Chris@416: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@416: 
Chris@416: /*
Chris@416:     Sonic Visualiser
Chris@416:     An audio file viewer and annotation editor.
Chris@416:     Centre for Digital Music, Queen Mary, University of London.
Chris@416:     This file copyright 2008 QMUL.
Chris@416:     
Chris@416:     This program is free software; you can redistribute it and/or
Chris@416:     modify it under the terms of the GNU General Public License as
Chris@416:     published by the Free Software Foundation; either version 2 of the
Chris@416:     License, or (at your option) any later version.  See the file
Chris@416:     COPYING included with this distribution for more information.
Chris@416: */
Chris@416: 
Chris@416: #include "TransformFinder.h"
Chris@416: 
Chris@416: #include "transform/TransformFactory.h"
Chris@416: 
Chris@419: #include <QGridLayout>
Chris@416: #include <QGridLayout>
Chris@416: #include <QLineEdit>
Chris@416: #include <QLabel>
Chris@419: //#include <SelectableLabel>
Chris@416: #include <QDialogButtonBox>
Chris@416: #include <QScrollArea>
Chris@416: 
Chris@420: SelectableLabel::SelectableLabel(QWidget *parent) :
Chris@420:     QLabel(parent),
Chris@420:     m_selected(false)
Chris@420: {
Chris@420:     setTextFormat(Qt::RichText);
Chris@420:     setLineWidth(2);
Chris@420:     setFixedWidth(420);
Chris@420:     setWordWrap(true);
Chris@420: }
Chris@420: 
Chris@419: void
Chris@419: SelectableLabel::setUnselectedText(QString text)
Chris@419: {
Chris@420:     m_unselectedText = text;
Chris@420:     if (!m_selected) {
Chris@420:         setText(m_unselectedText);
Chris@420:         resize(sizeHint());
Chris@420:     }
Chris@419: }
Chris@419: 
Chris@419: void
Chris@419: SelectableLabel::setSelectedText(QString text)
Chris@419: {
Chris@420:     m_selectedText = text;
Chris@420:     if (m_selected) {
Chris@420:         setText(m_selectedText);
Chris@420:         resize(sizeHint());
Chris@420:     }
Chris@420: }
Chris@420: 
Chris@420: void
Chris@420: SelectableLabel::setSelected(bool s)
Chris@420: {
Chris@420:     if (m_selected == s) return;
Chris@420:     m_selected = s;
Chris@420:     if (m_selected) {
Chris@420:         setText(m_selectedText);
Chris@420:         setFrameStyle(QFrame::Box | QFrame::Plain);
Chris@420:     } else {
Chris@420:         setText(m_unselectedText);
Chris@420:         setFrameStyle(QFrame::NoFrame);
Chris@420:     }
Chris@420:     resize(sizeHint());
Chris@420:     parentWidget()->resize(parentWidget()->sizeHint());
Chris@420: }
Chris@420: 
Chris@420: void
Chris@420: SelectableLabel::toggle()
Chris@420: {
Chris@420:     setSelected(!m_selected);
Chris@419: }
Chris@419: 
Chris@419: void
Chris@419: SelectableLabel::mousePressEvent(QMouseEvent *e)
Chris@419: {
Chris@420:     toggle();
Chris@420:     emit selectionChanged();
Chris@419: }
Chris@419: 
Chris@416: TransformFinder::TransformFinder(QWidget *parent) :
Chris@417:     QDialog(parent),
Chris@417:     m_resultsFrame(0),
Chris@417:     m_resultsLayout(0)
Chris@416: {
Chris@416:     setWindowTitle(tr("Find a Transform"));
Chris@416:     
Chris@416:     QGridLayout *mainGrid = new QGridLayout;
Chris@416:     setLayout(mainGrid);
Chris@416: 
Chris@416:     mainGrid->addWidget(new QLabel(tr("Find:")), 0, 0);
Chris@416:     
Chris@416:     QLineEdit *searchField = new QLineEdit;
Chris@416:     mainGrid->addWidget(searchField, 0, 1);
Chris@416:     connect(searchField, SIGNAL(textChanged(const QString &)),
Chris@416:             this, SLOT(searchTextChanged(const QString &)));
Chris@416: 
Chris@416:     m_resultsScroll = new QScrollArea;
Chris@420: //    m_resultsScroll->setWidgetResizable(true);
Chris@416:     mainGrid->addWidget(m_resultsScroll, 1, 0, 1, 2);
Chris@416:     mainGrid->setRowStretch(1, 10);
Chris@416: 
Chris@416:     QDialogButtonBox *bb = new QDialogButtonBox(QDialogButtonBox::Ok |
Chris@416:                                                 QDialogButtonBox::Cancel);
Chris@416:     mainGrid->addWidget(bb, 2, 0, 1, 2);
Chris@416:     connect(bb, SIGNAL(accepted()), this, SLOT(accept()));
Chris@416:     connect(bb, SIGNAL(rejected()), this, SLOT(reject()));
Chris@416: 
Chris@416:     resize(500, 400); //!!!
