draw only when needed
Dana Jansens danakj@orodu.net
2 files changed,
66 insertions(+),
59 deletions(-)
M
src/labelwidget.cc
→
src/labelwidget.cc
@@ -72,38 +72,42 @@
void OBLabelWidget::update() { + bool draw = _dirty; + OtkWidget::update(); - std::string t = _text; - int x = _sidemargin; // x coord for the text + if (draw) { + std::string t = _text; + int x = _sidemargin; // x coord for the text - // find a string that will fit inside the area for text - int max_length = width() - _sidemargin * 2; - if (max_length <= 0) { - t = ""; // can't fit anything - } else { - size_t text_len = t.size(); - int length; + // find a string that will fit inside the area for text + int max_length = width() - _sidemargin * 2; + if (max_length <= 0) { + t = ""; // can't fit anything + } else { + size_t text_len = t.size(); + int length; - do { - t.resize(text_len); - length = _font->measureString(t); - } while (length > max_length && text_len-- > 0); + do { + t.resize(text_len); + length = _font->measureString(t); + } while (length > max_length && text_len-- > 0); - // justify the text - switch (_justify) { - case otk::Style::RightJustify: - x += max_length - length; - break; - case otk::Style::CenterJustify: - x += (max_length - length) / 2; - break; - case otk::Style::LeftJustify: - break; + // justify the text + switch (_justify) { + case otk::Style::RightJustify: + x += max_length - length; + break; + case otk::Style::CenterJustify: + x += (max_length - length) / 2; + break; + case otk::Style::LeftJustify: + break; + } } - } - _font->drawString(_xftdraw, x, 0, *_text_color, t); + _font->drawString(_xftdraw, x, 0, *_text_color, t); + } }