QmlProfiler: Refactor

The code of the qmlprofiler client has become a bit too complex,
this patch reorganizes the modules in a more sensible way,
having the modules communicate with each other through a
state machine instead of the excess of signals and slots
from before.

Change-Id: I76f7313779888a1bd07a1cdb1acbf2e47aacf42a
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>

src/plugins/qmlprofiler/qmlprofilertraceview.h

@@ -0,0 +1,158 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+**
+** GNU Lesser General Public License Usage
+**
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this file.
+** Please review the following information to ensure the GNU Lesser General
+** Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**************************************************************************/
+
+#ifndef QMLPROFILERTRACEVIEW_H
+#define QMLPROFILERTRACEVIEW_H
+
+#include <QDeclarativeView>
+
+namespace Analyzer {
+class IAnalyzerTool;
+}
+
+namespace QmlProfiler {
+namespace Internal {
+
+class QmlProfilerStateManager;
+class QmlProfilerViewManager;
+class QmlProfilerDataModel;
+
+// capture mouse wheel events
+class MouseWheelResizer : public QObject {
+    Q_OBJECT
+public:
+    MouseWheelResizer(QObject *parent=0):QObject(parent){}
+protected:
+    bool eventFilter(QObject *obj, QEvent *event);
+signals:
+    void mouseWheelMoved(int x, int y, int delta);
+};
+
+// centralized zoom control
+class ZoomControl : public QObject {
+    Q_OBJECT
+public:
+    ZoomControl(QObject *parent=0):QObject(parent),m_startTime(0),m_endTime(0) {}
+    ~ZoomControl(){}
+
+    Q_INVOKABLE void setRange(qint64 startTime, qint64 endTime);
+    Q_INVOKABLE qint64 startTime() { return m_startTime; }
+    Q_INVOKABLE qint64 endTime() { return m_endTime; }
+
+signals:
+    void rangeChanged();
+
+private:
+    qint64 m_startTime;
+    qint64 m_endTime;
+};
+
+class ScrollableDeclarativeView : public QDeclarativeView
+{
+    Q_OBJECT
+public:
+    explicit ScrollableDeclarativeView(QWidget *parent = 0);
+    ~ScrollableDeclarativeView();
+protected:
+    void scrollContentsBy(int dx, int dy);
+};
+
+class QmlProfilerTraceView : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit QmlProfilerTraceView(QWidget *parent, Analyzer::IAnalyzerTool *profilerTool, QmlProfilerViewManager *container, QmlProfilerDataModel *model, QmlProfilerStateManager *profilerState);
+    ~QmlProfilerTraceView();
+
+    void reset();
+
+    bool hasValidSelection() const;
+    qint64 selectionStart() const;
+    qint64 selectionEnd() const;
+
+public slots:
+    void clearDisplay();
+    void selectNextEventWithId(int eventId);
+
+private slots:
+    void updateCursorPosition();
+    void toggleRangeMode(bool);
+    void updateRangeButton();
+    void toggleLockMode(bool);
+    void updateLockButton();
+
+    void setZoomLevel(int zoomLevel);
+    void updateRange();
+    void mouseWheelMoved(int mouseX, int mouseY, int wheelDelta);
+
+    void updateToolTip(const QString &text);
+    void updateVerticalScroll(int newPosition);
+    void profilerDataModelStateChanged();
+
+protected:
+    virtual void resizeEvent(QResizeEvent *event);
+
+private slots:
+    void profilerStateChanged();
+    void clientRecordingChanged();
+    void serverRecordingChanged();
+
+signals:
+    void gotoSourceLocation(const QString &fileUrl, int lineNumber, int columNumber);
+    void selectedEventChanged(int eventId);
+
+    void jumpToPrev();
+    void jumpToNext();
+    void rangeModeChanged(bool);
+    void lockModeChanged(bool);
+    void enableToolbar(bool);
+    void zoomLevelChanged(int);
+
+private:
+    void contextMenuEvent(QContextMenuEvent *);
+    QWidget *createToolbar();
+    QWidget *createZoomToolbar();
+
+    void setRecording(bool recording);
+    void setAppKilled();
+
+private:
+    class QmlProfilerTraceViewPrivate;
+    QmlProfilerTraceViewPrivate *d;
+};
+
+} // namespace Internal
+} // namespace QmlProfiler
+
+#endif // QMLPROFILERTRACEVIEW_H
+