ProfilesSharingUtils : Implemented detection of the application DataDir to avoid manual set for this value.

Use just native functions (without wxWidgets)
Note: Most of code is extracted from wxWidgest (wxStandardPaths and wxFileName classes implementation) to avoid use of wxString

src/libslic3r/libslic3r.h

@@ -15,6 +15,11 @@
 #define _libslic3r_h_
 
 #include "libslic3r_version.h"
+
+//#define SLIC3R_APP_FULL_NAME SLIC3R_APP_NAME
+#define SLIC3R_APP_FULL_NAME SLIC3R_APP_NAME "-alpha"
+//#define SLIC3R_APP_FULL_NAME SLIC3R_APP_NAME "-beta"
+
 #define GCODEVIEWER_APP_NAME "PrusaSlicer G-code Viewer"
 #define GCODEVIEWER_APP_KEY  "PrusaSlicerGcodeViewer"
 

src/slic3r/GUI/GUI_App.cpp

@@ -923,18 +923,7 @@ static boost::optional<Semver> parse_semver_from_ini(std::string path)
 void GUI_App::init_app_config()
 {
 	// Profiles for the alpha are stored into the PrusaSlicer-alpha directory to not mix with the current release.
-
-//  SetAppName(SLIC3R_APP_KEY);
-	SetAppName(SLIC3R_APP_KEY "-alpha");
-//  SetAppName(SLIC3R_APP_KEY "-beta");
-
-
-//	SetAppDisplayName(SLIC3R_APP_NAME);
-
-	// Set the Slic3r data directory at the Slic3r XS module.
-	// Unix: ~/ .Slic3rP
-	// Windows : "C:\Users\username\AppData\Roaming\Slic3r" or "C:\Documents and Settings\username\Application Data\Slic3r"
-	// Mac : "~/Library/Application Support/Slic3r"
+	SetAppName(SLIC3R_APP_FULL_NAME);
 
     if (data_dir().empty()) {
         #ifndef __linux__

src/slic3r/Utils/MacUtils.mm

@@ -1,4 +1,5 @@
 #import "AppUpdater.hpp"
+#import "ProfilesSharingUtils.hpp"
 
 #import <Foundation/Foundation.h>
 
@@ -15,4 +16,15 @@ std::string get_downloads_path_mac()
 	//[NSURL fileURLWithPath:[NSHomeDirectory() stringByAppendingPathComponent:@"Downloads"]];
 	//return std::string();
 }
+
+// ProfilesSharingUtils.hpp
+std::string GetDataDir()
+{
+	NSURL* url = [[NSFileManager defaultManager] URLForDirectory:NSApplicationSupportDirectory
+												 inDomain:NSUserDomainMask
+												 appropriateForURL:nil create:NO error:nil];
+
+	return std::string([(CFStringRef)url.path UTF8String]);
+}
+
 }

src/slic3r/Utils/ProfilesSharingUtils.cpp

@@ -3,15 +3,109 @@
 ///|/ PrusaSlicer is released under the terms of the AGPLv3 or higher
 ///|/
 #include "ProfilesSharingUtils.hpp"
-#include "libslic3r/utils.hpp"
-
+#include "libslic3r/Utils.hpp"
 #include "slic3r/GUI/ConfigWizard_private.hpp"
 #include "slic3r/GUI/format.hpp"
 
