From eb7e513ab234e07986dd1580619981271d3e87ef Mon Sep 17 00:00:00 2001
From: Alarcon Ace Belen <alarconacebelen@gmail.com>
Date: Thu, 22 Dec 2022 22:18:46 +0800
Subject: [PATCH] Set first file as default selected index

---
 code/Explorers.py | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/code/Explorers.py b/code/Explorers.py
index 1e8283d..ad5d290 100644
--- a/code/Explorers.py
+++ b/code/Explorers.py
@@ -46,15 +46,30 @@ def __init__(self, parent=None, tracker=None):
 
     def currentChanged(self, current, previous):
         if not current.isValid():
-            current = self.model.index(0, 0, self.rootIndex())
+            current = self.model.index(self.getTopIndex(), 0, self.rootIndex())
         filename = self.model.fileInfo(current).absoluteFilePath()
         nextIndex = self.indexBelow(current)
         filenext = self.model.fileInfo(nextIndex).absoluteFilePath()
         self.parent.viewImageFromExplorer(filename, filenext)
         QTreeView.currentChanged(self, current, previous)
 
+    def getTopIndex(self):
+        r = self.model.rowCount(self.rootIndex()) // 2
+        while True:
+            item = self.model.index(r, 0, self.rootIndex())
+            if not item.isValid():
+                break
+            if self.model.fileInfo(item).isFile():
+                r //= 2
+            elif not self.model.fileInfo(item).isFile():
+                r += 1
+                item = self.model.index(r, 0, self.rootIndex())
+                if self.model.fileInfo(item).isFile():
+                    break
+        return r
+
     def setTopIndex(self):
-        topIndex = self.model.index(0, 0, self.rootIndex())
+        topIndex = self.model.index(self.getTopIndex(), 0, self.rootIndex())
         if topIndex.isValid():
             self.setCurrentIndex(topIndex)
             if self.layoutCheck: