#include "input.h"
/** glk_request_char_event:
- * @win: A window to request char events from Request
+ * @win: A window to request char events from.
*
- * Request input of a Latin-1 character or special key. A window cannot have requests
- * for both character and line input at the same time. Nor can it have requests
- * for character input of both types (Latin-1 and Unicode). It is illegal to
- * call glk_request_char_event() if the window already has a pending request
- * for either character or line input.
+ * Request input of a Latin-1 character or special key. A window cannot have
+ * requests for both character and line input at the same time. Nor can it have
+ * requests for character input of both types (Latin-1 and Unicode). It is
+ * illegal to call glk_request_char_event() if the window already has a pending
+ * request for either character or line input.
*/
void
glk_request_char_event(winid_t win)
{
g_return_if_fail(win);
g_return_if_fail(win->input_request_type == INPUT_REQUEST_NONE);
- g_return_if_fail(win->window_type != wintype_TextBuffer || win->window_type != wintype_TextGrid);
+ g_return_if_fail(win->type != wintype_TextBuffer || win->type != wintype_TextGrid);
win->input_request_type = INPUT_REQUEST_CHARACTER;
g_signal_handler_unblock( G_OBJECT(win->widget), win->keypress_handler );
}
/** glk_request_char_event_uni:
- * @win: A window to request char events from Request
+ * @win: A window to request char events from.
*
- * Request input of a Unicode character or special key. A window cannot have requests
- * for both character and line input at the same time. Nor can it have requests
- * for character input of both types (Latin-1 and Unicode). It is illegal to
- * call glk_request_char_event_uni() if the window already has a pending request
- * for either character or line input.
+ * Request input of a Unicode character or special key. See
+ * glk_request_char_event().
*/
void
glk_request_char_event_uni(winid_t win)
{
g_return_if_fail(win);
g_return_if_fail(win->input_request_type == INPUT_REQUEST_NONE);
- g_return_if_fail(win->window_type != wintype_TextBuffer || win->window_type != wintype_TextGrid);
+ g_return_if_fail(win->type != wintype_TextBuffer || win->type != wintype_TextGrid);
win->input_request_type = INPUT_REQUEST_CHARACTER_UNICODE;
g_signal_handler_unblock( G_OBJECT(win->widget), win->keypress_handler );
}
+/* Internal function: Request either latin-1 or unicode line input. */
void
-glk_request_line_event(winid_t win, char* buf, glui32 maxlen, glui32 initlen)
+request_line_event_common(winid_t win, gboolean insert, gchar *inserttext)
{
- GtkTextBuffer *window_buffer;
-
- g_return_if_fail(win);
- g_return_if_fail(win->input_request_type == INPUT_REQUEST_NONE);
- g_return_if_fail(win->window_type != wintype_TextBuffer || win->window_type != wintype_TextGrid);
-
- window_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(win->widget));
-
- win->input_request_type = INPUT_REQUEST_LINE;
- win->line_input_buffer = buf;
- win->line_input_buffer_max_len = maxlen;
+ GtkTextBuffer *window_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");
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);
-
- if(initlen > 0) {
- gtk_text_buffer_insert(window_buffer, &end_iter, buf, initlen);
- }
-
+
+ /* 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);
}
+/**
+ * glk_request_line_event:
+ * @win: A text buffer or text grid window to request line input on.
+ * @buf: A buffer of at least @maxlen bytes.
+ * @maxlen: Length of the buffer.
+ * @initlen: The number of characters in @buf to pre-enter.
+ *
+ * Requests input of a line of Latin-1 characters. A window cannot have requests
+ * for both character and line input at the same time. Nor can it have requests
+ * for line input of both types (Latin-1 and Unicode). It is illegal to call
+ * glk_request_line_event() if the window already has a pending request for
+ * either character or line input.
+ *
+ * The @buf argument is a pointer to space where the line input will be stored.
+ * (This may not be %NULL.) @maxlen is the length of this space, in bytes; the
+ * library will not accept more characters than this. If @initlen is nonzero,
+ * then the first @initlen bytes of @buf will be entered as pre-existing input
+ * -- just as if the player had typed them himself. (The player can continue
+ * composing after this pre-entered input, or delete it or edit as usual.)
+ *
+ * The contents of the buffer are undefined until the input is completed (either
+ * by a line input event, or glk_cancel_line_event(). The library may or may not
+ * fill in the buffer as the player composes, while the input is still pending;
+ * it is illegal to change the contents of the buffer yourself.
