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digikam/digikam/libs/widgets/imageplugins/imagepannelwidget.cpp

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/* ============================================================
*
* This file is a part of digiKam project
* http://www.digikam.org
*
* Date : 2005-07-01
* Description : a widget to draw a control pannel image tool.
*
* Copyright (C) 2005-2008 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 <tqframe.h>
#include <tqvgroupbox.h>
#include <tqlabel.h>
#include <tqpixmap.h>
#include <tqtooltip.h>
#include <tqwhatsthis.h>
#include <tqtimer.h>
#include <tqhbuttongroup.h>
#include <tqpushbutton.h>
#include <tqlayout.h>
#include <tqpixmap.h>
// KDE includes.
#include <kdialog.h>
#include <klocale.h>
#include <kcursor.h>
#include <kprogress.h>
#include <kapplication.h>
#include <kiconloader.h>
#include <tdeconfig.h>
#include <kstandarddirs.h>
#include <kseparator.h>
// Local includes.
#include "ddebug.h"
#include "sidebar.h"
#include "statuszoombar.h"
#include "thumbnailsize.h"
#include "imageregionwidget.h"
#include "imagepaniconwidget.h"
#include "imagepannelwidget.h"
#include "imagepannelwidget.moc"
namespace Digikam
{
class ImagePannelWidgetPriv
{
public:
ImagePannelWidgetPriv()
{
imageRegionWidget = 0;
imagePanIconWidget = 0;
mainLayout = 0;
separateView = 0;
progressBar = 0;
settingsSideBar = 0;
splitter = 0;
settingsLayout = 0;
settings = 0;
previewWidget = 0;
zoomBar = 0;
}
TQGridLayout *mainLayout;
TQHButtonGroup *separateView;
TQString settingsSection;
TQWidget *settings;
TQWidget *previewWidget;
TQVBoxLayout *settingsLayout;
TQSplitter *splitter;
KProgress *progressBar;
ImageRegionWidget *imageRegionWidget;
ImagePanIconWidget *imagePanIconWidget;
Sidebar *settingsSideBar;
StatusZoomBar *zoomBar;
};
ImagePannelWidget::ImagePannelWidget(uint w, uint h, const TQString& settingsSection,
TQWidget *parent, int separateViewMode)
: TQHBox(parent, 0, TQt::WDestructiveClose)
{
d = new ImagePannelWidgetPriv;
d->settingsSection = settingsSection;
d->splitter = new TQSplitter(this);
d->previewWidget = new TQWidget(d->splitter);
d->mainLayout = new TQGridLayout( d->previewWidget, 2, 3, 0, KDialog::spacingHint());
d->splitter->setFrameStyle( TQFrame::NoFrame );
d->splitter->setFrameShadow( TQFrame::Plain );
d->splitter->setFrameShape( TQFrame::NoFrame );
d->splitter->setOpaqueResize(false);
// -------------------------------------------------------------
TQFrame *preview = new TQFrame(d->previewWidget);
TQVBoxLayout* l1 = new TQVBoxLayout(preview, 5, 0);
d->imageRegionWidget = new ImageRegionWidget(w, h, preview, false);
d->imageRegionWidget->setFrameStyle(TQFrame::NoFrame);
preview->setFrameStyle(TQFrame::Panel|TQFrame::Sunken);
TQWhatsThis::add( d->imageRegionWidget, i18n("<p>Here you can see the original clip image "
"which will be used for the preview computation."
