Complete rewrite of DoDrawBitmap() and DoBlit().

[wxWidgets.git] / include / wx / clipbrd.h

diff --git a/include/wx/clipbrd.h b/include/wx/clipbrd.h
index 47f0af66b5e441b4964cee32ed42dbb8f3eac47b..d3c90df714f18e1472c10e1cb61324923649adc0 100644 (file)
--- a/include/wx/clipbrd.h
+++ b/include/wx/clipbrd.h
@@ -5,27 +5,25 @@
 // Modified by:
 // Created:     19.10.99
 // RCS-ID:      $Id$
-// Copyright:   (c) wxWindows Team
+// Copyright:   (c) wxWidgets Team
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_CLIPBRD_H_BASE_
 #define _WX_CLIPBRD_H_BASE_
 
-#ifdef __GNUG__
-    #pragma interface "clipboardbase.h"
-#endif
-
 #include "wx/defs.h"
 
 #if wxUSE_CLIPBOARD
 
 
-#include "wx/object.h"
-#include "wx/wxchar.h"
+#include "wx/event.h"
+#include "wx/chartype.h"
+#include "wx/vector.h"
 
-class WXDLLEXPORT wxDataFormat;
-class WXDLLEXPORT wxDataObject;
+class WXDLLIMPEXP_FWD_CORE wxDataFormat;
+class WXDLLIMPEXP_FWD_CORE wxDataObject;
+class WXDLLIMPEXP_FWD_CORE wxClipboard;
 
 // ----------------------------------------------------------------------------
 // wxClipboard represents the system clipboard. Normally, you should use
@@ -35,10 +33,10 @@ class WXDLLEXPORT wxDataObject;
 // with wxDataObject.
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxClipboardBase : public wxObject
+class WXDLLIMPEXP_CORE wxClipboardBase : public wxObject
 {
 public:
-    wxClipboardBase();
+    wxClipboardBase() { m_usePrimary = false; }
 
     // open the clipboard before Add/SetData() and GetData()
     virtual bool Open() = 0;
@@ -46,6 +44,9 @@ public:
     // close the clipboard after Add/SetData() and GetData()
     virtual void Close() = 0;
 
+    // query whether the clipboard is opened
+    virtual bool IsOpened() const = 0;
+
     // add to the clipboard data
     //
     // NB: the clipboard owns the pointer and will delete it, so data must be
@@ -59,22 +60,88 @@ public:
     // ask if data in correct format is available
     virtual bool IsSupported( const wxDataFormat& format ) = 0;
 
+    // ask if data in correct format is available
+    virtual bool IsSupportedAsync( wxEvtHandler *sink );
+    
     // fill data with data on the clipboard (if available)
     virtual bool GetData( wxDataObject& data ) = 0;
-    
+
     // clears wxTheClipboard and the system's clipboard if possible
     virtual void Clear() = 0;
 
     // flushes the clipboard: this means that the data which is currently on
     // clipboard will stay available even after the application exits (possibly
     // eating memory), otherwise the clipboard will be emptied on exit
-    virtual bool Flush() { return FALSE; }
+    virtual bool Flush() { return false; }
+
+    // this allows to choose whether we work with CLIPBOARD (default) or
+    // PRIMARY selection on X11-based systems
+    //
+    // on the other ones, working with primary selection does nothing: this
+    // allows to write code which sets the primary selection when something is
+    // selected without any ill effects (i.e. without overwriting the
+    // clipboard which would be wrong on the platforms without X11 PRIMARY)
+    virtual void UsePrimarySelection(bool usePrimary = false)
+    {
+        m_usePrimary = usePrimary;
+    }
+
+    // return true if we're using primary selection
+    bool IsUsingPrimarySelection() const { return m_usePrimary; }
 
-    // X11 has two clipboards which get selected by this call. Empty on MSW.
-    virtual void UsePrimarySelection( bool WXUNUSED(primary) = FALSE ) { }
+    // Returns global instance (wxTheClipboard) of the object:
+    static wxClipboard *Get();
 