+ */
void
-glk_request_line_event_uni(winid_t win, glui32 *buf, glui32 maxlen, glui32 initlen)
+glk_request_line_event(winid_t win, char* buf, glui32 maxlen, glui32 initlen)
{
- GtkTextBuffer *window_buffer;
-
g_return_if_fail(win);
+ g_return_if_fail(buf);
g_return_if_fail(win->input_request_type == INPUT_REQUEST_NONE);
- g_return_if_fail(win->window_type != wintype_TextBuffer || win->window_type != wintype_TextGrid);
+ g_return_if_fail(win->type != wintype_TextBuffer || win->type != wintype_TextGrid);
+
+ win->input_request_type = INPUT_REQUEST_LINE;
+ win->line_input_buffer = buf;
+ 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);
+ g_free(inserttext);
+}
- window_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(win->widget));
+/**
+ * glk_request_line_event_uni:
+ * @win: A text buffer or text grid window to request line input on.
+ * @buf: A buffer of at least @maxlen characters.
+ * @maxlen: Length of the buffer.
+ * @initlen: The number of characters in @buf to pre-enter.
+ *
+ * Request input of a line of Unicode characters. This works the same as
+ * glk_request_line_event(), except the result is stored in an array of
+ * <type>glui32</type> values instead of an array of characters, and the values
+ * may be any valid Unicode code points.
+ *
+ * The result will be in Unicode Normalization Form C. This basically means that
+ * composite characters will be single characters where possible, instead of
+ * sequences of base and combining marks. See
+ * <ulink url="http://www.unicode.org/reports/tr15/">Unicode Standard Annex #15
+ * </ulink> for the details.
+ */
+void
+glk_request_line_event_uni(winid_t win, glui32 *buf, glui32 maxlen, glui32 initlen)
+{
+ g_return_if_fail(win);
+ g_return_if_fail(buf);
+ g_return_if_fail(win->input_request_type == INPUT_REQUEST_NONE);
+ g_return_if_fail(win->type != wintype_TextBuffer || win->type != wintype_TextGrid);
win->input_request_type = INPUT_REQUEST_LINE_UNICODE;
win->line_input_buffer_unicode = buf;
win->line_input_buffer_max_len = maxlen;
- /* 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);
-
- /* 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);
-
+ gchar *utf8;
if(initlen > 0) {
GError *error = NULL;
- gchar *utf8;
utf8 = g_ucs4_to_utf8(buf, initlen, NULL, NULL, &error);
if(utf8 == NULL)
error_dialog(NULL, error, "Error during unicode->utf8 conversion: ");
return;
}
-
- gtk_text_buffer_insert(window_buffer, &end_iter, utf8, -1);
- g_free(utf8);
}
+ else
+ utf8 = g_strdup("");
- 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);
+ request_line_event_common(win, (initlen > 0), utf8);
+ g_free(utf8);
}
-
-
+/* Internal function: Callback for signal key-press-event on a text buffer
+window. */
gboolean
-on_window_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t window)
+on_window_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t win)
{
- if(window->input_request_type != INPUT_REQUEST_CHARACTER &&
- window->input_request_type != INPUT_REQUEST_CHARACTER_UNICODE) {
+ if(win->input_request_type != INPUT_REQUEST_CHARACTER &&
+ win->input_request_type != INPUT_REQUEST_CHARACTER_UNICODE)
return FALSE;
- }
int keycode;
case GDK_KP_Left: keycode = keycode_Left; break;
case GDK_Right:
case GDK_KP_Right: keycode = keycode_Right; break;
+ case GDK_Linefeed:
case GDK_Return:
case GDK_KP_Enter: keycode = keycode_Return; break;
case GDK_Delete:
case GDK_BackSpace:
case GDK_KP_Delete: keycode = keycode_Delete; break;
case GDK_Escape: keycode = keycode_Escape; break;
- case GDK_Tab: keycode = keycode_Tab; break;
+ case GDK_Tab:
+ case GDK_KP_Tab: keycode = keycode_Tab; break;
case GDK_Page_Up:
case GDK_KP_Page_Up: keycode = keycode_PageUp; break;
case GDK_Page_Down:
case GDK_KP_Home: keycode = keycode_Home; break;
case GDK_End:
case GDK_KP_End: keycode = keycode_End; break;
- case GDK_F1: keycode = keycode_Func1; break;
- case GDK_F2: keycode = keycode_Func2; break;
- case GDK_F3: keycode = keycode_Func3; break;
- case GDK_F4: keycode = keycode_Func4; break;
+ case GDK_F1:
+ case GDK_KP_F1: keycode = keycode_Func1; break;
+ case GDK_F2:
+ case GDK_KP_F2: keycode = keycode_Func2; break;
+ case GDK_F3:
+ case GDK_KP_F3: keycode = keycode_Func3; break;
+ case GDK_F4:
+ case GDK_KP_F4: keycode = keycode_Func4; break;
case GDK_F5: keycode = keycode_Func5; break;
case GDK_F6: keycode = keycode_Func6; break;
case GDK_F7: keycode = keycode_Func7; break;
case GDK_F12: keycode = keycode_Func12; break;
default:
keycode = gdk_keyval_to_unicode(event->keyval);
+ /* If keycode is 0, then keyval was not recognized; also return
+ unknown if Latin-1 input was requested and the character is not in
+ Latin-1 */
+ if(keycode == 0 || (win->input_request_type == INPUT_REQUEST_CHARACTER && keycode > 255))
+ keycode = keycode_Unknown;
}
- if(window->input_request_type == INPUT_REQUEST_CHARACTER) {
- if(keycode >= 1 || keycode <= 255) {
- event_throw(evtype_CharInput, window, keycode, 0);
- } else {
- event_throw(evtype_CharInput, window, keycode_Unknown, 0);
- }
- } else {
- if(keycode == 0) {
- event_throw(evtype_CharInput, window, keycode_Unknown, 0);
- } else {
- event_throw(evtype_CharInput, window, keycode, 0);
- }
- }
-
+ event_throw(evtype_CharInput, win, keycode, 0);
+
/* Only one keypress will be handled */
- window->input_request_type = INPUT_REQUEST_NONE;
- g_signal_handler_block( G_OBJECT(window->widget), window->keypress_handler );
+ win->input_request_type = INPUT_REQUEST_NONE;
+ g_signal_handler_block( G_OBJECT(win->widget), win->keypress_handler );
return TRUE;
}
-void
+/* 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)
{
gchar *newline_pos = strchr(text, '\n');
printf("position: %d\n", newline_pos-text);
*newline_pos = 'a';
}
-}
+}*/
+/* Internal function: Callback for signal insert-text on a text buffer window.
+Runs after the default handler has already inserted the text.*/
void
-after_window_insert_text(GtkTextBuffer *textbuffer, GtkTextIter *location, gchar *text, gint len, winid_t window)
+after_window_insert_text(GtkTextBuffer *textbuffer, GtkTextIter *location, gchar *text, gint len, winid_t win)
{
- if( strchr(text, '\n') != NULL) {
+ if( strchr(text, '\n') != NULL )
+ {
/* Make the window uneditable again and remove signal handlers */
- GtkTextBuffer *window_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(window->widget));
- gtk_text_view_set_editable(GTK_TEXT_VIEW(window->widget), FALSE);
- g_signal_handler_block(window_buffer, window->insert_text_handler);
+ 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);
/* Retrieve the text that was input */
GtkTextMark *input_position = gtk_text_buffer_get_mark(window_buffer, "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(window->input_request_type == INPUT_REQUEST_LINE) {
+ if(win->input_request_type == INPUT_REQUEST_LINE)
+ {
GError *error = NULL;
gchar *latin1;
gsize bytes_written;
if(latin1 == NULL)
{
error_dialog(NULL, error, "Error during utf8->latin1 conversion: ");
- event_throw(evtype_LineInput, window, 0, 0);
+ event_throw(evtype_LineInput, win, 0, 0);
return;
}
/* Place input in the echo stream */
- if(window->echo_stream != NULL)
- glk_put_string_stream(window->echo_stream, latin1);
+ if(win->echo_stream != NULL)
+ glk_put_string_stream(win->echo_stream, latin1);
/* Copy the string (but not the NULL at the end) */
- memcpy(window->line_input_buffer, latin1, MIN(window->line_input_buffer_max_len, bytes_written-1));
+ 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, window, MIN(window->line_input_buffer_max_len, bytes_written-1), 0);
+ event_throw(evtype_LineInput, win, copycount, 0);
}
- else if(window->input_request_type == INPUT_REQUEST_LINE_UNICODE) {
+ 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)
{
error_dialog(NULL, NULL, "Error during utf8->unicode conversion");
- event_throw(evtype_LineInput, window, 0, 0);
+ event_throw(evtype_LineInput, win, 0, 0);
return;
}
/* Place input in the echo stream */
- // TODO: fixme
- // if(window->echo_stream != NULL)
- // glk_put_string_stream_uni(window->echo_stream, unicode);
+ /* 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) */
- memcpy(window->line_input_buffer_unicode, unicode, MIN(window->line_input_buffer_max_len, items_written)*sizeof(gunichar));
+ 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, window, MIN(window->line_input_buffer_max_len, items_written), 0);
+ event_throw(evtype_LineInput, win, copycount, 0);
}
- else {
+ else
g_warning("%s: Wrong input request type.", __func__);
- }
- window->input_request_type = INPUT_REQUEST_NONE;
+ win->input_request_type = INPUT_REQUEST_NONE;
}
}
projects / rodin / chimara.git / blobdiff