/* Copyright (C) 2005 J.F.Dockes
* 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.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "autoconfig.h"
#include <list>
#include <utility>
#include <qmessagebox.h>
#include <qthread.h>
#include <qvariant.h>
#include <qpushbutton.h>
#include <qtabwidget.h>
#include <qprinter.h>
#include <qprintdialog.h>
#include <qscrollbar.h>
#include <qmenu.h>
#include <qtextedit.h>
#include <qtextbrowser.h>
#include <qprogressdialog.h>
#include <qevent.h>
#include <qlabel.h>
#include <qlineedit.h>
#include <qcheckbox.h>
#include <qlayout.h>
#include <qtooltip.h>
#include <qwhatsthis.h>
#include <qapplication.h>
#include <qclipboard.h>
#include <qimage.h>
#include <qurl.h>
#include <QShortcut>
#include <QTimer>
#include "log.h"
#include "pathut.h"
#include "internfile.h"
#include "recoll.h"
#include "smallut.h"
#include "chrono.h"
#include "wipedir.h"
#include "cancelcheck.h"
#include "preview_w.h"
#include "guiutils.h"
#include "docseqhist.h"
#include "rclhelp.h"
#include "preview_load.h"
#include "preview_plaintorich.h"
#include "rclmain_w.h"
static const QKeySequence closeKS(Qt::Key_Escape);
static const QKeySequence nextDocInTabKS(Qt::ShiftModifier+Qt::Key_Down);
static const QKeySequence prevDocInTabKS(Qt::ShiftModifier+Qt::Key_Up);
static const QKeySequence closeTabKS(Qt::ControlModifier+Qt::Key_W);
static const QKeySequence printTabKS(Qt::ControlModifier+Qt::Key_P);
void Preview::init()
{
LOGDEB("Preview::init\n");
// Create the first tab (the tab widget is created with one
// initial tab for ease of use in designer, we remove it).
addEditorTab();
pvTab->removeTab(0);
for (const auto& ugroup : m_hData.ugroups) {
QString s;
for (const auto& elt : ugroup) {
s.append(u8s2qs(elt));
}
s = s.trimmed();
searchTextCMB->addItem(s);
}
searchTextCMB->setCompleter(0);
if (prefs.pvwidth > 100) {
resize(prefs.pvwidth, prefs.pvheight);
} else {
resize(QSize(640, 480).expandedTo(minimumSizeHint()));
}
(void)new HelpClient(this);
HelpClient::installMap((const char *)objectName().toUtf8(),
"RCL.SEARCH.GUI.PREVIEW");
// signals and slots connections
connect(searchTextCMB, SIGNAL(activated(int)),
this, SLOT(searchTextFromIndex(int)));
connect(searchTextCMB, SIGNAL(editTextChanged(const QString&)),
this, SLOT(searchTextChanged(const QString&)));
connect(nextPB, SIGNAL(clicked()), this, SLOT(nextPressed()));
connect(prevPB, SIGNAL(clicked()), this, SLOT(prevPressed()));
connect(clearPB, SIGNAL(clicked()), searchTextCMB, SLOT(clearEditText()));
connect(pvTab, SIGNAL(currentChanged(int)), this, SLOT(currentChanged(int)));
connect(pvTab, SIGNAL(tabCloseRequested(int)), this, SLOT(closeTab(int)));
connect(new QShortcut(closeKS, this), SIGNAL (activated()),
this, SLOT (close()));
connect(new QShortcut(nextDocInTabKS, this), SIGNAL (activated()),
this, SLOT (emitShowNext()));
connect(new QShortcut(prevDocInTabKS, this), SIGNAL (activated()),
this, SLOT (emitShowPrev()));
connect(new QShortcut(closeTabKS, this), SIGNAL (activated()),
this, SLOT (closeCurrentTab()));
connect(new QShortcut(printTabKS, this), SIGNAL (activated()),
this, SIGNAL (printCurrentPreviewRequest()));
currentChanged(pvTab->currentIndex());
}
void Preview::emitShowNext()
{
if (m_loading)
return;
PreviewTextEdit *edit = currentEditor();
if (edit) {
emit(showNext(this, m_searchId, edit->m_docnum));
}
}
void Preview::emitShowPrev()
{
if (m_loading)
return;
PreviewTextEdit *edit = currentEditor();
if (edit) {
emit(showPrev(this, m_searchId, edit->m_docnum));
