window.cpp

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

/////////////////////////////////////////////////////////////////////////////
// Name:        src/mac/classic/window.cpp
// Purpose:     wxWindowMac
// Author:      Stefan Csomor
// Modified by:
// Created:     1998-01-01
// RCS-ID:      $Id: window.cpp,v 1.31 2006/06/19 07:12:39 ABX Exp $
// Copyright:   (c) Stefan Csomor
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#include "wx/wxprec.h"

#include "wx/window.h"

#ifndef WX_PRECOMP
    #include "wx/log.h"
    #include "wx/app.h"
    #include "wx/utils.h"
    #include "wx/panel.h"
    #include "wx/frame.h"
    #include "wx/dc.h"
    #include "wx/dcclient.h"
    #include "wx/button.h"
    #include "wx/menu.h"
    #include "wx/dialog.h"
    #include "wx/settings.h"
    #include "wx/msgdlg.h"
    #include "wx/scrolbar.h"
    #include "wx/statbox.h"
    #include "wx/listbox.h"
    #include "wx/layout.h"
    #include "wx/statusbr.h"
    #include "wx/menuitem.h"
#endif

#include "wx/notebook.h"
#include "wx/tabctrl.h"
#include "wx/tooltip.h"
#include "wx/spinctrl.h"
#include "wx/geometry.h"

#if wxUSE_CARET
    #include "wx/caret.h"
#endif // wxUSE_CARET

#define wxWINDOW_HSCROLL 5998
#define wxWINDOW_VSCROLL 5997
#define MAC_SCROLLBAR_SIZE 16

#include "wx/mac/uma.h"
#ifndef __DARWIN__
#include <Windows.h>
#include <ToolUtils.h>
#endif

#if  wxUSE_DRAG_AND_DROP
#include "wx/dnd.h"
#endif

#include <string.h>

wxWindowMac* gFocusWindow = NULL ;

#ifdef __WXUNIVERSAL__
    IMPLEMENT_ABSTRACT_CLASS(wxWindowMac, wxWindowBase)
#else // __WXMAC__
    IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
#endif // __WXUNIVERSAL__/__WXMAC__

BEGIN_EVENT_TABLE(wxWindowMac, wxWindowBase)
  EVT_NC_PAINT(wxWindowMac::OnNcPaint)
  EVT_ERASE_BACKGROUND(wxWindowMac::OnEraseBackground)
  EVT_SET_FOCUS(wxWindowMac::OnSetFocus)
  EVT_MOUSE_EVENTS(wxWindowMac::OnMouseEvent)
END_EVENT_TABLE()

#define wxMAC_DEBUG_REDRAW 0
#ifndef wxMAC_DEBUG_REDRAW
#define wxMAC_DEBUG_REDRAW 0
#endif

#define wxMAC_USE_THEME_BORDER 0


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


// ----------------------------------------------------------------------------
// constructors and such
// ----------------------------------------------------------------------------

void wxWindowMac::Init()
{
    m_backgroundTransparent = false;

    // as all windows are created with WS_VISIBLE style...
    m_isShown = true;

    m_x = 0;
    m_y = 0 ;
    m_width = 0 ;
    m_height = 0 ;

    m_hScrollBar = NULL ;
    m_vScrollBar = NULL ;
}

// Destructor
wxWindowMac::~wxWindowMac()
{
    SendDestroyEvent();

    // deleting a window while it is shown invalidates the region
    if ( IsShown() ) {
        wxWindowMac* iter = this ;
        while( iter ) {
            if ( iter->IsTopLevel() )
            {
                Refresh() ;
                break ;
            }
            iter = iter->GetParent() ;

        }
    }

    m_isBeingDeleted = true;

