// Copyright 2005-2019 The Mumble Developers. All rights reserved.
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file at the root of the
// Mumble source tree or at <https://www.mumble.info/LICENSE>.

#include "mumble_pch.hpp"

#include "OverlayEditorScene.h"

#include "OverlayClient.h"
#include "OverlayUser.h"
#include "OverlayText.h"
#include "User.h"
#include "Channel.h"
#include "Message.h"
#include "Database.h"
#include "NetworkConfig.h"
#include "ServerHandler.h"
#include "MainWindow.h"
#include "GlobalShortcut.h"

// We define a global macro called 'g'. This can lead to issues when included code uses 'g' as a type or parameter name (like protobuf 3.7 does). As such, for now, we have to make this our last include.
#include "Global.h"

OverlayEditorScene::OverlayEditorScene(const OverlaySettings &srcos, QObject *p) : QGraphicsScene(p), os(srcos) {
	tsColor = Settings::Talking;
	uiZoom = 2;

	if (g.ocIntercept)
		uiSize = g.ocIntercept->uiHeight;
	else
		uiSize = 1080.f;

	qgiGroup = new OverlayGroup();
	qgiGroup->setAcceptHoverEvents(true);
	qgiGroup->setPos(0.0f, 0.0f);
	addItem(qgiGroup);

	qgpiMuted = new QGraphicsPixmapItem(qgiGroup);
	qgpiMuted->hide();

	qgpiAvatar = new QGraphicsPixmapItem(qgiGroup);
	qgpiAvatar->hide();

	qgpiName = new QGraphicsPixmapItem(qgiGroup);
	qgpiName->hide();

	qgpiChannel = new QGraphicsPixmapItem(qgiGroup);
	qgpiChannel->hide();

	qgpiBox = new QGraphicsPathItem(qgiGroup);
	qgpiBox->hide();

	qgpiSelected = NULL;

	qgriSelected = new QGraphicsRectItem;
	qgriSelected->hide();

	qgriSelected->setFlag(QGraphicsItem::ItemIgnoresParentOpacity, true);
	qgriSelected->setOpacity(1.0f);
	qgriSelected->setBrush(Qt::NoBrush);
	qgriSelected->setPen(QPen(Qt::black, 4.0f));
	qgriSelected->setZValue(5.0f);

	addItem(qgriSelected);

	qgpiChannel->setZValue(2.0f);
	qgpiName->setZValue(1.0f);
	qgpiMuted->setZValue(3.0f);

	qgpiBox->setZValue(-1.0f);

	resync();
}

#define SCALESIZE(var) iroundf(uiSize * uiZoom * os.qrf##var .width() + 0.5f), iroundf(uiSize * uiZoom * os.qrf##var .height() + 0.5f)

void OverlayEditorScene::updateMuted() {
	QImageReader qir(QLatin1String("skin:muted_self.svg"));
	QSize sz = qir.size();
	sz.scale(SCALESIZE(MutedDeafened), Qt::KeepAspectRatio);
	qir.setScaledSize(sz);
	qgpiMuted->setPixmap(QPixmap::fromImage(qir.read()));

	moveMuted();
}

void OverlayEditorScene::moveMuted() {
	qgpiMuted->setVisible(os.bMutedDeafened);
	qgpiMuted->setPos(OverlayUser::alignedPosition(OverlayUser::scaledRect(os.qrfMutedDeafened, uiSize * uiZoom), qgpiMuted->boundingRect(), os.qaMutedDeafened));
	qgpiMuted->setOpacity(os.fMutedDeafened);
}

void OverlayEditorScene::updateUserName() {
	QString qsName;

	switch (tsColor) {
		case Settings::Passive:
			qsName = Overlay::tr("Silent");
			break;
		case Settings::Talking:
			qsName = Overlay::tr("Talking");
			break;
		case Settings::Whispering:
			qsName = Overlay::tr("Whisper");
			break;
		case Settings::Shouting:
			qsName = Overlay::tr("Shout");
			break;
	}

