1/*
2 * This file Copyright (C) Mnemosyne LLC
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2
6 * as published by the Free Software Foundation.
7 *
8 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
9 *
10 * $Id: torrent-delegate-min.cc 13244 2012-03-04 13:15:43Z jordan $
11 */
12
13#include <iostream>
14
15#include <QApplication>
16#include <QBrush>
17#include <QFont>
18#include <QFontMetrics>
19#include <QIcon>
20#include <QModelIndex>
21#include <QPainter>
22#include <QPixmap>
23#include <QPixmapCache>
24#include <QStyleOptionProgressBarV2>
25
26#include <libtransmission/transmission.h>
27#include <libtransmission/utils.h>
28
29#include "torrent.h"
30#include "torrent-delegate-min.h"
31#include "torrent-model.h"
32
33enum
34{
35   GUI_PAD = 6,
36   BAR_WIDTH = 50,
37   BAR_HEIGHT = 12,
38   LINE_SPACING = 4
39};
40
41/***
42****
43****   +---------+-----------------------------------------------+
44****   |  Icon   |   Title      shortStatusString [Progressbar]  |
45****   +-------- +-----------------------------------------------+
46****
47***/
48
49QSize
50TorrentDelegateMin :: sizeHint( const QStyleOptionViewItem& option, const Torrent& tor ) const
51{
52    const QStyle* style( QApplication::style( ) );
53    static const int iconSize( style->pixelMetric( QStyle :: PM_SmallIconSize ) );
54
55    QFont nameFont( option.font );
56    const QFontMetrics nameFM( nameFont );
57    const bool isMagnet( !tor.hasMetadata( ) );
58    const QString nameStr = (isMagnet ? progressString( tor ) : tor.name( ) );
59    const int nameWidth = nameFM.width( nameStr );
60
61    QFont statusFont( option.font );
62    statusFont.setPointSize( int( option.font.pointSize( ) * 0.85 ) );
63    const QFontMetrics statusFM( statusFont );
64    const QString statusStr( shortStatusString( tor ) );
65    const int statusWidth = statusFM.width( statusStr );
66
67    const QSize m( margin( *style ) );
68
69    return QSize( m.width()*2 + iconSize + GUI_PAD + nameWidth
70                                         + GUI_PAD + statusWidth
71                                         + GUI_PAD + BAR_WIDTH,
72                  m.height()*2 + std::max( nameFM.height(), (int)BAR_HEIGHT ) );
73}
74
75void
76TorrentDelegateMin :: drawTorrent( QPainter * painter, const QStyleOptionViewItem& option, const Torrent& tor ) const
77{
78    const bool isPaused( tor.isPaused( ) );
79    const QStyle * style( QApplication::style( ) );
80    static const int iconSize( style->pixelMetric( QStyle :: PM_SmallIconSize ) );
81
82    QFont nameFont( option.font );
83    const QFontMetrics nameFM( nameFont );
84    const bool isMagnet( !tor.hasMetadata( ) );
85    const QString nameStr = (isMagnet ? progressString( tor ) : tor.name( ) );
86
87    QFont statusFont( option.font );
88    statusFont.setPointSize( int( option.font.pointSize( ) * 0.85 ) );
89    const QFontMetrics statusFM( statusFont );
90    const QString statusStr( shortStatusString( tor ) );
91    const QSize statusSize( statusFM.size( 0, statusStr ) );
92
93    painter->save( );
94
95    if (option.state & QStyle::State_Selected) {
96        QPalette::ColorGroup cg = option.state & QStyle::State_Enabled
97                                  ? QPalette::Normal : QPalette::Disabled;
98        if (cg == QPalette::Normal && !(option.state & QStyle::State_Active))
99            cg = QPalette::Inactive;
100
101        painter->fillRect(option.rect, option.palette.brush(cg, QPalette::Highlight));
102    }
103
104    QIcon::Mode im;
105    if( isPaused || !(option.state & QStyle::State_Enabled ) ) im = QIcon::Disabled;
