add this too

1 files changed, 211 insertions, 0 deletions

diff --git a/noncore/apps/opie-reader/CDrawBuffer.cpp b/noncore/apps/opie-reader/CDrawBuffer.cpp
new file mode 100644
index 0000000..2ceb2d5
--- a/dev/null
+++ b/noncore/apps/opie-reader/CDrawBuffer.cpp
@@ -0,0 +1,211 @@
+
+#include "CDrawBuffer.h"
+#include "FontControl.h"
+#include <qfontmetrics.h>
+#include <qpainter.h>
+
+void CDrawBuffer::setright(CDrawBuffer& rhs, int f)
+{
+  int i;
+//  qDebug("Trying 1:%d:%s", f, (const char*)toQString(rhs.data()));
+  len = rhs.len;
+  m_maxstyle = rhs.m_maxstyle;
+  m_ascent = rhs.m_ascent;
+  m_descent = rhs.m_descent;
+  m_lineSpacing = rhs.m_lineSpacing;
+  while (!segs.isEmpty()) segs.erase(0);
+  for (CList<textsegment>::iterator iter = rhs.segs.begin(); iter != rhs.segs.end(); )
+  {
+      CList<textsegment>::iterator next = iter;
+      iter++;
+      if (iter == rhs.segs.end() || iter->start > f)
+      {
+	  int st = next->start-f;
+	  if (st < 0) st = 0;
+	  segs.push_back(textsegment(st,next->style));
+      }
+  }
+  for (i = f; rhs[i] != '\0'; i++) (*this)[i-f] = rhs[i];
+  (*this)[i-f] = '\0';
+  len = i;
+//  qDebug("Tried 1");
+}
+
+CDrawBuffer& CDrawBuffer::operator=(CDrawBuffer& rhs)
+{
+  int i;
+//  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;
+  while (!segs.isEmpty()) segs.erase(0);
+  for (CList<textsegment>::iterator iter = rhs.segs.begin(); iter != rhs.segs.end(); iter++)
+  {
+      segs.push_back(*iter);
+  }
+  for (i = 0; rhs[i] != '\0'; i++) (*this)[i] = rhs[i];
+  (*this)[i] = '\0';
+  len = i;
+//  qDebug("Tried 2");
+  return *this;
+}
+
+CDrawBuffer& CDrawBuffer::operator=(const tchar*sztmp)
+{
+  int i;
+  while (!segs.isEmpty()) segs.erase(0);
+  segs.push_back(textsegment(0, CStyle()));
+  for (i = 0; sztmp[i] != '\0'; i++) (*this)[i] = sztmp[i];
+  (*this)[i] = '\0';
+  len = i;
+  return *this;
+}
+
+void CDrawBuffer::empty()
+{
+    len = 0;
+    (*this)[0] = 0;
+    while (!segs.isEmpty()) segs.erase(0);
+    segs.push_back(textsegment(0,CStyle()));
+    m_maxstyle = m_ascent = m_descent = m_lineSpacing = 0;
+}
+
+void CDrawBuffer::addch(tchar ch, CStyle _style/* = ucFontBase*/)
+{
+    if (len == 0)
+    {
+	int thissize = fc->getsize(_style);
+	m_maxstyle = thissize;
+	m_ascent = fc->ascent(_style);
+	m_descent = fc->descent(_style);
+	m_lineSpacing = fc->lineSpacing(_style);
+	segs.first().start = 0;
+	segs.first().style = _style;
+    }
+    else if (_style != segs.last().style)
+    {
+	int thissize = fc->getsize(_style);
+	if (thissize > m_maxstyle)
+	{
+	    m_maxstyle = thissize;
+	    m_ascent = fc->ascent(_style);
+	    m_descent = fc->descent(_style);
+	    m_lineSpacing = fc->lineSpacing(_style);
+	}
+	segs.push_back(textsegment(len, _style));
+    }
+    (*this)[len++] = ch;
+}
+
+void CDrawBuffer::truncate(int n)
+{
+    len = n;
+    (*this)[n] = 0;
+}
+
+int CDrawBuffer::width(int numchars = -1)
+{
+    int currentx = 0, end = 0;
+    QString text = toQString(data());
+    CList<textsegment>::iterator textstart = segs.begin();
+    CList<textsegment>::iterator textend = textstart;
+    do
+    {
+	textend++;
+	end = (textend != segs.end()) ? textend->start : length();
+	if (numchars >= 0 && end > numchars)
+	{
+	    end = numchars;
+	}
+	CStyle currentstyle = textstart->style;
+	QFont f(fc->name(), fc->getsize(currentstyle), (currentstyle.isBold()) ? QFont::Bold : QFont::Normal, (currentstyle.isItalic()) );
+	QString str = text.mid(textstart->start, end-textstart->start);
+	QFontMetrics fm(f);
+	currentx += fm.width(str);
+	textstart = textend;
+    }
+    while (textend != segs.end() && end != numchars);
+    return currentx;
+}
+
+void CDrawBuffer::render(QPainter* _p, int _y, bool _bMono, int _charWidth, int scwidth)
+{
+    int currentx = 0;
+    QString text = toQString(data());
+    CList<textsegment>::iterator textstart = segs.begin();
+    StyleType align = textstart->style.getJustify();
+    switch (align)
+    {
+	case CStyle::m_AlignRight:
+	{
+//	    int linelength = width();
+	    currentx = scwidth - width();
+	}
+	break;
+	case CStyle::m_AlignCentre:
+	{
+//	    int linelength = width();
+	    currentx = (scwidth - width())/2;
+	}
+	break;
+	case CStyle::m_AlignJustify:
+	case CStyle::m_AlignLeft:
+	    break;
+    }
+    CList<textsegment>::iterator textend = textstart;
+    do
+    {
+	textend++;
+	int end = (textend != segs.end()) ? textend->start : length();
+	CStyle currentstyle = textstart->style;
+	QFont f(fc->name(), fc->getsize(currentstyle), (currentstyle.isBold()) ? QFont::Bold : QFont::Normal, (currentstyle.isItalic()) );
+	_p->setFont(f);
+	QString str = text.mid(textstart->start, end-textstart->start);
+	_p->setPen(QColor(currentstyle.Red(), currentstyle.Green(), currentstyle.Blue()));
+	if (_bMono)
+	{
+	    for (int i = 0; i < str.length(); i++)
+	    {
+		_p->drawText( currentx + i*_charWidth, _y, QString(str[i]));
+	    }
+	    currentx += str.length()*_charWidth;
+	}
+	else
+	{
+	    _p->drawText( currentx, _y, str);
+	    QFontMetrics fm(f);
+	    currentx += fm.width(str);
+	}
+	textstart = textend;
+    }
+    while (textend != segs.end());
+}
+
+CStyle CDrawBuffer::laststyle()
+{
+    return segs.last().style;
+}
+
+bool CDrawBuffer::isLink(int numchars, size_t& tgt)
+{
+    int end = 0;
+    CStyle currentstyle;
+    CList<textsegment>::iterator textstart = segs.begin();
+    CList<textsegment>::iterator textend = textstart;
+    do
+    {
+	textend++;
+	end = (textend != segs.end()) ? textend->start : length();
+	if (numchars >= 0 && end > numchars)
+	{
+	    end = numchars;
+	}
+	currentstyle = textstart->style;
+	textstart = textend;
+    }
+    while (textend != segs.end() && end != numchars);
+    tgt = currentstyle.getData();
+    return currentstyle.getLink();
+}