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/* ============================================================
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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 : 2004-07-16
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* Description : digiKam image editor to adjust Hue, Saturation,
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* and Lightness of picture.
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*
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* Copyright (C) 2004-2007 by Gilles Caulier <caulier dot gilles at gmail dot com>
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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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// TQt includes.
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#include <tqcolor.h>
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#include <tqgroupbox.h>
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#include <tqhgroupbox.h>
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#include <tqvgroupbox.h>
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#include <tqvbox.h>
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#include <tqhbuttongroup.h>
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#include <tqlabel.h>
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#include <tqlayout.h>
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#include <tqframe.h>
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#include <tqlabel.h>
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#include <tqpushbutton.h>
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#include <tqcombobox.h>
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#include <tqwhatsthis.h>
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#include <tqtooltip.h>
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#include <tqtimer.h>
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// KDE includes.
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#include <knuminput.h>
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#include <klocale.h>
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#include <kapplication.h>
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#include <kconfig.h>
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#include <kcursor.h>
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#include <kstandarddirs.h>
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#include <kcolordialog.h>
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// Digikam includes.
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#include "imageiface.h"
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#include "imagewidget.h"
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#include "histogramwidget.h"
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#include "colorgradientwidget.h"
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#include "hslmodifier.h"
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#include "dimg.h"
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// Local includes.
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#include "hspreviewwidget.h"
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#include "imageeffect_hsl.h"
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#include "imageeffect_hsl.moc"
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namespace DigikamImagesPluginCore
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{
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ImageEffect_HSL::ImageEffect_HSL(TQWidget* tqparent)
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: Digikam::ImageDlgBase(tqparent, i18n("Hue/Saturation/Lightness"), "hsladjust", false)
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{
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m_destinationPreviewData = 0L;
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setHelp("hsladjusttool.anchor", "digikam");
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m_previewWidget = new Digikam::ImageWidget("hsladjust Tool Dialog", plainPage(),
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i18n("<p>Here you can see the image "
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"Hue/Saturation/Lightness adjustments preview. "
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"You can pick color on image "
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"to see the color level corresponding on histogram."));
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setPreviewAreaWidget(m_previewWidget);
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// -------------------------------------------------------------
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TQWidget *gboxSettings = new TQWidget(plainPage());
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TQGridLayout* gridSettings = new TQGridLayout(gboxSettings, 11, 4, spacingHint());
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TQLabel *label1 = new TQLabel(i18n("Channel:"), gboxSettings);
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label1->tqsetAlignment ( TQt::AlignRight | TQt::AlignVCenter );
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m_channelCB = new TQComboBox( false, gboxSettings );
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m_channelCB->insertItem( i18n("Luminosity") );
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m_channelCB->insertItem( i18n("Red") );
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m_channelCB->insertItem( i18n("Green") );
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m_channelCB->insertItem( i18n("Blue") );
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TQWhatsThis::add( m_channelCB, i18n("<p>Select the histogram channel to display here:<p>"
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"<b>Luminosity</b>: display the image's luminosity values.<p>"
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"<b>Red</b>: display the red image-channel values.<p>"
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"<b>Green</b>: display the green image-channel values.<p>"
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"<b>Blue</b>: display the blue image-channel values.<p>"));
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m_scaleBG = new TQHButtonGroup(gboxSettings);
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m_scaleBG->setExclusive(true);
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m_scaleBG->setFrameShape(TQFrame::NoFrame);
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m_scaleBG->setInsideMargin( 0 );
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TQWhatsThis::add( m_scaleBG, i18n("<p>Select the histogram scale here.<p>"
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"If the image's maximal counts are small, you can use the linear scale.<p>"
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"Logarithmic scale can be used when the maximal counts are big; "
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"if it is used, all values (small and large) will be visible on the graph."));
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TQPushButton *linHistoButton = new TQPushButton( m_scaleBG );
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TQToolTip::add( linHistoButton, i18n( "<p>Linear" ) );
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m_scaleBG->insert(linHistoButton, Digikam::HistogramWidget::LinScaleHistogram);
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KGlobal::dirs()->addResourceType("histogram-lin", KGlobal::dirs()->kde_default("data") + "digikam/data");