#ifndef __WXUNIVERSAL__
    // VS: make sure there's no wxFrame with last focus set to us:
    for ( wxWindow *win = GetParent(); win; win = win->GetParent() )
    {
        wxFrame *frame = wxDynamicCast(win, wxFrame);
        if ( frame )
        {
            if ( frame->GetLastFocus() == this )
            {
                frame->SetLastFocus((wxWindow*)NULL);
            }
            break;
        }
    }
#endif // __WXUNIVERSAL__

    if ( s_lastMouseWindow == this )
    {
        s_lastMouseWindow = NULL ;
    }

    wxFrame* frame = wxDynamicCast( wxGetTopLevelParent( this ) , wxFrame ) ;
    if ( frame )
    {
        if ( frame->GetLastFocus() == this )
            frame->SetLastFocus( NULL ) ;
    }

    if ( gFocusWindow == this )
    {
        gFocusWindow = NULL ;
    }

    DestroyChildren();

    // delete our drop target if we've got one
#if wxUSE_DRAG_AND_DROP
    if ( m_dropTarget != NULL )
    {
        delete m_dropTarget;
        m_dropTarget = NULL;
    }
#endif // wxUSE_DRAG_AND_DROP
}

// Constructor
bool wxWindowMac::Create(wxWindowMac *parent, wxWindowID id,
           const wxPoint& pos,
           const wxSize& size,
           long style,
           const wxString& name)
{
    wxCHECK_MSG( parent, false, wxT("can't create wxWindowMac without parent") );

#if wxUSE_STATBOX
    // wxGTK doesn't allow to create controls with static box as the parent so
    // this will result in a crash when the program is ported to wxGTK - warn
    // about it
    //
    // the correct solution is to create the controls as siblings of the
    // static box
    wxASSERT_MSG( !wxDynamicCast(parent, wxStaticBox),
                  _T("wxStaticBox can't be used as a window parent!") );
#endif // wxUSE_STATBOX

    if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
        return false;

    parent->AddChild(this);

    m_x = (int)pos.x;
    m_y = (int)pos.y;
    AdjustForParentClientOrigin(m_x, m_y, wxSIZE_USE_EXISTING);
    m_width = WidthDefault( size.x );
    m_height = HeightDefault( size.y ) ;
#ifndef __WXUNIVERSAL__
    // Don't give scrollbars to wxControls unless they ask for them
    if ( (! IsKindOf(CLASSINFO(wxControl)) && ! IsKindOf(CLASSINFO(wxStatusBar))) ||
         (IsKindOf(CLASSINFO(wxControl)) && ( style & wxHSCROLL || style & wxVSCROLL)))
    {
        MacCreateScrollBars( style ) ;
    }
#endif

    wxWindowCreateEvent event(this);
    GetEventHandler()->AddPendingEvent(event);

    return true;
}

void wxWindowMac::SetFocus()
{
    if ( gFocusWindow == this )
        return ;

    if ( AcceptsFocus() )
    {
        if (gFocusWindow )
        {
#if wxUSE_CARET
                // Deal with caret
                if ( gFocusWindow->m_caret )
                {
                      gFocusWindow->m_caret->OnKillFocus();
                }
#endif // wxUSE_CARET
#ifndef __WXUNIVERSAL__
            wxControl* control = wxDynamicCast( gFocusWindow , wxControl ) ;
            if ( control && control->GetMacControl() )
            {
                UMASetKeyboardFocus( (WindowRef) gFocusWindow->MacGetRootWindow() , (ControlHandle) control->GetMacControl()  , kControlFocusNoPart ) ;
                control->MacRedrawControl() ;
            }
#endif
            // Without testing the window id, for some reason
            // a kill focus event can still be sent to
            // the control just being focussed.
            int thisId = this->m_windowId;
            int gFocusWindowId = gFocusWindow->m_windowId;
            if (gFocusWindowId != thisId)
            {
                wxFocusEvent event(wxEVT_KILL_FOCUS, gFocusWindow->m_windowId);
                event.SetEventObject(gFocusWindow);
                gFocusWindow->GetEventHandler()->ProcessEvent(event) ;
            }
        }
        gFocusWindow = this ;
        {
            #if wxUSE_CARET
            // Deal with caret
            if ( m_caret )
            {
                m_caret->OnSetFocus();
            }
            #endif // wxUSE_CARET
            // panel wants to track the window which was the last to have focus in it
            wxChildFocusEvent eventFocus(this);
            GetEventHandler()->ProcessEvent(eventFocus);

