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Support multi-line text in wxSVGFileDC.

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This commit is contained in:
Maarten Bent 2016-03-15 21:47:10 +01:00
parent 5084c6d423
commit b4c9927892
1 changed files with 69 additions and 59 deletions
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128
src/common/dcsvg.cpp
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@ -367,11 +367,14 @@ void wxSVGFileDCImpl::DoDrawRotatedText(const wxString& sText, wxCoord x, wxCoor
NewGraphicsIfNeeded();
wxString s, sTmp;
// calculate bounding box
wxCoord w, h, desc;
DoGetTextExtent(sText, &w, &h, &desc);
// Get extent of whole text.
wxCoord w, h, heightLine;
GetOwner()->GetMultiLineTextExtent(sText, &w, &h, &heightLine);
double rad = wxDegToRad(angle);
// Compute the shift for the origin of the next line.
const double rad = wxDegToRad(angle);
const double dx = heightLine * sin(rad);
const double dy = heightLine * cos(rad);
// wxT("upper left") and wxT("upper right")
CalcBoundingBox(x, y);
@ -394,74 +397,81 @@ void wxSVGFileDCImpl::DoDrawRotatedText(const wxString& sText, wxCoord x, wxCoor
write(s);
}
// convert x,y to SVG text x,y (the coordinates of the text baseline)
x = (wxCoord)(x + (h-desc)*sin(rad));
y = (wxCoord)(y + (h-desc)*cos(rad));
//now do the text itself
s.Printf (wxT(" <text x=\"%d\" y=\"%d\" "),x,y );
sTmp = m_font.GetFaceName();
if (sTmp.Len() > 0) s += wxT("style=\"font-family:") + sTmp + wxT("; ");
else s += wxT("style=\" ");
wxString fontweight;
switch ( m_font.GetWeight() )
// Draw all text line by line
const wxArrayString lines = wxSplit(sText, '\n', '\0');
for (size_t lineNum = 0; lineNum < lines.size(); lineNum++)
{
case wxFONTWEIGHT_MAX:
wxFAIL_MSG( wxS("invalid font weight value") );
wxFALLTHROUGH;
// convert x,y to SVG text x,y (the coordinates of the text baseline)
wxCoord ww, hh, desc;
DoGetTextExtent(lines[lineNum], &ww, &hh, &desc);
int xx = x + wxRound(lineNum * dx) + (hh - desc) * sin(rad);
int yy = y + wxRound(lineNum * dy) + (hh - desc) * cos(rad);
case wxFONTWEIGHT_NORMAL:
fontweight = wxS("normal");
break;
//now do the text itself
s.Printf (wxT(" <text x=\"%d\" y=\"%d\" "), xx, yy );
case wxFONTWEIGHT_LIGHT:
fontweight = wxS("lighter");
break;
sTmp = m_font.GetFaceName();
if (sTmp.Len() > 0) s += wxT("style=\"font-family:") + sTmp + wxT("; ");
else s += wxT("style=\" ");
case wxFONTWEIGHT_BOLD:
fontweight = wxS("bold");
break;
}
wxString fontweight;
switch (m_font.GetWeight())
{
case wxFONTWEIGHT_MAX:
wxFAIL_MSG(wxS("invalid font weight value"));
wxFALLTHROUGH;
wxASSERT_MSG( !fontweight.empty(), wxS("unknown font weight value") );
case wxFONTWEIGHT_NORMAL:
fontweight = wxS("normal");
break;
s += wxT("font-weight:") + fontweight + wxT("; ");
case wxFONTWEIGHT_LIGHT:
fontweight = wxS("lighter");
break;
wxString fontstyle;
switch ( m_font.GetStyle() )
{
case wxFONTSTYLE_MAX:
wxFAIL_MSG( wxS("invalid font style value") );
wxFALLTHROUGH;
case wxFONTWEIGHT_BOLD:
fontweight = wxS("bold");
break;
}
case wxFONTSTYLE_NORMAL:
fontstyle = wxS("normal");
break;
wxASSERT_MSG(!fontweight.empty(), wxS("unknown font weight value"));
case wxFONTSTYLE_ITALIC:
fontstyle = wxS("italic");
break;
s += wxT("font-weight:") + fontweight + wxT("; ");
case wxFONTSTYLE_SLANT:
fontstyle = wxS("oblique");
break;
}
wxString fontstyle;
switch (m_font.GetStyle())
{
case wxFONTSTYLE_MAX:
wxFAIL_MSG(wxS("invalid font style value"));
wxFALLTHROUGH;
wxASSERT_MSG( !fontstyle.empty(), wxS("unknown font style value") );
case wxFONTSTYLE_NORMAL:
fontstyle = wxS("normal");
break;
s += wxT("font-style:") + fontstyle + wxT("; ");
case wxFONTSTYLE_ITALIC:
fontstyle = wxS("italic");
break;
sTmp.Printf (wxT("font-size:%dpt; "), m_font.GetPointSize() );
s += sTmp;
//text will be solid, unless alpha value isn't opaque in the foreground colour
s += wxBrushString(m_textForegroundColour) + wxPenString(m_textForegroundColour);
sTmp.Printf ( wxT("stroke-width:0;\" transform=\"rotate( %s %d %d ) \" >"), NumStr(-angle), x,y );
s += sTmp + wxMarkupParser::Quote(sText) + wxT("</text> ") + wxT("\n");
if (m_OK)
{
write(s);
case wxFONTSTYLE_SLANT:
fontstyle = wxS("oblique");
break;
}
wxASSERT_MSG(!fontstyle.empty(), wxS("unknown font style value"));
s += wxT("font-style:") + fontstyle + wxT("; ");
sTmp.Printf(wxT("font-size:%dpt; "), m_font.GetPointSize());
s += sTmp;
//text will be solid, unless alpha value isn't opaque in the foreground colour
s += wxBrushString(m_textForegroundColour) + wxPenString(m_textForegroundColour);
sTmp.Printf ( wxT("stroke-width:0;\" transform=\"rotate( %s %d %d ) \" >"), NumStr(-angle), xx, yy );
s += sTmp + wxMarkupParser::Quote(lines[lineNum]) + wxT("</text> ") + wxT("\n");
if (m_OK)
{
write(s);
}
}
}