fixes for GetReturnCode/SetReturnCode

[wxWidgets.git] / samples / dnd / dnd.cpp

diff --git a/samples/dnd/dnd.cpp b/samples/dnd/dnd.cpp
index 8b6fb25f47981c7831a95ca460951c4ff034bc25..cf3015cde932887cf19dada596e52c8b773d2b69 100644 (file)
--- a/samples/dnd/dnd.cpp
+++ b/samples/dnd/dnd.cpp
@@ -1,44 +1,48 @@
-///////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////

 // Name:        dnd.cpp
 // Purpose:     Drag and drop sample
 // Author:      Vadim Zeitlin
 // Name:        dnd.cpp
 // Purpose:     Drag and drop sample
 // Author:      Vadim Zeitlin

-// Modified by: 
-// Created:     13.11.97
+// Modified by:
+// Created:     04/01/98

 // RCS-ID:      $Id$
 // RCS-ID:      $Id$

-// Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence:     wxWindows license
-///////////////////////////////////////////////////////////////////////////////
+// Copyright:
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////

 
 

-// ============================================================================
-// headers & declarations
-// ============================================================================
-
-// For compilers that support precompilation, includes "wx.h".
-#include "wx/wxprec.h"
+#include <wx/wxprec.h>

 
 #ifdef __BORLANDC__
 #pragma hdrstop
 #endif
 
 #ifndef WX_PRECOMP
 
 #ifdef __BORLANDC__
 #pragma hdrstop
 #endif
 
 #ifndef WX_PRECOMP

-#include "wx/wx.h"
+#include <wx/wx.h>

 #endif
 
 #endif
 

-#include  "wx/intl.h"
-#include  "wx/log.h"
+#include <wx/intl.h>
+#include <wx/log.h>
+
+#include <wx/dnd.h>
+
+#ifdef __WXMOTIF__
+#error Sorry, drag and drop is not yet implemented on wxMotif.
+#endif

 
 

-#include  "wx/dnd.h"
+#if defined(__WXGTK__) || defined(__WXMOTIF__)
+#include "mondrian.xpm"
+#endif

 
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------

-// Derive 2 simple classes which just put in the listbox the strings (text or
+// Derive two simple classes which just put in the listbox the strings (text or

 // file names) we drop on them
 // ----------------------------------------------------------------------------
 // file names) we drop on them
 // ----------------------------------------------------------------------------

+

 class DnDText : public wxTextDropTarget
 {
 public:
   DnDText(wxListBox *pOwner) { m_pOwner = pOwner; }
 
 class DnDText : public wxTextDropTarget
 {
 public:
   DnDText(wxListBox *pOwner) { m_pOwner = pOwner; }
 

-  virtual bool OnDropText(long x, long y, const char *psz);
+  virtual bool OnDropText(long x, long y, const wxChar* psz );

 
 private:
   wxListBox *m_pOwner;
 
 private:
   wxListBox *m_pOwner;


@@ -50,7 +54,7 @@ public:
   DnDFile(wxListBox *pOwner) { m_pOwner = pOwner; }
 
   virtual bool OnDropFiles(long x, long y,
   DnDFile(wxListBox *pOwner) { m_pOwner = pOwner; }
 
   virtual bool OnDropFiles(long x, long y,

-                           size_t nFiles, const char * const aszFiles[]);
+                           size_t nFiles, const wxChar* const aszFiles[] );

 
 private:
   wxListBox *m_pOwner;
 
 private:
   wxListBox *m_pOwner;


@@ -59,8 +63,9 @@ private:
 // ----------------------------------------------------------------------------
 // Define a new application type
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // Define a new application type
 // ----------------------------------------------------------------------------

+

 class DnDApp : public wxApp
 class DnDApp : public wxApp

-{ 
+{

 public:
   bool OnInit();
 };
 public:
   bool OnInit();
 };


@@ -71,7 +76,7 @@ IMPLEMENT_APP(DnDApp);
 // Define a new frame type
 // ----------------------------------------------------------------------------
 class DnDFrame : public wxFrame
 // Define a new frame type
 // ----------------------------------------------------------------------------
 class DnDFrame : public wxFrame

-{ 
+{

 public:
   DnDFrame(wxFrame *frame, char *title, int x, int y, int w, int h);
  ~DnDFrame();
 public:
   DnDFrame(wxFrame *frame, char *title, int x, int y, int w, int h);
  ~DnDFrame();


