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feat(文件拆分): 拆分PDF格式适配模块
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xiaoqidun committed 2026-10-14 09:02:24 +08:00
1 parent bec13d523f
commit b3c4bbc844
45 files changed
+1885 -1453
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ofdgo_pdf_transfer.go
+9 -6
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@@ -14,7 +14,10 @@
package ofdgo
import "github.com/xiaoqidun/pdfgo"
import (
codecpdf "github.com/xiaoqidun/ofdgo/internal/codec/pdf"
"github.com/xiaoqidun/pdfgo"
)
// 图案标记保留设备四色通道及非零对象形状
const (
@@ -99,7 +102,7 @@ func (c *pdfCompositor) selectTransfer(node pdfCompositeNode, outline bool) (*pd
if outline {
paint = style.Stroke
}
if c.transferBlocked || paint.Alpha != 1 || style.SoftMask != nil || !pdfNormalBlend(style.BlendMode) {
if c.transferBlocked || paint.Alpha != 1 || style.SoftMask != nil || !codecpdf.NormalBlend(style.BlendMode) {
return nil, nil
}
transfer, err := c.importer.resolveTransfer(style, c.transferModel)
@@ -108,7 +111,7 @@ func (c *pdfCompositor) selectTransfer(node pdfCompositeNode, outline bool) (*pd
}
if pattern := paint.Shading; pattern != nil && (node.image == nil || node.image.Image.ImageMask) {
inner := pattern.Style
if inner.Fill.Alpha != 1 || inner.SoftMask != nil || !pdfNormalBlend(inner.BlendMode) {
if inner.Fill.Alpha != 1 || inner.SoftMask != nil || !codecpdf.NormalBlend(inner.BlendMode) {
return nil, nil
}
}
@@ -171,7 +174,7 @@ func (p *pdfCompositePattern) opaqueTransfer() (bool, error) {
// 返回: bool 是否不透明, error 图案或图片遮罩引用错误
func (p *pdfImporter) transferOpaque(node pdfCompositeNode) (bool, error) {
if group := node.group; group != nil {
if group.Alpha != 1 || group.SoftMask != nil || !pdfNormalBlend(group.BlendMode) {
if group.Alpha != 1 || group.SoftMask != nil || !codecpdf.NormalBlend(group.BlendMode) {
return false, nil
}
for _, child := range node.children {
@@ -182,7 +185,7 @@ func (p *pdfImporter) transferOpaque(node pdfCompositeNode) (bool, error) {
return true, nil
}
style, fill, stroke := node.style()
if style.SoftMask != nil || !pdfNormalBlend(style.BlendMode) || fill && style.Fill.Alpha != 1 || stroke && style.Stroke.Alpha != 1 {
if style.SoftMask != nil || !codecpdf.NormalBlend(style.BlendMode) || fill && style.Fill.Alpha != 1 || stroke && style.Stroke.Alpha != 1 {
return false, nil
}
if node.image != nil {
@@ -197,7 +200,7 @@ func (p *pdfImporter) transferOpaque(node pdfCompositeNode) (bool, error) {
for i, paint := range [2]pdfgo.Paint{style.Fill, style.Stroke} {
if pattern := paint.Shading; pattern != nil && (i == 0 && fill || i == 1 && stroke) {
inner := pattern.Style
if inner.Fill.Alpha != 1 || inner.SoftMask != nil || !pdfNormalBlend(inner.BlendMode) {
if inner.Fill.Alpha != 1 || inner.SoftMask != nil || !codecpdf.NormalBlend(inner.BlendMode) {
return false, nil
}
}