Diffstat (limited to 'noncore/apps/opie-reader/CDrawBuffer.cpp') (more/less context) (show whitespace changes)
| -rw-r--r-- | noncore/apps/opie-reader/CDrawBuffer.cpp | 400 |
1 files changed, 359 insertions, 41 deletions
diff --git a/noncore/apps/opie-reader/CDrawBuffer.cpp b/noncore/apps/opie-reader/CDrawBuffer.cpp index b137ac3..cd79fec 100644 --- a/noncore/apps/opie-reader/CDrawBuffer.cpp +++ b/noncore/apps/opie-reader/CDrawBuffer.cpp @@ -1,7 +1,11 @@ #include "CDrawBuffer.h" #include "FontControl.h" +#include <qfontmetrics.h> #include <qpainter.h> +#include <qpixmap.h> #include <qimage.h> +#include "useqpe.h" +#include "opie.h" CDrawBuffer::~CDrawBuffer() { @@ -13,7 +17,7 @@ void CDrawBuffer::setright(CDrawBuffer& rhs, int f) int i; len = rhs.len; fc = rhs.fc; - m_maxstyle = m_ascent = m_descent = m_lineSpacing = m_lineExtraSpacing = 0; + m_ascent = m_descent = m_lineSpacing = m_lineExtraSpacing = 0; while (!segs.isEmpty()) { segs.erase(0); @@ -28,7 +32,6 @@ void CDrawBuffer::setright(CDrawBuffer& rhs, int f) if (st < 0) st = 0; CStyle _style = next->style; - segs.push_back(textsegment(st,next->style)); } } @@ -40,13 +43,13 @@ void CDrawBuffer::setright(CDrawBuffer& rhs, int f) CDrawBuffer& CDrawBuffer::operator=(CDrawBuffer& rhs) { int i; -// //odebug << "Trying 2" << oendl; +// //qDebug("Trying 2"); len = rhs.len; - m_maxstyle = rhs.m_maxstyle; m_ascent = rhs.m_ascent; m_descent = rhs.m_descent; m_lineSpacing = rhs.m_lineSpacing; m_lineExtraSpacing = rhs.m_lineExtraSpacing; + m_showPartial = rhs.m_showPartial; while (!segs.isEmpty()) { segs.erase(0); @@ -58,7 +61,7 @@ CDrawBuffer& CDrawBuffer::operator=(CDrawBuffer& rhs) for (i = 0; rhs[i] != '\0'; i++) (*this)[i] = rhs[i]; (*this)[i] = '\0'; len = i; -// //odebug << "Tried 2" << oendl; +// //qDebug("Tried 2"); return *this; } @@ -80,6 +83,7 @@ void CDrawBuffer::empty() { m_bSop = false; m_bEop = false; + m_bBop = false; len = 0; (*this)[0] = 0; while (!segs.isEmpty()) @@ -87,10 +91,20 @@ void CDrawBuffer::empty() segs.erase(0); } segs.push_back(textsegment(0,CStyle())); - m_maxstyle = m_ascent = m_descent = m_lineSpacing = m_lineExtraSpacing = 0; + m_ascent = m_descent = m_lineSpacing = m_lineExtraSpacing = 0; m_bEof = false; } +void CDrawBuffer::setendpara(const CStyle& _style/* = ucFontBase*/) +{ + m_bEop = true; + if (len == 0) + { + segs.first().start = 0; + segs.first().style = _style; + } +} + void CDrawBuffer::addch(tchar ch, CStyle _style/* = ucFontBase*/) { if (len == 0) @@ -111,7 +125,7 @@ void CDrawBuffer::truncate(int n) (*this)[n] = 0; } -int CDrawBuffer::width(int numchars, bool onscreen, int scwidth, unsigned char _border) +int CDrawBuffer::width(int availht, int numchars, bool onscreen, int scwidth, unsigned short _lborder, unsigned short _rborder) { int gzoom = fc->gzoom(); int currentx = 0, end = 0; @@ -150,7 +164,7 @@ int CDrawBuffer::width(int numchars, bool onscreen, int scwidth, unsigned char _ } else { - extraspace = (scwidth - 2*_border - rightMargin() - leftMargin() - width()); + extraspace = (scwidth - (_lborder+_rborder) - rightMargin() - leftMargin() - width(availht)); if (extraspace == 0) just = false; } } @@ -168,7 +182,13 @@ int CDrawBuffer::width(int numchars, bool