From 4b4591dd72e2e9e9b2ee3f00afe7963c8f578616 Mon Sep 17 00:00:00 2001
From: Matthias Melcher <github@matthiasm.com>
Date: Fri, 4 Nov 2022 17:49:37 +0100
Subject: Fluid now stores set sizes for Fl_Flex. (#529)

https://groups.google.com/g/fltkcoredev/c/2JA-CcTbrX4
---
 fluid/Fl_Group_Type.cxx | 37 +++++++++++++++++++++----------------
 fluid/Fl_Group_Type.h   |  6 +++---
 2 files changed, 24 insertions(+), 19 deletions(-)

diff --git a/fluid/Fl_Group_Type.cxx b/fluid/Fl_Group_Type.cxx
index 5bc3525d9..d83d7fa2d 100644
--- a/fluid/Fl_Group_Type.cxx
+++ b/fluid/Fl_Group_Type.cxx
@@ -214,10 +214,12 @@ void Fl_Flex_Type::write_properties()
     if (f->set_size(f->child(i)))
       nSet++;
   if (nSet) {
-    write_string("size_set {%d", nSet);
-    for (int i=0; i<f->children(); i++)
-      if (f->set_size(f->child(i)))
-        write_string(" %d", i);
+    write_string("set_size_tuples {%d", nSet);
+    for (int i=0; i<f->children(); i++) {
+      Fl_Widget *ci = f->child(i);
+      if (f->set_size(ci))
+        write_string(" %d %d", i, f->horizontal() ? ci->w() : ci->h());
+    }
     write_string("}");
   }
 }
@@ -234,14 +236,16 @@ void Fl_Flex_Type::read_property(const char *c)
     int g;
     if (sscanf(read_word(),"%d",&g))
       f->gap(g);
-  } else if (!strcmp(c,"size_set")) {
+  } else if (!strcmp(c,"set_size_tuples")) {
     read_word(1); // must be '{'
     const char *nStr = read_word(1); // number of indices in table
-    fixedSizeTableSize = atoi(nStr);
-    fixedSizeTable = new int[fixedSizeTableSize];
-    for (int i=0; i<fixedSizeTableSize; i++) {
+    fixedSizeTupleSize = atoi(nStr);
+    fixedSizeTuple = new int[fixedSizeTupleSize*2];
+    for (int i=0; i<fixedSizeTupleSize; i++) {
       const char *ix = read_word(1); // child at that index is fixed in size
-      fixedSizeTable[i] = atoi(ix);
+      fixedSizeTuple[i*2] = atoi(ix);
+      const char *size = read_word(1); // fixed size of that child
+      fixedSizeTuple[i*2+1] = atoi(size);
     }
     read_word(1); // must be '}'
   } else {
@@ -251,18 +255,19 @@ void Fl_Flex_Type::read_property(const char *c)
 
 void Fl_Flex_Type::postprocess_read()
 {
-  if (fixedSizeTableSize==0) return;
+  if (fixedSizeTupleSize==0) return;
   Fl_Flex* f = (Fl_Flex*)o;
-  for (int i=0; i<fixedSizeTableSize; i++) {
-    int ix = fixedSizeTable[i];
+  for (int i=0; i<fixedSizeTupleSize; i++) {
+    int ix = fixedSizeTuple[2*i];
+    int size = fixedSizeTuple[2*i+1];
     if (ix>=0 && ix<f->children()) {
       Fl_Widget *ci = f->child(ix);
-      f->set_size(ci, f->horizontal()?ci->w():ci->h());
+      f->set_size(ci, size);
     }
   }
-  fixedSizeTableSize = 0;
-  delete[] fixedSizeTable;
-  fixedSizeTable = NULL;
+  fixedSizeTupleSize = 0;
+  delete[] fixedSizeTuple;
+  fixedSizeTuple = NULL;
   f->layout();
   suspend_auto_layout = 0;
 }
diff --git a/fluid/Fl_Group_Type.h b/fluid/Fl_Group_Type.h
index 3d21a44b6..f0ab0f8ce 100644
--- a/fluid/Fl_Group_Type.h
+++ b/fluid/Fl_Group_Type.h
@@ -88,11 +88,11 @@ extern Fl_Menu_Item flex_type_menu[];
 
 class Fl_Flex_Type : public Fl_Group_Type {
   Fl_Menu_Item *subtypes() {return flex_type_menu;}
-  int fixedSizeTableSize;
-  int *fixedSizeTable;
+  int fixedSizeTupleSize; /* number of pairs in array */
+  int *fixedSizeTuple; /* [ index, size, index2, size2, ... ] */
   int suspend_auto_layout;
 public:
-  Fl_Flex_Type() : fixedSizeTableSize(0), fixedSizeTable(NULL), suspend_auto_layout(0) { }
+  Fl_Flex_Type() : fixedSizeTupleSize(0), fixedSizeTuple(NULL), suspend_auto_layout(0) { }
   virtual const char *type_name() {return flex_type_name;}
   virtual const char *alt_type_name() {return "fltk::FlexGroup";}
   Fl_Widget_Type *_make() { return new Fl_Flex_Type(); }
-- 
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