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Window.cpp
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Window.cpp
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#include <QtWidgets>
#include <QAbstractScrollArea>
#include <QAction>
#include <QTemporaryDir>
#include <QNativeGestureEvent>
#include "Window.h"
#include "Printer.h"
#include "ui_Window.h"
#include "QtUtil.h"
#include "FileSave.h"
#include "AboutDialog.h"
#include "MessagesDialog.h"
#include "ExtractPagesDialog.h"
#include "ICCDialog2.h"
#include "ColorsDialog.h"
#include "ProofSettingsDialog.h"
Window::Window(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::Window)
{
// set up the UI
ui->setupUi(this);
setupToolbar();
m_setupComplete = true;
m_fileSave = new FileSave(this);
// contents area initially hidden
m_contents = new ContentsList();
m_contents->setScrollArea(ui->contentsScrollArea);
m_contents->hide();
// create and set up the left-side scrolling area
m_thumbnails = new ThumbnailList();
m_thumbnails->setScrollArea(ui->leftScrollArea);
m_thumbnails->hide(); // initially hidden
connect(m_thumbnails, SIGNAL(imagesReady()), this, SLOT(thumbnailsReady()));
// create and set up the right-side scrolling area
m_pages = new PageList(this);
m_pages->setScrollArea(ui->rightScrollArea);
connect(m_pages, SIGNAL(imagesReady()), this, SLOT(pagesReady()));
connect(m_pages, SIGNAL(startRender()), this, SLOT(onStartPageRender()));
connect(m_pages, SIGNAL(finishRender()), this, SLOT(onFinishPageRender()));
ui->rightScrollArea->installEventFilter(this);
// create and initialize the mu Document
m_document = new Document();
m_document->Initialize();
// connect actions to slots
// file menu
connect(ui->actionOpen, SIGNAL(triggered()), this, SLOT(openAction()));
connect(ui->actionClose, SIGNAL(triggered()), this, SLOT(closeAction()));
connect(ui->actionSave, SIGNAL(triggered()), this, SLOT(saveAction()));
connect(ui->actionPrint, SIGNAL(triggered()), this, SLOT(print()));
connect(ui->actionQuit, SIGNAL(triggered()), this, SLOT(quit()));
connect(ui->actionInfo, SIGNAL(triggered()), this, SLOT(fileInfo()));
connect(ui->actionGhostscript_Messages, SIGNAL(triggered()), this, SLOT(ghostscriptMessages()));
connect(ui->actionExract_Pages, SIGNAL(triggered()), this, SLOT(extractPages()));
connect(ui->actionSave_Selection, SIGNAL(triggered()), this, SLOT(saveSelection()));
// edit menu
connect(ui->actionCopy_Text, SIGNAL(triggered()), this, SLOT(copyText()));
connect(ui->actionDeselect_Text, SIGNAL(triggered()), this, SLOT(deselectText()));
connect(ui->actionSelect_All_Text, SIGNAL(triggered()), this, SLOT(selectAllText()));
connect(ui->actionFindDialog, SIGNAL(triggered()), this, SLOT(onFindDialog()));
connect(ui->actionStop_Finding, SIGNAL(triggered()), this, SLOT(stopFind()));
connect(ui->actionCopy_Page, SIGNAL(triggered()), this, SLOT(copyPage()));
// view menu
connect(ui->actionZoom_In, SIGNAL(triggered()), this, SLOT(zoomIn()));
connect(ui->actionZoom_Out, SIGNAL(triggered()), this, SLOT(zoomOut()));
connect(ui->actionZoom_Normal, SIGNAL(triggered()), this, SLOT(normalSize()));
connect(ui->actionFit_Page, SIGNAL(triggered()), this, SLOT(fitPage()));
connect(ui->actionFit_Width, SIGNAL(triggered()), this, SLOT(fitWidth()));
// proofing dialog
connect (ui->actionProof, SIGNAL(triggered()), this, SLOT(doProofDialog()));
// colors menu item
connect(ui->actionColors, SIGNAL(triggered()), this, SLOT(doColors()));
connect(ui->actionPage_Up, SIGNAL(triggered()), this, SLOT(pageUp()));