onscreen, int scwidth, unsigned char _ { if (currentstyle.canScale()) { - currentx += (gzoom*currentstyle.getPicture()->width())/100; + int ht = (gzoom*currentstyle.getPicture()->height())/100; + int wt = (gzoom*currentstyle.getPicture()->width())/100; + if (ht > availht) + { + wt = (wt*availht)/ht; + } + currentx += wt; } else { @@ -208,7 +228,7 @@ int CDrawBuffer::width(int numchars, bool onscreen, int scwidth, unsigned char _ else { QString nstr = str.mid(lastspace+1, nsp-lastspace); -// odebug << "str:" << str << ": last:" << lastspace << " new:" << nsp << " nstr:" << nstr << ":" << oendl; +// qDebug("str:%s: last:%d new:%d nstr:%s:", (const char*)str, lastspace, nsp, (const char*)nstr); int lw = fm.width(nstr); cx += lw; lastspace = nsp; @@ -230,6 +250,92 @@ int CDrawBuffer::width(int numchars, bool onscreen, int scwidth, unsigned char _ return currentx; } +int CDrawBuffer::charwidth(int numchars, CStyle& currentstyle) +{ + if (currentstyle.isPicture()) + { + int gzoom = fc->gzoom(); + if (currentstyle.canScale()) + { + return (gzoom*currentstyle.getPicture()->width())/100; + } + else + { + return currentstyle.getPicture()->width(); + } + } + else + { + if (currentstyle.isMono() && !fc->hasCourier()) + { + return (7*fc->getsize(currentstyle))/10; + } + else + { + QString text = QChar((data())[numchars]); + QFont f(currentstyle.isMono() ? QString(fc->fixedfontname()) : fc->name(), fc->getsize(currentstyle), (currentstyle.isBold()) ? QFont::Bold : QFont::Normal, (currentstyle.isItalic()) ); + // f.setUnderline(currentstyle.isUnderline()); + QFontMetrics fm(f); + return fm.width(text); + } + } + return 0; +} + +int CDrawBuffer::charwidth(int numchars) +{ + int gzoom = fc->gzoom(); + int end = 0; + QString text = QChar((data())[numchars]); + CList<textsegment>::iterator textstart = segs.begin(); + CList<textsegment>::iterator textend = textstart; + do + { + textend++; + end = (textend != segs.end()) ? textend->start : len; + if (end <= numchars) + { + textstart = textend; + continue; + } + if (numchars >= 0 && end > numchars) + { + end = numchars; + } + CStyle currentstyle = textstart->style; + if (currentstyle.isPicture()) + { + if (currentstyle.canScale()) + { + return (gzoom*currentstyle.getPicture()->width())/100; + } + else + { + return currentstyle.getPicture()->width(); + } + } + else + { + if (currentstyle.isMono() && !fc->hasCourier()) + { + return (7*fc->getsize(currentstyle))/10; + } + else + { + QFont f(currentstyle.isMono() ? QString(fc->fixedfontname()) : fc->name(), fc->getsize(currentstyle), (currentstyle.isBold()) ? QFont::Bold : QFont::Normal, (currentstyle.isItalic()) ); +// f.setUnderline(currentstyle.isUnderline()); + QFontMetrics fm(f); + return fm.width(text); + } + } + textstart = textend; + } + while (textend != segs.end() /* && end != numchars*/ && textstart->start < len); + return 0; +} + + + int CDrawBuffer::leftMargin() { return (segs.begin()->style.getLeftMargin()*fc->getsize(segs.begin()->style)+3)/6; @@ -240,38 +346,79 @@ int CDrawBuffer::rightMargin() return (segs.begin()->style.getRightMargin()*fc->getsize(segs.begin()->style)+3)/6; } -int CDrawBuffer::offset(int scwidth, unsigned char _border) +int CDrawBuffer::offset(int