Rivendellaudio/lib/rdfeedlistmodel.cpp
Fred Gleason 80e04f2fbf 2021-01-25 Fred Gleason <fredg@paravelsystems.com>
* Fixed a bug in 'RDFeedListModel' that caused feed icons to fail
	to be scaled correctly.

Signed-off-by: Fred Gleason <fredg@paravelsystems.com>
2021-01-25 12:49:38 -05:00

659 lines
15 KiB
C++

// rdfeedlistmodel.cpp
//
// Data model for Rivendell RSS feeds
//
// (C) Copyright 2021 Fred Gleason <fredg@paravelsystems.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
//
#include "rdapplication.h"
#include "rdconf.h"
#include "rdescape_string.h"
#include "rdfeed.h"
#include "rdfeedlistmodel.h"
#include "rdpodcast.h"
RDFeedListModel::RDFeedListModel(bool is_admin,QObject *parent)
: QAbstractItemModel(parent)
{
d_is_admin=is_admin;
d_font_metrics=NULL;
d_bold_font_metrics=NULL;
//
// Column Attributes
//
unsigned left=Qt::AlignLeft|Qt::AlignVCenter;
unsigned center=Qt::AlignCenter;
// unsigned right=Qt::AlignRight|Qt::AlignVCenter;
d_headers.push_back(tr("Key Name")); // 00
d_alignments.push_back(left);
d_headers.push_back(tr("Feed Title")); // 01
d_alignments.push_back(left);
d_headers.push_back(tr("Casts")); // 02
d_alignments.push_back(center);
d_headers.push_back(tr("Creation Date")); // 03
d_alignments.push_back(center);
d_headers.push_back(tr("Auto Post")); // 04
d_alignments.push_back(center);
d_headers.push_back(tr("Superfeed")); // 05
d_alignments.push_back(center);
d_headers.push_back(tr("Public URL")); // 06
d_alignments.push_back(left);
if(d_is_admin) {
changeUser();
}
}
RDFeedListModel::~RDFeedListModel()
{
}
QPalette RDFeedListModel::palette()
{
return d_palette;
}
void RDFeedListModel::setPalette(const QPalette &pal)
{
d_palette=pal;
}
void RDFeedListModel::setFont(const QFont &font)
{
d_font=font;
if(d_font_metrics!=NULL) {
delete d_font_metrics;
}
d_font_metrics=new QFontMetrics(d_font);
d_bold_font=font;
d_bold_font.setWeight(QFont::Bold);
if(d_bold_font_metrics!=NULL) {
delete d_bold_font_metrics;
}
d_bold_font_metrics=new QFontMetrics(d_bold_font);
}
QModelIndex RDFeedListModel::index(int row,int col,
const QModelIndex &parent) const
{
if(!parent.isValid()) {
return createIndex(row,col,(quint32)0);
}
if((parent.column()==0)&&(parent.internalId()==0)) {
return createIndex(row,col,(quint32)(1+parent.row()));
}
return QModelIndex();
}
QModelIndex RDFeedListModel::parent(const QModelIndex &index) const
{
if(index.isValid()&&(index.internalId()>0)) {
return createIndex(index.internalId()-1,0,(quint32)0);
}
return QModelIndex();
}
int RDFeedListModel::columnCount(const QModelIndex &parent) const
{
return d_headers.size();
}
int RDFeedListModel::rowCount(const QModelIndex &parent) const
{
if(parent.isValid()) {
if(parent.internalId()==0) {
return d_cast_texts.at(parent.row()).size();
}
return d_cast_texts.at(parent.internalId()-1).size();
}
return d_texts.size();
}
bool RDFeedListModel::hasChildren(const QModelIndex &parent) const
{
if(parent.isValid()) {
if((parent.internalId()==0)&&(parent.column()==0)) {
return d_cast_texts.at(parent.row()).size()>0;
}
return false;
}
return true;
}
Qt::ItemFlags RDFeedListModel::flags(const QModelIndex &index) const
{
return Qt::ItemIsSelectable|Qt::ItemIsEnabled;
}
QVariant RDFeedListModel::headerData(int section,Qt::Orientation orient,
int role) const
{
if((orient==Qt::Horizontal)&&(role==Qt::DisplayRole)) {
return d_headers.at(section);
}
return QVariant();
}
QVariant RDFeedListModel::data(const QModelIndex &index,int role) const
{
QString str;
int col=index.column();
int row=index.row();
QPixmap pix;
if(!index.isValid()) {
return QVariant();
}
if(index.internalId()>0) { // Casts
if(row<d_cast_texts.at(index.internalId()-1).size()) {
switch((Qt::ItemDataRole)role) {
case Qt::DisplayRole:
return d_cast_texts.at(index.internalId()-1).at(row).at(col);
case Qt::DecorationRole:
if(col==0) {
return d_cast_icons.at(index.internalId()-1).at(row);
}
break;
case Qt::TextAlignmentRole:
return d_alignments.at(col);
case Qt::SizeHintRole:
return QSize(RD_LISTWIDGET_ITEM_WIDTH_PADDING+
d_font_metrics->width(d_cast_texts.
at(index.internalId()-1).at(row).at(col).toString()),
24);
default:
break;
}
}
}
else { // Feeds
if(row<d_texts.size()) {
switch((Qt::ItemDataRole)role) {
case Qt::DisplayRole:
return d_texts.at(row).at(col);
case Qt::DecorationRole:
return d_icons.at(row).at(col);
case Qt::TextAlignmentRole:
return d_alignments.at(col);
case Qt::FontRole:
if(col==0) { // Key Name
return d_bold_font;
}
return d_font;
case Qt::TextColorRole:
// Nothing to do here!
break;
case Qt::BackgroundRole:
// Nothing to do here!
break;
case Qt::SizeHintRole:
return QSize(RD_LISTWIDGET_ITEM_WIDTH_PADDING+
(d_icons.at(row).at(col).value<QPixmap>().width())+
d_font_metrics->width(d_texts.at(row).at(col).toString()),
40);
default:
break;
}
}
}
return QVariant();
}
bool RDFeedListModel::isFeed(const QModelIndex &index) const
{
return index.internalId()==0;
}
bool RDFeedListModel::isCast(const QModelIndex &index) const
{
return index.internalId()>0;
}
QString RDFeedListModel::keyName(const QModelIndex &index) const
{
if(index.isValid()) {
if(isFeed(index)) {
return d_key_names.at(index.row());
}
return d_key_names.at(index.internalId()-1);
}
return QString();
}
unsigned RDFeedListModel::feedId(const QModelIndex &index) const
{
if(index.isValid()) {
if(isFeed(index)) {
return d_feed_ids.at(index.row());
}
return d_feed_ids.at(index.internalId()-1);
}
return 0;
}
QString RDFeedListModel::publicUrl(const QModelIndex &index) const
{
if(index.isValid()) {
if(isFeed(index)) {
return d_texts.at(index.row()).at(6).toString();
}
return d_texts.at(index.internalId()-1).at(6).toString();
}
return QString();
}
unsigned RDFeedListModel::castId(const QModelIndex &index) const
{
if(index.isValid()) {
if(isCast(index)) {
return d_cast_ids.at(index.internalId()-1).at(index.row());
}
}
return 0;
}
QModelIndex RDFeedListModel::feedRow(const QString &keyname) const
{
int pos=d_key_names.indexOf(keyname);
if(pos<0) {
return QModelIndex();
}
return createIndex(pos,0,(quint32)0);
}
QModelIndex RDFeedListModel::castRow(unsigned cast_id) const
{
for(int i=0;i<d_cast_ids.size();i++) {
for(int j=0;j<d_cast_ids.at(i).size();j++) {
if(d_cast_ids.at(i).at(j)==cast_id) {
return createIndex(j,0,i+1);
}
}
}
return QModelIndex();
}
QModelIndex RDFeedListModel::addFeed(const QString &keyname)
{
//
// Find the insertion offset
//
int offset=d_key_names.size();
for(int i=0;i<d_key_names.size();i++) {
if(keyname.toLower()<d_key_names.at(i).toLower()) {
offset=i;
break;
}
}
beginInsertRows(QModelIndex(),offset,offset);
QList<QVariant> list;
for(int i=0;i<columnCount();i++) {
list.push_back(QVariant());
}
QList<QList<QVariant> > list_list;
QList<unsigned> ids_list;
list_list.push_back(list);
d_icons.insert(offset,list);
d_texts.insert(offset,list);
d_key_names.insert(offset,keyname);
d_feed_ids.insert(offset,0);
d_cast_ids.insert(offset,ids_list);
d_cast_icons.insert(offset,list);
QString sql=sqlFields()+
"where "+
"FEEDS.KEY_NAME=\""+RDEscapeString(keyname)+"\" ";
RDSqlQuery *q=new RDSqlQuery(sql);
if(q->first()) {
updateRow(offset,q);
}
delete q;
endInsertRows();
emit rowCountChanged(d_texts.size());
return createIndex(offset,0,0);
}
void RDFeedListModel::removeFeed(const QString &keyname)
{
for(int i=0;i<d_key_names.size();i++) {
if(d_key_names.at(i)==keyname) {
beginRemoveRows(QModelIndex(),i,i);
d_key_names.removeAt(i);
d_feed_ids.removeAt(i);
