fix/simplify bbox code a bit
[enigma2.git] / lib / gdi / font.cpp
index a0b6d2e..1471aa5 100644 (file)
@@ -60,12 +60,12 @@ static gLookup &getColor(const gPalette &pal, const gRGB &start, const gRGB &end
        if (i != colorcache.end())
                return i->second;
        gLookup &n=colorcache.insert(std::pair<fntColorCacheKey,gLookup>(key,gLookup())).first->second;
-       eDebug("[FONT] creating new font color cache entry %02x%02x%02x%02x .. %02x%02x%02x%02x", start.a, start.r, start.g, start.b,
-               end.a, end.r, end.g, end.b);
+//     eDebug("[FONT] creating new font color cache entry %02x%02x%02x%02x .. %02x%02x%02x%02x", start.a, start.r, start.g, start.b,
+//             end.a, end.r, end.g, end.b);
        n.build(16, pal, start, end);
-/*     for (int i=0; i<16; i++)
-               eDebugNoNewLine("%02x|%02x%02x%02x%02x ", (int)n.lookup[i], pal.data[n.lookup[i]].a, pal.data[n.lookup[i]].r, pal.data[n.lookup[i]].g, pal.data[n.lookup[i]].b);
-       eDebug("");*/
+//     for (int i=0; i<16; i++)
+//             eDebugNoNewLine("%02x|%02x%02x%02x%02x ", (int)n.lookup[i], pal.data[n.lookup[i]].a, pal.data[n.lookup[i]].r, pal.data[n.lookup[i]].g, pal.data[n.lookup[i]].b);
+//     eDebug("");
        return n;
 }
 
@@ -101,7 +101,7 @@ FT_Error fontRenderClass::FTC_Face_Requester(FTC_FaceID     face_id, FT_Face* aface)
        return 0;
 }                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
 
-FTC_FaceID fontRenderClass::getFaceID(const eString &face)
+FTC_FaceID fontRenderClass::getFaceID(const std::string &face)
 {
        for (fontListEntry *f=font; f; f=f->next)
        {
@@ -117,7 +117,7 @@ FT_Error fontRenderClass::getGlyphBitmap(FTC_Image_Desc *font, FT_ULong glyph_in
        return res;
 }
 
-eString fontRenderClass::AddFont(const eString &filename, const eString &name, int scale)
+std::string fontRenderClass::AddFont(const std::string &filename, const std::string &name, int scale)
 {
        eDebugNoNewLine("[FONT] adding font %s...", filename.c_str());
        fflush(stdout);
@@ -225,7 +225,7 @@ fontRenderClass::~fontRenderClass()
 //     FT_Done_FreeType(library);
 }
 
-int fontRenderClass::getFont(ePtr<Font> &font, const eString &face, int size, int tabwidth)
+int fontRenderClass::getFont(ePtr<Font> &font, const std::string &face, int size, int tabwidth)
 {
        FTC_FaceID id=getFaceID(face);
        if (!id)
@@ -239,7 +239,7 @@ int fontRenderClass::getFont(ePtr<Font> &font, const eString &face, int size, in
 
 DEFINE_REF(Font);
 
-Font::Font(fontRenderClass *render, FTC_FaceID faceid, int isize, int tw): ref(0), tabwidth(tw)
+Font::Font(fontRenderClass *render, FTC_FaceID faceid, int isize, int tw): tabwidth(tw)
 {
        renderer=render;
        font.font.face_id=faceid;
@@ -249,7 +249,6 @@ Font::Font(fontRenderClass *render, FTC_FaceID faceid, int isize, int tw): ref(0
        height=isize;
        if (tabwidth==-1)
                tabwidth=8*isize;
-       ref=0;
 //     font.image_type |= ftc_image_flag_autohinted;
 }
 
@@ -262,6 +261,8 @@ Font::~Font()
 {
 }
 
+DEFINE_REF(eTextPara);
+
 int eTextPara::appendGlyph(Font *current_font, FT_Face current_face, FT_UInt glyphIndex, int flags, int rflags)
 {
        FTC_SBit glyph;
@@ -330,30 +331,39 @@ int eTextPara::appendGlyph(Font *current_font, FT_Face current_face, FT_UInt gly
        ng.bbox.setWidth( glyph->width );
        ng.bbox.setHeight( glyph->height );
 
