I can't fathom out how to get my layout to update once the window is displayed. I must be missing something!
Here is a simplified version of code I have tried. Selecting the second tab, and clicking the toggle should result in a line being added (and then subsequently removed) to the first tab.
selectedMarkets is being changed, but the rebuilt layout does not appear.
package main
import (
"slices"
"github.com/gen2brain/iup-go/iup"
)
type marketControls struct {
mCVal string
}
var (
selectedMarkets = make(map[string]marketControls)
dlg iup.Ihandle
marketValuesHandle iup.Ihandle
)
func main() {
// Test value to show it is added to layout
mC := new(marketControls)
mC.mCVal = "woo"
selectedMarkets["01"] = *mC
iup.Open()
defer iup.Close()
marketValuesHandle = buildMarketPanel()
dlg = iup.Dialog(
iup.Hbox(
iup.Tabs(
marketValuesHandle,
buildSelectionPanel(),
).SetAttributes("TABTITLE0=\"Market Values\",TABTITLE1=\"Market Selections\",MINSIZE=338x, MAXSIZE=340x"),
),
).SetAttributes("MARGIN=10x10")
setSelectionsCallbacks()
iup.Show(dlg)
iup.MainLoop()
}
func buildMarketPanel() iup.Ihandle {
gb := iup.GridBox().SetAttributes(map[string]string{
"NUMDIV": "2",
"NORMALIZESIZE": "BOTH",
"ORIENTATION": "HORIZONTAL",
"ALIGNMENTCOL": "ACENTER",
"MARGIN": "10x10",
"GAPLIN": "20",
"GAPCOL": "10",
})
gb = fillMarketPanel(gb)
return gb
}
func fillMarketPanel(gb iup.Ihandle) iup.Ihandle {
gb = iup.Append(gb, iup.Label("Market").SetAttributes("FONTSTYLE=Bold"))
gb = iup.Append(gb, iup.Label("Value").SetAttributes("FONTSTYLE=Bold"))
var mCKeys []string
for key := range selectedMarkets {
mCKeys = append(mCKeys, key)
}
slices.Sort(mCKeys)
for _, key := range mCKeys {
gb = iup.Append(gb, iup.Label(key))
marketVal := selectedMarkets[key].mCVal
gb = iup.Append(gb, iup.Label(marketVal))
}
return gb
}
func buildSelectionPanel() iup.Ihandle {
gb := iup.GridBox(
iup.Label("Selections").SetAttributes("FONTSTYLE=Bold"),
iup.Toggle(" Sel 00").SetHandle("sp00"),
).SetAttributes(map[string]string{
"NUMDIV": "1",
"HOMOGENEOUSCOL": "Yes",
"NORMALIZESIZE": "BOTH",
"ORIENTATION": "HORIZONTAL",
"ALIGNMENTLIN": "ACENTER",
"ALIGNMENTCOL": "ACENTER",
"MARGIN": "10x10",
"GAPLIN": "10",
"GAPCOL": "10",
})
return gb
}
func setSelectionsCallbacks() {
iup.SetCallback(iup.GetHandle("sp00"), "VALUECHANGED_CB", iup.ValueChangedFunc(changedSelection))
}
func changedSelection(ih iup.Ihandle) int {
offOn := ih.GetAttribute("VALUE")
if offOn == "ON" {
mC := new(marketControls)
mC.mCVal = ""
selectedMarkets["00"] = *mC
} else {
delete(selectedMarkets, "00")
}
marketValuesHandle = buildMarketPanel()
// Tried each of these
iup.Redraw(marketValuesHandle, 1)
iup.Update(marketValuesHandle)
iup.Redraw(dlg, 1)
iup.Update(dlg)
return iup.DEFAULT
}
A little more complicated than I expected, but here's my fix after Antonio's suggestion:
package main
import (
"slices"
"github.com/gen2brain/iup-go/iup"
)
type marketControls struct {
