/*
 *  This file is part of RawTherapee.
 *
 *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
 *
 *  RawTherapee 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 3 of the License, or
 *  (at your option) any later version.
 *
 *  RawTherapee 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 RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
 */
#include "crop.h"
#include "options.h"
#include "rtimage.h"

using namespace rtengine;
using namespace rtengine::procparams;

extern Options options;

class RefreshSpinHelper {

    public:
        Crop* crop;
        bool  notify;
        RefreshSpinHelper (Crop* _crop, bool _notify)
            : crop(_crop), notify(_notify) {}
};

Crop::Crop (): FoldableToolPanel(this) {

  clistener = NULL;

  maxw = 3000;
  maxh = 2000;

  enabled = Gtk::manage (new Gtk::CheckButton (M("GENERAL_ENABLED")));
  enabled->set_active (false);
  pack_start(*enabled);

  pack_start(*Gtk::manage (new  Gtk::HSeparator()), Gtk::PACK_EXPAND_WIDGET, 4);

  Gtk::HBox* hb1 = Gtk::manage (new Gtk::HBox ());

  hb1->pack_start (*Gtk::manage (new Gtk::Label (Glib::ustring(" ") + M("TP_CROP_X") +": ")));
  x = Gtk::manage (new MySpinButton ());
  x->set_size_request (60, -1);
  hb1->pack_start (*x);

  hb1->pack_start (*Gtk::manage (new Gtk::Label (Glib::ustring("   ") + M("TP_CROP_Y") + ": ")));
  y = Gtk::manage (new MySpinButton ());
  y->set_size_request (60, -1);
  hb1->pack_start (*y);

  pack_start (*hb1, Gtk::PACK_SHRINK, 2);

  Gtk::HBox* hb2 = Gtk::manage (new Gtk::HBox ());

  hb2->pack_start (*Gtk::manage (new Gtk::Label (M("TP_CROP_W") + ": ")));
  w = Gtk::manage (new MySpinButton ());
  w->set_size_request (60, -1);
  hb2->pack_start (*w);

  hb2->pack_start (*Gtk::manage (new Gtk::Label (M("TP_CROP_H") + ": ")));
  h = Gtk::manage (new MySpinButton ());
  h->set_size_request (60, -1);
  hb2->pack_start (*h);

  pack_start (*hb2, Gtk::PACK_SHRINK, 4);

  selectCrop = Gtk::manage (new Gtk::Button (M("TP_CROP_SELECTCROP")));
  selectCrop->set_image (*Gtk::manage (new RTImage ("crop.png")));

  pack_start (*selectCrop, Gtk::PACK_SHRINK, 2);

  Gtk::HBox* hb3 = Gtk::manage (new Gtk::HBox ());

  fixr = Gtk::manage (new Gtk::CheckButton (M("TP_CROP_FIXRATIO")));
  fixr->set_active (1);

  hb3->pack_start (*fixr, Gtk::PACK_SHRINK, 4);

  ratio = Gtk::manage (new MyComboBoxText ());
  hb3->pack_start (*ratio, Gtk::PACK_EXPAND_WIDGET, 4);

  orientation = Gtk::manage (new MyComboBoxText ());
  hb3->pack_start (*orientation);

  pack_start (*hb3, Gtk::PACK_SHRINK, 4);

  Gtk::HBox* hb31 = Gtk::manage (new Gtk::HBox ());

  hb31->pack_start (*Gtk::manage (new Gtk::Label (M("TP_CROP_GUIDETYPE"))), Gtk::PACK_SHRINK, 4);
  guide = Gtk::manage (new MyComboBoxText ());
  hb31->pack_start (*guide);

  pack_start (*hb31, Gtk::PACK_SHRINK, 4);

  // ppibox START
  ppibox = Gtk::manage (new Gtk::VBox());
  ppibox->pack_start (*Gtk::manage (new  Gtk::HSeparator()), Gtk::PACK_SHRINK, 2);

