renaming

[wxWidgets.git] / src / osx / carbon / overlay.cpp

diff --git a/src/osx/carbon/overlay.cpp b/src/osx/carbon/overlay.cpp
new file mode 100644 (file)
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+++ b/src/osx/carbon/overlay.cpp
@@ -0,0 +1,185 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        src/mac/carbon/overlay.cpp
+// Purpose:     common wxOverlay code
+// Author:      Stefan Csomor
+// Modified by:
+// Created:     2006-10-20
+// RCS-ID:      $Id$
+// Copyright:   (c) wxWidgets team
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#include "wx/overlay.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/dcclient.h"
+#endif
+
+#include "wx/private/overlay.h"
+
+#ifdef wxHAS_NATIVE_OVERLAY
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+wxOverlayImpl::wxOverlayImpl()
+{
+    m_window = NULL ;
+    m_overlayContext = NULL ;
+    m_overlayWindow = NULL ;
+}
+
+wxOverlayImpl::~wxOverlayImpl()
+{
+    Reset();
+}
+
+bool wxOverlayImpl::IsOk()
+{
+    return m_overlayWindow != NULL ;
+}
+
+void wxOverlayImpl::MacGetBounds( Rect *bounds )
+{
+    int x, y;
+    x=y=0;
+    m_window->MacWindowToRootWindow( &x , &y ) ;
+    WindowRef window = (WindowRef) m_window->MacGetTopLevelWindowRef() ;
+
+    Point localwhere = { y, x };
+    wxMacLocalToGlobal( window, &localwhere ) ;
+
+    bounds->top = localwhere.v+m_y;
+    bounds->left = localwhere.h+m_x;
+    bounds->bottom = localwhere.v+m_y+m_height;
+    bounds->right = localwhere.h+m_x+m_width;
+}
+
+OSStatus wxOverlayImpl::CreateOverlayWindow()
+{
+    OSStatus err;
+
+    WindowAttributes overlayAttributes  = kWindowIgnoreClicksAttribute;
+
+    if ( m_window )
+    {
+        m_overlayParentWindow =(WindowRef) m_window->MacGetTopLevelWindowRef();
+
+        Rect bounds ;
+        MacGetBounds(&bounds);
+        err  = CreateNewWindow( kOverlayWindowClass, overlayAttributes, &bounds, &m_overlayWindow );
+        if ( err == noErr )
+        {
+            SetWindowGroup( m_overlayWindow, GetWindowGroup(m_overlayParentWindow));    //  Put them in the same group so that their window layers are consistent
+        }
+    }
+    else
+    {
+        m_overlayParentWindow = NULL ;
+        CGRect cgbounds ;
+        cgbounds = CGDisplayBounds(CGMainDisplayID());
+        Rect bounds;
+        bounds.top = (short)cgbounds.origin.y;
+        bounds.left = (short)cgbounds.origin.x;
+        bounds.bottom = (short)(bounds.top + cgbounds.size.height);
+        bounds.right = (short)(bounds.left  + cgbounds.size.width);
+        err  = CreateNewWindow( kOverlayWindowClass, overlayAttributes, &bounds, &m_overlayWindow );
+    }
+    ShowWindow(m_overlayWindow);
+    return err;
+}
+
+void wxOverlayImpl::Init( wxDC* dc, int x , int y , int width , int height )
+{
+    wxASSERT_MSG( !IsOk() , _("You cannot Init an overlay twice") );
+
+    m_window = dc->GetWindow();
+    m_x = x ;
+    m_y = y ;
+    if ( dc->IsKindOf( CLASSINFO( wxClientDC ) ))
+    {
+        wxPoint origin = m_window->GetClientAreaOrigin();
+        m_x += origin.x;
+        m_y += origin.y;
+    }
+    m_width = width ;
+    m_height = height ;
+
+    OSStatus err = CreateOverlayWindow();
+    wxASSERT_MSG(  err == noErr , _("Couldn't create the overlay window") );
+#ifndef __LP64__
+    err = QDBeginCGContext(GetWindowPort(m_overlayWindow), &m_overlayContext);
+#endif
+    CGContextTranslateCTM( m_overlayContext, 0, m_height );
+    CGContextScaleCTM( m_overlayContext, 1, -1 );
+    CGContextTranslateCTM( m_overlayContext, -m_x , -m_y );
+    wxASSERT_MSG(  err == noErr , _("Couldn't init the context on the overlay window") );
+}
+
+void wxOverlayImpl::BeginDrawing( wxDC* dc)
+{
+    wxDCImpl *impl = dc->GetImpl();
+    wxGCDCImpl *win_impl = wxDynamicCast(impl,wxGCDCImpl);
+    if (win_impl)
+    {
+        win_impl->SetGraphicsContext( wxGraphicsContext::CreateFromNative( m_overlayContext ) );
+        dc->SetClippingRegion( m_x , m_y , m_width , m_height ) ;
+    }
+}
+
+void wxOverlayImpl::EndDrawing( wxDC* dc)
+{
+    wxDCImpl *impl = dc->GetImpl();
+    wxGCDCImpl *win_impl = wxDynamicCast(impl,wxGCDCImpl);
+    if (win_impl)
+        win_impl->SetGraphicsContext(NULL);
+
+    CGContextFlush( m_overlayContext );
+}
+
+void wxOverlayImpl::Clear(wxDC* WXUNUSED(dc))
+{
+    wxASSERT_MSG( IsOk() , _("You cannot Clear an overlay that is not inited") );
+    CGRect box  = CGRectMake( m_x - 1, m_y - 1 , m_width + 2 , m_height + 2 );
+    CGContextClearRect( m_overlayContext, box );
+}
+
+void wxOverlayImpl::Reset()
+{
+    if ( m_overlayContext )
+    {
+#ifndef __LP64__
+        OSStatus err = QDEndCGContext(GetWindowPort(m_overlayWindow), &m_overlayContext);
+        if ( err != noErr )
+        {
+            wxFAIL_MSG("Couldn't end the context on the overlay window");
+        }
+#endif
+        m_overlayContext = NULL ;
+    }
+
+    // todo : don't dispose, only hide and reposition on next run
+    if (m_overlayWindow)
+    {
+        DisposeWindow(m_overlayWindow);
+        m_overlayWindow = NULL ;
+    }
+}
+
+#endif // wxHAS_NATIVE_OVERLAY