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digikam/digikam/imageplugins/adjustcurves/adjustcurvestool.cpp

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/* ============================================================
*
* This file is a part of digiKam project
* http://www.digikam.org
*
* Date : 2004-12-01
* Description : image histogram adjust curves.
*
* Copyright (C) 2004-2008 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 <tqlayout.h>
#include <tqcolor.h>
#include <tqgroupbox.h>
#include <tqhgroupbox.h>
#include <tqvgroupbox.h>
#include <tqlabel.h>
#include <tqpainter.h>
#include <tqcombobox.h>
#include <tqspinbox.h>
#include <tqwhatsthis.h>
#include <tqtooltip.h>
#include <tqpushbutton.h>
#include <tqlayout.h>
#include <tqframe.h>
#include <tqtimer.h>
#include <tqhbuttongroup.h>
#include <tqpixmap.h>
// KDE includes.
#include <tdeconfig.h>
#include <kcursor.h>
#include <klocale.h>
#include <knuminput.h>
#include <kmessagebox.h>
#include <kselect.h>
#include <tdefiledialog.h>
#include <kglobalsettings.h>
#include <kaboutdata.h>
#include <khelpmenu.h>
#include <kiconloader.h>
#include <kapplication.h>
#include <kpopupmenu.h>
#include <kstandarddirs.h>
#include <kpushbutton.h>
// Local includes.
#include "daboutdata.h"
#include "ddebug.h"
#include "dimg.h"
#include "imageiface.h"
#include "imagewidget.h"
#include "imagehistogram.h"
#include "imagecurves.h"
#include "editortoolsettings.h"
#include "histogramwidget.h"
#include "curveswidget.h"
#include "colorgradientwidget.h"
#include "dimgimagefilters.h"
#include "adjustcurvestool.h"
#include "adjustcurvestool.moc"
using namespace Digikam;
namespace DigikamAdjustCurvesImagesPlugin
{
AdjustCurvesTool::AdjustCurvesTool(TQObject* parent)
: EditorTool(parent)
{
m_destinationPreviewData = 0;
ImageIface iface(0, 0);
m_originalImage = iface.getOriginalImg();
m_histoSegments = m_originalImage->sixteenBit() ? 65535 : 255;
setName("adjustcurves");
setToolName(i18n("Adjust Curves"));
setToolIcon(SmallIcon("adjustcurves"));
// -------------------------------------------------------------
m_previewWidget = new ImageWidget("adjustcurves Tool", 0,
i18n("<p>This is the image's curve-adjustments preview. "
"You can pick a spot on the image "
"to see the corresponding level in the histogram."));
setToolView(m_previewWidget);
// -------------------------------------------------------------
m_gboxSettings = new EditorToolSettings(EditorToolSettings::Default|
EditorToolSettings::Load|
EditorToolSettings::SaveAs|
EditorToolSettings::Ok|
EditorToolSettings::Cancel);
TQGridLayout* grid = new TQGridLayout(m_gboxSettings->plainPage(), 5, 5);
TQLabel *label1 = new TQLabel(i18n("Channel:"), m_gboxSettings->plainPage());
label1->setAlignment ( TQt::AlignRight | TQt::AlignVCenter );
m_channelCB = new TQComboBox( false, m_gboxSettings->plainPage() );
m_channelCB->insertItem( i18n("Luminosity") );
m_channelCB->insertItem( i18n("Red") );
m_channelCB->insertItem( i18n("Green") );
m_channelCB->insertItem( i18n("Blue") );
m_channelCB->insertItem( i18n("Alpha") );
m_channelCB->setCurrentText( i18n("Luminosity") );
TQWhatsThis::add( m_channelCB, i18n("<p>Select the histogram channel to display here:<p>"
"<b>Luminosity</b>: display the image's luminosity values.<p>"
"<b>Red</b>: display the red image-channel values.<p>"
"<b>Green</b>: display the green image-channel values.<p>"
"<b>Blue</b>: display the blue image-channel values.<p>"
"<b>Alpha</b>: display the alpha image-channel values. "
"This channel corresponds to the transparency value and "
"is supported by some image formats, such as PNG or TIF."));
m_scaleBG = new TQHButtonGroup(m_gboxSettings->plainPage());
TQWhatsThis::add( m_scaleBG, i18n("<p>Select the histogram scale here.<p>"
"If the image's maximal counts are small, you can use the linear scale.<p>"
"Logarithmic scale can be used when the maximal counts are big; "
"if it is used, all values (small and large) will be visible on the graph."));
TQPushButton *linHistoButton = new TQPushButton( m_scaleBG );
TQToolTip::add( linHistoButton, i18n( "<p>Linear" ) );
m_scaleBG->insert(linHistoButton, CurvesWidget::LinScaleHistogram);
TDEGlobal::dirs()->addResourceType("histogram-lin", TDEGlobal::dirs()->kde_default("data") + "digikam/data");
TQString directory = TDEGlobal::dirs()->findResourceDir("histogram-lin", "histogram-lin.png");
linHistoButton->setPixmap( TQPixmap( directory + "histogram-lin.png" ) );
linHistoButton->setToggleButton(true);
TQPushButton *logHistoButton = new TQPushButton( m_scaleBG );
TQToolTip::add( logHistoButton, i18n( "<p>Logarithmic" ) );
m_scaleBG->insert(logHistoButton, CurvesWidget::LogScaleHistogram);
TDEGlobal::dirs()->addResourceType("histogram-log", TDEGlobal::dirs()->kde_default("data") + "digikam/data");
directory = TDEGlobal::dirs()->findResourceDir("histogram-log", "histogram-log.png");
logHistoButton->setPixmap( TQPixmap( directory + "histogram-log.png" ) );
logHistoButton->setToggleButton(true);
m_scaleBG->setExclusive(true);
m_scaleBG->setButton(CurvesWidget::LogScaleHistogram);
m_scaleBG->setFrameShape(TQFrame::NoFrame);
m_scaleBG->setInsideMargin(0);
TQHBoxLayout* l1 = new TQHBoxLayout();
l1->addWidget(label1);
l1->addWidget(m_channelCB);
l1->addStretch(10);
l1->addWidget(m_scaleBG);
// -------------------------------------------------------------
TQWidget *curveBox = new TQWidget(m_gboxSettings->plainPage());
TQGridLayout* gl = new TQGridLayout(curveBox, 4, 2, 0);
m_histogramWidget = new HistogramWidget(256, 140, curveBox, false, true, true);
TQWhatsThis::add( m_histogramWidget, i18n("<p>Here you can see the target preview image histogram drawing "
"of the selected image channel. This one is re-computed at any "
"curves settings changes."));
m_vGradient = new ColorGradientWidget( ColorGradientWidget::Vertical, 10, curveBox );
m_vGradient->setColors( TQColor( "white" ), TQColor( "black" ) );
TQLabel *spacev = new TQLabel(curveBox);
spacev->setFixedWidth(1);
m_curvesWidget = new CurvesWidget(256, 256, m_originalImage->bits(), m_originalImage->width(),
m_originalImage->height(), m_originalImage->sixteenBit(),
curveBox);
TQWhatsThis::add( m_curvesWidget, i18n("<p>This is the curve drawing of the selected channel from "
"original image"));
TQLabel *spaceh = new TQLabel(curveBox);
spaceh->setFixedHeight(1);
m_hGradient = new ColorGradientWidget( ColorGradientWidget::Horizontal, 10, curveBox );
m_hGradient->setColors( TQColor( "black" ), TQColor( "white" ) );
gl->addMultiCellWidget(m_histogramWidget, 0, 0, 2, 2);
gl->addMultiCellWidget(m_vGradient, 2, 2, 0, 0);
gl->addMultiCellWidget(spacev, 2, 2, 1, 1);
