2006-09-06 05:40:31 -04:00
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/////////////////////////////////////////////////////////////////////////////
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// Name: wx/dfb/wrapdfb.h
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// Purpose: wx wrappers for DirectFB interfaces
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// Author: Vaclav Slavik
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// Created: 2006-08-23
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// RCS-ID: $Id$
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// Copyright: (c) 2006 REA Elektronik GmbH
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_DFB_WRAPDFB_H_
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#define _WX_DFB_WRAPDFB_H_
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#include "wx/dfb/dfbptr.h"
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2007-01-24 08:42:46 -05:00
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#include "wx/gdicmn.h"
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#include "wx/vidmode.h"
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2006-09-06 05:40:31 -04:00
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#include <directfb.h>
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wxDFB_DECLARE_INTERFACE(IDirectFB);
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wxDFB_DECLARE_INTERFACE(IDirectFBDisplayLayer);
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wxDFB_DECLARE_INTERFACE(IDirectFBFont);
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2006-09-06 05:40:31 -04:00
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wxDFB_DECLARE_INTERFACE(IDirectFBWindow);
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wxDFB_DECLARE_INTERFACE(IDirectFBSurface);
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wxDFB_DECLARE_INTERFACE(IDirectFBPalette);
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wxDFB_DECLARE_INTERFACE(IDirectFBEventBuffer);
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/**
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Checks the @a code of a DirectFB call and returns true if it was
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successful and false if it failed, logging the errors as appropriate
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(asserts for programming errors, wxLogError for runtime failures).
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*/
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bool wxDfbCheckReturn(DFBResult code);
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//-----------------------------------------------------------------------------
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// wxDfbEvent
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//-----------------------------------------------------------------------------
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/**
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The struct defined by this macro is a thin wrapper around DFB*Event type.
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It is needed because DFB*Event are typedefs and so we can't forward declare
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them, but we need to pass them to methods declared in public headers where
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<directfb.h> cannot be included. So this struct just holds the event value,
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it's sole purpose is that it can be forward declared.
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*/
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#define WXDFB_DEFINE_EVENT_WRAPPER(T) \
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struct wx##T \
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{ \
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wx##T() {} \
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wx##T(const T& event) : m_event(event) {} \
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\
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operator T&() { return m_event; } \
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operator const T&() const { return m_event; } \
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T* operator&() { return &m_event; } \
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\
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DFBEventClass GetClass() const { return m_event.clazz; } \
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\
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private: \
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T m_event; \
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};
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WXDFB_DEFINE_EVENT_WRAPPER(DFBEvent)
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WXDFB_DEFINE_EVENT_WRAPPER(DFBWindowEvent)
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//-----------------------------------------------------------------------------
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// wxDfbWrapper<T>
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//-----------------------------------------------------------------------------
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/// Base class for wxDfbWrapper<T>
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class wxDfbWrapperBase
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{
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public:
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/// Increases reference count of the object
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void AddRef()
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{
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m_refCnt++;
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}
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/// Decreases reference count and if it reaches zero, deletes the object
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void Release()
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{
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if ( --m_refCnt == 0 )
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delete this;
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}
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/// Returns result code of the last call
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DFBResult GetLastResult() const { return m_lastResult; }
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protected:
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wxDfbWrapperBase() : m_refCnt(1), m_lastResult(DFB_OK) {}
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/// Dtor may only be called from Release()
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virtual ~wxDfbWrapperBase() {}
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/**
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Checks the @a result of a DirectFB call and returns true if it was
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successful and false if it failed. Also stores result of the call
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so that it can be obtained by calling GetLastResult().
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*/
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bool Check(DFBResult result)
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{
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m_lastResult = result;
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return wxDfbCheckReturn(result);
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}
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protected:
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/// Reference count
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unsigned m_refCnt;
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/// Result of the last DirectFB call
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DFBResult m_lastResult;
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};
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/**
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This template is base class for friendly C++ wrapper around DirectFB
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interface T.