connect(ui->actionPage_Down, SIGNAL(triggered()), this, SLOT(pageDown()));
connect(ui->actionHome, SIGNAL(triggered()), this, SLOT(homeSlot()));
connect(ui->actionEnd, SIGNAL(triggered()), this, SLOT(endSlot()));
connect(ui->actionBack, SIGNAL(triggered()), this, SLOT(back()));
connect(ui->actionForward, SIGNAL(triggered()), this, SLOT(forward()));
connect(ui->actionThumbnails, SIGNAL(triggered()), this, SLOT(actionThumbnails()));
connect(ui->actionFull_Screen, SIGNAL(triggered()), this, SLOT(toggleFullScreen()));
connect(ui->actionAnnotations, SIGNAL(triggered()), this, SLOT(toggleAnnotations()));
ui->actionAnnotations->setChecked(true);
connect(ui->actionContents, SIGNAL(triggered()), this, SLOT(toggleContents()));
ui->actionContents->setChecked(false);
connect(ui->actionLinks, SIGNAL(triggered()), this, SLOT(toggleLinks()));
// options menu
connect(ui->actionOutput_Intents, SIGNAL(triggered()), this, SLOT(outputIntents()));
connect(ui->actionAAHigh, SIGNAL(triggered()), this, SLOT(setAA()));
connect(ui->actionAAMediumHigh, SIGNAL(triggered()), this, SLOT(setAA()));
connect(ui->actionAAMedium, SIGNAL(triggered()), this, SLOT(setAA()));
connect(ui->actionAALow, SIGNAL(triggered()), this, SLOT(setAA()));
connect(ui->actionAANone, SIGNAL(triggered()), this, SLOT(setAA()));
ui->actionAAHigh->setData(QVariant(AA_HIGH));
ui->actionAAMediumHigh->setData(QVariant(AA_MEDHIGH));
ui->actionAAMedium->setData(QVariant(AA_MED));
ui->actionAALow->setData(QVariant(AA_LOW));
ui->actionAANone->setData(QVariant(AA_NONE));
// help menu
connect(ui->actionAbout, SIGNAL(triggered()), this, SLOT(helpAbout()));
// connect(ui->actionGSView_Help, SIGNAL(triggered()), this, SLOT(help()));
connect(ui->actionUser_Guide, SIGNAL(triggered()), this, SLOT(help()));
// account for this window
countWindow(1);
// set initial size and placement
resize(QDesktopWidget().availableGeometry(this).size() * 0.90);
setInitialSizeAndPosition();
setupRecentActions();
connect(&m_startSearchTimer, SIGNAL(timeout()), this, SLOT(onFind2()));
}
void Window::setupRecentActions()
{
QAction* recentFileAction = 0;
for(int i = 0; i < QtUtil::maxRecentFiles; i++)
{
recentFileAction = new QAction(this);
recentFileAction->setVisible(false);
QObject::connect(recentFileAction, SIGNAL(triggered()),
this, SLOT(openRecent()));
m_recentFileActionList.append(recentFileAction);
}
QMenu *fileMenu = ui->menuFile;
QMenu *recentFilesMenu = fileMenu->addMenu(tr("Open Recent"));
for(int i = 0; i < QtUtil::maxRecentFiles; i++)
recentFilesMenu->addAction(m_recentFileActionList.at(i));
}
void Window::updateRecentActions()
{
// get the list
QStringList recentFilePaths = QtUtil::getRecentFileList();
// hide all the menus
for (int i = 0; i < QtUtil::maxRecentFiles; i++)
m_recentFileActionList.at(i)->setVisible(false);
// set up and show
for (int i = 0; i < recentFilePaths.length(); i++)
{
QString strippedName = QFileInfo(recentFilePaths.at(i)).fileName();
m_recentFileActionList.at(i)->setText(strippedName);
m_recentFileActionList.at(i)->setData(recentFilePaths.at(i));
m_recentFileActionList.at(i)->setVisible(true);
}
}
void Window::openRecent()
{
QAction *action = qobject_cast<QAction *>(sender());
if (action)
{
QString path = action->data().toString();
// we were, try and load it
Window *newWindow = new Window();
newWindow->show();
if (newWindow->OpenFile(path))
{
// success
return;
}
// error
newWindow->hide();
delete newWindow;
// remove from the recent list.
