Add support for gradient stops to wxGraphicsContext.

[wxWidgets.git] / src / common / dpycmn.cpp

diff --git a/src/common/dpycmn.cpp b/src/common/dpycmn.cpp
index 7425df4ef6780bd834b28dfcf8761ed37d323ed6..aa4f5e0533c08adad3081f4f5c759be97ad9ee00 100644 (file)
--- a/src/common/dpycmn.cpp
+++ b/src/common/dpycmn.cpp
@@ -1,11 +1,11 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        common/dpycmn.cpp
-// Purpose:     wxDisplayBase implementation
+// Name:        src/common/dpycmn.cpp
+// Purpose:     wxDisplay and wxDisplayImplSingle implementation
 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     01.03.03
 // RCS-ID:      $Id$
-// Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
+// Copyright:   (c) 2003-2006 Vadim Zeitlin <vadim@wxwindows.org>
 // License:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
@@ -24,7 +24,14 @@
     #pragma hdrstop
 #endif
 
+#ifndef WX_PRECOMP
+    #include "wx/gdicmn.h"
+    #include "wx/window.h"
+    #include "wx/module.h"
+#endif //WX_PRECOMP
+
 #include "wx/display.h"
+#include "wx/display_impl.h"
 
 #if wxUSE_DISPLAY
 
@@ -33,30 +40,230 @@ WX_DEFINE_OBJARRAY(wxArrayVideoModes)
 
 const wxVideoMode wxDefaultVideoMode;
 
+#endif // wxUSE_DISPLAY
+
+// ----------------------------------------------------------------------------
+// globals
+// ----------------------------------------------------------------------------
+
+// the factory object used by wxDisplay
+//
+// created on demand and destroyed by wxDisplayModule
+static wxDisplayFactory *gs_factory = NULL;
+
+// ----------------------------------------------------------------------------
+// wxDisplayImplSingle: trivial implementation working for main display only
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxDisplayImplSingle : public wxDisplayImpl
+{
+public:
+    wxDisplayImplSingle() : wxDisplayImpl(0) { }
+
+    virtual wxRect GetGeometry() const
+    {
+        wxRect r;
+        wxDisplaySize(&r.width, &r.height);
+        return r;
+    }
+
+    virtual wxRect GetClientArea() const { return wxGetClientDisplayRect(); }
+
+    virtual wxString GetName() const { return wxString(); }
+
+#if wxUSE_DISPLAY
+    // no video modes support for us, provide just the stubs
+
+    virtual wxArrayVideoModes GetModes(const wxVideoMode& WXUNUSED(mode)) const
+    {
+        return wxArrayVideoModes();
+    }
+
+    virtual wxVideoMode GetCurrentMode() const { return wxVideoMode(); }
+
+    virtual bool ChangeMode(const wxVideoMode& WXUNUSED(mode)) { return false; }
+#endif // wxUSE_DISPLAY
+
+
+    wxDECLARE_NO_COPY_CLASS(wxDisplayImplSingle);
+};
+
+// ----------------------------------------------------------------------------
+// wxDisplayModule is used to cleanup gs_factory
+// ----------------------------------------------------------------------------
+
+class wxDisplayModule : public wxModule
+{
+public:
+    virtual bool OnInit() { return true; }
+    virtual void OnExit()
+    {
+        if ( gs_factory )
+        {
+            delete gs_factory;
+            gs_factory = NULL;
+        }
+    }
+
+    DECLARE_DYNAMIC_CLASS(wxDisplayModule)
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxDisplayModule, wxModule)
+
 // ============================================================================
-// implementation
+// wxDisplay implementation
 // ============================================================================
 
