#include "toonzqt/flipconsole.h"

// TnzQt includes
#include "toonzqt/menubarcommand.h"
#include "toonzqt/dvscrollwidget.h"
#include "toonzqt/gutil.h"
#include "toonzqt/flipconsoleowner.h"

// TnzLib includes
#include "toonz/preferences.h"
#include "toonz/tframehandle.h"

// TnzBase includes
#include "tenv.h"

// TnzCore includes
#include "tconvert.h"
#include "timagecache.h"
#include "trop.h"

#include "../toonz/tapp.h"

// Qt includes
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QToolBar>
#include <QLabel>
#include <QFrame>
#include <QSlider>
#include <QTimerEvent>
#include <QToolButton>
#include <QPainter>
#include <QMouseEvent>
#include <QIcon>
#include <QAction>
#include <QWidgetAction>
#include <QStyle>
#include <QStylePainter>
#include <QStyleOption>
#include <QStyleOptionFrameV3>
#include <QSettings>
#include <QPushButton>
#include <QScrollBar>

using namespace DVGui;

//==========================================================================================
//    Preliminary stuff - local namespace
//==========================================================================================
TEnv::IntVar FlipBookWhiteBgToggle("FlipBookWhiteBgToggle", 1);
TEnv::IntVar FlipBookBlackBgToggle("FlipBookBlackBgToggle", 0);
TEnv::IntVar FlipBookCheckBgToggle("FlipBookCheckBgToggle", 0);
namespace
{
//Please refer to the "qss/standard/standard.qss" file for explanations of the following properties.

int PBHeight;

QImage PBOverlay;
QImage PBMarker;

int PBColorMarginLeft = 0;
int PBColorMarginTop = 0;
int PBColorMarginRight = 0;
int PBColorMarginBottom = 0;

int PBMarkerMarginLeft = 0;
int PBMarkerMarginRight = 0;

QColor PBBaseColor = QColor(235, 235, 235);
QColor PBNotStartedColor = QColor(210, 40, 40);
QColor PBStartedColor = QColor(220, 160, 160);
QColor PBFinishedColor = QColor(235, 235, 235);
}

//-----------------------------------------------------------------------------

int FlipSlider::getPBHeight() const { return PBHeight; }
void FlipSlider::setPBHeight(int height)
{
	setFixedHeight(height);
	PBHeight = height;
}

QImage FlipSlider::getPBOverlay() const { return PBOverlay; }
void FlipSlider::setPBOverlay(const QImage &img) { PBOverlay = img; }

QImage FlipSlider::getPBMarker() const { return PBMarker; }
void FlipSlider::setPBMarker(const QImage &img) { PBMarker = img; }

int FlipSlider::getPBColorMarginLeft() const { return PBColorMarginLeft; }
void FlipSlider::setPBColorMarginLeft(int margin) { PBColorMarginLeft = margin; }

int FlipSlider::getPBColorMarginTop() const { return PBColorMarginTop; }
void FlipSlider::setPBColorMarginTop(int margin) { PBColorMarginTop = margin; }

int FlipSlider::getPBColorMarginRight() const { return PBColorMarginRight; }
void FlipSlider::setPBColorMarginRight(int margin) { PBColorMarginRight = margin; }

int FlipSlider::getPBColorMarginBottom() const { return PBColorMarginBottom; }
void FlipSlider::setPBColorMarginBottom(int margin) { PBColorMarginBottom = margin; }

int FlipSlider::getPBMarkerMarginLeft() const { return PBMarkerMarginLeft; }
void FlipSlider::setPBMarkerMarginLeft(int margin) { PBMarkerMarginLeft = margin; }

int FlipSlider::getPBMarkerMarginRight() const { return PBMarkerMarginRight; }
void FlipSlider::setPBMarkerMarginRight(int margin) { PBMarkerMarginRight = margin; }

QColor FlipSlider::getBaseColor() const { return PBBaseColor; }
void FlipSlider::setBaseColor(const QColor &color) { PBBaseColor = color; }

QColor FlipSlider::getNotStartedColor() const { return PBNotStartedColor; }
void FlipSlider::setNotStartedColor(const QColor &color) { PBNotStartedColor = color; }

QColor FlipSlider::getStartedColor() const { return PBStartedColor; }
void FlipSlider::setStartedColor(const QColor &color) { PBStartedColor = color; }

QColor FlipSlider::getFinishedColor() const { return PBFinishedColor; }
void FlipSlider::setFinishedColor(const QColor &color) { PBFinishedColor = color; }

FlipConsole *FlipConsole::m_currentConsole = 0;
QList<FlipConsole *> FlipConsole::m_visibleConsoles;
bool FlipConsole::m_isLinkedPlaying = false;
bool FlipConsole::m_areLinked = false;

//==========================================================================================

PlaybackExecutor::PlaybackExecutor()
	: m_fps(25), m_abort(false)
{
}

//-----------------------------------------------------------------------------

void PlaybackExecutor::resetFps(int fps)
{
	m_fps = fps;
}

//-----------------------------------------------------------------------------

void PlaybackExecutor::run()
{
	// (Daniele)
	// We'll build the fps considering an interval of roughly 1 second (the last one).
	// However, the fps should be sampled at a faster rate. Each sample is taken at
	// 1/4 second, and the last 4 samples data are stored to keep trace of the last
	// second of playback.

	TStopWatch timer;
	timer.start();

	TUINT32 timeResolution = 250; // Use a sufficient sampling resolution (currently 1/4 sec).
								  // Fps calculation is made once per sample.

	int fps = m_fps, currSample = 0;
	TUINT32 playedFramesCount = 0;
	TUINT32 loadedInstant, nextSampleInstant = timeResolution;
	TUINT32 sampleTotalLoadingTime = 0;

	TUINT32 lastFrameCounts[4] = {0, 0, 0, 0};	// Keep the last 4 'played frames' counts.
	TUINT32 lastSampleInstants[4] = {0, 0, 0, 0}; // Same for the last sampling instants
	TUINT32 lastLoadingTimes[4] = {0, 0, 0, 0};   // Same for total sample loading times

	double targetFrameTime = 1000.0 / abs(m_fps); // User-required time between frames

	TUINT32 emissionInstant = 0;   // Effective instant in which loading is invoked
	double emissionInstantD = 0.0; // Double precision version of the above

	double lastLoadingTime = 0.0; // Mean frame loading time in the last sample

	while (!m_abort) {
		emissionInstant = timer.getTotalTime();

		// Draw the next frame
		emit nextFrame(fps); // Show the next frame, telling
							 // currently measured fps

		if (FlipConsole::m_areLinked) {
			// In case there are linked consoles, update them too.
			// Their load time must be included in the fps calculation.
			int i, consolesCount = FlipConsole::m_visibleConsoles.size();
			for (i = 0; i < consolesCount; ++i) {
				FlipConsole *console = FlipConsole::m_visibleConsoles.at(i);
				if (console->isLinkable() && console != FlipConsole::m_currentConsole)
					console->playbackExecutor().emitNextFrame(m_fps < 0 ? -fps : fps);
			}
		}

		//-------- Each nextFrame() blocks until the frame has been shown ---------

		++playedFramesCount;
		loadedInstant = timer.getTotalTime();
		sampleTotalLoadingTime += (loadedInstant - emissionInstant);

		// Recalculate data only after the specified time resolution has passed.
		if (loadedInstant > nextSampleInstant) {
			// Sampling instant. Perform calculations.

			// Store values
			TUINT32 framesCount = playedFramesCount - lastFrameCounts[currSample];
			TUINT32 elapsedTime = loadedInstant - lastSampleInstants[currSample];
			double loadingTime = (sampleTotalLoadingTime - lastLoadingTimes[currSample]) / (double)framesCount;

			lastFrameCounts[currSample] = playedFramesCount;
			lastSampleInstants[currSample] = loadedInstant;
			lastLoadingTimes[currSample] = sampleTotalLoadingTime;

			currSample = (currSample + 1) % 4;
			nextSampleInstant = loadedInstant + timeResolution;

			// Rebuild current fps
			fps = troundp((1000 * framesCount) / (double)elapsedTime);
			targetFrameTime = 1000.0 / abs(m_fps); // m_fps could have changed...

