/*
 *  Copyright (c) 1999 Matthias Elter  <me@kde.org>
 *  Copyright (c) 2000 John Califf  <jcaliff@compuzone.net>
 *  Copyright (c) 2001 Toshitaka Fujioka  <fujioka@kde.org>
 *  Copyright (c) 2002, 2003 Patrick Julien <freak@codepimps.org>
 *
 *  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.
 */

// TQt
#include <tqapplication.h>
#include <tqdom.h>
#include <tqimage.h>
#include <tqpainter.h>
#include <tqtl.h>
#include <tqstringlist.h>
#include <tqwidget.h>
#include <tqpaintdevicemetrics.h>

// KDE
#include <dcopobject.h>
#include <kapplication.h>
#include <kcommand.h>
#include <kdebug.h>
#include <kimageio.h>
#include <kfiledialog.h>
#include <kglobal.h>
#include <kmimetype.h>
#include <knotifyclient.h>
#include <klocale.h>
#include <kmessagebox.h>

// KOffice
#include <KoFilterManager.h>
#include <KoMainWindow.h>
#include <KoQueryTrader.h>
#include <KoStore.h>
#include <KoStoreDevice.h>
#include <KoTemplateChooseDia.h>
#include <KoApplication.h>
#include <KoCommandHistory.h>

// Local
#include <kis_clipboard.h>
#include <kis_meta_registry.h>
#include "kis_annotation.h"
#include "kis_types.h"
#include "kis_config.h"
#include "kis_debug_areas.h"
#include "kis_doc.h"
#include "kis_factory.h"
#include "kis_image.h"
#include "kis_layer.h"
#include "kis_paint_layer.h"
#include "kis_nameserver.h"
#include "kis_painter.h"
#include "kis_selection.h"
#include "kis_fill_painter.h"
#include "kis_command.h"
#include "kis_view.h"
#include "kis_colorspace.h"
#include "kis_colorspace_factory_registry.h"
#include "kis_profile.h"
#include "kis_id.h"
#include "kis_part_layer.h"
#include "kis_doc_iface.h"
#include "kis_paint_device_action.h"
#include "kis_custom_image_widget.h"
#include "kis_load_visitor.h"
#include "kis_save_visitor.h"
#include "kis_savexml_visitor.h"

static const char *CURRENT_DTD_VERSION = "1.3";

/**
 * Mime type for this app - not same as file type, but file types
 * can be associated with a mime type and are opened with applications
 * associated with the same mime type
 */
#define APP_MIMETYPE "application/x-chalk"

/**
 * Mime type for native file format
 */
#define NATIVE_MIMETYPE "application/x-kra"

namespace {
    class KisCommandImageMv : public KisCommand {
        typedef KisCommand super;

    public:
        KisCommandImageMv(KisDoc *doc,
                  KisUndoAdapter *adapter,
                  const TQString& name,
                  const TQString& oldName) : super(i18n("Rename Image"), adapter)
            {
                m_doc = doc;
                m_name = name;
                m_oldName = oldName;
            }

        virtual ~KisCommandImageMv()
            {
            }

        virtual void execute()
            {
                adapter()->setUndo(false);
                m_doc->renameImage(m_oldName, m_name);
                adapter()->setUndo(true);
            }

        virtual void unexecute()
            {
                adapter()->setUndo(false);
                m_doc->renameImage(m_name, m_oldName);
                adapter()->setUndo(true);
            }

    private:
        KisDoc *m_doc;
        TQString m_name;
        TQString m_oldName;
    };

}

KisDoc::KisDoc(TQWidget *parentWidget, const char *widgetName, TQObject *parent, const char *name, bool singleViewMode) :
    super(parentWidget, widgetName, parent, name, singleViewMode)
{

    m_undo = false;
    m_dcop = 0;
    m_cmdHistory = 0;
    m_nserver = 0;
    m_currentImage = 0;
    m_currentMacro = 0;
    m_macroNestDepth = 0;
    m_ioProgressBase = 0;
    m_ioProgressTotalSteps = 0;

    setInstance( KisFactory::instance(), false );
    setTemplateType( "chalk_template" );

    init();

    if (name)
        dcopObject();
}

KisDoc::~KisDoc()
{
    delete m_cmdHistory;
    delete m_nserver;
    m_undoListeners.setAutoDelete(false);
    delete m_dcop;
}