  Gtk::HBox* hb4 = Gtk::manage (new Gtk::HBox ());
  hb4->pack_start (*Gtk::manage (new Gtk::Label (M("TP_CROP_PPI"))));
  ppi = Gtk::manage (new MySpinButton ());
  ppi->set_size_request (60, -1);
  hb4->pack_start (*ppi);

  sizebox = Gtk::manage (new Gtk::VBox());

  sizecm = Gtk::manage (new Gtk::Label (M("GENERAL_NA") + " cm x " + M("GENERAL_NA") + " cm"));
  sizein = Gtk::manage (new Gtk::Label (M("GENERAL_NA") + " in x " + M("GENERAL_NA") + " in"));

  sizebox->pack_start (*sizecm, Gtk::PACK_SHRINK, 4);
  sizebox->pack_start (*Gtk::manage (new  Gtk::HSeparator()), Gtk::PACK_SHRINK, 6);
  sizebox->pack_start (*sizein, Gtk::PACK_SHRINK, 4);
  sizebox->pack_start (*Gtk::manage (new  Gtk::HSeparator()), Gtk::PACK_SHRINK, 6);
  sizebox->pack_start (*hb4, Gtk::PACK_SHRINK, 2);

  ppibox->pack_start (*sizebox, Gtk::PACK_SHRINK, 1);
  pack_start (*ppibox, Gtk::PACK_SHRINK, 0);

  ppi->set_value (300);
  // ppibox END

 /****************
 * Crop Ratio
 *****************/
  int NumberOfCropRatios = 26;    //!!! change this value when adding new crop ratios
  cropratio.resize (NumberOfCropRatios);

  cropratio[0].label  = "3:2";                     cropratio[0].value  = 3.0/2.0;
  cropratio[1].label  = "4:3";                     cropratio[1].value  = 4.0/3.0;
  cropratio[2].label  = "16:9";                    cropratio[2].value  = 16.0/9.0;
  cropratio[3].label  = "16:10";                   cropratio[3].value  = 16.0/10.0;
  cropratio[4].label  = "1:1";                     cropratio[4].value  = 1.0/1.0;
  cropratio[5].label  = "2:1";                     cropratio[5].value  = 2.0/1.0;
  cropratio[6].label  = "3:1";                     cropratio[6].value  = 3.0/1.0;
  cropratio[7].label  = "4:1";                     cropratio[7].value  = 4.0/1.0;
  cropratio[8].label  = "5:1";                     cropratio[8].value  = 5.0/1.0;
  cropratio[9].label  = "6:1";                     cropratio[9].value  = 6.0/1.0;
  cropratio[10].label = "7:1";                     cropratio[10].value = 7.0/1.0;
  cropratio[11].label = "4:5";                     cropratio[11].value = 4.0/5.0;
  cropratio[12].label = "5:7";                     cropratio[12].value = 5.0/7.0;
  cropratio[13].label = "6:7";                     cropratio[13].value = 6.0/7.0;
  cropratio[14].label = "6:17";                    cropratio[14].value = 6.0/17.0;
  cropratio[15].label = "24:65 - XPAN";            cropratio[15].value = 24.0/65.0;
  cropratio[16].label = "1.414 - DIN EN ISO 216";  cropratio[16].value = 1.414;
  cropratio[17].label = "3.5:5";                   cropratio[17].value = 3.5/5.0;
  cropratio[18].label = "8.5:11 - US Letter";      cropratio[18].value = 8.5/11.0;
  cropratio[19].label = "9.5:12";                  cropratio[19].value = 9.5/12.0;
  cropratio[20].label = "10:12";                   cropratio[20].value = 10.0/12.0;
  cropratio[21].label = "11:14";                   cropratio[21].value = 11.0/14.0;
  cropratio[22].label = "11:17 - Tabloid";         cropratio[22].value = 11.0/17.0;
  cropratio[23].label = "13:19";                   cropratio[23].value = 13.0/19.0;
  cropratio[24].label = "17:22";                   cropratio[24].value = 17.0/22.0;
  cropratio[25].label = "45:35 - ePassport";       cropratio[25].value = 45.0/35.0;



  // populate the combobox
  for (int i=0; i<NumberOfCropRatios; i++) {
     ratio->append_text (cropratio[i].label);
  }

  ratio->set_active (0);

  orientation->append_text (M("GENERAL_LANDSCAPE"));
  orientation->append_text (M("GENERAL_PORTRAIT"));
  orientation->set_active (0);

  guide->append_text (M("TP_CROP_GTNONE"));
  guide->append_text (M("TP_CROP_GTFRAME"));
  guide->append_text (M("TP_CROP_GTRULETHIRDS"));
  guide->append_text (M("TP_CROP_GTDIAGONALS"));
  guide->append_text (M("TP_CROP_GTHARMMEANS1"));
  guide->append_text (M("TP_CROP_GTHARMMEANS2"));
  guide->append_text (M("TP_CROP_GTHARMMEANS3"));
  guide->append_text (M("TP_CROP_GTHARMMEANS4"));
  guide->append_text (M("TP_CROP_GTGRID"));
  guide->append_text (M("TP_CROP_GTEPASSPORT"));
  guide->set_active (0);

