+ return m_formatShape;
+ }
+
+ virtual size_t GetFormatCount(Direction dir) const
+ {
+ // our custom format is supported by both GetData() and SetData()
+ size_t nFormats = 1;
+ if ( dir == Get )
+ {
+ // but the bitmap format(s) are only supported for output
+ nFormats += m_dobjBitmap.GetFormatCount(dir);
+
+#ifdef USE_METAFILES
+ nFormats += m_dobjMetaFile.GetFormatCount(dir);
+#endif // Windows
+ }
+
+ return nFormats;
+ }
+
+ virtual void GetAllFormats(wxDataFormat *formats, Direction dir) const
+ {
+ formats[0] = m_formatShape;
+ if ( dir == Get )
+ {
+ // in Get direction we additionally support bitmaps and metafiles
+ // under Windows
+ m_dobjBitmap.GetAllFormats(&formats[1], dir);
+
+#ifdef USE_METAFILES
+ // don't assume that m_dobjBitmap has only 1 format
+ m_dobjMetaFile.GetAllFormats(&formats[1 +
+ m_dobjBitmap.GetFormatCount(dir)], dir);
+#endif // Windows
+ }
+ }
+
+ virtual size_t GetDataSize(const wxDataFormat& format) const
+ {
+ if ( format == m_formatShape )
+ {
+ return m_shape->GetDataSize();
+ }
+#ifdef USE_METAFILES
+ else if ( m_dobjMetaFile.IsSupported(format) )
+ {
+ if ( !m_hasMetaFile )
+ CreateMetaFile();
+
+ return m_dobjMetaFile.GetDataSize(format);
+ }
+#endif // Windows
+ else
+ {
+ wxASSERT_MSG( m_dobjBitmap.IsSupported(format),
+ wxT("unexpected format") );
+
+ if ( !m_hasBitmap )
+ CreateBitmap();
+
+ return m_dobjBitmap.GetDataSize();
+ }
+ }
+
+ virtual bool GetDataHere(const wxDataFormat& format, void *pBuf) const
+ {
+ if ( format == m_formatShape )
+ {
+ m_shape->GetDataHere(pBuf);
+
+ return TRUE;
+ }
+#ifdef USE_METAFILES
+ else if ( m_dobjMetaFile.IsSupported(format) )
+ {
+ if ( !m_hasMetaFile )
+ CreateMetaFile();
+
+ return m_dobjMetaFile.GetDataHere(format, pBuf);
+ }
+#endif // Windows
+ else
+ {
+ wxASSERT_MSG( m_dobjBitmap.IsSupported(format),
+ wxT("unexpected format") );
+
+ if ( !m_hasBitmap )
+ CreateBitmap();
+
+ return m_dobjBitmap.GetDataHere(pBuf);
+ }
+ }
+
+ virtual bool SetData(const wxDataFormat& format,
+ size_t len, const void *buf)
+ {
+ wxCHECK_MSG( format == m_formatShape, FALSE,
+ wxT( "unsupported format") );
+
+ delete m_shape;
+ m_shape = DnDShape::New(buf);
+
+ // the shape has changed
+ m_hasBitmap = FALSE;
+
+#ifdef USE_METAFILES
+ m_hasMetaFile = FALSE;
+#endif // Windows
+
+ return TRUE;
+ }
+
+private:
+ // creates a bitmap and assigns it to m_dobjBitmap (also sets m_hasBitmap)
+ void CreateBitmap() const;
+#ifdef USE_METAFILES
+ void CreateMetaFile() const;
+#endif // Windows
+
+ wxDataFormat m_formatShape; // our custom format
+
+ wxBitmapDataObject m_dobjBitmap; // it handles bitmaps
+ bool m_hasBitmap; // true if m_dobjBitmap has valid bitmap
+
+#ifdef USE_METAFILES
+ wxMetaFileDataObject m_dobjMetaFile;// handles metafiles
+ bool m_hasMetaFile; // true if we have valid metafile
+#endif // Windows
+
+ DnDShape *m_shape; // our data
+};
+
