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wxWidgets/src/msw/mdi.cpp
Vadim Zeitlin 2ffa221c58 some more consts here and there 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5003 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1999-12-16 22:10:32 +00:00

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/////////////////////////////////////////////////////////////////////////////
// Name: mdi.cpp
// Purpose: MDI classes
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart and Markus Holzem
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
// ===========================================================================
// declarations
// ===========================================================================
// ---------------------------------------------------------------------------
// headers
// ---------------------------------------------------------------------------
#ifdef __GNUG__
#pragma implementation "mdi.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/setup.h"
#include "wx/frame.h"
#include "wx/menu.h"
#include "wx/app.h"
#include "wx/utils.h"
#include "wx/dialog.h"
#if wxUSE_STATUSBAR
#include "wx/statusbr.h"
#endif
#include "wx/settings.h"
#include "wx/intl.h"
#include "wx/log.h"
#endif
#include "wx/mdi.h"
#include "wx/msw/private.h"
#if wxUSE_STATUSBAR && wxUSE_NATIVE_STATUSBAR
#include "wx/msw/statbr95.h"
#endif
#if wxUSE_TOOLBAR
#include "wx/toolbar.h"
#endif // wxUSE_TOOLBAR
#include <string.h>
// ---------------------------------------------------------------------------
// global variables
// ---------------------------------------------------------------------------
extern wxWindowList wxModelessWindows; // from dialog.cpp
extern wxMenu *wxCurrentPopupMenu;
extern const wxChar *wxMDIFrameClassName;
extern const wxChar *wxMDIChildFrameClassName;
extern wxWindow *wxWndHook; // from window.cpp
extern void wxAssociateWinWithHandle(HWND hWnd, wxWindow *win);
static HWND invalidHandle = 0;
// ---------------------------------------------------------------------------
// constants
// ---------------------------------------------------------------------------
static const int IDM_WINDOWTILE = 4001;
static const int IDM_WINDOWTILEHOR = 4001;
static const int IDM_WINDOWCASCADE = 4002;
static const int IDM_WINDOWICONS = 4003;
static const int IDM_WINDOWNEXT = 4004;
static const int IDM_WINDOWTILEVERT = 4005;
// This range gives a maximum of 500 MDI children. Should be enough :-)
static const int wxFIRST_MDI_CHILD = 4100;
static const int wxLAST_MDI_CHILD = 4600;
// Status border dimensions
static const int wxTHICK_LINE_BORDER = 3;
static const int wxTHICK_LINE_WIDTH = 1;
// ---------------------------------------------------------------------------
// private functions
// ---------------------------------------------------------------------------
// set the MDI menus (by sending the WM_MDISETMENU message) and update the menu
// of the parent of win (which is supposed to be the MDI client window)
static void MDISetMenu(wxWindow *win, HMENU hmenuFrame, HMENU hmenuWindow);
// insert the window menu (subMenu) into menu just before "Help" submenu or at
// the very end if not found
static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu);
// is this an id of an MDI child?