#ifndef __WXUNIVERSAL__
            wxControl* control = wxDynamicCast( gFocusWindow , wxControl ) ;
            if ( control && control->GetMacControl() )
            {
                UMASetKeyboardFocus( (WindowRef) gFocusWindow->MacGetRootWindow() , (ControlHandle) control->GetMacControl()  , kControlFocusNextPart ) ;
            }
#endif
            wxFocusEvent event(wxEVT_SET_FOCUS, m_windowId);
            event.SetEventObject(this);
            GetEventHandler()->ProcessEvent(event) ;
        }
    }
}

bool wxWindowMac::Enable(bool enable)
{
    if ( !wxWindowBase::Enable(enable) )
        return false;

    MacSuperEnabled( enable ) ;

    return true;
}

void wxWindowMac::DoCaptureMouse()
{
    wxTheApp->s_captureWindow = this ;
}

wxWindow* wxWindowBase::GetCapture()
{
    return wxTheApp->s_captureWindow ;
}

void wxWindowMac::DoReleaseMouse()
{
    wxTheApp->s_captureWindow = NULL ;
}

#if    wxUSE_DRAG_AND_DROP

void wxWindowMac::SetDropTarget(wxDropTarget *pDropTarget)
{
    if ( m_dropTarget != 0 ) {
        delete m_dropTarget;
    }

    m_dropTarget = pDropTarget;
    if ( m_dropTarget != 0 )
    {
        // TODO
    }
}

#endif

// Old style file-manager drag&drop
void wxWindowMac::DragAcceptFiles(bool accept)
{
    // TODO
}

// Get total size
void wxWindowMac::DoGetSize(int *x, int *y) const
{
     if(x)   *x = m_width ;
     if(y)   *y = m_height ;
}

void wxWindowMac::DoGetPosition(int *x, int *y) const
{
    int xx,yy;

    xx = m_x ;
    yy = m_y ;
    if ( !IsTopLevel() && GetParent())
    {
        wxPoint pt(GetParent()->GetClientAreaOrigin());
        xx -= pt.x;
        yy -= pt.y;
    }
    if(x)   *x = xx;
    if(y)   *y = yy;
}

#if wxUSE_MENUS
bool wxWindowMac::DoPopupMenu(wxMenu *menu, int x, int y)
{
    menu->SetInvokingWindow(this);
    menu->UpdateUI();

    if ( x == -1 && y == -1 )
    {
        wxPoint mouse = wxGetMousePosition();
        x = mouse.x; y = mouse.y;
    }
    else
    {
        ClientToScreen( &x , &y ) ;
    }

    menu->MacBeforeDisplay( true ) ;
    long menuResult = ::PopUpMenuSelect((MenuHandle) menu->GetHMenu() ,y,x, 0) ;
    if ( HiWord(menuResult) != 0 )
    {
        MenuCommand id ;
        GetMenuItemCommandID( GetMenuHandle(HiWord(menuResult)) , LoWord(menuResult) , &id ) ;
        wxMenuItem* item = NULL ;
        wxMenu* realmenu ;
        item = menu->FindItem(id, &realmenu) ;
        if (item->IsCheckable())
        {
            item->Check( !item->IsChecked() ) ;
        }
        menu->SendEvent( id , item->IsCheckable() ? item->IsChecked() : -1 ) ;
    }
    menu->MacAfterDisplay( true ) ;

    menu->SetInvokingWindow(NULL);

    return true;
}
#endif

void wxWindowMac::DoScreenToClient(int *x, int *y) const
{
    WindowRef window = (WindowRef) MacGetRootWindow() ;

