Clementine-audio-player-Mac.../src/moodbar/moodbarproxystyle.h

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/* This file is part of Clementine.
Copyright 2012, David Sansome <me@davidsansome.com>
Clementine 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 3 of the License, or
(at your option) any later version.
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MOODBARPROXYSTYLE_H
#define MOODBARPROXYSTYLE_H
#include "moodbarrenderer.h"
#include <QProxyStyle>
class Application;
class QActionGroup;
class QMenu;
class QSlider;
class QStyleOptionSlider;
class QTimeLine;
class MoodbarProxyStyle : public QProxyStyle {
Q_OBJECT
public:
MoodbarProxyStyle(Application* app, QSlider* slider);
// QProxyStyle
void drawComplexControl(ComplexControl control, const QStyleOptionComplex* option,
QPainter* painter, const QWidget* widget) const;
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QRect subControlRect(ComplexControl cc, const QStyleOptionComplex* opt,
SubControl sc, const QWidget* widget) const;
// QObject
bool eventFilter(QObject* object, QEvent* event);
public slots:
// An empty byte array means there's no moodbar, so just show a normal slider.
void SetMoodbarData(const QByteArray& data);
// If the moodbar is disabled then a normal slider will always be shown.
void SetMoodbarEnabled(bool enabled);
private:
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static const int kMarginSize;
static const int kBorderSize;
static const int kArrowWidth;
static const int kArrowHeight;
enum State {
MoodbarOn,
MoodbarOff,
FadingToOn,
FadingToOff
};
private:
void NextState();
void Render(ComplexControl control, const QStyleOptionSlider* option,
QPainter* painter, const QWidget* widget);
void EnsureMoodbarRendered();
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void DrawArrow(const QStyleOptionSlider* option, QPainter* painter) const;
void ShowContextMenu(const QPoint& pos);
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static QPixmap MoodbarPixmap(const ColorVector& colors,
const QSize& size, const QPalette& palette);
private slots:
void ReloadSettings();
void FaderValueChanged(qreal value);
void ChangeStyle(QAction* action);
private:
Application* app_;
QSlider* slider_;
bool enabled_;
QByteArray data_;
MoodbarRenderer::MoodbarStyle moodbar_style_;
State state_;
QTimeLine* fade_timeline_;
QPixmap fade_source_;
QPixmap fade_target_;
bool moodbar_colors_dirty_;
bool moodbar_pixmap_dirty_;
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ColorVector moodbar_colors_;
QPixmap moodbar_pixmap_;
QMenu* context_menu_;
QAction* show_moodbar_action_;
QActionGroup* style_action_group_;
};
#endif // MOODBARPROXYSTYLE_H