Shiny：改进/格式化 verbatimTextOutput() 的文本输出

Question

我

library(shiny)

ui <- fluidPage(
  
  # App title ----
  titlePanel("Interactive CLicks"),   
  br(),
  fluidRow(
    br(),
    verbatimTextOutput("info_hover"),
    plotOutput(outputId = "distPlot",hover = "plot_hover",click= "plot_click", dblclick = "plot_db_click",height = 500, width = 1600 ),
    br(),
    verbatimTextOutput("info_click"),
    verbatimTextOutput("info_db_click"),    
    verbatimTextOutput("double_to_single_click"))
  
)




## server.R
server <- function( input, output, session){
  
  #Click Points
  single.source_coords <- reactiveValues(xy=data.frame(x=c(1,1),  y=c(1,1)))
  double.source_coords <- reactiveValues(xy=data.frame(x=c(1,1),  y=c(1,1)))
  
  
  observeEvent(input$plot_click, {
    single.source_coords$xy[2,] <- c(input$plot_click$x, input$plot_click$y)
  })
  
  
  observeEvent(input$plot_db_click, {
    double.source_coords$xy[2,] <- c(input$plot_db_click$x, input$plot_db_click$y)
  })
  
  
  ## RenderPlot 
  output$distPlot <- renderPlot({ 
    plot(1, 1,
         xlim=c(0,10), ylim=c(0,10))
    
    #Click points
    points( single.source_coords$xy[2,1], single.source_coords$xy[2,2], cex=3, pch=17)
    points( double.source_coords$xy[2,1], double.source_coords$xy[2,2], cex=3, pch=17)
    segments(x0 =single.source_coords$xy[2,1], y0 = single.source_coords$xy[2,2], x1 =  double.source_coords$xy[2,1], y1 = double.source_coords$xy[2,2], col = "darkred", lwd = 2, lty = 3)
    
    
  })        
  
  output$info_click <- renderText({
    paste0("Single Click Multiple", "\nX=", single.source_coords$xy[2,1], "     Y= ",single.source_coords$xy[2,2], "\nX=", round(single.source_coords$xy[2,1],4), "     Y= ",round(single.source_coords$xy[2,2], 5))
  })
  
  output$info_db_click <- renderText({
    paste0("Double  Multiple", "\nX=", double.source_coords$xy[2,1], "     Y= ",double.source_coords$xy[2,2], "\nX=", round(double.source_coords$xy[2,1],2), "     Y= ",round(double.source_coords$xy[2,2],4))
  })
  
  output$info_hover <- renderText({
    paste0("Hover  Multiple", "\nX=", input$plot_hover$x*2, "     Y= ",input$plot_hover$y*2,  "\nThis is X=", round(input$plot_hover$x*2,5), "   not A but Y= ",round(input$plot_hover$y*2,4))
  })
  
  
  
  
}

### Run Application
shinyApp(ui, server)

在 verbatimTextOutput() 的 3 个输出区域中，由于标签和输出的长度不同，verbatimTextOutput() 的结果看起来很糟糕

有什么方法可以对齐标签和输出，使其更美观吗？我喜欢 verbatimTextOutput() 的紧凑性，我不想转到表输出。我只是想找到一种方法来改进 verbatimTextOutput() 的格式。