From 9023d106c61db0be0de6460a397bbad42bbc3d96 Mon Sep 17 00:00:00 2001
From: hachem <im@hachem.wtf>
Date: Fri, 4 Sep 2026 03:21:45 +0200
Subject: feat: macro expantion

---
 src/ui/source_view.h | 28 ++++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

(limited to 'src/ui/source_view.h')

diff --git a/src/ui/source_view.h b/src/ui/source_view.h
index 2e1a20f..c8a9a21 100644
--- a/src/ui/source_view.h
+++ b/src/ui/source_view.h
@@ -1,12 +1,16 @@
 #pragma once
 
 #include "core/result.h"
+#include "ui/macro_expander.h"
 
 #include <cstdint>
 #include <filesystem>
+#include <optional>
 #include <string>
 #include <vector>
 
+struct ImDrawList;
+
 namespace Hsdbg
 {
     class Debugger;
@@ -22,6 +26,7 @@ namespace Hsdbg
         Number,
         Comment,
         Preprocessor,
+        Macro,
     };
 
     struct SourceSpan
@@ -52,21 +57,40 @@ namespace Hsdbg
         auto line_count() const -> size_t { return m_lines.size(); }
         auto is_open() const -> bool { return !m_lines.empty(); }
 
+        // the #defines visible in the open file, so a panel can expand the same
+        // macros the source view is highlighting
+        auto macros() const -> const MacroTable& { return m_macros; }
+
+        // when the user clicks a highlighted macro, the invocation as written
+        // (name plus any argument list) is stashed here for the ui to pick up and
+        // hand to the macros panel; cleared once taken
+        auto take_macro_request() -> std::optional<std::string>;
+
     private:
         auto draw_open_bar() -> void;
         auto draw_lines(Debugger& debugger) -> void;
 
+        // renders a highlighted macro name: hovering previews its expansion,
+        // clicking records the invocation for the macros panel to open
+        auto draw_macro_span(ImDrawList* draw_list, const std::string& line,
+                             const SourceSpan& span) -> void;
+
         std::filesystem::path m_path;
         std::vector<std::string> m_lines;
         std::vector<std::vector<SourceSpan>> m_spans;
+        MacroTable m_macros;
+        std::optional<std::string> m_macro_request;
         bool m_highlight = false;
         bool m_highlighting_enabled = true;
         bool m_line_numbers = true;
         bool m_highlight_current_line = true;
 
-        // indexed by SyntaxKind; the defaults match the built-in dark palette
-        unsigned int m_syntax_colors[7] = {
+        // indexed by SyntaxKind; the defaults match the built-in dark palette.
+        // the macro colour (last) is warm on purpose so expandable names read as
+        // clickable against the rest of the syntax
+        unsigned int m_syntax_colors[8] = {
             0, 0xFFD69C56, 0xFFB0C94E, 0xFF7891CE, 0xFFA8CEB5, 0xFF55996A, 0xFFC086C5,
+            0xFF4FA3E0,
         };
         unsigned int m_current_line_color = 0xFF2E483A;
         std::string m_path_input;
-- 
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