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better handle preview close during load

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This commit is contained in:
dockes 2007-07-13 06:31:30 +00:00
parent 68bc385137
commit e527642485
3 changed files with 72 additions and 43 deletions
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109
src/qtgui/preview_w.cpp
View File

@ -1,5 +1,5 @@
#ifndef lint
static char rcsid[] = "@(#$Id: preview_w.cpp,v 1.22 2007-06-20 13:15:57 dockes Exp $ (C) 2005 J.F.Dockes";
static char rcsid[] = "@(#$Id: preview_w.cpp,v 1.23 2007-07-13 06:31:30 dockes Exp $ (C) 2005 J.F.Dockes";
#endif
/*
* This program is free software; you can redistribute it and/or modify
@ -100,12 +100,14 @@ void Preview::init()
currentChanged(pvTab->currentPage());
}
void Preview::destroy()
{
}
void Preview::closeEvent(QCloseEvent *e)
{
LOGDEB(("Preview::closeEvent. m_loading %d\n", m_loading));
if (m_loading) {
CancelCheck::instance().setCancel();
e->ignore();
return;
}
prefs.pvwidth = width();
prefs.pvheight = height();
emit previewExposed(m_searchId, -1);
@ -217,29 +219,32 @@ QTextEdit *Preview::getCurrentEditor()
void Preview::doSearch(const QString &_text, bool next, bool reverse,
bool wordOnly)
{
LOGDEB(("Preview::doSearch: [%s] next %d rev %d\n",
(const char *)_text.utf8(), int(next), int(reverse)));
LOGDEB(("Preview::doSearch: text [%s] txtlen %d next %d rev %d word %d\n",
(const char *)_text.utf8(), _text.length(), int(next),
int(reverse), int(wordOnly)));
QString text = _text;
if (text.isEmpty()) {
#ifdef QT_SCROLL_TO_ANCHOR_BUG
text = QString::fromUtf8(firstTermBeacon);
#endif
}
bool matchCase = matchCheck->isChecked();
QTextEdit *edit = getCurrentEditor();
if (edit == 0) {
// ??
return;
}
bool matchCase = matchCheck->isChecked();
if (text.isEmpty()) {
#ifdef QT_SCROLL_TO_ANCHOR_BUG
text = QString::fromUtf8(firstTermBeacon);
matchCase = false;
#else
#error "Cycling without beacons needs coding"
#endif
}
LOGDEB(("Preview::doSearch: find: case %d word %d fw %d\n",
matchCase, wordOnly, !reverse));
// If the search text changed 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 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) {
int ps, is, pe, ie;
edit->getSelection(&ps, &is, &pe, &ie);
@ -247,11 +252,13 @@ void Preview::doSearch(const QString &_text, bool next, bool reverse,
is--;
else if (ps > 0)
ps--;
LOGDEB(("Setting cursor to %d %d\n", ps, is));
LOGDEB(("Preview::doSearch: setting cursor to %d %d\n", ps, is));
edit->setCursorPosition(ps, is);
}
LOGDEB(("Preview::doSearch: first find call\n"));
bool found = edit->find(text, matchCase, wordOnly, !reverse, 0, 0);
LOGDEB(("Preview::doSearch: first find call return\n"));
// If not found, try to wrap around.
if (!found && next) {
LOGDEB(("Preview::doSearch: wrapping around\n"));
@ -262,7 +269,9 @@ void Preview::doSearch(const QString &_text, bool next, bool reverse,
} else {
mspara = msindex = 0;
}
LOGDEB(("Preview::doSearch: 2nd find call\n"));
found = edit->find(text,matchCase, false, !reverse, &mspara, &msindex);
LOGDEB(("Preview::doSearch: 2nd find call return\n"));
}
if (found) {
@ -272,15 +281,14 @@ void Preview::doSearch(const QString &_text, bool next, bool reverse,
QApplication::beep();
canBeep = false;
}
LOGDEB(("Preview::doSearch: return\n"));
}
void Preview::nextPressed()
{
doSearch(searchTextLine->text(), true, false);
}
void Preview::prevPressed()
{
doSearch(searchTextLine->text(), true, true);
@ -362,8 +370,11 @@ void Preview::textDoubleClicked(int, int)
void Preview::closeCurrentTab()
{
if (m_loading)
LOGDEB(("Preview::closeCurrentTab: m_loading %d\n", m_loading));
if (m_loading) {
CancelCheck::instance().setCancel();
return;
}
if (pvTab->count() > 1) {
QWidget *tw = pvTab->currentPage();
if (!tw)
@ -595,7 +606,7 @@ class LoadGuard {
bool *m_bp;
public:
LoadGuard(bool *bp) {m_bp = bp ; *m_bp = true;}
~LoadGuard() {*m_bp = false;}
~LoadGuard() {*m_bp = false; CancelCheck::instance().setCancel(false);}
};
bool Preview::loadFileInCurrentTab(string fn, size_t sz, const Rcl::Doc &idoc,
@ -607,9 +618,9 @@ bool Preview::loadFileInCurrentTab(string fn, size_t sz, const Rcl::Doc &idoc,
}
LoadGuard guard(&m_loading);
CancelCheck::instance().setCancel(false);
Rcl::Doc doc = idoc;
bool cancel = false;
if (doc.meta["title"].empty())
doc.meta["title"] = path_getsimple(doc.url);
@ -650,12 +661,16 @@ bool Preview::loadFileInCurrentTab(string fn, size_t sz, const Rcl::Doc &idoc,
qApp->processEvents();
if (progress.wasCanceled()) {
CancelCheck::instance().setCancel();
cancel = true;
}
if (prog >= 5)
sleep(1);
}
if (cancel)
LOGDEB(("LoadFileInCurrentTab: after file load: cancel %d status %d"
" text length %d\n",
CancelCheck::instance().cancelState(), status, fdoc.text.length()));
if (CancelCheck::instance().cancelState())
return false;
if (status != 0) {
QString explain;
@ -694,12 +709,13 @@ bool Preview::loadFileInCurrentTab(string fn, size_t sz, const Rcl::Doc &idoc,
qApp->processEvents();
if (progress.wasCanceled()) {
CancelCheck::instance().setCancel();
cancel = true;
}
if (prog >= 5)
sleep(1);
}
if (cancel) {
// Conversion to rich text done
if (CancelCheck::instance().cancelState()) {
if (richTxt.length() == 0) {
// We cant call closeCurrentTab here as it might delete
// the object which would be a nasty surprise to our
@ -713,6 +729,11 @@ bool Preview::loadFileInCurrentTab(string fn, size_t sz, const Rcl::Doc &idoc,
richTxt = QString::fromUtf8(fdoc.text.c_str(), fdoc.text.length());
}
int pos = richTxt.find(QString::fromUtf8(firstTermBeacon));
bool hasAnchors = (pos != -1);
LOGDEB(("LoadFileInCurrentTab: rich: cancel %d txtln %d, hasAnchors %d (pos %d)\n",
CancelCheck::instance().cancelState(), richTxt.length(), hasAnchors, pos));
// Load into editor
// Do it in several chunks
QTextEdit *editor = getCurrentEditor();
@ -750,32 +771,40 @@ bool Preview::loadFileInCurrentTab(string fn, size_t sz, const Rcl::Doc &idoc,
}
if (progress.wasCanceled()) {
cancel = true;
editor->append("<b>Cancelled !</b>");
LOGDEB(("Cancelled\n"));
LOGDEB(("LoadFileInCurrentTab: cancelled in editor load\n"));
break;
}
}
progress.close();
if (searchTextLine->text().length() != 0) {
canBeep = true;
doSearch(searchTextLine->text(), true, false);
} else {
QString aname = QString::fromUtf8(termAnchorName(1).c_str());
LOGDEB2(("Calling scrolltoanchor [%s]\n", (const char *)aname.utf8()));
editor->scrollToAnchor(aname);
if (hasAnchors) {
QString aname = QString::fromUtf8(termAnchorName(1).c_str());
LOGDEB2(("Call scrolltoanchor(%s)\n", (const char *)aname.utf8()));
editor->scrollToAnchor(aname);
// The q3textedit version of find is slow to the point of being
// unusable (plus it does not always work)
#if (QT_VERSION < 0x040000)
#ifdef QT_SCROLL_TO_ANCHOR_BUG
bool ocanbeep = canBeep;
canBeep = false;
QString empty;
doSearch(empty, 0, false, false);
canBeep = ocanbeep;
bool ocanbeep = canBeep;
canBeep = false;
QString empty;
// doSearch(_text, next, reverse, wordOnly)
doSearch(empty, true, false, false);
canBeep = ocanbeep;
#endif
#endif // (QT_VERSION < 0x040000)
}
}
// Enter document in document history
g_dynconf->enterDoc(fn, doc.ipath);
editor->setFocus();
emit(previewExposed(m_searchId, docnum));
LOGDEB(("LoadFileInCurrentTab: returning true\n"));
return true;
}

