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Fix wxBufferedDC so that it adheres to its documented behavior (which is in use in wxPython at least) and make a note about the layout direction assignment.

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42408 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Kevin Ollivier
2006-10-25 20:00:48 +00:00
parent 974a12f86a
commit 64e4759f43
2 changed files with 6 additions and 2 deletions
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4
docs/latex/wx/bufferdc.tex
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@@ -25,6 +25,10 @@ Please note that GTK+ 2.0 as well as OS X provide double buffering themselves
+natively. Use \helpref{wxWindow::IsDoubleBuffered}{wxwindowisdoublebuffered} to +natively. Use \helpref{wxWindow::IsDoubleBuffered}{wxwindowisdoublebuffered} to
+determine whether you need to use buffering or not. +determine whether you need to use buffering or not.
\wxheading{Localization Support}
If you pass in a valid DC, wxBufferedDC will inherit its layout direction.
\wxheading{Derived from} \wxheading{Derived from}
\helpref{wxMemoryDC}{wxmemorydc}\\ \helpref{wxMemoryDC}{wxmemorydc}\\

4
include/wx/dcbuffer.h
View File

@@ -122,13 +122,13 @@ private:
void InitCommon(wxDC *dc, int style) void InitCommon(wxDC *dc, int style)
{ {
wxASSERT_MSG( !m_dc, _T("wxBufferedDC already initialised") ); wxASSERT_MSG( !m_dc, _T("wxBufferedDC already initialised") );
wxCHECK_RET( dc, _T("can't associate NULL DC with wxBufferedDC") );
m_dc = dc; m_dc = dc;
m_style = style; m_style = style;
// inherit the same layout direction as the original DC // inherit the same layout direction as the original DC
SetLayoutDirection(dc->GetLayoutDirection()); if (dc && dc->IsOk())
SetLayoutDirection(dc->GetLayoutDirection());
} }
// check that the bitmap is valid and use it // check that the bitmap is valid and use it