remove old comment, fix returncodes on signal
[enigma2.git] / lib / gdi / font.cpp
index e7a0074..1f09d1b 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);
@@ -192,39 +192,51 @@ float fontRenderClass::getLineHeight(const gFont& font)
 {
        if (!instance)
                return 0;
-       Font *fnt = getFont( font.family.c_str(), font.pointSize);
+       ePtr<Font> fnt;
+       getFont(fnt, font.family.c_str(), font.pointSize);
        if (!fnt)
                return 0;
        singleLock s(ftlock);
        FT_Face current_face;
        if (FTC_Manager_Lookup_Size(cacheManager, &fnt->font.font, &current_face, &fnt->size)<0)
        {
+               delete fnt;
                eDebug("FTC_Manager_Lookup_Size failed!");
                return 0;
        }
        int linegap=current_face->size->metrics.height-(current_face->size->metrics.ascender+current_face->size->metrics.descender);
-       float height=(current_face->size->metrics.ascender+current_face->size->metrics.descender+linegap/2.0)/64;
-       delete fnt;
+       float height=(current_face->size->metrics.ascender+current_face->size->metrics.descender+linegap)/64.0;
        return height;
 }
 
-
 fontRenderClass::~fontRenderClass()
 {
        singleLock s(ftlock);
+       while(font)
+       {
+               fontListEntry *f=font;
+               font=font->next;
+               delete f;
+       }
 //     auskommentiert weil freetype und enigma die kritische masse des suckens ueberschreiten. 
 //     FTC_Manager_Done(cacheManager);
 //     FT_Done_FreeType(library);
 }
 
-Font *fontRenderClass::getFont(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)
-               return 0;
-       return new Font(this, id, size * ((fontListEntry*)id)->scale / 100, tabwidth);
+       {
+               font = 0;
+               return -1;
+       }
+       font = new Font(this, id, size * ((fontListEntry*)id)->scale / 100, tabwidth);
+       return 0;
 }
 
+DEFINE_REF(Font);
+
 Font::Font(fontRenderClass *render, FTC_FaceID faceid, int isize, int tw): tabwidth(tw)
 {
        renderer=render;
@@ -235,7 +247,6 @@ Font::Font(fontRenderClass *render, FTC_FaceID faceid, int isize, int tw): tabwi
        height=isize;
        if (tabwidth==-1)
                tabwidth=8*isize;
-       ref=0;
 //     font.image_type |= ftc_image_flag_autohinted;
 }
 
@@ -248,17 +259,7 @@ Font::~Font()
 {
 }
 
-void Font::lock()
-{
-       ref++;
-}
-
-void Font::unlock()
-{
-       ref--;
-       if (!ref)
-               delete this;
-}
+DEFINE_REF(eTextPara);
 
 int eTextPara::appendGlyph(Font *current_font, FT_Face current_face, FT_UInt glyphIndex, int flags, int rflags)
 {
@@ -276,33 +277,36 @@ int eTextPara::appendGlyph(Font *current_font, FT_Face current_face, FT_UInt gly
                )
        {
                int cnt = 0;
-               glyphString::iterator i(glyphs.end());
-               --i;
-               while (i != glyphs.begin())
+               glyphString::reverse_iterator i(glyphs.rbegin());
+               while (i != glyphs.rend())
                {
                        if (i->flags&(GS_ISSPACE|GS_ISFIRST))
                                break;
                        cnt++;
-                       --i;
+                       ++i;
                } 
-               if (i != glyphs.begin() && ((i->flags&(GS_ISSPACE|GS_ISFIRST))==GS_ISSPACE) && (++i != glyphs.end()))           // skip space
+               if (i != glyphs.rend()
+                       && ((i->flags&(GS_ISSPACE|GS_ISFIRST))==GS_ISSPACE)
+                       && cnt )
                {
+                       --i;
                        int linelength=cursor.x()-i->x;
                        i->flags|=GS_ISFIRST;
                        ePoint offset=ePoint(i->x, i->y);
                        newLine(rflags);
                        offset-=cursor;
-                       while (i != glyphs.end())               // rearrange them into the next line
+                       do
                        {
                                i->x-=offset.x();
                                i->y-=offset.y();
                                i->bbox.moveBy(-offset.x(), -offset.y());
-                               ++i;
                        }
-                       cursor+=ePoint(linelength, 0);  // put the cursor after that line
-               } else
+                       while (i-- != glyphs.rbegin()); // rearrange them into the next line
+                       cursor+=ePoint(linelength, 0);  // put the cursor after that line
+               }
+               else
                {
-           if (cnt)
+                       if (cnt)
                        {
                                newLine(rflags);
                                flags|=GS_ISFIRST;
@@ -320,39 +324,47 @@ int eTextPara::appendGlyph(Font *current_font, FT_Face current_face, FT_UInt gly
        }
 