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TQString directory = KGlobal::dirs()->findResourceDir("histogram-lin", "histogram-lin.png");
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linHistoButton->setPixmap( TQPixmap( directory + "histogram-lin.png" ) );
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linHistoButton->setToggleButton(true);
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TQPushButton *logHistoButton = new TQPushButton( m_scaleBG );
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TQToolTip::add( logHistoButton, i18n( "<p>Logarithmic" ) );
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m_scaleBG->insert(logHistoButton, Digikam::HistogramWidget::LogScaleHistogram);
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KGlobal::dirs()->addResourceType("histogram-log", KGlobal::dirs()->kde_default("data") + "digikam/data");
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directory = KGlobal::dirs()->findResourceDir("histogram-log", "histogram-log.png");
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logHistoButton->setPixmap( TQPixmap( directory + "histogram-log.png" ) );
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logHistoButton->setToggleButton(true);
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TQHBoxLayout* l1 = new TQHBoxLayout();
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l1->addWidget(label1);
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l1->addWidget(m_channelCB);
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l1->addStretch(10);
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l1->addWidget(m_scaleBG);
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gridSettings->addMultiCellLayout(l1, 0, 0, 0, 4);
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// -------------------------------------------------------------
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TQVBox *histoBox = new TQVBox(gboxSettings);
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m_histogramWidget = new Digikam::HistogramWidget(256, 140, histoBox, false, true, true);
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TQWhatsThis::add( m_histogramWidget, i18n("<p>Here you can see the target preview image histogram drawing "
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"of the selected image channel. This one is re-computed at any "
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"settings changes."));
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TQLabel *space = new TQLabel(histoBox);
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space->setFixedHeight(1);
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m_hGradient = new Digikam::ColorGradientWidget( Digikam::ColorGradientWidget::Horizontal, 10, histoBox );
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m_hGradient->setColors( TQColor( "black" ), TQColor( "white" ) );
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gridSettings->addMultiCellWidget(histoBox, 1, 2, 0, 4);
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// -------------------------------------------------------------
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m_HSSelector = new KHSSelector(gboxSettings);
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TQWhatsThis::add( m_HSSelector, i18n("<p>Select the hue and saturation adjustments of the image here."));
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m_HSSelector->setMinimumSize(256, 142);
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gridSettings->addMultiCellWidget(m_HSSelector, 3, 3, 0, 4);
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m_HSPreview = new HSPreviewWidget(gboxSettings, spacingHint());
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TQWhatsThis::add( m_HSPreview, i18n("<p>You can see here a color preview of the hue and "
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"saturation adjustments."));
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m_HSPreview->setMinimumSize(256, 15);
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gridSettings->addMultiCellWidget(m_HSPreview, 4, 4, 0, 4);
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TQLabel *label2 = new TQLabel(i18n("Hue:"), gboxSettings);
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m_hInput = new KDoubleNumInput(gboxSettings);
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m_hInput->setPrecision(0);
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m_hInput->setRange(-180.0, 180.0, 1.0, true);
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m_hInput->setValue(0.0);
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TQWhatsThis::add( m_hInput, i18n("<p>Set here the hue adjustment of the image."));
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gridSettings->addMultiCellWidget(label2, 5, 5, 0, 4);
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gridSettings->addMultiCellWidget(m_hInput, 6, 6, 0, 4);
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TQLabel *label3 = new TQLabel(i18n("Saturation:"), gboxSettings);
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m_sInput = new KDoubleNumInput(gboxSettings);
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m_sInput->setPrecision(2);
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m_sInput->setRange(-100.0, 100.0, 0.01, true);
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m_sInput->setValue(0.0);
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TQWhatsThis::add( m_sInput, i18n("<p>Set here the saturation adjustment of the image."));
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gridSettings->addMultiCellWidget(label3, 7, 7, 0, 4);
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gridSettings->addMultiCellWidget(m_sInput, 8, 8, 0, 4);
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TQLabel *label4 = new TQLabel(i18n("Lightness:"), gboxSettings);
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m_lInput = new KDoubleNumInput(gboxSettings);
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m_lInput->setPrecision(2);
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m_lInput->setRange(-100.0, 100.0, 0.01, true);
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m_lInput->setValue(0.0);
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TQWhatsThis::add( m_lInput, i18n("<p>Set here the lightness adjustment of the image."));
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gridSettings->addMultiCellWidget(label4, 9, 9, 0, 4);
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gridSettings->addMultiCellWidget(m_lInput, 10, 10, 0, 4);
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gridSettings->setRowStretch(11, 10);
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setUserAreaWidget(gboxSettings);
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// -------------------------------------------------------------
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connect(m_HSSelector, TQT_SIGNAL(valueChanged(int, int)),
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this, TQT_SLOT(slotHSChanged(int, int)));
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connect(m_channelCB, TQT_SIGNAL(activated(int)),
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this, TQT_SLOT(slotChannelChanged(int)));
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connect(m_scaleBG, TQT_SIGNAL(released(int)),
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this, TQT_SLOT(slotScaleChanged(int)));
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connect(m_previewWidget, TQT_SIGNAL(spotPositionChangedFromTarget( const Digikam::DColor &, const TQPoint & )),
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this, TQT_SLOT(slotColorSelectedFromTarget( const Digikam::DColor & )));
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connect(m_hInput, TQT_SIGNAL(valueChanged (double)),
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this, TQT_SLOT(slotTimer()));
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connect(m_hInput, TQT_SIGNAL(valueChanged (double)),
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this, TQT_SLOT(slotHChanged(double)));
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connect(m_sInput, TQT_SIGNAL(valueChanged (double)),
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this, TQT_SLOT(slotTimer()));
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connect(m_sInput, TQT_SIGNAL(valueChanged (double)),
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this, TQT_SLOT(slotSChanged(double)));
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connect(m_lInput, TQT_SIGNAL(valueChanged (double)),
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this, TQT_SLOT(slotTimer()));
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connect(m_previewWidget, TQT_SIGNAL(signalResized()),
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this, TQT_SLOT(slotEffect()));
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// -------------------------------------------------------------
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enableButtonOK( false );
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}
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ImageEffect_HSL::~ImageEffect_HSL()
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{
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m_histogramWidget->stopHistogramComputation();
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if (m_destinationPreviewData)
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delete [] m_destinationPreviewData;
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delete m_histogramWidget;
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delete m_previewWidget;
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}
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void ImageEffect_HSL::slotChannelChanged(int channel)
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{
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switch(channel)
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{
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case LuminosityChannel:
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m_histogramWidget->m_channelType = Digikam::HistogramWidget::ValueHistogram;
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m_hGradient->setColors( TQColor( "black" ), TQColor( "white" ) );
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break;
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case RedChannel:
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m_histogramWidget->m_channelType = Digikam::HistogramWidget::RedChannelHistogram;
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m_hGradient->setColors( TQColor( "black" ), TQColor( "red" ) );
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break;
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case GreenChannel:
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m_histogramWidget->m_channelType = Digikam::HistogramWidget::GreenChannelHistogram;
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m_hGradient->setColors( TQColor( "black" ), TQColor( "green" ) );
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break;
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case BlueChannel:
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m_histogramWidget->m_channelType = Digikam::HistogramWidget::BlueChannelHistogram;
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m_hGradient->setColors( TQColor( "black" ), TQColor( "blue" ) );
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break;
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}
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m_histogramWidget->tqrepaint(false);
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}
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void ImageEffect_HSL::slotScaleChanged(int scale)
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{
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m_histogramWidget->m_scaleType = scale;
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m_histogramWidget->tqrepaint(false);
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}
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void ImageEffect_HSL::slotColorSelectedFromTarget( const Digikam::DColor &color )
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{
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m_histogramWidget->setHistogramGuideByColor(color);
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}
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void ImageEffect_HSL::slotHSChanged(int h, int s)
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{
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double hue = double(h);
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if (h >= 180 && h <= 359)
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hue = double(h) - 359.0;
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double sat = ((double)s * (200.0/255.0)) - 100.0;
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m_hInput->blockSignals(true);
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m_sInput->blockSignals(true);
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m_hInput->setValue(hue);
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m_sInput->setValue(sat);
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m_hInput->blockSignals(false);
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m_sInput->blockSignals(false);
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slotTimer();
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}
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void ImageEffect_HSL::slotHChanged(double h)
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{
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int hue = int(h);
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if (h >= -180 && h < 0)
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hue = int(h) + 359;
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m_HSSelector->blockSignals(true);
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m_HSSelector->setXValue(hue);
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m_HSSelector->blockSignals(false);
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}
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void ImageEffect_HSL::slotSChanged(double s)
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{
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int sat = (int)((s + 100.0) * (255.0/200.0));
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m_HSSelector->blockSignals(true);
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m_HSSelector->setYValue(sat);
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m_HSSelector->blockSignals(false);
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}
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void ImageEffect_HSL::readUserSettings()
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{
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KConfig* config = kapp->config();
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config->setGroup("hsladjust Tool Dialog");
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m_channelCB->setCurrentItem(config->readNumEntry("Histogram Channel", 0)); // Luminosity.
