From 3ff7a848b141bd7654d662285c4e676ca2d61867 Mon Sep 17 00:00:00 2001
From: WarmUpTill <WarmUpTill@web.de>
Date: Sat, 10 Oct 2020 00:17:19 +0200
Subject: [PATCH] add option to add 'select ...' entry to populate functions

---
 src/advanced-scene-switcher.cpp         | 38 +++++++++++++++++++++----
 src/headers/advanced-scene-switcher.hpp | 15 ++++++----
 2 files changed, 43 insertions(+), 10 deletions(-)

diff --git a/src/advanced-scene-switcher.cpp b/src/advanced-scene-switcher.cpp
index 8fc3da57..03759fef 100644
--- a/src/advanced-scene-switcher.cpp
+++ b/src/advanced-scene-switcher.cpp
@@ -1,6 +1,7 @@
 #include <QMainWindow>
 #include <QDir>
 #include <QAction>
+#include <QtGui\qstandarditemmodel.h>
 
 #include <condition_variable>
 #include <chrono>
@@ -304,8 +305,23 @@ void SwitcherData::Stop()
 	}
 }
 
-void SceneSwitcher::populateSceneSelection(QComboBox *sel, bool addPrevious)
+void addSelectionEntry(QComboBox *sel, const char *description)
 {
+	sel->addItem(description);
+	QStandardItemModel *model =
+		qobject_cast<QStandardItemModel *>(sel->model());
+	QModelIndex firstIndex =
+		model->index(0, sel->modelColumn(), sel->rootModelIndex());
+	QStandardItem *firstItem = model->itemFromIndex(firstIndex);
+	firstItem->setSelectable(false);
+}
+
+void SceneSwitcher::populateSceneSelection(QComboBox *sel, bool addPrevious,
+					   bool addSelect)
+{
+	if (addSelect)
+		addSelectionEntry(sel, "--select scene--");
+
 	BPtr<char *> scenes = obs_frontend_get_scene_names();
 	char **temp = scenes;
 	while (*temp) {
@@ -318,8 +334,11 @@ void SceneSwitcher::populateSceneSelection(QComboBox *sel, bool addPrevious)
 		sel->addItem(previous_scene_name);
 }
 
-void SceneSwitcher::populateTransitionSelection(QComboBox *sel)
+void SceneSwitcher::populateTransitionSelection(QComboBox *sel, bool addSelect)
 {
+	if (addSelect)
+		addSelectionEntry(sel, "--select transition--");
+
 	obs_frontend_source_list *transitions = new obs_frontend_source_list();
 	obs_frontend_get_transitions(transitions);
 
@@ -332,8 +351,11 @@ void SceneSwitcher::populateTransitionSelection(QComboBox *sel)
 	obs_frontend_source_list_free(transitions);
 }
 
-void SceneSwitcher::populateWindowSelection(QComboBox *sel)
+void SceneSwitcher::populateWindowSelection(QComboBox *sel, bool addSelect)
 {
+	if (addSelect)
+		addSelectionEntry(sel, "--select window--");
+
 	std::vector<std::string> windows;
 	GetWindowList(windows);
 	sort(windows.begin(), windows.end());
@@ -343,8 +365,11 @@ void SceneSwitcher::populateWindowSelection(QComboBox *sel)
 	}
 }
 
-void SceneSwitcher::populateAudioSelection(QComboBox *sel)
+void SceneSwitcher::populateAudioSelection(QComboBox *sel, bool addSelect)
 {
+	if (addSelect)
+		addSelectionEntry(sel, "--select audio source--");
+
 	auto sourceEnum = [](void *data, obs_source_t *source) -> bool /* -- */
 	{
 		QComboBox *combo = reinterpret_cast<QComboBox *>(data);
@@ -360,8 +385,11 @@ void SceneSwitcher::populateAudioSelection(QComboBox *sel)
 	obs_enum_sources(sourceEnum, sel);
 }
 
-void SceneSwitcher::populateMediaSelection(QComboBox *sel)
+void SceneSwitcher::populateMediaSelection(QComboBox *sel, bool addSelect)
 {
+	if (addSelect)
+		addSelectionEntry(sel, "--select media source--");
+
 	auto sourceEnum = [](void *data, obs_source_t *source) -> bool /* -- */
 	{
 		QComboBox *combo = reinterpret_cast<QComboBox *>(data);
diff --git a/src/headers/advanced-scene-switcher.hpp b/src/headers/advanced-scene-switcher.hpp
index 509ca26d..50b8d3c6 100644
--- a/src/headers/advanced-scene-switcher.hpp
+++ b/src/headers/advanced-scene-switcher.hpp
@@ -71,11 +71,16 @@ public:
 	void setTabOrder();
 
 	static void populateSceneSelection(QComboBox *sel,
-					   bool addPrevious = false);
-	static void populateTransitionSelection(QComboBox *sel);
-	static void populateWindowSelection(QComboBox *sel);
-	static void populateAudioSelection(QComboBox *sel);
-	static void populateMediaSelection(QComboBox *sel);
+					   bool addPrevious = false,
+					   bool addSelect = true);
+	static void populateTransitionSelection(QComboBox *sel,
+						bool addSelect = true);
+	static void populateWindowSelection(QComboBox *sel,
+					    bool addSelect = true);
+	static void populateAudioSelection(QComboBox *sel,
+					   bool addSelect = true);
+	static void populateMediaSelection(QComboBox *sel,
+					   bool addSelect = true);
 
 public slots:
 	void on_switches_currentRowChanged(int idx);