714cfcbd46
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40600 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1989 lines
54 KiB
C++
1989 lines
54 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: dnd.cpp
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// Purpose: Drag and drop sample
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 04/01/98
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// RCS-ID: $Id$
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// Copyright:
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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#include "wx/dnd.h"
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#include "wx/dataobj.h"
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#include "wx/image.h"
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#include "wx/clipbrd.h"
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#include "wx/colordlg.h"
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#include "wx/metafile.h"
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#if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__)
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#include "../sample.xpm"
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#if wxUSE_DRAG_AND_DROP
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#include "dnd_copy.xpm"
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#include "dnd_move.xpm"
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#include "dnd_none.xpm"
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#endif
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#endif
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#if wxUSE_DRAG_AND_DROP
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// ----------------------------------------------------------------------------
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// Derive two simple classes which just put in the listbox the strings (text or
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// file names) we drop on them
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// ----------------------------------------------------------------------------
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class DnDText : public wxTextDropTarget
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{
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public:
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DnDText(wxListBox *pOwner) { m_pOwner = pOwner; }
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virtual bool OnDropText(wxCoord x, wxCoord y, const wxString& text);
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private:
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wxListBox *m_pOwner;
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};
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class DnDFile : public wxFileDropTarget
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{
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public:
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DnDFile(wxListBox *pOwner) { m_pOwner = pOwner; }
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virtual bool OnDropFiles(wxCoord x, wxCoord y,
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const wxArrayString& filenames);
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private:
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wxListBox *m_pOwner;
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};
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// ----------------------------------------------------------------------------
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// Define a custom dtop target accepting URLs
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// ----------------------------------------------------------------------------
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class URLDropTarget : public wxDropTarget
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{
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public:
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URLDropTarget() { SetDataObject(new wxURLDataObject); }
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void OnDropURL(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), const wxString& text)
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{
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// of course, a real program would do something more useful here...
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wxMessageBox(text, _T("wxDnD sample: got URL"),
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wxICON_INFORMATION | wxOK);
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}
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// URLs can't be moved, only copied
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virtual wxDragResult OnDragOver(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
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wxDragResult WXUNUSED(def))
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{
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return wxDragLink; // At least IE 5.x needs wxDragLink, the
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// other browsers on MSW seem okay with it too.
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}
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// translate this to calls to OnDropURL() just for convenience
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virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def)
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{
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if ( !GetData() )
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return wxDragNone;
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OnDropURL(x, y, ((wxURLDataObject *)m_dataObject)->GetURL());
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return def;
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}
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};
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#endif // wxUSE_DRAG_AND_DROP
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// ----------------------------------------------------------------------------
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// Define a new application type
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// ----------------------------------------------------------------------------
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class DnDApp : public wxApp
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{
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public:
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virtual bool OnInit();
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};
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IMPLEMENT_APP(DnDApp)
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#if wxUSE_DRAG_AND_DROP || wxUSE_CLIPBOARD
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// ----------------------------------------------------------------------------
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// Define canvas class to show a bitmap
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// ----------------------------------------------------------------------------
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class DnDCanvasBitmap : public wxScrolledWindow
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{
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public:
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DnDCanvasBitmap(wxWindow *parent) : wxScrolledWindow(parent) { }
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void SetBitmap(const wxBitmap& bitmap)
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{
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m_bitmap = bitmap;
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SetScrollbars(10, 10,
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m_bitmap.GetWidth() / 10, m_bitmap.GetHeight() / 10);
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Refresh();
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}
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void OnPaint(wxPaintEvent& WXUNUSED(event))
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{
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wxPaintDC dc(this);
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if ( m_bitmap.Ok() )
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{
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PrepareDC(dc);
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dc.DrawBitmap(m_bitmap, 0, 0);
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}
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}
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private:
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wxBitmap m_bitmap;
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DECLARE_EVENT_TABLE()
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};
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#if wxUSE_METAFILE
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// and the same thing fo metafiles
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class DnDCanvasMetafile : public wxScrolledWindow
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{
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public:
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DnDCanvasMetafile(wxWindow *parent) : wxScrolledWindow(parent) { }
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void SetMetafile(const wxMetafile& metafile)
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{
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m_metafile = metafile;
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SetScrollbars(10, 10,
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m_metafile.GetWidth() / 10, m_metafile.GetHeight() / 10);
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Refresh();
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}
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void OnPaint(wxPaintEvent&)
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{
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wxPaintDC dc(this);
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if ( m_metafile.Ok() )
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{
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PrepareDC(dc);
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m_metafile.Play(&dc);
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}
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}
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private:
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wxMetafile m_metafile;
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DECLARE_EVENT_TABLE()
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};
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#endif // wxUSE_METAFILE
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// ----------------------------------------------------------------------------
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// Define a new frame type for the main frame
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// ----------------------------------------------------------------------------
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class DnDFrame : public wxFrame
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{
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public:
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DnDFrame(wxFrame *frame, const wxChar *title, int x, int y, int w, int h);
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virtual ~DnDFrame();
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void OnPaint(wxPaintEvent& event);
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void OnSize(wxSizeEvent& event);
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void OnQuit(wxCommandEvent& event);
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void OnAbout(wxCommandEvent& event);
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void OnDrag(wxCommandEvent& event);
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void OnDragMoveByDefault(wxCommandEvent& event);
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void OnDragMoveAllow(wxCommandEvent& event);
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void OnNewFrame(wxCommandEvent& event);
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void OnHelp (wxCommandEvent& event);
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#if wxUSE_LOG
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void OnLogClear(wxCommandEvent& event);
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#endif // wxUSE_LOG
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void OnCopy(wxCommandEvent& event);
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void OnPaste(wxCommandEvent& event);
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void OnCopyBitmap(wxCommandEvent& event);
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void OnPasteBitmap(wxCommandEvent& event);
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#if wxUSE_METAFILE
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void OnPasteMetafile(wxCommandEvent& event);
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#endif // wxUSE_METAFILE
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void OnCopyFiles(wxCommandEvent& event);
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void OnLeftDown(wxMouseEvent& event);
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void OnRightDown(wxMouseEvent& event);
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void OnUpdateUIMoveByDefault(wxUpdateUIEvent& event);
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void OnUpdateUIPasteText(wxUpdateUIEvent& event);
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void OnUpdateUIPasteBitmap(wxUpdateUIEvent& event);
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DECLARE_EVENT_TABLE()
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private:
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// GUI controls
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wxListBox *m_ctrlFile,
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*m_ctrlText;
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#if wxUSE_LOG
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wxTextCtrl *m_ctrlLog;
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wxLog *m_pLog,
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*m_pLogPrev;
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#endif // wxUSE_LOG
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// move the text by default (or copy)?
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bool m_moveByDefault;
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// allow moving the text at all?
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bool m_moveAllow;
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// the text we drag
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wxString m_strText;
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};
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// ----------------------------------------------------------------------------
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// A shape is an example of application-specific data which may be transported
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// via drag-and-drop or clipboard: in our case, we have different geometric
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// shapes, each one with its own colour and position
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// ----------------------------------------------------------------------------
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#if wxUSE_DRAG_AND_DROP
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class DnDShape
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{
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public:
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enum Kind
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{
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None,
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Triangle,
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Rectangle,
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Ellipse
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};
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DnDShape(const wxPoint& pos,
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const wxSize& size,
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const wxColour& col)
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: m_pos(pos), m_size(size), m_col(col)
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{
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}
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// this is for debugging - lets us see when exactly an object is freed
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// (this may be later than you think if it's on the clipboard, for example)
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virtual ~DnDShape() { }
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// the functions used for drag-and-drop: they dump and restore a shape into
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// some bitwise-copiable data (might use streams too...)
