/* Internal function: Request either latin-1 or unicode line input. */
void
-request_line_event_common(winid_t win, gboolean insert, gchar *inserttext)
+request_line_event_common(winid_t win, glui32 maxlen, gboolean insert, gchar *inserttext)
{
- GtkTextBuffer *window_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(win->widget));
+ GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(win->widget) );
- /* Move the input_position mark to the end of the window_buffer */
- GtkTextMark *input_position = gtk_text_buffer_get_mark(window_buffer, "input_position");
- GtkTextIter end_iter;
- gtk_text_buffer_get_end_iter(window_buffer, &end_iter);
- gtk_text_buffer_move_mark(window_buffer, input_position, &end_iter);
+ if(win->type == wintype_TextGrid)
+ {
+ GtkTextMark *cursor = gtk_text_buffer_get_mark(buffer, "cursor_position");
+ GtkTextIter start_iter, end_iter;
+ gtk_text_buffer_get_iter_at_mark(buffer, &start_iter, cursor);
+
+ /* Determine the maximum length of the line input */
+ gint cursorpos = gtk_text_iter_get_line_offset(&start_iter);
+ gint input_length = MIN(win->width - 1 - cursorpos, win->line_input_buffer_max_len);
+ end_iter = start_iter;
+ gtk_text_iter_set_line_offset(&end_iter, cursorpos + input_length);
+
+ /* Insert pre-entered text if needed */
+ gchar *text;
+ if(!insert)
+ text = g_strnfill(input_length, ' ');
+ else
+ {
+ gchar *blanks = g_strnfill(input_length - g_utf8_strlen(inserttext, -1), ' ');
+ text = g_strconcat(inserttext, blanks, NULL);
+ g_free(blanks);
+ }
+
+ /* Erase the text currently in the input field and replace it with blanks or the insert text, with the editable "input_field" tag */
+ GtkTextIter text_start, text_end;
+ GtkTextTag *uneditable = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "uneditable");
+ gtk_text_buffer_delete(buffer, &start_iter, &end_iter);
+ gtk_text_buffer_get_start_iter(buffer, &text_start);
+ gtk_text_buffer_apply_tag(buffer, uneditable, &text_start, &start_iter);
+ gtk_text_buffer_insert_with_tags_by_name(buffer, &start_iter, text, -1, "input_field", NULL);
+ g_free(text);
+ gtk_text_buffer_get_end_iter(buffer, &text_end);
+ gtk_text_buffer_apply_tag(buffer, uneditable, &start_iter, &text_end);
- /* Set the entire contents of the window_buffer as uneditable
- * (so input can only be entered at the end) */
- GtkTextIter start_iter;
- gtk_text_buffer_get_start_iter(window_buffer, &start_iter);
- gtk_text_buffer_remove_tag_by_name(window_buffer, "uneditable", &start_iter, &end_iter);
- gtk_text_buffer_apply_tag_by_name(window_buffer, "uneditable", &start_iter, &end_iter);
-
- /* Insert pre-entered text if needed */
- if(insert)
- gtk_text_buffer_insert(window_buffer, &end_iter, inserttext, -1);
-
- /* Scroll to input point */
- gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(win->widget), input_position);
- g_signal_handler_unblock( G_OBJECT(window_buffer), win->insert_text_handler );
- gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), TRUE);
+ gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), TRUE);
+ g_signal_handler_unblock(GTK_TEXT_VIEW(win->widget), win->insert_text_handler);
+ }
+ else if(win->type == wintype_TextBuffer)
+ {
+ /* Move the input_position mark to the end of the window_buffer */
+ GtkTextMark *input_position = gtk_text_buffer_get_mark(buffer, "input_position");
+ GtkTextIter end_iter;
+ gtk_text_buffer_get_end_iter(buffer, &end_iter);
+ gtk_text_buffer_move_mark(buffer, input_position, &end_iter);
+
+ /* Set the entire contents of the window_buffer as uneditable
+ * (so input can only be entered at the end) */
+ GtkTextIter start_iter;
+ gtk_text_buffer_get_start_iter(buffer, &start_iter);
+ gtk_text_buffer_remove_tag_by_name(buffer, "uneditable", &start_iter, &end_iter);
+ gtk_text_buffer_apply_tag_by_name(buffer, "uneditable", &start_iter, &end_iter);
+
+ /* Insert pre-entered text if needed */
+ if(insert)
+ gtk_text_buffer_insert(buffer, &end_iter, inserttext, -1);
+
+ /* Scroll to input point */
+ gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(win->widget), input_position);
+
+ gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), TRUE);
+ g_signal_handler_unblock(buffer, win->insert_text_handler);
+ }
}
/**
win->line_input_buffer_max_len = maxlen;
gchar *inserttext = (initlen > 0)? g_strndup(buf, initlen) : g_strdup("");
- request_line_event_common(win, (initlen > 0), inserttext);
+ request_line_event_common(win, maxlen, (initlen > 0), inserttext);
g_free(inserttext);
}
else
utf8 = g_strdup("");
- request_line_event_common(win, (initlen > 0), utf8);
+ request_line_event_common(win, maxlen, (initlen > 0), utf8);
g_free(utf8);
}
-/* Internal function: Callback for signal key-press-event on a text buffer
-window. */
+/* Internal function: Callback for signal key-press-event on a text buffer or text grid window. */
gboolean
on_window_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t win)
-{
+{
if(win->input_request_type != INPUT_REQUEST_CHARACTER &&
win->input_request_type != INPUT_REQUEST_CHARACTER_UNICODE)
return FALSE;
return TRUE;
}
-/* Internal function: Callback for signal insert-text on a text buffer window.