+// ----------------------------------------------------------------------------
+// A dialog to edit shape properties
+// ----------------------------------------------------------------------------
+
+class DnDShapeDialog : public wxDialog
+{
+public:
+ DnDShapeDialog(wxFrame *parent, DnDShape *shape);
+
+ DnDShape *GetShape() const;
+
+ virtual bool TransferDataToWindow();
+ virtual bool TransferDataFromWindow();
+
+ void OnColour(wxCommandEvent& event);
+
+private:
+ // input
+ DnDShape *m_shape;
+
+ // output
+ DnDShape::Kind m_shapeKind;
+ wxPoint m_pos;
+ wxSize m_size;
+ wxColour m_col;
+
+ // controls
+ wxRadioBox *m_radio;
+ wxTextCtrl *m_textX,
+ *m_textY,
+ *m_textW,
+ *m_textH;
+
+ DECLARE_EVENT_TABLE()
+};
+
+// ----------------------------------------------------------------------------
+// A frame for the shapes which can be drag-and-dropped between frames
+// ----------------------------------------------------------------------------
+
+class DnDShapeFrame : public wxFrame
+{
+public:
+ DnDShapeFrame(wxFrame *parent);
+ ~DnDShapeFrame();
+
+ void SetShape(DnDShape *shape);
+
+ // callbacks
+ void OnNewShape(wxCommandEvent& event);
+ void OnEditShape(wxCommandEvent& event);
+ void OnClearShape(wxCommandEvent& event);
+
+ void OnCopyShape(wxCommandEvent& event);
+ void OnPasteShape(wxCommandEvent& event);
+
+ void OnUpdateUICopy(wxUpdateUIEvent& event);
+ void OnUpdateUIPaste(wxUpdateUIEvent& event);
+
+ void OnDrag(wxMouseEvent& event);
+ void OnPaint(wxPaintEvent& event);
+ void OnDrop(wxCoord x, wxCoord y, DnDShape *shape);
+
+private:
+ DnDShape *m_shape;
+
+ static DnDShapeFrame *ms_lastDropTarget;
+
+ DECLARE_EVENT_TABLE()
+};
+
+// ----------------------------------------------------------------------------
+// wxDropTarget derivation for DnDShapes
+// ----------------------------------------------------------------------------
+
+class DnDShapeDropTarget : public wxDropTarget
+{
+public:
+ DnDShapeDropTarget(DnDShapeFrame *frame)
+ : wxDropTarget(new DnDShapeDataObject)
+ {
+ m_frame = frame;
+ }
+
+ // override base class (pure) virtuals
+ virtual wxDragResult OnEnter(wxCoord x, wxCoord y, wxDragResult def)
+ { m_frame->SetStatusText(_T("Mouse entered the frame")); return OnDragOver(x, y, def); }
+ virtual void OnLeave()
+ { m_frame->SetStatusText(_T("Mouse left the frame")); }
+ virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def)
+ {
+ if ( !GetData() )
+ {
+ wxLogError(wxT("Failed to get drag and drop data"));
+
+ return wxDragNone;
+ }
+
+ m_frame->OnDrop(x, y,
+ ((DnDShapeDataObject *)GetDataObject())->GetShape());
+
+ return def;
+ }
+
+private:
+ DnDShapeFrame *m_frame;
+};
+
+// ----------------------------------------------------------------------------
+// functions prototypes
+// ----------------------------------------------------------------------------
+
+static void ShowBitmap(const wxBitmap& bitmap);
+
+#ifdef USE_METAFILES
