version 2.24.0

Graphic setCustomSaveImageTitleFunc() - add custom title when save to image

libs/graphic/graphic.h

@@ -380,6 +380,7 @@ public slots:
 	void setGraphicsCount(int arg, bool update = true);
 	void removeGraphic(int arg, bool update = true);
 	void setCustomGridMarkFuncs(std::function<QString(double val)> fx, std::function<QString(double val)> fy);
+	void setCustomSaveImageTitleFunc(std::function<QString()> func);
 
 	void zoom(float factor);
 	void zoomIn() { zoom(1. / 1.2); }
@@ -475,6 +476,7 @@ protected:
 	bool hasLblX, hasLblY, navigation, only_expand_y, only_expand_x, is_lines_update, leg_update, visible_update, fullscr, need_mouse_pan,
 		was_trace;
 	std::function<QString(double val)> func_gridMarkX, func_gridMarkY;
+	std::function<QString()> func_image_title;
 	QVector<DateFormats> date_formats;
 	QList<QImage> record_imgs;