d_texts.removeAt(i);
d_cast_ids.removeAt(i);
d_cast_icons.removeAt(i);
d_icons.removeAt(i);
endRemoveRows();
emit rowCountChanged(d_texts.size());
return;
}
}
}
void RDFeedListModel::refreshRow(const QModelIndex &index)
{
if(isFeed(index)) {
updateRowLine(index.row());
emit dataChanged(index,createIndex(index.row(),columnCount(),0));
}
}
void RDFeedListModel::refreshFeed(const QString &keyname)
{
for(int i=0;i<d_texts.size();i++) {
if(d_key_names.at(i)==keyname) {
updateRowLine(i);
emit dataChanged(createIndex(i,0,0),createIndex(i,columnCount(),0));
}
}
}
void RDFeedListModel::changeUser()
{
QString sql;
RDSqlQuery *q=NULL;
QString filter_sql="where ";
if(d_is_admin) {
sql=QString("select ")+
"KEY_NAME "+ // 00
"from FEEDS";
}
else {
sql=QString("select ")+
"KEY_NAME "+ // 00
"from FEED_PERMS where "+
"USER_NAME=\""+RDEscapeString(rda->user()->name())+"\"";
}
q=new RDSqlQuery(sql);
while(q->next()) {
filter_sql+="(KEY_NAME=\""+RDEscapeString(q->value(0).toString())+"\")||";
}
delete q;
filter_sql=filter_sql.left(filter_sql.length()-2);
updateModel(filter_sql);
}
void RDFeedListModel::processNotification(RDNotification *notify)
{
QString keyname;
if(notify->type()==RDNotification::FeedType) {
keyname=notify->id().toString();
switch(notify->action()) {
case RDNotification::ModifyAction:
refreshFeed(keyname);
break;
case RDNotification::NoAction:
case RDNotification::AddAction:
case RDNotification::DeleteAction:
case RDNotification::LastAction:
break;
}
}
}
void RDFeedListModel::updateModel(const QString &filter_sql)
{
QString sql;
RDSqlQuery *q=NULL;
//
// Placeholder values
//
QList<QVariant> list;
QList<QVariant> icons;
for(int i=0;i<columnCount();i++) {
list.push_back(QVariant());
icons.push_back(QVariant());
}
QList<QList<QVariant> > list_list;
list_list.push_back(list);
sql=sqlFields()+
filter_sql+
"order by FEEDS.KEY_NAME asc, PODCASTS.ORIGIN_DATETIME desc";
// printf("SQL: %s\n",sql.toUtf8().constData());
beginResetModel();
d_texts.clear();
d_key_names.clear();
d_feed_ids.clear();
d_cast_ids.clear();
d_cast_icons.clear();
d_icons.clear();
QString prev_keyname;
QList<unsigned> ids;
q=new RDSqlQuery(sql);
while(q->next()) {
if(q->value(0).toString()!=prev_keyname) {
d_texts.push_back(list);
d_key_names.push_back(QString());
d_feed_ids.push_back(0);
d_cast_texts.push_back(list_list);
d_cast_ids.push_back(ids);
d_cast_icons.push_back(list);
d_icons.push_back(icons);
updateRow(d_texts.size()-1,q);
prev_keyname=q->value(0).toString();
}
}
delete q;
endResetModel();
emit rowCountChanged(d_texts.size());
}
void RDFeedListModel::updateRowLine(int line)
{
QString sql=sqlFields()+
"where "+
"FEEDS.KEY_NAME=\""+RDEscapeString(d_key_names.at(line).at(0))+"\"";
RDSqlQuery *q=new RDSqlQuery(sql);
if(q->first()) {
updateRow(line,q);
emit dataChanged(createIndex(line,0,0),
createIndex(line,columnCount(),(quint32)0));
}
delete q;
}
void RDFeedListModel::updateRow(int row,RDSqlQuery *q)
{
int active_casts=0;
int total_casts=0;
QString keyname=q->value(1).toString();
//
// Feed Attributes
//
d_feed_ids[row]=q->value(0).toUInt();
d_key_names[row]=q->value(1).toString();
d_texts[row][0]=keyname; // Key Name
if(q->value(12).isNull()) {
d_icons[row][0]=rda->iconEngine()->
applicationIcon(RDIconEngine::RdCastManager,32);
}
else {
d_icons[row][0]=
QImage::fromData(q->value(12).toByteArray()).
