X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8d8fbb9d1bf9d40e840a9c4e80842049fb7ef1ff..c6b65b76a196e1aa2313f89f6fc609d497c388a0:/docs/latex/wx/rect.tex

diff --git a/docs/latex/wx/rect.tex b/docs/latex/wx/rect.tex
index 4ea50eb7d5..44239884dd 100644
--- a/docs/latex/wx/rect.tex
+++ b/docs/latex/wx/rect.tex
@@ -16,6 +16,7 @@ None
 
 \latexignore{\rtfignore{\wxheading{Members}}}
 
+
 \membersection{wxRect::wxRect}\label{wxrectctor}
 
 \func{}{wxRect}{\void}
@@ -38,30 +39,35 @@ Creates a wxRect object from position and size values.
 
 Creates a wxRect object from size values at the origin.
 
+
 \membersection{wxRect::x}\label{wxrectx}
 
 \member{int}{x}
 
 x coordinate of the top-level corner of the rectangle.
 
+
 \membersection{wxRect::y}\label{wxrecty}
 
 \member{int}{y}
 
 y coordinate of the top-level corner of the rectangle.
 
+
 \membersection{wxRect::width}\label{wxrectwidth}
 
 \member{int}{width}
 
 Width member.
 
+
 \membersection{wxRect::height}\label{wxrectheight}
 
 \member{int}{height}
 
 Height member.
 
+
 \membersection{wxRect::Deflate}\label{wxrectdeflate}
 
 \func{void}{Deflate}{\param{wxCoord }{dx}, \param{wxCoord }{dy}}
@@ -70,91 +76,101 @@ Height member.
 
 \constfunc{wxRect}{Deflate}{\param{wxCoord }{dx}, \param{wxCoord }{dy}}
 
-Decrease the rectangle size by {\it dx} in x direction and {\it dy} in y
-direction. Both (or one of) parameters may be negative to increase the
-rectngle size. This method is the opposite of \helpref{Inflate}{wxrectinflate}.
-
-The second form uses the same {\it diff} for both {\it dx} and {\it dy}.
+Decrease the rectangle size.
 
-The first two versions modify the rectangle in place, the last one returns a
-new rectangle leaving this one unchanged.
+This method is the opposite from \helpref{Inflate}{wxrectinflate}:
+Deflate(a, b) is equivalent to Inflate(-a, -b).
+Please refer to \helpref{Inflate}{wxrectinflate} for full description.
 
 \wxheading{See also}
 
 \helpref{Inflate}{wxrectinflate}
 
+
 \membersection{wxRect::GetBottom}\label{wxrectgetbottom}
 
 \constfunc{int}{GetBottom}{\void}
 
 Gets the bottom point of the rectangle.
 
+
 \membersection{wxRect::GetHeight}\label{wxrectgetheight}
 
 \constfunc{int}{GetHeight}{\void}
 
 Gets the height member.
 
+
 \membersection{wxRect::GetLeft}\label{wxrectgetleft}
 
 \constfunc{int}{GetLeft}{\void}
 
 Gets the left point of the rectangle (the same as \helpref{wxRect::GetX}{wxrectgetx}).
 
+
 \membersection{wxRect::GetPosition}\label{wxrectgetposition}
 
 \constfunc{wxPoint}{GetPosition}{\void}
 
 Gets the position.
 
+
 \membersection{wxRect::GetTopLeft}\label{wxrectgettopleft}
 
 \constfunc{wxPoint}{GetTopLeft}{\void}
 
 Gets the topleft position of the rectangle. (Same as GetPosition).
 
+
 \membersection{wxRect::GetBottomRight}\label{wxrectgetbottomright}
 
 \constfunc{wxPoint}{GetBottomRight}{\void}
 
 Gets the the bottom right position. Returns the bottom right point inside the rectangle.
 
+
 \membersection{wxRect::GetRight}\label{wxrectgetright}
 
 \constfunc{int}{GetRight}{\void}
 
 Gets the right point of the rectangle.
 
+
 \membersection{wxRect::GetSize}\label{wxrectgetsize}
 
 \constfunc{wxSize}{GetSize}{\void}
 
 Gets the size.
 
+
 \membersection{wxRect::GetTop}\label{wxrectgettop}
 
 \constfunc{int}{GetTop}{\void}
 
 Gets the top point of the rectangle (the same as \helpref{wxRect::GetY}{wxrectgety}).
 
+
 \membersection{wxRect::GetWidth}\label{wxrectgetwidth}
 
 \constfunc{int}{GetWidth}{\void}
 
 Gets the width member.
 
+
 \membersection{wxRect::GetX}\label{wxrectgetx}
 
 \constfunc{int}{GetX}{\void}
 
 Gets the x member.
 
+
 \membersection{wxRect::GetY}\label{wxrectgety}
 
 \constfunc{int}{GetY}{\void}
 
 Gets the y member.
 
+
 \membersection{wxRect::Inflate}\label{wxrectinflate}
 
 \func{void}{Inflate}{\param{wxCoord }{dx}, \param{wxCoord }{dy}}
@@ -163,20 +179,45 @@ Gets the y member.
 
