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03baf031866c399a835fef3a00834e32857e0dde
wxWidgets/src/msw/frame.cpp
Vadim Zeitlin 03baf03186 restored full redraw on repain behaviour by default, also some cleanup in the 
windows classes registration code


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14883 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2002-04-01 13:36:55 +00:00

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/////////////////////////////////////////////////////////////////////////////
// Name: msw/frame.cpp
// Purpose: wxFrame
// Author: Julian Smart
// Modified by:
// Created: 01/02/97
// RCS-ID: $Id$
// Copyright: (c) Julian Smart and Markus Holzem
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#ifdef __GNUG__
#pragma implementation "frame.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/frame.h"
#include "wx/app.h"
#include "wx/menu.h"
#include "wx/utils.h"
#include "wx/dialog.h"
#include "wx/settings.h"
#include "wx/dcclient.h"
#include "wx/mdi.h"
#include "wx/panel.h"
#endif // WX_PRECOMP
#include "wx/msw/private.h"
#if wxUSE_STATUSBAR
#include "wx/statusbr.h"
#include "wx/generic/statusbr.h"
#endif // wxUSE_STATUSBAR
#if wxUSE_TOOLBAR
#include "wx/toolbar.h"
#endif // wxUSE_TOOLBAR
#include "wx/menuitem.h"
#include "wx/log.h"
#ifdef __WXUNIVERSAL__
#include "wx/univ/theme.h"
#include "wx/univ/colschem.h"
#endif // __WXUNIVERSAL__
// ----------------------------------------------------------------------------
// globals
// ----------------------------------------------------------------------------
#if wxUSE_MENUS_NATIVE
extern wxMenu *wxCurrentPopupMenu;
#endif // wxUSE_MENUS_NATIVE
// ----------------------------------------------------------------------------
// event tables
// ----------------------------------------------------------------------------
BEGIN_EVENT_TABLE(wxFrame, wxFrameBase)
EVT_ACTIVATE(wxFrame::OnActivate)
EVT_SYS_COLOUR_CHANGED(wxFrame::OnSysColourChanged)
END_EVENT_TABLE()
IMPLEMENT_DYNAMIC_CLASS(wxFrame, wxTopLevelWindow)
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// static class members
// ----------------------------------------------------------------------------
#if wxUSE_STATUSBAR
#if wxUSE_NATIVE_STATUSBAR
bool wxFrame::m_useNativeStatusBar = TRUE;
#else
bool wxFrame::m_useNativeStatusBar = FALSE;
#endif
#endif // wxUSE_NATIVE_STATUSBAR
// ----------------------------------------------------------------------------
// creation/destruction
// ----------------------------------------------------------------------------
void wxFrame::Init()
{
#if wxUSE_TOOLTIPS
m_hwndToolTip = 0;
#endif
// Data to save/restore when calling ShowFullScreen
m_fsStatusBarFields = 0;
m_fsStatusBarHeight = 0;
m_fsToolBarHeight = 0;
// m_fsMenu = 0;
m_wasMinimized = FALSE;
m_winLastFocused = (wxWindow *)NULL;
}
bool wxFrame::Create(wxWindow *parent,
wxWindowID id,
const wxString& title,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name)
{
if ( !wxTopLevelWindow::Create(parent, id, title, pos, size, style, name) )
return FALSE;
SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
wxModelessWindows.Append(this);
return TRUE;
}
wxFrame::~wxFrame()
{
m_isBeingDeleted = TRUE;
DeleteAllBars();
}
// ----------------------------------------------------------------------------
// wxFrame client size calculations
// ----------------------------------------------------------------------------
void wxFrame::DoSetClientSize(int width, int height)
{
// leave enough space for the status bar if we have (and show) it
#if wxUSE_STATUSBAR
wxStatusBar *statbar = GetStatusBar();
if ( statbar && statbar->IsShown() )
{
height += statbar->GetSize().y;
}
#endif // wxUSE_STATUSBAR
// call GetClientAreaOrigin() to take the toolbar into account
wxPoint pt = GetClientAreaOrigin();
width += pt.x;
height += pt.y;
wxTopLevelWindow::DoSetClientSize(width, height);
}
// Get size *available for subwindows* i.e. excluding menu bar, toolbar etc.
