update

components/dwin/var_icon.cpp

@@ -32,7 +32,10 @@ bool VarIcon::init(DwinScreen *dwin_screen, uint16_t descript_add) {
 //   sscanf(pos, "(%d,%d)", &posx, &posy);
 //   initcfg(m_dwin_screen->alloc_one_var_icon(), posx, posy, iconpath, initval);
 // }
-void VarIcon::initcfg(int x, int y, const char *iconpath, uint16_t initval) { initcfg(m_dwin_screen->alloc_free_ram(1), x, y, iconpath, initval); }
+void VarIcon::initcfg(int x, int y, const char *iconpath, uint16_t initval) {
+  if (m_varAdd == -1) m_varAdd = m_dwin_screen->alloc_free_ram(1);
+  initcfg(m_varAdd, x, y, iconpath, initval);
+}
 
 void VarIcon::initcfg(uint16_t valpointerAdd, uint16_t posx, uint16_t posy, const char *iconpath, uint16_t initval) {
   // printf("initcfg %04x %d %d %s %d\n", valpointerAdd, posx, posy, iconpath, initval);
@@ -58,7 +61,10 @@ void VarIcon::initcfg(uint16_t valpointerAdd, uint16_t initval, uint16_t posx, u
   m_descript.m_ICONGamma = 0;
   m_descript.m_PICGamma  = 0;
   m_descript.m_FilterSet = 0x3F;
+  m_hide                 = false;
+  m_varAdd    = valpointerAdd;
 
+  // printf("initcfg %04x %d %d %d %d %d %d\n", valpointerAdd, posx, posy, iconlib, iconmin, iconmax, initval);
   flushcfg();
   setVal(initval);
 }
@@ -116,4 +122,7 @@ void VarIcon::show(bool showval) {
 
 VarIconDescript_t &VarIcon::getDescript() { return m_descript; }
 
-bool VarIcon::_setVal(uint16_t val) { return m_dwin_screen->write_varspace16(m_descript.m_VP, val, 100); }
+bool VarIcon::_setVal(uint16_t val) {
+  if (m_varAdd == -1) return false;
+  return m_dwin_screen->write_varspace16(m_descript.m_VP, val, 100);
+}

components/dwin/var_icon.hpp

@@ -37,6 +37,8 @@ class VarIcon {
 
   uint16_t m_val = 0xffff;
 
+  int m_varAdd = -1;
+
   bool m_hide = false;
 
  public: