func (b *Builder) InitWidget(d Widget, w walk.Widget, customInit func() error) error {
b.level++
defer func() {
b.level--
}()
var succeeded bool
defer func() {
if !succeeded {
w.Dispose()
}
}()
b.declWidgets = append(b.declWidgets, declWidget{d, w})
// Widget
name, _, _, font, toolTipText, minSize, maxSize, stretchFactor, row, rowSpan, column, columnSpan, contextMenuActions, onKeyDown, onMouseDown, onMouseMove, onMouseUp, onSizeChanged := d.WidgetInfo()
w.SetName(name)
if name != "" {
b.name2Widget[name] = w
}
if toolTipText != "" {
if err := w.SetToolTipText(toolTipText); err != nil {
return err
}
}
if err := w.SetMinMaxSize(minSize.toW(), maxSize.toW()); err != nil {
return err
}
if len(contextMenuActions) > 0 {
cm, err := walk.NewMenu()
if err != nil {
return err
}
if err := addToActionList(cm.Actions(), contextMenuActions); err != nil {
return err
}
w.SetContextMenu(cm)
}
if onKeyDown != nil {
w.KeyDown().Attach(onKeyDown)
}
if onMouseDown != nil {
w.MouseDown().Attach(onMouseDown)
}
if onMouseMove != nil {
w.MouseMove().Attach(onMouseMove)
}
if onMouseUp != nil {
w.MouseUp().Attach(onMouseUp)
}
if onSizeChanged != nil {
w.SizeChanged().Attach(onSizeChanged)
}
if p := w.Parent(); p != nil {
switch l := p.Layout().(type) {
case *walk.BoxLayout:
if stretchFactor < 1 {
stretchFactor = 1
}
if err := l.SetStretchFactor(w, stretchFactor); err != nil {
return err
}
case *walk.GridLayout:
cs := columnSpan
if cs < 1 {
cs = 1
}
rs := rowSpan
if rs < 1 {
rs = 1
}
r := walk.Rectangle{column, row, cs, rs}
if err := l.SetRange(w, r); err != nil {
return err
}
}
}
oldParent := b.parent
// Container
var db *walk.DataBinder
if dc, ok := d.(Container); ok {
if wc, ok := w.(walk.Container); ok {
dataBinder, layout, children := dc.ContainerInfo()
if layout != nil {
l, err := layout.Create()
if err != nil {
return err
}
if err := wc.SetLayout(l); err != nil {
return err
}
}
b.parent = wc
defer func() {
b.parent = oldParent
}()
for _, child := range children {
if err := child.Create(b); err != nil {
return err
}
}
var err error
if db, err = dataBinder.create(); err != nil {
return err
}
}
}
// Custom
if customInit != nil {
if err := customInit(); err != nil {
return err
}
}
b.parent = oldParent
// Widget continued
if font != nil {
if f, err := font.Create(); err != nil {
return err
} else if f != nil {
w.SetFont(f)
}
}
if b.level == 1 {
if err := b.initProperties(); err != nil {
return err
}
}
// Call Reset on DataBinder after customInit, so a Dialog gets a chance to first
// wire up its DefaultButton to the CanSubmitChanged event of a DataBinder.
if db != nil {
if _, ok := d.(Container); ok {
if wc, ok := w.(walk.Container); ok {
// FIXME: Currently SetDataBinder must be called after initProperties.
wc.SetDataBinder(db)
if err := db.Reset(); err != nil {
return err
}
}
}
}
if b.level == 1 {
for _, f := range b.deferredFuncs {
if err := f(); err != nil {
return err
}
}
}
succeeded = true
return nil
}
func InitWidget(d Widget, w walk.Widget, customInit func() error) error {
var succeeded bool
defer func() {
if !succeeded {
w.Dispose()
}
}()
// Widget
name, disabled, hidden, font, minSize, maxSize, stretchFactor, row, rowSpan, column, columnSpan, contextMenuActions := d.WidgetInfo()
w.SetName(name)
if err := w.SetMinMaxSize(minSize.toW(), maxSize.toW()); err != nil {
return err
}
if len(contextMenuActions) > 0 {
cm, err := walk.NewMenu()
if err != nil {
return err
}
if err := addToActionList(cm.Actions(), contextMenuActions); err != nil {
return err
}
w.SetContextMenu(cm)
}
if p := w.Parent(); p != nil {
switch l := p.Layout().(type) {
case *walk.BoxLayout:
if stretchFactor < 1 {
stretchFactor = 1
}
if err := l.SetStretchFactor(w, stretchFactor); err != nil {
return err
}
case *walk.GridLayout:
cs := columnSpan
if cs < 1 {
cs = 1
}
rs := rowSpan
if rs < 1 {
rs = 1
}
r := walk.Rectangle{column, row, cs, rs}
if err := l.SetRange(w, r); err != nil {
return err
}
}
}
// Container
if dc, ok := d.(Container); ok {
if wc, ok := w.(walk.Container); ok {
layout, children := dc.ContainerInfo()
if layout != nil {
l, err := layout.Create()
if err != nil {
return err
}
if err := wc.SetLayout(l); err != nil {
return err
}
}
for _, child := range children {
if err := child.Create(wc); err != nil {
return err
}
}
}
}
// Widget continued
w.SetEnabled(!disabled)
w.SetVisible(!hidden)
if font != nil {
if f, err := font.Create(); err != nil {
return err
} else if f != nil {
w.SetFont(f)
}
}
// Custom
if customInit != nil {
if err := customInit(); err != nil {
return err
}
}
succeeded = true
return nil
}