File qt4-fake-bold.patch of Package libqt4
--- src/gui/text/qfontdatabase_x11.cpp
+++ src/gui/text/qfontdatabase_x11.cpp
@@ -783,6 +783,13 @@
? QFont::StyleOblique
: QFont::StyleNormal);
+ FcBool embolden;
+#ifdef FC_EMBOLDEN
+ if (FcPatternGetBool(pattern, FC_EMBOLDEN, 0, &embolden) != FcResultMatch)
+#endif
+ embolden = false;
+ if(embolden)
+ fontDef.weight=QFont::Bold;
FcBool scalable;
if (FcPatternGetBool(pattern, FC_SCALABLE, 0, &scalable) != FcResultMatch)
@@ -1329,10 +1336,25 @@
if (! enc) continue; // should not happen either
QtFontStyle::Key key = style->key;
-
+ // does this style have a bold equivalent?
+ key.weight = QFont::Bold;
+ QtFontStyle *equiv = foundry->style(key);
+ if (!equiv) {
+ // let's fake one...
+ equiv = foundry->style(key, true);
+ equiv->smoothScalable = true;
+
+ QtFontSize *equiv_size = equiv->pixelSize(SMOOTH_SCALABLE, true);
+ QtFontEncoding *equiv_enc = equiv_size->encodingID(-1, 0, 0, 0, 0, true);
+
+ // keep the same pitch
+ equiv_enc->pitch = enc->pitch;
+ key.weight = QFont::Normal;
+ }
// does this style have an italic equivalent?
key.style = QFont::StyleItalic;
- QtFontStyle *equiv = foundry->style(key);
+// QtFontStyle *equiv = foundry->style(key);
+ equiv = foundry->style( key );
if (equiv) continue;
// does this style have an oblique equivalent?
@@ -1449,7 +1471,10 @@
else if (request.weight < (QFont::Bold + QFont::Black) / 2)
weight_value = FC_WEIGHT_BOLD;
FcPatternAddInteger(pattern, FC_WEIGHT, weight_value);
-
+#ifdef FC_EMBOLDEN
+ if(request.weight == QFont::Bold)
+ FcPatternAddBool(pattern, FC_EMBOLDEN, true);
+#endif
int slant_value = FC_SLANT_ROMAN;
if (request.style == QFont::StyleItalic)
slant_value = FC_SLANT_ITALIC;
--- src/gui/text/qfontengine_ft.cpp
+++ src/gui/text/qfontengine_ft.cpp
@@ -65,7 +65,10 @@
#include FT_TRUETYPE_TABLES_H
#include FT_TYPE1_TABLES_H
#include FT_GLYPH_H
-
+#ifdef FT_SYNTHESIS_H
+#define HAVE_FT_GLYPHSLOT_EMBOLDEN 1
+#include FT_SYNTHESIS_H
+#endif
QT_BEGIN_NAMESPACE
/*
@@ -516,6 +519,7 @@
kerning_pairs_loaded = false;
transform = false;
antialias = true;
+ embolden = false;
default_load_flags = FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH;
subpixelType = Subpixel_None;
defaultGlyphFormat = Format_None;
@@ -536,10 +540,11 @@
freeServerGlyphSet(transformedGlyphSets.at(i).id);
}
-bool QFontEngineFT::init(FaceId faceId, bool antialias, GlyphFormat defaultFormat)
+bool QFontEngineFT::init(FaceId faceId, bool antialias, GlyphFormat defaultFormat, bool embolden)
{
defaultGlyphFormat = defaultFormat;
this->antialias = antialias;
+ this->embolden = embolden;
face_id = faceId;
freetype = QFreetypeFace::getFace(face_id);
if (!freetype) {
@@ -680,7 +685,52 @@
return 0;
FT_GlyphSlot slot = face->glyph;
-
+ if(embolden && (face->style_flags & FT_STYLE_FLAG_BOLD) == 0)
+ {
+ //if not antialias and no bitmap, for example, dongwensong English characters.
+ //for DongWenSong Chinese character, if it not antialias, it will use bitmap output.