TQCString KisDoc::mimeType() const
{
    return APP_MIMETYPE;
}

DCOPObject *KisDoc::dcopObject()
{
    if (!m_dcop) {
        m_dcop = new KisDocIface(this);
        Q_CHECK_PTR(m_dcop);
    }
    return m_dcop;
}

bool KisDoc::initDoc(InitDocFlags flags, TQWidget* parentWidget)
{
    if (!init())
        return false;

    bool ok = false;

    TQString file;
    KoTemplateChooseDia::DialogType dlgtype;

     if (flags != KoDocument::InitDocFileNew) {
        dlgtype = KoTemplateChooseDia::Everything;
    } else {
         dlgtype = KoTemplateChooseDia::OnlyTemplates;
    }

    KoTemplateChooseDia::ReturnType ret =
        KoTemplateChooseDia::choose(KisFactory::instance(),
                        file,
                        dlgtype,
                        "chalk_template",
                        parentWidget);
    setUndo(false);

    if (ret == KoTemplateChooseDia::Template) {
        resetURL();
        ok = loadNativeFormat( file );
        setEmpty();
        ok = true;

    } else if (ret == KoTemplateChooseDia::File) {
        KURL url( file );
        ok = openURL(url);
    } else if (ret == KoTemplateChooseDia::Empty) {
        setEmpty();
        ok = true;
    }

    setModified(false);
    KisConfig cfg;
    setUndo(cfg.undoEnabled());

    return ok;
}

void KisDoc::openExistingFile(const TQString& file)
{
  setUndo(false);

  KoDocument::openExistingFile(file);

  setUndo(true);
}

void KisDoc::openTemplate(const TQString& file)
{
  setUndo(false);

  KoDocument::openTemplate(file);

  setUndo(true);
}

bool KisDoc::init()
{
    if (m_cmdHistory) {
        delete m_cmdHistory;
        m_cmdHistory = 0;
    }

    if (m_nserver) {
        delete m_nserver;
        m_nserver = 0;
    }

    m_cmdHistory = new KoCommandHistory(actionCollection(), true);
    Q_CHECK_PTR(m_cmdHistory);

    connect(m_cmdHistory, TQT_SIGNAL(documentRestored()), this, TQT_SLOT(slotDocumentRestored()));
    connect(m_cmdHistory, TQT_SIGNAL(commandExecuted(KCommand *)), this, TQT_SLOT(slotCommandExecuted(KCommand *)));
    setUndo(true);

    m_nserver = new KisNameServer(i18n("Image %1"), 1);
    Q_CHECK_PTR(m_nserver);

    if (!KisMetaRegistry::instance()->csRegistry()->exists(KisID("RGBA",""))) {
        KMessageBox::sorry(0, i18n("No colorspace modules loaded: cannot run Chalk"));
        return false;
    }

    m_undoListeners.setAutoDelete(false);

    return true;
}

TQDomDocument KisDoc::saveXML()
{
    TQDomDocument doc = createDomDocument("DOC", CURRENT_DTD_VERSION);
    TQDomElement root = doc.documentElement();

    root.setAttribute("editor", "Chalk");
    root.setAttribute("depth", sizeof(TQ_UINT8));
    root.setAttribute("syntaxVersion", "1");

    root.appendChild(saveImage(doc, m_currentImage));

    return doc;
}

bool KisDoc::loadOasis( const TQDomDocument&, KoOasisStyles&, const TQDomDocument&, KoStore* )
{
    //XXX: todo (and that includes defining an OASIS format for layered 2D raster data!)
    return false;
}


bool KisDoc::saveOasis( KoStore*, KoXmlWriter* )
{
    //XXX: todo (and that includes defining an OASIS format for layered 2D raster data!)
    return false;
}

bool KisDoc::loadXML(TQIODevice *, const TQDomDocument& doc)
{
    TQDomElement root;
    TQString attr;
    TQDomNode node;
    KisImageSP img;

    if (!init())
        return false;
    if (doc.doctype().name() != "DOC")
        return false;
    root = doc.documentElement();
    attr = root.attribute("syntaxVersion");
     if (attr.toInt() > 1)
         return false;
    if ((attr = root.attribute("depth")).isNull())
        return false;
    m_conversionDepth = attr.toInt();

