KisStorageModel.cpp File Reference

#include "KisStorageModel.h"
#include <QBuffer>
#include <QDir>
#include <QFont>
#include <QSqlError>
#include <QSqlQuery>
#include <KisResourceLocator.h>
#include <KoResourcePaths.h>
#include <KisResourceModelProvider.h>
#include <KisResourceThumbnailCache.h>
#include <QFileInfo>
#include <QSaveFile>
#include <kis_assert.h>
#include <kconfig.h>
#include <kconfiggroup.h>
#include <ksharedconfig.h>
#include <kis_debug.h>

Go to the source code of this file.

Classes
struct	KisStorageModel::Private

Functions
QString	findUnusedName (QString location, QString filename)

Function Documentation

findUnusedName()

QString findUnusedName	(	QString	location,
		QString	filename )

Definition at line 361 of file KisStorageModel.cpp.

{
    // the Save Incremental Version incrementation in KisViewManager is way too complex for this task
    // and in that case there is a specific file to increment, while here we need to find just
    // an unused filename
    QFileInfo info = QFileInfo(location + "/" + filename);
    if (!info.exists()) {
        return filename;
    }
 
    QString extension = info.suffix();
    QString filenameNoExtension = filename.left(filename.length() - extension.length());
 
 
    QDir dir = QDir(location);
    QStringList similarEntries = dir.entryList(QStringList() << filenameNoExtension + "*");
 
    QList<int> versions;
    int maxVersionUsed = -1;
    for (int i = 0; i < similarEntries.count(); i++) {
        QString entry = similarEntries[i];
        //QFileInfo fi = QFileInfo(entry);
        if (!entry.endsWith(extension)) {
            continue;
        }
        QString versionStr = entry.right(entry.length() - filenameNoExtension.length()); // strip the common part
        versionStr = versionStr.left(versionStr.length() - extension.length());
        if (!versionStr.startsWith("_")) {
            continue;
        }
        versionStr = versionStr.right(versionStr.length() - 1); // strip '_'
        // now the part left should be a number
        bool ok;
        int version = versionStr.toInt(&ok);
        if (!ok) {
            continue;
        }
        if (version > maxVersionUsed) {
            maxVersionUsed = version;
        }
    }
 
    int versionToUse = maxVersionUsed > -1 ? maxVersionUsed + 1 : 1;
    int versionStringLength = 3;
    QString baseNewVersion = QString::number(versionToUse);
    while (baseNewVersion.length() < versionStringLength) {
        baseNewVersion.prepend("0");
    }
 
    QString newFilename = filenameNoExtension + "_" + QString::number(versionToUse) + extension;
    bool success = !QFileInfo(location + "/" + newFilename).exists();
 
    if (!success) {
        qCritical() << "The new filename for the bundle does exist." << newFilename;
    }
 
    return newFilename;
 
}