+
+#if wxUSE_METAFILE
+
+void DnDFrame::OnPasteMetafile(wxCommandEvent& WXUNUSED(event))
+{
+ if ( !wxTheClipboard->Open() )
+ {
+ wxLogError(wxT("Can't open clipboard."));
+
+ return;
+ }
+
+ if ( !wxTheClipboard->IsSupported(wxDF_METAFILE) )
+ {
+ wxLogWarning(wxT("No metafile on clipboard"));
+ }
+ else
+ {
+ wxMetaFileDataObject data;
+ if ( !wxTheClipboard->GetData(data) )
+ {
+ wxLogError(wxT("Can't paste metafile from the clipboard"));
+ }
+ else
+ {
+ const wxMetaFile& mf = data.GetMetafile();
+
+ wxLogMessage(wxT("Metafile %dx%d pasted from the clipboard"),
+ mf.GetWidth(), mf.GetHeight());
+
+ ShowMetaFile(mf);
+ }
+ }
+
+ wxTheClipboard->Close();
+}
+
+#endif // wxUSE_METAFILE
+
+// ----------------------------------------------------------------------------
+// file clipboard
+// ----------------------------------------------------------------------------
+
+void DnDFrame::OnCopyFiles(wxCommandEvent& WXUNUSED(event))
+{
+#ifdef __WXMSW__
+ wxFileDialog dialog(this, wxT("Select a file to copy"), wxEmptyString, wxEmptyString,
+ wxT("All files (*.*)|*.*"), 0);
+
+ wxArrayString filenames;
+ while ( dialog.ShowModal() == wxID_OK )
+ {
+ filenames.Add(dialog.GetPath());
+ }
+
+ if ( !filenames.IsEmpty() )
+ {
+ wxFileDataObject *dobj = new wxFileDataObject;
+ size_t count = filenames.GetCount();
+ for ( size_t n = 0; n < count; n++ )
+ {
+ dobj->AddFile(filenames[n]);
+ }
+
+ wxClipboardLocker locker;
+ if ( !locker )
+ {
+ wxLogError(wxT("Can't open clipboard"));
+ }
+ else
+ {
+ if ( !wxTheClipboard->AddData(dobj) )
+ {
+ wxLogError(wxT("Can't copy file(s) to the clipboard"));
+ }
+ else
+ {
+ wxLogStatus(this, wxT("%d file%s copied to the clipboard"),
+ count, count == 1 ? wxEmptyString : wxEmptyString);
+ }
+ }
+ }
+ else
+ {
+ wxLogStatus(this, wxT("Aborted"));
+ }
+#else // !MSW
+ wxLogError(wxT("Sorry, not implemented"));
+#endif // MSW/!MSW
+}
+
+void DnDFrame::OnCopyURL(wxCommandEvent& WXUNUSED(event))
+{
+ // Just hard code it for now, we could ask the user but the point here is
+ // to test copying URLs, it doesn't really matter what it is.