inline bool IsMdiCommandId(int id)
{
return (id >= wxFIRST_MDI_CHILD) && (id <= wxLAST_MDI_CHILD);
}
static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam,
WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact);
// ===========================================================================
// implementation
// ===========================================================================
// ---------------------------------------------------------------------------
// wxWin macros
// ---------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame, wxFrame)
IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame, wxFrame)
IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow, wxWindow)
BEGIN_EVENT_TABLE(wxMDIParentFrame, wxFrame)
EVT_SIZE(wxMDIParentFrame::OnSize)
EVT_SYS_COLOUR_CHANGED(wxMDIParentFrame::OnSysColourChanged)
END_EVENT_TABLE()
BEGIN_EVENT_TABLE(wxMDIClientWindow, wxWindow)
EVT_SCROLL(wxMDIClientWindow::OnScroll)
END_EVENT_TABLE()
// ===========================================================================
// wxMDIParentFrame: the frame which contains the client window which manages
// the children
// ===========================================================================
wxMDIParentFrame::wxMDIParentFrame()
{
m_clientWindow = NULL;
m_currentChild = NULL;
m_windowMenu = 0;
m_parentFrameActive = TRUE;
}
bool wxMDIParentFrame::Create(wxWindow *parent,
wxWindowID id,
const wxString& title,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name)
{
m_defaultIcon = (WXHICON) (wxSTD_MDIPARENTFRAME_ICON ? wxSTD_MDIPARENTFRAME_ICON : wxDEFAULT_MDIPARENTFRAME_ICON);
m_clientWindow = NULL;
m_currentChild = NULL;
m_windowMenu = 0;
m_parentFrameActive = TRUE;
if (!parent)
wxTopLevelWindows.Append(this);
SetName(name);
m_windowStyle = style;
if (parent) parent->AddChild(this);
if ( id > -1 )
m_windowId = id;
else
m_windowId = (int)NewControlId();
int x = pos.x;
int y = pos.y;
int width = size.x;
int height = size.y;
m_windowMenu = (WXHMENU) ::LoadMenu(wxGetInstance(), wxT("wxWindowMenu"));
DWORD msflags = WS_OVERLAPPED;
if (style & wxMINIMIZE_BOX)
msflags |= WS_MINIMIZEBOX;
if (style & wxMAXIMIZE_BOX)
msflags |= WS_MAXIMIZEBOX;
if (style & wxTHICK_FRAME)
msflags |= WS_THICKFRAME;
if (style & wxSYSTEM_MENU)
msflags |= WS_SYSMENU;
if ((style & wxMINIMIZE) || (style & wxICONIZE))
msflags |= WS_MINIMIZE;
if (style & wxMAXIMIZE)
msflags |= WS_MAXIMIZE;
if (style & wxCAPTION)
msflags |= WS_CAPTION;
if (style & wxCLIP_CHILDREN)
msflags |= WS_CLIPCHILDREN;
wxWindow::MSWCreate(m_windowId, parent, wxMDIFrameClassName, this, title, x, y, width, height,
msflags);
wxModelessWindows.Append(this);
return TRUE;
}
wxMDIParentFrame::~wxMDIParentFrame()
{
DestroyChildren();
// already delete by DestroyChildren()
m_frameToolBar = NULL;
::DestroyMenu((HMENU)m_windowMenu);
m_windowMenu = 0;
if ( m_clientWindow )
{
if ( m_clientWindow->MSWGetOldWndProc() )
m_clientWindow->UnsubclassWin();
m_clientWindow->SetHWND(0);
delete m_clientWindow;
}
}
void wxMDIParentFrame::InternalSetMenuBar()
{
HMENU subMenu = GetSubMenu((HMENU) m_windowMenu, 0);
m_parentFrameActive = TRUE;
InsertWindowMenu(GetClientWindow(), m_hMenu, subMenu);
}
void wxMDIParentFrame::OnSize(wxSizeEvent& event)
{
if ( GetClientWindow() )
{
int width, height;
GetClientSize(&width, &height);
GetClientWindow()->SetSize(0, 0, width, height);
}
}
// Returns the active MDI child window
wxMDIChildFrame *wxMDIParentFrame::GetActiveChild() const
{
HWND hWnd = (HWND)::SendMessage(GetWinHwnd(GetClientWindow()),
WM_MDIGETACTIVE, 0, 0L);
if ( hWnd == 0 )
return NULL;
else
return (wxMDIChildFrame *)wxFindWinFromHandle((WXHWND) hWnd);
}
// Create the client window class (don't Create the window, just return a new
// class)
wxMDIClientWindow *wxMDIParentFrame::OnCreateClient()
{
return new wxMDIClientWindow;
}
// Responds to colour changes, and passes event on to children.
void wxMDIParentFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
{
if ( m_clientWindow )
{
m_clientWindow->SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
m_clientWindow->Refresh();
}
event.Skip();
}
// ---------------------------------------------------------------------------
// MDI operations
// ---------------------------------------------------------------------------
void wxMDIParentFrame::Cascade()
{
::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDICASCADE, 0, 0);
}
// TODO: add a direction argument (hor/vert)
void wxMDIParentFrame::Tile()
{
::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDITILE, MDITILE_HORIZONTAL, 0);
}
void wxMDIParentFrame::ArrangeIcons()
{
::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDIICONARRANGE, 0, 0);
}
void wxMDIParentFrame::ActivateNext()
{
::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDINEXT, 0, 0);
}
void wxMDIParentFrame::ActivatePrevious()
{
::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDINEXT, 0, 1);
}
// ---------------------------------------------------------------------------
// the MDI parent frame window proc
// ---------------------------------------------------------------------------
long wxMDIParentFrame::MSWWindowProc(WXUINT message,
WXWPARAM wParam,
WXLPARAM lParam)
{
long rc = 0;
bool processed = FALSE;
switch ( message )
{
case WM_ACTIVATE:
{
WXWORD state, minimized;
WXHWND hwnd;
UnpackActivate(wParam, lParam, &state, &minimized, &hwnd);
processed = HandleActivate(state, minimized != 0, hwnd);
}
break;
case WM_COMMAND:
{
WXWORD id, cmd;
WXHWND hwnd;
UnpackCommand(wParam, lParam, &id, &hwnd, &cmd);
(void)HandleCommand(id, cmd, hwnd);
// even if the frame didn't process it, there is no need to try it
// once again (i.e. call wxFrame::HandleCommand()) - we just dud it,
// so pretend we processed the message anyhow
processed = TRUE;
}
// always pass this message DefFrameProc(), otherwise MDI menu
// commands (and sys commands - more surprizingly!) won't work
MSWDefWindowProc(message, wParam, lParam);
break;
case WM_CREATE:
m_clientWindow = OnCreateClient();
// Uses own style for client style
if ( !m_clientWindow->CreateClient(this, GetWindowStyleFlag()) )
{
wxLogMessage(_("Failed to create MDI parent frame."));
rc = -1;
}
processed = TRUE;
break;
case WM_ERASEBKGND:
processed = TRUE;
// we erase background ourselves
rc = TRUE;
break;
case WM_MENUSELECT:
{
WXWORD item, flags;
WXHMENU hmenu;
UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu);
if ( m_parentFrameActive )
{
processed = HandleMenuSelect(item, flags, hmenu);
}
else if (m_currentChild)
{
processed = m_currentChild->
HandleMenuSelect(item, flags, hmenu);
}
}
break;
case WM_SIZE:
// as we don't (usually) resize the MDI client to exactly fit the
// client area (we put it below the toolbar, above statusbar &c),
// we should not pass this one to DefFrameProc
break;
}
if ( !processed )
rc = wxFrame::MSWWindowProc(message, wParam, lParam);
return rc;
}
bool wxMDIParentFrame::HandleActivate(int state, bool minimized, WXHWND activate)
{
bool processed = FALSE;
if ( wxWindow::HandleActivate(state, minimized, activate) )
{
// already processed
processed = TRUE;
}
// If this window is an MDI parent, we must also send an OnActivate message
// to the current child.
if ( (m_currentChild != NULL) &&
((state == WA_ACTIVE) || (state == WA_CLICKACTIVE)) )
{
wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_currentChild->GetId());
event.SetEventObject( m_currentChild );
if ( m_currentChild->GetEventHandler()->ProcessEvent(event) )
processed = TRUE;
}
return processed;
}
bool wxMDIParentFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd)
{
// In case it's e.g. a toolbar.
if ( hwnd )
{
wxWindow *win = wxFindWinFromHandle(hwnd);
if ( win )
return win->MSWCommand(cmd, id);
}
// is it one of standard MDI commands?
