/*
 *  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 <https://www.gnu.org/licenses/>.
 */
#include "eventmapper.h"
#include "perspective.h"

#include "rtimage.h"

#include "../rtengine/procparams.h"

using namespace rtengine;
using namespace rtengine::procparams;

PerspCorrection::PerspCorrection () : FoldableToolPanel(this, "perspective", M("TP_PERSPECTIVE_LABEL"))
{

    auto mapper = ProcEventMapper::getInstance();
    EvPerspCamAngle = mapper->newEvent(TRANSFORM, "HISTORY_MSG_PERSP_CAM_ANGLE");
    EvPerspCamFocalLength = mapper->newEvent(TRANSFORM, "HISTORY_MSG_PERSP_CAM_FL");
    EvPerspCamShift = mapper->newEvent(TRANSFORM, "HISTORY_MSG_PERSP_CAM_SHIFT");
    EvPerspMethod = mapper->newEvent(TRANSFORM, "HISTORY_MSG_PERSP_METHOD");
    EvPerspProjAngle = mapper->newEvent(TRANSFORM, "HISTORY_MSG_PERSP_PROJ_ANGLE");
    EvPerspProjRotate = mapper->newEvent(TRANSFORM, "HISTORY_MSG_PERSP_PROJ_ROTATE");
    EvPerspProjShift = mapper->newEvent(TRANSFORM, "HISTORY_MSG_PERSP_PROJ_SHIFT");
    lens_geom_listener = nullptr;
    metadata = nullptr;

    Gtk::Image* ipersHL =   Gtk::manage (new RTImage ("perspective-horizontal-left-small.png"));
    Gtk::Image* ipersHR =   Gtk::manage (new RTImage ("perspective-horizontal-right-small.png"));
    Gtk::Image* ipersVL =   Gtk::manage (new RTImage ("perspective-vertical-bottom-small.png"));
    Gtk::Image* ipersVR =   Gtk::manage (new RTImage ("perspective-vertical-top-small.png"));

    Gtk::Image* ipers_auto_pitch = Gtk::manage (new RTImage ("perspective-vertical-bottom.png"));
    Gtk::Image* ipers_auto_yaw = Gtk::manage (new RTImage ("perspective-horizontal-left.png"));
    Gtk::Image* ipers_auto_pitch_yaw = Gtk::manage (new RTImage ("perspective-horizontal-vertical.png"));

    Gtk::Image* ipers_cam_yaw_left = Gtk::manage (new RTImage ("perspective-horizontal-left-small.png"));
    Gtk::Image* ipers_cam_yaw_right = Gtk::manage (new RTImage ("perspective-horizontal-right-small.png"));
    Gtk::Image* ipers_cam_pitch_left = Gtk::manage (new RTImage ("perspective-vertical-bottom-small.png"));
    Gtk::Image* ipers_cam_pitch_right = Gtk::manage (new RTImage ("perspective-vertical-top-small.png"));
    Gtk::Image* ipers_proj_yaw_left = Gtk::manage (new RTImage ("perspective-horizontal-left-small.png"));
    Gtk::Image* ipers_proj_yaw_right = Gtk::manage (new RTImage ("perspective-horizontal-right-small.png"));
    Gtk::Image* ipers_proj_pitch_left = Gtk::manage (new RTImage ("perspective-vertical-bottom-small.png"));
    Gtk::Image* ipers_proj_pitch_right = Gtk::manage (new RTImage ("perspective-vertical-top-small.png"));
    Gtk::Image* ipers_rotate_left = Gtk::manage(new RTImage("rotate-right-small.png"));
    Gtk::Image* ipers_rotate_right = Gtk::manage(new RTImage("rotate-left-small.png"));

    Gtk::HBox* method_hbox = Gtk::manage (new Gtk::HBox());
    Gtk::Label* method_label = Gtk::manage (new Gtk::Label (M("TP_PERSPECTIVE_METHOD") + ": "));
    method = Gtk::manage (new MyComboBoxText ());
    method->append (M("TP_PERSPECTIVE_METHOD_SIMPLE"));
    method->append (M("TP_PERSPECTIVE_METHOD_CAMERA_BASED"));
    method_hbox->pack_start(*method_label, Gtk::PACK_SHRINK);
    method_hbox->pack_start(*method);
    pack_start(*method_hbox);