-Not used; cannot modify the text buffer from within the callback?? Segfault! */
-/*void
-on_window_insert_text(GtkTextBuffer *textbuffer, GtkTextIter *location, gchar *text, gint len, gpointer user_data)
+/* Internal function: finish handling a line input request, for both text grid and text buffer windows. */
+static void
+end_line_input_request(winid_t win, gchar *inserted_text)
{
- gchar *newline_pos = strchr(text, '\n');
- if(newline_pos != NULL) {
- printf("position: %d\n", newline_pos-text);
- *newline_pos = 'a';
- }
-}*/
+ /* Convert the string from UTF-8 to Latin-1 or Unicode */
+ if(win->input_request_type == INPUT_REQUEST_LINE)
+ {
+ GError *error = NULL;
+ gchar *latin1;
+ gsize bytes_written;
+ latin1 = g_convert_with_fallback(inserted_text, -1, "ISO-8859-1", "UTF-8", "?", NULL, &bytes_written, &error);
+
+ if(latin1 == NULL)
+ {
+ g_warning("Error during utf8->latin1 conversion: %s", error->message);
+ event_throw(evtype_LineInput, win, 0, 0);
+ return;
+ }
+
+ /* Place input in the echo stream */
+ if(win->echo_stream != NULL)
+ glk_put_string_stream(win->echo_stream, latin1);
+
+ /* Copy the string (but not the NULL at the end) */
+ int copycount = MIN(win->line_input_buffer_max_len, bytes_written - 1);
+ memcpy(win->line_input_buffer, latin1, copycount);
+ g_free(latin1);
+ event_throw(evtype_LineInput, win, copycount, 0);
+ }
+ else if(win->input_request_type == INPUT_REQUEST_LINE_UNICODE)
+ {
+ gunichar *unicode;
+ glong items_written;
+ unicode = g_utf8_to_ucs4_fast(inserted_text, -1, &items_written);
+
+ if(unicode == NULL)
+ {
+ g_warning("Error during utf8->unicode conversion");
+ event_throw(evtype_LineInput, win, 0, 0);
+ return;
+ }
+
+ /* Place input in the echo stream */
+ /* TODO: fixme
+ if(win->echo_stream != NULL)
+ glk_put_string_stream_uni(window->echo_stream, unicode);*/
+
+ /* Copy the string (but not the NULL at the end) */
+ int copycount = MIN(win->line_input_buffer_max_len, items_written);
+ memcpy(win->line_input_buffer_unicode, unicode, copycount * sizeof(gunichar));
+ g_free(unicode);
+ event_throw(evtype_LineInput, win, copycount, 0);
+ }
+ else
+ g_warning("%s: Wrong input request type.", __func__);
+
+ win->input_request_type = INPUT_REQUEST_NONE;
+}
+
+
+/* Internal function: Callback for signal key-press-event on a text grid window. Only unblocked during line input, so that we can catch the enter key before it inserts an enter into the window. */
+gboolean
+on_text_grid_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t win)
+{
+ g_return_val_if_fail(win->type == wintype_TextGrid, FALSE);
+ g_return_val_if_fail(win->input_request_type == INPUT_REQUEST_LINE || win->input_request_type == INPUT_REQUEST_LINE_UNICODE, FALSE);
+
+ if(event->keyval == GDK_Linefeed || event->keyval == GDK_Return || event->keyval == GDK_KP_Enter)
+ {
+ GtkTextBuffer *window_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(win->widget) );
+ GtkTextIter start_iter, end_iter;
+ g_signal_handler_block(GTK_TEXT_VIEW(win->widget), win->insert_text_handler);
+
+ /* Determine the bounds of the line input */
+ GtkTextMark *cursor = gtk_text_buffer_get_mark(window_buffer, "cursor_position");
+ gtk_text_buffer_get_iter_at_mark(window_buffer, &start_iter, cursor);
+ gint cursorpos = gtk_text_iter_get_line_offset(&start_iter);
+ gint input_length = MIN(win->width - 1 - cursorpos, win->line_input_buffer_max_len);
+ end_iter = start_iter;
+ gtk_text_iter_set_line_offset(&end_iter, cursorpos + input_length);
+
+ gchar *inserted_text = g_strchomp( gtk_text_buffer_get_text(window_buffer, &start_iter, &end_iter, FALSE) );
+
+ /* Make the buffer uneditable again and remove the special tags */
+ gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), FALSE);
+ gtk_text_buffer_get_start_iter(window_buffer, &start_iter);
+ gtk_text_buffer_get_end_iter(window_buffer, &end_iter);
+ gtk_text_buffer_remove_tag_by_name(window_buffer, "uneditable", &start_iter, &end_iter);
+ gtk_text_buffer_remove_tag_by_name(window_buffer, "input_field", &start_iter, &end_iter);
+
+ end_line_input_request(win, inserted_text);
+ g_free(inserted_text);
+
+ /* Block the enter key */
+ return TRUE;
+ }
+
+ return FALSE;
+}
/* Internal function: Callback for signal insert-text on a text buffer window.
