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309 lines
12 KiB
309 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 : 2004-11-28
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* Description : a digiKam image editor plugin to process image
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* free rotation.
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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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*
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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 <tqlabel.h>
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#include <tqcheckbox.h>
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#include <tqwhatsthis.h>
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#include <tqlayout.h>
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#include <tqimage.h>
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#include <tqcombobox.h>
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// KDE includes.
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#include <klocale.h>
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#include <kaboutdata.h>
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#include <kiconloader.h>
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#include <kapplication.h>
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#include <kstandarddirs.h>
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#include <knuminput.h>
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#include <kcursor.h>
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#include <kseparator.h>
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#include <tdeconfig.h>
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// Local includes.
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#include "version.h"
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#include "ddebug.h"
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#include "dimg.h"
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#include "imageiface.h"
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#include "imagewidget.h"
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#include "freerotation.h"
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#include "imageeffect_freerotation.h"
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#include "imageeffect_freerotation.moc"
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namespace DigikamFreeRotationImagesPlugin
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{
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ImageEffect_FreeRotation::ImageEffect_FreeRotation(TQWidget* parent)
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: Digikam::ImageGuideDlg(parent, i18n("Free Rotation"), "freerotation",
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false, true, true, Digikam::ImageGuideWidget::HVGuideMode)
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{
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// No need Abort button action.
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showButton(User1, false);
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TQString whatsThis;
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TDEAboutData* about = new TDEAboutData("digikam",
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I18N_NOOP("Free Rotation"),
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digikam_version,
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I18N_NOOP("A digiKam image plugin to process free image "
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"rotation."),
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TDEAboutData::License_GPL,
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"(c) 2004-2008, Gilles Caulier",
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0,
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"http://www.digikam.org");
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about->addAuthor("Gilles Caulier", I18N_NOOP("Author and maintainer"),
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"caulier dot gilles at gmail dot com");
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about->addAuthor("Pieter Z. Voloshyn", I18N_NOOP("Free Rotation algorithm"),
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"pieter dot voloshyn at gmail dot com");
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setAboutData(about);
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TQWhatsThis::add( m_imagePreviewWidget, i18n("<p>This is the free image operation preview. "
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"If you move the mouse cursor on this preview, "
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"a vertical and horizontal dashed line will be drawn "
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"to guide you in adjusting the free rotation correction. "
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"Release the left mouse button to freeze the dashed "
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"line's position."));
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// -------------------------------------------------------------
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TQString temp;
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Digikam::ImageIface iface(0, 0);
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TQWidget *gboxSettings = new TQWidget(plainPage());
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TQGridLayout* gridSettings = new TQGridLayout( gboxSettings, 9, 2, spacingHint());
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TQLabel *label1 = new TQLabel(i18n("New width:"), gboxSettings);
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m_newWidthLabel = new TQLabel(temp.setNum( iface.originalWidth()) + i18n(" px"), gboxSettings);
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m_newWidthLabel->setAlignment( AlignBottom | AlignRight );
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TQLabel *label2 = new TQLabel(i18n("New height:"), gboxSettings);
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m_newHeightLabel = new TQLabel(temp.setNum( iface.originalHeight()) + i18n(" px"), gboxSettings);
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m_newHeightLabel->setAlignment( AlignBottom | AlignRight );
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gridSettings->addMultiCellWidget(label1, 0, 0, 0, 0);
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gridSettings->addMultiCellWidget(m_newWidthLabel, 0, 0, 1, 2);
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gridSettings->addMultiCellWidget(label2, 1, 1, 0, 0);
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gridSettings->addMultiCellWidget(m_newHeightLabel, 1, 1, 1, 2);
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KSeparator *line = new KSeparator(Horizontal, gboxSettings);
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gridSettings->addMultiCellWidget(line, 2, 2, 0, 2);
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TQLabel *label3 = new TQLabel(i18n("Main angle:"), gboxSettings);
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m_angleInput = new KIntNumInput(gboxSettings);
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m_angleInput->setRange(-180, 180, 1, true);
