// file names) we drop on them
// ----------------------------------------------------------------------------
-typedef long wxDropPointCoord;
-
class DnDText : public wxTextDropTarget
{
public:
DnDText(wxListBox *pOwner) { m_pOwner = pOwner; }
- virtual bool OnDropText(wxDropPointCoord x, wxDropPointCoord y,
- const wxChar* psz);
+ virtual bool OnDropText(wxCoord x, wxCoord y, const wxString& text);
private:
wxListBox *m_pOwner;
public:
DnDFile(wxListBox *pOwner) { m_pOwner = pOwner; }
- virtual bool OnDropFiles(wxDropPointCoord x, wxDropPointCoord y,
- size_t nFiles, const wxChar* const aszFiles[] );
+ virtual bool OnDropFiles(wxCoord x, wxCoord y,
+ const wxArrayString& filenames);
private:
wxListBox *m_pOwner;
void OnNewFrame(wxCommandEvent& event);
void OnHelp (wxCommandEvent& event);
void OnLogClear(wxCommandEvent& event);
+
void OnCopy(wxCommandEvent& event);
void OnPaste(wxCommandEvent& event);
+
void OnCopyBitmap(wxCommandEvent& event);
void OnPasteBitmap(wxCommandEvent& event);
+ void OnCopyFiles(wxCommandEvent& event);
+
void OnLeftDown(wxMouseEvent& event);
void OnRightDown(wxMouseEvent& event);
private:
wxListBox *m_ctrlFile,
- *m_ctrlText;
+ *m_ctrlText;
wxTextCtrl *m_ctrlLog;
- wxLog *m_pLog, *m_pLogPrev;
+ wxLog *m_pLog,
+ *m_pLogPrev;
wxString m_strText;
wxBitmap m_bitmap;
{
}
+ // this is for debugging - lets us see when exactly an object is freed
+ // (this may be later than you think if it's on the clipboard, for example)
+ virtual ~DnDShape() { }
+
// the functions used for drag-and-drop: they dump and restore a shape into
// some bitwise-copiable data (might use streams too...)
// ------------------------------------------------------------------------
// to implement in derived classes
virtual Kind GetKind() const = 0;
- virtual void Draw(wxDC& dc) = 0
+ virtual void Draw(wxDC& dc)
{
dc.SetPen(wxPen(m_col, 1, wxSOLID));
}
const wxColour& col)
: DnDShape(pos, size, col)
{
+ wxLogMessage("DnDTriangularShape is being created");
+ }
+
+ virtual ~DnDTriangularShape()
+ {
+ wxLogMessage("DnDTriangularShape is being deleted");
}
virtual Kind GetKind() const { return Triangle; }
dc.DrawLine(p2, p3);
dc.DrawLine(p3, p1);
+#ifdef __WXMSW__
dc.FloodFill(GetCentre(), m_col, wxFLOOD_BORDER);
+#endif
}
};
const wxColour& col)
: DnDShape(pos, size, col)
{
+ wxLogMessage("DnDRectangularShape is being created");
+ }
+
+ virtual ~DnDRectangularShape()
+ {
+ wxLogMessage("DnDRectangularShape is being deleted");
}
virtual Kind GetKind() const { return Rectangle; }
dc.DrawLine(p3, p4);
dc.DrawLine(p4, p1);
+#ifdef __WXMSW__
dc.FloodFill(GetCentre(), m_col, wxFLOOD_BORDER);
+#endif
}
};
const wxColour& col)
: DnDShape(pos, size, col)
{
+ wxLogMessage("DnDEllipticShape is being created");
+ }
+
+ virtual ~DnDEllipticShape()
+ {
+ wxLogMessage("DnDEllipticShape is being deleted");
}
virtual Kind GetKind() const { return Ellipse; }
dc.DrawEllipse(m_pos, m_size);
+#ifdef __WXMSW__
dc.FloodFill(GetCentre(), m_col, wxFLOOD_BORDER);
+#endif
}
};
public:
// ctor doesn't copy the pointer, so it shouldn't go away while this object
// is alive
- DnDShapeDataObject(DnDShape *shape)
+ DnDShapeDataObject(DnDShape *shape = (DnDShape *)NULL)
{
- m_shape = shape;
+ if ( shape )
+ {
+ // we need to copy the shape because the one we're handled may be
+ // deleted while it's still on the clipboard (for example) - and we
+ // reuse the serialisation methods here to copy it
+ void *buf = malloc(shape->DnDShape::GetDataSize());
+ shape->GetDataHere(buf);
+ m_shape = DnDShape::New(buf);
+
+ free(buf);
+ }
+ else
+ {
+ // nothing to copy
+ m_shape = NULL;
+ }
// this string should uniquely identify our format, but is otherwise
// arbitrary
m_hasBitmap = FALSE;
}
- // accessors
- DnDShape *GetShape() const { return m_shape; }
+ virtual ~DnDShapeDataObject() { delete m_shape; }
+
+ // after a call to this function, the shape is owned by the caller and it
+ // is responsible for deleting it!
