#error This sample requires drag and drop support in the library
#endif
+// under Windows we also support data transfer of metafiles as an extra bonus,
+// but they're not available under other platforms
+#ifdef __WINDOWS__
+ #define USE_METAFILES
+#endif // Windows
+
+#define USE_RESOURCES 0
+#if !wxUSE_RESOURCES
+#undef USE_RESOURCES
+#define USE_RESOURCES 0
+#endif
+
#include "wx/intl.h"
#include "wx/log.h"
#include "wx/image.h"
#include "wx/clipbrd.h"
#include "wx/colordlg.h"
-#include "wx/resource.h"
+#if USE_RESOURCES
+ #include "wx/resource.h"
+#else
+ #include "wx/sizer.h"
+#endif
+
+#ifdef USE_METAFILES
+ #include "wx/metafile.h"
+#endif // Windows
-#if defined(__WXGTK__) || defined(__WXMOTIF__)
+#if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__)
#include "mondrian.xpm"
+
+ #include "dnd_copy.xpm"
+ #include "dnd_move.xpm"
+ #include "dnd_none.xpm"
#endif
// ----------------------------------------------------------------------------
// 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;
};
+// ----------------------------------------------------------------------------
+// Define a custom dtop target accepting URLs
+// ----------------------------------------------------------------------------
+
+class URLDropTarget : public wxDropTarget
+{
+public:
+ URLDropTarget() { SetDataObject(new wxURLDataObject); }
+
+ void OnDropURL(wxCoord x, wxCoord y, const wxString& text)
+ {
+ // of course, a real program would do something more useful here...
+ wxMessageBox(text, _T("wxDnD sample: got URL"),
+ wxICON_INFORMATION | wxOK);
+ }
+
+ // URLs can't be moved, only copied
+ virtual wxDragResult OnDragOver(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
+ wxDragResult def)
+ {
+ return wxDragLink; // At least IE 5.x needs wxDragLink, the
+ // other browsers on MSW seem okay with it too.
+ }
+
+ // translate this to calls to OnDropURL() just for convenience
+ virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def)
+ {
+ if ( !GetData() )
+ return wxDragNone;
+
+ OnDropURL(x, y, ((wxURLDataObject *)m_dataObject)->GetURL());
+
+ return def;
+ }
+};
+
// ----------------------------------------------------------------------------
// Define a new application type
// ----------------------------------------------------------------------------
IMPLEMENT_APP(DnDApp);
+// ----------------------------------------------------------------------------
+// Define canvas class to show a bitmap
+// ----------------------------------------------------------------------------
+
+class DnDCanvasBitmap : public wxScrolledWindow
+{
+public:
+ DnDCanvasBitmap(wxWindow *parent) : wxScrolledWindow(parent) { }
+
+ void SetBitmap(const wxBitmap& bitmap)
+ {
+ m_bitmap = bitmap;
+
+ SetScrollbars(10, 10,
+ m_bitmap.GetWidth() / 10, m_bitmap.GetHeight() / 10);
+
+ Refresh();
+ }
+
+ void OnPaint(wxPaintEvent& event)
+ {
+ wxPaintDC dc(this);
+
+ if ( m_bitmap.Ok() )
+ {
+ PrepareDC(dc);
+
+ dc.DrawBitmap(m_bitmap, 0, 0);
+ }
+ }
+
+private:
+ wxBitmap m_bitmap;
+
+ DECLARE_EVENT_TABLE()
+};
+
+#ifdef USE_METAFILES
+
+// and the same thing fo metafiles
+class DnDCanvasMetafile : public wxScrolledWindow
+{
+public:
+ DnDCanvasMetafile(wxWindow *parent) : wxScrolledWindow(parent) { }
+
+ void SetMetafile(const wxMetafile& metafile)
+ {
+ m_metafile = metafile;
+
+ SetScrollbars(10, 10,
+ m_metafile.GetWidth() / 10, m_metafile.GetHeight() / 10);
+
+ Refresh();
+ }
+
+ void OnPaint(wxPaintEvent& event)
+ {
+ wxPaintDC dc(this);
+
+ if ( m_metafile.Ok() )
+ {
+ PrepareDC(dc);
+
+ m_metafile.Play(&dc);
+ }
+ }
+
+private:
+ wxMetafile m_metafile;
+
+ DECLARE_EVENT_TABLE()
+};
+
+#endif // USE_METAFILES
