X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/aef94d68609474317f4e6ce2394466750e992da9..a84ece11fffdde5d1bbd254ba58ac3cee79c2e77:/docs/latex/wx/dc.tex diff --git a/docs/latex/wx/dc.tex b/docs/latex/wx/dc.tex index 94354be934..dc731b363d 100644 --- a/docs/latex/wx/dc.tex +++ b/docs/latex/wx/dc.tex @@ -211,7 +211,8 @@ mapping mode. \func{wxCoord}{DeviceToLogicalXRel}{\param{wxCoord}{ x}} Convert device X coordinate to relative logical coordinate, using the current -mapping mode. Use this function for converting a width, for example. +mapping mode but ignoring the x axis orientation. +Use this function for converting a width, for example. \membersection{wxDC::DeviceToLogicalY}\label{wxdcdevicetologicaly} @@ -225,7 +226,8 @@ mapping mode. \func{wxCoord}{DeviceToLogicalYRel}{\param{wxCoord}{ y}} Convert device Y coordinate to relative logical coordinate, using the current -mapping mode. Use this function for converting a height, for example. +mapping mode but ignoring the y axis orientation. +Use this function for converting a height, for example. \membersection{wxDC::DrawArc}\label{wxdcdrawarc} @@ -257,13 +259,33 @@ of the bitmap (all bits set to 1), and the current text background colour to dra Draws a check mark inside the given rectangle. +\membersection{wxDC::DrawCircle}\label{wxdcdrawcircle} + +\func{void}{DrawCircle}{\param{wxCoord}{ x}, \param{wxCoord}{ y}, \param{wxCoord}{ radius}} + +\func{void}{DrawCircle}{\param{const wxPoint\&}{ pt}, \param{wxCoord}{ radius}} + +Draws a circle with the given centre and radius. + +\wxheading{See also} + +\helpref{DrawEllipse}{wxdcdrawellipse} + \membersection{wxDC::DrawEllipse}\label{wxdcdrawellipse} \func{void}{DrawEllipse}{\param{wxCoord}{ x}, \param{wxCoord}{ y}, \param{wxCoord}{ width}, \param{wxCoord}{ height}} -Draws an ellipse contained in the rectangle with the given top left corner, and with the -given size. The current pen is used for the outline and the current brush for -filling the shape. +\func{void}{DrawEllipse}{\param{const wxPoint\&}{ pt}, \param{const wxSize\&}{ size}} + +\func{void}{DrawEllipse}{\param{const wxRect\&}{ rect}} + +Draws an ellipse contained in the rectangle specified either with the given top +left corner and the given size or directly. The current pen is used for the +outline and the current brush for filling the shape. + +\wxheading{See also} + +\helpref{DrawCircle}{wxdcdrawcircle} \membersection{wxDC::DrawEllipticArc}\label{wxdcdrawellipticarc} @@ -364,6 +386,11 @@ for filling the shape. Draws the text rotated by {\it angle} degrees. +{\bf NB:} Under Win9x only TrueType fonts can be drawn by this function. In +particular, a font different from {\tt wxNORMAL\_FONT} should be used as the +latter is not a TrueType font. {\tt wxSWISS\_FONT} is an example of a font +which is. + \wxheading{See also} \helpref{DrawText}{wxdcdrawtext} @@ -470,7 +497,8 @@ the {\it current brush colour}, and using a style: \item wxFLOOD\_BORDER: the area to be flooded is bounded by the given colour. \end{itemize} -{\it Note:} this function is available in MS Windows only. +{\it Note:} The present implementation for non-Windows platforms may fail to find +colour borders if the pixels do not match the colour exactly. \membersection{wxDC::GetBackground}\label{wxdcgetbackground} @@ -520,7 +548,7 @@ Gets the rectangle surrounding the current clipping region. rectangle are returned as a tuple.} \perlnote{This method takes no arguments and returns a four element list -{\tt ( \$x, \$y, \$width, \$height )}} +{\tt ( x, y, width, height )}} \membersection{wxDC::GetFont}\label{wxdcgetfont} @@ -604,7 +632,7 @@ implements the following methods:\par \indented{2cm}{\begin{twocollist} \twocolitem{{\bf GetSize()}}{Returns a Wx::Size} \twocolitem{{\bf GetSizeWH()}}{Returns a 2-element list - {\tt ( \$width, \$height )}} + {\tt ( width, height )}} \end{twocollist} }} @@ -645,7 +673,7 @@ See also \helpref{wxFont}{wxfont}, \helpref{wxDC::SetFont}{wxdcsetfont}. \perlnote{In wxPerl this method is implemented