proplist.cpp

很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.

IMPLEMENT_DYNAMIC_CLASS(wxColourListValidator, wxPropertyListValidator)

wxColourListValidator::wxColourListValidator(long flags):
  wxPropertyListValidator(flags)
{
}

wxColourListValidator::~wxColourListValidator()
{
}

bool wxColourListValidator::OnCheckValue(wxProperty *WXUNUSED(property), wxPropertyListView *WXUNUSED(view), wxWindow *WXUNUSED(parentWindow))
{
  return true;
}

// Called when TICK is pressed or focus is lost or view wants to update
// the property list.
// Does the transferance from the property editing area to the property itself
bool wxColourListValidator::OnRetrieveValue(wxProperty *property, wxPropertyListView *view, wxWindow *WXUNUSED(parentWindow))
{
  if (!view->GetValueText())
    return false;
  wxString value(view->GetValueText()->GetValue());

  property->GetValue() = value ;
  return true;
}

// Called when TICK is pressed or focus is lost or view wants to update
// the property list.
// Does the transferance from the property editing area to the property itself
bool wxColourListValidator::OnDisplayValue(wxProperty *property, wxPropertyListView *view, wxWindow *WXUNUSED(parentWindow))
{
  if (!view->GetValueText())
    return false;
  wxString str(property->GetValue().GetStringRepresentation());
  view->GetValueText()->SetValue(str);
  return true;
}

// Called when the property is double clicked. Extra functionality can be provided,
// cycling through possible values.
bool wxColourListValidator::OnDoubleClick(wxProperty *property, wxPropertyListView *view, wxWindow *parentWindow)
{
  if (!view->GetValueText())
    return false;
  OnEdit(property, view, parentWindow);
  return true;
}

bool wxColourListValidator::OnPrepareControls(wxProperty *WXUNUSED(property), wxPropertyListView *view, wxWindow *WXUNUSED(parentWindow))
{
    if (view->GetConfirmButton())
        view->GetConfirmButton()->Enable();

    if (view->GetCancelButton())
        view->GetCancelButton()->Enable();

    if (view->GetEditButton())
        view->GetEditButton()->Enable();

    if (view->GetValueText())
        view->GetValueText()->Enable((GetFlags() & wxPROP_ALLOW_TEXT_EDITING) == wxPROP_ALLOW_TEXT_EDITING);

    return true;
}

void wxColourListValidator::OnEdit(wxProperty *property, wxPropertyListView *view, wxWindow *parentWindow)
{
  if (!view->GetValueText())
    return;

  wxChar *s = property->GetValue().StringValue();
  unsigned char r = 0;
  unsigned char g = 0;
  unsigned char b = 0;
  if (s)
  {
    r = (unsigned char)wxHexToDec(s);
    g = (unsigned char)wxHexToDec(s+2);
    b = (unsigned char)wxHexToDec(s+4);
  }

  wxColour col(r,g,b);

  wxColourData data;
  data.SetChooseFull(true);
  data.SetColour(col);

  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(parentWindow, &data);
  if (dialog.ShowModal() != wxID_CANCEL)
  {
    wxColourData retData = dialog.GetColourData();
    col = retData.GetColour();

    wxChar buf[7];
    wxDecToHex(col.Red(), buf);
    wxDecToHex(col.Green(), buf+2);
    wxDecToHex(col.Blue(), buf+4);

    property->GetValue() = wxString(buf);
    view->DisplayProperty(property);
    view->UpdatePropertyDisplayInList(property);
    view->OnPropertyChanged(property);
  }
}

///
/// List of strings validator. For this we need more user interface than
/// we get with a property list; so create a new dialog for editing the list.
///
IMPLEMENT_DYNAMIC_CLASS(wxListOfStringsListValidator, wxPropertyListValidator)

wxListOfStringsListValidator::wxListOfStringsListValidator(long flags):
  wxPropertyListValidator(flags)
{
}

bool wxListOfStringsListValidator::OnCheckValue(wxProperty *WXUNUSED(property), wxPropertyListView *WXUNUSED(view), wxWindow *WXUNUSED(parentWindow))
{
  // No constraints for an arbitrary, user-editable list of strings.
  return true;
}

