76 lines
2.6 KiB
Go
76 lines
2.6 KiB
Go
package raygui
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import rl "github.com/gen2brain/raylib-go/raylib"
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// SliderBar - Slider Bar element, returns selected value
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func SliderBar(bounds rl.Rectangle, value, minValue, maxValue float32) float32 {
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b := bounds.ToInt32()
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state := Normal
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mousePoint := rl.GetMousePosition()
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fixedValue := float32(0)
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fixedMinValue := float32(0)
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fixedValue = value - minValue
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maxValue = maxValue - minValue
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fixedMinValue = 0
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// Update control
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if fixedValue <= fixedMinValue {
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fixedValue = fixedMinValue
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} else if fixedValue >= maxValue {
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fixedValue = maxValue
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}
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sliderBar := rl.RectangleInt32{}
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sliderBar.X = b.X + int32(style[SliderBorderWidth])
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sliderBar.Y = b.Y + int32(style[SliderBorderWidth])
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sliderBar.Width = int32((fixedValue * (float32(b.Width) - 2*float32(style[SliderBorderWidth]))) / (maxValue - fixedMinValue))
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sliderBar.Height = b.Height - 2*int32(style[SliderBorderWidth])
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if rl.CheckCollisionPointRec(mousePoint, bounds) {
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state = Focused
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if rl.IsMouseButtonDown(rl.MouseLeftButton) {
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state = Pressed
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sliderBar.Width = (int32(mousePoint.X) - b.X - int32(style[SliderBorderWidth]))
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if int32(mousePoint.X) <= (b.X + int32(style[SliderBorderWidth])) {
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sliderBar.Width = 0
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} else if int32(mousePoint.X) >= (b.X + b.Width - int32(style[SliderBorderWidth])) {
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sliderBar.Width = b.Width - 2*int32(style[SliderBorderWidth])
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}
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}
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} else {
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state = Normal
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}
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fixedValue = (float32(sliderBar.Width) * (maxValue - fixedMinValue)) / (float32(b.Width) - 2*float32(style[SliderBorderWidth]))
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// Draw control
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rl.DrawRectangle(b.X, b.Y, b.Width, b.Height, rl.GetColor(uint(style[SliderbarBorderColor])))
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rl.DrawRectangle(b.X+int32(style[SliderBorderWidth]), b.Y+int32(style[SliderBorderWidth]), b.Width-(2*int32(style[SliderBorderWidth])), b.Height-(2*int32(style[SliderBorderWidth])), rl.GetColor(uint(style[SliderbarInsideColor])))
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switch state {
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case Normal:
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rl.DrawRectangle(sliderBar.X, sliderBar.Y, sliderBar.Width, sliderBar.Height, rl.GetColor(uint(style[SliderbarDefaultColor])))
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break
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case Focused:
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rl.DrawRectangle(sliderBar.X, sliderBar.Y, sliderBar.Width, sliderBar.Height, rl.GetColor(uint(style[SliderbarHoverColor])))
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break
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case Pressed:
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rl.DrawRectangle(sliderBar.X, sliderBar.Y, sliderBar.Width, sliderBar.Height, rl.GetColor(uint(style[SliderbarActiveColor])))
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break
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default:
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break
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}
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if minValue < 0 && maxValue > 0 {
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rl.DrawRectangle((b.X+int32(style[SliderBorderWidth]))-int32(minValue*(float32(b.Width-(int32(style[SliderBorderWidth])*2))/maxValue)), sliderBar.Y, 1, sliderBar.Height, rl.GetColor(uint(style[SliderbarZeroLineColor])))
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}
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return fixedValue + minValue
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}
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