Re: Updating a ListStore

[Bob Caryl <bob fis-cal com>]

Hey Andrew:

Insert the following into your "while (location != string::npos)"  loop after you update the list:

while(Gtk::Main::instance()->events_pending())
    Gtk::Main::instance()->iteration();

This will allow the framework to update the screen between row additions to your liststore.

Best regards,
Bob Caryl

On Thu, 2005-02-10 at 21:47, Andrew Krause wrote:
> In my code, I run different commands such as autogen & make by using fopen. I
> then use fgets to get the output and then split the buffer into lines. Each
> line is added to the ListStore as it is parsed, but my problem is that the
> ListStore does not update until after the command is run. How could I update
> the ListStore as the output is added. This is an excerpt of the code:
>
>   /* Begin Code */
>   FILE *in;
>   char buff[128];
>   unsigned int location;
>   string text = "\0", line;
>   ModelColumns build_columns;
>   RefPtr<ListStore> build_model;
>   
>   /* Make new model & set it to the List Store */
>   build_box.remove_all_columns();
>   build_model = ListStore::create(build_columns);
>   build_box.set_model(build_model);
>
>   /* Append command to the ListStore & add column */
>   TreeModel::Row row = *(build_model->append());
>   row[build_columns.col_text] = command;
>   build_box.set_model(build_model);
>   build_box.append_column(COMP_OUTPUT, build_columns.col_text);
>    
>   /* Run command */
>   in = popen(command.c_str(), "r");
>   while (fgets(buff, sizeof(buff), in)) {
>     /* Set buffer to string & split if an endl is found */
>     text += buff;
>     location = text.find("\n",0);
>     /* Append output line & erase it from the text string */
>     while (location != string::npos) {
>       line = text.substr(0,location);
>       row = *(build_model->append());
>       row[build_columns.col_text] = line;
>       text.erase(0,location+1);
>       location = text.find("\n",0);
>     }
>   }
>
> Thanks for the help!
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Robert L. Caryl Jr.
Fiscal Systems Inc.

102 Commerce Circle

Madison  AL 35758



256.772.8920 ext. 108 -- Office

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