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koffice/chalk/ui/kis_previewwidget.cpp

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/*
* kis_previewwidget.cpp - part of Chalk
*
* Copyright (c) 2001 John Califf <jwcaliff@compuzone.net>
* Copyright (c) 2004 Bart Coppens <kde@bartcoppens.be>
* Copyright (c) 2005 Cyrille Berger <cberger@cberger.net>
* Copyright (c) 2007 Ben Schleimer <bensch128@yahoo.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 of the License, 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <tqcheckbox.h>
#include <tqradiobutton.h>
#include <tqpainter.h>
#include <tqpoint.h>
#include <tqpushbutton.h>
#include <tqlayout.h>
#include <tqlabel.h>
#include <tqapplication.h>
#include <tqcolor.h>
#include <tqgroupbox.h>
#include <tqcursor.h>
#include <tqtimer.h>
#include <kdebug.h>
#include <kiconloader.h>
#include <kpushbutton.h>
#include <kis_cursor.h>
#include <kis_colorspace.h>
#include <kis_colorspace_factory_registry.h>
#include <kis_config.h>
#include <kis_filter_strategy.h>
#include <kis_global.h>
#include <kis_image.h>
#include <kis_layer.h>
#include <kis_paint_layer.h>
#include <kis_group_layer.h>
#include <kis_meta_registry.h>
#include <kis_painter.h>
#include <kis_profile.h>
#include <kis_types.h>
#include <kis_undo_adapter.h>
#include <kis_label_progress.h>
#include <kis_selection.h>
#include <kis_transform_worker.h>
#include "kis_previewwidgetbase.h"
#include "kis_previewwidget.h"
#include "imageviewer.h"
static const int ZOOM_PAUSE = 100;
static const int FILTER_PAUSE = 500;
static const double ZOOM_FACTOR = 1.1;
KisPreviewWidget::KisPreviewWidget( TQWidget* parent, const char* name )
: PreviewWidgetBase( parent, name )
, m_autoupdate(true)
, m_previewIsDisplayed(true)
, m_scaledOriginal()
, m_dirtyOriginal(true)
, m_origDevice(new KisPaintDevice(KisMetaRegistry::instance()->csRegistry()->getRGB8(), "temp"))
, m_scaledPreview()
, m_dirtyPreview(true)
, m_previewDevice(new KisPaintDevice(KisMetaRegistry::instance()->csRegistry()->getRGB8(), "temp"))
, m_scaledImage(NULL)
, m_filterZoom(1.0)
, m_zoom(-1.0)
, m_profile(NULL)
, m_progress( 0 )
, m_zoomTimer(new TQTimer(this))
, m_filterTimer(new TQTimer(this))
, m_firstFilter(true)
, m_firstZoom(true)
{
btnZoomIn->setIconSet(TDEGlobal::instance()->iconLoader()->loadIconSet( "zoom-in", TDEIcon::MainToolbar, 16 ));
connect(btnZoomIn, TQ_SIGNAL(clicked()), this, TQ_SLOT(zoomIn()));
btnZoomOut->setIconSet(TDEGlobal::instance()->iconLoader()->loadIconSet( "zoom-out", TDEIcon::MainToolbar, 16 ));
connect(btnZoomOut, TQ_SIGNAL(clicked()), this, TQ_SLOT(zoomOut()));
btnUpdate->setIconSet(TDEGlobal::instance()->iconLoader()->loadIconSet( "reload", TDEIcon::MainToolbar, 16 ));
connect(btnUpdate, TQ_SIGNAL(clicked()), this, TQ_SLOT(forceUpdate()));
connect(radioBtnPreview, TQ_SIGNAL(toggled(bool)), this, TQ_SLOT(setPreviewDisplayed(bool)));
connect(checkBoxAutoUpdate, TQ_SIGNAL(toggled(bool)), this, TQ_SLOT(slotSetAutoUpdate(bool)));
btnZoomOneToOne->setIconSet(TDEGlobal::instance()->iconLoader()->loadIconSet( "zoom-original", TDEIcon::MainToolbar, 16 ));
connect(btnZoomOneToOne, TQ_SIGNAL(clicked()), this, TQ_SLOT(zoomOneToOne()));
m_progress = new KisLabelProgress(frmProgress);
m_progress->setMaximumHeight(fontMetrics().height() );
TQVBoxLayout *vbox = new TQVBoxLayout( frmProgress );
vbox->addWidget(m_progress);
m_progress->hide();
connect(m_zoomTimer, TQ_SIGNAL(timeout()), this, TQ_SLOT(updateZoom()));
connect(m_filterTimer, TQ_SIGNAL(timeout()), this, TQ_SLOT(runFilterHelper()));
/* kToolBar1->insertLineSeparator();
kToolBar1->insertButton("reload",2, true, i18n("Update"));
connect(kToolBar1->getButton(2),TQ_SIGNAL(clicked()),this,TQ_SLOT(forceUpdate()));
