);
return searchLocation;
}
oldLocation = QRectF();
page -= 1;
}
if (currentPage == doc->numPages() - 1)
return QRectF();
oldLocation = QRectF();
page = doc->numPages() - 1;
while (page > currentPage) {
QList<QRectF> locations;
searchLocation = QRectF();
while (doc->page(page)->search(text, searchLocation,
Poppler::Page::NextResult, Poppler::Page::CaseInsensitive)) {
locations.append(searchLocation);
}
if (!locations.isEmpty()) {
searchLocation = locations.last();
//showPage(page + 1);
return searchLocation;
}
page -= 1;
}
return QRectF();
}*/
void PdfViewerWidget::searchForwards(const QString &text) {
int page = currentPage-1;
while (page < doc->numPages()) {
if (currentPage>=1) {
listPdfWidgets.at(currentPage-1)->clearPaths();
displayPage(currentPage-1);
}
if (doc->page(page)->search(text, searchLocation,Poppler::Page::NextResult, Poppler::Page::CaseInsensitive)) {
if (!searchLocation.isNull()) {
path= QPainterPath();
path.addRect(searchLocation);
QRectF r = path.boundingRect();
currentPage=page+1;
lastPage=currentPage;
int vpos=(int) (listPdfWidgetsPos.at(currentPage-1)-10+(r.top() + r.bottom()) / 2 * listPdfWidgets.at(currentPage-1)->physicalDpiY() / 72 * currentScale);
int hpos=(int) ((r.left()+r.right())/2 * listPdfWidgets.at(currentPage-1)->physicalDpiX() / 72 * currentScale-10);
scrollArea->setVisible(hpos,vpos,20,scrollMax);
path.setFillRule(Qt::WindingFill);
listPdfWidgets.at(currentPage-1)->setSearchPath(path);
updateCurrentPage();
return;
}
}
page += 1;
searchLocation = QRectF();
}
page = 0;
while (page < currentPage-1) {
if (currentPage>=1) {
listPdfWidgets.at(currentPage-1)->clearPaths();
displayPage(currentPage-1);
}
searchLocation = QRectF();
if (doc->page(page)->search(text, searchLocation,Poppler::Page::NextResult, Poppler::Page::CaseInsensitive)) {
if (!searchLocation.isNull()) {
path= QPainterPath();
path.addRect(searchLocation);
QRectF r = path.boundingRect();
currentPage=page+1;
lastPage=currentPage;
int vpos=(int) (listPdfWidgetsPos.at(currentPage-1)-10+(r.top() + r.bottom()) / 2 * listPdfWidgets.at(currentPage-1)->physicalDpiY() / 72 * currentScale);
int hpos=(int) ((r.left()+r.right())/2 * listPdfWidgets.at(currentPage-1)->physicalDpiX() / 72 * currentScale-10);
scrollArea->setVisible(hpos,vpos,20,scrollMax);
path.setFillRule(Qt::WindingFill);
listPdfWidgets.at(currentPage-1)->setSearchPath(path);
//if (!path.isEmpty()) displayPage(currentPage-1);
updateCurrentPage();
return;
}
}
page += 1;
}
}
void PdfViewerWidget::enableSearch() {
searchLineEdit->setFocus();
}
void PdfViewerWidget::pageUp() {
if (!fileLoaded) return;
if (currentPage>1) {
currentPage--;
lastPage=currentPage;
gotoPage(currentPage);
}
}
void PdfViewerWidget::pageDown() {
if (!fileLoaded) return;
if (currentPage<doc->numPages()) {
currentPage++;
lastPage=currentPage;
gotoPage(currentPage);
}
}
void PdfViewerWidget::fitWidth() {
if (!fileLoaded) return;
previousScale=currentScale;
qreal portWidth = scrollArea->viewport()->width();
QSizeF pageSize = doc->page(currentPage-1)->pageSizeF();
if (pageSize.width()!=0) currentScale = (portWidth-10) / pageSize.width()*72.0/listPdfWidgets.at(currentPage-1)->physicalDpiX();
else return;
if (currentScale < 0.25) currentScale = 0.25;
else if (currentScale > 4) currentScale = 4;
lastScale=currentScale;
zoomCustom->setText(QString::number(int(currentScale*100)) + "%");
scaleDocumentZoom(zoomCustom->text());
}
void PdfViewerWidget::fitPage() {
if (!fileLoaded) return;
previousScale=currentScale;
qreal portWidth = scrollArea->viewport()->width();
qreal portHeight = scrollArea->viewport()->height();
if (scrollArea->horizontalScrollBar()->isVisible()) portHeight+=scrollArea->horizontalScrollBar()->height();
