+void Entry::adjust_edit_position_for_change(size_t pos, ptrdiff_t change)
+{
+ size_t old_edit_pos = edit_pos;
+ size_t old_select_pos = selection_pos;
+
+ if(change>0)
+ {
+ if(edit_pos>=pos)
+ edit_pos += change;
+ if(selection_active && selection_pos>=pos)
+ selection_pos += change;
+ }
+ else if(change<0)
+ {
+ if(edit_pos>=pos)
+ edit_pos -= min<size_t>(edit_pos-pos, -change);
+ if(selection_active && selection_pos>=pos)
+ selection_pos -= min<size_t>(selection_pos-pos, -change);
+ }
+
+ if(edit_pos!=old_edit_pos)
+ signal_edit_position_changed.emit(edit_pos);
+ if(selection_active && (edit_pos!=old_edit_pos || selection_pos!=old_select_pos))
+ {
+ size_t start, end;
+ if(get_selection(start, end))
+ signal_selection_changed.emit(start, end);
+ }
+}
+
+void Entry::set_edit_position(size_t ep, bool select)
+{
+ bool selection_was_active = selection_active;
+ if(select && !selection_active)
+ selection_pos = edit_pos;
+ selection_active = select;
+
+ size_t old_edit_pos = edit_pos;
+ edit_pos = min(ep, text.size());
+
+ if(edit_pos!=old_edit_pos)
+ {
+ signal_edit_position_changed.emit(edit_pos);
+ size_t start, end;
+ if(get_selection(start, end))
+ signal_selection_changed.emit(start, end);
+ else if(selection_was_active)
+ signal_selection_changed.emit(edit_pos, edit_pos);
+ }
+
+ if(multiline)
+ check_view_range();
+ mark_rebuild();
+}
+
+void Entry::erase_selection(bool emit_change)
+{
+ size_t start, end;
+ if(!get_selection(start, end))
+ return;
+
+ text.erase(start, end-start);
+ if(emit_change)
+ signal_text_changed.emit(text.get());
+ set_edit_position(start, false);
+}
+
+void Entry::check_cursor_blink()
+{
+ const Part *cursor_part = style->find_part("cursor");
+ bool has_blink = (cursor_part && cursor_part->get_graphic(ACTIVE|FOCUS)!=cursor_part->get_graphic(NORMAL|FOCUS));
+
+ cursor_blink = (state&FOCUS);
+ if((state&FOCUS) && style && has_blink)
+ {
+ set_animation_interval(Time::sec/2);
+ mark_rebuild();
+ }
+ else
+ {
+ if(has_blink)
+ mark_rebuild();
+ stop_animation();
+ }
+}
+
+void Entry::check_view_range()
+{
+ if(!multiline || !text_part)
+ return;
+
+ visible_rows = text.get_visible_lines(*text_part, geom, nullptr);
+
+ size_t row, col;
+ text.offset_to_coords(edit_pos, row, col);
+
+ size_t old_first_row = first_row;
+ if(first_row>row)
+ first_row = row;
+ else if(row>=first_row+visible_rows)
+ first_row = row+1-visible_rows;
+
+ size_t scroll = max<size_t>(text.get_n_lines(), visible_rows)-visible_rows;
+ if(first_row>scroll)
+ first_row = scroll;
+
+ if(first_row!=old_first_row)
+ signal_scroll_position_changed.emit(first_row);
+
+ slider->set_range(0, scroll);
+ slider->set_page_size(visible_rows);
+ slider->set_value(scroll-first_row);
+}
+
+void Entry::slider_value_changed(double value)
+{
+ if(text.get_n_lines()>visible_rows)
+ {
+ size_t old_first_row = first_row;
+ first_row = text.get_n_lines()-visible_rows-static_cast<size_t>(value);
+ if(first_row!=old_first_row)
+ signal_scroll_position_changed.emit(first_row);
+ mark_rebuild();
+ }
+}
+
+
+Entry::Loader::Loader(Entry &e):
+ DataFile::DerivedObjectLoader<Entry, Widget::Loader>(e)
+{
+ add("edit_size", &Entry::edit_width, &Entry::edit_height);
+ add("multiline", &Loader::multiline);
+}
+
+void Entry::Loader::multiline(bool m)
+{
+ obj.set_multiline(m);
+}