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digikam/digikam/utilities/imageeditor/tools/imageresize.cpp

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/* ============================================================
*
* This file is a part of digiKam project
* http://www.digikam.org
*
* Date : 2005-04-07
* Description : a tool to resize an image
*
* Copyright (C) 2005-2009 by Gilles Caulier <caulier dot gilles at gmail dot com>
*
* 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.
*
* ============================================================ */
// C++ includes.
#include <cmath>
// TQt includes.
#include <tqvgroupbox.h>
#include <tqlabel.h>
#include <tqpushbutton.h>
#include <tqtooltip.h>
#include <tqwhatsthis.h>
#include <tqlayout.h>
#include <tqframe.h>
#include <tqcheckbox.h>
#include <tqcombobox.h>
#include <tqtabwidget.h>
#include <tqtimer.h>
#include <tqevent.h>
#include <tqpixmap.h>
#include <tqbrush.h>
#include <tqfile.h>
#include <tqimage.h>
// KDE includes.
#include <kseparator.h>
#include <kcursor.h>
#include <kurllabel.h>
#include <klocale.h>
#include <kiconloader.h>
#include <kapplication.h>
#include <tdefiledialog.h>
#include <kstandarddirs.h>
#include <kprogress.h>
#include <kmessagebox.h>
#include <knuminput.h>
#include <kglobalsettings.h>
// LibKDcraw includes.
#include <libkdcraw/rnuminput.h>
// Digikam includes.
#include "dimg.h"
#include "ddebug.h"
#include "imageiface.h"
#include "dimgthreadedfilter.h"
#include "greycstorationiface.h"
#include "greycstorationwidget.h"
#include "greycstorationsettings.h"
// Local includes.
#include "imageresize.h"
#include "imageresize.moc"
using namespace KDcrawIface;
namespace Digikam
{
class ImageResizePriv
{
public:
enum RunningMode
{
NoneRendering=0,
FinalRendering
};
ImageResizePriv()
{
currentRenderingMode = NoneRendering;
parent = 0;
preserveRatioBox = 0;
useGreycstorationBox = 0;
mainTab = 0;
wInput = 0;
hInput = 0;
wpInput = 0;
hpInput = 0;
progressBar = 0;
greycstorationIface = 0;
settingsWidget = 0;
cimgLogoLabel = 0;
restorationTips = 0;
}
int currentRenderingMode;
int orgWidth;
int orgHeight;
int prevW;
int prevH;
double prevWP;
double prevHP;
TQWidget *parent;
TQLabel *restorationTips;
TQCheckBox *preserveRatioBox;
TQCheckBox *useGreycstorationBox;
TQTabWidget *mainTab;
RIntNumInput *wInput;
RIntNumInput *hInput;
RDoubleNumInput *wpInput;
RDoubleNumInput *hpInput;
KProgress *progressBar;
KURLLabel *cimgLogoLabel;
GreycstorationIface *greycstorationIface;
GreycstorationWidget *settingsWidget;
};
ImageResize::ImageResize(TQWidget* parent)
: KDialogBase(Plain, i18n("Resize Image"),
Help|Default|User2|User3|Ok|Cancel, Ok,
parent, 0, true, false,
TQString(),
i18n("&Save As..."),
i18n("&Load..."))
{
d = new ImageResizePriv;
d->parent = parent;
setHelp("resizetool.anchor", "digikam");
TQString whatsThis;
setButtonWhatsThis( Default, i18n("<p>Reset all filter parameters to their default values.") );
setButtonWhatsThis( User3, i18n("<p>Load all filter parameters from settings text file.") );
setButtonWhatsThis( User2, i18n("<p>Save all filter parameters to settings text file.") );
enableButton(Ok, false);
ImageIface iface(0, 0);
d->orgWidth = iface.originalWidth();
d->orgHeight = iface.originalHeight();
d->prevW = d->orgWidth;
d->prevH = d->orgHeight;
d->prevWP = 100.0;
d->prevHP = 100.0;
// -------------------------------------------------------------
TQVBoxLayout *vlay = new TQVBoxLayout(plainPage(), 0, spacingHint());
d->mainTab = new TQTabWidget( plainPage() );
TQWidget* firstPage = new TQWidget( d->mainTab );
TQGridLayout* grid = new TQGridLayout( firstPage, 8, 2, spacingHint());
d->mainTab->addTab( firstPage, i18n("New Size") );
TQLabel *label1 = new TQLabel(i18n("Width:"), firstPage);
d->wInput = new RIntNumInput(firstPage);
d->wInput->setRange(1, TQMAX(d->orgWidth * 10, 9999), 1);
d->wInput->setName("d->wInput");
d->wInput->setDefaultValue(d->orgWidth);
TQWhatsThis::add( d->wInput, i18n("<p>Set here the new image width in pixels."));
TQLabel *label2 = new TQLabel(i18n("Height:"), firstPage);
d->hInput = new RIntNumInput(firstPage);
d->hInput->setRange(1, TQMAX(d->orgHeight * 10, 9999), 1);
d->hInput->setName("d->hInput");
d->hInput->setDefaultValue(d->orgHeight);
TQWhatsThis::add( d->hInput, i18n("<p>Set here the new image height in pixels."));
TQLabel *label3 = new TQLabel(i18n("Width (%):"), firstPage);
d->wpInput = new RDoubleNumInput(firstPage);
d->wpInput->setRange(1.0, 999.0, 1.0);
d->wpInput->setName("d->wpInput");
d->wpInput->setDefaultValue(100.0);
TQWhatsThis::add( d->wpInput, i18n("<p>Set here the new image width in percent."));
TQLabel *label4 = new TQLabel(i18n("Height (%):"), firstPage);
d->hpInput = new RDoubleNumInput(firstPage);
d->hpInput->setRange(1.0, 999.0, 1.0);
d->hpInput->setName("d->hpInput");
d->hpInput->setDefaultValue(100.0);
TQWhatsThis::add( d->hpInput, i18n("<p>Set here the new image height in percent."));
d->preserveRatioBox = new TQCheckBox(i18n("Maintain aspect ratio"), firstPage);
TQWhatsThis::add( d->preserveRatioBox, i18n("<p>Enable this option to maintain aspect "
"ratio with new image sizes."));
d->cimgLogoLabel = new KURLLabel(firstPage);
d->cimgLogoLabel->setText(TQString());
d->cimgLogoLabel->setURL("http://cimg.sourceforge.net");
TDEGlobal::dirs()->addResourceType("logo-cimg", TDEGlobal::dirs()->kde_default("data") +
"digikam/data");
TQString directory = TDEGlobal::dirs()->findResourceDir("logo-cimg", "logo-cimg.png");
d->cimgLogoLabel->setPixmap( TQPixmap( directory + "logo-cimg.png" ) );
TQToolTip::add(d->cimgLogoLabel, i18n("Visit CImg library website"));
d->useGreycstorationBox = new TQCheckBox(i18n("Restore photograph"), firstPage);
TQWhatsThis::add( d->useGreycstorationBox, i18n("<p>Enable this option to restore photograph content. "
"This way is usefull to scale-up an image to an huge size. "
"Warning: this process can take a while."));
d->restorationTips = new TQLabel(i18n("<b>Note: use Restoration Mode to only scale-up an image to huge size. "
"Warning, this process can take a while.</b>"), firstPage);
d->progressBar = new KProgress(100, firstPage);
d->progressBar->setValue(0);
TQWhatsThis::add(d->progressBar, i18n("<p>This shows the current progress when you use Restoration mode."));
grid->addMultiCellWidget(d->preserveRatioBox, 0, 0, 0, 2);
grid->addMultiCellWidget(label1, 1, 1, 0, 0);
grid->addMultiCellWidget(d->wInput, 1, 1, 1, 2);
grid->addMultiCellWidget(label2, 2, 2, 0, 0);
grid->addMultiCellWidget(d->hInput, 2, 2, 1, 2);
grid->addMultiCellWidget(label3, 3, 3, 0, 0);
grid->addMultiCellWidget(d->wpInput, 3, 3, 1, 2);
grid->addMultiCellWidget(label4, 4, 4, 0, 0);
grid->addMultiCellWidget(d->hpInput, 4, 4, 1, 2);
grid->addMultiCellWidget(new KSeparator(firstPage), 5, 5, 0, 2);
grid->addMultiCellWidget(d->cimgLogoLabel, 6, 8, 0, 0);
grid->addMultiCellWidget(d->useGreycstorationBox, 6, 6, 1, 2);
grid->addMultiCellWidget(d->restorationTips, 7, 7, 1, 2);
grid->addMultiCellWidget(d->progressBar, 8, 8, 1, 2);
grid->setRowStretch(8, 10);
// -------------------------------------------------------------
d->settingsWidget = new GreycstorationWidget(d->mainTab);
vlay->addWidget(d->mainTab);
// -------------------------------------------------------------
adjustSize();
disableResize();
TQTimer::singleShot(0, this, TQT_SLOT(readUserSettings()));
// -------------------------------------------------------------
connect(d->cimgLogoLabel, TQT_SIGNAL(leftClickedURL(const TQString&)),
this, TQT_SLOT(processCImgURL(const TQString&)));
connect(d->wInput, TQT_SIGNAL(valueChanged(int)),
this, TQT_SLOT(slotValuesChanged()));
connect(d->hInput, TQT_SIGNAL(valueChanged(int)),
this, TQT_SLOT(slotValuesChanged()));
connect(d->wpInput, TQT_SIGNAL(valueChanged(double)),
this, TQT_SLOT(slotValuesChanged()));
connect(d->hpInput, TQT_SIGNAL(valueChanged(double)),
this, TQT_SLOT(slotValuesChanged()));
connect(d->useGreycstorationBox, TQT_SIGNAL(toggled(bool)),
this, TQT_SLOT(slotRestorationToggled(bool)) );
// -------------------------------------------------------------
Digikam::GreycstorationSettings defaults;
defaults.setResizeDefaultSettings();
d->settingsWidget->setDefaultSettings(defaults);
}
ImageResize::~ImageResize()
{
if (d->greycstorationIface)
delete d->greycstorationIface;
delete d;
}
void ImageResize::slotRestorationToggled(bool b)
{
d->settingsWidget->setEnabled(b);
d->progressBar->setEnabled(b);
d->cimgLogoLabel->setEnabled(b);
enableButton(User2, b);
enableButton(User3, b);
}
void ImageResize::readUserSettings()
{
TDEConfig* config = kapp->config();
config->setGroup("resize Tool Dialog");
GreycstorationSettings settings;
GreycstorationSettings defaults;
defaults.setResizeDefaultSettings();
settings.fastApprox = config->readBoolEntry("FastApprox", defaults.fastApprox);
settings.interp = config->readNumEntry("Interpolation", defaults.interp);
settings.amplitude = config->readDoubleNumEntry("Amplitude", defaults.amplitude);
settings.sharpness = config->readDoubleNumEntry("Sharpness", defaults.sharpness);
settings.anisotropy = config->readDoubleNumEntry("Anisotropy", defaults.anisotropy);
settings.alpha = config->readDoubleNumEntry("Alpha", defaults.alpha);
settings.sigma = config->readDoubleNumEntry("Sigma", defaults.sigma);
settings.gaussPrec = config->readDoubleNumEntry("GaussPrec", defaults.gaussPrec);
settings.dl = config->readDoubleNumEntry("Dl", defaults.dl);
settings.da = config->readDoubleNumEntry("Da", defaults.da);
settings.nbIter = config->readNumEntry("Iteration", defaults.nbIter);
settings.tile = config->readNumEntry("Tile", defaults.tile);
settings.btile = config->readNumEntry("BTile", defaults.btile);
d->settingsWidget->setSettings(settings);
d->useGreycstorationBox->setChecked(config->readBoolEntry("RestorePhotograph", false));
slotRestorationToggled(d->useGreycstorationBox->isChecked());
d->preserveRatioBox->blockSignals(true);
d->wInput->blockSignals(true);
d->hInput->blockSignals(true);
d->wpInput->blockSignals(true);
d->hpInput->blockSignals(true);
d->preserveRatioBox->setChecked(true);
d->wInput->slotReset();
d->hInput->slotReset();
d->wpInput->slotReset();
d->hpInput->slotReset();
d->preserveRatioBox->blockSignals(false);
d->wInput->blockSignals(false);
d->hInput->blockSignals(false);