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// ------------------------------------------------------------------------
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// restore from buffer
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static DnDShape *New(const void *buf);
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virtual size_t GetDataSize() const
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{
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return sizeof(ShapeDump);
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}
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virtual void GetDataHere(void *buf) const
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{
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ShapeDump& dump = *(ShapeDump *)buf;
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dump.x = m_pos.x;
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dump.y = m_pos.y;
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dump.w = m_size.x;
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dump.h = m_size.y;
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dump.r = m_col.Red();
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dump.g = m_col.Green();
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dump.b = m_col.Blue();
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dump.k = GetKind();
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}
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// accessors
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const wxPoint& GetPosition() const { return m_pos; }
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const wxColour& GetColour() const { return m_col; }
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const wxSize& GetSize() const { return m_size; }
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void Move(const wxPoint& pos) { m_pos = pos; }
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// to implement in derived classes
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virtual Kind GetKind() const = 0;
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virtual void Draw(wxDC& dc)
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{
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dc.SetPen(wxPen(m_col, 1, wxSOLID));
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}
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protected:
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//get a point 1 up and 1 left, otherwise the mid-point of a triangle is on the line
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wxPoint GetCentre() const
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{ return wxPoint(m_pos.x + m_size.x / 2 - 1, m_pos.y + m_size.y / 2 - 1); }
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struct ShapeDump
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{
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wxCoord x, y, // position
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w, h; // size
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int k; // kind
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unsigned char r, g, b; // colour
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};
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wxPoint m_pos;
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wxSize m_size;
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wxColour m_col;
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};
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class DnDTriangularShape : public DnDShape
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{
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public:
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DnDTriangularShape(const wxPoint& pos,
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const wxSize& size,
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const wxColour& col)
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: DnDShape(pos, size, col)
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{
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wxLogMessage(wxT("DnDTriangularShape is being created"));
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}
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virtual ~DnDTriangularShape()
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{
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wxLogMessage(wxT("DnDTriangularShape is being deleted"));
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}
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virtual Kind GetKind() const { return Triangle; }
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virtual void Draw(wxDC& dc)
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{
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DnDShape::Draw(dc);
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// well, it's a bit difficult to describe a triangle by position and