    if (!root.hasChildNodes()) {
        return false; // XXX used to be: return slotNewImage();
    }

    setUndo(false);

    for (node = root.firstChild(); !node.isNull(); node = node.nextSibling()) {
        if (node.isElement()) {
            if (node.nodeName() == "IMAGE") {
                TQDomElement elem = node.toElement();
                if (!(img = loadImage(elem)))
                    return false;
                m_currentImage = img;
            } else {
                return false;
            }
        }
    }

    emit loadingFinished();
    return true;
}

bool KisDoc::loadChildren(KoStore* store) {
    TQPtrListIterator<KoDocumentChild> it(tqchildren());
    for( ; it.current(); ++it ) {
        if (!it.current()->loadDocument(store)) {
            return false;
        }
    }
    return true;
}

TQDomElement KisDoc::saveImage(TQDomDocument& doc, KisImageSP img)
{
    TQDomElement image = doc.createElement("IMAGE");

    Q_ASSERT(img);
    image.setAttribute("name", img->name());
    image.setAttribute("mime", "application/x-kra");
    image.setAttribute("width", img->width());
    image.setAttribute("height", img->height());
    image.setAttribute("colorspacename", img->colorSpace()->id().id());
    image.setAttribute("description", img->description());
    // XXX: Save profile as blob inside the image, instead of the product name.
    if (img->getProfile() && img->getProfile()-> valid())
        image.setAttribute("profile", img->getProfile()->productName());
    image.setAttribute("x-res", img->xRes());
    image.setAttribute("y-res", img->yRes());

    TQ_UINT32 count=0;
    KisSaveXmlVisitor visitor(doc, image, count, true);

    m_currentImage->rootLayer()->accept(visitor);

    return image;
}

KisImageSP KisDoc::loadImage(const TQDomElement& element)
{

    KisConfig cfg;
    TQString attr;
    TQDomNode node;
    TQDomNode child;
    KisImageSP img;
    TQString name;
    TQ_INT32 width;
    TQ_INT32 height;
    TQString description;
    TQString profileProductName;
    double xres;
    double yres;
    TQString colorspacename;
    KisColorSpace * cs;

    if ((attr = element.attribute("mime")) == NATIVE_MIMETYPE) {
        if ((name = element.attribute("name")).isNull())
            return 0;
        if ((attr = element.attribute("width")).isNull())
            return 0;
        width = attr.toInt();
        if ((attr = element.attribute("height")).isNull())
            return 0;
        height = attr.toInt();

        description = element.attribute("description");

        if ((attr = element.attribute("x-res")).isNull())
            xres = 100.0;
        xres = attr.toDouble();

        if ((attr = element.attribute("y-res")).isNull())
            yres = 100.0;
        yres = attr.toDouble();

        if ((colorspacename = element.attribute("colorspacename")).isNull())
        {
            // An old file: take a reasonable default.
            // Chalk didn't support anything else in those
            // days anyway.
            colorspacename = "RGBA";
        }

        // A hack for an old colorspacename
        if (colorspacename  == "Grayscale + Alpha")
            colorspacename  = "GRAYA";

        if ((profileProductName = element.attribute("profile")).isNull()) {
            // no mention of profile so get default profile
            cs = KisMetaRegistry::instance()->csRegistry()->getColorSpace(colorspacename,"");
        }
        else {
            cs = KisMetaRegistry::instance()->csRegistry()->getColorSpace(colorspacename, profileProductName);
        }

        if (cs == 0) {
            kdWarning(DBG_AREA_FILE) << "Could not open colorspace\n";
            return 0;
        }

        img = new KisImage(this, width, height, cs, name);
        img->blockSignals(true); // Don't send out signals while we're building the image
        Q_CHECK_PTR(img);
        connect( img, TQT_SIGNAL( sigImageModified() ), this, TQT_SLOT( slotImageUpdated() ));
        img->setDescription(description);
        img->setResolution(xres, yres);

        loadLayers(element, img, img->rootLayer().data());