d->wpInput->blockSignals(false);
d->hpInput->blockSignals(false);
}
void ImageResize::writeUserSettings()
{
GreycstorationSettings settings = d->settingsWidget->getSettings();
TDEConfig* config = kapp->config();
config->setGroup("resize Tool Dialog");
config->writeEntry("FastApprox", settings.fastApprox);
config->writeEntry("Interpolation", settings.interp);
config->writeEntry("Amplitude", settings.amplitude);
config->writeEntry("Sharpness", settings.sharpness);
config->writeEntry("Anisotropy", settings.anisotropy);
config->writeEntry("Alpha", settings.alpha);
config->writeEntry("Sigma", settings.sigma);
config->writeEntry("GaussPrec", settings.gaussPrec);
config->writeEntry("Dl", settings.dl);
config->writeEntry("Da", settings.da);
config->writeEntry("Iteration", settings.nbIter);
config->writeEntry("Tile", settings.tile);
config->writeEntry("BTile", settings.btile);
config->writeEntry("RestorePhotograph", d->useGreycstorationBox->isChecked());
config->sync();
}
void ImageResize::slotDefault()
{
GreycstorationSettings settings;
settings.setResizeDefaultSettings();
d->settingsWidget->setSettings(settings);
d->useGreycstorationBox->setChecked(false);
slotRestorationToggled(d->useGreycstorationBox->isChecked());
d->preserveRatioBox->blockSignals(true);
d->wInput->blockSignals(true);
d->hInput->blockSignals(true);
d->wpInput->blockSignals(true);
d->hpInput->blockSignals(true);
d->preserveRatioBox->setChecked(true);
d->wInput->setValue(d->orgWidth);
d->hInput->setValue(d->orgHeight);
d->wpInput->setValue(100.0);
d->hpInput->setValue(100.0);
d->preserveRatioBox->blockSignals(false);
d->wInput->blockSignals(false);
d->hInput->blockSignals(false);
d->wpInput->blockSignals(false);
d->hpInput->blockSignals(false);
}
void ImageResize::slotValuesChanged()
{
enableButton(Ok, true);
d->wInput->blockSignals(true);
d->hInput->blockSignals(true);
d->wpInput->blockSignals(true);
d->hpInput->blockSignals(true);
TQString s(TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name());
if (s == "d->wInput")
{
double val = d->wInput->value();
double wp = val/(double)(d->orgWidth) * 100.0;
d->wpInput->setValue(wp);
if (d->preserveRatioBox->isChecked())
{
d->hpInput->setValue(wp);
int h = (int)(wp*d->orgHeight/100);
d->hInput->setValue(h);
}
}
else if (s == "d->hInput")
{
double val = d->hInput->value();
double hp = val/(double)(d->orgHeight) * 100.0;
d->hpInput->setValue(hp);
if (d->preserveRatioBox->isChecked())
{
d->wpInput->setValue(hp);
int w = (int)(hp*d->orgWidth/100);
d->wInput->setValue(w);
}
}
else if (s == "d->wpInput")
{
double val = d->wpInput->value();
int w = (int)(val*d->orgWidth/100);
d->wInput->setValue(w);
if (d->preserveRatioBox->isChecked())
{
d->hpInput->setValue(val);
int h = (int)(val*d->orgHeight/100);
d->hInput->setValue(h);
}
}
else if (s == "d->hpInput")
{
double val = d->hpInput->value();
int h = (int)(val*d->orgHeight/100);
d->hInput->setValue(h);
if (d->preserveRatioBox->isChecked())
{
d->wpInput->setValue(val);
int w = (int)(val*d->orgWidth/100);
d->wInput->setValue(w);
}
}
d->prevW = d->wInput->value();
d->prevH = d->hInput->value();
d->prevWP = d->wpInput->value();
d->prevHP = d->hpInput->value();
d->wInput->blockSignals(false);
d->hInput->blockSignals(false);
d->wpInput->blockSignals(false);
d->hpInput->blockSignals(false);
}
void ImageResize::slotCancel()
{
if (d->currentRenderingMode != ImageResizePriv::NoneRendering)
{
d->greycstorationIface->stopComputation();
d->parent->unsetCursor();
}
done(Cancel);
}
void ImageResize::processCImgURL(const TQString& url)
{
TDEApplication::kApplication()->invokeBrowser(url);
}
void ImageResize::closeEvent(TQCloseEvent *e)
{
if (d->currentRenderingMode != ImageResizePriv::NoneRendering)
{
d->greycstorationIface->stopComputation();
