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/*
* Copyright (C) 2010 Parker Coates <coates@kde.org>
*
* 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 (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 "messagebox.h"
#include "renderer.h"
#include <QtGui/QFontMetrics>
#include <QtGui/QPainter>
namespace
{
const qreal textToBoxSizeRatio = 0.8;
const int MessageBoxMinimumFontSize = 5;
const int maximumFontSize = 36;
}
MessageBox::MessageBox()
: KGameRenderedItem( Renderer::self(), "message_frame" ),
m_fontCached( false )
{
}
void MessageBox::setMessage( const QString & message )
{
if ( m_message != message )
{
m_message = message;
m_fontCached = false;
update();
}
}
QString MessageBox::message() const
{
return m_message;
}
void MessageBox::setSize( const QSize & size )
{
if ( size != renderSize() )
{
setRenderSize( size );
m_fontCached = false;
}
}
QSize MessageBox::size() const
{
return renderSize();
}
void MessageBox::paint( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget )
{
QRect rect = pixmap().rect();
if ( rect.isEmpty() )
return;
KGameRenderedItem::paint( painter, option, widget );
painter->setFont( m_font );
if ( !m_fontCached )
{
int availableWidth = rect.width() * textToBoxSizeRatio;
int availableHeight = rect.height() * textToBoxSizeRatio;
int size = maximumFontSize;
QFont f = painter->font();
f.setPointSize( size );
painter->setFont( f );
do
{
QRect br = painter->boundingRect( rect, Qt::AlignLeft | Qt::AlignTop, m_message );
if ( br.width() < availableWidth && br.height() < availableHeight )
break;
size = qBound( MessageBoxMinimumFontSize,
qMin( size * availableWidth / br.width(),
size * availableHeight / br.height() ),
size - 1 );
QFont f = painter->font();
f.setPointSize( size );
painter->setFont( f );
}
while ( size > MessageBoxMinimumFontSize );
m_font = painter->font();
m_fontCached = true;
}
painter->setPen( Renderer::self()->colorOfElement( "message_text_color" ) );
painter->drawText( rect, Qt::AlignCenter, m_message );
}
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