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327 lines
12 KiB
327 lines
12 KiB
/* ============================================================
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*
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* This file is a part of digiKam project
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* http://www.digikam.org
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*
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* Date : 2004-12-27
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* Description : a plugin to reduce lens distorsions to an image.
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*
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* Copyright (C) 2004-2008 by Gilles Caulier <caulier dot gilles at gmail dot com>
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* Copyright (C) 2006-2008 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
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*
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* This program is free software; you can redistribute it
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* and/or modify it under the terms of the GNU General
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* Public License as published by the Free Software Foundation;
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* either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* ============================================================ */
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// C++ includes.
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#include <cstring>
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#include <cmath>
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#include <cstdlib>
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// TQt includes.
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#include <tqbrush.h>
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#include <tqlabel.h>
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#include <tqlayout.h>
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#include <tqpainter.h>
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#include <tqpen.h>
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#include <tqpixmap.h>
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#include <tqwhatsthis.h>
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#include <tqimage.h>
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// KDE includes.
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#include <kaboutdata.h>
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#include <kapplication.h>
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#include <tdeconfig.h>
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#include <kiconloader.h>
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#include <klocale.h>
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#include <kstandarddirs.h>
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// LibKDcraw includes.
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#include <libkdcraw/rnuminput.h>
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// Local includes.
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#include "daboutdata.h"
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#include "ddebug.h"
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#include "imageiface.h"
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#include "imagewidget.h"
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#include "editortoolsettings.h"
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#include "lensdistortion.h"
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#include "lensdistortiontool.h"
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#include "lensdistortiontool.moc"
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using namespace KDcrawIface;
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using namespace Digikam;
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namespace DigikamLensDistortionImagesPlugin
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{
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LensDistortionTool::LensDistortionTool(TQObject* parent)
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: EditorToolThreaded(parent)
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{
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setName("lensdistortion");
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setToolName(i18n("Lens Distortion"));
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setToolIcon(SmallIcon("lensdistortion"));
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m_previewWidget = new ImageWidget("lensdistortion Tool", 0, TQString(),
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false, ImageGuideWidget::HVGuideMode);
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setToolView(m_previewWidget);
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// -------------------------------------------------------------
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m_gboxSettings = new EditorToolSettings(EditorToolSettings::Default|
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EditorToolSettings::Ok|
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EditorToolSettings::Cancel,
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EditorToolSettings::ColorGuide);
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TQGridLayout* grid = new TQGridLayout(m_gboxSettings->plainPage(), 9, 1);
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m_maskPreviewLabel = new TQLabel( m_gboxSettings->plainPage() );
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m_maskPreviewLabel->setAlignment ( TQt::AlignHCenter | TQt::AlignVCenter );
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TQWhatsThis::add( m_maskPreviewLabel, i18n("<p>You can see here a thumbnail preview of the distortion correction "
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"applied to a cross pattern.") );
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// -------------------------------------------------------------
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TQLabel *label1 = new TQLabel(i18n("Main:"), m_gboxSettings->plainPage());
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m_mainInput = new RDoubleNumInput(m_gboxSettings->plainPage());
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m_mainInput->setPrecision(1);
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m_mainInput->setRange(-100.0, 100.0, 0.1);
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m_mainInput->setDefaultValue(0.0);
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TQWhatsThis::add(m_mainInput, i18n("<p>This value controls the amount of distortion. Negative values correct lens barrel "
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"distortion, while positive values correct lens pincushion distortion."));
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// -------------------------------------------------------------
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TQLabel *label2 = new TQLabel(i18n("Edge:"), m_gboxSettings->plainPage());
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m_edgeInput = new RDoubleNumInput(m_gboxSettings->plainPage());
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m_edgeInput->setPrecision(1);
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m_edgeInput->setRange(-100.0, 100.0, 0.1);
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m_edgeInput->setDefaultValue(0.0);
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TQWhatsThis::add(m_edgeInput, i18n("<p>This value controls in the same manner as the Main control, but has more effect "
