diff options
Diffstat (limited to 'tqtinterface/qt4/src/kernel/tqfontengine_x11.cpp')
| -rw-r--r-- | tqtinterface/qt4/src/kernel/tqfontengine_x11.cpp | 2745 |
1 files changed, 0 insertions, 2745 deletions
diff --git a/tqtinterface/qt4/src/kernel/tqfontengine_x11.cpp b/tqtinterface/qt4/src/kernel/tqfontengine_x11.cpp deleted file mode 100644 index 02cf60c..0000000 --- a/tqtinterface/qt4/src/kernel/tqfontengine_x11.cpp +++ /dev/null @@ -1,2745 +0,0 @@ -/**************************************************************************** -** -** ??? -** -** Copyright (C) 2003-2008 Trolltech ASA. All rights reserved. -** -** This file is part of the kernel module of the TQt GUI Toolkit. -** -** This file may be used under the terms of the GNU General -** Public License versions 2.0 or 3.0 as published by the Free -** Software Foundation and appearing in the files LICENSE.GPL2 -** and LICENSE.GPL3 included in the packaging of this file. -** Alternatively you may (at your option) use any later version -** of the GNU General Public License if such license has been -** publicly approved by Trolltech ASA (or its successors, if any) -** and the KDE Free TQt Foundation. -** -** Please review the following information to ensure GNU General -** Public Licensing requirements will be met: -** http://trolltech.com/products/qt/licenses/licensing/opensource/. -** If you are unsure which license is appropriate for your use, please -** review the following information: -** http://trolltech.com/products/qt/licenses/licensing/licensingoverview -** or contact the sales department at sales@trolltech.com. -** -** This file may be used under the terms of the Q Public License as -** defined by Trolltech ASA and appearing in the file LICENSE.TQPL -** included in the packaging of this file. Licensees holding valid TQt -** Commercial licenses may use this file in accordance with the TQt -** Commercial License Agreement provided with the Software. -** -** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, -** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted -** herein. -** -**********************************************************************/ - -#include "tqtglobaldefines.h" - -#ifdef USE_QT4 - -#include <Qt/qdatastream.h> - -#endif // USE_QT4 - -#ifdef USE_QT4 -#else // USE_QT4 -#include "tqfontengine_p.h" -#endif // USE_QT4 - -// #define FONTENGINE_DEBUG - -#include <tqwidget.h> -#include <tqcstring.h> -#include <tqtextcodec.h> - -#include "tqbitmap.h" -#include "tqfontdatabase.h" -#include "tqpaintdevice.h" -#include "tqpaintdevicemetrics.h" -#include "tqpainter.h" -#include "tqimage.h" - -#include "tqt_x11_p.h" - -#include "tqfont.h" -#include "tqtextengine_p.h" - -#include <private/tqunicodetables_p.h> - -#ifdef USE_QT4 -#include "tqfontengine_p.h" -#endif // USE_QT4 - -#include <limits.h> - -#ifdef USE_QT4 - -#else // USE_QT4 - -// defined in qfontdatbase_x11.cpp -extern int qt_mib_for_xlfd_encoding( const char *encoding ); -extern int qt_xlfd_encoding_id( const char *encoding ); - -extern void qt_draw_transformed_rect( TQPainter *p, int x, int y, int w, int h, bool fill ); - -static void drawLines( TQPainter *p, TQFontEngine *fe, int baseline, int x1, int w, int textFlags ) -{ - int lw = fe->lineThickness(); - if ( textFlags & TQt::Underline ) { - int pos = fe->underlinePosition(); - qt_draw_transformed_rect( p, x1, baseline+pos, w, lw, TRUE ); - } - if ( textFlags & TQt::Overline ) { - int pos = fe->ascent()+1; - if ( !pos ) pos = 1; - qt_draw_transformed_rect( p, x1, baseline-pos, w, lw, TRUE ); - } - if ( textFlags & TQt::StrikeOut ) { - int pos = fe->ascent()/3; - if ( !pos ) pos = 1; - qt_draw_transformed_rect( p, x1, baseline-pos, w, lw, TRUE ); - } -} - - -inline static void qSafeXDestroyImage( XImage *x ) -{ - if ( x->data ) { - free( x->data ); - x->data = 0; - } - XDestroyImage( x ); -} - -extern bool qt_xForm_helper( const TQWMatrix &trueMat, int xoffset, - int type, int depth, - uchar *dptr, int dbpl, int p_inc, int dHeight, - uchar *sptr, int sbpl, int sWidth, int sHeight - ); - -static TQBitmap transform(Display *dpy, const TQBitmap &source, int xoff, int yoff, int w, int h, const TQWMatrix &matrix) -{ - int ws = source.width(); - int hs = source.height(); - - bool invertible; - TQWMatrix mat = matrix.invert( &invertible ); // invert matrix - - if (!invertible ) - return TQBitmap(); - mat.translate(xoff, yoff); - - XImage *xi = XGetImage(dpy, source.handle(), 0, 0, ws, hs, AllPlanes, XYPixmap); - - if ( !xi ) - return TQBitmap(); - - int sbpl = xi->bytes_per_line; - uchar *sptr = (uchar *)xi->data; - - int dbpl = (w+7)/8; - int dbytes = dbpl*h; - - uchar *dptr = (uchar *)malloc( dbytes ); // create buffer for bits - memset( dptr, 0, dbytes ); - - int type = xi->bitmap_bit_order == MSBFirst ? TQT_XFORM_TYPE_MSBFIRST : TQT_XFORM_TYPE_LSBFIRST; - int xbpl, p_inc; - xbpl = (w+7)/8; - p_inc = dbpl - xbpl; - - bool ok = qt_xForm_helper( mat, xi->xoffset, type, 1, dptr, xbpl, p_inc, h, sptr, sbpl, ws, hs ); - qSafeXDestroyImage(xi); - TQBitmap bm; - if (ok) { - bm = TQBitmap( w, h, dptr, TQImage::systemBitOrder() != TQImage::BigEndian ); - } else { -#if defined(TQT_CHECK_RANGE) - qWarning( "TQFontEngineXft::tranform: xform failed"); -#endif - } - - free( dptr ); - return bm; -} - - -static void drawScaled(int x, int y, const TQTextEngine *engine, const TQScriptItem *si, int textFlags, - Display *dpy, GC gc, TQPaintDevice *pdev, TQFontEngine *fe, - const TQWMatrix &xmat, float scale) -{ - // font doesn't support transformations, need to do it by hand - int w = tqRound(si->width/scale); - int h = tqRound((si->ascent + si->descent + 1)/scale); - if (w == 0 || h == 0) - return; - TQWMatrix mat1 = xmat; - mat1.scale(scale, scale); - - w += h; // add some pixels to width because of italic correction - TQBitmap bm( w, h, TRUE ); // create bitmap - TQPainter paint; - paint.begin( &bm ); // draw text in bitmap - fe->draw( &paint, 0, si->ascent/scale, engine, si, textFlags ); - paint.end(); - - TQRect pdevRect; - if (pdev->devType() == TQInternal::Widget) - pdevRect = ((TQWidget *)pdev)->rect(); - else if (pdev->devType() == TQInternal::Pixmap) - pdevRect = ((TQPixmap *)pdev)->rect(); - else - return; - - - TQRect br = mat1.mapRect(TQRect(x, y - si->ascent, w, h)); - TQRect br2 = br & pdevRect; - if (br2.width() <= 0 || br2.height() <= 0 - || br2.width() >= 32768 || br2.height() >= 32768) - return; - TQWMatrix mat = TQT_TQWMATRIX_OBJECT(TQPixmap::trueMatrix( mat1, w, h )); - TQBitmap wx_bm = ::transform(dpy, bm, br2.x() - br.x(), br2.y() - br.y(), br2.width(), br2.height(), mat); - if ( wx_bm.isNull() ) - return; - - x = br2.x(); - y = br2.y(); - - TQt::HANDLE hd = pdev->handle(); - XSetFillStyle( dpy, gc, FillStippled ); - XSetStipple( dpy, gc, wx_bm.handle() ); - XSetTSOrigin( dpy, gc, x, y ); - XFillRectangle( dpy, hd, gc, x, y, wx_bm.width(), wx_bm.height() ); - XSetTSOrigin( dpy, gc, 0, 0 ); - XSetFillStyle( dpy, gc, FillSolid ); -} - - -TQFontEngine::~TQFontEngine() -{ -} - -int TQFontEngine::lineThickness() const -{ - // ad hoc algorithm - int score = fontDef.weight * fontDef.pixelSize; - int lw = score / 700; - - // looks better with thicker line for small pointsizes - if ( lw < 2 && score >= 1050 ) lw = 2; - if ( lw == 0 ) lw = 1; - - return lw; -} - -int TQFontEngine::underlinePosition() const -{ - int pos = ( ( lineThickness() * 2 ) + 3 ) / 6; - return pos ? pos : 1; -} - -// ------------------------------------------------------------------ -// The box font engine -// ------------------------------------------------------------------ - - -TQFontEngineBox::TQFontEngineBox( int size ) - : _size( size ) -{ - cache_cost = sizeof( TQFontEngineBox ); -} - -TQFontEngineBox::~TQFontEngineBox() -{ -} - -TQFontEngine::Error TQFontEngineBox::stringToCMap( const TQChar *, int len, glyph_t *glyphs, advance_t *advances, int *nglyphs, bool ) const -{ - if ( *nglyphs < len ) { - *nglyphs = len; - return OutOfMemory; - } - - memset( glyphs, 0, len * sizeof( glyph_t ) ); - *nglyphs = len; - - if ( advances ) { - for ( int i = 0; i < len; i++ ) - *(advances++) = _size; - } - return NoError; -} - -void TQFontEngineBox::draw( TQPainter *p, int x, int y, const TQTextEngine *engine, const TQScriptItem *si, int textFlags ) -{ - Display *dpy = TQPaintDevice::x11AppDisplay(); - TQt::HANDLE hd = p->tqdevice()->handle(); - GC gc = p->gc; - -#ifdef FONTENGINE_DEBUG - p->save(); - p->setBrush( TQt::white ); - glyph_metrics_t ci = boundingBox( glyphs, offsets, numGlyphs ); - p->drawRect( x + ci.x, y + ci.y, ci.width, ci.height ); - p->drawRect( x + ci.x, y + 50 + ci.y, ci.width, ci.height ); - qDebug("bounding rect=%d %d (%d/%d)", ci.x, ci.y, ci.width, ci.height ); - p->restore(); - int xp = x; - int yp = y; -#endif - - GlyphAttributes *glyphAttributes = engine->glyphAttributes( si ); - - if ( p->txop > TQPainter::TxTranslate ) { - int xp = x; - int yp = _size + 2; - int s = _size - 3; - for (int k = 0; k < si->num_glyphs; k++) { - if (!glyphAttributes[k].zeroWidth) - qt_draw_transformed_rect( p, xp, yp, s, s, FALSE ); - xp += _size; - } - } else { - if ( p->txop == TQPainter::TxTranslate ) - p->map( x, y, &x, &y ); - - XRectangle rects[64]; - - int