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

    vert = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_VERTICAL"), -100, 100, 0.1, 0, ipersVL, ipersVR));
    vert->setAdjusterListener (this);

    horiz = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_HORIZONTAL"), -100, 100, 0.1, 0, ipersHL, ipersHR));
    horiz->setAdjusterListener (this);

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

    Gtk::Frame* camera_frame = Gtk::manage (new Gtk::Frame
            (M("TP_PERSPECTIVE_CAMERA_FRAME")));
    camera_frame->set_label_align(0.025, 0.5);

    Gtk::VBox* camera_vbox = Gtk::manage (new Gtk::VBox());

    camera_focal_length = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_CAMERA_FOCAL_LENGTH"), 0.5, 2000, 0.01, 24));
    camera_focal_length->setAdjusterListener (this);

    camera_crop_factor = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_CAMERA_CROP_FACTOR"), 0.1, 30, 0.01, 1));
    camera_crop_factor->setAdjusterListener (this);

    camera_shift_horiz = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_CAMERA_SHIFT_HORIZONTAL"), -50, 50, 0.01, 0));
    camera_shift_horiz->setAdjusterListener (this);

    camera_shift_vert = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_CAMERA_SHIFT_VERTICAL"), -50, 50, 0.01, 0));
    camera_shift_vert->setAdjusterListener (this);

    camera_roll = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_CAMERA_ROLL"), -45, 45, 0.01, 0));
    camera_roll->setAdjusterListener (this);

    camera_pitch = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_CAMERA_PITCH"),
                -60, 60, 0.1, 0, ipers_cam_pitch_left, ipers_cam_pitch_right));
    camera_pitch->setAdjusterListener (this);

    camera_yaw = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_CAMERA_YAW"),
                -60, 60, 0.1, 0, ipers_cam_yaw_left, ipers_cam_yaw_right));
    camera_yaw->setAdjusterListener (this);

    auto_pitch = Gtk::manage (new Gtk::Button ());
    auto_pitch->set_image(*ipers_auto_pitch);
    auto_pitch->signal_pressed().connect( sigc::bind(sigc::mem_fun(*this, &PerspCorrection::autoCorrectionPressed), auto_pitch) );

    auto_yaw = Gtk::manage (new Gtk::Button ());
    auto_yaw->set_image(*ipers_auto_yaw);
    auto_yaw->signal_pressed().connect( sigc::bind(sigc::mem_fun(*this, &PerspCorrection::autoCorrectionPressed), auto_yaw) );

    auto_pitch_yaw = Gtk::manage (new Gtk::Button ());
    auto_pitch_yaw->set_image(*ipers_auto_pitch_yaw);
    auto_pitch_yaw->signal_pressed().connect( sigc::bind(sigc::mem_fun(*this, &PerspCorrection::autoCorrectionPressed), auto_pitch_yaw) );

    Gtk::HBox* auto_hbox = Gtk::manage (new Gtk::HBox());
    Gtk::Label* auto_label = Gtk::manage (new Gtk::Label (M("GENERAL_AUTO") + ": "));
    auto_hbox->pack_start(*auto_label, Gtk::PACK_SHRINK);

    Gtk::Frame* pca_frame = Gtk::manage (new Gtk::Frame
            (M("TP_PERSPECTIVE_POST_CORRECTION_ADJUSTMENT_FRAME")));
    pca_frame->set_label_align(0.025, 0.5);

    Gtk::VBox* pca_vbox = Gtk::manage (new Gtk::VBox());

    projection_shift_horiz = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_PROJECTION_SHIFT_HORIZONTAL"), -100, 100, 0.01, 0));
    projection_shift_horiz->setAdjusterListener (this);

    projection_shift_vert = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_PROJECTION_SHIFT_VERTICAL"), -100, 100, 0.01, 0));
    projection_shift_vert->setAdjusterListener (this);

    projection_rotate = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_PROJECTION_ROTATE"), -45, 45, 0.01, 0, ipers_rotate_left, ipers_rotate_right));
    projection_rotate->setAdjusterListener (this);

