qsui: improved status bar

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@9258 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 187 insertions, 0 deletions

diff --git a/src/plugins/Ui/qsui/qsuistatusbar.cpp b/src/plugins/Ui/qsui/qsuistatusbar.cpp
new file mode 100644
index 000000000..3d2afae51
--- /dev/null
+++ b/src/plugins/Ui/qsui/qsuistatusbar.cpp
@@ -0,0 +1,187 @@
+/***************************************************************************
+ *   Copyright (C) 2020 by Ilya Kotov                                      *
+ *   forkotov02@ya.ru                                                      *
+ *                                                                         *
+ *   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.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
+ ***************************************************************************/
+
+#include <QHBoxLayout>
+#include <QLabel>
+#include <QFrame>
+#include <QRegularExpression>
+#include <qmmp/soundcore.h>
+#include <qmmpui/metadataformatter.h>
+#include <qmmpui/playlistmanager.h>
+#include "qsuistatusbar.h"
+
+QSUiStatusBar::QSUiStatusBar(QWidget *parent) : QWidget(parent)
+{
+    QHBoxLayout *layout = new QHBoxLayout;
+    layout->setMargin(0);
+
+    for(int i = StatusLabel; i <= TimeLabel; ++i)
+    {
+        QLabel *label = new QLabel;
+        m_labels.insert(LabelType(i), label);
+        layout->addWidget(label);
+
+        if(i != TimeLabel)
+        {
+            QFrame *sep = new QFrame(this);
+            sep->setFrameStyle(QFrame::VLine | QFrame::Raised);
+            m_separators.insert(LabelType(i), sep);
+            layout->addWidget(sep);
+        }
+    }
+    m_labels[BitrateLabel]->setAlignment(Qt::AlignRight);
+    m_labels[TimeLabel]->setAlignment(Qt::AlignRight);
+    layout->addSpacerItem(new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Preferred));
+    setLayout(layout);
+
+    m_core = SoundCore::instance();
+    m_pl_manager = PlayListManager::instance();
+    connect(m_core, SIGNAL(stateChanged(Qmmp::State)), SLOT(onStateChanged(Qmmp::State)));
+    connect(m_core, SIGNAL(bufferingProgress(int)), SLOT(onBufferingProgress(int)));
+    connect(m_core, SIGNAL(audioParametersChanged(AudioParameters)), SLOT(onAudioParametersChanged(AudioParameters)));
+    connect(m_core, SIGNAL(bitrateChanged(int)), SLOT(onBitrateChanged(int)));
+    connect(m_core, SIGNAL(elapsedChanged(qint64)), SLOT(onElapsedChanged(qint64)));
+    onStateChanged(m_core->state());
+}
+
+void QSUiStatusBar::updatePlayListStatus()
+{
+    int tracks = m_pl_manager->currentPlayList()->trackCount();
+    qint64 duration = m_pl_manager->currentPlayList()->totalDuration();
+    m_labels[TrackCountLabel]->setText(tr("tracks: %1").arg(tracks));
+    m_labels[TotalTimeLabel]->setText(tr("total time: %1").arg(MetaDataFormatter::formatDuration(duration, false)));
+}
+
+void QSUiStatusBar::onStateChanged(Qmmp::State state)
+{
+    if(state == Qmmp::Playing || state == Qmmp::Paused)
+    {        
+        for(QLabel *label : m_labels.values())
+            label->show();
+
+        for(QFrame *sep : m_separators.values())
+            sep->show();
+
+        m_labels[BitrateLabel]->setMinimumWidth(0);
+        m_labels[BitrateLabel]->clear();
+        m_labels[TimeLabel]->setMinimumWidth(0);
+        m_labels[TimeLabel]->clear();
+
+        m_labels[StatusLabel]->setText(QString("<b>%1</b>").arg(state == Qmmp::Playing ? tr("Playing") : tr("Paused")));
+        onAudioParametersChanged(m_core->audioParameters());
+        onElapsedChanged(m_core->elapsed());
+        updatePlayListStatus();
+    }
+    else if(state == Qmmp::Buffering)
+    {
+        for(int i = SampleRateLabel; i <= TimeLabel; ++i)
+            m_labels[LabelType(i)]->hide();
+
+        for(QFrame *sep : m_separators.values())
+            sep->hide();
+
+        m_labels[StatusLabel]->show();
+    }
+    else if(state == Qmmp::Stopped)
+    {
+        for(int i = StatusLabel; i <= TimeLabel; ++i)
+        {
+            LabelType t = LabelType(i);
+            if(t == StatusLabel || t == TrackCountLabel)
+            {
+                m_labels[t]->show();
+                m_separators[t]->show();
+            }
+            else if(t == TotalTimeLabel)
+            {
+                m_labels[t]->show();
+                m_separators[t]->hide();
+            }
+            else
+            {
+                m_labels[t]->hide();
+                if(t != TimeLabel)
+                    m_separators[t]->hide();
+            }
+        }
+
+        m_labels[StatusLabel]->setText(QString("<b>%1</b>").arg(tr("Stopped")));
+        updatePlayListStatus();
+    }
+    else
+    {
+        for(int i = SampleRateLabel; i <= TimeLabel; ++i)
+            m_labels[LabelType(i)]->hide();
+
+        for(QFrame *sep : m_separators.values())
+            sep->hide();
+
+        m_labels[StatusLabel]->show();
+        m_labels[StatusLabel]->setText(QString("<b>%1</b>").arg(tr("Error")));
+        updatePlayListStatus();
+    }
+}
+
+void QSUiStatusBar::onBufferingProgress(int percent)
+{
+    if(m_core->state() == Qmmp::Buffering)
+        m_labels[StatusLabel]->setText(tr("Buffering: %1%").arg(percent));
+}
+
+void QSUiStatusBar::onAudioParametersChanged(const AudioParameters &ap)
+{
+    m_labels[SampleSizeLabel]->setText(tr("%1 bits").arg(ap.validBitsPerSample()));
+    m_labels[ChannelsLabel]->setText(tr("%1 ch").arg(ap.channels()));
+    m_labels[SampleRateLabel]->setText(tr("%1 Hz").arg(ap.sampleRate()));
+}
+
+void QSUiStatusBar::onBitrateChanged(int bitrate)
+{
+    QString text = tr("%1 kbps").arg(bitrate);
+    QLabel *label = m_labels[BitrateLabel];
+    if(text.size() > label->text().size()) //label width tuning to avoid text jumping
+    {
+        QString tmp = text;
+        tmp.replace(QRegularExpression("\\d"), "4");
+        int width = label->fontMetrics().horizontalAdvance(tmp);
+        label->setMinimumWidth(width);
+    }
+    label->setText(text);
+}
+
+void QSUiStatusBar::onElapsedChanged(qint64 elapsed)
+{
+    QString elapsedText = MetaDataFormatter::formatDuration(elapsed, false);
+    QString plDurationText;
+    QLabel *label = m_labels[TimeLabel];
+    if(m_core->duration() > 1000)
+    {
+        plDurationText.append("/");
+        plDurationText.append(MetaDataFormatter::formatDuration(m_core->duration()));
+    }
+    if((elapsedText.size() + plDurationText.size()) != label->text().size()) //label width tuning to avoid text jumping
+    {
+        QString tmp = elapsedText;
+        tmp.replace(QRegularExpression("\\d"), "4");
+        int width = label->fontMetrics().horizontalAdvance(tmp + plDurationText);
+        label->setMinimumWidth(width);
+    }
+    label->setText(elapsedText + plDurationText);
+}