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tomo-old/popups/dialog.go

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package popups
import "image"
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import "git.tebibyte.media/sashakoshka/tomo"
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import "git.tebibyte.media/sashakoshka/tomo/elements"
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// DialogKind defines the semantic role of a dialog window.
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type DialogKind int
const (
DialogKindInfo DialogKind = iota
DialogKindQuestion
DialogKindWarning
DialogKindError
)
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// TODO: add ability to have an icon for buttons
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// Button represents a dialog response button.
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type Button struct {
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// Name contains the text to display on the button.
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Name string
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// OnPress specifies a callback to run when the button is pressed. If
// this callback is nil, the button will appear disabled.
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OnPress func ()
}
// NewDialog creates a new modal dialog window and returns it. If parent is nil,
// the dialog will just be a normal window
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func NewDialog (
kind DialogKind,
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parent tomo.Window,
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title, message string,
buttons ...Button,
) (
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window tomo.Window,
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) {
if parent == nil {
window, _ = tomo.NewWindow(image.Rectangle { })
} else {
window, _ = parent.NewModal(image.Rectangle { })
}
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window.SetTitle(title)
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box := elements.NewVBox(elements.SpaceBoth)
messageRow := elements.NewHBox(elements.SpaceMargin)
controlRow := elements.NewHBox(elements.SpaceMargin)
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iconId := tomo.IconInformation
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switch kind {
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case DialogKindInfo: iconId = tomo.IconInformation
case DialogKindQuestion: iconId = tomo.IconQuestion
case DialogKindWarning: iconId = tomo.IconWarning
case DialogKindError: iconId = tomo.IconError
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}
messageRow.Adopt(elements.NewIcon(iconId, tomo.IconSizeLarge))
messageRow.AdoptExpand(elements.NewLabel(message))
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controlRow.AdoptExpand(elements.NewSpacer())
box.AdoptExpand(messageRow)
box.Adopt(controlRow)
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window.Adopt(box)
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if len(buttons) == 0 {
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button := elements.NewButton("OK")
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button.SetIcon(tomo.IconYes)
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button.OnClick(window.Close)
controlRow.Adopt(button)
button.Focus()
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} else {
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var button *elements.Button
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for _, buttonDescriptor := range buttons {
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button = elements.NewButton(buttonDescriptor.Name)
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button.SetEnabled(buttonDescriptor.OnPress != nil)
button.OnClick (func () {
buttonDescriptor.OnPress()
window.Close()
})
controlRow.Adopt(button)
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}
button.Focus()
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}
window.Show()
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return
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}