    Point       localwhere = {0,0} ;

    if(x)   localwhere.h = * x ;
    if(y)   localwhere.v = * y ;

    GrafPtr     port ;
    ::GetPort( &port ) ;
    ::SetPort( UMAGetWindowPort( window ) ) ;
    ::GlobalToLocal( &localwhere ) ;
    ::SetPort( port ) ;

    if(x)   *x = localwhere.h ;
    if(y)   *y = localwhere.v ;

    MacRootWindowToWindow( x , y ) ;
    if ( x )
        *x -= MacGetLeftBorderSize() ;
    if ( y )
        *y -= MacGetTopBorderSize() ;
}

void wxWindowMac::DoClientToScreen(int *x, int *y) const
{
    WindowRef window = (WindowRef) MacGetRootWindow() ;

    if ( x )
        *x += MacGetLeftBorderSize() ;
    if ( y )
        *y += MacGetTopBorderSize() ;

    MacWindowToRootWindow( x , y ) ;

    Point       localwhere = { 0,0 };
    if(x)   localwhere.h = * x ;
    if(y)   localwhere.v = * y ;

    GrafPtr     port ;
    ::GetPort( &port ) ;
    ::SetPort( UMAGetWindowPort( window ) ) ;

    ::LocalToGlobal( &localwhere ) ;
    ::SetPort( port ) ;
    if(x)   *x = localwhere.h ;
    if(y)   *y = localwhere.v ;
}

void wxWindowMac::MacClientToRootWindow( int *x , int *y ) const
{
    wxPoint origin = GetClientAreaOrigin() ;
    if(x)   *x += origin.x ;
    if(y)   *y += origin.y ;

    MacWindowToRootWindow( x , y ) ;
}

void wxWindowMac::MacRootWindowToClient( int *x , int *y ) const
{
    wxPoint origin = GetClientAreaOrigin() ;
    MacRootWindowToWindow( x , y ) ;
    if(x)   *x -= origin.x ;
    if(y)   *y -= origin.y ;
}

void wxWindowMac::MacWindowToRootWindow( int *x , int *y ) const
{
    if ( !IsTopLevel() )
    {
        if(x)   *x += m_x ;
        if(y)   *y += m_y ;
        GetParent()->MacWindowToRootWindow( x , y ) ;
    }
}

void wxWindowMac::MacRootWindowToWindow( int *x , int *y ) const
{
    if ( !IsTopLevel() )
    {
        if(x)   *x -= m_x ;
        if(y)   *y -= m_y ;
        GetParent()->MacRootWindowToWindow( x , y ) ;
    }
}

bool wxWindowMac::SetCursor(const wxCursor& cursor)
{
    if (m_cursor == cursor)
        return false;

    if (wxNullCursor == cursor)
    {
        if ( ! wxWindowBase::SetCursor( *wxSTANDARD_CURSOR ) )
            return false ;
    }
    else
    {
        if ( ! wxWindowBase::SetCursor( cursor ) )
            return false ;
    }

    wxASSERT_MSG( m_cursor.Ok(),
        wxT("cursor must be valid after call to the base version"));

    Point pt ;
    wxWindowMac *mouseWin ;
    GetMouse( &pt ) ;

    // Change the cursor NOW if we're within the correct window

    if ( MacGetWindowFromPoint( wxPoint( pt.h , pt.v ) , &mouseWin ) )
    {
        if ( mouseWin == this && !wxIsBusy() )
        {
            m_cursor.MacInstall() ;
        }
    }

    return true ;
}


// Get size *available for subwindows* i.e. excluding menu bar etc.
void wxWindowMac::DoGetClientSize(int *x, int *y) const
{
    int ww, hh;
    ww = m_width ;
    hh = m_height ;