@@ -79,10 +84,13 @@ public:
   void OnPaint(wxPaintEvent& event);
   void OnQuit (wxCommandEvent& event);
   void OnAbout(wxCommandEvent& event);
   void OnPaint(wxPaintEvent& event);
   void OnQuit (wxCommandEvent& event);
   void OnAbout(wxCommandEvent& event);

+  void OnDrag (wxCommandEvent& event);

   void OnHelp (wxCommandEvent& event);
   void OnHelp (wxCommandEvent& event);

+  void OnLogClear(wxCommandEvent& event);
+
+  void OnLeftDown(wxMouseEvent& event);
+  void OnRightDown(wxMouseEvent& event);

 
 

-  bool OnClose();
-  

   DECLARE_EVENT_TABLE()
 
 private:
   DECLARE_EVENT_TABLE()
 
 private:


@@ -90,32 +98,40 @@ private:
              *m_ctrlText;
   wxTextCtrl *m_ctrlLog;
 
              *m_ctrlText;
   wxTextCtrl *m_ctrlLog;
 

-  wxLogTarget *m_pLog, *m_pLogPrev;
+  wxLog *m_pLog, *m_pLogPrev;
+
+  wxString m_strText;

 };
 
 // ----------------------------------------------------------------------------
 // IDs for the menu commands
 // ----------------------------------------------------------------------------
 };
 
 // ----------------------------------------------------------------------------
 // IDs for the menu commands
 // ----------------------------------------------------------------------------

+

 enum
 {
   Menu_Quit = 1,
 enum
 {
   Menu_Quit = 1,

+  Menu_Drag,

   Menu_About = 101,
   Menu_Help,
   Menu_About = 101,
   Menu_Help,

+  Menu_Clear,

 };
 
 BEGIN_EVENT_TABLE(DnDFrame, wxFrame)
 };
 
 BEGIN_EVENT_TABLE(DnDFrame, wxFrame)

-       EVT_MENU(Menu_Quit,  DnDFrame::OnQuit)
-       EVT_MENU(Menu_About, DnDFrame::OnAbout)
-       EVT_MENU(Menu_Help,  DnDFrame::OnHelp)
-
-  //EVT_PAINT(DnDFrame::OnPaint)
+  EVT_MENU(Menu_Quit,  DnDFrame::OnQuit)
+  EVT_MENU(Menu_About, DnDFrame::OnAbout)
+  EVT_MENU(Menu_Drag,  DnDFrame::OnDrag)
+  EVT_MENU(Menu_Help,  DnDFrame::OnHelp)
+  EVT_MENU(Menu_Clear, DnDFrame::OnLogClear)
+  EVT_LEFT_DOWN(       DnDFrame::OnLeftDown)
+  EVT_RIGHT_DOWN(      DnDFrame::OnRightDown)
+  EVT_PAINT(           DnDFrame::OnPaint)

 END_EVENT_TABLE()
 
 // `Main program' equivalent, creating windows and returning main app frame
 END_EVENT_TABLE()
 
 // `Main program' equivalent, creating windows and returning main app frame

-bool DnDApp::OnInit(void)
+bool DnDApp::OnInit()

 {
   // create the main frame window
 {
   // create the main frame window

-  DnDFrame *frame = new DnDFrame(NULL, "Drag & Drop wxWindows App", 
+  DnDFrame *frame = new DnDFrame((wxFrame  *) NULL, "Drag & Drop wxWindows App",

                                  50, 50, 450, 340);
 
   // activate it
                                  50, 50, 450, 340);
 
   // activate it


@@ -127,20 +143,39 @@ bool DnDApp::OnInit(void)
 }
 
 DnDFrame::DnDFrame(wxFrame *frame, char *title, int x, int y, int w, int h)
 }
 
 DnDFrame::DnDFrame(wxFrame *frame, char *title, int x, int y, int w, int h)

-        : wxFrame(frame, -1, title, wxPoint(x, y), wxSize(w, h))
+        : wxFrame(frame, -1, title, wxPoint(x, y), wxSize(w, h)),
+          m_strText("wxWindows drag & drop works :-)")
+

 {
 {

-  SetIcon(wxIcon("mondrian"));
+//  SetBackgroundColour(* wxWHITE);
+
+  // frame icon and status bar
+  SetIcon(wxICON(mondrian));
+
+//  const int widths[] = { -1 };
+  CreateStatusBar();