    }

    img->notifyImageLoaded();

    return img;
}

void KisDoc::loadLayers(const TQDomElement& element, KisImageSP img, KisGroupLayerSP parent)
{
    TQDomNode node = element.firstChild();
    TQDomNode child;

    if(!node.isNull())
    {
        if (node.isElement()) {
            if (node.nodeName() == "LAYERS") {
                for (child = node.firstChild(); !child.isNull(); child = child.nextSibling()) {
                    KisLayerSP layer = loadLayer(child.toElement(), img);

                    if (!layer) {
                        kdWarning(DBG_AREA_FILE) << "Could not load layer\n";
                    }
                    else {
                        img->nextLayerName(); // Make sure the nameserver is current with the number of layers.
                        img->addLayer(layer, parent, 0);
                    }
                }
            }
        }
    }
}

KisLayerSP KisDoc::loadLayer(const TQDomElement& element, KisImageSP img)
{
    // Nota bene: If you add new properties to layers, you should
    // ALWAYS define a default value in case the property is not
    // present in the layer definition: this helps a LOT with backward
    // compatibilty.
    TQString attr;
    TQString name;
    TQ_INT32 x;
    TQ_INT32 y;
    TQ_INT32 opacity;
    bool visible;
    bool locked;

    if ((name = element.attribute("name")).isNull())
        return 0;

    if ((attr = element.attribute("x")).isNull())
        return 0;
    x = attr.toInt();

    if ((attr = element.attribute("y")).isNull())
        return 0;

    y = attr.toInt();

    if ((attr = element.attribute("opacity")).isNull())
        return 0;

    if ((opacity = attr.toInt()) < 0 || opacity > TQ_UINT8_MAX)
        opacity = OPACITY_OPAQUE;


    TQString compositeOpName = element.attribute("compositeop");
    KisCompositeOp compositeOp;

    if (compositeOpName.isNull()) {
        compositeOp = COMPOSITE_OVER;
    } else {
        compositeOp = KisCompositeOp(compositeOpName);
    }

    if (!compositeOp.isValid()) {
        return 0;
    }

    if ((attr = element.attribute("visible")).isNull())
        attr = "1";

    visible = attr == "0" ? false : true;

    if ((attr = element.attribute("locked")).isNull())
        attr = "0";

    locked = attr == "0" ? false : true;

    // Now find out the layer type and do specific handling
    if ((attr = element.attribute("layertype")).isNull())
        return loadPaintLayer(element, img, name, x, y, opacity, visible, locked, compositeOp) ;

    if(attr == "paintlayer")
        return loadPaintLayer(element, img, name, x, y, opacity, visible, locked, compositeOp);

    if(attr == "grouplayer")
        return loadGroupLayer(element, img, name, x, y, opacity, visible, locked, compositeOp).data();

    if(attr == "adjustmentlayer")
        return loadAdjustmentLayer(element, img, name, x, y, opacity, visible, locked, compositeOp).data();

    if(attr == "partlayer")
        return loadPartLayer(element, img, name, x, y, opacity, visible, locked, compositeOp).data();

    kdWarning(DBG_AREA_FILE) << "Specified layertype is not recognised\n";
    return 0;
}


KisLayerSP KisDoc::loadPaintLayer(const TQDomElement& element, KisImageSP img,
                                  TQString name, TQ_INT32 x, TQ_INT32 y,
                                  TQ_INT32 opacity, bool visible, bool locked, KisCompositeOp compositeOp)
{
    TQString attr;
    KisPaintLayerSP layer;
    KisColorSpace * cs;

    TQString colorspacename;
    TQString profileProductName;

    if ((colorspacename = element.attribute("colorspacename")).isNull())
        cs = img->colorSpace();
    else
        // use default profile - it will be replaced later in completLoading
        cs = KisMetaRegistry::instance()->csRegistry()->getColorSpace(colorspacename,"");

    layer = new KisPaintLayer(img, name, opacity, cs);
    Q_CHECK_PTR(layer);

    layer->setCompositeOp(compositeOp);
    layer->setVisible(visible);
    layer->setLocked(locked);
    layer->setX(x);
    layer->setY(y);

    if ((element.attribute("filename")).isNull())
        m_layerFilenames[layer.data()] = name;
    else
        m_layerFilenames[layer.data()] = TQString(element.attribute("filename"));

    if ((attr = element.attribute("hasmask")).isNull())
        attr = "0";

    if (attr == "1") {
        // We add a mask, but we'll fill in the actual mask later in completeLoading with the visitor
        layer->createMask();
    }


