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Extract FloatModelEditorBase
Extract a base component to edit float model data. It was created as follows: * Create a copy of the class `Knob` * Rename the copy to `FloatModelEditorBase` * Make some small adjustments so that it compiles * Remove all code that's directly related to knob functionality (knob specific rendering code, properties, members, etc.) The new class `FloatModelEditorBase` implements some very basic painting code that should be overridden by all inheriting classes. It also contains lots of shared event handling code, e.g. to edit values with a dialog, to show a context menu, etc. It is intended to become a shared base class between `Knob` and `BarModelEditor`.
This commit is contained in:
Michael Gregorius
117
include/FloatModelEditorBase.h
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117
include/FloatModelEditorBase.h
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@@ -0,0 +1,117 @@
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/*
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* FloatModelEditorBase.h - Base editor for float models
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*
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* Copyright (c) 2004-2008 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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* Copyright (c) 2023 Michael Gregorius
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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 LMMS_GUI_FLOAT_MODEL_EDITOR_BASE_H
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#define LMMS_GUI_FLOAT_MODEL_EDITOR_BASE_H
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#include <QWidget>
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#include <QPoint>
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#include "AutomatableModelView.h"
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class QPixmap;
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namespace lmms::gui
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{
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class SimpleTextFloat;
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void convertPixmapToGrayScaleTemp(QPixmap &pixMap);
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class LMMS_EXPORT FloatModelEditorBase : public QWidget, public FloatModelView
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{
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Q_OBJECT
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mapPropertyFromModel(bool,isVolumeKnob,setVolumeKnob,m_volumeKnob);
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mapPropertyFromModel(float,volumeRatio,setVolumeRatio,m_volumeRatio);
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void initUi( const QString & _name ); //!< to be called by ctors
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public:
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FloatModelEditorBase( QWidget * _parent = nullptr, const QString & _name = QString() ); //!< default ctor
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FloatModelEditorBase( const FloatModelEditorBase& other ) = delete;
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// TODO: remove
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inline void setHintText( const QString & _txt_before,
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const QString & _txt_after )
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{
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setDescription( _txt_before );
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setUnit( _txt_after );
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}
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signals:
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void sliderPressed();
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void sliderReleased();
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void sliderMoved( float value );
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protected:
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void contextMenuEvent( QContextMenuEvent * _me ) override;
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void dragEnterEvent( QDragEnterEvent * _dee ) override;
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void dropEvent( QDropEvent * _de ) override;
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void focusOutEvent( QFocusEvent * _fe ) override;
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void mousePressEvent( QMouseEvent * _me ) override;
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void mouseReleaseEvent( QMouseEvent * _me ) override;
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void mouseMoveEvent( QMouseEvent * _me ) override;
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void mouseDoubleClickEvent( QMouseEvent * _me ) override;
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void paintEvent( QPaintEvent * _me ) override;
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void wheelEvent( QWheelEvent * _me ) override;
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virtual float getValue( const QPoint & _p );
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private slots:
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virtual void enterValue();
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void friendlyUpdate();
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void toggleScale();
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private:
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virtual QString displayValue() const;
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void doConnections() override;
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void setPosition( const QPoint & _p );
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inline float pageSize() const
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{
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return ( model()->maxValue() - model()->minValue() ) / 100.0f;
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}
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static SimpleTextFloat * s_textFloat;
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BoolModel m_volumeKnob;
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FloatModel m_volumeRatio;
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QPoint m_lastMousePos; //!< mouse position in last mouseMoveEvent
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float m_leftOver;
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bool m_buttonPressed;
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};
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} // namespace lmms::gui
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#endif // LMMS_GUI_FLOAT_MODEL_EDITOR_BASE_H
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@@ -101,6 +101,7 @@ SET(LMMS_SRCS
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gui/widgets/ComboBox.cpp
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gui/widgets/CustomTextKnob.cpp
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gui/widgets/Fader.cpp
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gui/widgets/FloatModelEditorBase.cpp
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gui/widgets/Graph.cpp
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gui/widgets/GroupBox.cpp
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gui/widgets/Knob.cpp
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@@ -31,6 +31,8 @@
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#include "LadspaBase.h"
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#include "BarModelEditor.h"
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// TODO Only for testing! Remove!