    Gtk::Frame* recovery_frame = Gtk::manage (new Gtk::Frame
            (M("TP_PERSPECTIVE_RECOVERY_FRAME")));
    recovery_frame->set_label_align(0.025, 0.5);

    Gtk::VBox* recovery_vbox = Gtk::manage (new Gtk::VBox());

    projection_pitch = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_PROJECTION_PITCH"), -60, 60, 0.1, 0, ipers_proj_pitch_left, ipers_proj_pitch_right));
    projection_pitch->setAdjusterListener (this);

    projection_yaw = Gtk::manage (new Adjuster (M("TP_PERSPECTIVE_PROJECTION_YAW"), -60, 60, 0.1, 0, ipers_proj_yaw_left, ipers_proj_yaw_right));
    projection_yaw->setAdjusterListener (this);

    simple->pack_start (*horiz);
    simple->pack_start (*vert);

    auto_hbox->pack_start (*auto_pitch);
    auto_hbox->pack_start (*auto_yaw);
    auto_hbox->pack_start (*auto_pitch_yaw);

    camera_vbox->pack_start (*camera_focal_length);
    camera_vbox->pack_start (*camera_crop_factor);
    camera_vbox->pack_start (*camera_shift_horiz);
    camera_vbox->pack_start (*camera_shift_vert);
    camera_vbox->pack_start (*camera_roll);
    camera_vbox->pack_start (*camera_pitch);
    camera_vbox->pack_start (*camera_yaw);
    camera_vbox->pack_start (*auto_hbox);
    camera_frame->add(*camera_vbox);
    camera_based->pack_start(*camera_frame);

    pca_vbox->pack_start (*projection_shift_horiz);
    pca_vbox->pack_start (*projection_shift_vert);
    pca_vbox->pack_start (*projection_rotate);
    pca_frame->add(*pca_vbox);
    camera_based->pack_start(*pca_frame);

    recovery_vbox->pack_start (*projection_yaw);
    recovery_vbox->pack_start (*projection_pitch);
    recovery_frame->add(*recovery_vbox);
    camera_based->pack_start(*recovery_frame);

    pack_start(*simple);
    pack_start(*camera_based);

    horiz->setLogScale(2, 0);
    vert->setLogScale(2, 0);
    camera_focal_length->setLogScale(4000, 0.5);
    camera_crop_factor->setLogScale(300, 0.1);

    method->signal_changed().connect(sigc::mem_fun(*this, &PerspCorrection::methodChanged));

    show_all();
}

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

    disableListener ();

    if (pedited) {
        horiz->setEditedState (pedited->perspective.horizontal ? Edited : UnEdited);
        vert->setEditedState (pedited->perspective.vertical ? Edited : UnEdited);
        camera_crop_factor->setEditedState (pedited->perspective.camera_crop_factor ? Edited : UnEdited);
        camera_focal_length->setEditedState (pedited->perspective.camera_focal_length ? Edited : UnEdited);
        camera_pitch->setEditedState (pedited->perspective.camera_pitch ? Edited : UnEdited);
        camera_roll->setEditedState (pedited->perspective.camera_roll ? Edited : UnEdited);
        camera_shift_horiz->setEditedState (pedited->perspective.camera_shift_horiz ? Edited : UnEdited);
        camera_shift_vert->setEditedState (pedited->perspective.camera_shift_vert ? Edited : UnEdited);
        camera_yaw->setEditedState (pedited->perspective.camera_yaw ? Edited : UnEdited);
        projection_pitch->setEditedState (pedited->perspective.projection_pitch ? Edited : UnEdited);
        projection_rotate->setEditedState (pedited->perspective.projection_rotate ? Edited : UnEdited);
        projection_shift_horiz->setEditedState (pedited->perspective.projection_shift_horiz ? Edited : UnEdited);
        projection_shift_vert->setEditedState (pedited->perspective.projection_shift_vert ? Edited : UnEdited);
        projection_yaw->setEditedState (pedited->perspective.projection_yaw ? Edited : UnEdited);
    }