gl->addMultiCellWidget(m_curvesWidget, 2, 2, 2, 2);
gl->addMultiCellWidget(spaceh, 3, 3, 2, 2);
gl->addMultiCellWidget(m_hGradient, 4, 4, 2, 2);
gl->setRowSpacing(1, m_gboxSettings->spacingHint());
// -------------------------------------------------------------
m_curveType = new TQHButtonGroup(m_gboxSettings->plainPage());
m_curveFree = new TQPushButton(m_curveType);
m_curveType->insert(m_curveFree, FreeDrawing);
TDEGlobal::dirs()->addResourceType("curvefree", TDEGlobal::dirs()->kde_default("data") +
"digikam/data");
directory = TDEGlobal::dirs()->findResourceDir("curvefree", "curvefree.png");
m_curveFree->setPixmap( TQPixmap( directory + "curvefree.png" ) );
m_curveFree->setToggleButton(true);
TQToolTip::add( m_curveFree, i18n( "Curve free mode" ) );
TQWhatsThis::add( m_curveFree, i18n("<p>With this button, you can draw your curve free-hand with the mouse."));
m_curveSmooth = new TQPushButton(m_curveType);
m_curveType->insert(m_curveSmooth, SmoothDrawing);
TDEGlobal::dirs()->addResourceType("curvemooth", TDEGlobal::dirs()->kde_default("data") +
"digikam/data");
directory = TDEGlobal::dirs()->findResourceDir("curvemooth", "curvemooth.png");
m_curveSmooth->setPixmap( TQPixmap( directory + "curvemooth.png" ) );
m_curveSmooth->setToggleButton(true);
TQToolTip::add( m_curveSmooth, i18n( "Curve smooth mode" ) );
TQWhatsThis::add( m_curveSmooth, i18n("<p>With this button, you constrains the curve type to a smooth line with tension."));
m_curveType->setExclusive(true);
m_curveType->setButton(SmoothDrawing);
m_curveType->setFrameShape(TQFrame::NoFrame);
// -------------------------------------------------------------
m_pickerColorButtonGroup = new TQHButtonGroup(m_gboxSettings->plainPage());
m_pickBlack = new TQPushButton(m_pickerColorButtonGroup);
m_pickerColorButtonGroup->insert(m_pickBlack, BlackTonal);
TDEGlobal::dirs()->addResourceType("color-picker-black", TDEGlobal::dirs()->kde_default("data") +
"digikam/data");
directory = TDEGlobal::dirs()->findResourceDir("color-picker-black", "color-picker-black.png");
m_pickBlack->setPixmap( TQPixmap( directory + "color-picker-black.png" ) );
m_pickBlack->setToggleButton(true);
TQToolTip::add( m_pickBlack, i18n( "All channels shadow tone color picker" ) );
TQWhatsThis::add( m_pickBlack, i18n("<p>With this button, you can pick the color from original image used to set <b>Shadow Tone</b> "
"smooth curves point on Red, Green, Blue, and Luminosity channels."));
m_pickGray = new TQPushButton(m_pickerColorButtonGroup);
m_pickerColorButtonGroup->insert(m_pickGray, GrayTonal);
TDEGlobal::dirs()->addResourceType("color-picker-grey", TDEGlobal::dirs()->kde_default("data") +
"digikam/data");
directory = TDEGlobal::dirs()->findResourceDir("color-picker-grey", "color-picker-grey.png");
m_pickGray->setPixmap( TQPixmap( directory + "color-picker-grey.png" ) );
m_pickGray->setToggleButton(true);
TQToolTip::add( m_pickGray, i18n( "All channels middle tone color picker" ) );
TQWhatsThis::add( m_pickGray, i18n("<p>With this button, you can pick the color from original image used to set <b>Middle Tone</b> "
"smooth curves point on Red, Green, Blue, and Luminosity channels."));
m_pickWhite = new TQPushButton(m_pickerColorButtonGroup);
m_pickerColorButtonGroup->insert(m_pickWhite, WhiteTonal);