-       xadvance+=kern;
+       xadvance += kern;
+       ng.bbox.setWidth(xadvance);
 
-       ng.x=cursor.x()+kern;
-       ng.y=cursor.y();
-       ng.w=xadvance;
-       ng.font=current_font;
-       ng.glyph_index=glyphIndex;
-       ng.flags=flags;
+       ng.x = cursor.x()+kern;
+       ng.y = cursor.y();
+       ng.w = xadvance;
+       ng.font = current_font;
+       ng.glyph_index = glyphIndex;
+       ng.flags = flags;
        glyphs.push_back(ng);
 
-       cursor+=ePoint(xadvance, 0);
-       previous=glyphIndex;
+       cursor += ePoint(xadvance, 0);
+       previous = glyphIndex;
        return 0;
 }
 
 void eTextPara::calc_bbox()
 {
-       boundBox.setLeft( 32000 );
-       boundBox.setTop( 32000 );
-       boundBox.setRight( -32000 );         // for each glyph image, compute its bounding box, translate it,
-       boundBox.setBottom( -32000 );
-       // and grow the string bbox
+       if (!glyphs.size())
+       {
+               bboxValid = 0;
+               boundBox = eRect();
+               return;
+       }
+       
+       bboxValid = 1;
+
+       glyphString::iterator i(glyphs.begin());
+       
+       boundBox = i->bbox; 
+       ++i;
 
-       for ( glyphString::iterator i(glyphs.begin()); i != glyphs.end(); ++i)
+       for (; i != glyphs.end(); ++i)
        {
                if ( i->flags & GS_ISSPACE )
                        continue;
@@ -367,8 +377,6 @@ void eTextPara::calc_bbox()
                        boundBox.setBottom( i->bbox.bottom() );
        }
 //     eDebug("boundBox left = %i, top = %i, right = %i, bottom = %i", boundBox.left(), boundBox.top(), boundBox.right(), boundBox.bottom() );
-       if ( glyphs.size() )
-               bboxValid=1;
 }
 
 void eTextPara::newLine(int flags)
@@ -387,30 +395,10 @@ void eTextPara::newLine(int flags)
 eTextPara::~eTextPara()
 {
        clear();
-       if (refcnt>=0)
-               eFatal("verdammt man der war noch gelockt :/\n");
-}
-
-void eTextPara::destroy()
-{
-       singleLock s(refcntlck);
-
-       if (!refcnt--)
-               delete this;
-}
-
-eTextPara *eTextPara::grab()
-{
-       singleLock s(refcntlck);
-
-       refcnt++;
-       return this;
 }
 
 void eTextPara::setFont(const gFont *font)
 {
-       if (refcnt)
-               eFatal("mod. after lock");
        ePtr<Font> fnt, replacement;
        fontRenderClass::getInstance()->getFont(fnt, font->family.c_str(), font->pointSize);
        if (!fnt)
@@ -419,12 +407,10 @@ void eTextPara::setFont(const gFont *font)
        setFont(fnt, replacement);
 }
 
-eString eTextPara::replacement_facename;
+std::string eTextPara::replacement_facename;
 
 void eTextPara::setFont(Font *fnt, Font *replacement)
 {
-       if (refcnt)
-               eFatal("mod. after lock");
        if (!fnt)
                return;
        current_font=fnt;
@@ -458,13 +444,10 @@ void eTextPara::setFont(Font *fnt, Font *replacement)
 void
 shape (std::vector<unsigned long> &string, const std::vector<unsigned long> &text);
 
-int eTextPara::renderString(const eString &string, int rflags)
+int eTextPara::renderString(const std::string &string, int rflags)
 {
        singleLock s(ftlock);
        
-       if (refcnt)
-               eFatal("mod. after lock");
-
        if (!current_font)
                return -1;
                