+ const wxString url("http://www.wxwidgets.org/");
+
+ wxClipboardLocker locker;
+ if ( !!locker && wxTheClipboard->AddData(new wxURLDataObject(url)) )
+ {
+ wxLogStatus(this, "Copied URL \"%s\" to %s.",
+ url,
+ GetMenuBar()->IsChecked(Menu_UsePrimary)
+ ? "primary selection"
+ : "clipboard");
+ }
+ else
+ {
+ wxLogError("Failed to copy URL.");
+ }
+}
+
+// ---------------------------------------------------------------------------
+// text clipboard
+// ---------------------------------------------------------------------------
+
+void DnDFrame::OnCopy(wxCommandEvent& WXUNUSED(event))
+{
+ if ( !wxTheClipboard->Open() )
+ {
+ wxLogError(wxT("Can't open clipboard."));
+
+ return;
+ }
+
+ if ( !wxTheClipboard->AddData(new wxTextDataObject(m_strText)) )
+ {
+ wxLogError(wxT("Can't copy data to the clipboard"));
+ }
+ else
+ {
+ wxLogMessage(wxT("Text '%s' put on the clipboard"), m_strText.c_str());
+ }
+
+ wxTheClipboard->Close();
+}
+
+void DnDFrame::OnPaste(wxCommandEvent& WXUNUSED(event))
+{
+ if ( !wxTheClipboard->Open() )
+ {
+ wxLogError(wxT("Can't open clipboard."));
+
+ return;
+ }
+
+ if ( !wxTheClipboard->IsSupported(wxDF_TEXT) )
+ {
+ wxLogWarning(wxT("No text data on clipboard"));
+
+ wxTheClipboard->Close();
+ return;
+ }
+
+ wxTextDataObject text;
+ if ( !wxTheClipboard->GetData(text) )
+ {
+ wxLogError(wxT("Can't paste data from the clipboard"));
+ }
+ else
+ {
+ wxLogMessage(wxT("Text '%s' pasted from the clipboard"),
+ text.GetText().c_str());
+ }
+
+ wxTheClipboard->Close();
+}
+
+#if wxUSE_DRAG_AND_DROP
+
+// ----------------------------------------------------------------------------
+// Notifications called by the base class
+// ----------------------------------------------------------------------------
+
+bool DnDText::OnDropText(wxCoord, wxCoord, const wxString& text)
+{
+ m_pOwner->Append(text);
+
+ return true;
+}
+
+bool DnDFile::OnDropFiles(wxCoord, wxCoord, const wxArrayString& filenames)
+{
+ size_t nFiles = filenames.GetCount();
+ wxString str;
+ str.Printf( wxT("%d files dropped"), (int)nFiles);
+
+ if (m_pOwner != NULL)
+ {
+ m_pOwner->Append(str);
+ for ( size_t n = 0; n < nFiles; n++ )
+ m_pOwner->Append(filenames[n]);
+ }
+
+ return true;
+}
+
+// ----------------------------------------------------------------------------
+// DnDShapeDialog
+// ----------------------------------------------------------------------------
+
+DnDShapeDialog::DnDShapeDialog(wxFrame *parent, DnDShape *shape)
+ :wxDialog( parent, 6001, wxT("Choose Shape"), wxPoint( 10, 10 ),
+ wxSize( 40, 40 ),
+ wxDEFAULT_DIALOG_STYLE | wxRAISED_BORDER | wxRESIZE_BORDER )
+{
+ m_shape = shape;
+ wxBoxSizer* topSizer = new wxBoxSizer( wxVERTICAL );
+
+ // radio box
+ wxBoxSizer* shapesSizer = new wxBoxSizer( wxHORIZONTAL );
+ const wxString choices[] = { wxT("None"), wxT("Triangle"),
+ wxT("Rectangle"), wxT("Ellipse") };
+
+ m_radio = new wxRadioBox( this, wxID_ANY, wxT("&Shape"),
+ wxDefaultPosition, wxDefaultSize, 4, choices, 4,