+
// ----------------------------------------------------------------------------
// Define a new frame type for the main frame
// ----------------------------------------------------------------------------
{
public:
DnDFrame(wxFrame *frame, char *title, int x, int y, int w, int h);
- ~DnDFrame();
+ virtual ~DnDFrame();
void OnPaint(wxPaintEvent& event);
- void OnQuit (wxCommandEvent& event);
+ void OnSize(wxSizeEvent& event);
+ void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
- void OnDrag (wxCommandEvent& event);
+ void OnDrag(wxCommandEvent& event);
+ void OnDragMoveByDefault(wxCommandEvent& event);
+ void OnDragMoveAllow(wxCommandEvent& event);
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);
+#ifdef USE_METAFILES
+ void OnPasteMetafile(wxCommandEvent& event);
+#endif // USE_METAFILES
+
+ void OnCopyFiles(wxCommandEvent& event);
+
void OnLeftDown(wxMouseEvent& event);
void OnRightDown(wxMouseEvent& event);
+ void OnUpdateUIMoveByDefault(wxUpdateUIEvent& event);
+
void OnUpdateUIPasteText(wxUpdateUIEvent& event);
void OnUpdateUIPasteBitmap(wxUpdateUIEvent& event);
DECLARE_EVENT_TABLE()
private:
+ // GUI controls
wxListBox *m_ctrlFile,
- *m_ctrlText;
+ *m_ctrlText;
wxTextCtrl *m_ctrlLog;
- wxLog *m_pLog, *m_pLogPrev;
+ wxLog *m_pLog,
+ *m_pLogPrev;
+ // move the text by default (or copy)?
+ bool m_moveByDefault;
+
+ // allow moving the text at all?
+ bool m_moveAllow;
+
+ // the text we drag
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...)
// ------------------------------------------------------------------------
}
protected:
+ //get a point 1 up and 1 left, otherwise the mid-point of a triangle is on the line
wxPoint GetCentre() const
- { return wxPoint(m_pos.x + m_size.x / 2, m_pos.y + m_size.y / 2); }
-
+ { return wxPoint(m_pos.x + m_size.x / 2 - 1, m_pos.y + m_size.y / 2 - 1); }
+
struct ShapeDump
{
int x, y, // position
const wxColour& col)
: DnDShape(pos, size, col)
{
+ wxLogMessage(wxT("DnDTriangularShape is being created"));
+ }
+
+ virtual ~DnDTriangularShape()
+ {
+ wxLogMessage(wxT("DnDTriangularShape is being deleted"));
}
virtual Kind GetKind() const { return Triangle; }
dc.DrawLine(p2, p3);
dc.DrawLine(p3, p1);
-#ifdef __WXMSW__
+ //works in multicolor modes; on GTK (at least) will fail in 16-bit color
+ dc.SetBrush(wxBrush(m_col, wxSOLID));
dc.FloodFill(GetCentre(), m_col, wxFLOOD_BORDER);
-#endif
}
};
const wxColour& col)
: DnDShape(pos, size, col)
{
+ wxLogMessage(wxT("DnDRectangularShape is being created"));
+ }
+
+ virtual ~DnDRectangularShape()
+ {
+ wxLogMessage(wxT("DnDRectangularShape is being deleted"));
}
virtual Kind GetKind() const { return Rectangle; }
dc.DrawLine(p3, p4);
dc.DrawLine(p4, p1);
-#ifdef __WXMSW__
+ dc.SetBrush(wxBrush(m_col, wxSOLID));
dc.FloodFill(GetCentre(), m_col, wxFLOOD_BORDER);
-#endif
}
};
const wxColour& col)
: DnDShape(pos, size, col)
{
+ wxLogMessage(wxT("DnDEllipticShape is being created"));
+ }
+
+ virtual ~DnDEllipticShape()
+ {
+ wxLogMessage(wxT("DnDEllipticShape is being deleted"));
}
virtual Kind GetKind() const { return Ellipse; }
dc.DrawEllipse(m_pos, m_size);
-#ifdef __WXMSW__
+ dc.SetBrush(wxBrush(m_col, wxSOLID));
dc.FloodFill(GetCentre(), m_col, wxFLOOD_BORDER);
-#endif
}
};
// A wxDataObject specialisation for the application-specific data
// ----------------------------------------------------------------------------
-static const char *shapeFormatId = "wxShape";
+static const wxChar *shapeFormatId = wxT("wxShape");
class DnDShapeDataObject : public wxDataObject
{
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
// we don't draw the shape to a bitmap until it's really needed (i.e.
