From af5e7abe46e3b54cc9e938b804e5eeacfe693642 Mon Sep 17 00:00:00 2001
From: triplus <triplus@users.noreply.github.com>
Date: Tue, 17 Mar 2020 14:39:10 +0100
Subject: [PATCH] Use relative path to stylesheet fix #4130

---
 src/Gui/Application.cpp              | 21 ++++++++++++++++++--
 src/Gui/DlgGeneralImp.cpp            | 21 ++++++++++++++++++--
 src/Mod/Start/StartPage/StartPage.py | 29 +++++++++++++++++++++++++---
 3 files changed, 64 insertions(+), 7 deletions(-)

diff --git a/src/Gui/Application.cpp b/src/Gui/Application.cpp
index be4cef5e98a3..c8387c4e9746 100644
--- a/src/Gui/Application.cpp
+++ b/src/Gui/Application.cpp
@@ -2100,8 +2100,25 @@ void Application::runApplication(void)
             style = it->second;
     }
     if (!style.empty()) {
-        QFile f(QLatin1String(style.c_str()));
-        if (f.open(QFile::ReadOnly)) {
+        // Search for stylesheet in user, system and resources location
+        QString user = QString::fromUtf8((App::Application::getUserAppDataDir() + "Gui/Stylesheets/").c_str());
+        QString system = QString::fromUtf8((App::Application::getResourceDir() + "Gui/Stylesheets/").c_str());
+        QString resources = QLatin1String(":/stylesheets/");
+
+        QFile f;
+        if (QFile::exists(user + QLatin1String(style.c_str()))) {
+            f.setFileName(user + QLatin1String(style.c_str()));
+        }
+        else if (QFile::exists(system + QLatin1String(style.c_str()))) {
+            f.setFileName(system + QLatin1String(style.c_str()));
+        }
+        else if (QFile::exists(resources + QLatin1String(style.c_str()))) {
+            f.setFileName(resources + QLatin1String(style.c_str()));
+        }
+        else {
+        }
+
+        if (f.open(QFile::ReadOnly | QFile::Text)) {
             mdi->setBackground(QBrush(Qt::NoBrush));
             QTextStream str(&f);
             qApp->setStyleSheet(str.readAll());
diff --git a/src/Gui/DlgGeneralImp.cpp b/src/Gui/DlgGeneralImp.cpp
index ff893d920edb..35b7cc0df8bc 100644
--- a/src/Gui/DlgGeneralImp.cpp
+++ b/src/Gui/DlgGeneralImp.cpp
@@ -171,7 +171,24 @@ void DlgGeneralImp::saveSettings()
         hGrp->SetASCII("StyleSheet", (const char*)sheet.toByteArray());
 
         if (!sheet.toString().isEmpty()) {
-            QFile f(sheet.toString());
+            // Search for stylesheet in user, system and resources location
+            QString user = QString::fromUtf8((App::Application::getUserAppDataDir() + "Gui/Stylesheets/").c_str());
+            QString system = QString::fromUtf8((App::Application::getResourceDir() + "Gui/Stylesheets/").c_str());
+            QString resources = QLatin1String(":/stylesheets/");
+
+            QFile f;
+            if (QFile::exists(user + sheet.toString())) {
+                f.setFileName(user + sheet.toString());
+            }
+            else if (QFile::exists(system + sheet.toString())) {
+                f.setFileName(system + sheet.toString());
+            }
+            else if (QFile::exists(resources + sheet.toString())) {
+                f.setFileName(resources + sheet.toString());
+            }
+            else {
+            }
+
             if (f.open(QFile::ReadOnly)) {
                 mdi->setBackground(QBrush(Qt::NoBrush));
                 QTextStream str(&f);
@@ -307,7 +324,7 @@ void DlgGeneralImp::loadSettings()
         fileNames = dir.entryInfoList(filter, QDir::Files, QDir::Name);
         for (QFileInfoList::iterator jt = fileNames.begin(); jt != fileNames.end(); ++jt) {
             if (cssFiles.find(jt->baseName()) == cssFiles.end()) {
-                cssFiles[jt->baseName()] = jt->absoluteFilePath();
+                cssFiles[jt->baseName()] = jt->fileName();
             }
         }
     }
diff --git a/src/Mod/Start/StartPage/StartPage.py b/src/Mod/Start/StartPage/StartPage.py
index 59832d82f4ab..1de6f5eba315 100644
--- a/src/Mod/Start/StartPage/StartPage.py
+++ b/src/Mod/Start/StartPage/StartPage.py
@@ -299,9 +299,32 @@ def handle():
     if FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Start").GetBool("UseStyleSheet",False):
         qssfile = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/MainWindow").GetString("StyleSheet","")
         if qssfile:
-            with open(qssfile, 'r') as f:
-                ALTCSS = encode(f.read())
-            HTML = HTML.replace("<!--QSS-->","<style type=\"text/css\">"+ALTCSS+"</style>")
+            # Search for stylesheet in user, system and resources locations
+            user = os.path.join(FreeCAD.getUserAppDataDir(), "Gui", "Stylesheets")
+            system = os.path.join(FreeCAD.getResourceDir(), "Gui", "Stylesheets")
+            resources = ":/stylesheets"
+
+            res = False
+            if QtCore.QFile.exists(os.path.join(user, qssfile)):
+                path = os.path.join(user, qssfile)
+            elif QtCore.QFile.exists(os.path.join(system, qssfile)):
+                path = os.path.join(system, qssfile)
+            elif QtCore.QFile.exists(os.path.join(resources, qssfile)):
+                res = True
+                path = os.path.join(resources, qssfile)
+            else:
+                path = None
+
+            if path:
+                if res:
+                    f = QtCore.QFile(path)
+                    if f.open(QtCore.QIODevice.ReadOnly | QtCore.QFile.Text):
+                        ALTCSS = encode(QtCore.QTextStream(f).readAll())
+                else:
+                    with open(path, 'r') as f:
+                        ALTCSS = encode(f.read())
+
+                HTML = HTML.replace("<!--QSS-->","<style type=\"text/css\">"+ALTCSS+"</style>")
 
     # turn tips off if needed