QtUtil::removeRecentFile(path);
updateRecentActions();
QMessageBox::information(NULL, tr(""), tr("Error opening %1").arg(path));
}
}
void Window::countWindow(int val)
{
m_numWindows += val;
if (m_numWindows<0)
m_numWindows = 0;
bool bEnable = true;
if (numWindows()<=0)
bEnable = false;
ui->actionSave->setEnabled(bEnable);
ui->actionClose->setEnabled(bEnable);
ui->actionPrint->setEnabled(bEnable);
ui->actionInfo->setEnabled(bEnable);
ui->actionExract_Pages->setEnabled(bEnable);
ui->actionSave_Selection->setEnabled(bEnable);
ui->actionCopy_Text->setEnabled(bEnable);
ui->actionDeselect_Text->setEnabled(bEnable);
ui->actionSelect_All_Text->setEnabled(bEnable);
ui->actionFindDialog->setEnabled(bEnable);
ui->actionCopy_Page->setEnabled(bEnable);
ui->actionZoom_In->setEnabled(bEnable);
ui->actionZoom_Out->setEnabled(bEnable);
ui->actionZoom_Normal->setEnabled(bEnable);
ui->actionFit_Page->setEnabled(bEnable);
ui->actionFit_Width->setEnabled(bEnable);
ui->actionPage_Up->setEnabled(bEnable);
ui->actionPage_Down->setEnabled(bEnable);
ui->actionHome->setEnabled(bEnable);
ui->actionEnd->setEnabled(bEnable);
ui->actionThumbnails->setEnabled(bEnable);
ui->actionFull_Screen->setEnabled(bEnable);
ui->actionAnnotations->setEnabled(bEnable);
ui->actionContents->setEnabled(bEnable);
ui->actionLinks->setEnabled(bEnable);
ui->actionOutput_Intents->setEnabled(bEnable);
ui->menuAntiAlias->setEnabled(bEnable);
}
void Window::setupToolbar()
{
// we do this in code, rather than relying on Qt designer, because
// we need to insert non-actions (widgets)
int fieldWidth;
ui->toolBar->addAction(ui->actionOpen);
ui->toolBar->addAction(ui->actionSave);
ui->toolBar->addAction(ui->actionPrint);
ui->toolBar->addSeparator();
ui->toolBar->addAction(ui->actionHome);
ui->toolBar->addAction(ui->actionPage_Up);
ui->toolBar->addAction(ui->actionPage_Down);
ui->toolBar->addAction(ui->actionEnd);
m_pageNumber = new QLineEdit();
fieldWidth = m_pageNumber->fontMetrics().charWidth("5",0)*5+10;
m_pageNumber->setMaximumWidth(fieldWidth);
m_pageNumber->setMinimumWidth(fieldWidth);
m_pageNumber->setAlignment(Qt::AlignRight);
connect ( m_pageNumber, SIGNAL(returnPressed()), SLOT(pageEditReturnPressed()));
m_totalPages = new QLabel();
QLabel *slash = new QLabel(); slash->setText(tr("/"));
ui->toolBar->insertWidget(NULL, m_pageNumber);
ui->toolBar->insertWidget(NULL, slash);
ui->toolBar->insertWidget(NULL, m_totalPages);
ui->toolBar->addSeparator();
ui->toolBar->addAction(ui->actionZoom_In);
ui->toolBar->addAction(ui->actionZoom_Out);
m_percentage = new QLineEdit();
fieldWidth = m_percentage->fontMetrics().charWidth("5",0)*4+10;
m_percentage->setMaximumWidth(fieldWidth);
m_percentage->setMinimumWidth(fieldWidth);
connect ( m_percentage, SIGNAL(returnPressed()), SLOT(percentageEditReturnPressed()));
QLabel *pct = new QLabel(); pct->setText(tr("%"));
ui->toolBar->insertWidget(NULL, m_percentage);
ui->toolBar->insertWidget(NULL, pct);
ui->toolBar->addAction(ui->actionZoom_Normal);
ui->toolBar->addAction(ui->actionFit_Page);
ui->toolBar->addAction(ui->actionFit_Width);
ui->toolBar->addAction(ui->actionFull_Screen);
ui->toolBar->addSeparator();
ui->toolBar->addAction(ui->actionThumbnails);
// ui->toolBar->addAction(ui->actionAnnotations); // hiding this unless we can find a better icon
ui->toolBar->addAction(ui->actionContents);
ui->toolBar->addAction(ui->actionLinks);
ui->toolBar->addAction(ui->actionProof);
// searching
ui->toolBar->addSeparator();
