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digikam/digikam/imageplugins/freerotation/freerotationtool.cpp

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/* ============================================================
*
* This file is a part of digiKam project
* http://www.digikam.org
*
* Date : 2004-11-28
* Description : a digiKam image editor plugin to process image
* free rotation.
*
* 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.
*
* ============================================================ */
// TQt includes.
#include <tqcheckbox.h>
#include <tqimage.h>
#include <tqlabel.h>
#include <tqlayout.h>
#include <tqwhatsthis.h>
// KDE includes.
#include <kaboutdata.h>
#include <kapplication.h>
#include <tdeconfig.h>
#include <kcursor.h>
#include <kiconloader.h>
#include <klocale.h>
#include <kseparator.h>
#include <kstandarddirs.h>
// LibKDcraw includes.
#include <libkdcraw/rnuminput.h>
#include <libkdcraw/rcombobox.h>
// Local includes.
#include "daboutdata.h"
#include "ddebug.h"
#include "dimg.h"
#include "imageiface.h"
#include "imagewidget.h"
#include "editortoolsettings.h"
#include "freerotation.h"
#include "freerotationtool.h"
#include "freerotationtool.moc"
using namespace KDcrawIface;
using namespace Digikam;
namespace DigikamFreeRotationImagesPlugin
{
FreeRotationTool::FreeRotationTool(TQObject* parent)
: EditorToolThreaded(parent)
{
setName("freerotation");
setToolName(i18n("Free Rotation"));
setToolIcon(SmallIcon("freerotation"));
m_previewWidget = new ImageWidget("freerotation Tool", 0,
i18n("<p>This is the free rotation operation preview. "
"If you move the mouse cursor on this preview, "
"a vertical and horizontal dashed line will be drawn "
"to guide you in adjusting the free rotation correction. "
"Release the left mouse button to freeze the dashed "
"line's position."),
false, ImageGuideWidget::HVGuideMode);
setToolView(m_previewWidget);
// -------------------------------------------------------------
TQString temp;
Digikam::ImageIface iface(0, 0);
m_gboxSettings = new EditorToolSettings(EditorToolSettings::Default|
EditorToolSettings::Ok|
EditorToolSettings::Cancel,
EditorToolSettings::ColorGuide);
TQGridLayout* grid = new TQGridLayout(m_gboxSettings->plainPage(), 9, 2);
TQLabel *label1 = new TQLabel(i18n("New width:"), m_gboxSettings->plainPage());
m_newWidthLabel = new TQLabel(temp.setNum( iface.originalWidth()) + i18n(" px"), m_gboxSettings->plainPage());
m_newWidthLabel->setAlignment( AlignBottom | AlignRight );
TQLabel *label2 = new TQLabel(i18n("New height:"), m_gboxSettings->plainPage());
m_newHeightLabel = new TQLabel(temp.setNum( iface.originalHeight()) + i18n(" px"), m_gboxSettings->plainPage());
m_newHeightLabel->setAlignment( AlignBottom | AlignRight );
KSeparator *line = new KSeparator(Horizontal, m_gboxSettings->plainPage());
TQLabel *label3 = new TQLabel(i18n("Main angle:"), m_gboxSettings->plainPage());
m_angleInput = new RIntNumInput(m_gboxSettings->plainPage());
m_angleInput->setRange(-180, 180, 1);
m_angleInput->setDefaultValue(0);
TQWhatsThis::add( m_angleInput, i18n("<p>An angle in degrees by which to rotate the image. "
"A positive angle rotates the image clockwise; "
"a negative angle rotates it counter-clockwise."));
TQLabel *label4 = new TQLabel(i18n("Fine angle:"), m_gboxSettings->plainPage());
m_fineAngleInput = new RDoubleNumInput(m_gboxSettings->plainPage());
m_fineAngleInput->setRange(-5.0, 5.0, 0.01);
m_fineAngleInput->setDefaultValue(0);
