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/* Preview widget for KDE Display color scheme setup module
 * Copyright (C) 2007 Matthew Woehlke <mw_triad@users.sourceforge.net>
 * eventFilter code Copyright (C) 2007 Urs Wolfer <uwolfer @ kde.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.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#include "setpreviewwidget.h"

void setAutoFill(QWidget* widget)
{
    widget->setAutoFillBackground(true);
    widget->setBackgroundRole(QPalette::Base);
}

SetPreviewWidget::SetPreviewWidget(QWidget *parent) : QFrame(parent)
{
    setupUi(this);

    // set correct colors on... lots of things
    setAutoFillBackground(true);
    setBackgroundRole(QPalette::Base);
    setAutoFill(widgetBack0);
    setAutoFill(widgetBack1);
    setAutoFill(widgetBack2);
    setAutoFill(widgetBack3);
    setAutoFill(widgetBack4);
    setAutoFill(widgetBack5);
    setAutoFill(widgetBack6);
    setAutoFill(widgetBack7);
    setAutoFillBackground(true);
/*
    frame->setBackgroundRole(QPalette::Base);
    viewWidget->setBackgroundRole(QPalette::Base);
    labelView0->setBackgroundRole(QPalette::Base);
    labelView3->setBackgroundRole(QPalette::Base);
    labelView4->setBackgroundRole(QPalette::Base);
    labelView2->setBackgroundRole(QPalette::Base);
    labelView1->setBackgroundRole(QPalette::Base);
    labelView5->setBackgroundRole(QPalette::Base);
    labelView6->setBackgroundRole(QPalette::Base);
    labelView7->setBackgroundRole(QPalette::Base);
    selectionWidget->setBackgroundRole(QPalette::Highlight);
    labelSelection0->setBackgroundRole(QPalette::Highlight);
    labelSelection3->setBackgroundRole(QPalette::Highlight);
    labelSelection4->setBackgroundRole(QPalette::Highlight);
    labelSelection2->setBackgroundRole(QPalette::Highlight);
    labelSelection1->setBackgroundRole(QPalette::Highlight);
    labelSelection5->setBackgroundRole(QPalette::Highlight);
    labelSelection6->setBackgroundRole(QPalette::Highlight);
    labelSelection7->setBackgroundRole(QPalette::Highlight);
*/

    QList<QWidget*> widgets = findChildren<QWidget*>();
    foreach (QWidget* widget, widgets)
    {
        widget->installEventFilter(this);
        widget->setFocusPolicy(Qt::NoFocus);
    }
}

SetPreviewWidget::~SetPreviewWidget()
{
}

bool SetPreviewWidget::eventFilter(QObject *, QEvent *ev)
{
    switch (ev->type())
    {
        case QEvent::MouseButtonPress:
        case QEvent::MouseButtonRelease:
        case QEvent::MouseButtonDblClick:
        case QEvent::MouseMove:
        case QEvent::KeyPress:
        case QEvent::KeyRelease:
        case QEvent::Enter:
        case QEvent::Leave:
        case QEvent::Wheel:
        case QEvent::ContextMenu:
            return true; // ignore
        default:
            break;
    }
    return false;
}

void SetPreviewWidget::setPalette(const KSharedConfigPtr &config,
                                  KColorScheme::ColorSet set)
{
    QPalette palette = KColorScheme::createApplicationPalette(config);
    KColorScheme::adjustBackground(palette, KColorScheme::NormalBackground,
                                   QPalette::Base, set, config);
    QFrame::setPalette(palette);

#define SET_ROLE_PALETTE(n, f, b) \
    KColorScheme::adjustForeground(palette, KColorScheme::f, QPalette::Text, set, config); \
    labelFore##n->setPalette(palette); \
    KColorScheme::adjustBackground(palette, KColorScheme::b, QPalette::Base, set, config); \
    labelBack##n->setPalette(palette); \
    widgetBack##n->setPalette(palette);

    SET_ROLE_PALETTE(0, NormalText,   NormalBackground);
    SET_ROLE_PALETTE(1, InactiveText, AlternateBackground);
    SET_ROLE_PALETTE(2, ActiveText,   ActiveBackground);
    SET_ROLE_PALETTE(3, LinkText,     LinkBackground);
    SET_ROLE_PALETTE(4, VisitedText,  VisitedBackground);
    SET_ROLE_PALETTE(5, NegativeText, NegativeBackground);
    SET_ROLE_PALETTE(6, NeutralText,  NeutralBackground);
    SET_ROLE_PALETTE(7, PositiveText, PositiveBackground);

    KColorScheme kcs(QPalette::Active, set, config);
    QBrush deco;

#define SET_DECO_PALETTE(n, d) \
    deco = kcs.decoration(KColorScheme::d); \
    palette.setBrush(QPalette::Text, deco); \
    labelFore##n->setPalette(palette); \

    SET_DECO_PALETTE(8, HoverColor);
    SET_DECO_PALETTE(9, FocusColor);
}