 
   // construct menu
   wxMenu *file_menu = new wxMenu;
 
   // construct menu
   wxMenu *file_menu = new wxMenu;

-  file_menu->Append(Menu_Help, "&Help");
-  file_menu->Append(Menu_About, "&About");
+  file_menu->Append(Menu_Drag, "&Test drag...");

   file_menu->AppendSeparator();
   file_menu->Append(Menu_Quit, "E&xit");
   file_menu->AppendSeparator();
   file_menu->Append(Menu_Quit, "E&xit");

+
+  wxMenu *log_menu = new wxMenu;
+  log_menu->Append(Menu_Clear, "Clear");
+
+  wxMenu *help_menu = new wxMenu;
+  help_menu->Append(Menu_Help, "&Help...");
+  help_menu->AppendSeparator();
+  help_menu->Append(Menu_About, "&About");
+

   wxMenuBar *menu_bar = new wxMenuBar;
   menu_bar->Append(file_menu, "&File");
   wxMenuBar *menu_bar = new wxMenuBar;
   menu_bar->Append(file_menu, "&File");

+  menu_bar->Append(log_menu,  "&Log");
+  menu_bar->Append(help_menu, "&Help");
+

   SetMenuBar(menu_bar);
   SetMenuBar(menu_bar);

-  
+

   // make a panel with 3 subwindows
   wxPoint pos(0, 0);
   wxSize  size(400, 200);
   // make a panel with 3 subwindows
   wxPoint pos(0, 0);
   wxSize  size(400, 200);


@@ -149,41 +184,43 @@ DnDFrame::DnDFrame(wxFrame *frame, char *title, int x, int y, int w, int h)
 
   m_ctrlFile  = new wxListBox(this, -1, pos, size, 1, &strFile, wxLB_HSCROLL);
   m_ctrlText  = new wxListBox(this, -1, pos, size, 1, &strText, wxLB_HSCROLL);
 
   m_ctrlFile  = new wxListBox(this, -1, pos, size, 1, &strFile, wxLB_HSCROLL);
   m_ctrlText  = new wxListBox(this, -1, pos, size, 1, &strText, wxLB_HSCROLL);

-  m_ctrlLog   = new wxTextCtrl(this, -1, "", pos, size, 
-                               wxTE_MULTILINE | wxTE_READONLY | 
-                               wxSUNKEN_BORDER| wxHSCROLL);
+
+  m_ctrlLog   = new wxTextCtrl(this, -1, "", pos, size,
+                               wxTE_MULTILINE | wxTE_READONLY |
+                               wxSUNKEN_BORDER );

 
   // redirect log messages to the text window (don't forget to delete it!)
 
   // redirect log messages to the text window (don't forget to delete it!)

-//  m_pLog = new wxLogTextCtrl(m_ctrlLog);
-  m_pLog = NULL;
-  m_pLogPrev = wxLogTarget::SetActiveTarget(m_pLog);
+  m_pLog = new wxLogTextCtrl(m_ctrlLog);
+  m_pLogPrev = wxLog::SetActiveTarget(m_pLog);

 
   // associate drop targets with 2 text controls
   m_ctrlFile->SetDropTarget(new DnDFile(m_ctrlFile));
 
   // associate drop targets with 2 text controls
   m_ctrlFile->SetDropTarget(new DnDFile(m_ctrlFile));

-  m_ctrlText->SetDropTarget(new DnDText(m_ctrlText));
+  m_ctrlText->SetDropTarget( new DnDText(m_ctrlText) );

 
   wxLayoutConstraints *c;
 
 
   wxLayoutConstraints *c;
 

+  // Top-left listbox

   c = new wxLayoutConstraints;
   c = new wxLayoutConstraints;

-  c->left.SameAs               (this, wxLeft);
-  c->top.SameAs                        (this, wxTop);
+  c->left.SameAs(this, wxLeft);
+  c->top.SameAs(this, wxTop);

   c->right.PercentOf(this, wxRight, 50);
   c->right.PercentOf(this, wxRight, 50);

-  c->height.PercentOf(this, wxHeight, 50);
+  c->height.PercentOf(this, wxHeight, 40);

   m_ctrlFile->SetConstraints(c);
 
   m_ctrlFile->SetConstraints(c);
 

