+#include "charset.h"
+#include "magic.h"
#include "input.h"
-/** glk_request_char_event:
- * @win: A window to request char events from Request
+/* Forward declarations */
+static int flush_text_buffer(winid_t win);
+static int flush_text_grid(winid_t win);
+
+/**
+ * glk_request_char_event:
+ * @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);
+ VALID_WINDOW(win, return);
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
+/**
+ * glk_request_char_event_uni:
+ * @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);
+ VALID_WINDOW(win, return);
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 );
}
+/**
+ * glk_cancel_char_event:
+ * @win: A window to cancel the latest char event request on.
+ *
+ * This cancels a pending request for character input. (Either Latin-1 or
+ * Unicode.) For convenience, it is legal to call glk_cancel_char_event() even
+ * if there is no charcter input request on that window. Glk will ignore the
+ * call in this case.
+ */
void
-glk_request_line_event(winid_t win, char* buf, glui32 maxlen, glui32 initlen)
+glk_cancel_char_event(winid_t win)
{
- GtkTextBuffer *window_buffer;
+ VALID_WINDOW(win, return);
+ g_return_if_fail(win->type != wintype_TextBuffer || win->type != wintype_TextGrid);
+
+ if(win->input_request_type == INPUT_REQUEST_CHARACTER || win->input_request_type == INPUT_REQUEST_CHARACTER_UNICODE)
+ {
+ win->input_request_type = INPUT_REQUEST_NONE;
+ g_signal_handler_block( G_OBJECT(win->widget), win->keypress_handler );
+ }
+}
- 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);
+/* Internal function: Request either latin-1 or unicode line input, in a text grid window. */
+static void
+text_grid_request_line_event_common(winid_t win, glui32 maxlen, gboolean insert, gchar *inserttext)
+{
+ GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(win->widget) );
+
+ 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);
+ /* Odd; the Glk spec says the maximum input length is
+ windowwidth - 1 - cursorposition. I say no, because if cursorposition is
+ zero, then the input should fill the whole line. FIXME??? */
+ win->input_length = MIN(win->width - cursorpos, win->line_input_buffer_max_len);
+ end_iter = start_iter;
+ gtk_text_iter_set_line_offset(&end_iter, cursorpos + win->input_length);
+
+ /* If the buffer currently has a selection with one bound in the middle of
+ the input field, then deselect it. Otherwise the input field gets trashed */
+ GtkTextIter start_sel, end_sel;
+ if( gtk_text_buffer_get_selection_bounds(buffer, &start_sel, &end_sel) )
+ {
+ if( gtk_text_iter_in_range(&start_sel, &start_iter, &end_iter) )
+ gtk_text_buffer_place_cursor(buffer, &end_sel);
+ if( gtk_text_iter_in_range(&end_sel, &start_iter, &end_iter) )
+ gtk_text_buffer_place_cursor(buffer, &start_sel);
+ }
+
+ /* Erase the text currently in the input field and replace it with a GtkEntry */
+ gtk_text_buffer_delete(buffer, &start_iter, &end_iter);
+ win->input_anchor = gtk_text_buffer_create_child_anchor(buffer, &start_iter);
+ win->input_entry = gtk_entry_new();
+ /* Set the entry's font to match that of the window */
+ GtkRcStyle *style = gtk_widget_get_modifier_style(win->widget); /* Don't free */
+ gtk_widget_modify_font(win->input_entry, style->font_desc);
+ /* Make the entry as small as possible to fit with the text */
+ gtk_entry_set_has_frame(GTK_ENTRY(win->input_entry), FALSE);
+ GtkBorder border = { 0, 0, 0, 0 };
+ gtk_entry_set_inner_border(GTK_ENTRY(win->input_entry), &border);
+ gtk_entry_set_max_length(GTK_ENTRY(win->input_entry), win->input_length);
+ gtk_entry_set_width_chars(GTK_ENTRY(win->input_entry), win->input_length);
+
+ /* Insert pre-entered text if needed */
