Nick Thomas
971b3178d6
This commit implements loading and saving options from/to config, and enough UI toolkit magic to allow changes to boolean options to be persisted. We now respect the "play movies" setting and take screen resolution from the config file.
106 lines
2.2 KiB
Go
106 lines
2.2 KiB
Go
package ui
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import (
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"image"
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"github.com/hajimehoshi/ebiten"
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"code.ur.gs/lupine/ordoor/internal/assetstore"
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"code.ur.gs/lupine/ordoor/internal/menus"
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)
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// Widget represents an interactive area of the screen. Backgrounds and other
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// non-interactive areas are not widgets.
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type Widget struct {
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// Position on the screen in original (i.e., unscaled) coordinates
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Bounds image.Rectangle
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Tooltip string
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Value string // #dealwithit for bools and ints and so on :p
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OnHoverEnter func()
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OnHoverLeave func()
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// Mouse up can happen without a click taking place if, for instance, the
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// mouse cursor leaves the bounds while still pressed.
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OnMouseDown func()
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OnMouseClick func()
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OnMouseUp func()
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disabled bool
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disabledImage *ebiten.Image
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// These are expected to have the same dimensions as the Bounds
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hoverAnimation []*ebiten.Image
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hoverState bool
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// FIXME: We assume right mouse button isn't needed here
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// TODO: down, up, and click hooks.
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mouseButtonDownImage *ebiten.Image
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mouseButtonState bool
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path []int
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record *menus.Record
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sprite *assetstore.Sprite
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valueToImage func() *ebiten.Image
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}
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func (w *Widget) Disable() {
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w.hovering(false)
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w.mouseButton(false)
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w.disabled = true
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}
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func (w *Widget) hovering(value bool) {
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if w.OnHoverEnter != nil && !w.hoverState && value {
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w.OnHoverEnter()
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}
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if w.OnHoverLeave != nil && w.hoverState && !value {
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w.OnHoverLeave()
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}
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w.hoverState = value
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return
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}
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func (w *Widget) mouseButton(value bool) {
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if w.OnMouseDown != nil && !w.mouseButtonState && value {
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w.OnMouseDown()
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}
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if w.mouseButtonState && !value {
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if w.OnMouseClick != nil && w.hoverState {
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w.OnMouseClick()
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}
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if w.OnMouseUp != nil {
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w.OnMouseUp()
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}
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}
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w.mouseButtonState = value
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}
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func (w *Widget) Image(aniStep int) (*ebiten.Image, error) {
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if w.disabled {
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return w.disabledImage, nil
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}
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if w.mouseButtonDownImage != nil && w.hoverState && w.mouseButtonState {
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return w.mouseButtonDownImage, nil
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}
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if w.hoverState && len(w.hoverAnimation) > 0 {
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return w.hoverAnimation[(aniStep)%len(w.hoverAnimation)], nil
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}
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if w.valueToImage != nil {
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return w.valueToImage(), nil
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}
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return w.sprite.Image, nil
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}
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