fix wrong git ignore
This commit is contained in:
Adrian Zürcher
126
internal/pdf/annotator/circle.go
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126
internal/pdf/annotator/circle.go
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@@ -0,0 +1,126 @@
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package annotator
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import (
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"gitea.tecamino.com/paadi/pdfmerge/internal/pdf/common"
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"gitea.tecamino.com/paadi/pdfmerge/internal/pdf/contentstream/draw"
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pdfcore "gitea.tecamino.com/paadi/pdfmerge/internal/pdf/core"
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pdf "gitea.tecamino.com/paadi/pdfmerge/internal/pdf/model"
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)
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type CircleAnnotationDef struct {
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X float64
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Y float64
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Width float64
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Height float64
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FillEnabled bool // Show fill?
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FillColor *pdf.PdfColorDeviceRGB
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BorderEnabled bool // Show border?
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BorderWidth float64
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BorderColor *pdf.PdfColorDeviceRGB
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Opacity float64 // Alpha value (0-1).
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}
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// Creates a circle/ellipse annotation object with appearance stream that can be added to page PDF annotations.
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func CreateCircleAnnotation(circDef CircleAnnotationDef) (*pdf.PdfAnnotation, error) {
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circAnnotation := pdf.NewPdfAnnotationCircle()
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if circDef.BorderEnabled {
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r, g, b := circDef.BorderColor.R(), circDef.BorderColor.G(), circDef.BorderColor.B()
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circAnnotation.C = pdfcore.MakeArrayFromFloats([]float64{r, g, b})
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bs := pdf.NewBorderStyle()
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bs.SetBorderWidth(circDef.BorderWidth)
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circAnnotation.BS = bs.ToPdfObject()
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}
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if circDef.FillEnabled {
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r, g, b := circDef.FillColor.R(), circDef.FillColor.G(), circDef.FillColor.B()
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circAnnotation.IC = pdfcore.MakeArrayFromFloats([]float64{r, g, b})
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} else {
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circAnnotation.IC = pdfcore.MakeArrayFromIntegers([]int{}) // No fill.
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}
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if circDef.Opacity < 1.0 {
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circAnnotation.CA = pdfcore.MakeFloat(circDef.Opacity)
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}
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// Make the appearance stream (for uniform appearance).
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apDict, bbox, err := makeCircleAnnotationAppearanceStream(circDef)
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if err != nil {
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return nil, err
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}
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circAnnotation.AP = apDict
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circAnnotation.Rect = pdfcore.MakeArrayFromFloats([]float64{bbox.Llx, bbox.Lly, bbox.Urx, bbox.Ury})
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return circAnnotation.PdfAnnotation, nil
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}
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func makeCircleAnnotationAppearanceStream(circDef CircleAnnotationDef) (*pdfcore.PdfObjectDictionary, *pdf.PdfRectangle, error) {
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form := pdf.NewXObjectForm()
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form.Resources = pdf.NewPdfPageResources()
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gsName := ""
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if circDef.Opacity < 1.0 {
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// Create graphics state with right opacity.
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gsState := pdfcore.MakeDict()
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gsState.Set("ca", pdfcore.MakeFloat(circDef.Opacity))
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gsState.Set("CA", pdfcore.MakeFloat(circDef.Opacity))
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err := form.Resources.AddExtGState("gs1", gsState)
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if err != nil {
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common.Log.Debug("Unable to add extgstate gs1")
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return nil, nil, err
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}
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gsName = "gs1"
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}
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content, localBbox, globalBbox, err := drawPdfCircle(circDef, gsName)
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if err != nil {
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return nil, nil, err
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}
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err = form.SetContentStream(content, nil)
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if err != nil {
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return nil, nil, err
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}
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// Local bounding box for the XObject Form.
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form.BBox = localBbox.ToPdfObject()
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apDict := pdfcore.MakeDict()
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apDict.Set("N", form.ToPdfObject())
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return apDict, globalBbox, nil
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}
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func drawPdfCircle(circDef CircleAnnotationDef, gsName string) ([]byte, *pdf.PdfRectangle, *pdf.PdfRectangle, error) {
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// The annotation is drawn locally in a relative coordinate system with 0,0 as the origin rather than an offset.
