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Elements collection cache can fully fetch and cache element data from elementLocation

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git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@4323 bfdf4180-ca20-0410-9c96-a3a8aa849046
This commit is contained in:
blacksun
2016-01-14 16:09:28 +00:00
parent c2318c07cb
commit bc7f75c1da
2 changed files with 42 additions and 4 deletions
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40
sources/elementscollectioncache.cpp
View File

@@ -21,9 +21,12 @@
#include "elementdefinition.h"
#include "factory/elementfactory.h"
#include "element.h"
#include <QImageWriter>
#include "qet.h"
#include <QImageWriter>
#include <QSqlQuery>
#include <QSqlError>
/**
Construct a cache for elements collections.
@param database_path Path of the SQLite database to open.
@@ -215,12 +218,21 @@ bool ElementsCollectionCache::fetchElement(ElementDefinition *element)
}
}
/**
* @brief ElementsCollectionCache::fetchElement
* Retrieve the data for a given element, using the cache if available,
* filling it otherwise. Data are then available through pixmap() and name() methods
* @param location The definition of an element
* @see pixmap()
* @see name()
* @return True if the retrieval succeeded, false otherwise
*/
bool ElementsCollectionCache::fetchElement(ElementLocation location)
{
if (fetchNameFromCache(location.collectionPath(), location.uuid()) &&
fetchPixmapFromCache(location.collectionPath(), location.uuid()))
return true;
else if (fetchData(ElementsLocation(location.collectionPath())))
else if (fetchData(location))
{
cacheName(location.collectionPath(), location.uuid());
cachePixmap(location.collectionPath(), location.uuid());
@@ -263,6 +275,30 @@ bool ElementsCollectionCache::fetchData(const ElementsLocation &location) {
return(!state);
}
/**
* @brief ElementsCollectionCache::fetchData
* Retrieve the data by building the full CustomElement object matching the given location,
* without using the cache. Data are then available through pixmap() and name() methods
* @param location : location of a given element
* @return True if the retrieval succeeded, false otherwise
*/
bool ElementsCollectionCache::fetchData(ElementLocation &location)
{
int state;
Element *element = ElementFactory::Instance()->createElement(location, 0, &state);
if(state)
qDebug() << "ElementsCollectionCache::fetchData() 2: Le chargement du composant" << qPrintable(location.fileSystemPath()) << "a echoue avec le code d'erreur" << state;
else
{
current_name_ = element->name();
current_pixmap_ = element->pixmap();
}
delete element;
return (!state);
}
/**
* @brief ElementsCollectionCache::fetchNameFromCache
* Retrieve the name for an element, given its path and uuid

6
sources/elementscollectioncache.h
View File

@@ -17,10 +17,11 @@
*/
#ifndef ELEMENTS_COLLECTION_CACHE_H
#define ELEMENTS_COLLECTION_CACHE_H
#include <QtCore>
#include <QtSql>
#include <QSqlDatabase>
#include "elementslocation.h"
#include "elementlocation.h"
class ElementsCollection;
class ElementsCategory;
class ElementDefinition;
@@ -50,6 +51,7 @@ class ElementsCollectionCache : public QObject
QString name() const;
QPixmap pixmap() const;
bool fetchData(const ElementsLocation &);
bool fetchData(ElementLocation &location);
bool fetchNameFromCache(const QString &path, const QUuid &uuid);
bool fetchPixmapFromCache(const QString &path, const QUuid &uuid);
bool cacheName(const QString &path, const QUuid &uuid = QUuid::createUuid());