WXWPARAM wParam = 0;
int msg;
switch ( id )
{
case IDM_WINDOWCASCADE:
msg = WM_MDICASCADE;
wParam = MDITILE_SKIPDISABLED;
break;
case IDM_WINDOWTILEHOR:
wParam |= MDITILE_HORIZONTAL;
// fall through
case IDM_WINDOWTILEVERT:
if ( !wParam )
wParam = MDITILE_VERTICAL;
msg = WM_MDITILE;
wParam |= MDITILE_SKIPDISABLED;
break;
case IDM_WINDOWICONS:
msg = WM_MDIICONARRANGE;
break;
case IDM_WINDOWNEXT:
msg = WM_MDINEXT;
break;
default:
msg = 0;
}
if ( msg )
{
::SendMessage(GetWinHwnd(GetClientWindow()), msg, wParam, 0);
return TRUE;
}
// FIXME VZ: what does this test do??
if (id >= 0xF000)
{
return FALSE; // Get WndProc to call default proc
}
if ( IsMdiCommandId(id) )
{
wxWindowList::Node* node = GetChildren().GetFirst();
while ( node )
{
wxWindow* child = node->GetData();
if ( child->GetHWND() )
{
long childId = wxGetWindowId(child->GetHWND());
if (childId == (long)id)
{
::SendMessage( GetWinHwnd(GetClientWindow()),
WM_MDIACTIVATE,
(WPARAM)child->GetHWND(), 0);
return TRUE;
}
}
node = node->GetNext();
}
}
else if ( m_parentFrameActive )
{
return ProcessCommand(id);
}
else if ( m_currentChild )
{
return m_currentChild->HandleCommand(id, cmd, hwnd);
}
else
{
// this shouldn't happen because it means that our messages are being
// lost (they're not sent to the parent frame nor to the children)
wxFAIL_MSG(wxT("MDI parent frame is not active, "
"yet there is no active MDI child?"));
}
return FALSE;
}
long wxMDIParentFrame::MSWDefWindowProc(WXUINT message,
WXWPARAM wParam,
WXLPARAM lParam)
{
WXHWND clientWnd;
if ( GetClientWindow() )
clientWnd = GetClientWindow()->GetHWND();
else
clientWnd = 0;
return DefFrameProc(GetHwnd(), (HWND)clientWnd, message, wParam, lParam);
}
bool wxMDIParentFrame::MSWTranslateMessage(WXMSG* msg)
{
MSG *pMsg = (MSG *)msg;
if ( m_currentChild && m_currentChild->GetHWND() &&
m_currentChild->MSWTranslateMessage(msg) )
{
return TRUE;
}
if ( m_acceleratorTable.Translate(this, msg) )
{
return TRUE;
}
if ( pMsg->message == WM_KEYDOWN || pMsg->message == WM_SYSKEYDOWN )
{
if ( ::TranslateMDISysAccel(GetWinHwnd(GetClientWindow()), pMsg))
return TRUE;
}
return FALSE;
}
// ===========================================================================
// wxMDIChildFrame
// ===========================================================================
wxMDIChildFrame::wxMDIChildFrame()
{
}
bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
wxWindowID id,
const wxString& title,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name)
{
m_defaultIcon = (WXHICON)(wxSTD_MDICHILDFRAME_ICON ? wxSTD_MDICHILDFRAME_ICON
: wxDEFAULT_MDICHILDFRAME_ICON);
SetName(name);
if ( id > -1 )
m_windowId = id;
else
m_windowId = (int)NewControlId();
if ( parent )
{
parent->AddChild(this);
}
wxWndHook = this;
int x = pos.x;
int y = pos.y;
int width = size.x;
int height = size.y;
MDICREATESTRUCT mcs;
mcs.szClass = wxMDIChildFrameClassName;
mcs.szTitle = title;
mcs.hOwner = wxGetInstance();
if (x > -1)
mcs.x = x;
else
mcs.x = CW_USEDEFAULT;
if (y > -1)
mcs.y = y;
else
mcs.y = CW_USEDEFAULT;
if (width > -1)
mcs.cx = width;
else
mcs.cx = CW_USEDEFAULT;
if (height > -1)
mcs.cy = height;
else
mcs.cy = CW_USEDEFAULT;
DWORD msflags = WS_OVERLAPPED | WS_CLIPCHILDREN;
if (style & wxMINIMIZE_BOX)
msflags |= WS_MINIMIZEBOX;
if (style & wxMAXIMIZE_BOX)
msflags |= WS_MAXIMIZEBOX;
if (style & wxTHICK_FRAME)
msflags |= WS_THICKFRAME;
if (style & wxSYSTEM_MENU)
msflags |= WS_SYSMENU;
if ((style & wxMINIMIZE) || (style & wxICONIZE))
msflags |= WS_MINIMIZE;
if (style & wxMAXIMIZE)
msflags |= WS_MAXIMIZE;
if (style & wxCAPTION)
msflags |= WS_CAPTION;
mcs.style = msflags;
mcs.lParam = 0;
DWORD Return = SendMessage(GetWinHwnd(parent->GetClientWindow()),
WM_MDICREATE, 0, (LONG)(LPSTR)&mcs);
//handle = (HWND)LOWORD(Return);
// Must be the DWORRD for WIN32. And in 16 bits, HIWORD=0 (says Microsoft)
m_hWnd = (WXHWND)Return;
wxWndHook = NULL;
wxAssociateWinWithHandle((HWND) GetHWND(), this);
// VZ: what's this? an act of piracy?