// Called when TICK is pressed or focus is lost or view wants to update
// the property list.
// Does the transferance from the property editing area to the property itself.
// In this case, the user cannot directly edit the string list.
bool wxListOfStringsListValidator::OnRetrieveValue(wxProperty *WXUNUSED(property), wxPropertyListView *WXUNUSED(view), wxWindow *WXUNUSED(parentWindow))
{
  return true;
}

bool wxListOfStringsListValidator::OnDisplayValue(wxProperty *property, wxPropertyListView *view, wxWindow *WXUNUSED(parentWindow))
{
  if (!view->GetValueText())
    return false;
  wxString str(property->GetValue().GetStringRepresentation());
  view->GetValueText()->SetValue(str);
  return true;
}

bool wxListOfStringsListValidator::OnPrepareControls(wxProperty *WXUNUSED(property), wxPropertyListView *view, wxWindow *WXUNUSED(parentWindow))
{
  if (view->GetEditButton())
    view->GetEditButton()->Enable();
  if (view->GetValueText())
    view->GetValueText()->Disable();

  if (view->GetConfirmButton())
    view->GetConfirmButton()->Disable();
  if (view->GetCancelButton())
    view->GetCancelButton()->Disable();
  return true;
}

// Called when the property is double clicked. Extra functionality can be provided,
// cycling through possible values.
bool wxListOfStringsListValidator::OnDoubleClick(wxProperty *property, wxPropertyListView *view, wxWindow *parentWindow)
{
  OnEdit(property, view, parentWindow);
  return true;
}

void wxListOfStringsListValidator::OnEdit( wxProperty *property,
                                           wxPropertyListView *view,
                                           wxWindow *parentWindow )
{
  // Convert property value to a list of strings for editing
  wxStringList *stringList = new wxStringList;

  wxPropertyValue *expr = property->GetValue().GetFirst();
  while (expr)
  {
    wxChar *s = expr->StringValue();
    if (s)
      stringList->Add(s);
    expr = expr->GetNext();
  }

  wxString title(wxT("Editing "));
  title += property->GetName();

  if (EditStringList(parentWindow, stringList, title.GetData()))
  {
    wxPropertyValue& oldValue = property->GetValue();
    oldValue.ClearList();
    wxStringList::Node  *node = stringList->GetFirst();
    while (node)
    {
      wxChar *s = node->GetData();
      oldValue.Append(new wxPropertyValue(s));

      node = node->GetNext();
    }

    view->DisplayProperty(property);
    view->UpdatePropertyDisplayInList(property);
    view->OnPropertyChanged(property);
  }
  delete stringList;
}

class wxPropertyStringListEditorDialog: public wxDialog
{
public:
    wxPropertyStringListEditorDialog(wxWindow *parent, const wxString& title,
        const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize,
          long windowStyle = wxDEFAULT_DIALOG_STYLE, const wxString& name = wxT("stringEditorDialogBox")):
               wxDialog(parent, wxID_ANY, title, pos, size, windowStyle, name)
    {
        m_stringList = NULL;
        m_stringText = NULL;
        m_listBox = NULL;
        sm_dialogCancelled = false;
        m_currentSelection = -1;
    }
    ~wxPropertyStringListEditorDialog(void) {}
    void OnCloseWindow(wxCloseEvent& event);
    void SaveCurrentSelection(void);
    void ShowCurrentSelection(void);

    void OnOK(wxCommandEvent& event);
    void OnCancel(wxCommandEvent& event);
    void OnAdd(wxCommandEvent& event);
    void OnDelete(wxCommandEvent& event);
    void OnStrings(wxCommandEvent& event);
    void OnText(wxCommandEvent& event);

public:
    wxStringList*       m_stringList;
    wxListBox*          m_listBox;
    wxTextCtrl*         m_stringText;
    static bool         sm_dialogCancelled;
    int                 m_currentSelection;
DECLARE_EVENT_TABLE()
};

#define    wxID_PROP_SL_ADD            3000
#define    wxID_PROP_SL_DELETE            3001
#define    wxID_PROP_SL_STRINGS        3002
#define    wxID_PROP_SL_TEXT            3003

