/**
 * @file llfasttimerview.h
 * @brief LLFastTimerView class definition
 *
 * $LicenseInfo:firstyear=2004&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#ifndef LL_LLFASTTIMERVIEW_H
#define LL_LLFASTTIMERVIEW_H

#include "llfloater.h"
#include "llfasttimer.h"
#include "llunits.h"
#include "lltracerecording.h"
#include <deque>

class LLScrollbar;

class LLFastTimerView : public LLFloater
{
public:
    LLFastTimerView(const LLSD&);
    ~LLFastTimerView();
    bool postBuild();

    static bool sAnalyzePerformance;

    static void outputAllMetrics();
    static void doAnalysis(std::string baseline, std::string target, std::string output);

private:
    static void doAnalysisDefault(std::string baseline, std::string target, std::string output) ;
    static LLSD analyzePerformanceLogDefault(std::istream& is) ;
    static void exportCharts(const std::string& base, const std::string& target);
    void onPause();

public:

    virtual bool handleMouseDown(S32 x, S32 y, MASK mask);
    virtual bool handleDoubleClick(S32 x, S32 y, MASK mask);
    virtual bool handleRightMouseDown(S32 x, S32 y, MASK mask);
    virtual bool handleMouseUp(S32 x, S32 y, MASK mask);
    virtual bool handleHover(S32 x, S32 y, MASK mask);
    virtual bool handleToolTip(S32 x, S32 y, MASK mask);
    virtual bool handleScrollWheel(S32 x, S32 y, S32 clicks);
    virtual void draw();
    virtual void onOpen(const LLSD& key);
    virtual void onClose(bool app_quitting);
    LLTrace::BlockTimerStatHandle* getLegendID(S32 y);

private:
    void drawTicks();
    void drawLineGraph();
    void drawLegend();
    void drawHelp(S32 y);
    void drawBorders( S32 y, const S32 x_start, S32 barh, S32 dy);
    void drawBars();

    void printLineStats();
    void generateUniqueColors();
    void updateTotalTime();

    struct TimerBar
    {
        TimerBar()
        :   mTotalTime(0),
            mSelfTime(0),
            mStartFraction(0.f),
            mEndFraction(1.f),
            mFirstChild(false),
            mLastChild(false)
        {}
        F32Seconds          mTotalTime,
                            mSelfTime,
                            mChildrenStart,
                            mChildrenEnd,
                            mSelfStart,
                            mSelfEnd;
        LLTrace::BlockTimerStatHandle* mTimeBlock;
        bool                mVisible,
                            mFirstChild,
                            mLastChild;
        F32                 mStartFraction,
                            mEndFraction;
    };

    struct TimerBarRow
    {
        TimerBarRow()
        :   mBottom(0),
            mTop(0),
            mBars(NULL)
        {}
        S32         mBottom,
                    mTop;
        TimerBar*   mBars;
    };

    F32Seconds updateTimerBarWidths(LLTrace::BlockTimerStatHandle* time_block, TimerBarRow& row, S32 history_index, U32& bar_index);
    S32 updateTimerBarOffsets(LLTrace::BlockTimerStatHandle* time_block, TimerBarRow& row, S32 timer_bar_index = 0);
    S32 drawBar(LLRect bar_rect, TimerBarRow& row, S32 image_width, S32 image_height, bool hovered = false, bool visible = true, S32 bar_index = 0);
    void setPauseState(bool pause_state);

    std::deque<TimerBarRow> mTimerBarRows;
    TimerBarRow             mAverageTimerRow;

    enum EDisplayType
    {
        DISPLAY_TIME,
        DISPLAY_CALLS,
        DISPLAY_HZ
    }                               mDisplayType;
    bool                            mPauseHistory;
    F64Seconds                      mAllTimeMax,
                                    mTotalTimeDisplay;
    S32                             mScrollIndex,
                                    mHoverBarIndex,
                                    mStatsIndex;
    S32                             mDisplayMode;
    LLTrace::BlockTimerStatHandle*              mHoverID;
    LLTrace::BlockTimerStatHandle*              mHoverTimer;
    LLRect                          mToolTipRect,
                                    mGraphRect,
                                    mBarRect,
                                    mLegendRect;
    LLFrameTimer                    mHighlightTimer;
    LLTrace::PeriodicRecording      mRecording;

    LLScrollbar*                    mScrollBar;
};

#endif