//SetWindowLong(GetHwnd(), 0, (long)this);
wxModelessWindows.Append(this);
return TRUE;
}
wxMDIChildFrame::~wxMDIChildFrame()
{
MSWDestroyWindow();
}
// Set the client size (i.e. leave the calculation of borders etc.
// to wxWindows)
void wxMDIChildFrame::DoSetClientSize(int width, int height)
{
HWND hWnd = GetHwnd();
RECT rect;
::GetClientRect(hWnd, &rect);
RECT rect2;
GetWindowRect(hWnd, &rect2);
// Find the difference between the entire window (title bar and all)
// and the client area; add this to the new client size to move the
// window
int actual_width = rect2.right - rect2.left - rect.right + width;
int actual_height = rect2.bottom - rect2.top - rect.bottom + height;
if (GetStatusBar())
{
int sx, sy;
GetStatusBar()->GetSize(&sx, &sy);
actual_height += sy;
}
POINT point;
point.x = rect2.left;
point.y = rect2.top;
// If there's an MDI parent, must subtract the parent's top left corner
// since MoveWindow moves relative to the parent
wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent();
::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point);
MoveWindow(hWnd, point.x, point.y, actual_width, actual_height, (BOOL)TRUE);
wxSizeEvent event(wxSize(width, height), m_windowId);
event.SetEventObject( this );
GetEventHandler()->ProcessEvent(event);
}
void wxMDIChildFrame::DoGetPosition(int *x, int *y) const
{
RECT rect;
GetWindowRect(GetHwnd(), &rect);
POINT point;
point.x = rect.left;
point.y = rect.top;
// Since we now have the absolute screen coords,
// if there's a parent we must subtract its top left corner
wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent();
::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point);
*x = point.x;
*y = point.y;
}
void wxMDIChildFrame::InternalSetMenuBar()
{
wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
HMENU subMenu = GetSubMenu((HMENU)parent->GetWindowMenu(), 0);
InsertWindowMenu(parent->GetClientWindow(), m_hMenu, subMenu);
parent->m_parentFrameActive = FALSE;
}
// ---------------------------------------------------------------------------
// MDI operations
// ---------------------------------------------------------------------------
void wxMDIChildFrame::Maximize(bool maximize)
{
wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
if ( parent && parent->GetClientWindow() )
{
::SendMessage(GetWinHwnd(parent->GetClientWindow()),
maximize ? WM_MDIMAXIMIZE : WM_MDIRESTORE,
(WPARAM)GetHwnd(), 0);
}
}
void wxMDIChildFrame::Restore()
{
wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
if ( parent && parent->GetClientWindow() )
{
::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIRESTORE,
(WPARAM) GetHwnd(), 0);
}
}
void wxMDIChildFrame::Activate()
{
wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
if ( parent && parent->GetClientWindow() )
{
::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIACTIVATE,
(WPARAM) GetHwnd(), 0);
}
}
// ---------------------------------------------------------------------------
// MDI window proc and message handlers
// ---------------------------------------------------------------------------
long wxMDIChildFrame::MSWWindowProc(WXUINT message,
WXWPARAM wParam,
WXLPARAM lParam)
{
long rc = 0;
bool processed = FALSE;
switch ( message )
{
case WM_COMMAND:
{
WORD id, cmd;
WXHWND hwnd;
UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
