added wxSize::IncTo/DecTo

[wxWidgets.git] / docs / latex / wx / dc.tex

diff --git a/docs/latex/wx/dc.tex b/docs/latex/wx/dc.tex
index 0dc9eed9a01a985174d1056aa5a13aa08ca8d6b9..ed4f54fcc9155e6c1d240a9255574ef04b738178 100644 (file)
--- a/docs/latex/wx/dc.tex
+++ b/docs/latex/wx/dc.tex
@@ -61,7 +61,7 @@ released for each drawing operation.
 
 \func{bool}{Blit}{\param{wxCoord}{ xdest}, \param{wxCoord}{ ydest}, \param{wxCoord}{ width}, \param{wxCoord}{ height},
   \param{wxDC* }{source}, \param{wxCoord}{ xsrc}, \param{wxCoord}{ ysrc}, \param{int}{ logicalFunc = wxCOPY},
 
 \func{bool}{Blit}{\param{wxCoord}{ xdest}, \param{wxCoord}{ ydest}, \param{wxCoord}{ width}, \param{wxCoord}{ height},
   \param{wxDC* }{source}, \param{wxCoord}{ xsrc}, \param{wxCoord}{ ysrc}, \param{int}{ logicalFunc = wxCOPY},

-  \param{bool }{useMask = FALSE}, \param{wxCoord}{ xsrcMask = -1}, \param{wxCoord}{ ysrcMask = -1}}
+  \param{bool }{useMask = false}, \param{wxCoord}{ xsrcMask = -1}, \param{wxCoord}{ ysrcMask = -1}}

 
 Copy from a source DC to this DC, specifying the destination
 coordinates, size of area to copy, source DC, source coordinates,
 
 Copy from a source DC to this DC, specifying the destination
 coordinates, size of area to copy, source DC, source coordinates,


@@ -85,7 +85,7 @@ logical function, whether to use a bitmap mask, and mask source position.
 
 \docparam{logicalFunc}{Logical function to use: see \helpref{wxDC::SetLogicalFunction}{wxdcsetlogicalfunction}.}
 
 
 \docparam{logicalFunc}{Logical function to use: see \helpref{wxDC::SetLogicalFunction}{wxdcsetlogicalfunction}.}
 

-\docparam{useMask}{If TRUE, Blit does a transparent blit using the mask that is associated with the bitmap
+\docparam{useMask}{If true, Blit does a transparent blit using the mask that is associated with the bitmap

 selected into the source device context. The Windows implementation does the following if MaskBlt cannot be used:
 
 \begin{enumerate}
 selected into the source device context. The Windows implementation does the following if MaskBlt cannot be used:
 
 \begin{enumerate}


@@ -133,7 +133,7 @@ See \helpref{wxMemoryDC}{wxmemorydc} for typical usage.
 
 \func{static bool}{CacheEnabled}{\void}
 
 
 \func{static bool}{CacheEnabled}{\void}
 

-On supported platforms (currently only Windows), returns TRUE
+On supported platforms (currently only Windows), returns true

 if the DC cache is enabled. The DC cache
 can speed up the \helpref{Blit}{wxdcblit} operation when
 drawing a large number of masked bitmaps.
 if the DC cache is enabled. The DC cache
 can speed up the \helpref{Blit}{wxdcblit} operation when
 drawing a large number of masked bitmaps.


@@ -243,7 +243,7 @@ The arc is drawn in an anticlockwise direction from the start point to the end p
 
 \func{void}{DrawBitmap}{\param{const wxBitmap\&}{ bitmap}, \param{wxCoord}{ x}, \param{wxCoord}{ y}, \param{bool}{ transparent}}
 
 
 \func{void}{DrawBitmap}{\param{const wxBitmap\&}{ bitmap}, \param{wxCoord}{ x}, \param{wxCoord}{ y}, \param{bool}{ transparent}}
 

-Draw a bitmap on the device context at the specified point. If {\it transparent} is TRUE and the bitmap has
+Draw a bitmap on the device context at the specified point. If {\it transparent} is true and the bitmap has

 a transparency mask, the bitmap will be drawn transparently.
 
 When drawing a mono-bitmap, the current text foreground colour will be used to draw the foreground
 a transparency mask, the bitmap will be drawn transparently.
 
 When drawing a mono-bitmap, the current text foreground colour will be used to draw the foreground


@@ -259,13 +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.
 
 
 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}}
 
 \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}
 
 
 \membersection{wxDC::DrawEllipticArc}\label{wxdcdrawellipticarc}
 


@@ -467,7 +487,7 @@ Ends a document page (only relevant when outputting to a printer).
 
 \membersection{wxDC::FloodFill}\label{wxdcfloodfill}
 
 
 \membersection{wxDC::FloodFill}\label{wxdcfloodfill}
 

-\func{void}{FloodFill}{\param{wxCoord}{ x}, \param{wxCoord}{ y}, \param{const wxColour\&}{ colour}, \param{int}{ style=wxFLOOD\_SURFACE}}
+\func{bool}{FloodFill}{\param{wxCoord}{ x}, \param{wxCoord}{ y}, \param{const wxColour\&}{ colour}, \param{int}{ style=wxFLOOD\_SURFACE}}

 
 Flood fills the device context starting from the given point, using
 the {\it current brush colour}, and using a style:
 
 Flood fills the device context starting from the given point, using
 the {\it current brush colour}, and using a style:


@@ -477,7 +497,11 @@ 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}
 
 \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.
+Returns false if the operation failed.
+
+{\it Note:} The present implementation for non-Windows platforms may fail to find
+colour borders if the pixels do not match the colour exactly. However the
+function will still return true.

