Added clipbaord sample

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57482 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/clipboard/clipboard.bkl

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+<?xml version="1.0" ?>
+<makefile>
+
+    <include file="../../build/bakefiles/common_samples.bkl"/>
+
+    <exe id="dnd" template="wx_sample" template_append="wx_append">
+        <sources>clipboard.cpp</sources>
+        <wx-lib>core</wx-lib>
+        <wx-lib>base</wx-lib>
+        <win32-res>clipboard.rc</win32-res>
+    </exe>
+
+    <wx-data id="data">
+        <files>wxwin.png</files>
+    </wx-data>
+
+</makefile>

samples/clipboard/clipboard.cpp

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+/////////////////////////////////////////////////////////////////////////////
+// Name:        clipboard.cpp
+// Purpose:     clipbaord wxWidgets sample
+// Author:      Robert Roebling
+// RCS-ID:      $Id: minimal.cpp 53461 2008-05-05 23:30:33Z VZ $
+// Copyright:   (c) Robert Roebling
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// For compilers that support precompilation, includes "wx/wx.h".
+#include "wx/wxprec.h"
+ 
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+// for all others, include the necessary headers (this file is usually all you
+// need because it includes almost all "standard" wxWidgets headers)
+#ifndef WX_PRECOMP
+    #include "wx/wx.h"
+#endif
+
+#include "wx/clipbrd.h"
+
+#if !defined(__WXMSW__) && !defined(__WXPM__)
+    #include "../sample.xpm"
+#endif
+
+class MyApp : public wxApp
+{
+public:
+    virtual bool OnInit();
+};
+
+enum AsyncRequestState
+{
+   Idle,
+   Waiting,
+   Finished
+};
+
+class MyFrame : public wxFrame
+{
+public:
+    MyFrame(const wxString& title);
+
+    void OnQuit(wxCommandEvent&event);
+    void OnAbout(wxCommandEvent&event);
+    void OnWriteClipboardContents(wxCommandEvent&event);
+    void OnUpdateUI(wxUpdateUIEvent&event);
+    void OnClipboardChange(wxClipboardEvent&event);
+
+private:
+    wxTextCtrl        *m_textctrl;
+    AsyncRequestState  m_request;
+    bool               m_clipboardSupportsText;
+
+    DECLARE_EVENT_TABLE()
+};
+
+enum
+{
+    ID_Quit   = wxID_EXIT,
+    ID_About  = wxID_ABOUT,
+    ID_Write  = 100,
+    ID_Text   = 101
+};
+
+BEGIN_EVENT_TABLE(MyFrame, wxFrame)
+    EVT_MENU(ID_Quit,  MyFrame::OnQuit)
+    EVT_MENU(ID_About, MyFrame::OnAbout)
+    EVT_BUTTON(ID_Write, MyFrame::OnWriteClipboardContents)
+    EVT_UPDATE_UI(ID_Write, MyFrame::OnUpdateUI)
+    EVT_CLIPBOARD_CHANGED(MyFrame::OnClipboardChange)
+END_EVENT_TABLE()
+
+IMPLEMENT_APP(MyApp)
+
+bool MyApp::OnInit()
+{
+    if ( !wxApp::OnInit() )
+        return false;
+
+    MyFrame *frame = new MyFrame("wxClipboard sample");
+    frame->Show(true);
+    
+    return true;
+}
+
+MyFrame::MyFrame(const wxString& title)
+       : wxFrame(NULL, wxID_ANY, title)
+{
+    // set the frame icon
+    SetIcon(wxICON(sample));
+    
+    m_request = Idle;
+    m_clipboardSupportsText = false;
+
+#if wxUSE_MENUS
+    // create a menu bar
+    wxMenu *fileMenu = new wxMenu;
+
+    // the "About" item should be in the help menu
+    wxMenu *helpMenu = new wxMenu;
+    helpMenu->Append(ID_About, "&About...\tF1", "Show about dialog");
+
+    fileMenu->Append(ID_Quit, "E&xit\tAlt-X", "Quit this program");
+
+    // now append the freshly created menu to the menu bar...
+    wxMenuBar *menuBar = new wxMenuBar();
+    menuBar->Append(fileMenu, "&File");
+    menuBar->Append(helpMenu, "&Help");
+
+    // ... and attach this menu bar to the frame
+    SetMenuBar(menuBar);
+#endif // wxUSE_MENUS
+
+    wxPanel *panel = new wxPanel( this, -1 );
+    
+    wxBoxSizer *main_sizer = new wxBoxSizer( wxVERTICAL );
+    main_sizer->Add( new wxButton( panel, ID_Write, "Get clipboard text" ) );
+    m_textctrl = new wxTextCtrl( panel, ID_Text, "", wxDefaultPosition,
+      wxDefaultSize, wxTE_MULTILINE );
+    main_sizer->Add( m_textctrl, 1, wxGROW );
+    panel->SetSizer( main_sizer );
+}
+
+void MyFrame::OnWriteClipboardContents(wxCommandEvent& event)
+{
+   if (wxTheClipboard->Open())
+   {
+        if (wxTheClipboard->IsSupported( wxDF_UNICODETEXT ))
+        {
+            wxTextDataObject data;
+            wxTheClipboard->GetData( data );
+            m_textctrl->Clear();
+            m_textctrl->SetValue( data.GetText() );
+            
+        }
+        wxTheClipboard->Close();
+   }
+}
+
+void MyFrame::OnClipboardChange(wxClipboardEvent&event)
+{
+    m_clipboardSupportsText = event.SupportsFormat( wxDF_UNICODETEXT );
+    m_request = Finished;
+}
+
+void MyFrame::OnUpdateUI(wxUpdateUIEvent&event)
+{
+    if (m_request == Idle)
+    {
+        wxTheClipboard->IsSupportedAsync( this );
+        m_request = Waiting;
+        event.Enable( m_clipboardSupportsText ); // not yet known, assume last value
+    } 
+    else if (m_request == Waiting)
+    {
+        event.Enable( m_clipboardSupportsText ); // not yet known, assume last value
+    }
+    else if (m_request == Finished)
+    {
+        event.Enable( m_clipboardSupportsText );
+        m_request = Idle;
+    }
+}
+
+void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
+{
+    // true is to force the frame to close
+    Close(true);
+}
+
+void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
+{
+}
+
+

samples/clipboard/clipboard.rc

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+#include "../sample.rc"
+