+static void ShowMetaFile(const wxMetaFile& metafile);
+#endif // USE_METAFILES
+
+// ----------------------------------------------------------------------------
+// IDs for the menu commands
+// ----------------------------------------------------------------------------
+
+enum
+{
+ Menu_Quit = 1,
+ Menu_Drag,
+ Menu_DragMoveDef,
+ Menu_DragMoveAllow,
+ Menu_NewFrame,
+ Menu_About = 101,
+ Menu_Help,
+ Menu_Clear,
+ Menu_Copy,
+ Menu_Paste,
+ Menu_CopyBitmap,
+ Menu_PasteBitmap,
+ Menu_PasteMFile,
+ Menu_CopyFiles,
+ Menu_Shape_New = 500,
+ Menu_Shape_Edit,
+ Menu_Shape_Clear,
+ Menu_ShapeClipboard_Copy,
+ Menu_ShapeClipboard_Paste,
+ Button_Colour = 1001
+};
+
+BEGIN_EVENT_TABLE(DnDFrame, wxFrame)
+ EVT_MENU(Menu_Quit, DnDFrame::OnQuit)
+ EVT_MENU(Menu_About, DnDFrame::OnAbout)
+ EVT_MENU(Menu_Drag, DnDFrame::OnDrag)
+ EVT_MENU(Menu_DragMoveDef, DnDFrame::OnDragMoveByDefault)
+ EVT_MENU(Menu_DragMoveAllow,DnDFrame::OnDragMoveAllow)
+ EVT_MENU(Menu_NewFrame, DnDFrame::OnNewFrame)
+ EVT_MENU(Menu_Help, DnDFrame::OnHelp)
+ EVT_MENU(Menu_Clear, DnDFrame::OnLogClear)
+ EVT_MENU(Menu_Copy, DnDFrame::OnCopy)
+ EVT_MENU(Menu_Paste, DnDFrame::OnPaste)
+ EVT_MENU(Menu_CopyBitmap, DnDFrame::OnCopyBitmap)
+ EVT_MENU(Menu_PasteBitmap,DnDFrame::OnPasteBitmap)
+#ifdef USE_METAFILES
+ EVT_MENU(Menu_PasteMFile, DnDFrame::OnPasteMetafile)
+#endif // USE_METAFILES
+ EVT_MENU(Menu_CopyFiles, DnDFrame::OnCopyFiles)
+
+ EVT_UPDATE_UI(Menu_DragMoveDef, DnDFrame::OnUpdateUIMoveByDefault)
+
+ EVT_UPDATE_UI(Menu_Paste, DnDFrame::OnUpdateUIPasteText)
+ EVT_UPDATE_UI(Menu_PasteBitmap, DnDFrame::OnUpdateUIPasteBitmap)
+
+ EVT_LEFT_DOWN( DnDFrame::OnLeftDown)
+ EVT_RIGHT_DOWN( DnDFrame::OnRightDown)
+ EVT_PAINT( DnDFrame::OnPaint)
+ EVT_SIZE( DnDFrame::OnSize)
+END_EVENT_TABLE()
+
+BEGIN_EVENT_TABLE(DnDShapeFrame, wxFrame)
+ EVT_MENU(Menu_Shape_New, DnDShapeFrame::OnNewShape)
+ EVT_MENU(Menu_Shape_Edit, DnDShapeFrame::OnEditShape)
+ EVT_MENU(Menu_Shape_Clear, DnDShapeFrame::OnClearShape)
+
+ EVT_MENU(Menu_ShapeClipboard_Copy, DnDShapeFrame::OnCopyShape)
+ EVT_MENU(Menu_ShapeClipboard_Paste, DnDShapeFrame::OnPasteShape)
+
+ EVT_UPDATE_UI(Menu_ShapeClipboard_Copy, DnDShapeFrame::OnUpdateUICopy)
+ EVT_UPDATE_UI(Menu_ShapeClipboard_Paste, DnDShapeFrame::OnUpdateUIPaste)
+
+ EVT_LEFT_DOWN(DnDShapeFrame::OnDrag)
+
+ EVT_PAINT(DnDShapeFrame::OnPaint)
+END_EVENT_TABLE()
+
+BEGIN_EVENT_TABLE(DnDShapeDialog, wxDialog)
+ EVT_BUTTON(Button_Colour, DnDShapeDialog::OnColour)
+END_EVENT_TABLE()
+
+BEGIN_EVENT_TABLE(DnDCanvasBitmap, wxScrolledWindow)
+ EVT_PAINT(DnDCanvasBitmap::OnPaint)
+END_EVENT_TABLE()
+
+#ifdef USE_METAFILES
+BEGIN_EVENT_TABLE(DnDCanvasMetafile, wxScrolledWindow)
+ EVT_PAINT(DnDCanvasMetafile::OnPaint)
+END_EVENT_TABLE()
+#endif // USE_METAFILES
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// `Main program' equivalent, creating windows and returning main app frame
+bool DnDApp::OnInit()
+{