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"at the edges of the image than at the center."));
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// -------------------------------------------------------------
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TQLabel *label3 = new TQLabel(i18n("Zoom:"), m_gboxSettings->plainPage());
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m_rescaleInput = new RDoubleNumInput(m_gboxSettings->plainPage());
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m_rescaleInput->setPrecision(1);
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m_rescaleInput->setRange(-100.0, 100.0, 0.1);
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m_rescaleInput->setDefaultValue(0.0);
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TQWhatsThis::add(m_rescaleInput, i18n("<p>This value rescales the overall image size."));
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// -------------------------------------------------------------
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TQLabel *label4 = new TQLabel(i18n("Brighten:"), m_gboxSettings->plainPage());
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m_brightenInput = new RDoubleNumInput(m_gboxSettings->plainPage());
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m_brightenInput->setPrecision(1);
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m_brightenInput->setRange(-100.0, 100.0, 0.1);
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m_brightenInput->setDefaultValue(0.0);
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TQWhatsThis::add(m_brightenInput, i18n("<p>This value adjusts the brightness in image corners."));
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grid->addMultiCellWidget(m_maskPreviewLabel, 0, 0, 0, 1);
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grid->addMultiCellWidget(label1, 1, 1, 0, 1);
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grid->addMultiCellWidget(m_mainInput, 2, 2, 0, 1);
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grid->addMultiCellWidget(label2, 3, 3, 0, 1);
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grid->addMultiCellWidget(m_edgeInput, 4, 4, 0, 1);
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grid->addMultiCellWidget(label3, 5, 5, 0, 1);
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grid->addMultiCellWidget(m_rescaleInput, 6, 6, 0, 1);
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grid->addMultiCellWidget(label4, 7, 7, 0, 1);
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grid->addMultiCellWidget(m_brightenInput, 8, 8, 0, 1);
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grid->setRowStretch(9, 10);
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grid->setMargin(m_gboxSettings->spacingHint());
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grid->setSpacing(m_gboxSettings->spacingHint());
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setToolSettings(m_gboxSettings);
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init();
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// -------------------------------------------------------------
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connect(m_mainInput, TQT_SIGNAL(valueChanged(double)),
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this, TQT_SLOT(slotTimer()));
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connect(m_edgeInput, TQT_SIGNAL(valueChanged(double)),
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this, TQT_SLOT(slotTimer()));
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connect(m_rescaleInput, TQT_SIGNAL(valueChanged(double)),
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this, TQT_SLOT(slotTimer()));
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connect(m_brightenInput, TQT_SIGNAL(valueChanged(double)),
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this, TQT_SLOT(slotTimer()));
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connect(m_gboxSettings, TQT_SIGNAL(signalColorGuideChanged()),
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this, TQT_SLOT(slotColorGuideChanged()));
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// -------------------------------------------------------------
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/* Calc transform preview.
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We would like a checkered area to demonstrate the effect.
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We do not have any drawing support in DImg, so we let TQt draw.
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First we create a white TQImage. We convert this to a TQPixmap,
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on which we can draw. Then we convert back to TQImage,
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convert the TQImage to a DImg which we only need to create once, here.
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Later, we apply the effect on a copy and convert the DImg to TQPixmap.
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Longing for TQt4 where we can paint directly on the TQImage...
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*/
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TQImage preview(120, 120, 32);
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memset(preview.bits(), 255, preview.numBytes());
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TQPixmap pix (preview);
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TQPainter pt(&pix);
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pt.setPen( TQPen(TQt::black, 1) );
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pt.fillRect( 0, 0, pix.width(), pix.height(), TQBrush(TQt::black, TQt::CrossPattern) );
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pt.drawRect( 0, 0, pix.width(), pix.height() );
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pt.end();
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TQImage preview2(pix.convertToImage());
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m_previewRasterImage = DImg(preview2.width(), preview2.height(), false, false, preview2.bits());
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}
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LensDistortionTool::~LensDistortionTool()
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{
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}
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void LensDistortionTool::slotColorGuideChanged()
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{
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m_previewWidget->slotChangeGuideColor(m_gboxSettings->guideColor());
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m_previewWidget->slotChangeGuideSize(m_gboxSettings->guideSize());
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}
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void LensDistortionTool::readSettings()
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{
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TDEConfig *config = kapp->config();
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config->setGroup("lensdistortion Tool");
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m_mainInput->blockSignals(true);
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m_edgeInput->blockSignals(true);
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m_rescaleInput->blockSignals(true);
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m_brightenInput->blockSignals(true);
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m_mainInput->setValue(config->readDoubleNumEntry("2nd Order Distortion", m_mainInput->defaultValue()));
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m_edgeInput->setValue(config->readDoubleNumEntry("4th Order Distortion",m_edgeInput->defaultValue()));