scwidth, unsigned short _lborder, unsigned short _rborder, int availht) { - int currentx = _border; + int currentx = _lborder; switch(segs.begin()->style.getJustify()) { case m_AlignRight: { - currentx = scwidth - _border - rightMargin() - width(); + currentx = scwidth - _rborder - rightMargin() - width(availht); } break; case m_AlignCentre: { currentx = ( - scwidth + + scwidth - _lborder -_rborder + leftMargin() - rightMargin() - - width())/2; + - width(availht))/2 + _lborder; } break; case m_AlignJustify: case m_AlignLeft: - currentx = _border + leftMargin(); + currentx = _lborder + leftMargin(); break; } return currentx; } -void CDrawBuffer::render(QPainter* _p, int _y, bool _bMono, int _charWidth, int scwidth, unsigned char _border) +void CDrawBuffer::render(QPainter* _p, int _y, bool _bMono, int _charWidth, int scwidth, unsigned short _lborder, unsigned short _rborder, const QColor& _bg, int availht) { + CList<textsegment>::iterator textstart = segs.begin(); + QColor paperColour = QColor(qRgb(textstart->style.pRed(), + textstart->style.pGreen(), + textstart->style.pBlue())); + + Highlight(_p, !(paperColour == _bg), _lborder, _y, scwidth-(_lborder+_rborder), paperColour); + // Highlight(_p, true, _lborder, _y, scwidth-(_lborder+_rborder), paperColour); int gzoom = fc->gzoom(); - int currentx = offset(scwidth, _border); + int currentx = offset(scwidth, _lborder, _rborder, availht); + if (!m_hastext) + { + for (CList<textsegment>::iterator iter = segs.begin(); iter != segs.end(); iter++) + { + CStyle currentstyle = iter->style; + if (currentstyle.isPicture()) + { + CStyle currentstyle = segs.begin()->style; + int ht = (gzoom*currentstyle.getPicture()->height())/100; + int wt = (gzoom*currentstyle.getPicture()->width())/100; + bool willscale = false; + if (ht > availht) + { + wt = (wt*availht)/ht; + ht = availht; + willscale = true; + } + + QPixmap pc; + if ((willscale || gzoom != 100) && currentstyle.canScale()) + { + QImage im = currentstyle.getPicture()->smoothScale(wt,ht); + pc.convertFromImage(im); + } + else + { + pc.convertFromImage(*currentstyle.getPicture()); + } + int yoffset = pc.height()/2; + _p->drawPixmap( currentx, _y-yoffset, pc ); + currentx += pc.width(); + } + } + return; + } QString text = toQString(data()); - CList<textsegment>::iterator textstart = segs.begin(); int extraspace = 0; bool just = (!m_bEop && textstart->style.getJustify() == m_AlignJustify); int spaces = 0; @@ -305,19 +452,37 @@ void CDrawBuffer::render(QPainter* _p, int _y, bool _bMono, int _charWidth, int } else { - extraspace = (scwidth - 2*_border - rightMargin() - leftMargin() - width()); + extraspace = (scwidth - (_lborder+_rborder) - rightMargin() - leftMargin() - width(availht)); if (extraspace == 0) just = false; } } CList<textsegment>::iterator textend = textstart; + + bool drawBackground = false; do { textend++; int end = (textend != segs.end()) ? textend->start : len; CStyle currentstyle = textstart->style; + /* + bool drawBackground = ( + currentstyle.bRed() != 255 + || + currentstyle.bGreen() != 255 + || + currentstyle.bBlue() != 255 + ); + */ + QColor bgColour = QColor(qRgb(currentstyle.bRed(), + currentstyle.bGreen(), + currentstyle.bBlue())); + drawBackground = !