/* This file is part of the KDE project

Copyright (C) 2001, 2003 Lukas Tinkl <lukas@kde.org>
Andreas Schlapbach <schlpbch@iam.unibe.ch>

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.

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
Library General Public License for more details.

You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB.  If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/

#include "imgallerydialog.h"

#include <QLabel>
#include <QLayout>
#include <QComboBox>
#include <QCheckBox>
#include <QLineEdit>
#include <QSpinBox>
#include <QVBoxLayout>
#include <QFrame>
#include <QHBoxLayout>
#include <QGridLayout>
#include <QFontDatabase>

#include <KLocalizedString>
#include <kfontdialog.h>
#include <kiconloader.h>
#include <klineedit.h>
#include <knuminput.h>
#include <kcolorbutton.h>
#include <kurlrequester.h>
#include <kconfig.h>

KIGPDialog::KIGPDialog(QWidget *parent, const QString &path)
    : KPageDialog(parent)
{
    setStandardButtons(QDialogButtonBox::RestoreDefaults | QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
    buttonBox()->button(QDialogButtonBox::Ok)->setDefault(true);
    setModal(true);
    setFaceType(List);

    m_path = path;
    setWindowTitle(i18nc("@title:window", "Create Image Gallery"));
    KGuiItem::assign(buttonBox()->button(QDialogButtonBox::Ok), KGuiItem(i18n("Create"), QStringLiteral("imagegallery")));
    m_config = new KConfig(QStringLiteral("kimgallerypluginrc"), KConfig::NoGlobals);
    setupLookPage(path);
    setupDirectoryPage(path);
    setupThumbnailPage(path);
    connect(buttonBox()->button(QDialogButtonBox::RestoreDefaults), SIGNAL(clicked()), this, SLOT(slotDefault()));
}

void KIGPDialog::slotDefault()
{
    m_title->setText(i18n("Image Gallery for %1", m_path));
    m_imagesPerRow->setValue(4);
    m_imageName->setChecked(true);
    m_imageSize->setChecked(false);
    m_imageProperty->setChecked(false);
    m_fontName->setItemText(m_fontName->currentIndex(), QFontDatabase::systemFont(QFontDatabase::GeneralFont).family());
    m_fontSize->setValue(14);
    m_foregroundColor->setColor(QColor(QStringLiteral("#d0ffd0")));
    m_backgroundColor->setColor(QColor(QStringLiteral("#333333")));

    m_imageNameReq->setUrl(QUrl::fromLocalFile(m_path + "images.html"));
    m_recurseSubDir->setChecked(false);
    m_recursionLevel->setEnabled(false);
    m_recursionLevel->setValue(0);
    m_copyOriginalFiles->setChecked(false);
    m_useCommentFile->setChecked(false);
    m_commentFileReq->setUrl(QUrl::fromLocalFile(m_path + "comments"));
    m_commentFileReq->setEnabled(false);

    m_imageFormat->setItemText(m_imageFormat->currentIndex(), QStringLiteral("JPEG"));
    m_thumbnailSize->setValue(140);
    m_colorDepthSet->setChecked(false);
    m_colorDepth->setItemText(m_colorDepth->currentIndex(), QStringLiteral("8"));
}

void KIGPDialog::setupLookPage(const QString &path)
{
    QFrame *page = new QFrame();
    KPageWidgetItem *pageItem = new KPageWidgetItem(page, i18n("Look"));
    pageItem->setHeader(i18n("Page Look"));
    pageItem->setIcon(QIcon::fromTheme("fill-color"));
    addPage(pageItem);

    KConfigGroup look = m_config->group("Look");
    QVBoxLayout *vlay = new QVBoxLayout(page);
    vlay->setContentsMargins(0, 0, 0, 0);

    QLabel *label = new QLabel(i18n("&Page title:"), page);
    vlay->addWidget(label);

    m_title = new QLineEdit(i18n("Image Gallery for %1", path), page);
    vlay->addWidget(m_title);
    label->setBuddy(m_title);

    m_imagesPerRow = new KIntNumInput(look.readEntry("ImagesPerRow", 4), page);
    m_imagesPerRow->setRange(1, 8, 1);
    m_imagesPerRow->setSliderEnabled(true);
    m_imagesPerRow->setLabel(i18n("I&mages per row:"));
    vlay->addWidget(m_imagesPerRow);

