trap toolkit panics

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

main.go

@@ -6,6 +6,7 @@ package main
 
 import (
 	"os"
+	"runtime/debug"
 
 	"go.wit.com/log"
 	"go.wit.com/toolkits/tree"
@@ -30,7 +31,7 @@ func init() {
 	log.Log(NOW, "Init() start pluginChan")
 	// go catchActionChannel()
 	log.Sleep(.1) // probably not needed, but in here for now under development
-	go main()
+	go mainGogui()
 	log.Sleep(.1) // probably not needed, but in here for now under development
 }
 
@@ -58,6 +59,19 @@ func standardExit() {
 var outf *os.File
 
 func main() {
+}
+
+func mainGogui() {
+	defer func() {
+		if r := recover(); r != nil {
+			log.Warn("YAHOOOO Recovered in guiMain application:", r)
+			log.Warn("Recovered from panic:", r)
+			log.Warn("Stack trace:")
+			debug.PrintStack()
+			me.myTree.SendToolkitPanic()
+			return
+		}
+	}()
 	var err error
 	log.Log(INFO, "main() start Init()")
 
@@ -75,7 +89,4 @@ func main() {
 	ferr, _ := os.OpenFile("/tmp/witgui.err", os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0664)
 	os.Stderr = ferr
 	gocuiMain()
-
-	log.Log(NOW, "MouseMain() closed")
-	standardExit()
 }

size.go

@@ -22,7 +22,9 @@ func (tk *guiWidget) Size() (int, int) {
 		var maxH int = 0
 		var maxW int = 0
 		for _, child := range tk.children {
-			if tk.hidden { continue }
+			if tk.hidden {
+				continue
+			}
 			sizeW, sizeH := child.Size()
 			maxW += sizeW
 			if sizeH > maxH {
@@ -41,7 +43,9 @@ func (tk *guiWidget) Size() (int, int) {
 		maxH := tk.gocuiSize.Height()
 
 		for _, child := range tk.children {
-			if tk.hidden { continue }
+			if tk.hidden {
+				continue
+			}
 			sizeW, sizeH := child.Size()
 
 			// increment straight down
@@ -59,11 +63,15 @@ func (tk *guiWidget) Size() (int, int) {
 }
 
 func (w *guiWidget) sizeGrid() (int, int) {
-	if w.hidden { return 0, 0 }
+	if w.hidden {
+		return 0, 0
+	}
 
 	// first compute the max sizes of the rows and columns
 	for _, child := range w.children {
-		if w.hidden { continue }
+		if w.hidden {
+			continue
+		}
 		sizeW, sizeH := child.Size()
 
 		// set the child's realWidth, and grid offset
@@ -91,12 +99,16 @@ func (w *guiWidget) sizeBox() (int, int) {
 	if w.WidgetType != widget.Box {
 		return 0, 0
 	}
-	if w.hidden { return 0, 0 }
+	if w.hidden {
+		return 0, 0
+	}
 	var maxW int = 0
 	var maxH int = 0
 
 	for _, child := range w.children {
-		if w.hidden {continue}
+		if w.hidden {
+			continue
+		}
 		sizeW, sizeH := child.Size()
 		if child.direction == widget.Horizontal {
 			maxW += sizeW