+ //
+ // NB: a better solution would be to make DnDShapes ref counted and this
+ // is what should probably be done in a real life program, otherwise
+ // the ownership problems become too complicated really fast
+ DnDShape *GetShape()
+ {
+ DnDShape *shape = m_shape;
+
+ m_shape = (DnDShape *)NULL;
+ m_hasBitmap = FALSE;
+
+ return shape;
+ }
// implement base class pure virtuals
// ----------------------------------
- virtual wxDataFormat GetPreferredFormat() const
+ virtual wxDataFormat GetPreferredFormat(Direction WXUNUSED(dir)) const
{
return m_formatShape;
}
- virtual size_t GetFormatCount(bool outputOnlyToo) const
+ virtual size_t GetFormatCount(Direction dir) const
{
// our custom format is supported by both GetData() and SetData()
size_t nFormats = 1;
- if ( outputOnlyToo )
+ if ( dir == Get )
{
// but the bitmap format(s) are only supported for output
- nFormats += m_dataobj.GetFormatCount();
+ nFormats += m_dataobj.GetFormatCount(dir);
}
return nFormats;
}
- virtual void GetAllFormats(wxDataFormat *formats, bool outputOnlyToo) const
+ virtual void GetAllFormats(wxDataFormat *formats, Direction dir) const
{
formats[0] = m_formatShape;
- if ( outputOnlyToo )
+ if ( dir == Get )
{
- m_dataobj.GetAllFormats(&formats[1]);
+ m_dataobj.GetAllFormats(&formats[1], dir);
}
}
if ( !m_hasBitmap )
CreateBitmap();
- return m_dataobj.GetDataSize(format);
+ return m_dataobj.GetDataSize();
}
}
}
else
{
- wxASSERT_MSG( format == wxDF_BITMAP, "unsupported format" );
-
if ( !m_hasBitmap )
CreateBitmap();
- return m_dataobj.GetDataHere(format, pBuf);
+ return m_dataobj.GetDataHere(pBuf);
}
}
- virtual bool SetData(const wxDataFormat& format, const void *buf)
+ virtual bool SetData(const wxDataFormat& format,
+ size_t len, const void *buf)
{
wxCHECK_MSG( format == m_formatShape, FALSE, "unsupported format" );
void OnDrag(wxMouseEvent& event);
void OnPaint(wxPaintEvent& event);
- void OnDrop(long x, long y, DnDShape *shape);
+ void OnDrop(wxCoord x, wxCoord y, DnDShape *shape);
private:
DnDShape *m_shape;
{
public:
DnDShapeDropTarget(DnDShapeFrame *frame)
+ : wxDropTarget(new DnDShapeDataObject)
{
m_frame = frame;
-
- // the same as used by DnDShapeDataObject
- m_formatShape.SetId(shapeFormatId);
}
// override base class (pure) virtuals
- virtual void OnEnter()
- { m_frame->SetStatusText("Mouse entered the frame"); }
+ virtual wxDragResult OnEnter(wxCoord x, wxCoord y, wxDragResult def)
+ { m_frame->SetStatusText("Mouse entered the frame");
+ return OnDragOver(x, y, def); }
virtual void OnLeave()
{ m_frame->SetStatusText("Mouse left the frame"); }
- virtual bool OnDrop(long x, long y, const void *pData)
+ virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def)
{
- m_frame->OnDrop(x, y, DnDShape::New(pData));
+ if ( !GetData() )
+ {
+ wxLogError("Failed to get drag and drop data");