    // Load exif info
    for( TQDomNode node = element.firstChild(); !node.isNull(); node = node.nextSibling() )
    {
        TQDomElement e = node.toElement();
        if ( !e.isNull() && e.tagName() == "ExifInfo" )
        {
            layer->paintDevice()->exifInfo()->load(e);
        }
    }
    return layer.data();
}

KisGroupLayerSP KisDoc::loadGroupLayer(const TQDomElement& element, KisImageSP img,
                                       TQString name, TQ_INT32 x, TQ_INT32 y, TQ_INT32 opacity, bool visible, bool locked,
                                       KisCompositeOp compositeOp)
{
    TQString attr;
    KisGroupLayerSP layer;

    layer = new KisGroupLayer(img, name, opacity);
    Q_CHECK_PTR(layer);

    layer->setCompositeOp(compositeOp);
    layer->setVisible(visible);
    layer->setLocked(locked);
    layer->setX(x);
    layer->setY(y);

    loadLayers(element, img, layer);

    return layer;
}

KisAdjustmentLayerSP KisDoc::loadAdjustmentLayer(const TQDomElement& element, KisImageSP img,
                                             TQString name, TQ_INT32 x, TQ_INT32 y, TQ_INT32 opacity, bool visible, bool locked,
                                             KisCompositeOp compositeOp)
{
    TQString attr;
    KisAdjustmentLayerSP layer;
    TQString filtername;

    if ((filtername = element.attribute("filtername")).isNull()) {
        // XXX: Invalid adjustmentlayer! We should warn about it!
        kdWarning(DBG_AREA_FILE) << "No filter in adjustment layer" << endl;
        return 0;
    }

    KisFilter * f = KisFilterRegistry::instance()->get(filtername);
    if (!f) {
        kdWarning(DBG_AREA_FILE) << "No filter for filtername " << filtername << "\n";
        return 0; // XXX: We don't have this filter. We should warn about it!
    }

    KisFilterConfiguration * kfc = f->configuration();

    // We'll load the configuration and the selection later.
    layer = new KisAdjustmentLayer(img, name, kfc, 0);
    Q_CHECK_PTR(layer);

    layer->setCompositeOp(compositeOp);
    layer->setVisible(visible);
    layer->setLocked(locked);
    layer->setX(x);
    layer->setY(y);
    layer->setOpacity(opacity);

    if ((element.attribute("filename")).isNull())
        m_layerFilenames[layer.data()] = name;
    else
        m_layerFilenames[layer.data()] = TQString(element.attribute("filename"));

    return layer;
}

KisPartLayerSP KisDoc::loadPartLayer(const TQDomElement& element, KisImageSP img,
                                     TQString name, TQ_INT32 /*x*/, TQ_INT32 /*y*/, TQ_INT32 opacity,
                                      bool visible, bool locked,
                                      KisCompositeOp compositeOp) {
    KisChildDoc* child = new KisChildDoc(this);
    TQString filename(element.attribute("filename"));
    TQDomElement partElement = element.namedItem("object").toElement();

    if (partElement.isNull()) {
        kdWarning() << "loadPartLayer failed with partElement isNull" << endl;
        return 0;
    }

    child->load(partElement);
    insertChild(child);

    KisPartLayerSP layer = new KisPartLayerImpl(img, child);
    Q_CHECK_PTR(layer);

    layer->setCompositeOp(compositeOp);
    layer->setVisible(visible);
    layer->setLocked(locked);
    layer->setOpacity(opacity);
    layer->setName(name);

    return layer;
}

bool KisDoc::completeSaving(KoStore *store)
{
    TQString uri = url().url();
    TQString location;
    bool external = isStoredExtern();
    TQ_INT32 totalSteps = 0;

    if (!m_currentImage) return false;

    totalSteps = (m_currentImage)->nlayers();


    setIOSteps(totalSteps + 1);

    // Save the layers data
    TQ_UINT32 count=0;
    KisSaveVisitor visitor(m_currentImage, store, count);

    if(external)
        visitor.setExternalUri(uri);

    m_currentImage->rootLayer()->accept(visitor);