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#include "FloatModelEditorBase.h"
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#include "LedCheckBox.h"
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#include "TempoSyncKnob.h"
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@@ -65,7 +67,14 @@ QWidget * LadspaWidgetFactory::createWidget(LadspaControl * ladspaControl, QWidg
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knob->setModel(ladspaControl->knobModel());
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knob->setLabel(name);
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break;*/
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return new BarModelEditor(name, ladspaControl->knobModel(), parent);
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{
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FloatModelEditorBase * fme = new FloatModelEditorBase(parent, name);
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fme->setModel(ladspaControl->knobModel());
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fme->setHintText(QObject::tr("Value:"), "");
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return fme;
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}
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// FloatModelEditorBase
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//return new BarModelEditor(name, ladspaControl->knobModel(), parent);
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case TIME:
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knob = new TempoSyncKnob(knobBright_26, parent, name);
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447
src/gui/widgets/FloatModelEditorBase.cpp
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447
src/gui/widgets/FloatModelEditorBase.cpp
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@@ -0,0 +1,447 @@
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/*
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* FloatModelEditorBase.cpp - Base editor for float models
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*
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* Copyright (c) 2004-2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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* Copyright (c) 2023 Michael Gregorius
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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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#include "FloatModelEditorBase.h"
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#include <QApplication>
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#include <QInputDialog>
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#include <QMouseEvent>
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#include <QPainter>
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#ifndef __USE_XOPEN
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#define __USE_XOPEN
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#endif
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#include "lmms_math.h"
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#include "CaptionMenu.h"
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#include "ConfigManager.h"
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#include "ControllerConnection.h"
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#include "GuiApplication.h"
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#include "LocaleHelper.h"
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#include "MainWindow.h"
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#include "ProjectJournal.h"
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#include "SimpleTextFloat.h"
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#include "StringPairDrag.h"
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namespace lmms::gui
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{
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SimpleTextFloat * FloatModelEditorBase::s_textFloat = nullptr;
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FloatModelEditorBase::FloatModelEditorBase(QWidget * _parent, const QString & _name ) :
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QWidget( _parent ),
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FloatModelView( new FloatModel( 0, 0, 0, 1, nullptr, _name, true ), this ),
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m_volumeKnob( false ),
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m_volumeRatio( 100.0, 0.0, 1000000.0 ),
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m_buttonPressed( false )
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{
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initUi( _name );
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}
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void FloatModelEditorBase::initUi( const QString & _name )
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{
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if( s_textFloat == nullptr )
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{
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s_textFloat = new SimpleTextFloat;
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}
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setWindowTitle( _name );
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setFocusPolicy( Qt::ClickFocus );
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doConnections();
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}
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float FloatModelEditorBase::getValue( const QPoint & _p )
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{
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float value;
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// knob value increase is linear to mouse movement
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value = .4f * _p.y();
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// if shift pressed we want slower movement
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if( getGUI()->mainWindow()->isShiftPressed() )
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{
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value /= 4.0f;
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value = qBound( -4.0f, value, 4.0f );
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}
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return value * pageSize();
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}
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void FloatModelEditorBase::contextMenuEvent( QContextMenuEvent * )
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{
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// for the case, the user clicked right while pressing left mouse-
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// button, the context-menu appears while mouse-cursor is still hidden
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// and it isn't shown again until user does something which causes
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// an QApplication::restoreOverrideCursor()-call...