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The wrapper provides same API as DirectFB, with a few exceptions:
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- methods return true/false instead of error code
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- methods that return or create another interface return pointer to the
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interface (or NULL on failure) instead of storing it in the last
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argument
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- interface arguments use wxFooPtr type instead of raw DirectFB pointer
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- methods taking flags use int type instead of an enum when the flags
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can be or-combination of enum elements (this is workaround for
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C++-unfriendly DirectFB API)
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*/
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template<typename T>
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class wxDfbWrapper : public wxDfbWrapperBase
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{
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public:
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/// "Raw" DirectFB interface type
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typedef T DirectFBIface;
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/// Returns raw DirectFB pointer
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T *GetRaw() const { return m_ptr; }
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protected:
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/// To be called from ctor. Takes ownership of raw object.
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void Init(T *ptr) { m_ptr = ptr; }
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/// Dtor may only be used from Release
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~wxDfbWrapper()
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{
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if ( m_ptr )
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m_ptr->Release(m_ptr);
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}
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protected:
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// pointer to DirectFB object
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T *m_ptr;
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};
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//-----------------------------------------------------------------------------
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// wxIDirectFBFont
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//-----------------------------------------------------------------------------
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struct wxIDirectFBFont : public wxDfbWrapper<IDirectFBFont>
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{
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wxIDirectFBFont(IDirectFBFont *s) { Init(s); }
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bool GetStringWidth(const char *text, int bytes, int *w)
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{ return Check(m_ptr->GetStringWidth(m_ptr, text, bytes, w)); }
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bool GetStringExtents(const char *text, int bytes,
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DFBRectangle *logicalRect, DFBRectangle *inkRect)
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{
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return Check(m_ptr->GetStringExtents(m_ptr, text, bytes,
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logicalRect, inkRect));
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}
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bool GetHeight(int *h)
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{ return Check(m_ptr->GetHeight(m_ptr, h)); }
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bool GetDescender(int *descender)
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{ return Check(m_ptr->GetDescender(m_ptr, descender)); }
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};
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//-----------------------------------------------------------------------------
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// wxIDirectFBPalette
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//-----------------------------------------------------------------------------
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struct wxIDirectFBPalette : public wxDfbWrapper<IDirectFBPalette>
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{
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wxIDirectFBPalette(IDirectFBPalette *s) { Init(s); }
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};
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//-----------------------------------------------------------------------------
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// wxIDirectFBSurface
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//-----------------------------------------------------------------------------
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struct wxIDirectFBSurface : public wxDfbWrapper<IDirectFBSurface>
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{
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wxIDirectFBSurface(IDirectFBSurface *s) { Init(s); }
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bool GetSize(int *w, int *h)
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{ return Check(m_ptr->GetSize(m_ptr, w, h)); }
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bool GetCapabilities(DFBSurfaceCapabilities *caps)
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{ return Check(m_ptr->GetCapabilities(m_ptr, caps)); }
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bool GetPixelFormat(DFBSurfacePixelFormat *caps)
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{ return Check(m_ptr->GetPixelFormat(m_ptr, caps)); }
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2007-04-03 04:46:53 -04:00
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// convenience version of GetPixelFormat, returns DSPF_UNKNOWN if fails
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DFBSurfacePixelFormat GetPixelFormat();
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bool SetClip(const DFBRegion *clip)
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{ return Check(m_ptr->SetClip(m_ptr, clip)); }
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bool SetColor(__u8 r, __u8 g, __u8 b, __u8 a)
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{ return Check(m_ptr->SetColor(m_ptr, r, g, b, a)); }
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bool Clear(__u8 r, __u8 g, __u8 b, __u8 a)
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{ return Check(m_ptr->Clear(m_ptr, r, g, b, a)); }
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bool DrawLine(int x1, int y1, int x2, int y2)
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{ return Check(m_ptr->DrawLine(m_ptr, x1, y1, x2, y2)); }
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bool DrawRectangle(int x, int y, int w, int h)
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{ return Check(m_ptr->DrawRectangle(m_ptr, x, y, w, h)); }
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bool FillRectangle(int x, int y, int w, int h)
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{ return Check(m_ptr->FillRectangle(m_ptr, x, y, w, h)); }
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bool SetFont(const wxIDirectFBFontPtr& font)
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{ return Check(m_ptr->SetFont(m_ptr, font->GetRaw())); }
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bool DrawString(const char *text, int bytes, int x, int y, int flags)
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{
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return Check(m_ptr->DrawString(m_ptr, text, bytes, x, y,
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(DFBSurfaceTextFlags)flags));
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}
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2006-09-13 05:50:02 -04:00
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/**
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Updates the front buffer from the back buffer. If @a region is not
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NULL, only given rectangle is updated.