ui->toolBar->addAction(ui->actionFindDialog);
m_search = new QLineEdit();
fieldWidth = m_search->fontMetrics().averageCharWidth()*20;
m_search->setMaximumWidth(fieldWidth);
m_search->setMinimumWidth(fieldWidth);
ui->toolBar->insertWidget(NULL, m_search);
ui->toolBar->addAction(ui->actionFind_Previous);
ui->toolBar->addAction(ui->actionFind_Next);
ui->toolBar->widgetForAction(ui->actionFind_Previous)->setMinimumWidth(16);
ui->toolBar->widgetForAction(ui->actionFind_Previous)->setMaximumWidth(16);
ui->toolBar->widgetForAction(ui->actionFind_Next)->setMinimumWidth(16);
ui->toolBar->widgetForAction(ui->actionFind_Next)->setMaximumWidth(16);
m_searchLabel = new QLabel(); m_searchLabel->clear();
ui->toolBar->insertWidget(NULL, m_searchLabel);
connect ( m_search, SIGNAL(textChanged(const QString &)), SLOT(onFind()));
connect(ui->actionFind_Next, SIGNAL(triggered()), this, SLOT(findNext()));
connect(ui->actionFind_Previous, SIGNAL(triggered()), this, SLOT(findPrevious()));
}
Window::~Window()
{
}
void Window::back()
{
if (m_pageHistoryIndex > 0)
{
m_historyUpdateAllowed = false;
m_pageHistoryIndex--;
goToPage(m_pageHistory.at(m_pageHistoryIndex));
m_historyUpdateAllowed = true;
}
}
void Window::forward()
{
if (m_pageHistoryIndex < m_pageHistory.length()-1)
{
m_historyUpdateAllowed = false;
m_pageHistoryIndex++;
goToPage(m_pageHistory.at(m_pageHistoryIndex));
m_historyUpdateAllowed = true;
}
else
{
pageDown();
}
}
void Window::updatePageHistory(int nPage)
{
if (m_historyUpdateAllowed)
{
// if the current history page is the same, do nothing
if (m_pageHistoryIndex>=0 && m_pageHistoryIndex<=m_pageHistory.length()-1)
if (m_pageHistory.at(m_pageHistoryIndex) == nPage)
return;
// remove history items that are after the current pointer
int i = m_pageHistory.length()-1;
while (i>m_pageHistoryIndex)
{
m_pageHistory.removeAt(i);
i--;
}
// add the page and increment the pointer.
m_pageHistory.append(nPage);
m_pageHistoryIndex = m_pageHistory.length()-1;
// qDebug() << "new page = " << nPage << ", history length = " << m_pageHistory.length();
}
}
void Window::pageEditReturnPressed()
{
// user typed Enter while in the page number field.
// go to the page.
QString s = m_pageNumber->text();
if (s.length()>0)
{
bool ok;
int n = s.toInt(&ok);
if (ok)
{
if (n>=1 && n<=m_document->GetPageCount())
{
// edit field has a value, and it's an integer, and it's
// within limits. Go ahead and change the page.
goToPage(n-1);
return;
}
}
}
// something went wrong, so restore the correct value
m_pageNumber->setText(QString::number(m_currentPage+1));
}
void Window::percentageEditReturnPressed()
{
// user typed Enter while in the percentage field.
QString s = m_percentage->text();
if (s.length()>0)
{
bool ok;
int n = s.toInt(&ok);
if (ok)
{
double f = double(n)/100;
if ( f>=m_minScale && f<=m_maxScale )
{
m_scalePage = f;
m_pages->zoom (m_scalePage);
return;
}
}
}
// restore the value
m_percentage->setText(QString::number((int)(100*m_scalePage)));
}
void Window::keyPressEvent(QKeyEvent* event)
{
switch (event->key())
{
case Qt::Key_Home:
homeSlot();
break;
case Qt::Key_End:
endSlot();
break;
case Qt::Key_PageDown:
pageDown();
break;
case Qt::Key_PageUp:
pageUp();
break;
case Qt::Key_Escape:
exitFullScreen();
break;
case Qt::Key_Backspace:
back();
break;
default:
break;
}
}
bool Window::handlePassword()
{
if (!m_document->RequiresPassword())
return true;
// ask for password. This will loop until the user enters a correct
// password, or the user cancels.