+#if USE_RESOURCES
+ // load our ressources
+ wxPathList pathList;
+ pathList.Add(_T("."));
+#ifdef __WXMSW__
+ pathList.Add(_T("./Debug"));
+ pathList.Add(_T("./Release"));
+#endif // wxMSW
+
+ wxString path = pathList.FindValidPath(_T("dnd.wxr"));
+ if ( !path )
+ {
+ wxLogError(wxT("Can't find the resource file dnd.wxr in the current ")
+ wxT("directory, aborting."));
+
+ return FALSE;
+ }
+
+ wxDefaultResourceTable->ParseResourceFile(path);
+#endif
+
+ // switch on trace messages
+#if defined(__WXGTK__)
+ wxLog::AddTraceMask(_T("clipboard"));
+#elif defined(__WXMSW__)
+ wxLog::AddTraceMask(wxTRACE_OleCalls);
+#endif
+
+#if wxUSE_LIBPNG
+ wxImage::AddHandler( new wxPNGHandler );
+#endif
+
+ // under X we usually want to use the primary selection by default (which
+ // is shared with other apps)
+ wxTheClipboard->UsePrimarySelection();
+
+ // create the main frame window
+ DnDFrame *frame = new DnDFrame((wxFrame *) NULL,
+ _T("Drag-and-Drop/Clipboard wxWindows Sample"),
+ 10, 100, 650, 340);
+
+ // activate it
+ frame->Show(TRUE);
+
+ SetTopWindow(frame);
+
+ return TRUE;
+}
+
+DnDFrame::DnDFrame(wxFrame *frame, wxChar *title, int x, int y, int w, int h)
+ : wxFrame(frame, -1, title, wxPoint(x, y), wxSize(w, h)),
+ m_strText(_T("wxWindows drag & drop works :-)"))
+
+{
+ // frame icon and status bar
+ SetIcon(wxICON(mondrian));
+
+ CreateStatusBar();
+
+ // construct menu
+ wxMenu *file_menu = new wxMenu;
+ file_menu->Append(Menu_Drag, _T("&Test drag..."));
+ file_menu->AppendCheckItem(Menu_DragMoveDef, _T("&Move by default"));
+ file_menu->AppendCheckItem(Menu_DragMoveAllow, _T("&Allow moving"));
+ file_menu->AppendSeparator();
+ file_menu->Append(Menu_NewFrame, _T("&New frame\tCtrl-N"));
+ file_menu->AppendSeparator();
+ file_menu->Append(Menu_Quit, _T("E&xit\tCtrl-Q"));
+
+ wxMenu *log_menu = new wxMenu;
+ log_menu->Append(Menu_Clear, _T("Clear\tCtrl-L"));
+
+ wxMenu *help_menu = new wxMenu;
+ help_menu->Append(Menu_Help, _T("&Help..."));
+ help_menu->AppendSeparator();
+ help_menu->Append(Menu_About, _T("&About"));
+
+ wxMenu *clip_menu = new wxMenu;
+ clip_menu->Append(Menu_Copy, _T("&Copy text\tCtrl-C"));
+ clip_menu->Append(Menu_Paste, _T("&Paste text\tCtrl-V"));
+ clip_menu->AppendSeparator();
+ clip_menu->Append(Menu_CopyBitmap, _T("Copy &bitmap\tCtrl-Shift-C"));
+ clip_menu->Append(Menu_PasteBitmap, _T("Paste b&itmap\tCtrl-Shift-V"));
+#ifdef USE_METAFILES
+ clip_menu->AppendSeparator();
+ clip_menu->Append(Menu_PasteMFile, _T("Paste &metafile\tCtrl-M"));
+#endif // USE_METAFILES
+ clip_menu->AppendSeparator();
+ clip_menu->Append(Menu_CopyFiles, _T("Copy &files\tCtrl-F"));
+
+ wxMenuBar *menu_bar = new wxMenuBar;
+ menu_bar->Append(file_menu, _T("&File"));
+ menu_bar->Append(log_menu, _T("&Log"));
+ menu_bar->Append(clip_menu, _T("&Clipboard"));
+ menu_bar->Append(help_menu, _T("&Help"));
+
+ SetMenuBar(menu_bar);
+
+ // make a panel with 3 subwindows
+ wxPoint pos(0, 0);
+ wxSize size(400, 200);
+
+ wxString strFile(_T("Drop files here!")), strText(_T("Drop text on me"));
+
+ m_ctrlFile = new wxListBox(this, -1, pos, size, 1, &strFile,
+ wxLB_HSCROLL | wxLB_ALWAYS_SB );
+ m_ctrlText = new wxListBox(this, -1, pos, size, 1, &strText,
+ wxLB_HSCROLL | wxLB_ALWAYS_SB );
+
+ m_ctrlLog = new wxTextCtrl(this, -1, _T(""), pos, size,
+ wxTE_MULTILINE | wxTE_READONLY |
+ wxSUNKEN_BORDER );
+
+ // redirect log messages to the text window
+ m_pLog = new wxLogTextCtrl(m_ctrlLog);
+ m_pLogPrev = wxLog::SetActiveTarget(m_pLog);
+
+ // associate drop targets with the controls
+ m_ctrlFile->SetDropTarget(new DnDFile(m_ctrlFile));
+ m_ctrlText->SetDropTarget(new DnDText(m_ctrlText));
+ m_ctrlLog->SetDropTarget(new URLDropTarget);
+
+ wxLayoutConstraints *c;
+
+ // Top-left listbox
+ c = new wxLayoutConstraints;
+ c->left.SameAs(this, wxLeft);
+ c->top.SameAs(this, wxTop);
+ c->right.PercentOf(this, wxRight, 50);
+ c->height.PercentOf(this, wxHeight, 30);
+ m_ctrlFile->SetConstraints(c);
+
+ // Top-right listbox
+ c = new wxLayoutConstraints;
+ c->left.SameAs (m_ctrlFile, wxRight);
+ c->top.SameAs (this, wxTop);
+ c->right.SameAs (this, wxRight);
+ c->height.PercentOf(this, wxHeight, 30);
+ m_ctrlText->SetConstraints(c);
+
+ // Lower text control
+ c = new wxLayoutConstraints;
+ c->left.SameAs (this, wxLeft);
+ c->right.SameAs (this, wxRight);
+ c->height.PercentOf(this, wxHeight, 50);
+ c->top.SameAs(m_ctrlText, wxBottom);
+ m_ctrlLog->SetConstraints(c);
+
+ SetAutoLayout(TRUE);
+
+ // copy data by default but allow moving it as well
+ m_moveByDefault = FALSE;
+ m_moveAllow = TRUE;
+ menu_bar->Check(Menu_DragMoveAllow, TRUE);
+}
+
+void DnDFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
+{
+ Close(TRUE);
+}
+
+void DnDFrame::OnSize(wxSizeEvent& event)
+{
+ Refresh();
+
+ event.Skip();
+}
+
+void DnDFrame::OnPaint(wxPaintEvent& WXUNUSED(event))
+{
+ int w = 0;
+ int h = 0;
+ GetClientSize( &w, &h );
+
+ wxPaintDC dc(this);
+ // dc.Clear(); -- this kills wxGTK
+ dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL, FALSE, _T("charter") ) );
+ dc.DrawText( _T("Drag text from here!"), 100, h-50 );
+}
+
+void DnDFrame::OnUpdateUIMoveByDefault(wxUpdateUIEvent& event)
+{
+ // only can move by default if moving is allowed at all
+ event.Enable(m_moveAllow);
+}
+
+void DnDFrame::OnUpdateUIPasteText(wxUpdateUIEvent& event)
+{
+#ifdef __WXDEBUG__
+ // too many trace messages if we don't do it - this function is called
+ // very often
+ wxLogNull nolog;
+#endif
+
+ event.Enable( wxTheClipboard->IsSupported(wxDF_TEXT) );
+}
+
+void DnDFrame::OnUpdateUIPasteBitmap(wxUpdateUIEvent& event)
+{
+#ifdef __WXDEBUG__
+ // too many trace messages if we don't do it - this function is called
+ // very often
+ wxLogNull nolog;
+#endif
+
+ event.Enable( wxTheClipboard->IsSupported(wxDF_BITMAP) );
+}
+
+void DnDFrame::OnNewFrame(wxCommandEvent& WXUNUSED(event))