        pGlyph ng;
-
-       ng.bbox.setLeft( (flags&GS_ISFIRST|glyphs.empty()?cursor.x():cursor.x()-1) + glyph->left );
+       ng.bbox.setLeft( (flags&GS_ISFIRST|cursor.x()-1)+glyph->left );
        ng.bbox.setTop( cursor.y() - glyph->top );
        ng.bbox.setWidth( glyph->width );
        ng.bbox.setHeight( glyph->height );
 
-       xadvance+=kern;
-
-       ng.x=cursor.x()+kern;
+       xadvance += kern;
+       ng.bbox.setWidth(xadvance);
 
-       ng.y=cursor.y();
-       ng.w=xadvance;
-       ng.font=current_font;
-       ng.font->lock();
-       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;
                if ( i->bbox.left() < boundBox.left() )
                        boundBox.setLeft( i->bbox.left() );
                if ( i->bbox.top() < boundBox.top() )
@@ -363,7 +375,6 @@ 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() );
-       bboxValid=1;
 }
 
 void eTextPara::newLine(int flags)
@@ -373,7 +384,7 @@ void eTextPara::newLine(int flags)
        cursor.setX(left);
        previous=0;
        int linegap=current_face->size->metrics.height-(current_face->size->metrics.ascender+current_face->size->metrics.descender);
-       cursor+=ePoint(0, (current_face->size->metrics.ascender+current_face->size->metrics.descender+linegap*1/2)>>6);
+       cursor+=ePoint(0, (current_face->size->metrics.ascender+current_face->size->metrics.descender+linegap)>>6);
        if (maximum.height()<cursor.y())
                maximum.setHeight(cursor.y());
        previous=0;
@@ -382,47 +393,24 @@ void eTextPara::newLine(int flags)
 eTextPara::~eTextPara()
 {
        clear();
-       if (refcnt>=0)
-               eFatal("verdammt man der war noch gelockt :/\n");
 }
 
-void eTextPara::destroy()
+void eTextPara::setFont(const gFont *font)
 {
-       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");
-       Font *fnt=fontRenderClass::getInstance()->getFont(font.family.c_str(), font.pointSize);
+       ePtr<Font> fnt, replacement;
+       fontRenderClass::getInstance()->getFont(fnt, font->family.c_str(), font->pointSize);
        if (!fnt)
-               eWarning("FONT '%s' MISSING!", font.family.c_str());
-       setFont(fnt,
-               fontRenderClass::getInstance()->getFont(replacement_facename.c_str(), font.pointSize));
+               eWarning("FONT '%s' MISSING!", font->family.c_str());
+       fontRenderClass::getInstance()->getFont(replacement, replacement_facename.c_str(), font->pointSize);
+       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;
-       if (current_font && !current_font->ref)
-               delete current_font;
        current_font=fnt;
        replacement_font=replacement;
        singleLock s(ftlock);
@@ -454,13 +442,10 @@ 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;
                
@@ -487,7 +472,7 @@ int eTextPara::renderString(const eString &string, int rflags)
 
        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
                {
@@ -546,11 +531,14 @@ int eTextPara::renderString(const eString &string, int rflags)
 
        glyphs.reserve(uc_visual.size());
        
+       int nextflags = 0;
+       
        for (std::vector<unsigned long>::const_iterator i(uc_visual.begin());
                i != uc_visual.end(); ++i)
        {
                int isprintable=1;
-               int flags=0;
+               int flags = nextflags;
+               nextflags = 0;
                if (!(rflags&RS_DIRECT))
                {
                        switch (*i)
@@ -584,7 +572,7 @@ tab:                isprintable=0;
                        case '\n':
 newline:isprintable=0;
                                newLine(rflags);
-                               flags|=GS_ISFIRST;
+                               nextflags|=GS_ISFIRST;
                                break;
                        case '\r':
                        case 0x86: case 0xE086:
@@ -625,7 +613,7 @@ nprint:     isprintable=0;
        return 0;
 }
 