- return TRUE;
- }
+ return wxDragNone;
+ }
-protected:
- virtual size_t GetFormatCount() const { return 1; }
- virtual wxDataFormat GetFormat(size_t WXUNUSED(n)) const
- { return m_formatShape; }
+ m_frame->OnDrop(x, y,
+ ((DnDShapeDataObject *)GetDataObject())->GetShape());
+
+ return def;
+ }
private:
DnDShapeFrame *m_frame;
- wxDataFormat m_formatShape;
};
// ----------------------------------------------------------------------------
Menu_Paste,
Menu_CopyBitmap,
Menu_PasteBitmap,
- Menu_ToBeGreyed, /* for testing */
- Menu_ToBeDeleted, /* for testing */
+ Menu_CopyFiles,
Menu_Shape_New = 500,
Menu_Shape_Edit,
Menu_Shape_Clear,
EVT_MENU(Menu_Paste, DnDFrame::OnPaste)
EVT_MENU(Menu_CopyBitmap, DnDFrame::OnCopyBitmap)
EVT_MENU(Menu_PasteBitmap,DnDFrame::OnPasteBitmap)
+ EVT_MENU(Menu_CopyFiles, DnDFrame::OnCopyFiles)
EVT_UPDATE_UI(Menu_Paste, DnDFrame::OnUpdateUIPasteText)
EVT_UPDATE_UI(Menu_PasteBitmap, DnDFrame::OnUpdateUIPasteBitmap)
END_EVENT_TABLE()
BEGIN_EVENT_TABLE(DnDShapeDialog, wxDialog)
- EVT_BUTTON(Button_Colour, OnColour)
+ EVT_BUTTON(Button_Colour, DnDShapeDialog::OnColour)
END_EVENT_TABLE()
// ============================================================================
// `Main program' equivalent, creating windows and returning main app frame
bool DnDApp::OnInit()
{
+ // load our ressources
+ wxPathList pathList;
+ pathList.Add(".");
+#ifdef __WXMSW__
+ pathList.Add("./Debug");
+ pathList.Add("./Release");
+#endif // wxMSW
+
+ wxString path = pathList.FindValidPath("dnd.wxr");
+ if ( !path )
+ {
+ wxLogError("Can't find the resource file dnd.wxr in the current "
+ "directory, aborting.");
+
+ return FALSE;
+ }
+
+ wxDefaultResourceTable->ParseResourceFile(path);
+
+ // 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,
"Drag-and-Drop/Clipboard wxWindows Sample",
- 50, 50, 450, 340);
+ 10, 10, 450, 340);
// activate it
frame->Show(TRUE);
SetTopWindow(frame);
- wxDefaultResourceTable->ParseResourceFile("dnd.wxr");
-
return TRUE;
}
file_menu->Append(Menu_Quit, "E&xit");
wxMenu *log_menu = new wxMenu;
- log_menu->Append(Menu_Clear, "Clear\tDel");
+ log_menu->Append(Menu_Clear, "Clear\tCtrl-L");
wxMenu *help_menu = new wxMenu;
help_menu->Append(Menu_Help, "&Help...");
clip_menu->AppendSeparator();
clip_menu->Append(Menu_CopyBitmap, "&Copy bitmap\tAlt+C");
clip_menu->Append(Menu_PasteBitmap, "&Paste bitmap\tAlt+V");
+ clip_menu->AppendSeparator();
+ clip_menu->Append(Menu_CopyFiles, "&Copy files\tCtrl+F");
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, "&File");
wxTE_MULTILINE | wxTE_READONLY |
wxSUNKEN_BORDER );
- // redirect log messages to the text window and switch on OLE messages
- // logging
- wxLog::AddTraceMask(wxTRACE_OleCalls);
+ // redirect log messages to the text window
m_pLog = new wxLogTextCtrl(m_ctrlLog);
m_pLogPrev = wxLog::SetActiveTarget(m_pLog);
