/*
    msgbox.cpp
    Copyright (C) 2007 Acekard, www.acekard.com
    Copyright (C) 2007-2009 somebody
    Copyright (C) 2009 yellow wood goblin

    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 3 of the License, or
    (at your option) 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 "ui.h"
#include "msgbox.h"
#include "fontfactory.h"
#include "language.h"

namespace akui {

cMessageBox::cMessageBox( s32 x, s32 y, u32 w, u32 h, cWindow * parent, const std::string & title, const std::string & msg, u32 style )
            : cForm( x, y, w, h, parent, title )
{
    u32 largestLineWidth = 0;
    size_t pos1 = 0;
    size_t pos2 = 0;
    size_t lineCount = 0;

    std::string breakedMsg = font().breakLine( msg, 192 );

    pos1 = breakedMsg.find( '\n' );
    while( breakedMsg.npos != pos1 )  {
        ++lineCount;
        u32 lineWidth = font().getStringScreenWidth( &breakedMsg[pos2], pos1 - pos2 );
        if( largestLineWidth < lineWidth )
            largestLineWidth = lineWidth;
        pos2 = pos1;
        pos1 = breakedMsg.find( '\n', pos2 + 1 );
        dbg_printf("line w %d\n", lineWidth );
    }

    _size.x = largestLineWidth + 48;
    if( _size.x < 192 )
        _size.x = 192;
    if( _size.x > 256 )
        _size.x = 256;
    if( _size.y > 192 )
        _size.y = 192;
    if( _size.x & 1 ) --_size.x;   // 4 byte align, for speed optimization
    _size.y = lineCount * gs().fontHeight + 60;
    _position.x = (SCREEN_WIDTH - _size.x) / 2;
    if( _position.x & 1 ) --_position.x;
    _position.y = (SCREEN_HEIGHT - _size.y) / 2;
    _textPoision.x = _position.x + (_size.x - largestLineWidth ) / 2;
    _textPoision.y = _position.y + 24;
    dbg_printf("_size.x %d largestLineWidth %d\n", _size.x , largestLineWidth );

    _text = title;
    _msg = breakedMsg;
    _style = style;
    //_msgRet = -1;
    _buttonOK = NULL;
    _buttonCANCEL = NULL;
    _buttonYES = NULL;
    _buttonNO = NULL;

    _buttonOK = new cButton( 0, 0, 46, 18, this, "\x01 OK" );
    _buttonOK->setText( "\x01 " + LANG("message box", "ok" ) );
    _buttonOK->setStyle( cButton::press );
    _buttonOK->hide();

    _buttonOK->loadAppearance( SFN_BUTTON3 );
    _buttonOK->setStyle( cButton::press );
    _buttonOK->clicked.connect( this, &cMessageBox::onOK );
    addChildWindow( _buttonOK );

    _buttonCANCEL = new cButton( 0, 0, 46, 18, this, "\x02 Cancel" );
    _buttonCANCEL->setText( "\x02 " + LANG("message box", "cancel") );
    _buttonCANCEL->setStyle( cButton::press );
    _buttonCANCEL->hide();
    _buttonCANCEL->loadAppearance( SFN_BUTTON3 );
    _buttonCANCEL->clicked.connect( this, &cMessageBox::onCANCEL );
    addChildWindow( _buttonCANCEL );

    _buttonYES = new cButton( 0, 0, 46, 18, this, "\x01 Yes" );
    _buttonYES->setText( "\x01 " + LANG("message box", "yes") );
    _buttonYES->setStyle( cButton::press );
    _buttonYES->hide();
    _buttonYES->loadAppearance( SFN_BUTTON3 );
    _buttonYES->clicked.connect( this, &cMessageBox::onOK );
    addChildWindow( _buttonYES );

