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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
#include "iconpreviewarea.h"
//! [0]
IconPreviewArea::IconPreviewArea(QWidget *parent)
: QWidget(parent)
{
QGridLayout *mainLayout = new QGridLayout;
setLayout(mainLayout);
stateLabels[0] = createHeaderLabel(tr("Off"));
stateLabels[1] = createHeaderLabel(tr("On"));
Q_ASSERT(NumStates == 2);
modeLabels[0] = createHeaderLabel(tr("Normal"));
modeLabels[1] = createHeaderLabel(tr("Active"));
modeLabels[2] = createHeaderLabel(tr("Disabled"));
modeLabels[3] = createHeaderLabel(tr("Selected"));
Q_ASSERT(NumModes == 4);
for (int j = 0; j < NumStates; ++j)
mainLayout->addWidget(stateLabels[j], j + 1, 0);
for (int i = 0; i < NumModes; ++i) {
mainLayout->addWidget(modeLabels[i], 0, i + 1);
for (int j = 0; j < NumStates; ++j) {
pixmapLabels[i][j] = createPixmapLabel();
mainLayout->addWidget(pixmapLabels[i][j], j + 1, i + 1);
}
}
}
//! [0]
//! [1]
void IconPreviewArea::setIcon(const QIcon &icon)
{
this->icon = icon;
updatePixmapLabels();
}
//! [1]
//! [2]
void IconPreviewArea::setSize(const QSize &size)
{
if (size != this->size) {
this->size = size;
updatePixmapLabels();
}
}
//! [2]
//! [3]
QLabel *IconPreviewArea::createHeaderLabel(const QString &text)
{
QLabel *label = new QLabel(tr("<b>%1</b>").arg(text));
label->setAlignment(Qt::AlignCenter);
return label;
}
//! [3]
//! [4]
QLabel *IconPreviewArea::createPixmapLabel()
{
QLabel *label = new QLabel;
label->setEnabled(false);
label->setAlignment(Qt::AlignCenter);
label->setFrameShape(QFrame::Box);
label->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
label->setBackgroundRole(QPalette::Base);
label->setAutoFillBackground(true);
label->setMinimumSize(132, 132);
return label;
}
//! [4]
//! [5]
void IconPreviewArea::updatePixmapLabels()
{
for (int i = 0; i < NumModes; ++i) {
QIcon::Mode mode;
if (i == 0) {
mode = QIcon::Normal;
} else if (i == 1) {
mode = QIcon::Active;
} else if (i == 2) {
mode = QIcon::Disabled;
} else {
mode = QIcon::Selected;
}
for (int j = 0; j < NumStates; ++j) {
QIcon::State state = (j == 0) ? QIcon::Off : QIcon::On;
QPixmap pixmap = icon.pixmap(size, mode, state);
pixmapLabels[i][j]->setPixmap(pixmap);
pixmapLabels[i][j]->setEnabled(!pixmap.isNull());
}
}
}
//! [5]
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