// we're asked to do so)
m_hasBitmap = FALSE;
+#ifdef USE_METAFILES
+ m_hasMetaFile = FALSE;
+#endif // Windows
}
- // 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;
+#ifdef USE_METAFILES
+ m_hasMetaFile = FALSE;
+#endif // Windows
+
+ 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_dobjBitmap.GetFormatCount(dir);
+
+#ifdef USE_METAFILES
+ nFormats += m_dobjMetaFile.GetFormatCount(dir);
+#endif // Windows
}
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]);
+ // 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
}
}
{
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_dataobj.GetDataSize(format);
+ return m_dobjBitmap.GetDataSize();
}
}
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( format == wxDF_BITMAP, "unsupported format" );
+ wxASSERT_MSG( m_dobjBitmap.IsSupported(format),
+ wxT("unexpected format") );
if ( !m_hasBitmap )
CreateBitmap();
- return m_dataobj.GetDataHere(format, pBuf);
+ return m_dobjBitmap.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" );
+ 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_dataobj (also sets m_hasBitmap)
+ // 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_dataobj; // it handles bitmaps
- bool m_hasBitmap; // true if m_dataobj has valid bitmap
+ 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
};
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(wxT("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;
};
+// ----------------------------------------------------------------------------
+// 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
// ----------------------------------------------------------------------------
{
Menu_Quit = 1,
Menu_Drag,
+ Menu_DragMoveDef,
+ Menu_DragMoveAllow,
Menu_NewFrame,
Menu_About = 101,
Menu_Help,
Menu_Paste,
Menu_CopyBitmap,
Menu_PasteBitmap,
- Menu_ToBeGreyed, /* for testing */
- Menu_ToBeDeleted, /* for testing */
+ Menu_PasteMFile,
+ Menu_CopyFiles,
Menu_Shape_New = 500,
Menu_Shape_Edit,
Menu_Shape_Clear,
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_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)
END_EVENT_TABLE()
BEGIN_EVENT_TABLE(DnDShapeDialog, wxDialog)
- EVT_BUTTON(Button_Colour, OnColour)
+ 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(".");
+#ifdef __WXMSW__
+ pathList.Add("./Debug");
+ pathList.Add("./Release");
+#endif // wxMSW
+
+ wxString path = pathList.FindValidPath("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,
"Drag-and-Drop/Clipboard wxWindows Sample",
- 50, 50, 450, 340);
+ 10, 100, 650, 340);
// activate it
frame->Show(TRUE);
SetTopWindow(frame);
- wxDefaultResourceTable->ParseResourceFile("dnd.wxr");
-
return TRUE;
}
// construct menu
wxMenu *file_menu = new wxMenu;
file_menu->Append(Menu_Drag, "&Test drag...");
+ file_menu->AppendCheckItem(Menu_DragMoveDef, "&Move by default");
+ file_menu->AppendCheckItem(Menu_DragMoveAllow, "&Allow moving");
file_menu->AppendSeparator();
file_menu->Append(Menu_NewFrame, "&New frame\tCtrl-N");
file_menu->AppendSeparator();
- file_menu->Append(Menu_Quit, "E&xit");
+ file_menu->Append(Menu_Quit, "E&xit\tCtrl-Q");