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// size, but we're not doing geometry here, do we? ;-)
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wxPoint p1(m_pos);
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wxPoint p2(m_pos.x + m_size.x, m_pos.y);
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wxPoint p3(m_pos.x, m_pos.y + m_size.y);
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dc.DrawLine(p1, p2);
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dc.DrawLine(p2, p3);
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dc.DrawLine(p3, p1);
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//works in multicolor modes; on GTK (at least) will fail in 16-bit color
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dc.SetBrush(wxBrush(m_col, wxSOLID));
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dc.FloodFill(GetCentre(), m_col, wxFLOOD_BORDER);
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}
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};
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class DnDRectangularShape : public DnDShape
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{
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public:
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DnDRectangularShape(const wxPoint& pos,
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const wxSize& size,
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const wxColour& col)
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: DnDShape(pos, size, col)
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{
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wxLogMessage(wxT("DnDRectangularShape is being created"));
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}
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virtual ~DnDRectangularShape()
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{
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wxLogMessage(wxT("DnDRectangularShape is being deleted"));
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}
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virtual Kind GetKind() const { return Rectangle; }
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virtual void Draw(wxDC& dc)
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{
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DnDShape::Draw(dc);
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wxPoint p1(m_pos);
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wxPoint p2(p1.x + m_size.x, p1.y);
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wxPoint p3(p2.x, p2.y + m_size.y);
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wxPoint p4(p1.x, p3.y);
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dc.DrawLine(p1, p2);
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dc.DrawLine(p2, p3);
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dc.DrawLine(p3, p4);
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dc.DrawLine(p4, p1);
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dc.SetBrush(wxBrush(m_col, wxSOLID));
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dc.FloodFill(GetCentre(), m_col, wxFLOOD_BORDER);
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}
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};
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class DnDEllipticShape : public DnDShape
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{
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public:
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DnDEllipticShape(const wxPoint& pos,
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const wxSize& size,
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const wxColour& col)
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: DnDShape(pos, size, col)
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{
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wxLogMessage(wxT("DnDEllipticShape is being created"));
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}
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virtual ~DnDEllipticShape()
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{
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wxLogMessage(wxT("DnDEllipticShape is being deleted"));
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}
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virtual Kind GetKind() const { return Ellipse; }
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virtual void Draw(wxDC& dc)
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{
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DnDShape::Draw(dc);
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dc.DrawEllipse(m_pos, m_size);
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dc.SetBrush(wxBrush(m_col, wxSOLID));
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dc.FloodFill(GetCentre(), m_col, wxFLOOD_BORDER);
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}
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};