    horiz->setValue (pp->perspective.horizontal);
    vert->setValue (pp->perspective.vertical);
    setFocalLengthValue (pp, metadata);
    camera_pitch->setValue (pp->perspective.camera_pitch);
    camera_roll->setValue (pp->perspective.camera_roll);
    camera_shift_horiz->setValue (pp->perspective.camera_shift_horiz);
    camera_shift_vert->setValue (pp->perspective.camera_shift_vert);
    camera_yaw->setValue (pp->perspective.camera_yaw);
    projection_pitch->setValue (pp->perspective.projection_pitch);
    projection_rotate->setValue (pp->perspective.projection_rotate);
    projection_shift_horiz->setValue (pp->perspective.projection_shift_horiz);
    projection_shift_vert->setValue (pp->perspective.projection_shift_vert);
    projection_yaw->setValue (pp->perspective.projection_yaw);

    if (pedited && !pedited->perspective.method) {
        method->set_active (2);
    } else if (pp->perspective.method == "simple") {
        method->set_active (0);
    } else if (pp->perspective.method == "camera_based") {
        method->set_active (1);
    }

    enableListener ();
}

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

    pp->perspective.horizontal  = horiz->getValue ();
    pp->perspective.vertical = vert->getValue ();
    pp->perspective.camera_crop_factor= camera_crop_factor->getValue ();
    pp->perspective.camera_focal_length = camera_focal_length->getValue ();
    pp->perspective.camera_pitch = camera_pitch->getValue ();
    pp->perspective.camera_roll = camera_roll->getValue ();
    pp->perspective.camera_shift_horiz = camera_shift_horiz->getValue ();
    pp->perspective.camera_shift_vert = camera_shift_vert->getValue ();
    pp->perspective.camera_yaw = camera_yaw->getValue ();
    pp->perspective.projection_pitch = projection_pitch->getValue ();
    pp->perspective.projection_rotate = projection_rotate->getValue ();
    pp->perspective.projection_shift_horiz = projection_shift_horiz->getValue ();
    pp->perspective.projection_shift_vert = projection_shift_vert->getValue ();
    pp->perspective.projection_yaw = projection_yaw->getValue ();

    if (method->get_active_row_number() == 0) {
        pp->perspective.method = "simple";
    } else if (method->get_active_row_number() == 1) {
        pp->perspective.method = "camera_based";
    }

    if (pedited) {
        pedited->perspective.method =  method->get_active_row_number() != 2;
        pedited->perspective.horizontal = horiz->getEditedState ();
        pedited->perspective.vertical = vert->getEditedState ();
        pedited->perspective.camera_crop_factor= camera_crop_factor->getEditedState ();
        pedited->perspective.camera_focal_length = camera_focal_length->getEditedState ();
        pedited->perspective.camera_pitch = camera_pitch->getEditedState();
        pedited->perspective.camera_roll = camera_roll->getEditedState();
        pedited->perspective.camera_shift_horiz = camera_shift_horiz->getEditedState();
        pedited->perspective.camera_shift_vert = camera_shift_vert->getEditedState();
        pedited->perspective.camera_yaw = camera_yaw->getEditedState();
        pedited->perspective.projection_pitch = projection_pitch->getEditedState();
        pedited->perspective.projection_rotate = projection_rotate->getEditedState();
        pedited->perspective.projection_shift_horiz = projection_shift_horiz->getEditedState();
        pedited->perspective.projection_shift_vert = projection_shift_vert->getEditedState();
        pedited->perspective.projection_yaw = projection_yaw->getEditedState();
    }
}

void PerspCorrection::setDefaults (const ProcParams* defParams, const ParamsEdited* pedited)
{