    // saving annotations
    // XXX this only saves EXIF and ICC info. This would probably need
    // a redesign of the dtd of the chalk file to do this more generally correct
    // e.g. have <ANNOTATION> tags or so.
    KisAnnotationSP annotation = (m_currentImage)->annotation("exif");
    if (annotation) {
        location = external ? TQString() : uri;
        location += (m_currentImage)->name() + "/annotations/exif";
        if (store->open(location)) {
            store->write(annotation->annotation());
            store->close();
        }
    }
    if (m_currentImage->getProfile()) {
        annotation = m_currentImage->getProfile()->annotation();

        if (annotation) {
            location = external ? TQString() : uri;
            location += m_currentImage->name() + "/annotations/icc";
            if (store->open(location)) {
                store->write(annotation->annotation());
                store->close();
            }
        }
    }

    IODone();
    return true;
}

bool KisDoc::completeLoading(KoStore *store)
{
    TQString uri = url().url();
    TQString location;
    bool external = isStoredExtern();
    TQ_INT32 totalSteps = 0;

    totalSteps = (m_currentImage)->nlayers();

    setIOSteps(totalSteps);

    // Load the layers data
    KisLoadVisitor visitor(m_currentImage, store, m_layerFilenames);

    if(external)
        visitor.setExternalUri(uri);

    m_currentImage->rootLayer()->accept(visitor);

    // annotations
    // exif
    location = external ? TQString() : uri;
    location += (m_currentImage)->name() + "/annotations/exif";
    if (store->hasFile(location)) {
        TQByteArray data;
        store->open(location);
        data = store->read(store->size());
        store->close();
        (m_currentImage)->addAnnotation(new KisAnnotation("exif", "", data));
    }
    // icc profile
    location = external ? TQString() : uri;
    location += (m_currentImage)->name() + "/annotations/icc";
    if (store->hasFile(location)) {
        TQByteArray data;
        store->open(location);
        data = store->read(store->size());
        store->close();
        (m_currentImage)->setProfile(new KisProfile(data));
    }

    IODone();

    setModified( false );
    setUndo(true);
    return true;
}

TQWidget* KisDoc::createCustomDocumentWidget(TQWidget *parent)
{

    KisConfig cfg;

    int w = cfg.defImgWidth();
    int h = cfg.defImgHeight();

    TQSize sz = KisClipboard::instance()->clipSize();
    if (sz.isValid() && sz.width() != 0 && sz.height() != 0) {
        w = sz.width();
        h = sz.height();
    }
    return new KisCustomImageWidget(parent, this, w, h, cfg.defImgResolution(), cfg.workingColorSpace(),"unnamed");
}


KoDocument* KisDoc::hitTest(const TQPoint &pos, const TQWMatrix& matrix) {
    KoDocument* doc = super::hitTest(pos, matrix);
    if (doc && doc != this) {
        // We hit a child document. We will only acknowledge we hit it, if the hit child
        // is the currently active parts layer.
        KisPartLayerImpl* partLayer
                = dynamic_cast<KisPartLayerImpl*>(currentImage()->activeLayer().data());

        if (!partLayer)
            return this;

        if (doc == partLayer->childDoc()->document()) {
            return doc;
        }
        return this;
    }
    return doc;
}

void KisDoc::renameImage(const TQString& oldName, const TQString& newName)
{
    (m_currentImage)->setName(newName);

    if (undo())
        addCommand(new KisCommandImageMv(this, this, newName, oldName));
}


KisImageSP KisDoc::newImage(const TQString& name, TQ_INT32 width, TQ_INT32 height, KisColorSpace * colorstrategy)
{
    if (!init())
        return 0;

    setUndo(false);

    KisImageSP img = new KisImage(this, width, height, colorstrategy, name);
    Q_CHECK_PTR(img);
    connect( img, TQT_SIGNAL( sigImageModified() ), this, TQT_SLOT( slotImageUpdated() ));

    KisPaintLayer *layer = new KisPaintLayer(img, img->nextLayerName(), OPACITY_OPAQUE,colorstrategy);
    Q_CHECK_PTR(layer);

