+// ----------------------------------------------------------------------------
+// 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);
+
+ wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXINDENT", ¶_start, ¶_end);
+
+ // Convert indent from 1/10th of a mm into pixels
+ float factor =
+ (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
+ gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
+
+ const int indent = (int)(factor * attr.GetLeftIndent());
+ const int subIndent = (int)(factor * attr.GetLeftSubIndent());
+
+ gint gindent;
+ gint gsubindent;
+
+ if (subIndent >= 0)
+ {
+ gindent = indent;
+ gsubindent = -subIndent;
+ }
+ else
+ {
+ gindent = -subIndent;
+ gsubindent = indent;
+ }
+
+ g_snprintf(buf, sizeof(buf), "WXINDENT %d %d", gindent, gsubindent);
+ 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,
+ "left-margin", gindent, "indent", gsubindent, NULL );
+ gtk_text_buffer_apply_tag (text_buffer, tag, ¶_start, ¶_end);
+ }
+
+ if (attr.HasTabs())
+ {
+ // Set tab stops
+
+ // Clear old tabs
+ 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, "WXTABS", ¶_start, ¶_end);
+
+ const wxArrayInt& tabs = attr.GetTabs();
+
+ wxString tagname = _T("WXTABS");
+ g_snprintf(buf, sizeof(buf), "WXTABS");
+ for (size_t i = 0; i < tabs.GetCount(); i++)
+ tagname += wxString::Format(_T(" %d"), tabs[i]);
+
+ const wxWX2MBbuf buftag = tagname.utf8_str();
+
+ tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
+ buftag );
+ if (!tag)
+ {
+ // Factor to convert from 1/10th of a mm into pixels
+ float factor =
+ (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
+ gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
+
+ PangoTabArray* tabArray = pango_tab_array_new(tabs.GetCount(), TRUE);
+ for (size_t i = 0; i < tabs.GetCount(); i++)
+ pango_tab_array_set_tab(tabArray, i, PANGO_TAB_LEFT, (gint)(tabs[i] * factor));
+ tag = gtk_text_buffer_create_tag( text_buffer, buftag,
+ "tabs", tabArray, NULL );
+ pango_tab_array_free(tabArray);
+ }
+ gtk_text_buffer_apply_tag (text_buffer, tag, ¶_start, ¶_end);
+ }
+}
+
+static void wxGtkTextInsert(GtkWidget *text,
+ GtkTextBuffer *text_buffer,
+ const wxTextAttr& attr,
+ const wxCharBuffer& buffer)
+
+{
+ gint start_offset;
+ GtkTextIter iter, start;
+
+ gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
+ gtk_text_buffer_get_insert (text_buffer) );
+ start_offset = gtk_text_iter_get_offset (&iter);
+ gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
+
+ gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
+
+ wxGtkTextApplyTagsFromAttr(text, text_buffer, attr, &start, &iter);
+}
projects / wxWidgets.git / blobdiff