}
}
void Preview::closeEvent(QCloseEvent *e)
{
LOGDEB("Preview::closeEvent. m_loading " << m_loading << "\n");
if (m_loading) {
CancelCheck::instance().setCancel();
e->ignore();
return;
}
prefs.pvwidth = width();
prefs.pvheight = height();
/* Release all temporary files (but maybe none is actually set) */
for (int i = 0; i < pvTab->count(); i++) {
PreviewTextEdit *edit = editor(i);
if (edit) {
forgetTempFile(edit->m_tmpfilename);
}
}
emit previewExposed(this, m_searchId, -1);
emit previewClosed(this);
QWidget::closeEvent(e);
}
extern const char *eventTypeToStr(int tp);
bool Preview::eventFilter(QObject *target, QEvent *event)
{
if (event->type() != QEvent::KeyPress) {
#if 0
LOGDEB("Preview::eventFilter(): " << eventTypeToStr(event->type()) <<
"\n");
if (event->type() == QEvent::MouseButtonRelease) {
QMouseEvent *mev = (QMouseEvent *)event;
LOGDEB("Mouse: GlobalY " << mev->globalY() << " y " << mev->y() <<
"\n");
}
#endif
return false;
}
PreviewTextEdit *edit = currentEditor();
QKeyEvent *keyEvent = (QKeyEvent *)event;
if (m_dynSearchActive) {
if (keyEvent->key() == Qt::Key_F3) {
LOGDEB2("Preview::eventFilter: got F3\n");
doSearch(searchTextCMB->currentText(), true,
(keyEvent->modifiers() & Qt::ShiftModifier) != 0);
return true;
}
if (target != searchTextCMB)
return QApplication::sendEvent(searchTextCMB, event);
} else {
if (edit &&
(target == edit || target == edit->viewport())) {
if (keyEvent->key() == Qt::Key_Slash ||
(keyEvent->key() == Qt::Key_F &&
(keyEvent->modifiers() & Qt::ControlModifier))) {
LOGDEB2("Preview::eventFilter: got / or C-F\n");
searchTextCMB->setFocus();
m_dynSearchActive = true;
return true;
} else if (keyEvent->key() == Qt::Key_Space) {
LOGDEB2("Preview::eventFilter: got Space\n");
int value = edit->verticalScrollBar()->value();
value += edit->verticalScrollBar()->pageStep();
edit->verticalScrollBar()->setValue(value);
return true;
} else if (keyEvent->key() == Qt::Key_Backspace) {
LOGDEB2("Preview::eventFilter: got Backspace\n");
int value = edit->verticalScrollBar()->value();
value -= edit->verticalScrollBar()->pageStep();
edit->verticalScrollBar()->setValue(value);
return true;
}
}
}
return false;
}
void Preview::searchTextChanged(const QString & text)
{
LOGDEB1("Search line text changed. text: '" << qs2utf8s(text) << "'\n");
m_searchTextFromIndex = -1;
if (text.isEmpty()) {
m_dynSearchActive = false;
clearPB->setEnabled(false);
} else {
m_dynSearchActive = true;
clearPB->setEnabled(true);
doSearch(text, false, false);
}
}
void Preview::searchTextFromIndex(int idx)
{
LOGDEB1("search line from index " << idx << "\n");
m_searchTextFromIndex = idx;
}
// Save current document to file
void Preview::emitSaveDocToFile()
{
PreviewTextEdit *ce = currentEditor();
if (ce && !ce->m_dbdoc.url.empty()) {
emit saveDocToFile(ce->m_dbdoc);
}
}
// Perform text search. If next is true, we look for the next match of the
// current search, trying to advance and possibly wrapping around. If next is
// false, the search string has been modified, we search for the new string,
// starting from the current position
void Preview::doSearch(const QString &_text, bool next, bool reverse,
bool wordOnly)
{
LOGDEB("Preview::doSearch: text [" << qs2utf8s(_text) << "] idx " <<
m_searchTextFromIndex << " next " << next << " rev " << reverse <<
" word " << wordOnly << "\n");
QString text = _text;
bool matchCase = casematchCB->isChecked();
PreviewTextEdit *edit = currentEditor();
if (edit == 0) {
// ??
