mirror of
https://github.com/wang-bin/QtAV.git
synced 2026-10-19 13:41:33 +08:00
wang-bin
107 lines
4.2 KiB
C++
107 lines
4.2 KiB
C++
/******************************************************************************
|
|
QtAV Player Demo: this file is part of QtAV examples
|
|
Copyright (C) 2012-2015 Wang Bin <wbsecg1@gmail.com>
|
|
|
|
* This file is part of QtAV
|
|
|
|
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 "PlayListDelegate.h"
|
|
#include "PlayListItem.h"
|
|
|
|
#include <QtGui/QPainter>
|
|
#include <QApplication>
|
|
#include "PlayListModel.h"
|
|
|
|
static const int kMarginLeft = 4;
|
|
static const int kMarginTop = 2;
|
|
static const int kWidth = 320;
|
|
static const int kHeightMax = 30;
|
|
static const int kHeightMin = 20;
|
|
|
|
PlayListDelegate::PlayListDelegate(QObject *parent) :
|
|
QStyledItemDelegate(parent)
|
|
{
|
|
mHighlightRow = -1;
|
|
}
|
|
|
|
// dynamic height:http://www.qtcentre.org/threads/18879-solved-QListView-dynamic-item-height
|
|
void PlayListDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
|
|
{
|
|
if (!index.data().canConvert<PlayListItem>()) {
|
|
QStyledItemDelegate::paint(painter, option, index);
|
|
return;
|
|
}
|
|
|
|
painter->save();
|
|
painter->translate(option.rect.topLeft()); //!!!
|
|
painter->setRenderHint(QPainter::Antialiasing, true);
|
|
PlayListItem pli = qvariant_cast<PlayListItem>(index.data(Qt::DisplayRole));
|
|
//selected state has different background
|
|
bool detail = false;
|
|
//TODO: draw border. wrong rect. http://stackoverflow.com/questions/18568594/correct-highlighting-with-qt-custom-delegates
|
|
//const QWidget *widget = option.widget;
|
|
//QStyle *style = widget ? widget->style() : QApplication::style();
|
|
if (option.state & QStyle::State_Selected) {
|
|
detail = true;
|
|
mSelectedRows.append(index.row());
|
|
painter->fillRect(QRect(0, 0, kWidth, kHeightMax), QColor(0, 100, 200, 100));
|
|
//style->drawControl(QStyle::CE_ItemViewItem, &option, painter, widget);
|
|
} else {
|
|
mSelectedRows.removeAll(index.row());
|
|
}
|
|
// if check QStyle::State_HasFocus, updateLayout() will be called infinitly, why?
|
|
if (option.state & (QStyle::State_MouseOver)) {
|
|
detail = true;
|
|
PlayListModel *m = (PlayListModel*)index.model();
|
|
if (m && mHighlightRow != index.row()) {
|
|
mHighlightRow = index.row();
|
|
m->updateLayout();
|
|
}
|
|
painter->fillRect(QRect(0, 0, kWidth, kHeightMax), QColor(0, 100, 200, 30));
|
|
}
|
|
QFont ft;
|
|
ft.setBold(detail);
|
|
ft.setPixelSize(12);//kHeightMin - 2*kMarginTop);
|
|
painter->setFont(ft);
|
|
painter->translate(kMarginLeft, kMarginTop);
|
|
painter->drawText(QRect(0, 0, kWidth - 2*kMarginLeft, kHeightMin - 2*kMarginTop), pli.title());
|
|
painter->translate(0, kHeightMin + kMarginTop);
|
|
if (detail) {
|
|
painter->save();
|
|
ft.setBold(false);
|
|
ft.setPixelSize(8);//(kHeightMax - kHeightMin - 2*kMarginTop));
|
|
painter->setFont(ft);
|
|
painter->drawText(0, 0, pli.lastTimeString() + QString::fromLatin1("/") + pli.durationString());
|
|
painter->restore();
|
|
}
|
|
painter->restore();
|
|
}
|
|
|
|
// http://qt-project.org/forums/viewthread/5741
|
|
QSize PlayListDelegate::sizeHint(const QStyleOptionViewItem &option,
|
|
const QModelIndex &index) const
|
|
{
|
|
if (!index.data().canConvert<PlayListItem>()) {
|
|
return QStyledItemDelegate::sizeHint(option, index);
|
|
}
|
|
bool detail = option.state & (QStyle::State_Selected|QStyle::State_MouseOver);
|
|
// TODO: why detail always false?
|
|
if (detail || mHighlightRow == index.row() || mSelectedRows.contains(index.row())) {
|
|
return QSize(kWidth, kHeightMax);
|
|
}
|
|
return QSize(kWidth, kHeightMin);
|
|
}
|