TDEGlobal::dirs()->addResourceType("color-picker-white", TDEGlobal::dirs()->kde_default("data") +
"digikam/data");
directory = TDEGlobal::dirs()->findResourceDir("color-picker-white", "color-picker-white.png");
m_pickWhite->setPixmap( TQPixmap( directory + "color-picker-white.png" ) );
m_pickWhite->setToggleButton(true);
TQToolTip::add( m_pickWhite, i18n( "All channels highlight tone color picker" ) );
TQWhatsThis::add( m_pickWhite, i18n("<p>With this button, you can pick the color from original image used to set <b>Highlight Tone</b> "
"smooth curves point on Red, Green, Blue, and Luminosity channels."));
m_pickerColorButtonGroup->setExclusive(true);
m_pickerColorButtonGroup->setFrameShape(TQFrame::NoFrame);
// -------------------------------------------------------------
m_resetButton = new TQPushButton(i18n("&Reset"), m_gboxSettings->plainPage());
m_resetButton->setPixmap( SmallIcon("reload_page", 18) );
TQToolTip::add( m_resetButton, i18n( "Reset current channel curves' values." ) );
TQWhatsThis::add( m_resetButton, i18n("<p>If you press this button, all curves' values "
"from the current selected channel "
"will be reset to the default values."));
TQHBoxLayout* l3 = new TQHBoxLayout();
l3->addWidget(m_curveType);
l3->addWidget(m_pickerColorButtonGroup);
l3->addWidget(m_resetButton);
l3->addStretch(10);
grid->addMultiCellLayout(l1, 0, 0, 1, 5);
grid->addMultiCellWidget(curveBox, 1, 3, 0, 5);
grid->addMultiCellLayout(l3, 4, 4, 1, 5);
grid->setMargin(0);
grid->setSpacing(m_gboxSettings->spacingHint());
grid->setRowStretch(5, 10);
setToolSettings(m_gboxSettings);
init();
// -------------------------------------------------------------
connect(m_curvesWidget, TQT_SIGNAL(signalCurvesChanged()),
this, TQT_SLOT(slotTimer()));
connect(m_previewWidget, TQT_SIGNAL(spotPositionChangedFromOriginal(const Digikam::DColor&, const TQPoint&)),
this, TQT_SLOT(slotSpotColorChanged(const Digikam::DColor&)));
connect(m_previewWidget, TQT_SIGNAL(spotPositionChangedFromTarget(const Digikam::DColor&, const TQPoint&)),
this, TQT_SLOT(slotColorSelectedFromTarget(const Digikam::DColor&)));
connect(m_previewWidget, TQT_SIGNAL(signalResized()),
this, TQT_SLOT(slotEffect()));
// -------------------------------------------------------------
// ComboBox slots.
connect(m_channelCB, TQT_SIGNAL(activated(int)),
this, TQT_SLOT(slotChannelChanged(int)));
connect(m_scaleBG, TQT_SIGNAL(released(int)),
this, TQT_SLOT(slotScaleChanged(int)));
connect(m_curveType, TQT_SIGNAL(clicked(int)),
this, TQT_SLOT(slotCurveTypeChanged(int)));
// -------------------------------------------------------------
// Buttons slots.
connect(m_resetButton, TQT_SIGNAL(clicked()),
this, TQT_SLOT(slotResetCurrentChannel()));
connect(m_pickerColorButtonGroup, TQT_SIGNAL(released(int)),
this, TQT_SLOT(slotPickerColorButtonActived()));
}
AdjustCurvesTool::~AdjustCurvesTool()
{
if (m_destinationPreviewData)
delete [] m_destinationPreviewData;
}
void AdjustCurvesTool::slotPickerColorButtonActived()
{
// Save previous rendering mode and toggle to original image.
m_currentPreviewMode = m_previewWidget->getRenderingPreviewMode();
m_previewWidget->setRenderingPreviewMode(ImageGuideWidget::PreviewOriginalImage);
}
void AdjustCurvesTool::slotSpotColorChanged(const DColor &color)
{
DColor sc = color;
if ( m_pickBlack->isOn() )
{
// Black tonal curves point.