BEGIN_EVENT_TABLE(wxPropertyStringListEditorDialog, wxDialog)
    EVT_BUTTON(wxID_OK,                 wxPropertyStringListEditorDialog::OnOK)
    EVT_BUTTON(wxID_CANCEL,                wxPropertyStringListEditorDialog::OnCancel)
    EVT_BUTTON(wxID_PROP_SL_ADD,        wxPropertyStringListEditorDialog::OnAdd)
    EVT_BUTTON(wxID_PROP_SL_DELETE,        wxPropertyStringListEditorDialog::OnDelete)
    EVT_LISTBOX(wxID_PROP_SL_STRINGS,    wxPropertyStringListEditorDialog::OnStrings)
    EVT_TEXT_ENTER(wxID_PROP_SL_TEXT,            wxPropertyStringListEditorDialog::OnText)
    EVT_CLOSE(wxPropertyStringListEditorDialog::OnCloseWindow)
END_EVENT_TABLE()

class wxPropertyStringListEditorText: public wxTextCtrl
{
 public:
  wxPropertyStringListEditorText(wxWindow *parent, wxWindowID id, const wxString& val,
      const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize,
    long windowStyle = 0, const wxString& name = wxT("text")):
     wxTextCtrl(parent, id, val, pos, size, windowStyle, wxDefaultValidator, name)
  {
  }
  void OnKillFocus()
  {
    wxPropertyStringListEditorDialog *dialog = (wxPropertyStringListEditorDialog *)GetParent();
    dialog->SaveCurrentSelection();
  }
};

bool wxPropertyStringListEditorDialog::sm_dialogCancelled = false;

// Edit the string list.
bool wxListOfStringsListValidator::EditStringList(wxWindow *parent, wxStringList *stringList, const wxChar *title)
{
  int largeButtonWidth = 60;
  int largeButtonHeight = 25;

  wxBeginBusyCursor();
  wxPropertyStringListEditorDialog *dialog = new wxPropertyStringListEditorDialog(parent,
      title, wxPoint(10, 10), wxSize(400, 400));

  dialog->m_stringList = stringList;

  dialog->m_listBox = new wxListBox(dialog, wxID_PROP_SL_STRINGS,
    wxDefaultPosition, wxDefaultSize, 0, NULL, wxLB_SINGLE);

  dialog->m_stringText = new wxPropertyStringListEditorText(dialog,
       wxID_PROP_SL_TEXT, wxEmptyString, wxPoint(5, 240),
       wxSize(300, wxDefaultCoord), wxTE_PROCESS_ENTER);
  dialog->m_stringText->Disable();

  wxButton *addButton = new wxButton(dialog, wxID_PROP_SL_ADD, wxT("Add"), wxDefaultPosition, wxSize(largeButtonWidth, largeButtonHeight));
  wxButton *deleteButton = new wxButton(dialog, wxID_PROP_SL_DELETE, wxT("Delete"), wxDefaultPosition, wxSize(largeButtonWidth, largeButtonHeight));
  wxButton *cancelButton = new wxButton(dialog, wxID_CANCEL, wxT("Cancel"), wxDefaultPosition, wxSize(largeButtonWidth, largeButtonHeight));
  wxButton *okButton = new wxButton(dialog, wxID_OK, wxT("OK"), wxDefaultPosition, wxSize(largeButtonWidth, largeButtonHeight));

#ifndef __WXGTK__
  okButton->SetDefault();
#endif

  wxBoxSizer *m_bottom_sizer = new wxBoxSizer( wxHORIZONTAL );
  m_bottom_sizer->Add(addButton, 0, wxALL | wxALIGN_LEFT, 2 );
  m_bottom_sizer->Add(deleteButton, 0, wxALL | wxALIGN_LEFT, 2 );
  m_bottom_sizer->Add(1, 1, 1, wxEXPAND | wxALL);
  m_bottom_sizer->Add(cancelButton, 0, wxALL | wxALIGN_RIGHT, 2 );
  m_bottom_sizer->Add(okButton, 0, wxALL | wxALIGN_RIGHT, 2 );

