Noto fonts added needed for Chinese symbols + fontconfig setup changed

to use a fontconfig cache

.gitignore

@@ -6,5 +6,6 @@ rcc
 lib
 bin
 plugins
+fontconfig
 qvg
 *.swp

support/SkinnyFont.cpp

@@ -4,44 +4,35 @@
  *****************************************************************************/
 
 #include "SkinnyFont.h"
-#include <QtGlobal>
+
 #include <QFontDatabase>
-#include <QTemporaryDir>
-#include <QFile>
 #include <QGuiApplication>
+#include <QElapsedTimer>
+#include <QDebug>
 
-static void foolFontconfig()
-{
-    // as the examples are always using the same fonts, we can disable
-    // everything, that has to do with system fonts
-
-    static QTemporaryDir dir;
-
-    QString fontConfig =
-        "<?xml version=\"1.0\"?>\n"
-        "<!DOCTYPE fontconfig SYSTEM \"fonts.dtd\">\n"
-        "<fontconfig>\n"
-            "\t<dir>%1</dir>\n"
-            "\t<cachedir>%2/cache</cachedir>\n"
-        "</fontconfig>\n";
-    fontConfig = fontConfig.arg( dir.path(), dir.path() );
-
-    QFile f( dir.path() + "/fonts.conf" );
-    f.open( QIODevice::WriteOnly );
-    f.write( fontConfig.toUtf8() );
-    f.close();
-
-    qputenv( "FONTCONFIG_FILE", f.fileName().toUtf8() );
-
-    QFontDatabase();
-}
+#define STRINGIFY(x) #x
+#define STRING(x) STRINGIFY(x)
 
 void SkinnyFont::init( QGuiApplication* )
 {
-    foolFontconfig();
+#ifdef FONTCONFIG_FILE
+    const char env[] = "FONTCONFIG_FILE";
+    if ( !qEnvironmentVariableIsSet( env ) )
+        qputenv( env, STRING( FONTCONFIG_FILE ) );
+#endif
 
-    QFontDatabase::addApplicationFont( ":/fonts/Roboto-Regular.ttf" );
-    QFontDatabase::addApplicationFont( ":/fonts/DejaVuSans.ttf" );
+    QElapsedTimer timer;
+    timer.start();
+
+    QFontDatabase();
+
+    const auto elapsed = timer.elapsed();
+
+    if ( elapsed > 20 )
+    {
+        qWarning() << "Loading fonts needed" << elapsed << "ms.";
+        qWarning() << "Probably because of creating a font cache.";
+    }
 
     /*
         The default initialization in QskSkin sets up its font table

support/fonts.conf.in

@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
+
+<fontconfig>
+
+	<dir>FONTDIR</dir>
+	<cachedir>FONTCACHEDIR/cache</cachedir>
+
+</fontconfig>

support/fonts.qrc

@@ -1,6 +0,0 @@
-<RCC>
-    <qresource prefix="/">
-        <file>fonts/DejaVuSans.ttf</file>
-        <file>fonts/Roboto-Regular.ttf</file>
-    </qresource>
-</RCC>

support/support.pro

@@ -10,7 +10,9 @@ TARGET   = qsktestsupport
 DESTDIR  = $${QSK_OUT_ROOT}/lib
 
 QT += quick 
+
 CONFIG += ensure_skins
+CONFIG += fontconfig
 
 contains(QSK_CONFIG, QskDll) {
 
@@ -43,9 +45,6 @@ SOURCES += \
     SkinnyShapeProvider.cpp \
     SkinnyShortcut.cpp
 
-RESOURCES += \
-    fonts.qrc 
-
 DEFINES += PLUGIN_PATH=$$clean_path( $$QSK_PLUGIN_DIR )
 
 ensure_skins {
@@ -62,3 +61,26 @@ ensure_skins {
     LIBS *= -L$${QSK_PLUGIN_DIR}/skins -lsquiekskin -lmaterialskin
 }
 
+fontconfig {
+
+    QSK_FONTDIR=$${PWD}/fonts
+    QSK_FONTCACHEDIR=$${OUT_PWD}/fontconfig
+    QSK_FONTCONF_FILE=$${QSK_FONTCACHEDIR}/fonts.conf
+
+    QSK_FONTCONF_DATA = "$$cat( $${PWD}/fonts.conf.in, false )"
+    QSK_FONTCONF_DATA = $$replace(QSK_FONTCONF_DATA, FONTCACHEDIR, $${QSK_FONTCACHEDIR} )
+    QSK_FONTCONF_DATA = $$replace(QSK_FONTCONF_DATA, FONTDIR, $${QSK_FONTDIR} )
+    write_file( $${QSK_FONTCONF_FILE}, QSK_FONTCONF_DATA )
+
+    DEFINES += FONTCONFIG_FILE=$$clean_path( $$QSK_FONTCONF_FILE )
+
+    linux {
+        
+        fontcache.target = $${QSK_FONTCACHEDIR}/cache
+        fontcache.depends = $${QSK_FONTCONF_FILE}
+        fontcache.commands = FONTCONFIG_FILE=$${QSK_FONTCONF_FILE} fc-cache -v
+
+        QMAKE_EXTRA_TARGETS += fontcache
+        PRE_TARGETDEPS += $${QSK_FONTCACHEDIR}/cache
+    }
+}