Question

我正在Anjuta的Ubuntu 12.04上用C和GTK编写一个程序。它是nbc（Lego NXT编译器）的图形界面。我有一个GTKTextView。现在我想将textview的内容保存到一个文件中，该文件可以由GTKFileChooser选择。现在我不知道如何从TextView获取文本并将其写入文件。我该怎么做？

Answer 1

首先，使用GtkTextBuffer从GtkTextView获取gtk_text_view_get_buffer()。然后从缓冲区获取开始和结束 GtkTextIters 以用于获取缓冲区的文本。最后，使用您选择的API将该文本写入文件，但是，我建议Gio。这是我旧教程的片段：

gtk_widget_set_sensitive (text_view, FALSE);
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (editor->text_view));
gtk_text_buffer_get_start_iter (buffer, &start);
gtk_text_buffer_get_end_iter (buffer, &end);
text = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);       
gtk_text_buffer_set_modified (buffer, FALSE);
gtk_widget_set_sensitive (editor->text_view, TRUE);

/* set the contents of the file to the text from the buffer */
if (filename != NULL)        
    result = g_file_set_contents (filename, text, -1, &err);
else
    result = g_file_set_contents (editor->filename, text, -1, &err);

if (result == FALSE)
{
    /* error saving file, show message to user */
    error_message (err->message);
    g_error_free (err);
}        

g_free (text);

查看以下API文档：

Answer 2

void on_toolbutton3_clicked(GtkToolButton *toolbutton, gpointer data)
{   


    GtkWidget *dialog;
    dialog = gtk_file_chooser_dialog_new ("Abspeichern...",
                      NULL,
                      GTK_FILE_CHOOSER_ACTION_SAVE,
                      GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                      GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
                      NULL);
    if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
    {
    char *filename;
    char *text;
    GtkTextIter *start;
    GtkTextIter *end;
    gboolean result;
    GError *err;
    filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
    gtk_widget_set_sensitive (data, FALSE);
    savebuffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (data));
gtk_text_buffer_get_start_iter (savebuffer, &start);
gtk_text_buffer_get_end_iter (savebuffer, &end);
text = gtk_text_buffer_get_text (savebuffer, &start, &end, FALSE);       
gtk_text_buffer_set_modified (savebuffer, FALSE);
gtk_widget_set_sensitive (data, TRUE);

/* set the contents of the file to the text from the buffer */
if (filename != NULL)        
    result = g_file_set_contents (filename, text, -1, &err);
else
    result = g_file_set_contents (filename, text, -1, &err);

if (result == FALSE)
{
    /* error saving file, show message to user */

}        

g_free (text); 
    }
    gtk_widget_destroy (dialog);

}

textview1上的数据点。

如何将GTKTextBuffer的内容保存到文件中

2 个答案: