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042f8ac325
Add peak indicators to the mixer strips. They show the maximum peak value that was observed and can be reset by clicking on them. ## Implementation details The implementation works via a signal/slot mechanism. The `Fader` class has a new signal `peakChanged` which reports peak values as amplifications. A new class `PeakIndicator` is added which has a slot `updatePeak` which is connected to the new signal in `Fader`. The `PeakIndicator` inherits from `QLabel` and mainly deals with updating the label text from the current peak value. Add a `PeakIndicator` instance to `MixerChannelView`. Add a `reset` method to `MixerChannelView` so that the mixer channel can be reset on the loading of new projects, etc. The current implementation resets the peak indicator back to -inf dbFS. The `reset` method is called in `MixerView::clear`. Remove the clamping in `Fader::setPeak` so that all peaks are reported. Emit the new signal if the peak changes.
144 lines
4.5 KiB
C++
144 lines
4.5 KiB
C++
/*
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* MixerChannelView.h - the mixer channel view
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*
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* Copyright (c) 2022 saker <sakertooth@gmail.com>
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*
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* This file is part of LMMS - https://lmms.io
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef MIXER_CHANNEL_VIEW_H
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#define MIXER_CHANNEL_VIEW_H
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#include "EffectRackView.h"
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#include "Fader.h"
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#include "Knob.h"
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#include "LcdWidget.h"
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#include "PixmapButton.h"
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#include "SendButtonIndicator.h"
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#include <QGraphicsView>
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#include <QLabel>
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#include <QLineEdit>
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#include <QPixmap>
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#include <QWidget>
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namespace lmms
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{
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class MixerChannel;
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}
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namespace lmms::gui
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{
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class PeakIndicator;
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constexpr int MIXER_CHANNEL_INNER_BORDER_SIZE = 3;
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constexpr int MIXER_CHANNEL_OUTER_BORDER_SIZE = 1;
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class MixerChannelView : public QWidget
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{
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Q_OBJECT
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Q_PROPERTY(QBrush backgroundActive READ backgroundActive WRITE setBackgroundActive)
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Q_PROPERTY(QColor strokeOuterActive READ strokeOuterActive WRITE setStrokeOuterActive)
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Q_PROPERTY(QColor strokeOuterInactive READ strokeOuterInactive WRITE setStrokeOuterInactive)
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Q_PROPERTY(QColor strokeInnerActive READ strokeInnerActive WRITE setStrokeInnerActive)
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Q_PROPERTY(QColor strokeInnerInactive READ strokeInnerInactive WRITE setStrokeInnerInactive)
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public:
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enum class SendReceiveState
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{
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None, SendToThis, ReceiveFromThis
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};
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MixerChannelView(QWidget* parent, MixerView* mixerView, int channelIndex);
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void paintEvent(QPaintEvent* event) override;
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void contextMenuEvent(QContextMenuEvent*) override;
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void mousePressEvent(QMouseEvent*) override;
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void mouseDoubleClickEvent(QMouseEvent*) override;
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bool eventFilter(QObject* dist, QEvent* event) override;
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int channelIndex() const;
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void setChannelIndex(int index);
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SendReceiveState sendReceiveState() const;
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void setSendReceiveState(const SendReceiveState& state);
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QBrush backgroundActive() const;
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void setBackgroundActive(const QBrush& c);
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QColor strokeOuterActive() const;
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void setStrokeOuterActive(const QColor& c);
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QColor strokeOuterInactive() const;
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void setStrokeOuterInactive(const QColor& c);
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QColor strokeInnerActive() const;
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void setStrokeInnerActive(const QColor& c);
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QColor strokeInnerInactive() const;
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void setStrokeInnerInactive(const QColor& c);
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void reset();
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public slots:
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void renameChannel();
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void resetColor();
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void selectColor();
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void randomizeColor();
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private slots:
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void renameFinished();
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void removeChannel();
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void removeUnusedChannels();
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void moveChannelLeft();
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void moveChannelRight();
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private:
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bool confirmRemoval(int index);
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QString elideName(const QString& name);
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MixerChannel* mixerChannel() const;
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auto isMasterChannel() const -> bool { return m_channelIndex == 0; }
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private:
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SendButtonIndicator* m_sendButton;
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Knob* m_sendKnob;
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LcdWidget* m_channelNumberLcd;
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QLineEdit* m_renameLineEdit;
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QGraphicsView* m_renameLineEditView;
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QLabel* m_sendArrow;
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QLabel* m_receiveArrow;
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PixmapButton* m_muteButton;
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PixmapButton* m_soloButton;
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PeakIndicator* m_peakIndicator = nullptr;
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Fader* m_fader;
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EffectRackView* m_effectRackView;
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MixerView* m_mixerView;
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SendReceiveState m_sendReceiveState = SendReceiveState::None;
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int m_channelIndex = 0;
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bool m_inRename = false;
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QBrush m_backgroundActive;
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QColor m_strokeOuterActive;
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QColor m_strokeOuterInactive;
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QColor m_strokeInnerActive;
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QColor m_strokeInnerInactive;
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friend class MixerView;
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};
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} // namespace lmms::gui
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#endif |