  wxBoxSizer *m_sizer = new wxBoxSizer( wxVERTICAL );
  m_sizer->Add(dialog->m_listBox, 1, wxEXPAND | wxALL, 2 );
  m_sizer->Add(dialog->m_stringText, 0, wxEXPAND | wxALL, 2 );
  m_sizer->Add(m_bottom_sizer, 0, wxEXPAND | wxALL , 0 );

  dialog->SetSizer( m_sizer );
  m_sizer->SetSizeHints( dialog );

  wxStringList::Node    *node = stringList->GetFirst();
  while (node)
  {
    wxChar *str = node->GetData();
    // Save node as client data for each listbox item
    dialog->m_listBox->Append(str, (wxChar *)node);
    node = node->GetNext();
  }

  dialog->SetClientSize(310, 305);
  dialog->Layout();

  dialog->Centre(wxBOTH);
  wxEndBusyCursor();
  if (dialog->ShowModal() == wxID_CANCEL)
    return false;
  else
    return true;
}

/*
 * String list editor callbacks
 *
 */

void wxPropertyStringListEditorDialog::OnStrings(wxCommandEvent& WXUNUSED(event))
{
    int sel = m_listBox->GetSelection();
    if (sel != wxNOT_FOUND)
    {
        m_currentSelection = sel;

        ShowCurrentSelection();
    }
}

void wxPropertyStringListEditorDialog::OnDelete(wxCommandEvent& WXUNUSED(event))
{
    int sel = m_listBox->GetSelection();
    if (sel == wxNOT_FOUND)
        return;

    wxNode *node = (wxNode *)m_listBox->wxListBox::GetClientData(sel);
    if (!node)
        return;

    m_listBox->Delete(sel);
    delete[] (wxChar *)node->GetData();
    delete node;
    m_currentSelection = -1;
    m_stringText->SetValue(wxEmptyString);
}

void wxPropertyStringListEditorDialog::OnAdd(wxCommandEvent& WXUNUSED(event))
{
  SaveCurrentSelection();

  wxString initialText;
  wxNode *node = m_stringList->Add(initialText);
  m_listBox->Append(initialText, (void *)node);
  m_currentSelection = m_stringList->GetCount() - 1;
  m_listBox->SetSelection(m_currentSelection);
  ShowCurrentSelection();
  m_stringText->SetFocus();
}

void wxPropertyStringListEditorDialog::OnOK(wxCommandEvent& WXUNUSED(event))
{
    SaveCurrentSelection();
    EndModal(wxID_OK);
//  Close(true);
    this->Destroy();
}

void wxPropertyStringListEditorDialog::OnCancel(wxCommandEvent& WXUNUSED(event))
{
    sm_dialogCancelled = true;
    EndModal(wxID_CANCEL);
//  Close(true);
    this->Destroy();
}

void wxPropertyStringListEditorDialog::OnText(wxCommandEvent& event)
{
    if (event.GetEventType() == wxEVT_COMMAND_TEXT_ENTER)
    {
        SaveCurrentSelection();
    }
}

void
wxPropertyStringListEditorDialog::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
{
    SaveCurrentSelection();

    Destroy();
}

void wxPropertyStringListEditorDialog::SaveCurrentSelection()
{
  if (m_currentSelection == -1)
    return;

  wxNode *node = (wxNode *)m_listBox->wxListBox::GetClientData(m_currentSelection);
  if (!node)
    return;

  wxString txt(m_stringText->GetValue());
  if (node->GetData())
    delete[] (wxChar *)node->GetData();
  node->SetData((wxObject *)wxStrdup(txt));

  m_listBox->SetString(m_currentSelection, (wxChar *)node->GetData());
}

void wxPropertyStringListEditorDialog::ShowCurrentSelection()
{
  if (m_currentSelection == -1)
  {
    m_stringText->SetValue(wxEmptyString);
    return;
  }
  wxNode *node = (wxNode *)m_listBox->wxListBox::GetClientData(m_currentSelection);
  wxChar *txt = (wxChar *)node->GetData();
  m_stringText->SetValue(txt);
  m_stringText->Enable();
}


#endif // wxUSE_PROPSHEET