Chris@416: }
Chris@416: 
Chris@416: TransformFinder::~TransformFinder()
Chris@416: {
Chris@416: }
Chris@416: 
Chris@416: void
Chris@416: TransformFinder::searchTextChanged(const QString &text)
Chris@416: {
Chris@416:     std::cerr << "text is " << text.toStdString() << std::endl;
Chris@416: 
Chris@416:     QStringList keywords = text.split(' ', QString::SkipEmptyParts);
Chris@416:     TransformFactory::SearchResults results =
Chris@416:         TransformFactory::getInstance()->search(keywords);
Chris@416:     
Chris@416:     std::cerr << results.size() << " result(s)..." << std::endl;
Chris@416: 
Chris@416:     std::set<TransformFactory::Match> sorted;
Chris@416:     for (TransformFactory::SearchResults::const_iterator j = results.begin();
Chris@416:          j != results.end(); ++j) {
Chris@416:         sorted.insert(j->second);
Chris@416:     }
Chris@416: 
Chris@416:     int i = 0;
Chris@416: /*
Chris@416:     for (std::set<TransformFactory::Match>::const_iterator j = sorted.begin();
Chris@416:          j != sorted.end(); ++j) {
Chris@416:         std::cerr << i++ << ": " << j->transform.toStdString() << ": ";
Chris@416:         for (TransformFactory::Match::FragmentMap::const_iterator k =
Chris@416:                  j->fragments.begin();
Chris@416:              k != j->fragments.end(); ++k) {
Chris@416:             std::cerr << k->first.toStdString() << ": "
Chris@416:                       << k->second.toStdString() << " ";
Chris@416:         }
Chris@416:         std::cerr << "(" << j->score << ")" << std::endl;
Chris@416:     }
Chris@416: */
Chris@417: 
Chris@417:     if (!m_resultsLayout) {
Chris@417:         std::cerr << "creating frame & layout" << std::endl;
Chris@417:         m_resultsFrame = new QWidget;
Chris@417: //        resultsFrame->setFrameStyle(QFrame::Sunken | QFrame::Box);
Chris@419:         m_resultsLayout = new QGridLayout;
Chris@417:         m_resultsFrame->setLayout(m_resultsLayout);
Chris@417:         m_resultsScroll->setWidget(m_resultsFrame);
Chris@417:         m_resultsFrame->show();
Chris@417:     }
Chris@416: 
Chris@416:     i = 0;
Chris@416:     int maxResults = 40;
Chris@417:     int height = 0;
Chris@417:     int width = 0;
Chris@416: 
Chris@420:     if (sorted.empty()) m_selectedTransform = "";
Chris@420: 
Chris@416:     for (std::set<TransformFactory::Match>::const_iterator j = sorted.end();
Chris@416:          j != sorted.begin(); ) {
Chris@416:         --j;
Chris@417: 
Chris@416:         TransformDescription desc =
Chris@416:             TransformFactory::getInstance()->getTransformDescription(j->transform);
Chris@419: 
Chris@419:         QString labelText;
Chris@416:         labelText += tr("%2<br><small>").arg(desc.name);
Chris@416:         labelText += "...";
Chris@416:         for (TransformFactory::Match::FragmentMap::const_iterator k =
Chris@416:                  j->fragments.begin();
Chris@416:              k != j->fragments.end(); ++k) {
Chris@416:             labelText += k->second;
Chris@416:             labelText += "... ";
Chris@416:         }
Chris@416:         labelText += tr("</small>");
Chris@417: 
Chris@419:         QString selectedText;
Chris@419:         selectedText += tr("<b>%1</b><br>").arg(desc.name);
Chris@420:         selectedText += tr("<small>%1</small>").arg(desc.longDescription);
Chris@419: /*
Chris@419:         for (TransformFactory::Match::FragmentMap::const_iterator k =