void wxFrame::DoGetClientSize(int *x, int *y) const
{
wxTopLevelWindow::DoGetClientSize(x, y);
// account for the possible toolbar
wxPoint pt = GetClientAreaOrigin();
if ( x )
*x -= pt.x;
if ( y )
*y -= pt.y;
#if wxUSE_STATUSBAR
// adjust client area height to take the status bar into account
if ( y )
{
wxStatusBar *statbar = GetStatusBar();
if ( statbar && statbar->IsShown() )
{
*y -= statbar->GetClientSize().y;
}
}
#endif // wxUSE_STATUSBAR
}
// ----------------------------------------------------------------------------
// wxFrame: various geometry-related functions
// ----------------------------------------------------------------------------
void wxFrame::Raise()
{
#ifdef __WIN16__
// no SetForegroundWindow() in Win16
wxFrameBase::Raise();
#else // Win32
::SetForegroundWindow(GetHwnd());
#endif // Win16/32
}
// generate an artificial resize event
void wxFrame::SendSizeEvent()
{
if ( !m_iconized )
{
RECT r = wxGetWindowRect(GetHwnd());
(void)::PostMessage(GetHwnd(), WM_SIZE,
IsMaximized() ? SIZE_MAXIMIZED : SIZE_RESTORED,
MAKELPARAM(r.right - r.left, r.bottom - r.top));
}
}
#if wxUSE_STATUSBAR
wxStatusBar *wxFrame::OnCreateStatusBar(int number,
long style,
wxWindowID id,
const wxString& name)
{
wxStatusBar *statusBar = NULL;
#if wxUSE_NATIVE_STATUSBAR
if ( !UsesNativeStatusBar() )
{
statusBar = (wxStatusBar *)new wxStatusBarGeneric(this, id, style);
}
else
#endif
{
statusBar = new wxStatusBar(this, id, style, name);
}
statusBar->SetFieldsCount(number);
return statusBar;
}
void wxFrame::PositionStatusBar()
{
if ( !m_frameStatusBar || !m_frameStatusBar->IsShown() )
return;
int w, h;
GetClientSize(&w, &h);
int sw, sh;
m_frameStatusBar->GetSize(&sw, &sh);
// Since we wish the status bar to be directly under the client area,
// we use the adjusted sizes without using wxSIZE_NO_ADJUSTMENTS.
m_frameStatusBar->SetSize(0, h, w, sh);
}
#endif // wxUSE_STATUSBAR
#if wxUSE_MENUS_NATIVE
void wxFrame::AttachMenuBar(wxMenuBar *menubar)
{
wxFrameBase::AttachMenuBar(menubar);
if ( !menubar )
{
// actually remove the menu from the frame
m_hMenu = (WXHMENU)0;
InternalSetMenuBar();
}
else // set new non NULL menu bar
{
// Can set a menubar several times.
if ( menubar->GetHMenu() )
{
m_hMenu = menubar->GetHMenu();
}
else // no HMENU yet
{
m_hMenu = menubar->Create();
if ( !m_hMenu )
{
wxFAIL_MSG( _T("failed to create menu bar") );
return;
}
}
InternalSetMenuBar();
}
}
void wxFrame::InternalSetMenuBar()
{
#ifndef __WXMICROWIN__
if ( !::SetMenu(GetHwnd(), (HMENU)m_hMenu) )
{
wxLogLastError(wxT("SetMenu"));
}
#endif
}
#endif // wxUSE_MENUS_NATIVE
// Responds to colour changes, and passes event on to children.
void wxFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
{
SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
Refresh();
#if wxUSE_STATUSBAR
if ( m_frameStatusBar )
{
wxSysColourChangedEvent event2;
event2.SetEventObject( m_frameStatusBar );
m_frameStatusBar->GetEventHandler()->ProcessEvent(event2);
}
#endif // wxUSE_STATUSBAR
// Propagate the event to the non-top-level children
wxWindow::OnSysColourChanged(event);
}
// Pass TRUE to show full screen, FALSE to restore.
