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598 lines
18 KiB
598 lines
18 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 : 2005-05-07
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* Description : A threaded filter plugin dialog with a preview
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* image guide widget and a settings user area
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*
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* Copyright (C) 2005-2007 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 <tqvgroupbox.h>
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#include <tqlabel.h>
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#include <tqpushbutton.h>
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#include <tqwhatsthis.h>
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#include <tqtooltip.h>
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#include <tqlayout.h>
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#include <tqframe.h>
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#include <tqtimer.h>
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#include <tqspinbox.h>
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#include <tqsplitter.h>
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#include <tqhbox.h>
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// KDE includes.
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#include <kcursor.h>
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#include <klocale.h>
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#include <kaboutdata.h>
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#include <khelpmenu.h>
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#include <kiconloader.h>
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#include <kapplication.h>
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#include <kpopupmenu.h>
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#include <kstandarddirs.h>
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#include <kglobalsettings.h>
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#include <kprogress.h>
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#include <kcolorbutton.h>
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#include <kconfig.h>
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#include <kseparator.h>
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// Local includes.
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#include "ddebug.h"
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#include "sidebar.h"
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#include "dimgthreadedfilter.h"
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#include "dimginterface.h"
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#include "imageguidedlg.h"
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#include "imageguidedlg.moc"
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namespace Digikam
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{
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class ImageGuideDlgPriv
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{
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public:
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enum RunningMode
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{
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NoneRendering=0,
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PreviewRendering,
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FinalRendering
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};
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ImageGuideDlgPriv()
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{
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tryAction = false;
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progress = true;
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currentRenderingMode = NoneRendering;
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parent = 0;
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settings = 0;
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timer = 0;
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aboutData = 0;
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guideColorBt = 0;
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progressBar = 0;
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guideSize = 0;
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mainLayout = 0;
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settingsLayout = 0;
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hbox = 0;
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settingsSideBar = 0;
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splitter = 0;
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}
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bool tryAction;
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bool progress;
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int currentRenderingMode;
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TQWidget *parent;
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TQWidget *settings;
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TQTimer *timer;
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TQString name;
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TQGridLayout *mainLayout;
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TQGridLayout *settingsLayout;
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TQSpinBox *guideSize;
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TQHBox *hbox;
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TQSplitter *splitter;
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KProgress *progressBar;
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KColorButton *guideColorBt;
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KAboutData *aboutData;
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Sidebar *settingsSideBar;
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};
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ImageGuideDlg::ImageGuideDlg(TQWidget* parent, TQString title, TQString name,
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bool loadFileSettings, bool progress,
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bool guideVisible, int guideMode, TQFrame* bannerFrame,
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bool prevModeOptions, bool useImageSelection,
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bool tryAction)
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: KDialogBase(Plain, 0,
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Help|Default|User1|User2|User3|Try|Ok|Cancel, Ok,
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parent, 0, true, true,
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i18n("&Abort"),
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i18n("&Save As..."),
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i18n("&Load..."))
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{
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kapp->setOverrideCursor( KCursor::waitCursor() );
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setCaption(DImgInterface::defaultInterface()->getImageFileName() + TQString(" - ") + title);
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d = new ImageGuideDlgPriv;
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d->parent = parent;
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d->name = name;
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d->progress = progress;
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d->tryAction = tryAction;
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m_threadedFilter = 0;
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TQString whatsThis;
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setButtonWhatsThis ( Default, i18n("<p>Reset all filter parameters to their default values.") );
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setButtonWhatsThis ( User1, i18n("<p>Abort the current image rendering.") );
