void grid_text_renderer<T>::render(glyph_positions const& pos, value_integer feature_id)
{
glyphs_.clear();
prepare_glyphs(pos);
FT_Error error;
FT_Vector start;
unsigned height = pixmap_.height();
pixel_position const& base_point = pos.get_base_point();
start.x = static_cast<FT_Pos>(base_point.x * (1 << 6));
start.y = static_cast<FT_Pos>((height - base_point.y) * (1 << 6));
// now render transformed glyphs
double halo_radius = 0.0;
for (auto & glyph : glyphs_)
{
if (glyph.properties)
{
halo_radius = glyph.properties->halo_radius * scale_factor_;
}
FT_Glyph_Transform(glyph.image, 0, &start);
error = FT_Glyph_To_Bitmap(&glyph.image, FT_RENDER_MODE_NORMAL, 0, 1);
if (!error)
{
FT_BitmapGlyph bit = reinterpret_cast<FT_BitmapGlyph>(glyph.image);
render_halo_id(&bit->bitmap,
feature_id,
bit->left,
height - bit->top,
static_cast<int>(halo_radius));
}
}
}
void grid_text_renderer<T>::render(glyph_positions const& pos, value_integer feature_id)
{
prepare_glyphs(pos);
FT_Error error;
FT_Vector start;
unsigned height = pixmap_.height();
pixel_position const& base_point = pos.get_base_point();
start.x = static_cast<FT_Pos>(base_point.x * (1 << 6));
start.y = static_cast<FT_Pos>((height - base_point.y) * (1 << 6));
start.x += transform_.tx * 64;
start.y += transform_.ty * 64;
// now render transformed glyphs
double halo_radius = 0.0;
FT_Matrix halo_matrix;
halo_matrix.xx = halo_transform_.sx * 0x10000L;
halo_matrix.xy = halo_transform_.shx * 0x10000L;
halo_matrix.yy = halo_transform_.sy * 0x10000L;
halo_matrix.yx = halo_transform_.shy * 0x10000L;
for (auto & glyph : glyphs_)
{
halo_radius = glyph.properties.halo_radius * scale_factor_;
FT_Glyph_Transform(glyph.image, &halo_matrix, &start);
error = FT_Glyph_To_Bitmap(&glyph.image, FT_RENDER_MODE_NORMAL, 0, 1);
if (!error)
{
FT_BitmapGlyph bit = reinterpret_cast<FT_BitmapGlyph>(glyph.image);
render_halo_id(&bit->bitmap,
feature_id,
bit->left,
height - bit->top,
static_cast<int>(halo_radius));
}
FT_Done_Glyph(glyph.image);
}
}