-void eTextPara::blit(gPixmapDC &dc, const ePoint &offset, const gRGB &background, const gRGB &foreground)
+void eTextPara::blit(gDC &dc, const ePoint &offset, const gRGB &background, const gRGB &foreground)
 {
        singleLock s(ftlock);
        
@@ -644,72 +632,94 @@ void eTextPara::blit(gPixmapDC &dc, const ePoint &offset, const gRGB &background
 
        ePtr<gPixmap> target;
        dc.getPixmap(target);
+       gSurface *surface = target->surface;
 
        register int opcode;
-       gColor *lookup8=0;
-       __u32 lookup32[16];
-               
-       if (target->bpp == 8)
+
+       gColor *lookup8, lookup8_invert[16];
+       gColor *lookup8_normal=0;
+
+       __u32 lookup32_normal[16], lookup32_invert[16], *lookup32;
+       
+       if (surface->bpp == 8)
        {
-               if (target->clut.data)
+               if (surface->clut.data)
                {
-                       lookup8=getColor(target->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;
-       } else if (target->bpp == 32)
+       } else if (surface->bpp == 32)
        {
                opcode=3;
-               if (target->clut.data)
+               if (surface->clut.data)
                {
-                       lookup8=getColor(target->clut, background, foreground).lookup;
+                       lookup8=getColor(surface->clut, background, foreground).lookup;
                        for (int i=0; i<16; ++i)
-                               lookup32[i]=((target->clut.data[lookup8[i]].a<<24)|
-                                       (target->clut.data[lookup8[i]].r<<16)|
-                                       (target->clut.data[lookup8[i]].g<<8)|
-                                       (target->clut.data[lookup8[i]].b))^0xFF000000;
+                               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", target->bpp);
+               eWarning("can't render to %dbpp", surface->bpp);
                return;
        }
        
-       eRect clip(0, 0, target->x, target->y);
-       clip&=dc.getClip();
-
-       int buffer_stride=target->stride;
+       gRegion area(eRect(0, 0, surface->x, surface->y));
+       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*)(target->data)+buffer_stride*ry+rx*target->bypp;
+               
+               __u8 *d=(__u8*)(surface->data)+buffer_stride*ry+rx*surface->bypp;
                __u8 *s=glyph_bitmap->buffer;
                register int sx=glyph_bitmap->width;
                int sy=glyph_bitmap->height;
-               if ((sy+ry) >= clip.bottom())
-                       sy=clip.bottom()-ry;
-               if ((sx+rx) >= clip.right())
-                       sx=clip.right()-rx;
-               if (rx < clip.left())
+               if ((sy+ry) >= clip.extends.bottom())
+                       sy=clip.extends.bottom()-ry;
+               if ((sx+rx) >= clip.extends.right())
+                       sx=clip.extends.right()-rx;
+               if (rx < clip.extends.left())
                {
-                       int diff=clip.left()-rx;
+                       int diff=clip.extends.left()-rx;
                        s+=diff;
                        sx-=diff;
                        rx+=diff;
-                       d+=diff*target->bypp;
+                       d+=diff*surface->bypp;
                }
-               if (ry < clip.top())
+               if (ry < clip.extends.top())
                {
-                       int diff=clip.top()-ry;
+                       int diff=clip.extends.top()-ry;
                        s+=diff*glyph_bitmap->pitch;
                        sy-=diff;
                        ry+=diff;
@@ -722,6 +732,7 @@ void eTextPara::blit(gPixmapDC &dc, const ePoint &offset, const gRGB &background
                                {
                                        register __u8 *td=d;
                                        register int ax;
+                                       
                                        for (ax=0; ax<sx; ax++)
                                        {       
                                                register int b=(*s++)>>4;
@@ -789,6 +800,7 @@ void eTextPara::realign(int dir)    // der code hier ist ein wenig merkwuerdig.
                        linelength+=c->w;
                        num++;
                }
+
                if (!num)               // line mit nur einem space
                        continue;
 
@@ -846,8 +858,8 @@ void eTextPara::clear()
 {
        singleLock s(ftlock);
 
-       for (glyphString::iterator i(glyphs.begin()); i!=glyphs.end(); ++i)
-               i->font->unlock();
+       current_font = 0;
+       replacement_font = 0;
 
        glyphs.clear();
 }