OpenEuphoria

1. EuGTK-3.0 File Dialogue question

• Posted by K_D_R Jan 11, 2012
• 1262 views

How can you pass a file name to a console application? Specifically, I have been trying to incorporate a EuGTK file dialog into ed.ex.

I cobbled this together from Irv's text25.ex demo:

include GtkEngine.e 
include std/io.e 
include std/text.e 
include std/console.e 
include std/sequence.e 
 
constant filter1 = create(GtkFileFilter) 
	set(filter1,"name","Euphoria files") 
	set(filter1,"add pattern","*.ex") 
	set(filter1,"add pattern","*.e") 
 
constant filter2 = create(GtkFileFilter) 
	set(filter2,"name","all text files") 
	set(filter2,"add mime type","text/plain") 
object filename 
 
export function select_file() 
atom dlg = create(GtkFileChooserDialog) 
	set(dlg,"action",GTK_FILE_CHOOSER_ACTION_OPEN) 
	set(dlg,"add filter",filter1) 
	set(dlg,"add filter",filter2) 
	set(dlg,"add button","gtk-cancel",GTK_RESPONSE_CANCEL) 
	set(dlg,"add button","gtk-ok",GTK_RESPONSE_APPLY) 
 
    if get(dlg,"run") = GTK_RESPONSE_APPLY then 
	filename = get(dlg,"filename") 
	if not atom(filename) then  
	    display(filename) 
	end if 
    end if 
     
    set(dlg,"hide") 
--  return 1 
    return filename 
end function 

Unless 1 is returned the file selector will not close until the calling window is closed in ed.ex. But if you return 1, then the file is not passed to the editor.

This is the calling routine from ed.ex:

procedure new_file() 
    sequence answer 
	 
	if modified and last_use() then 
		while TRUE do 
		    set_top_line("") 
		    printf(SCREEN, "save changes to %s? ", {file_name}) 
		    answer = key_gets("yn", {}) 
		    if find('y', answer) then 
			save_file(file_name) 
			exit 
		    elsif find('n', answer) then 
			exit 
		    end if 
		end while 
	end if 
	save_state() 
--          set_top_line("new file name: ") 
--          answer = delete_trailing_white(key_gets("", file_history)) 
	 
 
   -->>>--  answer = select_file()  --<<<<<--- 
	 
            if length(answer) != 0 then 
	    file_name = answer 
	    stop = TRUE 
	end if 
end procedure 

Any suggestions would be appreciated.

Regards, Kenneth Rhodes

3. Re: EuGTK-3.0 File Dialogue question

• Posted by K_D_R Jan 11, 2012
• 1282 views

Thanks, Jim

Your code works much better. The file selector works fairly well, but after selecting the file by double clicking on it, it remains open, even though the selected file has loaded into the editor window/pane. The file selector will not respond to the "cancel", "ok", or "x" -close buttons, but it does respond to the full/reduce window size box button. Also, it will minimize and appears not to spawn additional instances when used repeatedly. However; it seems to freeze, if you navigate to another directory and load a file. I think there are additional commands regarding navigation, new folders and what not.

This is a big step forward.

The compiled version of my editor without the gtk file selector = 660k. With the gtk file selector = 1436k.

I think it might be worth pursuing a bit further to see if a robust file selector can be developed. I know of of several console utility programs which could really benefit from a file selector.

Your help is deeply appreciated.

5. Re: EuGTK-3.0 File Dialogue question

• Posted by K_D_R Jan 13, 2012
• 1128 views

OK. Thanks for the heads up - I'll use EuGTK for other projects.