    horiz->setDefault (defParams->perspective.horizontal);
    vert->setDefault (defParams->perspective.vertical);
    camera_crop_factor->setDefault (defParams->perspective.camera_crop_factor);
    camera_focal_length->setDefault (defParams->perspective.camera_focal_length);
    camera_pitch->setDefault (defParams->perspective.camera_pitch);
    camera_roll->setDefault (defParams->perspective.camera_roll);
    camera_shift_horiz->setDefault (defParams->perspective.camera_shift_horiz);
    camera_shift_vert->setDefault (defParams->perspective.camera_shift_vert);
    camera_yaw->setDefault (defParams->perspective.camera_yaw);
    projection_pitch->setDefault (defParams->perspective.projection_pitch);
    projection_rotate->setDefault (defParams->perspective.projection_rotate);
    projection_shift_horiz->setDefault (defParams->perspective.projection_shift_horiz);
    projection_shift_vert->setDefault (defParams->perspective.projection_shift_vert);
    projection_yaw->setDefault (defParams->perspective.projection_yaw);

    if (pedited) {
        horiz->setDefaultEditedState (pedited->perspective.horizontal ? Edited : UnEdited);
        vert->setDefaultEditedState (pedited->perspective.vertical ? Edited : UnEdited);
        camera_crop_factor->setDefaultEditedState (pedited->perspective.camera_crop_factor ? Edited : UnEdited);
        camera_focal_length->setDefaultEditedState (pedited->perspective.camera_focal_length ? Edited : UnEdited);
        camera_pitch->setDefaultEditedState (pedited->perspective.camera_pitch ? Edited : UnEdited);
        camera_roll->setDefaultEditedState (pedited->perspective.camera_roll ? Edited : UnEdited);
        camera_shift_horiz->setDefaultEditedState (pedited->perspective.camera_shift_horiz ? Edited : UnEdited);
        camera_shift_vert->setDefaultEditedState (pedited->perspective.camera_shift_vert ? Edited : UnEdited);
        camera_yaw->setDefaultEditedState (pedited->perspective.camera_yaw ? Edited : UnEdited);
        projection_pitch->setDefaultEditedState (pedited->perspective.projection_pitch ? Edited : UnEdited);
        projection_rotate->setDefaultEditedState (pedited->perspective.projection_rotate ? Edited : UnEdited);
        projection_shift_horiz->setDefaultEditedState (pedited->perspective.projection_shift_horiz ? Edited : UnEdited);
        projection_shift_vert->setDefaultEditedState (pedited->perspective.projection_shift_vert ? Edited : UnEdited);
        projection_yaw->setDefaultEditedState (pedited->perspective.projection_yaw ? Edited : UnEdited);
    } else {
        horiz->setDefaultEditedState (Irrelevant);
        vert->setDefaultEditedState (Irrelevant);
        camera_crop_factor->setDefaultEditedState (Irrelevant);
        camera_focal_length->setDefaultEditedState (Irrelevant);
        camera_pitch->setDefaultEditedState (Irrelevant);
        camera_roll->setDefaultEditedState (Irrelevant);
        camera_shift_horiz->setDefaultEditedState (Irrelevant);
        camera_shift_vert->setDefaultEditedState (Irrelevant);
        camera_yaw->setDefaultEditedState (Irrelevant);
        projection_pitch->setDefaultEditedState (Irrelevant);
        projection_rotate->setDefaultEditedState (Irrelevant);
        projection_shift_horiz->setDefaultEditedState (Irrelevant);
        projection_shift_vert->setDefaultEditedState (Irrelevant);
        projection_yaw->setDefaultEditedState (Irrelevant);
    }
}

