From 6ca8e6b3eaf172f5065ee5317fb19928b26bc6ce Mon Sep 17 00:00:00 2001
From: WarmUpTill <WarmUpTill@web.de>
Date: Sat, 4 Feb 2023 22:14:27 +0100
Subject: [PATCH] Fix preview not showing matches

This can happen if a new video condition was created and the condition
type was cahnged to one which supports displaying matches without
changing any parameters.
---
 .../opencv/macro-condition-video.cpp          | 24 +++++++++++--------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/src/macro-external/opencv/macro-condition-video.cpp b/src/macro-external/opencv/macro-condition-video.cpp
index 97576a84..95e91a31 100644
--- a/src/macro-external/opencv/macro-condition-video.cpp
+++ b/src/macro-external/opencv/macro-condition-video.cpp
@@ -586,6 +586,8 @@ void MacroConditionVideoEdit::ConditionChanged(int cond)
 		_entryData->_objMatchParameters.cascade =
 			initObjectCascade(path);
 	}
+
+	SetupPreviewDialogParams();
 }
 
 void MacroConditionVideoEdit::ImagePathChanged(const QString &text)
@@ -982,6 +984,18 @@ void MacroConditionVideoEdit::SetWidgetVisibility()
 	adjustSize();
 }
 
+void MacroConditionVideoEdit::SetupPreviewDialogParams()
+{
+	_previewDialog.PatternMatchParamtersChanged(
+		_entryData->_patternMatchParameters);
+	_previewDialog.ObjDetectParamtersChanged(
+		_entryData->_objMatchParameters);
+	_previewDialog.VideoSelectionChanged(_entryData->_video);
+	_previewDialog.AreaParamtersChanged(_entryData->_areaParameters);
+	_previewDialog.ConditionChanged(
+		static_cast<int>(_entryData->_condition));
+}
+
 void MacroConditionVideoEdit::UpdateEntryData()
 {
 	if (!_entryData) {
@@ -1015,14 +1029,4 @@ void MacroConditionVideoEdit::UpdateEntryData()
 	_checkArea->SetArea(_entryData->_areaParameters.area);
 	UpdatePreviewTooltip();
 	SetWidgetVisibility();
-
-	// Prepare previewDialog
-	_previewDialog.PatternMatchParamtersChanged(
-		_entryData->_patternMatchParameters);
-	_previewDialog.ObjDetectParamtersChanged(
-		_entryData->_objMatchParameters);
-	_previewDialog.VideoSelectionChanged(_entryData->_video);
-	_previewDialog.AreaParamtersChanged(_entryData->_areaParameters);
-	_previewDialog.ConditionChanged(
-		static_cast<int>(_entryData->_condition));
 }