3
src/qtgui/preview_w.h
View File

@ -1,6 +1,6 @@
#ifndef _PREVIEW_W_H_INCLUDED_
#define _PREVIEW_W_H_INCLUDED_
/* @(#$Id: preview_w.h,v 1.11 2007-06-12 13:31:38 dockes Exp $ (C) 2006 J.F.Dockes */
/* @(#$Id: preview_w.h,v 1.12 2007-07-13 06:31:30 dockes Exp $ (C) 2006 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
@ -118,7 +118,6 @@ private:
QWidget *currentW;
HiliteData m_hData;
void init();
virtual void destroy();
TabData *tabDataForCurrent(); // Return auxiliary data pointer for cur tab
};

3
src/qtgui/rclmain_w.cpp
View File

@ -1,5 +1,5 @@
#ifndef lint
static char rcsid[] = "@(#$Id: rclmain_w.cpp,v 1.31 2007-06-20 13:15:58 dockes Exp $ (C) 2005 J.F.Dockes";
static char rcsid[] = "@(#$Id: rclmain_w.cpp,v 1.32 2007-07-13 06:31:30 dockes Exp $ (C) 2005 J.F.Dockes";
#endif
/*
* This program is free software; you can redistribute it and/or modify
@ -418,6 +418,7 @@ void RclMain::showExtIdxDialog()
// where the current one is closed
void RclMain::previewClosed(QWidget *w)
{
LOGDEB(("RclMain::previewClosed(%p)\n", w));
if (w == (QWidget *)curPreview) {
LOGDEB(("Active preview closed\n"));
curPreview = 0;