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...");
help_menu->Append(Menu_About, "&About");
wxMenu *clip_menu = new wxMenu;
- clip_menu->Append(Menu_Copy, "&Copy text\tCtrl+C");
- clip_menu->Append(Menu_Paste, "&Paste text\tCtrl+V");
+ clip_menu->Append(Menu_Copy, "&Copy text\tCtrl-C");
+ clip_menu->Append(Menu_Paste, "&Paste text\tCtrl-V");
+ clip_menu->AppendSeparator();
+ clip_menu->Append(Menu_CopyBitmap, "Copy &bitmap\tCtrl-Shift-C");
+ clip_menu->Append(Menu_PasteBitmap, "Paste b&itmap\tCtrl-Shift-V");
+#ifdef USE_METAFILES
clip_menu->AppendSeparator();
- clip_menu->Append(Menu_CopyBitmap, "&Copy bitmap\tAlt+C");
- clip_menu->Append(Menu_PasteBitmap, "&Paste bitmap\tAlt+V");
+ clip_menu->Append(Menu_PasteMFile, "Paste &metafile\tCtrl-M");
+#endif // USE_METAFILES
+ 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 );
-#ifdef __WXMSW__
- // redirect log messages to the text window and switch on OLE messages
- // logging
- wxLog::AddTraceMask(wxTRACE_OleCalls);
-#endif
+ // redirect log messages to the text window
m_pLog = new wxLogTextCtrl(m_ctrlLog);
m_pLogPrev = wxLog::SetActiveTarget(m_pLog);
- // associate drop targets with 2 text controls
+ // 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;
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;
GetClientSize( &w, &h );
wxPaintDC dc(this);
+ // dc.Clear(); -- this kills wxGTK
dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL, FALSE, "charter" ) );
- dc.DrawText( "Drag text from here!", 20, h-50 );
+ dc.DrawText( "Drag text from here!", 100, h-50 );
+}
- if ( m_bitmap.Ok() )
- {
- // 4/5 is 80% taken by other windows, 20 is arbitrary margin
- dc.DrawBitmap(m_bitmap,
- w - m_bitmap.GetWidth() - 20,
- (4*h)/5 + 20);
- }
+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) );
}
{
(new DnDShapeFrame(this))->Show(TRUE);
- wxLogStatus(this, "Double click the new frame to select a shape for it");
+ wxLogStatus(this, wxT("Double click the new frame to select a shape for it"));
}
void DnDFrame::OnDrag(wxCommandEvent& WXUNUSED(event))
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("Drag-&-Drop Demo\n"
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,
+ 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 char *pc;
-
- switch ( source.DoDragDrop(TRUE) )
+ switch ( source.DoDragDrop(flags) )
{
case wxDragError: pc = "Error!"; break;
case wxDragNone: pc = "Nothing"; break;
void DnDFrame::OnRightDown(wxMouseEvent &event )
{
- wxMenu *menu = new wxMenu;
+ wxMenu menu("Dnd sample menu");
- 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");
+ menu.Append(Menu_Drag, "&Test drag...");
+ menu.AppendSeparator();
+ menu.Append(Menu_About, "&About");
- menu->Delete( Menu_ToBeDeleted );
- menu->Enable( Menu_ToBeGreyed, FALSE );
-
- PopupMenu( menu, event.GetX(), event.GetY() );
+ PopupMenu( &menu, event.GetX(), event.GetY() );
}
DnDFrame::~DnDFrame()
wxLogStatus( _T("Decoding image file...") );
wxYield();
- wxBitmap bitmap( image.ConvertToBitmap() );
+ wxBitmap bitmap( image );
if ( !wxTheClipboard->Open() )
{
}
wxBitmapDataObject data;
- if ( !wxTheClipboard->GetData(&data) )