bool pwdValid = false;
QString text;
while (!pwdValid)
{
bool ok;
text = QInputDialog::getText(this, tr(""), tr("Enter password:"), QLineEdit::Password,
QDir::home().dirName(), &ok);
if (ok && !text.isEmpty())
{
pwdValid = m_document->ApplyPassword(text.toStdString());
}
else
{
// user cancelled.
return false;
}
}
m_password = text; // save for later
return true;
}
bool Window::OpenFile (QString path)
{
QFileInfo fileInfo (path);
// set the file type and extension. Used by the File INfo
// dialog.
if (fileInfo.suffix().toLower() == QString("pdf") )
{
m_fileExtension = "PDF";
m_fileType = tr("Portable Document Format");
}
if (fileInfo.suffix().toLower() == QString("epub") )
{
m_fileExtension = "EPUB";
m_fileType = tr("Electronic Publishing");
}
else if (fileInfo.suffix().toLower() == QString("ps") )
{
m_fileExtension = "PS";
m_fileType = "PostScript";
}
else if (fileInfo.suffix().toLower() == QString("xps") )
{
m_fileExtension = "XPS";
m_fileType = "XPS";
}
else if (fileInfo.suffix().toLower() == QString("eps") )
{
m_fileExtension = "EPS";
m_fileType = tr("Encapsulated Postscript");
}
else if (fileInfo.suffix().toLower() == QString("cbz") )
{
m_fileExtension = "CBZ";
m_fileType = tr("Comic Book Archive");
}
else if (fileInfo.suffix().toLower() == QString("png") )
{
m_fileExtension = "PNG";
m_fileType = tr("Portable Network Graphics Image");
}
else if (fileInfo.suffix().toLower() == QString("jpg") )
{
m_fileExtension = "JPG";
m_fileType = tr("Joint Photographic Experts Group Image");
}
else
{
m_fileExtension = "UNKNOWN";
m_fileType = tr("Unknown");
}
// handle .PS and .EPS by running ghostscript first
if (fileInfo.suffix().toLower() == QString("ps") ||
fileInfo.suffix().toLower() == QString("eps") )
{
// put the result into the temp folder
QString newPath = QtUtil::getTempFolderPath() + fileInfo.fileName() + ".pdf";
// construct the command
QString command = "\"" + QtUtil::getGsPath() + "\"";
command += " -P- -dSAFER -q -P- -dNOPAUSE -dBATCH -sDEVICE=pdfwrite ";
command += "-sOutputFile=\"" + newPath + "\"";
command += " -c .setpdfwrite ";
command += "-f \"" + path + "\"";
MessagesDialog::addMessage(command+"\n\n");
// create a process to do it, and wait
m_gsProcess = new QProcess(this);
m_gsProcess->setProcessChannelMode(QProcess::MergedChannels);
connect (m_gsProcess, SIGNAL(readyReadStandardOutput()), this, SLOT(printOutput()));
m_gsProcess->start(command);
m_gsProcess->waitForFinished();
disconnect (m_gsProcess, SIGNAL(readyReadStandardOutput()), this, SLOT(printOutput()));
// now open the temp file.
