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package ui
import rl "github.com/gen2brain/raylib-go/raylib"
var defaultLabelPadding float32 = 5
var defaultLabelRoundness float32 = 0.2
// If the text formation formula is applied without it the text is
// overlowing on the right due to rounding errors
const overflowMultiplyer float32 = 1.1
var defaultLabelStyle = &Style{
BacgroundColor: &rl.LightGray,
FontColor: &rl.DarkGray,
Padding: &defaultLabelPadding,
Roundness: &defaultLabelRoundness ,
}
type Label struct {
WidthWeight float32
Text string
Style Style
}
func (base *Label) Init(*Menu) {
base.Style.FillMissing(defaultLabelStyle)
if base.WidthWeight == 0 {
base.WidthWeight = 1
}
}
func (base *Label) Destroy() {
}
func (base *Label) Draw(position *rl.Rectangle) {
// rl.TraceLog(rl.LogInfo, "Drawn at %v/%v/%v/%v", position.X, position.Y, position.Width, position.Height)
rl.DrawRectangleRounded(*position,
*base.Style.Roundness,
0, // Assume the segments param is always 0 - it doesn't really matter without a border
*base.Style.BacgroundColor)
rl.DrawText(base.Text,
int32(position.X+*base.Style.Padding),
int32(position.Y+*base.Style.Padding),
base.getTextHeight(position),
*base.Style.FontColor)
}
func (base *Label) GetOccupationWeight() float32 {
return base.WidthWeight
}
// Returns the size of the text that will not overflow in the side
func (base *Label) getTextHeight(position *rl.Rectangle) int32 {
var width = position.Width - 2 * *base.Style.Padding
var outp = position.Height - 2 * *base.Style.Padding
var maxWidthSize = rl.MeasureText(base.Text, int32(outp))
if maxWidthSize > int32(width) {
outp /= (float32(maxWidthSize) / width) * overflowMultiplyer
}
return int32(outp)
}
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