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mouseReleaseEvent( nullptr );
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CaptionMenu contextMenu( model()->displayName(), this );
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addDefaultActions( &contextMenu );
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contextMenu.addAction( QPixmap(),
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model()->isScaleLogarithmic() ? tr( "Set linear" ) : tr( "Set logarithmic" ),
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this, SLOT(toggleScale()));
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contextMenu.addSeparator();
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contextMenu.exec( QCursor::pos() );
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}
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void FloatModelEditorBase::toggleScale()
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{
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model()->setScaleLogarithmic( ! model()->isScaleLogarithmic() );
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update();
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}
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void FloatModelEditorBase::dragEnterEvent( QDragEnterEvent * _dee )
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{
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StringPairDrag::processDragEnterEvent( _dee, "float_value,"
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"automatable_model" );
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}
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void FloatModelEditorBase::dropEvent( QDropEvent * _de )
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{
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QString type = StringPairDrag::decodeKey( _de );
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QString val = StringPairDrag::decodeValue( _de );
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if( type == "float_value" )
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{
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model()->setValue( LocaleHelper::toFloat(val) );
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_de->accept();
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}
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else if( type == "automatable_model" )
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{
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auto mod = dynamic_cast<AutomatableModel*>(Engine::projectJournal()->journallingObject(val.toInt()));
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if( mod != nullptr )
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{
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AutomatableModel::linkModels( model(), mod );
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mod->setValue( model()->value() );
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}
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}
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}
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void FloatModelEditorBase::mousePressEvent( QMouseEvent * _me )
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{
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if( _me->button() == Qt::LeftButton &&
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! ( _me->modifiers() & Qt::ControlModifier ) &&
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! ( _me->modifiers() & Qt::ShiftModifier ) )
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{
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AutomatableModel *thisModel = model();
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if( thisModel )
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{
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thisModel->addJournalCheckPoint();
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thisModel->saveJournallingState( false );
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}
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const QPoint & p = _me->pos();
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m_lastMousePos = p;
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m_leftOver = 0.0f;
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emit sliderPressed();
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s_textFloat->setText( displayValue() );
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s_textFloat->moveGlobal( this,
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QPoint( width() + 2, 0 ) );
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s_textFloat->show();
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m_buttonPressed = true;
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}
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else if( _me->button() == Qt::LeftButton &&
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(_me->modifiers() & Qt::ShiftModifier) )
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{
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new StringPairDrag( "float_value",
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QString::number( model()->value() ),
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QPixmap(), this );
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}
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else
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{
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FloatModelView::mousePressEvent( _me );
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}
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}
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void FloatModelEditorBase::mouseMoveEvent( QMouseEvent * _me )
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{
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if( m_buttonPressed && _me->pos() != m_lastMousePos )
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{
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// knob position is changed depending on last mouse position
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setPosition( _me->pos() - m_lastMousePos );
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emit sliderMoved( model()->value() );
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// original position for next time is current position
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m_lastMousePos = _me->pos();
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}
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s_textFloat->setText( displayValue() );
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}
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void FloatModelEditorBase::mouseReleaseEvent( QMouseEvent* event )
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{
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if( event && event->button() == Qt::LeftButton )
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{
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AutomatableModel *thisModel = model();
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if( thisModel )
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{
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thisModel->restoreJournallingState();
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}
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}
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m_buttonPressed = false;
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emit sliderReleased();
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QApplication::restoreOverrideCursor();
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s_textFloat->hide();
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}
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void FloatModelEditorBase::focusOutEvent( QFocusEvent * _fe )
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{
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// make sure we don't loose mouse release event
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mouseReleaseEvent( nullptr );
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QWidget::focusOutEvent( _fe );
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}
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void FloatModelEditorBase::mouseDoubleClickEvent( QMouseEvent * )
