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mainwidget.cpp
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mainwidget.cpp
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/*
License: GPL-2
An electronic filing cabinet: scan, print, stack, arrange
Copyright (C) 2009 Simon Glass, [email protected]
.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
X-Comment: On Debian GNU/Linux systems, the complete text of the GNU General
Public License can be found in the /usr/share/common-licenses/GPL file.
*/
#include <stdarg.h>
#include <stdlib.h>
#include "config.h"
#include <QDebug>
#include <QDialogButtonBox>
#include <QtGlobal>
#include <QShortcut>
#if QT_VERSION >= 0x050000
#include <QtPrintSupport/QPrintDialog>
#include <QtPrintSupport/QPrinter>
#else
#include <QPrintDialog>
#include <QPrinter>
#endif
#include "qapplication.h"
#include "qdatetime.h"
#include "qdevicesettings.h"
#include "qdir.h"
#include "qmessagebox.h"
#include "qpainter.h"
#include "qsanestatusmessage.h"
#include "qscandialog.h"
#include "qscanner.h"
#include "qscannersetupdlg.h"
#include "qtimer.h"
#include "qxmlconfig.h"
#include "previewwidget.h"
#include "desktopmodel.h"
#include "desktopview.h"
#include "desktopwidget.h"
#include "err.h"
#include "mainwidget.h"
#include "ui_mainwindow.h"
#include "desk.h"
#include "maxview.h"
#include "op.h"
#include "options.h"
#include "paperstack.h"
#include "pagewidget.h"
#include "printopt.h"
#include "pscan.h"
#include "resource.h"
#include "utils.h"
#include "ui_printopt.h"
Mainwidget *Mainwidget::_singleton = nullptr;
Mainwidget::Mainwidget (QWidget *parent, const char *name)
: QStackedWidget (parent)
{
setObjectName(name);
if (!xmlConfig)
new QXmlConfig();
xmlConfig->setVersion(VERSION);
xmlConfig->setFilePath(QDir::homePath()+
"/.maxview/maxview_config.xml");
QDir dir;
qRegisterMetaType<SANE_Status>("SANE_Status");
dir.mkdir (QDir::homePath()+ "/.maxview");
xmlConfig->setCreator("MaxView");
QScannerSetupDlg::initConfig ();
xmlConfig->readConfigFile();
_smooth = xmlConfig->boolValue ("DISPLAY_SMOOTH");
setMinimumSize (200, 200);
_desktop = new Desktopwidget (this);
_page = new Pagewidget (_desktop->getModelconv (), "mainwidget/", this);
_page->init ();
// _page->setSmoothing (_smooth);
_page->setSmoothing (false);
_scanner = 0;
_scanDialog = 0;
_pscan = 0;
_options = 0;
_scanning = false;
// _stack = 0;
addWidget (_desktop);
addWidget (_page);
_contents = _desktop->getModel ();
_view = _desktop->getView ();
connect (_desktop, SIGNAL (showPage (const QModelIndex &)),
this, SLOT (showPage (const QModelIndex &)));
connect (_page->_returnToDesktop, SIGNAL (triggered()), this, SLOT (showDesktop ()));
_watchButtons = false;
_buttonTimer = new QTimer (this);
connect (_buttonTimer, SIGNAL(timeout()), this, SLOT (checkButtons()));
_buttonTimer->start (500); // check buttons twice each second
_singleton = this;
}
Mainwidget *Mainwidget::singleton()
{
return _singleton;
}
Mainwidget::~Mainwidget ()
{
delete _desktop;
if (_scanner)
delete _scanner;
if (_scanDialog)
delete _scanDialog;
}
void Mainwidget::closing (void)
{
_desktop->closing ();
_page->closing ();
if (_pscan)
_pscan->closing ();
}
void Mainwidget::checkButtons (void)
{
int buttons;