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setButtonWhatsThis ( User3, i18n("<p>Load all filter parameters from settings text file.") );
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setButtonWhatsThis ( User2, i18n("<p>Save all filter parameters to settings text file.") );
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showButton(User2, loadFileSettings);
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showButton(User3, loadFileSettings);
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showButton(Try, tryAction);
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resize(configDialogSize(name + TQString(" Tool Dialog")));
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// -------------------------------------------------------------
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d->mainLayout = new TQGridLayout( plainPage(), 2, 1);
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if (bannerFrame)
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{
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bannerFrame->reparent( plainPage(), TQPoint(0, 0) );
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d->mainLayout->addMultiCellWidget(bannerFrame, 0, 0, 0, 1);
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}
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// -------------------------------------------------------------
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TQString desc;
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if (guideVisible)
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desc = i18n("<p>This is the the image filter effect preview. "
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"If you move the mouse cursor on this area, "
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"a vertical and horizontal dashed line will be draw "
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"to guide you in adjusting the filter settings. "
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"Press the left mouse button to freeze the dashed "
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"line's position.");
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else
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desc = i18n("<p>This is the image filter effect preview.");
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d->hbox = new TQHBox(plainPage());
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d->splitter = new TQSplitter(d->hbox);
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m_imagePreviewWidget = new ImageWidget(d->name, d->splitter, desc, prevModeOptions,
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guideMode, guideVisible, useImageSelection);
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d->splitter->setFrameStyle( TQFrame::NoFrame );
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d->splitter->setFrameShadow( TQFrame::Plain );
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d->splitter->setFrameShape( TQFrame::NoFrame );
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d->splitter->setOpaqueResize(false);
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TQSizePolicy rightSzPolicy(TQSizePolicy::Preferred, TQSizePolicy::Expanding, 2, 1);
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m_imagePreviewWidget->tqsetSizePolicy(rightSzPolicy);
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TQString sbName(d->name + TQString(" Image Plugin Sidebar"));
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d->settingsSideBar = new Sidebar(d->hbox, sbName.ascii(), Sidebar::Right);
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d->settingsSideBar->setSplitter(d->splitter);
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d->mainLayout->addMultiCellWidget(d->hbox, 1, 2, 0, 1);
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d->mainLayout->setColStretch(0, 10);
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d->mainLayout->setRowStretch(2, 10);
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// -------------------------------------------------------------
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d->settings = new TQWidget(plainPage());
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d->settingsLayout = new TQGridLayout( d->settings, 1, 0);
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TQVBoxLayout *vLayout = new TQVBoxLayout( spacingHint() );
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// -------------------------------------------------------------
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TQWidget *gboxGuideSettings = new TQWidget(d->settings);
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TQGridLayout* grid = new TQGridLayout( gboxGuideSettings, 2, 2, marginHint(), spacingHint());
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KSeparator *line = new KSeparator(Qt::Horizontal, gboxGuideSettings);
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grid->addMultiCellWidget(line, 0, 0, 0, 2);
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TQLabel *label5 = new TQLabel(i18n("Guide color:"), gboxGuideSettings);
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d->guideColorBt = new KColorButton( TQColor( TQt::red ), gboxGuideSettings );
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TQWhatsThis::add( d->guideColorBt, i18n("<p>Set here the color used to draw guides dashed-lines."));
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grid->addMultiCellWidget(label5, 1, 1, 0, 0);
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grid->addMultiCellWidget(d->guideColorBt, 1, 1, 2, 2);
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TQLabel *label6 = new TQLabel(i18n("Guide width:"), gboxGuideSettings);
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d->guideSize = new TQSpinBox( 1, 5, 1, gboxGuideSettings);
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TQWhatsThis::add( d->guideSize, i18n("<p>Set here the width in pixels used to draw guides dashed-lines."));
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grid->addMultiCellWidget(label6, 2, 2, 0, 0);
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grid->addMultiCellWidget(d->guideSize, 2, 2, 2, 2);
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grid->setColStretch(1, 10);
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if (guideVisible) gboxGuideSettings->show();
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else gboxGuideSettings->hide();
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vLayout->addWidget(gboxGuideSettings);
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TQHBox *hbox = new TQHBox(d->settings);
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TQLabel *space1 = new TQLabel(hbox);
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space1->setFixedWidth(spacingHint());
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d->progressBar = new KProgress(100, hbox);
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d->progressBar->setMaximumHeight( fontMetrics().height() );
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TQWhatsThis::add(d->progressBar ,i18n("<p>This is the percentage of the task which has been completed up to this point."));
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d->progressBar->setValue(0);
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setProgressVisible(false);
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TQLabel *space2 = new TQLabel(hbox);
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space2->setFixedWidth(spacingHint());
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vLayout->addWidget(hbox);
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vLayout->addStretch(10);
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d->settingsLayout->addMultiCellLayout(vLayout, 1, 1, 0, 0);
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d->settingsSideBar->appendTab(d->settings, SmallIcon("configure"), i18n("Settings"));
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d->settingsSideBar->loadViewState();
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// Reading splitter sizes here prevent flicker effect in dialog.
