From 595f144f74a8faf3d32809a10ca7e2740ff4b29c Mon Sep 17 00:00:00 2001
From: alemuntoni <muntoni.alessandro@gmail.com>
Date: Tue, 5 May 2020 12:01:26 +0200
Subject: [PATCH] managing tmp folder and update vcglib

---
 .../filter_screened_poisson.cpp               | 24 ++++++++++++-------
 vcglib                                        |  2 +-
 2 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/src/meshlabplugins/filter_screened_poisson/filter_screened_poisson.cpp b/src/meshlabplugins/filter_screened_poisson/filter_screened_poisson.cpp
index 17f9f4eb2..4c6904451 100644
--- a/src/meshlabplugins/filter_screened_poisson/filter_screened_poisson.cpp
+++ b/src/meshlabplugins/filter_screened_poisson/filter_screened_poisson.cpp
@@ -100,15 +100,22 @@ bool FilterScreenedPoissonPlugin::applyFilter(QAction* filter, MeshDocument& md,
 	QDir currDir = QDir::current();
 
 	if (ID(filter) == FP_SCREENED_POISSON) {
-		//check if folder is writable
-		QTemporaryFile file("./_tmp_XXXXXX.tmp");
-		if (!file.open()) {
+		//Using tmp dir
+		QTemporaryDir tmpdir;
+		QTemporaryFile file(tmpdir.path());
+		if (!file.open()) { //if a file cannot be created in the tmp folder
+			Log("Warning - tmp folder is not writable.");
+
+			QTemporaryFile file2("./_tmp_XXXXXX.tmp"); //try to create a file in the meshlab folder
+			if (!file2.open()){ //if a file cannot be created in the tmp and in the meshlab folder, we cannot run the filter
+				Log("Warning - current folder is not writable. Screened Poisson Merging needs to save intermediate files in the tmp working folder. Project and meshes must be in a write-enabled folder. Please save your data in a suitable folder before applying.");
+				errorMessage = "current and tmp folder are not writable.<br> Screened Poisson Merging needs to save intermediate files in the current working folder.<br> Project and meshes must be in a write-enabled folder.<br> Please save your data in a suitable folder before applying.";
+				return false;
+			}
+		}
+		else { //if the tmp folder is writable, we will use it
 			currDirChanged=true;
-			QTemporaryDir tmpdir;
 			QDir::setCurrent(tmpdir.path());
-			Log("Warning - current folder is not writable. Screened Poisson Merging needs to save intermediate files in the current working folder. Project and meshes must be in a write-enabled folder. Please save your data in a suitable folder before applying.");
-			//errorMessage = "current folder is not writable.<br> Screened Poisson Merging needs to save intermediate files in the current working folder.<br> Project and meshes must be in a write-enabled folder.<br> Please save your data in a suitable folder before applying.";
-			//return false;
 		}
 
 		PoissonParam<Scalarm> pp;
@@ -174,7 +181,8 @@ bool FilterScreenedPoissonPlugin::applyFilter(QAction* filter, MeshDocument& md,
 		pm->UpdateBoxAndNormals();
 		md.setVisible(pm->id(),true);
 		md.setCurrentMesh(pm->id());
-		if(currDirChanged) QDir::setCurrent(currDir.path());
+		if(currDirChanged)
+			QDir::setCurrent(currDir.path());
 		return true;
 	}
 	return false;
diff --git a/vcglib b/vcglib
index f7871eed2..d657112c1 160000
--- a/vcglib
+++ b/vcglib
@@ -1 +1 @@
-Subproject commit f7871eed2d54bee704b9f66dc538c921602323cb
+Subproject commit d657112c134cf99932c9d0dfad98a213575c12dd