+ if(insert)
+ gtk_entry_set_text(GTK_ENTRY(win->input_entry), inserttext);
+
+ /* Set background color of entry (TODO: implement as property) */
+ GdkColor background;
+ gdk_color_parse("grey", &background);
+ gtk_widget_modify_base(win->input_entry, GTK_STATE_NORMAL, &background);
+
+ g_signal_connect(win->input_entry, "activate", G_CALLBACK(on_input_entry_activate), win);
+
+ gtk_widget_show(win->input_entry);
+ gtk_text_view_add_child_at_anchor(GTK_TEXT_VIEW(win->widget), win->input_entry, win->input_anchor);
+
+ g_signal_handler_unblock( G_OBJECT(win->widget), win->keypress_handler );
+}
+
+/* Internal function: Request either latin-1 or unicode line input, in a text buffer window. */
+static void
+text_buffer_request_line_event_common(winid_t win, glui32 maxlen, gboolean insert, gchar *inserttext)
+{
+ 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(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);
+}
- window_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(win->widget));
+/**
+ * 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(winid_t win, char* buf, glui32 maxlen, glui32 initlen)
+{
+ VALID_WINDOW(win, return);
+ 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);
+ g_return_if_fail(initlen <= maxlen);
win->input_request_type = INPUT_REQUEST_LINE;
win->line_input_buffer = 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);
-
- if(initlen > 0) {
- gtk_text_buffer_insert(window_buffer, &end_iter, buf, initlen);
- }
-
- 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);
+ gchar *inserttext = (initlen > 0)? g_strndup(buf, initlen) : g_strdup("");
+ switch(win->type)
+ {
+ case wintype_TextBuffer:
+ text_buffer_request_line_event_common(win, maxlen, (initlen > 0), inserttext);
+ break;
+ case wintype_TextGrid:
+ text_grid_request_line_event_common(win, maxlen, (initlen > 0), inserttext);
+ break;
+ }
+ g_free(inserttext);
}
+/**
+ * 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)
{
- GtkTextBuffer *window_buffer;
-
- g_return_if_fail(win);
+ VALID_WINDOW(win, return);
+ 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);
-
- window_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(win->widget));
+ g_return_if_fail(win->type != wintype_TextBuffer || win->type != wintype_TextGrid);
+ g_return_if_fail(initlen <= maxlen);
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);
-
+ utf8 = convert_ucs4_to_utf8(buf, initlen);
if(utf8 == NULL)
- {
- error_dialog(NULL, error, "Error during unicode->utf8 conversion: ");
return;
- }
+ }
+ else
+ utf8 = g_strdup("");
+
+ switch(win->type)
+ {
+ case wintype_TextBuffer:
+ text_buffer_request_line_event_common(win, maxlen, (initlen > 0), utf8);
+ break;
+ case wintype_TextGrid:
+ text_grid_request_line_event_common(win, maxlen, (initlen > 0), utf8);
+ break;
+ }
+ g_free(utf8);
+}
- gtk_text_buffer_insert(window_buffer, &end_iter, utf8, -1);
- g_free(utf8);
+/**
+ * glk_cancel_line_event:
+ * @win: A text buffer or text grid window to cancel line input on.
+ * @event: Will be filled in if the user had already input something.
+ *
+ * This cancels a pending request for line input. (Either Latin-1 or Unicode.)
+ *
+ * The event pointed to by the event argument will be filled in as if the
+ * player had hit <keycap>enter</keycap>, and the input composed so far will be stored in the
+ * buffer; see below. If you do not care about this information, pass %NULL as
+ * the @event argument. (The buffer will still be filled.)
+ *
+ * For convenience, it is legal to call glk_cancel_line_event() even if there
+ * is no line input request on that window. The event type will be set to
+ * #evtype_None in this case.
+ */
+void
+glk_cancel_line_event(winid_t win, event_t *event)
+{
+ VALID_WINDOW(win, return);
+ g_return_if_fail(win->type != wintype_TextBuffer || win->type != wintype_TextGrid);
+
+ if(event != NULL) {
+ event->type = evtype_None;
+ event->win = win;
+ event->val1 = 0;
+ event->val2 = 0;
}
- 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);
-}
+ if(win->input_request_type == INPUT_REQUEST_NONE)
+ return;
+ g_signal_handler_block( G_OBJECT(win->widget), win->keypress_handler );
+ int chars_written = 0;
+
+ if(win->type == wintype_TextGrid) {
+ g_signal_handler_block( G_OBJECT(win->widget), win->keypress_handler );
+ chars_written = flush_text_grid(win);
+ } else if(win->type == wintype_TextBuffer) {
+ GtkTextBuffer *window_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(win->widget) );
+ g_signal_handler_block(window_buffer, win->insert_text_handler);
+ chars_written = flush_text_buffer(win);
+ }
+ if(event != NULL && chars_written > 0) {
+ event->type = evtype_LineInput;
+ event->val1 = chars_written;
+ }
+}
+
+/* Internal function: General callback for signal key-press-event on a text buffer or text grid window. Used in character input on both text buffers and grids, and also in line input on grids, to redirect keystrokes to the line input field. Blocked when not in use. */
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) {
- return FALSE;
+ /* If this is a text grid window, and line input is active, then redirect the key press to the line input GtkEntry */
+ if( win->type == wintype_TextGrid && (win->input_request_type == INPUT_REQUEST_LINE || win->input_request_type == INPUT_REQUEST_LINE_UNICODE) )
+ {
+ if(event->keyval == GDK_Up || event->keyval == GDK_KP_Up
+ || event->keyval == GDK_Down || event->keyval == GDK_KP_Down
+ || event->keyval == GDK_Left || event->keyval == GDK_KP_Left
+ || event->keyval == GDK_Right || event->keyval == GDK_KP_Right
+ || event->keyval == GDK_Tab || event->keyval == GDK_KP_Tab
+ || event->keyval == GDK_Page_Up || event->keyval == GDK_KP_Page_Up
+ || event->keyval == GDK_Page_Down || event->keyval == GDK_KP_Page_Down
+ || event->keyval == GDK_Home || event->keyval == GDK_KP_Home
+ || event->keyval == GDK_End || event->keyval == GDK_KP_End)
+ return FALSE; /* Don't redirect these keys */
+ gtk_widget_grab_focus(win->input_entry);
+ gtk_editable_set_position(GTK_EDITABLE(win->input_entry), -1);
+ gboolean retval = TRUE;
+ g_signal_emit_by_name(win->input_entry, "key-press-event", event, &retval);
+ return retval; /* Block this key event if the entry handled it */
}
+ 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;
}
+/* Internal function: finish handling a line input request, for both text grid and text buffer windows. */
+static int
+write_to_window_buffer(winid_t win, const gchar *inserted_text)
+{
+ int copycount = 0;
+
+ /* Convert the string from UTF-8 to Latin-1 or Unicode */
+ if(win->input_request_type == INPUT_REQUEST_LINE)
+ {
+ gsize bytes_written;
+ gchar *latin1 = convert_utf8_to_latin1(inserted_text, &bytes_written);
+
+ if(latin1 == NULL)
+ return 0;
+
+ /* Place input in the echo stream */
+ if(win->echo_stream != NULL)
+ glk_put_string_stream(win->echo_stream, latin1);
+
+ /* Copy the string (bytes_written does not include the NULL at the end) */
+ copycount = MIN(win->line_input_buffer_max_len, bytes_written);
+ memcpy(win->line_input_buffer, latin1, copycount);
+ g_free(latin1);
+ }
+ else if(win->input_request_type == INPUT_REQUEST_LINE_UNICODE)
+ {
+ glong items_written;
+ gunichar *unicode = convert_utf8_to_ucs4(inserted_text, &items_written);
+
+ if(unicode == NULL)
+ return 0;
+
+ /* Place input in the echo stream */
+ if(win->echo_stream != NULL)
+ glk_put_string_stream_uni(win->echo_stream, unicode);
+
+ /* Copy the string (but not the NULL at the end) */
+ copycount = MIN(win->line_input_buffer_max_len, items_written);
+ memcpy(win->line_input_buffer_unicode, unicode, copycount * sizeof(gunichar));
+ g_free(unicode);
+ }
+ else
+ WARNING("Wrong input request type");
+
+ win->input_request_type = INPUT_REQUEST_NONE;
+ return copycount;
+}
+
+/* Internal function: Retrieves the input of a TextBuffer window and stores it in the window buffer.
+ * Returns the number of characters written, suitable for inclusion in a line input event. */
+static int
+flush_text_buffer(winid_t win)
+{
+ VALID_WINDOW(win, return 0);
+ g_return_val_if_fail(win->type == wintype_TextBuffer, 0);
+
+ GtkTextIter start_iter, end_iter, last_character;
+
+ GtkTextBuffer *window_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(win->widget) );
+ 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);
+ gtk_text_buffer_get_end_iter(window_buffer, &last_character);
+ gtk_text_iter_backward_cursor_position(&last_character);
+
+ gchar* last_char = gtk_text_buffer_get_text(window_buffer, &last_character, &end_iter, FALSE);
+
+ if( strchr(last_char, '\n') != NULL )
+ gtk_text_iter_backward_cursor_position(&end_iter);
+
+ gchar* inserted_text = gtk_text_buffer_get_text(window_buffer, &start_iter, &end_iter, FALSE);
+
+ int chars_written = write_to_window_buffer(win, inserted_text);
+ g_free(inserted_text);
+
+ return chars_written;
+}
+
+/* Internal function: Retrieves the input of a TextGrid window and stores it in the window buffer.
