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path: root/src/gui/widgets/radiobutton.cpp
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/*
 *  The ManaPlus Client
 *  Copyright (C) 2004-2009  The Mana World Development Team
 *  Copyright (C) 2009-2010  The Mana Developers
 *  Copyright (C) 2011-2012  The ManaPlus Developers
 *
 *  This file is part of The ManaPlus Client.
 *
 *  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
 *  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, see <http://www.gnu.org/licenses/>.
 */

#include "gui/widgets/radiobutton.h"

#include "client.h"
#include "configuration.h"
#include "graphics.h"
#include "keydata.h"
#include "keyevent.h"

#include "gui/theme.h"

#include "resources/image.h"

#include "debug.h"

int RadioButton::instances = 0;
float RadioButton::mAlpha = 1.0;
Image *RadioButton::radioNormal;
Image *RadioButton::radioChecked;
Image *RadioButton::radioDisabled;
Image *RadioButton::radioDisabledChecked;
Image *RadioButton::radioNormalHi;
Image *RadioButton::radioCheckedHi;

RadioButton::RadioButton(const std::string &caption, const std::string &group,
                         const bool marked):
    gcn::RadioButton(caption, group, marked),
    mHasMouse(false)
{
    setForegroundColor(Theme::getThemeColor(Theme::RADIOBUTTON));
    if (instances == 0)
    {
        if (Theme::instance())
        {
            ImageRect rect;
            Theme::instance()->loadRect(rect, "radio.xml", "", 0, 3);
            radioChecked = rect.grid[0];
            radioDisabledChecked = rect.grid[0];
            radioCheckedHi = rect.grid[1];
            radioNormal = rect.grid[2];
            radioDisabled = rect.grid[2];
            radioNormalHi = rect.grid[3];
        }
        if (radioNormal)
            radioNormal->setAlpha(mAlpha);
        if (radioChecked)
            radioChecked->setAlpha(mAlpha);
//        if (radioDisabled)
//            radioDisabled->setAlpha(mAlpha);
//        if (radioDisabledChecked)
//            radioDisabledChecked->setAlpha(mAlpha);
        if (radioNormalHi)
            radioNormalHi->setAlpha(mAlpha);
        if (radioCheckedHi)
            radioCheckedHi->setAlpha(mAlpha);
    }

    instances++;
}

RadioButton::~RadioButton()
{
    instances--;

    if (instances == 0)
    {
        if (radioNormal)
            radioNormal->decRef();
        if (radioChecked)
            radioChecked->decRef();
//        if (radioDisabled)
//            radioDisabled->decRef();
//        if (radioDisabledChecked)
//            radioDisabledChecked->decRef();
        if (radioNormalHi)
            radioNormalHi->decRef();
        if (radioCheckedHi)
            radioCheckedHi->decRef();
    }
}

void RadioButton::drawBox(gcn::Graphics* graphics)
{
    if (Client::getGuiAlpha() != mAlpha)
    {
        mAlpha = Client::getGuiAlpha();
        if (radioNormal)
            radioNormal->setAlpha(mAlpha);
        if (radioChecked)
            radioChecked->setAlpha(mAlpha);
//        if (radioDisabled)
//            radioDisabled->setAlpha(mAlpha);
//        if (radioDisabledChecked)
//            radioDisabledChecked->setAlpha(mAlpha);
        if (radioNormalHi)
            radioNormalHi->setAlpha(mAlpha);
        if (radioCheckedHi)
            radioCheckedHi->setAlpha(mAlpha);
    }

    const Image *box = nullptr;

    if (mEnabled && isVisible())
    {
        if (mSelected)
            if (mHasMouse)
                box = radioCheckedHi;
            else
                box = radioChecked;
        else
            if (mHasMouse)
                box = radioNormalHi;
            else
                box = radioNormal;
    }
    else
    {
        if (mSelected)
            box = radioDisabledChecked;
        else
            box = radioDisabled;
    }

    if (box)
        static_cast<Graphics*>(graphics)->drawImage(box, 3, 3);
}

void RadioButton::draw(gcn::Graphics* graphics)
{
    drawBox(graphics);

    graphics->setFont(getFont());
    graphics->setColor(getForegroundColor());
    graphics->drawText(getCaption(), 16, 0);
}

void RadioButton::mouseEntered(gcn::MouseEvent& event A_UNUSED)
{
    mHasMouse = true;
}

void RadioButton::mouseExited(gcn::MouseEvent& event A_UNUSED)
{
    mHasMouse = false;
}

void RadioButton::keyPressed(gcn::KeyEvent& keyEvent)
{
    const int action = static_cast<KeyEvent*>(&keyEvent)->getActionId();

    if (action == Input::KEY_GUI_SELECT)
    {
        setSelected(true);
        distributeActionEvent();
        keyEvent.consume();
    }
}