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// ----------------------------------------------------------------------------
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// A wxDataObject specialisation for the application-specific data
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// ----------------------------------------------------------------------------
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static const wxChar *shapeFormatId = wxT("wxShape");
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class DnDShapeDataObject : public wxDataObject
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{
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public:
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// ctor doesn't copy the pointer, so it shouldn't go away while this object
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// is alive
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DnDShapeDataObject(DnDShape *shape = (DnDShape *)NULL)
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{
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if ( shape )
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{
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// we need to copy the shape because the one we're handled may be
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// deleted while it's still on the clipboard (for example) - and we
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// reuse the serialisation methods here to copy it
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void *buf = malloc(shape->DnDShape::GetDataSize());
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shape->GetDataHere(buf);
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m_shape = DnDShape::New(buf);
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free(buf);
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}
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else
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{
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// nothing to copy
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m_shape = NULL;
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}
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// this string should uniquely identify our format, but is otherwise
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// arbitrary
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m_formatShape.SetId(shapeFormatId);
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// we don't draw the shape to a bitmap until it's really needed (i.e.
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// we're asked to do so)
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m_hasBitmap = false;
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#if wxUSE_METAFILE
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m_hasMetaFile = false;
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#endif // wxUSE_METAFILE
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}
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virtual ~DnDShapeDataObject() { delete m_shape; }
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// after a call to this function, the shape is owned by the caller and it
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// is responsible for deleting it!
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//
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// NB: a better solution would be to make DnDShapes ref counted and this
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// is what should probably be done in a real life program, otherwise
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// the ownership problems become too complicated really fast
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DnDShape *GetShape()
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{
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DnDShape *shape = m_shape;
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m_shape = (DnDShape *)NULL;
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m_hasBitmap = false;
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#if wxUSE_METAFILE
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m_hasMetaFile = false;
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#endif // wxUSE_METAFILE
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return shape;
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}
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// implement base class pure virtuals
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// ----------------------------------
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virtual wxDataFormat GetPreferredFormat(Direction WXUNUSED(dir)) const
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{
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return m_formatShape;
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}
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virtual size_t GetFormatCount(Direction dir) const
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{