return OpenFile2(newPath);
}
else
{
// open directly
return OpenFile2(path);
}
}
void Window::printOutput()
{
QByteArray byteArray = m_gsProcess->readAllStandardOutput();
QStringList strLines = QString(byteArray).split("\n");
foreach (QString line, strLines) {
MessagesDialog::addMessage(line+"\n");
}
}
bool Window::OpenFile2 (QString path)
{
// load a file by path
// open the doc
bool result = m_document->OpenFile(path.toStdString());
if (!result)
{
return false;
}
m_document->SetAA(8);
// set the window title
QFile f(path);
QFileInfo fileInfo(f.fileName());
QString filename(fileInfo.fileName());
this->setWindowTitle(filename);
m_path = path;
// ask for password if required
if (!handlePassword())
return false;
// update recently opened files list
QtUtil::addRecentFile(path);
updateRecentActions();
updateActions();
#ifdef _QT_MAC
qApp->processEvents();
#else
while (qApp->hasPendingEvents())
qApp->processEvents();
#endif
// set initial page number and count into the toolbar
int nPages = m_document->GetPageCount();
m_pageNumber->setText(QString::number(1));
m_totalPages->setText(QString::number(nPages));
// set initial percentage
m_percentage->setText(QString::number((int)(100*m_scalePage)));
// prepare thumbnails
m_thumbnails->setDocument(m_document);
// prepare contents
m_contents->setDocument(m_document);
// prepare pages
m_pages->setDocument(m_document);
m_pages->setScale(m_scalePage);
m_pages->buildImages();
// calculate an initial superScale
point_t pageSize;
m_document->GetPageSize(m_currentPage, 1.0, &pageSize);
QDesktopWidget desktop;
int swidth = desktop.screen()->width() *0.90 ;
double ratiow = swidth / pageSize.X;
m_superScale = ratiow * 0.90;
// if (ratioh<m_superScale)
// m_superScale = ratioh;
// QScreen *screen = QApplication::screens().at(0);
// qreal dpi = (qreal)screen->physicalDotsPerInchX();
// m_superScale = dpi / 72; // 72 determined empirically
// // adjust if we're too big
// point_t pageSize;
// m_document->GetPageSize(m_currentPage, m_superScale, &pageSize);
// if (pageSize.X > (m_pages->width()-m_scrollbarAllowance))
// m_superScale = m_superScale * (m_pages->width()-m_scrollbarAllowance) / pageSize.X;
// TODO: why does this engage the centering properly?
// m_superScale = 1.001;
normalSize();
updatePageHistory(0);
m_isOpen = true;
// handle proofing menu items
ui->actionProof->setVisible(!getIsProof());
ui->actionColors->setVisible(getIsProof());
return true;
}
void Window::setInitialSizeAndPosition()
{
// calculate size and center
QDesktopWidget desktop;
int screenWidth = desktop.screen()->width();
int screenHeight = desktop.screen()->height();
int width = screenWidth*0.90;
int height = screenHeight*0.90;
int top = screenHeight/10;
int left = screenWidth/10;
// add/subtract random amounts to left and top
int high = left+50;
int low = left-50;
left = qrand() % ((high + 1) - low) + low;
high = top+50;
low = top-50;
top = qrand() % ((high + 1) - low) + low;
// move it!
setGeometry(left, top, width, height);
}
void Window::openAction()
{
Window::open();
}
void Window::quit()
{
qApp->exit(0);
}
void Window::closeAction()
{
this->close();
}
void Window::saveAction()
{
// do this in another class
m_fileSave->run();
}
// static
void Window::open()
{
// get the last-visited directory. Default is desktop
QString lastDir = QtUtil::getLastOpenFileDir();
// create a dialog for choosing a file
QFileDialog dialog(qApp->activeWindow(), tr("Open File"),lastDir);
dialog.setAcceptMode(QFileDialog::AcceptOpen);
dialog.setOption(QFileDialog::DontUseNativeDialog, !USE_NATIVE_FILE_DIALOGS);
dialog.setFileMode(QFileDialog::ExistingFile);
dialog.setNameFilter(tr("Viewable Files (*.pdf *.xps *.cbz *.ps *.eps *.epub)"));
// get current window count
int windowCount = numWindows();
// create a window that will show the file.
Window *newWindow = new Window();
// remember the currently active window
QWidget *priorWindow = qApp->activeWindow();
while (true)
{
// show and run the dialog
dialog.show();
int result = dialog.exec();
// if the user cancelled, give up
if (result != QDialog::Accepted)
break;
// remember the last-visited directory
QtUtil::setLastOpenFileDir(dialog.directory().absolutePath());
// show the window
newWindow->show();
qApp->setActiveWindow(newWindow);
// hide the dialog
dialog.hide();
#ifdef _QT_MAC
qApp->processEvents();
#else
while (qApp->hasPendingEvents())
qApp->processEvents();
#endif
// attempt to load the file
if (newWindow->OpenFile(dialog.selectedFiles().first()))
{
// success
qApp->setActiveWindow(newWindow);
return;
}
newWindow->hide();
QMessageBox::critical(NULL, "", tr("Error opening file"));
// if this was the 2nd (or higher) open file,
// break out so we don't hit the dialog again.
if (numWindows() >= 2)
break;
}
// user gave up, so delete the window we created.