	const QPixmap &pm = OverlayTextLine(qsName, os.qfUserName).createPixmap(SCALESIZE(UserName), os.qcUserName[tsColor]);
	qgpiName->setPixmap(pm);

	moveUserName();
}

void OverlayEditorScene::moveUserName() {
	qgpiName->setVisible(os.bUserName);
	qgpiName->setPos(OverlayUser::alignedPosition(OverlayUser::scaledRect(os.qrfUserName, uiSize * uiZoom), qgpiName->boundingRect(), os.qaUserName));
	qgpiName->setOpacity(os.fUserName);
}

void OverlayEditorScene::updateChannel() {
	const QPixmap &pm = OverlayTextLine(Overlay::tr("Channel"), os.qfChannel).createPixmap(SCALESIZE(Channel), os.qcChannel);
	qgpiChannel->setPixmap(pm);

	moveChannel();
}

void OverlayEditorScene::moveChannel() {
	qgpiChannel->setVisible(os.bChannel);
	qgpiChannel->setPos(OverlayUser::alignedPosition(OverlayUser::scaledRect(os.qrfChannel, uiSize * uiZoom), qgpiChannel->boundingRect(), os.qaChannel));
	qgpiChannel->setOpacity(os.fChannel);
}

void OverlayEditorScene::updateAvatar() {
	QImage img;
	QImageReader qir(QLatin1String("skin:default_avatar.svg"));
	QSize sz = qir.size();
	sz.scale(SCALESIZE(Avatar), Qt::KeepAspectRatio);
	qir.setScaledSize(sz);
	img = qir.read();
	qgpiAvatar->setPixmap(QPixmap::fromImage(img));

	moveAvatar();
}

void OverlayEditorScene::moveAvatar() {
	qgpiAvatar->setVisible(os.bAvatar);
	qgpiAvatar->setPos(OverlayUser::alignedPosition(OverlayUser::scaledRect(os.qrfAvatar, uiSize * uiZoom), qgpiAvatar->boundingRect(), os.qaAvatar));
	qgpiAvatar->setOpacity(os.fAvatar);
}

void OverlayEditorScene::moveBox() {
	QRectF childrenBounds = os.qrfAvatar | os.qrfChannel | os.qrfMutedDeafened | os.qrfUserName;

	bool haspen = (os.qcBoxPen != os.qcBoxFill) && (! qFuzzyCompare(os.qcBoxPen.alphaF(), static_cast<qreal>(0.0f)));
	qreal pw = haspen ? qMax<qreal>(1.0f, os.fBoxPenWidth * uiSize * uiZoom) : 0.0f;
	qreal pad = os.fBoxPad * uiSize * uiZoom;

	QPainterPath pp;
	pp.addRoundedRect(childrenBounds.x() * uiSize * uiZoom + -pw / 2.0f - pad, childrenBounds.y() * uiSize * uiZoom + -pw / 2.0f - pad, childrenBounds.width() * uiSize * uiZoom + pw + 2.0f * pad, childrenBounds.height() * uiSize * uiZoom + pw + 2.0f * pad, 2.0f * pw, 2.0f * pw);
	qgpiBox->setPath(pp);
	qgpiBox->setPos(0.0f, 0.0f);
	qgpiBox->setPen(haspen ? QPen(os.qcBoxPen, pw) : Qt::NoPen);
	qgpiBox->setBrush(qFuzzyCompare(os.qcBoxFill.alphaF(), static_cast<qreal>(0.0f)) ? Qt::NoBrush : os.qcBoxFill);
	qgpiBox->setOpacity(1.0f);

	qgpiBox->setVisible(os.bBox);
}

void OverlayEditorScene::updateSelected() {
	if (qgpiSelected == qgpiAvatar)
		updateAvatar();
	else if (qgpiSelected == qgpiName)
		updateUserName();
	else if (qgpiSelected == qgpiMuted)
		updateMuted();
}

void OverlayEditorScene::resync() {
	QRadialGradient gradient(0, 0, 10 * uiZoom);
	gradient.setSpread(QGradient::ReflectSpread);
	gradient.setColorAt(0.0f, QColor(255, 255, 255, 64));
	gradient.setColorAt(0.2f, QColor(0, 0, 0, 64));
	gradient.setColorAt(0.4f, QColor(255, 128, 0, 64));
	gradient.setColorAt(0.6f, QColor(0, 0, 0, 64));
	gradient.setColorAt(0.8f, QColor(0, 128, 255, 64));
	gradient.setColorAt(1.0f, QColor(0, 0, 0, 64));
	setBackgroundBrush(gradient);

	updateMuted();
	updateUserName();
	updateChannel();
	updateAvatar();

	moveMuted();
	moveUserName();
	moveChannel();
	moveAvatar();

	moveBox();

	qgiGroup->setOpacity(os.fUser[tsColor]);

	qgpiSelected = NULL;
	qgriSelected->setVisible(false);
}

void OverlayEditorScene::drawBackground(QPainter *p, const QRectF &rect) {
	p->setBrushOrigin(0, 0);
	p->fillRect(rect, backgroundBrush());

	QRectF upscaled = OverlayUser::scaledRect(rect, 128.f / static_cast<float>(uiSize * uiZoom));

	{
		int min = iroundf(upscaled.left());
		int max = iroundf(ceil(upscaled.right()));

		for (int i=min;i<=max;++i) {
			qreal v = (i / 128) * static_cast<qreal>(uiSize * uiZoom);

			if (i != 0)
				p->setPen(QPen(QColor(128, 128, 128, 255), 0.0f));
			else
				p->setPen(QPen(QColor(0, 0, 0, 255), 2.0f));

			p->drawLine(QPointF(v, rect.top()), QPointF(v, rect.bottom()));
		}
	}

	{
		int min = iroundf(upscaled.top());
		int max = iroundf(ceil(upscaled.bottom()));

		for (int i=min;i<=max;++i) {
			qreal v = (i / 128) * static_cast<qreal>(uiSize * uiZoom);

			if (i != 0)
				p->setPen(QPen(QColor(128, 128, 128, 255), 0.0f));
			else
				p->setPen(QPen(QColor(0, 0, 0, 255), 2.0f));

			p->drawLine(QPointF(rect.left(), v), QPointF(rect.right(), v));
		}
	}
}

QGraphicsPixmapItem *OverlayEditorScene::childAt(const QPointF &pos) {
	QGraphicsItem *item = NULL;

	if (qgriSelected->isVisible()) {
		if (qgriSelected->rect().contains(pos)) {
			return qgpiSelected;
		}
	}

	foreach(QGraphicsItem *qgi, items(Qt::AscendingOrder)) {
		if (!qgi->isVisible() || ! qgraphicsitem_cast<QGraphicsPixmapItem *>(qgi))
			continue;

		QPointF qp = pos - qgi->pos();
		if (qgi->contains(qp)) {
			item = qgi;
		}
	}
	return static_cast<QGraphicsPixmapItem *>(item);
}

QRectF OverlayEditorScene::selectedRect() const {
	const QRectF *qrf = NULL;

	if (qgpiSelected == qgpiMuted)
		qrf = & os.qrfMutedDeafened;
	else if (qgpiSelected == qgpiAvatar)
		qrf = & os.qrfAvatar;
	else if (qgpiSelected == qgpiChannel)
		qrf = & os.qrfChannel;
	else if (qgpiSelected == qgpiName)
		qrf = & os.qrfUserName;

	if (! qrf)
		return QRectF();

