notebook.cpp

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///////////////////////////////////////////////////////////////////////////////
// Name:        notebook.cpp
// Purpose:     implementation of wxNotebook
// Author:      Julian Smart
// Modified by:
// Created:     17/09/98
// RCS-ID:      $Id: notebook.cpp,v 1.36 2005/09/17 21:00:47 VZ Exp $
// Copyright:   (c) Julian Smart
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "notebook.h"
#endif

#ifdef __VMS
#pragma message disable unscomzer
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
#pragma hdrstop
#endif

#ifndef __WXPALMOS__

#include  "wx/string.h"
#include  "wx/log.h"
#include  "wx/settings.h"
#include  "wx/generic/imaglist.h"
#include  "wx/notebook.h"
#include  "wx/dcclient.h"
#include  "wx/generic/tabg.h"

// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------

// check that the page index is valid
#define IS_VALID_PAGE(nPage) ((nPage) < GetPageCount())

// ----------------------------------------------------------------------------
// event table
// ----------------------------------------------------------------------------

DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)

BEGIN_EVENT_TABLE(wxNotebook, wxControl)
    EVT_NOTEBOOK_PAGE_CHANGED(wxID_ANY, wxNotebook::OnSelChange)
    EVT_SIZE(wxNotebook::OnSize)
    EVT_PAINT(wxNotebook::OnPaint)
    EVT_MOUSE_EVENTS(wxNotebook::OnMouseEvent)
    EVT_SET_FOCUS(wxNotebook::OnSetFocus)
    EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
END_EVENT_TABLE()

IMPLEMENT_DYNAMIC_CLASS(wxNotebook, wxControl)
IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxCommandEvent)

// ============================================================================
// implementation
// ============================================================================

// ============================================================================
// Private class
// ============================================================================

// This reuses wxTabView to draw the tabs.
class WXDLLEXPORT wxNotebookTabView: public wxTabView
{
DECLARE_DYNAMIC_CLASS(wxNotebookTabView)
public:
  wxNotebookTabView(wxNotebook* notebook, long style = wxTAB_STYLE_DRAW_BOX | wxTAB_STYLE_COLOUR_INTERIOR);
  ~wxNotebookTabView(void);

  // Called when a tab is activated
  virtual void OnTabActivate(int activateId, int deactivateId);
  // Allows vetoing
  virtual bool OnTabPreActivate(int activateId, int deactivateId);

protected:
   wxNotebook*      m_notebook;
};

// ----------------------------------------------------------------------------
// wxNotebook construction
// ----------------------------------------------------------------------------

// common part of all ctors
void wxNotebook::Init()
{
    m_tabView = (wxNotebookTabView*) NULL;
    m_nSelection = -1;
}

// default for dynamic class
wxNotebook::wxNotebook()
{
    Init();
}

// the same arguments as for wxControl
wxNotebook::wxNotebook(wxWindow *parent,
                       wxWindowID id,
                       const wxPoint& pos,
                       const wxSize& size,
                       long style,
                       const wxString& name)
{
    Init();

    Create(parent, id, pos, size, style, name);
}

// Create() function
bool wxNotebook::Create(wxWindow *parent,
                        wxWindowID id,
                        const wxPoint& pos,
                        const wxSize& size,
                        long style,
                        const wxString& name)
{
    // base init
    SetName(name);

    m_windowId = id == wxID_ANY ? NewControlId() : id;

    if (!wxControl::Create(parent, id, pos, size, style|wxNO_BORDER, wxDefaultValidator, name))
        return false;

    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));

    SetTabView(new wxNotebookTabView(this));

    return true;
}

// dtor
wxNotebook::~wxNotebook()
{
    delete m_tabView;
}

// ----------------------------------------------------------------------------
// wxNotebook accessors
// ----------------------------------------------------------------------------
int wxNotebook::GetRowCount() const
{
    // TODO
    return 0;
}

int wxNotebook::SetSelection(size_t nPage)
{
    wxASSERT( IS_VALID_PAGE(nPage) );

    wxNotebookPage* pPage = GetPage(nPage);

    m_tabView->SetTabSelection((int) (long) pPage);

