From 0e570fb6729ff6b97249256c2c9d5f3aa58c7bb4 Mon Sep 17 00:00:00 2001
From: Matthias Melcher <github@matthiasm.com>
Date: Sun, 4 Jan 2026 15:50:49 +0100
Subject: Add C++11 Fl_Valuator::format API.

This is helpful for writing language wrapper, in
this particular case for PyFLTK.
---
 FL/Fl_Color_Chooser.H | 5 ++++-
 FL/Fl_Valuator.H      | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

(limited to 'FL')

diff --git a/FL/Fl_Color_Chooser.H b/FL/Fl_Color_Chooser.H
index e1f085b91..d3e56bdef 100644
--- a/FL/Fl_Color_Chooser.H
+++ b/FL/Fl_Color_Chooser.H
@@ -1,7 +1,7 @@
 //
 // Color chooser header file for the Fast Light Tool Kit (FLTK).
 //
-// Copyright 1998-2019 by Bill Spitzak and others.
+// Copyright 1998-2026 by Bill Spitzak and others.
 //
 // This library is free software. Distribution and use rights are outlined in
 // the file "COPYING" which should have been included with this file.  If this
@@ -30,6 +30,8 @@
 #include <FL/Fl_Choice.H>
 #include <FL/Fl_Value_Input.H>
 
+#include <string>
+
 #ifndef FL_DOXYGEN
 
 /** For internal use only */
@@ -60,6 +62,7 @@ public:
 class FL_EXPORT Flcc_Value_Input : public Fl_Value_Input {
 public:
   int format(char*) override;
+  std::string format_str() override;
   Flcc_Value_Input(int X, int Y, int W, int H) : Fl_Value_Input(X,Y,W,H) {}
 };
 
diff --git a/FL/Fl_Valuator.H b/FL/Fl_Valuator.H
index 7587bb298..74f17049a 100644
--- a/FL/Fl_Valuator.H
+++ b/FL/Fl_Valuator.H
@@ -1,7 +1,7 @@
 //
 // Valuator header file for the Fast Light Tool Kit (FLTK).
 //
-// Copyright 1998-2022 by Bill Spitzak and others.
+// Copyright 1998-2026 by Bill Spitzak and others.
 //
 // This library is free software. Distribution and use rights are outlined in
 // the file "COPYING" which should have been included with this file.  If this
@@ -24,6 +24,8 @@
 #include "Fl_Widget.H"
 #endif
 
+#include <string>
+
 // shared type() values for classes that work in both directions:
 #define FL_VERTICAL             0 ///< The valuator can work vertically
 #define FL_HORIZONTAL           1 ///< The valuator can work horizontally
@@ -126,6 +128,7 @@ public:
   int value(double);
 
   virtual int format(char*);
+  virtual std::string format_str();
   double round(double); // round to nearest multiple of step
   double clamp(double); // keep in range
   double increment(double, int); // add n*step to value
-- 
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