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pollymc/launcher/icons/IconList.cpp

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/* Copyright 2013-2021 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "IconList.h"
#include <FileSystem.h>
#include <QMap>
#include <QEventLoop>
#include <QMimeData>
#include <QUrl>
#include <QFileSystemWatcher>
#include <QSet>
#include <QDebug>
#define MAX_SIZE 1024
IconList::IconList(const QStringList &builtinPaths, QString path, QObject *parent) : QAbstractListModel(parent)
{
QSet<QString> builtinNames;
// add builtin icons
for(auto & builtinPath: builtinPaths)
{
QDir instance_icons(builtinPath);
auto file_info_list = instance_icons.entryInfoList(QDir::Files, QDir::Name);
for (auto file_info : file_info_list)
{
builtinNames.insert(file_info.completeBaseName());
}
}
for(auto & builtinName : builtinNames)
{
addThemeIcon(builtinName);
}
m_watcher.reset(new QFileSystemWatcher());
is_watching = false;
connect(m_watcher.get(), SIGNAL(directoryChanged(QString)),
SLOT(directoryChanged(QString)));
connect(m_watcher.get(), SIGNAL(fileChanged(QString)), SLOT(fileChanged(QString)));
directoryChanged(path);
// Forces the UI to update, so that lengthy icon names are shown properly from the start
emit iconUpdated({});
}
void IconList::directoryChanged(const QString &path)
{
QDir new_dir (path);
if(m_dir.absolutePath() != new_dir.absolutePath())
{
m_dir.setPath(path);
m_dir.refresh();
if(is_watching)
stopWatching();
startWatching();
}
if(!m_dir.exists())
if(!FS::ensureFolderPathExists(m_dir.absolutePath()))
return;
m_dir.refresh();
auto new_list = m_dir.entryList(QDir::Files, QDir::Name);
for (auto it = new_list.begin(); it != new_list.end(); it++)
{
QString &foo = (*it);
foo = m_dir.filePath(foo);
}
auto new_set = new_list.toSet();
QList<QString> current_list;
for (auto &it : icons)
{
if (!it.has(IconType::FileBased))
continue;
current_list.push_back(it.m_images[IconType::FileBased].filename);
}
QSet<QString> current_set = current_list.toSet();
QSet<QString> to_remove = current_set;
to_remove -= new_set;
QSet<QString> to_add = new_set;
to_add -= current_set;
for (auto remove : to_remove)
{
qDebug() << "Removing " << remove;
QFileInfo rmfile(remove);
QString key = rmfile.completeBaseName();
QString suffix = rmfile.suffix();
// The icon doesnt have a suffix, but it can have other .s in the name, so we account for those as well
if (suffix != "jpeg" && suffix != "png" && suffix != "jpg" && suffix != "ico" && suffix != "svg" && suffix != "gif")
key = rmfile.fileName();
int idx = getIconIndex(key);
if (idx == -1)
continue;
icons[idx].remove(IconType::FileBased);
if (icons[idx].type() == IconType::ToBeDeleted)
{
beginRemoveRows(QModelIndex(), idx, idx);
icons.remove(idx);
reindex();
endRemoveRows();
}
else
{
dataChanged(index(idx), index(idx));
}
m_watcher->removePath(remove);
emit iconUpdated(key);
}
for (auto add : to_add)
{
qDebug() << "Adding " << add;
QFileInfo addfile(add);
QString key = addfile.completeBaseName();
QString suffix = addfile.suffix();
// The icon doesnt have a suffix, but it can have other .s in the name, so we account for those as well
if (suffix != "jpeg" && suffix != "png" && suffix != "jpg" && suffix != "ico" && suffix != "svg" && suffix != "gif")
key = addfile.fileName();
if (addIcon(key, QString(), addfile.filePath(), IconType::FileBased))
{
m_watcher->addPath(add);
emit iconUpdated(key);
}
}
}
void IconList::fileChanged(const QString &path)
{
qDebug() << "Checking " << path;
QFileInfo checkfile(path);
if (!checkfile.exists())
return;
QString key = checkfile.completeBaseName();
int idx = getIconIndex(key);
if (idx == -1)
return;
QIcon icon(path);
if (!icon.availableSizes().size())
return;
icons[idx].m_images[IconType::FileBased].icon = icon;
dataChanged(index(idx), index(idx));
emit iconUpdated(key);
}
void IconList::SettingChanged(const Setting &setting, QVariant value)
{
if(setting.id() != "IconsDir")
return;
directoryChanged(value.toString());
}
void IconList::startWatching()
{
auto abs_path = m_dir.absolutePath();
FS::ensureFolderPathExists(abs_path);
is_watching = m_watcher->addPath(abs_path);
if (is_watching)
{
qDebug() << "Started watching " << abs_path;
}
else
{
qDebug() << "Failed to start watching " << abs_path;
}
}
void IconList::stopWatching()
{
m_watcher->removePaths(m_watcher->files());
m_watcher->removePaths(m_watcher->directories());
is_watching = false;
}
QStringList IconList::mimeTypes() const
{
QStringList types;
types << "text/uri-list";
return types;
}
Qt::DropActions IconList::supportedDropActions() const
{
return Qt::CopyAction;
}
bool IconList::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent)
{
if (action == Qt::IgnoreAction)
return true;
// check if the action is supported
if (!data || !(action & supportedDropActions()))
return false;
// files dropped from outside?
