277 lines
8.7 KiB
Go
277 lines
8.7 KiB
Go
package main
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import (
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"fmt"
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"os"
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"strconv"
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"strings"
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g "github.com/AllenDang/giu"
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)
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const (
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MasterWidth int = 376
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Version string = "0.1.1"
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FullStack int = iota
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TopThree
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TopOfStack
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Dsc
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Asc
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)
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type Input struct {
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buf strings.Builder
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decimal bool
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negative bool
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}
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func (i *Input) String() string {
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return i.buf.String()
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}
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func (i *Input) Append(value rune) {
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switch value {
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case '.':
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if i.decimal {
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return
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}
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if i.buf.Len() == 0 {
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i.buf.WriteRune('0')
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}
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i.decimal = true
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i.buf.WriteRune(value)
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case '-':
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if i.buf.Len() > 0 {
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return
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}
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i.negative = true
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i.buf.WriteRune(value)
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default:
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i.buf.WriteRune(value)
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}
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inputDisplay = i.String()
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SetComboOut()
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}
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func (i *Input) Store() {
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if i.buf.Len() == 0 {
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return
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}
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if i.buf.Len() == 1 && (i.negative || i.decimal) {
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i.Reset()
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return
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}
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num, err := strconv.ParseFloat(i.buf.String(), 64)
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if err != nil {
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panic("Bad input")
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}
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s.Push(num)
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i.Reset()
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inputDisplay = ""
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}
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func (i *Input) Reset() {
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i.buf.Reset()
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i.decimal = false
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i.negative = false
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}
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func (i *Input) Delete() {
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if i.buf.Len() == 0 {
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return
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}
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val := i.buf.String()
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popped := val[len(val)-1]
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i.buf.Reset()
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i.buf.WriteString(val[:len(val)-1])
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if popped == '.' {
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i.decimal = false
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} else if popped == '-' {
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i.negative = false
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}
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inputDisplay = i.String()
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SetComboOut()
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}
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var (
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wnd *g.MasterWindow
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inputBuffer *Input = &Input{}
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s *stack = &stack{-1, [100]float64{}}
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stackStyle int = FullStack
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inputDisplay string = inputBuffer.String()
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outputDisplay string = s.String()
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comboDisplay string = inputBuffer.String()
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Display *g.InputTextWidget = g.InputText("", &inputDisplay)
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Output *g.InputTextMultilineWidget = g.InputTextMultiline("", &outputDisplay)
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ComboView *g.InputTextWidget = g.InputText("", &comboDisplay)
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ShowStack bool = true
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stackSort int = Dsc
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stackLabel *g.LabelWidget = g.Label("Stack Output\n[d]{TOS ...}")
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)
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func callStackWord(f func()) {
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inputBuffer.Store()
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f()
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outputDisplay = s.String()
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SetComboOut()
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}
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func SetComboOut() {
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if inputBuffer.buf.Len() > 0 {
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comboDisplay = inputBuffer.String()
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} else {
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comboDisplay = strconv.FormatFloat(s.Peek(), 'f', -1, 64)
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}
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}
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func SetStackLabelWithSort() {
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sort := "TOS ..."
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if stackSort == Asc {
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sort = "... TOS"
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}
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stackLabel = g.Label(fmt.Sprintf("Stack Output\n[d]{%s}", sort))
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}
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func loop() {
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g.SingleWindowWithMenuBar("gnums - " + Version).Layout(
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g.MenuBar().Layout(
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g.Menu("File").Layout(
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g.MenuItem("Exit").OnClick(Exit),
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),
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g.Menu("Edit").Layout(
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g.MenuItem("Copy TOS"),
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g.MenuItem("Copy Stack"),
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g.MenuItem("Clear Stack"),
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),
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g.Menu("Settings").Layout(
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g.Checkbox("Show Stack Window", &ShowStack).OnChange(func(){
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width := MasterWidth
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if ShowStack {
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width = MasterWidth + MasterWidth / 2
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}
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wnd.SetSize(width,400)}),
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g.Menu("Output Style").Layout(
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g.RadioButton("Full Stack", stackStyle == FullStack).OnChange(func(){stackStyle = FullStack; outputDisplay = s.String()}),
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g.RadioButton("Top Three", stackStyle == TopThree).OnChange(func(){stackStyle = TopThree; outputDisplay = s.String()}),
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g.RadioButton("Top Of Stack", stackStyle == TopOfStack).OnChange(func(){stackStyle = TopOfStack; outputDisplay = s.String()}),
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),
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g.Menu("Stack Sort").Layout(
