/***************************************************************************
                          colorlisti  -  QListWidget item to edit colors
                             -------------------
    copyright            : (C) 2007 Michal Rudolf <mrudolf@kdewebdev.org>
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#include "colorlist.h"

#include <QColorDialog>
#include <QKeyEvent>
#include <QListWidget>
#include <QMouseEvent>
#include <QPainter>
#include <QPixmap>

#if defined(_MSC_VER) && defined(_DEBUG)
#define DEBUG_NEW new( _NORMAL_BLOCK, __FILE__, __LINE__ )
#define new DEBUG_NEW
#endif // _MSC_VER

ColorList::ColorList(QWidget* parent) : QListWidget(parent)
{
}

ColorList::~ColorList()
{}

void ColorList::addItem(const QString& text, const QColor& color)
{
    QListWidgetItem* item = new QListWidgetItem(this);
    item->setText(text);
    if(count() == 1)
    {
        setIconSize(QSize(100, sizeHintForRow(0) - 4));
    }
    setItemColor(item, color);

}

void ColorList::editItemColor(QListWidgetItem* item)
{
    if(!item)
    {
        return;
    }
    QColor col = QColorDialog::getColor(color(item));
    if(col.isValid())
    {
        setItemColor(item, col);
    }
}

void ColorList::mousePressEvent(QMouseEvent* event)
{
    QListWidgetItem* item = itemAt(event->pos());
    if(event->button() != Qt::LeftButton || item == 0)
    {
        event->ignore();
    }
    else if(item == currentItem())
    {
        editItemColor(item);
    }
    else
    {
        setCurrentItem(item);
    }
}

void ColorList::keyPressEvent(QKeyEvent* event)
{
#ifdef Q_WS_MAC
    if(event->key() == Qt::Key_0 && event->modifiers() == Qt::Key_Control)
#else
    if(event->key() == Qt::Key_Return)
#endif
        editItemColor(currentItem());
    else
    {
        QListWidget::keyPressEvent(event);
    }
}

void ColorList::setItemColor(QListWidgetItem* item, const QColor& color)
{
    QPixmap pix(iconSize());
    pix.fill(Qt::transparent);
    QPainter painter(&pix);
    painter.setBrush(palette().color(QPalette::Background));
    painter.setPen(palette().color(QPalette::Text));
    painter.setBrush(color);
    painter.drawRect(0, 0, 99, iconSize().height() - 1);
    QIcon icon;
    icon.addPixmap(pix, QIcon::Normal);
    icon.addPixmap(pix, QIcon::Selected);
    icon.addPixmap(pix, QIcon::Active);
    item->setIcon(icon);
    item->setData(Qt::UserRole, QVariant::fromValue<QColor>(color));
}

QColor ColorList::color(QListWidgetItem* item) const
{
    return item->data(Qt::UserRole).value<QColor>();
}

QColor ColorList::color(int index) const
{
    return item(index)->data(Qt::UserRole).value<QColor>();
}