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circle := draw.Circle{
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X: circDef.X,
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Y: circDef.Y,
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Width: circDef.Width,
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Height: circDef.Height,
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FillEnabled: circDef.FillEnabled,
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FillColor: circDef.FillColor,
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BorderEnabled: circDef.BorderEnabled,
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BorderWidth: circDef.BorderWidth,
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BorderColor: circDef.BorderColor,
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Opacity: circDef.Opacity,
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}
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content, localBbox, err := circle.Draw(gsName)
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if err != nil {
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return nil, nil, nil, err
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}
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// Bounding box - global page coordinate system (with offset).
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globalBbox := &pdf.PdfRectangle{}
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globalBbox.Llx = circDef.X + localBbox.Llx
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globalBbox.Lly = circDef.Y + localBbox.Lly
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globalBbox.Urx = circDef.X + localBbox.Urx
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globalBbox.Ury = circDef.Y + localBbox.Ury
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return content, localBbox, globalBbox, nil
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}
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133
internal/pdf/annotator/line.go
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133
internal/pdf/annotator/line.go
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@@ -0,0 +1,133 @@
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package annotator
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import (
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"gitea.tecamino.com/paadi/pdfmerge/internal/pdf/common"
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"gitea.tecamino.com/paadi/pdfmerge/internal/pdf/contentstream/draw"
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pdfcore "gitea.tecamino.com/paadi/pdfmerge/internal/pdf/core"
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pdf "gitea.tecamino.com/paadi/pdfmerge/internal/pdf/model"
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)
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// Defines a line between point 1 (X1,Y1) and point 2 (X2,Y2). The line ending styles can be none (regular line),
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// or arrows at either end. The line also has a specified width, color and opacity.
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type LineAnnotationDef struct {
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X1 float64
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Y1 float64
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X2 float64
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Y2 float64
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LineColor *pdf.PdfColorDeviceRGB
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Opacity float64 // Alpha value (0-1).
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LineWidth float64
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LineEndingStyle1 draw.LineEndingStyle // Line ending style of point 1.
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LineEndingStyle2 draw.LineEndingStyle // Line ending style of point 2.
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}
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// Creates a line annotation object that can be added to page PDF annotations.
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func CreateLineAnnotation(lineDef LineAnnotationDef) (*pdf.PdfAnnotation, error) {
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// Line annotation.
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lineAnnotation := pdf.NewPdfAnnotationLine()
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// Line endpoint locations.
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lineAnnotation.L = pdfcore.MakeArrayFromFloats([]float64{lineDef.X1, lineDef.Y1, lineDef.X2, lineDef.Y2})
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// Line endings.
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le1 := pdfcore.MakeName("None")
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if lineDef.LineEndingStyle1 == draw.LineEndingStyleArrow {
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le1 = pdfcore.MakeName("ClosedArrow")
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}
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le2 := pdfcore.MakeName("None")
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if lineDef.LineEndingStyle2 == draw.LineEndingStyleArrow {
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le2 = pdfcore.MakeName("ClosedArrow")
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}
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lineAnnotation.LE = pdfcore.MakeArray(le1, le2)
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// Opacity.
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if lineDef.Opacity < 1.0 {
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lineAnnotation.CA = pdfcore.MakeFloat(lineDef.Opacity)
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}
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r, g, b := lineDef.LineColor.R(), lineDef.LineColor.G(), lineDef.LineColor.B()
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lineAnnotation.IC = pdfcore.MakeArrayFromFloats([]float64{r, g, b}) // fill color of line endings, rgb 0-1.
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lineAnnotation.C = pdfcore.MakeArrayFromFloats([]float64{r, g, b}) // line color, rgb 0-1.
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bs := pdf.NewBorderStyle()
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bs.SetBorderWidth(lineDef.LineWidth) // Line width: 3 points.
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lineAnnotation.BS = bs.ToPdfObject()
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// Make the appearance stream (for uniform appearance).
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apDict, bbox, err := makeLineAnnotationAppearanceStream(lineDef)
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if err != nil {
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return nil, err
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}
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lineAnnotation.AP = apDict
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// The rect specifies the location and dimensions of the annotation. Technically if the annotation could not
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// be displayed if it goes outside these bounds, although rarely enforced.
