X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8de3594cdd735fc5d58a657a4d0c9005fd54c5de..0a012f770ef1eb5212661c9b6fcb7d8f7242f73f:/wxPython/src/_dc.i diff --git a/wxPython/src/_dc.i b/wxPython/src/_dc.i index 18a8690ab9..7d1f08cf86 100644 --- a/wxPython/src/_dc.i +++ b/wxPython/src/_dc.i @@ -1247,7 +1247,7 @@ be used for anything. Typical usage is as follows:: dc = wx.MemoryDC() dc.SelectObject(bitmap) - # draw on the dc usign any of the Draw methods + # draw on the dc using any of the Draw methods dc.SelectObject(wx.NullBitmap) # the bitmap now contains wahtever was drawn upon it @@ -1258,12 +1258,13 @@ of it) before a bitmap can be reselected into another memory DC. class wxMemoryDC : public wxDC { public: DocCtorStr( - wxMemoryDC(), + wxMemoryDC(const wxBitmap& bitmap = wxNullBitmap), "Constructs a new memory device context. Use the Ok member to test whether the constructor was successful in -creating a usable device context. Don't forget to select a bitmap into -the DC before drawing on it.", " +creating a usable device context. If a bitmap is not given to this +constructor then don't forget to select a bitmap into the DC before +drawing on it.", " :see: `MemoryDCFromDC`"); @@ -1287,6 +1288,124 @@ destroyed safely.", ""); }; +//--------------------------------------------------------------------------- +%newgroup + +MustHaveApp(wxScreenDC); + +DocStr(wxScreenDC, +"A wxScreenDC can be used to paint anywhere on the screen. This should +normally be constructed as a temporary stack object; don't store a +wxScreenDC object. +", ""); +class wxScreenDC : public wxDC { +public: + wxScreenDC(); + + DocDeclStrName( + bool , StartDrawingOnTop(wxWindow* window), + "Specify that the area of the screen to be drawn upon coincides with +the given window. + +:see: `EndDrawingOnTop`", "", + StartDrawingOnTopWin); + + + DocDeclStr( + bool , StartDrawingOnTop(wxRect* rect = NULL), + "Specify that the area is the given rectangle, or the whole screen if +``None`` is passed. + +:see: `EndDrawingOnTop`", ""); + + + DocDeclStr( + bool , EndDrawingOnTop(), + "Use this in conjunction with `StartDrawingOnTop` or +`StartDrawingOnTopWin` to ensure that drawing to the screen occurs on +top of existing windows. Without this, some window systems (such as X) +only allow drawing to take place underneath other windows. + +You might use this pair of functions when implementing a drag feature, +for example as in the `wx.SplitterWindow` implementation. + +These functions are probably obsolete since the X implementations +allow drawing directly on the screen now. However, the fact that this +function allows the screen to be refreshed afterwards may be useful +to some applications.", ""); + +}; + +//--------------------------------------------------------------------------- +%newgroup + +MustHaveApp(wxWindowDC); + +DocStr(wxWindowDC, + "A wx.WindowDC must be constructed if an application wishes to paint on +the whole area of a window (client and decorations). This should +normally be constructed as a temporary stack object; don't store a +wx.WindowDC object.",""); +class wxWindowDC : public wxDC { +public: + DocCtorStr( + wxWindowDC(wxWindow* win), + "Constructor. Pass the window on which you wish to paint.",""); +}; + +//--------------------------------------------------------------------------- +%newgroup + +MustHaveApp(wxClientDC); + +DocStr(wxClientDC, +"A wx.ClientDC must be constructed if an application wishes to paint on +the client area of a window from outside an EVT_PAINT event. This should +normally be constructed as a temporary stack object; don't store a +wx.ClientDC object long term. + +To draw on a window from within an EVT_PAINT handler, construct a +`wx.PaintDC` object. + +To draw on the whole window including decorations, construct a +`wx.WindowDC` object (Windows only). +", ""); +class wxClientDC : public wxWindowDC { +public: + DocCtorStr( + wxClientDC(wxWindow* win), + "Constructor. Pass the window on which you wish to paint.", ""); +}; + +//--------------------------------------------------------------------------- +%newgroup + +MustHaveApp(wxPaintDC); + +DocStr(wxPaintDC, +"A wx.PaintDC must be constructed if an application wishes to paint on +the client area of