if (!_watchButtons || !_scanner)
return;
buttons = _scanner->checkButtons ();
if (buttons > 0 && (buttons & 1)) // scan
scan ();
}
void Mainwidget::saveSettings (void)
{
if (_scanner)
{
QDeviceSettings ds(_scanner);
ds.saveDeviceSettings("Last settings");
}
}
bool Mainwidget::complain(err_info *err)
{
if (err)
QMessageBox::warning (0, "Maxview", err->errstr);
return err != nullptr;
}
void Mainwidget::showPage (const QModelIndex &index, bool delay_smoothing)
{
// TODO: Work out whether delay_smoothing is needed
//delay_smoothing = delay_smoothing;
UNUSED(delay_smoothing);
#if 0
if (!f->max)
{
err_info *err;
err = maxdesk->ensureMax (f);
if (err)
QMessageBox::warning (0, "File Unreadable",
err->errstr);
}
else
switch (max_get_type (f->max))
{
case FILET_max :
raiseWidget (1);
_page->showPage (maxdesk, f, delay_smoothing);
break;
case FILET_pdf :
default :
maxdesk->viewFile (f);
break;
}
#endif
setCurrentIndex(1);
// _page->showPage (index.model (), index, delay_smoothing);
_page->showPages (index.model (), index, 0, -1, 2);
}
void Mainwidget::showDesktop ()
{
if (currentIndex())
setCurrentIndex(0);
}
void Mainwidget::pageLeft (void)
{
if (currentWidget() == _desktop)
_desktop->pageLeft ();
else
_page->pageLeft ();
}
void Mainwidget::pageRight (void)
{
if (currentWidget () == _desktop)
_desktop->pageRight ();
else
_page->pageRight ();
}
void Mainwidget::stackLeft (void)
{
QModelIndex index;
_desktop->stackLeft ();
if (currentWidget () == _page && _desktop->getCurrentFile (index))
showPage (index, true);
}
void Mainwidget::stackRight (void)
{
QModelIndex index;
_desktop->stackRight ();
if (currentWidget () == _page && _desktop->getCurrentFile (index))
showPage (index, true);
}
bool Mainwidget::ensureScanner (void)
{
bool ok;
if (!_scanner)
{
QScannerSetupDlg ssd(_scanner, 0);
ok = ssd.setupLast ();
if (ok)
_scanner = ssd.scanner ();
else
{
ssd.show ();
ssd.exec ();
_scanner = ssd.scanner ();
if (!_scanner->openDevice ())
{
delete _scanner;
_scanner = 0;
}
}
if (_pscan)
_pscan->scannerChanged (_scanner);
if (_scanner)
{
connectScanner ();
// not supported by Fujitsu backend? Our code doesn't handle it either
//_scanner->setIOMode (SANE_TRUE);
}
else
{
QMessageBox::warning (0, "Scanner Problem", "Scanner not selected");
return false;
}
}
_watchButtons = true;
return true;
}
static QString getDefaultStackName (void)
{
return QString ("");
}
static QString getDefaultPageName (void)
{
return QDate::currentDate ().toString ("d_MMMM_yyyy_");
}
void Mainwidget::updatePscan ()
{
if (_pscan)
_pscan->checkEnabled (_scanning);
}
QModelIndex Mainwidget::getDirIndex(const QString& dir_path)
{
return _desktop->getDirIndex(dir_path);
}
bool Mainwidget::newDir(const QString& dir_path, QModelIndex& ind)
{
return _desktop->newDir(dir_path, ind);
}
void Mainwidget::selectDir(const QString& dir_path)
{
QModelIndex ind = _desktop->findDir(dir_path);
_desktop->selectDir(ind);
}
void Mainwidget::scanInto(QModelIndex target)
{
SANE_Status status;
SANE_Parameters parameters;
QString stack_name = getDefaultStackName ();
QString page_name = getDefaultPageName ();
// cannot support more than one scan job at a time (yet)
if (_scanning)
return;
if (!ensureScanner ())
return;
// check resolution, etc.
