131 lines
2.4 KiB
Go
131 lines
2.4 KiB
Go
package d2gui
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import (
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"image/color"
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"time"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2fileformats/d2font"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2interface"
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)
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// Constants defining the main shades of basic colors
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// found in the game
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const (
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ColorWhite = 0xffffffff
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ColorRed = 0xdb3f3dff
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ColorGreen = 0x00d000ff
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ColorBlue = 0x5450d1ff
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ColorBrown = 0xa1925dff
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ColorGrey = 0x555555ff
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)
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// Label is renderable text
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type Label struct {
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widgetBase
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renderer d2interface.Renderer
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text string
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font *d2font.Font
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surface d2interface.Surface
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color color.RGBA
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hoverColor color.RGBA
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isHovered bool
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isBlinking bool
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isDisplayed bool
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blinkTimer time.Time
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}
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func createLabel(renderer d2interface.Renderer, text string, font *d2font.Font, col color.RGBA) (*Label, error) {
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label := &Label{
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font: font,
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renderer: renderer,
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color: col,
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hoverColor: col,
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}
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err := label.setText(text)
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if err != nil {
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return nil, err
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}
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label.SetVisible(true)
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return label, nil
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}
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// SetHoverColor will set the value of hoverColor
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func (l *Label) SetHoverColor(col color.RGBA) {
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l.hoverColor = col
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}
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// SetIsBlinking will set the isBlinking value
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func (l *Label) SetIsBlinking(isBlinking bool) {
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l.isBlinking = isBlinking
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}
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// SetIsHovered will set the isHovered value
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func (l *Label) SetIsHovered(isHovered bool) error {
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l.isHovered = isHovered
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return l.setText(l.text)
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}
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func (l *Label) render(target d2interface.Surface) {
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if l.isBlinking && time.Since(l.blinkTimer) >= 200*time.Millisecond {
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l.isDisplayed = !l.isDisplayed
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l.blinkTimer = time.Now()
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}
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if l.isBlinking && !l.isDisplayed {
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return
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}
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target.Render(l.surface)
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}
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func (l *Label) getSize() (width, height int) {
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return l.surface.GetSize()
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}
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// GetText returns the label text
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func (l *Label) GetText() string {
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return l.text
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}
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// SetColor sets the label text
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func (l *Label) SetColor(col color.RGBA) error {
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l.color = col
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return l.setText(l.text)
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}
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// SetText sets the label text
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func (l *Label) SetText(text string) error {
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if text == l.text {
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return nil
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}
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return l.setText(text)
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}
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func (l *Label) setText(text string) error {
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width, height := l.font.GetTextMetrics(text)
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surface := l.renderer.NewSurface(width, height)
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col := l.color
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if l.isHovered {
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col = l.hoverColor
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}
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l.font.SetColor(col)
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if err := l.font.RenderText(text, surface); err != nil {
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return err
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}
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l.surface = surface
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l.text = text
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return nil
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}
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