wxWidgets/src/generic/choicbkg.cpp
2005-02-10 21:33:56 +00:00

429 lines
12 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// Name: generic/choicbkg.cpp
// Purpose: generic implementation of wxChoicebook
// Author: Vadim Zeitlin
// Modified by: Wlodzimierz ABX Skiba from generic/listbkg.cpp
// Created: 15.09.04
// RCS-ID: $Id$
// Copyright: (c) Vadim Zeitlin, Wlodzimierz Skiba
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "choicebook.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_CHOICEBOOK
#include "wx/choice.h"
#include "wx/choicebk.h"
#include "wx/imaglist.h"
#include "wx/settings.h"
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// margin between the choice and the page
#if defined(__WXWINCE__)
const wxCoord MARGIN = 1;
#else
const wxCoord MARGIN = 5;
#endif
// ----------------------------------------------------------------------------
// various wxWidgets macros
// ----------------------------------------------------------------------------
// check that the page index is valid
#define IS_VALID_PAGE(nPage) ((nPage) < GetPageCount())
// ----------------------------------------------------------------------------
// event table
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxChoicebook, wxControl)
IMPLEMENT_DYNAMIC_CLASS(wxChoicebookEvent, wxNotifyEvent)
const wxEventType wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGING = wxNewEventType();
const wxEventType wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGED = wxNewEventType();
const int wxID_CHOICEBOOKCHOICE = wxNewId();
BEGIN_EVENT_TABLE(wxChoicebook, wxBookCtrlBase)
EVT_SIZE(wxChoicebook::OnSize)
EVT_CHOICE(wxID_CHOICEBOOKCHOICE, wxChoicebook::OnChoiceSelected)
END_EVENT_TABLE()
// ============================================================================
// wxChoicebook implementation
// ============================================================================
// ----------------------------------------------------------------------------
// wxChoicebook creation
// ----------------------------------------------------------------------------
void wxChoicebook::Init()
{
m_choice = NULL;
m_selection = wxNOT_FOUND;
}
bool
wxChoicebook::Create(wxWindow *parent,
wxWindowID id,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name)
{
if ( (style & wxCHB_ALIGN_MASK) == wxCHB_DEFAULT )
{
style |= wxCHB_TOP;
}
// no border for this control, it doesn't look nice together with
// wxChoice border
style &= ~wxBORDER_MASK;
style |= wxBORDER_NONE;
if ( !wxControl::Create(parent, id, pos, size, style,
wxDefaultValidator, name) )
return false;
m_choice = new wxChoice
(
this,
wxID_CHOICEBOOKCHOICE,
wxDefaultPosition,
wxDefaultSize
);
return true;
}
// ----------------------------------------------------------------------------
// wxChoicebook geometry management
// ----------------------------------------------------------------------------
wxSize wxChoicebook::GetChoiceSize() const
{
const wxSize sizeClient = GetClientSize(),
sizeChoice = m_choice->GetBestSize();
wxSize size;
if ( IsVertical() )
{
size.x = sizeClient.x;
size.y = sizeChoice.y;
}
else // left/right aligned
{
size.x = sizeChoice.x;
size.y = sizeClient.y;
}
return size;
}
wxRect wxChoicebook::GetPageRect() const
{
const wxSize sizeChoice = m_choice->GetSize();
wxPoint pt;
wxRect rectPage(pt, GetClientSize());
switch ( GetWindowStyle() & wxCHB_ALIGN_MASK )
{
default:
wxFAIL_MSG( _T("unexpected wxChoicebook alignment") );
// fall through
case wxCHB_TOP:
rectPage.y = sizeChoice.y + MARGIN;
// fall through
case wxCHB_BOTTOM:
rectPage.height -= sizeChoice.y + MARGIN;
break;
case wxCHB_LEFT:
rectPage.x = sizeChoice.x + MARGIN;
// fall through
case wxCHB_RIGHT:
rectPage.width -= sizeChoice.x + MARGIN;
break;
}
return rectPage;
}
void wxChoicebook::OnSize(wxSizeEvent& event)
{
event.Skip();
if ( !m_choice )
{
// we're not fully created yet
return;
}
// resize the choice control and the page area to fit inside our new size
const wxSize sizeClient = GetClientSize(),
sizeChoice = GetChoiceSize();
wxPoint posChoice;
switch ( GetWindowStyle() & wxCHB_ALIGN_MASK )
{
default:
wxFAIL_MSG( _T("unexpected wxChoicebook alignment") );
// fall through
case wxCHB_TOP:
case wxCHB_LEFT:
// posChoice is already ok
break;
case wxCHB_BOTTOM:
posChoice.y = sizeClient.y - sizeChoice.y;
break;
case wxCHB_RIGHT:
posChoice.x = sizeClient.x - sizeChoice.x;
break;
}
m_choice->Move(posChoice.x, posChoice.y);
m_choice->SetSize(sizeChoice.x, sizeChoice.y);
// resize the currently shown page
if ( m_selection != wxNOT_FOUND )
{
wxWindow *page = m_pages[m_selection];
wxCHECK_RET( page, _T("NULL page in wxChoicebook?") );
page->SetSize(GetPageRect());
}
}
wxSize wxChoicebook::CalcSizeFromPage(const wxSize& sizePage) const