    KisColorSpace * cs = KisMetaRegistry::instance()->csRegistry()->getRGB8();
    KisFillPainter painter;

    painter.begin(layer->paintDevice());
    painter.fillRect(0, 0, width, height, KisColor(TQt::white, cs), OPACITY_OPAQUE);
    painter.end();

    img->addLayer(layer, img->rootLayer(), 0);
    img->activate(layer);

    m_currentImage = img;

    setUndo(true);

    return img;
}

bool KisDoc::newImage(const TQString& name, TQ_INT32 width, TQ_INT32 height, KisColorSpace * cs, const KisColor &bgColor, const TQString &imgDescription, const double imgResolution)
{
    if (!init())
        return false;

    KisConfig cfg;

    TQ_UINT8 opacity = OPACITY_OPAQUE;//bgColor.getAlpha();
    KisImageSP img;
    KisPaintLayer *layer;

    if (!cs) return false;

    setUndo(false);

    img = new KisImage(this, width, height, cs, name);
    Q_CHECK_PTR(img);
    connect( img, TQT_SIGNAL( sigImageModified() ), this, TQT_SLOT( slotImageUpdated() ));
    img->setResolution(imgResolution, imgResolution);
    img->setDescription(imgDescription);
    img->setProfile(cs->getProfile());

    layer = new KisPaintLayer(img, img->nextLayerName(), OPACITY_OPAQUE, cs);
    Q_CHECK_PTR(layer);

    KisFillPainter painter;
    painter.begin(layer->paintDevice());
    painter.fillRect(0, 0, width, height, bgColor, opacity);
    painter.end();

    TQValueVector<KisPaintDeviceAction *> actions = KisMetaRegistry::instance() ->
                csRegistry()->paintDeviceActionsFor(cs);
    for (uint i = 0; i < actions.count(); i++)
        actions.at(i)->act(layer->paintDevice(), img->width(), img->height());

    img->setBackgroundColor(bgColor);
    img->addLayer(layer, img->rootLayer(), 0);
    img->activate(layer);

    m_currentImage = img;

    cfg.defImgWidth(width);
    cfg.defImgHeight(height);
    cfg.defImgResolution(imgResolution);

    setUndo(true);

    return true;
}

KoView* KisDoc::createViewInstance(TQWidget* parent, const char *name)
{
    KisView * v = new KisView(this, this, parent, name);
    Q_CHECK_PTR(v);

    return v;
}

void KisDoc::paintContent(TQPainter& painter, const TQRect& rc, bool transparent, double zoomX, double zoomY)
{
    KisConfig cfg;
    TQString monitorProfileName = cfg.monitorProfile();
    KisProfile *  profile = KisMetaRegistry::instance()->csRegistry()->getProfileByName(monitorProfileName);
    painter.scale(zoomX, zoomY);
    TQRect rect = rc & m_currentImage->bounds();
    KisImage::PaintFlags paintFlags;
    if (transparent) {
        paintFlags = KisImage::PAINT_SELECTION;
    } else {
        paintFlags = (KisImage::PaintFlags)(KisImage::PAINT_BACKGROUND|KisImage::PAINT_SELECTION);
    }

    paintFlags = (KisImage::PaintFlags)(paintFlags | KisImage::PAINT_EMBEDDED_RECT);

    m_currentImage->renderToPainter(rect.left(), rect.top(), rect.right(), rect.bottom(), painter, profile, paintFlags);
}

void KisDoc::slotImageUpdated()
{
    emit docUpdated();
    setModified(true);
}

void KisDoc::slotImageUpdated(const TQRect& rect)
{
    emit docUpdated(rect);
}

void KisDoc::beginMacro(const TQString& macroName)
{
    if (m_undo) {
        if (m_macroNestDepth == 0) {
            Q_ASSERT(m_currentMacro == 0);
            m_currentMacro = new KMacroCommand(macroName);
            Q_CHECK_PTR(m_currentMacro);
        }

        m_macroNestDepth++;
    }
}

void KisDoc::endMacro()
{
    if (m_undo) {
        Q_ASSERT(m_macroNestDepth > 0);
        if (m_macroNestDepth > 0) {
            m_macroNestDepth--;

            if (m_macroNestDepth == 0) {
                Q_ASSERT(m_currentMacro != 0);

                m_cmdHistory->addCommand(m_currentMacro, false);
                m_currentMacro = 0;
                emit sigCommandExecuted();
            }
        }
    }
}

void KisDoc::setCommandHistoryListener(const KisCommandHistoryListener * l)
{
   // Never have more than one instance of a listener around. TQt should prove a Set class for this...
    m_undoListeners.removeRef(l);
    m_undoListeners.append(l);
}

void KisDoc::removeCommandHistoryListener(const KisCommandHistoryListener * l)
{
   m_undoListeners.removeRef(l);
}