&id, &hwnd, &cmd);
processed = HandleCommand(id, cmd, (WXHWND)hwnd);
}
break;
case WM_GETMINMAXINFO:
// let the default window proc calculate the size of MDI children
// frames because it is based on the size of the MDI client window,
// not on the values specified in wxWindow m_min/max variables
return MSWDefWindowProc(message, wParam, lParam);
case WM_MDIACTIVATE:
{
WXWORD act;
WXHWND hwndAct, hwndDeact;
UnpackMDIActivate(wParam, lParam, &act, &hwndAct, &hwndDeact);
processed = HandleMDIActivate(act, hwndAct, hwndDeact);
}
// fall through
case WM_MOVE:
// must pass WM_MOVE to DefMDIChildProc() to recalculate MDI client
// scrollbars if necessary
// fall through
case WM_SIZE:
// must pass WM_SIZE to DefMDIChildProc(), otherwise many weird
// things happen
MSWDefWindowProc(message, wParam, lParam);
break;
case WM_SYSCOMMAND:
// DefMDIChildProc handles SC_{NEXT/PREV}WINDOW here, so pass it
// the message (the base class version does not)
return MSWDefWindowProc(message, wParam, lParam);
case WM_WINDOWPOSCHANGING:
processed = HandleWindowPosChanging((LPWINDOWPOS)lParam);
break;
}
if ( !processed )
rc = wxFrame::MSWWindowProc(message, wParam, lParam);
return rc;
}
bool wxMDIChildFrame::HandleSize(int x, int y, WXUINT id)
{
HWND hwnd = GetHwnd();
if ( !hwnd || hwnd == invalidHandle )
{
return FALSE;
}
switch (id)
{
case SIZEFULLSCREEN:
case SIZENORMAL:
m_iconized = FALSE;
break;
case SIZEICONIC:
m_iconized = TRUE;
break;
}
if ( !m_iconized )
{
// forward WM_SIZE to status bar control
#if wxUSE_NATIVE_STATUSBAR
if (m_frameStatusBar && m_frameStatusBar->IsKindOf(CLASSINFO(wxStatusBar95)))
{
wxSizeEvent event(wxSize(x, y), m_frameStatusBar->GetId());
event.SetEventObject( m_frameStatusBar );
((wxStatusBar95 *)m_frameStatusBar)->OnSize(event);
}
#endif // wxUSE_NATIVE_STATUSBAR
PositionStatusBar();
PositionToolBar();
return wxWindow::HandleSize(x, y, id);
}
else
{
return FALSE;
}
}
bool wxMDIChildFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd)
{
// In case it's e.g. a toolbar.
if ( hwnd )
{
wxWindow *win = wxFindWinFromHandle(hwnd);
if (win)
return win->MSWCommand(cmd, id);
}
if (wxCurrentPopupMenu)
{
wxMenu *popupMenu = wxCurrentPopupMenu;
wxCurrentPopupMenu = NULL;
if (popupMenu->MSWCommand(cmd, id))
return TRUE;
}
if (GetMenuBar() && GetMenuBar()->FindItem(id))
{
ProcessCommand(id);
return TRUE;
}
else
return FALSE;
return TRUE;
}
bool wxMDIChildFrame::HandleMDIActivate(long WXUNUSED(activate),
WXHWND hwndAct,
WXHWND hwndDeact)
{
wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
HMENU menuToSet = 0;
bool activated;
if ( m_hWnd == hwndAct )
{
activated = TRUE;
parent->m_currentChild = this;
HMENU child_menu = (HMENU)GetWinMenu();
if ( child_menu )
{
parent->m_parentFrameActive = FALSE;
menuToSet = child_menu;
}
}
else if ( m_hWnd == hwndDeact )
{
wxASSERT_MSG( parent->m_currentChild == this,
wxT("can't deactivate MDI child which wasn't active!") );
activated = FALSE;
parent->m_currentChild = NULL;
HMENU parent_menu = (HMENU)parent->GetWinMenu();
if ( parent_menu )
{
parent->m_parentFrameActive = TRUE;
menuToSet = parent_menu;
}
}
else
{
// we have nothing to with it
return FALSE;
}
if ( menuToSet )
{
HMENU subMenu = GetSubMenu((HMENU) parent->GetWindowMenu(), 0);
MDISetMenu(parent->GetClientWindow(), menuToSet, subMenu);
}
