From de84b7708ed1b24bc33015373996790b6f3275c1 Mon Sep 17 00:00:00 2001
From: cg2121 <claytong1214@gmail.com>
Date: Fri, 2 Feb 2024 13:01:01 -0600
Subject: [PATCH] Use newest scene tree from main OBS

---
 src/scene-tree.cpp | 34 ++++++++++++++--------------------
 src/scene-tree.hpp |  2 ++
 2 files changed, 16 insertions(+), 20 deletions(-)

diff --git a/src/scene-tree.cpp b/src/scene-tree.cpp
index 6b4f34d..f5386e1 100644
--- a/src/scene-tree.cpp
+++ b/src/scene-tree.cpp
@@ -1,4 +1,3 @@
-#include "obs.hpp"
 #include "scene-tree.hpp"
 
 #include <QSizePolicy>
@@ -6,6 +5,7 @@
 #include <QDropEvent>
 #include <QPushButton>
 #include <QTimer>
+#include <cmath>
 
 SceneTree::SceneTree(QWidget *parent_) : QListWidget(parent_)
 {
@@ -79,7 +79,7 @@ void SceneTree::resizeEvent(QResizeEvent *event)
 		}
 
 		int wid = contentsRect().width() - scrollWid - 1;
-		int items = (int)ceil((float)wid / maxWidth);
+		int items = (int)std::ceil((float)wid / maxWidth);
 		int itemWidth = wid / items;
 
 		setGridSize(QSize(itemWidth, itemHeight));
@@ -89,7 +89,6 @@ void SceneTree::resizeEvent(QResizeEvent *event)
 		}
 	} else {
 		setGridSize(QSize());
-		setSpacing(1);
 		for (int i = 0; i < count(); i++) {
 			item(i)->setData(Qt::SizeHintRole, QVariant());
 		}
@@ -126,16 +125,12 @@ void SceneTree::dropEvent(QDropEvent *event)
 
 		float wid = contentsRect().width() - scrollWid - 1;
 
-#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
 		QPoint point = event->position().toPoint();
-#else
-		QPoint point = event->pos();
-#endif
 
-		int x = (float)point.x() / wid * ceil(wid / maxWidth);
+		int x = (float)point.x() / wid * std::ceil(wid / maxWidth);
 		int y = (point.y() + firstItemY) / itemHeight;
 
-		int r = x + y * ceil(wid / maxWidth);
+		int r = x + y * std::ceil(wid / maxWidth);
 
 		QListWidgetItem *item = takeItem(selectedIndexes()[0].row());
 		insertItem(r, item);
@@ -171,16 +166,12 @@ void SceneTree::RepositionGrid(QDragMoveEvent *event)
 	float wid = contentsRect().width() - scrollWid - 1;
 
 	if (event) {
-#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
 		QPoint point = event->position().toPoint();
-#else
-		QPoint point = event->pos();
-#endif
 
-		int x = (float)point.x() / wid * ceil(wid / maxWidth);
+		int x = (float)point.x() / wid * std::ceil(wid / maxWidth);
 		int y = (point.y() + firstItemY) / itemHeight;
 
-		int r = x + y * ceil(wid / maxWidth);
+		int r = x + y * std::ceil(wid / maxWidth);
 		int orig = selectedIndexes()[0].row();
 
 		for (int i = 0; i < count(); i++) {
@@ -195,8 +186,8 @@ void SceneTree::RepositionGrid(QDragMoveEvent *event)
 				  (i > orig && i > r ? 1 : 0) -
 				  (i > orig && i == r ? 2 : 0);
 
-			int xPos = (i + off) % (int)ceil(wid / maxWidth);
-			int yPos = (i + off) / (int)ceil(wid / maxWidth);
+			int xPos = (i + off) % (int)std::ceil(wid / maxWidth);
+			int yPos = (i + off) / (int)std::ceil(wid / maxWidth);
 			QSize g = gridSize();
 
 			QPoint position(xPos * g.width(), yPos * g.height());
@@ -211,8 +202,8 @@ void SceneTree::RepositionGrid(QDragMoveEvent *event)
 
 			QModelIndex index = indexFromItem(wItem);
 
-			int xPos = i % (int)ceil(wid / maxWidth);
-			int yPos = i / (int)ceil(wid / maxWidth);
+			int xPos = i % (int)std::ceil(wid / maxWidth);
+			int yPos = i / (int)std::ceil(wid / maxWidth);
 			QSize g = gridSize();
 
 			QPoint position(xPos * g.width(), yPos * g.height());
@@ -247,10 +238,13 @@ void SceneTree::rowsInserted(const QModelIndex &parent, int start, int end)
 	QListWidget::rowsInserted(parent, start, end);
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 4, 3)
 // Workaround for QTBUG-105870. Remove once that is solved upstream.
 void SceneTree::selectionChanged(const QItemSelection &selected,
 				 const QItemSelection &deselected)
 {
-	if (selected.count() == 0 && deselected.count() > 0)
+	if (selected.count() == 0 && deselected.count() > 0 &&
+	    !property("clearing").toBool())
 		setCurrentRow(deselected.indexes().front().row());
 }
+#endif
diff --git a/src/scene-tree.hpp b/src/scene-tree.hpp
index b80918f..0950f12 100644
--- a/src/scene-tree.hpp
+++ b/src/scene-tree.hpp
@@ -38,9 +38,11 @@ class SceneTree : public QListWidget {
 	virtual void dragLeaveEvent(QDragLeaveEvent *event) override;
 	virtual void rowsInserted(const QModelIndex &parent, int start,
 				  int end) override;
+#if QT_VERSION < QT_VERSION_CHECK(6, 4, 3)
 	virtual void
 	selectionChanged(const QItemSelection &selected,
 			 const QItemSelection &deselected) override;
+#endif
 
 signals:
 	void scenesReordered();