(bgColour == _bg); + +// if (drawBackground) qDebug("Drawing background"); + QFont f((currentstyle.isMono() && fc->hasCourier()) ? fc->fixedfontname() : fc->name(), fc->getsize(currentstyle), (currentstyle.isBold()) ? QFont::Bold : QFont::Normal, (currentstyle.isItalic()) ); // f.setUnderline(currentstyle.isUnderline()); -// if (currentstyle.isUnderline()) odebug << "UNDERLINE" << oendl; +// if (currentstyle.isUnderline()) qDebug("UNDERLINE"); _p->setFont(f); QString str = text.mid(textstart->start, end-textstart->start); #if defined(OPIE) || !defined(USEQPE) @@ -326,8 +491,11 @@ void CDrawBuffer::render(QPainter* _p, int _y, bool _bMono, int _charWidth, int _p->setPen(QPen(QColor(currentstyle.Red(), currentstyle.Green(), currentstyle.Blue()), fc->getsize(currentstyle)/10)); #endif int voffset = currentstyle.getVOffset()*fc->getsize(currentstyle)/2; + if (_bMono) { + + Highlight(_p, drawBackground, currentx, _y, str.length()*_charWidth, bgColour); if (currentstyle.isUnderline()) { _p->drawLine( currentx, _y+voffset, currentx + str.length()*_charWidth, _y+voffset); @@ -349,11 +517,18 @@ void CDrawBuffer::render(QPainter* _p, int _y, bool _bMono, int _charWidth, int { int ht = (gzoom*currentstyle.getPicture()->height())/100; int wt = (gzoom*currentstyle.getPicture()->width())/100; + bool willscale = false; + if (ht > availht) + { + wt = (wt*availht)/ht; + ht = availht; + willscale = true; + } int ascent = fc->ascent(currentstyle)/2; int yoffset = ht/2 + ascent; QPixmap pc; - if (gzoom != 100 && currentstyle.canScale()) + if ((willscale || gzoom != 100) && currentstyle.canScale()) { QImage im = currentstyle.getPicture()->smoothScale(wt,ht); pc.convertFromImage(im); @@ -371,6 +546,7 @@ void CDrawBuffer::render(QPainter* _p, int _y, bool _bMono, int _charWidth, int { int cw = (7*fc->getsize(currentstyle))/10; int w = cw*(end-textstart->start); + Highlight(_p, drawBackground, currentx, _y, w, bgColour); if (currentstyle.isUnderline()) { _p->drawLine( currentx, _y+voffset, currentx + w, _y+voffset); @@ -408,9 +584,11 @@ void CDrawBuffer::render(QPainter* _p, int _y, bool _bMono, int _charWidth, int spacenumber++; int nexttoadd = (extraspace*spacenumber+spaces/2)/spaces - spacesofar; QString nstr = str.mid(lastspace+1, nsp-lastspace); -// odebug << "str:" << str << ": last:" << lastspace << " new:" << nsp << " nstr:" << nstr << ":" << oendl; +// qDebug("str:%s: last:%d new:%d nstr:%s:", (const char*)str, lastspace, nsp, (const char*)nstr); int lw = fm.width(nstr); + Highlight(_p, drawBackground, cx, _y, lw, bgColour); _p->drawText( cx, _y+voffset, nstr); + Highlight(_p, drawBackground, cx+lw, _y, nexttoadd, bgColour); cx += lw+nexttoadd; spacesofar += nexttoadd; lastspace = nsp; @@ -418,22 +596,27 @@ void CDrawBuffer::render(QPainter* _p, int _y, bool _bMono, int _charWidth, int else { QString nstr = str.mid(lastspace+1, nsp-lastspace); -// odebug << "str:" << str << ": last:" << lastspace << " new:" << nsp << " nstr:" << nstr << ":" << oendl; +// qDebug("str:%s: last:%d new:%d nstr:%s:", (const char*)str, lastspace, nsp, (const char*)nstr); int lw = fm.width(nstr); + Highlight(_p, drawBackground, cx, _y, lw, bgColour); _p->drawText( cx, _y+voffset, nstr); cx += lw; lastspace = nsp; } } QString nstr = str.right(str.length()-1-lastspace); + int lw = fm.width(nstr); + Highlight(_p, drawBackground, cx, _y, lw, bgColour); _p->drawText( cx, _y+voffset, nstr); - cx += fm.width(nstr); + cx += lw; w = cx - currentx; } else { + int lw = fm.width(str); + Highlight(_p, drawBackground, currentx, _y, lw, bgColour); _p->drawText( currentx, _y+voffset, str); - w = fm.width(str); + w = lw; } if (currentstyle.isUnderline()) { @@ -451,6 +634,20 @@ void CDrawBuffer::render(QPainter* _p, int _y, bool _bMono, int _charWidth, int textstart = textend; } while (textend != segs.end() && textstart->start < len); +/* + if (firstColour == bgColour) + { + Highlight(_p, drawBackground, currentx, _y, scwidth - (currentx + _lborder + _rborder), bgColour); + } + */ +} + +void CDrawBuffer::Highlight(QPainter* _p, bool drawBackground, int _x, int _y, int w, QColor bgColour) +{ + if (drawBackground) + { + _p->fillRect(_x, _y-m_ascent, w, m_lineSpacing, bgColour); + } } CStyle CDrawBuffer::laststyle() @@ -458,8 +655,14 @@ CStyle CDrawBuffer::laststyle() return segs.last().style; } -linkType CDrawBuffer::getLinkType(int numchars, size_t& tgt) +CStyle CDrawBuffer::firststyle() +{ + return segs.first().style; +} + +linkType CDrawBuffer::getLinkType(int numchars, size_t& tgt, size_t& offset, size_t& pictgt, QImage*& img) { + linkType ret = eNone; int end = 0; CStyle currentstyle; CList<textsegment>::iterator textstart = segs.begin(); @@ -470,31 +673,52 @@ linkType CDrawBuffer::getLinkType(int numchars, size_t& tgt) end = (textend != segs.end()) ? textend->start : len; currentstyle = textstart->style; /* - if (currentstyle.isPicture()) odebug << "Passed thru picture" << oendl; - if (currentstyle.getLink()) odebug << "Passed thru link" << oendl; - //odebug << "islink:" << numchars << " - " << end << "" << oendl; + if (currentstyle.isPicture()) qDebug("Passed thru picture"); + if (currentstyle.getLink()) qDebug("Passed thru link"); + //qDebug("islink:%d - %d", numchars, end); */ textstart = textend; } while (textend != segs.end() && end <= numchars); -// if (currentstyle.isPicture()) odebug << "Clicked on picture" << oendl; + img = currentstyle.getPicture(); if (currentstyle.getPictureLink()) { - tgt = currentstyle.getPictureLinkData(); - return ePicture; + pictgt = currentstyle.getPictureLinkData(); + ret |= ePicture; } if (currentstyle.getLink()) { tgt = currentstyle.getData(); - return eLink; + offset = currentstyle.getOffset(); + ret |= eLink; } - return eNone; + return ret; } -void CDrawBuffer::resize() +void CDrawBuffer::resize(int availht) { int gzoom = fc->gzoom(); - m_maxstyle = m_ascent = m_descent = m_lineSpacing = m_lineExtraSpacing = 0; + m_ascent = m_descent = m_lineSpacing = m_lineExtraSpacing = 0; + /* + int t_ascent = 0; + int t_descent = 0; + int t_lineExtraSpacing = 0; + */ + int t_lineSpacing = 0; + m_hastext = false; + for (CList<textsegment>::iterator iter = segs.begin(); iter != segs.end() && iter->start <= len; ) + { + CStyle _style = iter->style; + if (!