"<p>Click and drag the mouse cursor in the "
"image to change the clip focus."));
l1->addWidget(d->imageRegionWidget, 0);
TQSizePolicy rightSzPolicy(TQSizePolicy::Preferred, TQSizePolicy::Expanding, 2, 1);
d->previewWidget->setSizePolicy(rightSzPolicy);
// -------------------------------------------------------------
d->zoomBar = new StatusZoomBar(d->previewWidget);
TQWhatsThis::add( d->zoomBar, i18n("<p>Here set the zoom factor of the preview area.") );
// -------------------------------------------------------------
TQString directory;
d->separateView = new TQHButtonGroup(d->previewWidget);
d->separateView->setExclusive(true);
d->separateView->setInsideMargin( 0 );
d->separateView->setFrameShape(TQFrame::NoFrame);
if (separateViewMode == SeparateViewDuplicate ||
separateViewMode == SeparateViewAll)
{
TQPushButton *duplicateHorButton = new TQPushButton( d->separateView );
d->separateView->insert(duplicateHorButton, ImageRegionWidget::SeparateViewDuplicateHorz);
TDEGlobal::dirs()->addResourceType("duplicatebothhorz", TDEGlobal::dirs()->kde_default("data") + "digikam/data");
directory = TDEGlobal::dirs()->findResourceDir("duplicatebothhorz", "duplicatebothhorz.png");
duplicateHorButton->setPixmap( TQPixmap( directory + "duplicatebothhorz.png" ) );
duplicateHorButton->setToggleButton(true);
TQWhatsThis::add( duplicateHorButton, i18n("<p>If you enable this option, you will separate the preview area "
"horizontally, displaying the original and target image "
"at the same time. The target is duplicated from the original "
"below the red dashed line." ) );
TQPushButton *duplicateVerButton = new TQPushButton( d->separateView );
d->separateView->insert(duplicateVerButton, ImageRegionWidget::SeparateViewDuplicateVert);
TDEGlobal::dirs()->addResourceType("duplicatebothvert", TDEGlobal::dirs()->kde_default("data") + "digikam/data");
directory = TDEGlobal::dirs()->findResourceDir("duplicatebothvert", "duplicatebothvert.png");
duplicateVerButton->setPixmap( TQPixmap( directory + "duplicatebothvert.png" ) );
duplicateVerButton->setToggleButton(true);
TQWhatsThis::add( duplicateVerButton, i18n("<p>If you enable this option, you will separate the preview area "
"vertically, displaying the original and target image "
"at the same time. The target is duplicated from the original to "
"the right of the red dashed line." ) );
}
if (separateViewMode == SeparateViewNormal ||
separateViewMode == SeparateViewAll)
{
TQPushButton *separateHorButton = new TQPushButton( d->separateView );
d->separateView->insert(separateHorButton, ImageRegionWidget::SeparateViewHorizontal);
TDEGlobal::dirs()->addResourceType("bothhorz", TDEGlobal::dirs()->kde_default("data") + "digikam/data");
directory = TDEGlobal::dirs()->findResourceDir("bothhorz", "bothhorz.png");
separateHorButton->setPixmap( TQPixmap( directory + "bothhorz.png" ) );
separateHorButton->setToggleButton(true);
TQWhatsThis::add( separateHorButton, i18n( "<p>If you enable this option, you will separate the preview area "
"horizontally, displaying the original and target image "
"at the same time. The original is above the "
"red dashed line, the target below it." ) );
TQPushButton *separateVerButton = new TQPushButton( d->separateView );
d->separateView->insert(separateVerButton, ImageRegionWidget::SeparateViewVertical);
TDEGlobal::dirs()->addResourceType("bothvert", TDEGlobal::dirs()->kde_default("data") + "digikam/data");
directory = TDEGlobal::dirs()->findResourceDir("bothvert", "bothvert.png");
separateVerButton->setPixmap( TQPixmap( directory + "bothvert.png" ) );
separateVerButton->setToggleButton(true);
TQWhatsThis::add( separateVerButton, i18n( "<p>If you enable this option, you will separate the preview area "
"vertically, displaying the original and target image "
"at the same time. The original is to the left of the "
"red dashed line, the target to the right of it." ) );
}
TQPushButton *noSeparateButton = new TQPushButton( d->separateView );
d->separateView->insert(noSeparateButton, ImageRegionWidget::SeparateViewNone);
TDEGlobal::dirs()->addResourceType("target", TDEGlobal::dirs()->kde_default("data") + "digikam/data");
directory = TDEGlobal::dirs()->findResourceDir("target", "target.png");
noSeparateButton->setPixmap( TQPixmap( directory + "target.png" ) );
noSeparateButton->setToggleButton(true);
TQWhatsThis::add( noSeparateButton, i18n( "<p>If you enable this option, the preview area will not "
"be separated." ) );
// -------------------------------------------------------------
d->progressBar = new KProgress(100, d->previewWidget);
TQWhatsThis::add(d->progressBar ,i18n("<p>This is the percentage of the task which has been completed up to this point."));
d->progressBar->setProgress(0);
d->progressBar->setMaximumHeight( fontMetrics().height() );
// -------------------------------------------------------------
d->mainLayout->addMultiCellWidget(preview, 0, 1, 0, 3);
d->mainLayout->addMultiCellWidget(d->zoomBar, 2, 2, 0, 0);
d->mainLayout->addMultiCellWidget(d->progressBar, 2, 2, 2, 2);
d->mainLayout->addMultiCellWidget(d->separateView, 2, 2, 3, 3);
d->mainLayout->setRowStretch(1, 10);
d->mainLayout->setColStretch(1, 10);
// -------------------------------------------------------------
TQString sbName(d->settingsSection + TQString(" Image Plugin Sidebar"));
d->settingsSideBar = new Sidebar(this, sbName.ascii(), Sidebar::Right);
d->settingsSideBar->setSplitter(d->splitter);
d->settings = new TQWidget(d->settingsSideBar);
d->settingsLayout = new TQVBoxLayout(d->settings);
TQFrame *frame3 = new TQFrame(d->settings);
frame3->setFrameStyle(TQFrame::Panel|TQFrame::Sunken);
TQVBoxLayout* l3 = new TQVBoxLayout(frame3, 5, 0);
d->imagePanIconWidget = new ImagePanIconWidget(360, 240, frame3);
TQWhatsThis::add( d->imagePanIconWidget, i18n("<p>Here you can see the original image panel "
"which can help you to select the clip preview."
