\helpref{wxGDIObject}{wxgdiobject}\\
\helpref{wxObject}{wxobject}
+\wxheading{Include files}
+
+<wx/region.h>
+
+\wxheading{See also}
+
+\helpref{wxRegionIterator}{wxregioniterator}
+
\latexignore{\rtfignore{\wxheading{Members}}}
\membersection{wxRegion::wxRegion}\label{wxregionconstr}
Default constructor.
-\func{}{wxRegion}{\param{long}{ x}, \param{long}{ y}, \param{long}{ width}, \param{long}{ height}}
+\func{}{wxRegion}{\param{wxCoord}{ x}, \param{wxCoord}{ y}, \param{wxCoord}{ width}, \param{wxCoord}{ height}}
Constructs a rectangular region with the given position and size.
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+ wxWidgets ports.
+
+\func{}{wxRegion}{\param{const wxBitmap\&}{ bmp}}
+
+\func{}{wxRegion}{\param{const wxBitmap\&}{ bmp},
+ \param{const wxColour\&}{ transColour},
+ \param{int}{ tolerance = 0}}
+
+Constructs a region using the non-transparent pixels of a bitmap. See
+\helpref{Union}{wxregionunion} for more details.
+
+
\membersection{wxRegion::\destruct{wxRegion}}
\func{}{\destruct{wxRegion}}{\void}
On Windows, only wxOutRegion and wxInRegion are returned; a value wxInRegion then indicates that
all or some part of the region is contained in this region.
+\membersection{wxRegion::ConvertToBitmap}\label{wxregionconverttobitmap}
+
+\constfunc{wxBitmap}{ConvertToBitmap}{}
+
+Convert the region to a black and white bitmap with the white pixels
+being inside the region.
+
\membersection{wxRegion::GetBox}\label{wxregiongetbox}
\constfunc{void}{GetBox}{\param{long\& }{x}, \param{long\& }{y}, \param{long\& }{width}, \param{long\& }{height}}
\membersection{wxRegion::Intersect}\label{wxregionintersect}
-\func{bool}{Intersect}{\param{long}{ x}, \param{long}{ y}, \param{long}{ width}, \param{long}{ height}}
+\func{bool}{Intersect}{\param{wxCoord}{ x}, \param{wxCoord}{ y}, \param{wxCoord}{ width}, \param{wxCoord}{ height}}
Finds the intersection of this region and another, rectangular region, specified using position and size.
\wxheading{Return value}
-TRUE if successful, FALSE otherwise.
+{\tt true} if successful, {\tt false} otherwise.
\wxheading{Remarks}
\constfunc{bool}{IsEmpty}{\void}
-\func{bool}{IsEmpty}{\void}
+Returns {\tt true} if the region is empty, {\tt false} otherwise.
-Returns TRUE if the region is empty, FALSE otherwise.
+\membersection{wxRegion::Subtract}\label{wxregionsubstract}
\func{bool}{Subtract}{\param{const wxRect\&}{ rect}}
\wxheading{Return value}
-TRUE if successful, FALSE otherwise.
+{\tt true} if successful, {\tt false} otherwise.
\wxheading{Remarks}
This operation combines the parts of 'this' region that are not part of the second region.
The result is stored in this region.
+\membersection{wxRegion::Offset}\label{wxregionoffset}
+
+\func{bool}{Offset}{\param{wxCoord}{ x}, \param{wxCoord}{ y}}
+
+Moves the region by the specified offsets in horizontal and vertical
+directions.
+
+\wxheading{Return value}
+
+{\tt true} if successful, {\tt false} otherwise (the region is unchanged then).
+
\membersection{wxRegion::Union}\label{wxregionunion}
-\func{bool}{Union}{\param{long}{ x}, \param{long}{ y}, \param{long}{ width}, \param{long}{ height}}
+\func{bool}{Union}{\param{wxCoord}{ x}, \param{wxCoord}{ y}, \param{wxCoord}{ width}, \param{wxCoord}{ height}}
Finds the union of this region and another, rectangular region, specified using position and size.
Finds the union of this region and another region.
+\func{bool}{Union}{\param{const wxBitmap\&}{ bmp}}
+
+Finds the union of this region and the the non-transparent pixels of a
+bitmap. Bitmap's mask is used to determine transparency. If the bitmap doesn't
+have a mask, solid rectangle of bitmap's dimensions is used.
+
+\func{bool}{Union}{\param{const wxBitmap\&}{ bmp},
+ \param{const wxColour\&}{ transColour},
+ \param{int}{ tolerance = 0}}
+
+Finds the union of this region and the the non-transparent pixels of a
+bitmap. Colour to be treated as transparent is specified in the
+\arg{transColour} argument, along with an
+optional colour tolerance value.
+
\wxheading{Return value}
-TRUE if successful, FALSE otherwise.
+{\tt true} if successful, {\tt false} otherwise.
\wxheading{Remarks}
\membersection{wxRegion::Xor}\label{wxregionxor}
-\func{bool}{Xor}{\param{long}{ x}, \param{long}{ y}, \param{long}{ width}, \param{long}{ height}}
+\func{bool}{Xor}{\param{wxCoord}{ x}, \param{wxCoord}{ y}, \param{wxCoord}{ width}, \param{wxCoord}{ height}}
Finds the Xor of this region and another, rectangular region, specified using position and size.
\wxheading{Return value}
-TRUE if successful, FALSE otherwise.
+{\tt true} if successful, {\tt false} otherwise.
\wxheading{Remarks}
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{wxPaintEvent}{wxpaintevent} for an example of use.
+
+\wxheading{Derived from}
+
+\helpref{wxObject}{wxobject}
+
+\wxheading{Include files}
+
+<wx/region.h>
+
+\wxheading{See also}
+
+\helpref{wxPaintEvent}{wxpaintevent}
+
+\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{wxCoord}{GetX}{\void}
+
+Returns the x value for the current region.
+
+\membersection{wxRegionIterator::GetY}
+
+\constfunc{wxCoord}{GetY}{\void}
+
+Returns the y value for the current region.
+
+\membersection{wxRegionIterator::GetW}
+
+\constfunc{wxCoord}{GetW}{\void}
+
+An alias for GetWidth.
+
+\membersection{wxRegionIterator::GetWidth}
+
+\constfunc{wxCoord}{GetWidth}{\void}
+
+Returns the width value for the current region.
+
+\membersection{wxRegionIterator::GetH}
+
+\constfunc{wxCoord}{GetH}{\void}
+
+An alias for GetHeight.
+
+\membersection{wxRegionIterator::GetHeight}
+
+\constfunc{wxCoord}{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 {\tt true} if there are still some rectangles; otherwise returns {\tt 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 {\tt true} if there are still some rectangles; otherwise returns {\tt false}.
+
+You can use this to test the iterator object as if it were of type bool.
projects / wxWidgets.git / blobdiff