initial (not yet working) code for DirectFB port

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40865 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/dfb/utils.cpp

@@ -0,0 +1,200 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        src/dfb/utils.cpp
+// Purpose:     Miscellaneous utility functions and classes
+// Author:      Vaclav Slavik
+// Created:     2006-08-08
+// RCS-ID:      $Id$
+// Copyright:   (c) 2006 REA Elektronik GmbH
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#include "wx/utils.h"
+#include "wx/apptrait.h"
+#include "wx/unix/execute.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+#endif
+
+#include "wx/dfb/private.h"
+#include <directfb_version.h>
+
+// ----------------------------------------------------------------------------
+// toolkit info
+// ----------------------------------------------------------------------------
+
+wxPortId wxGUIAppTraits::GetToolkitVersion(int *verMaj, int *verMin) const
+{
+    if ( verMaj ) *verMaj = DIRECTFB_MAJOR_VERSION;
+    if ( verMin ) *verMaj = DIRECTFB_MINOR_VERSION;
+
+    return wxPORT_DFB;
+}
+
+// ----------------------------------------------------------------------------
+// display characteristics
+// ----------------------------------------------------------------------------
+
+bool wxColourDisplay()
+{
+    #warning "FIXME: wxColourDisplay"
+    return true;
+}
+
+int wxDisplayDepth()
+{
+    return wxTheApp->GetDisplayMode().bpp;
+}
+
+void wxDisplaySize(int *width, int *height)
+{
+    wxVideoMode mode(wxTheApp->GetDisplayMode());
+    if ( width ) *width = mode.w;
+    if ( height ) *height = mode.h;
+}
+
+void wxDisplaySizeMM(int *width, int *height)
+{
+    // FIXME: there's no way to get physical resolution using the DirectDB
+    //        API, we hardcode a commonly used value of 72dpi
+    #define DPI          72.0
+    #define PX_TO_MM(x)  (int(((x) / DPI) * inches2mm))
+
+    wxDisplaySize(width, height);
+    if ( width ) *width = PX_TO_MM(*width);
+    if ( height ) *height = PX_TO_MM(*height);
+
+    #undef DPI
+    #undef PX_TO_MM
+}
+
+void wxClientDisplayRect(int *x, int *y, int *width, int *height)
+{
+    // return desktop dimensions minus any panels, menus, trays:
+    if (x) *x = 0;
+    if (y) *y = 0;
+    wxDisplaySize(width, height);
+}
+
+//-----------------------------------------------------------------------------
+// surface manipulation helpers
+//-----------------------------------------------------------------------------
+
+IDirectFBSurfacePtr wxDfbCloneSurface(const IDirectFBSurfacePtr& s,
+                                      wxDfbCloneSurfaceMode mode)
+{
+    if ( !s )
+        return NULL;
+
+    DFBSurfaceDescription desc;
+    desc.flags = (DFBSurfaceDescriptionFlags)(
+            DSDESC_CAPS | DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT);
+    s->GetCapabilities(s, &desc.caps);
+    s->GetSize(s, &desc.width, &desc.height);
+    s->GetPixelFormat(s, &desc.pixelformat);
+
+    IDirectFBPtr dfb(wxTheApp->GetDirectFBInterface());
+
+    IDirectFBSurfacePtr snew;
+    if ( !DFB_CALL( dfb->CreateSurface(dfb, &desc, &snew) ) )
+        return NULL;
+
+    IDirectFBPalettePtr pal;
+    if ( s->GetPalette(s, &pal) == DFB_OK )
+    {
+        if ( !DFB_CALL( snew->SetPalette(snew, pal) ) )
+            return NULL;
+    }
+
+    if ( mode == wxDfbCloneSurface_CopyPixels )
+    {
+        if ( !DFB_CALL( snew->SetBlittingFlags(snew, DSBLIT_NOFX) ) )
+            return NULL;
+        if ( !DFB_CALL( snew->Blit(snew, s, NULL, 0, 0) ) )
+            return NULL;
+    }
+
+    return snew;
+}
+
+int wxDfbGetSurfaceDepth(const IDirectFBSurfacePtr& s)
+{
+    wxCHECK_MSG( s, -1, _T("invalid surface") );
+
+    DFBSurfacePixelFormat format = DSPF_UNKNOWN;
+
+    if ( !DFB_CALL( s->GetPixelFormat(s, &format) ) )
+        return -1;
+
+    return DFB_BITS_PER_PIXEL(format);
+}
+
+IDirectFBDisplayLayerPtr wxDfbGetDisplayLayer()
+{
+    IDirectFBPtr dfb(wxTheApp->GetDirectFBInterface());
+
+    IDirectFBDisplayLayerPtr layer;
+    if ( !DFB_CALL( dfb->GetDisplayLayer(dfb, DLID_PRIMARY, &layer) ) )
+        return NULL;
+
+    return layer;
+}
+
+IDirectFBSurfacePtr wxDfbGetPrimarySurface()
+{
+    IDirectFBDisplayLayerPtr layer(wxDfbGetDisplayLayer());
+    IDirectFBSurfacePtr surface;
+    DFB_CALL( layer->GetSurface(layer, &surface) );
+    return surface;
+}
+
+
+//-----------------------------------------------------------------------------
+// mouse
+//-----------------------------------------------------------------------------
+
+void wxGetMousePosition(int *x, int *y)
+{
+    IDirectFBDisplayLayerPtr layer(wxDfbGetDisplayLayer());
+    DFB_CALL( layer->GetCursorPosition(layer, x, y) );
+}
+
+wxPoint wxGetMousePosition()
+{
+    wxPoint pt;
+    wxGetMousePosition(&pt.x, &pt.y);
+    return pt;
+}
+
+//-----------------------------------------------------------------------------
+// keyboard
+//-----------------------------------------------------------------------------
+
+bool wxGetKeyState(wxKeyCode key)
+{
+    wxASSERT_MSG(key != WXK_LBUTTON && key != WXK_RBUTTON && key != WXK_MBUTTON,
+                 _T("can't use wxGetKeyState() for mouse buttons"));
+
+    return false; // FIXME
+}
+
+//----------------------------------------------------------------------------
+// misc.
+//----------------------------------------------------------------------------
+
+void wxBell()
+{
+}
+
+int wxAddProcessCallback(wxEndProcessData *proc_data, int fd)
+{
+    wxFAIL_MSG( _T("wxAddProcessCallback not implemented") );
+    return 0;
+}