@@ -487,11 +470,11 @@ int eTextPara::renderString(const eString &string, int rflags)
        std::vector<unsigned long> uc_string, uc_visual;
        uc_string.reserve(string.length());
        
-       eString::const_iterator p(string.begin());
+       std::string::const_iterator p(string.begin());
 
        while(p != string.end())
        {
-               unsigned int unicode=*p++;
+               unsigned int unicode=(unsigned char)*p++;
 
                if (unicode & 0x80) // we have (hopefully) UTF8 here, and we assume that the encoding is VALID
                {
@@ -654,14 +637,22 @@ void eTextPara::blit(gDC &dc, const ePoint &offset, const gRGB &background, cons
        gSurface *surface = target->surface;
 
        register int opcode;
-       gColor *lookup8=0;
-       __u32 lookup32[16];
-               
+
+       gColor *lookup8, lookup8_invert[16];
+       gColor *lookup8_normal=0;
+
+       __u32 lookup32_normal[16], lookup32_invert[16], *lookup32;
+       
        if (surface->bpp == 8)
        {
                if (surface->clut.data)
                {
-                       lookup8=getColor(surface->clut, background, foreground).lookup;
+                       lookup8_normal=getColor(surface->clut, background, foreground).lookup;
+                       
+                       int i;
+                       for (i=0; i<16; ++i)
+                               lookup8_invert[i] = lookup8_normal[i^0xF];
+                       
                        opcode=0;
                } else
                        opcode=1;
@@ -672,15 +663,17 @@ void eTextPara::blit(gDC &dc, const ePoint &offset, const gRGB &background, cons
                {
                        lookup8=getColor(surface->clut, background, foreground).lookup;
                        for (int i=0; i<16; ++i)
-                               lookup32[i]=((surface->clut.data[lookup8[i]].a<<24)|
+                               lookup32_normal[i]=((surface->clut.data[lookup8[i]].a<<24)|
                                        (surface->clut.data[lookup8[i]].r<<16)|
                                        (surface->clut.data[lookup8[i]].g<<8)|
                                        (surface->clut.data[lookup8[i]].b))^0xFF000000;
                } else
                {
                        for (int i=0; i<16; ++i)
-                               lookup32[i]=(0x010101*i)|0xFF000000;
+                               lookup32_normal[i]=(0x010101*i)|0xFF000000;
                }
+               for (int i=0; i<16; ++i)
+                       lookup32_invert[i]=lookup32_normal[i^0xF];
        } else
        {
                eWarning("can't render to %dbpp", surface->bpp);
@@ -688,18 +681,28 @@ void eTextPara::blit(gDC &dc, const ePoint &offset, const gRGB &background, cons
        }
        
        gRegion area(eRect(0, 0, surface->x, surface->y));
-       gRegion clip;
-       clip.intersect(area, dc.getClip());
+       gRegion clip = dc.getClip() & area;
 
        int buffer_stride=surface->stride;
-
+       
        for (glyphString::iterator i(glyphs.begin()); i != glyphs.end(); ++i)
        {
+               if (!(i->flags & GS_INVERT))
+               {
+                       lookup8 = lookup8_normal;
+                       lookup32 = lookup32_normal;
+               } else
+               {
+                       lookup8 = lookup8_invert;
+                       lookup32 = lookup32_invert;
+               }
+               
                static FTC_SBit glyph_bitmap;
                if (fontRenderClass::instance->getGlyphBitmap(&i->font->font, i->glyph_index, &glyph_bitmap))
                        continue;
                int rx=i->x+glyph_bitmap->left + offset.x();
                int ry=i->y-glyph_bitmap->top  + offset.y();
+               
                __u8 *d=(__u8*)(surface->data)+buffer_stride*ry+rx*surface->bypp;
                __u8 *s=glyph_bitmap->buffer;
                register int sx=glyph_bitmap->width;
@@ -731,6 +734,7 @@ void eTextPara::blit(gDC &dc, const ePoint &offset, const gRGB &background, cons
                                {
                                        register __u8 *td=d;
                                        register int ax;
+                                       
                                        for (ax=0; ax<sx; ax++)
                                        {       
                                                register int b=(*s++)>>4;