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https://github.com/mappu/miqt.git
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uic: recursive emit basic go implementation
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parent
5a2c8b726f
commit
2a9fe93e21
@ -76,7 +76,7 @@ type UiFile struct {
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Class string `xml:"class"`
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Version string `xml:"version,attr"` // e.g. 4.0
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Widget []UiWidget `xml:"widget"`
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Widget UiWidget `xml:"widget"` // There's only one root widget
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Resources UiResources `xml:"resources"`
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Connections UiConnections `xml:"connections"`
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}
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@ -1,7 +1,9 @@
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package main
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import (
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"fmt"
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"go/format"
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"strconv"
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"strings"
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)
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@ -14,6 +16,7 @@ func collectClassNames_Widget(u UiWidget) []string {
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ret = append(ret, collectClassNames_Widget(w)...)
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}
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if u.Layout != nil {
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ret = append(ret, u.Layout.Name+" *qt."+u.Layout.Class)
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for _, li := range u.Layout.Items {
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ret = append(ret, collectClassNames_Widget(li.Widget)...)
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}
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@ -24,12 +27,153 @@ func collectClassNames_Widget(u UiWidget) []string {
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return ret
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}
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func collectClassNames(u UiFile) []string {
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var ret []string
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for _, w := range u.Widget {
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ret = append(ret, collectClassNames_Widget(w)...)
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func generateString(s *UiString, parentName string) string {
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if s.Notr || parentName == "" {
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return strconv.Quote(s.Value)
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}
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return ret
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return parentName + `.Tr(` + strconv.Quote(s.Value) + `)`
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}
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func generateWidget(w UiWidget, parentName string) (string, error) {
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ret := strings.Builder{}
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ret.WriteString(`
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ui.` + w.Name + ` = qt.New` + w.Class + `(` + parentName + `)
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ui.` + w.Name + `.SetObjectName(` + strconv.Quote(w.Name) + `)
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`)
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// Properties
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for _, prop := range w.Properties {
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setterFunc := `.Set` + strings.ToUpper(string(prop.Name[0])) + prop.Name[1:]
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if prop.Name == "geometry" {
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if !(prop.RectVal.X == 0 && prop.RectVal.Y == 0) {
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// Set all 4x properties
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ret.WriteString(`ui.` + w.Name + `.SetGeometry(qt.NewQRect(` + fmt.Sprintf("%d, %d, %d, %d", prop.RectVal.X, prop.RectVal.Y, prop.RectVal.Width, prop.RectVal.Height) + "))\n")
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} else if !(prop.RectVal.Width == 0 && prop.RectVal.Height == 0) {
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// Only width/height were supplied
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ret.WriteString(`ui.` + w.Name + `.Resize(` + fmt.Sprintf("%d, %d", prop.RectVal.Width, prop.RectVal.Height) + ")\n")
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}
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} else if prop.StringVal != nil {
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// "windowTitle", "title", "text"
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ret.WriteString(`ui.` + w.Name + setterFunc + `(` + generateString(prop.StringVal, parentName) + ")\n")
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} else if prop.EnumVal != nil {
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// "frameShape"
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ret.WriteString(`ui.` + w.Name + setterFunc + `(qt.` + strings.Replace(*prop.EnumVal, `::`, `__`, -1) + ")\n")
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} else {
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ret.WriteString("/* miqt-uic: no handler for property '" + prop.Name + "' */\n")
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}
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}
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// Layout
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if w.Layout != nil {
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ret.WriteString(`
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ui.` + w.Layout.Name + ` = qt.New` + w.Layout.Class + `(` + w.Name + `)
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ui.` + w.Layout.Name + `.SetObjectName(` + strconv.Quote(w.Layout.Name) + `)
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`)
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for _, child := range w.Layout.Items {
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// Layout items have the parent as the real QWidget parent and are
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// separately assigned to the layout afterwards
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nest, err := generateWidget(child.Widget, `ui.`+w.Name+`.QWidget`) // MIQT uses .QWidget to cast down
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if err != nil {
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return "", fmt.Errorf(w.Name+": %w", err)
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}
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ret.WriteString(nest)
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// Assign to layout
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switch w.Layout.Class {
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case `QFormLayout`:
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// Row and Column are always populated.