+{
+ (new DnDShapeFrame(this))->Show(TRUE);
+
+ wxLogStatus(this, wxT("Double click the new frame to select a shape for it"));
+}
+
+void DnDFrame::OnDrag(wxCommandEvent& WXUNUSED(event))
+{
+ wxString strText = wxGetTextFromUser
+ (
+ _T("After you enter text in this dialog, press any mouse\n")
+ _T("button in the bottom (empty) part of the frame and \n")
+ _T("drag it anywhere - you will be in fact dragging the\n")
+ _T("text object containing this text"),
+ _T("Please enter some text"), m_strText, this
+ );
+
+ m_strText = strText;
+}
+
+void DnDFrame::OnDragMoveByDefault(wxCommandEvent& event)
+{
+ m_moveByDefault = event.IsChecked();
+}
+
+void DnDFrame::OnDragMoveAllow(wxCommandEvent& event)
+{
+ m_moveAllow = event.IsChecked();
+}
+
+void DnDFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
+{
+ wxMessageBox(_T("Drag-&-Drop Demo\n")
+ _T("Please see \"Help|Help...\" for details\n")
+ _T("Copyright (c) 1998 Vadim Zeitlin"),
+ _T("About wxDnD"),
+ wxICON_INFORMATION | wxOK,
+ this);
+}
+
+void DnDFrame::OnHelp(wxCommandEvent& /* event */)
+{
+ wxMessageDialog dialog(this,
+ _T("This small program demonstrates drag & drop support in wxWindows. The program window\n")
+ _T("consists of 3 parts: the bottom pane is for debug messages, so that you can see what's\n")
+ _T("going on inside. The top part is split into 2 listboxes, the left one accepts files\n")
+ _T("and the right one accepts text.\n")
+ _T("\n")
+ _T("To test wxDropTarget: open wordpad (write.exe), select some text in it and drag it to\n")
+ _T("the right listbox (you'll notice the usual visual feedback, i.e. the cursor will change).\n")
+ _T("Also, try dragging some files (you can select several at once) from Windows Explorer (or \n")
+ _T("File Manager) to the left pane. Hold down Ctrl/Shift keys when you drop text (doesn't \n")
+ _T("work with files) and see what changes.\n")
+ _T("\n")
+ _T("To test wxDropSource: just press any mouse button on the empty zone of the window and drag\n")
+ _T("it to wordpad or any other droptarget accepting text (and of course you can just drag it\n")
+ _T("to the right pane). Due to a lot of trace messages, the cursor might take some time to \n")
+ _T("change, don't release the mouse button until it does. You can change the string being\n")
+ _T("dragged in in \"File|Test drag...\" dialog.\n")
+ _T("\n")
+ _T("\n")
+ _T("Please send all questions/bug reports/suggestions &c to \n")
+ _T("Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>"),
+ _T("wxDnD Help"));
+
+ dialog.ShowModal();
+}
+
+void DnDFrame::OnLogClear(wxCommandEvent& /* event */ )
+{
+ m_ctrlLog->Clear();
+ m_ctrlText->Clear();
+ m_ctrlFile->Clear();
+}
+
+void DnDFrame::OnLeftDown(wxMouseEvent &WXUNUSED(event) )
+{
+ if ( !m_strText.IsEmpty() )
+ {
+ // start drag operation
+ wxTextDataObject textData(m_strText);
+/*
+ wxFileDataObject textData;