+ wxRA_SPECIFY_COLS );
+ shapesSizer->Add( m_radio, 0, wxGROW|wxALL, 5 );
+ topSizer->Add( shapesSizer, 0, wxALL, 2 );
+
+ // attributes
+ wxStaticBox* box = new wxStaticBox( this, wxID_ANY, wxT("&Attributes") );
+ wxStaticBoxSizer* attrSizer = new wxStaticBoxSizer( box, wxHORIZONTAL );
+ wxFlexGridSizer* xywhSizer = new wxFlexGridSizer( 2 );
+
+ wxStaticText* st;
+
+ st = new wxStaticText( this, wxID_ANY, wxT("Position &X:") );
+ m_textX = new wxTextCtrl( this, wxID_ANY, wxEmptyString, wxDefaultPosition,
+ wxSize( 30, 20 ) );
+ xywhSizer->Add( st, 1, wxGROW|wxALL, 2 );
+ xywhSizer->Add( m_textX, 1, wxGROW|wxALL, 2 );
+
+ st = new wxStaticText( this, wxID_ANY, wxT("Size &width:") );
+ m_textW = new wxTextCtrl( this, wxID_ANY, wxEmptyString, wxDefaultPosition,
+ wxSize( 30, 20 ) );
+ xywhSizer->Add( st, 1, wxGROW|wxALL, 2 );
+ xywhSizer->Add( m_textW, 1, wxGROW|wxALL, 2 );
+
+ st = new wxStaticText( this, wxID_ANY, wxT("&Y:") );
+ m_textY = new wxTextCtrl( this, wxID_ANY, wxEmptyString, wxDefaultPosition,
+ wxSize( 30, 20 ) );
+ xywhSizer->Add( st, 1, wxALL|wxALIGN_RIGHT, 2 );
+ xywhSizer->Add( m_textY, 1, wxGROW|wxALL, 2 );
+
+ st = new wxStaticText( this, wxID_ANY, wxT("&height:") );
+ m_textH = new wxTextCtrl( this, wxID_ANY, wxEmptyString, wxDefaultPosition,
+ wxSize( 30, 20 ) );
+ xywhSizer->Add( st, 1, wxALL|wxALIGN_RIGHT, 2 );
+ xywhSizer->Add( m_textH, 1, wxGROW|wxALL, 2 );
+
+ wxButton* col = new wxButton( this, Button_Colour, wxT("&Colour...") );
+ attrSizer->Add( xywhSizer, 1, wxGROW );
+ attrSizer->Add( col, 0, wxALL|wxALIGN_CENTRE_VERTICAL, 2 );
+ topSizer->Add( attrSizer, 0, wxGROW|wxALL, 5 );
+
+ // buttons
+ wxBoxSizer* buttonSizer = new wxBoxSizer( wxHORIZONTAL );
+ wxButton* bt;
+ bt = new wxButton( this, wxID_OK, wxT("Ok") );
+ buttonSizer->Add( bt, 0, wxALL, 2 );
+ bt = new wxButton( this, wxID_CANCEL, wxT("Cancel") );
+ buttonSizer->Add( bt, 0, wxALL, 2 );
+ topSizer->Add( buttonSizer, 0, wxALL|wxALIGN_RIGHT, 2 );
+
+ SetSizerAndFit( topSizer );
+}
+
+DnDShape *DnDShapeDialog::GetShape() const
+{
+ switch ( m_shapeKind )
+ {
+ default:
+ case DnDShape::None: return NULL;
+ case DnDShape::Triangle: return new DnDTriangularShape(m_pos, m_size, m_col);
+ case DnDShape::Rectangle: return new DnDRectangularShape(m_pos, m_size, m_col);
+ case DnDShape::Ellipse: return new DnDEllipticShape(m_pos, m_size, m_col);
+ }
+}
+
+bool DnDShapeDialog::TransferDataToWindow()
+{
+
+ if ( m_shape )
+ {
+ m_radio->SetSelection(m_shape->GetKind());
+ m_pos = m_shape->GetPosition();
+ m_size = m_shape->GetSize();
+ m_col = m_shape->GetColour();
+ }
+ else
+ {
+ m_radio->SetSelection(DnDShape::None);
+ m_pos = wxPoint(1, 1);
+ m_size = wxSize(100, 100);
+ }
+
+ m_textX->SetValue(wxString() << m_pos.x);
+ m_textY->SetValue(wxString() << m_pos.y);
+ m_textW->SetValue(wxString() << m_size.x);
+ m_textH->SetValue(wxString() << m_size.y);
+
+ return true;
+}
+
+bool DnDShapeDialog::TransferDataFromWindow()
+{
+ m_shapeKind = (DnDShape::Kind)m_radio->GetSelection();
