theme_welcome_preview.h

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#ifndef THEME_WELCOME_PREVIEW_H
#define THEME_WELCOME_PREVIEW_H
 
#include <ui/qt/utils/theme_manager.h>
#include <ui/qt/widgets/theme_preview_pick.h>
 
#include <QFont>
#include <QFrame>
#include <QHash>
#include <QImage>
#include <QList>
#include <QPalette>
 
#include <memory>
 
class QAction;
class QContextMenuEvent;
class QLabel;
class QMenu;
class QMouseEvent;
 
namespace Ui {
class ThemeWelcomePreview;
}

class ThemeWelcomePreview : public QFrame
{
    Q_OBJECT
public:
    explicit ThemeWelcomePreview(QWidget *parent = nullptr);
    ~ThemeWelcomePreview();

    void setTheme(const QHash<ThemeManager::ThemeToken, ThemeColorPair> &tokens,
                  bool dark, const QPalette &palette);

    void setPreviewFont(const QFont &regular);

    ThemePreviewPicker &picker() { return picker_; }
 
signals:
    void layerPicked(const ThemePreviewPick::Layer &layer);

    void pickMenuRequested(QMenu *menu, QAction *before,
                           const QList<ThemePreviewPick::Layer> &layers);

    void childDialogClosed();
 
protected:
    void mouseMoveEvent(QMouseEvent *event) override;
    void mousePressEvent(QMouseEvent *event) override;
    void contextMenuEvent(QContextMenuEvent *event) override;
 
private:
    int pickTextHeight() const;

    QImage renderPickImage();

    QString buildStyleSheet(const QHash<ThemeManager::ThemeToken, ThemeColorPair> &tokens,
                            bool dark, const QPalette &palette) const;
 
    Ui::ThemeWelcomePreview *ui;
    QLabel *filter_bookmark_;
    QLabel *filter_buttons_;
    ThemePreviewPicker picker_;
    QFont preview_font_;
    bool  has_preview_font_ = false;
    std::unique_ptr<ThemeWelcomePreview> pick_probe_;
    bool key_render_ = false;
};
 
#endif // THEME_WELCOME_PREVIEW_H