	return OverlayUser::scaledRect(*qrf, uiSize * uiZoom).toAlignedRect();
}


void OverlayEditorScene::mousePressEvent(QGraphicsSceneMouseEvent *e) {
	QGraphicsScene::mousePressEvent(e);

	if (e->isAccepted())
		return;

	if (e->button() == Qt::LeftButton) {
		e->accept();

		if (wfsHover == Qt::NoSection) {
			qgpiSelected = childAt(e->scenePos());
			if (qgpiSelected) {
				qgriSelected->setRect(selectedRect());
				qgriSelected->show();
			} else {
				qgriSelected->hide();
			}
		}

		updateCursorShape(e->scenePos());
	}
}

void OverlayEditorScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *e) {
	QGraphicsScene::mouseReleaseEvent(e);

	if (e->isAccepted())
		return;

	if (e->button() == Qt::LeftButton) {
		e->accept();

		QRectF rect = qgriSelected->rect();

		if (! qgpiSelected || (rect == selectedRect())) {
			return;
		}

		QRectF scaled(rect.x() / (uiSize * uiZoom), rect.y() / (uiSize * uiZoom), rect.width() / (uiSize * uiZoom), rect.height() / (uiSize * uiZoom));

		if (qgpiSelected == qgpiMuted) {
			os.qrfMutedDeafened = scaled;
			updateMuted();
		} else if (qgpiSelected == qgpiAvatar) {
			os.qrfAvatar = scaled;
			updateAvatar();
		} else if (qgpiSelected == qgpiChannel) {
			os.qrfChannel = scaled;
			updateChannel();
		} else if (qgpiSelected == qgpiName) {
			os.qrfUserName = scaled;
			updateUserName();
		}

		moveBox();
	}
}

void OverlayEditorScene::mouseMoveEvent(QGraphicsSceneMouseEvent *e) {
	QGraphicsScene::mouseMoveEvent(e);

	if (e->isAccepted())
		return;

	if (qgpiSelected && (e->buttons() & Qt::LeftButton)) {
		e->accept();

		if (wfsHover == Qt::NoSection)
			return;

		QPointF delta = e->scenePos() - e->buttonDownScenePos(Qt::LeftButton);

		bool square = e->modifiers() & Qt::ShiftModifier;

		QRectF orig = selectedRect();
		switch (wfsHover) {
			case Qt::TitleBarArea:
				orig.translate(delta);
				break;
			case Qt::TopSection:
				orig.setTop(orig.top() + delta.y());
				if (orig.height() < 8.0f)
					orig.setTop(orig.bottom() - 8.0f);
				if (square)
					orig.setRight(orig.left() + orig.height());
				break;
			case Qt::BottomSection:
				orig.setBottom(orig.bottom() + delta.y());
				if (orig.height() < 8.0f)
					orig.setBottom(orig.top() + 8.0f);
				if (square)
					orig.setRight(orig.left() + orig.height());
				break;
			case Qt::LeftSection:
				orig.setLeft(orig.left() + delta.x());
				if (orig.width() < 8.0f)
					orig.setLeft(orig.right() - 8.0f);
				if (square)
					orig.setBottom(orig.top() + orig.width());
				break;
			case Qt::RightSection:
				orig.setRight(orig.right() + delta.x());
				if (orig.width() < 8.0f)
					orig.setRight(orig.left() + 8.0f);
				if (square)
					orig.setBottom(orig.top() + orig.width());
				break;
			case Qt::TopLeftSection:
				orig.setTopLeft(orig.topLeft() + delta);
				if (orig.height() < 8.0f)
					orig.setTop(orig.bottom() - 8.0f);
				if (orig.width() < 8.0f)
					orig.setLeft(orig.right() - 8.0f);
				if (square) {
					qreal size = qMin(orig.width(), orig.height());
					QPointF sz(-size, -size);
					orig.setTopLeft(orig.bottomRight() + sz);
				}
				break;
			case Qt::TopRightSection:
				orig.setTopRight(orig.topRight() + delta);
				if (orig.height() < 8.0f)
					orig.setTop(orig.bottom() - 8.0f);
				if (orig.width() < 8.0f)
					orig.setRight(orig.left() + 8.0f);
				if (square) {
					qreal size = qMin(orig.width(), orig.height());
					QPointF sz(size, -size);
					orig.setTopRight(orig.bottomLeft() + sz);
				}
				break;
			case Qt::BottomLeftSection:
				orig.setBottomLeft(orig.bottomLeft() + delta);
				if (orig.height() < 8.0f)
					orig.setBottom(orig.top() + 8.0f);
				if (orig.width() < 8.0f)
					orig.setLeft(orig.right() - 8.0f);
				if (square) {
					qreal size = qMin(orig.width(), orig.height());
					QPointF sz(-size, size);
					orig.setBottomLeft(orig.topRight() + sz);
				}
				break;
			case Qt::BottomRightSection:
				orig.setBottomRight(orig.bottomRight() + delta);
				if (orig.height() < 8.0f)
					orig.setBottom(orig.top() + 8.0f);
				if (orig.width() < 8.0f)
					orig.setRight(orig.left() + 8.0f);
				if (square) {
					qreal size = qMin(orig.width(), orig.height());
					QPointF sz(size, size);
					orig.setBottomRight(orig.topLeft() + sz);
				}
				break;
			case Qt::NoSection:
				// Handled above, but this makes the compiler happy.
				return;
		}

		qgriSelected->setRect(orig);
	} else {
		updateCursorShape(e->scenePos());
	}
}

void OverlayEditorScene::updateCursorShape(const QPointF &point) {
	Qt::CursorShape	cs;

	if (qgriSelected->isVisible()) {
		wfsHover = rectSection(qgriSelected->rect(), point);
	} else {
		wfsHover = Qt::NoSection;
	}

	switch (wfsHover) {
		case Qt::TopLeftSection:
		case Qt::BottomRightSection:
			cs = Qt::SizeFDiagCursor;
			break;
		case Qt::TopRightSection:
		case Qt::BottomLeftSection:
			cs = Qt::SizeBDiagCursor;
			break;
		case Qt::TopSection:
		case Qt::BottomSection:
			cs = Qt::SizeVerCursor;
			break;
		case Qt::LeftSection:
		case Qt::RightSection:
			cs = Qt::SizeHorCursor;
			break;
		case Qt::TitleBarArea:
			cs = Qt::OpenHandCursor;
			break;
		default:
			cs = Qt::ArrowCursor;
			break;
	}


	foreach(QGraphicsView *v, views()) {
		if (v->viewport()->cursor().shape() != cs) {
			v->viewport()->setCursor(cs);

			// But an embedded, injected GraphicsView doesn't propagage mouse cursors...
			QWidget *p = v->parentWidget();
			if (p) {
				QGraphicsProxyWidget *qgpw = p->graphicsProxyWidget();
				if (qgpw) {
					qgpw->setCursor(cs);
					if (g.ocIntercept)
						g.ocIntercept->updateMouse();
				}
			}
		}
	}
}

void OverlayEditorScene::contextMenuEvent(QGraphicsSceneContextMenuEvent *e) {
	QGraphicsScene::contextMenuEvent(e);

	if (e->isAccepted())
		return;

	if (! e->widget())
		return;

	QGraphicsPixmapItem *item = childAt(e->scenePos());

	QMenu qm(e->widget());

	QMenu *qmLayout = qm.addMenu(tr("Layout preset"));
	QAction *qaLayoutLargeAvatar = qmLayout->addAction(tr("Large square avatar"));
	QAction *qaLayoutText = qmLayout->addAction(tr("Avatar and Name"));

	QMenu *qmTrans = qm.addMenu(tr("User Opacity"));
	QActionGroup *qagUser = new QActionGroup(&qm);
	QAction *userOpacity[8];
	for (int i=0;i<8;++i) {
		qreal o = (i + 1) / 8.0;

		userOpacity[i] = new QAction(tr("%1%").arg(o * 100.0f, 0, 'f', 1), qagUser);
		userOpacity[i]->setCheckable(true);
		userOpacity[i]->setData(o);

		if (qFuzzyCompare(qgiGroup->opacity(), o))
			userOpacity[i]->setChecked(true);

		qmTrans->addAction(userOpacity[i]);
	}

	QAction *color = NULL;
	QAction *fontAction = NULL;
	QAction *objectOpacity[8];
	for (int i=0;i<8;++i)
		objectOpacity[i] = NULL;
	QAction *boxpen[4] = { NULL, NULL, NULL, NULL};
	QAction *boxpad[4] = { NULL, NULL, NULL, NULL};
	QAction *boxpencolor = NULL;
	QAction *boxfillcolor = NULL;

	QAction *align[6];
	for (int i=0;i<6;++i)
		align[i] = NULL;

	if (item) {
		qm.addSeparator();
		QMenu *qmObjTrans = qm.addMenu(tr("Object Opacity"));
		QActionGroup *qagObject = new QActionGroup(&qm);
		for (int i=0;i<8;++i) {
			qreal o = (i + 1) / 8.0;

			objectOpacity[i] = new QAction(tr("%1%").arg(o * 100.0f, 0, 'f', 1), qagObject);
			objectOpacity[i]->setCheckable(true);
			objectOpacity[i]->setData(o);
			if (qFuzzyCompare(item->opacity(), o))
				objectOpacity[i]->setChecked(true);
			qmObjTrans->addAction(objectOpacity[i]);
		}

		QMenu *qmObjAlign = qm.addMenu(tr("Alignment"));
		Qt::Alignment a;
		if (item == qgpiAvatar)
			a = os.qaAvatar;
		else if (item == qgpiChannel)
			a = os.qaChannel;
		else if (item == qgpiMuted)
			a = os.qaMutedDeafened;
		else
			a = os.qaUserName;

		align[0] = qmObjAlign->addAction(tr("Left"));
		align[0]->setCheckable(true);
		align[0]->setData(Qt::AlignLeft);
		if (a & Qt::AlignLeft)
			align[0]->setChecked(true);
		align[1] = qmObjAlign->addAction(tr("Center"));
		align[1]->setCheckable(true);
		align[1]->setData(Qt::AlignHCenter);
		if (a & Qt::AlignHCenter)
			align[1]->setChecked(true);
		align[2] = qmObjAlign->addAction(tr("Right"));
		align[2]->setCheckable(true);
		align[2]->setData(Qt::AlignRight);
		if (a & Qt::AlignRight)
			align[2]->setChecked(true);

		qmObjAlign->addSeparator();

		align[3] = qmObjAlign->addAction(tr("Top"));
		align[3]->setCheckable(true);
		align[3]->setData(Qt::AlignTop);
		if (a & Qt::AlignTop)
			align[3]->setChecked(true);
		align[4] = qmObjAlign->addAction(tr("Center"));
		align[4]->setCheckable(true);
		align[4]->setData(Qt::AlignVCenter);
		if (a & Qt::AlignVCenter)
			align[4]->setChecked(true);
		align[5] = qmObjAlign->addAction(tr("Bottom"));
		align[5]->setCheckable(true);
		align[5]->setData(Qt::AlignBottom);
		if (a & Qt::AlignBottom)
			align[5]->setChecked(true);

		if ((item != qgpiAvatar) && (item != qgpiMuted)) {
			color = qm.addAction(tr("Color..."));
			fontAction = qm.addAction(tr("Font..."));
		}
	}

	if (qgpiBox->isVisible()) {
		qm.addSeparator();
		QMenu *qmBox = qm.addMenu(tr("Bounding box"));
		QMenu *qmPen = qmBox->addMenu(tr("Pen width"));
		QMenu *qmPad = qmBox->addMenu(tr("Padding"));
		boxpencolor = qmBox->addAction(tr("Pen color"));
		boxfillcolor = qmBox->addAction(tr("Fill color"));

		QActionGroup *qagPen = new QActionGroup(qmPen);
		QActionGroup *qagPad = new QActionGroup(qmPad);
		for (int i=0;i<4;++i) {
			qreal v = (i) ? powf(2.0f, static_cast<float>(-10 + i)) : 0.0f;
			boxpen[i] = new QAction(QString::number(i), qagPen);
			boxpen[i]->setData(v);
			boxpen[i]->setCheckable(true);
			if (qFuzzyCompare(os.fBoxPenWidth, v))
				boxpen[i]->setChecked(true);
			qmPen->addAction(boxpen[i]);

			boxpad[i] = new QAction(QString::number(i), qagPad);
			boxpad[i]->setData(v);
			boxpad[i]->setCheckable(true);
			if (qFuzzyCompare(os.fBoxPad, v))
				boxpad[i]->setChecked(true);
			qmPad->addAction(boxpad[i]);
		}
	}

	QAction *act = qm.exec(e->screenPos());

	if (! act)
		return;

	for (int i=0;i<8;++i) {
		if (userOpacity[i] == act) {
			float o = static_cast<float>(act->data().toReal());
			os.fUser[tsColor] = o;

			qgiGroup->setOpacity(o);
		}
	}

	for (int i=0;i<8;++i) {
		if (objectOpacity[i] == act) {
			qreal o = act->data().toReal();

			if (item == qgpiMuted)
				os.fMutedDeafened = o;
			else if (item == qgpiAvatar)
				os.fAvatar = o;
			else if (item == qgpiChannel)
				os.fChannel = o;
			else if (item == qgpiName)
				os.fUserName = o;

			item->setOpacity(o);
		}
	}

	for (int i=0;i<4;++i) {
		if (boxpen[i] == act) {
			os.fBoxPenWidth = act->data().toReal();
			moveBox();
		} else if (boxpad[i] == act) {
			os.fBoxPad = act->data().toReal();
			moveBox();
		}
	}

	for (int i=0;i<6;++i) {
		if (align[i] == act) {
			Qt::Alignment *aptr;
			if (item == qgpiAvatar)
				aptr = & os.qaAvatar;
			else if (item == qgpiChannel)
				aptr = & os.qaChannel;
			else if (item == qgpiMuted)
				aptr = & os.qaMutedDeafened;
			else
				aptr = & os.qaUserName;

			Qt::Alignment a = static_cast<Qt::Alignment>(act->data().toInt());
			if (a & Qt::AlignHorizontal_Mask) {
				*aptr = (*aptr & ~Qt::AlignHorizontal_Mask) | a;
			} else {
				*aptr = (*aptr & ~Qt::AlignVertical_Mask) | a;
			}

			updateSelected();
		}
	}

	if (act == boxpencolor) {
		QColor qc = QColorDialog::getColor(os.qcBoxPen, e->widget(), tr("Pick pen color"), QColorDialog::DontUseNativeDialog | QColorDialog::ShowAlphaChannel);
		if (! qc.isValid())
			return;
		os.qcBoxPen = qc;
		moveBox();
	} else if (act == boxfillcolor) {
		QColor qc = QColorDialog::getColor(os.qcBoxFill, e->widget(), tr("Pick fill color"), QColorDialog::DontUseNativeDialog | QColorDialog::ShowAlphaChannel);
		if (! qc.isValid())
			return;
		os.qcBoxFill = qc;
		moveBox();
	} else if (act == color) {
		QColor *col = NULL;
		if (item == qgpiChannel)
			col = & os.qcChannel;
		else if (item == qgpiName)
			col = & os.qcUserName[tsColor];
		if (! col)
			return;

		QColor qc = QColorDialog::getColor(*col, e->widget(), tr("Pick color"), QColorDialog::DontUseNativeDialog);
		if (! qc.isValid())
			return;
		qc.setAlpha(255);

		if (qc == *col)
			return;

		*col = qc;
		updateSelected();
	} else if (act == fontAction) {
		QFont *fontptr = (item == qgpiChannel) ? &os.qfChannel : &os.qfUserName;

		qgpiSelected = NULL;
		qgriSelected->hide();

		// QFontDialog doesn't really like graphics view. At all.

		QFontDialog qfd;
		qfd.setOptions(QFontDialog::DontUseNativeDialog);
		qfd.setCurrentFont(*fontptr);
		qfd.setWindowTitle(tr("Pick font"));

		int ret;
		if (g.ocIntercept) {
			QGraphicsProxyWidget *qgpw = new QGraphicsProxyWidget(NULL, Qt::Window);
			qgpw->setWidget(&qfd);

			addItem(qgpw);

			qgpw->setZValue(3.0f);
			qgpw->setPanelModality(QGraphicsItem::PanelModal);
			qgpw->setPos(- qgpw->boundingRect().width() / 2.0f, - qgpw->boundingRect().height() / 2.0f);
			qgpw->show();

			ret = qfd.exec();

			qgpw->hide();
			qgpw->setWidget(NULL);
			delete qgpw;
		} else {
			Qt::WindowFlags wf = g.mw->windowFlags();
			if (wf.testFlag(Qt::WindowStaysOnTopHint))
				qfd.setWindowFlags(qfd.windowFlags() | Qt::WindowStaysOnTopHint);
			ret = qfd.exec();
		}

		if (! ret)
			return;
		*fontptr = qfd.selectedFont();

		resync();
	} else if (act == qaLayoutLargeAvatar) {
		os.setPreset(OverlaySettings::LargeSquareAvatar);
		resync();
	} else if (act == qaLayoutText) {
		os.setPreset(OverlaySettings::AvatarAndName);
		resync();
	}
}

static qreal distancePointLine(const QPointF &a, const QPointF &b, const QPointF &p) {
	qreal xda = a.x() - p.x();
	qreal xdb = p.x() - b.x();

	qreal xd = 0;

	if (xda > 0)
		xd = xda;
	if (xdb > 0)
		xd = qMax(xd, xdb);

	qreal yda = a.y() - p.y();
	qreal ydb = p.y() - b.y();

	qreal yd = 0;

	if (yda > 0)
		yd = yda;
	if (ydb > 0)
		yd = qMax(yd, ydb);

	return qMax(xd, yd);
}

Qt::WindowFrameSection OverlayEditorScene::rectSection(const QRectF &qrf, const QPointF &qp, qreal dist) {
	qreal left, right, top, bottom;

	top = distancePointLine(qrf.topLeft(), qrf.topRight(), qp);
	bottom = distancePointLine(qrf.bottomLeft(), qrf.bottomRight(), qp);
	left = distancePointLine(qrf.topLeft(), qrf.bottomLeft(), qp);
	right = distancePointLine(qrf.topRight(), qrf.bottomRight(), qp);

	if ((top < dist) && (top < bottom)) {
		if ((left < dist) && (left < right))
			return Qt::TopLeftSection;
		else if (right < dist)
			return Qt::TopRightSection;
		return Qt::TopSection;
	} else if (bottom < dist) {
		if ((left < dist) && (left < right))
			return Qt::BottomLeftSection;
		else if (right < dist)
			return Qt::BottomRightSection;
		return Qt::BottomSection;
	} else if (left < dist) {
		return Qt::LeftSection;
	} else if (right < dist) {
		return Qt::RightSection;
	}
	if (qrf.contains(qp))
		return Qt::TitleBarArea;

	return Qt::NoSection;
}