+
+ m_pos.x = wxAtoi(m_textX->GetValue());
+ m_pos.y = wxAtoi(m_textY->GetValue());
+ m_size.x = wxAtoi(m_textW->GetValue());
+ m_size.y = wxAtoi(m_textH->GetValue());
+
+ if ( !m_pos.x || !m_pos.y || !m_size.x || !m_size.y )
+ {
+ wxMessageBox(wxT("All sizes and positions should be non null!"),
+ wxT("Invalid shape"), wxICON_HAND | wxOK, this);
+
+ return false;
+ }
+
+ return true;
+}
+
+void DnDShapeDialog::OnColour(wxCommandEvent& WXUNUSED(event))
+{
+ wxColourData data;
+ data.SetChooseFull(true);
+ for (int i = 0; i < 16; i++)
+ {
+ wxColour colour((unsigned char)(i*16), (unsigned char)(i*16), (unsigned char)(i*16));
+ data.SetCustomColour(i, colour);
+ }
+
+ wxColourDialog dialog(this, &data);
+ if ( dialog.ShowModal() == wxID_OK )
+ {
+ m_col = dialog.GetColourData().GetColour();
+ }
+}
+
+// ----------------------------------------------------------------------------
+// DnDShapeFrame
+// ----------------------------------------------------------------------------
+
+DnDShapeFrame *DnDShapeFrame::ms_lastDropTarget = NULL;
+
+DnDShapeFrame::DnDShapeFrame(wxFrame *parent)
+ : wxFrame(parent, wxID_ANY, wxT("Shape Frame"))
+{
+#if wxUSE_STATUSBAR
+ CreateStatusBar();
+#endif // wxUSE_STATUSBAR
+
+ wxMenu *menuShape = new wxMenu;
+ menuShape->Append(Menu_Shape_New, wxT("&New default shape\tCtrl-S"));
+ menuShape->Append(Menu_Shape_Edit, wxT("&Edit shape\tCtrl-E"));
+ menuShape->AppendSeparator();
+ menuShape->Append(Menu_Shape_Clear, wxT("&Clear shape\tCtrl-L"));
+
+ wxMenu *menuClipboard = new wxMenu;
+ menuClipboard->Append(Menu_ShapeClipboard_Copy, wxT("&Copy\tCtrl-C"));
+ menuClipboard->Append(Menu_ShapeClipboard_Paste, wxT("&Paste\tCtrl-V"));
+
+ wxMenuBar *menubar = new wxMenuBar;
+ menubar->Append(menuShape, wxT("&Shape"));
+ menubar->Append(menuClipboard, wxT("&Clipboard"));
+
+ SetMenuBar(menubar);
+
+#if wxUSE_STATUSBAR
+ SetStatusText(wxT("Press Ctrl-S to create a new shape"));
+#endif // wxUSE_STATUSBAR
+
+ SetDropTarget(new DnDShapeDropTarget(this));
+
+ m_shape = NULL;
+
+ SetBackgroundColour(*wxWHITE);
+}
+
+DnDShapeFrame::~DnDShapeFrame()
+{
+ if (m_shape)
+ delete m_shape;
+}
+
+void DnDShapeFrame::SetShape(DnDShape *shape)
+{
+ if (m_shape)
+ delete m_shape;
+ m_shape = shape;
+ Refresh();
+}
+
+// callbacks
+void DnDShapeFrame::OnDrag(wxMouseEvent& event)
+{
+ if ( !m_shape )
+ {
+ event.Skip();
+
+ return;
+ }
+
+ // start drag operation
+ DnDShapeDataObject shapeData(m_shape);
+ wxDropSource source(shapeData, this);
+
+ const wxChar *pc = NULL;
+ switch ( source.DoDragDrop(true) )
+ {
+ default:
+ case wxDragError:
+ wxLogError(wxT("An error occurred during drag and drop operation"));
+ break;
+
+ case wxDragNone:
+#if wxUSE_STATUSBAR
+ SetStatusText(wxT("Nothing happened"));
+#endif // wxUSE_STATUSBAR
+ break;
+
+ case wxDragCopy:
+ pc = wxT("copied");
+ break;
+
+ case wxDragMove:
+ pc = wxT("moved");
+ if ( ms_lastDropTarget != this )
+ {
+ // don't delete the shape if we dropped it on ourselves!
