Text object properties

Comments

• Matthias

  December 2009 edited November -1

  Hi,

  In order to make the text objects show up in the given orientation and size you need to select a vector font and check the "Apply text scaling and orientation" check box on the "Display" page in the "Setup" dialog. By default, text objects show up in a fixed orientation and size. That is probably why you don't see any effect.

  Best regards,

  Matthias
• phlion

  December 2009 edited December 2009

  Hi Matthias,
  
  Yes, I followed the steps to change the display font from Default to others(Sans serif or Gothic) in Setup window, and the text modified to the one I specified.
  
  Another issue which is not so important, when we select several text objects and try to change the properties, is there a function like "apply modified to all selected"? so we can change the Text Size and Orientation at one time and would not effect the Text and Position.
  
  Best Regards,
  --
  chi-hsiang-hung
• Matthias

  January 2010 edited January 2010

  Hi,

  applying one change to multiple objects in the selection is not straightforward unfortunately for internal reasons. That is something to go into some "search & replace" functionality.

  For your use case however as usual there is a script to do this:

  class MenuAction < RBA::Action
    def initialize( title, shortcut, &action ) 
      self.title = title
      self.shortcut = shortcut
      @action = action
    end
    def triggered 
      @action.call( self ) 
    end
  private
    @action
  end
  
  $change_texts = MenuAction.new( "Change Texts", "" ) do 
  
    app = RBA::Application.instance
    mw = app.main_window
  
    lv = mw.current_view
    if lv == nil
      raise "No view selected"
    end
  
    # Begin a transaction for undo/redo
    lv.transaction("Change text properties");
  
    # An array holding the new texts (shape container/text pairs)
    new_texts = []
  
    # First, create the new texts and delete the existing ones
    lv.each_object_selected do |sel|
  
      if !sel.is_cell_inst? 
  
        shapes = lv.cellview(sel.cv_index).layout.cell(sel.cell_index).shapes(sel.layer)
        if shapes.is_valid?(sel.shape) && sel.shape.is_text?
  
          # get and erase the current object
          text = sel.shape.text
          shapes.erase(sel.shape)
  
          # change the text orientation to r0 (trans.disp defines the
          # text position and must be maintained)
          text.trans = RBA::Trans.new(RBA::Trans::r0, text.trans.disp) 
  
          # change the text size to 1000DBU
          text.size = 1000
  
          # change the text string (appending a "*")
          text.string = text.string + "*"
  
          # store the new object together with a reference to the shape container
          new_texts.push([shapes, text])
  
        end
  
      end
  
    end
  
    # Insert the new shapes (doing that in a second step avoids problems 
    # when multiple instances of the same shape are selected)
    new_texts.each do |p|
      p[0].insert(p[1])
    end
  
    # After that we must cancel all operations since the selection
    # is no longer valid.
    lv.cancel
  
    # Commit the operation 
    lv.commit
  
  end
  
  app = RBA::Application.instance
  mw = app.main_window
  
  menu = mw.menu
  menu.insert_separator("tools_menu.end", "name")
  menu.insert_item("tools_menu.end", "change_texts", $change_texts)
  

  This sample resets the text orientation to r0 and the text size to 1 micron. For demonstration, this script also adds a "*" to the string. For the actual application, this script should be adjusted accordingly.

  Best regards,

  Matthias
• phlion

  January 2010 edited January 2010

  Hi Matthias,
  
  I tried to run this code with some modification, and the program is crashed on the line "lv.cellview(sel.cv_index).cell.shapes(sel.layer).replace(sel.shape, text)", even I almost remark all the lines.
  
  The error message is "Segmentation fault", and I have no idea how to fix it, could you please give me a hint to solve this issue?
  
  The test platform is klayout v0.19.2, ruby 1.8.6
  
  BTW, is it possible to popup an interactive window that we could input the orientation/size/text in it and apply the input value in the change_texts code?
  maybe it would be better for operation.
  
  Best Regards,
  --
  chi-hsiang-hung
• Matthias

  January 2010 edited November -1

  Hi,

  the segmentation fault was probably a bug: when a text was selected in a child cell, the script did not work properly. I changed the code above accordingly.

  Currently there is not a good method to provide user interfaces with ruby scripts. Therefore this script does not provide a dialog right now.

  Best regards,

  Matthias