mirror of https://github.com/anoshenko/rui.git
130 lines
3.5 KiB
Go
130 lines
3.5 KiB
Go
package main
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import (
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"fmt"
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"strconv"
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"strings"
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"github.com/anoshenko/rui"
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)
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const pointerEventsDemoText = `
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GridLayout {
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width = 100%, height = 100%, cell-height = "1fr, auto",
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content = [
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GridLayout {
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padding = 12px,
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content = [
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GridLayout {
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id = pointerEventsTest, cell-horizontal-align = center, cell-vertical-align = center,
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border = _{ style = solid, width = 1px, color = gray},
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content = [
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TextView {
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id = pointerEventsText, text = "Test box",
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}
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]
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}
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],
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},
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Resizable {
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row = 1, side = top, background-color = lightgrey, height = 200px,
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content = EditView {
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id = pointerEventsLog, type = multiline, read-only = true, wrap = true,
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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 createPointerEventsDemo(session rui.Session) rui.View {
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view := rui.CreateViewFromText(session, pointerEventsDemoText)
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if view == nil {
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return nil
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}
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addToLog := func(tag string, event rui.PointerEvent) {
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var buffer strings.Builder
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appendBool := func(name string, value bool) {
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buffer.WriteString(`, `)
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buffer.WriteString(name)
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if value {
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buffer.WriteString(` = true`)
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} else {
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buffer.WriteString(` = false`)
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}
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}
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appendInt := func(name string, value int) {
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buffer.WriteString(`, `)
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buffer.WriteString(name)
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buffer.WriteString(` = `)
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buffer.WriteString(strconv.Itoa(value))
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}
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appendFloat := func(name string, value float64) {
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buffer.WriteString(fmt.Sprintf(`, %s = %g`, name, value))
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}
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appendPoint := func(name string, x, y float64) {
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buffer.WriteString(fmt.Sprintf(`, %s = (%g:%g)`, name, x, y))
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}
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buffer.WriteString(tag)
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buffer.WriteString(`: TimeStamp = `)
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buffer.WriteString(strconv.FormatUint(event.TimeStamp, 10))
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appendInt("Button", event.Button)
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appendInt("Buttons", event.Buttons)
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appendPoint("(X:Y)", event.X, event.Y)
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appendPoint("Client (X:Y)", event.ClientX, event.ClientY)
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appendPoint("Screen (X:Y)", event.ScreenX, event.ScreenY)
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appendFloat("Width", event.Width)
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appendFloat("Height", event.Height)
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appendFloat("Pressure", event.Pressure)
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appendFloat("TangentialPressure", event.TangentialPressure)
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appendFloat("TiltX", event.TiltX)
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appendFloat("TiltY", event.TiltY)
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appendFloat("Twist", event.Twist)
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buffer.WriteString(`, PointerType = `)
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buffer.WriteString(event.PointerType)
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appendBool("IsPrimary", event.IsPrimary)
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appendBool("CtrlKey", event.CtrlKey)
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appendBool("ShiftKey", event.ShiftKey)
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appendBool("AltKey", event.AltKey)
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appendBool("MetaKey", event.MetaKey)
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buffer.WriteString(";\n\n")
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rui.AppendEditText(view, "pointerEventsLog", buffer.String())
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rui.ScrollViewToEnd(view, "pointerEventsLog")
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}
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rui.SetParams(view, "pointerEventsTest", rui.Params{
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rui.PointerDown: func(v rui.View, event rui.PointerEvent) {
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addToLog("pointer-down", event)
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},
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rui.PointerUp: func(v rui.View, event rui.PointerEvent) {
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addToLog("pointer-up", event)
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},
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rui.PointerOut: func(v rui.View, event rui.PointerEvent) {
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addToLog("pointer-out", event)
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rui.Set(view, "pointerEventsText", rui.Text, "Pointer out")
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},
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rui.PointerOver: func(v rui.View, event rui.PointerEvent) {
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addToLog("pointer-over", event)
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},
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rui.PointerCancel: func(v rui.View, event rui.PointerEvent) {
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addToLog("pointer-cancel", event)
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},
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rui.PointerMove: func(v rui.View, event rui.PointerEvent) {
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rui.Set(view, "pointerEventsText", rui.Text,
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fmt.Sprintf("(X:Y): (%g : %g)<br>Client (X:Y): (%g : %g)<br>Screen (X:Y): (%g : %g)",
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event.X, event.Y, event.ClientX, event.ClientY, event.ScreenX, event.ScreenY))
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},
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})
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return view
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}
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