diff options
author | peter1138 <peter1138@openttd.org> | 2009-11-15 14:39:37 +0000 |
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committer | peter1138 <peter1138@openttd.org> | 2009-11-15 14:39:37 +0000 |
commit | f28d32943df0029ae37f818ac0209ab3679000bc (patch) | |
tree | 510305f8ec259afa29cef4144b1bc5516d498a9d /src | |
parent | f6ec2fa5b9f7ba9376eac96dfdcfa9e921d94363 (diff) | |
download | openttd-f28d32943df0029ae37f818ac0209ab3679000bc.tar.xz |
(svn r18096) -Fix (r5079/r7158??): Use free type ascender/descender metrics to position font offset correctly.
Diffstat (limited to 'src')
-rw-r--r-- | src/fontcache.cpp | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/src/fontcache.cpp b/src/fontcache.cpp index 43852fa29..4966670d9 100644 --- a/src/fontcache.cpp +++ b/src/fontcache.cpp @@ -36,6 +36,7 @@ static FT_Library _library = NULL; static FT_Face _face_small = NULL; static FT_Face _face_medium = NULL; static FT_Face _face_large = NULL; +static int _ascender[FS_END]; FreeTypeSettings _freetype; @@ -707,6 +708,22 @@ FT_Error GetFontByFaceName(const char *font_name, FT_Face *face) {return FT_Err_ bool SetFallbackFont(FreeTypeSettings *settings, const char *language_isocode, int winlangid, const char *str) { return false; } #endif /* WITH_FONTCONFIG */ +static void SetFontGeometry(FT_Face face, FontSize size, int pixels) +{ + FT_Set_Pixel_Sizes(face, 0, pixels); + + if (FT_IS_SCALABLE(face)) { + int asc = face->ascender * pixels / face->units_per_EM; + int dec = face->descender * pixels / face->units_per_EM; + + _ascender[size] = asc; + _font_height[size] = asc - dec; + } else { + _ascender[size] = pixels; + _font_height[size] = pixels; + } +} + /** * Loads the freetype font. * First type to load the fontname as if it were a path. If that fails, @@ -781,16 +798,13 @@ void InitFreeType() /* Set each font size */ if (_face_small != NULL) { - FT_Set_Pixel_Sizes(_face_small, 0, _freetype.small_size); - _font_height[FS_SMALL] = _freetype.small_size; + SetFontGeometry(_face_small, FS_SMALL, _freetype.small_size); } if (_face_medium != NULL) { - FT_Set_Pixel_Sizes(_face_medium, 0, _freetype.medium_size); - _font_height[FS_NORMAL] = _freetype.medium_size; + SetFontGeometry(_face_medium, FS_NORMAL, _freetype.medium_size); } if (_face_large != NULL) { - FT_Set_Pixel_Sizes(_face_large, 0, _freetype.large_size); - _font_height[FS_LARGE] = _freetype.large_size; + SetFontGeometry(_face_large, FS_LARGE, _freetype.large_size); } } @@ -934,7 +948,6 @@ const Sprite *GetGlyph(FontSize size, WChar key) int height; int x; int y; - int y_adj; assert(IsPrintable(key)); @@ -968,9 +981,7 @@ const Sprite *GetGlyph(FontSize size, WChar key) sprite.width = width; sprite.height = height; sprite.x_offs = slot->bitmap_left; - /* XXX 2 should be determined somehow... it's right for the normal face */ - y_adj = (size == FS_NORMAL) ? 2 : 0; - sprite.y_offs = GetCharacterHeight(size) - slot->bitmap_top - y_adj; + sprite.y_offs = _ascender[size] - slot->bitmap_top; /* Draw shadow for medium size */ if (size == FS_NORMAL) { |