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KConfig *config = kapp->config();
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config->setGroup(d->name + TQString(" Tool Dialog"));
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if(config->hasKey("SplitterSizes"))
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d->splitter->setSizes(config->readIntListEntry("SplitterSizes"));
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// -------------------------------------------------------------
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TQTimer::singleShot(0, this, TQT_SLOT(slotInit()));
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kapp->restoreOverrideCursor();
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}
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ImageGuideDlg::~ImageGuideDlg()
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{
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if (d->timer)
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delete d->timer;
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if (m_threadedFilter)
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delete m_threadedFilter;
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if (d->aboutData)
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delete d->aboutData;
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delete d->settingsSideBar;
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delete d;
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}
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void ImageGuideDlg::readSettings(void)
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{
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TQColor defaultGuideColor(TQt::red);
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KConfig *config = kapp->config();
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config->setGroup(d->name + TQString(" Tool Dialog"));
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d->guideColorBt->setColor(config->readColorEntry("Guide Color", &defaultGuideColor));
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d->guideSize->setValue(config->readNumEntry("Guide Width", 1));
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m_imagePreviewWidget->slotChangeGuideSize(d->guideSize->value());
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m_imagePreviewWidget->slotChangeGuideColor(d->guideColorBt->color());
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}
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void ImageGuideDlg::writeSettings(void)
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{
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KConfig *config = kapp->config();
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config->setGroup(d->name + TQString(" Tool Dialog"));
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config->writeEntry( "Guide Color", d->guideColorBt->color() );
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config->writeEntry( "Guide Width", d->guideSize->value() );
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config->writeEntry( "SplitterSizes", d->splitter->sizes() );
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config->sync();
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saveDialogSize(d->name + TQString(" Tool Dialog"));
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}
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void ImageGuideDlg::slotInit()
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{
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readSettings();
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// Reset values to defaults.
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TQTimer::singleShot(0, this, TQT_SLOT(readUserSettings()));
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if (!d->tryAction)
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{
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connect(m_imagePreviewWidget, TQT_SIGNAL(signalResized()),
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this, TQT_SLOT(slotResized()));
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}
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connect(d->guideColorBt, TQT_SIGNAL(changed(const TQColor &)),
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m_imagePreviewWidget, TQT_SLOT(slotChangeGuideColor(const TQColor &)));
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connect(d->guideSize, TQT_SIGNAL(valueChanged(int)),
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m_imagePreviewWidget, TQT_SLOT(slotChangeGuideSize(int)));
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}
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void ImageGuideDlg::setUserAreaWidget(TQWidget *w)
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{
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w->reparent( d->settings, TQPoint(0, 0) );
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TQVBoxLayout *vLayout = new TQVBoxLayout( spacingHint() );
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vLayout->addWidget(w);
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d->settingsLayout->addMultiCellLayout(vLayout, 0, 0, 0, 0);
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}
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void ImageGuideDlg::setAboutData(KAboutData *about)
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{
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d->aboutData = about;
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TQPushButton *helpButton = actionButton( Help );
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KHelpMenu* helpMenu = new KHelpMenu(this, d->aboutData, false);
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helpMenu->menu()->removeItemAt(0);
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helpMenu->menu()->insertItem(i18n("digiKam Handbook"), this, TQT_SLOT(slotHelp()), 0, -1, 0);
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helpButton->setPopup( helpMenu->menu() );
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}
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void ImageGuideDlg::setProgressVisible(bool v)
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{
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if (v)
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d->progressBar->show();
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else
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d->progressBar->hide();
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}
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void ImageGuideDlg::abortPreview()
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{
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d->currentRenderingMode = ImageGuideDlgPriv::NoneRendering;
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d->progressBar->setValue(0);
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setProgressVisible(false);
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enableButton(Ok, true);
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enableButton(User1, false);
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enableButton(User2, true);
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enableButton(User3, true);
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enableButton(Try, true);
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enableButton(Default, true);
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renderingFinished();
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}
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void ImageGuideDlg::slotTry()
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{
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slotEffect();
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}
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void ImageGuideDlg::slotResized(void)
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{
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if (d->currentRenderingMode == ImageGuideDlgPriv::FinalRendering)
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{
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m_imagePreviewWidget->update();
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return;
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}
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else if (d->currentRenderingMode == ImageGuideDlgPriv::PreviewRendering)
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{
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if (m_threadedFilter)
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m_threadedFilter->stopComputation();
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}
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TQTimer::singleShot(0, this, TQT_SLOT(slotEffect()));
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}
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void ImageGuideDlg::slotUser1()
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{
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if (d->currentRenderingMode != ImageGuideDlgPriv::NoneRendering)
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if (m_threadedFilter)
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m_threadedFilter->stopComputation();
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}
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void ImageGuideDlg::slotDefault()
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{
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resetValues();
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slotEffect();
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}
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void ImageGuideDlg::slotCancel()
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{
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if (d->currentRenderingMode != ImageGuideDlgPriv::NoneRendering)
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{
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if (m_threadedFilter)
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m_threadedFilter->stopComputation();
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kapp->restoreOverrideCursor();
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}
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writeSettings();
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done(Cancel);
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}
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void ImageGuideDlg::closeEvent(TQCloseEvent *e)
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{
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if (d->currentRenderingMode != ImageGuideDlgPriv::NoneRendering)
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{
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if (m_threadedFilter)
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m_threadedFilter->stopComputation();
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kapp->restoreOverrideCursor();
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}
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writeSettings();
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e->accept();
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}
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void ImageGuideDlg::slotHelp()
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{
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// If setAboutData() is called by plugin, well DigikamImagePlugins help is lauched,
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// else digiKam help. In this case, setHelp() method must be used to set anchor and handbook name.
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if (d->aboutData)
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KApplication::kApplication()->invokeHelp(d->name, "digikam");
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else
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KDialogBase::slotHelp();
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}
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void ImageGuideDlg::slotTimer()
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{
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if (d->timer)
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{
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d->timer->stop();
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delete d->timer;
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}
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d->timer = new TQTimer( this );
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connect( d->timer, TQT_SIGNAL(timeout()),
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this, TQT_SLOT(slotEffect()) );
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d->timer->start(500, true);
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}
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void ImageGuideDlg::slotEffect()
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{
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// Computation already in process.
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if (d->currentRenderingMode != ImageGuideDlgPriv::NoneRendering)
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return;
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d->currentRenderingMode = ImageGuideDlgPriv::PreviewRendering;
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DDebug() << "Preview " << d->name << " started..." << endl;
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enableButton(Ok, false);
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enableButton(User1, true);
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enableButton(User2, false);
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enableButton(User3, false);
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enableButton(Default, false);
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enableButton(Try, false);
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d->progressBar->setValue(0);
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if (d->progress) setProgressVisible(true);
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if (m_threadedFilter)
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{
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delete m_threadedFilter;
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m_threadedFilter = 0;
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}
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prepareEffect();
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}
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void ImageGuideDlg::slotOk()
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{
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d->currentRenderingMode = ImageGuideDlgPriv::FinalRendering;
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DDebug() << "Final " << d->name << " started..." << endl;
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writeSettings();
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writeUserSettings();
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enableButton(Ok, false);
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enableButton(User1, false);
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enableButton(User2, false);
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enableButton(User3, false);
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enableButton(Default, false);
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enableButton(Try, false);
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kapp->setOverrideCursor( KCursor::waitCursor() );
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d->progressBar->setValue(0);
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if (m_threadedFilter)
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{
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delete m_threadedFilter;
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m_threadedFilter = 0;
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}
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prepareFinal();
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}
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void ImageGuideDlg::customEvent(TQCustomEvent *event)
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{
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if (!event) return;
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DImgThreadedFilter::EventData *ed = (DImgThreadedFilter::EventData*) event->data();
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if (!ed) return;
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if (ed->starting) // Computation in progress !
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{
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d->progressBar->setValue(ed->progress);
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}
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else
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{
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if (ed->success) // Computation Completed !
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{
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switch (d->currentRenderingMode)
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{
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case ImageGuideDlgPriv::PreviewRendering:
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{
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DDebug() << "Preview " << d->name << " completed..." << endl;
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putPreviewData();
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abortPreview();
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break;
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}
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case ImageGuideDlgPriv::FinalRendering:
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{
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DDebug() << "Final" << d->name << " completed..." << endl;
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putFinalData();
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kapp->restoreOverrideCursor();
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accept();
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break;
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|
}
|
|
}
|
|
}
|
|
else // Computation Failed !
|
|
{
|
|
switch (d->currentRenderingMode)
|
|
{
|
|
case ImageGuideDlgPriv::PreviewRendering:
|
|
{
|
|
DDebug() << "Preview " << d->name << " failed..." << endl;
|
|
// abortPreview() must be call here for set progress bar to 0 properly.
|
|
abortPreview();
|
|
break;
|
|
}
|
|
|
|
case ImageGuideDlgPriv::FinalRendering:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
delete ed;
|
|
}
|
|
|
|
// Backport KDialog::keyPressEvent() implementation from KDELibs to ignore Enter/Return Key events
|
|
// to prevent any conflicts between dialog keys events and SpinBox keys events.
|
|
|
|
void ImageGuideDlg::keyPressEvent(TQKeyEvent *e)
|
|
{
|
|
if ( e->state() == 0 )
|
|
{
|
|
switch ( e->key() )
|
|
{
|
|
case Key_Escape:
|
|
e->accept();
|
|
reject();
|
|
break;
|
|
case Key_Enter:
|
|
case Key_Return:
|
|
e->ignore();
|
|
break;
|
|
default:
|
|
e->ignore();
|
|
return;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// accept the dialog when Ctrl-Return is pressed
|
|
if ( e->state() == ControlButton &&
|
|
(e->key() == Key_Return || e->key() == Key_Enter) )
|
|
{
|
|
e->accept();
|
|
accept();
|
|
}
|
|
else
|
|
{
|
|
e->ignore();
|
|
}
|
|
}
|
|
}
|
|
|
|
} // NameSpace Digikam
|