{
// we need to add the size of the choice control and the margin
const wxSize sizeChoice = GetChoiceSize();
wxSize size = sizePage;
if ( IsVertical() )
{
size.y += sizeChoice.y + MARGIN;
}
else // left/right aligned
{
size.x += sizeChoice.x + MARGIN;
}
return size;
}
// ----------------------------------------------------------------------------
// accessing the pages
// ----------------------------------------------------------------------------
bool wxChoicebook::SetPageText(size_t n, const wxString& strText)
{
m_choice->SetString(n, strText);
return true;
}
wxString wxChoicebook::GetPageText(size_t n) const
{
return m_choice->GetString(n);
}
int wxChoicebook::GetPageImage(size_t WXUNUSED(n)) const
{
wxFAIL_MSG( _T("wxChoicebook::GetPageImage() not implemented") );
return -1;
}
bool wxChoicebook::SetPageImage(size_t WXUNUSED(n), int WXUNUSED(imageId))
{
wxFAIL_MSG( _T("wxChoicebook::SetPageImage() not implemented") );
return false;
}
// ----------------------------------------------------------------------------
// image list stuff
// ----------------------------------------------------------------------------
void wxChoicebook::SetImageList(wxImageList *imageList)
{
// TODO: can be implemented in form of static bitmap near choice control
wxBookCtrlBase::SetImageList(imageList);
}
// ----------------------------------------------------------------------------
// selection
// ----------------------------------------------------------------------------
int wxChoicebook::GetSelection() const
{
return m_selection;
}
int wxChoicebook::SetSelection(size_t n)
{
wxCHECK_MSG( IS_VALID_PAGE(n), wxNOT_FOUND,
wxT("invalid page index in wxChoicebook::SetSelection()") );
const int oldSel = m_selection;
if ( int(n) != m_selection )
{
wxChoicebookEvent event(wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGING, m_windowId);
event.SetSelection(n);
event.SetOldSelection(m_selection);
event.SetEventObject(this);
if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() )
{
if ( m_selection != wxNOT_FOUND )
m_pages[m_selection]->Hide();
wxWindow *page = m_pages[n];
page->SetSize(GetPageRect());
page->Show();
// change m_selection now to ignore the selection change event
m_selection = n;
m_choice->Select(n);
// program allows the page change
event.SetEventType(wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGED);
(void)GetEventHandler()->ProcessEvent(event);
}
}
return oldSel;
}
// ----------------------------------------------------------------------------
// adding/removing the pages
// ----------------------------------------------------------------------------
bool
wxChoicebook::InsertPage(size_t n,
wxWindow *page,
const wxString& text,
bool bSelect,
int imageId)
{
if ( !wxBookCtrlBase::InsertPage(n, page, text, bSelect, imageId) )
return false;
m_choice->Insert(text, n);
// if the inserted page is before the selected one, we must update the
// index of the selected page
if ( int(n) <= m_selection )
{
// one extra page added
m_selection++;
m_choice->Select(m_selection);
}
// some page should be selected: either this one or the first one if there
// is still no selection
int selNew = -1;
if ( bSelect )
selNew = n;
else if ( m_selection == -1 )
selNew = 0;
if ( selNew != m_selection )
page->Hide();
if ( selNew != -1 )
SetSelection(selNew);
InvalidateBestSize();
return true;
}
wxWindow *wxChoicebook::DoRemovePage(size_t page)
{
const int page_count = GetPageCount();
wxWindow *win = wxBookCtrlBase::DoRemovePage(page);
if ( win )
{
m_choice->Delete(page);
if (m_selection >= (int)page)
{
// force new sel valid if possible
int sel = m_selection - 1;
if (page_count == 1)
sel = wxNOT_FOUND;
else if ((page_count == 2) || (sel == -1))
sel = 0;
// force sel invalid if deleting current page - don't try to hide it
m_selection = (m_selection == (int)page) ? wxNOT_FOUND : m_selection - 1;
if ((sel != wxNOT_FOUND) && (sel != m_selection))
SetSelection(sel);
}
}
return win;
}
bool wxChoicebook::DeleteAllPages()
{
m_choice->Clear();
return wxBookCtrlBase::DeleteAllPages();
}
// ----------------------------------------------------------------------------
// wxChoicebook events
// ----------------------------------------------------------------------------
void wxChoicebook::OnChoiceSelected(wxCommandEvent& eventChoice)
{
const int selNew = eventChoice.GetSelection();
if ( selNew == m_selection )
{
// this event can only come from our own Select(m_selection) below
// which we call when the page change is vetoed, so we should simply
// ignore it
return;
}
SetSelection(selNew);
// change wasn't allowed, return to previous state
if (m_selection != selNew)
m_choice->Select(m_selection);
}
#endif // wxUSE_CHOICEBOOK