			// In case the playback is too slow to keep the required pace, reset the emission timeline.
			// Otherwise, it should be kept as the difference needs to be compensated to get the required fps.
			if ((int)emissionInstant - (int)emissionInstantD > 20) // Reset beyond, say, 20 msecs tolerance.
				emissionInstantD = (double)loadedInstant - loadingTime;
			else
				emissionInstantD += lastLoadingTime - loadingTime; // Otherwise, just adapt to the new loading time

			lastLoadingTime = loadingTime;
		}

		// Calculate the new emission instant
		emissionInstant = tmax((int)(emissionInstantD += targetFrameTime), 0);

		// Sleep until the next emission instant has been reached
		while (timer.getTotalTime() < emissionInstant)
			msleep(1);
	}

	m_abort = false;
}

//==========================================================================================

FlipSlider::FlipSlider(QWidget *parent)
	: QAbstractSlider(parent), m_enabled(false), m_progressBarStatus(0)
{
	setObjectName("FlipSlider");
	setOrientation(Qt::Horizontal);
	setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
}

//-----------------------------------------------------------------------------

void FlipSlider::paintEvent(QPaintEvent *ev)
{
	QPainter p(this);

	//Draw the progress status colorbar
	QRect sliderRect(QPoint(), size());
	QRect colorRect(sliderRect.adjusted(
		PBMarkerMarginLeft,
		PBColorMarginTop,
		-PBMarkerMarginRight,
		-PBColorMarginBottom));

	int val, maxValuePlusStep = maximum() + singleStep();
	int colorWidth = colorRect.width(), colorHeight = colorRect.height();

	p.setPen(Qt::NoPen);
	int currPos = PBColorMarginLeft, nextPos;

	//paint the base of slider
	if (m_enabled && m_progressBarStatus && !m_progressBarStatus->empty()) {
		unsigned int i, pbStatusSize = m_progressBarStatus->size();
		for (i = 0, val = minimum() + singleStep();
			 i < pbStatusSize;
			 ++i, val += singleStep()) {
			nextPos = sliderPositionFromValue(minimum(), maxValuePlusStep, val, colorWidth) + PBMarkerMarginLeft;
			if (i == pbStatusSize - 1)
				nextPos += PBMarkerMarginRight;
			p.fillRect(currPos, PBColorMarginTop, nextPos - currPos, colorHeight,
					   ((*m_progressBarStatus)[i] == PBFrameStarted) ? PBStartedColor : ((*m_progressBarStatus)[i] == PBFrameFinished) ? PBFinishedColor : PBNotStartedColor);
			currPos = nextPos;
		}

		//Draw frames outside the pb
		if (val < maximum())
			p.fillRect(currPos, PBColorMarginTop, width() - PBColorMarginRight - currPos, colorHeight, PBNotStartedColor);
	} else
		p.fillRect(PBColorMarginLeft, PBColorMarginTop, sliderRect.width() - PBColorMarginLeft - PBColorMarginRight, colorHeight, PBBaseColor);

	//Draw the PB Overlay
	int overlayInnerWidth = PBOverlay.width() - PBColorMarginLeft - PBColorMarginRight;
	int markerInnerWidth = PBMarker.width() - PBMarkerMarginLeft - PBMarkerMarginRight;

	p.drawImage(
		QRect(0, 0, PBColorMarginLeft, height()),
		PBOverlay,
		QRect(0, 0, PBColorMarginLeft, PBOverlay.height()));
	p.drawImage(
		QRect(PBColorMarginLeft, 0, sliderRect.width() - PBColorMarginLeft - PBColorMarginRight, height()),
		PBOverlay,
		QRect(PBColorMarginLeft, 0, overlayInnerWidth, PBOverlay.height()));
	p.drawImage(
		QRect(width() - PBColorMarginRight, 0, PBColorMarginRight, height()),
		PBOverlay,
		QRect(PBOverlay.width() - PBColorMarginRight, 0, PBColorMarginRight, PBOverlay.height()));

	//Draw the position marker
	currPos = sliderPositionFromValue(minimum(), maxValuePlusStep, value(), colorWidth) + PBMarkerMarginLeft;
	nextPos = sliderPositionFromValue(minimum(), maxValuePlusStep, value() + singleStep(), colorWidth) + PBMarkerMarginLeft;

	p.drawImage(
		QRect(currPos - PBMarkerMarginLeft, 0, PBMarkerMarginLeft, height()),
		PBMarker,
		QRect(0, 0, PBMarkerMarginLeft, PBMarker.height()));
	p.drawImage(
		QRect(currPos, 0, nextPos - currPos, height()),
		PBMarker,
		QRect(PBMarkerMarginLeft, 0, markerInnerWidth, PBMarker.height()));
	p.drawImage(
		QRect(nextPos, 0, PBMarkerMarginRight, height()),
		PBMarker,
		QRect(PBMarker.width() - PBMarkerMarginRight, 0, PBMarkerMarginRight, PBMarker.height()));
}

//-----------------------------------------------------------------------------

inline int FlipSlider::sliderPositionFromValue(int min, int max, int val, int span)
{
	return tceil(span * ((val - min) / (double)(max - min)));
}

//-----------------------------------------------------------------------------

inline int FlipSlider::sliderValueFromPosition(int min, int max, int step, int pos, int span)
{
	int colorBarPos = pos - PBColorMarginLeft;
	int colorSpan = span - PBColorMarginLeft - PBColorMarginRight;
	int tempRelativePos = (max - min + step) * (colorBarPos / (double)colorSpan);
	return min + (tempRelativePos - tempRelativePos % step);
}

//-----------------------------------------------------------------------------

inline int FlipSlider::pageStepVal(int val)
{
	return tcrop(value() + pageStep() * tsign(val - value()), minimum(), maximum());
}

//-----------------------------------------------------------------------------

//Mouse Press behaviour:
//  a) If middle button, just put frame to cursor position
//  b) If left button, and cursor on current frame pos, do like (a)
//  c) If left button, and cursor NOT on curr.. perform a page up/down on
//     the side of cursor pos
void FlipSlider::mousePressEvent(QMouseEvent *me)
{
	emit flipSliderPressed();
	int cursorValue = sliderValueFromPosition(minimum(), maximum(), singleStep(), me->pos().x(), width());
	if (me->button() == Qt::MidButton)
		if (cursorValue == value())
			setSliderDown(true);
		else {
			//Move the page step
			setValue(pageStepVal(cursorValue));
		}

	else if (me->button() == Qt::LeftButton && cursorValue != value())
		setValue(cursorValue);
}

//-----------------------------------------------------------------------------

void FlipSlider::mouseMoveEvent(QMouseEvent *me)
{
	if (isSliderDown() || me->buttons() & Qt::LeftButton) {
		int cursorValue = sliderValueFromPosition(minimum(), maximum(), singleStep(), me->pos().x(), width());
		setValue(cursorValue);
	}
}

//-----------------------------------------------------------------------------

void FlipSlider::mouseReleaseEvent(QMouseEvent *me)
{
	setSliderDown(false);
	emit flipSliderReleased();
}

//=============================================================================

enum {
	eShowCompare = 0x001,
	eShowBg = 0x002,
	eShowFramerate = 0x004,
	eShowVcr = 0x008,
	eShowcolorFilter = 0x010,
	eShowCustom = 0x020,
	eShowHisto = 0x040,
	eShowSave = 0x080,
	eShowDefineSubCamera = 0x100,
	eShowFilledRaster = 0x200,
	eShowDefineLoadBox = 0x400,
	eShowUseLoadBox = 0x800,
	eShowHowMany = 0x1000
};

FlipConsole::FlipConsole(QVBoxLayout *mainLayout,
						 UINT gadgetsMask,
						 bool isLinkable,
						 QWidget *customWidget,
						 const QString &customizeId,
						 FlipConsoleOwner *consoleOwner,
						 bool enableBlanks)
	: m_gadgetsMask(gadgetsMask), m_from(1), m_to(1), m_step(1), m_currentFrame(1), m_framesCount(1), m_settings(), m_fps(24), m_isPlay(false), m_reverse(false), m_doubleRed(0), m_doubleGreen(0), m_doubleBlue(0), m_doubleRedAction(0), m_doubleGreenAction(0), m_doubleBlueAction(0), m_fpsSlider(0), m_markerFrom(0), m_markerTo(-1), m_playbackExecutor(), m_drawBlanksEnabled(enableBlanks), m_blanksCount(0), m_blankColor(TPixel::Transparent), m_blanksToDraw(0), m_isLinkable(isLinkable), m_customAction(0), m_customizeMask(eShowHowMany - 1), m_fpsLabelAction(0), m_fpsSliderAction(0), m_fpsFieldAction(0), m_fpsField(0), m_customizeId(customizeId), m_histoSep(0), m_filledRasterSep(0), m_bgSep(0), m_vcrSep(0), m_compareSep(0), m_saveSep(0), m_colorFilterSep(0), m_subcamSep(0), m_playToolBar(0), m_colorFilterGroup(0), m_fpsLabel(0), m_consoleOwner(consoleOwner), m_enableBlankFrameButton(0)
{
	QString s = QSettings().value(m_customizeId).toString();
	if (s != "")
		m_customizeMask = s.toUInt();

	if (m_gadgetsMask == 0)
		return;

	//mainLayout->setMargin(1);
	//mainLayout->setSpacing(0);

	//create toolbars other than frame slider
	if (m_gadgetsMask & (~eFrames)) {
		createPlayToolBar(customWidget != 0);

		m_playToolBarContainer = new ToolBarContainer();

