From 90499462ea70fb0c747d1e5b144a19ff9a543b9d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mart=C3=ADn=20Lucas=20Golini?= <spartanj@gmail.com>
Date: Sun, 6 Sep 2026 21:18:06 -0300
Subject: [PATCH] Fix Reset zoom in new eeiv port.

---
 src/tools/eeiv/eeiv.cpp | 19 ++++++++++++++++++-
 src/tools/eeiv/eeiv.hpp |  1 +
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/tools/eeiv/eeiv.cpp b/src/tools/eeiv/eeiv.cpp
index 4c59f86f8..dd959796d 100644
--- a/src/tools/eeiv/eeiv.cpp
+++ b/src/tools/eeiv/eeiv.cpp
@@ -398,7 +398,7 @@ void App::registerKeyBindings() {
 		} else if ( key == KEY_KP_MULTIPLY || key == KEY_Z ) {
 			fitImage();
 		} else if ( key == KEY_KP_DIVIDE ) {
-			setImgScale( mConfig.DefaultImageZoom );
+			resetImageZoom();
 		} else if ( key == KEY_N && mImageViewer->getImage()->getDrawable() ) {
 			const Sizef size( mImageViewer->getImage()->getDrawable()->getPixelsSize() );
 			getWindow()->setSize( size.getWidth(), size.getHeight() );
@@ -470,6 +470,23 @@ void App::fitImage() {
 		mImageViewer->resetImageView();
 }
 
+void App::resetImageZoom() {
+	if ( !mImageViewer || !mImageViewer->getImage() || !mImageViewer->getImage()->getDrawable() )
+		return;
+
+	UIImage* image = mImageViewer->getImage();
+	const Sizef displayedSize( image->getPixelsSize() );
+	const Sizef nativeSize( image->getDrawable()->getPixelsSize() );
+	if ( displayedSize.getWidth() == 0.f || displayedSize.getHeight() == 0.f )
+		return;
+
+	const Float pixelDensity = PixelDensity::getPixelDensity();
+	image->setScale( { mConfig.DefaultImageZoom * nativeSize.getWidth() /
+						   ( displayedSize.getWidth() * pixelDensity ),
+					   mConfig.DefaultImageZoom * nativeSize.getHeight() /
+						   ( displayedSize.getHeight() * pixelDensity ) } );
+}
+
 Sprite* App::getImageSprite() const {
 	if ( !mImageViewer || !mImageViewer->getImage() || !mImageViewer->getImage()->getDrawable() )
 		return nullptr;
diff --git a/src/tools/eeiv/eeiv.hpp b/src/tools/eeiv/eeiv.hpp
index c53e48dcb..5dedabc44 100644
--- a/src/tools/eeiv/eeiv.hpp
+++ b/src/tools/eeiv/eeiv.hpp
@@ -69,6 +69,7 @@ class App {
 	void updateSlideShow();
 	void toggleHelp();
 	void fitImage();
+	void resetImageZoom();
 	Sprite* getImageSprite() const;
 	void processDroppedFiles();