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m_rescaleInput->setValue(config->readDoubleNumEntry("Zoom Factor", m_rescaleInput->defaultValue()));
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m_brightenInput->setValue(config->readDoubleNumEntry("Brighten", m_brightenInput->defaultValue()));
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m_gboxSettings->setGuideColor(config->readColorEntry("Guide Color", &TQt::red));
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m_gboxSettings->setGuideSize(config->readNumEntry("Guide Width", 1));
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m_mainInput->blockSignals(false);
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m_edgeInput->blockSignals(false);
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m_rescaleInput->blockSignals(false);
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m_brightenInput->blockSignals(false);
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slotColorGuideChanged();
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slotEffect();
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}
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void LensDistortionTool::writeSettings()
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{
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TDEConfig *config = kapp->config();
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config->setGroup("lensdistortion Tool");
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config->writeEntry("2nd Order Distortion", m_mainInput->value());
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config->writeEntry("4th Order Distortion", m_edgeInput->value());
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config->writeEntry("Zoom Factor", m_rescaleInput->value());
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config->writeEntry("Brighten", m_brightenInput->value());
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config->writeEntry("Guide Color", m_gboxSettings->guideColor());
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config->writeEntry("Guide Width", m_gboxSettings->guideSize());
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m_previewWidget->writeSettings();
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config->sync();
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}
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void LensDistortionTool::slotResetSettings()
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{
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m_mainInput->blockSignals(true);
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m_edgeInput->blockSignals(true);
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m_rescaleInput->blockSignals(true);
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m_brightenInput->blockSignals(true);
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m_mainInput->slotReset();
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m_edgeInput->slotReset();
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m_rescaleInput->slotReset();
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m_brightenInput->slotReset();
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m_mainInput->blockSignals(false);
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m_edgeInput->blockSignals(false);
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m_rescaleInput->blockSignals(false);
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m_brightenInput->blockSignals(false);
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}
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void LensDistortionTool::prepareEffect()
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{
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m_mainInput->setEnabled(false);
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m_edgeInput->setEnabled(false);
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m_rescaleInput->setEnabled(false);
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m_brightenInput->setEnabled(false);
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double m = m_mainInput->value();
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double e = m_edgeInput->value();
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double r = m_rescaleInput->value();
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double b = m_brightenInput->value();
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LensDistortion transformPreview(&m_previewRasterImage, 0L, m, e, r, b, 0, 0);
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m_maskPreviewLabel->setPixmap(TQPixmap(transformPreview.getTargetImage().convertToPixmap()));
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ImageIface* iface = m_previewWidget->imageIface();
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setFilter(dynamic_cast<DImgThreadedFilter*>(new LensDistortion(iface->getOriginalImg(), this, m, e, r, b, 0, 0)));
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}
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void LensDistortionTool::prepareFinal()
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{
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m_mainInput->setEnabled(false);
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m_edgeInput->setEnabled(false);
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m_rescaleInput->setEnabled(false);
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m_brightenInput->setEnabled(false);
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double m = m_mainInput->value();
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double e = m_edgeInput->value();
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double r = m_rescaleInput->value();
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double b = m_brightenInput->value();
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ImageIface iface(0, 0);
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setFilter(dynamic_cast<DImgThreadedFilter*>(new LensDistortion(iface.getOriginalImg(), this, m, e, r, b, 0, 0)));
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}
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void LensDistortionTool::putPreviewData()
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{
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ImageIface* iface = m_previewWidget->imageIface();
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DImg imDest = filter()->getTargetImage().smoothScale(iface->previewWidth(), iface->previewHeight());
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iface->putPreviewImage(imDest.bits());
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m_previewWidget->updatePreview();
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}
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void LensDistortionTool::putFinalData()
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{
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ImageIface iface(0, 0);
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iface.putOriginalImage(i18n("Lens Distortion"), filter()->getTargetImage().bits());
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}
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void LensDistortionTool::renderingFinished()
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{
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m_mainInput->setEnabled(true);
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m_edgeInput->setEnabled(true);
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m_rescaleInput->setEnabled(true);
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m_brightenInput->setEnabled(true);
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}
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} // NameSpace DigikamLensDistortionImagesPlugin
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