  w->set_range (0, maxw);
  h->set_range (0, maxh);
  x->set_range (0, maxw);
  y->set_range (0, maxh);

  x->set_digits (0);
  x->set_increments (1,100);
  x->set_value (0);

  y->set_digits (0);
  y->set_increments (1,100);
  y->set_value (0);

  w->set_digits (0);
  w->set_increments (1,100);
  w->set_value (200);

  h->set_digits (0);
  h->set_increments (1,100);
  h->set_value (200);

  ppi->set_digits (0);
  ppi->set_increments (1,100);
  ppi->set_range (50, 12000);
  ppi->set_value (300);

  xconn = x->signal_value_changed().connect ( sigc::mem_fun(*this, &Crop::positionChanged), true);
  yconn = y->signal_value_changed().connect ( sigc::mem_fun(*this, &Crop::positionChanged), true);
  wconn = w->signal_value_changed().connect ( sigc::mem_fun(*this, &Crop::widthChanged), true);
  hconn = h->signal_value_changed().connect ( sigc::mem_fun(*this, &Crop::heightChanged), true);
  econn = enabled->signal_toggled().connect( sigc::mem_fun(*this, &Crop::enabledChanged) );
  fconn = fixr->signal_toggled().connect( sigc::mem_fun(*this, &Crop::ratioFixedChanged) );
  rconn = ratio->signal_changed().connect( sigc::mem_fun(*this, &Crop::ratioChanged) );
  oconn = orientation->signal_changed().connect( sigc::mem_fun(*this, &Crop::ratioChanged) );
  gconn = guide->signal_changed().connect( sigc::mem_fun(*this, &Crop::notifyListener) );
  selectCrop->signal_pressed().connect( sigc::mem_fun(*this, &Crop::selectPressed) );
  ppi->signal_value_changed().connect( sigc::mem_fun(*this, &Crop::refreshSize) );

  nx = ny = nw = nh = 0;
  lastRotationDeg = 0;
  show_all ();
}

void Crop::writeOptions () {

    options.cropPPI = (int)ppi->get_value ();
}

void Crop::readOptions () {

    disableListener ();

    ppi->set_value (options.cropPPI);

    enableListener ();
}

void Crop::read (const ProcParams* pp, const ParamsEdited* pedited) {

    disableListener ();

    xconn.block (true);
    yconn.block (true);
    wconn.block (true);
    hconn.block (true);
    rconn.block (true);
    fconn.block (true);
    econn.block (true);
    oconn.block (true);
    gconn.block (true);

    enabled->set_active (pp->crop.enabled);

    // check if the new values are larger than the maximum
    double tmp, maxw, maxh;
    w->get_range (tmp, maxw);
    h->get_range (tmp, maxh);
    if (pp->crop.x + pp->crop.w > (int)maxw || pp->crop.y + pp->crop.h > (int)maxh)
        setDimensions (pp->crop.x + pp->crop.w, pp->crop.y + pp->crop.h);

    ratio->set_active_text (pp->crop.ratio);
    fixr->set_active (pp->crop.fixratio);

    const bool flip_orientation = pp->crop.fixratio && cropratio[ratio->get_active_row_number()].value < 1.0;
    if (pp->crop.orientation == "Landscape")
        orientation->set_active (flip_orientation ? 1 : 0);
    else if (pp->crop.orientation == "Portrait")
        orientation->set_active (flip_orientation ? 0 : 1);

    if (pp->crop.guide == "None")
        guide->set_active (0);
    else if (pp->crop.guide == "Frame")
        guide->set_active (1);
    else if (pp->crop.guide == "Rule of thirds")
        guide->set_active (2);
    else if (pp->crop.guide == "Rule of diagonals")
        guide->set_active (3);
    else if (pp->crop.guide == "Harmonic means 1")
        guide->set_active (4);
    else if (pp->crop.guide == "Harmonic means 2")
        guide->set_active (5);
    else if (pp->crop.guide == "Harmonic means 3")
        guide->set_active (6);
    else if (pp->crop.guide == "Harmonic means 4")
        guide->set_active (7);
    else if (pp->crop.guide == "Grid")
        guide->set_active (8);
    else if (pp->crop.guide == "ePassport")
        guide->set_active (9);

    x->set_value (pp->crop.x);
    y->set_value (pp->crop.y);
    w->set_value (pp->crop.w);
    h->set_value (pp->crop.h);

    nx = pp->crop.x;
    ny = pp->crop.y;
    nw = pp->crop.w;
    nh = pp->crop.h;