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g.RadioButton("TOS ...", stackSort == Dsc).OnChange(func(){stackSort = Dsc; SetStackLabelWithSort()}),
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g.RadioButton("... TOS", stackSort == Asc).OnChange(func(){stackSort = Asc; SetStackLabelWithSort()}),
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),
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),
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),
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g.Row(
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g.Label("gnums v" + Version),
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),
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g.Dummy(0, 5),
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ComboView.Size(-1).Flags(1 << 14),
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g.Row(
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g.Condition(ShowStack, g.Layout{
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g.Row(
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g.Child("Left").Layout(
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stackLabel,
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g.Tooltip("Stack display is\nnewest on top"),
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Output.Size(-1, -1).Flags(1 << 14),
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).Size(
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float32(MasterWidth/2), -1,
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),
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g.Child("Section").Layout(
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g.Row(
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g.Button("Clear").Size(50,50).OnClick(func(){callStackWord(s.Clear)}),
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g.Button("Delete").Size(50,50).OnClick(func(){inputBuffer.Delete()}),
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g.Button("Round").Size(50,50).OnClick(func(){callStackWord(s.Round)}),
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g.Button("^").Size(50,50).OnClick(func(){callStackWord(s.Pow)}),
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g.Button("÷").Size(50,50).OnClick(func(){callStackWord(s.Div)}),
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g.Button("Sqrt").Size(50,50).OnClick(func(){callStackWord(s.Sqt)}),
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),
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g.Row(
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g.Button("Over").Size(50,50).OnClick(func(){callStackWord(s.Ovr)}),
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g.Button("7").Size(50,50).OnClick(func(){inputBuffer.Append('7')}),
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g.Button("8").Size(50,50).OnClick(func(){inputBuffer.Append('8')}),
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g.Button("9").Size(50,50).OnClick(func(){inputBuffer.Append('9')}),
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g.Button("×").Size(50,50).OnClick(func(){callStackWord(s.Mul)}),
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g.Button("Floor").Size(50,50).OnClick(func(){callStackWord(s.Floor)}),
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),
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g.Row(
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g.Button("Swap").Size(50,50).OnClick(func(){callStackWord(s.Swp)}),
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g.Button("4").Size(50,50).OnClick(func(){inputBuffer.Append('4')}),
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g.Button("5").Size(50,50).OnClick(func(){inputBuffer.Append('5')}),
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g.Button("6").Size(50,50).OnClick(func(){inputBuffer.Append('6')}),
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g.Button("-").Size(50,50).OnClick(func(){callStackWord(s.Sub)}),
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g.Button("Ceil").Size(50,50).OnClick(func(){callStackWord(s.Ceil)}),
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),
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g.Row(
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g.Button("Dup").Size(50,50).OnClick(func(){callStackWord(s.Dup)}),
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g.Button("1").Size(50,50).OnClick(func(){inputBuffer.Append('1')}),
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g.Button("2").Size(50,50).OnClick(func(){inputBuffer.Append('2')}),
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g.Button("3").Size(50,50).OnClick(func(){inputBuffer.Append('3')}),
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g.Button("+").Size(50,50).OnClick(func(){callStackWord(s.Add)}),
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g.Button("+/-").Size(50,50).OnClick(func(){callStackWord(s.Inv)}),
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),
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g.Row(
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g.Button("Drop").Size(50,50).OnClick(func(){callStackWord(s.Drp)}),
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g.Button(".").Size(50,50).OnClick(func(){inputBuffer.Append('.')}),
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g.Button("0").Size(50,50).OnClick(func(){inputBuffer.Append('0')}),
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g.Button("Enter").Size(165,50).OnClick(func(){inputBuffer.Store(); outputDisplay = s.String()}),
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),
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),
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),
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}, g.Layout{
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g.Child("Button Section").Layout(
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g.Row(
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g.Button("Clear").Size(50,50).OnClick(func(){callStackWord(s.Clear)}),
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g.Button("Delete").Size(50,50).OnClick(func(){inputBuffer.Delete()}),
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g.Button("Round").Size(50,50).OnClick(func(){callStackWord(s.Round)}),
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g.Button("^").Size(50,50).OnClick(func(){callStackWord(s.Pow)}),
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g.Button("÷").Size(50,50).OnClick(func(){callStackWord(s.Div)}),
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g.Button("Sqrt").Size(50,50).OnClick(func(){callStackWord(s.Sqt)}),
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),
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g.Row(
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g.Button("Over").Size(50,50).OnClick(func(){callStackWord(s.Ovr)}),
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g.Button("7").Size(50,50).OnClick(func(){inputBuffer.Append('7')}),
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g.Button("8").Size(50,50).OnClick(func(){inputBuffer.Append('8')}),
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g.Button("9").Size(50,50).OnClick(func(){inputBuffer.Append('9')}),
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g.Button("×").Size(50,50).OnClick(func(){callStackWord(s.Mul)}),
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g.Button("Floor").Size(50,50).OnClick(func(){callStackWord(s.Floor)}),
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),
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g.Row(
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g.Button("Swap").Size(50,50).OnClick(func(){callStackWord(s.Swp)}),
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g.Button("4").Size(50,50).OnClick(func(){inputBuffer.Append('4')}),
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g.Button("5").Size(50,50).OnClick(func(){inputBuffer.Append('5')}),
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g.Button("6").Size(50,50).OnClick(func(){inputBuffer.Append('6')}),
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g.Button("-").Size(50,50).OnClick(func(){callStackWord(s.Sub)}),
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g.Button("Ceil").Size(50,50).OnClick(func(){callStackWord(s.Ceil)}),
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),
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g.Row(
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g.Button("Dup").Size(50,50).OnClick(func(){callStackWord(s.Dup)}),
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g.Button("1").Size(50,50).OnClick(func(){inputBuffer.Append('1')}),
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g.Button("2").Size(50,50).OnClick(func(){inputBuffer.Append('2')}),
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g.Button("3").Size(50,50).OnClick(func(){inputBuffer.Append('3')}),
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g.Button("+").Size(50,50).OnClick(func(){callStackWord(s.Add)}),
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g.Button("+/-").Size(50,50).OnClick(func(){callStackWord(s.Inv)}),
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),
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g.Row(
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g.Button("Drop").Size(50,50).OnClick(func(){callStackWord(s.Drp)}),
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g.Button(".").Size(50,50).OnClick(func(){inputBuffer.Append('.')}),
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g.Button("0").Size(50,50).OnClick(func(){inputBuffer.Append('0')}),
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g.Button("Enter").Size(165,50).OnClick(func(){inputBuffer.Store(); outputDisplay = s.String()}),
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),
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),
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}),
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),
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)
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}
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func Exit() {
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os.Exit(0)
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}
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func main() {
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wnd = g.NewMasterWindow("gnums", MasterWidth+MasterWidth/2, 390, g.MasterWindowFlagsNotResizable, nil)
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wnd.Run(loop)
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}
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