Runs after the default handler has already inserted the text.*/
after_window_insert_text(GtkTextBuffer *textbuffer, GtkTextIter *location, gchar *text, gint len, winid_t win)
{
if( strchr(text, '\n') != NULL )
- {
- /* Make the window uneditable again and remove signal handlers */
+ {
+ /* Remove signal handlers */
GtkTextBuffer *window_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(win->widget) );
- gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), FALSE);
g_signal_handler_block(window_buffer, win->insert_text_handler);
+
+ /* Make the window uneditable again and retrieve the text that was input */
+ gchar *inserted_text;
+ GtkTextIter start_iter, end_iter;
- /* Retrieve the text that was input */
- GtkTextMark *input_position = gtk_text_buffer_get_mark(window_buffer, "input_position");
- GtkTextIter start_iter;
- GtkTextIter end_iter;
- gtk_text_buffer_get_iter_at_mark(window_buffer, &start_iter, input_position);
- gtk_text_buffer_get_end_iter(window_buffer, &end_iter);
- gchar *inserted_text = gtk_text_buffer_get_text(window_buffer, &start_iter, &end_iter, FALSE);
-
- /* Convert the string from UTF-8 to Latin-1 or Unicode */
- if(win->input_request_type == INPUT_REQUEST_LINE)
- {
- GError *error = NULL;
- gchar *latin1;
- gsize bytes_written;
- latin1 = g_convert_with_fallback(inserted_text, -1, "ISO-8859-1", "UTF-8", "?", NULL, &bytes_written, &error);
- g_free(inserted_text);
-
- if(latin1 == NULL)
- {
- g_warning("Error during utf8->latin1 conversion: %s", error->message);
- event_throw(evtype_LineInput, win, 0, 0);
- return;
- }
-
- /* Place input in the echo stream */
- if(win->echo_stream != NULL)
- glk_put_string_stream(win->echo_stream, latin1);
-
- /* Copy the string (but not the NULL at the end) */
- int copycount = MIN(win->line_input_buffer_max_len, bytes_written - 1);
- memcpy(win->line_input_buffer, latin1, copycount);
- g_free(latin1);
- event_throw(evtype_LineInput, win, copycount, 0);
- }
- else if(win->input_request_type == INPUT_REQUEST_LINE_UNICODE)
- {
- gunichar *unicode;
- glong items_written;
- unicode = g_utf8_to_ucs4_fast(inserted_text, -1, &items_written);
- g_free(inserted_text);
-
- if(unicode == NULL)
- {
- g_warning("Error during utf8->unicode conversion");
- event_throw(evtype_LineInput, win, 0, 0);
- return;
- }
-
- /* Place input in the echo stream */
- /* TODO: fixme
- if(win->echo_stream != NULL)
- glk_put_string_stream_uni(window->echo_stream, unicode);*/
-
- /* Copy the string (but not the NULL at the end) */
- int copycount = MIN(win->line_input_buffer_max_len, items_written);
- memcpy(win->line_input_buffer_unicode, unicode, copycount * sizeof(gunichar));
- g_free(unicode);
- event_throw(evtype_LineInput, win, copycount, 0);
- }
- else
- g_warning("%s: Wrong input request type.", __func__);
+ gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), FALSE);
+ GtkTextMark *input_position = gtk_text_buffer_get_mark(window_buffer, "input_position");
+ gtk_text_buffer_get_iter_at_mark(window_buffer, &start_iter, input_position);
+ gtk_text_buffer_get_end_iter(window_buffer, &end_iter);
+
+ inserted_text = gtk_text_buffer_get_text(window_buffer, &start_iter, &end_iter, FALSE);
- win->input_request_type = INPUT_REQUEST_NONE;
+ end_line_input_request(win, inserted_text);
+ g_free(inserted_text);
}
}
projects / projects / chimara / chimara.git / blobdiff