a window from within an EVT_PAINT event +handler. This should normally be constructed as a temporary stack +object; don't store a wx.PaintDC object. If you have an EVT_PAINT +handler, you **must** create a wx.PaintDC object within it even if you +don't actually use it. + +Using wx.PaintDC within EVT_PAINT handlers is important because it +automatically sets the clipping area to the damaged area of the +window. Attempts to draw outside this area do not appear. + +To draw on a window from outside EVT_PAINT handlers, construct a +`wx.ClientDC` object. +",""); +class wxPaintDC : public wxClientDC { +public: + DocCtorStr( + wxPaintDC(wxWindow* win), + "Constructor. Pass the window on which you wish to paint.", ""); +}; + + + //--------------------------------------------------------------------------- %newgroup @@ -1306,19 +1425,29 @@ DocStr(wxBufferedDC, "This simple class provides a simple way to avoid flicker: when drawing on it, everything is in fact first drawn on an in-memory buffer (a `wx.Bitmap`) and then copied to the screen only once, when this object -is destroyed. +is destroyed. You can either provide a buffer bitmap yourself, and +reuse it the next time something needs painted, or you can let the +buffered DC create and provide a buffer bitmap itself. -It can be used in the same way as any other device context. +Buffered DCs can be used in the same way as any other device context. wx.BufferedDC itself typically replaces `wx.ClientDC`, if you want to use it in your EVT_PAINT handler, you should look at -`wx.BufferedPaintDC`. +`wx.BufferedPaintDC`. You can also use a wx.BufferedDC without +providing a target DC. In this case the operations done on the dc +will only be written to the buffer bitmap and *not* to any window, so +you will want to have provided the buffer bitmap and then reuse it +when it needs painted to the window. Please note that GTK+ 2.0 and OS X provide double buffering themselves -natively. wxBufferedDC is aware of this however, and will bypass the buffering -unless an explicit buffer bitmap is given. +natively. You may want to use `wx.Window.IsDoubleBuffered` to +determine whether you need to use buffering or not, or use +`wx.AutoBufferedPaintDC` to avoid needless double buffering on systems +that already do it automatically. + + ", ""); -class wxBufferedDC : public wxDC +class wxBufferedDC : public wxMemoryDC { public: %pythonAppend wxBufferedDC @@ -1358,10 +1487,10 @@ public: wxBufferedDC( wxDC* dc, const wxSize& area, int style = wxBUFFER_CLIENT_AREA ); - wxBufferedDC(wxWindow* win, - wxDC *dc, - const wxSize &area, - int style = wxBUFFER_CLIENT_AREA); +// wxBufferedDC(wxWindow* win, +// wxDC *dc, +// const wxSize &area, +// int style = wxBUFFER_CLIENT_AREA); DocCtorStr( @@ -1421,138 +1550,49 @@ window is automatically used).", ""); //--------------------------------------------------------------------------- %newgroup -MustHaveApp(wxScreenDC); - -DocStr(wxScreenDC, -"A wxScreenDC can be used to paint anywhere on the screen. This should -normally be constructed as a temporary stack object; don't store a -wxScreenDC object. -", ""); -class wxScreenDC : public wxDC { -public: - wxScreenDC(); - - DocDeclStrName( - bool , StartDrawingOnTop(wxWindow* window), - "Specify that the area of the screen to be drawn upon coincides with -the given window. - -:see: `EndDrawingOnTop`", "", - StartDrawingOnTopWin); - - - DocDeclStr( - bool , StartDrawingOnTop(wxRect* rect = NULL), - "Specify that the area is the given rectangle, or the whole screen if -``None`` is passed. - -:see: `EndDrawingOnTop`", ""); - - - DocDeclStr( - bool , EndDrawingOnTop(), - "Use this in conjunction with `StartDrawingOnTop` or -`StartDrawingOnTopWin` to ensure that drawing to the screen occurs on -top of existing windows. Without this, some window systems (such as X) -only allow drawing to take place underneath other windows. - -You might use this pair of functions when implementing a drag feature, -for example as in the `wx.SplitterWindow` implementation. - -These functions are probably obsolete since the X implementations -allow drawing directly on the screen now. However, the fact that this -function allows the screen to be refreshed afterwards may be useful -to