scaled(32,32,Qt::IgnoreAspectRatio,Qt::SmoothTransformation);
}
d_texts[row][1]=q->value(2); // Title
if(q->value(3).toString()=="Y") {
d_texts[row][2]=tr("[superfeed]");
}
else {
d_texts[row][2]="0 / 0"; // Casts
}
d_texts[row][3]=q->value(7).toDate().toString("MM/dd/yyyy"); // Creation Date
d_texts[row][4]=q->value(3).toString(); // Autopost
d_texts[row][5]=q->value(4).toString(); // Superfeed
d_texts[row][6]=RDFeed::publicUrl(q->value(6).toString(),keyname);
//
// Cast Attributes
//
d_cast_texts[row].clear();
d_cast_ids[row].clear();
d_cast_icons[row].clear();
QList<QVariant> list;
for(int i=0;i<columnCount();i++) {
list.push_back(QVariant());
}
do {
if(q->value(8).isNull()) {
return; // No casts!
}
// Process
total_casts++;
d_cast_ids[row].push_back(q->value(8).toUInt());
switch((RDPodcast::Status)q->value(10).toUInt()) {
case RDPodcast::StatusPending:
d_cast_icons[row].push_back(rda->iconEngine()->
listIcon(RDIconEngine::BlueBall));
break;
case RDPodcast::StatusActive:
d_cast_icons[row].push_back(rda->iconEngine()->
listIcon(RDIconEngine::GreenBall));
active_casts++;
break;
case RDPodcast::StatusExpired:
d_cast_icons[row].push_back(rda->iconEngine()->
listIcon(RDIconEngine::WhiteBall));
break;
}
d_cast_texts[row].push_back(list);
d_cast_texts[row].back()[1]=q->value(9); // Item Title
d_cast_texts[row].back()[3]=
q->value(11).toDateTime().toString("MM/dd/yyyy");
} while(q->next()&&(q->value(1).toString()==keyname));
q->previous();
if(q->value(3).toString()=="Y") {
d_texts[row][2]=tr("[superfeed]");
}
else {
d_texts[row][2]=
QString().sprintf("%d / %d",active_casts,total_casts); // Casts
}
}
QString RDFeedListModel::sqlFields() const
{
QString sql=QString("select ")+
"FEEDS.ID,"+ // 00
"FEEDS.KEY_NAME,"+ // 01
"FEEDS.CHANNEL_TITLE,"+ // 02
"FEEDS.ENABLE_AUTOPOST,"+ // 03
"FEEDS.IS_SUPERFEED,"+ // 04
"FEEDS.ID,"+ // 05
"FEEDS.BASE_URL,"+ // 06
"FEEDS.ORIGIN_DATETIME,"+ // 07
"PODCASTS.ID,"+ // 08
"PODCASTS.ITEM_TITLE,"+ // 09
"PODCASTS.STATUS,"+ // 10
"PODCASTS.ORIGIN_DATETIME,"+ // 11
"FEED_IMAGES.DATA "+ // 12
"from FEEDS left join FEED_IMAGES "+
"on FEEDS.CHANNEL_IMAGE_ID=FEED_IMAGES.ID left join PODCASTS "+
"on FEEDS.ID=PODCASTS.FEED_ID ";
return sql;
}
QByteArray RDFeedListModel::DumpIndex(const QModelIndex &index,const QString &caption) const
{
QByteArray ret;
if(!caption.isEmpty()) {
ret+=(caption+": ").toUtf8();
}
if(index.isValid()) {
ret+=QString().sprintf("QModelIndex(%d,%d,%llu)",
index.row(),index.column(),index.internalId()).
toUtf8();
}
else {
ret+=QString("QModelIndex()").toUtf8();
}
return ret;
}