kToolBar1->insertButton("",3, true, i18n("Auto Update"));
connect(kToolBar1->getButton(3),TQ_SIGNAL(clicked()),this,TQ_SLOT(toggleAutoUpdate()));
kToolBar1->insertButton("",4, true, i18n("Switch"));
connect(kToolBar1->getButton(4),TQ_SIGNAL(clicked()),this,TQ_SLOT(toggleImageDisplayed()));*/
// these currently don't yet work, reenable when they do work :) (TZ-12-2005)
// TODO reenable these
// kToolBar1->insertButton("",5, true, i18n("Popup Original and Preview"));
}
KisPreviewWidget::~KisPreviewWidget() { }
void KisPreviewWidget::forceUpdate()
{
if(m_previewIsDisplayed)
{
m_groupBox->setTitle(m_origDevice->name());
emit updated();
}
}
void KisPreviewWidget::slotSetDevice(KisPaintDeviceSP dev)
{
Q_ASSERT( dev );
if (!dev) return;
m_origDevice = dev;
m_previewDevice = dev;
m_filterZoom = 1.0;
KisConfig cfg;
TQString monitorProfileName = cfg.monitorProfile();
m_profile = KisMetaRegistry::instance()->csRegistry()->getProfileByName(monitorProfileName);
TQRect r = dev->exactBounds();
m_groupBox->setTitle(i18n("Preview: ") + dev->name());
m_previewIsDisplayed = true;
m_zoom = -1.0;
zoomChanged(double(m_preview->width()) / double(r.width()) );
}
void KisPreviewWidget::updateZoom()
{
TQApplication::setOverrideCursor(KisCursor::waitCursor());
if(m_previewIsDisplayed)
{
if(m_dirtyPreview)
{
TQSize r = m_previewDevice->extent().size();
int w = r.width(), h = r.height();
int sw = int(ceil(m_zoom * w / m_filterZoom));
int sh = int(ceil(m_zoom * h / m_filterZoom));
m_dirtyPreview = false;
m_scaledPreview = m_previewDevice->convertToTQImage(m_profile, 0, 0, w, h);
m_scaledPreview = m_scaledPreview.scale(sw,sh, TQImage::ScaleMax); // Use scale instead of smoothScale for speed up
}
m_preview->setImage(m_scaledPreview);
} else
{
if(m_dirtyOriginal)
{
TQSize r = m_origDevice->extent().size();
int w = r.width(), h = r.height();
int sw = int(ceil(m_zoom * w));
int sh = int(ceil(m_zoom * h));
m_dirtyOriginal = false;
m_scaledOriginal = m_origDevice->convertToTQImage(m_profile, 0, 0, w, h);
m_scaledOriginal = m_scaledOriginal.scale(sw,sh, TQImage::ScaleMax); // Use scale instead of smoothScale for speed up
}
m_preview->setImage(m_scaledOriginal);
}
TQApplication::restoreOverrideCursor();
}
void KisPreviewWidget::slotSetAutoUpdate(bool set) {
m_autoupdate = set;
}
void KisPreviewWidget::wheelEvent(TQWheelEvent * e)
{
if (e->delta() > 0) {
zoomIn();
} else {
zoomOut();
}
e->accept();
}
void KisPreviewWidget::setPreviewDisplayed(bool v)
{
if(v != m_previewIsDisplayed)
{
m_previewIsDisplayed = v;
if(m_previewIsDisplayed) {
m_groupBox->setTitle(i18n("Preview: ") + m_origDevice->name());
} else {
m_groupBox->setTitle(i18n("Original: ") + m_origDevice->name());
}
// Call directly without any pause because there is no scaling
updateZoom();
}
}
void KisPreviewWidget::needUpdate()
{
if(m_previewIsDisplayed)
m_groupBox->setTitle(i18n("Preview (needs update)"));
}
bool KisPreviewWidget::getAutoUpdate() const {
return m_autoupdate;
}
void KisPreviewWidget::zoomChanged(const double zoom)
{
// constrain the zoom
double tZoom = zoom;
if(zoom <= 1./8.) { tZoom = 1./8.; }
if(zoom > 8.) { tZoom = 8.; }
if(tZoom != m_zoom)
{
m_zoom = tZoom;
m_dirtyOriginal = true;
m_dirtyPreview = true;
if(m_firstZoom) {
m_firstZoom = false;
updateZoom();
} else {
m_zoomTimer->start(ZOOM_PAUSE, true);
}
}
}
void KisPreviewWidget::zoomIn() {
zoomChanged(m_zoom * ZOOM_FACTOR);
}
void KisPreviewWidget::zoomOut() {
zoomChanged(m_zoom / ZOOM_FACTOR);
}
void KisPreviewWidget::zoomOneToOne() {
zoomChanged(1.0);
}
static inline void cropDevice(KisPaintDevice * device, const double & zoom) {
TQRect r = device->exactBounds();
