From 79528a44ea1fdc9aa3803dd9ef0cb7782a81a968 Mon Sep 17 00:00:00 2001
From: MihailRis <mexaruc@gmail.com>
Date: Sat, 26 Apr 2025 22:12:34 +0300
Subject: [PATCH] add 'region' image property

---
 src/graphics/ui/elements/Image.cpp      | 6 +++++-
 src/graphics/ui/elements/Image.hpp      | 3 +++
 src/graphics/ui/gui_xml.cpp             | 5 +++++
 src/logic/scripting/lua/libs/libgui.cpp | 7 +++++++
 4 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/src/graphics/ui/elements/Image.cpp b/src/graphics/ui/elements/Image.cpp
index 4a1fabd3..ee3ec886 100644
--- a/src/graphics/ui/elements/Image.cpp
+++ b/src/graphics/ui/elements/Image.cpp
@@ -55,7 +55,7 @@ void Image::draw(const DrawContext& pctx, const Assets& assets) {
         0,
         0,
         0,
-        UVRegion(),
+        region,
         false,
         true,
         calcColor()
@@ -76,3 +76,7 @@ const std::string& Image::getTexture() const {
 void Image::setTexture(const std::string& name) {
     texture = name;
 }
+
+void Image::setRegion(const UVRegion& region) {
+    this->region = region;
+}
diff --git a/src/graphics/ui/elements/Image.hpp b/src/graphics/ui/elements/Image.hpp
index cc5ff17c..579ddd75 100644
--- a/src/graphics/ui/elements/Image.hpp
+++ b/src/graphics/ui/elements/Image.hpp
@@ -1,11 +1,13 @@
 #pragma once
 
 #include "UINode.hpp"
+#include "maths/UVRegion.hpp"
 
 namespace gui {
     class Image : public UINode {
     protected:
         std::string texture;
+        UVRegion region {};
         bool autoresize = false;
     public:
         Image(GUI& gui, std::string texture, glm::vec2 size=glm::vec2(32,32));
@@ -16,5 +18,6 @@ namespace gui {
         virtual bool isAutoResize() const;
         virtual const std::string& getTexture() const;
         virtual void setTexture(const std::string& name);
+        void setRegion(const UVRegion& region);
     };
 }
diff --git a/src/graphics/ui/gui_xml.cpp b/src/graphics/ui/gui_xml.cpp
index 06262fec..b01e008e 100644
--- a/src/graphics/ui/gui_xml.cpp
+++ b/src/graphics/ui/gui_xml.cpp
@@ -544,6 +544,11 @@ static std::shared_ptr<UINode> read_image(
     std::string src = element.attr("src", "").getText();
     auto image = std::make_shared<Image>(reader.getGUI(), src);
     read_uinode(reader, element, *image);
+
+    if (element.has("region")) {
+        auto vec = element.attr("region").asVec4();
+        image->setRegion(UVRegion(vec.x, vec.y, vec.z, vec.w));
+    }
     return image;
 }
 
diff --git a/src/logic/scripting/lua/libs/libgui.cpp b/src/logic/scripting/lua/libs/libgui.cpp
index 466ea3aa..56bada71 100644
--- a/src/logic/scripting/lua/libs/libgui.cpp
+++ b/src/logic/scripting/lua/libs/libgui.cpp
@@ -659,6 +659,12 @@ static void p_set_src(UINode* node, lua::State* L, int idx) {
         iframe->setSrc(lua::require_string(L, idx));
     }
 }
+static void p_set_region(UINode* node, lua::State* L, int idx) {
+    if (auto image = dynamic_cast<Image*>(node)) {
+        auto vec = lua::tovec4(L, idx);
+        image->setRegion(UVRegion(vec.x, vec.y, vec.z, vec.w));
+    }
+}
 static void p_set_value(UINode* node, lua::State* L, int idx) {
     if (auto bar = dynamic_cast<TrackBar*>(node)) {
         bar->setValue(lua::tonumber(L, idx));
@@ -785,6 +791,7 @@ static int l_gui_setattr(lua::State* L) {
             {"inventory", p_set_inventory},
             {"cursor", p_set_cursor},
             {"focused", p_set_focused},
+            {"region", p_set_region},
         };
     auto func = setters.find(attr);
     if (func != setters.end()) {