m_curvesWidget->curves()->setCurvePoint(ImageHistogram::ValueChannel, 1,
TQPoint(TQMAX(TQMAX(sc.red(), sc.green()), sc.blue()), 42*m_histoSegments/256));
m_curvesWidget->curves()->setCurvePoint(ImageHistogram::RedChannel, 1, TQPoint(sc.red(), 42*m_histoSegments/256));
m_curvesWidget->curves()->setCurvePoint(ImageHistogram::GreenChannel, 1, TQPoint(sc.green(), 42*m_histoSegments/256));
m_curvesWidget->curves()->setCurvePoint(ImageHistogram::BlueChannel, 1, TQPoint(sc.blue(), 42*m_histoSegments/256));
m_pickBlack->setOn(false);
}
else if ( m_pickGray->isOn() )
{
// Gray tonal curves point.
m_curvesWidget->curves()->setCurvePoint(ImageHistogram::ValueChannel, 8,
TQPoint(TQMAX(TQMAX(sc.red(), sc.green()), sc.blue()), 128*m_histoSegments/256));
m_curvesWidget->curves()->setCurvePoint(ImageHistogram::RedChannel, 8, TQPoint(sc.red(), 128*m_histoSegments/256));
m_curvesWidget->curves()->setCurvePoint(ImageHistogram::GreenChannel, 8, TQPoint(sc.green(), 128*m_histoSegments/256));
m_curvesWidget->curves()->setCurvePoint(ImageHistogram::BlueChannel, 8, TQPoint(sc.blue(), 128*m_histoSegments/256));
m_pickGray->setOn(false);
}
else if ( m_pickWhite->isOn() )
{
// White tonal curves point.
m_curvesWidget->curves()->setCurvePoint(ImageHistogram::ValueChannel, 15,
TQPoint(TQMAX(TQMAX(sc.red(), sc.green()), sc.blue()), 213*m_histoSegments/256));
m_curvesWidget->curves()->setCurvePoint(ImageHistogram::RedChannel, 15, TQPoint(sc.red(), 213*m_histoSegments/256));
m_curvesWidget->curves()->setCurvePoint(ImageHistogram::GreenChannel, 15, TQPoint(sc.green(), 213*m_histoSegments/256));
m_curvesWidget->curves()->setCurvePoint(ImageHistogram::BlueChannel, 15, TQPoint(sc.blue(), 213*m_histoSegments/256));
m_pickWhite->setOn(false);
}
else
{
m_curvesWidget->setCurveGuide(color);
return;
}
// Calculate Red, green, blue curves.
for (int i = ImageHistogram::ValueChannel ; i <= ImageHistogram::BlueChannel ; i++)
m_curvesWidget->curves()->curvesCalculateCurve(i);
m_curvesWidget->repaint(false);
// restore previous rendering mode.
m_previewWidget->setRenderingPreviewMode(m_currentPreviewMode);
slotEffect();
}
void AdjustCurvesTool::slotColorSelectedFromTarget( const DColor &color )
{
m_histogramWidget->setHistogramGuideByColor(color);
}
void AdjustCurvesTool::slotResetCurrentChannel()
{
m_curvesWidget->curves()->curvesChannelReset(m_channelCB->currentItem());
m_curvesWidget->repaint();
slotEffect();
m_histogramWidget->reset();
}
void AdjustCurvesTool::slotEffect()
{
ImageIface* iface = m_previewWidget->imageIface();
uchar *orgData = iface->getPreviewImage();
int w = iface->previewWidth();
int h = iface->previewHeight();
bool sb = iface->previewSixteenBit();
// Create the new empty destination image data space.
m_histogramWidget->stopHistogramComputation();
if (m_destinationPreviewData)
delete [] m_destinationPreviewData;
m_destinationPreviewData = new uchar[w*h*(sb ? 8 : 4)];
// Calculate the LUT to apply on the image.
m_curvesWidget->curves()->curvesLutSetup(ImageHistogram::AlphaChannel);
// Apply the lut to the image.
m_curvesWidget->curves()->curvesLutProcess(orgData, m_destinationPreviewData, w, h);
iface->putPreviewImage(m_destinationPreviewData);
m_previewWidget->updatePreview();
// Update histogram.