if (data->hasUrls())
{
auto urls = data->urls();
QStringList iconFiles;
for (auto url : urls)
{
// only local files may be dropped...
if (!url.isLocalFile())
continue;
iconFiles += url.toLocalFile();
}
installIcons(iconFiles);
return true;
}
return false;
}
Qt::ItemFlags IconList::flags(const QModelIndex &index) const
{
Qt::ItemFlags defaultFlags = QAbstractListModel::flags(index);
if (index.isValid())
return Qt::ItemIsDropEnabled | defaultFlags;
else
return Qt::ItemIsDropEnabled | defaultFlags;
}
QVariant IconList::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
return QVariant();
int row = index.row();
if (row < 0 || row >= icons.size())
return QVariant();
switch (role)
{
case Qt::DecorationRole:
return icons[row].icon();
case Qt::DisplayRole:
return icons[row].name();
case Qt::UserRole:
return icons[row].m_key;
default:
return QVariant();
}
}
int IconList::rowCount(const QModelIndex &parent) const
{
return icons.size();
}
void IconList::installIcons(const QStringList &iconFiles)
{
for (QString file : iconFiles)
{
QFileInfo fileinfo(file);
if (!fileinfo.isReadable() || !fileinfo.isFile())
continue;
QString target = FS::PathCombine(getDirectory(), fileinfo.fileName());
QString suffix = fileinfo.suffix();
if (suffix != "jpeg" && suffix != "png" && suffix != "jpg" && suffix != "ico" && suffix != "svg" && suffix != "gif")
continue;
if (!QFile::copy(file, target))
continue;
}
}
void IconList::installIcon(const QString &file, const QString &name)
{
QFileInfo fileinfo(file);
if(!fileinfo.isReadable() || !fileinfo.isFile())
return;
QString target = FS::PathCombine(getDirectory(), name);
QFile::copy(file, target);
}
bool IconList::iconFileExists(const QString &key) const
{
auto iconEntry = icon(key);
if(!iconEntry)
{
return false;
}
return iconEntry->has(IconType::FileBased);
}
const MMCIcon *IconList::icon(const QString &key) const
{
int iconIdx = getIconIndex(key);
if (iconIdx == -1)
return nullptr;
return &icons[iconIdx];
}
bool IconList::deleteIcon(const QString &key)
{
int iconIdx = getIconIndex(key);
if (iconIdx == -1)
return false;
auto &iconEntry = icons[iconIdx];
if (iconEntry.has(IconType::FileBased))
{
return QFile::remove(iconEntry.m_images[IconType::FileBased].filename);
}
return false;
}
bool IconList::addThemeIcon(const QString& key)
{
auto iter = name_index.find(key);
if (iter != name_index.end())
{
auto &oldOne = icons[*iter];
oldOne.replace(Builtin, key);
dataChanged(index(*iter), index(*iter));
return true;
}
else
{
// add a new icon
beginInsertRows(QModelIndex(), icons.size(), icons.size());
{
MMCIcon mmc_icon;
mmc_icon.m_name = key;
mmc_icon.m_key = key;
mmc_icon.replace(Builtin, key);
icons.push_back(mmc_icon);
name_index[key] = icons.size() - 1;
}
endInsertRows();
return true;
}
}
bool IconList::addIcon(const QString &key, const QString &name, const QString &path, const IconType type)
{
// replace the icon even? is the input valid?
QIcon icon(path);
if (icon.isNull())
return false;
auto iter = name_index.find(key);
if (iter != name_index.end())
{
auto &oldOne = icons[*iter];
oldOne.replace(type, icon, path);
dataChanged(index(*iter), index(*iter));
return true;
}
else
{
// add a new icon
beginInsertRows(QModelIndex(), icons.size(), icons.size());
{
MMCIcon mmc_icon;
mmc_icon.m_name = name;
mmc_icon.m_key = key;
mmc_icon.replace(type, icon, path);
icons.push_back(mmc_icon);
name_index[key] = icons.size() - 1;
}
endInsertRows();
return true;
}
}
void IconList::saveIcon(const QString &key, const QString &path, const char * format) const
{
auto icon = getIcon(key);
auto pixmap = icon.pixmap(128, 128);
pixmap.save(path, format);
}
void IconList::reindex()
{
name_index.clear();
int i = 0;
for (auto &iter : icons)
{
name_index[iter.m_key] = i;
i++;
}
}
QIcon IconList::getIcon(const QString &key) const
{
int icon_index = getIconIndex(key);
if (icon_index != -1)
return icons[icon_index].icon();
// Fallback for icons that don't exist.
icon_index = getIconIndex("grass");
if (icon_index != -1)
return icons[icon_index].icon();
return QIcon();
}
int IconList::getIconIndex(const QString &key) const
{
auto iter = name_index.find(key == "default" ? "grass" : key);
if (iter != name_index.end())
return *iter;
return -1;
}
QString IconList::getDirectory() const
{
return m_dir.absolutePath();
}
//#include "IconList.moc"
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