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/* ============================================================
*
* This file is a part of digiKam project
* http://www.digikam.org
*
* Date : 2005-02-17
* Description : a plugin to change image perspective .
*
* Copyright (C) 2005-2012 by Gilles Caulier <caulier dot gilles at gmail dot com>
* Copyright (C) 2006-2012 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
*
* 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, 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.
*
* ============================================================ */
#include "perspectivetool.moc"
// Qt includes
#include <QCheckBox>
#include <QFrame>
#include <QGridLayout>
#include <QGroupBox>
#include <QLabel>
#include <QPushButton>
#include <QSpinBox>
#include <QVBoxLayout>
// KDE includes
#include <kapplication.h>
#include <kcolorbutton.h>
#include <kconfig.h>
#include <kconfiggroup.h>
#include <kcursor.h>
#include <kglobal.h>
#include <kiconloader.h>
#include <klocale.h>
#include <kpushbutton.h>
#include <kseparator.h>
#include <kstandarddirs.h>
// Local includes
#include "dimg.h"
#include "editortoolsettings.h"
#include "imageiface.h"
#include "perspectivewidget.h"
namespace DigikamTransformImagePlugin
{
class PerspectiveTool::Private
{
public:
Private() :
newWidthLabel(0),
newHeightLabel(0),
topLeftAngleLabel(0),
topRightAngleLabel(0),
bottomLeftAngleLabel(0),
bottomRightAngleLabel(0),
drawWhileMovingCheckBox(0),
drawGridCheckBox(0),
inverseTransformation(0),
previewWidget(0),
gboxSettings(0)
{}
static const QString configGroupName;
static const QString configDrawWhileMovingEntry;
static const QString configDrawGridEntry;
static const QString configInverseTransformationEntry;
QLabel* newWidthLabel;
QLabel* newHeightLabel;
QLabel* topLeftAngleLabel;
QLabel* topRightAngleLabel;
QLabel* bottomLeftAngleLabel;
QLabel* bottomRightAngleLabel;
QCheckBox* drawWhileMovingCheckBox;
QCheckBox* drawGridCheckBox;
QCheckBox* inverseTransformation;
PerspectiveWidget* previewWidget;
EditorToolSettings* gboxSettings;
};
const QString PerspectiveTool::Private::configGroupName("perspective Tool");
const QString PerspectiveTool::Private::configDrawWhileMovingEntry("Draw While Moving");
const QString PerspectiveTool::Private::configDrawGridEntry("Draw Grid");
const QString PerspectiveTool::Private::configInverseTransformationEntry("Inverse Transformation");
// --------------------------------------------------------
PerspectiveTool::PerspectiveTool(QObject* const parent)
: EditorTool(parent),
d(new Private)
{
setObjectName("perspective");
setToolName(i18n("Perspective"));
setToolIcon(SmallIcon("perspective"));
// -------------------------------------------------------------
QFrame* frame = new QFrame(0);
frame->setFrameStyle(QFrame::Panel|QFrame::Sunken);
QVBoxLayout* l = new QVBoxLayout(frame);
d->previewWidget = new PerspectiveWidget(525, 350, frame);
l->addWidget(d->previewWidget);
d->previewWidget->setWhatsThis(i18n("This is the perspective transformation operation preview. "
"You can use the mouse for dragging the corner to adjust the "
"perspective transformation area."));
setToolView(frame);
// -------------------------------------------------------------
QString temp;
ImageIface iface;
d->gboxSettings = new EditorToolSettings;
d->gboxSettings->setTools(EditorToolSettings::ColorGuide);
// -------------------------------------------------------------
QLabel* label1 = new QLabel(i18n("New width:"));
d->newWidthLabel = new QLabel(temp.setNum( iface.originalSize().width()) + i18n(" px"));
d->newWidthLabel->setAlignment( Qt::AlignBottom | Qt::AlignRight );
QLabel* label2 = new QLabel(i18n("New height:"));
d->newHeightLabel = new QLabel(temp.setNum( iface.originalSize().height()) + i18n(" px"));
d->newHeightLabel->setAlignment( Qt::AlignBottom | Qt::AlignRight );
// -------------------------------------------------------------
KSeparator* line = new KSeparator (Qt::Horizontal);
QLabel* angleLabel = new QLabel(i18n("Angles (in degrees):"));
QLabel* label3 = new QLabel(i18n(" Top left:"));
d->topLeftAngleLabel = new QLabel;
QLabel* label4 = new QLabel(i18n(" Top right:"));
d->topRightAngleLabel = new QLabel;
QLabel* label5 = new QLabel(i18n(" Bottom left:"));
d->bottomLeftAngleLabel = new QLabel;
QLabel* label6 = new QLabel(i18n(" Bottom right:"));
d->bottomRightAngleLabel = new QLabel;
// -------------------------------------------------------------
KSeparator* line2 = new KSeparator (Qt::Horizontal);
d->drawWhileMovingCheckBox = new QCheckBox(i18n("Draw preview while moving"));
