1/*
2 * Copyright (C) 2010 Parker Coates <coates@kde.org>
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of
7 * the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#include "messagebox.h"
19
20#include "renderer.h"
21
22#include <QtGui/QFontMetrics>
23#include <QtGui/QPainter>
24
25
26namespace
27{
28 const qreal textToBoxSizeRatio = 0.8;
29 const int MessageBoxMinimumFontSize = 5;
30 const int maximumFontSize = 36;
31}
32
33
34MessageBox::MessageBox()
35 : KGameRenderedItem( Renderer::self(), "message_frame" ),
36 m_fontCached( false )
37{
38
39}
40
41
42void MessageBox::setMessage( const QString & message )
43{
44 if ( m_message != message )
45 {
46 m_message = message;
47 m_fontCached = false;
48 update();
49 }
50}
51
52
53QString MessageBox::message() const
54{
55 return m_message;
56}
57
58
59void MessageBox::setSize( const QSize & size )
60{
61 if ( size != renderSize() )
62 {
63 setRenderSize( size );
64 m_fontCached = false;
65 }
66}
67
68
69QSize MessageBox::size() const
70{
71 return renderSize();
72}
73
74
75void MessageBox::paint( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget )
76{
77 QRect rect = pixmap().rect();
78
79 if ( rect.isEmpty() )
80 return;
81
82 KGameRenderedItem::paint( painter, option, widget );
83
84 painter->setFont( m_font );
85
86 if ( !m_fontCached )
87 {
88 int availableWidth = rect.width() * textToBoxSizeRatio;
89 int availableHeight = rect.height() * textToBoxSizeRatio;
90 int size = maximumFontSize;
91
92 QFont f = painter->font();
93 f.setPointSize( size );
94 painter->setFont( f );
95 do
96 {
97 QRect br = painter->boundingRect( rect, Qt::AlignLeft | Qt::AlignTop, m_message );
98 if ( br.width() < availableWidth && br.height() < availableHeight )
99 break;
100
101 size = qBound( MessageBoxMinimumFontSize,
102 qMin( size * availableWidth / br.width(),
103 size * availableHeight / br.height() ),
104 size - 1 );
105
106 QFont f = painter->font();
107 f.setPointSize( size );
108 painter->setFont( f );
109 }
110 while ( size > MessageBoxMinimumFontSize );
111
112 m_font = painter->font();
113 m_fontCached = true;
114 }
115
116 painter->setPen( Renderer::self()->colorOfElement( "message_text_color" ) );
117 painter->drawText( rect, Qt::AlignCenter, m_message );
118}
119
120
121