    QGridLayout *grid = new QGridLayout();
    grid->setContentsMargins(2, 2, 2, 2);
    grid->setSpacing(2);
    vlay->addLayout(grid);

    m_imageName = new QCheckBox(i18n("Show image file &name"), page);
    m_imageName->setChecked(look.readEntry("ImageName", true));
    grid->addWidget(m_imageName, 0, 0);

    m_imageSize = new QCheckBox(i18n("Show image file &size"), page);
    m_imageSize->setChecked(look.readEntry("ImageSize", false));
    grid->addWidget(m_imageSize, 0, 1);

    m_imageProperty = new QCheckBox(i18n("Show image &dimensions"), page);
    m_imageProperty->setChecked(look.readEntry("ImageProperty", false));
    grid->addWidget(m_imageProperty, 1, 0);

    QHBoxLayout *hlay11  = new QHBoxLayout();
    vlay->addLayout(hlay11);

    m_fontName = new QComboBox(page);
    QStringList standardFonts;
    KFontChooser::getFontList(standardFonts, 0);
    m_fontName->addItems(standardFonts);
    m_fontName->setItemText(m_fontName->currentIndex(), look.readEntry("FontName", QFontDatabase::systemFont(QFontDatabase::GeneralFont).family()));

    label = new QLabel(i18n("Fon&t name:"), page);
    label->setBuddy(m_fontName);
    hlay11->addWidget(label);
    hlay11->addStretch(1);
    hlay11->addWidget(m_fontName);

    QHBoxLayout *hlay12  = new QHBoxLayout();
    vlay->addLayout(hlay12);

    m_fontSize = new QSpinBox(page);
    m_fontSize->setMinimum(6);
    m_fontSize->setMaximum(15);
    m_fontSize->setSingleStep(1);
    m_fontSize->setValue(look.readEntry("FontSize", 14));

    label = new QLabel(i18n("Font si&ze:"), page);
    label->setBuddy(m_fontSize);
    hlay12->addWidget(label);
    hlay12->addStretch(1);
    hlay12->addWidget(m_fontSize);

    QHBoxLayout *hlay1  = new QHBoxLayout();
    vlay->addLayout(hlay1);

    m_foregroundColor = new KColorButton(page);
    m_foregroundColor->setColor(QColor(look.readEntry("ForegroundColor", "#d0ffd0")));

    label = new QLabel(i18n("&Foreground color:"), page);
    label->setBuddy(m_foregroundColor);
    hlay1->addWidget(label);
    hlay1->addStretch(1);
    hlay1->addWidget(m_foregroundColor);

    QHBoxLayout *hlay2 = new QHBoxLayout();
    vlay->addLayout(hlay2);

    m_backgroundColor = new KColorButton(page);
    m_backgroundColor->setColor(QColor(look.readEntry("BackgroundColor", "#333333")));

    label = new QLabel(i18n("&Background color:"), page);
    hlay2->addWidget(label);
    label->setBuddy(m_backgroundColor);
    hlay2->addStretch(1);
    hlay2->addWidget(m_backgroundColor);

    vlay->addStretch(1);
}

void KIGPDialog::setupDirectoryPage(const QString &path)
{
    QFrame *page = new QFrame();
    KPageWidgetItem *pageItem = new KPageWidgetItem(page, i18n("Folders"));
    pageItem->setHeader(i18n("Folders"));
    pageItem->setIcon(QIcon::fromTheme("folder"));
    addPage(pageItem);

    KConfigGroup group =  m_config->group("Directory");
    QVBoxLayout *dvlay = new QVBoxLayout(page);
    dvlay->setContentsMargins(0, 0, 0, 0);

    QLabel *label;
    label = new QLabel(i18n("&Save to HTML file:"), page);
    dvlay->addWidget(label);
    QString whatsThis;
    whatsThis = i18n("<p>The name of the HTML file this gallery will be saved to.</p>");
    label->setWhatsThis(whatsThis);

    m_imageNameReq = new KUrlRequester(QUrl::fromLocalFile(QString(path + "images.html")), page);
    label->setBuddy(m_imageNameReq);
    dvlay->addWidget(m_imageNameReq);
    connect(m_imageNameReq, SIGNAL(textChanged(QString)),
            this, SLOT(imageUrlChanged(QString)));
    m_imageNameReq->setWhatsThis(whatsThis);

    const bool recurseSubDir = group.readEntry("RecurseSubDirectories", false);
    m_recurseSubDir = new QCheckBox(i18n("&Recurse subfolders"), page);
    m_recurseSubDir->setChecked(recurseSubDir);
    whatsThis = i18n("<p>Whether subfolders should be included for the "
                     "image gallery creation or not.</p>");
    m_recurseSubDir->setWhatsThis(whatsThis);

