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ObjectSave: load and save ok

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This commit is contained in:
Louis-Joseph Fournier 2016-01-08 14:42:51 +01:00
parent 0cbf96b221
commit 68b93e35b0
1 changed files with 64 additions and 5 deletions
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69
src/ObjectSaver.cpp
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@ -18,13 +18,17 @@
#include <QDebug>
#include <QDir>
#include <QFile>
#include <QMetaObject>
#include <QMetaProperty>
#include <QStandardPaths>
#include <QString>
#include <iostream>
#include "ObjectSaver.hpp"
#define name_(x) #x
#define name(x) name_(x)
#define NAME name(TARGET)
#define program_name_(x) #x
#define program_name(x) program_name_(x)
#define PROGRAM_NAME program_name(TARGET)
ObjectSaver::ObjectSaver() :
object(NULL)
@ -76,9 +80,9 @@ QFile * ObjectSaver::getDataFile(bool is_write)
}
if (is_write) {
QDir dir(qDataDir);
dir.mkpath(NAME);
dir.mkpath(PROGRAM_NAME);
}
QString path = qDataDir + "/" + NAME + "/" + filename;
QString path = qDataDir + "/" + PROGRAM_NAME + "/" + filename;
QFile *file = new QFile(path);
@ -95,18 +99,73 @@ QFile * ObjectSaver::getDataFile(bool is_write)
return file;
}
/// which types we manage
static bool type_ok(QVariant::Type type)
{
switch (type) {
case QVariant::Int:
case QVariant::Double:
case QVariant::String:
return true;
default:
return false;
}
}
void ObjectSaver::load()
{
QFile *file = getDataFile(false);
if (!file) return;
// load object from file
QMetaProperty property;
const QMetaObject *meta = object->metaObject();
QString title, value;
const char *t;
int offset;
char c;
while (!file->atEnd()) {
title = file->readLine(100).trimmed();
t = title.toStdString().c_str();
offset = meta->indexOfProperty(t);
if (offset != -1 && !file->atEnd() && type_ok(meta->property(offset).type())) {
value = file->readLine(100).trimmed();
if (!object->setProperty(t, value /*value.toInt(&ok, 10)*/)) {
qDebug() << __func__ << " set property " << title << " to " << value << " failed";
}
else {
qDebug() << __func__ << " set property " << title << " to " << value << " ok";
}
}
}
file->close();
delete file;
emit objectChanged();
}
void ObjectSaver::save()
{
qDebug() << __func__;
QFile *file = getDataFile(true);
if (!file) return;
// save object in file
QMetaProperty property;
const QMetaObject *meta = object->metaObject();
for (int i = meta->propertyOffset(); i < meta->propertyCount(); i++) {
property = meta->property(i);
if (!type_ok(property.type())) continue;
file->write(property.name());
file->putChar('\n');
file->write(object->property(property.name()).toByteArray());
file->putChar('\n');
}
file->close();
delete file;
}