return;
}
if (text.isEmpty() || m_searchTextFromIndex != -1) {
if (!edit->m_plaintorich->haveAnchors()) {
LOGDEB("NO ANCHORS\n");
return;
}
// The combobox indices are equal to the search ugroup indices
// in hldata, that's how we built the list.
if (reverse) {
edit->m_plaintorich->prevAnchorNum(m_searchTextFromIndex);
} else {
edit->m_plaintorich->nextAnchorNum(m_searchTextFromIndex);
}
QString aname = edit->m_plaintorich->curAnchorName();
LOGDEB("Calling scrollToAnchor(" << qs2utf8s(aname) << ")\n");
edit->scrollToAnchor(aname);
// Position the cursor approximately at the anchor (top of
// viewport) so that searches start from here
QTextCursor cursor = edit->cursorForPosition(QPoint(0, 0));
edit->setTextCursor(cursor);
return;
}
// If next is false, the user added characters to the current
// search string. We need to reset the cursor position to the
// start of the previous match, else incremental search is going
// to look for the next occurrence instead of trying to lenghten
// the current match
if (!next) {
QTextCursor cursor = edit->textCursor();
cursor.setPosition(cursor.anchor(), QTextCursor::KeepAnchor);
edit->setTextCursor(cursor);
}
Chrono chron;
LOGDEB("Preview::doSearch: first find call\n");
QTextDocument::FindFlags flags = 0;
if (reverse)
flags |= QTextDocument::FindBackward;
if (wordOnly)
flags |= QTextDocument::FindWholeWords;
if (matchCase)
flags |= QTextDocument::FindCaseSensitively;
bool found = edit->find(text, flags);
LOGDEB("Preview::doSearch: first find call return: found " << found <<
" " << chron.secs() << " S\n");
// If not found, try to wrap around.
if (!found) {
LOGDEB("Preview::doSearch: wrapping around\n");
if (reverse) {
edit->moveCursor (QTextCursor::End);
} else {
edit->moveCursor (QTextCursor::Start);
}
LOGDEB("Preview::doSearch: 2nd find call\n");
chron.restart();
found = edit->find(text, flags);
LOGDEB("Preview::doSearch: 2nd find call return found " << found <<
" " << chron.secs() << " S\n");
}
if (found) {
m_canBeep = true;
} else {
if (m_canBeep)
QApplication::beep();
m_canBeep = false;
}
LOGDEB("Preview::doSearch: return\n");
}
void Preview::nextPressed()
{
LOGDEB2("Preview::nextPressed\n");
doSearch(searchTextCMB->currentText(), true, false);
}
void Preview::prevPressed()
{
LOGDEB2("Preview::prevPressed\n");
doSearch(searchTextCMB->currentText(), true, true);
}
// Called when user clicks on tab
void Preview::currentChanged(int index)
{
LOGDEB2("PreviewTextEdit::currentChanged\n");
PreviewTextEdit *edit = editor(index);
LOGDEB1("Preview::currentChanged(). Editor: " << edit << "\n");
if (edit == 0) {
LOGERR("Editor child not found\n");
return;
}
edit->setFocus();
// Disconnect the print signal and reconnect it to the current editor
LOGDEB1("Disconnecting reconnecting print signal\n");
disconnect(this, SIGNAL(printCurrentPreviewRequest()), 0, 0);
connect(this, SIGNAL(printCurrentPreviewRequest()), edit, SLOT(print()));
edit->installEventFilter(this);
edit->viewport()->installEventFilter(this);
searchTextCMB->installEventFilter(this);
emit(previewExposed(this, m_searchId, edit->m_docnum));
}
void Preview::closeCurrentTab()
{
LOGDEB1("Preview::closeCurrentTab: m_loading " << m_loading << "\n");
if (m_loading) {
CancelCheck::instance().setCancel();
return;
}
closeTab(pvTab->currentIndex());
}
void Preview::closeTab(int index)
{
LOGDEB1("Preview::closeTab: m_loading " << m_loading << "\n");