-wxDisplayBase::wxDisplayBase(size_t index)
-             : m_index (index)
+// ----------------------------------------------------------------------------
+// ctor/dtor
+// ----------------------------------------------------------------------------
+
+wxDisplay::wxDisplay(unsigned n)
 {
-    wxASSERT_MSG( m_index < GetCount(),
+    wxASSERT_MSG( n < GetCount(),
                     wxT("An invalid index was passed to wxDisplay") );
+
+    m_impl = Factory().CreateDisplay(n);
+}
+
+wxDisplay::~wxDisplay()
+{
+    delete m_impl;
+}
+
+// ----------------------------------------------------------------------------
+// static functions forwarded to wxDisplayFactory
+// ----------------------------------------------------------------------------
+
+/* static */ unsigned wxDisplay::GetCount()
+{
+    return Factory().GetCount();
+}
+
+/* static */ int wxDisplay::GetFromPoint(const wxPoint& pt)
+{
+    return Factory().GetFromPoint(pt);
+}
+
+/* static */ int wxDisplay::GetFromWindow(const wxWindow *window)
+{
+    wxCHECK_MSG( window, wxNOT_FOUND, wxT("invalid window") );
+
+    return Factory().GetFromWindow(window);
+}
+
+// ----------------------------------------------------------------------------
+// functions forwarded to wxDisplayImpl
+// ----------------------------------------------------------------------------
+
+wxRect wxDisplay::GetGeometry() const
+{
+    wxCHECK_MSG( IsOk(), wxRect(), wxT("invalid wxDisplay object") );
+
+    return m_impl->GetGeometry();
+}
+
+wxRect wxDisplay::GetClientArea() const
+{
+    wxCHECK_MSG( IsOk(), wxRect(), wxT("invalid wxDisplay object") );
+
+    return m_impl->GetClientArea();
 }
 
-// MSW has its own specific implementation of this
-#ifndef __WXMSW__
+wxString wxDisplay::GetName() const
+{
+    wxCHECK_MSG( IsOk(), wxString(), wxT("invalid wxDisplay object") );
+
+    return m_impl->GetName();
+}
 
-int wxDisplayBase::GetFromWindow(wxWindow *window)
+bool wxDisplay::IsPrimary() const
 {
-    wxCHECK_MSG( window, wxNOT_FOUND, _T("NULL window") );
+    return m_impl && m_impl->GetIndex() == 0;
+}
+
+#if wxUSE_DISPLAY
 
-    // consider that the window belong to the display containing its centre
+wxArrayVideoModes wxDisplay::GetModes(const wxVideoMode& mode) const
+{
+    wxCHECK_MSG( IsOk(), wxArrayVideoModes(), wxT("invalid wxDisplay object") );
+
+    return m_impl->GetModes(mode);
+}
+
+wxVideoMode wxDisplay::GetCurrentMode() const
+{
+    wxCHECK_MSG( IsOk(), wxVideoMode(), wxT("invalid wxDisplay object") );
+
+    return m_impl->GetCurrentMode();
+}
+
+bool wxDisplay::ChangeMode(const wxVideoMode& mode)
+{
+    wxCHECK_MSG( IsOk(), false, wxT("invalid wxDisplay object") );
+
+    return m_impl->ChangeMode(mode);
+}
+
+#endif // wxUSE_DISPLAY
+
+// ----------------------------------------------------------------------------
+// static functions implementation
+// ----------------------------------------------------------------------------
+
+// if wxUSE_DISPLAY == 1 this is implemented in port-specific code
+#if !wxUSE_DISPLAY
+
+/* static */ wxDisplayFactory *wxDisplay::CreateFactory()
+{
+    return new wxDisplayFactorySingle;
+}
+
+#endif // !wxUSE_DISPLAY
+
+/* static */ wxDisplayFactory& wxDisplay::Factory()
+{
+    if ( !gs_factory )
+    {
+        gs_factory = CreateFactory();
+    }
+
+    return *gs_factory;
+}
+
+// ============================================================================
+// wxDisplayFactory implementation
+// ============================================================================
+
+int wxDisplayFactory::GetFromWindow(const wxWindow *window)
+{
+    // consider that the window belongs to the display containing its centre
     const wxRect r(window->GetRect());
     return GetFromPoint(wxPoint(r.x + r.width/2, r.y + r.height/2));
 }
 
-#endif // !__WXMSW__
+// ============================================================================
+// wxDisplayFactorySingle implementation
+// ============================================================================
 
-#endif // wxUSE_DISPLAY
+/* static */
+wxDisplayImpl *wxDisplayFactorySingle::CreateDisplay(unsigned n)
+{
+    // we recognize the main display only
+    return n != 0 ? NULL : new wxDisplayImplSingle;
+}
+
+int wxDisplayFactorySingle::GetFromPoint(const wxPoint& pt)
+{
+    if ( pt.x >= 0 && pt.y >= 0 )
+    {
+        int w, h;
+        wxDisplaySize(&w, &h);
+
+        if ( pt.x < w && pt.y < h )
+            return 0;
+    }
 
+    // the point is outside of the screen
+    return wxNOT_FOUND;
+}