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m_angleInput->setValue(0);
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TQWhatsThis::add( m_angleInput, i18n("<p>An angle in degrees by which to rotate the image. "
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"A positive angle rotates the image clockwise; "
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"a negative angle rotates it counter-clockwise."));
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gridSettings->addMultiCellWidget(label3, 3, 3, 0, 2);
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gridSettings->addMultiCellWidget(m_angleInput, 4, 4, 0, 2);
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TQLabel *label4 = new TQLabel(i18n("Fine angle:"), gboxSettings);
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m_fineAngleInput = new KDoubleNumInput(gboxSettings);
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m_fineAngleInput->setRange(-5.0, 5.0, 0.01, true);
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m_fineAngleInput->setValue(0);
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TQWhatsThis::add( m_fineAngleInput, i18n("<p>This value in degrees will be added to main angle value "
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"to set fine target angle."));
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gridSettings->addMultiCellWidget(label4, 5, 5, 0, 2);
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gridSettings->addMultiCellWidget(m_fineAngleInput, 6, 6, 0, 2);
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m_antialiasInput = new TQCheckBox(i18n("Anti-Aliasing"), gboxSettings);
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TQWhatsThis::add( m_antialiasInput, i18n("<p>Enable this option to apply the anti-aliasing filter "
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"to the rotated image. "
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"In order to smooth the target image, it will be blurred a little."));
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gridSettings->addMultiCellWidget(m_antialiasInput, 7, 7, 0, 2);
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TQLabel *label5 = new TQLabel(i18n("Auto-crop:"), gboxSettings);
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m_autoCropCB = new TQComboBox(false, gboxSettings);
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m_autoCropCB->insertItem( i18n("None") );
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m_autoCropCB->insertItem( i18n("Widest Area") );
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m_autoCropCB->insertItem( i18n("Largest Area") );
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TQWhatsThis::add( m_autoCropCB, i18n("<p>Select the method to process image auto-cropping "
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"to remove black frames around a rotated image."));
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gridSettings->addMultiCellWidget(label5, 8, 8, 0, 0);
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gridSettings->addMultiCellWidget(m_autoCropCB, 8, 8, 1, 2);
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setUserAreaWidget(gboxSettings);
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// -------------------------------------------------------------
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connect(m_angleInput, TQT_SIGNAL(valueChanged (int)),
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this, TQT_SLOT(slotTimer()));
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connect(m_fineAngleInput, TQT_SIGNAL(valueChanged (double)),
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this, TQT_SLOT(slotTimer()));
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connect(m_antialiasInput, TQT_SIGNAL(toggled (bool)),
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this, TQT_SLOT(slotEffect()));
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connect(m_autoCropCB, TQT_SIGNAL(activated(int)),
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this, TQT_SLOT(slotEffect()));
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}
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ImageEffect_FreeRotation::~ImageEffect_FreeRotation()
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{
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}
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void ImageEffect_FreeRotation::readUserSettings(void)
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{
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TDEConfig *config = kapp->config();
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config->setGroup("freerotation Tool Dialog");
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m_angleInput->setValue(config->readNumEntry("Main Angle", 0));
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m_fineAngleInput->setValue(config->readDoubleNumEntry("Fine Angle", 0.0));
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m_autoCropCB->setCurrentItem(config->readNumEntry("Auto Crop Type", FreeRotation::NoAutoCrop));
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m_antialiasInput->setChecked(config->readBoolEntry("Anti Aliasing", true));
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slotEffect();
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}
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void ImageEffect_FreeRotation::writeUserSettings(void)
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{
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TDEConfig *config = kapp->config();
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config->setGroup("freerotation Tool Dialog");
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config->writeEntry("Main Angle", m_angleInput->value());
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config->writeEntry("Fine Angle", m_fineAngleInput->value());
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config->writeEntry( "Auto Crop Type", m_autoCropCB->currentItem() );
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config->writeEntry( "Anti Aliasing", m_antialiasInput->isChecked() );
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config->sync();
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}
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void ImageEffect_FreeRotation::resetValues()
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{
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m_angleInput->blockSignals(true);
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m_antialiasInput->blockSignals(true);
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m_autoCropCB->blockSignals(true);
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m_angleInput->setValue(0);
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m_fineAngleInput->setValue(0.0);
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m_antialiasInput->setChecked(true);
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m_autoCropCB->setCurrentItem(FreeRotation::NoAutoCrop);
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m_angleInput->blockSignals(false);
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m_antialiasInput->blockSignals(false);
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m_autoCropCB->blockSignals(false);
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}