if (m_loading) {
CancelCheck::instance().setCancel();
return;
}
PreviewTextEdit *edit = editor(index);
if (edit)
forgetTempFile(edit->m_tmpfilename);
if (pvTab->count() > 1) {
pvTab->removeTab(index);
} else {
close();
}
}
PreviewTextEdit *Preview::editor(int index)
{
return dynamic_cast<PreviewTextEdit*>(pvTab->widget(index));
}
PreviewTextEdit *Preview::currentEditor()
{
LOGDEB2("Preview::currentEditor()\n");
return editor(pvTab->currentIndex());
}
PreviewTextEdit *Preview::addEditorTab()
{
LOGDEB1("PreviewTextEdit::addEditorTab()\n");
PreviewTextEdit *editor = new PreviewTextEdit(pvTab, "pvEdit", this);
editor->setReadOnly(true);
editor->setUndoRedoEnabled(false );
pvTab->addTab(editor, "Tab");
pvTab->setCurrentIndex(pvTab->count() - 1);
return editor;
}
void Preview::setCurTabProps(const Rcl::Doc &doc, int docnum)
{
LOGDEB1("Preview::setCurTabProps\n");
QString title;
string ctitle;
if (doc.getmeta(Rcl::Doc::keytt, &ctitle) && !ctitle.empty()) {
title = QString::fromUtf8(ctitle.c_str(), ctitle.length());
} else {
title = QString::fromLocal8Bit(path_getsimple(doc.url).c_str());
}
if (title.length() > 20) {
title = title.left(10) + "..." + title.right(10);
}
int curidx = pvTab->currentIndex();
pvTab->setTabText(curidx, title);
char datebuf[100];
datebuf[0] = 0;
if (!doc.fmtime.empty() || !doc.dmtime.empty()) {
time_t mtime = doc.dmtime.empty() ?
atoll(doc.fmtime.c_str()) : atoll(doc.dmtime.c_str());
struct tm *tm = localtime(&mtime);
strftime(datebuf, 99, "%Y-%m-%d %H:%M:%S", tm);
}
LOGDEB("Doc.url: [" << doc.url << "]\n");
string url;
printableUrl(theconfig->getDefCharset(), doc.url, url);
string tiptxt = url + string("\n");
tiptxt += doc.mimetype + " " + string(datebuf) + "\n";
if (!ctitle.empty())
tiptxt += ctitle + "\n";
pvTab->setTabToolTip(curidx,
QString::fromUtf8(tiptxt.c_str(), tiptxt.length()));
PreviewTextEdit *e = currentEditor();
if (e) {
e->m_url = doc.url;
e->m_ipath = doc.ipath;
e->m_docnum = docnum;
}
}
bool Preview::makeDocCurrent(const Rcl::Doc& doc, int docnum, bool sametab)
{
LOGDEB("Preview::makeDocCurrent: " << doc.url << "\n");
if (m_loading) {
LOGERR("Already loading\n");
return false;
}
/* Check if we already have this page */
for (int i = 0; i < pvTab->count(); i++) {
PreviewTextEdit *edit = editor(i);
if (edit && !edit->m_url.compare(doc.url) &&
!edit->m_ipath.compare(doc.ipath)) {
pvTab->setCurrentIndex(i);
return true;
}
}
// if just created the first tab was created during init
if (!sametab && !m_justCreated && !addEditorTab()) {
return false;
}
m_justCreated = false;
if (!loadDocInCurrentTab(doc, docnum)) {
closeCurrentTab();
return false;
}
raise();
return true;
}
void Preview::togglePlainPre()
{
switch (prefs.previewPlainPre) {
case PrefsPack::PP_BR:
prefs.previewPlainPre = PrefsPack::PP_PRE;
break;
case PrefsPack::PP_PRE:
prefs.previewPlainPre = PrefsPack::PP_BR;
break;
case PrefsPack::PP_PREWRAP:
default:
prefs.previewPlainPre = PrefsPack::PP_PRE;
break;
}
PreviewTextEdit *editor = currentEditor();
if (editor)
loadDocInCurrentTab(editor->m_dbdoc, editor->m_docnum);
}
void Preview::emitWordSelect(QString word)
{
emit(wordSelect(word));
}
/*
Code for loading a file into an editor window. The operations that
we call have no provision to indicate progression, and it would be
complicated or impossible to modify them to do so (Ie: for external
format converters).
We implement a complicated and ugly mechanism based on threads to indicate
to the user that the app is doing things: lengthy operations are done in
threads and we update a progress indicator while they proceed (but we have
no estimate of their total duration).
It might be possible, but complicated (need modifications in
handler) to implement a kind of bucket brigade, to have the
beginning of the text displayed faster
*/
// Insert into editor by chunks so that the top becomes visible
// earlier for big texts. This provokes some artifacts (adds empty line),
// so we can't set it too low.
#define CHUNKL 500*1000
// Make sure we don't ever reenter loadDocInCurrentTab: note that I
// don't think it's actually possible, this must be the result of a
// misguided debug session.
class LoadGuard {
bool *m_bp;
public:
LoadGuard(bool *bp) {m_bp = bp ; *m_bp = true;}
~LoadGuard() {*m_bp = false; CancelCheck::instance().setCancel(false);}
};
bool Preview::loadDocInCurrentTab(const Rcl::Doc &idoc, int docnum)
{
LOGDEB1("Preview::loadDocInCurrentTab()\n");
LoadGuard guard(&m_loading);
CancelCheck::instance().setCancel(false);
setCurTabProps(idoc, docnum);
QString msg = QString("Loading: %1 (size %2 bytes)")
.arg(QString::fromLocal8Bit(idoc.url.c_str()))
.arg(QString::fromUtf8(idoc.fbytes.c_str()));
QProgressDialog progress(msg, tr("Cancel"), 0, 0, this);
progress.setMinimumDuration(2000);
QEventLoop loop;
QTimer tT;
tT.setSingleShot(true);
connect(&tT, SIGNAL(timeout()), &loop, SLOT(quit()));
////////////////////////////////////////////////////////////////////////
// Load and convert document
// idoc came out of the index data (main text and some fields missing).
// fdoc is the complete one what we are going to extract from storage.
LoadThread lthr(theconfig, idoc, prefs.previewHtml, this);
connect(<hr, SIGNAL(finished()), &loop, SLOT(quit()));
lthr.start();
for (int i = 0;;i++) {
tT.start(1000);
loop.exec();
if (lthr.isFinished())
break;
if (progress.wasCanceled()) {
CancelCheck::instance().setCancel();
}
if (i == 1)
progress.show();
}
LOGDEB("loadDocInCurrentTab: after file load: cancel " <<
CancelCheck::instance().cancelState() << " status " << lthr.status <<
" text length " << lthr.fdoc.text.length() << "\n");
if (CancelCheck::instance().cancelState())
return false;
if (lthr.status != 0) {
progress.close();
QString explain;
if (!lthr.missing.empty()) {
explain = QString::fromUtf8("<br>") +
tr("Missing helper program: ") +
QString::fromLocal8Bit(lthr.missing.c_str());
QMessageBox::warning(0, "Recoll",
tr("Can't turn doc into internal "
"representation for ") +
lthr.fdoc.mimetype.c_str() + explain);
} else {
if (progress.wasCanceled()) {
//QMessageBox::warning(0, "Recoll", tr("Canceled"));
} else {
QMessageBox::warning(0, "Recoll",
tr("Error while loading file"));
}
}
return false;
}
// Reset config just in case.