wxActivateEvent event(wxEVT_ACTIVATE, activated, m_windowId);
event.SetEventObject( this );
return GetEventHandler()->ProcessEvent(event);
}
bool wxMDIChildFrame::HandleWindowPosChanging(void *pos)
{
WINDOWPOS *lpPos = (WINDOWPOS *)pos;
#if defined(__WIN95__)
if (!(lpPos->flags & SWP_NOSIZE))
{
RECT rectClient;
DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
DWORD dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE);
if (ResetWindowStyle((void *) & rectClient) && (dwStyle & WS_MAXIMIZE))
{
::AdjustWindowRectEx(&rectClient, dwStyle, FALSE, dwExStyle);
lpPos->x = rectClient.left;
lpPos->y = rectClient.top;
lpPos->cx = rectClient.right - rectClient.left;
lpPos->cy = rectClient.bottom - rectClient.top;
}
wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent();
if (pFrameWnd && pFrameWnd->GetToolBar())
{
pFrameWnd->GetToolBar()->Refresh();
}
}
#endif // Win95
return FALSE;
}
// ---------------------------------------------------------------------------
// MDI specific message translation/preprocessing
// ---------------------------------------------------------------------------
long wxMDIChildFrame::MSWDefWindowProc(WXUINT message, WXUINT wParam, WXLPARAM lParam)
{
return DefMDIChildProc(GetHwnd(),
(UINT)message, (WPARAM)wParam, (LPARAM)lParam);
}
bool wxMDIChildFrame::MSWTranslateMessage(WXMSG* msg)
{
return m_acceleratorTable.Translate(GetParent(), msg);
}
// ---------------------------------------------------------------------------
// misc
// ---------------------------------------------------------------------------
void wxMDIChildFrame::MSWDestroyWindow()
{
MSWDetachWindowMenu();
invalidHandle = GetHwnd();
wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
// Must make sure this handle is invalidated (set to NULL) since all sorts
// of things could happen after the child client is destroyed, but before
// the wxFrame is destroyed.
HWND oldHandle = (HWND)GetHWND();
SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIDESTROY,
(WPARAM)oldHandle, 0);
invalidHandle = 0;
if (m_hMenu)
{
::DestroyMenu((HMENU) m_hMenu);
m_hMenu = 0;
}
m_hWnd = 0;
}
// Change the client window's extended style so we don't get a client edge
// style when a child is maximised (a double border looks silly.)
bool wxMDIChildFrame::ResetWindowStyle(void *vrect)
{
#if defined(__WIN95__)
RECT *rect = (RECT *)vrect;
wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent();
wxMDIChildFrame* pChild = pFrameWnd->GetActiveChild();
if (!pChild || (pChild == this))
{
DWORD dwStyle = ::GetWindowLong(GetWinHwnd(pFrameWnd->GetClientWindow()), GWL_EXSTYLE);
DWORD dwThisStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE);
DWORD dwNewStyle = dwStyle;
if (pChild != NULL && (dwThisStyle & WS_MAXIMIZE))
dwNewStyle &= ~(WS_EX_CLIENTEDGE);
else
dwNewStyle |= WS_EX_CLIENTEDGE;
if (dwStyle != dwNewStyle)
{
HWND hwnd = GetWinHwnd(pFrameWnd->GetClientWindow());
::RedrawWindow(hwnd, NULL, NULL, RDW_INVALIDATE | RDW_ALLCHILDREN);
::SetWindowLong(hwnd, GWL_EXSTYLE, dwNewStyle);
::SetWindowPos(hwnd, NULL, 0, 0, 0, 0,
SWP_FRAMECHANGED | SWP_NOACTIVATE |
SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
SWP_NOCOPYBITS);
if (rect)
::GetClientRect(hwnd, rect);
return TRUE;
}
}
#endif // Win95
return FALSE;
}
// ===========================================================================
