X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a660d684eda27638bca0384b2058911a31c8e845..8b6e6947fc8fb946391740d66b140413eccb6b6c:/docs/latex/wx/region.tex diff --git a/docs/latex/wx/region.tex b/docs/latex/wx/region.tex index 1d3c224ada..a5c3001478 100644 --- a/docs/latex/wx/region.tex +++ b/docs/latex/wx/region.tex @@ -8,6 +8,14 @@ reference counting, so copying and assignment operations are fast. \helpref{wxGDIObject}{wxgdiobject}\\ \helpref{wxObject}{wxobject} +\wxheading{Include files} + + + +\wxheading{See also} + +\helpref{wxRegionIterator}{wxregioniterator} + \latexignore{\rtfignore{\wxheading{Members}}} \membersection{wxRegion::wxRegion}\label{wxregionconstr} @@ -32,6 +40,14 @@ Constructs a rectangular region a wxRect object. Constructs a region by copying another region. +\func{}{wxRegion}{\param{size\_t}{ n}, \param{const wxPoint }{*points}, \param{int }{fillStyle = wxWINDING\_RULE}} + +Constructs a region corresponding to the polygon made of {\it n} points in the +provided array. {\it fillStyle} parameter may have values +{\tt wxWINDING\_RULE} or {\tt wxODDEVEN\_RULE}. + +{\bf NB:} This constructor is only implemented for Win32 and GTK+ wxWindows ports. + \membersection{wxRegion::\destruct{wxRegion}} \func{}{\destruct{wxRegion}}{\void} @@ -106,10 +122,10 @@ is stored in this region. \constfunc{bool}{IsEmpty}{\void} -\func{bool}{IsEmpty}{\void} - Returns TRUE if the region is empty, FALSE otherwise. +\membersection{wxRegion::Subtract}\label{wxregionsubstract} + \func{bool}{Subtract}{\param{const wxRect\&}{ rect}} Subtracts a rectangular region from this region. @@ -179,4 +195,111 @@ for any overlapping areas. The result is stored in this region. Copies {\it region} by reference counting. +\section{\class{wxRegionIterator}}\label{wxregioniterator} + +This class is used to iterate through the rectangles in a region, +typically when examining the damaged regions of a window within an OnPaint call. + +To use it, construct an iterator object on the stack and loop through the +regions, testing the object and incrementing the iterator at the end of the loop. + +See \helpref{wxWindow::OnPaint}{wxwindowonpaint} for an example of use. + +\wxheading{Derived from} + +\helpref{wxObject}{wxobject} + +\wxheading{Include files} + + + +\wxheading{See also} + +\helpref{wxWindow::OnPaint}{wxwindowonpaint} + +\latexignore{\rtfignore{\wxheading{Members}}} + +\membersection{wxRegionIterator::wxRegionIterator} + +\func{}{wxRegionIterator}{\void} + +Default constructor. + +\func{}{wxRegionIterator}{\param{const wxRegion\&}{ region}} + +Creates an iterator object given a region. + +\membersection{wxRegionIterator::GetX} + +\constfunc{long}{GetX}{\void} + +Returns the x value for the current region. + +\membersection{wxRegionIterator::GetY} + +\constfunc{long}{GetY}{\void} + +Returns the y value for the current region. + +\membersection{wxRegionIterator::GetW} + +\constfunc{long}{GetW}{\void} + +An alias for GetWidth. + +\membersection{wxRegionIterator::GetWidth} + +\constfunc{long}{GetWidth}{\void} + +Returns the width value for the current region. + +\membersection{wxRegionIterator::GetH} + +\constfunc{long}{GetH}{\void} + +An alias for GetHeight. + +\membersection{wxRegionIterator::GetHeight} + +\constfunc{long}{GetWidth}{\void} + +Returns the width value for the current region. + +\membersection{wxRegionIterator::GetRect} + +\constfunc{wxRect}{GetRect}{\void} + +Returns the current rectangle. + +\membersection{wxRegionIterator::HaveRects} + +\constfunc{bool}{HaveRects}{\void} + +Returns TRUE if there are still some rectangles; otherwise returns FALSE. + +\membersection{wxRegionIterator::Reset} + +\func{void}{Reset}{\void} + +Resets the iterator to the beginning of the rectangles. + +\func{void}{Reset}{\param{const wxRegion\&}{ region}} + +Resets the iterator to the given region. + +\membersection{wxRegionIterator::operator $++$} + +\func{void}{operator $++$}{\void} + +Increment operator. Increments the iterator to the next region. + +\pythonnote{A wxPython alias for this operator is called {\tt Next}.} + +\membersection{wxRegionIterator::operator bool} + +\constfunc{}{operator bool}{\void} + +Returns TRUE if there are still some rectangles; otherwise returns FALSE. + +You can use this to test the iterator object as if it were of type bool.