d->drawGridCheckBox = new QCheckBox(i18n("Draw grid"));
d->inverseTransformation = new QCheckBox(i18n("Inverse transformation"));
// -------------------------------------------------------------
QGridLayout* grid = new QGridLayout;
grid->addWidget(label1, 0, 0, 1, 1);
grid->addWidget(d->newWidthLabel, 0, 1, 1, 2);
grid->addWidget(label2, 1, 0, 1, 1);
grid->addWidget(d->newHeightLabel, 1, 1, 1, 2);
grid->addWidget(line, 2, 0, 1, 3);
grid->addWidget(angleLabel, 3, 0, 1, 3);
grid->addWidget(label3, 4, 0, 1, 1);
grid->addWidget(d->topLeftAngleLabel, 4, 1, 1, 2);
grid->addWidget(label4, 5, 0, 1, 1);
grid->addWidget(d->topRightAngleLabel, 5, 1, 1, 2);
grid->addWidget(label5, 6, 0, 1, 1);
grid->addWidget(d->bottomLeftAngleLabel, 6, 1, 1, 2);
grid->addWidget(label6, 7, 0, 1, 1);
grid->addWidget(d->bottomRightAngleLabel, 7, 1, 1, 2);
grid->addWidget(line2, 8, 0, 1, 3);
grid->addWidget(d->drawWhileMovingCheckBox, 9, 0, 1, 3);
grid->addWidget(d->drawGridCheckBox, 10, 0, 1, 3);
grid->addWidget(d->inverseTransformation, 11, 0, 1, 3);
grid->setColumnStretch(1, 10);
grid->setRowStretch(12, 10);
grid->setMargin(d->gboxSettings->spacingHint());
grid->setSpacing(d->gboxSettings->spacingHint());
d->gboxSettings->plainPage()->setLayout(grid);
// -------------------------------------------------------------
setToolSettings(d->gboxSettings);
init();
// -------------------------------------------------------------
connect(d->previewWidget, SIGNAL(signalPerspectiveChanged(QRect,float,float,float,float,bool)),
this, SLOT(slotUpdateInfo(QRect,float,float,float,float,bool)));
connect(d->drawWhileMovingCheckBox, SIGNAL(toggled(bool)),
d->previewWidget, SLOT(slotToggleDrawWhileMoving(bool)));
connect(d->drawGridCheckBox, SIGNAL(toggled(bool)),
d->previewWidget, SLOT(slotToggleDrawGrid(bool)));
connect(d->inverseTransformation, SIGNAL(toggled(bool)),
this, SLOT(slotInverseTransformationChanged(bool)));
connect(d->gboxSettings, SIGNAL(signalColorGuideChanged()),
this, SLOT(slotColorGuideChanged()));
}
PerspectiveTool::~PerspectiveTool()
{
delete d;
}
void PerspectiveTool::slotColorGuideChanged()
{
d->previewWidget->slotChangeGuideColor(d->gboxSettings->guideColor());
d->previewWidget->slotChangeGuideSize(d->gboxSettings->guideSize());
}
void PerspectiveTool::readSettings()
{
QColor defaultGuideColor(Qt::red);
KSharedConfig::Ptr config = KGlobal::config();
KConfigGroup group = config->group(d->configGroupName);
d->drawWhileMovingCheckBox->setChecked(group.readEntry( d->configDrawWhileMovingEntry, true));
d->drawGridCheckBox->setChecked(group.readEntry( d->configDrawGridEntry, false));
d->inverseTransformation->setChecked(group.readEntry( d->configInverseTransformationEntry, false));
d->previewWidget->slotToggleDrawWhileMoving(d->drawWhileMovingCheckBox->isChecked());
d->previewWidget->slotToggleDrawGrid(d->drawGridCheckBox->isChecked());
}
void PerspectiveTool::writeSettings()
{
KSharedConfig::Ptr config = KGlobal::config();
KConfigGroup group = config->group(d->configGroupName);
group.writeEntry(d->configDrawWhileMovingEntry, d->drawWhileMovingCheckBox->isChecked());
group.writeEntry(d->configDrawGridEntry, d->drawGridCheckBox->isChecked());
group.writeEntry(d->configInverseTransformationEntry, d->inverseTransformation->isChecked());
config->sync();
}
void PerspectiveTool::slotResetSettings()
{
d->previewWidget->reset();
}
void PerspectiveTool::finalRendering()
{
kapp->setOverrideCursor(Qt::WaitCursor);
d->previewWidget->applyPerspectiveAdjustment();
kapp->restoreOverrideCursor();
}
void PerspectiveTool::slotUpdateInfo(const QRect& newSize, float topLeftAngle, float topRightAngle,
float bottomLeftAngle, float bottomRightAngle, bool valid)
{
QString temp;
d->newWidthLabel->setText(temp.setNum(newSize.width()) + i18n(" px"));
d->newHeightLabel->setText(temp.setNum(newSize.height()) + i18n(" px"));
d->topLeftAngleLabel->setText(temp.setNum(topLeftAngle, 'f', 1));
d->topRightAngleLabel->setText(temp.setNum(topRightAngle, 'f', 1));
d->bottomLeftAngleLabel->setText(temp.setNum(bottomLeftAngle, 'f', 1));
d->bottomRightAngleLabel->setText(temp.setNum(bottomRightAngle, 'f', 1));
d->gboxSettings->button(EditorToolSettings::Ok)->setEnabled(valid);
}
void PerspectiveTool::slotInverseTransformationChanged(bool b)
{
d->drawWhileMovingCheckBox->setEnabled(!b);
d->drawGridCheckBox->setEnabled(!b);
d->previewWidget->slotInverseTransformationChanged(b);
}
void PerspectiveTool::setBackgroundColor(const QColor& bg)
{
d->previewWidget->setBackgroundColor(bg);
}
} // namespace DigikamTransformImagePlugin
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