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m_scaleBG->setButton(config->readNumEntry("Histogram Scale", Digikam::HistogramWidget::LogScaleHistogram));
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m_hInput->setValue(config->readDoubleNumEntry("HueAjustment", 0.0));
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m_sInput->setValue(config->readDoubleNumEntry("SaturationAjustment", 0.0));
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m_lInput->setValue(config->readDoubleNumEntry("LighnessAjustment", 0.0));
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slotHChanged(m_hInput->value());
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slotSChanged(m_sInput->value());
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slotChannelChanged(m_channelCB->currentItem());
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slotScaleChanged(m_scaleBG->selectedId());
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}
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void ImageEffect_HSL::writeUserSettings()
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{
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KConfig* config = kapp->config();
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config->setGroup("hsladjust Tool Dialog");
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config->writeEntry("Histogram Channel", m_channelCB->currentItem());
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config->writeEntry("Histogram Scale", m_scaleBG->selectedId());
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config->writeEntry("HueAjustment", m_hInput->value());
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config->writeEntry("SaturationAjustment", m_sInput->value());
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config->writeEntry("LighnessAjustment", m_lInput->value());
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config->sync();
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}
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void ImageEffect_HSL::resetValues()
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{
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m_hInput->blockSignals(true);
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m_sInput->blockSignals(true);
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m_lInput->blockSignals(true);
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m_hInput->setValue(0.0);
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m_sInput->setValue(0.0);
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m_lInput->setValue(0.0);
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slotHChanged(0.0);
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slotSChanged(0.0);
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m_hInput->blockSignals(false);
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m_sInput->blockSignals(false);
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m_lInput->blockSignals(false);
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}
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void ImageEffect_HSL::slotEffect()
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{
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kapp->setOverrideCursor( KCursor::waitCursor() );
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double hu = m_hInput->value();
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double sa = m_sInput->value();
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double lu = m_lInput->value();
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enableButtonOK( hu != 0.0 || sa != 0.0 || lu != 0.0);
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m_HSPreview->setHS(hu, sa);
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m_histogramWidget->stopHistogramComputation();
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if (m_destinationPreviewData)
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delete [] m_destinationPreviewData;
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Digikam::ImageIface* iface = m_previewWidget->imageIface();
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m_destinationPreviewData = iface->getPreviewImage();
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int w = iface->previewWidth();
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int h = iface->previewHeight();
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bool a = iface->previewHasAlpha();
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bool sb = iface->previewSixteenBit();
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Digikam::DImg preview(w, h, sb, a, m_destinationPreviewData);
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Digikam::HSLModifier cmod;
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cmod.setHue(hu);
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cmod.setSaturation(sa);
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cmod.setLightness(lu);
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cmod.applyHSL(preview);
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iface->putPreviewImage(preview.bits());
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m_previewWidget->updatePreview();
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// Update histogram.
|
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|
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memcpy(m_destinationPreviewData, preview.bits(), preview.numBytes());
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m_histogramWidget->updateData(m_destinationPreviewData, w, h, sb, 0, 0, 0, false);
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|
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kapp->restoreOverrideCursor();
|
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}
|
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|
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void ImageEffect_HSL::finalRendering()
|
|
|
|
{
|
|
|
|
kapp->setOverrideCursor( KCursor::waitCursor() );
|
|
|
|
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|
|
|
double hu = m_hInput->value();
|
|
|
|
double sa = m_sInput->value();
|
|
|
|
double lu = m_lInput->value();
|
|
|
|
|
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|
|
Digikam::ImageIface* iface = m_previewWidget->imageIface();
|
|
|
|
uchar *data = iface->getOriginalImage();
|
|
|
|
int w = iface->originalWidth();
|
|
|
|
int h = iface->originalHeight();
|
|
|
|
bool a = iface->originalHasAlpha();
|
|
|
|
bool sb = iface->originalSixteenBit();
|
|
|
|
Digikam::DImg original(w, h, sb, a, data);
|
|
|
|
delete [] data;
|
|
|
|
|
|
|
|
Digikam::HSLModifier cmod;
|
|
|
|
cmod.setHue(hu);
|
|
|
|
cmod.setSaturation(sa);
|
|
|
|
cmod.setLightness(lu);
|
|
|
|
cmod.applyHSL(original);
|
|
|
|
|
|
|
|
iface->putOriginalImage(i18n("HSL Adjustments"), original.bits());
|
|
|
|
kapp->restoreOverrideCursor();
|
|
|
|
accept();
|
|
|
|
}
|
|
|
|
|
|
|
|
} // NameSpace DigikamImagesPluginCore
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