    // TODO
    return 0;
}

#if 0
void wxNotebook::AdvanceSelection(bool bForward)
{
    int nSel = GetSelection();
    int nMax = GetPageCount() - 1;
    if ( bForward )
        SetSelection(nSel == nMax ? 0 : nSel + 1);
    else
        SetSelection(nSel == 0 ? nMax : nSel - 1);
}
#endif

bool wxNotebook::SetPageText(size_t nPage, const wxString& strText)
{
    wxASSERT( IS_VALID_PAGE(nPage) );

    wxNotebookPage* page = GetPage(nPage);
    if (page)
    {
        m_tabView->SetTabText((int) (long) page, strText);
        Refresh();
        return true;
    }

    return false;
}

wxString wxNotebook::GetPageText(size_t nPage) const
{
    wxASSERT( IS_VALID_PAGE(nPage) );

    wxNotebookPage* page = ((wxNotebook*)this)->GetPage(nPage);
    if (page)
        return m_tabView->GetTabText((int) (long) page);
    else
        return wxEmptyString;
}

int wxNotebook::GetPageImage(size_t nPage) const
{
    wxASSERT( IS_VALID_PAGE(nPage) );

    // TODO
    return 0;
}

bool wxNotebook::SetPageImage(size_t nPage, int nImage)
{
    wxASSERT( IS_VALID_PAGE(nPage) );

    // TODO
    return false;
}

// set the size (the same for all pages)
void wxNotebook::SetPageSize(const wxSize& size)
{
    // TODO
}

// set the padding between tabs (in pixels)
void wxNotebook::SetPadding(const wxSize& padding)
{
    // TODO
}

// set the size of the tabs for wxNB_FIXEDWIDTH controls
void wxNotebook::SetTabSize(const wxSize& sz)
{
    // TODO
}

// ----------------------------------------------------------------------------
// wxNotebook operations
// ----------------------------------------------------------------------------

// remove one page from the notebook and delete it
bool wxNotebook::DeletePage(size_t nPage)
{
    wxCHECK( IS_VALID_PAGE(nPage), false );

    if (m_nSelection != -1)
    {
        m_pages[m_nSelection]->Show(false);
        m_pages[m_nSelection]->Lower();
    }

    wxNotebookPage* pPage = GetPage(nPage);

    m_tabView->RemoveTab((int) (long) pPage);

    m_pages.Remove(pPage);
    delete pPage;

    if (m_pages.GetCount() == 0)
    {
      m_nSelection = -1;
      m_tabView->SetTabSelection(-1, false);
    }
    else if (m_nSelection > -1)
    {
      m_nSelection = -1;

      m_tabView->SetTabSelection((int) (long) GetPage(0), false);

      if (m_nSelection != 0)
        ChangePage(-1, 0);
    }

    RefreshLayout(false);

    return true;
}

bool wxNotebook::DeletePage(wxNotebookPage* page)
{
    int pagePos = FindPagePosition(page);
    if (pagePos > -1)
        return DeletePage(pagePos);
    else
        return false;
}

bool wxNotebook::RemovePage(size_t nPage)
{
    return DoRemovePage(nPage) != NULL;
}

// remove one page from the notebook
wxWindow* wxNotebook::DoRemovePage(size_t nPage)
{
    wxCHECK( IS_VALID_PAGE(nPage), NULL );

    m_pages[nPage]->Show(false);
    //    m_pages[nPage]->Lower();

    wxNotebookPage* pPage = GetPage(nPage);

    m_tabView->RemoveTab((int) (long) pPage);

    m_pages.Remove(pPage);

    if (m_pages.GetCount() == 0)
    {
      m_nSelection = -1;
      m_tabView->SetTabSelection(-1, true);
    }
    else if (m_nSelection > -1)
    {
      // Only change the selection if the page we
      // deleted was the selection.
      if (nPage == (size_t)m_nSelection)
      {
         m_nSelection = -1;
         // Select the first tab. Generates a ChangePage.
         m_tabView->SetTabSelection(0, true);
      }
      else
      {
        // We must adjust which tab we think is selected.
        // If greater than the page we deleted, it must be moved down
        // a notch.
        if (size_t(m_nSelection) > nPage)
          m_nSelection -- ;
      }
    }

    RefreshLayout(false);

    return pPage;
}

bool wxNotebook::RemovePage(wxNotebookPage* page)
{
    int pagePos = FindPagePosition(page);
    if (pagePos > -1)
        return RemovePage(pagePos);
    else
        return false;
}

// Find the position of the wxNotebookPage, -1 if not found.
int wxNotebook::FindPagePosition(wxNotebookPage* page) const
{
    size_t nPageCount = GetPageCount();
    size_t nPage;
    for ( nPage = 0; nPage < nPageCount; nPage++ )