QmlProfiler: Improvements to searching timeline event notes

- Open timeline view when clicking search button
- Use the usual search tool bar
- Implement incremental search and the various search options

Change-Id: Id83ab502cf4175738a825f531d9e454169663765
Reviewed-by: Ulf Hermann <ulf.hermann@theqtcompany.com>

src/plugins/qmlprofiler/qmlprofilertraceview.h

@@ -32,8 +32,11 @@
 #define QMLPROFILERTRACEVIEW_H
 
 #include "qmlprofilermodelmanager.h"
-#include <QWidget>
+
+#include <coreplugin/find/ifindsupport.h>
+
 #include <QTimer>
+#include <QWidget>
 
 namespace QmlProfiler {
 
@@ -83,6 +86,33 @@ private:
     QmlProfilerTraceViewPrivate *d;
 };
 
+class TraceViewFindSupport : public Core::IFindSupport
+{
+    Q_OBJECT
+
+public:
+    TraceViewFindSupport(QmlProfilerTraceView *view, QmlProfilerModelManager *manager);
+
+    bool supportsReplace() const override;
+    Core::FindFlags supportedFindFlags() const override;
+    void resetIncrementalSearch() override;
+    void clearHighlights() override;
+    QString currentFindString() const override;
+    QString completedFindString() const override;
+    Result findIncremental(const QString &txt, Core::FindFlags findFlags) override;
+    Result findStep(const QString &txt, Core::FindFlags findFlags) override;
+
+private:
+    bool find(const QString &txt, Core::FindFlags findFlags, int start, bool *wrapped);
+    bool findOne(const QString &txt, Core::FindFlags findFlags, int start);
+
+    QmlProfilerTraceView *m_view;
+    QmlProfilerModelManager *m_modelManager;
+    int m_incrementalStartPos = -1;
+    bool m_incrementalWrappedState = false;
+    int m_currentPosition = -1;
+};
+
 } // namespace Internal
 } // namespace QmlProfiler