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// our custom format is supported by both GetData() and SetData()
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size_t nFormats = 1;
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if ( dir == Get )
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{
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// but the bitmap format(s) are only supported for output
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nFormats += m_dobjBitmap.GetFormatCount(dir);
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#if wxUSE_METAFILE
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nFormats += m_dobjMetaFile.GetFormatCount(dir);
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#endif // wxUSE_METAFILE
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}
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return nFormats;
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}
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virtual void GetAllFormats(wxDataFormat *formats, Direction dir) const
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{
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formats[0] = m_formatShape;
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if ( dir == Get )
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{
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// in Get direction we additionally support bitmaps and metafiles
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// under Windows
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m_dobjBitmap.GetAllFormats(&formats[1], dir);
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#if wxUSE_METAFILE
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// don't assume that m_dobjBitmap has only 1 format
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m_dobjMetaFile.GetAllFormats(&formats[1 +
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m_dobjBitmap.GetFormatCount(dir)], dir);
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#endif // wxUSE_METAFILE
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}
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}
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virtual size_t GetDataSize(const wxDataFormat& format) const
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{
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if ( format == m_formatShape )
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{
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return m_shape->GetDataSize();
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}
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#if wxUSE_METAFILE
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else if ( m_dobjMetaFile.IsSupported(format) )
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{
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if ( !m_hasMetaFile )
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CreateMetaFile();
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return m_dobjMetaFile.GetDataSize(format);
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}
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#endif // wxUSE_METAFILE
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|
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;
|
|
}
|
|
#if wxUSE_METAFILE
|
|
else if ( m_dobjMetaFile.IsSupported(format) )
|
|
{
|
|
if ( !m_hasMetaFile )
|
|
CreateMetaFile();
|
|
|
|
return m_dobjMetaFile.GetDataHere(format, pBuf);
|
|
}
|
|
#endif // wxUSE_METAFILE
|
|
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 WXUNUSED(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;
|
|
|
|
#if wxUSE_METAFILE
|
|
m_hasMetaFile = false;
|
|
#endif // wxUSE_METAFILE
|
|
|
|
return true;
|
|
}
|
|
|
|
private:
|
|
// creates a bitmap and assigns it to m_dobjBitmap (also sets m_hasBitmap)
|
|
void CreateBitmap() const;
|
|
#if wxUSE_METAFILE
|
|
void CreateMetaFile() const;
|
|
#endif // wxUSE_METAFILE
|
|
|
|
wxDataFormat m_formatShape; // our custom format
|
|
|
|
wxBitmapDataObject m_dobjBitmap; // it handles bitmaps
|
|
bool m_hasBitmap; // true if m_dobjBitmap has valid bitmap
|
|
|
|
#if wxUSE_METAFILE
|
|
wxMetaFileDataObject m_dobjMetaFile;// handles metafiles
|
|
bool m_hasMetaFile; // true if we have valid metafile
|
|
#endif // wxUSE_METAFILE
|
|
|
|
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);
|
|
virtual bool SetShape(const wxRegion ®ion)
|
|
{
|
|
return wxFrame::SetShape( region );
|
|
}
|
|
|
|
// 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)
|
|
{
|
|
#if wxUSE_STATUSBAR
|
|
m_frame->SetStatusText(_T("Mouse entered the frame"));
|
|
#endif // wxUSE_STATUSBAR
|
|
return OnDragOver(x, y, def);
|
|
}
|
|
virtual void OnLeave()
|
|
{
|
|
#if wxUSE_STATUSBAR
|
|
m_frame->SetStatusText(_T("Mouse left the frame"));
|
|
#endif // wxUSE_STATUSBAR
|
|
}
|
|
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;
|
|
};
|
|
|
|
#endif // wxUSE_DRAG_AND_DROP