+ SetShape(NULL);
+ }
+ break;
+
+ case wxDragCancel:
+#if wxUSE_STATUSBAR
+ SetStatusText(wxT("Drag and drop operation cancelled"));
+#endif // wxUSE_STATUSBAR
+ break;
+ }
+
+ if ( pc )
+ {
+#if wxUSE_STATUSBAR
+ SetStatusText(wxString(wxT("Shape successfully ")) + pc);
+#endif // wxUSE_STATUSBAR
+ }
+ //else: status text already set
+}
+
+void DnDShapeFrame::OnDrop(wxCoord x, wxCoord y, DnDShape *shape)
+{
+ ms_lastDropTarget = this;
+
+ wxPoint pt(x, y);
+
+#if wxUSE_STATUSBAR
+ wxString s;
+ s.Printf(wxT("Shape dropped at (%d, %d)"), pt.x, pt.y);
+ SetStatusText(s);
+#endif // wxUSE_STATUSBAR
+
+ shape->Move(pt);
+ SetShape(shape);
+}
+
+void DnDShapeFrame::OnEditShape(wxCommandEvent& WXUNUSED(event))
+{
+ DnDShapeDialog dlg(this, m_shape);
+ if ( dlg.ShowModal() == wxID_OK )
+ {
+ SetShape(dlg.GetShape());
+
+#if wxUSE_STATUSBAR
+ if ( m_shape )
+ {
+ SetStatusText(wxT("You can now drag the shape to another frame"));
+ }
+#endif // wxUSE_STATUSBAR
+ }
+}
+
+void DnDShapeFrame::OnNewShape(wxCommandEvent& WXUNUSED(event))
+{
+ SetShape(new DnDEllipticShape(wxPoint(10, 10), wxSize(80, 60), *wxRED));
+
+#if wxUSE_STATUSBAR
+ SetStatusText(wxT("You can now drag the shape to another frame"));
+#endif // wxUSE_STATUSBAR
+}
+
+void DnDShapeFrame::OnClearShape(wxCommandEvent& WXUNUSED(event))
+{
+ SetShape(NULL);
+}
+
+void DnDShapeFrame::OnCopyShape(wxCommandEvent& WXUNUSED(event))
+{
+ if ( m_shape )
+ {
+ wxClipboardLocker clipLocker;
+ if ( !clipLocker )
+ {
+ wxLogError(wxT("Can't open the clipboard"));
+
+ return;
+ }
+
+ wxTheClipboard->AddData(new DnDShapeDataObject(m_shape));
+ }
+}
+
+void DnDShapeFrame::OnPasteShape(wxCommandEvent& WXUNUSED(event))
+{
+ wxClipboardLocker clipLocker;
+ if ( !clipLocker )
+ {
+ wxLogError(wxT("Can't open the clipboard"));
+
+ return;
+ }
+
+ DnDShapeDataObject shapeDataObject(NULL);
+ if ( wxTheClipboard->GetData(shapeDataObject) )
+ {
+ SetShape(shapeDataObject.GetShape());
+ }
+ else
+ {
+ wxLogStatus(wxT("No shape on the clipboard"));
+ }
+}
+
+void DnDShapeFrame::OnUpdateUICopy(wxUpdateUIEvent& event)
+{
+ event.Enable( m_shape != NULL );
+}
+
+void DnDShapeFrame::OnUpdateUIPaste(wxUpdateUIEvent& event)
+{
+ event.Enable( wxTheClipboard->IsSupported(wxDataFormat(shapeFormatId)) );
+}
+
+void DnDShapeFrame::OnPaint(wxPaintEvent& event)
+{
+ if ( m_shape )
+ {
+ wxPaintDC dc(this);
+
+ m_shape->Draw(dc);
+ }
+ else
+ {
+ event.Skip();
+ }
+}
+
+// ----------------------------------------------------------------------------
+// DnDShape
+// ----------------------------------------------------------------------------
+
+DnDShape *DnDShape::New(const void *buf)
+{
+ const ShapeDump& dump = *(const ShapeDump *)buf;
+ switch ( dump.k )
+ {
+ case Triangle:
+ return new DnDTriangularShape(wxPoint(dump.x, dump.y),
+ wxSize(dump.w, dump.h),
+ wxColour(dump.r, dump.g, dump.b));