TQWhatsThis::add( m_fineAngleInput, i18n("<p>This value in degrees will be added to main angle value "
"to set fine target angle."));
m_antialiasInput = new TQCheckBox(i18n("Anti-Aliasing"), m_gboxSettings->plainPage());
TQWhatsThis::add( m_antialiasInput, i18n("<p>Enable this option to apply the anti-aliasing filter "
"to the rotated image. "
"In order to smooth the target image, it will be blurred a little."));
TQLabel *label5 = new TQLabel(i18n("Auto-crop:"), m_gboxSettings->plainPage());
m_autoCropCB = new RComboBox(m_gboxSettings->plainPage());
m_autoCropCB->insertItem( i18n("None") );
m_autoCropCB->insertItem( i18n("Widest Area") );
m_autoCropCB->insertItem( i18n("Largest Area") );
m_autoCropCB->setDefaultItem(FreeRotation::NoAutoCrop);
TQWhatsThis::add( m_autoCropCB, i18n("<p>Select the method to process image auto-cropping "
"to remove black frames around a rotated image."));
grid->addMultiCellWidget(label1, 0, 0, 0, 0);
grid->addMultiCellWidget(m_newWidthLabel, 0, 0, 1, 2);
grid->addMultiCellWidget(label2, 1, 1, 0, 0);
grid->addMultiCellWidget(m_newHeightLabel, 1, 1, 1, 2);
grid->addMultiCellWidget(line, 2, 2, 0, 2);
grid->addMultiCellWidget(label3, 3, 3, 0, 2);
grid->addMultiCellWidget(m_angleInput, 4, 4, 0, 2);
grid->addMultiCellWidget(label4, 5, 5, 0, 2);
grid->addMultiCellWidget(m_fineAngleInput, 6, 6, 0, 2);
grid->addMultiCellWidget(m_antialiasInput, 7, 7, 0, 2);
grid->addMultiCellWidget(label5, 8, 8, 0, 0);
grid->addMultiCellWidget(m_autoCropCB, 8, 8, 1, 2);
grid->setRowStretch(9, 10);
grid->setMargin(m_gboxSettings->spacingHint());
grid->setSpacing(m_gboxSettings->spacingHint());
setToolSettings(m_gboxSettings);
init();
// -------------------------------------------------------------
connect(m_angleInput, TQT_SIGNAL(valueChanged(int)),
this, TQT_SLOT(slotTimer()));
connect(m_fineAngleInput, TQT_SIGNAL(valueChanged(double)),
this, TQT_SLOT(slotTimer()));
connect(m_antialiasInput, TQT_SIGNAL(toggled(bool)),
this, TQT_SLOT(slotEffect()));
connect(m_autoCropCB, TQT_SIGNAL(activated(int)),
this, TQT_SLOT(slotEffect()));
connect(m_gboxSettings, TQT_SIGNAL(signalColorGuideChanged()),
this, TQT_SLOT(slotColorGuideChanged()));
}
FreeRotationTool::~FreeRotationTool()
{
}
void FreeRotationTool::slotColorGuideChanged()
{
m_previewWidget->slotChangeGuideColor(m_gboxSettings->guideColor());
m_previewWidget->slotChangeGuideSize(m_gboxSettings->guideSize());
}
void FreeRotationTool::readSettings()
{
TDEConfig *config = kapp->config();
config->setGroup("freerotation Tool");
m_angleInput->setValue(config->readNumEntry("Main Angle", m_angleInput->defaultValue()));
m_fineAngleInput->setValue(config->readDoubleNumEntry("Fine Angle", m_fineAngleInput->defaultValue()));
m_autoCropCB->setCurrentItem(config->readNumEntry("Auto Crop Type", m_autoCropCB->defaultItem()));
m_antialiasInput->setChecked(config->readBoolEntry("Anti Aliasing", true));
m_gboxSettings->setGuideColor(config->readColorEntry("Guide Color", &TQt::red));
m_gboxSettings->setGuideSize(config->readNumEntry("Guide Width", 1));
slotColorGuideChanged();
slotEffect();
}
void FreeRotationTool::writeSettings()
{
TDEConfig *config = kapp->config();
config->setGroup("freerotation Tool");
config->writeEntry("Main Angle", m_angleInput->value());
config->writeEntry("Fine Angle", m_fineAngleInput->value());
config->writeEntry("Auto Crop Type", m_autoCropCB->currentItem());
config->writeEntry("Anti Aliasing", m_antialiasInput->isChecked());
config->writeEntry("Guide Color", m_gboxSettings->guideColor());