r.setX(int(zoom * r.x()) );
r.setY(int(zoom * r.y()) );
r.setWidth(int(zoom * r.width()) );
r.setHeight(int(zoom * r.height()) );
device->crop(r);
}
class MyCropVisitor : public KisLayerVisitor {
const double m_zoom;
public:
MyCropVisitor(const double & z) : m_zoom(z) { }
virtual ~MyCropVisitor() { }
virtual bool visit(KisPaintLayer *layer) {
KisPaintDeviceSP device = layer->paintDevice();
::cropDevice(device.data(), m_zoom);
// Make sure we have a tight fit for the selection
if(device->hasSelection()) {
::cropDevice(device->selection().data(), m_zoom);
}
return true;
}
virtual bool visit(KisGroupLayer *layer) {
for(KisLayerSP l = layer->firstChild(); l; l = l->nextSibling()) {
l->accept(*this);
}
return true;
}
virtual bool visit(KisPartLayer *) { return true; }
virtual bool visit(KisAdjustmentLayer *) { return true; }
};
void KisPreviewWidget::runFilter(KisFilter * filter, KisFilterConfiguration * config) {
if(!filter) return;
if(!config) return;
m_filter = filter;
m_config = config;
if(m_firstFilter) {
m_firstFilter = false;
runFilterHelper();
} else {
m_filterTimer->start(FILTER_PAUSE, true);
}
}
/**
* XXX: Fix the situations which m_origDevice is NOT associated with a image.
* If it comes from a adjustment layer or projection or thumbnail. Currently, nothing happens
*/
void KisPreviewWidget::runFilterHelper() {
m_filterZoom = m_zoom;
// Dont scale more then 1.0 so we don't waste time in preview widget for large scaling.
if(m_filterZoom > 1.0) {
m_filterZoom = 1.0;
}
KisPaintDeviceSP scaledDevice;
KisHermiteFilterStrategy strategy;
// Copy the image and scale
if (m_origDevice->image())
{
m_scaledImage = new KisImage(*m_origDevice->image());
if(!m_origDevice->parentLayer()) return;
TQString layerName = m_origDevice->parentLayer()->name();
KisPaintLayerSP pl = ::tqt_cast<KisPaintLayer*>(m_scaledImage->findLayer(layerName));
if(!pl) return;
scaledDevice = pl->paintDevice();
KisSelectionSP select;
if(scaledDevice->hasSelection())
{
select = new KisSelection(*scaledDevice->selection());
scaledDevice->deselect();
}
// Scale
m_scaledImage->setUndoAdapter(NULL);
m_scaledImage->scale(m_filterZoom, m_filterZoom, NULL, &strategy);
// Scale the selection
if(select)
{
KisPaintDeviceSP t = select.data();
KisTransformWorker tw(t, m_filterZoom, m_filterZoom,
0.0, 0.0, 0.0, 0, 0, NULL, &strategy);
tw.run();
scaledDevice->setSelection(select);
select->setParentLayer(scaledDevice->parentLayer());
}
// Crop by the zoom value instead of cropping by rectangle. It gives better results
MyCropVisitor v(m_filterZoom);
m_scaledImage->rootLayer()->accept(v);
} else
{
scaledDevice = new KisPaintDevice(*m_origDevice);
KisSelectionSP select;
if(scaledDevice->hasSelection())
{
select = new KisSelection(*scaledDevice->selection());
scaledDevice->deselect();
}
KisTransformWorker tw(scaledDevice, m_filterZoom, m_filterZoom,
0.0, 0.0, 0.0, 0, 0, NULL, &strategy);
tw.run();
// Scale the selection
if(select)
{
KisPaintDeviceSP t = select.data();
KisTransformWorker tw(t, m_filterZoom, m_filterZoom,
0.0, 0.0, 0.0, 0, 0, NULL, &strategy);
tw.run();
scaledDevice->setSelection(select);
::cropDevice(select.data(), m_filterZoom);
}
::cropDevice(scaledDevice.data(), m_filterZoom);
}
m_previewDevice = new KisPaintDevice(*scaledDevice);
// Setup the progress display
m_filter->enableProgress();
m_progress->setSubject(m_filter, true, true);
m_filter->setProgressDisplay(m_progress);
m_filter->process(scaledDevice, m_previewDevice, m_config, scaledDevice->exactBounds());
m_filter->disableProgress();
m_dirtyPreview = true;
if(m_firstZoom) {
m_firstZoom = false;
updateZoom();
} else {
m_zoomTimer->start(ZOOM_PAUSE, true);
}
}
#include "kis_previewwidget.moc"