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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef MYSTYLE_H
#define MYSTYLE_H
#include <QColor>
#include <QQmlEngine>
#include <QQuickAttachedPropertyPropagator>
#include "mystyle_export.h"
class MYSTYLE_EXPORT MyStyle : public QQuickAttachedPropertyPropagator
{
Q_OBJECT
// Provide a RESET function in order to allow an item to set MyStyle.theme to undefined
// in order to use its parent's (or global) theme after one was explicitly set on it.
Q_PROPERTY(Theme theme READ theme WRITE setTheme RESET resetTheme NOTIFY themeChanged FINAL)
// As the values of these properties only depend on the theme, they can all use the theme
// property's change signal.
Q_PROPERTY(QColor windowColor READ windowColor NOTIFY themeChanged FINAL)
Q_PROPERTY(QColor windowTextColor READ windowTextColor NOTIFY themeChanged FINAL)
Q_PROPERTY(QColor buttonColor READ buttonColor NOTIFY themeChanged FINAL)
Q_PROPERTY(QColor buttonTextColor READ buttonTextColor NOTIFY themeChanged FINAL)
Q_PROPERTY(QColor toolBarColor READ toolBarColor NOTIFY themeChanged FINAL)
Q_PROPERTY(QColor popupColor READ popupColor NOTIFY themeChanged FINAL)
Q_PROPERTY(QColor popupBorderColor READ popupBorderColor NOTIFY themeChanged FINAL)
Q_PROPERTY(QColor backgroundDimColor READ backgroundDimColor NOTIFY themeChanged FINAL)
QML_ELEMENT
QML_ATTACHED(MyStyle)
QML_UNCREATABLE("")
QML_ADDED_IN_VERSION(1, 0)
public:
enum Theme {
Light,
Dark
};
Q_ENUM(Theme)
explicit MyStyle(QObject *parent = nullptr);
static MyStyle *qmlAttachedProperties(QObject *object);
Theme theme() const;
void setTheme(Theme theme);
void inheritTheme(Theme theme);
void propagateTheme();
void resetTheme();
void themeChange();
QColor windowColor() const;
QColor windowTextColor() const;
QColor buttonColor() const;
QColor buttonTextColor() const;
QColor toolBarColor() const;
QColor popupColor() const;
QColor popupBorderColor() const;
QColor backgroundDimColor() const;
Q_SIGNALS:
void themeChanged();
protected:
void attachedParentChange(QQuickAttachedPropertyPropagator *newParent, QQuickAttachedPropertyPropagator *oldParent) override;
private:
// Whether a color value was explicitly set on the specific object that this attached style object represents.
bool m_explicitTheme = false;
// The actual values for this item, whether explicit, inherited or globally set.
Theme m_theme = Light;
};
#endif // MYSTYLE_H
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