feat: improve layout and themes

1 files changed, 28 insertions, 1 deletions

diff --git a/src/ui/source_view.h b/src/ui/source_view.h
index 7dd949d..1e68265 100644
--- a/src/ui/source_view.h
+++ b/src/ui/source_view.h
@@ -7,6 +7,7 @@
 #include <filesystem>
 #include <optional>
 #include <string>
+#include <unordered_set>
 #include <vector>
 
 struct ImDrawList;
@@ -46,6 +47,14 @@ namespace Hsdbg
         auto draw(Debugger& debugger) -> void;
 
         auto set_highlighted_line(uint32_t line) -> void;
+
+        // the lines of the function the selected frame is in (zero for unknown):
+        // live values are only annotated inside it
+        auto set_frame_extent(uint32_t first, uint32_t last) -> void;
+
+        // names of locals that moved since the previous stop; their annotations
+        // take the accent. the set is owned by the caller and read each frame
+        auto set_changed_locals(const std::unordered_set<std::string>* names) -> void { m_changed_locals = names; }
         auto set_highlighting(bool enabled) -> void { m_highlighting_enabled = enabled; }
         auto set_line_numbers(bool enabled) -> void { m_line_numbers = enabled; }
         auto set_highlight_current_line(bool enabled) -> void { m_highlight_current_line = enabled; }
@@ -54,8 +63,12 @@ namespace Hsdbg
         auto set_syntax_color(size_t kind, unsigned int color) -> void { m_syntax_colors[kind] = color; }
         auto set_current_line_color(unsigned int color) -> void { m_current_line_color = color; }
 
-        // the monospace face the code (and its gutter) is rendered in
+        // the monospace face the code (and its gutter) is rendered in, and its
+        // size in px before ui scaling: cmd/ctrl + wheel over the code nudges the
+        // size, and the ui reads it back to persist it
         auto set_mono_font(ImFont* font) -> void { m_mono_font = font; }
+        auto set_font_size(float size) -> void { m_font_size = size; }
+        auto font_size() const -> float { return m_font_size; }
 
         auto path() const -> const std::filesystem::path& { return m_path; }
         auto line_count() const -> size_t { return m_lines.size(); }
@@ -77,6 +90,7 @@ namespace Hsdbg
     private:
         auto draw_open_bar() -> void;
         auto draw_lines(Debugger& debugger) -> void;
+        auto handle_zoom() -> void;
 
         // renders a highlighted macro name: hovering previews its expansion,
         // clicking records the invocation for the macros panel to open
@@ -107,5 +121,18 @@ namespace Hsdbg
         std::string m_error;
         uint32_t m_highlighted_line = 0;
         bool m_scroll_to_highlight = false;
+
+        // the location bar shows the open path as a breadcrumb; a click swaps in
+        // the text field (and asks for its focus) until a file opens or it loses focus
+        bool m_editing_path = false;
+        bool m_focus_path = false;
+
+        float m_font_size = 16.0f;
+        float m_zoom_accumulator = 0.0f; // wheel travel not yet turned into a step
+        double m_zoom_badge_until = 0.0; // the "NN px" badge shows until this time
+
+        uint32_t m_frame_first_line = 0;
+        uint32_t m_frame_last_line = 0;
+        const std::unordered_set<std::string>* m_changed_locals = nullptr;
     };
 }