theconfig->setKeyDir("");
////////////////////////////////////////////////////////////////////////
// Create preview text: highlight search terms
// We don't do the highlighting for very big texts: too long. We
// should at least do special char escaping, in case a '&' or '<'
// somehow slipped through previous processing.
bool highlightTerms = lthr.fdoc.text.length() <
(unsigned long)prefs.maxhltextmbs * 1024 * 1024;
// Final text is produced in chunks so that we can display the top
// while still inserting at bottom
PreviewTextEdit *editor = currentEditor();
editor->m_plaintorich->clear();
// For an actual html file, if we want to have the images and
// style loaded in the preview, we need to set the search
// path. Not too sure this is a good idea as I find them rather
// distracting when looking for text, esp. with qtextedit
// relatively limited html support (text sometimes get hidden by
// images).
#if 0
string path = fileurltolocalpath(idoc.url);
if (!path.empty()) {
path = path_getfather(path);
QStringList paths(QString::fromLocal8Bit(path.c_str()));
editor->setSearchPaths(paths);
}
#endif
editor->setHtml("");
editor->m_format = Qt::RichText;
bool inputishtml = !lthr.fdoc.mimetype.compare("text/html");
QStringList qrichlst;
editor->m_plaintorich->set_activatelinks(prefs.previewActiveLinks);
#if 1
if (highlightTerms) {
progress.setLabelText(tr("Creating preview text"));
qApp->processEvents();
if (inputishtml) {
LOGDEB1("Preview: got html " << lthr.fdoc.text << "\n");
editor->m_plaintorich->set_inputhtml(true);
} else {
LOGDEB1("Preview: got plain " << lthr.fdoc.text << "\n");
editor->m_plaintorich->set_inputhtml(false);
}
ToRichThread rthr(lthr.fdoc.text, m_hData, editor->m_plaintorich,
qrichlst, this);
connect(&rthr, SIGNAL(finished()), &loop, SLOT(quit()));
rthr.start();
for (;;) {
tT.start(1000);
loop.exec();
if (rthr.isFinished())
break;
if (progress.wasCanceled()) {
CancelCheck::instance().setCancel();
}
}
// Conversion to rich text done
if (CancelCheck::instance().cancelState()) {
if (qrichlst.size() == 0 || qrichlst.front().size() == 0) {
// We can't call closeCurrentTab here as it might delete
// the object which would be a nasty surprise to our
// caller.
return false;
} else {
qrichlst.back() += "<b>Cancelled !</b>";
}
}
} else {
LOGDEB("Preview: no highlighting, loading " << lthr.fdoc.text.size() <<
" bytes\n");
// No plaintorich() call. In this case, either the text is
// html and the html quoting is hopefully correct, or it's
// plain-text and there is no need to escape special
// characters. We'd still want to split in chunks (so that the
// top is displayed faster), but we must not cut tags, and
// it's too difficult on html. For text we do the splitting on
// a QString to avoid utf8 issues.
QString qr = QString::fromUtf8(lthr.fdoc.text.c_str(),
lthr.fdoc.text.length());
int l = 0;
if (inputishtml) {
qrichlst.push_back(qr);
} else {
editor->setPlainText("");
editor->m_format = Qt::PlainText;
for (int pos = 0; pos < (int)qr.length(); pos += l) {
l = MIN(CHUNKL, qr.length() - pos);
qrichlst.push_back(qr.mid(pos, l));
}
}
}
#else // For testing qtextedit bugs...
highlightTerms = true;
const char *textlist[] =
{
"Du plain text avec un\n <termtag>termtag</termtag> fin de ligne:",
"texte apres le tag\n",
};
const int listl = sizeof(textlist) / sizeof(char*);
for (int i = 0 ; i < listl ; i++)
qrichlst.push_back(QString::fromUtf8(textlist[i]));
#endif
///////////////////////////////////////////////////////////
// Load text into editor window.
progress.setLabelText(tr("Loading preview text into editor"));
qApp->processEvents();
for (QStringList::iterator it = qrichlst.begin();
it != qrichlst.end(); it++) {
qApp->processEvents();
editor->append(*it);
// We need to save the rich text for printing, the editor does
// not do it consistently for us.
