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Rotate offsets.

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This commit is contained in:
Hermann Kraus 2012-08-10 18:50:38 +02:00
parent 6eebda886d
commit 75f4cbba18
1 changed files with 8 additions and 7 deletions
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15
src/text/renderer.cpp
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@ -27,11 +27,12 @@ void text_renderer<T>::prepare_glyphs(glyph_positions_ptr pos)
FT_Error error;
bool constant_angle = pos->is_constant_angle();
double sina, cosa;
if (constant_angle)
{
double angle = pos->get_angle();
double cosa = cos(angle);
double sina = sin(angle);
cosa = cos(angle);
sina = sin(angle);
matrix.xx = (FT_Fixed)( cosa * 0x10000L);
matrix.xy = (FT_Fixed)(-sina * 0x10000L);
matrix.yx = (FT_Fixed)( sina * 0x10000L);
@ -43,20 +44,20 @@ void text_renderer<T>::prepare_glyphs(glyph_positions_ptr pos)
glyph_info const& glyph = *(itr->glyph);
glyph.face->set_character_sizes(glyph.format->text_size * scale_factor_); //TODO: Optimize this?
pen.x = int((itr->pos.x + glyph.offset_x) * 64);
pen.y = int((itr->pos.y + glyph.offset_y) * 64);
if (!constant_angle)
{
double angle = itr->angle;
double cosa = cos(angle);
double sina = sin(angle);
cosa = cos(angle);
sina = sin(angle);
matrix.xx = (FT_Fixed)( cosa * 0x10000L);
matrix.xy = (FT_Fixed)(-sina * 0x10000L);
matrix.yx = (FT_Fixed)( sina * 0x10000L);
matrix.yy = (FT_Fixed)( cosa * 0x10000L);
}
pen.x = int((itr->pos.x + glyph.offset_x * cosa - glyph.offset_y * sina) * 64);
pen.y = int((itr->pos.y + glyph.offset_y * cosa + glyph.offset_x * sina) * 64);
FT_Face face = glyph.face->get_face();
FT_Set_Transform(face, &matrix, &pen);