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::OnLogClear(wxCommandEvent& /* event */ )
{
m_ctrlLog->Clear();
+ m_ctrlText->Clear();
+ m_ctrlFile->Clear();
}
void DnDFrame::OnLeftDown(wxMouseEvent &WXUNUSED(event) )
{
// start drag operation
wxTextDataObject textData(m_strText);
- wxDropSource source(textData, this, wxICON(mondrian));
+/*
+ wxFileDataObject textData;
+ textData.AddFile( "/file1.txt" );
+ textData.AddFile( "/file2.txt" );
+*/
+ wxDropSource source(textData, this
+
+#ifdef __WXMSW__
+ ,wxCURSOR_PENCIL, // for copy
+ wxCURSOR_SPRAYCAN, // for move
+ wxCURSOR_QUESTION_ARROW // for nothing
+#endif
+ );
const char *pc;
void DnDFrame::OnRightDown(wxMouseEvent &event )
{
- wxMenu *menu = new wxMenu;
-
- menu->Append(Menu_Drag, "&Test drag...");
- menu->Append(Menu_About, "&About");
- menu->Append(Menu_Quit, "E&xit");
- menu->Append(Menu_ToBeDeleted, "To be deleted");
- menu->Append(Menu_ToBeGreyed, "To be greyed");
+ wxMenu menu("Dnd sample menu");
- menu->Delete( Menu_ToBeDeleted );
- menu->Enable( Menu_ToBeGreyed, FALSE );
+ menu.Append(Menu_Drag, "&Test drag...");
+ menu.AppendSeparator();
+ menu.Append(Menu_About, "&About");
- PopupMenu( menu, event.GetX(), event.GetY() );
+ PopupMenu( &menu, event.GetX(), event.GetY() );
}
DnDFrame::~DnDFrame()
}
wxBitmapDataObject data;
- if ( !wxTheClipboard->GetData(&data) )
+ if ( !wxTheClipboard->GetData(data) )
{
wxLogError(_T("Can't paste bitmap from the clipboard"));
}
wxTheClipboard->Close();
}
+// ----------------------------------------------------------------------------
+// file clipboard
+// ----------------------------------------------------------------------------
+
+void DnDFrame::OnCopyFiles(wxCommandEvent& WXUNUSED(event))
+{
+#ifdef __WXMSW__
+ wxFileDialog dialog(this, "Select a file to copy", "", "",
+ "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("Can't open clipboard");
+ }
+ else
+ {
+ if ( !wxTheClipboard->AddData(dobj) )
+ {
+ wxLogError("Can't copy file(s) to the clipboard");
+ }
+ else
+ {
+ wxLogStatus(this, "%d file%s copied to the clipboard",
+ count, count == 1 ? "" : "s");
+ }
+ }
+ }
+ else
+ {
+ wxLogStatus(this, "Aborted");
+ }
+#else // !MSW
+ wxLogError("Sorry, not implemented");
+#endif // MSW/!MSW
+}
+
// ---------------------------------------------------------------------------
// text clipboard
// ---------------------------------------------------------------------------
}
wxTextDataObject text;
- if ( !wxTheClipboard->GetData(&text) )
+ if ( !wxTheClipboard->GetData(text) )
{
wxLogError(_T("Can't paste data from the clipboard"));
}
// Notifications called by the base class
// ----------------------------------------------------------------------------
-bool DnDText::OnDropText( wxDropPointCoord, wxDropPointCoord, const wxChar *psz )
+bool DnDText::OnDropText(wxCoord, wxCoord, const wxString& text)