106    else if( option.state & QStyle::State_Selected ) im = QIcon::Selected;
107    else im = QIcon::Normal;
108
109    QIcon::State qs;
110    if( isPaused ) qs = QIcon::Off;
111    else qs = QIcon::On;
112
113    QPalette::ColorGroup cg = QPalette::Normal;
114    if( isPaused || !(option.state & QStyle::State_Enabled ) ) cg = QPalette::Disabled;
115    if( cg == QPalette::Normal && !(option.state & QStyle::State_Active ) ) cg = QPalette::Inactive;
116
117    QPalette::ColorRole cr;
118    if( option.state & QStyle::State_Selected ) cr = QPalette::HighlightedText;
119    else cr = QPalette::Text;
120
121    QStyle::State progressBarState( option.state );
122    if( isPaused ) progressBarState = QStyle::State_None;
123    progressBarState |= QStyle::State_Small;
124
125    // layout
126    const QSize m( margin( *style ) );
127    QRect fillArea( option.rect );
128    fillArea.adjust( m.width(), m.height(), -m.width(), -m.height() );
129    const QRect iconArea( fillArea.x( ),
130                          fillArea.y( ) + ( fillArea.height( ) - iconSize ) / 2,
131                          iconSize,
132                          iconSize );
133    const QRect barArea( fillArea.x( ) + fillArea.width( ) - BAR_WIDTH,
134                         fillArea.y( ) + ( fillArea.height( ) - BAR_HEIGHT ) / 2,
135                         BAR_WIDTH,
136                         BAR_HEIGHT );
137    const QRect statusArea( barArea.x( ) - GUI_PAD - statusSize.width( ),
138                            fillArea.y( ) + ( fillArea.height( ) - statusSize.height( ) ) / 2,
139                            fillArea.width( ),
140                            fillArea.height( ) );
141    const QRect nameArea( iconArea.x( ) + iconArea.width( ) + GUI_PAD,
142                          fillArea.y( ),
143                          statusArea.x( ) - ( iconArea.x( ) + iconArea.width( ) + GUI_PAD * 2 ),
144                          fillArea.height( ) );
145
146    // render
147    if( tor.hasError( ) )
148        painter->setPen( QColor( "red" ) );
149    else
150        painter->setPen( option.palette.color( cg, cr ) );
151    tor.getMimeTypeIcon().paint( painter, iconArea, Qt::AlignCenter, im, qs );
152    painter->setFont( nameFont );
153    painter->drawText( nameArea, 0, nameFM.elidedText( nameStr, Qt::ElideRight, nameArea.width( ) ) );
154    painter->setFont( statusFont );
155    painter->drawText( statusArea, 0, statusStr );
156    myProgressBarStyle->rect = barArea;
157    if ( tor.isDownloading() ) {
158        myProgressBarStyle->palette.setBrush( QPalette::Highlight, blueBrush );
159        myProgressBarStyle->palette.setColor( QPalette::Base, blueBack );
160        myProgressBarStyle->palette.setColor( QPalette::Background, blueBack );
161    }
162    else if ( tor.isSeeding() ) {
163        myProgressBarStyle->palette.setBrush( QPalette::Highlight, greenBrush );
164        myProgressBarStyle->palette.setColor( QPalette::Base, greenBack );
165        myProgressBarStyle->palette.setColor( QPalette::Background, greenBack );
166    }
167    myProgressBarStyle->state = progressBarState;
168    char buf[32];
169    tr_snprintf( buf, sizeof( buf ), "%d%%", (int)tr_truncd( 100.0 * tor.percentDone( ), 0 ) );
170    myProgressBarStyle->text = buf;
171    myProgressBarStyle->textVisible = true;
172    myProgressBarStyle->textAlignment = Qt::AlignCenter;
173    setProgressBarPercentDone( option, tor );
174    style->drawControl( QStyle::CE_ProgressBar, myProgressBarStyle, painter );
175
176    painter->restore( );
177}
178