init

cpp/src/timebridge.h

@@ -0,0 +1,59 @@
+#pragma once
+
+#include <qqmlintegration.h>
+
+#include <QObject>
+#include <QString>
+#include <QTimer>
+#include <QUrl>
+
+class ClockImageProvider;
+class Renderer;
+
+class ClockBridge : public QObject {
+    Q_OBJECT
+    QML_ELEMENT
+    Q_PROPERTY(QString imageSource READ imageSource NOTIFY imageSourceChanged)
+    Q_PROPERTY(bool ready READ ready NOTIFY readyChanged)
+    Q_PROPERTY(QString errorString READ errorString NOTIFY errorStringChanged)
+
+   public:
+    explicit ClockBridge(QObject* parent = nullptr);
+    ~ClockBridge() override;
+
+    QString imageSource() const;
+    bool ready() const;
+    QString errorString() const;
+
+    Q_INVOKABLE bool initialize(const QUrl& bg, const QUrl& hour,
+                                const QUrl& minute);
+    Q_INVOKABLE void refreshNow();
+
+   signals:
+    void imageSourceChanged();
+    void readyChanged();
+    void errorStringChanged();
+
+   private slots:
+    void onUpdateTimerTimeout();
+
+   private:
+    bool ensureImageProvider();
+    bool renderForCurrentTime();
+    void scheduleNextMinuteTick();
+    void setReady(bool value);
+    void setErrorString(const QString& value);
+    QString toLocalPath(const QUrl& url) const;
+    QString buildImageSource() const;
+    void bumpFrameRevision();
+
+    Renderer* renderer_ = nullptr;
+    ClockImageProvider* imageProvider_ = nullptr;
+    QString providerId_;
+    QString imageSource_;
+    QString errorString_;
+    bool ready_ = false;
+    bool initialized_ = false;
+    int frameRevision_ = 0;
+    QTimer updateTimer_;
+};