{
- m_pOwner->Append(psz);
+ m_pOwner->Append(text);
return TRUE;
}
-bool DnDFile::OnDropFiles( wxDropPointCoord, wxDropPointCoord, size_t nFiles,
- const wxChar* const aszFiles[])
+bool DnDFile::OnDropFiles(wxCoord, wxCoord, const wxArrayString& filenames)
{
+ size_t nFiles = filenames.GetCount();
wxString str;
str.Printf( _T("%d files dropped"), nFiles);
m_pOwner->Append(str);
for ( size_t n = 0; n < nFiles; n++ ) {
- m_pOwner->Append(aszFiles[n]);
+ m_pOwner->Append(filenames[n]);
}
return TRUE;
bool DnDShapeDialog::TransferDataToWindow()
{
+
if ( m_shape )
{
m_radio->SetSelection(m_shape->GetKind());
: wxFrame(parent, -1, "Shape Frame",
wxDefaultPosition, wxSize(250, 150))
{
- SetBackgroundColour(*wxWHITE);
-
CreateStatusBar();
wxMenu *menuShape = new wxMenu;
SetDropTarget(new DnDShapeDropTarget(this));
m_shape = NULL;
+
+ SetBackgroundColour(*wxWHITE);
}
DnDShapeFrame::~DnDShapeFrame()
{
- delete m_shape;
+ if (m_shape)
+ delete m_shape;
}
void DnDShapeFrame::SetShape(DnDShape *shape)
{
- delete m_shape;
+ if (m_shape)
+ delete m_shape;
m_shape = shape;
Refresh();
}
// start drag operation
DnDShapeDataObject shapeData(m_shape);
- wxDropSource source(shapeData, this, wxICON(mondrian));
+ wxDropSource source(shapeData, this);
const char *pc = NULL;
switch ( source.DoDragDrop(TRUE) )
//else: status text already set
}
+void DnDShapeFrame::OnDrop(wxCoord x, wxCoord y, DnDShape *shape)
+{
+ ms_lastDropTarget = this;
+
+ wxPoint pt(x, y);
+
+ wxString s;
+ s.Printf("Shape dropped at (%ld, %ld)", pt.x, pt.y);
+ SetStatusText(s);
+
+ shape->Move(pt);
+ SetShape(shape);
+}
+
void DnDShapeFrame::OnEditShape(wxCommandEvent& event)
{
DnDShapeDialog dlg(this, m_shape);
void DnDShapeFrame::OnCopyShape(wxCommandEvent& event)
{
if ( m_shape )
+ {
+ wxClipboardLocker clipLocker;
+ if ( !clipLocker )
+ {
+ wxLogError("Can't open the clipboard");
+
+ return;
+ }
+
wxTheClipboard->AddData(new DnDShapeDataObject(m_shape));
+ }
}
void DnDShapeFrame::OnPasteShape(wxCommandEvent& event)
{
+ wxClipboardLocker clipLocker;
+ if ( !clipLocker )
+ {
+ wxLogError("Can't open the clipboard");
+
+ return;
+ }
+
DnDShapeDataObject shapeDataObject(NULL);
- if ( wxTheClipboard->GetData(&shapeDataObject) )
+ if ( wxTheClipboard->GetData(shapeDataObject) )
{
SetShape(shapeDataObject.GetShape());
}
void DnDShapeFrame::OnPaint(wxPaintEvent& event)
{
if ( m_shape )
- m_shape->Draw(wxPaintDC(this));
+ {
+ wxPaintDC dc(this);
+
+ m_shape->Draw(dc);
+ }
else
+ {
event.Skip();
-}
-
-void DnDShapeFrame::OnDrop(long x, long y, DnDShape *shape)
-{
- ms_lastDropTarget = this;
-
- wxString s;
- s.Printf("Shape dropped at (%ld, %ld)", x, y);
- SetStatusText(s);
-
- shape->Move(ScreenToClient(wxPoint(x, y)));
- SetShape(shape);
+ }
}
// ----------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff