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koffice/lib/kofficecore/KoSpeaker.cpp

603 lines
19 KiB

/*
* This file is part of the KDE/KOffice project.
* Copyright (C) 2005, Gary Cramblitt <garycramblitt@comcast.net>
*
* @author Gary Cramblitt <garycramblitt@comcast.net>
* @since KOffice 1.5
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
// TQt includes.
#include <tqtimer.h>
#include <tqcursor.h>
#include <tqtooltip.h>
#include <tqwhatsthis.h>
#include <tqmenubar.h>
#include <tqlabel.h>
#include <tqbutton.h>
#include <tqcombobox.h>
#include <tqtabbar.h>
#include <tqgroupbox.h>
#include <tqlineedit.h>
#include <tqtextedit.h>
#include <tqlistview.h>
#include <tqlistbox.h>
#include <tqiconview.h>
#include <tqtable.h>
#include <tqgridview.h>
#include <tqregexp.h>
#include <tqstylesheet.h>
// KDE includes.
#include <tdeapplication.h>
#include <tdelocale.h>
#include <tdeglobal.h>
#include <dcopclient.h>
#include <tdeconfig.h>
#include <ktrader.h>
#include <kdebug.h>
// KoSpeaker includes.
#include "KoSpeaker.h"
#include "KoSpeaker.moc"
// ------------------ KoSpeakerPrivate ------------------------
class KoSpeakerPrivate
{
public:
KoSpeakerPrivate() :
m_versionChecked(false),
m_enabled(false),
m_speakFlags(0),
m_timeout(600),
m_timer(0),
m_prevPointerWidget(0),
m_prevPointerId(-1),
m_prevFocusWidget(0),
m_prevFocusId(-1),
m_prevWidget(0),
m_prevId(-1),
m_cancelSpeakWidget(false)
{}
// List of text jobs.
TQValueList<uint> m_jobNums;
// Whether the version of KTTSD has been requested from the daemon.
bool m_versionChecked;
// KTTSD version string.
TQString m_kttsdVersion;
// Language code of last spoken text.
TQString m_langCode;
// Word used before speaking an accelerator letter.
TQString m_acceleratorPrefix;
// Whether TTS service is available or not.
bool m_enabled;
// TTS options.
uint m_speakFlags;
// Timer which implements the polling interval.
int m_timeout;
TQTimer* m_timer;
// Widget and part of widget for 1) last widget under mouse pointer, 2) last widget with focus, and
// last widget spoken.
TQWidget* m_prevPointerWidget;
int m_prevPointerId;
TQWidget* m_prevFocusWidget;
int m_prevFocusId;
TQWidget* m_prevWidget;
int m_prevId;
// True when cancelSpeakWidget has been called in response to customSpeakWidget signal.
bool m_cancelSpeakWidget;
};
// ------------------ KoSpeaker -------------------------------
KoSpeaker* KoSpeaker::KSpkr = 0L;
KoSpeaker::KoSpeaker()
{
Q_ASSERT(!KSpkr);
KSpkr = this;
d = new KoSpeakerPrivate();
readConfig(TDEGlobal::config());
}
KoSpeaker::~KoSpeaker()
{
if (d->m_jobNums.count() > 0) {
for (int i = d->m_jobNums.count() - 1; i >= 0; i--)
removeText(d->m_jobNums[i]);
d->m_jobNums.clear();
}
delete d;
KSpkr = 0;
}
bool KoSpeaker::isEnabled() const { return d->m_enabled; }
void KoSpeaker::probe()
{
d->m_timer->stop();
TQWidget* w;
TQPoint pos;
bool spoke = false;
if ( d->m_speakFlags & SpeakFocusWidget ) {
w = kapp->focusWidget();
if (w) {
spoke = maybeSayWidget(w);
if (!spoke)
emit customSpeakWidget(w, pos, d->m_speakFlags);
}
}
if ( !spoke && d->m_speakFlags & SpeakPointerWidget ) {
pos = TQCursor::pos();
w = kapp->widgetAt(pos, true);
if (w) {
if (!maybeSayWidget(w, pos))
emit customSpeakWidget(w, pos, d->m_speakFlags);
}
}
d->m_timer->start(d->m_timeout);
}
void KoSpeaker::queueSpeech(const TQString& msg, const TQString& langCode /*= TQString()*/, bool first /*= true*/)
{
if (!startKttsd()) return;
int jobCount = d->m_jobNums.count();
if (first && jobCount > 0) {
for (int i = jobCount - 1; i >= 0; i--)
removeText(d->m_jobNums[i]);
d->m_jobNums.clear();
jobCount = 0;
}
TQString s = msg.stripWhiteSpace();
if (s.isEmpty()) return;
// kdDebug() << "KoSpeaker::queueSpeech: s = [" << s << "]" << endl;
// If no language code given, assume desktop setting.