m_histogramWidget->updateData(m_destinationPreviewData, w, h, sb, 0, 0, 0, false);
delete [] orgData;
}
void AdjustCurvesTool::finalRendering()
{
kapp->setOverrideCursor( KCursor::waitCursor() );
ImageIface* iface = m_previewWidget->imageIface();
uchar *orgData = iface->getOriginalImage();
int w = iface->originalWidth();
int h = iface->originalHeight();
bool sb = iface->originalSixteenBit();
// Create the new empty destination image data space.
uchar* desData = new uchar[w*h*(sb ? 8 : 4)];
// Calculate the LUT to apply on the image.
m_curvesWidget->curves()->curvesLutSetup(ImageHistogram::AlphaChannel);
// Apply the lut to the image.
m_curvesWidget->curves()->curvesLutProcess(orgData, desData, w, h);
iface->putOriginalImage(i18n("Adjust Curves"), desData);
kapp->restoreOverrideCursor();
delete [] orgData;
delete [] desData;
}
void AdjustCurvesTool::slotChannelChanged(int channel)
{
switch(channel)
{
case LuminosityChannel:
m_histogramWidget->m_channelType = HistogramWidget::ValueHistogram;
m_hGradient->setColors( TQColor( "black" ), TQColor( "white" ) );
m_curvesWidget->m_channelType = CurvesWidget::ValueHistogram;
m_vGradient->setColors( TQColor( "white" ), TQColor( "black" ) );
break;
case RedChannel:
m_histogramWidget->m_channelType = HistogramWidget::RedChannelHistogram;
m_hGradient->setColors( TQColor( "black" ), TQColor( "red" ) );
m_curvesWidget->m_channelType = CurvesWidget::RedChannelHistogram;
m_vGradient->setColors( TQColor( "red" ), TQColor( "black" ) );
break;
case GreenChannel:
m_histogramWidget->m_channelType = HistogramWidget::GreenChannelHistogram;
m_hGradient->setColors( TQColor( "black" ), TQColor( "green" ) );
m_curvesWidget->m_channelType = CurvesWidget::GreenChannelHistogram;
m_vGradient->setColors( TQColor( "green" ), TQColor( "black" ) );
break;
case BlueChannel:
m_histogramWidget->m_channelType = HistogramWidget::BlueChannelHistogram;
m_hGradient->setColors( TQColor( "black" ), TQColor( "blue" ) );
m_curvesWidget->m_channelType = CurvesWidget::BlueChannelHistogram;
m_vGradient->setColors( TQColor( "blue" ), TQColor( "black" ) );
break;
case AlphaChannel:
m_histogramWidget->m_channelType = HistogramWidget::AlphaChannelHistogram;
m_hGradient->setColors( TQColor( "black" ), TQColor( "white" ) );
m_curvesWidget->m_channelType = CurvesWidget::AlphaChannelHistogram;
m_vGradient->setColors( TQColor( "white" ), TQColor( "black" ) );
break;
}
m_curveType->setButton(m_curvesWidget->curves()->getCurveType(channel));
m_curvesWidget->repaint(false);
m_histogramWidget->repaint(false);
}
void AdjustCurvesTool::slotScaleChanged(int scale)
{
m_curvesWidget->m_scaleType = scale;
m_histogramWidget->m_scaleType = scale;
m_histogramWidget->repaint(false);
m_curvesWidget->repaint(false);
}
void AdjustCurvesTool::slotCurveTypeChanged(int type)
{
switch(type)
{
case SmoothDrawing:
{
m_curvesWidget->curves()->setCurveType(m_curvesWidget->m_channelType, ImageCurves::CURVE_SMOOTH);
m_pickerColorButtonGroup->setEnabled(true);
break;
}
case FreeDrawing:
{
m_curvesWidget->curves()->setCurveType(m_curvesWidget->m_channelType, ImageCurves::CURVE_FREE);
m_pickerColorButtonGroup->setEnabled(false);
break;
}
}
m_curvesWidget->curveTypeChanged();
}
void AdjustCurvesTool::readSettings()
{
TDEConfig* config = kapp->config();
config->setGroup("adjustcurves Tool");
m_channelCB->setCurrentItem(config->readNumEntry("Histogram Channel", 0)); // Luminosity.
