From d83d89679beb0d92b140684230936d264a182679 Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Thu, 14 Apr 2022 11:07:12 +0200
Subject: [PATCH] Fix for issue #429 :  Segfault with Ctrl+/- with current git
 version

---
 FL/Fl_Bitmap.H    | 4 ++--
 FL/Fl_Pixmap.H    | 4 ++--
 src/Fl_Bitmap.cxx | 2 +-
 src/Fl_Pixmap.cxx | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/FL/Fl_Bitmap.H b/FL/Fl_Bitmap.H
index e0fc2244d..23fd79abd 100644
--- a/FL/Fl_Bitmap.H
+++ b/FL/Fl_Bitmap.H
@@ -50,8 +50,8 @@ public:
   Fl_Bitmap(const char *bits, int W, int H) :
     Fl_Image(W,H,0), array((const uchar *)bits), alloc_array(0), id_(0), cache_w_(0),cache_h_(0) {data((const char **)&array, 1);}
   virtual ~Fl_Bitmap();
-  virtual Fl_Image *copy(int W, int H);
-  Fl_Image *copy() { return Fl_Image::copy(); }
+  virtual Fl_Image *copy(int W, int H) const;
+  Fl_Image *copy() const { return Fl_Image::copy(); }
   virtual void draw(int X, int Y, int W, int H, int cx=0, int cy=0);
   void draw(int X, int Y) {draw(X, Y, w(), h(), 0, 0);}
   virtual void label(Fl_Widget*w);
diff --git a/FL/Fl_Pixmap.H b/FL/Fl_Pixmap.H
index c446a92be..caa0e9371 100644
--- a/FL/Fl_Pixmap.H
+++ b/FL/Fl_Pixmap.H
@@ -63,8 +63,8 @@ public:
   /**    The constructors create a new pixmap from the specified XPM data.  */
   explicit Fl_Pixmap(const uchar* const * D) : Fl_Image(-1,0,1), alloc_data(0), id_(0), mask_(0) {set_data((const char*const*)D); measure();}
   virtual ~Fl_Pixmap();
-  virtual Fl_Image *copy(int W, int H);
-  Fl_Image *copy() { return Fl_Image::copy(); }
+  virtual Fl_Image *copy(int W, int H) const;
+  Fl_Image *copy() const { return Fl_Image::copy(); }
   virtual void color_average(Fl_Color c, float i);
   virtual void desaturate();
   virtual void draw(int X, int Y, int W, int H, int cx=0, int cy=0);
diff --git a/src/Fl_Bitmap.cxx b/src/Fl_Bitmap.cxx
index f760ac979..cbe997827 100644
--- a/src/Fl_Bitmap.cxx
+++ b/src/Fl_Bitmap.cxx
@@ -55,7 +55,7 @@ void Fl_Bitmap::label(Fl_Menu_Item* m) {
   m->label(FL_IMAGE_LABEL, (const char*)this);
 }
 
-Fl_Image *Fl_Bitmap::copy(int W, int H) {
+Fl_Image *Fl_Bitmap::copy(int W, int H) const {
   Fl_Bitmap     *new_image;     // New RGB image
   uchar         *new_array;     // New array for image data
 
diff --git a/src/Fl_Pixmap.cxx b/src/Fl_Pixmap.cxx
index e6c6cc4c3..e8725102a 100644
--- a/src/Fl_Pixmap.cxx
+++ b/src/Fl_Pixmap.cxx
@@ -125,7 +125,7 @@ void Fl_Pixmap::copy_data() {
   alloc_data = 1;
 }
 
-Fl_Image *Fl_Pixmap::copy(int W, int H) {
+Fl_Image *Fl_Pixmap::copy(int W, int H) const {
   Fl_Pixmap     *new_image;     // New pixmap
   if (!data()) { // happens with bad pixmap data
     return new Fl_Pixmap((char *const*)0);