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rowPos := fmt.Sprintf("%d", *child.Row)
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var colPos string
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if *child.Column == 0 {
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colPos = `qt.QFormLayout__LabelRow`
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} else if *child.Column == 1 {
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colPos = `qt.QFormLayout__FieldRow`
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} else {
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ret.WriteString("/* miqt-uic: QFormLayout does not understand column index */\n")
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continue
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}
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// For QFormLayout it's SetWidget
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ret.WriteString(`
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ui.` + w.Layout.Name + `.SetWidget(` + rowPos + `, ` + colPos + `, ui.` + child.Widget.Name + `)
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`)
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case `QGridLayout`:
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// For QGridLayout it's AddWidget
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// FIXME in Miqt this function has optionals, needs to be called with the correct arity
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// TODO support rowSpan, columnSpan
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ret.WriteString(`
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ui.` + w.Layout.Name + `.AddWidget(ui.` + child.Widget.Name + `, ` + fmt.Sprintf("%d, %d", *child.Row, *child.Column) + `)
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`)
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default:
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ret.WriteString("/* miqt-uic: no handler for layout '" + w.Layout.Class + "' */\n")
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}
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}
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}
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// Actions
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for _, a := range w.Actions {
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ret.WriteString(`
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ui.` + a.Name + ` = qt.NewQAction(` + parentName + `)
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ui.` + a.Name + `.SetObjectName(` + strconv.Quote(a.Name) + `)
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`)
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}
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// AddActions
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// TODO
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// w.AddActions
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// Items
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for _, itm := range w.Items {
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// FIXME add details
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_ = itm
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ret.WriteString("ui." + w.Name + `.AddItem()` + "\n")
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}
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// Attributes
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// TODO
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// w.Attributes
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// Columns
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// TODO
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// w.Columns
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// Recurse children
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setCentralWidget := ""
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for _, child := range w.Widgets {
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nest, err := generateWidget(child, `ui.`+w.Name)
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if err != nil {
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return "", fmt.Errorf(w.Name+": %w", err)
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}
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ret.WriteString(nest)
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// QMainWindow CentralWidget handling
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// The first listed class can be the central widget.
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// TODO should it be the first child with a layout? But need to handle windows with no layout
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if w.Class == `QMainWindow` && setCentralWidget == "" {
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ret.WriteString(`ui.` + w.Name + `.SetCentralWidget(ui.` + child.Name + ") // Set central widget \n")
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setCentralWidget = w.Name
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}
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}
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return ret.String(), nil
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}
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func generate(packageName string, goGenerateArgs string, u UiFile) ([]byte, error) {
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@ -46,25 +190,47 @@ import (
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)
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type ` + u.Class + `Ui struct {
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` + strings.Join(collectClassNames(u), "\n") + `
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` + strings.Join(collectClassNames_Widget(u.Widget), "\n") + `
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}
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// New` + u.Class + `Ui creates all Qt widget classes for ` + u.Class + `.
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func New` + u.Class + `Ui() *` + u.Class + `Ui {
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ui := &` + u.Class + `Ui{}
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`)
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// ...
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nest, err := generateWidget(u.Widget, "")
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if err != nil {
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return nil, err
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}
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ret.WriteString(nest)
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ret.WriteString(`
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return ui
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}
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// RetranslateUi reapplies all text translations.
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func (u *` + u.Class + `Ui) RetranslateUi() {
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panic("TODO")
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`)
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// Trap and repeat all lines from `.nest` that include .Tr(.
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for _, line := range strings.Split(nest, "\n") {
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if strings.Contains(line, `.Tr(`) {
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ret.WriteString(line + "\n")
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}
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}
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ret.WriteString(`
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}
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`)
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output := ret.String()
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return format.Source([]byte(output))
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formatted, err := format.Source([]byte(output))
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if err != nil {
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// Return unformatted so it can be fixed
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return []byte(output), nil
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}
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return formatted, nil
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}
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