status = _scanner->getParameters(¶meters);
if (status != SANE_STATUS_GOOD)
{
QMessageBox::warning (0, "Scanner Problem", "Could not get parameters");
return;
}
_watchButtons = false;
// progress ("Starting...");
// progressSize (0);
// info ("");
// get stack/page names from _pscan if available
if (_pscan)
{
QString str;
_pscan->scanStarting();
str = _pscan->getStackName ();
if (!str.isEmpty ())
stack_name = str;
str = _pscan->getPageName ();
if (!str.isEmpty ())
page_name = str;
}
if (target != QModelIndex())
_desktop->selectDir(target);
Paperscan scan;
connect (&scan, SIGNAL (stackNew (const QString &)), this, SLOT (slotStackNew (const QString &)));
connect (&scan, SIGNAL (stackNewPage (const Filepage *, const QString &, const QString &)),
this, SLOT (slotStackNewPage (const Filepage *, const QString &, const QString &)));
connect (&scan, SIGNAL (stackConfirm (void)), this, SLOT (slotStackConfirm (void)));
connect (&scan, SIGNAL (stackCancel (void)), this, SLOT (slotStackCancel (void)));
connect (&scan, SIGNAL (scanComplete (SANE_Status, const QString &, const err_info *)),
this, SLOT (slotScanComplete (SANE_Status, const QString &, const err_info *)));
connect (&scan, SIGNAL (progress (const QString &)), this, SLOT (progress (const QString &)));
connect (&scan, SIGNAL (stackPageStarting (int, const PPage *)),
this, SLOT (slotStackPageStarting (int, const PPage *)));
connect (&scan, SIGNAL (stackPageProgress (const PPage *)),
this, SLOT (slotStackPageProgress (const PPage *)));
scan.setup (_scanner, stack_name, page_name);
scan.start ();
_scan = &scan;
_scanning = true;
_scan_cancelling = false;
updatePscan ();
while (_scanning)
/* note this will not allow the scanning thread to get events, but
at the moment it doesn't have an event loop anyway */
qApp->processEvents ();
_scan = 0;
// qDebug () << "scan complete";
_watchButtons = true;
updatePscan ();
}
void Mainwidget::scan(void)
{
scanInto(QModelIndex());
}
void Mainwidget::slotStackNew (const QString &stack_name)
{
err_info *err;
// qDebug () << "slotStackNew" << stack_name;
if (!_scan_cancelling)
{
err = _contents->beginScan (_view->rootIndexSource (), stack_name);
if (err)
_scan->cancelScan (err);
}
}
void Mainwidget::stopScan (bool cancel)
{
if (_scanning)
{
if (cancel)
{
_scan_cancelling = true;
_scan->cancelScan (err_make (ERRFN, ERR_scan_cancelled));
}
else
_scan->endScan ();
}
}
void Mainwidget::slotScanComplete (SANE_Status status, const QString &msg, const err_info *err)
{
_desktop->scanComplete ();
// qDebug () << "slotScanComplete" << status << msg << err;
// don't report end of documents if we have managed to scan some
if (status)
{
QSaneStatusMessage fred (status, this);
printf ("status = %d\n", status);
fred.exec ();
}
progress (msg);
if (err && err->errnum != ERR_scan_cancelled)
QMessageBox::warning (0, "Error", err->errstr);
_scanning = false;
}
void Mainwidget::slotStackNewPage (const Filepage *mp, const QString &coverageStr,
const QString &infostr)
{
err_info *err;
if (!_scan_cancelling)
{
// qDebug () << "slotStackNewPage";
if (!infostr.isEmpty ())
info (infostr);
err = _contents->addPageToScan (mp, coverageStr);
_scan->pageAdded (mp);
progressSize (_contents->getScanSize ());
if (err)
_scan->cancelScan (err);
}
}
void Mainwidget::slotStackConfirm (void)
{
// qDebug () << "slotStackConfirm";
if (!_scan_cancelling)
{
err_info *err = _contents->confirmScan ();
//FIXME: should we cancel in this case?