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lineAnnotation.Rect = pdfcore.MakeArrayFromFloats([]float64{bbox.Llx, bbox.Lly, bbox.Urx, bbox.Ury})
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return lineAnnotation.PdfAnnotation, nil
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}
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func makeLineAnnotationAppearanceStream(lineDef LineAnnotationDef) (*pdfcore.PdfObjectDictionary, *pdf.PdfRectangle, error) {
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form := pdf.NewXObjectForm()
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form.Resources = pdf.NewPdfPageResources()
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gsName := ""
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if lineDef.Opacity < 1.0 {
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// Create graphics state with right opacity.
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gsState := pdfcore.MakeDict()
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gsState.Set("ca", pdfcore.MakeFloat(lineDef.Opacity))
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err := form.Resources.AddExtGState("gs1", gsState)
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if err != nil {
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common.Log.Debug("Unable to add extgstate gs1")
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return nil, nil, err
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}
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gsName = "gs1"
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}
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content, localBbox, globalBbox, err := drawPdfLine(lineDef, gsName)
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if err != nil {
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return nil, nil, err
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}
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err = form.SetContentStream(content, nil)
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if err != nil {
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return nil, nil, err
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}
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// Local bounding box for the XObject Form.
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form.BBox = localBbox.ToPdfObject()
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apDict := pdfcore.MakeDict()
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apDict.Set("N", form.ToPdfObject())
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return apDict, globalBbox, nil
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}
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func drawPdfLine(lineDef LineAnnotationDef, gsName string) ([]byte, *pdf.PdfRectangle, *pdf.PdfRectangle, error) {
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// The annotation is drawn locally in a relative coordinate system with 0,0 as the origin rather than an offset.
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line := draw.Line{
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X1: 0,
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Y1: 0,
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X2: lineDef.X2 - lineDef.X1,
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Y2: lineDef.Y2 - lineDef.Y1,
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LineColor: lineDef.LineColor,
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Opacity: lineDef.Opacity,
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LineWidth: lineDef.LineWidth,
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LineEndingStyle1: lineDef.LineEndingStyle1,
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LineEndingStyle2: lineDef.LineEndingStyle2,
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}
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content, localBbox, err := line.Draw(gsName)
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if err != nil {
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return nil, nil, nil, err
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}
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// Bounding box - global page coordinate system (with offset).
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globalBbox := &pdf.PdfRectangle{}
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globalBbox.Llx = lineDef.X1 + localBbox.Llx
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globalBbox.Lly = lineDef.Y1 + localBbox.Lly
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globalBbox.Urx = lineDef.X1 + localBbox.Urx
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globalBbox.Ury = lineDef.Y1 + localBbox.Ury
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return content, localBbox, globalBbox, nil
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}
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129
internal/pdf/annotator/rectangle.go
Normal file
129
internal/pdf/annotator/rectangle.go
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@@ -0,0 +1,129 @@
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package annotator
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import (
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"gitea.tecamino.com/paadi/pdfmerge/internal/pdf/common"
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"gitea.tecamino.com/paadi/pdfmerge/internal/pdf/contentstream/draw"
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pdfcore "gitea.tecamino.com/paadi/pdfmerge/internal/pdf/core"
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pdf "gitea.tecamino.com/paadi/pdfmerge/internal/pdf/model"
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)
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// A rectangle defined with a specified Width and Height and a lower left corner at (X,Y). The rectangle can
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// optionally have a border and a filling color.
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// The Width/Height includes the border (if any specified).
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type RectangleAnnotationDef struct {
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X float64
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Y float64
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Width float64
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Height float64
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FillEnabled bool // Show fill?
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FillColor *pdf.PdfColorDeviceRGB
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BorderEnabled bool // Show border?
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BorderWidth float64
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BorderColor *pdf.PdfColorDeviceRGB
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Opacity float64 // Alpha value (0-1).
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}
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// Creates a rectangle annotation object that can be added to page PDF annotations.