+  // Top-right listbox

   c = new wxLayoutConstraints;
   c->left.SameAs    (m_ctrlFile, wxRight);
   c->top.SameAs     (this, wxTop);
   c->right.SameAs   (this, wxRight);
   c = new wxLayoutConstraints;
   c->left.SameAs    (m_ctrlFile, wxRight);
   c->top.SameAs     (this, wxTop);
   c->right.SameAs   (this, wxRight);

-  c->height.PercentOf(this, wxHeight, 50);
+  c->height.PercentOf(this, wxHeight, 40);

   m_ctrlText->SetConstraints(c);
 
   m_ctrlText->SetConstraints(c);
 

+  // Lower text control

   c = new wxLayoutConstraints;
   c->left.SameAs    (this, wxLeft);
   c->right.SameAs   (this, wxRight);
   c = new wxLayoutConstraints;
   c->left.SameAs    (this, wxLeft);
   c->right.SameAs   (this, wxRight);

-  c->height.PercentOf(this, wxHeight, 50);
-  c->bottom.SameAs(this, wxBottom);
-
+  c->height.PercentOf(this, wxHeight, 40);
+  c->top.SameAs(m_ctrlText, wxBottom);

   m_ctrlLog->SetConstraints(c);
 
   SetAutoLayout(TRUE);
   m_ctrlLog->SetConstraints(c);
 
   SetAutoLayout(TRUE);


@@ -194,11 +231,37 @@ void DnDFrame::OnQuit(wxCommandEvent& /* event */)
   Close(TRUE);
 }
 
   Close(TRUE);
 }
 

+void DnDFrame::OnPaint(wxPaintEvent& /*event*/)
+{
+  int w = 0;
+  int h = 0;
+  GetClientSize( &w, &h );
+
+  wxPaintDC dc(this);
+  dc.SetFont( wxFont( 24, wxDECORATIVE, wxNORMAL, wxNORMAL, FALSE, "charter" ) );
+  dc.DrawText( "Drag text from here!", 20, h-35 );
+}
+
+void DnDFrame::OnDrag(wxCommandEvent& /* event */)
+{
+  wxString strText = wxGetTextFromUser
+  (
+    "After you enter text in this dialog, press any mouse\n"
+    "button in the bottom (empty) part of the frame and \n"
+    "drag it anywhere - you will be in fact dragging the\n"
+    "text object containing this text",
+    "Please enter some text", m_strText, this
+  );
+
+  m_strText = strText;
+}
+

 void DnDFrame::OnAbout(wxCommandEvent& /* event */)
 {
 void DnDFrame::OnAbout(wxCommandEvent& /* event */)
 {

-  wxMessageDialog dialog(this, 
+  wxMessageDialog dialog(this,

                          "Drag-&-Drop Demo\n"
                          "Drag-&-Drop Demo\n"

-                         "Please see File|Help for details",
+                         "Please see \"Help|Help...\" for details\n"
+                         "Copyright (c) 1998 Vadim Zeitlin",

                          "About wxDnD");
 
   dialog.ShowModal();
                          "About wxDnD");
 
   dialog.ShowModal();


@@ -206,36 +269,79 @@ void DnDFrame::OnAbout(wxCommandEvent& /* event */)
 
 void DnDFrame::OnHelp(wxCommandEvent& /* event */)
 {
 
 void DnDFrame::OnHelp(wxCommandEvent& /* event */)
 {

-  wxMessageDialog dialog(this, 
-"This small program demonstrates drag & drop support in wxWindows.\n"
-"The program window consists of 3 parts: the bottom pane is for\n"
-"debug messages, so that you can see what's going on inside.\n"
-"The top part is split into 2 listboxes, the left one accepts\n"
-"files and the right one accepts text.\n"
+  wxMessageDialog dialog(this,
+"This small program demonstrates drag & drop support in wxWindows. The program window\n"
+"consists of 3 parts: the bottom pane is for debug messages, so that you can see what's\n"
+"going on inside. The top part is split into 2 listboxes, the left one accepts files\n"
+"and the right one accepts text.\n"
+"\n"
+"To test wxDropTarget: open wordpad (write.exe), select some text in it and drag it to\n"
+"the right listbox (you'll notice the usual visual feedback, i.e. the cursor will change).\n"
+"Also, try dragging some files (you can select several at once) from Windows Explorer (or \n"
+"File Manager) to the left pane. Hold down Ctrl/Shift keys when you drop text (doesn't \n"
+"work with files) and see what changes.\n"