		QHBoxLayout *hLayout = new QHBoxLayout;
		hLayout->setMargin(0);
		hLayout->setSpacing(0);
		hLayout->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
		{
			DvScrollWidget *scrollableContainer = new DvScrollWidget;
			scrollableContainer->setWidget(m_playToolBar);
			hLayout->addWidget(scrollableContainer);

			//show fps
			if (m_gadgetsMask & eRate) {
				QFrame *fpsSliderFrame = createFpsSlider();
				hLayout->addWidget(fpsSliderFrame, 1);
			}
		}
		m_playToolBarContainer->setLayout(hLayout);

		mainLayout->addWidget(m_playToolBarContainer);
	}

	// create frame slider
	if (m_gadgetsMask & eFrames) {
		m_frameSliderFrame = createFrameSlider();
		mainLayout->addWidget(m_frameSliderFrame);
	}

	if (customWidget) {
		m_customAction = m_playToolBar->addWidget(customWidget);
		m_customSep = m_playToolBar->addSeparator();
	}

	applyCustomizeMask();

	bool ret = connect(&m_playbackExecutor, SIGNAL(nextFrame(int)), this, SLOT(onNextFrame(int)), Qt::BlockingQueuedConnection);

	assert(ret);

	//parent->setLayout(mainLayout);
}

//-----------------------------------------------------------------------------

void FlipConsole::showHideAllParts(bool isShow)
{
	m_playToolBarContainer->setVisible(isShow);
	m_frameSliderFrame->setVisible(isShow);
}

//-----------------------------------------------------------------------------

void showEvent(QShowEvent *);
void hideEvent(QHideEvent *);

void FlipConsole::makeCurrent()
{
	if (m_currentConsole == this)
		return;
	int i = m_visibleConsoles.indexOf(this);
	if (i >= 0)
		m_visibleConsoles.takeAt(i);
	m_visibleConsoles.append(this);
	m_currentConsole = this;
}

//-----------------------------------------------------------------------------

void FlipConsole::setActive(bool active)
{
	if (active)
		makeCurrent();
	else {
		pressButton(ePause);
		int i = m_visibleConsoles.indexOf(this);
		if (i >= 0)
			m_visibleConsoles.takeAt(i);
		if (m_currentConsole == this) {
			if (!m_visibleConsoles.empty())
				m_currentConsole = m_visibleConsoles.last();
			else
				m_currentConsole = 0;
		}
	}
}

//-----------------------------------------------------------------------------

#define LX 21
#define LY 17
class DoubleButton : public QToolButton
{
	QAction *m_firstAction, *m_secondAction;
	QIcon::Mode m_firstMode, m_secondMode;
	QIcon::State m_firstState, m_secondState;
	bool m_enabled;

public:
	DoubleButton(QAction *firstAction, QAction *secondAction, QWidget *parent = 0)
		: QToolButton(parent), m_firstAction(firstAction), m_secondAction(secondAction), m_firstMode(QIcon::Normal), m_secondMode(QIcon::Normal), m_firstState(QIcon::Off), m_secondState(QIcon::Off), m_enabled(true)
	{
		setFixedSize(LX, LY);
		setMouseTracking(true);
	}
	void setEnabledSecondButton(bool state)
	{
		if (!state && m_secondAction->isChecked())
			m_secondAction->trigger();
		m_enabled = state;
		update();
	}

protected:
	void paintEvent(QPaintEvent *e)
	{
		QPainter p(this);

		p.drawPixmap(0, 0, m_firstAction->icon().pixmap(QSize(LX, LY / 2), m_firstAction->isChecked() ? QIcon::Normal : m_firstMode,
														m_firstAction->isChecked() ? QIcon::On : m_firstState));

		QIcon::Mode mode = m_enabled ? (m_secondAction->isChecked() ? QIcon::Normal : m_secondMode) : QIcon::Disabled;
		QIcon::State state = m_enabled ? (m_secondAction->isChecked() ? QIcon::On : m_secondState) : QIcon::Off;

		p.drawPixmap(0, LY / 2 + 1, m_secondAction->icon().pixmap(QSize(LX, LY / 2), mode, state));
	}

	void mousePressEvent(QMouseEvent *e)
	{
		QRect firstActionRect(0, 0, LX, LY / 2);
		QRect secondActionRect(0, LY / 2 + 1, LX, LY / 2);

		QPoint pos = e->pos();
		if (firstActionRect.contains(pos)) {
			m_firstAction->trigger();
		} else {
			if (m_enabled)
				m_secondAction->trigger();
		}
		update();
	}

	void mouseMoveEvent(QMouseEvent *e)
	{
		QPoint pos = e->pos();
		QRect firstActionRect(0, 0, LX, LY / 2);
		QRect secondActionRect(0, LY / 2 + 1, LX, LY / 2);

		m_firstState = QIcon::Off;
		m_secondState = QIcon::Off;
		m_firstMode = QIcon::Normal;
		m_secondMode = QIcon::Normal;

		if (firstActionRect.contains(pos)) {
			m_firstMode = QIcon::Active;
			setToolTip(m_firstAction->toolTip());
		} else if (secondActionRect.contains(pos) && m_enabled) {
			m_secondMode = QIcon::Active;
			setToolTip(m_secondAction->toolTip());
		}
		update();
	}

	void leaveEvent(QEvent *e)
	{
		m_firstMode = QIcon::Normal;
		m_firstState = QIcon::Off;
		m_secondMode = QIcon::Normal;
		m_secondState = QIcon::Off;

		update();

		QToolButton::leaveEvent(e);
	}
};

//-----------------------------------------------------------------------------

void FlipConsole::enableButton(UINT button, bool enable, bool doShowHide)
{
#if defined(MACOSX) //on mac, the sound playback in flip is broken..
	if (button == eSound)
		enable = false;
#endif

	if (!m_playToolBar)
		return;

	QList<QAction *> list = m_playToolBar->actions();
	int i;
	for (i = 0; i < (int)list.size(); i++)
		if (list[i]->data().toUInt() == button) {
			if (button == eSound)
				if (doShowHide)
					m_soundSep->setVisible(enable);
				else
					m_soundSep->setEnabled(enable);
			if (button == eHisto) {
				if (doShowHide)
					m_histoSep->setVisible(enable && m_customizeMask & eShowHisto);
				else
					m_histoSep->setEnabled(enable);
			}
			if (doShowHide)
				list[i]->setVisible(enable);
			else
				list[i]->setEnabled(enable);
			if (!enable && list[i]->isChecked())
				pressButton((EGadget)button);

			return;
		}

	//double buttons are special, they are not accessible directly from the playtoolbar...
	switch ((EGadget)button) {
	case eGRed:
		if (m_doubleRed)
			m_doubleRed->setEnabledSecondButton(enable);
		CASE eGGreen : if (m_doubleGreen)
						   m_doubleGreen->setEnabledSecondButton(enable);
		CASE eGBlue : if (m_doubleBlue)
						  m_doubleBlue->setEnabledSecondButton(enable);
		break;
	}
}

//----------------------------------------------------------------------------

void FlipConsole::toggleLinked()
{
	m_areLinked = !m_areLinked;

	int i;
	FlipConsole *playingConsole = 0;
	for (i = 0; i < m_visibleConsoles.size(); i++) {
		playingConsole = m_visibleConsoles.at(i);
		if (playingConsole->m_isLinkable && playingConsole->m_playbackExecutor.isRunning())
			break;
	}

	if (i == m_visibleConsoles.size())
		return;

	//if we are here, flip is playing!
	m_isLinkedPlaying = m_areLinked;
	int button = m_areLinked ? (playingConsole->m_isPlay ? ePlay : eLoop) : ePause;

	for (i = 0; i < m_visibleConsoles.size(); i++) {
		FlipConsole *console = m_visibleConsoles.at(i);
		if (console->m_isLinkable && console != playingConsole) {
			console->setChecked(button, true);
			console->doButtonPressed(button);
		}
	}
}

//----------------------------------------------------------------------------

bool FlipConsole::drawBlanks(int from, int to)
{
	if (m_blanksCount == 0 || m_isPlay || m_framesCount <= 1)
		return false;

	//enable blanks only when the blank button is pressed
	if (m_enableBlankFrameButton && !m_enableBlankFrameButton->isChecked())
		return false;

	if (m_blanksToDraw > 1 ||
		(m_blanksToDraw == 0 &&
		 ((m_reverse && m_currentFrame - m_step < from) || (!m_reverse && m_currentFrame + m_step > to)))) //we are on the last frame of the loop
	{
		m_blanksToDraw = (m_blanksToDraw == 0 ? m_blanksCount : m_blanksToDraw - 1);
		m_settings.m_blankColor = m_blankColor;
		m_settings.m_drawBlankFrame = true;
		m_consoleOwner->onDrawFrame(from, m_settings);
		m_settings.m_drawBlankFrame = false;
		return true;
	}

	m_blanksToDraw = 0;
	return false;
}

//----------------------------------------------------------------------------

void FlipConsole::onNextFrame(int fps)
{
	if (fps < 0) //can be negative only if is a linked console; it means that the master console is playing backward
	{
		bool reverse = m_reverse;
		m_reverse = true;
		fps = -fps;
		playNextFrame();
		m_reverse = reverse;
	} else
		playNextFrame();

	if (fps == -1)
		return;
	if (m_fpsLabel)
		m_fpsLabel->setText(tr(" FPS ") + QString::number(fps * tsign(m_fps)) + "/");
	if (m_fpsField) {
		if (fps == abs(m_fps))
			m_fpsField->setLineEditBackgroundColor(Qt::green);
		else
			m_fpsField->setLineEditBackgroundColor(Qt::red);
	}
}

