add: anchor drawing & some attrs

apidrawing.go

@@ -15,9 +15,10 @@ func (p *Paragraph) AddInlineDrawing(pic []byte) (*Run, error) {
 	if err != nil {
 		return nil, err
 	}
-	id := strconv.Itoa(int(atomic.AddUintptr(&p.file.imageId, 1)))
+	idn := int(atomic.AddUintptr(&p.file.imageId, 1))
+	id := strconv.Itoa(idn)
 	rId := p.file.addImage(Media{Name: "image" + id + "." + format, Data: pic})
-	w, h := sz.Width, sz.Height
+	w, h := int64(sz.Width), int64(sz.Height)
 	if float64(w)/float64(h) > 1.2 {
 		h = A4_EMU_MAX_WIDTH * h / w
 		w = A4_EMU_MAX_WIDTH
@@ -36,7 +37,7 @@ func (p *Paragraph) AddInlineDrawing(pic []byte) (*Run, error) {
 			},
 			EffectExtent: &WPEffectExtent{},
 			DocPr: &WPDocPr{
-				ID:   id,
+				ID:   idn,
 				Name: "图片 " + id,
 			},
 			CNvGraphicFramePr: &WPCNvGraphicFramePr{
@@ -96,7 +97,7 @@ func (p *Paragraph) AddInlineDrawingFrom(file string) (*Run, error) {
 }
 
 // Size of the inline drawing by EMU
-func (in *WPInline) Size(w, h int) {
+func (in *WPInline) Size(w, h int64) {
 	if in.Extent != nil {
 		in.Extent.CX = w
 		in.Extent.CY = h
@@ -106,3 +107,111 @@ func (in *WPInline) Size(w, h int) {
 		in.Graphic.GraphicData.Pic.SpPr.Xfrm.Ext.CY = h
 	}
 }
+
+// AddAnchorDrawing adds inline drawing to paragraph
+func (p *Paragraph) AddAnchorDrawing(pic []byte) (*Run, error) {
+	sz, format, err := imgsz.DecodeSize(bytes.NewReader(pic))
+	if err != nil {
+		return nil, err
+	}
+	idn := int(atomic.AddUintptr(&p.file.imageId, 1))
+	id := strconv.Itoa(idn)
+	rId := p.file.addImage(Media{Name: "image" + id + "." + format, Data: pic})
+	w, h := int64(sz.Width), int64(sz.Height)
+	if float64(w)/float64(h) > 1.2 {
+		h = A4_EMU_MAX_WIDTH * h / w
+		w = A4_EMU_MAX_WIDTH
+	} else {
+		h = A4_EMU_MAX_WIDTH * h / w / 2
+		w = A4_EMU_MAX_WIDTH / 2
+	}
+	d := &Drawing{
+		Anchor: &WPAnchor{
+			LayoutInCell: 1,
+			AllowOverlap: 1,
+
+			SimplePosXY: &WPSimplePos{},
+			PositionH: &WPPositionH{
+				RelativeFrom: "column",
+			},
+			PositionV: &WPPositionV{
+				RelativeFrom: "paragraph",
+			},
+
+			Extent: &WPExtent{
+				CX: w,
+				CY: h,
+			},
+			EffectExtent: &WPEffectExtent{},
+			WrapNone:     &struct{}{},
+			DocPr: &WPDocPr{
+				ID:   idn,
+				Name: "图片 " + id,
+			},
+			CNvGraphicFramePr: &WPCNvGraphicFramePr{
+				Locks: &AGraphicFrameLocks{
+					NoChangeAspect: 1,
+				},
+			},
+			Graphic: &AGraphic{
+				XMLA: XMLNS_DRAWINGML_MAIN,
+				GraphicData: &AGraphicData{
+					URI: XMLNS_PICTURE,
+					Pic: &PICPic{
+						XMLPIC: XMLNS_DRAWINGML_PICTURE,
+						NonVisualPicProperties: &PICNonVisualPicProperties{
+							NonVisualDrawingProperties: PICNonVisualDrawingProperties{
+								ID:   id,
+								Name: "图片 " + id,
+							},
+						},
+						BlipFill: &PICBlipFill{
+							Blip: ABlip{
+								Embed:  rId,
+								Cstate: "print",
+							},
+						},
+						SpPr: &PICSpPr{
+							Xfrm: AXfrm{
+								Ext: AExt{
+									CX: w,
+									CY: h,
+								},
+							},
+							PrstGeom: APrstGeom{
+								Prst: "rect",
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+	run := &Run{
+		Drawing:       d,
+		RunProperties: &RunProperties{},
+	}
+	p.Children = append(p.Children, ParagraphChild{Run: run})
+	return run, nil
+}
+
+// AddInlineDrawingFrom adds drawing from file to paragraph
+func (p *Paragraph) AddAnchorDrawingFrom(file string) (*Run, error) {
+	data, err := os.ReadFile(file)
+	if err != nil {
+		return nil, err
+	}
+	return p.AddAnchorDrawing(data)
+}
+
+// Size of the anchor drawing by EMU
+func (a *WPAnchor) Size(w, h int64) {
+	if a.Extent != nil {
+		a.Extent.CX = w
+		a.Extent.CY = h
+	}
+	if a.Graphic != nil && a.Graphic.GraphicData != nil && a.Graphic.GraphicData.Pic != nil && a.Graphic.GraphicData.Pic.SpPr != nil {
+		a.Graphic.GraphicData.Pic.SpPr.Xfrm.Ext.CX = w
+		a.Graphic.GraphicData.Pic.SpPr.Xfrm.Ext.CY = h
+	}
+}