as {\bf GetTextExtent( string, font = undef )} returning a four element - array {\tt ( \$width, \$height, \$descent, \$externalLeading )} + array {\tt ( width, height, descent, externalLeading )} } \membersection{wxDC::GetTextForeground}\label{wxdcgettextforeground} @@ -664,7 +692,7 @@ Gets the current text foreground colour (see \helpref{wxDC::SetTextForeground}{w Gets the current user scale factor (set by \helpref{SetUserScale}{wxdcsetuserscale}). \perlnote{In wxPerl this method takes no arguments and returna a two element - array {\tt ( \$x, \$y )}} + array {\tt ( x, y )}} \membersection{wxDC::LogicalToDeviceX}\label{wxdclogicaltodevicex} @@ -678,7 +706,8 @@ mapping mode. \func{wxCoord}{LogicalToDeviceXRel}{\param{wxCoord}{ x}} Converts logical X coordinate to relative device coordinate, using the current -mapping mode. Use this for converting a width, for example. +mapping mode but ignoring the x axis orientation. +Use this for converting a width, for example. \membersection{wxDC::LogicalToDeviceY}\label{wxdclogicaltodevicey} @@ -692,7 +721,8 @@ mapping mode. \func{wxCoord}{LogicalToDeviceYRel}{\param{wxCoord}{ y}} Converts logical Y coordinate to relative device coordinate, using the current -mapping mode. Use this for converting a height, for example. +mapping mode but ignoring the y axis orientation. +Use this for converting a height, for example. \membersection{wxDC::MaxX}\label{wxdcmaxx} @@ -735,6 +765,23 @@ doesn't contain anything. \helpref{CalcBoundingBox}{wxdccalcboundingbox} +\membersection{wxDC::SetAxisOrientation}\label{wxdcsetaxisorientation} + +\func{void}{SetAxisOrientation}{\param{bool}{ xLeftRight}, + \param{bool}{ yBottomUp}} + +Sets the x and y axis orientation (i.e., the direction from lowest to +highest values on the axis). The default orientation is the natural +orientation, e.g. x axis from left to right and y axis from bottom up. + +\wxheading{Parameters} + +\docparam{xLeftRight}{True to set the x axis orientation to the natural +left to right orientation, false to invert it.} + +\docparam{yBottomUp}{True to set the y axis orientation to the natural +bottom up orientation, false to invert it.} + \membersection{wxDC::SetDeviceOrigin}\label{wxdcsetdeviceorigin} \func{void}{SetDeviceOrigin}{\param{wxCoord}{ x}, \param{wxCoord}{ y}} @@ -762,11 +809,21 @@ whether text will be drawn with a background colour or not. \func{void}{SetClippingRegion}{\param{wxCoord}{ x}, \param{wxCoord}{ y}, \param{wxCoord}{ width}, \param{wxCoord}{ height}} +\func{void}{SetClippingRegion}{\param{const wxPoint\& }{pt}, \param{const wxSize\& }{sz}} + +\func{void}{SetClippingRegion}{\param{const wxRect\&}{ rect}} + \func{void}{SetClippingRegion}{\param{const wxRegion\&}{ region}} -Sets the clipping region for the DC. The clipping region is an area -to which drawing is restricted. Possible uses for the clipping region are for clipping text -or for speeding up window redraws when only a known area of the screen is damaged. +Sets the clipping region for this device context to the intersection of the +given region described by the parameters of this method and the previously set +clipping region. You should call +\helpref{DestroyClippingRegion}{wxdcdestroyclippingregion} if you want to set +the clipping region exactly to the region specified. + +The clipping region is an area to which drawing is restricted. Possible uses +for the clipping region are for clipping text or for speeding up window redraws +when only a known area of the screen is damaged. \wxheading{See also} @@ -802,11 +859,8 @@ when drawing into a monochrome bitmap. \func{void}{SetFont}{\param{const wxFont\& }{font}} -Sets the current font for the DC. - -If the argument is wxNullFont, the current font is selected out of the device -context, and the original font restored, allowing the current font to -be destroyed safely. +Sets the current font for the DC. It must be a valid font, in particular you +should not pass {\tt wxNullFont} to this method. See also \helpref{wxFont}{wxfont}.