gl = 0; - while (gl < si->num_glyphs) { - int toDraw = TQMIN(64, si->num_glyphs-gl); - int adv = toDraw*_size; - if (x + adv < SHRT_MAX && x > SHRT_MIN) { - int ng = 0; - for (int k = 0; k < toDraw; k++) { - if (!glyphAttributes[gl + k].zeroWidth) { - rects[ng].x = x + (k * _size); - rects[ng].y = y - _size + 2; - rects[ng].width = rects[k].height = _size - 3; - ++ng; - } - } - XDrawRectangles(dpy, hd, gc, rects, ng); - } - gl += toDraw; - x += adv; - } - } - - if ( textFlags != 0 ) - drawLines( p, this, y, x, si->num_glyphs*_size, textFlags ); - -#ifdef FONTENGINE_DEBUG - x = xp; - y = yp; - p->save(); - p->setPen( TQt::red ); - for ( int i = 0; i < numGlyphs; i++ ) { - glyph_metrics_t ci = boundingBox( glyphs[i] ); - x += offsets[i].x; - y += offsets[i].y; - p->drawRect( x + ci.x, y + 50 + ci.y, ci.width, ci.height ); - qDebug("bounding ci[%d]=%d %d (%d/%d) / %d %d offset=(%d/%d)", i, ci.x, ci.y, ci.width, ci.height, - ci.xoff, ci.yoff, offsets[i].x, offsets[i].y ); - x += ci.xoff; - y += ci.yoff; - } - p->restore(); -#endif -} - -glyph_metrics_t TQFontEngineBox::boundingBox( const glyph_t *, const advance_t *, const qoffset_t *, int numGlyphs ) -{ - glyph_metrics_t overall; - overall.x = overall.y = 0; - overall.width = _size*numGlyphs; - overall.height = _size; - overall.xoff = overall.width; - overall.yoff = 0; - return overall; -} - -glyph_metrics_t TQFontEngineBox::boundingBox( glyph_t ) -{ - return glyph_metrics_t( 0, _size, _size, _size, _size, 0 ); -} - - - -int TQFontEngineBox::ascent() const -{ - return _size; -} - -int TQFontEngineBox::descent() const -{ - return 0; -} - -int TQFontEngineBox::leading() const -{ - int l = tqRound( _size * 0.15 ); - return (l > 0) ? l : 1; -} - -int TQFontEngineBox::maxCharWidth() const -{ - return _size; -} - -int TQFontEngineBox::cmap() const -{ - return -1; -} - -const char *TQFontEngineBox::name() const -{ - return "null"; -} - -bool TQFontEngineBox::canRender( const TQChar *, int ) -{ - return TRUE; -} - -TQFontEngine::Type TQFontEngineBox::type() const -{ - return Box; -} - - - - -// ------------------------------------------------------------------ -// Xlfd cont engine -// ------------------------------------------------------------------ - -static inline XCharStruct *charStruct( XFontStruct *xfs, uint ch ) -{ - XCharStruct *xcs = 0; - unsigned char r = ch>>8; - unsigned char c = ch&0xff; - if ( r >= xfs->min_byte1 && - r <= xfs->max_byte1 && - c >= xfs->min_char_or_byte2 && - c <= xfs->max_char_or_byte2) { - if ( !xfs->per_char ) - xcs = &(xfs->min_bounds); - else { - xcs = xfs->per_char + ((r - xfs->min_byte1) * - (xfs->max_char_or_byte2 - - xfs->min_char_or_byte2 + 1)) + - (c - xfs->min_char_or_byte2); - if (xcs->width == 0 && xcs->ascent == 0 && xcs->descent == 0) - xcs = 0; - } - } - return xcs; -} - -TQFontEngineXLFD::TQFontEngineXLFD( XFontStruct *fs, const char *name, int mib ) - : _fs( fs ), _name( name ), _codec( 0 ), _scale( 1. ), _cmap( mib ) -{ - if ( _cmap ) _codec = TQTextCodec::codecForMib( _cmap ); - - cache_cost = (((fs->max_byte1 - fs->min_byte1) * - (fs->max_char_or_byte2 - fs->min_char_or_byte2 + 1)) + - fs->max_char_or_byte2 - fs->min_char_or_byte2); - cache_cost = ((fs->max_bounds.ascent + fs->max_bounds.descent) * - (fs->max_bounds.width * cache_cost / 8)); - lbearing = SHRT_MIN; - rbearing = SHRT_MIN; - -#if 1 - // Server side transformations do not seem to work correctly for - // all types of fonts (for example, it works for bdf/pcf fonts, - // but not for ttf). It also seems to be extermely server - // dependent. The best thing is to just disable server side - // transformations until either server support matures or we - // figure out a better way to do it. - xlfd_transformations = XlfdTrUnsupported; -#else - xlfd_transformations = XlfdTrUnknown; - - // Hummingbird's Exceed X server will substitute 'fixed' for any - // known fonts, and it doesn't seem to support transformations, so - // we should never try to use xlfd transformations with it - if (strstr(ServerVendor(TQPaintDevice::x11AppDisplay()), "Hummingbird")) - xlfd_transformations = XlfdTrUnsupported; -#endif -} - -TQFontEngineXLFD::~TQFontEngineXLFD() -{ - XFreeFont( TQPaintDevice::x11AppDisplay(), _fs ); - _fs = 0; - TransformedFont *trf = transformed_fonts; - while ( trf ) { - XUnloadFont( TQPaintDevice::x11AppDisplay(), trf->xlfd_font ); - TransformedFont *tmp = trf; - trf = trf->next; - delete tmp; - } -} - -TQFontEngine::Error TQFontEngineXLFD::stringToCMap( const TQChar *str, int len, glyph_t *glyphs, advance_t *advances, int *nglyphs, bool mirrored ) const -{ - if ( *nglyphs < len ) { - *nglyphs = len; - return OutOfMemory; - } - - if ( _codec ) { - bool haveNbsp = FALSE; - for ( int i = 0; i < len; i++ ) - if ( str[i].tqunicode() == 0xa0 ) { - haveNbsp = TRUE; - break; - } - - TQChar *chars = (TQChar *)str; - if ( haveNbsp || mirrored ) { - chars = (TQChar *)malloc( len*sizeof(TQChar) ); - for ( int i = 0; i < len; i++ ) - chars[i] = (str[i].tqunicode() == 0xa0 ? 0x20 : - (mirrored ? ::mirroredChar(str[i]).tqunicode() : str[i].tqunicode())); - } - _codec->fromUnicodeInternal( chars, glyphs, len ); - if (chars != str) - free( chars ); - } else { - glyph_t *g = glyphs + len; - const TQChar *c = str + len; - if ( mirrored ) { - while ( c != str ) - *(--g) = (--c)->tqunicode() == 0xa0 ? 0x20 : ::mirroredChar(*c).tqunicode(); - } else { - while ( c != str ) - *(--g) = (--c)->tqunicode() == 0xa0 ? 0x20 : c->tqunicode(); - } - } - *nglyphs = len; - - if ( advances ) { - glyph_t *g = glyphs + len; - advance_t *a = advances + len; - XCharStruct *xcs; - // inlined for better perfomance - if ( !_fs->per_char ) { - xcs = &_fs->min_bounds; - while ( a != advances ) - *(--a) = xcs->width; - } - else if ( !_fs->max_byte1 ) { - XCharStruct *base = _fs->per_char - _fs->min_char_or_byte2; - while ( g-- != glyphs ) { - unsigned int gl = *g; - xcs = (gl >= _fs->min_char_or_byte2 && gl <= _fs->max_char_or_byte2) ? - base + gl : 0; - *(--a) = (!xcs || (!xcs->width && !xcs->ascent && !xcs->descent)) ? _fs->ascent : xcs->width; - } - } - else { - while ( g != glyphs ) { - xcs = charStruct( _fs, *(--g) ); - *(--a) = (xcs ? xcs->width : _fs->ascent); - } - } - if ( _scale != 1. ) { - for ( int i = 0; i < len; i++ ) - advances[i] = tqRound(advances[i]*_scale); - } - } - return NoError; -} - -#if defined(TQ_C_CALLBACKS) -extern "C" { -#endif - -static bool x_font_load_error = FALSE; -static int x_font_errorhandler(Display *, XErrorEvent *) -{ - x_font_load_error = TRUE; - return 0; -} - -#if defined(TQ_C_CALLBACKS) -} -#endif - - -void TQFontEngineXLFD::draw( TQPainter *p, int x, int y, const TQTextEngine *engine, const TQScriptItem *si, int textFlags ) -{ - if ( !si->num_glyphs ) - return; - -// qDebug("TQFontEngineXLFD::draw( %d, %d, numglyphs=%d", x, y, si->num_glyphs ); - - Display *dpy = TQPaintDevice::x11AppDisplay(); - TQt::HANDLE hd = p->tqdevice()->handle(); - GC gc = p->gc; - - bool transform = FALSE; - int xorig = x; - int yorig = y; - - TQt::HANDLE font_id = _fs->fid; - if ( p->txop > TQPainter::TxTranslate || _scale < 0.9999 || _scale > 1.0001 ) { - bool degenerate = TQABS( p->m11()*p->m22() - p->m12()*p->m21() ) < 0.01; - if ( !degenerate && xlfd_transformations != XlfdTrUnsupported ) { - // need a transformed font from the server - TQCString xlfd_transformed = _name; - int field = 0; - char *data = xlfd_transformed.data(); - int pos = 0; - while ( field < 7 ) { - if ( data[pos] == '-' ) - field++; - pos++; - } - int endPos = pos; - while ( data[endPos] != '-' ) - endPos++; - float size = xlfd_transformed.mid( pos, endPos-pos ).toInt(); - float mat[4]; - mat[0] = p->m11()*size*_scale; - mat[1] = -p->m12()*size*_scale; - mat[2] = -p->m21()*size*_scale; - mat[3] = p->m22()*size*_scale; - - // check if we have it cached - TransformedFont *trf = transformed_fonts; - TransformedFont *prev = 0; - int i = 0; - while ( trf ) { - if ( trf->xx == mat[0] && - trf->xy == mat[1] && - trf->yx == mat[2] && - trf->yy == mat[3] ) - break; - TransformedFont *tmp = trf; - trf = trf->next; - if (i > 10) { - XUnloadFont( TQPaintDevice::x11AppDisplay(), tmp->xlfd_font ); - delete tmp; - prev->next = trf; - } else { - prev = tmp; - } - ++i; - } - if ( trf ) { - if ( prev ) { - // move to beginning of list - prev->next = trf->next; - trf->next = transformed_fonts; - transformed_fonts = trf; - } - font_id = trf->xlfd_font; - } else { - TQCString matrix="["; - for ( int i = 0; i < 4; i++ ) { - float f = mat[i]; - if ( f < 0 ) { - matrix += '~'; - f = -f; - } - matrix += TQString::number( f, 'f', 5 ).latin1(); - matrix += ' '; - } - matrix += ']'; - //qDebug("m: %2.2f %2.2f %2.2f %2.2f, matrix=%s", p->m11(), p->m12(), p->m21(), p->m22(), matrix.data()); - xlfd_transformed.replace( pos, endPos-pos, matrix ); - - x_font_load_error = FALSE; - XErrorHandler old_handler = XSetErrorHandler( x_font_errorhandler ); - font_id = XLoadFont( dpy, xlfd_transformed.data() ); - XSync( dpy, FALSE ); - XSetErrorHandler( old_handler ); - if ( x_font_load_error ) { - //qDebug( "couldn't load transformed font" ); - font_id = _fs->fid; - xlfd_transformations = XlfdTrUnsupported; - } else { - TransformedFont *trf = new