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Wrapped text drawing

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bloeys
2022-07-15 21:09:32 +04:00
parent cdcfe4c13d
commit 1847289fe5
2 changed files with 13 additions and 7 deletions
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13
glyphs/glyphs.go
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@ -90,11 +90,18 @@ func (gr *GlyphRend) DrawTextOpenGLAbs(text []rune, screenPos *gglm.Vec3, color
run := &runs[runIndex]
prevRune := invalidRune
screenWidthF32 := float32(gr.ScreenWidth)
if run.IsLtr {
for i := 0; i < len(run.Runes); i++ {
gr.drawRune(run, i, prevRune, screenPos, pos, color, lineHeightF32, &bufIndex)
prevRune = run.Runes[i]
//Wrap
if pos.X()+gr.Atlas.SpaceAdvance >= screenWidthF32 {
screenPos.SetY(screenPos.Y() - lineHeightF32)
*pos = *screenPos.Clone()
}
}
} else {
@ -102,6 +109,12 @@ func (gr *GlyphRend) DrawTextOpenGLAbs(text []rune, screenPos *gglm.Vec3, color
for i := len(run.Runes) - 1; i >= 0; i-- {
gr.drawRune(run, i, prevRune, screenPos, pos, color, lineHeightF32, &bufIndex)
prevRune = run.Runes[i]
//Wrap
if pos.X()+gr.Atlas.SpaceAdvance >= screenWidthF32 {
screenPos.SetY(screenPos.Y() - lineHeightF32)
*pos = *screenPos.Clone()
}
}
}

7
main.go
View File

@ -562,13 +562,6 @@ func (p *program) DrawCursor() {
}
p.rend.Draw(p.gridMesh, gglm.NewTrMatId().Translate(pos).Scale(gglm.NewVec3(0.1*p.GlyphRend.Atlas.SpaceAdvance, p.GlyphRend.Atlas.LineHeight, 1)), p.gridMat)
// @Debug draw line indicating last char in line
// pos = p.lastCmdCharPos.Clone()
// p.ScreenPosToGridPos(pos)
// p.gridMat.SetUnifVec4("color", gglm.NewVec4(1, 0, 0, 1))
// p.rend.Draw(p.gridMesh, gglm.NewTrMatId().Translate(pos).Scale(gglm.NewVec3(0.1*p.GlyphRend.Atlas.SpaceAdvance, p.GlyphRend.Atlas.LineHeight, 1)), p.gridMat)
// p.gridMat.SetUnifVec4("color", gglm.NewVec4(1, 1, 1, 1))
}
func (p *program) ScreenPosToGridPos(screenPos *gglm.Vec3) {