    const int recursionLevel = group.readEntry("RecursionLevel", 0);
    m_recursionLevel = new KIntNumInput(recursionLevel, page);
    m_recursionLevel->setRange(0, 99, 1);
    m_recursionLevel->setSliderEnabled(true);
    m_recursionLevel->setLabel(i18n("Rec&ursion depth:"));
    if (recursionLevel == 0) {
        m_recursionLevel->setSpecialValueText(i18n("Endless"));
    }
    m_recursionLevel->setEnabled(recurseSubDir);
    whatsThis = i18n("<p>You can limit the number of folders the "
                     "image gallery creator will traverse to by setting an "
                     "upper bound for the recursion depth.</p>");
    m_recursionLevel->setWhatsThis(whatsThis);

    connect(m_recurseSubDir, SIGNAL(toggled(bool)),
            m_recursionLevel, SLOT(setEnabled(bool)));

    dvlay->addWidget(m_recurseSubDir);
    dvlay->addWidget(m_recursionLevel);

    m_copyOriginalFiles = new QCheckBox(i18n("Copy or&iginal files"), page);
    m_copyOriginalFiles->setChecked(group.readEntry("CopyOriginalFiles", false));
    dvlay->addWidget(m_copyOriginalFiles);
    whatsThis = i18n("<p>This makes a copy of all images and the gallery will refer "
                     "to these copies instead of the original images.</p>");
    m_copyOriginalFiles->setWhatsThis(whatsThis);

    const bool useCommentFile = group.readEntry("UseCommentFile", false);
    m_useCommentFile = new QCheckBox(i18n("Use &comment file"), page);
    m_useCommentFile->setChecked(useCommentFile);
    dvlay->addWidget(m_useCommentFile);

    whatsThis = i18n("<p>If you enable this option you can specify "
                     "a comment file which will be used for generating "
                     "subtitles for the images.</p>"
                     "<p>For details about the file format please see "
                     "the \"What's This?\" help below.</p>");
    m_useCommentFile->setWhatsThis(whatsThis);

    label = new QLabel(i18n("Comments &file:"), page);
    label->setEnabled(useCommentFile);
    dvlay->addWidget(label);
    whatsThis = i18n("<p>You can specify the name of the comment file here. "
                     "The comment file contains the subtitles for the images. "
                     "The format of this file is:</p>"
                     "<p>FILENAME1:"
                     "<br />Description"
                     "<br />"
                     "<br />FILENAME2:"
                     "<br />Description"
                     "<br />"
                     "<br />and so on</p>");
    label->setWhatsThis(whatsThis);

    m_commentFileReq = new KUrlRequester(QUrl::fromLocalFile(QString(path + "comments")), page);
    m_commentFileReq->setEnabled(useCommentFile);
    label->setBuddy(m_commentFileReq);
    dvlay->addWidget(m_commentFileReq);
    m_commentFileReq->setWhatsThis(whatsThis);

    connect(m_useCommentFile, SIGNAL(toggled(bool)),
            label, SLOT(setEnabled(bool)));
    connect(m_useCommentFile, SIGNAL(toggled(bool)),
            m_commentFileReq, SLOT(setEnabled(bool)));

    dvlay->addStretch(1);
}

void KIGPDialog::setupThumbnailPage(const QString &path)
{
    Q_UNUSED(path);

    QFrame *page = new QFrame();
    KPageWidgetItem *pageItem = new KPageWidgetItem(page, i18n("Thumbnails"));
    pageItem->setHeader(i18n("Thumbnails"));
    pageItem->setIcon(QIcon::fromTheme("view-preview"));
    addPage(pageItem);

    KConfigGroup group =  m_config->group("Thumbnails");
    QLabel *label;

    QVBoxLayout *vlay = new QVBoxLayout(page);
    vlay->setContentsMargins(0, 0, 0, 0);

    QHBoxLayout *hlay3 = new QHBoxLayout();
    vlay->addLayout(hlay3);

    m_imageFormat = new QComboBox(page);
    QStringList lstImgageFormat;
    lstImgageFormat << QStringLiteral("JPEG") << QStringLiteral("PNG");
    m_imageFormat->addItems(lstImgageFormat);
    m_imageFormat->setItemText(m_imageFormat->currentIndex(), group.readEntry("ImageFormat", "JPEG"));

    label = new QLabel(i18n("Image format f&or the thumbnails:"), page);
    hlay3->addWidget(label);
    label->setBuddy(m_imageFormat);
    hlay3->addStretch(1);
    hlay3->addWidget(m_imageFormat);

    m_thumbnailSize = new KIntNumInput(group.readEntry("ThumbnailSize", 140), page);
    m_thumbnailSize->setRange(10, 1000, 1);
    m_thumbnailSize->setLabel(i18n("Thumbnail size:"));
    m_thumbnailSize->setSliderEnabled(true);
    vlay->addWidget(m_thumbnailSize);