+
+ case Rectangle:
+ return new DnDRectangularShape(wxPoint(dump.x, dump.y),
+ wxSize(dump.w, dump.h),
+ wxColour(dump.r, dump.g, dump.b));
+
+ case Ellipse:
+ return new DnDEllipticShape(wxPoint(dump.x, dump.y),
+ wxSize(dump.w, dump.h),
+ wxColour(dump.r, dump.g, dump.b));
+
+ default:
+ wxFAIL_MSG(wxT("invalid shape!"));
+ return NULL;
+ }
+}
+
+// ----------------------------------------------------------------------------
+// DnDShapeDataObject
+// ----------------------------------------------------------------------------
+
+#if wxUSE_METAFILE
+
+void DnDShapeDataObject::CreateMetaFile() const
+{
+ wxPoint pos = m_shape->GetPosition();
+ wxSize size = m_shape->GetSize();
+
+ wxMetaFileDC dcMF(wxEmptyString, pos.x + size.x, pos.y + size.y);
+
+ m_shape->Draw(dcMF);
+
+ wxMetafile *mf = dcMF.Close();
+
+ DnDShapeDataObject *self = (DnDShapeDataObject *)this; // const_cast
+ self->m_dobjMetaFile.SetMetafile(*mf);
+ self->m_hasMetaFile = true;
+
+ delete mf;
+}
+
+#endif // wxUSE_METAFILE
+
+void DnDShapeDataObject::CreateBitmap() const
+{
+ wxPoint pos = m_shape->GetPosition();
+ wxSize size = m_shape->GetSize();
+ int x = pos.x + size.x,
+ y = pos.y + size.y;
+ wxBitmap bitmap(x, y);
+ wxMemoryDC dc;
+ dc.SelectObject(bitmap);
+ dc.SetBrush(wxBrush(wxT("white"), wxSOLID));
+ dc.Clear();
+ m_shape->Draw(dc);
+ dc.SelectObject(wxNullBitmap);
+
+ DnDShapeDataObject *self = (DnDShapeDataObject *)this; // const_cast
+ self->m_dobjBitmap.SetBitmap(bitmap);
+ self->m_hasBitmap = true;
+}
+
+#endif // wxUSE_DRAG_AND_DROP
+
+// ----------------------------------------------------------------------------
+// global functions
+// ----------------------------------------------------------------------------
+
+static void ShowBitmap(const wxBitmap& bitmap)
+{
+ wxFrame *frame = new wxFrame(NULL, wxID_ANY, wxT("Bitmap view"));
+#if wxUSE_STATUSBAR
+ frame->CreateStatusBar();
+#endif // wxUSE_STATUSBAR
+ DnDCanvasBitmap *canvas = new DnDCanvasBitmap(frame);
+ canvas->SetBitmap(bitmap);
+
+ int w = bitmap.GetWidth(),
+ h = bitmap.GetHeight();
+#if wxUSE_STATUSBAR
+ frame->SetStatusText(wxString::Format(wxT("%dx%d"), w, h));
+#endif // wxUSE_STATUSBAR
+
+ frame->SetClientSize(w > 100 ? 100 : w, h > 100 ? 100 : h);
+ frame->Show(true);
+}
+
+#if wxUSE_METAFILE
+
+static void ShowMetaFile(const wxMetaFile& metafile)
+{
+ wxFrame *frame = new wxFrame(NULL, wxID_ANY, wxT("Metafile view"));
+ frame->CreateStatusBar();
+ DnDCanvasMetafile *canvas = new DnDCanvasMetafile(frame);
+ canvas->SetMetafile(metafile);
+
+ wxSize size = metafile.GetSize();
+ frame->SetStatusText(wxString::Format(wxT("%dx%d"), size.x, size.y));
+
+ frame->SetClientSize(size.x > 100 ? 100 : size.x,
+ size.y > 100 ? 100 : size.y);
+ frame->Show();
+}
+
+#endif // wxUSE_METAFILE
+
+#endif // wxUSE_DRAG_AND_DROP || wxUSE_CLIPBOARD