Merge branch 'issue-1160'

FIXES #1160

CHANGES

@@ -15,6 +15,10 @@ This release contains contributions from (alphabetically by first name):
  - *branding* now supports os-release variables in the *strings* section,
    which allows re-using (at runtime) information set in /etc/os-release .
    This requires KDE Frameworks 5.58. #1150
+ - *branding* allows the use of FreeDesktop.org icon names for the
+   *productLogo* and *productIcon* keys. If a file is named there, then
+   the file is used, and otherwise the icon is looked up in the current
+   theme.
 
 # 3.2.8 (2019-05-10) #
 

src/libcalamaresui/Branding.cpp

@@ -1,7 +1,7 @@
 /* === This file is part of Calamares - <https://github.com/calamares> ===
  *
  *   Copyright 2014-2015, Teo Mrnjavac <teo@kde.org>
- *   Copyright 2017-2018, Adriaan de Groot <groot@kde.org>
+ *   Copyright 2017-2019, Adriaan de Groot <groot@kde.org>
  *   Copyright 2018, Raul Rodrigo Segura (raurodse)
  *
  *   Calamares is free software: you can redistribute it and/or modify
@@ -29,6 +29,7 @@
 
 #include <QDir>
 #include <QFile>
+#include <QIcon>
 #include <QPixmap>
 #include <QVariantMap>
 
@@ -185,9 +186,16 @@ Branding::Branding( const QString& brandingFilePath,
             loadStrings( m_images, doc, "images",
                 [&]( const QString& s ) -> QString
                 {
-                    QFileInfo imageFi( componentDir.absoluteFilePath( expand( s ) ) );
+                    const QString imageName( expand( s ) );
+                    QFileInfo imageFi( componentDir.absoluteFilePath( imageName ) );
                     if ( !imageFi.exists() )
-                        bail( QString( "Image file %1 does not exist." ).arg( imageFi.absoluteFilePath() ) );
+                    {
+                        const auto icon = QIcon::fromTheme( imageName );
+                        // Not found, bail out with the filename used
+                        if ( icon.isNull() )
+                            bail( QString( "Image file %1 does not exist." ).arg( imageFi.absoluteFilePath() ) );
+                        return imageName;  // Not turned into a path
+                    }
                     return  imageFi.absoluteFilePath();
                 }
                 );
@@ -289,15 +297,21 @@ Branding::imagePath( Branding::ImageEntry imageEntry ) const
 QPixmap
 Branding::image( Branding::ImageEntry imageEntry, const QSize& size ) const
 {
-    QPixmap pixmap =
-        ImageRegistry::instance()->pixmap( imagePath( imageEntry ), size );
+    const auto path = imagePath( imageEntry );
+    if ( path.contains( '/' ) )
+    {
+        QPixmap pixmap = ImageRegistry::instance()->pixmap( path, size );
 
-    if ( pixmap.isNull() )
+        Q_ASSERT( !pixmap.isNull() );
+        return pixmap;
+    }
+    else
     {
-        Q_ASSERT( false );
-        return QPixmap();
+        auto icon = QIcon::fromTheme(path);
+
+        Q_ASSERT( !icon.isNull() );
+        return icon.pixmap( size );
     }
-    return pixmap;
 }
 
 QString

src/libcalamaresui/utils/ImageRegistry.cpp

@@ -61,9 +61,9 @@ ImageRegistry::cacheKey( const QSize& size, float opacity, QColor tint )
 QPixmap
 ImageRegistry::pixmap( const QString& image, const QSize& size, CalamaresUtils::ImageMode mode, float opacity, QColor tint )
 {
+    Q_ASSERT( !(size.width() < 0 || size.height() < 0) );
     if ( size.width() < 0 || size.height() < 0 )
     {
-        Q_ASSERT( false );
         return QPixmap();
     }
 
@@ -159,15 +159,9 @@ ImageRegistry::putInCache( const QString& image, const QSize& size, CalamaresUti
     if ( s_cache.contains( image ) )
     {
         subcache = s_cache.value( image );
-
         if ( subcache.contains( mode ) )
         {
             subsubcache = subcache.value( mode );
-
-/*            if ( subsubcache.contains( size.width() * size.height() ) )
-            {
-                Q_ASSERT( false );
-            }*/
         }
     }