+ if ( !wxTheClipboard->GetData(data) )
{
wxLogError(_T("Can't paste bitmap from the clipboard"));
}
else
{
- wxLogMessage(_T("Bitmap pasted from the clipboard") );
- m_bitmap = data.GetBitmap();
- Refresh();
+ 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, "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(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
// ---------------------------------------------------------------------------
}
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;
// ----------------------------------------------------------------------------
DnDShapeDialog::DnDShapeDialog(wxFrame *parent, DnDShape *shape)
+#if !USE_RESOURCES
+ :wxDialog( parent, 6001, wxT("Choose Shape"), wxPoint( 10, 10 ),
+ wxSize( 40, 40 ),
+ wxRAISED_BORDER|wxCAPTION|wxTHICK_FRAME|wxSYSTEM_MENU )
+#endif
{
m_shape = shape;
-
+#if USE_RESOURCES
LoadFromResource(parent, "dialogShape");
m_textX = (wxTextCtrl *)wxFindWindowByName("textX", this);
m_textH = (wxTextCtrl *)wxFindWindowByName("textH", this);
m_radio = (wxRadioBox *)wxFindWindowByName("radio", this);
+#else
+ 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, -1, 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, -1, wxT("&Attributes") );
+ wxStaticBoxSizer* attrSizer = new wxStaticBoxSizer( box, wxHORIZONTAL );
+ wxFlexGridSizer* xywhSizer = new wxFlexGridSizer( 4, 2 );
+
+ wxStaticText* st;
+
+ st = new wxStaticText( this, -1, wxT("Position &X:") );
+ m_textX = new wxTextCtrl( this, -1, wxEmptyString, wxDefaultPosition,
+ wxSize( 30, 20 ) );
+ xywhSizer->Add( st, 1, wxGROW|wxALL, 2 );
+ xywhSizer->Add( m_textX, 1, wxGROW|wxALL, 2 );
+
+ st = new wxStaticText( this, -1, wxT("Size &width:") );
+ m_textW = new wxTextCtrl( this, -1, wxEmptyString, wxDefaultPosition,
+ wxSize( 30, 20 ) );
+ xywhSizer->Add( st, 1, wxGROW|wxALL, 2 );
+ xywhSizer->Add( m_textW, 1, wxGROW|wxALL, 2 );
+
+ st = new wxStaticText( this, -1, wxT("&Y:") );
+ m_textY = new wxTextCtrl( this, -1, 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, -1, wxT("&height:") );
+ m_textH = new wxTextCtrl( this, -1, 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 );
+
+ SetAutoLayout( TRUE );
+ SetSizer( topSizer );
+ topSizer->Fit( this );
+#endif
}
DnDShape *DnDShapeDialog::GetShape() const
{
m_shapeKind = (DnDShape::Kind)m_radio->GetSelection();
- m_pos.x = atoi(m_textX->GetValue());
- m_pos.y = atoi(m_textY->GetValue());
- m_size.x = atoi(m_textW->GetValue());
- m_size.y = atoi(m_textH->GetValue());
+ 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 )
{
: wxFrame(parent, -1, "Shape Frame",
wxDefaultPosition, wxSize(250, 150))
{
- SetBackgroundColour(*wxWHITE);
-
CreateStatusBar();
wxMenu *menuShape = new wxMenu;
menuShape->Append(Menu_Shape_New, "&New default shape\tCtrl-S");
menuShape->Append(Menu_Shape_Edit, "&Edit shape\tCtrl-E");
menuShape->AppendSeparator();
- menuShape->Append(Menu_Shape_Clear, "&Clear shape\tDel");
+ menuShape->Append(Menu_Shape_Clear, "&Clear shape\tCtrl-L");
wxMenu *menuClipboard = new wxMenu;
menuClipboard->Append(Menu_ShapeClipboard_Copy, "&Copy\tCtrl-C");