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// functions prototypes
|
|
// ----------------------------------------------------------------------------
|
|
|
|
static void ShowBitmap(const wxBitmap& bitmap);
|
|
|
|
#if wxUSE_METAFILE
|
|
static void ShowMetaFile(const wxMetaFile& metafile);
|
|
#endif // wxUSE_METAFILE
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// 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)
|
|
#if wxUSE_LOG
|
|
EVT_MENU(Menu_Clear, DnDFrame::OnLogClear)
|
|
#endif // wxUSE_LOG
|
|
EVT_MENU(Menu_Copy, DnDFrame::OnCopy)
|
|
EVT_MENU(Menu_Paste, DnDFrame::OnPaste)
|
|
EVT_MENU(Menu_CopyBitmap, DnDFrame::OnCopyBitmap)
|
|
EVT_MENU(Menu_PasteBitmap,DnDFrame::OnPasteBitmap)
|
|
#if wxUSE_METAFILE
|
|
EVT_MENU(Menu_PasteMFile, DnDFrame::OnPasteMetafile)
|
|
#endif // wxUSE_METAFILE
|
|
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()
|
|
|
|
#if wxUSE_DRAG_AND_DROP
|
|
|
|
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()
|
|
|
|
#endif // wxUSE_DRAG_AND_DROP
|
|
|
|
BEGIN_EVENT_TABLE(DnDCanvasBitmap, wxScrolledWindow)
|
|
EVT_PAINT(DnDCanvasBitmap::OnPaint)
|
|
END_EVENT_TABLE()
|
|
|
|
#if wxUSE_METAFILE
|
|
BEGIN_EVENT_TABLE(DnDCanvasMetafile, wxScrolledWindow)
|
|
EVT_PAINT(DnDCanvasMetafile::OnPaint)
|
|
END_EVENT_TABLE()
|
|
#endif // wxUSE_METAFILE
|
|
|
|
#endif // wxUSE_DRAG_AND_DROP
|
|
|
|
// ============================================================================
|
|
// implementation
|
|
// ============================================================================
|
|
|
|
// `Main program' equivalent, creating windows and returning main app frame
|
|
bool DnDApp::OnInit()
|
|
{
|
|
#if wxUSE_DRAG_AND_DROP || wxUSE_CLIPBOARD
|
|
// switch on trace messages
|
|
#if wxUSE_LOG
|
|
#if defined(__WXGTK__)
|
|
wxLog::AddTraceMask(_T("clipboard"));
|
|
#elif defined(__WXMSW__)
|
|
wxLog::AddTraceMask(wxTRACE_OleCalls);
|
|
#endif
|
|
#endif // wxUSE_LOG
|
|
|
|
#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 wxWidgets Sample"),
|
|
10, 100, 650, 340);
|
|
|
|
// activate it
|
|
frame->Show(true);
|
|
|
|
SetTopWindow(frame);
|
|
|
|
return true;
|
|
#else
|
|
wxMessageBox( _T("This sample has to be compiled with wxUSE_DRAG_AND_DROP"), _T("Building error"), wxOK);
|
|
return false;
|
|
#endif // wxUSE_DRAG_AND_DROP
|
|
}
|
|
|
|
#if wxUSE_DRAG_AND_DROP || wxUSE_CLIPBOARD
|
|
|
|
DnDFrame::DnDFrame(wxFrame *frame, const wxChar *title, int x, int y, int w, int h)
|
|
: wxFrame(frame, wxID_ANY, title, wxPoint(x, y), wxSize(w, h)),
|
|
m_strText(_T("wxWidgets drag & drop works :-)"))
|
|
|
|
{
|
|
// frame icon and status bar
|
|
SetIcon(wxICON(sample));
|
|
|
|
#if wxUSE_STATUSBAR
|
|
CreateStatusBar();
|
|
#endif // wxUSE_STATUSBAR
|
|
|
|
// 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"));
|
|
|
|
#if wxUSE_LOG
|
|
wxMenu *log_menu = new wxMenu;
|
|
log_menu->Append(Menu_Clear, _T("Clear\tCtrl-L"));
|
|
#endif // wxUSE_LOG
|
|
|
|
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"));
|
|
#if wxUSE_METAFILE
|
|
clip_menu->AppendSeparator();
|
|
clip_menu->Append(Menu_PasteMFile, _T("Paste &metafile\tCtrl-M"));
|
|
#endif // wxUSE_METAFILE
|
|
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"));
|
|
#if wxUSE_LOG
|
|
menu_bar->Append(log_menu, _T("&Log"));
|
|
#endif // wxUSE_LOG
|
|
menu_bar->Append(clip_menu, _T("&Clipboard"));
|
|
menu_bar->Append(help_menu, _T("&Help"));
|
|
|
|
SetMenuBar(menu_bar);
|
|
|
|
// make a panel with 3 subwindows
|
|
wxString strFile(_T("Drop files here!")), strText(_T("Drop text on me"));
|
|
|
|
m_ctrlFile = new wxListBox(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, 1, &strFile,
|
|
wxLB_HSCROLL | wxLB_ALWAYS_SB );
|
|
m_ctrlText = new wxListBox(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, 1, &strText,
|
|
wxLB_HSCROLL | wxLB_ALWAYS_SB );
|
|
|
|
#if wxUSE_LOG
|
|
m_ctrlLog = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize,
|
|
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);
|
|
#endif // wxUSE_LOG
|
|
|
|
#if wxUSE_DRAG_AND_DROP
|
|
// associate drop targets with the controls
|
|
m_ctrlFile->SetDropTarget(new DnDFile(m_ctrlFile));
|
|
m_ctrlText->SetDropTarget(new DnDText(m_ctrlText));
|
|
#if wxUSE_LOG
|
|
m_ctrlLog->SetDropTarget(new URLDropTarget);
|
|
#endif // wxUSE_LOG
|
|
#endif // wxUSE_DRAG_AND_DROP
|
|
|
|
wxBoxSizer *sizer_top = new wxBoxSizer( wxHORIZONTAL );
|
|
sizer_top->Add(m_ctrlFile, 1, wxEXPAND );
|
|
sizer_top->Add(m_ctrlText, 1, wxEXPAND );
|
|
|
|
wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
|
|
sizer->Add(sizer_top, 1, wxEXPAND );
|
|
#if wxUSE_LOG
|
|
sizer->Add(m_ctrlLog, 2, wxEXPAND);
|
|
sizer->SetItemMinSize(m_ctrlLog, 450, 0);
|
|
#endif // wxUSE_LOG
|
|
sizer->AddSpacer(50);
|
|
|
|
SetSizer(sizer);
|
|
sizer->SetSizeHints( this );
|
|
|
|
// 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))
|
|
{
|
|
#if wxUSE_DRAG_AND_DROP
|
|
(new DnDShapeFrame(this))->Show(true);
|
|
|
|
wxLogStatus(this, wxT("Double click the new frame to select a shape for it"));
|
|
#endif // wxUSE_DRAG_AND_DROP
|
|
}
|
|
|
|