+ textData.AddFile( "/file1.txt" );
+ textData.AddFile( "/file2.txt" );
+*/
+ wxDropSource source(textData, this,
+ wxDROP_ICON(dnd_copy),
+ wxDROP_ICON(dnd_move),
+ wxDROP_ICON(dnd_none));
+
+ int flags = 0;
+ if ( m_moveByDefault )
+ flags |= wxDrag_DefaultMove;
+ else if ( m_moveAllow )
+ flags |= wxDrag_AllowMove;
+
+ const wxChar *pc;
+ switch ( source.DoDragDrop(flags) )
+ {
+ case wxDragError: pc = _T("Error!"); break;
+ case wxDragNone: pc = _T("Nothing"); break;
+ case wxDragCopy: pc = _T("Copied"); break;
+ case wxDragMove: pc = _T("Moved"); break;
+ case wxDragCancel: pc = _T("Cancelled"); break;
+ default: pc = _T("Huh?"); break;
+ }
+
+ SetStatusText(wxString(_T("Drag result: ")) + pc);
+ }
+}
+
+void DnDFrame::OnRightDown(wxMouseEvent &event )
+{
+ wxMenu menu(_T("Dnd sample menu"));
+
+ menu.Append(Menu_Drag, _T("&Test drag..."));
+ menu.AppendSeparator();
+ menu.Append(Menu_About, _T("&About"));
+
+ PopupMenu( &menu, event.GetX(), event.GetY() );
+}
+
+DnDFrame::~DnDFrame()
+{
+ if ( m_pLog != NULL ) {
+ if ( wxLog::SetActiveTarget(m_pLogPrev) == m_pLog )
+ delete m_pLog;
+ }
+}
+
+// ---------------------------------------------------------------------------
+// bitmap clipboard
+// ---------------------------------------------------------------------------
+
+void DnDFrame::OnCopyBitmap(wxCommandEvent& WXUNUSED(event))
+{
+ // PNG support is not always compiled in under Windows, so use BMP there
+#ifdef __WXMSW__
+ wxFileDialog dialog(this, _T("Open a BMP file"), _T(""), _T(""), _T("BMP files (*.bmp)|*.bmp"), 0);
+#else
+ wxFileDialog dialog(this, _T("Open a PNG file"), _T(""), _T(""), _T("PNG files (*.png)|*.png"), 0);
+#endif
+
+ if (dialog.ShowModal() != wxID_OK)
+ {
+ wxLogMessage( _T("Aborted file open") );
+ return;
+ }
+
+ if (dialog.GetPath().IsEmpty())
+ {
+ wxLogMessage( _T("Returned empty string.") );
+ return;
+ }
+
+ if (!wxFileExists(dialog.GetPath()))
+ {
+ wxLogMessage( _T("File doesn't exist.") );
+ return;
+ }
+
+ wxImage image;
+ image.LoadFile( dialog.GetPath(),
+#ifdef __WXMSW__
+ wxBITMAP_TYPE_BMP
+#else
+ wxBITMAP_TYPE_PNG
+#endif
+ );
+ if (!image.Ok())
+ {
+ wxLogError( _T("Invalid image file...") );
+ return;
+ }
+
+ wxLogStatus( _T("Decoding image file...") );
+ wxYield();
+
+ wxBitmap bitmap( image );
+
+ if ( !wxTheClipboard->Open() )
+ {
+ wxLogError(_T("Can't open clipboard."));
+
+ return;
+ }
+
+ wxLogMessage( _T("Creating wxBitmapDataObject...") );
+ wxYield();
+
+ if ( !wxTheClipboard->AddData(new wxBitmapDataObject(bitmap)) )
+ {
+ wxLogError(_T("Can't copy image to the clipboard."));
+ }
+ else
+ {
+ wxLogMessage(_T("Image has been put on the clipboard.") );
+ wxLogMessage(_T("You can paste it now and look at it.") );
+ }
+
+ wxTheClipboard->Close();
+}
+
+void DnDFrame::OnPasteBitmap(wxCommandEvent& WXUNUSED(event))
+{
+ if ( !wxTheClipboard->Open() )
+ {
+ wxLogError(_T("Can't open clipboard."));
+
+ return;
+ }