delete newWindow;
// restore prior active window
if (NULL != priorWindow)
qApp->setActiveWindow(priorWindow);
// if no windows are open, quit.
if (windowCount==0)
{
qApp->processEvents();
qApp->exit(0);
}
}
int Window::m_numWindows = 0;
void Window::print()
{
QApplication::restoreOverrideCursor();
qApp->processEvents();
Printer *p = new Printer();
p->setWindow(this);
p->print();
}
void Window::zoomIn()
{
ui->actionZoom_Normal->setChecked(false);
ui->actionFit_Page->setChecked(false);
ui->actionFit_Width->setChecked(false);
zoom(m_scalePage+m_zoomInc);
}
void Window::zoomOut()
{
ui->actionZoom_Normal->setChecked(false);
ui->actionFit_Page->setChecked(false);
ui->actionFit_Width->setChecked(false);
zoom(m_scalePage-m_zoomInc);
}
void Window::normalSize()
{
ui->actionZoom_Normal->setChecked(true);
ui->actionFit_Page->setChecked(false);
ui->actionFit_Width->setChecked(false);
zoom (1.0);
}
void Window::zoom (double newScale)
{
m_scalePage = newScale;
if (m_scalePage > m_maxScale)
m_scalePage = m_maxScale;
if (m_scalePage < m_minScale)
m_scalePage = m_minScale;
m_pages->zoom (m_scalePage*m_superScale);
m_percentage->setText(QString::number((int)(100*(m_scalePage+.001)))); // add a little bit for rounding
}
void Window::pageUp()
{
if (m_currentPage>0)
{
m_currentPage -= 1;
goToPage(m_currentPage);
}
}
void Window::pageDown()
{
int numPages = m_document->GetPageCount();
if (m_currentPage+1<numPages)
{
m_currentPage += 1;
goToPage(m_currentPage);
}
}
void Window::helpAbout()
{
AboutDialog *about = new AboutDialog(this);
about->show();
}
void Window::help()
{
// open a file
#ifdef _QT_MAC
QString path = QtUtil::getRealAppDirPath() + QString("../Resources/UserGuide.pdf");
#else
QString path = QtUtil::getRealAppDirPath() + QString("UserGuide.pdf");
#endif
// we were, try and load it
Window *newWindow = new Window();
newWindow->show();
if (newWindow->OpenFile(path))
{
// success
return;
}
// error
newWindow->hide();
delete newWindow;
// remove from the recent list.
QtUtil::removeRecentFile(path);
QMessageBox::information(NULL, tr(""), tr("Error opening %1").arg(path));
}
void Window::updateActions()
{
}
void Window::customEvent (QEvent *event)
{
if (event->type() == ImageClickedEvent::IMAGE_CLICKED_EVENT)
{
int nPage = static_cast<ImageClickedEvent *>(event)->getPageNumber();
goToPage (nPage);
return;
}
if (event->type() == LiveZoomEvent::LIVE_ZOOM_EVENT)
{
int command = static_cast<LiveZoomEvent *>(event)->getCommand();
double delta = static_cast<LiveZoomEvent *>(event)->getDelta();
if (command == 1)
startLiveZoom();
else if (command == 2)
doLiveZoom(delta);
else if (command == 3)
endLiveZoom();
return;
}
QMainWindow::customEvent(event);
}
void Window::thumbnailsReady()
{
// hilight the current page
m_thumbnails->hilightImage(m_currentPage);
m_thumbnails->goToPage(m_currentPage);
}
void Window::pagesReady()
{
}
void Window::goToPage(int nPage)
{
setCurrentPage(nPage);
m_pages->goToPage (nPage, true);
}
void Window::setCurrentPage(int nPage, bool updateHistory /* =true */)
{
m_currentPage = nPage;
m_thumbnails->hilightImage(nPage);
m_thumbnails->goToPage(nPage);
m_pageNumber->setText(QString::number(m_currentPage+1));
if (updateHistory)
updatePageHistory(m_currentPage);
}
void Window::toggleAnnotations()
{
if (m_showAnnotations)
{
m_showAnnotations = false;
m_pages->annot (m_showAnnotations);
if (ui->leftScrollArea->isVisible())
m_thumbnails->annot (m_showAnnotations);
}
else
{
m_showAnnotations = true;