Method Height

common/font.go:387–415

Height returns the height the Text generated from a FontAtlas. This implements the common.Drawable interface.

()

// Height returns the height the Text generated from a FontAtlas. This implements the common.Drawable interface.
func (t Text) Height() float32 {
	atlas, ok := atlasCache[*t.Font]
	if !ok {
		// Generate texture first
		atlas = t.Font.generateFontAtlas(200)
		atlasCache[*t.Font] = atlas
	}

	var currentY float32
	var totalY float32
	var tallest float32

	for _, char := range t.Text {
		// TODO: this might not work for all characters
		switch {
		case char == '\n':
			totalY += tallest
			tallest = float32(0)
			continue
		case char < 32: // all system stuff should be ignored
			continue
		}
		currentY = atlas.Height[char] + t.LineSpacing*atlas.Height[char]
		if currentY > tallest {
			tallest = currentY
		}
	}
	return totalY + tallest
}

// View returns 0, 0, 1, 1 because the Text is generated from a FontAtlas. This implements the common.Drawable interface.
func (t Text) View() (float32, float32, float32, float32) { return 0, 0, 1, 1 }