    lastRotationDeg = pp->coarse.rotate;

    wDirty = false;
    hDirty = false;
    xDirty = false;
    yDirty = false;

    if (pedited) {
        wDirty = pedited->crop.w;
        hDirty = pedited->crop.h;
        xDirty = pedited->crop.x;
        yDirty = pedited->crop.y;
        if (!pedited->crop.ratio)
            ratio->set_active_text (M("GENERAL_UNCHANGED"));
        if (!pedited->crop.orientation)
            orientation->set_active_text (M("GENERAL_UNCHANGED"));
        if (!pedited->crop.guide)
            guide->set_active_text (M("GENERAL_UNCHANGED"));
        enabled->set_inconsistent (!pedited->crop.enabled);
        fixr->set_inconsistent (!pedited->crop.fixratio);
    }

    lastEnabled = pp->crop.enabled;
    lastFixRatio = pp->crop.fixratio;

    xconn.block (false);
    yconn.block (false);
    wconn.block (false);
    hconn.block (false);
    rconn.block (false);
    fconn.block (false);
    econn.block (false);
    oconn.block (false);
    gconn.block (false);

    enableListener ();
}

void Crop::write (ProcParams* pp, ParamsEdited* pedited) {

  pp->crop.enabled = enabled->get_active ();
  pp->crop.x = nx;
  pp->crop.y = ny;
  pp->crop.w = nw;
  pp->crop.h = nh;
  pp->crop.fixratio = fixr->get_active ();
  pp->crop.ratio = ratio->get_active_text ();

  // for historical reasons we store orientation different if ratio is written as 2:3 instead of 3:2, but in GUI 'landscape' is always long side horizontal regardless of the ratio is written short or long side first.
  const bool flip_orientation = fixr->get_active() && cropratio[ratio->get_active_row_number()].value < 1.0;
  if (orientation->get_active_row_number()==0)
      pp->crop.orientation = flip_orientation ? "Portrait" : "Landscape";
  else if (orientation->get_active_row_number()==1)
      pp->crop.orientation = flip_orientation ? "Landscape" : "Portrait";

  if (guide->get_active_row_number()==0)
    pp->crop.guide = "None";
  else if (guide->get_active_row_number()==1)
    pp->crop.guide = "Frame";
  else if (guide->get_active_row_number()==2)
    pp->crop.guide = "Rule of thirds";
  else if (guide->get_active_row_number()==3)
    pp->crop.guide = "Rule of diagonals";
  else if (guide->get_active_row_number()==4)
    pp->crop.guide = "Harmonic means 1";
  else if (guide->get_active_row_number()==5)
    pp->crop.guide = "Harmonic means 2";
  else if (guide->get_active_row_number()==6)
    pp->crop.guide = "Harmonic means 3";
  else if (guide->get_active_row_number()==7)
    pp->crop.guide = "Harmonic means 4";
  else if (guide->get_active_row_number()==8)
    pp->crop.guide = "Grid";
  else if (guide->get_active_row_number()==9)
    pp->crop.guide = "ePassport";

    if (pedited) {
        pedited->crop.enabled       = !enabled->get_inconsistent();
        pedited->crop.ratio         = ratio->get_active_text() != M("GENERAL_UNCHANGED");
        pedited->crop.orientation   = orientation->get_active_text() != M("GENERAL_UNCHANGED");
        pedited->crop.guide         = guide->get_active_text() != M("GENERAL_UNCHANGED");
        pedited->crop.fixratio      = !fixr->get_inconsistent();
        pedited->crop.w             = wDirty;
        pedited->crop.h             = hDirty;
        pedited->crop.x             = xDirty;
        pedited->crop.y             = yDirty;
    }

}

void Crop::trim (ProcParams* pp, int ow, int oh) {

	int xmin = pp->crop.x;
	int ymin = pp->crop.y;

	if (xmin > ow || ymin > oh) {
		// the crop is completely out of the image, so we disable the crop
		pp->crop.enabled = false;
		// and we set the values to the defaults
		pp->crop.x = 0;
		pp->crop.y = 0;
		pp->crop.w = ow;
		pp->crop.h = oh;
		// the ratio is now not guaranteed, so we set it off
		pp->crop.fixratio = false;
	}
	else {
		bool unsetRatio = false;
		if ((xmin + pp->crop.w) > ow) {
			// crop overflow in the width dimension ; we trim it
			pp->crop.w = ow-xmin;
			unsetRatio = true;
		}
		if ((ymin + pp->crop.h) > oh) {
			// crop overflow in the height dimension ; we trim it
			pp->crop.h = oh-ymin;
			unsetRatio = true;
		}
		if (unsetRatio) {
			// the ratio is certainly not respected anymore, so we set it off
			pp->crop.fixratio = false;
		}
	}
}