 "\n"
 "\n"

-"To test it: open wordpad (write.exe), select some text in it and\n"
-"drag it to the right listbox (you'll notice the usual visual\n"
-"feedback, i.e. the cursor will change). Also, try dragging some\n"
-"files (you can select several at once) from Windows Explorer (or\n"
-"File Manager) to the left pane. Hold down Ctrl/Shift keys when\n"
-"you drop text (doesn't work with files) and see what changes.\n"
+"To test wxDropSource: just press any mouse button on the empty zone of the window and drag\n"
+"it to wordpad or any other droptarget accepting text (and of course you can just drag it\n"
+"to the right pane). Due to a lot of trace messages, the cursor might take some time to \n"
+"change, don't release the mouse button until it does. You can change the string being\n"
+"dragged in in \"File|Test drag...\" dialog.\n"

 "\n"
 "\n"

-"Please address any questions/bug reports/suggestions &c to\n"
+"\n"
+"Please send all questions/bug reports/suggestions &c to \n"

 "Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>",
                         "wxDnD Help");
 
   dialog.ShowModal();
 }
 
 "Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>",
                         "wxDnD Help");
 
   dialog.ShowModal();
 }
 

-bool DnDFrame::OnClose() 
-{ 
-  return TRUE; 
+void DnDFrame::OnLogClear(wxCommandEvent& /* event */ )
+{
+  m_ctrlLog->Clear();
+}
+
+void DnDFrame::OnLeftDown(wxMouseEvent &WXUNUSED(event) )
+{
+  if ( !m_strText.IsEmpty() ) 
+  {
+    // start drag operation
+#ifdef __WXMSW__
+    wxTextDataObject textData(m_strText);
+    wxDropSource dragSource( textData, this );
+#else
+    wxDropSource dragSource( new wxTextDataObject (m_strText), this, wxIcon(mondrian_xpm) );
+#endif
+    const char *pc;
+
+    switch ( dragSource.DoDragDrop(TRUE) ) 
+    {
+      case wxDragError:   pc = "Error!";    break;
+      case wxDragNone:    pc = "Nothing";   break;
+      case wxDragCopy:    pc = "Copied";    break;
+      case wxDragMove:    pc = "Moved";     break;
+      case wxDragCancel:  pc = "Cancelled"; break;
+      default:                    pc = "Huh?";      break;
+    }
+
+    SetStatusText(wxString("Drag result: ") + pc);
+  }
+}
+
+void DnDFrame::OnRightDown(wxMouseEvent &event )
+{
+  wxMenu *menu = new wxMenu;
+
+  menu->Append(Menu_Drag, "&Test drag...");
+  menu->Append(Menu_About, "&About");
+  menu->Append(Menu_Quit, "E&xit");
+
+  PopupMenu( menu, event.GetX(), event.GetY() );

 }
 
 DnDFrame::~DnDFrame()
 {
   if ( m_pLog != NULL ) {
 }
 
 DnDFrame::~DnDFrame()
 {
   if ( m_pLog != NULL ) {

-    if ( wxLogTarget::SetActiveTarget(m_pLogPrev) == m_pLog )
+    if ( wxLog::SetActiveTarget(m_pLogPrev) == m_pLog )

       delete m_pLog;
   }
 }
       delete m_pLog;
   }
 }


@@ -243,18 +349,18 @@ DnDFrame::~DnDFrame()
 // ----------------------------------------------------------------------------
 // Notifications called by the base class
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // Notifications called by the base class
 // ----------------------------------------------------------------------------

-bool DnDText::OnDropText(long, long, const char *psz)
+bool DnDText::OnDropText( long, long, const wxChar *psz )

 {
   m_pOwner->Append(psz);
 
   return TRUE;
 }
 
 {
   m_pOwner->Append(psz);
 
   return TRUE;
 }
 

-bool DnDFile::OnDropFiles(long, long, size_t nFiles, 
-                          const char * const aszFiles[])
+bool DnDFile::OnDropFiles( long, long, size_t nFiles,
+                           const wxChar* const aszFiles[])

 {
   wxString str;
 {
   wxString str;

-  str.Printf("%d files dropped", nFiles);
+  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(str);
   for ( size_t n = 0; n < nFiles; n++ ) {
     m_pOwner->Append(aszFiles[n]);