"<p>Click and drag the mouse cursor in the "
"red rectangle to change the clip focus."));
l3->addWidget(d->imagePanIconWidget, 0, TQt::AlignCenter);
d->settingsLayout->addWidget(frame3, 0, TQt::AlignHCenter);
d->settingsLayout->addSpacing(KDialog::spacingHint());
d->settingsSideBar->appendTab(d->settings, SmallIcon("configure"), i18n("Settings"));
d->settingsSideBar->loadViewState();
// -------------------------------------------------------------
setProgressVisible(false);
TQTimer::singleShot(0, this, TQT_SLOT(slotInitGui()));
// -------------------------------------------------------------
connect(d->imageRegionWidget, TQT_SIGNAL(signalContentsMovedEvent(bool)),
this, TQT_SLOT(slotOriginalImageRegionChanged(bool)));
connect(d->imagePanIconWidget, TQT_SIGNAL(signalSelectionMoved(const TQRect&, bool)),
this, TQT_SLOT(slotSetImageRegionPosition(const TQRect&, bool)));
connect(d->imagePanIconWidget, TQT_SIGNAL(signalSelectionTakeFocus()),
this, TQT_SLOT(slotPanIconTakeFocus()));
connect(d->separateView, TQT_SIGNAL(released(int)),
d->imageRegionWidget, TQT_SLOT(slotSeparateViewToggled(int)));
connect(d->separateView, TQT_SIGNAL(released(int)),
d->imagePanIconWidget, TQT_SLOT(slotSeparateViewToggled(int)));
connect(d->zoomBar, TQT_SIGNAL(signalZoomMinusClicked()),
d->imageRegionWidget, TQT_SLOT(slotDecreaseZoom()));
connect(d->zoomBar, TQT_SIGNAL(signalZoomPlusClicked()),
d->imageRegionWidget, TQT_SLOT(slotIncreaseZoom()));
connect(d->zoomBar, TQT_SIGNAL(signalZoomSliderReleased(int)),
this, TQT_SLOT(slotZoomSliderChanged(int)));
}
ImagePannelWidget::~ImagePannelWidget()
{
writeSettings();
delete d->settingsSideBar;
delete d;
}
void ImagePannelWidget::readSettings()
{
TDEConfig *config = kapp->config();
config->setGroup(d->settingsSection);
int mode = config->readNumEntry("Separate View", ImageRegionWidget::SeparateViewDuplicateVert);
mode = TQMAX(ImageRegionWidget::SeparateViewHorizontal, mode);
mode = TQMIN(ImageRegionWidget::SeparateViewDuplicateHorz, mode);
d->imageRegionWidget->blockSignals(true);
d->imagePanIconWidget->blockSignals(true);
d->separateView->blockSignals(true);
d->imageRegionWidget->slotSeparateViewToggled( mode );
d->imagePanIconWidget->slotSeparateViewToggled( mode );
d->separateView->setButton( mode );
d->imageRegionWidget->blockSignals(false);
d->imagePanIconWidget->blockSignals(false);
d->separateView->blockSignals(false);
}
void ImagePannelWidget::writeSettings()
{
TDEConfig *config = kapp->config();
config->setGroup(d->settingsSection);
config->writeEntry( "Separate View", d->separateView->selectedId() );
config->sync();
}
void ImagePannelWidget::slotOriginalImageRegionChanged(bool target)
{
slotZoomFactorChanged(d->imageRegionWidget->zoomFactor());
TQRect rect = getOriginalImageRegion();
d->imagePanIconWidget->setRegionSelection(rect);
updateSelectionInfo(rect);
if (target)
{
d->imageRegionWidget->backupPixmapRegion();
emit signalOriginalClipFocusChanged();
}
}
void ImagePannelWidget::slotZoomFactorChanged(double zoom)
{
double h = (double)ThumbnailSize::Huge;
double s = (double)ThumbnailSize::Small;
double zmin = d->imageRegionWidget->zoomMin();
double zmax = d->imageRegionWidget->zoomMax();
double b = (zmin-(zmax*s/h))/(1-s/h);
