twobutton.cpp

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/***************************************************************************
 *   Copyright (C) 2005-2013 by the FIFE team                              *
 *   http://www.fifengine.net                                              *
 *   This file is part of FIFE.                                            *
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 *   FIFE is free software; you can redistribute it and/or                 *
 *   modify it under the terms of the GNU Lesser General Public            *
 *   License as published by the Free Software Foundation; either          *
 *   version 2.1 of the License, or (at your option) any later version.    *
 *                                                                         *
 *   This library 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     *
 *   Lesser General Public License for more details.                       *
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 *   Free Software Foundation, Inc.,                                       *
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// Standard C++ library includes
#include <cassert>

// 3rd party library includes

// FIFE includes
// These includes are split up in two parts, separated by one empty line
// First block: files included from the FIFE root src directory
// Second block: files included from the same folder
#include "util/log/logger.h"

#include "twobutton.h"

namespace fcn {
    static FIFE::Logger _log(LM_GUI);

    TwoButton::TwoButton(Image *up_file , Image *down_file, Image *hover_file, const std::string& caption):
        Button(),
        m_upImage(up_file),
        m_downImage(down_file),
        m_hoverImage(hover_file),
        x_downoffset(0),
        y_downoffset(0) {
        addWidgetListener(this);

        m_hoverImage = hover_file;
        setFrameSize(0);
        adjustSize();
        mCaption = caption;
    }

    TwoButton::~TwoButton() {
    }

    void TwoButton::setDownOffset(int32_t x, int32_t y) {
        x_downoffset = x;
        y_downoffset = y;
    }

    void TwoButton::draw(Graphics *graphics) {
        Image* img = m_upImage;
        int32_t xoffset = 0;
        int32_t yoffset = 0;

        if (isPressed()) {
            if( m_downImage ) {
                img = m_downImage;
                xoffset = x_downoffset;
                yoffset = y_downoffset;
            }
        } else if(mHasMouse) {
            if( m_hoverImage ) {
                img = m_hoverImage;
            }
        }

        if (img) {
            graphics->drawImage(img, xoffset, yoffset, 0, 0, getWidth(), getHeight());
        }

        graphics->setColor(getForegroundColor());
        int32_t textX;
        int32_t textY = getHeight() / 2 - getFont()->getHeight() / 2;
        switch (getAlignment())
        {
            case Graphics::Left:
                textX = 4;
                break;
            case Graphics::Center:
                textX = getWidth() / 2;
                break;
            case Graphics::Right:
                textX = getWidth() - 4;
                break;
            default:
                textX = 4;
                FL_WARN(_log, FIFE::LMsg("TwoButton::draw() - ") << "Unknown alignment: "
                              << getAlignment() << ".  Using the default of Graphics::LEFT");
        }

        graphics->setFont(getFont());
        if (mCaption.size() > 0) {
            if (isPressed())
                graphics->drawText(getCaption(), textX + 1,
                        textY + 1, getAlignment());
            else
                graphics->drawText(getCaption(), textX, textY, getAlignment());
        }
    }
    void TwoButton::adjustSize() {
        int32_t w = 0;
        int32_t h = w;
        if( m_upImage ) {
            w = m_upImage->getWidth();
            h = m_upImage->getHeight();
        }
        if( m_downImage ) {
            w = std::max(m_downImage->getWidth(), w);
            h = std::max(m_downImage->getHeight(), h);
        }
        if( m_hoverImage ) {
            w = std::max(m_hoverImage->getWidth(), w);
            h = std::max(m_hoverImage->getHeight(), h);
        }
        setWidth(w);
        setHeight(h);
    }
    void TwoButton::setUpImage(Image* image) {
        m_upImage = image;
        adjustSize();
    }
    void TwoButton::setDownImage(Image* image) {
        m_downImage = image;
        adjustSize();
    }
    void TwoButton::setHoverImage(Image* image) {
        m_hoverImage = image;
        adjustSize();
    }

    void TwoButton::ancestorHidden(const Event& e) {
        mHasMouse = false;
    }

}
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