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*/
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bool FlipToFront(const DFBRegion *region = NULL);
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wxIDirectFBSurfacePtr GetSubSurface(const DFBRectangle *rect)
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{
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IDirectFBSurface *s;
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if ( Check(m_ptr->GetSubSurface(m_ptr, rect, &s)) )
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return new wxIDirectFBSurface(s);
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else
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return NULL;
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}
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wxIDirectFBPalettePtr GetPalette()
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{
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IDirectFBPalette *s;
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if ( Check(m_ptr->GetPalette(m_ptr, &s)) )
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return new wxIDirectFBPalette(s);
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else
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return NULL;
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}
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bool SetPalette(const wxIDirectFBPalettePtr& pal)
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{ return Check(m_ptr->SetPalette(m_ptr, pal->GetRaw())); }
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bool SetBlittingFlags(int flags)
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{
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return Check(
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m_ptr->SetBlittingFlags(m_ptr, (DFBSurfaceBlittingFlags)flags));
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}
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bool Blit(const wxIDirectFBSurfacePtr& source,
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const DFBRectangle *source_rect,
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int x, int y)
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{ return Blit(source->GetRaw(), source_rect, x, y); }
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bool Blit(IDirectFBSurface *source,
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const DFBRectangle *source_rect,
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int x, int y)
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{ return Check(m_ptr->Blit(m_ptr, source, source_rect, x, y)); }
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2006-09-18 07:20:58 -04:00
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bool StretchBlit(const wxIDirectFBSurfacePtr& source,
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const DFBRectangle *source_rect,
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const DFBRectangle *dest_rect)
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{
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return Check(m_ptr->StretchBlit(m_ptr, source->GetRaw(),
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source_rect, dest_rect));
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}
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2006-09-11 05:08:57 -04:00
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/// Returns bit depth used by the surface or -1 on error
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int GetDepth();
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/**
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Creates a new surface by cloning this one. New surface will have same
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capabilities, pixel format and pixel data as the existing one.
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@see CreateCompatible
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*/
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wxIDirectFBSurfacePtr Clone();
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2006-09-25 04:01:36 -04:00
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/// Flags for CreateCompatible()
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enum CreateCompatibleFlags
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{
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/// Don't create double-buffered surface
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CreateCompatible_NoBackBuffer = 1
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};
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2006-09-11 05:08:57 -04:00
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/**
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Creates a surface compatible with this one, i.e. surface with the same
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capabilities and pixel format, but with different and size.
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2006-09-25 04:01:36 -04:00