//----------------------------------------------------------------------------

void FlipConsole::playNextFrame()
{
	int from = m_from, to = m_to;
	if (m_markerFrom <= m_markerTo)
		from = m_markerFrom, to = m_markerTo;

	if (m_framesCount == 0 || (m_isPlay && m_currentFrame == (m_reverse ? from : to))) {
		doButtonPressed(ePause);
		setChecked(m_isPlay ? ePlay : eLoop, false);
		setChecked(ePause, true);
		if (Preferences::instance()->rewindAfterPlaybackEnabled())
			m_currentFrame = (m_reverse ? to : from);
		emit playStateChanged(false);
	} else {
		if (drawBlanks(from, to))
			return;

		if (m_reverse)
			m_currentFrame = ((m_currentFrame - m_step < from) ? to : m_currentFrame - m_step);
		else
			m_currentFrame = ((m_currentFrame + m_step > to) ? from : m_currentFrame + m_step);
	}

	m_currFrameSlider->setValue(m_currentFrame);
	m_editCurrFrame->setText(QString::number(m_currentFrame));
	m_settings.m_blankColor = TPixel::Transparent;
	m_settings.m_recomputeIfNeeded = true;
	m_consoleOwner->onDrawFrame(m_currentFrame, m_settings);
}

//-----------------------------------------------------------------------------

void FlipConsole::updateCurrentFPS(int val)
{
	setCurrentFPS(val);
	m_fpsSlider->setValue(m_fps);
}

//-----------------------------------------------------------------------------

void FlipConsole::setFrameRate(int val)
{
	if (!m_fpsSlider)
		return;
	m_fpsSlider->setValue(val);
	setCurrentFPS(val);
}

//-----------------------------------------------------------------------------

void FlipConsole::setCurrentFPS(bool dragging)
{

	setCurrentFPS(m_fpsField->getValue());
	m_fpsSlider->setValue(m_fps);
}

//-----------------------------------------------------------------------------

void FlipConsole::setCurrentFPS(int val)
{
	if (m_fps == val)
		return;

	if (val == 0)
		val = 1;
	m_fps = val;
	m_fpsField->setValue(m_fps);

	if (m_playbackExecutor.isRunning() || m_isLinkedPlaying)
		m_reverse = (val < 0);

	if (m_fpsLabel)
		m_fpsLabel->setText(tr(" FPS "));
	if (m_fpsField)
		m_fpsField->setLineEditBackgroundColor(Qt::transparent);

	m_playbackExecutor.resetFps(m_fps);
}

//-----------------------------------------------------------------------------

void FlipConsole::createButton(UINT buttonMask, const char *iconStr, const QString &tip, bool checkable, QActionGroup *group)
{
	QIcon icon = createQIconPNG(iconStr);
	QAction *action = new QAction(icon, tip, m_playToolBar);
	action->setData(QVariant(buttonMask));
	action->setCheckable(checkable);
	if (group)
		group->addAction(action);
	m_actions[(EGadget)buttonMask] = action;
	m_playToolBar->addAction(action);
}

//-----------------------------------------------------------------------------

QAction *FlipConsole::createCheckedButtonWithBorderImage(UINT buttonMask, const char *iconStr, const QString &tip, bool checkable, QActionGroup *group, const char *cmdId)
{
	QIcon icon = createQIconPNG(iconStr);
	QWidgetAction *action = new QWidgetAction(m_playToolBar);
	action->setIcon(icon);
	action->setToolTip(tip);
	action->setData(QVariant(buttonMask));
	action->setCheckable(checkable);
	if (group)
		group->addAction(action);
	QToolButton *button = new QToolButton(m_playToolBar);
	button->setDefaultAction(action);

	m_buttons[(EGadget)buttonMask] = button;

	if (cmdId) {
		QAction *a = CommandManager::instance()->getAction(cmdId);
		if (a)
			button->addAction(a);
	}

	action->setDefaultWidget(button);
	button->setObjectName("chackableButtonWithImageBorder");
	connect(button, SIGNAL(triggered(QAction *)), this, SLOT(onButtonPressed(QAction *)));
	//connect(action, SIGNAL(toggled(bool)), button, SLOT(setChecked(bool)));
	m_playToolBar->addAction(action);
	return action;
}

//-----------------------------------------------------------------------------

QAction *FlipConsole::createDoubleButton(UINT buttonMask1, UINT buttonMask2,
										 const char *iconStr1, const char *iconStr2,
										 const QString &tip1, const QString &tip2,
										 QActionGroup *group, DoubleButton *&widget)
{
	QAction *action1 = new QAction(createQIconPNG(iconStr1), tip1, m_playToolBar);
	QAction *action2 = new QAction(createQIconPNG(iconStr2), tip2, m_playToolBar);
	m_actions[(EGadget)buttonMask1] = action1;
	m_actions[(EGadget)buttonMask2] = action2;

	action1->setData(QVariant(buttonMask1));
	action1->setCheckable(true);
	action2->setData(QVariant(buttonMask2));
	action2->setCheckable(true);

	if (group) {
		group->addAction(action1);
		group->addAction(action2);
	}

	widget = new DoubleButton(action1, action2, this);
	return m_playToolBar->addWidget(widget);

	//m_playToolBar->addAction(action1);
	//m_playToolBar->addAction(action2);
}

//-----------------------------------------------------------------------------

void FlipConsole::createOnOffButton(UINT buttonMask, const char *iconStr, const QString &tip, QActionGroup *group)
{
	QIcon icon = createQIconOnOffPNG(iconStr);
	QAction *action = new QAction(icon, tip, m_playToolBar);
	action->setData(QVariant(buttonMask));
	action->setCheckable(true);
	if (group)
		group->addAction(action);
	m_playToolBar->addAction(action);
	m_actions[(EGadget)buttonMask] = action;
}

//----------------------------------------------------------------------------------------------

void FlipConsole::addMenuItem(UINT id, const QString &text, QMenu *menu)
{
	QAction *a = new QAction(text, menu);
	a->setCheckable(true);
	a->setChecked(id & m_customizeMask);
	a->setData(QVariant(id));
	menu->addAction(a);
}

//----------------------------------------------------------------------------------------------

void FlipConsole::onCustomizeButtonPressed(QAction *a)
{
	UINT id = a->data().toUInt();
	if (a->isChecked())
		m_customizeMask = m_customizeMask | id;
	else
		m_customizeMask = m_customizeMask & (~id);

	QSettings().setValue(m_customizeId, QString::number(m_customizeMask));

	applyCustomizeMask();
}

//----------------------------------------------------------------------------------------------
void FlipConsole::applyCustomizeMask()
{
	enableButton(eSave, m_customizeMask & eShowSave);
	//if(m_saveSep)
	//  m_saveSep->setVisible(m_customizeMask&eShowSave);

	enableButton(eSaveImg, m_customizeMask & eShowCompare);
	enableButton(eCompare, m_customizeMask & eShowCompare);
	if (m_compareSep)
		m_compareSep->setVisible(m_customizeMask & eShowCompare);

	enableButton(eDefineSubCamera, m_customizeMask & eShowDefineSubCamera);
	enableButton(eDefineLoadBox, m_customizeMask & eShowDefineLoadBox);
	enableButton(eUseLoadBox, m_customizeMask & eShowUseLoadBox);
	if (m_subcamSep)
		m_subcamSep->setVisible(
			m_customizeMask & eShowDefineSubCamera ||
			m_customizeMask & eShowDefineLoadBox ||
			m_customizeMask & eShowUseLoadBox);

	enableButton(eWhiteBg, m_customizeMask & eShowBg);
	enableButton(eBlackBg, m_customizeMask & eShowBg);
	enableButton(eCheckBg, m_customizeMask & eShowBg);
	if (m_bgSep)
		m_bgSep->setVisible(m_customizeMask & eShowBg);

	if (m_fpsLabel && m_fpsSlider && m_fpsField) {
		m_fpsLabel->setVisible(m_customizeMask & eShowFramerate);
		m_fpsSlider->setVisible(m_customizeMask & eShowFramerate);
		m_fpsField->setVisible(m_customizeMask & eShowFramerate);
	}

	enableButton(eFirst, m_customizeMask & eShowVcr);
	enableButton(ePrev, m_customizeMask & eShowVcr);
	enableButton(ePause, m_customizeMask & eShowVcr);
	enableButton(ePlay, m_customizeMask & eShowVcr);
	enableButton(eLoop, m_customizeMask & eShowVcr);
	enableButton(eNext, m_customizeMask & eShowVcr);
	enableButton(eLast, m_customizeMask & eShowVcr);

	if (m_vcrSep)
		m_vcrSep->setVisible(m_customizeMask & eShowVcr);

	enableButton(eMatte, m_customizeMask & eShowcolorFilter);
	enableButton(eHisto, m_customizeMask & eShowHisto);
	if (m_histoSep)
		m_histoSep->setVisible(m_customizeMask & eShowHisto);

	if (m_doubleRedAction) {
		m_doubleRedAction->setVisible(m_customizeMask & eShowcolorFilter);
		m_doubleGreenAction->setVisible(m_customizeMask & eShowcolorFilter);
		m_doubleBlueAction->setVisible(m_customizeMask & eShowcolorFilter);
	} else {
		enableButton(eRed, m_customizeMask & eShowcolorFilter);
		enableButton(eGreen, m_customizeMask & eShowcolorFilter);
		enableButton(eBlue, m_customizeMask & eShowcolorFilter);
	}

	if (m_colorFilterGroup)
		m_colorFilterGroup->setVisible(m_customizeMask & eShowcolorFilter);

	if (m_colorFilterSep)
		m_colorFilterSep->setVisible(m_customizeMask & eShowcolorFilter);

	if (m_customAction) {
		bool visible = bool(m_customizeMask & eShowCustom);

		m_customAction->setVisible(visible);
		m_customSep->setVisible(visible);
	}

	enableButton(eFilledRaster, m_customizeMask & eShowFilledRaster);
	if (m_filledRasterSep)
		m_filledRasterSep->setVisible(m_customizeMask & eShowFilledRaster);

	update();
}

//----------------------------------------------------------------------------------------------

void FlipConsole::createCustomizeMenu(bool withCustomWidget)
{
	if (m_gadgetsMask & eCustomize) {

		QIcon icon = createQIconPNG("options");
		QToolButton *button = new QToolButton();
		button->setIcon(icon);
		button->setPopupMode(QToolButton::MenuButtonPopup);
		button->setObjectName("flipCustomize");
		button->setStyleSheet("#flipCustomize { background-color: transparent; } #flipCustomize::menu-button { background-color: transparent; image: none; width: 34px; } #flipCustomize::menu-arrow { image: none; }");

		QMenu *menu = new QMenu();
		button->setMenu(menu);

		m_playToolBar->addWidget(button);
		m_playToolBar->addSeparator();

		if (m_gadgetsMask & eSave)
			addMenuItem(eShowSave, tr("Save"), menu);

		if (m_gadgetsMask & eSaveImg || m_gadgetsMask & eCompare)
			addMenuItem(eShowCompare, tr("Snapshot"), menu);

		if (m_gadgetsMask & eDefineSubCamera)
			addMenuItem(eShowDefineSubCamera, tr("Define Sub-camera"), menu);
		if (m_gadgetsMask & eDefineLoadBox)
			addMenuItem(eShowDefineLoadBox, tr("Define Loading Box"), menu);
		if (m_gadgetsMask & eUseLoadBox)
			addMenuItem(eShowUseLoadBox, tr("Use Loading Box"), menu);

		if (m_gadgetsMask & eWhiteBg || m_gadgetsMask & eBlackBg || m_gadgetsMask & eCheckBg)
			addMenuItem(eShowBg, tr("Background Colors"), menu);
		if (m_gadgetsMask & eRate)
			addMenuItem(eShowFramerate, tr("Framerate"), menu);

		addMenuItem(eShowVcr, tr("Playback Controls"), menu);

		if ((m_gadgetsMask & eRed) || (m_gadgetsMask & eGreen) ||
			(m_gadgetsMask & eBlue) || (m_gadgetsMask & eMatte))
			addMenuItem(eShowcolorFilter, tr("Color Channels"), menu);

		if (withCustomWidget)
			addMenuItem(eShowCustom, tr("Set Key"), menu);

		if (m_gadgetsMask & eHisto)
			addMenuItem(eShowHisto, tr("Histogram"), menu);

		if (m_gadgetsMask & eFilledRaster)
			addMenuItem(eFilledRaster, tr("Display Areas as Filled"), menu);

		bool ret = connect(menu, SIGNAL(triggered(QAction *)), this, SLOT(onCustomizeButtonPressed(QAction *)));
		assert(ret);
	}
}

//-----------------------------------------------------------------------------

void FlipConsole::createPlayToolBar(bool withCustomWidget)
{
	bool ret = true;

	m_playToolBar = new QToolBar(this);
	m_playToolBar->setMovable(false);
	m_playToolBar->setObjectName("FlipConsolePlayToolBar");
	//	m_playToolBar->setObjectName("chackableButtonToolBar");

	//m_playToolBar->setSizePolicy(QSizePolicy::Fixed,QSizePolicy::Fixed);

	createCustomizeMenu(withCustomWidget);

	if (m_gadgetsMask & eSave) {
		//just reuse the icon file named "savepalette"
		createButton(eSave, "savepalette", tr("&Save Images"), false);
		//m_saveSep = m_playToolBar->addSeparator();
	}

	// snapshot
	bool separator = false;
	if (m_gadgetsMask & eSaveImg) {
		createButton(eSaveImg, "snapshot", tr("&Snapshot"), false);
		separator = true;
	}
	if (m_gadgetsMask & eCompare) {
		createButton(eCompare, "compare", tr("&Compare to Snapshot"), true);
		separator = true;
	}
	if (separator)
		m_compareSep = m_playToolBar->addSeparator();

	// sub camera
	separator = false;
	if (m_gadgetsMask & eDefineSubCamera) {
		createButton(eDefineSubCamera, "define_subcamera_preview", tr("&Define Sub-camera"), true);
		separator = true;
	}
	if (m_gadgetsMask & eDefineLoadBox) {
		createButton(eDefineLoadBox, "define_subcamera_preview", tr("&Define Loading Box"), true);
		separator = true;
	}
	if (m_gadgetsMask & eUseLoadBox) {
		createButton(eUseLoadBox, "use_subcamera_preview", tr("&Use Loading Box"), true);
		separator = true;
	}
	if (separator)
		m_subcamSep = m_playToolBar->addSeparator();

	// preview BGs
	QActionGroup *group = new QActionGroup(m_playToolBar);
	if (m_gadgetsMask & eWhiteBg)
		createOnOffButton(eWhiteBg, "preview_white", tr("&White Background"), group);
	if (m_gadgetsMask & eBlackBg)
		createOnOffButton(eBlackBg, "preview_black", tr("&Black Background"), group);
	if (m_gadgetsMask & eCheckBg)
		createOnOffButton(eCheckBg, "preview_checkboard", tr("&Checkered Background"), group);
	if (m_gadgetsMask & eWhiteBg)
		m_bgSep = m_playToolBar->addSeparator();

	// VCR buttons
	QActionGroup *playGroup = new QActionGroup(m_playToolBar);
	if (m_gadgetsMask & eFirst)
		createButton(eFirst, "framefirst", tr("&First Frame"), false);
	if (m_gadgetsMask & ePrev)
		createButton(ePrev, "frameprev", tr("&Previous Frame"), false);
	if (m_gadgetsMask & ePause)
		createCheckedButtonWithBorderImage(ePause, "pause", tr("Pause"), true, playGroup, "A_Flip_Pause");
	if (m_gadgetsMask & ePlay)
		createCheckedButtonWithBorderImage(ePlay, "play", tr("Play"), true, playGroup, "A_Flip_Play");
	if (m_gadgetsMask & eLoop)
		createCheckedButtonWithBorderImage(eLoop, "loop", tr("Loop"), true, playGroup, "A_Flip_Loop");

	if (m_gadgetsMask & eNext)
		createButton(eNext, "framenext", tr("&Next frame"), false);
	if (m_gadgetsMask & eLast)
		createButton(eLast, "framelast", tr("&Last Frame"), false);

	// separator
	if (m_gadgetsMask & ePlay)
		m_vcrSep = m_playToolBar->addSeparator();

	//Channel Selector
	m_colorFilterGroup = new QActionGroup(m_playToolBar);
	m_colorFilterGroup->setExclusive(false);
	if ((m_gadgetsMask & eRed) && !(m_gadgetsMask & eGRed))
		createButton(eRed, "channelred", tr("Red Channel"), true);
	else if ((m_gadgetsMask & eRed) && (m_gadgetsMask & eGRed))
		m_doubleRedAction = createDoubleButton(eRed, eGRed, "half_R", "half_bw", tr("Red Channel"), tr("Red Channel in Grayscale"), m_colorFilterGroup, m_doubleRed);

	if ((m_gadgetsMask & eGreen) && !(m_gadgetsMask & eGGreen))
		createButton(eGreen, "channelgreen", tr("Green Channel"), true);
	else if ((m_gadgetsMask & eGreen) && (m_gadgetsMask & eGGreen))
		m_doubleGreenAction = createDoubleButton(eGreen, eGGreen, "half_G", "half_bw", tr("Green Channel"), tr("Green Channel in Grayscale"), m_colorFilterGroup, m_doubleGreen);

	if ((m_gadgetsMask & eBlue) && !(m_gadgetsMask & eGBlue))
		createButton(eBlue, "channelblue", tr("Blue Channel"), true);
	else if ((m_gadgetsMask & eBlue) && (m_gadgetsMask & eGBlue))
		m_doubleBlueAction = createDoubleButton(eBlue, eGBlue, "half_B", "half_bw", tr("Blue Channel"), tr("Blue Channel in Grayscale"), m_colorFilterGroup, m_doubleBlue);

	ret = ret && connect(m_colorFilterGroup, SIGNAL(triggered(QAction *)), this, SLOT(onButtonPressed(QAction *)));

	if (m_gadgetsMask & eMatte)
		createButton(eMatte, "channelmatte", tr("Alpha Channel"), true);

	// separator
	if (m_gadgetsMask & eRed || m_gadgetsMask & eGRed)
		m_colorFilterSep = m_playToolBar->addSeparator();

	// Sound & Histogram
	if (m_gadgetsMask & eSound || m_gadgetsMask & eHisto) {
		if (m_gadgetsMask & eSound) {
			createButton(eSound, "sound", tr("&Soundtrack "), true);
			m_soundSep = m_playToolBar->addSeparator();
		}
		if (m_gadgetsMask & eHisto) {
			createButton(eHisto, "histograms", tr("&Histogram"), false);
			m_histoSep = m_playToolBar->addSeparator();
		}
	}

	if (m_gadgetsMask & eFilledRaster) {
		createOnOffButton(eFilledRaster, "preview_white", tr("&Display Areas as Filled"), 0);
		m_filledRasterSep = m_playToolBar->addSeparator();
	}

	//for all actions in this toolbar
	ret = ret && connect(m_playToolBar, SIGNAL(actionTriggered(QAction *)), this, SLOT(onButtonPressed(QAction *)));

	setChecked(ePause, true);
	setChecked(eWhiteBg, FlipBookWhiteBgToggle);
	setChecked(eBlackBg, FlipBookBlackBgToggle);
	setChecked(eCheckBg, FlipBookCheckBgToggle);
	assert(ret);
}

//-----------------------------------------------------------------------------

void FlipConsole::enableBlanks(bool state)
{
	m_drawBlanksEnabled = state;
	m_blankColor = TPixel::Transparent;
	if (m_drawBlanksEnabled)
		Preferences::instance()->getBlankValues(m_blanksCount, m_blankColor);
	else {
		m_blanksCount = 0;
		m_blankColor = TPixel::Transparent;
	}
}

//-----------------------------------------------------------------------------
/*! call consoleOwner->onDrawFrame() intead of emitting drawFrame signal
*/
void FlipConsole::showCurrentFrame()
{
	m_consoleOwner->onDrawFrame(m_currentFrame, m_settings);
}

//-----------------------------------------------------------------------------

void FlipConsole::setChecked(UINT button, bool state)
{
	int i;
	if (m_playToolBar) {
		QObjectList objectList = m_playToolBar->children();
		for (i = 0; i < (int)objectList.size(); i++) {
			QAction *action = dynamic_cast<QAction *>(objectList[i]);
			if (!action) {
				QToolButton *toolButton = dynamic_cast<QToolButton *>(objectList[i]);
				if (!toolButton)
					continue;
				action = toolButton->defaultAction();
			}
			if (action && action->data().toUInt() == button) {
				action->setChecked(state);
				return;
			}
		}
	}

	if (m_colorFilterGroup) {
		QList<QAction *> list = m_colorFilterGroup->actions();
		for (i = 0; i < (int)list.size(); i++)
			if (list[i]->data().toUInt() == button) {
				list[i]->setChecked(state);
				return;
			}
	}
}

//-----------------------------------------------------------------------------

bool FlipConsole::isChecked(UINT button) const
{
	QList<QAction *> list;
	int i;

	if (m_playToolBar) {
		list = m_playToolBar->actions();
		for (i = 0; i < (int)list.size(); i++)
			if (list[i]->data().toUInt() == button)
				return list[i]->isChecked();
	}

	if (m_colorFilterGroup) {
		list = m_colorFilterGroup->actions();
		for (i = 0; i < (int)list.size(); i++)
			if (list[i]->data().toUInt() == button)
				return list[i]->isChecked();
	}

	return false;
}

//-----------------------------------------------------------------------------

void FlipConsole::pressLinkedConsoleButton(UINT button, FlipConsole *parent)
{
	int i;
	assert(parent);

	for (i = 0; i < m_visibleConsoles.size(); i++) {
		FlipConsole *console = m_visibleConsoles.at(i);
		if (console->m_isLinkable && console != parent) {
			console->setChecked(button, parent ? parent->isChecked(button) : true);
			console->doButtonPressed(button);
		}
	}
}

//-----------------------------------------------------------------------------

void FlipConsole::onButtonPressed(int button)
{
	// if(!isVisible()) return;
	makeCurrent();
	doButtonPressed(button);

	if (m_areLinked)
		pressLinkedConsoleButton(button, this);
}

//-----------------------------------------------------------------------------
void FlipConsole::pressButton(EGadget buttonId)
{
	if (m_buttons.contains(buttonId)) {
		//If you press "play" or "loop play" button while playing, which means "pause"
		if (m_playbackExecutor.isRunning() && (buttonId == ePlay || buttonId == eLoop)) {
			m_buttons[ePause]->click();
			return;
		}
		m_buttons[buttonId]->click();
	} else if (m_actions.contains(buttonId))
		m_actions[buttonId]->trigger();
}

//-----------------------------------------------------------------------------

void FlipConsole::onLoadBox(bool isDefine)
{
	int shrink, dummy;

	Preferences::instance()->getViewValues(shrink, dummy);

	if (shrink != 1) {
#ifdef _WIN32
		MessageBox(0, "Cannot use loading box with a shrink factor! ", "Warning", MB_OK);
#endif
		setChecked(eUseLoadBox, false);
		setChecked(eDefineLoadBox, false);
		m_settings.m_useLoadbox = m_settings.m_defineLoadbox = false;
		return;
	}

	if (isDefine)
		m_settings.m_defineLoadbox = !m_settings.m_defineLoadbox;
	else
		m_settings.m_useLoadbox = !m_settings.m_useLoadbox;

	if (m_settings.m_defineLoadbox && m_settings.m_useLoadbox) {
		setChecked(isDefine ? eUseLoadBox : eDefineLoadBox, false);
		if (isDefine)
			m_settings.m_useLoadbox = false;
		else
			m_settings.m_defineLoadbox = false;
	}

	m_consoleOwner->onDrawFrame(m_currentFrame, m_settings);
	return;
}

//-----------------------------------------------------------------------------

void FlipConsole::doButtonPressed(UINT button)
{
	emit buttonPressed((FlipConsole::EGadget)button);

	int from = m_from, to = m_to;
	// When the level editing mode, ignore the preview frame range marker
	if (m_markerFrom <= m_markerTo && m_frameHandle && m_frameHandle->isEditingScene())
		from = m_markerFrom, to = m_markerTo;

	bool linked = m_areLinked && m_isLinkable;

	switch (button) {
	case eFirst:
		m_currentFrame = from;
		CASE ePrev : m_currentFrame = (m_currentFrame - m_step < from) ? from : m_currentFrame - m_step;
		CASE eNext : m_currentFrame = (m_currentFrame + m_step > to) ? to : m_currentFrame + m_step;
		CASE eLast : m_currentFrame = to;
		CASE ePlay : __OR eLoop:
		{
			//if (	  isChecked(ePlay,   false);
			//setChecked(eLoop,   false);
			m_editCurrFrame->disconnect();
			m_currFrameSlider->disconnect();

			m_isPlay = (button == ePlay);

			if (linked && m_isLinkedPlaying)
				return;

			if ((m_fps == 0 || m_framesCount == 0) && m_playbackExecutor.isRunning()) {
				doButtonPressed(ePause);
				if (m_fpsLabel)
					m_fpsLabel->setText(tr(" FPS ") + QString::number(m_fps));
				if (m_fpsField)
					m_fpsField->setLineEditBackgroundColor(Qt::transparent);
				return;
			}
			if (m_fpsLabel)
				m_fpsLabel->setText(tr(" FPS	") + "/");
			if (m_fpsField)
				m_fpsField->setLineEditBackgroundColor(Qt::red);

			m_playbackExecutor.resetFps(m_fps);
			if (!m_playbackExecutor.isRunning())
				m_playbackExecutor.start();
			m_isLinkedPlaying = linked;

			m_reverse = (m_fps < 0);

			if (!linked) {
				//if the play button pressed at the end frame, then go back to the start frame and play
				if (m_currentFrame <= from || m_currentFrame >= to) //the first frame of the playback is drawn right now
					m_currentFrame = m_reverse ? to : from;
				m_settings.m_recomputeIfNeeded = true;
				m_consoleOwner->onDrawFrame(m_currentFrame, m_settings);
			}

			emit playStateChanged(true);
			return;
		}
		CASE ePause : m_isLinkedPlaying = false;

		if (m_playbackExecutor.isRunning())
			m_playbackExecutor.abort();

		m_isPlay = false;
		m_blanksToDraw = 0;

		m_consoleOwner->swapBuffers();
		m_consoleOwner->changeSwapBehavior(true);

		if (m_settings.m_blankColor != TPixel::Transparent) {
			m_settings.m_blankColor = TPixel::Transparent;
			m_settings.m_recomputeIfNeeded = true;
			m_consoleOwner->onDrawFrame(m_currentFrame, m_settings);
		}
		if (m_fpsLabel)
			m_fpsLabel->setText(tr(" FPS "));
		if (m_fpsField)
			m_fpsField->setLineEditBackgroundColor(Qt::transparent);
		//setChecked(ePlay,   false);
		//setChecked(eLoop,   false);
		connect(m_editCurrFrame, SIGNAL(editingFinished()), this, SLOT(OnSetCurrentFrame()));
		connect(m_currFrameSlider, SIGNAL(flipSliderReleased()), this, SLOT(OnFrameSliderRelease()));
		connect(m_currFrameSlider, SIGNAL(flipSliderPressed()), this, SLOT(OnFrameSliderPress()));
		connect(m_currFrameSlider, SIGNAL(valueChanged(int)), this, SLOT(OnSetCurrentFrame(int)));
		connect(m_currFrameSlider, SIGNAL(flipSliderReleased()), this, SLOT(onSliderRelease()));
		emit playStateChanged(false);
		return;
		/*CASE eMatte:
		if (isChecked(eMatte))
			{
			//setChecked(eRed,   false);
			//setChecked(eGreen, false);
			//setChecked(eBlue,  false);
			setChecked(eGRed,   false);
			setChecked(eGGreen, false);
			setChecked(eGBlue,  false);
			m_settings.m_colorMask = TRop::MChan;
			}
		else
			m_settings.m_colorMask = 0;
			
	if (m_doubleRed)
    {
    m_doubleRed->update();
	  m_doubleGreen->update();
	  m_doubleBlue->update();
	  }*/

		CASE eGRed : __OR eGGreen : __OR eGBlue : __OR eRed : __OR eGreen : __OR eBlue : __OR eMatte:
		{

			if (button != eGRed)
				setChecked(eGRed, false);
			if (button != eGGreen)
				setChecked(eGGreen, false);
			if (button != eGBlue)
				setChecked(eGBlue, false);

			if (button == eGRed || button == eGGreen || button == eGBlue) {
				m_settings.m_greytones = isChecked(button);
				setChecked(eRed, false);
				setChecked(eGreen, false);
				setChecked(eBlue, false);
				setChecked(eMatte, false);
			} else
				m_settings.m_greytones = false;

			if (m_doubleRed) {
				m_doubleRed->update();
				m_doubleGreen->update();
				m_doubleBlue->update();
			}

			int colorMask = 0;
			if (isChecked(eRed) || isChecked(eGRed))
				colorMask = colorMask | TRop::RChan;
			if (isChecked(eGreen) || isChecked(eGGreen))
				colorMask = colorMask | TRop::GChan;
			if (isChecked(eBlue) || isChecked(eGBlue))
				colorMask = colorMask | TRop::BChan;
			if (isChecked(eMatte))
				colorMask = colorMask | TRop::MChan;

			if (colorMask == (TRop::RChan | TRop::GChan | TRop::BChan) ||
				colorMask == (TRop::RChan | TRop::GChan | TRop::BChan | TRop::MChan))
				m_settings.m_colorMask = 0;
			else
				m_settings.m_colorMask = colorMask;
		}
		CASE eSound :
			//emit soundEnabled(isChecked(eSound));
			CASE eWhiteBg : __OR eBlackBg : __OR eCheckBg : m_settings.m_bg = (EGadget)button;
		FlipBookWhiteBgToggle = isChecked(eWhiteBg);
		FlipBookBlackBgToggle = isChecked(eBlackBg);
		FlipBookCheckBgToggle = isChecked(eCheckBg);
		CASE FlipConsole::eCompare : m_settings.m_doCompare = !m_settings.m_doCompare;
		CASE eHisto : CASE eSaveImg : CASE eSave :
									  //nothing to do
									  return;
		CASE eDefineSubCamera :
			//nothing to do
			return;
		CASE eDefineLoadBox : onLoadBox(true);
		CASE eUseLoadBox : onLoadBox(false);
		CASE eFilledRaster : return;
	DEFAULT:
		assert(false);
	}

	m_currFrameSlider->setValue(m_currentFrame);
	m_editCurrFrame->setText(QString::number(m_currentFrame));

	m_consoleOwner->onDrawFrame(m_currentFrame, m_settings);
}

//--------------------------------------------------------------------

QFrame *FlipConsole::createFrameSlider()
{
	QFrame *frameSliderFrame = new QFrame(this);

	m_editCurrFrame = new IntLineEdit(frameSliderFrame, m_currentFrame);
	m_editCurrFrame->setToolTip(tr("Set the current frame"));
	m_editCurrFrame->setFixedWidth(40);

	m_currFrameSlider = new FlipSlider(frameSliderFrame);
	m_currFrameSlider->setToolTip(tr("Drag to play the animation"));

	m_currFrameSlider->setRange(0, 0);
	m_currFrameSlider->setValue(0);

	if (m_drawBlanksEnabled) {
		m_enableBlankFrameButton = new QPushButton(this);
		m_enableBlankFrameButton->setCheckable(true);
		m_enableBlankFrameButton->setChecked(true);

		m_enableBlankFrameButton->setFixedHeight(24);
		m_enableBlankFrameButton->setFixedWidth(66);
		m_enableBlankFrameButton->setObjectName("enableBlankFrameButton");
	}

	//layout
	QHBoxLayout *frameSliderLayout = new QHBoxLayout();
	frameSliderLayout->setSpacing(5);
	frameSliderLayout->setMargin(2);
	{
		frameSliderLayout->addWidget(m_editCurrFrame, 0);
		frameSliderLayout->addWidget(m_currFrameSlider, 1);
		if (m_drawBlanksEnabled)
			frameSliderLayout->addWidget(m_enableBlankFrameButton, 0);
	}
	frameSliderFrame->setLayout(frameSliderLayout);

	connect(m_editCurrFrame, SIGNAL(editingFinished()),
			this, SLOT(OnSetCurrentFrame()));
	connect(m_currFrameSlider, SIGNAL(valueChanged(int)),
			this, SLOT(OnSetCurrentFrame(int)));
	connect(m_currFrameSlider, SIGNAL(flipSliderReleased()),
			this, SLOT(OnFrameSliderRelease()));

	return frameSliderFrame;
}

//--------------------------------------------------------------------

QFrame *FlipConsole::createFpsSlider()
{
	QFrame *fpsSliderFrame = new QFrame(this);
	//frame per second
	m_fpsLabel = new QLabel(QString(" FPS -- /"), fpsSliderFrame);
	m_fpsSlider = new QScrollBar(Qt::Horizontal, fpsSliderFrame);
	m_fpsField = new IntLineEdit(fpsSliderFrame, m_fps, -60, 60);
	m_fpsField->setFixedWidth(40);

	m_fpsLabel->setMinimumWidth(m_fpsLabel->fontMetrics().width("_FPS_24___"));
	m_fpsLabel->setAlignment(Qt::AlignRight | Qt::AlignVCenter);
	m_fpsSlider->setObjectName("ViewerFpsSlider");
	m_fpsSlider->setRange(-60, 60);
	m_fpsSlider->setValue(m_fps);
	m_fpsSlider->setToolTip(tr("Set the playback frame rate"));
	m_fpsSlider->setContextMenuPolicy(Qt::NoContextMenu);

	QHBoxLayout *hLay = new QHBoxLayout();
	hLay->setSpacing(0);
	hLay->setMargin(0);
	{
		hLay->addWidget(m_fpsLabel, 0);
		hLay->addWidget(m_fpsField, 0);
		hLay->addWidget(m_fpsSlider, 1);
	}
	fpsSliderFrame->setLayout(hLay);

	connect(m_fpsSlider, SIGNAL(valueChanged(int)), this, SLOT(setCurrentFPS(int)));
	connect(m_fpsField, SIGNAL(editingFinished()), this, SLOT(onFPSEdited()));

	return fpsSliderFrame;
}

//--------------------------------------------------------------------

void FlipConsole::onFPSEdited(void)
{
	// this will emit fpsSlider->ValueChanged as well
	m_fpsSlider->setValue(m_fpsField->getValue());
}