if (err)
_scan->cancelScan (err);
}
}
void Mainwidget::slotStackCancel (void)
{
/* the scan system has requested that we cancel the scan - this might be
in response to our request */
// qDebug () << "slotStackCancel";
err_info *err = _contents->cancelScan ();
if (err)
_scan->cancelScan (err);
}
void Mainwidget::progress (const QString &str)
{
// qDebug () << "progress" << str;
if (_pscan)
_pscan->progress (str.toLatin1 ().constData());
else
emit newContents (str);
}
void Mainwidget::slotStackPageStarting (int total, const PPage *page)
{
if (!_scan_cancelling)
{
_contents->pageStarting (*_scan, page);
_progressTotal = total;
}
}
void Mainwidget::info (const QString &str)
{
if (_pscan)
_pscan->info (str.toLatin1 ().constData());
}
void Mainwidget::slotStackPageProgress (const PPage *page)
{
if (!_scan_cancelling)
{
const char *data;
int size;
_contents->pageProgress (*_scan, page);
if (_pscan && _scan->getData (page, data, size))
_pscan->progress (size * 100 / _progressTotal);
}
}
void Mainwidget::progressSize (int size)
{
if (_pscan)
{
char str [30];
util_bytes_to_user (str, size);
_pscan->progressSize (str);
}
}
void Mainwidget::updateScanDialog (void)
{
QScanner::format_t format;
// set up JPEG parameter
format = _scanDialog->getFormat ();
_scanDialog->setFormat (format, xmlConfig->boolValue ("SCAN_USE_JPEG"));
}
void Mainwidget::pscan (void)
{
if (!_pscan)
{
_pscan = new Pscan (this, "pscan", false, Qt::WindowStaysOnTopHint);
_pscan->setMainwidget (this);
updatePscan ();
}
if (!ensureScanner ())
return;
_pscan->scannerChanged (_scanner);
setupScanDialog ();
_pscan->show ();
}
void Mainwidget::options (void)
{
if (!_options)
{
_options = new Options (0, 0);
_options->setMainwidget (this);
}
_options->exec ();
// tell the scan dialog about it, if open
if (_scanDialog)
updateScanDialog ();
}
void Mainwidget::setupScanDialog (void)
{
_scanDialog = new QScanDialog (_scanner, 0);
connect (_scanDialog, SIGNAL (closed ()), this, SLOT (scanDialogClosed ()));
connect (_scanDialog, SIGNAL (signalPendingDone ()), this, SLOT (slotPendingDone ()));
connect (_scanner, SIGNAL (signalScanDone()),
_scanDialog, SLOT (slotDoPendingChanges()));
connect (_scanDialog, SIGNAL (warning (QString&)), this, SLOT (slotWarning (QString &)));
_preview = _scanDialog->getPreview ();
_pscan->setPreviewWidget (_preview);
_pscan->setScanDialog (_scanDialog);
updateScanDialog ();
}
void Mainwidget::setMainwindow(Mainwindow *mainwindow)
{
_mainwindow = mainwindow;
}
void Mainwidget::slotWarning (QString &str)
{
if (_pscan)
_pscan->warning (str);
}
void Mainwidget::slotPendingDone(void)
{
// printf ("reload\n");
if (_pscan)
_pscan->pendingDone ();
}
void Mainwidget::slotReloadOptions(void)
{
// printf ("reload\n");
if (_pscan)
_pscan->scannerChanged (_scanner);
}
void Mainwidget::slotSetOption (int)
{
// printf ("change %d\n", num);
if (_pscan)
_pscan->scannerChanged (_scanner);
}
void Mainwidget::connectScanner (void)
{
connect (_scanner, SIGNAL (signalReloadOptions()),
this, SLOT (slotReloadOptions()));
connect (_scanner, SIGNAL (signalSetOption(int)),
this, SLOT (slotSetOption(int)));
}
void Mainwidget::selectScanner (void)
{
bool ok;
_watchButtons = false;
if (_scanDialog)
{
delete _scanDialog;
_scanDialog = 0;
_pscan->setScanDialog (_scanDialog);
}
/*
if (_pscan)
{
delete _pscan;
_pscan = 0;
}
*/
QScannerSetupDlg ssd(_scanner, 0);
/* TODO: tidy up this wierdness - it should be possible to cancel but
at present this casues a crash */
_scanner = 0;
ssd.show ();