TQString languageCode = langCode;
if (langCode.isEmpty())
languageCode = TDEGlobal::locale()->language();
// kdDebug() << "KoSpeaker::queueSpeech:languageCode = " << languageCode << endl;
// If KTTSD version is 0.3.5 or later, we can use the appendText method to submit a
// single, multi-part text job. Otherwise, must submit separate text jobs.
// If language code changes, then must also start a new text job so that it will
// be spoken in correct talker.
if (getKttsdVersion().isEmpty())
d->m_jobNums.append(setText(s, languageCode));
else {
if ((jobCount == 0) || (languageCode != d->m_langCode))
d->m_jobNums.append(setText(s, languageCode));
else
appendText(s, d->m_jobNums[jobCount-1]);
}
d->m_langCode = languageCode;
}
void KoSpeaker::startSpeech()
{
for (uint i = 0; i < d->m_jobNums.count(); i++)
startText(d->m_jobNums[i]);
}
void KoSpeaker::readConfig(TDEConfig* config)
{
delete d->m_timer;
d->m_timer = 0;
config->setGroup("TTS");
d->m_speakFlags = 0;
if (config->readBoolEntry("SpeakPointerWidget", false)) d->m_speakFlags |= SpeakPointerWidget;
if (config->readBoolEntry("SpeakFocusWidget", false)) d->m_speakFlags |= SpeakFocusWidget;
if (config->readBoolEntry("SpeakTooltips", true)) d->m_speakFlags |= SpeakTooltip;
if (config->readBoolEntry("SpeakWhatsThis", false)) d->m_speakFlags |= SpeakWhatsThis;
if (config->readBoolEntry("SpeakDisabled", true)) d->m_speakFlags |= SpeakDisabled;
if (config->readBoolEntry("SpeakAccelerators", true)) d->m_speakFlags |= SpeakAccelerator;
d->m_timeout = config->readNumEntry("PollingInterval", 600);
d->m_acceleratorPrefix = config->readEntry("AcceleratorPrefixWord", i18n("Accelerator"));
if (d->m_speakFlags & (SpeakPointerWidget | SpeakFocusWidget)) {
if (startKttsd()) {
d->m_timer = new TQTimer( this );
connect( d->m_timer, TQT_SIGNAL(timeout()), this, TQT_SLOT(probe()) );
d->m_timer->start( d->m_timeout );
}
}
}
bool KoSpeaker::maybeSayWidget(TQWidget* w, const TQPoint& pos /*=TQPoint()*/)
{
if (!w) return false;
int id = -1;
TQString text;
if (w->inherits("TQViewportWidget")) {
w = w->parentWidget();
if (!w) return false;
}
// Handle widgets that have multiple parts.
if ( w->inherits("TQMenuBar") ) {
TQMenuBar* menuBar = dynamic_cast<TQMenuBar *>(w);
if (pos == TQPoint()) {
for (uint i = 0; i < menuBar->count(); ++i)
if (menuBar->isItemActive(menuBar->idAt(i))) {
id = menuBar->idAt(i);
break;
}
}
// TODO: This doesn't work. Need way to figure out the TQMenuItem underneath mouse pointer.
