/****************************************************************************
**
** This file is part of the LibreCAD project, a 2D CAD program
**
** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file gpl-2.0.txt included in the
** packaging of this file.
**
** 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
**
** This copyright notice MUST APPEAR in all copies of the script!
**
**********************************************************************/

#include <QAction>
#include <QMouseEvent>
#include "rs_actiondrawmtext.h"

#include "rs_mtext.h"
#include "rs_dialogfactory.h"
#include "rs_graphicview.h"
#include "rs_commandevent.h"
#include "rs_coordinateevent.h"
#include "rs_preview.h"
#include "rs_debug.h"

RS_ActionDrawMText::RS_ActionDrawMText(RS_EntityContainer& container,
                                     RS_GraphicView& graphicView)
        :RS_PreviewActionInterface("Draw Text",
						   container, graphicView)
        ,pos(std::make_unique<RS_Vector>())
		,textChanged(true)
{
	actionType=RS2::ActionDrawMText;
}

RS_ActionDrawMText::~RS_ActionDrawMText() = default;

void RS_ActionDrawMText::init(int status) {
    RS_ActionInterface::init(status);

	switch (status) {
	case ShowDialog: {
		reset();

        RS_MText tmp(nullptr, *data);
		if (RS_DIALOGFACTORY->requestMTextDialog(&tmp)) {
			data.reset(new RS_MTextData(tmp.getData()));
			setStatus(SetPos);
			showOptions();
		} else {
			hideOptions();
			finish(true);
		}
	}
		break;

	case SetPos:
		RS_DIALOGFACTORY->requestOptions(this, true, true);
		deletePreview();
		preview->setVisible(true);
		preparePreview();
		break;

	default:
		break;
	}
}



void RS_ActionDrawMText::reset() {
    const QString text= (data != nullptr) ? data->text : "";
    data = std::make_unique<RS_MTextData>(RS_Vector(0.0,0.0),
                                          1.0, 100.0,
                                          RS_MTextData::VATop,
                                          RS_MTextData::HALeft,
                                          RS_MTextData::LeftToRight,
                                          RS_MTextData::Exact,
                                          1.0,
                                          text,
                                          "standard",
                                          0.0,
                                          RS2::Update);
}



void RS_ActionDrawMText::trigger() {

    RS_DEBUG->print("RS_ActionDrawText::trigger()");

	if (pos->valid) {
        deletePreview();

		RS_MText* text = new RS_MText(container, *data);
        text->update();
        container->addEntity(text);

        if (document) {
            document->startUndoCycle();
            document->addUndoable(text);
            document->endUndoCycle();
        }

                graphicView->redraw(RS2::RedrawDrawing);

        textChanged = true;
		setStatus(SetPos);
    }
}


void RS_ActionDrawMText::preparePreview() {
	data->insertionPoint = *pos;
	RS_MText* text = new RS_MText(preview.get(), *data);
    text->update();
    preview->addEntity(text);
    textChanged = false;
}


void RS_ActionDrawMText::mouseMoveEvent(QMouseEvent* e) {
    RS_DEBUG->print("RS_ActionDrawText::mouseMoveEvent begin");

    if (getStatus()==SetPos) {
        RS_Vector mouse = snapPoint(e);
		RS_Vector mov = mouse-*pos;
		*pos = mouse;
		if (textChanged || pos->valid == false || preview->isEmpty()) {
            deletePreview();
            preparePreview();
        } else {
            preview->move(mov);
            preview->setVisible(true);
        }
        drawPreview();
    }

    RS_DEBUG->print("RS_ActionDrawText::mouseMoveEvent end");
}



void RS_ActionDrawMText::mouseReleaseEvent(QMouseEvent* e) {
    if (e->button()==Qt::LeftButton) {
        RS_CoordinateEvent ce(snapPoint(e));
        coordinateEvent(&ce);
    } else if (e->button()==Qt::RightButton) {
        deletePreview();
        //init(getStatus()-1);
        finish(false);
    }
}



void RS_ActionDrawMText::coordinateEvent(RS_CoordinateEvent* e) {
    if (e==NULL) {
        return;
    }

    RS_Vector mouse = e->getCoordinate();

    switch (getStatus()) {
    case ShowDialog:
        break;

    case SetPos:
		data->insertionPoint = mouse;
        trigger();
        break;

    default:
        break;
    }
}



void RS_ActionDrawMText::commandEvent(RS_CommandEvent* e) {
    QString c = e->getCommand().toLower();

    if (checkCommand("help", c)) {
            RS_DIALOGFACTORY->commandMessage(msgAvailableCommands()
                                             + getAvailableCommands().join(", "));
        return;
    }

    switch (getStatus()) {
    case SetPos:
        if (checkCommand("text", c)) {
            deletePreview();
            graphicView->disableCoordinateInput();
            setStatus(SetText);
        }
        break;

    case SetText: {
            setText(e->getCommand());
			RS_DIALOGFACTORY->requestOptions(this, true, true);
            graphicView->enableCoordinateInput();
            setStatus(SetPos);
        }
        break;

    default:
        break;
    }
}



QStringList RS_ActionDrawMText::getAvailableCommands() {
    QStringList cmd;
    if (getStatus()==SetPos) {
        cmd += command("text");
    }
    return cmd;
}



void RS_ActionDrawMText::showOptions() {
    RS_ActionInterface::showOptions();

	RS_DIALOGFACTORY->requestOptions(this, true, true);
}



void RS_ActionDrawMText::hideOptions() {
    RS_ActionInterface::hideOptions();

	RS_DIALOGFACTORY->requestOptions(this, false);
}



void RS_ActionDrawMText::updateMouseButtonHints() {
	switch (getStatus()) {
	case SetPos:
		RS_DIALOGFACTORY->updateMouseWidget(tr("Specify insertion point"),
											tr("Cancel"));
		break;
	case ShowDialog:
	case SetText:
		RS_DIALOGFACTORY->updateMouseWidget(tr("Enter text:"),
											tr("Back"));
		break;
	default:
		RS_DIALOGFACTORY->updateMouseWidget();
		break;
	}
}



void RS_ActionDrawMText::updateMouseCursor() {
    graphicView->setMouseCursor(RS2::CadCursor);
}

void RS_ActionDrawMText::setText(const QString& t) {
	data->text = t;
    textChanged = true;
}



QString RS_ActionDrawMText::getText() {
	return data->text;
}


void RS_ActionDrawMText::setAngle(double a) {
	data->angle = a;
    textChanged = true;
}

double RS_ActionDrawMText::getAngle() {
	return data->angle;
}


// EOFI