ok = ssd.exec () == QDialog::Accepted;
if (ok)
_scanner = ssd.scanner ();
if (_scanner && _scanner->isOpen ())
{
connectScanner ();
if (_pscan)
_pscan->scannerChanged (_scanner);
setupScanDialog ();
_watchButtons = true;
}
else
{
if (_pscan)
delete _pscan;
_pscan = 0;
ssd.uninitScanner();
_scanner = 0;
}
}
void Mainwidget::scannerSettings (void)
{
if (!ensureScanner ())
return;
if (_scanDialog)
_scanDialog->show ();
// sd.exec ();
}
void Mainwidget::scanDialogClosed (void)
{
// delete _scanDialog;
// _scanDialog = 0;
_scanDialog->hide ();
// printf ("closed\n");
}
#if 0
bool Mainwidget::selectedFile (Desk *&maxdesk, file_info *&file)
{
return visibleWidget () == _desktop
? _desktop->getCurrentFile (maxdesk, file)
: _page->getCurrentFile (maxdesk, file);
}
#endif
void Mainwidget::drawTextOnWhite (int flags, QString text, int linenum, bool do_bold)
{
QString part1, part2;
QFont font = _painter->font ();
QFont bfont = font;
bfont.setBold (!font.bold ());
QFontMetrics fm (font);
QFontMetrics fmb (bfont);
part2 = text;
if (do_bold)
{
QStringList list = text.split ('\n');
if (list.size () > 1)
{
part1 = list [0] + ": ";
part2 = list [1];
}
}
// QFontMetrics fmb = _painter->fontMetrics ();
int ypos = _printable.bottom() - (linenum + 1) * fm.height(); //_painter->fontMetrics().descent() - 1;
QRect rect = QRect (_printable.left (), ypos,
_printable.width (), fm.height());
#if QT_VERSION >= 0x050b00
int width1 = fmb.horizontalAdvance (part1);
int width = width1 + fm.horizontalAdvance (part2);
#else
int width1 = fmb.width (part1);
int width = width1 + fm.width (part2);
#endif
int xpos = rect.left ();
if (flags == Qt::AlignHCenter)
xpos = (rect.right () - width) / 2;
else if (flags == Qt::AlignRight)
xpos = rect.right () - width;
QRect bound = QRect (xpos, rect.top (), width, rect.height ());
bound.adjust (-fm.averageCharWidth (), 0, fm.averageCharWidth (), 0);
_painter->fillRect (bound, _opt->_fillColour);
_painter->setPen (QColor (_opt->_textColour));
_painter->setFont (font);
if (!part1.isEmpty ())
{
_painter->setFont (bfont);
_painter->drawText (xpos, _printable.bottom() - fm.descent() - 1 - linenum * fmb.height (), part1);
_painter->setFont (font);
xpos += width1;
}
_painter->drawText (xpos, _printable.bottom() - fm.descent() - 1 - linenum * fm.height (), part2);
}
err_info *Mainwidget::printPage (int seq, QModelIndex &ind,
int pnum, int numpages)
{
err_info *e = 0;
QImage image;
bool print;
QSize size, trueSize;
int bpp;
bool is_blank = pnum == numpages;
print = seq >= _from_page;
if (_to_page != -1 && seq > _to_page)
print = false;
// check printing of odd/even pages
if (!_opt->_printOdd && (seq & 1))
print = false;
if (!_opt->_printEven && !(seq & 1))
print = false;
if (!print)
return NULL; // skip this page
// sprintf (msg, "Printing page %d of %d", page, file->pagecount);
// emit newContents (msg);
if (_new_page)
{
_printer->newPage();
_new_page = false;
}
if (!is_blank)
e = _contents->getImage (ind, pnum, false,
image, size, trueSize, bpp);
// _painter->fillRect (_printable, QBrush (Qt::blue)); for debug
if (!e)
{
_painter->save ();
double xscale = (double)_body.width () / size.width ();
double yscale = (double)_body.height () / size.height ();
double scale = qMin (xscale, yscale);
scale = qMin (scale, _opt->_expandFit ? 8 : 1.0);
_painter->scale (scale, scale);
// printf ("scale %d x %d: %1.2lf,%1.2lf: %1.2lf\n", size.x (), size.y (),
// xscale, yscale, scale);
if (!image.isNull ())
_painter->drawImage (0, 0, image);
