Cleanup the lumina-theme-engine subproject

1. Use the built-in OS-detect.pri for build settings
2. Remove the "DISABLE_WIDGETS" flag (desktop always needs it)
3. Clean up the multi-path search routines for qss/color files
4. Add some color files to the default install

7 files changed, 34 insertions, 27 deletions

diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.cpp
index 4d585409..af130ed5 100644
--- a/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.cpp
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.cpp
@@ -190,8 +190,7 @@ void AppearancePage::readSettings(){
   m_ui->customPaletteButton->setChecked(settings.value("custom_palette", false).toBool());
   QString colorSchemePath = settings.value("color_scheme_path").toString();
   QDir("/").mkpath(lthemeengine::userColorSchemePath());
-  findColorSchemes(lthemeengine::userColorSchemePath());
-  findColorSchemes(lthemeengine::sharedColorSchemePath().join(", "));
+  findColorSchemes( QStringList() << lthemeengine::userColorSchemePath() << lthemeengine::sharedColorSchemePath());
   if(m_ui->colorSchemeComboBox->count() == 0){
     m_customPalette = palette(); //load fallback palette
     }
@@ -223,12 +222,15 @@ void AppearancePage::setPalette(QWidget *w, QPalette p){
   w->setPalette(p);
 }
 
-void AppearancePage::findColorSchemes(const QString &path){
-  QDir dir(path);
-  dir.setFilter(QDir::Files);
-  dir.setNameFilters(QStringList() << "*.conf");
-  foreach (QFileInfo info, dir.entryInfoList()){
-    m_ui->colorSchemeComboBox->addItem(info.baseName(), info.filePath());
+void AppearancePage::findColorSchemes(const QStringList &paths){
+  for(int i=0; i<paths.length(); i++){
+    if( !QFile::exists(paths[i])){ continue; }
+    QDir dir(paths[i]);
+    dir.setFilter(QDir::Files);
+    dir.setNameFilters(QStringList() << "*.conf");
+    foreach (QFileInfo info, dir.entryInfoList()){
+      m_ui->colorSchemeComboBox->addItem(info.baseName(), info.filePath());
+      }
     }
 }
 
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.h b/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.h
index 23bab52f..21eb5a6d 100644
--- a/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.h
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.h
@@ -35,7 +35,7 @@ private:
     void readSettings();
     void setStyle(QWidget *w, QStyle *s);
     void setPalette(QWidget *w, QPalette p);
-    void findColorSchemes(const QString &path);
+    void findColorSchemes(const QStringList &paths);
     QPalette loadColorScheme(const QString &filePath);
     void createColorScheme(const QString &name, const QPalette &palette);
     Ui::AppearancePage *m_ui;
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/lthemeengine.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/lthemeengine.cpp
index 36b0c2fa..fdeb8966 100644
--- a/src-qt5/core/lumina-theme-engine/src/lthemeengine/lthemeengine.cpp
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/lthemeengine.cpp
@@ -6,6 +6,7 @@
 #define LTHEMEENGINE_DATADIR "/usr/local/share"
 #endif
 
+#include <QDebug>
 
 QString lthemeengine::configPath(){
   return QDir::homePath() + "/.config/lthemeengine/";
@@ -46,7 +47,8 @@ QStringList lthemeengine::sharedStyleSheetPath(){
   QStringList dirs;
   dirs << QString(getenv("XDG_CONFIG_HOME"));
   dirs << QString(getenv("XDG_CONFIG_DIRS")).split(":");
-  for(int i=0; i<dirs.length(); i++){ dirs[i].append("/lthemeengine/colors/"); }
+  dirs << QString(getenv("XDG_DATA_DIRS")).split(":");
+  for(int i=0; i<dirs.length(); i++){ dirs[i].append("/lthemeengine/qss/"); }
   if(dirs.isEmpty()){ dirs << LTHEMEENGINE_DATADIR"/lthemeengine/qss/"; } //no XDG settings - use the hardcoded path
   return dirs;
  }
@@ -59,8 +61,10 @@ QStringList lthemeengine::sharedColorSchemePath(){
   QStringList dirs;
   dirs << QString(getenv("XDG_CONFIG_HOME"));
   dirs << QString(getenv("XDG_CONFIG_DIRS")).split(":");
+  dirs << QString(getenv("XDG_DATA_DIRS")).split(":");
   for(int i=0; i<dirs.length(); i++){ dirs[i].append("/lthemeengine/colors/"); }
   if(dirs.isEmpty()){ dirs << LTHEMEENGINE_DATADIR"/lthemeengine/colors/"; } //no XDG settings - use the hardcoded path
+  qDebug() << "Got Color Dirs:" << dirs;
   return dirs;
 }
 