editor->m_richtxt.append(*it);
if (progress.wasCanceled()) {
editor->append("<b>Cancelled !</b>");
LOGDEB("loadDocInCurrentTab: cancelled in editor load\n");
break;
}
}
progress.close();
editor->m_curdsp = PreviewTextEdit::PTE_DSPTXT;
////////////////////////////////////////////////////////////////////////
// Finishing steps
// Maybe the text was actually empty ? Switch to fields then. Else free-up
// the text memory in the loaded document. We still have a copy of the text
// in editor->m_richtxt
bool textempty = lthr.fdoc.text.empty();
if (!textempty)
lthr.fdoc.text.clear();
editor->m_fdoc = lthr.fdoc;
editor->m_dbdoc = idoc;
if (textempty)
editor->displayFields();
// If this is an image, display it instead of the text.
if (!idoc.mimetype.compare(0, 6, "image/")) {
string fn = fileurltolocalpath(idoc.url);
theconfig->setKeyDir(fn.empty() ? "" : path_getfather(fn));
// We want a real file, so if this comes from data or we have
// an ipath, create it.
if (fn.empty() || !idoc.ipath.empty()) {
TempFile temp = lthr.tmpimg;
if (temp.ok()) {
LOGDEB1("Preview: load: got temp file from internfile\n");
} else if (!FileInterner::idocToFile(temp, string(),
theconfig, idoc)) {
temp = TempFile(); // just in case.
}
if (temp.ok()) {
rememberTempFile(temp);
fn = temp.filename();
editor->m_tmpfilename = fn;
} else {
editor->m_tmpfilename.erase();
fn.erase();
}
}
if (!fn.empty()) {
editor->m_image = QImage(fn.c_str());
if (!editor->m_image.isNull())
editor->displayImage();
}
}
// Position the editor so that the first search term is visible
if (searchTextCMB->currentText().length() != 0) {
// If there is a current search string, perform the search
m_canBeep = true;
doSearch(searchTextCMB->currentText(), true, false);
} else {
// Position to the first query term
if (editor->m_plaintorich->haveAnchors()) {
QString aname = editor->m_plaintorich->curAnchorName();
LOGDEB2("Call movetoanchor(" << qs2utf8s(aname) << ")\n");
editor->scrollToAnchor(aname);
// Position the cursor approximately at the anchor (top of
// viewport) so that searches start from here
QTextCursor cursor = editor->cursorForPosition(QPoint(0, 0));
editor->setTextCursor(cursor);
}
}
// Enter document in document history
historyEnterDoc(rcldb, g_dynconf, idoc);
editor->setFocus();
emit(previewExposed(this, m_searchId, docnum));
LOGDEB("loadDocInCurrentTab: returning true\n");
return true;
}
PreviewTextEdit::PreviewTextEdit(QWidget* parent, const char* nm, Preview *pv)
: QTextBrowser(parent), m_preview(pv),
m_plaintorich(new PlainToRichQtPreview()),
m_dspflds(false), m_docnum(-1)
{
setContextMenuPolicy(Qt::CustomContextMenu);
setObjectName(nm);
connect(this, SIGNAL(customContextMenuRequested(const QPoint&)),
this, SLOT(createPopupMenu(const QPoint&)));
connect(this, SIGNAL(anchorClicked(const QUrl &)),
this, SLOT(onAnchorClicked(const QUrl&)));
setOpenExternalLinks(false);
setOpenLinks(false);
}
void PreviewTextEdit::onAnchorClicked(const QUrl& url)
{
LOGDEB("PreviewTextEdit::onAnchorClicked: " << qs2utf8s(url.toString())
<< std::endl);
if (prefs.previewActiveLinks && m_preview->m_rclmain) {
Rcl::Doc doc;
doc.url = qs2utf8s(url.toString()).c_str();
doc.mimetype = "text/html";
m_preview->m_rclmain->startNativeViewer(doc);
}
}
void PreviewTextEdit::createPopupMenu(const QPoint& pos)
{
LOGDEB1("PreviewTextEdit::createPopupMenu()\n");
QMenu *popup = new QMenu(this);
switch (m_curdsp) {
case PTE_DSPTXT:
popup->addAction(tr("Show fields"), this, SLOT(displayFields()));
if (!m_image.isNull())
popup->addAction(tr("Show image"), this, SLOT(displayImage()));
break;
case PTE_DSPFLDS:
popup->addAction(tr("Show main text"), this, SLOT(displayText()));
if (!m_image.isNull())
popup->addAction(tr("Show image"), this, SLOT(displayImage()));
break;
case PTE_DSPIMG:
default:
popup->addAction(tr("Show fields"), this, SLOT(displayFields()));
popup->addAction(tr("Show main text"), this, SLOT(displayText()));
break;
}
popup->addAction(tr("Select All"), this, SLOT(selectAll()));
popup->addAction(tr("Copy"), this, SLOT(copy()));
popup->addAction(tr("Print"), this, SLOT(print()));
if (prefs.previewPlainPre) {
popup->addAction(tr("Fold lines"), m_preview, SLOT(togglePlainPre()));
} else {
popup->addAction(tr("Preserve indentation"),
m_preview, SLOT(togglePlainPre()));
}
// Need to check ipath until we fix the internfile bug that always
// has it convert to html for top level docs
if (!m_dbdoc.url.empty() && !m_dbdoc.ipath.empty())
popup->addAction(tr("Save document to file"),
m_preview, SLOT(emitSaveDocToFile()));
popup->popup(mapToGlobal(pos));
}
// Display main text
void PreviewTextEdit::displayText()
{
LOGDEB1("PreviewTextEdit::displayText()\n");
if (m_format == Qt::PlainText)
setPlainText(m_richtxt);
else
setHtml(m_richtxt);
m_curdsp = PTE_DSPTXT;
}
// Display field values
void PreviewTextEdit::displayFields()
{
LOGDEB1("PreviewTextEdit::displayFields()\n");
QString txt = "<html><head></head><body>\n";
txt += "<b>" + QString::fromLocal8Bit(m_url.c_str());
if (!m_ipath.empty())
txt += "|" + QString::fromUtf8(m_ipath.c_str());
txt += "</b><br><br>";
txt += "<dl>\n";
for (map<string,string>::const_iterator it = m_fdoc.meta.begin();
it != m_fdoc.meta.end(); it++) {
if (!it->second.empty())
txt += "<dt>" + QString::fromUtf8(it->first.c_str()) + "</dt> "
+ "<dd>" + QString::fromUtf8(escapeHtml(it->second).c_str())
+ "</dd>\n";
}
txt += "</dl></body></html>";
setHtml(txt);
m_curdsp = PTE_DSPFLDS;
}
void PreviewTextEdit::displayImage()
{
LOGDEB1("PreviewTextEdit::displayImage()\n");
if (m_image.isNull())
displayText();
setPlainText("");
if (m_image.width() > width() ||
m_image.height() > height()) {
m_image = m_image.scaled(width(), height(), Qt::KeepAspectRatio);
}
document()->addResource(QTextDocument::ImageResource, QUrl("image"),
m_image);
QTextCursor cursor = textCursor();
cursor.insertImage("image");
m_curdsp = PTE_DSPIMG;
}
void PreviewTextEdit::mouseDoubleClickEvent(QMouseEvent *event)
{
LOGDEB2("PreviewTextEdit::mouseDoubleClickEvent\n");
QTextEdit::mouseDoubleClickEvent(event);
if (textCursor().hasSelection() && m_preview)
m_preview->emitWordSelect(textCursor().selectedText());
}
void PreviewTextEdit::print()
{
LOGDEB("PreviewTextEdit::print\n");
if (!m_preview)
return;
#ifndef QT_NO_PRINTER
QPrinter printer;
QPrintDialog *dialog = new QPrintDialog(&printer, this);
dialog->setWindowTitle(tr("Print Current Preview"));
if (dialog->exec() != QDialog::Accepted)
return;
QTextEdit::print(&printer);
#endif
}