+
+    // don't use this directly, it is public for compatibility with some ports
+    // (wxX11, wxMotif, ...) only
+    bool m_usePrimary;
 };
 
+// ----------------------------------------------------------------------------
+// asynchronous clipboard event
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxClipboardEvent : public wxEvent
+{
+public:
+    wxClipboardEvent(wxEventType commandType = wxEVT_NULL)
+        : wxEvent(0,commandType)
+        { }
+
+    wxClipboardEvent(const wxClipboardEvent& event)
+        : wxEvent(event),
+          m_formats(event.m_formats)
+        { }
+
+    bool SupportsFormat( const wxDataFormat &format ) const;
+    void AddFormat( const wxDataFormat &format );
+
+    virtual wxEvent *Clone() const { return new wxClipboardEvent(*this); }
+
+protected:
+    wxVector<wxDataFormat> m_formats;
+
+private:
+    DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxClipboardEvent)
+};
+
+extern WXDLLIMPEXP_CORE const wxEventType wxEVT_CLIPBOARD_CHANGED;
+
+typedef void (wxEvtHandler::*wxClipboardEventFunction)(wxClipboardEvent&);
+
+#define wxClipboardEventHandler(func) \
+    (wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxClipboardEventFunction, &func)
+
+#define EVT_CLIPBOARD_CHANGED(func) wx__DECLARE_EVT0(wxEVT_CLIPBOARD_CHANGED, wxClipboardEventHandler(func))
+
+// ----------------------------------------------------------------------------
+// globals
+// ----------------------------------------------------------------------------
+
+// The global clipboard object - backward compatible access macro:
+#define wxTheClipboard   (wxClipboard::Get())
+
 // ----------------------------------------------------------------------------
 // include platform-specific class declaration
 // ----------------------------------------------------------------------------
@@ -83,24 +150,53 @@ public:
     #include "wx/msw/clipbrd.h"
 #elif defined(__WXMOTIF__)
     #include "wx/motif/clipbrd.h"
-#elif defined(__WXGTK__)
-    #include "wx/gtk/clipbrd.h"
-#elif defined(__WXQT__)
+#elif defined(__WXGTK20__)
     #include "wx/gtk/clipbrd.h"
+#elif defined(__WXGTK__)
+    #include "wx/gtk1/clipbrd.h"
+#elif defined(__WXX11__)
+    #include "wx/x11/clipbrd.h"
+#elif defined(__WXMGL__)
+    #include "wx/mgl/clipbrd.h"
 #elif defined(__WXMAC__)
-    #include "wx/mac/clipbrd.h"
+    #include "wx/osx/clipbrd.h"
+#elif defined(__WXCOCOA__)
+    #include "wx/cocoa/clipbrd.h"
 #elif defined(__WXPM__)
     #include "wx/os2/clipbrd.h"
-#elif defined(__WXSTUBS__)
-    #include "wx/stubs/clipbrd.h"
 #endif
 
 // ----------------------------------------------------------------------------
-// globals
+// helpful class for opening the clipboard and automatically closing it
 // ----------------------------------------------------------------------------
 
-// The global clipboard object
-WXDLLEXPORT_DATA(extern wxClipboard *) wxTheClipboard;
+class WXDLLIMPEXP_CORE wxClipboardLocker
+{
+public:
+    wxClipboardLocker(wxClipboard *clipboard = (wxClipboard *)NULL)
+    {
+        m_clipboard = clipboard ? clipboard : wxTheClipboard;
+        if ( m_clipboard )
+        {
+            m_clipboard->Open();
+        }
+    }
+
+    bool operator!() const { return !m_clipboard->IsOpened(); }
+
+    ~wxClipboardLocker()
+    {
+        if ( m_clipboard )
+        {
+            m_clipboard->Close();
+        }
+    }
+
+private:
+    wxClipboard *m_clipboard;
+
+    DECLARE_NO_COPY_CLASS(wxClipboardLocker)
+};
 
 #endif // wxUSE_CLIPBOARD