// id = menuBarItemAt(menuBar, pos);
if ( id != -1 )
text = menuBar->text(id);
}
else
if (w->inherits("TQPopupMenu")) {
TQPopupMenu* popupMenu = dynamic_cast<TQPopupMenu *>(w);
if (pos == TQPoint()) {
for (uint i = 0; i < popupMenu->count(); ++i)
if (popupMenu->isItemActive(popupMenu->idAt(i))) {
id = popupMenu->idAt(i);
break;
}
} else
id = popupMenu->idAt(popupMenu->mapFromGlobal(pos));
if ( id != -1 )
text = popupMenu->text(id);
}
else
if (w->inherits("TQTabBar")) {
TQTabBar* tabBar = dynamic_cast<TQTabBar *>(w);
TQTab* tab = 0;
if (pos == TQPoint())
tab = tabBar->tabAt(tabBar->currentTab());
else
tab = tabBar->selectTab(tabBar->mapFromGlobal(pos));
if (tab) {
id = tab->identifier();
text = tab->text();
}
}
else
if (w->inherits("TQListView")) {
TQListView* lv = dynamic_cast<TQListView *>(w);
TQListViewItem* item = 0;
if (pos == TQPoint())
item = lv->currentItem();
else
item = lv->itemAt(lv->viewport()->mapFromGlobal(pos));
if (item) {
id = lv->itemPos(item);
text = item->text(0);
for (int col = 1; col < lv->columns(); ++col)
if (!item->text(col).isEmpty()) text += ". " + item->text(col);
}
}
else
if (w->inherits("TQListBox")) {
TQListBox* lb = dynamic_cast<TQListBox *>(w);
// qt docs say coordinates are in "on-screen" coordinates. What does that mean?
TQListBoxItem* item = 0;
if (pos == TQPoint())
item = lb->item(lb->currentItem());
else
item = lb->itemAt(lb->mapFromGlobal(pos));
if (item) {
id = lb->index(item);
text = item->text();
}
}
else
if (w->inherits("TQIconView")) {
TQIconView* iv = dynamic_cast<TQIconView *>(w);
TQIconViewItem* item = 0;
if (pos == TQPoint())
item = iv->currentItem();
else
item = iv->findItem(iv->viewportToContents(iv->viewport()->mapFromGlobal(pos)));
if (item) {
id = item->index();
text = item->text();
}
}
else
if (w->inherits("TQTable")) {
TQTable* tbl = dynamic_cast<TQTable *>(w);
int row = -1;
int col = -1;
if (pos == TQPoint()) {
row = tbl->currentRow();
col = tbl->currentColumn();
} else {
TQPoint p = tbl->viewportToContents(tbl->viewport()->mapFromGlobal(pos));
row = tbl->rowAt(p.y());
col = tbl->columnAt(p.x());
}
if (row >= 0 && col >= 0) {
id = (row * tbl->numCols()) + col;
text = tbl->text(row, col);
}
}
else
if (w->inherits("TQGridView")) {
TQGridView* gv = dynamic_cast<TQGridView *>(w);
// TODO: TQGridView does not have a "current" row or column. Don't think they can even get focus?
int row = -1;
int col = -1;
if (pos != TQPoint()) {
TQPoint p = gv->viewportToContents(gv->viewport()->mapFromGlobal(pos));
row = gv->rowAt(p.y());
col = gv->columnAt(p.x());
}
if (row >= 0 && col >= 0)
id = (row * gv->numCols()) + col;
}
if (pos == TQPoint()) {
if ( w == d->m_prevFocusWidget && id == d->m_prevFocusId) return false;
d->m_prevFocusWidget = w;
d->m_prevFocusId = id;
} else {
if ( w == d->m_prevPointerWidget && id == d->m_prevPointerId) return false;
d->m_prevPointerWidget = w;
d->m_prevPointerId = id;
}
if (w == d->m_prevWidget && id == d->m_prevId) return false;
d->m_prevWidget = w;
d->m_prevId = id;
// kdDebug() << " w = " << w << endl;
d->m_cancelSpeakWidget = false;
emit customSpeakNewWidget(w, pos, d->m_speakFlags);
if (d->m_cancelSpeakWidget) return true;
// Handle simple, single-part widgets.
