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go-opengl-pixel
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Add Text.AlignedTo()

This commit is contained in:
Nathanaël 2020-08-11 22:16:16 +02:00
parent 7a106fa572
commit a8b7779fbe
1 changed files with 11 additions and 0 deletions
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11
text/text.go
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@ -101,6 +101,7 @@ type Text struct {
trans pixel.TrianglesData trans pixel.TrianglesData
transD pixel.Drawer transD pixel.Drawer
dirty bool dirty bool
anchor pixel.Anchor
} }
// New creates a new Text capable of drawing runes contained in the provided Atlas. Orig and Dot // New creates a new Text capable of drawing runes contained in the provided Atlas. Orig and Dot
@ -182,6 +183,12 @@ func (txt *Text) BoundsOf(s string) pixel.Rect {
return bounds return bounds
} }
// AlignedTo returns the text moved by the given anchor.
func (txt *Text) AlignedTo(anchor pixel.Anchor) *Text {
txt.anchor = anchor
return txt
}
// Clear removes all written text from the Text. The Dot field is reset to Orig. // Clear removes all written text from the Text. The Dot field is reset to Orig.
func (txt *Text) Clear() { func (txt *Text) Clear() {
txt.prevR = -1 txt.prevR = -1
@ -244,6 +251,10 @@ func (txt *Text) DrawColorMask(t pixel.Target, matrix pixel.Matrix, mask color.C
txt.mat = matrix txt.mat = matrix
txt.dirty = true txt.dirty = true
} }
offset := txt.Bounds().AnchorPos(txt.anchor)
txt.mat = pixel.IM.Moved(offset).Chained(txt.mat)
if mask == nil { if mask == nil {
mask = pixel.Alpha(1) mask = pixel.Alpha(1)
} }