Some work about adaptive color scheme for Web UI (PR #19901) http://[316:c51a:62a3:8b9::4]/d4708/qBittorrent/src/branch/adaptive-webui
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/*
* Bittorrent Client using Qt4 and libtorrent.
* Copyright (C) 2006 Christophe Dumez
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contact : chris@qbittorrent.org
*/
#ifndef DLLISTDELEGATE_H
#define DLLISTDELEGATE_H
#include <QAbstractItemDelegate>
#include <QModelIndex>
#include <QPainter>
#include <QStyleOptionProgressBarV2>
#include <QProgressBar>
#include <QApplication>
#include "misc.h"
// Defines for download list list columns
#define NAME 0
#define SIZE 1
#define PROGRESS 2
#define DLSPEED 3
#define UPSPEED 4
#define SEEDSLEECH 5
#define STATUS 6
#define ETA 7
#define HASH 8
class DLListDelegate: public QAbstractItemDelegate {
Q_OBJECT
public:
DLListDelegate(QObject *parent) : QAbstractItemDelegate(parent){}
~DLListDelegate(){}
void paint(QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index) const{
QStyleOptionViewItem opt = option;
char tmp[MAX_CHAR_TMP];
// set text color
QVariant value = index.data(Qt::TextColorRole);
if (value.isValid() && qvariant_cast<QColor>(value).isValid()){
opt.palette.setColor(QPalette::Text, qvariant_cast<QColor>(value));
}
QPalette::ColorGroup cg = option.state & QStyle::State_Enabled
? QPalette::Normal : QPalette::Disabled;
if (option.state & QStyle::State_Selected){
painter->setPen(opt.palette.color(cg, QPalette::HighlightedText));
}else{
painter->setPen(opt.palette.color(cg, QPalette::Text));
}
// draw the background color
if(index.column() != PROGRESS){
if (option.showDecorationSelected && (option.state & QStyle::State_Selected)){
if (cg == QPalette::Normal && !(option.state & QStyle::State_Active)){
cg = QPalette::Inactive;
}
painter->fillRect(option.rect, option.palette.brush(cg, QPalette::Highlight));
}else{
value = index.data(Qt::BackgroundColorRole);
if (value.isValid() && qvariant_cast<QColor>(value).isValid()){
painter->fillRect(option.rect, qvariant_cast<QColor>(value));
}
}
}
switch(index.column()){
case SIZE:
painter->drawText(option.rect, Qt::AlignCenter, misc::friendlyUnit(index.data().toLongLong()));
break;
case ETA:
painter->drawText(option.rect, Qt::AlignCenter, misc::userFriendlyDuration(index.data().toLongLong()));
break;
case UPSPEED:
case DLSPEED:{
float speed = index.data().toDouble();
snprintf(tmp, MAX_CHAR_TMP, "%.1f", speed/1024.);
painter->drawText(option.rect, Qt::AlignCenter, QString(tmp)+" "+tr("KiB/s"));
break;
}
case PROGRESS:{
QStyleOptionProgressBarV2 newopt;
float progress;
progress = index.data().toDouble()*100.;
snprintf(tmp, MAX_CHAR_TMP, "%.1f", progress);
newopt.rect = opt.rect;
newopt.text = QString(tmp)+"%";
newopt.progress = (int)progress;
newopt.maximum = 100;
newopt.minimum = 0;
newopt.state |= QStyle::State_Enabled;
newopt.textVisible = false;
QApplication::style()->drawControl(QStyle::CE_ProgressBar, &newopt,
painter);
//We prefer to display text manually to control color/font/boldness
if (option.state & QStyle::State_Selected){
opt.palette.setColor(QPalette::Text, QColor("grey"));
painter->setPen(opt.palette.color(cg, QPalette::Text));
}
painter->drawText(option.rect, Qt::AlignCenter, newopt.text);
break;
}
case NAME:{
// decoration
value = index.data(Qt::DecorationRole);
QPixmap pixmap = qvariant_cast<QIcon>(value).pixmap(option.decorationSize, option.state & QStyle::State_Enabled ? QIcon::Normal : QIcon::Disabled, option.state & QStyle::State_Open ? QIcon::On : QIcon::Off);
QRect pixmapRect = (pixmap.isNull() ? QRect(0, 0, 0, 0): QRect(QPoint(0, 0), option.decorationSize));
if (pixmapRect.isValid()){
QPoint p = QStyle::alignedRect(option.direction, Qt::AlignLeft, pixmap.size(), option.rect).topLeft();
painter->drawPixmap(p, pixmap);
}
painter->drawText(option.rect.translated(pixmap.size().width(), 0), Qt::AlignLeft, index.data().toString());
break;
}
default:
painter->drawText(option.rect, Qt::AlignCenter, index.data().toString());
}
}
QSize sizeHint(const QStyleOptionViewItem & option, const QModelIndex & index) const{
QVariant value = index.data(Qt::FontRole);
QFont fnt = value.isValid() ? qvariant_cast<QFont>(value) : option.font;
QFontMetrics fontMetrics(fnt);
const QString text = index.data(Qt::DisplayRole).toString();
QRect textRect = QRect(0, 0, 0, fontMetrics.lineSpacing() * (text.count(QLatin1Char('\n')) + 1));
return textRect.size();
}
// QWidget* createEditor(QWidget * parent, const QStyleOptionViewItem& /*option*/, const QModelIndex & index) const{
// if(index.column() == PROGRESS){
// QProgressBar *progressBar = new QProgressBar(parent);
// progressBar->setRange(0,100);
// progressBar->installEventFilter(const_cast<DLListDelegate*>(this));
// return progressBar;
// }
// return 0;
// }
// void setEditorData(QWidget *editor, const QModelIndex &index) const{
// QProgressBar *progressBar = static_cast<QProgressBar*>(editor);
// float progress = index.data().toDouble();
// progressBar->setValue((int)(progress*100.));
// }
// void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex & index) const{
// if(index.column() == PROGRESS){
// editor->setGeometry(option.rect);
// }
// }
};
#endif