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{
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enterValue();
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}
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void FloatModelEditorBase::paintEvent( QPaintEvent * _me )
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{
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QPainter p(this);
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QColor const foreground(3, 94, 97);
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auto const * mod = model();
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auto const minValue = mod->minValue();
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auto const maxValue = mod->maxValue();
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auto const range = maxValue - minValue;
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// Compute the percentage
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// min + x * (max - min) = v <=> x = (v - min) / (max - min)
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auto const percentage = range == 0 ? 1. : (mod->value() - minValue) / range;
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QRect r = rect();
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p.setPen(foreground);
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p.setBrush(foreground);
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p.drawRect(QRect(r.topLeft(), QPoint(r.width() * percentage, r.height())));
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}
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void FloatModelEditorBase::wheelEvent(QWheelEvent * we)
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{
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we->accept();
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const float stepMult = model()->range() / 2000 / model()->step<float>();
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const int inc = ((we->angleDelta().y() > 0 ) ? 1 : -1) * ((stepMult < 1 ) ? 1 : stepMult);
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model()->incValue( inc );
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s_textFloat->setText( displayValue() );
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s_textFloat->moveGlobal( this, QPoint( width() + 2, 0 ) );
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s_textFloat->setVisibilityTimeOut( 1000 );
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emit sliderMoved( model()->value() );
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}
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void FloatModelEditorBase::setPosition( const QPoint & _p )
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{
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const float value = getValue( _p ) + m_leftOver;
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const auto step = model()->step<float>();
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const float oldValue = model()->value();
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if( model()->isScaleLogarithmic() ) // logarithmic code
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{
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const float pos = model()->minValue() < 0
|
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? oldValue / qMax( qAbs( model()->maxValue() ), qAbs( model()->minValue() ) )
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: ( oldValue - model()->minValue() ) / model()->range();
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const float ratio = 0.1f + qAbs( pos ) * 15.f;
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float newValue = value * ratio;
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if( qAbs( newValue ) >= step )
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{
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float roundedValue = qRound( ( oldValue - value ) / step ) * step;
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model()->setValue( roundedValue );
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m_leftOver = 0.0f;
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}
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else
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{
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m_leftOver = value;
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}
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}
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else // linear code
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{
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if( qAbs( value ) >= step )
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{
|
||||
float roundedValue = qRound( ( oldValue - value ) / step ) * step;
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model()->setValue( roundedValue );
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m_leftOver = 0.0f;
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||||
}
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||||
else
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||||
{
|
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m_leftOver = value;
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||||
}
|
||||
}
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||||
}
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||||
|
||||
|
||||
|
||||
|
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void FloatModelEditorBase::enterValue()
|
||||
{
|
||||
bool ok;
|
||||
float new_val;
|
||||
|
||||
if( isVolumeKnob() &&
|
||||
ConfigManager::inst()->value( "app", "displaydbfs" ).toInt() )
|
||||
{
|
||||
new_val = QInputDialog::getDouble(
|
||||
this, tr( "Set value" ),
|
||||
tr( "Please enter a new value between "
|
||||
"-96.0 dBFS and 6.0 dBFS:" ),
|
||||
ampToDbfs( model()->getRoundedValue() / 100.0 ),
|
||||
-96.0, 6.0, model()->getDigitCount(), &ok );
|
||||
if( new_val <= -96.0 )
|
||||
{
|
||||
new_val = 0.0f;
|
||||
}
|
||||
else
|
||||
{
|
||||
new_val = dbfsToAmp( new_val ) * 100.0;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
new_val = QInputDialog::getDouble(
|
||||
this, tr( "Set value" ),
|
||||
tr( "Please enter a new value between "
|
||||
"%1 and %2:" ).
|
||||
arg( model()->minValue() ).
|
||||
arg( model()->maxValue() ),
|
||||
model()->getRoundedValue(),
|
||||
model()->minValue(),
|
||||
model()->maxValue(), model()->getDigitCount(), &ok );
|
||||
}
|
||||
|
||||
if( ok )
|
||||
{
|
||||
model()->setValue( new_val );
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
void FloatModelEditorBase::friendlyUpdate()
|
||||
{
|
||||
if (model() && (model()->controllerConnection() == nullptr ||
|
||||
model()->controllerConnection()->getController()->frequentUpdates() == false ||
|
||||
Controller::runningFrames() % (256*4) == 0))
|
||||
{
|
||||
update();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
QString FloatModelEditorBase::displayValue() const
|
||||
{
|
||||
if( isVolumeKnob() &&
|
||||
ConfigManager::inst()->value( "app", "displaydbfs" ).toInt() )
|
||||
{
|
||||
return m_description.trimmed() + QString( " %1 dBFS" ).
|
||||
arg( ampToDbfs( model()->getRoundedValue() / volumeRatio() ),
|
||||
3, 'f', 2 );
|
||||
}
|
||||
return m_description.trimmed() + QString( " %1" ).
|
||||
arg( model()->getRoundedValue() ) + m_unit;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
void FloatModelEditorBase::doConnections()
|
||||
{
|
||||
if( model() != nullptr )
|
||||
{
|
||||
QObject::connect( model(), SIGNAL(dataChanged()),
|
||||
this, SLOT(friendlyUpdate()));
|
||||
|
||||
QObject::connect( model(), SIGNAL(propertiesChanged()),
|
||||
this, SLOT(update()));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void convertPixmapToGrayScaleTemp(QPixmap& pixMap)
|
||||
{
|
||||
QImage temp = pixMap.toImage().convertToFormat(QImage::Format_ARGB32);
|
||||
for (int i = 0; i < temp.height(); ++i)
|
||||
{
|
||||
for (int j = 0; j < temp.width(); ++j)
|
||||
{
|
||||
const auto pix = temp.pixelColor(i, j);
|
||||
const auto gscale = 0.2126 * pix.redF() + 0.7152 * pix.greenF() + 0.0722 * pix.blueF();
|
||||
const auto pixGray = QColor::fromRgbF(gscale, gscale, gscale, pix.alphaF());
|
||||
temp.setPixelColor(i, j, pixGray);
|
||||
}
|
||||
}
|
||||
pixMap.convertFromImage(temp);
|
||||
}
|
||||
|
||||
|
||||
} // namespace lmms::gui
|
||||
Reference in New Issue
Block a user