TransformedFont; - trf->xx = mat[0]; - trf->xy = mat[1]; - trf->yx = mat[2]; - trf->yy = mat[3]; - trf->xlfd_font = font_id; - trf->next = transformed_fonts; - transformed_fonts = trf; - } - } - } - if ( degenerate || xlfd_transformations == XlfdTrUnsupported ) { - // XServer or font don't support server side transformations, need to do it by hand - float tmp = _scale; - _scale = 1.; - drawScaled(x, y, engine, si, textFlags, dpy, p->gc, p->tqdevice(), this, p->xmat, tmp); - _scale = tmp; - return; - } - transform = TRUE; - } else if ( p->txop == TQPainter::TxTranslate ) { - p->map( x, y, &x, &y ); - } - - XSetFont(dpy, gc, font_id); - -#ifdef FONTENGINE_DEBUG - p->save(); - p->setBrush( TQt::white ); - glyph_metrics_t ci = boundingBox( glyphs, advances, offsets, si->num_glyphs ); - p->drawRect( x + ci.x, y + ci.y, ci.width, ci.height ); - p->drawRect( x + ci.x, y + 100 + ci.y, ci.width, ci.height ); - qDebug("bounding rect=%d %d (%d/%d)", ci.x, ci.y, ci.width, ci.height ); - p->restore(); - int xp = x; - int yp = y; -#endif - - glyph_t *glyphs = engine->glyphs( si ); - advance_t *advances = engine->advances( si ); - qoffset_t *offsets = engine->offsets( si ); - - XChar2b ch[256]; - XChar2b *chars = ch; - if ( si->num_glyphs > 255 ) - chars = (XChar2b *)malloc( si->num_glyphs*sizeof(XChar2b) ); - - for (int i = 0; i < si->num_glyphs; i++) { - chars[i].byte1 = glyphs[i] >> 8; - chars[i].byte2 = glyphs[i] & 0xff; - } - - int xpos = x; - GlyphAttributes *glyphAttributes = engine->glyphAttributes( si ); - - if ( si->analysis.bidiLevel % 2 ) { - int i = si->num_glyphs; - while( i-- ) { - advance_t adv = advances[i]; - // qDebug("advance = %d/%d", adv.x, adv.y ); - x += adv; - glyph_metrics_t gi = boundingBox( glyphs[i] ); - int xp = x-offsets[i].x-gi.xoff; - int yp = y+offsets[i].y-gi.yoff; - if ( transform ) - p->map( xp, yp, &xp, &yp ); - if (!glyphAttributes[i].zeroWidth && xp < SHRT_MAX && xp > SHRT_MIN) - XDrawString16(dpy, hd, gc, xp, yp, chars+i, 1 ); - } - } else { - if ( transform || si->hasPositioning ) { - int i = 0; - while( i < si->num_glyphs ) { - int xp = x+offsets[i].x; - int yp = y+offsets[i].y; - if ( transform ) - p->map( xp, yp, &xp, &yp ); - if (!glyphAttributes[i].zeroWidth && xp < SHRT_MAX && xp > SHRT_MIN) - XDrawString16(dpy, hd, gc, xp, yp, chars+i, 1 ); - advance_t adv = advances[i]; - // qDebug("advance = %d/%d", adv.x, adv.y ); - x += adv; - i++; - } - } else { - // we can take a shortcut - int gl = 0; - while (gl < si->num_glyphs) { - int toDraw = TQMIN(64, si->num_glyphs-gl); - int adv = 0; - for (int i = gl; i < gl+toDraw; ++i) - adv += advances[i]; - if (x + adv < SHRT_MAX && x > SHRT_MIN) - XDrawString16(dpy, hd, gc, x, y, chars+gl, toDraw); - gl += toDraw; - x += adv; - } - } - } - - if ( chars != ch ) - free( chars ); - - if ( textFlags != 0 ) - drawLines( p, this, yorig, xorig, x-xpos, textFlags ); - -#ifdef FONTENGINE_DEBUG - x = xp; - y = yp; - p->save(); - p->setPen( TQt::red ); - for ( int i = 0; i < si->num_glyphs; i++ ) { - glyph_metrics_t ci = boundingBox( glyphs[i] ); - p->drawRect( x + ci.x + offsets[i].x, y + 100 + ci.y + offsets[i].y, ci.width, ci.height ); - qDebug("bounding ci[%d]=%d %d (%d/%d) / %d %d offs=(%d/%d) advance=(%d/%d)", i, ci.x, ci.y, ci.width, ci.height, - ci.xoff, ci.yoff, offsets[i].x, offsets[i].y, - advances[i].x, advances[i].y); - x += advances[i].x; - y += advances[i].y; - } - p->restore(); -#endif -} - -glyph_metrics_t TQFontEngineXLFD::boundingBox( const glyph_t *glyphs, const advance_t *advances, const qoffset_t *offsets, int numGlyphs ) -{ - int i; - - glyph_metrics_t overall; - int ymax = 0; - int xmax = 0; - for (i = 0; i < numGlyphs; i++) { - XCharStruct *xcs = charStruct( _fs, glyphs[i] ); - if (xcs) { - int x = overall.xoff + offsets[i].x - xcs->lbearing; - int y = overall.yoff + offsets[i].y - xcs->ascent; - overall.x = TQMIN( overall.x, x ); - overall.y = TQMIN( overall.y, y ); - xmax = TQMAX( xmax, overall.xoff + offsets[i].x + xcs->rbearing ); - ymax = TQMAX( ymax, y + xcs->ascent + xcs->descent ); - overall.xoff += tqRound(advances[i]/_scale); - } else { - int size = _fs->ascent; - overall.x = TQMIN(overall.x, overall.xoff ); - overall.y = TQMIN(overall.y, overall.yoff - size ); - ymax = TQMAX( ymax, overall.yoff ); - overall.xoff += size; - xmax = TQMAX( xmax, overall.xoff ); - } - } - overall.height = ymax - overall.y; - overall.width = xmax - overall.x; - - if ( _scale != 1. ) { - overall.x = tqRound(overall.x * _scale); - overall.y = tqRound(overall.y * _scale); - overall.height = tqRound(overall.height * _scale); - overall.width = tqRound(overall.width * _scale); - overall.xoff = tqRound(overall.xoff * _scale); - overall.yoff = tqRound(overall.yoff * _scale); - } - return overall; -} - -glyph_metrics_t TQFontEngineXLFD::boundingBox( glyph_t glyph ) -{ - glyph_metrics_t gm; - // ### scale missing! - XCharStruct *xcs = charStruct( _fs, glyph ); - if (xcs) { - gm = glyph_metrics_t( xcs->lbearing, -xcs->ascent, xcs->rbearing- xcs->lbearing, xcs->ascent + xcs->descent, xcs->width, 0 ); - } else { - int size = _fs->ascent; - gm = glyph_metrics_t( 0, size, size, size, size, 0 ); - } - if ( _scale != 1. ) { - gm.x = tqRound(gm.x * _scale); - gm.y = tqRound(gm.y * _scale); - gm.height = tqRound(gm.height * _scale); - gm.width = tqRound(gm.width * _scale); - gm.xoff = tqRound(gm.xoff * _scale); - gm.yoff = tqRound(gm.yoff * _scale); - } - return gm; -} - - -int TQFontEngineXLFD::ascent() const -{ - return tqRound(_fs->ascent*_scale); -} - -int TQFontEngineXLFD::descent() const -{ - return tqRound((_fs->descent-1)*_scale); -} - -int TQFontEngineXLFD::leading() const -{ - int l = tqRound((TQMIN(_fs->ascent, _fs->max_bounds.ascent) - + TQMIN(_fs->descent, _fs->max_bounds.descent)) * _scale * 0.15 ); - return (l > 0) ? l : 1; -} - -int TQFontEngineXLFD::maxCharWidth() const -{ - return tqRound(_fs->max_bounds.width*_scale); -} - - -// Loads the font for the specified script -static inline int maxIndex(XFontStruct *f) { - return (((f->max_byte1 - f->min_byte1) * - (f->max_char_or_byte2 - f->min_char_or_byte2 + 1)) + - f->max_char_or_byte2 - f->min_char_or_byte2); -} - -int TQFontEngineXLFD::minLeftBearing() const -{ - if ( lbearing == SHRT_MIN ) { - if ( _fs->per_char ) { - XCharStruct *cs = _fs->per_char; - int nc = maxIndex(_fs) + 1; - int mx = cs->lbearing; - - for (int c = 1; c < nc; c++) { - // ignore the bearings for characters whose ink is - // completely outside the normal bounding box - if ((cs[c].lbearing <= 0 && cs[c].rbearing <= 0) || - (cs[c].lbearing >= cs[c].width && cs[c].rbearing >= cs[c].width)) - continue; - - int nmx = cs[c].lbearing; - - if (nmx < mx) - mx = nmx; - } - - ((TQFontEngineXLFD *)this)->lbearing = mx; - } else - ((TQFontEngineXLFD *)this)->lbearing = _fs->min_bounds.lbearing; - } - return tqRound (lbearing*_scale); -} - -int TQFontEngineXLFD::minRightBearing() const -{ - if ( rbearing == SHRT_MIN ) { - if ( _fs->per_char ) { - XCharStruct *cs = _fs->per_char; - int nc = maxIndex(_fs) + 1; - int mx = cs->rbearing; - - for (int c = 1; c < nc; c++) { - // ignore the bearings for characters whose ink is - // completely outside the normal bounding box - if ((cs[c].lbearing <= 0 && cs[c].rbearing <= 0) || - (cs[c].lbearing >= cs[c].width && cs[c].rbearing >= cs[c].width)) - continue; - - int nmx = cs[c].rbearing; - - if (nmx < mx) - mx = nmx; - } - - ((TQFontEngineXLFD *)this)->rbearing = mx; - } else - ((TQFontEngineXLFD *)this)->rbearing = _fs->min_bounds.rbearing; - } - return tqRound (rbearing*_scale); -} - -int TQFontEngineXLFD::cmap() const -{ - return _cmap; -} - -const char *TQFontEngineXLFD::name() const -{ - return _name; -} - -bool TQFontEngineXLFD::canRender( const TQChar *string, int len ) -{ - glyph_t glyphs[256]; - int nglyphs = 255; - glyph_t *g = glyphs; - if ( stringToCMap( string, len, g, 0, &nglyphs, FALSE ) == OutOfMemory ) { - g = (glyph_t *)malloc( nglyphs*sizeof(glyph_t) ); - stringToCMap( string, len, g, 0, &nglyphs, FALSE ); - } - - bool allExist = TRUE; - for ( int i = 0; i < nglyphs; i++ ) { - if ( !g[i] || !charStruct( _fs, g[i] ) ) { - allExist = FALSE; - break; - } - } - - if ( g != glyphs ) - free( g ); - - return allExist; -} - - -void TQFontEngineXLFD::setScale( double scale ) -{ - _scale = scale; -} - - -TQFontEngine::Type TQFontEngineXLFD::type() const -{ - return XLFD; -} - - -// ------------------------------------------------------------------ -// LatinXLFD engine -// ------------------------------------------------------------------ - -static const int engine_array_inc = 4; - -TQFontEngineLatinXLFD::TQFontEngineLatinXLFD( XFontStruct *xfs, const char *name, - int mib ) -{ - _engines = new TQFontEngine*[ engine_array_inc ]; - _engines[0] = new TQFontEngineXLFD( xfs, name, mib ); - _count = 1; - - cache_cost = _engines[0]->cache_cost; - - memset( glyphIndices, 0, sizeof( glyphIndices ) ); - memset( glyphAdvances, 0, sizeof( glyphAdvances ) ); - euroIndex = 0; - euroAdvance = 0; -} - -TQFontEngineLatinXLFD::~TQFontEngineLatinXLFD() -{ - for ( int i = 0; i < _count; ++i ) { - delete _engines[i]; - _engines[i] = 0; - } - delete [] _engines; - _engines = 0; -} - -void