Fixes for exit confirmation when saved

src/anm2.h

@@ -137,23 +137,31 @@ struct Anm2Spritesheet
     std::string path{};
     Texture texture;
     std::vector<u8> pixels; 
+
+    auto operator<=>(const Anm2Spritesheet&) const = default;
 };
 
 struct Anm2Layer
 {
     std::string name = "New Layer";
-	s32 spritesheetID{};
+	s32 spritesheetID{}
+
+    auto operator<=>(const Anm2Layer&) const = default;
 };
 
 struct Anm2Null
 {
     std::string name = "New Null";   
     bool isShowRect = false;
+
+    auto operator<=>(const Anm2Null&) const = default;
 };
 
 struct Anm2Event
 {
     std::string name = "New Event";
+
+    auto operator<=>(const Anm2Event&) const = default;
 };
 
 struct Anm2Frame
@@ -171,27 +179,16 @@ struct Anm2Frame
 	vec2 scale = {100, 100};
 	vec3 offsetRGB = COLOR_OFFSET_NONE;
 	vec4 tintRGBA = COLOR_OPAQUE;
-};
 
-struct Anm2FrameChange
-{
-    std::optional<bool> isVisible;
-    std::optional<bool> isInterpolated;
-    std::optional<f32> rotation;
-    std::optional<s32> delay;
-    std::optional<vec2> crop;
-    std::optional<vec2> pivot;
-    std::optional<vec2> position;
-    std::optional<vec2> size;
-    std::optional<vec2> scale;
-    std::optional<vec3> offsetRGB;
-    std::optional<vec4> tintRGBA;
+    auto operator<=>(const Anm2Frame&) const = default;
 };
 
 struct Anm2Item
 {
     bool isVisible = true;
 	std::vector<Anm2Frame> frames;
+
+    auto operator<=>(const Anm2Item&) const = default;
 };
 
 struct Anm2Animation
@@ -204,6 +201,8 @@ struct Anm2Animation
     std::vector<s32> layerOrder;
     std::map<s32, Anm2Item> nullAnimations;
     Anm2Item triggers;
+    
+    auto operator<=>(const Anm2Animation&) const = default;
 };
 
 struct Anm2 
@@ -219,6 +218,8 @@ struct Anm2
     s32 defaultAnimationID = ID_NONE;
     s32 fps = ANM2_FPS_DEFAULT;
 	s32 version{};
+
+    auto operator<=>(const Anm2&) const = default;
 };
 
 struct Anm2Reference
@@ -231,6 +232,21 @@ struct Anm2Reference
     auto operator<=>(const Anm2Reference&) const = default; 
 };
 
+struct Anm2FrameChange
+{
+    std::optional<bool> isVisible;
+    std::optional<bool> isInterpolated;
+    std::optional<f32> rotation;
+    std::optional<s32> delay;
+    std::optional<vec2> crop;
+    std::optional<vec2> pivot;
+    std::optional<vec2> position;
+    std::optional<vec2> size;
+    std::optional<vec2> scale;
+    std::optional<vec3> offsetRGB;
+    std::optional<vec4> tintRGBA;
+};
+
 enum Anm2MergeType
 {
     ANM2_MERGE_APPEND_FRAMES,

src/imgui.cpp

@@ -3012,6 +3012,8 @@ void imgui_init
 	self->window = window;
 	self->glContext = glContext;
 
+	self->saveAnm2 = *anm2;
+	
 	ImGui::CreateContext();
 	ImGui::StyleColorsDark();
 
@@ -3032,6 +3034,7 @@ void imgui_init
 		if (!SETTINGS_HOTKEY_MEMBERS[i]) continue;
 		imgui_hotkey_chord_registry()[i] = imgui_chord_from_string_get(*&(self->settings->*SETTINGS_HOTKEY_MEMBERS[i]));
 	}
+
 }
 
 void imgui_update(Imgui* self)

src/imgui.h

@@ -209,6 +209,7 @@ struct Imgui
     ImguiPopupType pendingPopupType = IMGUI_POPUP_NONE;
     ImVec2 pendingPopupPosition{};
     std::vector<ImguiLogItem> log;
+    Anm2 saveAnm2;
     SDL_SystemCursor cursor;
     SDL_SystemCursor pendingCursor;
     bool isCursorSet = false;
@@ -217,7 +218,6 @@ struct Imgui
     bool isTryQuit = false;
 };
 
-
 static inline void imgui_snapshot(Imgui* self, const std::string& action = SNAPSHOT_ACTION)
 {
     self->snapshots->action = action;
@@ -252,6 +252,8 @@ static inline void imgui_file_save(Imgui* self)
 		anm2_serialize(self->anm2, self->anm2->path);
         imgui_log_push(self, std::format(IMGUI_LOG_FILE_SAVE_FORMAT, self->anm2->path));
     }
+
+    self->saveAnm2 = *self->anm2;
 }
 
 static inline void imgui_file_new(Imgui* self)
@@ -269,7 +271,7 @@ static inline void imgui_file_save_as(Imgui* self)
 
 static inline void imgui_quit(Imgui* self)
 {
-    if (!self->snapshots->undoStack.is_empty())
+    if (self->saveAnm2 != *self->anm2)
         self->isTryQuit = true;
     else
         self->isQuit = true;

src/texture.h

@@ -13,6 +13,8 @@ struct Texture
     GLuint id = GL_ID_NONE;
     ivec2 size{};
     bool isInvalid = true;
+
+    auto operator<=>(const Texture&) const = default;
 };
 
 bool texture_from_encoded_data_init(Texture* self, ivec2 size, const u8* data, u32 length);