void PerspCorrection::adjusterChanged(Adjuster* a, double newval)
{
    if (listener) {
        if (a == horiz || a == vert) {
            listener->panelChanged (EvPerspCorr,
                    Glib::ustring::compose("%1=%2\n%3=%4",
                        M("TP_PERSPECTIVE_HORIZONTAL"),
                        horiz->getValue(),
                        M("TP_PERSPECTIVE_VERTICAL"),
                        vert->getValue()));
        } else if (a == camera_focal_length || a == camera_crop_factor) {
            listener->panelChanged (EvPerspCamFocalLength,
                    Glib::ustring::compose("%1=%2\n%3=%4",
                        M("TP_PERSPECTIVE_CAMERA_FOCAL_LENGTH"),
                        camera_focal_length->getValue(),
                        M("TP_PERSPECTIVE_CAMERA_CROP_FACTOR"),
                        camera_crop_factor->getValue()));
        } else if (a == camera_shift_horiz || a == camera_shift_vert) {
            listener->panelChanged (EvPerspCamShift,
                    Glib::ustring::compose("%1=%2\n%3=%4",
                        M("TP_PERSPECTIVE_CAMERA_SHIFT_HORIZONTAL"),
                        camera_shift_horiz->getValue(),
                        M("TP_PERSPECTIVE_CAMERA_SHIFT_VERTICAL"),
                        camera_shift_vert->getValue()));
        } else if (a == camera_pitch || a == camera_roll|| a == camera_yaw) {
            listener->panelChanged (EvPerspCamAngle,
                    Glib::ustring::compose("%1=%2\n%3=%4\n%5=%6",
                        M("TP_PERSPECTIVE_CAMERA_ROLL"),
                        camera_roll->getValue(),
                        M("TP_PERSPECTIVE_CAMERA_YAW"),
                        camera_yaw->getValue(),
                        M("TP_PERSPECTIVE_CAMERA_PITCH"),
                        camera_pitch->getValue()));
        } else if (a == projection_shift_horiz || a == projection_shift_vert) {
            listener->panelChanged (EvPerspProjShift,
                    Glib::ustring::compose("%1=%2\n%3=%4",
                        M("TP_PERSPECTIVE_PROJECTION_SHIFT_HORIZONTAL"),
                        projection_shift_horiz->getValue(),
                        M("TP_PERSPECTIVE_PROJECTION_SHIFT_VERTICAL"),
                        projection_shift_vert->getValue()));
        } else if (a == projection_rotate) {
            listener->panelChanged (EvPerspProjRotate,
                    Glib::ustring::format(projection_rotate->getValue()));
        } else if (a == projection_pitch || a == projection_yaw) {
            listener->panelChanged (EvPerspProjAngle,
                    Glib::ustring::compose("%1=%2\n%3=%4",
                        M("TP_PERSPECTIVE_PROJECTION_PITCH"),
                        projection_pitch->getValue(),
                        M("TP_PERSPECTIVE_PROJECTION_YAW"),
                        projection_yaw->getValue()));
        }
    }
}

void PerspCorrection::autoCorrectionPressed(Gtk::Button* b)
{
    if (!lens_geom_listener) {
        return;
    }

    double rot = 0;
    double pitch = 0;
    double yaw = 0;

    if (b == auto_pitch) {
        lens_geom_listener->autoPerspRequested(true, false, rot, pitch, yaw);
    } else if (b == auto_yaw) {
        lens_geom_listener->autoPerspRequested(false, true, rot, pitch, yaw);
    } else if (b == auto_pitch_yaw) {
        lens_geom_listener->autoPerspRequested(true, true, rot, pitch, yaw);
    }

    disableListener();
    camera_pitch->setValue(pitch);
    camera_roll->setValue(rot);
    camera_yaw->setValue(yaw);
    enableListener();

    adjusterChanged(camera_pitch, pitch);
}

void PerspCorrection::methodChanged (void)
{

    if (!batchMode) {
        removeIfThere (this, simple, false);
        removeIfThere (this, camera_based, false);

        if (method->get_active_row_number() == 0) {
            pack_start (*simple);
        } else if (method->get_active_row_number() == 1) {
            pack_start (*camera_based);
        }
    }

    if (listener) {
        listener->panelChanged (EvPerspMethod, method->get_active_text ());
    }

}

void PerspCorrection::setAdjusterBehavior (bool badd, bool camera_focal_length_add, bool camera_shift_add, bool camera_angle_add, bool projection_angle_add, bool projection_shift_add, bool projection_rotate_add)
{

    horiz->setAddMode(badd);
    vert->setAddMode(badd);
    camera_crop_factor->setAddMode(camera_focal_length_add);
    camera_focal_length->setAddMode(camera_focal_length_add);
    camera_pitch->setAddMode(camera_angle_add);
    camera_roll->setAddMode(camera_angle_add);
    camera_shift_horiz->setAddMode(camera_shift_add);
    camera_shift_vert->setAddMode(camera_shift_add);
    camera_yaw->setAddMode(camera_angle_add);
    projection_pitch->setAddMode(projection_angle_add);
    projection_rotate->setAddMode(projection_rotate_add);
    projection_shift_horiz->setAddMode(projection_shift_add);
    projection_shift_vert->setAddMode(projection_shift_add);
    projection_yaw->setAddMode(projection_angle_add);
}