KCommand * KisDoc::presentCommand()
{
    return m_cmdHistory->presentCommand();
}

void KisDoc::addCommand(KCommand *cmd)
{
    Q_ASSERT(cmd);

    KisCommandHistoryListener* l = 0;

    for (l = m_undoListeners.first(); l; l = m_undoListeners.next()) {
        l->notifyCommandAdded(cmd);
    }

    setModified(true);

    if (m_undo) {
        if (m_currentMacro)
            m_currentMacro->addCommand(cmd);
        else {
            m_cmdHistory->addCommand(cmd, false);
            emit sigCommandExecuted();
        }
    } else {
        kdDebug() << "Deleting command\n";
        delete cmd;
    }
}

void KisDoc::setUndo(bool undo)
{
    m_undo = undo;
    if (m_undo && m_cmdHistory->undoLimit() == 50 /*default*/) {
        KisConfig cfg;
        setUndoLimit( cfg.defUndoLimit() );
    }
}

TQ_INT32 KisDoc::undoLimit() const
{
    return m_cmdHistory->undoLimit();
}

void KisDoc::setUndoLimit(TQ_INT32 limit)
{
    m_cmdHistory->setUndoLimit(limit);
}

TQ_INT32 KisDoc::redoLimit() const
{
    return m_cmdHistory->redoLimit();
}

void KisDoc::setRedoLimit(TQ_INT32 limit)
{
    m_cmdHistory->setRedoLimit(limit);
}

void KisDoc::slotDocumentRestored()
{
    setModified(false);
}

void KisDoc::slotCommandExecuted(KCommand *command)
{
    setModified(true);
    emit sigCommandExecuted();

    KisCommandHistoryListener* l = 0;

    for (l = m_undoListeners.first(); l; l = m_undoListeners.next()) {
        l->notifyCommandExecuted(command);
    }

}

void KisDoc::slotUpdate(KisImageSP, TQ_UINT32 x, TQ_UINT32 y, TQ_UINT32 w, TQ_UINT32 h)
{
    TQRect rc(x, y, w, h);

    emit docUpdated(rc);
}

bool KisDoc::undo() const
{
    return m_undo;
}

void KisDoc::setIOSteps(TQ_INT32 nsteps)
{
    m_ioProgressTotalSteps = nsteps * 100;
    m_ioProgressBase = 0;
    emitProgress(0);
}

void KisDoc::IOCompletedStep()
{
    m_ioProgressBase += 100;
}

void KisDoc::IODone()
{
    emitProgress(-1);
}

void KisDoc::slotIOProgress(TQ_INT8 percentage)
{
    KApplication *app = KApplication::kApplication();

    Q_ASSERT(app);

    if (app->hasPendingEvents())
        app->processEvents();

    int totalPercentage = ((m_ioProgressBase + percentage) * 100) / m_ioProgressTotalSteps;

    emitProgress(totalPercentage);
}

KisChildDoc * KisDoc::createChildDoc( const TQRect & rect, KoDocument* childDoc )
{
    KisChildDoc * ch = new KisChildDoc( this, rect, childDoc );
    insertChild( ch );
    ch->document()->setStoreInternal(true);
    return ch;
}

void KisDoc::prepareForImport()
{
    if (m_nserver == 0)
        init();
    setUndo(false);
}

KisImageSP KisDoc::currentImage()
{
    return m_currentImage;
}

void KisDoc::setCurrentImage(KisImageSP image)
{
    m_currentImage = image;
    setUndo(true);
    image->notifyImageLoaded();
    emit loadingFinished();
}

void KisDoc::initEmpty()
{
    KisConfig cfg;
    KisColorSpace * rgb = KisMetaRegistry::instance()->csRegistry()->getRGB8();
    newImage("", cfg.defImgWidth(), cfg.defImgHeight(), rgb);
}

#include "kis_doc.moc"