//--------------------------------------------------------------------

void FlipConsole::setFrameRange(int from, int to, int step, int current)
{
	if (from != m_from || to != m_to || step != m_step) {
		m_from = from;
		m_to = to;
		m_step = step;
		m_to -= (m_to - m_from) % m_step;
		m_framesCount = (m_to - m_from) / m_step + 1;
		m_currFrameSlider->blockSignals(true);
		//m_currFrameSlider->setRange(0, m_framesCount-1);
		m_currFrameSlider->setRange(m_from, m_to);
		m_currFrameSlider->setSingleStep(m_step);
		m_currFrameSlider->blockSignals(false);
	}

	if (m_playbackExecutor.isRunning() || m_isLinkedPlaying) //if in playing mode, the slider and the frame field are already set in the timer!
		return;

	// limit the current frame in the range from-to
	if (current < from)
		current = from;
	else if (current > to)
		current = to;

	m_currFrameSlider->blockSignals(true);
	setCurrentFrame(current);
	m_currFrameSlider->blockSignals(false);
}

//--------------------------------------------------------------------

void FlipConsole::incrementCurrentFrame(int delta)
{
	m_currentFrame = m_currentFrame + delta;
	if (m_currentFrame < m_from)
		m_currentFrame += m_to - m_from + 1;
	else if (m_currentFrame > m_to)
		m_currentFrame -= m_to - m_from + 1;

	m_editCurrFrame->setText(QString::number(m_currentFrame));
	m_currFrameSlider->setValue(m_currentFrame);

	m_consoleOwner->onDrawFrame(m_currentFrame, m_settings);
}

//--------------------------------------------------------------------

void FlipConsole::OnSetCurrentFrame()
{
	int newFrame = m_editCurrFrame->text().toInt();
	if (m_step > 1) {
		newFrame -= ((newFrame - m_from) % m_step);
		m_editCurrFrame->setText(QString::number(newFrame));
	}

	int i, deltaFrame = newFrame - m_currentFrame;

	if (m_framesCount == 0)
		m_editCurrFrame->setText(QString::number(1));

	if (m_framesCount == 0 || newFrame == m_currentFrame || newFrame == 0)
		return;

	if (newFrame > m_to) {
		m_editCurrFrame->setText(QString::number(m_currentFrame));
		return;
	}

	m_currentFrame = newFrame;
	m_currFrameSlider->setValue(m_currentFrame);

	m_consoleOwner->onDrawFrame(m_currentFrame, m_settings);

	if (m_areLinked)
		for (i = 0; i < m_visibleConsoles.size(); i++) {
			FlipConsole *console = m_visibleConsoles.at(i);
			if (console->m_isLinkable && console != this)
				console->incrementCurrentFrame(deltaFrame);
		}
}

//--------------------------------------------------------------------

void FlipConsole::onSliderRelease()
{
	emit sliderReleased();
}

//--------------------------------------------------------------------
void FlipConsole::OnFrameSliderRelease()
{

	m_settings.m_recomputeIfNeeded = true;
	m_currentFrame = -1;
	OnSetCurrentFrame();
}

void FlipConsole::OnFrameSliderPress()
{

	m_settings.m_recomputeIfNeeded = false;
}

//---------------------
//----------------------------------

void FlipConsole::OnSetCurrentFrame(int index)
{
	if (m_framesCount == 0)
		return;

	if (index == m_currentFrame)
		return;

	int deltaFrame = index - m_currentFrame;

	m_currentFrame = index;

	assert(m_currentFrame <= m_to);
	m_editCurrFrame->setText(QString::number(m_currentFrame));

	m_consoleOwner->onDrawFrame(m_currentFrame, m_settings);

	if (m_areLinked)
		for (int i = 0; i < m_visibleConsoles.size(); i++) {
			FlipConsole *console = m_visibleConsoles.at(i);
			if (console->m_isLinkable && console != this)
				console->incrementCurrentFrame(deltaFrame);
		}
}

//--------------------------------------------------------------------

void FlipConsole::setCurrentFrame(int frame, bool forceResetting)
{
	m_currentFrame = (frame == -1) ? m_from : frame;
	if ((m_playbackExecutor.isRunning() || m_isLinkedPlaying) && !forceResetting) //if in playing mode, the slider and the frame field are already set in the timer!
		return;

	m_editCurrFrame->setValue(m_currentFrame);
	m_currFrameSlider->setValue(m_currentFrame);
}

//--------------------------------------------------------------------

void FlipConsole::enableProgressBar(bool enable)
{
	m_currFrameSlider->setProgressBarEnabled(enable);
}

//--------------------------------------------------------------------

void FlipConsole::setProgressBarStatus(const std::vector<UCHAR> *pbStatus)
{
	m_currFrameSlider->setProgressBarStatus(pbStatus);
}

//--------------------------------------------------------------------

const std::vector<UCHAR> *FlipConsole::getProgressBarStatus() const
{
	return m_currFrameSlider->getProgressBarStatus();
}

//--------------------------------------------------------------------

void FlipConsole::onPreferenceChanged()
{
	if (m_drawBlanksEnabled) {
		Preferences::instance()->getBlankValues(m_blanksCount, m_blankColor);
		if (m_blanksCount == 0) {
			if (m_enableBlankFrameButton->isVisible())
				m_enableBlankFrameButton->hide();
		} else {
			if (m_enableBlankFrameButton->isHidden())
				m_enableBlankFrameButton->show();
			QString buttonText = QString("+%1 Blank").arg(m_blanksCount);
			if (m_blanksCount > 1)
				buttonText += "s";
			m_enableBlankFrameButton->setText(buttonText);

			//--- use white text for dark color and vice versa
			QString textColor;
			QString dimmedTextColor;
			int val = (int)m_blankColor.r * 30 +
					  (int)m_blankColor.g * 59 +
					  (int)m_blankColor.b * 11;
			if (val < 12800) {
				textColor = QString("white");
				dimmedTextColor = QString("rgb(200,200,200)");
			} else {
				textColor = QString("black");
				dimmedTextColor = QString("rgb(55,55,55)");
			}

			int dc = 150;
			QColor lightBevel(tmin(m_blankColor.r + dc, 255),
							  tmin(m_blankColor.g + dc, 255),
							  tmin(m_blankColor.b + dc, 255));
			QColor darkBevel(tmax(m_blankColor.r - dc, 0),
							 tmax(m_blankColor.g - dc, 0),
							 tmax(m_blankColor.b - dc, 0));

			m_enableBlankFrameButton->setStyleSheet(
				QString("#enableBlankFrameButton{ \
							background-color: transparent; \
							padding: 2px;\
							font-weight: bold; \
							font-size: 12px; \
							color: %11;\
							border-style: inset; \
							border-left-color: rgb(%5,%6,%7); \
							border-top-color: rgb(%5,%6,%7); \
							border-right-color: rgb(%8,%9,%10); \
							border-bottom-color: rgb(%8,%9,%10); \
							border-width: 2px; \
							border-radius: 3px; \
						} \
						#enableBlankFrameButton:checked { \
							background-color: rgb(%1,%2,%3); \
							color: %4; \
							border-style: outset; \
							border-left-color: rgb(%8,%9,%10); \
							border-top-color: rgb(%8,%9,%10); \
							border-right-color: rgb(%5,%6,%7); \
							border-bottom-color: rgb(%5,%6,%7); \
						} ")
					.arg(m_blankColor.r)
					.arg(m_blankColor.g)
					.arg(m_blankColor.b)
					.arg(textColor)
					.arg(lightBevel.red())
					.arg(lightBevel.green())
					.arg(lightBevel.blue())
					.arg(darkBevel.red())
					.arg(darkBevel.green())
					.arg(darkBevel.blue())
					.arg(dimmedTextColor));
			m_enableBlankFrameButton->update();
		}
	}
}

//====================================================================

class FlipConsoleActionsCreator : AuxActionsCreator
{

	void createToggleAction(
		QObject *parent,
		const char *cmdId,
		const char *name,
		int buttonId)
	{
		QAction *action = new QAction(name, parent);
		action->setData(QVariant(buttonId));
		CommandManager::instance()->define(cmdId, MiscCommandType, "", action);
	}

public:
	void createActions(QObject *parent)
	{
		/*createToggleAction(parent, "A_Flip_Play",  "Play",  FlipConsole::ePlay);
    createToggleAction(parent, "A_Flip_Pause", "Pause", FlipConsole::ePause);
    createToggleAction(parent, "A_Flip_Loop",  "Loop",  FlipConsole::eLoop);*/
	}
} flipConsoleActionsCreator;

//--------------------------------------------------------------------