QSizeF pageSize = doc->page(currentPage-1)->pageSizeF();
qreal scaleW;
qreal scaleH;
if (pageSize.width()!=0) scaleW = (portWidth-20-scrollArea->verticalScrollBar()->width()) / pageSize.width()*72.0/listPdfWidgets.at(currentPage-1)->physicalDpiX();
else return;
if (pageSize.height()!=0) scaleH = (portHeight-scrollArea->verticalLayout->spacing() )/ pageSize.height()*72.0/listPdfWidgets.at(currentPage-1)->physicalDpiY();
else return;
if (scaleH < scaleW) currentScale=scaleH;
else currentScale=scaleW ;
if (currentScale < 0.25) currentScale = 0.25;
else if (currentScale > 4) currentScale = 4;
lastScale=currentScale;
zoomCustom->setText(QString::number(int(currentScale*100)) + "%");
scaleDocumentZoom(zoomCustom->text());
}
void PdfViewerWidget::zoomIn() {
if (!fileLoaded) return;
previousScale=currentScale;
currentScale+=0.1;
if (currentScale > 4) currentScale = 4;
lastScale=currentScale;
zoomCustom->setText(QString::number(int(currentScale*100)) + "%");
scaleDocumentZoom(zoomCustom->text());
}
void PdfViewerWidget::zoomOut() {
if (!fileLoaded) return;
previousScale=currentScale;
currentScale-=0.1;
if (currentScale < 0.25) currentScale = 0.25;
lastScale=currentScale;
zoomCustom->setText(QString::number(int(currentScale*100)) + "%");
scaleDocumentZoom(zoomCustom->text());
}
void PdfViewerWidget::runExternalViewer() {
if (!fileLoaded) return;
QString command=viewpdf_command;
command.replace("%.pdf","\""+pdf_file+"\"");
QFileInfo fi(pdf_file);
if (fi.exists()) {
proc = new QProcess( this );
proc->setWorkingDirectory(fi.absolutePath());
proc->start(command);
}
}
void PdfViewerWidget::checkSpellGrammarPage() {
if ((currentPage<1) || (currentPage>doc->numPages())) return;
QString tempDir=QDir::tempPath();
QString prefixFile=QDir::homePath();
prefixFile="texmaker_temp_"+prefixFile.section('/',-1);
prefixFile=QString(QUrl::toPercentEncoding(prefixFile));
prefixFile.remove("%");
QString tempFile=tempDir+"/"+prefixFile+".html";
QTextCodec *codec = QTextCodec::codecForName("UTF-8");
#if defined( Q_WS_X11 )
#ifdef USB_VERSION
QString atdloc=QCoreApplication::applicationDirPath()+"/";
#else
QString atdloc=PREFIX"/share/texmaker/";
#endif
#endif
#if defined( Q_WS_MACX )
QString atdloc=QCoreApplication::applicationDirPath() + "/../Resources/";
#endif
#if defined(Q_WS_WIN)
QString atdloc=QCoreApplication::applicationDirPath() + "/";
#endif
QString pdf_text=doc->page(currentPage-1)->text(QRectF(),Poppler::Page::PhysicalLayout);
QFile fi_html(tempFile);
if (!fi_html.open(QIODevice::WriteOnly)) return;
QTextStream out (&fi_html);
out.setCodec(codec);
out << "<html>\n";
out << "<head>\n";
out << "<title>Texmaker</title>\n";
out << "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />\n";
out << "<style>\n";
out << ".input\n";
out << "{\n";
out << "width:90%;\n";
out << "height:90%;\n";
out << "border: 1px solid black;\n";
out << "padding: 2px;\n";
out << "margin: 2px;\n";
out << "font-family: times;\n";
out << "font-size: 80%;\n";
out << "}\n";
out << "</style>\n";
out << "<script src=\"http://code.jquery.com/jquery-1.4.2.js\"></script>\n";
out << "<script src=\"";
out << atdloc;
out << "/jquery.atd.textarea.js\"></script>\n";
out << "<script src=\"";
out << atdloc;
out << "/csshttprequest.js\"></script>\n";
out << "<link rel=\"stylesheet\" type=\"text/css\" media=\"screen\" href=\"";
out << atdloc;
out << "/atd.css\" />\n";
out << "<script>\n";
out << "function check() {\n";
out << "AtD.rpc_css_lang = document.langform.langchoice.options[document.langform.langchoice.selectedIndex].text;\n";
//out << atd_lang;
//out << "';\n";
out << "AtD.checkTextAreaCrossAJAX('textInput', 'checkLink', 'Click to reset');\n";
out << " };\n";
out << "</script>\n";
out << "</head>\n";
out << "<body BGCOLOR=\"#ffffff\">\n";