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PreviewSettingsPage: update JPG preview plugin settings if needed

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In KDE <= 4.6, the 'jpegrotatedthumbnail' plugin was used to provide
thumbnails for JPG images which are rotated correctly. In KDE 4.7, this
is done by the usual 'jpegthumbnail' plugin if it is configured
accordingly. The update of the settings is done in KFilePreviewGenerator.
However, if Konqueror is run in web browsing mode and the settings dialog
is opened, KFilePreviewGenerator does not have a chance to do the update.
To make sure that the correct plugins are shown in the settings, this
commit adds a plugin update to PreviewSettingsPage.

The old code that just removed the 'jpegrotatedthumbnail' plugin without
enabling the 'jpegthumbnail' plugin is removed.

CCBUG:277251
(cherry picked from commit 626fb3cf58)
This commit is contained in:
Frank Reininghaus 2011-07-10 15:33:16 +02:00
parent 61da3d924c
commit f19ad8ee41
1 changed files with 13 additions and 12 deletions
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25
src/settings/general/previewssettingspage.cpp
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@ -187,18 +187,6 @@ void PreviewsSettingsPage::loadPreviewPlugins()
foreach (const KSharedPtr<KService>& service, plugins) {
const bool configurable = service->property("Configurable", QVariant::Bool).toBool();
const bool show = m_enabledPreviewPlugins.contains(service->desktopEntryName());
if (service->desktopEntryName() == QLatin1String("jpegrotatedthumbnail")) {
// Before KDE SC 4.7 thumbnail plugins where not configurable and in addition to
// the jpegthumbnail-plugin a jpegrotatedthumbnail-plugin was offered. Make this
// plugin obsolete for users that updated from a previous KDE SC version:
if (show) {
m_enabledPreviewPlugins.removeOne(service->desktopEntryName());
KConfigGroup globalConfig(KGlobal::config(), QLatin1String("PreviewSettings"));
globalConfig.writeEntry("Plugins", m_enabledPreviewPlugins);
globalConfig.sync();
}
continue;
}
model->insertRow(0);
const QModelIndex index = model->index(0, 0);
@ -219,6 +207,19 @@ void PreviewsSettingsPage::loadSettings()
<< QLatin1String("imagethumbnail")
<< QLatin1String("jpegthumbnail"));
// If the user is upgrading from KDE <= 4.6, we must check if he had the 'jpegrotatedthumbnail' plugin enabled.
// This plugin does not exist any more in KDE >= 4.7, so we have to replace it with the 'jpegthumbnail' plugin.
//
// Note that the upgrade to the correct plugin is done already in KFilePreviewGenerator. However, if Konqueror is
// opened in web browsing mode and the Settings dialog is opened, we might end up here before KFilePreviewGenerator's
// constructor is ever called -> the plugin replacement should be done here as well.
if(m_enabledPreviewPlugins.contains(QLatin1String("jpegrotatedthumbnail"))) {
m_enabledPreviewPlugins.removeAll(QLatin1String("jpegrotatedthumbnail"));
m_enabledPreviewPlugins.append(QLatin1String("jpegthumbnail"));
globalConfig.writeEntry("Plugins", m_enabledPreviewPlugins);
globalConfig.sync();
}
const int maxLocalByteSize = globalConfig.readEntry("MaximumSize", MaxLocalPreviewSize * 1024 * 1024);
const int maxLocalMByteSize = maxLocalByteSize / (1024 * 1024);
m_localFileSizeBox->setValue(maxLocalMByteSize);