keep trying to move column numbers to common structs

Signed-off-by: Jeff Carr <jcarr@wit.com>

gui-example1/main.go

@@ -1,6 +1,7 @@
 package main
 
 import "github.com/andlabs/ui"
+import _ "github.com/andlabs/ui/winmanifest"
 
 var mainwin *ui.Window
 

table.go

@@ -31,6 +31,7 @@ type uiColumn struct {
 type modelHandler struct {
 	name		string
 	rows		int
+	bgcolorColumn	int
 	yellowRow	int
 	checkStates	[]int
 	vms		[]vmRowData
@@ -52,6 +53,7 @@ func newDefaultModelHandler() *modelHandler {
 func newJcarrModelHandler() *modelHandler {
 	mh := new(modelHandler)
 	mh.rows = 10
+	mh.bgcolorColumn = 0
 	mh.checkStates = make([]int, mh.rows)
 	mh.vms         = make([]vmRowData, mh.rows)
 	mh.vms[8].hostname = "jcarr"
@@ -86,11 +88,6 @@ func (mh *modelHandler) ColumnTypes(m *ui.TableModel) []ui.TableValue {
 	}
 }
 
-func (mh *modelHandler) NumRows(m *ui.TableModel) int {
-	// log.Println("NumRows() with m=", m)
-	return mh.rows
-}
-
 var img [2]*ui.Image
 
 func (mh *modelHandler) CellValue(m *ui.TableModel, row, column int) ui.TableValue {
@@ -223,7 +220,7 @@ func makeJcarrtable(name string) (*ui.Table, *modelHandler, *ui.TableModel) {
 	table := ui.NewTable(
 		&ui.TableParams{
 			Model:	model,
-			RowBackgroundColorModelColumn:	0,
+			RowBackgroundColorModelColumn:	mh.bgcolorColumn,
 	})
 
 	table.AppendTextColumn("hostname", 1, ui.TableModelColumnNeverEditable, nil)

tableCallbacks.go

@@ -0,0 +1,8 @@
+package main
+
+import "github.com/andlabs/ui"
+
+func (mh *modelHandler) NumRows(m *ui.TableModel) int {
+	// log.Println("NumRows() with m=", m)
+	return mh.rows
+}