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mirror of https://github.com/OpenDiablo2/OpenDiablo2 synced 2024-11-05 09:47:18 -05:00
OpenDiablo2/d2core/d2ui/label_button.go
gucio321 b77d793698
added label-button widget (#989)
Co-authored-by: M. Sz <mszeptuch@protonmail.com>
2021-01-06 21:45:05 -08:00

122 lines
2.6 KiB
Go

package d2ui
import (
"image/color"
"github.com/OpenDiablo2/OpenDiablo2/d2common/d2interface"
"github.com/OpenDiablo2/OpenDiablo2/d2common/d2util"
)
const (
white = 0xffffffff
)
// static checks to ensure LabelButton implemented Widget and ClickableWidget
var _ Widget = &LabelButton{}
var _ ClickableWidget = &LabelButton{}
// LabelButton represents LabelButton
type LabelButton struct {
*BaseWidget
stdColor color.Color
hoverColor color.Color
onClick func()
label *Label
*d2util.Logger
}
// NewLabelButton creates a label-button
func (ui *UIManager) NewLabelButton(font, palette string) *LabelButton {
base := NewBaseWidget(ui)
base.SetVisible(true)
result := &LabelButton{
BaseWidget: base,
stdColor: d2util.Color(white),
}
result.label = ui.NewLabel(font, palette)
result.label.Alignment = HorizontalAlignCenter
result.label.Color[0] = result.stdColor
ui.addWidget(result)
return result
}
// SetText sets button's text
func (b *LabelButton) SetText(text string) {
b.label.SetText(text)
b.width, b.height = b.label.GetSize()
}
// SetColors sets label-button colors (on normal and hovered state)
func (b *LabelButton) SetColors(normColor, hoverColor color.Color) {
b.stdColor = normColor
b.hoverColor = hoverColor
}
// GetSize returns label's size
func (b *LabelButton) GetSize() (x, y int) {
return b.label.GetSize()
}
// GetPosition returns real position (including offset for the alignment)
func (b *LabelButton) GetPosition() (x, y int) {
return b.x - b.label.getAlignOffset(b.width), b.y
}
// OnActivated defines the callback handler for the activate event
func (b *LabelButton) OnActivated(cb func()) {
b.onClick = cb
}
// Activate calls the on activated callback handler, if any
func (b *LabelButton) Activate() {
if b.onClick == nil {
return
}
b.onClick()
}
// SetEnabled sets the enabled state
func (b *LabelButton) SetEnabled(_ bool) {
// noop
}
// GetEnabled returns the enabled state
func (b *LabelButton) GetEnabled() bool {
return true
}
// SetPressed sets the pressed state of the button
func (b *LabelButton) SetPressed(_ bool) {
// noop
}
// GetPressed returns the pressed state of the button
func (b *LabelButton) GetPressed() bool {
return false
}
// Advance advances the label-button
func (b *LabelButton) Advance(_ float64) error {
return nil
}
// Render renders label-button
func (b *LabelButton) Render(target d2interface.Surface) {
target.PushTranslation(b.GetPosition())
defer target.Pop()
b.label.Render(target)
if b.isHovered() {
b.label.Color[0] = b.hoverColor
} else {
b.label.Color[0] = b.stdColor
}
}