+
+ if ( !wxTheClipboard->IsSupported(wxDF_BITMAP) )
+ {
+ wxLogWarning(_T("No bitmap on clipboard"));
+
+ wxTheClipboard->Close();
+ return;
+ }
+
+ wxBitmapDataObject data;
+ if ( !wxTheClipboard->GetData(data) )
+ {
+ wxLogError(_T("Can't paste bitmap from the clipboard"));
+ }
+ else
+ {
+ const wxBitmap& bmp = data.GetBitmap();
+
+ wxLogMessage(_T("Bitmap %dx%d pasted from the clipboard"),
+ bmp.GetWidth(), bmp.GetHeight());
+ ShowBitmap(bmp);
+ }
+
+ wxTheClipboard->Close();
+}
+
+#ifdef USE_METAFILES
+
+void DnDFrame::OnPasteMetafile(wxCommandEvent& WXUNUSED(event))
+{
+ if ( !wxTheClipboard->Open() )
+ {
+ wxLogError(_T("Can't open clipboard."));
+
+ return;
+ }
+
+ if ( !wxTheClipboard->IsSupported(wxDF_METAFILE) )
+ {
+ wxLogWarning(_T("No metafile on clipboard"));
+ }
+ else
+ {
+ wxMetaFileDataObject data;
+ if ( !wxTheClipboard->GetData(data) )
+ {
+ wxLogError(_T("Can't paste metafile from the clipboard"));
+ }
+ else
+ {
+ const wxMetaFile& mf = data.GetMetafile();
+
+ wxLogMessage(_T("Metafile %dx%d pasted from the clipboard"),
+ mf.GetWidth(), mf.GetHeight());
+
+ ShowMetaFile(mf);
+ }
+ }
+
+ wxTheClipboard->Close();
+}
+
+#endif // USE_METAFILES
+
+// ----------------------------------------------------------------------------
+// file clipboard
+// ----------------------------------------------------------------------------
+
+void DnDFrame::OnCopyFiles(wxCommandEvent& WXUNUSED(event))
+{
+#ifdef __WXMSW__
+ wxFileDialog dialog(this, _T("Select a file to copy"), _T(""), _T(""),
+ _T("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 ? wxT("") : wxT("s"));
+ }
+ }
+ }
+ else
+ {
+ wxLogStatus(this, wxT("Aborted"));
+ }
+#else // !MSW
+ wxLogError(wxT("Sorry, not implemented"));
+#endif // MSW/!MSW
+}
+
+// ---------------------------------------------------------------------------
+// text clipboard
+// ---------------------------------------------------------------------------
+
+void DnDFrame::OnCopy(wxCommandEvent& WXUNUSED(event))
+{
+ if ( !wxTheClipboard->Open() )
+ {
+ wxLogError(_T("Can't open clipboard."));
+
+ return;
+ }
+
+ if ( !wxTheClipboard->AddData(new wxTextDataObject(m_strText)) )
+ {
+ wxLogError(_T("Can't copy data to the clipboard"));
+ }
+ else
+ {
+ wxLogMessage(_T("Text '%s' put on the clipboard"), m_strText.c_str());
+ }
+
+ wxTheClipboard->Close();
+}
+
+void DnDFrame::OnPaste(wxCommandEvent& WXUNUSED(event))
+{
+ if ( !wxTheClipboard->Open() )
+ {
+ wxLogError(_T("Can't open clipboard."));
+
+ return;
+ }
+
+ if ( !wxTheClipboard->IsSupported(wxDF_TEXT) )
+ {
+ wxLogWarning(_T("No text data on clipboard"));
+
+ wxTheClipboard->Close();
+ return;
+ }
+
+ wxTextDataObject text;
+ if ( !wxTheClipboard->GetData(text) )
+ {
+ wxLogError(_T("Can't paste data from the clipboard"));
+ }
+ else
+ {
+ wxLogMessage(_T("Text '%s' pasted from the clipboard"),
+ text.GetText().c_str());
projects / wxWidgets.git / blobdiff