some applications.", ""); - -}; - -//--------------------------------------------------------------------------- -%newgroup - -MustHaveApp(wxWindowDC); - -DocStr(wxWindowDC, - "A wx.WindowDC must be constructed if an application wishes to paint on -the whole area of a window (client and decorations). This should -normally be constructed as a temporary stack object; don't store a -wx.WindowDC object.",""); -class wxWindowDC : public wxDC { -public: - DocCtorStr( - wxWindowDC(wxWindow* win), - "Constructor. Pass the window on which you wish to paint.",""); -}; - -//--------------------------------------------------------------------------- -%newgroup +// Epydoc doesn't like this for some strange reason... +// %pythoncode { +// if 'wxMac' in wx.PlatformInfo or 'gtk2' in wx.PlatformInfo: +// _AutoBufferedPaintDCBase = PaintDC +// else: +// _AutoBufferedPaintDCBase = BufferedPaintDC + +// class AutoBufferedPaintDC(_AutoBufferedPaintDCBase): +// """ +// If the current platform double buffers by default then this DC is the +// same as a plain `wx.PaintDC`, otherwise it is a `wx.BufferedPaintDC`. -MustHaveApp(wxClientDC); +// :see: `wx.AutoBufferedPaintDCFactory` +// """ +// def __init__(self, window): +// _AutoBufferedPaintDCBase.__init__(self, window) +// } -DocStr(wxClientDC, -"A wx.ClientDC must be constructed if an application wishes to paint on -the client area of a window from outside an EVT_PAINT event. This should -normally be constructed as a temporary stack object; don't store a -wx.ClientDC object long term. -To draw on a window from within an EVT_PAINT handler, construct a -`wx.PaintDC` object. +DocStr(wxAutoBufferedPaintDC, +"If the current platform double buffers by default then this DC is the +same as a plain `wx.PaintDC`, otherwise it is a `wx.BufferedPaintDC`. -To draw on the whole window including decorations, construct a -`wx.WindowDC` object (Windows only). +:see: `wx.AutoBufferedPaintDCFactory` ", ""); -class wxClientDC : public wxWindowDC { -public: - DocCtorStr( - wxClientDC(wxWindow* win), - "Constructor. Pass the window on which you wish to paint.", ""); -}; - -//--------------------------------------------------------------------------- -%newgroup - -MustHaveApp(wxPaintDC); - -DocStr(wxPaintDC, -"A wx.PaintDC must be constructed if an application wishes to paint on -the client area of a window from within an EVT_PAINT event -handler. This should normally be constructed as a temporary stack -object; don't store a wx.PaintDC object. If you have an EVT_PAINT -handler, you **must** create a wx.PaintDC object within it even if you -don't actually use it. - -Using wx.PaintDC within EVT_PAINT handlers is important because it -automatically sets the clipping area to the damaged area of the -window. Attempts to draw outside this area do not appear. -To draw on a window from outside EVT_PAINT handlers, construct a -`wx.ClientDC` object. -",""); -class wxPaintDC : public wxClientDC { +class wxAutoBufferedPaintDC: public wxDC +{ public: - DocCtorStr( - wxPaintDC(wxWindow* win), - "Constructor. Pass the window on which you wish to paint.", ""); + wxAutoBufferedPaintDC(wxWindow* win); }; +%newobject wxAutoBufferedPaintDCFactory; +DocDeclStr( + wxDC* , wxAutoBufferedPaintDCFactory(wxWindow* window), + "Checks if the window is natively double buffered and will return a +`wx.PaintDC` if it is, a `wx.BufferedPaintDC` otherwise. The advantage of +this function over `wx.AutoBufferedPaintDC` is that this function will check +if the the specified window has double-buffering enabled rather than just +going by platform defaults.", ""); -//--------------------------------------------------------------------------- -%newgroup -%pythoncode { - if 'wxMac' in wx.PlatformInfo or 'gtk2' in wx.PlatformInfo: - _AutoBufferedPaintDCBase = PaintDC - else: - _AutoBufferedPaintDCBase = BufferedPaintDC - - class AutoBufferedPaintDC(_AutoBufferedPaintDCBase): - """ - If the current platform double buffers by default then this DC is the - same as a plain `wx.PaintDC`, otherwise it is a `wx.BufferedPaintDC`. - """ - def __init__(self, window): - _AutoBufferedPaintDCBase.__init__(self, window) -} //--------------------------------------------------------------------------- %newgroup