bool Crop::inImageArea (int x, int y) {
	return x>=0 && x<maxw && y>=0 && y<maxh;
}

void Crop::selectPressed () {

  if (clistener)
    clistener->cropSelectRequested ();
}

void Crop::notifyListener () {

    if (listener && enabled->get_active ())
        if (nw == 1 && nh == 1) {
            econn.block (true);
            enabled->set_active (false);
            econn.block (false);
            nx = (int)x->get_value ();
            ny = (int)x->get_value ();
            nw = (int)w->get_value ();
            nh = (int)h->get_value ();
            listener->panelChanged (EvCrop, M("GENERAL_DISABLED"));
        }
        else
            listener->panelChanged (EvCrop, Glib::ustring::compose ("%1=%2, %3=%4\n%5=%6, %7=%8", M("TP_CROP_X"), nx, M("TP_CROP_Y"), ny, M("TP_CROP_W"), nw, M("TP_CROP_H"), nh));
}

void Crop::enabledChanged () {

    if (batchMode) {
        if (enabled->get_inconsistent()) {
            enabled->set_inconsistent (false);
            econn.block (true);
            enabled->set_active (false);
            econn.block (false);
        }
        else if (lastEnabled)
            enabled->set_inconsistent (true);

        lastEnabled = enabled->get_active ();
    }

    if (listener) {
        if (enabled->get_active ())
            listener->panelChanged (EvCrop, Glib::ustring::compose ("%1=%2, %3=%4\n%5=%6, %7=%8", M("TP_CROP_X"), nx, M("TP_CROP_Y"), ny, M("TP_CROP_W"), nw, M("TP_CROP_H"), nh));
        else
            listener->panelChanged (EvCrop, M("GENERAL_DISABLED"));
    }
}

int notifyListenerUI (void* data) {
    GThreadLock lock; // All GUI acces from idle_add callbacks or separate thread HAVE to be protected
    (static_cast<Crop*>(data))->notifyListener ();
    return 0;
}

int refreshSpinsUI (void* data) {
    GThreadLock lock; // All GUI acces from idle_add callbacks or separate thread HAVE to be protected
    RefreshSpinHelper* rsh = static_cast<RefreshSpinHelper*>(data);
    rsh->crop->refreshSpins (rsh->notify);
    delete rsh;
    return 0;
}

void Crop::hFlipCrop () {

    nx = maxw - nx - nw;
    g_idle_add (refreshSpinsUI, new RefreshSpinHelper (this, false));
}

void Crop::vFlipCrop () {

    ny = maxh - ny - nh;
    g_idle_add (refreshSpinsUI, new RefreshSpinHelper (this, false));
}

void Crop::rotateCrop (int deg, bool hflip, bool vflip) {

	int rotation = (360+deg-lastRotationDeg)%360;
	if((hflip != vflip) && ((rotation%180)==90))
		rotation = (rotation + 180)%360;
	int tmp;
	switch (rotation) {
		case 90:
			tmp = nx;
			nx = maxh - ny - nh;
			ny = tmp;
			tmp = nw;
			nw = nh;
			nh = tmp;
			break;
		case 270:
			tmp = ny;
			ny = maxw - nx - nw;
			nx = tmp;
			tmp = nw;
			nw = nh;
			nh = tmp;
			break;
		case 180:
			nx = maxw - nx - nw;
			ny = maxh - ny - nh;
			break;
	}
    lastRotationDeg = deg;
    g_idle_add (refreshSpinsUI, new RefreshSpinHelper (this, false));
}

void Crop::positionChanged () {

    xDirty = true;
    yDirty = true;

    int X = (int)x->get_value ();
    int Y = (int)y->get_value ();
    int W = nw;
    int H = nh;
    cropMoved (X, Y, W, H);
    g_idle_add (notifyListenerUI, this);
}

void Crop::widthChanged () {

    wDirty = true;

    int X = nx;
    int Y = ny;
    int W = (int)w->get_value ();
    int H = nh;
    cropWidth2Resized (X, Y, W, H);
    g_idle_add (notifyListenerUI, this);
}

void Crop::heightChanged () {

    hDirty = true;

    int X = nx;
    int Y = ny;
    int W = nw;
    int H = (int)h->get_value ();
    cropHeight2Resized (X, Y, W, H);
    g_idle_add (notifyListenerUI, this);
}

