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Diffstat (limited to 'src/imageplugins/freerotation/imageeffect_freerotation.cpp')
| -rw-r--r-- | src/imageplugins/freerotation/imageeffect_freerotation.cpp | 308 |
1 files changed, 308 insertions, 0 deletions
diff --git a/src/imageplugins/freerotation/imageeffect_freerotation.cpp b/src/imageplugins/freerotation/imageeffect_freerotation.cpp new file mode 100644 index 00000000..bce50f07 --- /dev/null +++ b/src/imageplugins/freerotation/imageeffect_freerotation.cpp @@ -0,0 +1,308 @@ +/* ============================================================ + * + * 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 <tqlabel.h> +#include <tqcheckbox.h> +#include <tqwhatsthis.h> +#include <tqlayout.h> +#include <tqimage.h> +#include <tqcombobox.h> + +// KDE includes. + +#include <tdelocale.h> +#include <tdeaboutdata.h> +#include <kiconloader.h> +#include <tdeapplication.h> +#include <kstandarddirs.h> +#include <knuminput.h> +#include <kcursor.h> +#include <kseparator.h> +#include <tdeconfig.h> + +// Local includes. + +#include "version.h" +#include "ddebug.h" +#include "dimg.h" +#include "imageiface.h" +#include "imagewidget.h" +#include "freerotation.h" +#include "imageeffect_freerotation.h" +#include "imageeffect_freerotation.moc" + +namespace DigikamFreeRotationImagesPlugin +{ + +ImageEffect_FreeRotation::ImageEffect_FreeRotation(TQWidget* parent) + : Digikam::ImageGuideDlg(parent, i18n("Free Rotation"), "freerotation", + false, true, true, Digikam::ImageGuideWidget::HVGuideMode) +{ + // No need Abort button action. + showButton(User1, false); + + TQString whatsThis; + + TDEAboutData* about = new TDEAboutData("digikam", + I18N_NOOP("Free Rotation"), + digikam_version, + I18N_NOOP("A digiKam image plugin to process free image " + "rotation."), + TDEAboutData::License_GPL, + "(c) 2004-2008, Gilles Caulier", + 0, + "http://www.digikam.org"); + + about->addAuthor("Gilles Caulier", I18N_NOOP("Author and maintainer"), + "caulier dot gilles at gmail dot com"); + + about->addAuthor("Pieter Z. Voloshyn", I18N_NOOP("Free Rotation algorithm"), + "pieter dot voloshyn at gmail dot com"); + + setAboutData(about); + + TQWhatsThis::add( m_imagePreviewWidget, i18n("<p>This is the free image 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.")); + + // ------------------------------------------------------------- + + TQString temp; + Digikam::ImageIface iface(0, 0); + + TQWidget *gboxSettings = new TQWidget(plainPage()); + TQGridLayout* gridSettings = new TQGridLayout( gboxSettings, 9, 2, spacingHint()); + + TQLabel *label1 = new TQLabel(i18n("New width:"), gboxSettings); + m_newWidthLabel = new TQLabel(temp.setNum( iface.originalWidth()) + i18n(" px"), gboxSettings); + m_newWidthLabel->setAlignment( AlignBottom | AlignRight ); + + TQLabel *label2 = new TQLabel(i18n("New height:"), gboxSettings); + m_newHeightLabel = new TQLabel(temp.setNum( iface.originalHeight()) + i18n(" px"), gboxSettings); + m_newHeightLabel->setAlignment( AlignBottom | AlignRight ); + + gridSettings->addMultiCellWidget(label1, 0, 0, 0, 0); + gridSettings->addMultiCellWidget(m_newWidthLabel, 0, 0, 1, 2); + gridSettings->addMultiCellWidget(label2, 1, 1, 0, 0); + gridSettings->addMultiCellWidget(m_newHeightLabel, 1, 1, 1, 2); + + KSeparator *line = new KSeparator(Horizontal, gboxSettings); + gridSettings->addMultiCellWidget(line, 2, 2, 0, 2); + + TQLabel *label3 = new TQLabel(i18n("Main angle:"), gboxSettings); + m_angleInput = new KIntNumInput(gboxSettings); + m_angleInput->setRange(-180, 180, 1, true); + m_angleInput->setValue(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.")); + + gridSettings->addMultiCellWidget(label3, 3, 3, 0, 2); + gridSettings->addMultiCellWidget(m_angleInput, 4, 4, 0, 2); + + TQLabel *label4 = new TQLabel(i18n("Fine angle:"), gboxSettings); + m_fineAngleInput = new KDoubleNumInput(gboxSettings); + m_fineAngleInput->setRange(-5.0, 5.0, 0.01, true); + m_fineAngleInput->setValue(0); + TQWhatsThis::add( m_fineAngleInput, i18n("<p>This value in degrees will be added to main angle value " + "to set fine target angle.")); + + gridSettings->addMultiCellWidget(label4, 5, 5, 0, 2); + gridSettings->addMultiCellWidget(m_fineAngleInput, 6, 6, 0, 2); + + m_antialiasInput = new TQCheckBox(i18n("Anti-Aliasing"), gboxSettings); + 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.")); + gridSettings->addMultiCellWidget(m_antialiasInput, 7, 7, 0, 2); + + TQLabel *label5 = new TQLabel(i18n("Auto-crop:"), gboxSettings); + m_autoCropCB = new TQComboBox(false, gboxSettings); + m_autoCropCB->insertItem( i18n("None") ); + m_autoCropCB->insertItem( i18n("Widest Area") ); + m_autoCropCB->insertItem( i18n("Largest