+ if(!antialias && slot->format == FT_GLYPH_FORMAT_OUTLINE)
+ {
+ int left = slot->metrics.horiBearingX;
+ int right = slot->metrics.horiBearingX + slot->metrics.width;
+ int top = slot->metrics.horiBearingY;
+ int bottom = slot->metrics.horiBearingY - slot->metrics.height;
+ int hpixels = TRUNC(right - left)+4;
+ if (hsubpixel)
+ hpixels = hpixels*3 + 8;
+ int width = hpixels;
+ int height = TRUNC(top - bottom);
+ if (hsubpixel) {
+ width /= 3;
+ }
+ int pitch = (format == Format_Mono ? ((width + 31) & ~31) >> 3 :
+ (format == Format_A8 ? (width + 3) & ~3 : width * 4));
+ int size = pitch * height;
+ uchar *glyph_buffer = new uchar[size];
+
+ slot->bitmap.rows = height*vfactor;
+ slot->bitmap.width = hpixels;
+ slot->bitmap.pitch = format == Format_Mono ? (((width + 31) & ~31) >> 3) : ((slot->bitmap.width + 3) & ~3);
+ slot->bitmap.buffer = new uchar[slot->bitmap.rows*slot->bitmap.pitch];
+ if (!hsubpixel && vfactor == 1)
+ slot->bitmap.buffer = glyph_buffer;
+ else
+ slot->bitmap.buffer = new uchar[slot->bitmap.rows*slot->bitmap.pitch];
+ memset(slot->bitmap.buffer, 0, slot->bitmap.rows*slot->bitmap.pitch);
+ slot->bitmap.pixel_mode = ft_pixel_mode_mono;
+ FT_Matrix matrix;
+ matrix.xx = (hsubpixel ? 3 : 1) << 16;
+ matrix.yy = vfactor << 16;
+ matrix.yx = matrix.xy = 0;
+ FT_Outline_Transform(&slot->outline, &matrix);
+ FT_Outline_Translate (&slot->outline, (hsubpixel ? -3*left +(4<<6) : -left), -bottom*vfactor);
+ FT_Outline_Get_Bitmap(qt_getFreetype(), &slot->outline, &slot->bitmap);
+ slot->format = FT_GLYPH_FORMAT_BITMAP;
+ FT_GlyphSlot_Embolden(slot);
+ }
+ else
+ FT_GlyphSlot_Embolden(slot);
+ }
int left = slot->metrics.horiBearingX;
int right = slot->metrics.horiBearingX + slot->metrics.width;
int top = slot->metrics.horiBearingY;
@@ -725,6 +775,8 @@
top = CEIL(top);
int hpixels = TRUNC(right - left);
+ if(!antialias && embolden && (face->style_flags & FT_STYLE_FLAG_BOLD) == 0 && transform)
+ hpixels += 4;
if (hsubpixel)
hpixels = hpixels*3 + 8;
info.width = hpixels;
@@ -1301,6 +1353,8 @@
FT_GlyphSlot g = face->glyph;
if (g->format != FT_GLYPH_FORMAT_OUTLINE)
continue;
+ if (embolden && (face->style_flags & FT_STYLE_FLAG_BOLD) == 0)
+ FT_GlyphSlot_Embolden (g);
QFreetypeFace::addGlyphToPath(face, g, positions[gl], path, xsize, ysize);
}
unlockFace();
--- src/gui/text/qfontengine_ft_p.h
+++ src/gui/text/qfontengine_ft_p.h
@@ -257,7 +257,7 @@
QFontEngineFT(const QFontDef &fd);
virtual ~QFontEngineFT();
- bool init(FaceId faceId, bool antiaalias, GlyphFormat defaultFormat = Format_None);
+ bool init(FaceId faceId, bool antiaalias, GlyphFormat defaultFormat = Format_None, bool embolden=false);
virtual HB_Error getPointInOutline(HB_Glyph glyph, int flags, hb_uint32 point, HB_Fixed *xpos, HB_Fixed *ypos, hb_uint32 *nPoints);
@@ -273,6 +273,7 @@
int default_load_flags;
bool antialias;
+ bool embolden;
bool outline_drawing;
bool transform;
SubpixelAntialiasingType subpixelType;
--- src/gui/text/qfontengine_x11.cpp
+++ src/gui/text/qfontengine_x11.cpp
@@ -878,7 +878,7 @@
-Q_GUI_EXPORT void qt_x11ft_convert_pattern(FcPattern *pattern, QByteArray *file_name, int *index, bool *antialias)
+static void qt_x11ft_convert_pattern(FcPattern *pattern, QByteArray *file_name, int *index, bool *antialias, bool *embolden)
{
FcChar8 *fileName;
FcPatternGetString(pattern, FC_FILE, 0, &fileName);
@@ -888,6 +888,11 @@
FcBool b;
if (FcPatternGetBool(pattern, FC_ANTIALIAS, 0, &b) == FcResultMatch)
*antialias = b;
+ b = false;
+#ifdef FC_EMBOLDEN
+ if (FcPatternGetBool (pattern,FC_EMBOLDEN, 0, &b) == FcResultMatch)
+#endif
+ *embolden = b;
}
@@ -897,9 +902,10 @@
// FcPatternPrint(pattern);
bool antialias = X11->fc_antialias;
+ bool embolden = false;
QByteArray file_name;
int face_index;
- qt_x11ft_convert_pattern(pattern, &file_name, &face_index, &antialias);
+ qt_x11ft_convert_pattern(pattern, &file_name, &face_index, &antialias, &embolden);
QFontEngine::FaceId face_id;
face_id.filename = file_name;
face_id.index = face_index;
@@ -972,8 +978,7 @@
defaultFormat = Format_Mono;
}
#endif
-
- if (!init(face_id, antialias, defaultFormat)) {
+ if (!init(face_id, antialias, defaultFormat, embolden)) {
FcPatternDestroy(pattern);
return;
}