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@param size Size of the surface to create. If wxDefaultSize, use the
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size of this surface.
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@param flags Or-combination of CreateCompatibleFlags values
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2006-09-11 05:08:57 -04:00
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*/
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2006-09-25 04:01:36 -04:00
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wxIDirectFBSurfacePtr CreateCompatible(const wxSize& size = wxDefaultSize,
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int flags = 0);
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2006-09-13 05:50:02 -04:00
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2007-04-03 04:46:53 -04:00
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bool Lock(DFBSurfaceLockFlags flags, void **ret_ptr, int *ret_pitch)
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{ return Check(m_ptr->Lock(m_ptr, flags, ret_ptr, ret_pitch)); }
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bool Unlock()
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{ return Check(m_ptr->Unlock(m_ptr)); }
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/// Helper struct for safe locking & unlocking of surfaces
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struct Locked
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{
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Locked(const wxIDirectFBSurfacePtr& surface, DFBSurfaceLockFlags flags)
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: m_surface(surface)
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{
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if ( !surface->Lock(flags, &ptr, &pitch) )
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ptr = NULL;
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}
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~Locked()
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{
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if ( ptr )
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m_surface->Unlock();
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}
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void *ptr;
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int pitch;
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private:
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wxIDirectFBSurfacePtr m_surface;
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};
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2006-09-13 05:50:02 -04:00
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private:
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// this is private because we want user code to use FlipToFront()
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bool Flip(const DFBRegion *region, int flags);
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2006-09-06 05:40:31 -04:00
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};
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//-----------------------------------------------------------------------------
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// wxIDirectFBEventBuffer
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//-----------------------------------------------------------------------------
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struct wxIDirectFBEventBuffer : public wxDfbWrapper<IDirectFBEventBuffer>
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{
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wxIDirectFBEventBuffer(IDirectFBEventBuffer *s) { Init(s); }
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bool WakeUp()
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{
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return Check(m_ptr->WakeUp(m_ptr));
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}
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bool HasEvent()
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{
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// returns DFB_OK if there is >=1 event, DFB_BUFFEREMPTY otherwise
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DFBResult r = m_ptr->HasEvent(m_ptr);
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// NB: Check() also returns true for DFB_BUFFEREMPTY, so we can't just
|
|
|
|
// return it's return value:
|
|
|
|
Check(r);
|
|
|
|
return (r == DFB_OK);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool WaitForEventWithTimeout(unsigned secs, unsigned millisecs)
|
|
|
|
{
|
2006-09-07 06:43:59 -04:00
|
|
|
DFBResult r = m_ptr->WaitForEventWithTimeout(m_ptr, secs, millisecs);
|
|
|
|
|
|
|
|
// DFB_TIMEOUT is not an error in this function:
|
|
|
|
if ( r == DFB_TIMEOUT )
|
|
|
|
{
|
|
|
|
m_lastResult = DFB_TIMEOUT;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
return Check(r);
|
2006-09-06 05:40:31 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
bool GetEvent(wxDFBEvent& event)
|
|
|
|
{
|
