fix: code cleanup

engine/include/pdfengine/display_list.hpp

@@ -10,13 +10,11 @@ namespace pdfengine {
 
 class CommandVisitor;
 
-// Base class for all drawing commands
 struct Command {
     virtual ~Command() = default;
     virtual void accept(CommandVisitor& visitor) const = 0;
 };
 
-// --- Specific Command Types ---
 
 struct SaveStateCommand : public Command {
     void accept(CommandVisitor& visitor) const override;
@@ -41,7 +39,6 @@ struct FillRectCommand : public Command {
 struct DrawTextCommand : public Command {
     std::string text;
     float x, y;
-    // We would eventually have a font reference here too
     DrawTextCommand(std::string text, float x, float y) : text(std::move(text)), x(x), y(y) {}
     void accept(CommandVisitor& visitor) const override;
 };
@@ -69,9 +66,7 @@ struct DrawImageCommand : public Command {
 };
 
 
-// --- Visitor Interface ---
 
-// The visitor interface that the renderer (or replay engine) implements
 class CommandVisitor {
 public:
     virtual ~CommandVisitor() = default;
@@ -85,20 +80,15 @@ public:
     virtual void visit(const DrawImageCommand& cmd) = 0;
 };
 
-// --- Display List Container ---
 
-// A container that stores a sequence of drawing commands.
 class DisplayList {
 public:
     DisplayList() = default;
     
-    // Add commands directly
     void addCommand(std::unique_ptr<Command> cmd);
 
-    // Replay the commands to a visitor (renderer)
     void replay(CommandVisitor& visitor) const;
 
-    // Helper methods to easily append common commands
     void saveState();
     void restoreState();
     void setTransform(const Matrix& m);
@@ -115,4 +105,4 @@ private:
     std::vector<std::unique_ptr<Command>> m_commands;
 };
 
-} // namespace pdfengine
+}