added wxSize::IncBy() and DecBy() methods

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41407 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -62,8 +62,11 @@ All:
 
 All (GUI):
 
-- Support for right-to-left text layout (Diaa Sami during Google Summer of Code)
+- Support for right-to-left text layout
+  (started by Diaa Sami during Google Summer of Code, with a lot of help from
+   Tim Kosse and others)
 - Added wxID_PAGE_SETUP standard id
+- Added wxSize::IncBy() and DecBy() methods
 
 wxMSW:
 

docs/latex/wx/size.tex

@@ -47,6 +47,27 @@ Creates a size object.
 
 
 
+\membersection{wxSize::DecBy}\label{wxsizedecby}
+
+\func{void}{DecBy}{\param{const wxSize\& }{size}}
+
+\func{void}{DecBy}{\param{int }{dx}, \param{int }{dy}}
+
+\func{void}{DecBy}{\param{int }{d}}
+
+Decreases the size in x- and y- directions
+
+\begin{enumerate}
+    \item By \arg{size.x} and \arg{size.y} for the first overload
+    \item By \arg{dx} and \arg{dy} for the second one
+    \item By \arg{d} and \arg{d} for the third one
+\end{enumerate}
+
+\wxheading{See also}
+
+\helpref{IncBy}{wxsizeincby}
+
+
 \membersection{wxSize::DecTo}\label{wxsizedecto}
 
 \func{void}{DecTo}{\param{const wxSize\& }{size}}
@@ -85,6 +106,26 @@ Gets the width member.
 Gets the height member.
 
 
+\membersection{wxSize::IncBy}\label{wxsizeincby}
+
+\func{void}{IncBy}{\param{const wxSize\& }{size}}
+
+\func{void}{IncBy}{\param{int }{dx}, \param{int }{dy}}
+
+\func{void}{IncBy}{\param{int }{d}}
+
+Increases the size in x- and y- directions
+
+\begin{enumerate}
+    \item By \arg{size.x} and \arg{size.y} for the first overload
+    \item By \arg{dx} and \arg{dy} for the second one
+    \item By \arg{d} and \arg{d} for the third one
+\end{enumerate}
+
+\wxheading{See also}
+
+\helpref{DecBy}{wxsizedecby}
+
 
 \membersection{wxSize::IncTo}\label{wxsizeincto}
 

include/wx/gdicmn.h

@@ -229,6 +229,15 @@ public:
     void DecTo(const wxSize& sz)
         { if ( sz.x < x ) x = sz.x; if ( sz.y < y ) y = sz.y; }
 
+    void IncBy(int dx, int dy) { x += dx; y += dy; }
+    void IncBy(const wxSize& sz) { IncBy(sz.x, sz.y); }
+    void IncBy(int d) { IncBy(d, d); }
+
+    void DecBy(int dx, int dy) { IncBy(-dx, -dy); }
+    void DecBy(const wxSize& sz) { DecBy(sz.x, sz.y); }
+    void DecBy(int d) { DecBy(d, d); }
+
+
     void Scale(float xscale, float yscale)
         { x = (int)(x*xscale); y = (int)(y*yscale); }