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Text to speech engine - finishing

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Jakub Melka
2020-02-20 19:25:32 +01:00
parent 44889cfcb8
commit 5823df0443
4 changed files with 93 additions and 43 deletions
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47
PdfForQtViewer/pdftexttospeech.cpp
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@ -21,10 +21,12 @@
#include "pdfcompiler.h"
#include "pdfdrawwidget.h"
#include <QLabel>
#include <QAction>
#include <QSlider>
#include <QComboBox>
#include <QToolButton>
#include <QTextBrowser>
#include <QTextToSpeech>
namespace pdfviewer
@ -45,7 +47,11 @@ PDFTextToSpeech::PDFTextToSpeech(QObject* parent) :
m_speechPlayButton(nullptr),
m_speechPauseButton(nullptr),
m_speechStopButton(nullptr),
m_speechSynchronizeButton(nullptr)
m_speechSynchronizeButton(nullptr),
m_speechRateValueLabel(nullptr),
m_speechPitchValueLabel(nullptr),
m_speechVolumeValueLabel(nullptr),
m_speechActualTextBrowser(nullptr)
{
}
@ -138,7 +144,7 @@ void PDFTextToSpeech::setSettings(const PDFViewerSettings* viewerSettings)
updateUI();
}
void PDFTextToSpeech::setProxy(const pdf::PDFDrawWidgetProxy* proxy)
void PDFTextToSpeech::setProxy(pdf::PDFDrawWidgetProxy* proxy)
{
m_proxy = proxy;
pdf::PDFAsynchronousTextLayoutCompiler* compiler = m_proxy->getTextLayoutCompiler();
@ -153,7 +159,11 @@ void PDFTextToSpeech::initializeUI(QComboBox* speechLocaleComboBox,
QToolButton* speechPlayButton,
QToolButton* speechPauseButton,
QToolButton* speechStopButton,
QToolButton* speechSynchronizeButton)
QToolButton* speechSynchronizeButton,
QLabel* speechRateValueLabel,
QLabel* speechPitchValueLabel,
QLabel* speechVolumeValueLabel,
QTextBrowser* speechActualTextBrowser)
{
Q_ASSERT(speechLocaleComboBox);
Q_ASSERT(speechVoiceComboBox);
@ -174,6 +184,10 @@ void PDFTextToSpeech::initializeUI(QComboBox* speechLocaleComboBox,
m_speechPauseButton = speechPauseButton;
m_speechStopButton = speechStopButton;
m_speechSynchronizeButton = speechSynchronizeButton;
m_speechRateValueLabel = speechRateValueLabel;
m_speechPitchValueLabel = speechPitchValueLabel;
m_speechVolumeValueLabel = speechVolumeValueLabel;
m_speechActualTextBrowser = speechActualTextBrowser;
connect(m_speechLocaleComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &PDFTextToSpeech::onLocaleChanged);
connect(m_speechVoiceComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &PDFTextToSpeech::onVoiceChanged);
@ -303,18 +317,21 @@ void PDFTextToSpeech::setRate(const double rate)
{
pdf::PDFLinearInterpolation<double> interpolation(-1.0, 1.0, m_speechRateEdit->minimum(), m_speechRateEdit->maximum());
m_speechRateEdit->setValue(qRound(interpolation(rate)));
onRateChanged(m_speechRateEdit->value());
}
void PDFTextToSpeech::setPitch(const double pitch)
{
pdf::PDFLinearInterpolation<double> interpolation(-1.0, 1.0, m_speechPitchEdit->minimum(), m_speechPitchEdit->maximum());
m_speechPitchEdit->setValue(qRound(interpolation(pitch)));
onPitchChanged(m_speechPitchEdit->value());
}
void PDFTextToSpeech::setVolume(const double volume)
{
pdf::PDFLinearInterpolation<double> interpolation(0.0, 1.0, m_speechVolumeEdit->minimum(), m_speechVolumeEdit->maximum());
m_speechVolumeEdit->setValue(qRound(interpolation(volume)));
onVolumeChanged(m_speechVolumeEdit->value());
}
void PDFTextToSpeech::onLocaleChanged()
@ -345,7 +362,9 @@ void PDFTextToSpeech::onRateChanged(int rate)
if (m_textToSpeech)
{
pdf::PDFLinearInterpolation<double> interpolation(m_speechRateEdit->minimum(), m_speechRateEdit->maximum(), -1.0, 1.0);
m_textToSpeech->setRate(interpolation(rate));
double value = interpolation(rate);
m_textToSpeech->setRate(value);
m_speechRateValueLabel->setText(QString::number(value, 'f', 2));
}
}
@ -354,7 +373,9 @@ void PDFTextToSpeech::onPitchChanged(int pitch)
if (m_textToSpeech)
{
pdf::PDFLinearInterpolation<double> interpolation(m_speechPitchEdit->minimum(), m_speechPitchEdit->maximum(), -1.0, 1.0);
m_textToSpeech->setPitch(interpolation(pitch));
double value = interpolation(pitch);
m_textToSpeech->setPitch(pitch);
m_speechPitchValueLabel->setText(QString::number(value, 'f', 2));
}
}
@ -363,7 +384,9 @@ void PDFTextToSpeech::onVolumeChanged(int volume)
if (m_textToSpeech)
{
pdf::PDFLinearInterpolation<double> interpolation(m_speechVolumeEdit->minimum(), m_speechVolumeEdit->maximum(), 0.0, 1.0);
m_textToSpeech->setVolume(interpolation(volume));
double value = interpolation(volume);
m_textToSpeech->setVolume(value);
m_speechVolumeValueLabel->setText(QString::number(value, 'f', 2));
}
}
@ -375,7 +398,10 @@ void PDFTextToSpeech::onPlayClicked()
{
m_textToSpeech->resume();
m_state = Playing;
updatePlay();
if (m_textToSpeech->state() == QTextToSpeech::Ready)
{
updatePlay();
}
break;
}
@ -452,6 +478,7 @@ void PDFTextToSpeech::updatePlay()
const pdf::PDFTextFlow& textFlow = m_textFlows[m_currentTextFlowIndex];
QString text = textFlow.getText();
m_textToSpeech->say(text);
m_speechActualTextBrowser->setText(text);
}
else
{
@ -480,6 +507,7 @@ void PDFTextToSpeech::updateToNextPage(pdf::PDFInteger pageIndex)
m_currentTextLayout = pdf::PDFTextLayout();
m_textFlows.clear();
m_speechActualTextBrowser->clear();
// Find first nonempty page
while (m_currentPage < pageCount)
@ -495,6 +523,11 @@ void PDFTextToSpeech::updateToNextPage(pdf::PDFInteger pageIndex)
++m_currentPage;
}
if (m_currentPage < pageCount && m_speechSynchronizeButton->isChecked())
{
m_proxy->goToPage(m_currentPage);
}
m_currentTextFlowIndex = 0;
}