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) )
{
default:
case wxDragError:
- wxLogError("An error occured during drag and drop operation");
+ wxLogError(wxT("An error occured during drag and drop operation"));
break;
case wxDragNone:
//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(wxT("Shape dropped at (%d, %d)"), 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(wxT("Can't open the clipboard"));
+
+ return;
+ }
+
wxTheClipboard->AddData(new DnDShapeDataObject(m_shape));
+ }
}
void DnDShapeFrame::OnPasteShape(wxCommandEvent& event)
{
+ wxClipboardLocker clipLocker;
+ if ( !clipLocker )
+ {
+ wxLogError(wxT("Can't open the clipboard"));
+
+ return;
+ }
+
DnDShapeDataObject shapeDataObject(NULL);
- if ( wxTheClipboard->GetData(&shapeDataObject) )
+ if ( wxTheClipboard->GetData(shapeDataObject) )
{
SetShape(shapeDataObject.GetShape());
}
else
{
- wxLogStatus("No shape on the clipboard");
+ wxLogStatus(wxT("No shape on the clipboard"));
}
}
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);
+ }
}
// ----------------------------------------------------------------------------
wxColour(dump.r, dump.g, dump.b));
default:
- wxFAIL_MSG("invalid shape!");
+ wxFAIL_MSG(wxT("invalid shape!"));
return NULL;
}
}
// DnDShapeDataObject
// ----------------------------------------------------------------------------
+#ifdef USE_METAFILES
+
+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 // Windows
+
void DnDShapeDataObject::CreateBitmap() const
{
wxPoint pos = m_shape->GetPosition();
wxBitmap bitmap(x, y);
wxMemoryDC dc;
dc.SelectObject(bitmap);
- dc.SetBrush(wxBrush("white", wxSOLID));
+ dc.SetBrush(wxBrush(wxT("white"), wxSOLID));
dc.Clear();
m_shape->Draw(dc);
dc.SelectObject(wxNullBitmap);
DnDShapeDataObject *self = (DnDShapeDataObject *)this; // const_cast
- self->m_dataobj.SetBitmap(bitmap);
+ self->m_dobjBitmap.SetBitmap(bitmap);
self->m_hasBitmap = TRUE;
}
+// ----------------------------------------------------------------------------
+// global functions
+// ----------------------------------------------------------------------------
+
+static void ShowBitmap(const wxBitmap& bitmap)
+{
+ wxFrame *frame = new wxFrame(NULL, -1, _T("Bitmap view"));
+ frame->CreateStatusBar();
+ DnDCanvasBitmap *canvas = new DnDCanvasBitmap(frame);
+ canvas->SetBitmap(bitmap);
+
+ int w = bitmap.GetWidth(),
+ h = bitmap.GetHeight();
+ frame->SetStatusText(wxString::Format(_T("%dx%d"), w, h));
+
+ frame->SetClientSize(w > 100 ? 100 : w, h > 100 ? 100 : h);
+ frame->Show(TRUE);
+}
+
+#ifdef USE_METAFILES
+
+static void ShowMetaFile(const wxMetaFile& metafile)
+{
+ wxFrame *frame = new wxFrame(NULL, -1, _T("Metafile view"));
+ frame->CreateStatusBar();
+ DnDCanvasMetafile *canvas = new DnDCanvasMetafile(frame);
+ canvas->SetMetafile(metafile);
+
+ wxSize size = metafile.GetSize();
+ frame->SetStatusText(wxString::Format(_T("%dx%d"), size.x, size.y));
+
+ frame->SetClientSize(size.x > 100 ? 100 : size.x,
+ size.y > 100 ? 100 : size.y);
+ frame->Show();
+}
+
+#endif // USE_METAFILES
projects / wxWidgets.git / blobdiff