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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "dpi_chooser.h"
#include <deviceprofile_p.h>
#include <QtGui/QComboBox>
#include <QtGui/QSpinBox>
#include <QtGui/QLabel>
#include <QtGui/QVBoxLayout>
#include <QtGui/QHBoxLayout>
#include <QtGui/QPushButton>
#include <QtGui/QCheckBox>
QT_BEGIN_NAMESPACE
enum { minDPI = 50, maxDPI = 400 };
namespace qdesigner_internal {
// Entry struct for predefined values
struct DPI_Entry {
int dpiX;
int dpiY;
const char *description;
};
const struct DPI_Entry dpiEntries[] = {
//: Embedded device standard screen resolution
{ 96, 96, QT_TRANSLATE_NOOP("DPI_Chooser", "Standard (96 x 96)") },
//: Embedded device screen resolution
{ 179, 185, QT_TRANSLATE_NOOP("DPI_Chooser", "Greenphone (179 x 185)") },
//: Embedded device high definition screen resolution
{ 192, 192, QT_TRANSLATE_NOOP("DPI_Chooser", "High (192 x 192)") }
};
} // namespace qdesigner_internal
QT_END_NAMESPACE
Q_DECLARE_METATYPE(const struct qdesigner_internal::DPI_Entry*);
QT_BEGIN_NAMESPACE
namespace qdesigner_internal {
// ------------- DPI_Chooser
DPI_Chooser::DPI_Chooser(QWidget *parent) :
QWidget(parent),
m_systemEntry(new DPI_Entry),
m_predefinedCombo(new QComboBox),
m_dpiXSpinBox(new QSpinBox),
m_dpiYSpinBox(new QSpinBox)
{
// Predefined settings: System
DeviceProfile::systemResolution(&(m_systemEntry->dpiX), &(m_systemEntry->dpiY));
m_systemEntry->description = 0;
const struct DPI_Entry *systemEntry = m_systemEntry;
//: System resolution
m_predefinedCombo->addItem(tr("System (%1 x %2)").arg(m_systemEntry->dpiX).arg(m_systemEntry->dpiY), qVariantFromValue(systemEntry));
// Devices. Exclude the system values as not to duplicate the entries
const int predefinedCount = sizeof(dpiEntries)/sizeof(DPI_Entry);
const struct DPI_Entry *ecend = dpiEntries + predefinedCount;
for (const struct DPI_Entry *it = dpiEntries; it < ecend; ++it)
if (it->dpiX != m_systemEntry->dpiX || it->dpiY != m_systemEntry->dpiY)
m_predefinedCombo->addItem(tr(it->description), qVariantFromValue(it));
m_predefinedCombo->addItem(tr("User defined"));
setFocusProxy(m_predefinedCombo);
m_predefinedCombo->setEditable(false);
m_predefinedCombo->setCurrentIndex(0);
connect(m_predefinedCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(syncSpinBoxes()));
// top row with predefined settings
QVBoxLayout *vBoxLayout = new QVBoxLayout;
vBoxLayout->setMargin(0);
vBoxLayout->addWidget(m_predefinedCombo);
// Spin box row
QHBoxLayout *hBoxLayout = new QHBoxLayout;
hBoxLayout->setMargin(0);
m_dpiXSpinBox->setMinimum(minDPI);
m_dpiXSpinBox->setMaximum(maxDPI);
hBoxLayout->addWidget(m_dpiXSpinBox);
//: DPI X/Y separator
hBoxLayout->addWidget(new QLabel(tr(" x ")));
m_dpiYSpinBox->setMinimum(minDPI);
m_dpiYSpinBox->setMaximum(maxDPI);
hBoxLayout->addWidget(m_dpiYSpinBox);
hBoxLayout->addStretch();
vBoxLayout->addLayout(hBoxLayout);
setLayout(vBoxLayout);
syncSpinBoxes();
}
DPI_Chooser::~DPI_Chooser()
{
delete m_systemEntry;
}
void DPI_Chooser::getDPI(int *dpiX, int *dpiY) const
{
*dpiX = m_dpiXSpinBox->value();
*dpiY = m_dpiYSpinBox->value();
}
void DPI_Chooser::setDPI(int dpiX, int dpiY)
{
// Default to system if it is something weird
const bool valid = dpiX >= minDPI && dpiX <= maxDPI && dpiY >= minDPI && dpiY <= maxDPI;
if (!valid) {
m_predefinedCombo->setCurrentIndex(0);
return;
}
// Try to find the values among the predefined settings
const int count = m_predefinedCombo->count();
int predefinedIndex = -1;
for (int i = 0; i < count; i++) {
const QVariant data = m_predefinedCombo->itemData(i);
if (data.type() != QVariant::Invalid) {
const struct DPI_Entry *entry = qvariant_cast<const struct DPI_Entry *>(data);
if (entry->dpiX == dpiX && entry->dpiY == dpiY) {
predefinedIndex = i;
break;
}
}
}
if (predefinedIndex != -1) {
m_predefinedCombo->setCurrentIndex(predefinedIndex); // triggers syncSpinBoxes()
} else {
setUserDefinedValues(dpiX, dpiY);
}
}
void DPI_Chooser::setUserDefinedValues(int dpiX, int dpiY)
{
const bool blocked = m_predefinedCombo->blockSignals(true);
m_predefinedCombo->setCurrentIndex(m_predefinedCombo->count() - 1);
m_predefinedCombo->blockSignals(blocked);
m_dpiXSpinBox->setEnabled(true);
m_dpiYSpinBox->setEnabled(true);
m_dpiXSpinBox->setValue(dpiX);
m_dpiYSpinBox->setValue(dpiY);
}
void DPI_Chooser::syncSpinBoxes()
{
const int predefIdx = m_predefinedCombo->currentIndex();
const QVariant data = m_predefinedCombo->itemData(predefIdx);
// Predefined mode in which spin boxes are disabled or user defined?
const bool userSetting = data.type() == QVariant::Invalid;
m_dpiXSpinBox->setEnabled(userSetting);
m_dpiYSpinBox->setEnabled(userSetting);
if (!userSetting) {
const struct DPI_Entry *entry = qvariant_cast<const struct DPI_Entry *>(data);
m_dpiXSpinBox->setValue(entry->dpiX);
m_dpiYSpinBox->setValue(entry->dpiY);
}
}
}
QT_END_NAMESPACE
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