mCVal string
}
var (
selectedMarkets = make(map[string]marketControls)
tabsHandle iup.Ihandle
marketValuesHandle iup.Ihandle
marketSelectionsHandle iup.Ihandle
)
func main() {
// Test value to show it is added to layout
mC := new(marketControls)
mC.mCVal = "woo"
selectedMarkets["01"] = *mC
iup.Open()
defer iup.Close()
tabsHandle = iup.Tabs().SetAttributes("TABTITLE0=\"Market Values\",TABTITLE1=\"Market Selections\",MINSIZE=338x, MAXSIZE=340x")
marketValuesHandle = buildMarketPanel()
marketSelectionsHandle = buildSelectionPanel()
tabsHandle = iup.Append(tabsHandle, marketValuesHandle)
tabsHandle = iup.Append(tabsHandle, marketSelectionsHandle)
dlg := iup.Dialog(
iup.Hbox(
tabsHandle,
),
).SetAttributes("MARGIN=10x10")
setSelectionsCallbacks()
iup.Show(dlg)
iup.MainLoop()
}
func buildMarketPanel() iup.Ihandle {
gb := iup.GridBox().SetAttributes(map[string]string{
"NUMDIV": "2",
"NORMALIZESIZE": "BOTH",
"ORIENTATION": "HORIZONTAL",
"ALIGNMENTCOL": "ACENTER",
"MARGIN": "10x10",
"GAPLIN": "20",
"GAPCOL": "10",
})
gb = fillMarketPanel(gb)
return gb
}
func fillMarketPanel(gb iup.Ihandle) iup.Ihandle {
gb = iup.Append(gb, iup.Label("Market").SetAttributes("FONTSTYLE=Bold"))
gb = iup.Append(gb, iup.Label("Value").SetAttributes("FONTSTYLE=Bold"))
var mCKeys []string
for key := range selectedMarkets {
mCKeys = append(mCKeys, key)
}
slices.Sort(mCKeys)
for _, key := range mCKeys {
gb = iup.Append(gb, iup.Label(key))
marketVal := selectedMarkets[key].mCVal
gb = iup.Append(gb, iup.Label(marketVal))
}
return gb
}
func buildSelectionPanel() iup.Ihandle {
gb := iup.GridBox(
iup.Label("Selections").SetAttributes("FONTSTYLE=Bold"),
iup.Toggle(" Sel 00").SetHandle("sp00"),
).SetAttributes(map[string]string{
"NUMDIV": "1",
"HOMOGENEOUSCOL": "Yes",
"NORMALIZESIZE": "BOTH",
"ORIENTATION": "HORIZONTAL",
"ALIGNMENTLIN": "ACENTER",
"ALIGNMENTCOL": "ACENTER",
"MARGIN": "10x10",
"GAPLIN": "10",
"GAPCOL": "10",
})
return gb
}
func setSelectionsCallbacks() {
iup.SetCallback(iup.GetHandle("sp00"), "VALUECHANGED_CB", iup.ValueChangedFunc(changedSelection))
}
func changedSelection(ih iup.Ihandle) int {
offOn := ih.GetAttribute("VALUE")
if offOn == "ON" {
mC := new(marketControls)
mC.mCVal = ""
selectedMarkets["00"] = *mC
} else {
delete(selectedMarkets, "00")
}
iup.Unmap(marketValuesHandle)
iup.Detach(marketValuesHandle)
marketValuesHandle = buildMarketPanel()
tabsHandle = iup.Insert(tabsHandle, marketSelectionsHandle, marketValuesHandle).SetAttributes("TABTITLE0=\"Market Values\",MINSIZE=338x, MAXSIZE=340x")
iup.Map(marketValuesHandle)
iup.Refresh(tabsHandle)
return iup.DEFAULT
}
When you dynamically add controls to a dialog, the new controls are not automatically mapped into the native system. You can call iup.Map(gb) after fillMarketPanel for instance. Notice that you don't need to call iup.Map for each new control if they all share the same new hierarchy, i.e. iup.Map is a recursive call.