+// ----------------------------------------------------------------------------
+// helpers
+// ----------------------------------------------------------------------------
+
+extern "C" {
+static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
+ GtkTextTag *tag,
+ GtkTextIter * WXUNUSED(start),
+ GtkTextIter * WXUNUSED(end),
+ char *prefix)
+{
+ gchar *name;
+ g_object_get (tag, "name", &name, NULL);
+
+ if (!name || strncmp(name, prefix, strlen(prefix)))
+ // anonymous tag or not starting with prefix - don't remove
+ g_signal_stop_emission_by_name (buffer, "remove_tag");
+
+ g_free(name);
+}
+}
+
+// remove all tags starting with the given prefix from the start..end range
+static void
+wxGtkTextRemoveTagsWithPrefix(GtkTextBuffer *text_buffer,
+ const char *prefix,
+ GtkTextIter *start,
+ GtkTextIter *end)
+{
+ gulong remove_handler_id = g_signal_connect
+ (
+ text_buffer,
+ "remove_tag",
+ G_CALLBACK(wxGtkOnRemoveTag),
+ gpointer(prefix)
+ );
+ gtk_text_buffer_remove_all_tags(text_buffer, start, end);
+ g_signal_handler_disconnect(text_buffer, remove_handler_id);
+}
+
+static void wxGtkTextApplyTagsFromAttr(GtkWidget *text,
+ GtkTextBuffer *text_buffer,
+ const wxTextAttr& attr,
+ GtkTextIter *start,
+ GtkTextIter *end)
+{
+ static gchar buf[1024];
+ GtkTextTag *tag;
+
+ if (attr.HasFont())
+ {
+ wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXFONT", start, end);
+
+ wxFont font(attr.GetFont());
+
+ PangoFontDescription *font_description = font.GetNativeFontInfo()->description;
+ wxGtkString font_string(pango_font_description_to_string(font_description));
+ g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string.c_str());
+ tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
+ buf );
+ if (!tag)
+ tag = gtk_text_buffer_create_tag( text_buffer, buf,
+ "font-desc", font_description,
+ NULL );
+ gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
+
+ if (font.GetUnderlined())
+ {
+ g_snprintf(buf, sizeof(buf), "WXFONTUNDERLINE");
+ tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
+ buf );
+ if (!tag)
+ tag = gtk_text_buffer_create_tag( text_buffer, buf,
+ "underline-set", TRUE,
+ "underline", PANGO_UNDERLINE_SINGLE,
+ NULL );
+ gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
+ }
+ }
+
+ if (attr.HasTextColour())
+ {
+ wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXFORECOLOR", start, end);
+
+ const GdkColor *colFg = attr.GetTextColour().GetColor();
+ g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
+ colFg->red, colFg->green, colFg->blue);
+ tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
+ buf );
+ if (!tag)
+ tag = gtk_text_buffer_create_tag( text_buffer, buf,
+ "foreground-gdk", colFg, NULL );
+ gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
+ }
+
+ if (attr.HasBackgroundColour())
+ {
+ wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXBACKCOLOR", start, end);
+
+ const GdkColor *colBg = attr.GetBackgroundColour().GetColor();
+ g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
+ colBg->red, colBg->green, colBg->blue);
+ tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
+ buf );
+ if (!tag)
+ tag = gtk_text_buffer_create_tag( text_buffer, buf,
+ "background-gdk", colBg, NULL );
+ gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
+ }
+
+ if (attr.HasAlignment())
+ {
+ GtkTextIter para_start, para_end = *end;
+ gtk_text_buffer_get_iter_at_line( text_buffer,
+ ¶_start,
+ gtk_text_iter_get_line(start) );
+ gtk_text_iter_forward_line(¶_end);
+
+ wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXALIGNMENT", ¶_start, ¶_end);
+
+ GtkJustification align;
+ switch (attr.GetAlignment())
+ {
+ default:
+ align = GTK_JUSTIFY_LEFT;
+ break;
+ case wxTEXT_ALIGNMENT_RIGHT:
+ align = GTK_JUSTIFY_RIGHT;
+ break;
+ case wxTEXT_ALIGNMENT_CENTER:
+ align = GTK_JUSTIFY_CENTER;
+ break;
+// gtk+ doesn't support justify before gtk+-2.11.0 with pango-1.17 being available
+// (but if new enough pango isn't available it's a mere gtk warning)
+#if GTK_CHECK_VERSION(2,11,0)
+ case wxTEXT_ALIGNMENT_JUSTIFIED:
+ if (!gtk_check_version(2,11,0))
+ align = GTK_JUSTIFY_FILL;
+ else
+ align = GTK_JUSTIFY_LEFT;
+ break;
+#endif
+ }
+
+ g_snprintf(buf, sizeof(buf), "WXALIGNMENT %d", align);
+ tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
+ buf );
+ if (!tag)
+ tag = gtk_text_buffer_create_tag( text_buffer, buf,
+ "justification", align, NULL );
+ gtk_text_buffer_apply_tag( text_buffer, tag, ¶_start, ¶_end );
+ }
+
+ if (attr.HasLeftIndent())
+ {
+ // Indentation attribute
+
+ // Clear old indentation tags
+ GtkTextIter para_start, para_end = *end;
+ gtk_text_buffer_get_iter_at_line( text_buffer,
+ ¶_start,
+ gtk_text_iter_get_line(start) );
+ gtk_text_iter_forward_line(¶_end);
projects / wxWidgets.git / blobdiff