void LabelImpl::draw(CL_GraphicContext &p_gc)
{
G_ASSERT(m_parent->isLoaded());
float ax, ay;
const CL_Size s = m_parent->size(p_gc);
calculateAttachPoint(s.width, s.height, ax, ay);
CL_Pointf position;
position.x = m_pos.x - ax;
position.y = m_pos.y - ay - m_fontMetrics.get_descent();
if (m_shadowVisible) {
drawShadow(p_gc, position);
}
m_clFont->draw_text(p_gc, position.x, position.y, m_text, m_color);
#if !defined(NDEBUG) && defined(DRAW_LABEL_BOUNDS)
// draw label frame debug code
CL_Pen newPen;
newPen.set_line_width(1.0f);
const CL_Pen oldPen = p_gc.get_pen();
p_gc.set_pen(newPen);
const float y2 = y + m_fontMetrics.get_descent();
CL_Draw::box(p_gc, x, y2 - s.height, x + s.width, y2, CL_Colorf::red);
p_gc.set_pen(oldPen);
#endif // !NDEBUG && DRAW_LABEL_BOUNDS
}
CL_Size CL_Font::get_text_size(CL_GraphicContext &gc, const CL_StringRef &text)
{
CL_Size total_size;
if (!impl.is_null())
{
CL_FontMetrics fm = get_font_metrics(gc);
int line_spacing = fm.get_external_leading();
std::vector<CL_String> lines = CL_StringHelp::split_text(text, "\n", false);
for (std::vector<CL_String>::size_type i=0; i<lines.size(); i++)
{
CL_Size line_size = get_provider()->get_text_size(gc, lines[i]);
if ((line_size.width == 0) && (line_size.height == 0) && (lines.size() > 1)) // blank line
line_size.height = fm.get_descent() + fm.get_ascent();
if ((i+1) != lines.size()) // Do not add the line spacing on the last line
line_size.height += line_spacing;
if (total_size.width < line_size.width) // Find the widest line
total_size.width = line_size.width;
total_size.height += line_size.height;
}
}
return total_size;
}
CL_GUIThemePart::VerticalTextPosition CL_GUIThemePart::get_vertical_text_align(CL_GraphicContext &gc, CL_Font &font, const CL_Rect &content_rect)
{
// See diagram in: Documentation\Overview\fonts.html (Font Metrics)
CL_FontMetrics metrics = font.get_font_metrics();
float align_height = metrics.get_ascent() - metrics.get_internal_leading();
float content_height = content_rect.get_height();
float baseline = (content_height + align_height) / 2.0f;
VerticalTextPosition result;
result.baseline = baseline + content_rect.top;
result.top = result.baseline - metrics.get_ascent();
result.bottom = result.baseline + metrics.get_descent();
return result;
}