Chris@419:                  j->fragments.begin();
Chris@419:              k != j->fragments.end(); ++k) {
Chris@419:             selectedText += tr("<br><small>%1: %2</small>").arg(k->first).arg(k->second);
Chris@419:         }
Chris@419: */
Chris@419: 
Chris@420:         selectedText += tr("<ul><small>");
Chris@420:         selectedText += tr("<li>Plugin type: %1</li>").arg(desc.type);
Chris@420:         selectedText += tr("<li>Category: %1</li>").arg(desc.category);
Chris@420:         selectedText += tr("<li>System identifier: %1</li>").arg(desc.identifier);
Chris@420:         selectedText += tr("</small></ul>");
Chris@419: 
Chris@417:         if (i >= m_labels.size()) {
Chris@419:             SelectableLabel *label = new SelectableLabel(m_resultsFrame);
Chris@419:             m_resultsLayout->addWidget(label, i, 0);
Chris@420:             connect(label, SIGNAL(selectionChanged()), this,
Chris@420:                     SLOT(selectedLabelChanged()));
Chris@417:             m_labels.push_back(label);
Chris@417:         }
Chris@420:         
Chris@420:         m_labels[i]->setObjectName(desc.identifier);
Chris@420:         m_selectedTransform = desc.identifier;
Chris@419:         m_labels[i]->setUnselectedText(labelText);
Chris@419:         m_labels[i]->setSelectedText(selectedText);
Chris@420:         m_labels[i]->setSelected(i == 0);
Chris@419: 
Chris@419: /*
Chris@417:         QSize sh = m_labels[i]->sizeHint();
Chris@417:         std::cerr << "size hint for text \"" << labelText.toStdString() << "\" has height " << sh.height() << std::endl;
Chris@417:         height += sh.height();
Chris@417:         if (sh.width() > width) width = sh.width();
Chris@419: */
Chris@419: //        m_labels[i]->resize(m_labels[i]->sizeHint());
Chris@419: //        m_labels[i]->updateGeometry();
Chris@417:         m_labels[i]->show();
Chris@417: 
Chris@416:         if (++i == maxResults) break;
Chris@416:     }
Chris@416: 
Chris@417:     std::cerr << "m_labels.size() = " << m_labels.size() << ", i = " << i << ", height = " << height << std::endl;
Chris@417: 
Chris@419:     for (int j = m_labels.size(); j > i; ) m_labels[--j]->hide();
Chris@417: 
Chris@419:     m_resultsFrame->resize(m_resultsFrame->sizeHint());
Chris@419: //    m_resultsFrame->resize(height, width);
Chris@416: }
Chris@416: 
Chris@420: void
Chris@420: TransformFinder::selectedLabelChanged()
Chris@420: {
Chris@420:     QObject *s = sender();
Chris@420:     m_selectedTransform = "";
Chris@420:     for (int i = 0; i < m_labels.size(); ++i) {
Chris@420:         if (!m_labels[i]->isVisible()) continue;
Chris@420:         if (m_labels[i] == s) {
Chris@420:             if (m_labels[i]->isSelected()) {
Chris@420:                 m_selectedTransform = m_labels[i]->objectName();
Chris@420:             }
Chris@420:         } else {
Chris@420:             if (m_labels[i]->isSelected()) {
Chris@420:                 m_labels[i]->setSelected(false);
Chris@420:             }
Chris@420:         }
Chris@420:     }
Chris@420:     std::cerr << "selectedLabelChanged: selected transform is now \""
Chris@420:               << m_selectedTransform.toStdString() << "\"" << std::endl;
Chris@420: }
Chris@420: 
Chris@416: TransformId
Chris@416: TransformFinder::getTransform() const
Chris@416: {
Chris@416:     return "";
Chris@416: }
Chris@416: