#include "controlsoverlay.h"

ControlsOverlay::ControlsOverlay(FloatingWidgetContainer *parent) :
    FloatingWidget(parent)
{
    folderViewButton = new ActionButton("folderView", ":/res/icons/buttons/panel/folderview20.png", 30);
    folderViewButton->setAccessibleName("PanelButtonSmall");
    settingsButton = new ActionButton("openSettings", ":/res/icons/buttons/panel/settings20.png", 30);
    settingsButton->setAccessibleName("PanelButtonSmall");
    closeButton = new ActionButton("exit", ":/res/icons/buttons/panel/close16.png", 30);
    closeButton->setAccessibleName("PanelButtonSmall");

    QWidget *horizontalLineWidget = new QWidget;
    horizontalLineWidget->setFixedSize(5, 22);
    horizontalLineWidget->setStyleSheet(QString("background-color: #707070; margin-left: 2px; margin-right: 2px"));

    layout.setContentsMargins(0,0,0,0);
    this->setContentsMargins(0,0,0,0);
    layout.setSpacing(0);
    layout.addWidget(folderViewButton);
    layout.addWidget(horizontalLineWidget);
    layout.addWidget(settingsButton);
    layout.addWidget(closeButton);
    setLayout(&layout);
    fitToContents();

    setMouseTracking(true);

    fadeEffect = new QGraphicsOpacityEffect(this);
    this->setGraphicsEffect(fadeEffect);
    fadeAnimation = new QPropertyAnimation(fadeEffect, "opacity");
    fadeAnimation->setDuration(230);
    fadeAnimation->setStartValue(1.0f);
    fadeAnimation->setEndValue(0);
    fadeAnimation->setEasingCurve(QEasingCurve::OutQuart);

    if(parent)
        setContainerSize(parent->size());
    //this->show();
}

void ControlsOverlay::show() {
    fadeEffect->setOpacity(0.0);
    FloatingWidget::show();
}

QSize ControlsOverlay::contentsSize() {
    QSize newSize(0, 0);
    for(int i=0; i<layout.count(); i++) {
        newSize.setWidth(newSize.width() + layout.itemAt(i)->widget()->width());
        newSize.setHeight(layout.itemAt(i)->widget()->height());
    }
    return newSize;
}

void ControlsOverlay::fitToContents() {
    this->setFixedSize(contentsSize());
    recalculateGeometry();
}

void ControlsOverlay::recalculateGeometry() {
    setGeometry(containerSize().width() - width(), 0, width(), height());
}

void ControlsOverlay::enterEvent(QEvent *event) {
    Q_UNUSED(event)
    fadeAnimation->stop();
    fadeEffect->setOpacity(1.0);
}

void ControlsOverlay::leaveEvent(QEvent *event) {
    Q_UNUSED(event)
    fadeAnimation->start();
}