+ * Returns the number of characters written, suitable for inclusion in a line input event. */
+static int
+flush_text_grid(winid_t win)
+{
+ VALID_WINDOW(win, return 0);
+ g_return_val_if_fail(win->type == wintype_TextBuffer, 0);
+
+ GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(win->widget) );
+
+ gchar *text = g_strdup( gtk_entry_get_text(GTK_ENTRY(win->input_entry)) );
+ /* Move the focus back into the text view */
+ gtk_widget_grab_focus(win->widget);
+ /* Remove entry widget from text view */
+ /* Should be ok even though this is the widget's own signal handler */
+ gtk_container_remove( GTK_CONTAINER(win->widget), GTK_WIDGET(win->input_entry) );
+ win->input_entry = NULL;
+ /* Delete the child anchor */
+ GtkTextIter start, end;
+ gtk_text_buffer_get_iter_at_child_anchor(buffer, &start, win->input_anchor);
+ end = start;
+ gtk_text_iter_forward_char(&end); /* Point after the child anchor */
+ gtk_text_buffer_delete(buffer, &start, &end);
+ win->input_anchor = NULL;
+
+ gchar *spaces = g_strnfill(win->input_length - g_utf8_strlen(text, -1), ' ');
+ gchar *text_to_insert = g_strconcat(text, spaces, NULL);
+ g_free(spaces);
+ gtk_text_buffer_insert(buffer, &start, text_to_insert, -1);
+ g_free(text_to_insert);
+
+ int chars_written = write_to_window_buffer(win, text);
+ g_free(text);
+
+ return chars_written;
+}
+
+/* Internal function: Callback for signal insert-text on a text buffer window.
+Runs after the default handler has already inserted the text.
+FIXME: This function assumes that newline was the last character typed into the
+window. That assumption is wrong if, for example, text containing a newline was
+pasted into the window. */
void
-on_window_insert_text(GtkTextBuffer *textbuffer, GtkTextIter *location, gchar *text, gint len, gpointer user_data)
+after_window_insert_text(GtkTextBuffer *textbuffer, GtkTextIter *location, gchar *text, gint len, winid_t win)
{
- gchar *newline_pos = strchr(text, '\n');
- if(newline_pos != NULL) {
- printf("position: %d\n", newline_pos-text);
- *newline_pos = 'a';
+ if( strchr(text, '\n') != NULL )
+ {
+ /* Remove signal handlers */
+ GtkTextBuffer *window_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(win->widget) );
+ g_signal_handler_block(window_buffer, win->insert_text_handler);
+
+ /* Make the window uneditable again and retrieve the text that was input */
+ gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), FALSE);
+
+ int chars_written = flush_text_buffer(win);
+ event_throw(evtype_LineInput, win, chars_written, 0);
}
}
+/* Internal function: Callback for signal activate on the line input GtkEntry
+in a text grid window. */
void
-after_window_insert_text(GtkTextBuffer *textbuffer, GtkTextIter *location, gchar *text, gint len, winid_t window)
+on_input_entry_activate(GtkEntry *input_entry, winid_t win)
{
- 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);
-
- /* 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(window->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)
- {
- error_dialog(NULL, error, "Error during utf8->latin1 conversion: ");
- event_throw(evtype_LineInput, window, 0, 0);
- return;
- }
-
- /* Place input in the echo stream */
- if(window->echo_stream != NULL)
- glk_put_string_stream(window->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));
- g_free(latin1);
- event_throw(evtype_LineInput, window, MIN(window->line_input_buffer_max_len, bytes_written-1), 0);
- }
- else if(window->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)
- {
- error_dialog(NULL, NULL, "Error during utf8->unicode conversion");
- event_throw(evtype_LineInput, window, 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);
-
- /* 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));
- g_free(unicode);
- event_throw(evtype_LineInput, window, MIN(window->line_input_buffer_max_len, items_written), 0);
- }
- else {
- g_warning("%s: Wrong input request type.", __func__);
- }
-
- window->input_request_type = INPUT_REQUEST_NONE;
- }
+ g_signal_handler_block( G_OBJECT(win->widget), win->keypress_handler );
+
+ int chars_written = flush_text_grid(win);
+ event_throw(evtype_LineInput, win, chars_written, 0);
}
+
projects / projects / chimara / chimara.git / blobdiff