if ( w->inherits("TQButton") )
text = dynamic_cast<TQButton *>(w)->text();
else
if (w->inherits("TQComboBox"))
text = dynamic_cast<TQComboBox *>(w)->currentText();
else
if (w->inherits("TQLineEdit"))
text = dynamic_cast<TQLineEdit *>(w)->text();
else
if (w->inherits("TQTextEdit"))
text = dynamic_cast<TQTextEdit *>(w)->text();
else
if (w->inherits("TQLabel"))
text = dynamic_cast<TQLabel *>(w)->text();
else
if (w->inherits("TQGroupBox")) {
// TODO: Should calculate this number from font size?
if (w->mapFromGlobal(pos).y() < 30)
text = dynamic_cast<TQGroupBox *>(w)->title();
}
// else
// if (w->inherits("TQWhatsThat")) {
// text = dynamic_cast<TQWhatsThat *>(w)->text();
// }
text = text.stripWhiteSpace();
if (!text.isEmpty()) {
if (text.right(1) == ".")
text += " ";
else
text += ". ";
}
if (d->m_speakFlags & SpeakTooltip || text.isEmpty()) {
// kdDebug() << "pos = " << pos << endl;
// TQPoint p = w->mapFromGlobal(pos);
// kdDebug() << "p = " << p << endl;
TQString t = TQToolTip::textFor(w, pos);
t = t.stripWhiteSpace();
if (!t.isEmpty()) {
if (t.right(1) != ".") t += ".";
text += t + " ";
}
}
if (d->m_speakFlags & SpeakWhatsThis || text.isEmpty()) {
TQString t = TQWhatsThis::textFor(w, pos);
t = t.stripWhiteSpace();
if (!t.isEmpty()) {
if (t.right(1) != ".") t += ".";
text += t + " ";
}
}
if (d->m_speakFlags & SpeakDisabled) {
if (!w->isEnabled())
text += i18n("A grayed widget", "Disabled. ");
}
return sayWidget(text);
}
bool KoSpeaker::sayWidget(const TQString& msg)
{
TQString s = msg;
if (d->m_speakFlags & SpeakAccelerator) {
int amp = s.find("&");
if (amp >= 0) {
TQString acc = s.mid(++amp,1);
acc = acc.stripWhiteSpace();
if (!acc.isEmpty())
s += ". " + d->m_acceleratorPrefix + " " + acc + ".";
}
}
s.remove("&");
if (TQStyleSheet::mightBeRichText(s)) {
// kdDebug() << "richtext" << endl;
s.replace(TQRegExp("</?[pbius]>"), "");
s.replace(TQRegExp("</?h\\d>"), "");
s.replace(TQRegExp("<(br|hr)>"), " ");
s.replace(TQRegExp(
"</?(qt|center|li|pre|div|span|em|strong|big|small|sub|sup|code|tt|font|nobr|ul|ol|dl|dt)>"), "");
s.replace(TQRegExp("</?(table|tr|th|td).*>"), "");
s.replace(TQRegExp("</?a\\s.+>"), "");
// Replace <img source="small|frame_text"> with "small frame_text image. "
s.replace(TQRegExp("<img\\s.*(?:source=|src=)\"([^|\"]+)[|]?([^|\"]*)\">"), "\\1 \\2 image. ");
}
if (s.isEmpty()) return false;
s.replace("Ctrl+", i18n("control plus "));
s.replace("Alt+", i18n("alt plus "));
s.replace("+", i18n(" plus "));
sayScreenReaderOutput(s, "");
return true;
}
// This doesn't work. Anybody know how to find the menu item underneath mouse pointer
// in a TQMenuBar?
// int KoSpeaker::menuBarItemAt(TQMenuBar* m, const TQPoint& p)
// {
// for (uint i = 0; i < m->count(); i++) {
// int id = m->idAt(i);
// TQMenuItem* mi = m->findItem(id);
// TQWidget* w = mi->widget();
// if (w->rect().contains(w->mapFromGlobal(p))) return id;
// }
// return -1;
// }
/*static*/ bool KoSpeaker::isKttsdInstalled()
{
TDETrader::OfferList offers = TDETrader::self()->query("DCOP/Text-to-Speech", "Name == 'KTTSD'");
return (offers.count() > 0);
}
bool KoSpeaker::startKttsd()
{
DCOPClient *client = kapp->dcopClient();
// If KTTSD not running, start it.
if (!client->isApplicationRegistered("kttsd"))
{
TQString error;
if (kapp->startServiceByDesktopName("kttsd", TQStringList(), &error)) {
kdDebug() << "KoSpeaker::startKttsd: error starting KTTSD service: " << error << endl;
d->m_enabled = false;
} else
d->m_enabled = true;
} else
d->m_enabled = true;
return d->m_enabled;
}
TQString KoSpeaker::getKttsdVersion()
{
// Determine which version of KTTSD is running. Note that earlier versions of KSpeech interface
// did not support version() method, so we must manually marshall this call ourselves.
if (d->m_enabled) {
if (!d->m_versionChecked) {
DCOPClient *client = kapp->dcopClient();
TQByteArray data;
TQCString replyType;
TQByteArray replyData;
if ( client->call("kttsd", "KSpeech", "version()", data, replyType, replyData, true) ) {
TQDataStream arg(replyData, IO_ReadOnly);
arg >> d->m_kttsdVersion;
kdDebug() << "KoSpeaker::startKttsd: KTTSD version = " << d->m_kttsdVersion << endl;
}
d->m_versionChecked = true;
}
}
return d->m_kttsdVersion;
}
void KoSpeaker::sayScreenReaderOutput(const TQString &msg, const TQString &talker)
{
if (msg.isEmpty()) return;
DCOPClient *client = kapp->dcopClient();
TQByteArray data;
TQCString replyType;
TQByteArray replyData;
TQDataStream arg(data, IO_WriteOnly);
arg << msg << talker;
if ( !client->call("kttsd", "KSpeech", "sayScreenReaderOutput(TQString,TQString)",
data, replyType, replyData, true) ) {
kdDebug() << "KoSpeaker::sayScreenReaderOutput: failed" << endl;
}
}
uint KoSpeaker::setText(const TQString &text, const TQString &talker)
{
if (text.isEmpty()) return 0;
DCOPClient *client = kapp->dcopClient();
TQByteArray data;
TQCString replyType;
TQByteArray replyData;
TQDataStream arg(data, IO_WriteOnly);
arg << text << talker;
uint jobNum = 0;
if ( !client->call("kttsd", "KSpeech", "setText(TQString,TQString)",
data, replyType, replyData, true) ) {
kdDebug() << "KoSpeaker::sayText: failed" << endl;
} else {
TQDataStream arg2(replyData, IO_ReadOnly);
arg2 >> jobNum;
}
return jobNum;
}
int KoSpeaker::appendText(const TQString &text, uint jobNum /*=0*/)
{
if (text.isEmpty()) return 0;
DCOPClient *client = kapp->dcopClient();
TQByteArray data;
TQCString replyType;
TQByteArray replyData;
TQDataStream arg(data, IO_WriteOnly);
arg << text << jobNum;
int partNum = 0;
if ( !client->call("kttsd", "KSpeech", "appendText(TQString,uint)",
data, replyType, replyData, true) ) {
kdDebug() << "KoSpeaker::appendText: failed" << endl;
} else {
TQDataStream arg2(replyData, IO_ReadOnly);
arg2 >> partNum;
}
return partNum;
}
void KoSpeaker::startText(uint jobNum /*=0*/)
{
DCOPClient *client = kapp->dcopClient();
TQByteArray data;
TQCString replyType;
TQByteArray replyData;
TQDataStream arg(data, IO_WriteOnly);
arg << jobNum;
if ( !client->call("kttsd", "KSpeech", "startText(uint)",
data, replyType, replyData, true) ) {
kdDebug() << "KoSpeaker::startText: failed" << endl;
}
}
void KoSpeaker::removeText(uint jobNum /*=0*/)
{
DCOPClient *client = kapp->dcopClient();
TQByteArray data;
TQCString replyType;
TQByteArray replyData;
TQDataStream arg(data, IO_WriteOnly);
arg << jobNum;
if ( !client->call("kttsd", "KSpeech", "removeText(uint)",
data, replyType, replyData, true) ) {
kdDebug() << "KoSpeaker::removeText: failed" << endl;
}
}