 \constfunc{wxRect}{Inflate}{\param{wxCoord }{dx}, \param{wxCoord }{dy}}
 
-Increase the rectangle size by {\it dx} in x direction and {\it dy} in y
-direction. Both (or one of) parameters may be negative to decrease the
-rectangle size.
+Increases the size of the rectangle.
 
 The second form uses the same {\it diff} for both {\it dx} and {\it dy}.
 
 The first two versions modify the rectangle in place, the last one returns a
 new rectangle leaving this one unchanged.
 
+The left border is moved farther left and the right border is moved farther
+right by {\it dx}. The upper border is moved farther up and the bottom border
+is moved farther down by {\it dy}. (Note the the width and height of the
+rectangle thus change by 2*{\it dx} and 2*{\it dy}, respectively.) If one or
+both of {\it dx} and {\it dy} are negative, the opposite happens: the rectangle
+size decreases in the respective direction.
+
+Inflating and deflating behaves ``naturally''. Defined more precisely, that
+means:
+\begin{enumerate}
+    \item ``Real'' inflates (that is, {\it dx} and/or {\it dy} >= 0) are not
+        constrained. Thus inflating a rectangle can cause its upper left corner
+        to move into the negative numbers. (the versions prior to 2.5.4 forced
+        the top left coordinate to not fall below (0, 0), which implied a
+        forced move of the rectangle.)
+
+    \item Deflates are clamped to not reduce the width or height of the
+        rectangle below zero. In such cases, the top-left corner is nonetheless
+        handled properly. For example, a rectangle at (10, 10) with size (20,
+        40) that is inflated by (-15, -15) will become located at (20, 25) at
+        size (0, 10). Finally, observe that the width and height are treated
+        independently. In the above example, the width is reduced by 20,
+        whereas the height is reduced by the full 30 (rather than also stopping
+        at 20, when the width reached zero).
+\end{enumerate}
+
 \wxheading{See also}
 
 \helpref{Deflate}{wxrectdeflate}
 
-\membersection{wxRect:Inside}\label{wxrectinside}
+
+\membersection{wxRect::Inside}\label{wxrectinside}
 
 \constfunc{bool}{Inside}{\param{int }{x}, \param{int }{y}}
 
@@ -185,13 +226,15 @@ new rectangle leaving this one unchanged.
 Returns {\tt true} if the given point is inside the rectangle (or on its
 boundary) and {\tt false} otherwise.
 
-\membersection{wxRect:Intersects}\label{wxrectintersects}
+
+\membersection{wxRect::Intersects}\label{wxrectintersects}
 
 \constfunc{bool}{Intersects}{\param{const wxRect\& }{rect}}
 
 Returns {\tt true} if this rectangle has a non empty intersection with the
 rectangle {\it rect} and {\tt false} otherwise.
 
+
 \membersection{wxRect::Offset}\label{wxrectoffset}
 
 \func{void}{Offset}{\param{wxCoord }{dx}, \param{wxCoord }{dy}}
@@ -202,42 +245,60 @@ Moves the rectangle by the specified offset. If {\it dx} is positive, the
 rectangle is moved to the right, if {\it dy} is positive, it is moved to the
 bottom, otherwise it is moved to the left or top respectively.
 
+
 \membersection{wxRect::SetHeight}\label{wxrectsetheight}
 
 \func{void}{SetHeight}{\param{int}{ height}}
 
 Sets the height.
 
+
 \membersection{wxRect::SetWidth}\label{wxrectsetwidth}
 
 \func{void}{SetWidth}{\param{int}{ width}}
 
 Sets the width.
 
+
 \membersection{wxRect::SetX}\label{wxrectsetx}
 
 \func{void}{SetX}{\param{int}{ x}}
 
 Sets the x position.
 
+
 \membersection{wxRect::SetY}\label{wxrectsety}
 
 \func{void}{SetY}{\param{int}{ y}}
 
 Sets the y position.
 
+
+\membersection{wxRect::Union}\label{wxrectunion}
+
+\constfunc{wxRect}{Union}{\param{const wxRect\&}{ rect}}
+
+\func{wxRect\&}{Union}{\param{const wxRect\&}{ rect}}
+
+Modifies the rectangle to contain the bounding box of this rectangle and the
+one passed in as parameter. The const version returns the new rectangle, the
+other one modifies this rectangle in place.
+
+
 \membersection{wxRect::operator $=$}\label{wxrectassign}
 
 \func{void}{operator $=$}{\param{const wxRect\& }{rect}}
 
 Assignment operator.
 
+
 \membersection{wxRect::operator $==$}\label{wxrectequal}
 
 \func{bool}{operator $==$}{\param{const wxRect\& }{rect}}
 
 Equality operator.
 
+
 \membersection{wxRect::operator $!=$}\label{wxrectnotequal}
 
 \func{bool}{operator $!=$}{\param{const wxRect\& }{rect}}