moved wxOverlay into overlay.* files and out of dc.h/dcbase.cpp; implemented wxOverla...

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

diff --git a/src/mac/carbon/overlay.cpp b/src/mac/carbon/overlay.cpp
new file mode 100644 (file)
index 0000000..e1bb6db
--- /dev/null
+++ b/src/mac/carbon/overlay.cpp
@@ -0,0 +1,165 @@
+/////////////////////////////////////////////////////////////////////////////
+// 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"
+#include "wx/private/overlay.h"
+
+#if 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 )
+{
+    wxPoint origin(0,0);
+    origin = m_window->ClientToScreen( origin );
+    bounds->top = origin.y;
+    bounds->left = origin.x;
+    bounds->bottom = origin.y+m_y+m_height;
+    bounds->right = origin.x+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 = cgbounds.origin.y;
+               bounds.left = cgbounds.origin.x;
+               bounds.bottom = bounds.top + cgbounds.size.height;
+               bounds.right = bounds.left  + cgbounds.size.width;
+               err  = CreateNewWindow( kOverlayWindowClass, overlayAttributes, &bounds, &m_overlayWindow );            
+       }
+       ShowWindow(m_overlayWindow);
+       return err;
+}
+
+void wxOverlayImpl::Init( wxWindowDC* 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 ;
+    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+m_y );
+    CGContextScaleCTM( m_overlayContext, 1, -1 );
+    wxASSERT_MSG(  err == noErr , _("Couldn't init the context on the overlay window") );
+}
+
+void wxOverlayImpl::BeginDrawing( wxWindowDC* dc)
+{
+// TODO CS
+       dc->SetGraphicsContext( wxGraphicsContext::CreateFromNative( m_overlayContext ) );
+/*
+    delete dc->m_graphicContext ;
+    dc->m_graphicContext = new wxMacCGContext( m_overlayContext );
+    // we are right now startin at 0,0 not at the wxWindow's origin, so most of the calculations 
+    // int dc are already corect
+    // just to make sure :
+    dc->m_macLocalOrigin.x = 0 ;
+    dc->m_macLocalOrigin.y = 0 ;
+       */
+    wxSize size = dc->GetSize() ;
+    dc->SetClippingRegion( 0 , 0 , size.x , size.y ) ;
+}
+
+void wxOverlayImpl::EndDrawing( wxWindowDC* dc)
+{
+       dc->SetGraphicsContext(NULL);
+}
+
+void wxOverlayImpl::Clear(wxWindowDC* 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);
+        wxASSERT_MSG(  err == noErr , _("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