Ruby on rails 如何更改对虾的字体
我想做的是使用Prawn生成一个PDF,同时使用一些特定于语言的字符 因此,我得到以下错误:Ruby on rails 如何更改对虾的字体,ruby-on-rails,pdf,prawn,Ruby On Rails,Pdf,Prawn,我想做的是使用Prawn生成一个PDF,同时使用一些特定于语言的字符 因此,我得到以下错误: raise Prawn::Errors::IncompatibleStringEncoding, "Your document includes text that's not compatible with the Windows-1252 character set.\n" \ "If you need full UTF-8 support, use TTF fonts instead
raise Prawn::Errors::IncompatibleStringEncoding,
"Your document includes text that's not compatible with the Windows-1252 character set.\n" \
"If you need full UTF-8 support, use TTF fonts instead of PDF's built-in fonts\n."
因此,我尝试通过以下操作更改字体:
# app/models/prawn/change_font_decorator.rb
Prawn::Document.generate("output.pdf") do
font_families.update("Arial" => {
:normal => Rails.root.join("app/assets/fonts/OpenSans-Regular.ttf"),
:italic => Rails.root.join("app/assets/fonts/OpenSans-Regular.ttf"),
:bold => Rails.root.join("app/assets/fonts/OpenSans-Regular.ttf"),
:bold_italic => Rails.root.join("app/assets/fonts/OpenSans-Regular.ttf")
})
font "Arial"
end
然而,我在尝试生成PDF文件时也遇到了同样的错误
关于如何解决这个问题有什么想法吗?这是一个很好的参考资料,包括关于字体使用的章节。“外部字体”部分与您的问题特别相关
虽然不支持粗体和斜体,但这里有一个基本情况应该可以使用:
Prawn::Document.generate("output.pdf") do
font Rails.root.join("app/assets/fonts/OpenSans-Regular.ttf")
text "Euro €"
end
要同时使用粗体和斜体,最好注册一个与标准PDF字体不冲突的字体系列:
Prawn::Document.generate("output.pdf") do
font_families.update("OpenSans" => {
:normal => Rails.root.join("app/assets/fonts/OpenSans-Regular.ttf"),
:italic => Rails.root.join("app/assets/fonts/OpenSans-Regular.ttf"),
:bold => Rails.root.join("app/assets/fonts/OpenSans-Regular.ttf"),
:bold_italic => Rails.root.join("app/assets/fonts/OpenSans-Regular.ttf")
})
font "OpenSans"
text "Euro €"
end
我应该把上面的代码放在哪里?
如果您是从Prawn::Document
继承的,可以尝试以下操作:
class SpreeInvoicePdf < Prawn::Document
require 'prawn'
def initialize(quote, line_items)
self.font_families.update("OpenSans" => {
:normal => Rails.root.join("vendor/assets/fonts/Open_Sans/OpenSans-Regular.ttf"),
:italic => Rails.root.join("vendor/assets/fonts/Open_Sans/OpenSans-Italic.ttf"),
:bold => Rails.root.join("vendor/assets/fonts/Open_Sans/OpenSans-Bold.ttf"),
:bold_italic => Rails.root.join("vendor/assets/fonts/Open_Sans/OpenSans-BoldItalic.ttf")
})
font "OpenSans"
# etc.
class SpreeInvoicePdf{
:normal=>Rails.root.join(“vendor/assets/font/Open\u Sans/OpenSans Regular.ttf”),
:italic=>Rails.root.join(“供应商/资产/字体/Open\u Sans/OpenSans italic.ttf”),
:bold=>Rails.root.join(“供应商/资产/字体/Open\u Sans/OpenSans bold.ttf”),
:bold_italic=>Rails.root.join(“供应商/assets/font/Open_Sans/OpenSans BoldItalic.ttf”)
})
字体“OpenSAN”
#等等。
当然,您需要转到Google fonts并下载字体,然后将其放在
供应商/assets/fonts/Open_Sans/
目录中。如果您使用initialize构建PDF,只需使用initialize方法更新字体族,然后设置所需字体即可
class InvoicePdf < Prawn::Document
def initialize()
super()
self.font_families.update("DejaVuSans" => {:normal => "#{Rails.root}/public/DejaVuSans.ttf"})
font "DejaVuSans"
business_logo
invoice_items
footer
end
def business_logo
##stuff here
end
end
classinvoicepdf{:normal=>“{Rails.root}/public/DejaVuSans.ttf})
字体“DejaVuSans”
商业标志
发票和其他项目
页脚
结束
def商务标志
##这里的东西
结束
结束
我实际上进入了gems文件夹和Prawn/font.rb
我发现了以下功能:
def font_families
@font_families ||= Hash.new { |h,k| h[k] = {} }.merge!(
{ "Courier" => { :bold => "Courier-Bold",
:italic => "Courier-Oblique",
:bold_italic => "Courier-BoldOblique",
:normal => "Courier" },
"Times-Roman" => { :bold => "Times-Bold",
:italic => "Times-Italic",
:bold_italic => "Times-BoldItalic",
:normal => "Times-Roman" },
"Helvetica" => { :bold => "Helvetica-Bold",
:italic => "Helvetica-Oblique",
:bold_italic => "Helvetica-BoldOblique",
:normal => "Helvetica" }
})
end
我将其编辑为包含Arial:
def font_families
@font_families ||= Hash.new { |h,k| h[k] = {} }.merge!(
{ "Courier" => { :bold => "Courier-Bold",
:italic => "Courier-Oblique",
:bold_italic => "Courier-BoldOblique",
:normal => "Courier" },
"Times-Roman" => { :bold => "Times-Bold",
:italic => "Times-Italic",
:bold_italic => "Times-BoldItalic",
:normal => "Times-Roman" },
"Helvetica" => { :bold => "Helvetica-Bold",
:italic => "Helvetica-Oblique",
:bold_italic => "Helvetica-BoldOblique",
:normal => "Helvetica" },
"Arial" => { :normal => "public/fonts/arial.ttf",
:italic => "public/fonts/ariali.ttf.ttf",
:bold => "public/fonts/arialbd.ttf",
:bold_italic => "public/fonts/arialbi.ttf"}
})
end
还有维奥拉!成功了 如何在table cell中实现这一点?你的回答完全解决了一个我已经绞尽脑汁两周的问题。特别是你的第二段。关键是将所有fontfaces映射到“常规”。在我的例子中,我将“:normal”映射为“regular”,将“:bold”映射为“bold”,等等,完全不知道我做错了什么。谢谢如何使用默认字体?我收到了相同的错误,但我没有设置任何字体
Prawn::Document.new(页面大小:'LETTER',边距:0)