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func CreateRectangleAnnotation(rectDef RectangleAnnotationDef) (*pdf.PdfAnnotation, error) {
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rectAnnotation := pdf.NewPdfAnnotationSquare()
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if rectDef.BorderEnabled {
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r, g, b := rectDef.BorderColor.R(), rectDef.BorderColor.G(), rectDef.BorderColor.B()
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rectAnnotation.C = pdfcore.MakeArrayFromFloats([]float64{r, g, b})
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bs := pdf.NewBorderStyle()
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bs.SetBorderWidth(rectDef.BorderWidth)
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rectAnnotation.BS = bs.ToPdfObject()
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}
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if rectDef.FillEnabled {
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r, g, b := rectDef.FillColor.R(), rectDef.FillColor.G(), rectDef.FillColor.B()
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rectAnnotation.IC = pdfcore.MakeArrayFromFloats([]float64{r, g, b})
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} else {
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rectAnnotation.IC = pdfcore.MakeArrayFromIntegers([]int{}) // No fill.
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}
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if rectDef.Opacity < 1.0 {
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rectAnnotation.CA = pdfcore.MakeFloat(rectDef.Opacity)
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}
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// Make the appearance stream (for uniform appearance).
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apDict, bbox, err := makeRectangleAnnotationAppearanceStream(rectDef)
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if err != nil {
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return nil, err
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}
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rectAnnotation.AP = apDict
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rectAnnotation.Rect = pdfcore.MakeArrayFromFloats([]float64{bbox.Llx, bbox.Lly, bbox.Urx, bbox.Ury})
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return rectAnnotation.PdfAnnotation, nil
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}
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func makeRectangleAnnotationAppearanceStream(rectDef RectangleAnnotationDef) (*pdfcore.PdfObjectDictionary, *pdf.PdfRectangle, error) {
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form := pdf.NewXObjectForm()
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form.Resources = pdf.NewPdfPageResources()
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gsName := ""
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if rectDef.Opacity < 1.0 {
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// Create graphics state with right opacity.
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gsState := pdfcore.MakeDict()
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gsState.Set("ca", pdfcore.MakeFloat(rectDef.Opacity))
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gsState.Set("CA", pdfcore.MakeFloat(rectDef.Opacity))
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err := form.Resources.AddExtGState("gs1", gsState)
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if err != nil {
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common.Log.Debug("Unable to add extgstate gs1")
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return nil, nil, err
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}
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gsName = "gs1"
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}
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content, localBbox, globalBbox, err := drawPdfRectangle(rectDef, gsName)
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if err != nil {
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return nil, nil, err
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}
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err = form.SetContentStream(content, nil)
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if err != nil {
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return nil, nil, err
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}
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// Local bounding box for the XObject Form.
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form.BBox = localBbox.ToPdfObject()
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apDict := pdfcore.MakeDict()
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apDict.Set("N", form.ToPdfObject())
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return apDict, globalBbox, nil
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}
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func drawPdfRectangle(rectDef RectangleAnnotationDef, gsName string) ([]byte, *pdf.PdfRectangle, *pdf.PdfRectangle, error) {
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// The annotation is drawn locally in a relative coordinate system with 0,0 as the origin rather than an offset.
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rect := draw.Rectangle{
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X: 0,
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Y: 0,
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Width: rectDef.Width,
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Height: rectDef.Height,
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FillEnabled: rectDef.FillEnabled,
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FillColor: rectDef.FillColor,
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BorderEnabled: rectDef.BorderEnabled,
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BorderWidth: 2 * rectDef.BorderWidth,
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BorderColor: rectDef.BorderColor,
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Opacity: rectDef.Opacity,
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}
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content, localBbox, err := rect.Draw(gsName)
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if err != nil {
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return nil, nil, nil, err
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}
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// Bounding box - global page coordinate system (with offset).
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globalBbox := &pdf.PdfRectangle{}
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globalBbox.Llx = rectDef.X + localBbox.Llx
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globalBbox.Lly = rectDef.Y + localBbox.Lly
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globalBbox.Urx = rectDef.X + localBbox.Urx
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globalBbox.Ury = rectDef.Y + localBbox.Ury
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return content, localBbox, globalBbox, nil
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}
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Reference in New Issue
Block a user