// Fixed ratio toggle button
void Crop::ratioFixedChanged () {
    // Batch mode handling when enabling/disabling fixed crop
    if (batchMode && lastFixRatio != fixr->get_active ()) {
        if (fixr->get_inconsistent()) {
            fixr->set_inconsistent (false);
            fconn.block (true);
            fixr->set_active (false);
            fconn.block (false);
        }
        else if (lastFixRatio)
            fixr->set_inconsistent (true);
    }

    lastFixRatio = fixr->get_active ();
    adjustCropToRatio();
}

// change to orientation or ration
void Crop::ratioChanged () {
    if (!fixr->get_active ())
        fixr->set_active(true);  // will ajust ratio anyway
    else
        adjustCropToRatio();
}

// Correct current crop if it doesn't fit
void Crop::adjustCropToRatio() {
    if (fixr->get_active() && !fixr->get_inconsistent()) {

//        int W = w->get_value ();
//        int H = h->get_value ();
        int W = nw;
        int H = nh;
        int X = nx;
        int Y = ny;
        if (W>=H)
          cropWidth2Resized (X, Y, W, H);
        else
          cropHeight2Resized (X, Y, W, H);
    }

    // This will save the options
    g_idle_add (refreshSpinsUI, new RefreshSpinHelper (this, true));
}

void Crop::refreshSize () {

    if (!batchMode) {

        std::ostringstream ostrin;
        ostrin.precision (3);
    //    ostrin << h->get_value()/ppi->get_value() << " in x " << w->get_value()/ppi->get_value() << " in";;
        ostrin << nh/ppi->get_value() << " in x " << nw/ppi->get_value() << " in";;

        sizein->set_text (ostrin.str ());

        std::ostringstream ostrcm;
        ostrcm.precision (3);
    //    ostrcm << h->get_value()/ppi->get_value()*2.54 << " cm x " << w->get_value()/ppi->get_value()*2.54 << " cm";;
        ostrcm << nh/ppi->get_value()*2.54 << " cm x " << nw/ppi->get_value()*2.54 << " cm";;

        sizecm->set_text (ostrcm.str ());
    }
}

/*
 * Set the maximum dimensions of the image. This method can be called with wrong values, then
 * called with the good ones !?
 */
void Crop::setDimensions (int mw, int mh) {

  maxw = mw;
  maxh = mh;

  bool xconnWasBlocked = xconn.block (true);
  bool yconnWasBlocked = yconn.block (true);
  bool wconnWasBlocked = wconn.block (true);
  bool hconnWasBlocked = hconn.block (true);

  w->set_range (0, maxw);
  h->set_range (0, maxh);
  x->set_range (0, maxw);
  y->set_range (0, maxh);

  if (!xconnWasBlocked) xconn.block (false);
  if (!yconnWasBlocked) yconn.block (false);
  if (!wconnWasBlocked) wconn.block (false);
  if (!hconnWasBlocked) hconn.block (false);

  if (enabled->get_active()==false) {
    nx = 0;
    ny = 0;
    nw = mw;
    nh = mh;

    refreshSpins ();
  }
  refreshSize ();
}

struct setdimparams {
    Crop* crop;
    int x;
    int y;
};

int sizeChangedUI (void* data) {
    GThreadLock lock; // All GUI acces from idle_add callbacks or separate thread HAVE to be protected
    setdimparams* params = static_cast<setdimparams*>(data);
    params->crop->setDimensions (params->x, params->y);
    delete params;
    return 0;
}

void Crop::sizeChanged (int x, int y, int ow, int oh) {

    setdimparams* params = new setdimparams;
    params->x = x;
    params->y = y;
    params->crop = this;
    g_idle_add (sizeChangedUI, params);
}

bool Crop::refreshSpins (bool notify) {

  xconn.block (true);
  yconn.block (true);
  wconn.block (true);
  hconn.block (true);

  x->set_value (nx);
  y->set_value (ny);
  w->set_value (nw);
  h->set_value (nh);

  xDirty = true;
  yDirty = true;
  wDirty = true;
  hDirty = true;

  xconn.block (false);
  yconn.block (false);
  wconn.block (false);
  hconn.block (false);

  refreshSize ();
  if (notify)
    notifyListener ();

  return false;
}

void Crop::cropMoved (int &X, int &Y, int &W, int &H) {

//  W = w->get_value ();
//  H = h->get_value ();
  W = nw;
  H = nh;

  if (X+W>maxw)
    X = maxw-W;
  if (Y+H>maxh)
    Y = maxh-H;
  if (X<0)
    X = 0;
  if (Y<0)
    Y = 0;

  nx = X;
  ny = Y;
  nw = W;
  nh = H;

  g_idle_add (refreshSpinsUI, new RefreshSpinHelper (this, false));
//  Glib::signal_idle().connect (sigc::mem_fun(*this, &Crop::refreshSpins));
}

void Crop::cropWidth1Resized (int &X, int &Y, int &W, int &H) {

    int oldXR = nx + nw;
    if (W < 0) W = 0;
    if (W > oldXR) W = oldXR;
    if (fixr->get_active()) {
        double r = getRatio();
        H = (int)round(W / r);
        int Hmax = min(ny + nh, maxh - ny);
        if (H > Hmax) {
            H = Hmax;
            W = H * r;
        }
        ny = ny - (H - nh) / 2.0;
        if (ny < 0) ny = 0;
        if (ny + H > maxh) ny = maxh - H;
    }
    X = oldXR - W;
    Y = ny;
    nx = X;
    nw = W;
    nh = H;

    g_idle_add (refreshSpinsUI, new RefreshSpinHelper (this, false));
}

void Crop::cropWidth2Resized (int &X, int &Y, int &W, int &H) {

    if (W < 0) W = 0;
    if (W > maxw - nx) W = maxw - nx;
    if (fixr->get_active()) {
        double r = getRatio();
        H = (int)round(W / r);
        int Hmax = min(ny + nh, maxh - ny);
        if (H > Hmax) {
            H = Hmax;
            W = H * r;
        }
        ny = ny - (H - nh) / 2.0;
        if (ny < 0) ny = 0;
        if (ny + H > maxh) ny = maxh - H;
    }
    X = nx;
    Y = ny;
    nw = W;
    nh = H;

    g_idle_add (refreshSpinsUI, new RefreshSpinHelper (this, false));
}

void Crop::cropHeight1Resized (int &X, int &Y, int &W, int &H) {

    int oldYB = ny + nh;
    if (H < 0) H = 0;
    if (H > oldYB) H = oldYB;
    if (fixr->get_active()) {
        double r = getRatio();
        W = (int)round(H * r);
        int Wmax = min(nx + nw, maxw - nx);
        if (W > Wmax) {
            W = Wmax;
            H = W / r;
        }
        nx = nx - (W - nw) / 2.0;
        if (nx < 0) nx = 0;
        if (nx + W > maxw) nx = maxw - W;
    }
    X = nx;
    Y = oldYB - H;
    ny = Y;
    nw = W;
    nh = H;

    g_idle_add (refreshSpinsUI, new RefreshSpinHelper (this, false));
}

void Crop::cropHeight2Resized (int &X, int &Y, int &W, int &H) {

    if (H < 0) H = 0;
    if (H > maxh - ny) H = maxh - ny;
    if (fixr->get_active()) {
        double r = getRatio();
        W = (int)round(H * r);
        int Wmax = min(nx + nw, maxw - nx);
        if (W > Wmax) {
            W = Wmax;
            H = W / r;
        }
        nx = nx - (W - nw) / 2.0; // nx must be floating point to avoid drifting
        if (nx < 0) nx = 0;
        if (nx + W > maxw) nx = maxw - W;
    }
    X = nx;
    Y = ny;
    nw = W;
    nh = H;

    g_idle_add (refreshSpinsUI, new RefreshSpinHelper (this, false));
}

void Crop::cropTopLeftResized (int &X, int &Y, int &W, int &H) {

    int oldXR = nx + nw; // right side
    int oldYB = ny + nh; // bottom side
    if (W < 0) W = 0;
    if (H < 0) H = 0;
    if (W > oldXR) W = oldXR;
    if (H > oldYB) H = oldYB;
    if (fixr->get_active()) {
        double r = getRatio();
        W = (int)round(H * r);
        if (W > oldXR) {
            W = oldXR;
            H = (int)round(W / r);
        }
    }
    X = oldXR - W;
    Y = oldYB - H;
    nx = X;
    ny = Y;
    nw = W;
    nh = H;

    g_idle_add (refreshSpinsUI, new RefreshSpinHelper (this, false));
}

void Crop::cropTopRightResized (int &X, int &Y, int &W, int &H) {

    int oldYB = ny + nh;
    if (W < 0) W = 0;
    if (H < 0) H = 0;
    if (W > maxw - nx) W = maxw - nx;
    if (H > oldYB) H = oldYB;
    if (fixr->get_active()) {
        double r = getRatio();
        W = (int)round(H * r);
        if (W > maxw - nx) {
            W = maxw - nx;
            H = (int)round(W / r);
        }
    }
    X = nx;
    Y = oldYB - H;
    ny = Y;
    nw = W;
    nh = H;