// wxMDIClientWindow: the window of predefined (by Windows) class which
// contains the child frames
// ===========================================================================
bool wxMDIClientWindow::CreateClient(wxMDIParentFrame *parent, long style)
{
m_backgroundColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE);
CLIENTCREATESTRUCT ccs;
m_windowStyle = style;
m_parent = parent;
ccs.hWindowMenu = (HMENU)parent->GetWindowMenu();
ccs.idFirstChild = wxFIRST_MDI_CHILD;
DWORD msStyle = WS_VISIBLE | WS_CHILD | WS_CLIPCHILDREN;
if ( style & wxHSCROLL )
msStyle |= WS_HSCROLL;
if ( style & wxVSCROLL )
msStyle |= WS_VSCROLL;
#if defined(__WIN95__)
DWORD exStyle = WS_EX_CLIENTEDGE;
#else
DWORD exStyle = 0;
#endif
wxWndHook = this;
m_hWnd = (WXHWND)::CreateWindowEx
(
exStyle,
wxT("MDICLIENT"),
NULL,
msStyle,
0, 0, 0, 0,
GetWinHwnd(parent),
NULL,
wxGetInstance(),
(LPSTR)(LPCLIENTCREATESTRUCT)&ccs);
if ( !m_hWnd )
{
wxLogLastError("CreateWindowEx(MDI client)");
return FALSE;
}
SubclassWin(m_hWnd);
wxWndHook = NULL;
return TRUE;
}
// Explicitly call default scroll behaviour
void wxMDIClientWindow::OnScroll(wxScrollEvent& event)
{
// Note: for client windows, the scroll position is not set in
// WM_HSCROLL, WM_VSCROLL, so we can't easily determine what
// scroll position we're at.
// This makes it hard to paint patterns or bitmaps in the background,
// and have the client area scrollable as well.
if ( event.GetOrientation() == wxHORIZONTAL )
m_scrollX = event.GetPosition(); // Always returns zero!
else
m_scrollY = event.GetPosition(); // Always returns zero!
event.Skip();
}
// ---------------------------------------------------------------------------
// non member functions
// ---------------------------------------------------------------------------
static void MDISetMenu(wxWindow *win, HMENU hmenuFrame, HMENU hmenuWindow)
{
::SendMessage(GetWinHwnd(win), WM_MDISETMENU,
#ifdef __WIN32__
(WPARAM)hmenuFrame, (LPARAM)hmenuWindow);
#else
0, MAKELPARAM(hmenuFrame, hmenuWindow));
#endif
// update menu bar of the parent window
wxWindow *parent = win->GetParent();
wxCHECK_RET( parent, wxT("MDI client without parent frame? weird...") );
::DrawMenuBar(GetWinHwnd(parent));
}
static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu)
{
// Try to insert Window menu in front of Help, otherwise append it.
HMENU hmenu = (HMENU)menu;
int N = GetMenuItemCount(hmenu);
bool success = FALSE;
for ( int i = 0; i < N; i++ )
{
wxChar buf[256];
int chars = GetMenuString(hmenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION);
if ( chars == 0 )
{
wxLogLastError(wxT("GetMenuString"));
continue;
}
if ( wxStripMenuCodes(wxString(buf)).IsSameAs(wxT("Help")) )
{
success = TRUE;
::InsertMenu(hmenu, i, MF_BYPOSITION | MF_POPUP | MF_STRING,
(UINT)subMenu, wxT("&Window"));
break;
}
}
if ( !success )
{
::AppendMenu(hmenu, MF_POPUP, (UINT)subMenu, wxT("&Window"));
}
MDISetMenu(win, hmenu, subMenu);
}
static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam,
WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact)
{
#ifdef __WIN32__
*activate = TRUE;
*hwndAct = (WXHWND)lParam;
*hwndDeact = (WXHWND)wParam;
#else // Win16
*activate = (WXWORD)wParam;
*hwndAct = (WXHWND)LOWORD(lParam);
*hwndDeact = (WXHWND)HIWORD(lParam);
#endif // Win32/Win16
}
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