void PerspCorrection::setMetadata (const rtengine::FramesMetaData* metadata)
{
    this->metadata = metadata;
}

void PerspCorrection::trimValues (rtengine::procparams::ProcParams* pp)
{

    horiz->trimValue(pp->perspective.horizontal);
    vert->trimValue(pp->perspective.vertical);
    camera_crop_factor->trimValue(pp->perspective.camera_crop_factor);
    camera_focal_length->trimValue(pp->perspective.camera_focal_length);
    camera_pitch->trimValue(pp->perspective.camera_pitch);
    camera_roll->trimValue(pp->perspective.camera_roll);
    camera_shift_horiz->trimValue(pp->perspective.camera_shift_horiz);
    camera_shift_vert->trimValue(pp->perspective.camera_shift_vert);
    camera_yaw->trimValue(pp->perspective.camera_yaw);
    projection_pitch->trimValue(pp->perspective.projection_pitch);
    projection_rotate->trimValue(pp->perspective.projection_rotate);
    projection_shift_horiz->trimValue(pp->perspective.projection_shift_horiz);
    projection_shift_vert->trimValue(pp->perspective.projection_shift_vert);
    projection_yaw->trimValue(pp->perspective.projection_yaw);
}

void PerspCorrection::setBatchMode (bool batchMode)
{

    ToolPanel::setBatchMode (batchMode);
    horiz->showEditedCB ();
    vert->showEditedCB ();
    camera_crop_factor->showEditedCB ();
    camera_focal_length->showEditedCB ();
    camera_pitch->showEditedCB ();
    camera_roll->showEditedCB ();
    camera_shift_horiz->showEditedCB ();
    camera_shift_vert->showEditedCB ();
    camera_yaw->showEditedCB ();
    projection_pitch->showEditedCB ();
    projection_rotate->showEditedCB ();
    projection_shift_horiz->showEditedCB ();
    projection_shift_vert->showEditedCB ();
    projection_yaw->showEditedCB ();

    auto_pitch->set_sensitive(false);
    auto_yaw->set_sensitive(false);
    auto_pitch_yaw->set_sensitive(false);

    method->append (M("GENERAL_UNCHANGED"));
}

void PerspCorrection::setFocalLengthValue (const ProcParams* pparams, const FramesMetaData* metadata)
{
    const double pp_crop_factor = pparams->perspective.camera_crop_factor;
    const double pp_focal_length = pparams->perspective.camera_focal_length;
    double default_crop_factor = 1.0;
    double default_focal_length = 24.0;

    // Defaults from metadata.
    if (metadata && (pp_crop_factor <= 0 || pp_focal_length <= 0)) {
        const double fl = metadata->getFocalLen();
        const double fl35 = metadata->getFocalLen35mm();

        if (fl <= 0) {
            if (fl35 <= 0) {
                // No focal length data.
            } else {
                // 35mm focal length available.
                default_focal_length = fl35;
            }
        } else {
            if (fl35 <= 0) {
                // Focal length available.
                default_focal_length = fl;
            } else {
                // Focal length and 35mm equivalent available.
                default_focal_length = fl;
                default_crop_factor = fl35 / fl;
            }
        }
    }

    // Change value if those from the ProcParams are invalid.
    if (pp_crop_factor > 0) {
        camera_crop_factor->setValue(pparams->perspective.camera_crop_factor);
    } else {
        camera_crop_factor->setDefault(default_crop_factor);
        camera_crop_factor->setValue(default_crop_factor);
    }
    if (pp_focal_length > 0) {
        camera_focal_length->setValue(pparams->perspective.camera_focal_length);
    } else {
        camera_focal_length->setDefault(default_focal_length);
        camera_focal_length->setValue(default_focal_length);
    }
}