    _buttonNO = new cButton( 0, 0, 46, 18, this, "\x02 No" );
    _buttonNO->setText( "\x02 " + LANG("message box", "no") );
    _buttonNO->setStyle( cButton::press );
    _buttonNO->hide();
    //_buttonNO->setTextColor( RGB15(20,14,0) );
    _buttonNO->loadAppearance( SFN_BUTTON3 );
    _buttonNO->clicked.connect( this, &cMessageBox::onCANCEL );
    addChildWindow( _buttonNO );

    s16 nextButtonX = size().x;
    s16 buttonPitch = 60;
    s16 buttonY = size().y - _buttonNO->size().y - 4;
    // 下一个要画的按钮的位置
    if( _style & MB_NO ) {
        // 在nextButtonX位置画 NO 按钮
        // nextButtonX -= 按钮宽度 + 空白区宽度
        buttonPitch = _buttonNO->size().x + 8;
        nextButtonX -= buttonPitch;
        _buttonNO->setRelativePosition( cPoint(nextButtonX, buttonY) );
        _buttonNO->show();
    }


    if( _style & MB_YES ) {
        // 在nextButtonX位置画 YES 按钮
        // nextButtonX -= 按钮宽度 + 空白区宽度
        buttonPitch = _buttonYES->size().x + 8;
        nextButtonX -= buttonPitch;
        _buttonYES->setRelativePosition( cPoint(nextButtonX, buttonY) );
        _buttonYES->show();
    }


    if( _style & MB_CANCEL ) {
        // 在nextButtonX位置画 CANCEL 按钮
        // nextButtonX -= 按钮宽度 + 空白区宽度
        buttonPitch = _buttonCANCEL->size().x + 8;
        nextButtonX -= buttonPitch;
        _buttonCANCEL->setRelativePosition( cPoint(nextButtonX, buttonY) );
        _buttonCANCEL->show();
    }

    if( _style & MB_OK ) {
        // 在nextButtonX位置画 OK 按钮
        // nextButtonX -= 按钮宽度 + 空白区宽度
        buttonPitch = _buttonOK->size().x + 8;
        nextButtonX -= buttonPitch;
        _buttonOK->setRelativePosition( cPoint(nextButtonX, buttonY) );
        _buttonOK->show();
    }

    arrangeChildren();

    loadAppearance( "" );
}

cMessageBox::~cMessageBox()
{
    delete _buttonOK;
    delete _buttonCANCEL;
    delete _buttonYES;
    delete _buttonNO;
}

void cMessageBox::onOK()
{
    _modalRet = ID_OK;
}

void cMessageBox::onCANCEL()
{
    _modalRet = ID_CANCEL;
}

bool cMessageBox::process( const cMessage & msg )
{
    bool ret = false;
    if(isVisible()) {
        ret = cForm::process( msg );
        if( !ret ) {
            if( msg.id() > cMessage::keyMessageStart
                && msg.id() < cMessage::keyMessageEnd ) {
                ret = processKeyMessage( (cKeyMessage &)msg );
            }
            else if( msg.id() > cMessage::touchMessageStart
                && msg.id() < cMessage::touchMessageEnd ) {
                ret = processTouchMessage( (cTouchMessage &)msg );
            }
        }
    }

    return ret;
}

bool cMessageBox::processKeyMessage( const cKeyMessage & msg )
{
    bool ret = false;
    if( msg.id() == cMessage::keyDown ) {
        switch( msg.keyCode() )
        {
        case cKeyMessage::UI_KEY_A:
            onOK();
            ret = true;
            return true;
            break;
        case cKeyMessage::UI_KEY_B:
            onCANCEL();
            ret = true;
            return true;
            break;
        }
    }
    return ret;
}

bool cMessageBox::processTouchMessage( const cTouchMessage & msg )
{
    return false;
}

void cMessageBox::draw()
{
    _renderDesc.draw( windowRectangle(), _engine );
    cForm::draw();

    // draw message text
    gdi().setPenColor( uiSettings().formTextColor, _engine );
    gdi().textOut( _textPoision.x, _textPoision.y, _msg.c_str(), _engine );
}

cWindow& cMessageBox::loadAppearance(const std::string& aFileName )
{
    _renderDesc.loadData(
        SFN_FORM_TITLE_L, SFN_FORM_TITLE_R, SFN_FORM_TITLE_M );

    _renderDesc.setTitleText( _text );
    return *this;
}

u32 messageBox( cWindow * parent, const std::string & title, const std::string & msg, u32 style )
{
    // check point 如果出现奇怪的对话框消失问题就检查这里
    cMessageBox msgbox( 12, 36, 232, 120, parent, title, msg, style );
    //cMessageBox msgbox( 0, 0, 256, 192, parent, text, style );

    return msgbox.doModal();

}



}