config->writeEntry("Guide Width", m_gboxSettings->guideSize());
m_previewWidget->writeSettings();
config->sync();
}
void FreeRotationTool::slotResetSettings()
{
m_angleInput->blockSignals(true);
m_antialiasInput->blockSignals(true);
m_autoCropCB->blockSignals(true);
m_angleInput->slotReset();
m_fineAngleInput->slotReset();
m_antialiasInput->setChecked(true);
m_autoCropCB->slotReset();
m_angleInput->blockSignals(false);
m_antialiasInput->blockSignals(false);
m_autoCropCB->blockSignals(false);
}
void FreeRotationTool::prepareEffect()
{
kapp->setOverrideCursor( KCursor::waitCursor() );
m_angleInput->setEnabled(false);
m_fineAngleInput->setEnabled(false);
m_antialiasInput->setEnabled(false);
m_autoCropCB->setEnabled(false);
double angle = m_angleInput->value() + m_fineAngleInput->value();
bool antialiasing = m_antialiasInput->isChecked();
int autocrop = m_autoCropCB->currentItem();
TQColor background = toolView()->paletteBackgroundColor().rgb();
ImageIface* iface = m_previewWidget->imageIface();
int orgW = iface->originalWidth();
int orgH = iface->originalHeight();
uchar *data = iface->getPreviewImage();
DImg image(iface->previewWidth(), iface->previewHeight(), iface->previewSixteenBit(),
iface->previewHasAlpha(), data);
delete [] data;
setFilter(dynamic_cast<DImgThreadedFilter*>(new FreeRotation(&image, this, angle, antialiasing,
autocrop, background, orgW, orgH)));
}
void FreeRotationTool::prepareFinal()
{
m_angleInput->setEnabled(false);
m_fineAngleInput->setEnabled(false);
m_antialiasInput->setEnabled(false);
m_autoCropCB->setEnabled(false);
double angle = m_angleInput->value() + m_fineAngleInput->value();
bool antialiasing = m_antialiasInput->isChecked();
int autocrop = m_autoCropCB->currentItem();
TQColor background = TQt::black;
ImageIface iface(0, 0);
int orgW = iface.originalWidth();
int orgH = iface.originalHeight();
uchar *data = iface.getOriginalImage();
DImg orgImage(orgW, orgH, iface.originalSixteenBit(), iface.originalHasAlpha(), data);
delete [] data;
setFilter(dynamic_cast<DImgThreadedFilter *>(new FreeRotation(&orgImage, this, angle, antialiasing,
autocrop, background, orgW, orgH)));
}
void FreeRotationTool::putPreviewData()
{
ImageIface* iface = m_previewWidget->imageIface();
int w = iface->previewWidth();
int h = iface->previewHeight();
DImg imTemp = filter()->getTargetImage().smoothScale(w, h, TQSize::ScaleMin);
DImg imDest( w, h, filter()->getTargetImage().sixteenBit(),
filter()->getTargetImage().hasAlpha() );
imDest.fill(DColor(toolView()->paletteBackgroundColor().rgb(),
filter()->getTargetImage().sixteenBit()) );
imDest.bitBltImage(&imTemp, (w-imTemp.width())/2, (h-imTemp.height())/2);
iface->putPreviewImage((imDest.smoothScale(iface->previewWidth(),
iface->previewHeight())).bits());
m_previewWidget->updatePreview();
TQSize newSize = dynamic_cast<FreeRotation*>(filter())->getNewSize();
TQString temp;
m_newWidthLabel->setText(temp.setNum( newSize.width()) + i18n(" px") );
m_newHeightLabel->setText(temp.setNum( newSize.height()) + i18n(" px") );
}
void FreeRotationTool::putFinalData()
{
ImageIface iface(0, 0);
DImg targetImage = filter()->getTargetImage();
iface.putOriginalImage(i18n("Free Rotation"),
targetImage.bits(),
targetImage.width(), targetImage.height());
}
void FreeRotationTool::renderingFinished()
{
m_angleInput->setEnabled(true);
m_fineAngleInput->setEnabled(true);
m_antialiasInput->setEnabled(true);
m_autoCropCB->setEnabled(true);
kapp->restoreOverrideCursor();
}
} // NameSpace DigikamFreeRotationImagesPlugin