double a = (zmax-b)/h;
int size = (int)((zoom - b) /a);
d->zoomBar->setZoomSliderValue(size);
d->zoomBar->setZoomTrackerText(i18n("zoom: %1%").arg((int)(zoom*100.0)));
d->zoomBar->setEnableZoomPlus(true);
d->zoomBar->setEnableZoomMinus(true);
if (d->imageRegionWidget->maxZoom())
d->zoomBar->setEnableZoomPlus(false);
if (d->imageRegionWidget->minZoom())
d->zoomBar->setEnableZoomMinus(false);
d->imagePanIconWidget->slotZoomFactorChanged(zoom);
}
void ImagePannelWidget::slotZoomSliderChanged(int size)
{
double h = (double)ThumbnailSize::Huge;
double s = (double)ThumbnailSize::Small;
double zmin = d->imageRegionWidget->zoomMin();
double zmax = d->imageRegionWidget->zoomMax();
double b = (zmin-(zmax*s/h))/(1-s/h);
double a = (zmax-b)/h;
double z = a*size+b;
d->imageRegionWidget->setZoomFactorSnapped(z);
}
KProgress *ImagePannelWidget::progressBar()
{
return d->progressBar;
}
void ImagePannelWidget::resizeEvent(TQResizeEvent *)
{
emit signalResized();
}
void ImagePannelWidget::slotInitGui()
{
readSettings();
setCenterImageRegionPosition();
slotOriginalImageRegionChanged(true);
}
void ImagePannelWidget::setPanIconHighLightPoints(const TQPointArray& pt)
{
d->imageRegionWidget->setHighLightPoints(pt);
d->imagePanIconWidget->setHighLightPoints(pt);
}
void ImagePannelWidget::slotPanIconTakeFocus()
{
d->imageRegionWidget->restorePixmapRegion();
}
void ImagePannelWidget::setUserAreaWidget(TQWidget *w)
{
w->reparent( d->settings, TQPoint(0, 0) );
d->settingsLayout->addSpacing(KDialog::spacingHint());
d->settingsLayout->addWidget(w);
d->settingsLayout->addStretch();
}
void ImagePannelWidget::setEnable(bool b)
{
d->imageRegionWidget->setEnabled(b);
d->imagePanIconWidget->setEnabled(b);
d->separateView->setEnabled(b);
d->zoomBar->setEnabled(b);
}
void ImagePannelWidget::setProgress(int val)
{
d->progressBar->setValue(val);
}
void ImagePannelWidget::setProgressVisible(bool b)
{
if (b) d->progressBar->show();
else d->progressBar->hide();
}
void ImagePannelWidget::setProgressWhatsThis(const TQString& desc)
{
TQWhatsThis::add( d->progressBar, desc);
}
void ImagePannelWidget::setPreviewImageWaitCursor(bool enable)
{
if ( enable )
d->imageRegionWidget->setCursor( KCursor::waitCursor() );
else
d->imageRegionWidget->unsetCursor();
}
TQRect ImagePannelWidget::getOriginalImageRegion()
{
return ( d->imageRegionWidget->getImageRegion() );
}
TQRect ImagePannelWidget::getOriginalImageRegionToRender()
{
return ( d->imageRegionWidget->getImageRegionToRender() );
}
DImg ImagePannelWidget::getOriginalRegionImage()
{
return ( d->imageRegionWidget->getImageRegionImage() );
}
void ImagePannelWidget::setPreviewImage(DImg img)
{
d->imageRegionWidget->updatePreviewImage(&img);
}
void ImagePannelWidget::setCenterImageRegionPosition()
{
d->imageRegionWidget->setCenterContentsPosition();
}
void ImagePannelWidget::slotSetImageRegionPosition(const TQRect& rect, bool targetDone)
{
d->imageRegionWidget->setContentsPosition(rect.x(), rect.y(), targetDone);
}
void ImagePannelWidget::updateSelectionInfo(const TQRect& rect)
{
TQToolTip::add( d->imagePanIconWidget,
i18n("<nobr>(%1,%2)(%3x%4)</nobr>")
.arg(rect.left()).arg(rect.top())
.arg(rect.width()).arg(rect.height()));
}
} // NameSpace Digikam