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/lthemeengine.pro b/src-qt5/core/lumina-theme-engine/src/lthemeengine/lthemeengine.pro
index cc36ee5b..28c97ef8 100644
--- a/src-qt5/core/lumina-theme-engine/src/lthemeengine/lthemeengine.pro
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/lthemeengine.pro
@@ -43,13 +43,12 @@ HEADERS += \
     qsspage.h \
     qsseditordialog.h
 
-!equals (DISABLE_WIDGETS,1) {
    DEFINES += USE_WIDGETS
-}
 
-target.path = $$BINDIR
+TARGET = lthemeengine
+target.path = $${L_BINDIR}
 
 desktop.files = lthemeengine.desktop
-desktop.path = $$DATADIR/applications
+desktop.path = $${L_SHAREDIR}/applications
 
 INSTALLS += target desktop
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/main.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/main.cpp
index 4c1b89fa..b0d5fe08 100644
--- a/src-qt5/core/lumina-theme-engine/src/lthemeengine/main.cpp
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/main.cpp
@@ -23,7 +23,7 @@ int main(int argc, char **argv){
   QStringList errorMessages;
   QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
   if(env.contains("QT_STYLE_OVERRIDE")){ errorMessages << app.translate("main", "Please remove the <b>QT_STYLE_OVERRIDE</b> environment variable"); }
-  if(env.value("QT_QPA_PLATFORMTHEME") != "lthemeengine"){ errorMessages << app.translate("main", "The <b>QT_QPA_PLATFORMTHEME</b> environment variable is not set correctly"); }
+  //if(env.value("QT_QPA_PLATFORMTHEME") != "lthemeengine"){ errorMessages << app.translate("main", "The <b>QT_QPA_PLATFORMTHEME</b> environment variable is not set correctly"); }
   if(!QStyleFactory::keys().contains("lthemeengine-style")){ errorMessages << app.translate("main", "Unable to find <b>liblthemeengine-style.so</b>"); }
   if(!errorMessages.isEmpty()){
     QMessageBox::critical(0, app.translate("main", "Error"), errorMessages.join("<br><br>"));
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.cpp
index d690ef5d..414273be 100644
--- a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.cpp
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.cpp
@@ -95,8 +95,7 @@ void QSSPage::on_removeButton_clicked(){
 void QSSPage::readSettings(){
   //load stylesheets
   m_ui->qssListWidget->clear();
-  findStyleSheets(lthemeengine::userStyleSheetPath());
-  findStyleSheets(lthemeengine::sharedStyleSheetPath().join(", "));
+  findStyleSheets(QStringList() << lthemeengine::userStyleSheetPath() << lthemeengine::sharedStyleSheetPath());
   QSettings settings(lthemeengine::configFile(), QSettings::IniFormat);
   QStringList styleSheets = settings.value("Interface/stylesheets").toStringList();
   for(int i = 0; i < m_ui->qssListWidget->count(); ++i){
@@ -106,16 +105,19 @@ void QSSPage::readSettings(){
     }
 }
 
-void QSSPage::findStyleSheets(const QString &path){
-  QDir dir(path);
-  dir.setFilter(QDir::Files);
-  dir.setNameFilters(QStringList() << "*.qss");
-  foreach (QFileInfo info, dir.entryInfoList()){
-    QListWidgetItem *item = new QListWidgetItem(info.fileName(),  m_ui->qssListWidget);
-    item->setToolTip(info.filePath());
-    item->setData(QSS_FULL_PATH_ROLE, info.filePath());
-    item->setData(QSS_WRITABLE_ROLE, info.isWritable());
+void QSSPage::findStyleSheets(const QStringList &paths){
+  for(int i=0; i<paths.length(); i++){
+    if(!QFile::exists(paths[i])){ continue; }
+    QDir dir(paths[i]);
+    dir.setFilter(QDir::Files);
+    dir.setNameFilters(QStringList() << "*.qss");
+    foreach (QFileInfo info, dir.entryInfoList()){
+      QListWidgetItem *item = new QListWidgetItem(info.fileName(),  m_ui->qssListWidget);
+      item->setToolTip(info.filePath());
+      item->setData(QSS_FULL_PATH_ROLE, info.filePath());
+      item->setData(QSS_WRITABLE_ROLE, info.isWritable());
     }
+  }
 }
 
 void QSSPage::on_renameButton_clicked(){
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.h b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.h
index 1fe0ed73..884f9a93 100644
--- a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.h
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.h
@@ -30,7 +30,7 @@ private slots:
 
 private:
     void readSettings();
-    void findStyleSheets(const QString &path);
+    void findStyleSheets(const QStringList &paths);
     Ui::QSSPage *m_ui;
     QMenu *m_menu;
 };