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docs and example for wxDC::DrawPolyPolygon() (patch 882189)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@26011 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2004-02-29 23:31:02 +00:00
parent b5d43d1d73
commit 163dc80eff
2 changed files with 45 additions and 6 deletions
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31
docs/latex/wx/dc.tex
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@ -395,11 +395,34 @@ of wxPoint objects.}
\membersection{wxDC::DrawPolyPolygon}\label{wxdcdrawpolypolygon}
\func{void}{DrawPolyPolygon}{\param{int }{n}, \param{int }{start[]}, \param{wxPoint }{points[]}, \param{wxCoord }{xoffset}, \param{wxCoord }{yoffset}, \param{int }{fillStyle = \texttt{wxODDEVEN\_RULE}}}
\func{void}{DrawPolyPolygon}{\param{int}{ n}, \param{int}{ count[]}, \param{wxPoint}{ points[]}, \param{wxCoord}{ xoffset = 0}, \param{wxCoord}{ yoffset = 0},\\
\param{int }{fill\_style = wxODDEVEN\_RULE}}
Draw many polygons at once. For the platforms providing a native implementation
of this function (Windows and PostScript-based wxDC), this is more efficient
than using \helpref{DrawPolygon}{wxdcdrawpolygon} in a loop.
Draws two or more filled polygons using an array of {\it points}, adding the
optional offset coordinates.
Notice that for the platforms providing a native implementation
of this function (Windows and PostScript-based wxDC currently), this is more
efficient than using \helpref{DrawPolygon}{wxdcdrawpolygon} in a loop.
{\it n} specifies the number of polygons to draw, the array {\it count} of size
{\it n} specifies the number of points in each of the polygons in the
{\it points} array.
The last argument specifies the fill rule: {\bf wxODDEVEN\_RULE} (the default)
or {\bf wxWINDING\_RULE}.
The current pen is used for drawing the outline, and the current brush for
filling the shape. Using a transparent brush suppresses filling.
The polygons maybe disjoint or overlapping. Each polygon specified in a call to
{\bf DrawPolyPolygon} must be closed. Unlike polygons created by the
\helpref{DrawPolygon}{wxdcdrawpolygon} member function, the polygons created by
{\bf DrawPolyPolygon} are not closed automatically.
\pythonnote{Not implemented yet}
\perlnote{Not implemented yet}
\membersection{wxDC::DrawPoint}\label{wxdcdrawpoint}

20
samples/drawing/drawing.cpp
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@ -424,9 +424,25 @@ void MyCanvas::DrawTestPoly(wxDC& dc)
_T("hatched"), 10, 10);
dc.DrawText(_T("except for the central region and the right ")
_T("one entirely hatched"), 10, 30);
dc.DrawText(_T("The third star only has a hatched outline"), 10, 50);
dc.DrawPolygon(WXSIZEOF(star), star);
dc.DrawPolygon(WXSIZEOF(star), star, 160, 0, wxWINDING_RULE);
dc.DrawPolygon(WXSIZEOF(star), star, 0, 30);
dc.DrawPolygon(WXSIZEOF(star), star, 160, 30, wxWINDING_RULE);
wxPoint star2[10];
star2[0] = wxPoint(0, 100);
star2[1] = wxPoint(-59, -81);
star2[2] = wxPoint(95, 31);
star2[3] = wxPoint(-95, 31);
star2[4] = wxPoint(59, -81);
star2[5] = wxPoint(0, 80);
star2[6] = wxPoint(-47, -64);
star2[7] = wxPoint(76, 24);
star2[8] = wxPoint(-76, 24);
star2[9] = wxPoint(47, -64);
int count[2] = {5, 5};
dc.DrawPolyPolygon(WXSIZEOF(count), count, star2, 450, 150);
}
void MyCanvas::DrawTestLines( int x, int y, int width, wxDC &dc )