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void ImageEffect_FreeRotation::prepareEffect()
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{
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kapp->setOverrideCursor( KCursor::waitCursor() );
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m_angleInput->setEnabled(false);
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m_fineAngleInput->setEnabled(false);
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m_antialiasInput->setEnabled(false);
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m_autoCropCB->setEnabled(false);
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double angle = m_angleInput->value() + m_fineAngleInput->value();
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bool antialiasing = m_antialiasInput->isChecked();
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int autocrop = m_autoCropCB->currentItem();
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TQColor background = paletteBackgroundColor().rgb();
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Digikam::ImageIface* iface = m_imagePreviewWidget->imageIface();
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int orgW = iface->originalWidth();
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int orgH = iface->originalHeight();
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uchar *data = iface->getPreviewImage();
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Digikam::DImg image(iface->previewWidth(), iface->previewHeight(), iface->previewSixteenBit(),
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iface->previewHasAlpha(), data);
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delete [] data;
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m_threadedFilter = dynamic_cast<Digikam::DImgThreadedFilter *>(
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new FreeRotation(&image, this, angle, antialiasing, autocrop,
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background, orgW, orgH));
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}
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void ImageEffect_FreeRotation::prepareFinal()
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{
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m_angleInput->setEnabled(false);
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m_fineAngleInput->setEnabled(false);
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m_antialiasInput->setEnabled(false);
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m_autoCropCB->setEnabled(false);
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double angle = m_angleInput->value() + m_fineAngleInput->value();
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bool antialiasing = m_antialiasInput->isChecked();
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int autocrop = m_autoCropCB->currentItem();
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TQColor background = TQt::black;
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Digikam::ImageIface iface(0, 0);
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int orgW = iface.originalWidth();
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int orgH = iface.originalHeight();
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uchar *data = iface.getOriginalImage();
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Digikam::DImg orgImage(orgW, orgH, iface.originalSixteenBit(),
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iface.originalHasAlpha(), data);
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delete [] data;
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m_threadedFilter = dynamic_cast<Digikam::DImgThreadedFilter *>(
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new FreeRotation(&orgImage, this, angle, antialiasing, autocrop,
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background, orgW, orgH));
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}
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void ImageEffect_FreeRotation::putPreviewData(void)
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{
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Digikam::ImageIface* iface = m_imagePreviewWidget->imageIface();
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int w = iface->previewWidth();
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int h = iface->previewHeight();
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Digikam::DImg imTemp = m_threadedFilter->getTargetImage().smoothScale(w, h, TQSize::ScaleMin);
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Digikam::DImg imDest( w, h, m_threadedFilter->getTargetImage().sixteenBit(),
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m_threadedFilter->getTargetImage().hasAlpha() );
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imDest.fill( Digikam::DColor(paletteBackgroundColor().rgb(),
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m_threadedFilter->getTargetImage().sixteenBit()) );
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imDest.bitBltImage(&imTemp, (w-imTemp.width())/2, (h-imTemp.height())/2);
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iface->putPreviewImage((imDest.smoothScale(iface->previewWidth(),
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iface->previewHeight())).bits());
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m_imagePreviewWidget->updatePreview();
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TQSize newSize = dynamic_cast<FreeRotation *>(m_threadedFilter)->getNewSize();
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TQString temp;
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m_newWidthLabel->setText(temp.setNum( newSize.width()) + i18n(" px") );
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m_newHeightLabel->setText(temp.setNum( newSize.height()) + i18n(" px") );
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}
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void ImageEffect_FreeRotation::putFinalData(void)
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{
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Digikam::ImageIface iface(0, 0);
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Digikam::DImg targetImage = m_threadedFilter->getTargetImage();
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iface.putOriginalImage(i18n("Free Rotation"),
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targetImage.bits(),
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targetImage.width(), targetImage.height());
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}
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void ImageEffect_FreeRotation::renderingFinished()
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{
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m_angleInput->setEnabled(true);
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m_fineAngleInput->setEnabled(true);
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m_antialiasInput->setEnabled(true);
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m_autoCropCB->setEnabled(true);
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kapp->restoreOverrideCursor();
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}
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} // NameSpace DigikamFreeRotationImagesPlugin
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