void DnDFrame::OnDrag(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
#if wxUSE_DRAG_AND_DROP
|
|
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;
|
|
#endif // wxUSE_DRAG_AND_DROP
|
|
}
|
|
|
|
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 wxWidgets. 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();
|
|
}
|
|
|
|
#if wxUSE_LOG
|
|
void DnDFrame::OnLogClear(wxCommandEvent& /* event */ )
|
|
{
|
|
m_ctrlLog->Clear();
|
|
m_ctrlText->Clear();
|
|
m_ctrlFile->Clear();
|
|
}
|
|
#endif // wxUSE_LOG
|
|
|
|
void DnDFrame::OnLeftDown(wxMouseEvent &WXUNUSED(event) )
|
|
{
|
|
#if wxUSE_DRAG_AND_DROP
|
|
if ( !m_strText.empty() )
|
|
{
|
|
// 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;
|
|
|
|
wxDragResult result = source.DoDragDrop(flags);
|
|
|
|
#if wxUSE_STATUSBAR
|
|
const wxChar *pc;
|
|
switch ( result )
|
|
{
|
|
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);
|
|
#else
|
|
wxUnusedVar(result);
|
|
#endif // wxUSE_STATUSBAR
|
|
}
|
|
#endif // wxUSE_DRAG_AND_DROP
|
|
}
|
|
|
|
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 wxUSE_LOG
|
|
if ( m_pLog != NULL ) {
|
|
if ( wxLog::SetActiveTarget(m_pLogPrev) == m_pLog )
|
|
delete m_pLog;
|
|
}
|
|
#endif // wxUSE_LOG
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// bitmap clipboard
|
|
// ---------------------------------------------------------------------------
|
|
|
|
void DnDFrame::OnCopyBitmap(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
// PNG support is not always compiled in under Windows, so use BMP there
|
|
#if wxUSE_LIBPNG
|
|
wxFileDialog dialog(this, _T("Open a PNG file"), wxEmptyString, wxEmptyString, _T("PNG files (*.png)|*.png"), 0);
|
|
#else
|
|
wxFileDialog dialog(this, _T("Open a BMP file"), wxEmptyString, wxEmptyString, _T("BMP files (*.bmp)|*.bmp"), 0);
|
|
#endif
|
|
|
|
if (dialog.ShowModal() != wxID_OK)
|
|
{
|
|
wxLogMessage( _T("Aborted file open") );
|
|
return;
|
|
}
|
|
|
|
if (dialog.GetPath().empty())
|
|
{
|
|
wxLogMessage( _T("Returned empty string.") );
|
|
return;
|
|
}
|
|
|
|
if (!wxFileExists(dialog.GetPath()))
|
|
{
|
|
wxLogMessage( _T("File doesn't exist.") );
|
|
return;
|
|
}
|
|
|
|
wxImage image;
|
|
image.LoadFile( dialog.GetPath(),
|
|
#if wxUSE_LIBPNG
|
|
wxBITMAP_TYPE_PNG
|
|
#else
|
|
wxBITMAP_TYPE_BMP
|
|
#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();
|
|
}
|
|
|
|
#if wxUSE_METAFILE
|
|
|
|
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 // wxUSE_METAFILE
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// file clipboard
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void DnDFrame::OnCopyFiles(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
#ifdef __WXMSW__
|
|
wxFileDialog dialog(this, _T("Select a file to copy"), wxEmptyString, wxEmptyString,
|
|
_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 ? wxEmptyString : wxEmptyString);
|
|
}
|
|
}
|
|
}
|
|
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());
|
|
}
|
|
|
|
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( _T("%d files dropped"), (int)nFiles);
|
|
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( 4, 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 );
|
|
|
|
SetSizer( topSizer );
|
|
topSizer->Fit( this );
|
|
}
|
|
|
|
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(_T("All sizes and positions should be non null!"),
|
|
_T("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, _T("Shape Frame"))
|
|
{
|
|
#if wxUSE_STATUSBAR
|
|
CreateStatusBar();
|
|
#endif // wxUSE_STATUSBAR
|
|
|
|
wxMenu *menuShape = new wxMenu;
|
|
menuShape->Append(Menu_Shape_New, _T("&New default shape\tCtrl-S"));
|
|
menuShape->Append(Menu_Shape_Edit, _T("&Edit shape\tCtrl-E"));
|
|
menuShape->AppendSeparator();
|
|
menuShape->Append(Menu_Shape_Clear, _T("&Clear shape\tCtrl-L"));
|
|
|
|
wxMenu *menuClipboard = new wxMenu;
|
|
menuClipboard->Append(Menu_ShapeClipboard_Copy, _T("&Copy\tCtrl-C"));
|
|
menuClipboard->Append(Menu_ShapeClipboard_Paste, _T("&Paste\tCtrl-V"));
|
|
|
|
wxMenuBar *menubar = new wxMenuBar;
|
|
menubar->Append(menuShape, _T("&Shape"));
|
|
menubar->Append(menuClipboard, _T("&Clipboard"));
|
|
|
|
SetMenuBar(menubar);
|
|
|
|
#if wxUSE_STATUSBAR
|
|
SetStatusText(_T("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(_T("Nothing happened"));
|
|
#endif // wxUSE_STATUSBAR
|
|
break;
|
|
|
|
case wxDragCopy:
|
|
pc = _T("copied");
|
|
break;
|
|
|
|
case wxDragMove:
|
|
pc = _T("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(_T("Drag and drop operation cancelled"));
|
|
#endif // wxUSE_STATUSBAR
|
|
break;
|
|
}
|
|
|
|
if ( pc )
|
|
{
|
|
#if wxUSE_STATUSBAR
|
|
SetStatusText(wxString(_T("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(_T("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(_T("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, _T("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(_T("%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, _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 // wxUSE_METAFILE
|
|
|
|
#endif // wxUSE_DRAG_AND_DROP || wxUSE_CLIPBOARD
|