#include <config.h>
#include "locale.h"
#include <string.h>
+#include <stdlib.h>
#include "gtk/gtkintl.h"
#include "gtk/gtklabel.h"
XIMCallback status_done_callback;
XIMCallback status_draw_callback;
+ XICCallback string_conversion_callback;
+
XIC ic;
guint filter_key_release : 1;
GSList *ics;
guint reconnecting :1;
+ guint supports_string_conversion;
};
/* A context status window; these are kept in the status_windows list. */
G_CALLBACK (preedit_style_change),
info);
- status_style_change (info);
- preedit_style_change (info);
-
-#if 0
+ info->supports_string_conversion = FALSE;
if (ic_values)
{
+ int i;
+
+ for (i = 0; i < ic_values->count_values; i++)
+ if (strcmp (ic_values->supported_values[i],
+ XNStringConversionCallback) == 0)
+ {
+ info->supports_string_conversion = TRUE;
+ break;
+ }
+
+#if 0
for (i = 0; i < ic_values->count_values; i++)
g_print ("%s\n", ic_values->supported_values[i]);
for (i = 0; i < xim_styles->count_styles; i++)
g_print ("%#x\n", xim_styles->supported_styles[i]);
- }
#endif
+
+ XFree (ic_values);
+ }
- if (ic_values)
- XFree (ic_values);
+ status_style_change (info);
+ preedit_style_change (info);
}
static void
}
}
+static void
+string_conversion_callback (XIC xic, XPointer client_data, XPointer call_data)
+{
+ GtkIMContextXIM *context_xim;
+ XIMStringConversionCallbackStruct *conv_data;
+ gchar *surrounding;
+ gint cursor_index;
+
+ context_xim = (GtkIMContextXIM *)client_data;
+ conv_data = (XIMStringConversionCallbackStruct *)call_data;
+
+ if (gtk_im_context_get_surrounding ((GtkIMContext *)context_xim,
+ &surrounding, &cursor_index))
+ {
+ gchar *text = NULL;
+ gsize text_len = 0;
+ gint subst_offset = 0, subst_nchars = 0;
+ gint i;
+ gchar *p = surrounding + cursor_index, *q;
+ gshort position = (gshort)conv_data->position;
+
+ if (position > 0)
+ {
+ for (i = position; i > 0 && *p; --i)
+ p = g_utf8_next_char (p);
+ if (i > 0)
+ return;
+ }
+ /* According to X11R6.4 Xlib - C Library Reference Manual
+ * section 13.5.7.3 String Conversion Callback,
+ * XIMStringConversionPosition is starting position _relative_
+ * to current client's cursor position. So it should be able
+ * to be negative, or referring to a position before the cursor
+ * would be impossible. But current X protocol defines this as
+ * unsigned short. So, compiler may warn about the value range
+ * here. We hope the X protocol is fixed soon.
+ */
+ else if (position < 0)
+ {
+ for (i = position; i < 0 && p > surrounding; ++i)
+ p = g_utf8_prev_char (p);
+ if (i < 0)
+ return;
+ }
+
+ switch (conv_data->direction)
+ {
+ case XIMForwardChar:
+ for (i = conv_data->factor, q = p; i > 0 && *q; --i)
+ q = g_utf8_next_char (q);
+ if (i > 0)
+ break;
+ text = g_locale_from_utf8 (p, q - p, NULL, &text_len, NULL);
+ subst_offset = position;
+ subst_nchars = conv_data->factor;
+ break;
+
+ case XIMBackwardChar:
+ for (i = conv_data->factor, q = p; i > 0 && q > surrounding; --i)
+ q = g_utf8_prev_char (q);
+ if (i > 0)
+ break;
+ text = g_locale_from_utf8 (q, p - q, NULL, &text_len, NULL);
+ subst_offset = position - conv_data->factor;
+ subst_nchars = conv_data->factor;
+ break;
+
+ case XIMForwardWord:
+ case XIMBackwardWord:
+ case XIMCaretUp:
+ case XIMCaretDown:
+ case XIMNextLine:
+ case XIMPreviousLine:
+ case XIMLineStart:
+ case XIMLineEnd:
+ case XIMAbsolutePosition:
+ case XIMDontChange:
+ default:
+ break;
+ }
+ /* block out any failure happenning to "text", including conversion */
+ if (text)
+ {
+ conv_data->text = (XIMStringConversionText *)
+ malloc (sizeof (XIMStringConversionText));
+ if (conv_data->text)
+ {
+ conv_data->text->length = text_len;
+ conv_data->text->feedback = NULL;
+ conv_data->text->encoding_is_wchar = False;
+ conv_data->text->string.mbs = (char *)malloc (text_len);
+ if (conv_data->text->string.mbs)
+ memcpy (conv_data->text->string.mbs, text, text_len);
+ else
+ {
+ free (conv_data->text);
+ conv_data->text = NULL;
+ }
+ }
+
+ g_free (text);
+ }
+ if (conv_data->operation == XIMStringConversionSubstitution
+ && subst_nchars > 0)
+ {
+ gtk_im_context_delete_surrounding ((GtkIMContext *)context_xim,
+ subst_offset, subst_nchars);
+ }
+
+ g_free (surrounding);
+ }
+}
+
+
static XVaNestedList
set_preedit_callback (GtkIMContextXIM *context_xim)
{
}
+static void
+set_string_conversion_callback (GtkIMContextXIM *context_xim, XIC xic)
+{
+ if (!context_xim->im_info->supports_string_conversion)
+ return;
+
+ context_xim->string_conversion_callback.client_data = (XPointer)context_xim;
+ context_xim->string_conversion_callback.callback = (XICProc)string_conversion_callback;
+
+ XSetICValues (xic,
+ XNStringConversionCallback,
+ (XPointer)&context_xim->string_conversion_callback,
+ NULL);
+}
+
static XIC
gtk_im_context_xim_get_ic (GtkIMContextXIM *context_xim)
{
XNFilterEvents, &mask,
NULL);
context_xim->filter_key_release = (mask & KeyReleaseMask) != 0;
+ set_string_conversion_callback (context_xim, xic);
}
context_xim->ic = xic;
projects / ~andy / gtk / commitdiff