    QGridLayout *grid = new QGridLayout();
    grid->setContentsMargins(2, 2, 2, 2);
    grid->setSpacing(2);
    vlay->addLayout(grid);

    QHBoxLayout *hlay4 = new QHBoxLayout();
    vlay->addLayout(hlay4);
    const bool colorDepthSet = group.readEntry("ColorDepthSet", false);
    m_colorDepthSet = new QCheckBox(i18n("&Set different color depth:"), page);
    m_colorDepthSet->setChecked(colorDepthSet);
    hlay4->addWidget(m_colorDepthSet);

    m_colorDepth = new QComboBox(page);
    QStringList lst;
    lst << QStringLiteral("1") << QStringLiteral("8") << QStringLiteral("16") << QStringLiteral("32");
    m_colorDepth->addItems(lst);
    m_colorDepth->setItemText(m_colorDepth->currentIndex(), group.readEntry("ColorDepth", "8"));
    m_colorDepth->setEnabled(colorDepthSet);
    hlay4->addWidget(m_colorDepth);

    connect(m_colorDepthSet, SIGNAL(toggled(bool)),
            m_colorDepth, SLOT(setEnabled(bool)));

    vlay->addStretch(1);

}

void KIGPDialog::writeConfig()
{
    KConfigGroup group = m_config->group("Look");
    group.writeEntry("ImagesPerRow", getImagesPerRow());
    group.writeEntry("ImageName", printImageName());
    group.writeEntry("ImageSize", printImageSize());
    group.writeEntry("ImageProperty", printImageProperty());
    group.writeEntry("FontName", getFontName());
    group.writeEntry("FontSize", getFontSize());
    group.writeEntry("ForegroundColor", getForegroundColor().name());
    group.writeEntry("BackgroundColor", getBackgroundColor().name());

    group = m_config->group("Directory");
    group.writeEntry("RecurseSubDirectories", recurseSubDirectories());
    group.writeEntry("RecursionLevel", recursionLevel());
    group.writeEntry("CopyOriginalFiles", copyOriginalFiles());
    group.writeEntry("UseCommentFile", useCommentFile());

    group = m_config->group("Thumbnails");
    group.writeEntry("ThumbnailSize", getThumbnailSize());
    group.writeEntry("ColorDepth", getColorDepth());
    group.writeEntry("ColorDepthSet", colorDepthSet());
    group.writeEntry("ImageFormat", getImageFormat());
    group.sync();
}

KIGPDialog::~KIGPDialog()
{
    delete m_config;
}

void KIGPDialog::imageUrlChanged(const QString &url)
{
    buttonBox()->button(QDialogButtonBox::Ok)->setEnabled(!url.isEmpty());
}

bool  KIGPDialog::printImageName()  const
{
    return m_imageName->isChecked();
}

bool  KIGPDialog::printImageSize() const
{
    return m_imageSize->isChecked();
}

bool  KIGPDialog::printImageProperty() const
{
    return m_imageProperty->isChecked();
}

bool KIGPDialog::recurseSubDirectories() const
{
    return m_recurseSubDir->isChecked();
}

int KIGPDialog::recursionLevel() const
{
    return m_recursionLevel->value();
}

bool KIGPDialog::copyOriginalFiles() const
{
    return m_copyOriginalFiles->isChecked();
}

bool KIGPDialog::useCommentFile() const
{
    return m_useCommentFile->isChecked();
}

int KIGPDialog::getImagesPerRow() const
{
    return m_imagesPerRow->value();
}

int KIGPDialog::getThumbnailSize() const
{
    return m_thumbnailSize->value();
}

int KIGPDialog::getColorDepth() const
{
    return m_colorDepth->currentText().toInt();
}

bool KIGPDialog::colorDepthSet() const
{
    return m_colorDepthSet->isChecked();
}

const QString KIGPDialog::getTitle() const
{
    return m_title->text();
}

const QUrl KIGPDialog::getImageUrl() const
{
    return m_imageNameReq->url();
}

const QString KIGPDialog::getCommentFile() const
{
    return m_commentFileReq->url().toLocalFile();
}

const QString KIGPDialog::getFontName() const
{
    return m_fontName->currentText();
}

const QString KIGPDialog::getFontSize() const
{
    return m_fontSize->text();
}

const QColor KIGPDialog::getBackgroundColor() const
{
    return m_backgroundColor->color();
}

const QColor KIGPDialog::getForegroundColor() const
{
    return m_foregroundColor->color();
}

const QString KIGPDialog::getImageFormat() const
{
    return m_imageFormat->currentText();
}