d->parent->unsetCursor();
}
e->accept();
}
void ImageResize::slotOk()
{
if (d->prevW != d->wInput->value() || d->prevH != d->hInput->value() ||
d->prevWP != d->wpInput->value() || d->prevHP != d->hpInput->value())
slotValuesChanged();
d->currentRenderingMode = ImageResizePriv::FinalRendering;
d->mainTab->setCurrentPage(0);
d->settingsWidget->setEnabled(false);
d->preserveRatioBox->setEnabled(false);
d->useGreycstorationBox->setEnabled(false);
d->wInput->setEnabled(false);
d->hInput->setEnabled(false);
d->wpInput->setEnabled(false);
d->hpInput->setEnabled(false);
enableButton(Ok, false);
enableButton(Default, false);
enableButton(User2, false);
enableButton(User3, false);
d->parent->setCursor( KCursor::waitCursor() );
writeUserSettings();
ImageIface iface(0, 0);
uchar *data = iface.getOriginalImage();
DImg image = DImg(iface.originalWidth(), iface.originalHeight(),
iface.originalSixteenBit(), iface.originalHasAlpha(), data);
delete [] data;
if (d->useGreycstorationBox->isChecked())
{
d->progressBar->setValue(0);
d->progressBar->setEnabled(true);
if (d->greycstorationIface)
{
delete d->greycstorationIface;
d->greycstorationIface = 0;
}
d->greycstorationIface = new GreycstorationIface(
&image, d->settingsWidget->getSettings(),
GreycstorationIface::Resize,
d->wInput->value(),
d->hInput->value(),
0, TQT_TQOBJECT(this));
}
else
{
// See B.K.O #152192: CImg resize() sound like bugous or unadapted
// to resize image without good quality.
image.resize(d->wInput->value(), d->hInput->value());
iface.putOriginalImage(i18n("Resize"), image.bits(),
image.width(), image.height());
d->parent->unsetCursor();
accept();
}
}
void ImageResize::customEvent(TQCustomEvent *event)
{
if (!event) return;
GreycstorationIface::EventData *data = (GreycstorationIface::EventData*) event->data();
if (!data) return;
if (data->starting) // Computation in progress !
{
d->progressBar->setValue(data->progress);
}
else
{
if (data->success) // Computation Completed !
{
switch (d->currentRenderingMode)
{
case ImageResizePriv::FinalRendering:
{
DDebug() << "Final resizing completed..." << endl;
ImageIface iface(0, 0);
DImg resizedImage = d->greycstorationIface->getTargetImage();
iface.putOriginalImage(i18n("Resize"), resizedImage.bits(),
resizedImage.width(), resizedImage.height());
d->parent->unsetCursor();
accept();
break;
}
}
}
else // Computation Failed !
{
switch (d->currentRenderingMode)
{
case ImageResizePriv::FinalRendering:
break;
}
}
}
delete data;
}
void ImageResize::slotUser3()
{
KURL loadBlowupFile = KFileDialog::getOpenURL(TDEGlobalSettings::documentPath(),
TQString( "*" ), this,
TQString( i18n("Photograph Resizing Settings File to Load")) );
if( loadBlowupFile.isEmpty() )
return;
TQFile file(loadBlowupFile.path());
if ( file.open(IO_ReadOnly) )
{
if (!d->settingsWidget->loadSettings(file, TQString("# Photograph Resizing Configuration File")))
{
KMessageBox::error(this,
i18n("\"%1\" is not a Photograph Resizing settings text file.")
.arg(loadBlowupFile.fileName()));
file.close();
return;
}
}
else
KMessageBox::error(this, i18n("Cannot load settings from the Photograph Resizing text file."));
file.close();
}
void ImageResize::slotUser2()
{
KURL saveBlowupFile = KFileDialog::getSaveURL(TDEGlobalSettings::documentPath(),
TQString( "*" ), this,
TQString( i18n("Photograph Resizing Settings File to Save")) );
if( saveBlowupFile.isEmpty() )
return;
TQFile file(saveBlowupFile.path());
if ( file.open(IO_WriteOnly) )
d->settingsWidget->saveSettings(file, TQString("# Photograph Resizing Configuration File"));
else
KMessageBox::error(this, i18n("Cannot save settings to the Photograph Resizing text file."));
file.close();
}
} // NameSpace Digikam
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