m_scaleBG->setButton(config->readNumEntry("Histogram Scale", HistogramWidget::LogScaleHistogram));
m_curvesWidget->reset();
for (int i = 0 ; i < 5 ; i++)
{
m_curvesWidget->curves()->curvesChannelReset(i);
m_curvesWidget->curves()->setCurveType(i, (ImageCurves::CurveType)config->readNumEntry(TQString("CurveTypeChannel%1").arg(i),
ImageCurves::CURVE_SMOOTH));
for (int j = 0 ; j < 17 ; j++)
{
TQPoint disable(-1, -1);
TQPoint p = config->readPointEntry(TQString("CurveAjustmentChannel%1Point%2").arg(i).arg(j), &disable);
if (m_originalImage->sixteenBit() && p.x() != -1)
{
p.setX(p.x()*255);
p.setY(p.y()*255);
}
m_curvesWidget->curves()->setCurvePoint(i, j, p);
}
m_curvesWidget->curves()->curvesCalculateCurve(i);
}
m_histogramWidget->reset();
slotChannelChanged(m_channelCB->currentItem());
slotScaleChanged(m_scaleBG->selectedId());
slotEffect();
}
void AdjustCurvesTool::writeSettings()
{
TDEConfig* config = kapp->config();
config->setGroup("adjustcurves Tool");
config->writeEntry("Histogram Channel", m_channelCB->currentItem());
config->writeEntry("Histogram Scale", m_scaleBG->selectedId());
for (int i = 0 ; i < 5 ; i++)
{
config->writeEntry(TQString("CurveTypeChannel%1").arg(i), m_curvesWidget->curves()->getCurveType(i));
for (int j = 0 ; j < 17 ; j++)
{
TQPoint p = m_curvesWidget->curves()->getCurvePoint(i, j);
if (m_originalImage->sixteenBit() && p.x() != -1)
{
p.setX(p.x()/255);
p.setY(p.y()/255);
}
config->writeEntry(TQString("CurveAjustmentChannel%1Point%2").arg(i).arg(j), p);
}
}
m_previewWidget->writeSettings();
config->sync();
}
void AdjustCurvesTool::slotResetSettings()
{
for (int channel = 0 ; channel < 5 ; channel++)
m_curvesWidget->curves()->curvesChannelReset(channel);
m_curvesWidget->reset();
slotEffect();
m_histogramWidget->reset();
}
void AdjustCurvesTool::slotLoadSettings()
{
KURL loadCurvesFile;
loadCurvesFile = KFileDialog::getOpenURL(TDEGlobalSettings::documentPath(),
TQString( "*" ), kapp->activeWindow(),
TQString( i18n("Select Gimp Curves File to Load")) );
if( loadCurvesFile.isEmpty() )
return;
if ( m_curvesWidget->curves()->loadCurvesFromGimpCurvesFile( loadCurvesFile ) == false )
{
KMessageBox::error(kapp->activeWindow(), i18n("Cannot load from the Gimp curves text file."));
return;
}
// Refresh the current curves config.
slotChannelChanged(m_channelCB->currentItem());
slotEffect();
}
void AdjustCurvesTool::slotSaveAsSettings()
{
KURL saveCurvesFile;
saveCurvesFile = KFileDialog::getSaveURL(TDEGlobalSettings::documentPath(),
TQString( "*" ), kapp->activeWindow(),
TQString( i18n("Gimp Curves File to Save")) );
if( saveCurvesFile.isEmpty() )
return;
if ( m_curvesWidget->curves()->saveCurvesToGimpCurvesFile( saveCurvesFile ) == false )
{
KMessageBox::error(kapp->activeWindow(), i18n("Cannot save to the Gimp curves text file."));
return;
}
// Refresh the current curves config.
slotChannelChanged(m_channelCB->currentItem());
}
} // NameSpace DigikamAdjustCurvesImagesPlugin
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