|
|
|
return Check(m_ptr->GetEvent(m_ptr, &event));
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// wxIDirectFBWindow
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
struct wxIDirectFBWindow : public wxDfbWrapper<IDirectFBWindow>
|
|
|
|
{
|
|
|
|
wxIDirectFBWindow(IDirectFBWindow *s) { Init(s); }
|
|
|
|
|
|
|
|
bool GetID(DFBWindowID *id)
|
|
|
|
{ return Check(m_ptr->GetID(m_ptr, id)); }
|
|
|
|
|
|
|
|
bool GetPosition(int *x, int *y)
|
|
|
|
{ return Check(m_ptr->GetPosition(m_ptr, x, y)); }
|
|
|
|
|
|
|
|
bool GetSize(int *w, int *h)
|
|
|
|
{ return Check(m_ptr->GetSize(m_ptr, w, h)); }
|
|
|
|
|
|
|
|
bool MoveTo(int x, int y)
|
|
|
|
{ return Check(m_ptr->MoveTo(m_ptr, x, y)); }
|
|
|
|
|
|
|
|
bool Resize(int w, int h)
|
|
|
|
{ return Check(m_ptr->Resize(m_ptr, w, h)); }
|
|
|
|
|
|
|
|
bool SetOpacity(__u8 opacity)
|
|
|
|
{ return Check(m_ptr->SetOpacity(m_ptr, opacity)); }
|
|
|
|
|
|
|
|
bool SetStackingClass(DFBWindowStackingClass klass)
|
|
|
|
{ return Check(m_ptr->SetStackingClass(m_ptr, klass)); }
|
|
|
|
|
|
|
|
wxIDirectFBSurfacePtr GetSurface()
|
|
|
|
{
|
|
|
|
IDirectFBSurface *s;
|
|
|
|
if ( Check(m_ptr->GetSurface(m_ptr, &s)) )
|
|
|
|
return new wxIDirectFBSurface(s);
|
|
|
|
else
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool AttachEventBuffer(const wxIDirectFBEventBufferPtr& buffer)
|
|
|
|
{ return Check(m_ptr->AttachEventBuffer(m_ptr, buffer->GetRaw())); }
|
|
|
|
|
|
|
|
bool RequestFocus()
|
|
|
|
{ return Check(m_ptr->RequestFocus(m_ptr)); }
|
2006-12-01 08:02:20 -05:00
|
|
|
|
|
|
|
bool Destroy()
|
|
|
|
{ return Check(m_ptr->Destroy(m_ptr)); }
|
2006-09-06 05:40:31 -04:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// wxIDirectFBDisplayLayer
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
struct wxIDirectFBDisplayLayer : public wxDfbWrapper<IDirectFBDisplayLayer>
|
|
|
|
{
|
|
|
|
wxIDirectFBDisplayLayer(IDirectFBDisplayLayer *s) { Init(s); }
|
|
|
|
|
|
|
|
wxIDirectFBWindowPtr CreateWindow(const DFBWindowDescription *desc)
|
|
|
|
{
|
|
|
|
IDirectFBWindow *w;
|
|
|
|
if ( Check(m_ptr->CreateWindow(m_ptr, desc, &w)) )
|
|
|
|
return new wxIDirectFBWindow(w);
|
|
|
|
else
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2006-11-18 08:17:35 -05:00
|
|
|
bool GetConfiguration(DFBDisplayLayerConfig *config)
|
|
|
|
{ return Check(m_ptr->GetConfiguration(m_ptr, config)); }
|
|
|
|
|
|
|
|
wxVideoMode GetVideoMode();
|
2006-09-06 05:40:31 -04:00
|
|
|
|
|
|
|
bool GetCursorPosition(int *x, int *y)
|
|
|
|
{ return Check(m_ptr->GetCursorPosition(m_ptr, x, y)); }
|
|
|
|
|
|
|
|
bool WarpCursor(int x, int y)
|
|
|
|
{ return Check(m_ptr->WarpCursor(m_ptr, x, y)); }
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// wxIDirectFB
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
struct wxIDirectFB : public wxDfbWrapper<IDirectFB>
|
|
|
|
{
|
|
|
|
/**
|
|
|
|
Returns pointer to DirectFB singleton object, it never returns NULL
|
|
|
|
after wxApp was initialized. The object is cached, so calling this
|
|
|
|
method is cheap.
|
|
|
|
*/
|
|
|
|
static wxIDirectFBPtr Get()
|
|
|
|
{
|
|
|
|
if ( !ms_ptr ) CreateDirectFB();
|
|
|
|
return ms_ptr;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool SetVideoMode(int w, int h, int bpp)
|
|
|
|
{ return Check(m_ptr->SetVideoMode(m_ptr, w, h, bpp)); }
|
|
|
|
|
|
|
|
wxIDirectFBSurfacePtr CreateSurface(const DFBSurfaceDescription *desc)
|
|
|
|
{
|
|
|
|
IDirectFBSurface *s;
|
|
|
|
if ( Check(m_ptr->CreateSurface(m_ptr, desc, &s)) )
|
|
|
|
return new wxIDirectFBSurface(s);
|
|
|
|
else
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
wxIDirectFBEventBufferPtr CreateEventBuffer()
|
|
|
|
{
|
|
|
|
IDirectFBEventBuffer *b;
|
|
|
|
if ( Check(m_ptr->CreateEventBuffer(m_ptr, &b)) )
|
|
|
|
return new wxIDirectFBEventBuffer(b);
|
|
|
|
else
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
wxIDirectFBFontPtr CreateFont(const char *filename,
|
|
|
|
const DFBFontDescription *desc)
|
|
|
|
{
|
|
|
|
IDirectFBFont *f;
|
|
|
|
if ( Check(m_ptr->CreateFont(m_ptr, filename, desc, &f)) )
|
|
|
|
return new wxIDirectFBFont(f);
|
|
|
|
else
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2006-09-11 05:08:57 -04:00
|
|
|
wxIDirectFBDisplayLayerPtr
|
|
|
|
GetDisplayLayer(DFBDisplayLayerID id = DLID_PRIMARY)
|
2006-09-06 05:40:31 -04:00
|
|
|
{
|
|
|
|
IDirectFBDisplayLayer *l;
|
|
|
|
if ( Check(m_ptr->GetDisplayLayer(m_ptr, id, &l)) )
|
|
|
|
return new wxIDirectFBDisplayLayer(l);
|
|
|
|
else
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2006-09-11 05:08:57 -04:00
|
|
|
/// Returns primary surface
|
|
|
|
wxIDirectFBSurfacePtr GetPrimarySurface();
|
|
|
|
|
2006-09-06 05:40:31 -04:00
|
|
|
private:
|
|
|
|
wxIDirectFB(IDirectFB *ptr) { Init(ptr); }
|
|
|
|
|
|
|
|
// creates ms_ptr instance
|
|
|
|
static void CreateDirectFB();
|
|
|
|
|
|
|
|
static void CleanUp();
|
|
|
|
friend class wxApp; // calls CleanUp
|
|
|
|
|
|
|
|
// pointer to the singleton IDirectFB object
|
|
|
|
static wxIDirectFBPtr ms_ptr;
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif // _WX_DFB_WRAPDFB_H_
|