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Improve comments for the styled paragraph component

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This commit is contained in:
Adrian-George Bostan 2018-09-30 19:52:30 +03:00
parent 6819172880
commit 5be78fa40a
1 changed files with 7 additions and 7 deletions
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14
pdf/creator/styled_paragraph.go
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@ -20,10 +20,10 @@ import (
// StyledParagraph represents text drawn with a specified font and can wrap across lines and pages. // StyledParagraph represents text drawn with a specified font and can wrap across lines and pages.
// By default occupies the available width in the drawing context. // By default occupies the available width in the drawing context.
type StyledParagraph struct { type StyledParagraph struct {
// Text chunks with styles that compose the paragraph // Text chunks with styles that compose the paragraph.
chunks []TextChunk chunks []TextChunk
// Style used for the paragraph for spacing and offsets // Style used for the paragraph for spacing and offsets.
defaultStyle TextStyle defaultStyle TextStyle
// The text encoder which can convert the text (as runes) into a series of glyphs and get character metrics. // The text encoder which can convert the text (as runes) into a series of glyphs and get character metrics.
@ -64,7 +64,7 @@ type StyledParagraph struct {
// Text chunk lines after wrapping to available width. // Text chunk lines after wrapping to available width.
lines [][]TextChunk lines [][]TextChunk
// Before render callback // Before render callback.
beforeRender func(p *StyledParagraph, ctx DrawContext) beforeRender func(p *StyledParagraph, ctx DrawContext)
} }
@ -258,7 +258,7 @@ func (p *StyledParagraph) getTextWidth() float64 {
return width return width
} }
// getTextLineWidth calculates the text width of a provided collection of text chunks // getTextLineWidth calculates the text width of a provided collection of text chunks.
func (p *StyledParagraph) getTextLineWidth(line []TextChunk) float64 { func (p *StyledParagraph) getTextLineWidth(line []TextChunk) float64 {
var width float64 var width float64
for _, chunk := range line { for _, chunk := range line {
@ -493,7 +493,7 @@ func (p *StyledParagraph) GeneratePageBlocks(ctx DrawContext) ([]*Block, DrawCon
// Draw block on specified location on Page, adding to the content stream. // Draw block on specified location on Page, adding to the content stream.
func drawStyledParagraphOnBlock(blk *Block, p *StyledParagraph, ctx DrawContext) (DrawContext, error) { func drawStyledParagraphOnBlock(blk *Block, p *StyledParagraph, ctx DrawContext) (DrawContext, error) {
// Find first free index for the font resources of the paragraph // Find first free index for the font resources of the paragraph.
num := 1 num := 1
fontName := core.PdfObjectName(fmt.Sprintf("Font%d", num)) fontName := core.PdfObjectName(fmt.Sprintf("Font%d", num))
for blk.resources.HasFontByName(fontName) { for blk.resources.HasFontByName(fontName) {
@ -501,7 +501,7 @@ func drawStyledParagraphOnBlock(blk *Block, p *StyledParagraph, ctx DrawContext)
fontName = core.PdfObjectName(fmt.Sprintf("Font%d", num)) fontName = core.PdfObjectName(fmt.Sprintf("Font%d", num))
} }
// Add default font to the page resources // Add default font to the page resources.
err := blk.resources.SetFontByName(fontName, p.defaultStyle.Font.ToPdfObject()) err := blk.resources.SetFontByName(fontName, p.defaultStyle.Font.ToPdfObject())
if err != nil { if err != nil {
return ctx, err return ctx, err
@ -514,7 +514,7 @@ func drawStyledParagraphOnBlock(blk *Block, p *StyledParagraph, ctx DrawContext)
// Wrap the text into lines. // Wrap the text into lines.
p.wrapText() p.wrapText()
// Add the fonts of all chunks to the page resources // Add the fonts of all chunks to the page resources.
fonts := [][]core.PdfObjectName{} fonts := [][]core.PdfObjectName{}
for _, line := range p.lines { for _, line := range p.lines {