TQFontEngineLatinXLFD::findEngine( const TQChar &ch ) -{ - if ( ch.tqunicode() == 0 ) return; - - static const char *alternate_encodings[] = { - "iso8859-1", - "iso8859-2", - "iso8859-3", - "iso8859-4", - "iso8859-9", - "iso8859-10", - "iso8859-13", - "iso8859-14", - "iso8859-15", - "hp-roman8" - }; - static const int mib_count = sizeof( alternate_encodings ) / sizeof( const char * ); - - // see if one of the above mibs can map the char we want - TQTextCodec *codec = 0; - int which = -1; - int i; - for ( i = 0; i < mib_count; ++i ) { - const int mib = qt_mib_for_xlfd_encoding( alternate_encodings[i] ); - bool skip = FALSE; - for ( int e = 0; e < _count; ++e ) { - if ( _engines[e]->cmap() == mib ) { - skip = TRUE; - break; - } - } - if ( skip ) continue; - - codec = TQTextCodec::codecForMib( mib ); - if ( codec && codec->canEncode( ch ) ) { - which = i; - break; - } - } - - if ( ! codec || which == -1 ) - return; - - const int enc_id = qt_xlfd_encoding_id( alternate_encodings[which] ); - TQFontDef req = fontDef; - TQFontEngine *engine = TQFontDatabase::findFont( TQFont::Latin, 0, req, enc_id ); - if ( ! engine ) { - req.family = TQString::null; - engine = TQFontDatabase::findFont( TQFont::Latin, 0, req, enc_id ); - if ( ! engine ) return; - } - engine->setScale( scale() ); - - if ( ! ( _count % engine_array_inc ) ) { - // grow the engines array - TQFontEngine **old = _engines; - int new_size = - ( ( ( _count+engine_array_inc ) / engine_array_inc ) * engine_array_inc ); - _engines = new TQFontEngine*[new_size]; - for ( i = 0; i < _count; ++i ) - _engines[i] = old[i]; - delete [] old; - } - - _engines[_count] = engine; - const int hi = _count << 8; - ++_count; - - unsigned short chars[0x201]; - glyph_t glyphs[0x201]; - advance_t advances[0x201]; - for ( i = 0; i < 0x200; ++i ) - chars[i] = i; - chars[0x200] = 0x20ac; - int glyphCount = 0x201; - engine->stringToCMap( (const TQChar *) chars, 0x201, glyphs, advances, &glyphCount, FALSE ); - - // merge member data with the above - for ( i = 0; i < 0x200; ++i ) { - if ( glyphIndices[i] != 0 || glyphs[i] == 0 ) continue; - glyphIndices[i] = glyphs[i] >= 0x2100 ? glyphs[i] : hi | glyphs[i]; - glyphAdvances[i] = advances[i]; - } - if (!euroIndex && glyphs[0x200]) { - euroIndex = hi | glyphs[0x200]; - euroAdvance = advances[0x200]; - } -} - -TQFontEngine::Error -TQFontEngineLatinXLFD::stringToCMap( const TQChar *str, int len, glyph_t *glyphs, - advance_t *advances, int *nglyphs, bool mirrored ) const -{ - if ( *nglyphs < len ) { - *nglyphs = len; - return OutOfMemory; - } - - int i; - bool missing = FALSE; - const TQChar *c = str+len; - glyph_t *g = glyphs+len; - if ( advances ) { - int asc = ascent(); - advance_t *a = advances+len; - if ( mirrored ) { - while ( c != str ) { - --c; - --g; - --a; - if ( c->tqunicode() < 0x200 ) { - unsigned short ch = ::mirroredChar(*c).tqunicode(); - *g = glyphIndices[ch]; - *a = glyphAdvances[ch]; - } else { - if ( c->tqunicode() == 0x20ac ) { - *g = euroIndex; - *a = euroAdvance; - } else { - *g = 0; - *a = asc; - } - } - missing = ( missing || ( *g == 0 ) ); - } - } else { - while ( c != str ) { - --c; - --g; - --a; - if ( c->tqunicode() < 0x200 ) { - *g = glyphIndices[c->tqunicode()]; - *a = glyphAdvances[c->tqunicode()]; - } else { - if ( c->tqunicode() == 0x20ac ) { - *g = euroIndex; - *a = euroAdvance; - } else { - *g = 0; - *a = asc; - } - } - missing = ( missing || ( *g == 0 ) ); - } - } - } else { - if ( mirrored ) { - while ( c != str ) { - --c; - --g; - *g = ( ( c->tqunicode() < 0x200 ) ? glyphIndices[::mirroredChar(*c).tqunicode()] - : (c->tqunicode() == 0x20ac) ? euroIndex : 0 ); - missing = ( missing || ( *g == 0 ) ); - } - } else { - while ( c != str ) { - --c; - --g; - *g = ( ( c->tqunicode() < 0x200 ) ? glyphIndices[c->tqunicode()] - : (c->tqunicode() == 0x20ac) ? euroIndex : 0 ); - missing = ( missing || ( *g == 0 ) ); - } - } - } - - if ( missing ) { - for ( i = 0; i < len; ++i ) { - unsigned short uc = str[i].tqunicode(); - if ( glyphs[i] != 0 || (uc >= 0x200 && uc != 0x20ac) ) - continue; - - TQFontEngineLatinXLFD *that = (TQFontEngineLatinXLFD *) this; - that->findEngine( str[i] ); - glyphs[i] = (uc == 0x20ac ? euroIndex : that->glyphIndices[uc]); - if ( advances ) - advances[i] = (uc == 0x20ac ? euroAdvance : glyphAdvances[uc]); - } - } - - *nglyphs = len; - return NoError; -} - -void TQFontEngineLatinXLFD::draw( TQPainter *p, int x, int y, const TQTextEngine *engine, - const TQScriptItem *si, int textFlags ) -{ - if ( !si->num_glyphs ) return; - - glyph_t *glyphs = engine->glyphs( si ); - advance_t *advances = engine->advances( si ); - int which = glyphs[0] >> 8; - if (which > 0x20) - which = 0; - - int start = 0; - int end, i; - for ( end = 0; end < si->num_glyphs; ++end ) { - int e = glyphs[end] >> 8; - if (e > 0x20) - e = 0; - if ( e == which ) continue; - - // set the high byte to zero - if (which != 0) { - for ( i = start; i < end; ++i ) - glyphs[i] = glyphs[i] & 0xff; - } - - // draw the text - TQScriptItem si2 = *si; - si2.glyph_data_offset = si->glyph_data_offset + start; - si2.num_glyphs = end - start; - _engines[which]->draw( p, x, y, engine, &si2, textFlags ); - - // reset the high byte for all glyphs and advance to the next sub-string - const int hi = which << 8; - for ( i = start; i < end; ++i ) { - glyphs[i] = hi | glyphs[i]; - x += advances[i]; - } - - // change engine - start = end; - which = e; - } - - // set the high byte to zero - if (which != 0) { - for ( i = start; i < end; ++i ) - glyphs[i] = glyphs[i] & 0xff; - } - // draw the text - TQScriptItem si2 = *si; - si2.glyph_data_offset = si->glyph_data_offset + start; - si2.num_glyphs = end - start; - _engines[which]->draw( p, x, y, engine, &si2, textFlags ); - - // reset the high byte for all glyphs - if (which != 0) { - const int hi = which << 8; - for ( i = start; i < end; ++i ) - glyphs[i] = hi | glyphs[i]; - } -} - -glyph_metrics_t TQFontEngineLatinXLFD::boundingBox( const glyph_t *glyphs_const, - const advance_t *advances, - const qoffset_t *offsets, - int numGlyphs ) -{ - if ( numGlyphs <= 0 ) return glyph_metrics_t(); - - glyph_metrics_t overall; - - glyph_t *glyphs = (glyph_t *) glyphs_const; - int which = glyphs[0] >> 8; - if (which > 0x20) - which = 0; - - int start = 0; - int end, i; - for ( end = 0; end < numGlyphs; ++end ) { - int e = glyphs[end] >> 8; - if (e > 0x20) - e = 0; - if ( e == which ) continue; - - // set the high byte to zero - if (which != 0) { - for ( i = start; i < end; ++i ) - glyphs[i] = glyphs[i] & 0xff; - } - - // merge the bounding box for this run - const glyph_metrics_t gm = - _engines[which]->boundingBox( glyphs + start, - advances + start, - offsets + start, - end - start ); - - overall.x = TQMIN( overall.x, gm.x ); - overall.y = TQMIN( overall.y, gm.y ); - overall.width = overall.xoff + gm.width; - overall.height = TQMAX( overall.height + overall.y, gm.height + gm.y ) - - TQMIN( overall.y, gm.y ); - overall.xoff += gm.xoff; - overall.yoff += gm.yoff; - - // reset the high byte for all glyphs - if (which != 0) { - const int hi = which << 8; - for ( i = start; i < end; ++i ) - glyphs[i] = hi | glyphs[i]; - } - - // change engine - start = end; - which = e; - } - - // set the high byte to zero - if (which != 0) { - for ( i = start; i < end; ++i ) - glyphs[i] = glyphs[i] & 0xff; - } - - // merge the bounding box for this run - const glyph_metrics_t gm = - _engines[which]->boundingBox( glyphs + start, - advances + start, - offsets + start, - end - start ); - - overall.x = TQMIN( overall.x, gm.x ); - overall.y = TQMIN( overall.y, gm.y ); - overall.width = overall.xoff + gm.width; - overall.height = TQMAX( overall.height + overall.y, gm.height + gm.y ) - - TQMIN( overall.y, gm.y ); - overall.xoff += gm.xoff; - overall.yoff += gm.yoff; - - // reset the high byte for all glyphs - if (which != 0) { - const int hi = which << 8; - for ( i = start; i < end; ++i ) - glyphs[i] = hi | glyphs[i]; - } - - return overall; -} - -glyph_metrics_t TQFontEngineLatinXLFD::boundingBox( glyph_t glyph ) -{ - int engine = glyph >> 8; - if (engine > 0x20) - engine = 0; - TQ_ASSERT( engine < _count ); - return _engines[engine]->boundingBox( engine > 0 ? glyph & 0xff : glyph ); -} - -int TQFontEngineLatinXLFD::ascent() const -{ - return _engines[0]->ascent(); -} - -int TQFontEngineLatinXLFD::descent() const -{ - return _engines[0]->descent(); -} - -int TQFontEngineLatinXLFD::leading() const -{ - return _engines[0]->leading(); -} - -int TQFontEngineLatinXLFD::maxCharWidth() const -{ - return _engines[0]->maxCharWidth(); -} - -int TQFontEngineLatinXLFD::minLeftBearing() const -{ - return _engines[0]->minLeftBearing(); -} - -int TQFontEngineLatinXLFD::minRightBearing() const -{ - return _engines[0]->minRightBearing(); -} - -const char *TQFontEngineLatinXLFD::name() const -{ - return _engines[0]->name(); -} - -bool TQFontEngineLatinXLFD::canRender( const TQChar *string, int len ) -{ - bool all = TRUE; - int i; - for ( i = 0; i < len; ++i ) { - if ( string[i].tqunicode() >= 0x200 || - glyphIndices[string[i].tqunicode()] == 0 ) { - if (string[i].tqunicode() != 0x20ac || euroIndex == 0) - all = FALSE; - break; - } - } - - if ( all ) - return TRUE; - - all = TRUE; - for ( i = 0; i < len; ++i ) { - if ( string[i].tqunicode() >= 0x200 ) { - if (string[i].tqunicode() == 0x20ac) { - if (euroIndex) - continue; - - findEngine(string[i]); - if (euroIndex) - continue; - } - all = FALSE; - break; - } - if ( glyphIndices[string[i].tqunicode()] != 0 ) continue; - - findEngine( string[i] ); - if ( glyphIndices[string[i].tqunicode()] == 0 ) { - all = FALSE; - break; - } - } - - return all; -} - -void TQFontEngineLatinXLFD::setScale( double scale ) -{ - int i; - for ( i = 0; i < _count; ++i ) - _engines[i]->setScale( scale ); - unsigned short chars[0x200]; - for ( i = 0; i < 0x200; ++i ) - chars[i] = i; - int glyphCount = 0x200; - _engines[0]->stringToCMap( (const TQChar *)chars, 0x200, - glyphIndices, glyphAdvances, &glyphCount, FALSE ); -} - - -// ------------------------------------------------------------------ -// Xft cont engine -// ------------------------------------------------------------------ -// #define FONTENGINE_DEBUG - -#ifndef TQT_NO_XFTFREETYPE -class TQ_HackPaintDevice : public TQPaintDevice -{ -public: - inline TQ_HackPaintDevice() : TQPaintDevice( 0 ) {} - inline XftDraw *xftDrawHandle() const { - return (XftDraw *)rendhd; - } - -}; - -#ifdef TQT_XFT2 -static inline void getGlyphInfo( XGlyphInfo *xgi, XftFont *font, int glyph ) -{ - FT_UInt x = glyph; - XftGlyphExtents( TQPaintDevice::x11AppDisplay(), font, &x, 1, xgi ); -} -#else -static inline XftFontStruct *getFontStruct( XftFont *font ) -{ - if (font->core) - return 0; - return font->u.ft.font; -} - -static inline void getGlyphInfo(XGlyphInfo *xgi, XftFont *font, int glyph) -{ - - XftTextExtents32(TQPaintDevice::x11AppDisplay(), font, (XftChar32 *) &glyph, 1, xgi); -} -#endif // TQT_XFT2 - -static inline FT_Face lockFTFace( XftFont *font ) -{ -#ifdef TQT_XFT2 - return XftLockFace( font ); -#else - if (font->core) return 0; - return font->u.ft.font->face; -#endif // TQT_XFT2 -} - -static inline void unlockFTFace( XftFont *font ) -{ -#ifdef TQT_XFT2 - XftUnlockFace( font ); -#else - TQ_UNUSED( font ); -#endif // TQT_XFT2 -} - - - -TQFontEngineXft::TQFontEngineXft( XftFont *font, XftPattern *pattern, int cmap ) - : _font( font ), _pattern( pattern ), _openType( 0 ), _cmap( cmap ) -{ - _face = lockFTFace( _font ); - -#ifndef TQT_XFT2 - XftFontStruct *xftfs = getFontStruct( _font ); - if ( xftfs ) { - // dirty hack: we set the charmap in the Xftfreetype to -1, so - // XftFreetype assumes no encoding and really draws glyph - // indices. The FT_Face still has the Unicode encoding to we - // can convert from Unicode to glyph index - xftfs->charmap = -1; - } -#else - _cmap = -1; - // Xft maps Unicode and adobe roman for us. - for (int i = 0; i < _face->num_charmaps; ++i) { - FT_CharMap cm = _face->charmaps[i]; -// qDebug("font has charmap %x", cm->encoding); - if (cm->encoding == ft_encoding_adobe_custom - || cm->encoding == ft_encoding_symbol) { -// qDebug("font has adobe custom or ms symbol charmap"); - _cmap = i; - break; - } - } -#endif // TQT_XFT2 - - - cache_cost = _font->height * _font->max_advance_width * - ( _face ? _face->num_glyphs : 1024 ); - - // if the Xft font is not antialiased, it uses bitmaps instead of - // 8-bit alpha maps... adjust the cache_cost to reflect this - Bool antialiased = TRUE; - if ( XftPatternGetBool( pattern, XFT_ANTIALIAS, - 0, &antialiased ) == XftResultMatch && - ! antialiased ) { - cache_cost /= 8; - } - lbearing = SHRT_MIN; - rbearing = SHRT_MIN; - - memset( widthCache, 0, sizeof(widthCache) ); - memset( cmapCache, 0, sizeof(cmapCache) ); -} - -TQFontEngineXft::~TQFontEngineXft() -{ - delete _openType; - unlockFTFace( _font ); - - XftFontClose( TQPaintDevice::x11AppDisplay(),_font ); - XftPatternDestroy( _pattern ); - _font = 0; - _pattern = 0; - TransformedFont *trf = transformed_fonts; - while ( trf ) { - XftFontClose( TQPaintDevice::x11AppDisplay(), trf->xft_font ); - TransformedFont *tmp = trf; - trf = trf->next; - delete tmp; - } -} - -#ifdef TQT_XFT2 -static glyph_t getAdobeCharIndex(XftFont *font, int cmap, uint ucs4) -{ - FT_Face _face = XftLockFace( font ); - FT_Set_Charmap(_face, _face->charmaps[cmap]); - glyph_t g = FT_Get_Char_Index(_face, ucs4); - XftUnlockFace(font); - return g; -} -#endif - -TQFontEngine::Error TQFontEngineXft::stringToCMap( const TQChar *str, int len, glyph_t *glyphs, advance_t *advances, int *nglyphs, bool mirrored ) const -{ - if ( *nglyphs < len ) { - *nglyphs = len; - return OutOfMemory; - } - -#ifdef TQT_XFT2 - if (_cmap != -1) { - for ( int i = 0; i < len; ++i ) { - unsigned short uc = str[i].tqunicode(); - if (mirrored) - uc = ::mirroredChar(str[i]).tqunicode(); - glyphs[i] = uc < cmapCacheSize ? cmapCache[uc] : 0; - if ( !glyphs[i] ) { - glyph_t glyph = XftCharIndex(0, _font, uc); - if (!glyph) - glyph = getAdobeCharIndex(_font, _cmap, uc); - glyphs[i] = glyph; - if ( uc < cmapCacheSize ) - ((TQFontEngineXft *)this)->cmapCache[uc] = glyph; - } - } - } else if ( mirrored ) { - for ( int i = 0; i < len; ++i ) { - unsigned short uc = ::mirroredChar(str[i]).tqunicode(); - glyphs[i] = uc < cmapCacheSize ? cmapCache[uc] : 0; - if ( !glyphs[i] ) { - if (uc == 0xa0) - uc = 0x20; - glyph_t glyph = XftCharIndex(0, _font, uc); - glyphs[i] = glyph; - if ( uc < cmapCacheSize ) - ((TQFontEngineXft *)this)->cmapCache[uc] = glyph; - } - } - } else { - for ( int i = 0; i < len; ++i ) { - unsigned short uc = str[i].tqunicode(); - glyphs[i] = uc < cmapCacheSize ? cmapCache[uc] : 0; - if ( !glyphs[i] ) { - if (uc == 0xa0) - uc = 0x20; - glyph_t glyph = XftCharIndex(0, _font, uc); - glyphs[i] = glyph; - if ( uc < cmapCacheSize ) - ((TQFontEngineXft *)this)->cmapCache[uc] = glyph; - } - } - } - - if ( advances ) { - for ( int i = 0; i < len; i++ ) { - FT_UInt glyph = *(glyphs + i); - advances[i] = (glyph < widthCacheSize) ? widthCache[glyph] : 0; - if ( !advances[i] ) { - XGlyphInfo gi; - XftGlyphExtents( TQPaintDevice::x11AppDisplay(), _font, &glyph, 1, &gi ); - advances[i] = gi.xOff; - if ( glyph < widthCacheSize && gi.xOff > 0 && gi.xOff < 0x100 ) - ((TQFontEngineXft *)this)->widthCache[glyph] = gi.xOff; - } - } - if ( _scale != 1. ) { - for ( int i = 0; i < len; i++ ) - advances[i] = tqRound(advances[i]*_scale); - } - } -#else - if ( !_face ) { - if ( mirrored ) { - for ( int i = 0; i < len; i++ ) - glyphs[i] = ::mirroredChar(str[i]).tqunicode(); - } else { - for ( int i = 0; i < len; i++ ) - glyphs[i] = str[i].tqunicode(); - } - } else { - if ( _cmap == 1 ) { - // symbol font - for ( int i = 0; i < len; i++ ) { - unsigned short uc = str[i].tqunicode(); - glyphs[i] = uc < cmapCacheSize ? cmapCache[uc] : 0; - if ( !glyphs[i] ) { - glyph_t glyph = FT_Get_Char_Index( _face, uc ); - if(!glyph && uc < 0x100) - glyph = FT_Get_Char_Index( _face, uc+0xf000 ); - glyphs[i] = glyph; - if ( uc < cmapCacheSize ) - ((TQFontEngineXft *)this)->cmapCache[uc] = glyph; - } - } - } else if ( mirrored ) { - for ( int i = 0; i < len; i++ ) { - unsigned short uc = ::mirroredChar(str[i]).tqunicode(); - glyphs[i] = uc < cmapCacheSize ? cmapCache[uc] : 0; - if ( !glyphs[i] ) { - glyph_t glyph = FT_Get_Char_Index( _face, uc ); - glyphs[i] = glyph; - if ( uc < cmapCacheSize ) - ((TQFontEngineXft *)this)->cmapCache[uc] = glyph; - } - } - } else { - for ( int i = 0; i < len; i++ ) { - unsigned short uc = str[i].tqunicode(); - glyphs[i] = uc < cmapCacheSize ? cmapCache[uc] : 0; - if ( !glyphs[i] ) { - glyph_t glyph = FT_Get_Char_Index( _face, uc ); - glyphs[i] = glyph; - if ( uc < cmapCacheSize ) - ((TQFontEngineXft *)this)->cmapCache[uc] = glyph; - } - } - } - } - - if ( advances ) { - for ( int i = 0; i < len; i++ ) { - XftChar16 glyph = *(glyphs + i); - advances[i] = (glyph < widthCacheSize) ? widthCache[glyph] : 0; - if ( !advances[i] ) { - XGlyphInfo gi; - XftTextExtents16(TQPaintDevice::x11AppDisplay(), _font, &glyph, 1, &gi); - advances[i] = gi.xOff; - if ( glyph < widthCacheSize && gi.xOff > 0 && gi.xOff < 0x100 ) - ((TQFontEngineXft *)this)->widthCache[glyph] = gi.xOff; - } - } - if ( _scale != 1. ) { - for ( int i = 0; i < len; i++ ) - advances[i] = tqRound(advances[i]*_scale); - } - } -#endif // TQT_XFT2 - - *nglyphs = len; - return NoError; -} - - -void TQFontEngineXft::recalcAdvances( int len, glyph_t *glyphs, advance_t *advances ) -{ - -#ifdef TQT_XFT2 - for ( int i = 0; i < len; i++ ) { - FT_UInt glyph = *(glyphs + i); - advances[i] = (glyph < widthCacheSize) ? widthCache[glyph] : 0; - if ( !advances[i] ) { - XGlyphInfo gi; - XftGlyphExtents( TQPaintDevice::x11AppDisplay(), _font, &glyph, 1, &gi ); - advances[i] = gi.xOff; - if ( glyph < widthCacheSize && gi.xOff > 0 && gi.xOff < 0x100 ) - ((TQFontEngineXft *)this)->widthCache[glyph] = gi.xOff; - } - if ( _scale != 1. ) { - for ( int i = 0; i < len; i++ ) - advances[i] = tqRound(advances[i]*_scale); - } - } -#else - for ( int i = 0; i < len; i++ ) { - XftChar16 glyph = *(glyphs + i); - advances[i] = (glyph < widthCacheSize) ? widthCache[glyph] : 0; - if ( !advances[i] ) { - XGlyphInfo gi; - XftTextExtents16(TQPaintDevice::x11AppDisplay(), _font, &glyph, 1, &gi); - advances[i] = gi.xOff; - if ( glyph < widthCacheSize && gi.xOff > 0 && gi.xOff < 0x100 ) - ((TQFontEngineXft *)this)->widthCache[glyph] = gi.xOff; - } - } - if ( _scale != 1. ) { - for ( int i = 0; i < len; i++ ) - advances[i] = tqRound(advances[i]*_scale); - } -#endif // TQT_XFT2 -} - -//#define FONTENGINE_DEBUG -void TQFontEngineXft::draw( TQPainter *p, int x, int y, const TQTextEngine *engine, const TQScriptItem *si, int textFlags ) -{ - if ( !si->num_glyphs ) - return; - - Display *dpy = TQPaintDevice::x11AppDisplay(); - - int xorig = x; - int yorig = y; - - GlyphAttributes *glyphAttributes = engine->glyphAttributes( si ); - - XftFont *fnt = _font; - bool transform = FALSE; - if ( p->txop >= TQPainter::TxScale || p->rop != TQt::CopyROP || _scale < 0.9999 || _scale > 1.001) { - bool can_scale = (_face->face_flags & FT_FACE_FLAG_SCALABLE) && p->rop == TQt::CopyROP; - double size = (p->m11()*p->m22() - p->m12()*p->m21())*_scale*_scale*fontDef.pixelSize*fontDef.pixelSize; - if (size > 256*256 || _scale < .9999 || _scale > 1.001) - can_scale = FALSE; - if (!can_scale) { - // font doesn't support transformations, need to do it by hand - float tmp = _scale; - _scale = 1.; - drawScaled(x, y, engine, si, textFlags, dpy, p->gc, p->tqdevice(), this, p->xmat, tmp); - _scale = tmp; - return; - } - - XftMatrix *mat = 0; - XftPatternGetMatrix( _pattern, XFT_MATRIX, 0, &mat ); - XftMatrix m2; - m2.xx = p->m11()*_scale; - m2.xy = -p->m21()*_scale; - m2.yx = -p->m12()*_scale; - m2.yy = p->m22()*_scale; - - // check if we have it cached - TransformedFont *trf = transformed_fonts; - TransformedFont *prev = 0; - int i = 0; - while ( trf ) { - if ( trf->xx == (float)m2.xx && - trf->xy == (float)m2.xy && - trf->yx == (float)m2.yx && - trf->yy == (float)m2.yy ) - break; - TransformedFont *tmp = trf; - trf = trf->next; - if (i > 10) { - XftFontClose( TQPaintDevice::x11AppDisplay(), tmp->xft_font ); - delete tmp; - prev->next = trf; - } else { - prev = tmp; - } - ++i; - } - if ( trf ) { - if ( prev ) { - // move to beginning of list - prev->next = trf->next; - trf->next = transformed_fonts; - transformed_fonts = trf; - } - fnt = trf->xft_font; - } else { - if ( mat ) - XftMatrixMultiply( &m2, &m2, mat ); - - XftPattern *pattern = XftPatternDuplicate( _pattern ); - XftPatternDel( pattern, XFT_MATRIX ); - XftPatternAddMatrix( pattern, XFT_MATRIX, &m2 ); - - fnt = XftFontOpenPattern( dpy, pattern ); -#ifndef TQT_XFT2 - XftFontStruct *xftfs = getFontStruct( fnt ); - if ( xftfs ) { - // dirty hack: we set the charmap in the Xftfreetype to -1, so - // XftFreetype assumes no encoding and really draws glyph - // indices. The FT_Face still has the Unicode encoding to we - // can convert from Unicode to glyph index - xftfs->charmap = -1; - } -#endif // TQT_XFT2 - TransformedFont *trf = new TransformedFont; - trf->xx = (float)m2.xx; - trf->xy = (float)m2.xy; - trf->yx = (float)m2.yx; - trf->yy = (float)m2.yy; - trf->xft_font = fnt; - trf->next = transformed_fonts; - transformed_fonts = trf; - } - transform = TRUE; - } else if ( p->txop == TQPainter::TxTranslate ) { - p->map( x, y, &x, &y ); - } - - glyph_t *glyphs = engine->glyphs( si ); - advance_t *advances = engine->advances( si ); - qoffset_t *offsets = engine->offsets( si ); - - const TQColor &pen = p->cpen.color(); - XftDraw *draw = ((TQ_HackPaintDevice *)p->pdev)->xftDrawHandle(); - - XftColor col; - col.color.red = pen.red () | pen.red() << 8; - col.color.green = pen.green () | pen.green() << 8; - col.color.blue = pen.blue () | pen.blue() << 8; - col.color.alpha = 0xffff; - col.pixel = pen.pixel(); -#ifdef FONTENGINE_DEBUG - qDebug("===== drawing %d glyphs reverse=%s ======", si->num_glyphs, si->analysis.bidiLevel % 2?"TRUE":"FALSE" ); - p->save(); - p->setBrush( TQt::white ); - glyph_metrics_t ci = boundingBox( glyphs, advances, offsets, si->num_glyphs ); - p->drawRect( x + ci.x, y + ci.y, ci.width, ci.height ); - p->drawRect( x + ci.x, y + 100 + ci.y, ci.width, ci.height ); - qDebug("bounding rect=%d %d (%d/%d)", ci.x, ci.y, ci.width, ci.height ); - p->restore(); - int yp = y; - int xp = x; -#endif - - if ( textFlags != 0 ) - drawLines( p, this, yorig, xorig, si->width, textFlags ); - - - if ( si->isSpace ) - return; - - if ( transform || si->hasPositioning ) { - if ( si->analysis.bidiLevel % 2 ) { - int i = si->num_glyphs; - while( i-- ) { - int xp = x + offsets[i].x; - int yp = y + offsets[i].y; - if ( transform ) - p->map( xp, yp, &xp, &yp ); -#ifdef TQT_XFT2 - FT_UInt glyph = *(glyphs + i); - if (!glyphAttributes[i].zeroWidth && xp < SHRT_MAX && xp > SHRT_MIN) - XftDrawGlyphs( draw, &col, fnt, xp, yp, &glyph, 1 ); -#else - if (!glyphAttributes[i].zeroWidth && xp < SHRT_MAX && xp > SHRT_MIN) - XftDrawString16( draw, &col, fnt, xp, yp, (XftChar16 *) (glyphs+i), 1); -#endif // TQT_XFT2 -#ifdef FONTENGINE_DEBUG - glyph_metrics_t gi = boundingBox( glyphs[i] ); - p->drawRect( x+offsets[i].x+gi.x, y+offsets[i].y+100+gi.y, gi.width, gi.height ); - p->drawLine( x+offsets[i].x, y + 150 + 5*i , x+offsets[i].x+advances[i], y + 150 + 5*i ); - p->drawLine( x+offsets[i].x, y + 152 + 5*i , x+offsets[i].x+gi.xoff, y + 152 + 5*i ); - qDebug("bounding ci[%d]=%d %d (%d/%d) / %d %d offs=(%d/%d) advance=%d", i, gi.x, gi.y, gi.width, gi.height, - gi.xoff, gi.yoff, offsets[i].x, offsets[i].y, advances[i]); -#endif - x += advances[i]; - } - } else { - int i = 0; - while ( i < si->num_glyphs ) { - int xp = x + offsets[i].x; - int yp = y + offsets[i].y; - if ( transform ) - p->map( xp, yp, &xp, &yp ); -#ifdef TQT_XFT2 - FT_UInt glyph = *(glyphs + i); - if (!glyphAttributes[i].zeroWidth && xp < SHRT_MAX && xp > SHRT_MIN) - XftDrawGlyphs( draw, &col, fnt, xp, yp, &glyph, 1 ); -#else - if (!glyphAttributes[i].zeroWidth && xp < SHRT_MAX && xp > SHRT_MIN) - XftDrawString16( draw, &col, fnt, xp, yp, (XftChar16 *) (glyphs+i), 1 ); -#endif // TQT_XFT2 - // qDebug("advance = %d/%d", adv.x, adv.y ); - x += advances[i]; - i++; - } - } - } else { - // Xft has real trouble drawing the glyphs on their own. - // Drawing them as one string increases performance significantly. -#ifdef TQT_XFT2 - // #### we should use a different method anyways on Xft2 - FT_UInt g[64]; - int gl = 0; - while (gl < si->num_glyphs) { - int toDraw = TQMIN(64, si->num_glyphs-gl); - int adv = 0; - if ( si->analysis.bidiLevel % 2 ) { - for ( int i = 0; i < toDraw; i++ ) { - g[i] = glyphs[si->num_glyphs-1-(gl+i)]; - adv += advances[si->num_glyphs-1-(gl+i)]; - } - } else { - for ( int i = 0; i < toDraw; i++ ) { - g[i] = glyphs[gl+i]; - adv += advances[gl+i]; - } - } - if (x + adv < SHRT_MAX && x > SHRT_MIN) - XftDrawGlyphs( draw, &col, fnt, x, y, g, toDraw ); - gl += toDraw; - x += adv; - } -#else - XftChar16 g[64]; - int gl = 0; - while (gl < si->num_glyphs) { - int toDraw = TQMIN(64, si->num_glyphs-gl); - int adv = 0; - if ( si->analysis.bidiLevel % 2 ) { - for ( int i = 0; i < toDraw; i++ ) { - g[i] = glyphs[si->num_glyphs-1-(gl+i)]; - adv += advances[si->num_glyphs-1-(gl+i)]; - } - } else { - for ( int i = 0; i < toDraw; i++ ) { - g[i] = glyphs[gl+i]; - adv += advances[gl+i]; - } - } - if (x + adv < SHRT_MAX && x > SHRT_MIN) - XftDrawString16( draw, &col, fnt, x, y, g, toDraw ); - gl += toDraw; - x += adv; - } -#endif // TQT_XFT2 - } - -#ifdef FONTENGINE_DEBUG - if ( !si->analysis.bidiLevel % 2 ) { - x = xp; - y = yp; - p->save(); - p->setPen( TQt::red ); - for ( int i = 0; i < si->num_glyphs; i++ ) { - glyph_metrics_t ci = boundingBox( glyphs[i] ); - p->drawRect( x + ci.x + offsets[i].x, y + 100 + ci.y + offsets[i].y, ci.width, ci.height ); - qDebug("bounding ci[%d]=%d %d (%d/%d) / %d %d offs=(%d/%d) advance=%d", i, ci.x, ci.y, ci.width, ci.height, - ci.xoff, ci.yoff, offsets[i].x, offsets[i].y, advances[i]); - x += advances[i]; - } - p->restore(); - } -#endif -} - -glyph_metrics_t TQFontEngineXft::boundingBox( const glyph_t *glyphs, const advance_t *advances, const qoffset_t *offsets, int numGlyphs ) -{ - XGlyphInfo xgi; - - glyph_metrics_t overall; - int ymax = 0; - int xmax = 0; - if (_scale != 1) { - for (int i = 0; i < numGlyphs; i++) { - getGlyphInfo( &xgi, _font, glyphs[i] ); - int x = overall.xoff + offsets[i].x - xgi.x; - int y = overall.yoff + offsets[i].y - xgi.y; - overall.x = TQMIN( overall.x, x ); - overall.y = TQMIN( overall.y, y ); - xmax = TQMAX( xmax, x + xgi.width ); - ymax = TQMAX( ymax, y + xgi.height ); - overall.xoff += tqRound(advances[i]/_scale); - } - overall.x = tqRound(overall.x * _scale); - overall.y = tqRound(overall.y * _scale); - overall.xoff = tqRound(overall.xoff * _scale); - overall.yoff = tqRound(overall.yoff * _scale); - xmax = tqRound(xmax * _scale); - ymax = tqRound(ymax * _scale); - } else { - for (int i = 0; i < numGlyphs; i++) { - getGlyphInfo( &xgi, _font, glyphs[i] ); - int x = overall.xoff + offsets[i].x - xgi.x; - int y = overall.yoff + offsets[i].y - xgi.y; - overall.x = TQMIN( overall.x, x ); - overall.y = TQMIN( overall.y, y ); - xmax = TQMAX( xmax, x + xgi.width ); - ymax = TQMAX( ymax, y + xgi.height ); - overall.xoff += advances[i]; - } - } - overall.height = ymax - overall.y; - overall.width = xmax - overall.x; - return overall; -} - -glyph_metrics_t TQFontEngineXft::boundingBox( glyph_t glyph ) -{ - XGlyphInfo xgi; - getGlyphInfo( &xgi, _font, glyph ); - glyph_metrics_t gm = glyph_metrics_t( -xgi.x, -xgi.y, xgi.width, xgi.height, xgi.xOff, -xgi.yOff ); - if ( _scale != 1. ) { - gm.x = tqRound(gm.x * _scale); - gm.y = tqRound(gm.y * _scale); - gm.height = tqRound(gm.height * _scale); - gm.width = tqRound(gm.width * _scale); - gm.xoff = tqRound(gm.xoff * _scale); - gm.yoff = tqRound(gm.yoff * _scale); - } - return gm; -} - - - -int TQFontEngineXft::ascent() const -{ - return tqRound(_font->ascent*_scale); -} - -int TQFontEngineXft::descent() const -{ - return tqRound((_font->descent-1)*_scale); -} - -// #### use Freetype to determine this -int TQFontEngineXft::leading() const -{ - int l = tqRound(TQMIN( _font->height - (_font->ascent + _font->descent), - ((_font->ascent + _font->descent) >> 4)*_scale )); - return (l > 0) ? l : 1; -} - -// #### use Freetype to determine this -int TQFontEngineXft::lineThickness() const -{ - // ad hoc algorithm - int score = fontDef.weight * fontDef.pixelSize; - int lw = score / 700; - - // looks better with thicker line for small pointsizes - if ( lw < 2 && score >= 1050 ) lw = 2; - if ( lw == 0 ) lw = 1; - - return lw; -} - -// #### use Freetype to determine this -int TQFontEngineXft::underlinePosition() const -{ - int pos = ( ( lineThickness() * 2 ) + 3 ) / 6; - return pos ? pos : 1; -} - -int TQFontEngineXft::maxCharWidth() const -{ - return tqRound(_font->max_advance_width*_scale); -} - -static const ushort char_table[] = { - 40, - 67, - 70, - 75, - 86, - 88, - 89, - 91, - 102, - 114, - 124, - 127, - 205, - 645, - 884, - 922, - 1070, - 12386 -}; - -static const int char_table_entries = sizeof(char_table)/sizeof(ushort); - - -int TQFontEngineXft::minLeftBearing() const -{ - if ( lbearing == SHRT_MIN ) - minRightBearing(); // calculates both - - return lbearing; -} - -int TQFontEngineXft::minRightBearing() const -{ - if ( rbearing == SHRT_MIN ) { - TQFontEngineXft *that = (TQFontEngineXft *)this; - that->lbearing = that->rbearing = 0; - TQChar *ch = (TQChar *)char_table; - glyph_t glyphs[char_table_entries]; - int ng = char_table_entries; - stringToCMap(ch, char_table_entries, glyphs, 0, &ng, FALSE); - while (--ng) { - if (glyphs[ng]) { - glyph_metrics_t gi = that->boundingBox( glyphs[ng] ); - if (gi.xoff) { - that->lbearing = TQMIN(lbearing, gi.x); - that->rbearing = TQMIN(rbearing, gi.xoff - gi.x - gi.width); - } - } - } - } - - return rbearing; -} - -int TQFontEngineXft::cmap() const -{ - return _cmap; -} - -const char *TQFontEngineXft::name() const -{ - return "xft"; -} - -void TQFontEngineXft::setScale( double scale ) -{ - _scale = scale; -} - -bool TQFontEngineXft::canRender( const TQChar *string, int len ) -{ - bool allExist = TRUE; - -#ifdef TQT_XFT2 - if (_cmap != -1) { - for ( int i = 0; i < len; i++ ) { - if (!XftCharExists(0, _font, string[i].tqunicode()) - && getAdobeCharIndex(_font, _cmap, string[i].tqunicode()) == 0) { - allExist = FALSE; - break; - } - } - } else { - for ( int i = 0; i < len; i++ ) { - if (!XftCharExists(0, _font, string[i].tqunicode())) { - allExist = FALSE; - break; - } - } - } -#else - glyph_t glyphs[256]; - int nglyphs = 255; - glyph_t *g = glyphs; - if ( stringToCMap( string, len, g, 0, &nglyphs, FALSE ) == OutOfMemory ) { - g = (glyph_t *)malloc( nglyphs*sizeof(glyph_t) ); - stringToCMap( string, len, g, 0, &nglyphs, FALSE ); - } - - for ( int i = 0; i < nglyphs; i++ ) { - if ( !XftGlyphExists(TQPaintDevice::x11AppDisplay(), _font, g[i]) ) { - allExist = FALSE; - break; - } - } - - if ( g != glyphs ) - free( g ); -#endif // TQT_XFT2 - - return allExist; -} - -TQOpenType *TQFontEngineXft::openType() const -{ -// qDebug("openTypeIface requested!"); - if ( _openType ) - return _openType; - - if ( !_face || ! FT_IS_SFNT( _face ) ) - return 0; - - TQFontEngineXft *that = (TQFontEngineXft *)this; - that->_openType = new TQOpenType(that); - return _openType; -} - - -TQFontEngine::Type TQFontEngineXft::type() const -{ - return Xft; -} -#endif - - -// -------------------------------------------------------------------------------------------------------------------- -// Open type support -// -------------------------------------------------------------------------------------------------------------------- - -#ifndef TQT_NO_XFTFREETYPE - -#include "tqscriptengine_p.h" - -//#define OT_DEBUG - -#ifdef OT_DEBUG -static inline char *tag_to_string(FT_ULong tag) -{ - static char string[5]; - string[0] = (tag >> 24)&0xff; - string[1] = (tag >> 16)&0xff; - string[2] = (tag >> 8)&0xff; - string[3] = tag&0xff; - string[4] = 0; - return string; -} -#endif - -#define DefaultLangSys 0xffff -#define DefaultScript FT_MAKE_TAG('D', 'F', 'L', 'T') - -enum { - RequiresGsub = 1, - RequiresGpos = 2 -}; - -struct OTScripts { - unsigned int tag; - int flags; -}; - -static const OTScripts ot_scripts [] = { -// // European Alphabetic Scripts -// Latin, - { FT_MAKE_TAG( 'l', 'a', 't', 'n' ), 0 }, -// Greek, - { FT_MAKE_TAG( 'g', 'r', 'e', 'k' ), 0 }, -// Cyrillic, - { FT_MAKE_TAG( 'c', 'y', 'r', 'l' ), 0 }, -// Armenian, - { FT_MAKE_TAG( 'a', 'r', 'm', 'n' ), 0 }, -// Georgian, - { FT_MAKE_TAG( 'g', 'e', 'o', 'r' ), 0 }, -// Runic, - { FT_MAKE_TAG( 'r', 'u', 'n', 'r' ), 0 }, -// Ogham, - { FT_MAKE_TAG( 'o', 'g', 'a', 'm' ), 0 }, -// SpacingModifiers, - { FT_MAKE_TAG( 'D', 'F', 'L', 'T' ), 0 }, -// CombiningMarks, - { FT_MAKE_TAG( 'D', 'F', 'L', 'T' ), 0 }, - -// // Middle Eastern Scripts -// Hebrew, - { FT_MAKE_TAG( 'h', 'e', 'b', 'r' ), 1 }, -// Arabic, - { FT_MAKE_TAG( 'a', 'r', 'a', 'b' ), 1 }, -// Syriac, - { FT_MAKE_TAG( 's', 'y', 'r', 'c' ), 1 }, -// Thaana, - { FT_MAKE_TAG( 't', 'h', 'a', 'a' ), 1 }, - -// // South and Southeast Asian Scripts -// Devanagari, - { FT_MAKE_TAG( 'd', 'e', 'v', 'a' ), 1 }, -// Bengali, - { FT_MAKE_TAG( 'b', 'e', 'n', 'g' ), 1 }, -// Gurmukhi, - { FT_MAKE_TAG( 'g', 'u', 'r', 'u' ), 1 }, -// Gujarati, - { FT_MAKE_TAG( 'g', 'u', 'j', 'r' ), 1 }, -// Oriya, - { FT_MAKE_TAG( 'o', 'r', 'y', 'a' ), 1 }, -// Tamil, - { FT_MAKE_TAG( 't', 'a', 'm', 'l' ), 1 }, -// Telugu, - { FT_MAKE_TAG( 't', 'e', 'l', 'u' ), 1 }, -// Kannada, - { FT_MAKE_TAG( 'k', 'n', 'd', 'a' ), 1 }, -// Malayalam, - { FT_MAKE_TAG( 'm', 'l', 'y', 'm' ), 1 }, -// Sinhala, - // ### could not find any OT specs on this - { FT_MAKE_TAG( 's', 'i', 'n', 'h' ), 1 }, -// Thai, - { FT_MAKE_TAG( 't', 'h', 'a', 'i' ), 1 }, -// Lao, - { FT_MAKE_TAG( 'l', 'a', 'o', ' ' ), 1 }, -// Tibetan, - { FT_MAKE_TAG( 't', 'i', 'b', 't' ), 1 }, -// Myanmar, - { FT_MAKE_TAG( 'm', 'y', 'm', 'r' ), 1 }, -// Khmer, - { FT_MAKE_TAG( 'k', 'h', 'm', 'r' ), 1 }, - -// // East Asian Scripts -// Han, - { FT_MAKE_TAG( 'h', 'a', 'n', 'i' ), 0 }, -// Hiragana, - { FT_MAKE_TAG( 'k', 'a', 'n', 'a' ), 0 }, -// Katakana, - { FT_MAKE_TAG( 'k', 'a', 'n', 'a' ), 0 }, -// Hangul, - { FT_MAKE_TAG( 'h', 'a', 'n', 'g' ), 1 }, -// Bopomofo, - { FT_MAKE_TAG( 'b', 'o', 'p', 'o' ), 0 }, -// Yi, - { FT_MAKE_TAG( 'y', 'i', ' ', ' ' ), 0 }, - -// // Additional Scripts -// Ethiopic, - { FT_MAKE_TAG( 'e', 't', 'h', 'i' ), 0 }, -// Cherokee, - { FT_MAKE_TAG( 'c', 'h', 'e', 'r' ), 0 }, -// CanadianAboriginal, - { FT_MAKE_TAG( 'c', 'a', 'n', 's' ), 0 }, -// Mongolian, - { FT_MAKE_TAG( 'm', 'o', 'n', 'g' ), 0 }, -// // Symbols -// CurrencySymbols, - { FT_MAKE_TAG( 'D', 'F', 'L', 'T' ), 0 }, -// LetterlikeSymbols, - { FT_MAKE_TAG( 'D', 'F', 'L', 'T' ), 0 }, -// NumberForms, - { FT_MAKE_TAG( 'D', 'F', 'L', 'T' ), 0 }, -// MathematicalOperators, - { FT_MAKE_TAG( 'D', 'F', 'L', 'T' ), 0 }, -// TechnicalSymbols, - { FT_MAKE_TAG( 'D', 'F', 'L', 'T' ), 0 }, -// GeometricSymbols, - { FT_MAKE_TAG( 'D', 'F', 'L', 'T' ), 0 }, -// MiscellaneousSymbols, - { FT_MAKE_TAG( 'D', 'F', 'L', 'T' ), 0 }, -// EnclosedAndSquare, - { FT_MAKE_TAG( 'D', 'F', 'L', 'T' ), 0 }, -// Braille, - { FT_MAKE_TAG( 'b', 'r', 'a', 'i' ), 0 }, -// Unicode, should be used - { FT_MAKE_TAG( 'D', 'F', 'L', 'T' ), 0 } - // ### where are these? -// { FT_MAKE_TAG( 'b', 'y', 'z', 'm' ), 0 }, -// { FT_MAKE_TAG( 'D', 'F', 'L', 'T' ), 0 }, - // ### Hangul Jamo -// { FT_MAKE_TAG( 'j', 'a', 'm', 'o' ), 0 }, -}; - -TQOpenType::TQOpenType(TQFontEngineXft *fe) - : fontEngine(fe), gdef(0), gsub(0), gpos(0), current_script(0) -{ - face = fe->face(); - otl_buffer_new(face->memory, &otl_buffer); - tmpAttributes = 0; - tmpLogClusters = 0; - - FT_Error error; - if ((error = TT_Load_GDEF_Table(face, &gdef))) { -#ifdef OT_DEBUG - qDebug("error loading gdef table: %d", error); -#endif - gdef = 0; - } - - if ((error = TT_Load_GSUB_Table(face, &gsub, gdef))) { - gsub = 0; -#ifdef OT_DEBUG - if (error != FT_Err_Table_Missing) { - qDebug("error loading gsub table: %d", error); - } else { - qDebug("face doesn't have a gsub table"); - } -#endif - } - - if ((error = TT_Load_GPOS_Table(face, &gpos, gdef))) { - gpos = 0; -#ifdef OT_DEBUG - qDebug("error loading gpos table: %d", error); -#endif - } - - for (uint i = 0; i < TQFont::NScripts; ++i) - supported_scripts[i] = checkScript(i); -} - -TQOpenType::~TQOpenType() -{ - if (gpos) - TT_Done_GPOS_Table(gpos); - if (gsub) - TT_Done_GSUB_Table(gsub); - if (gdef) - TT_Done_GDEF_Table(gdef); - if (otl_buffer) - otl_buffer_free(otl_buffer); - if (tmpAttributes) - free(tmpAttributes); - if (tmpLogClusters) - free(tmpLogClusters); -} - -bool TQOpenType::checkScript(unsigned int script) -{ - assert(script < TQFont::NScripts); - - uint tag = ot_scripts[script].tag; - int requirements = ot_scripts[script].flags; - - if (requirements & RequiresGsub) { - if (!gsub) - return FALSE; - - FT_UShort script_index; - FT_Error error = TT_GSUB_Select_Script(gsub, tag, &script_index); - if (error) { -#ifdef OT_DEBUG - qDebug("could not select script %d in GSub table: %d", (int)script, error); -#endif - return FALSE; - } - } - - if (requirements & RequiresGpos) { - if (!gpos) - return FALSE; - - FT_UShort script_index; - FT_Error error = TT_GPOS_Select_Script(gpos, script, &script_index); - if (error) { -#ifdef OT_DEBUG - qDebug("could not select script in gpos table: %d", error); -#endif - return FALSE; - } - - } - return TRUE; -} - - -void TQOpenType::selectScript(unsigned int script, const Features *features) -{ - if (current_script == script) - return; - - assert(script < TQFont::NScripts); - // find script in our list of supported scripts. - uint tag = ot_scripts[script].tag; - - if (gsub && features) { -#ifdef OT_DEBUG - { - TTO_FeatureList featurelist = gsub->FeatureList; - int numfeatures = featurelist.FeatureCount; - qDebug("gsub table has %d features", numfeatures); - for(int i = 0; i < numfeatures; i++) { - TTO_FeatureRecord *r = featurelist.FeatureRecord + i; - qDebug(" feature '%s'", tag_to_string(r->FeatureTag)); - } - } -#endif - TT_GSUB_Clear_Features(gsub); - FT_UShort script_index; - FT_Error error = TT_GSUB_Select_Script(gsub, tag, &script_index); - if (!error) { -#ifdef OT_DEBUG - qDebug("script %s has script index %d", tag_to_string(script), script_index); -#endif - while (features->tag) { - FT_UShort feature_index; - error = TT_GSUB_Select_Feature(gsub, features->tag, script_index, 0xffff, &feature_index); - if (!error) { -#ifdef OT_DEBUG - qDebug(" adding feature %s", tag_to_string(features->tag)); -#endif - TT_GSUB_Add_Feature(gsub, feature_index, features->property); - } - ++features; - } - } - } - - if (gpos) { - TT_GPOS_Clear_Features(gpos); - FT_UShort script_index; - FT_Error error = TT_GPOS_Select_Script(gpos, tag, &script_index); - if (!error) { -#ifdef OT_DEBUG - { - TTO_FeatureList featurelist = gpos->FeatureList; - int numfeatures = featurelist.FeatureCount; - qDebug("gpos table has %d features", numfeatures); - for(int i = 0; i < numfeatures; i++) { - TTO_FeatureRecord *r = featurelist.FeatureRecord + i; - FT_UShort feature_index; - TT_GPOS_Select_Feature(gpos, r->FeatureTag, script_index, 0xffff, &feature_index); - qDebug(" feature '%s'", tag_to_string(r->FeatureTag)); - } - } -#endif - FT_ULong *feature_tag_list; - error = TT_GPOS_Query_Features(gpos, script_index, 0xffff, &feature_tag_list); - if (!error) { - while (*feature_tag_list) { - FT_UShort feature_index; - error = TT_GPOS_Select_Feature(gpos, *feature_tag_list, script_index, 0xffff, &feature_index); - if (!error) - TT_GPOS_Add_Feature(gpos, feature_index, PositioningProperties); - ++feature_tag_list; - } - } - } - } - - current_script = script; -} - -#ifdef OT_DEBUG -static void dump_string(OTL_Buffer buffer) -{ - for (uint i = 0; i < buffer->in_length; ++i) { - qDebug(" %x: cluster=%d", buffer->in_string[i].gindex, buffer->in_string[i].cluster); - } -} -#endif - -extern void qt_heuristicPosition(TQShaperItem *item); - -bool TQOpenType::tqshape(TQShaperItem *item, const unsigned int *properties) -{ - length = item->num_glyphs; - - otl_buffer_clear(otl_buffer); - - tmpAttributes = (GlyphAttributes *) realloc(tmpAttributes, length*sizeof(GlyphAttributes)); - tmpLogClusters = (unsigned int *) realloc(tmpLogClusters, length*sizeof(unsigned int)); - for (int i = 0; i < length; ++i) { - otl_buffer_add_glyph(otl_buffer, item->glyphs[i], properties ? properties[i] : 0, i); - tmpAttributes[i] = item->attributes[i]; - tmpLogClusters[i] = item->log_clusters[i]; - } - -#ifdef OT_DEBUG - qDebug("-----------------------------------------"); -// qDebug("log clusters before shaping:"); -// for (int j = 0; j < length; j++) -// qDebug(" log[%d] = %d", j, item->log_clusters[j]); - qDebug("original glyphs: %p", item->glyphs); - for (int i = 0; i < length; ++i) - qDebug(" glyph=%4x", otl_buffer->in_string[i].gindex); -// dump_string(otl_buffer); -#endif - - loadFlags = FT_LOAD_DEFAULT; - - if (gsub) { - uint error = TT_GSUB_Apply_String(gsub, otl_buffer); - if (error && error != TTO_Err_Not_Covered) - return false; - } - -#ifdef OT_DEBUG -// qDebug("log clusters before shaping:"); -// for (int j = 0; j < length; j++) -// qDebug(" log[%d] = %d", j, item->log_clusters[j]); - qDebug("tqshaped glyphs:"); - for (int i = 0; i < length; ++i) - qDebug(" glyph=%4x", otl_buffer->in_string[i].gindex); - qDebug("-----------------------------------------"); -// dump_string(otl_buffer); -#endif - - return true; -} - -bool TQOpenType::positionAndAdd(TQShaperItem *item, bool doLogClusters) -{ - if (gpos) { -#ifdef TQ_WS_X11 - TQ_ASSERT(fontEngine->type() == TQFontEngine::Xft); - face = lockFTFace(static_cast<TQFontEngineXft *>(fontEngine)->font()); -#endif - memset(otl_buffer->positions, 0, otl_buffer->in_length*sizeof(OTL_PositionRec)); - // #### check that passing "FALSE,FALSE" is correct - TT_GPOS_Apply_String(face, gpos, loadFlags, otl_buffer, FALSE, FALSE); -#ifdef TQ_WS_X11 - unlockFTFace(static_cast<TQFontEngineXft *>(fontEngine)->font()); -#endif - } - - // make sure we have enough space to write everything back - if (item->num_glyphs < (int)otl_buffer->in_length) { - item->num_glyphs = otl_buffer->in_length; - return FALSE; - } - - for (unsigned int i = 0; i < otl_buffer->in_length; ++i) { - item->glyphs[i] = otl_buffer->in_string[i].gindex; - item->attributes[i] = tmpAttributes[otl_buffer->in_string[i].cluster]; - if (i && otl_buffer->in_string[i].cluster == otl_buffer->in_string[i-1].cluster) - item->attributes[i].clusterStart = FALSE; - } - item->num_glyphs = otl_buffer->in_length; - - if (doLogClusters) { - // we can't do this for indic, as we pass the stuf in syllables and it's easier to do it in the tqshaper. - unsigned short *logClusters = item->log_clusters; - int clusterStart = 0; - int oldCi = 0; - for (unsigned int i = 0; i < otl_buffer->in_length; ++i) { - int ci = otl_buffer->in_string[i].cluster; - // qDebug(" ci[%d] = %d mark=%d, cmb=%d, cs=%d", - // i, ci, glyphAttributes[i].mark, glyphAttributes[i].combiningClass, glyphAttributes[i].clusterStart); - if (!item->attributes[i].mark && item->attributes[i].clusterStart && ci != oldCi) { - for (int j = oldCi; j < ci; j++) - logClusters[j] = clusterStart; - clusterStart = i; - oldCi = ci; - } - } - for (int j = oldCi; j < length; j++) - logClusters[j] = clusterStart; - } - - // calulate the advances for the tqshaped glyphs -// qDebug("unpositioned: "); - static_cast<TQFontEngineXft *>(item->font)->recalcAdvances(item->num_glyphs, item->glyphs, item->advances); - - // positioning code: - if (gpos) { - float scale = item->font->scale(); - OTL_Position positions = otl_buffer->positions; - -// qDebug("positioned glyphs:"); - for (unsigned int i = 0; i < otl_buffer->in_length; i++) { -// qDebug(" %d:\t orig advance: (%d/%d)\tadv=(%d/%d)\tpos=(%d/%d)\tback=%d\tnew_advance=%d", i, -// glyphs[i].advance.x.toInt(), glyphs[i].advance.y.toInt(), -// (int)(positions[i].x_advance >> 6), (int)(positions[i].y_advance >> 6), -// (int)(positions[i].x_pos >> 6), (int)(positions[i].y_pos >> 6), -// positions[i].back, positions[i].new_advance); - // ###### fix the case where we have y advances. How do we handle this in Uniscribe????? - if (positions[i].new_advance) { - item->advances[i] = item->flags & TQTextEngine::RightToLeft - ? -tqRound((positions[i].x_advance >> 6)*scale) - : tqRound((positions[i].x_advance >> 6)*scale); - } else { - item->advances[i] += item->flags & TQTextEngine::RightToLeft - ? -tqRound((positions[i].x_advance >> 6)*scale) - : tqRound((positions[i].x_advance >> 6)*scale); - } - item->offsets[i].x = tqRound((positions[i].x_pos >> 6)*scale); - item->offsets[i].y = -tqRound((positions[i].y_pos >> 6)*scale); - int back = positions[i].back; - if (item->flags & TQTextEngine::RightToLeft) { - while (back--) { - item->offsets[i].x -= item->advances[i-back]; - } - } else { - while (back) { - item->offsets[i].x -= item->advances[i-back]; - --back; - } - } -// qDebug(" ->\tadv=%d\tpos=(%d/%d)", -// glyphs[i].advance.x.toInt(), glyphs[i].offset.x.toInt(), glyphs[i].offset.y.toInt()); - } - item->has_positioning = TRUE; - } else { - qt_heuristicPosition(item); - } - -#ifdef OT_DEBUG -// if (doLogClusters) { -// qDebug("log clusters after shaping:"); -// for (int j = 0; j < length; j++) -// qDebug(" log[%d] = %d", j, item->log_clusters[j]); -// } - qDebug("final glyphs:"); - for (int i = 0; i < (int)otl_buffer->in_length; ++i) - qDebug(" glyph=%4x char_index=%d mark: %d cmp: %d, clusterStart: %d advance=%d offset=%d/%d", - item->glyphs[i], otl_buffer->in_string[i].cluster, item->attributes[i].mark, - item->attributes[i].combiningClass, item->attributes[i].clusterStart, - item->advances[i], - item->offsets[i].x, item->offsets[i].y); - qDebug("-----------------------------------------"); -#endif - return TRUE; -} - -#endif - -#endif // USE_QT4
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