 #include <boost/property_tree/json_parser.hpp>
 
+#if defined(_WIN32)
+
+#include <shlobj.h>
+
+static std::string GetDataDir()
+{
+    HRESULT hr = E_FAIL;
+
+    std::wstring buffer;
+    buffer.resize(MAX_PATH);
+
+    hr = ::SHGetFolderPath
+    (
+        NULL,               // parent window, not used
+        CSIDL_APPDATA,
+        NULL,               // access token (current user)
+        SHGFP_TYPE_CURRENT, // current path, not just default value
+        (LPWSTR)buffer.data()
+    );
+
+    // somewhat incredibly, the error code in the Unicode version is
+    // different from the one in ASCII version for this function
+#if wxUSE_UNICODE
+    if (hr == E_FAIL)
+#else
+    if (hr == S_FALSE)
+#endif
+    {
+        // directory doesn't exist, maybe we can get its default value?
+        hr = ::SHGetFolderPath
+        (
+            NULL,
+            CSIDL_APPDATA,
+            NULL,
+            SHGFP_TYPE_DEFAULT,
+            (LPWSTR)buffer.data()
+        );
+    }
+
+    for (int i=0; i< MAX_PATH; i++)
+        if (buffer.data()[i] == '\0') {
+            buffer.resize(i);
+            break;
+        }
+
+    return  boost::nowide::narrow(buffer);
+}
+
+#elif defined(__linux__)
+
+#include <stdlib.h>
+#include <pwd.h>
+
+static std::string GetDataDir()
+{
+    std::string dir;
+
+    char* ptr;
+    if ((ptr = getenv("XDG_CONFIG_HOME")))
+        dir = std::string(ptr);
+    else {
+        if ((ptr = getenv("HOME")))
+            dir = std::string(ptr);
+        else {
+            struct passwd* who = (struct passwd*)NULL;
+            if ((ptr = getenv("USER")) || (ptr = getenv("LOGNAME")))
+                who = getpwnam(ptr);
+            // make sure the user exists!
+            if (!who)
+                who = getpwuid(getuid());
+
+            dir = std::string(who ? who->pw_dir : 0);
+        }
+        dir += "/.config";
+    }
+
+    if (dir.empty())
+        printf("GetDataDir() > unsupported file layout \n");
+
+    return dir;
+}
+
+#endif
+
 namespace Slic3r {
 
+static bool is_datadir()
+{
+    if (!data_dir().empty())
+        return true;
+
+    const std::string config_dir = GetDataDir();
+    const std::string data_dir = (boost::filesystem::path(config_dir) / SLIC3R_APP_FULL_NAME).make_preferred().string();
+
+    set_data_dir(data_dir);
+    return true;
+}
 namespace pt = boost::property_tree;
 
 using namespace GUI;
@@ -127,6 +221,9 @@ static bool load_preset_bandle_from_datadir(PresetBundle& preset_bundle)
 
 std::string get_json_printer_models(PrinterTechnology printer_technology)
 {
+    if (!is_datadir())
+        return "";
+
     // Build a property tree with all the information.
     pt::ptree root;
 
@@ -208,6 +305,9 @@ static std::string get_printer_profiles(const VendorProfile* vendor_profile,
 
 std::string get_json_printer_profiles(const std::string& printer_model_name, const std::string& printer_variant)
 {
+    if (!is_datadir())
+        return "";
+
     PrinterAttr printer_attr({printer_model_name, printer_variant});
 
     if (data_dir().empty()) {
@@ -308,6 +408,9 @@ static std::string get_installed_print_and_filament_profiles(const PresetBundle*
 
 std::string get_json_print_filament_profiles(const std::string& printer_profile)
 {
+    if (!is_datadir())
+        return "";
+
     if (data_dir().empty()) {
         printf("Loading of all known vendors .");
         BundleMap bundles = BundleMap::load();

src/slic3r/Utils/ProfilesSharingUtils.hpp

@@ -5,12 +5,19 @@
 #ifndef slic3r_ProfilesSharingUtils_hpp_
 #define slic3r_ProfilesSharingUtils_hpp_
 
+#include "libslic3r/Config.hpp"
+
 namespace Slic3r {
 
 std::string get_json_printer_models(PrinterTechnology printer_technology);
 std::string get_json_printer_profiles(const std::string& printer_model, const std::string& printer_variant);
 std::string get_json_print_filament_profiles(const std::string& printer_profile);
 
+#if __APPLE__
+//implemented at MacUtils.mm
+std::string GetDataDir();
+#endif //__APPLE__
+
 } // namespace Slic3r
 
 #endif // slic3r_ProfilesSharingUtils_hpp_