_style.isPicture()) + { + m_hastext = true; + break; + } + iter++; + } + if (m_hastext) + { + for (CList<textsegment>::iterator iter = segs.begin(); iter != segs.end() && iter->start <= len; ) { CList<textsegment>::iterator next = iter; @@ -510,11 +734,32 @@ void CDrawBuffer::resize() descent = fc->descent(_style); linespacing = fc->lineSpacing(_style); extra = linespacing - ascent - descent; - if (_style.isPicture() && _style.canScale()) + /* + if (ascent > t_ascent) t_ascent = ascent; + if (descent > t_descent) t_descent = descent; + if (extra > t_lineExtraSpacing) t_lineExtraSpacing = extra; + t_lineSpacing = t_ascent+t_descent+t_lineExtraSpacing; + */ + if (linespacing > t_lineSpacing) t_lineSpacing = linespacing; + if (_style.isPicture()) + { + int ht = (gzoom*_style.getPicture()->height())/100; + int wt = (gzoom*_style.getPicture()->width())/100; + + bool willscale = false; + if (ht > availht) + { + wt = (wt*availht)/ht; + ht = availht; + willscale = true; + } + if (willscale || _style.canScale()) { descent = ((gzoom*_style.getPicture()->height())/100-ascent)/2; ascent = ((gzoom*_style.getPicture()->height())/100+ascent)/2; } + } + /* else if (fc != NULL) { @@ -529,18 +774,91 @@ void CDrawBuffer::resize() if (extra > m_lineExtraSpacing) m_lineExtraSpacing = extra; m_lineSpacing = m_ascent+m_descent+m_lineExtraSpacing; } + m_showPartial = (m_lineSpacing > t_lineSpacing); int lead = fc->getlead(); if (lead != 0) { - int xt = (lead*m_lineSpacing+5)/10; - m_descent += xt; + int xt = (lead*t_lineSpacing+5)/10; + m_lineExtraSpacing += xt; m_lineSpacing += xt; } if (m_bSop) { int xt = ((segs.begin()->style.getExtraSpace()+fc->getextraspace())*fc->getsize(segs.begin()->style)+5)/10; -// odebug << "ExtraSpace:" << xt << "" << oendl; + // qDebug("ExtraSpace:%d", xt); m_ascent += xt; m_lineSpacing += xt; } } + else + { + m_showPartial = true; + int maxheight = 0; + for (CList<textsegment>::iterator iter = segs.begin(); iter != segs.end(); iter++) + { + CStyle _style = iter->style; + if (_style.isPicture()) + { + int ht = 0; + if (_style.canScale()) + { + ht = ((gzoom*_style.getPicture()->height())/100); + } + else + { + ht = _style.getPicture()->height(); + } + if (ht > availht) + { + ht = availht; + } + if (ht > maxheight) maxheight = ht; + } + } + m_ascent = maxheight/2; + m_descent = maxheight-m_ascent; + m_lineExtraSpacing = 0; + m_lineSpacing = m_ascent+m_descent; + } +} + +CStyle* CDrawBuffer::getNextLink(int& offset) +{ + CStyle* ret = NULL; + for (CList<textsegment>::iterator iter = segs.begin(); iter != segs.end(); ++iter) + { + if (offset < iter->start && iter->style.getLink()) + { + ret = &(iter->style); + offset = iter->start; + qDebug("Found a link at offset %d!", offset); + break; + } + } + return ret; +} + +int CDrawBuffer::invertLink(int offset) +{ + for (CList<textsegment>::iterator iter = segs.begin(); iter != segs.end(); ++iter) + { + if (offset <= iter->start && iter->style.getLink()) + { + iter->style.invert(); + unsigned long currentvalue = iter->style.getData(); + qDebug("Link data %u", currentvalue); + CList<textsegment>::iterator next = iter; + ++next; + while (next != segs.end() && (currentvalue == next->style.getData()) && next->style.getLink()) + { + next->style.invert(); + offset = next->start; + iter++; + next++; + } + return offset; + } + } + qDebug("Failed to invert"); + return offset; +} |