Mike Schwörer
741611a2e1
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97 lines
2.3 KiB
Go
97 lines
2.3 KiB
Go
package wpdf
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import (
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"gogs.mikescher.com/BlackForestBytes/goext/dataext"
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"gogs.mikescher.com/BlackForestBytes/goext/langext"
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)
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type PDFLineOpt struct {
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lineWidth *float64
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drawColor *PDFColor
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alpha *dataext.Tuple[float64, PDFBlendMode]
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capStyle *PDFLineCapStyle
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debug *bool
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}
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func NewPDFLineOpt() *PDFLineOpt {
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return &PDFLineOpt{}
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}
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func (opt *PDFLineOpt) LineWidth(v float64) *PDFLineOpt {
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opt.lineWidth = &v
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return opt
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}
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func (opt *PDFLineOpt) DrawColor(cr, cg, cb int) *PDFLineOpt {
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opt.drawColor = langext.Ptr(rgbToColor(cr, cg, cb))
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return opt
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}
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func (opt *PDFLineOpt) DrawColorHex(c uint32) *PDFLineOpt {
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opt.drawColor = langext.Ptr(hexToColor(c))
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return opt
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}
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func (opt *PDFLineOpt) Alpha(alpha float64, blendMode PDFBlendMode) *PDFLineOpt {
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opt.alpha = &dataext.Tuple[float64, PDFBlendMode]{V1: alpha, V2: blendMode}
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return opt
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}
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func (opt *PDFLineOpt) CapButt() *PDFLineOpt {
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opt.capStyle = langext.Ptr(CapButt)
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return opt
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}
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func (opt *PDFLineOpt) CapSquare() *PDFLineOpt {
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opt.capStyle = langext.Ptr(CapSquare)
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return opt
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}
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func (opt *PDFLineOpt) CapRound() *PDFLineOpt {
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opt.capStyle = langext.Ptr(CapRound)
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return opt
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}
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func (opt *PDFLineOpt) Debug(v bool) *PDFLineOpt {
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opt.debug = &v
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return opt
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}
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func (b *WPDFBuilder) Line(x1 float64, y1 float64, x2 float64, y2 float64, opts ...*PDFLineOpt) {
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var lineWidth *float64
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var drawColor *PDFColor
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var alphaOverride *dataext.Tuple[float64, PDFBlendMode]
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capStyle := CapButt
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debug := b.debug
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for _, opt := range opts {
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lineWidth = langext.CoalesceOpt(opt.lineWidth, lineWidth)
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drawColor = langext.CoalesceOpt(opt.drawColor, drawColor)
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alphaOverride = langext.CoalesceOpt(opt.alpha, alphaOverride)
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capStyle = langext.Coalesce(opt.capStyle, capStyle)
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debug = langext.Coalesce(opt.debug, debug)
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}
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if lineWidth != nil {
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old := b.GetLineWidth()
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b.SetLineWidth(*lineWidth)
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defer func() { b.SetLineWidth(old) }()
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}
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if drawColor != nil {
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oldR, oldG, oldB := b.GetDrawColor()
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b.SetDrawColor(drawColor.R, drawColor.G, drawColor.B)
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defer func() { b.SetDrawColor(oldR, oldG, oldB) }()
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}
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if alphaOverride != nil {
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oldA, oldBMS := b.b.GetAlpha()
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b.b.SetAlpha(alphaOverride.V1, string(alphaOverride.V2))
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defer func() { b.b.SetAlpha(oldA, oldBMS) }()
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}
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b.b.SetLineCapStyle(string(capStyle))
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b.b.Line(x1, y1, x2, y2)
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}
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