    g_idle_add (refreshSpinsUI, new RefreshSpinHelper (this, false));
}

void Crop::cropBottomLeftResized (int &X, int &Y, int &W, int &H) {

    int oldXR = nx + nw;
    if (W < 0) W = 0;
    if (H < 0) H = 0;
    if (W > oldXR) W = oldXR;
    if (H > maxh - ny) H = maxh - ny;
    if (fixr->get_active()) {
        double r = getRatio();
        W = (int)round(H * r);
        if (W > oldXR) {
            W = oldXR;
            H = (int)round(W / r);
        }
    }
    X = oldXR - W;
    Y = ny;
    nx = X;
    nw = W;
    nh = H;

    g_idle_add (refreshSpinsUI, new RefreshSpinHelper (this, false));
}

void Crop::cropBottomRightResized (int &X, int &Y, int &W, int &H) {

    if (W < 0) W = 0;
    if (H < 0) H = 0;
    if (W > maxw - nx) W = maxw - nx;
    if (H > maxh - ny) H = maxh - ny;
    if (fixr->get_active()) {
        double r = getRatio();
        W = (int)round(H * r);
        if (W > maxw - nx) {
            W = maxw - nx;
            H = (int)round(W / r);
        }
    }
    X = nx;
    Y = ny;
    nw = W;
    nh = H;

    g_idle_add (refreshSpinsUI, new RefreshSpinHelper (this, false));
}

void Crop::cropInit (int &x, int &y, int &w, int &h) {

  nx = x;
  ny = y;
  nw = 1;
  nh = 1;

  w = 1; h = 1;

  econn.block (true);
  enabled->set_active (1);
  econn.block (false);
}

void Crop::cropResized (int &x, int &y, int& x2, int& y2) {

  if (x2<0)
    x2 = 0;
  if (y2<0)
    y2 = 0;
  if (x2>=maxw)
    x2 = maxw-1;
  if (y2>=maxh)
    y2 = maxh-1;

  int X, Y;
  int W;
  if (x<x2) {
    W = x2 - x + 1;
    X = x;
  }
  else {
    W = x - x2 + 1;
    X = x2;
  }
  int H;
  if (y<y2) {
    H = y2 - y + 1;
    Y = y;
  }
  else {
    H = y - y2 + 1;
    Y = y2;
  }

  if (W>maxw)
    W = maxw;
  if (H>maxh)
    H = maxh;

  if (fixr->get_active()) {
    double r = getRatio ();
    if (y<=y2) {
      int W2max = (int)round ((maxh-Y) * r);
      if (W>W2max)
        W = W2max;
    }
    else {
      int W2max = (int)round (y * r);
      if (W>W2max)
        W = W2max;
    }
    H = (int)round(W / r);
    if (x<x2)
      x2 = x + W - 1;
    else
      x2 = x - W + 1;
    if (y<y2)
      y2 = y + H - 1;
    else
      y2 = y - H + 1;
  }

  if (x<x2) {
    W = x2 - x + 1;
    X = x;
  }
  else {
    W = x - x2 + 1;
    X = x2;
  }
  if (y<y2) {
    H = y2 - y + 1;
    Y = y;
  }
  else {
    H = y - y2 + 1;
    Y = y2;
  }

  nx = X;
  ny = Y;
  nw = W;
  nh = H;

  g_idle_add (refreshSpinsUI, new RefreshSpinHelper (this, false));
}

void Crop::cropManipReady () {

  g_idle_add (notifyListenerUI, this);
}

double Crop::getRatio () {

  double r = -1.0;
  if (fixr->get_active()==false)
    return r;

  r = cropratio[ratio->get_active_row_number()].value;
  if (r < 1.0)
    r = 1.0 / r; // convert to long side first (eg 4:5 becomes 5:4)

  if (orientation->get_active_row_number()==0)
    return r;
  else
    return 1.0 / r;
}

void Crop::setBatchMode (bool batchMode) {

    ToolPanel::setBatchMode (batchMode);

    ratio->append_text (M("GENERAL_UNCHANGED"));
    orientation->append_text (M("GENERAL_UNCHANGED"));
    guide->append_text (M("GENERAL_UNCHANGED"));
    removeIfThere (this, ppibox);
}
