profile: remove profile widget code from mainwindow

Create a new class that encapsulates the profile-widget UI.

This is called ProfileWidget, which might be confusing since
the actual display is called ProfileWidget2. However, the
plan is to rename the latter to ProfileView. After all, it
is also used to print and to show the profile on mobile.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

desktop-widgets/profilewidget.h

@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+// The profile and its toolbars.
+
+#ifndef PROFILEWIDGET_H
+#define PROFILEWIDGET_H
+
+#include "ui_profilewidget.h"
+
+#include <vector>
+#include <memory>
+
+class ProfileWidget2;
+
+class ProfileWidget : public QWidget {
+	Q_OBJECT
+public:
+	ProfileWidget();
+	~ProfileWidget();
+	std::unique_ptr<ProfileWidget2> view;
+	void plotCurrentDive();
+	void setPlanState(const struct dive *d, int dc);
+	void setEditState(const struct dive *d, int dc);
+	void setEnabledToolbar(bool enabled);
+private
+slots:
+	void unsetProfHR();
+	void unsetProfTissues();
+private:
+	std::vector<QAction *> toolbarActions;
+	Ui::ProfileWidget ui;
+	void setDive(const struct dive *d);
+};
+
+#endif // PROFILEWIDGET_H