 
 \membersection{wxDC::GetBackground}\label{wxdcgetbackground}
 
 
 \membersection{wxDC::GetBackground}\label{wxdcgetbackground}
 


@@ -553,7 +577,7 @@ Gets the {\it mapping mode} for the device context (see \helpref{wxDC::SetMapMod
 
 \func{bool}{GetOptimization}{\void}
 
 
 \func{bool}{GetOptimization}{\void}
 

-Returns TRUE if device context optimization is on.
+Returns true if device context optimization is on.

 See \helpref{wxDC::SetOptimization}{wxsetoptimization} for details.
 
 \membersection{wxDC::GetPen}\label{wxdcgetpen}
 See \helpref{wxDC::SetOptimization}{wxsetoptimization} for details.
 
 \membersection{wxDC::GetPen}\label{wxdcgetpen}


@@ -670,7 +694,7 @@ Gets the current text foreground colour (see \helpref{wxDC::SetTextForeground}{w
 
 Gets the current user scale factor (set by \helpref{SetUserScale}{wxdcsetuserscale}).
 
 
 Gets the current user scale factor (set by \helpref{SetUserScale}{wxdcsetuserscale}).
 

-\perlnote{In wxPerl this method takes no arguments and returna a two element
+\perlnote{In wxPerl this method takes no arguments and return a two element

  array {\tt ( x, y )}}
 
 \membersection{wxDC::LogicalToDeviceX}\label{wxdclogicaltodevicex}
  array {\tt ( x, y )}}
 
 \membersection{wxDC::LogicalToDeviceX}\label{wxdclogicaltodevicex}


@@ -731,7 +755,7 @@ Gets the minimum vertical extent used in drawing commands so far.
 
 \func{bool}{Ok}{\void}
 
 
 \func{bool}{Ok}{\void}
 

-Returns TRUE if the DC is ok to use.
+Returns true if the DC is ok to use.

 
 \membersection{wxDC::ResetBoundingBox}\label{wxdcresetboundingbox}
 
 
 \membersection{wxDC::ResetBoundingBox}\label{wxdcresetboundingbox}
 


@@ -788,11 +812,21 @@ 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{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}}
 
 \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}
 
 
 \wxheading{See also}
 


@@ -879,7 +913,7 @@ measurement used to convert logical units to device units. Note that
 in X, text drawing isn't handled consistently with the mapping mode; a
 font is always specified in point size. However, setting the {\it
 user scale} (see \helpref{wxDC::SetUserScale}{wxdcsetuserscale}) scales the text appropriately. In
 in X, text drawing isn't handled consistently with the mapping mode; a
 font is always specified in point size. However, setting the {\it
 user scale} (see \helpref{wxDC::SetUserScale}{wxdcsetuserscale}) scales the text appropriately. In

-Windows, scaleable TrueType fonts are always used; in X, results depend
+Windows, scalable TrueType fonts are always used; in X, results depend

 on availability of fonts, but usually a reasonable match is found.
 
 Note that the coordinate origin should ideally be selectable, but for
 on availability of fonts, but usually a reasonable match is found.
 
 Note that the coordinate origin should ideally be selectable, but for


@@ -904,7 +938,7 @@ The mapping mode can be one of the following:
 
 \func{void}{SetOptimization}{\param{bool }{optimize}}
 
 
 \func{void}{SetOptimization}{\param{bool }{optimize}}
 

-If {\it optimize} is TRUE (the default), this function sets optimization mode on.
+If {\it optimize} is true (the default), this function sets optimization mode on.

 This currently means that under X, the device context will not try to set a pen or brush
 property if it is known to be set already. This approach can fall down
 if non-wxWindows code is using the same device context or window, for example
 This currently means that under X, the device context will not try to set a pen or brush
 property if it is known to be set already. This approach can fall down
 if non-wxWindows code is using the same device context or window, for example


@@ -964,7 +998,7 @@ Starts a document page (only relevant when outputting to a printer).
 \section{\class{wxDCClipper}}\label{wxdcclipper}
 
 This is a small helper class which sets the specified to its constructor
 \section{\class{wxDCClipper}}\label{wxdcclipper}
 
 This is a small helper class which sets the specified to its constructor

-clipping region and then automatically destroyes it in its destructor. Using
+clipping region and then automatically destroys it in its destructor. Using

 it ensures that unwanted clipping region is not left set on the DC.
 
 \wxheading{Derived from}
 it ensures that unwanted clipping region is not left set on the DC.
 
 \wxheading{Derived from}


@@ -994,5 +1028,5 @@ specified rectangle.
 
 \func{}{\destruct{wxDCClipper}}{\void}
 
 
 \func{}{\destruct{wxDCClipper}}{\void}
 

-Destructor: destroyes the clipping region set in the constructor.
+Destructor: destroys the clipping region set in the constructor.