_painter->restore ();
}
// print page numbers
// ypos -= bottom;
// draw a white background for the text
// QRect textrect = QRect (_printable.left(),
// _printable.bottom() - _painter->fontMetrics().height() - 1,
// _printable.width (), _painter->fontMetrics().height() + 1);
// QRect newrect = textrect;
// newrect.translate (0, -100);
// we could fill the whole line, but now we just fill behind each item of text
// if (!is_blank
// && (_opt->printNumbers || _opt->printNames || _opt->printSeq || e))
// _painter->fillRect (textrect, QBrush (QColor (240, 240, 240)));
// painter->fillRect (newrect, QBrush (Qt::green));
QString info = _contents->imageInfo (ind, pnum, false);
QString timestamp = _contents->imageTimestamp (ind, pnum);
QString left, mid, right;
if (!is_blank && _opt->_printNumbers)
right = QString ("Page %1 of %2").arg (pnum + 1).arg (numpages);
if (!is_blank && _opt->_printNames)
{
QString title = ind.model ()->data (ind, Qt::DisplayRole).toString ();
QString page = ind.model ()->data (ind, Desktopmodel::Role_pagename).toString ();
mid = QString ("%1\n%2").arg (title).arg (page);
}
if (is_blank || _opt->_printSeq || e)
{
if (_opt->_printSeq)
left = QString ("Seq %1 of %2").arg (seq + 1).arg (_pagecount);
if (is_blank)
left = " (this page intentionally blank)";
if (e)
left += QString (", ERROR: %1").arg (e->errstr);
e = NULL;
}
// if we have info, try to fit it somewhere
if (!is_blank && _opt->_printImageInfo)
{
bool clear = true;
if (left.isEmpty ())
left = info;
else if (mid.isEmpty ())
mid = info;
else if (right.isEmpty ())
right = info;
// no luck, will have to place it elsewhere
else
clear = false;
if (clear)
info = "";
}
// same with timestamp
if (!is_blank && _opt->_printTimestamp)
{
bool clear = true;
if (left.isEmpty ())
left = timestamp;
else if (mid.isEmpty ())
mid = timestamp;
else if (right.isEmpty ())
right = timestamp;
// no luck, will have to place it elsewhere
else
clear = false;
if (clear)
timestamp = "";
}
if (!right.isEmpty ())
drawTextOnWhite (Qt::AlignRight, right);
if (!mid.isEmpty ())
drawTextOnWhite (Qt::AlignHCenter, mid, 0, true);
if (!left.isEmpty ())
drawTextOnWhite (Qt::AlignLeft, left);
if (!is_blank && !info.isEmpty ())
drawTextOnWhite (Qt::AlignLeft, info, 1);
if (!is_blank && !timestamp.isEmpty ())
drawTextOnWhite (Qt::AlignHCenter, timestamp, 1);
_new_page = true;
return NULL;
}
void Mainwidget::savePrintSettings (void)
{
_saved = true;
_dialog->accept ();
}
void Mainwidget::openPrintopt (void)
{
QDialog diag;
// _opt->reparent (&diag);
QVBoxLayout *vbox = new QVBoxLayout (&diag);
QDialogButtonBox *buttons = new QDialogButtonBox (QDialogButtonBox::Ok |
QDialogButtonBox::Cancel);
connect(buttons, SIGNAL(accepted()), &diag, SLOT(accept()));
connect(buttons, SIGNAL(rejected()), &diag, SLOT(reject()));
vbox->addWidget (_opt);
vbox->addWidget (buttons);
diag.setLayout (vbox);
diag.resize (vbox->minimumSize ());
if (!diag.exec ())
_opt->reset (); // load options again if user cancels
// set the parent back, otherwise diag will destroy _opt when it is deleted
_opt->setParent (this);
}
void Mainwidget::print (void)
{
Desktopview *view = _desktop->getView ();
// get source model indexes, which is what we need
QModelIndexList list = view->getSelectedList (true, true);
// Desk *maxdesk;
// file_info *file = 0;
int pagenum = -1;
QModelIndex ind;
// if we're on page view, just print the current page of the current stack
if (currentWidget () != _desktop)
{
if (_page->getCurrentIndex (ind, true))
{