Area") ); + TQWhatsThis::add( m_autoCropCB, i18n("<p>Select the method to process image auto-cropping " + "to remove black frames around a rotated image.")); + gridSettings->addMultiCellWidget(label5, 8, 8, 0, 0); + gridSettings->addMultiCellWidget(m_autoCropCB, 8, 8, 1, 2); + + setUserAreaWidget(gboxSettings); + + // ------------------------------------------------------------- + + connect(m_angleInput, TQ_SIGNAL(valueChanged (int)), + this, TQ_SLOT(slotTimer())); + + connect(m_fineAngleInput, TQ_SIGNAL(valueChanged (double)), + this, TQ_SLOT(slotTimer())); + + connect(m_antialiasInput, TQ_SIGNAL(toggled (bool)), + this, TQ_SLOT(slotEffect())); + + connect(m_autoCropCB, TQ_SIGNAL(activated(int)), + this, TQ_SLOT(slotEffect())); +} + +ImageEffect_FreeRotation::~ImageEffect_FreeRotation() +{ +} + +void ImageEffect_FreeRotation::readUserSettings(void) +{ + TDEConfig *config = kapp->config(); + config->setGroup("freerotation Tool Dialog"); + m_angleInput->setValue(config->readNumEntry("Main Angle", 0)); + m_fineAngleInput->setValue(config->readDoubleNumEntry("Fine Angle", 0.0)); + m_autoCropCB->setCurrentItem(config->readNumEntry("Auto Crop Type", FreeRotation::NoAutoCrop)); + m_antialiasInput->setChecked(config->readBoolEntry("Anti Aliasing", true)); + slotEffect(); +} + +void ImageEffect_FreeRotation::writeUserSettings(void) +{ + TDEConfig *config = kapp->config(); + config->setGroup("freerotation Tool Dialog"); + 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->sync(); +} + +void ImageEffect_FreeRotation::resetValues() +{ + m_angleInput->blockSignals(true); + m_antialiasInput->blockSignals(true); + m_autoCropCB->blockSignals(true); + m_angleInput->setValue(0); + m_fineAngleInput->setValue(0.0); + m_antialiasInput->setChecked(true); + m_autoCropCB->setCurrentItem(FreeRotation::NoAutoCrop); + m_angleInput->blockSignals(false); + m_antialiasInput->blockSignals(false); + m_autoCropCB->blockSignals(false); +} + +void ImageEffect_FreeRotation::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 = paletteBackgroundColor().rgb(); + + Digikam::ImageIface* iface = m_imagePreviewWidget->imageIface(); + int orgW = iface->originalWidth(); + int orgH = iface->originalHeight(); + + uchar *data = iface->getPreviewImage(); + Digikam::DImg image(iface->previewWidth(), iface->previewHeight(), iface->previewSixteenBit(), + iface->previewHasAlpha(), data); + delete [] data; + + m_threadedFilter = dynamic_cast<Digikam::DImgThreadedFilter *>( + new FreeRotation(&image, this, angle, antialiasing, autocrop, + background, orgW, orgH)); +} + +void ImageEffect_FreeRotation::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; + + Digikam::ImageIface iface(0, 0); + int orgW = iface.originalWidth(); + int orgH = iface.originalHeight(); + + uchar *data = iface.getOriginalImage(); + Digikam::DImg orgImage(orgW, orgH, iface.originalSixteenBit(), + iface.originalHasAlpha(), data); + delete [] data; + + m_threadedFilter = dynamic_cast<Digikam::DImgThreadedFilter *>( + new FreeRotation(&orgImage, this, angle, antialiasing, autocrop, + background, orgW, orgH)); +} + +void ImageEffect_FreeRotation::putPreviewData(void) +{ + Digikam::ImageIface* iface = m_imagePreviewWidget->imageIface(); + int w = iface->previewWidth(); + int h = iface->previewHeight(); + + Digikam::DImg imTemp = m_threadedFilter->getTargetImage().smoothScale(w, h, TQSize::ScaleMin); + Digikam::DImg imDest( w, h, m_threadedFilter->getTargetImage().sixteenBit(), + m_threadedFilter->getTargetImage().hasAlpha() ); + + imDest.fill( Digikam::DColor(paletteBackgroundColor().rgb(), + m_threadedFilter->getTargetImage().sixteenBit()) ); + imDest.bitBltImage(&imTemp, (w-imTemp.width())/2, (h-imTemp.height())/2); + + iface->putPreviewImage((imDest.smoothScale(iface->previewWidth(), + iface->previewHeight())).bits()); + + m_imagePreviewWidget->updatePreview(); + TQSize newSize = dynamic_cast<FreeRotation *>(m_threadedFilter)->getNewSize(); + TQString temp; + m_newWidthLabel->setText(temp.setNum( newSize.width()) + i18n(" px") ); + m_newHeightLabel->setText(temp.setNum( newSize.height()) + i18n(" px") ); +} + +void ImageEffect_FreeRotation::putFinalData(void) +{ + Digikam::ImageIface iface(0, 0); + Digikam::DImg targetImage = m_threadedFilter->getTargetImage(); + iface.putOriginalImage(i18n("Free Rotation"), + targetImage.bits(), + targetImage.width(), targetImage.height()); +} + +void ImageEffect_FreeRotation::renderingFinished() +{ + m_angleInput->setEnabled(true); + m_fineAngleInput->setEnabled(true); + m_antialiasInput->setEnabled(true); + m_autoCropCB->setEnabled(true); + kapp->restoreOverrideCursor(); +} + +} // NameSpace DigikamFreeRotationImagesPlugin + |