xiaoqidun/ofdgo
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feat(渲染能力): 完善径向渐变延伸与镜像渐变渲染，保持全矢量输出
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xiaoqidun committed 2026-09-09 13:03:52 +08:00
1 parent f0d204d0e9
commit f27c5b666e
5 files changed
+221 -31
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ofdgo_renderer_text.go
+9 -11
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@@ -76,24 +76,21 @@ func (r *Renderer) renderText(ctx *canvas.Context, obj TextObject, pageH float64
fillColor = colorWithAlpha(canvas.Black, obj.Alpha)
}
var fillPaint any = fillColor
var fillColorNode *FillColor
if dp != nil && dp.FillColor != nil {
fillColorNode = withFillAlpha(dp.FillColor, obj.Alpha)
fillColorNode := withFillAlpha(dp.FillColor, obj.Alpha)
fillColor = parseFillColor(fillColorNode)
fillPaint = parseFillPaint(fillColorNode, bx, by, pageH)
}
if obj.FillColor != nil {
fillColorNode = withFillAlpha(obj.FillColor, obj.Alpha)
fillColorNode := withFillAlpha(obj.FillColor, obj.Alpha)
fillColor = parseFillColor(fillColorNode)
fillPaint = parseFillPaint(fillColorNode, bx, by, pageH)
}
if fillPaint == nil {
fillPaint = fillColor
}
fillClip := clipPath
if fillColorNode != nil {
fillClip = intersectClipPath(fillClip, axialShdClip(ctx, fillPaint, fillColorNode.AxialShd))
}
fillPaint, shadingClip := resolveShdPaint(ctx, fillPaint)
fillClip := intersectClipPath(clipPath, shadingClip)
strokeStyle := newPathStyle(nil, defaultStroke, 0, obj.Alpha)
strokeClip := clipPath
if shouldStroke {
@@ -110,7 +107,8 @@ func (r *Renderer) renderText(ctx *canvas.Context, obj TextObject, pageH float64
strokeStyle.strokePaint = colorWithAlpha(canvas.Black, obj.Alpha)
}
strokeStyle.scale(ctm)
strokeClip = intersectClipPath(strokeClip, axialShdClip(ctx, strokeStyle.strokePaint, strokeStyle.strokeAxialShd))
strokeStyle.strokePaint, shadingClip = resolveShdPaint(ctx, strokeStyle.strokePaint)
strokeClip = intersectClipPath(strokeClip, shadingClip)
}
fontStyle := canvas.FontRegular
weight := obj.Weight
@@ -150,7 +148,7 @@ func (r *Renderer) renderText(ctx *canvas.Context, obj TextObject, pageH float64
face := ff.Face(sizePt, fillPaint, fontStyle, canvas.FontNormal)
glyphTransforms := r.textObjectGlyphTransforms(fontID, obj)
hasUnderline := strings.Contains(obj.Decoration, "Underline")
_, axialFill := fillPaint.(*canvas.LinearGradient)
_, shadedFill := fillPaint.(canvas.Gradient)
verticalAdvance := (obj.ReadDirection-obj.CharDirection)%180 != 0
advanceX, advanceY := 1.0, 0.0
switch obj.ReadDirection {
@@ -174,7 +172,7 @@ func (r *Renderer) renderText(ctx *canvas.Context, obj TextObject, pageH float64
}
dxs, dys := parseFloats(tc.DeltaX), parseFloats(tc.DeltaY)
xs, ys := parseFloats(tc.X), parseFloats(tc.Y)
drawAsPath := embeddedFont || textCodePositioned(tc, xs, ys) || fillClip != nil || axialFill || shouldStroke
drawAsPath := embeddedFont || textCodePositioned(tc, xs, ys) || fillClip != nil || shadedFill || shouldStroke
cx, cy := 0.0, 0.0
previousAdvance := 0.0
if len(xs) > 0 {
@@ -265,7 +263,7 @@ func (r *Renderer) renderText(ctx *canvas.Context, obj TextObject, pageH float64
}
if fillPaint != nil {
ctx.SetFill(fillPaint)
if fillClip != nil || axialFill {
if fillClip != nil || shadedFill {
scaleX := hScale
if advanceLimit > 0 && glyphWidth*scaleX > advanceLimit {
scaleX = advanceLimit / glyphWidth