bool wxFrame::ShowFullScreen(bool show, long style)
{
if ( IsFullScreen() == show )
return FALSE;
if (show)
{
#if wxUSE_TOOLBAR
wxToolBar *theToolBar = GetToolBar();
if (theToolBar)
theToolBar->GetSize(NULL, &m_fsToolBarHeight);
// zap the toolbar, menubar, and statusbar
if ((style & wxFULLSCREEN_NOTOOLBAR) && theToolBar)
{
theToolBar->SetSize(-1,0);
theToolBar->Show(FALSE);
}
#endif // wxUSE_TOOLBAR
#ifndef __WXMICROWIN__
if (style & wxFULLSCREEN_NOMENUBAR)
SetMenu((HWND)GetHWND(), (HMENU) NULL);
#endif
#if wxUSE_STATUSBAR
wxStatusBar *theStatusBar = GetStatusBar();
if (theStatusBar)
theStatusBar->GetSize(NULL, &m_fsStatusBarHeight);
// Save the number of fields in the statusbar
if ((style & wxFULLSCREEN_NOSTATUSBAR) && theStatusBar)
{
//m_fsStatusBarFields = theStatusBar->GetFieldsCount();
//SetStatusBar((wxStatusBar*) NULL);
//delete theStatusBar;
theStatusBar->Show(FALSE);
}
else
m_fsStatusBarFields = 0;
#endif // wxUSE_STATUSBAR
}
else
{
#if wxUSE_TOOLBAR
wxToolBar *theToolBar = GetToolBar();
// restore the toolbar, menubar, and statusbar
if (theToolBar && (m_fsStyle & wxFULLSCREEN_NOTOOLBAR))
{
theToolBar->SetSize(-1, m_fsToolBarHeight);
theToolBar->Show(TRUE);
}
#endif // wxUSE_TOOLBAR
#if wxUSE_STATUSBAR
if ( m_fsStyle & wxFULLSCREEN_NOSTATUSBAR )
{
//CreateStatusBar(m_fsStatusBarFields);
if (GetStatusBar())
{
GetStatusBar()->Show(TRUE);
PositionStatusBar();
}
}
#endif // wxUSE_STATUSBAR
#ifndef __WXMICROWIN__
if ((m_fsStyle & wxFULLSCREEN_NOMENUBAR) && (m_hMenu != 0))
SetMenu((HWND)GetHWND(), (HMENU)m_hMenu);
#endif
}
return wxFrameBase::ShowFullScreen(show, style);
}
// Default activation behaviour - set the focus for the first child
// subwindow found.
void wxFrame::OnActivate(wxActivateEvent& event)
{
if ( event.GetActive() )
{
// restore focus to the child which was last focused
wxLogTrace(_T("focus"), _T("wxFrame %08x activated."), m_hWnd);
wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
: NULL;
if ( !parent )
{
parent = this;
}
wxSetFocusToChild(parent, &m_winLastFocused);
}
else // deactivating
{
// remember the last focused child if it is our child
m_winLastFocused = FindFocus();
// so we NULL it out if it's a child from some other frame
wxWindow *win = m_winLastFocused;
while ( win )
{
if ( win->IsTopLevel() )
{
if ( win != this )
{
m_winLastFocused = NULL;
}
break;
}
win = win->GetParent();
}
wxLogTrace(_T("focus"),
_T("wxFrame %08x deactivated, last focused: %08x."),
m_hWnd,
m_winLastFocused ? GetHwndOf(m_winLastFocused)
: NULL);
event.Skip();
}
}
// ----------------------------------------------------------------------------
// tool/status bar stuff
// ----------------------------------------------------------------------------
#if wxUSE_TOOLBAR
wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
{
if ( wxFrameBase::CreateToolBar(style, id, name) )
{
PositionToolBar();
}
return m_frameToolBar;
}
void wxFrame::PositionToolBar()
{
wxToolBar *toolbar = GetToolBar();
if ( toolbar && toolbar->IsShown() )
{
// don't call our (or even wxTopLevelWindow) version because we want
// the real (full) client area size, not excluding the tool/status bar
int width, height;
wxWindow::DoGetClientSize(&width, &height);
#if wxUSE_STATUSBAR
wxStatusBar *statbar = GetStatusBar();
if ( statbar && statbar->IsShown() )
{
height -= statbar->GetClientSize().y;
}
#endif // wxUSE_STATUSBAR
int tw, th;
toolbar->GetSize(&tw, &th);
if ( toolbar->GetWindowStyleFlag() & wxTB_VERTICAL )
{
th = height;
}
else
{
tw = width;
if ( toolbar->GetWindowStyleFlag() & wxTB_FLAT )
th -= 3;
}
// use the 'real' MSW position here, don't offset relativly to the
// client area origin
toolbar->SetSize(0, 0, tw, th, wxSIZE_NO_ADJUSTMENTS);
}
}
#endif // wxUSE_TOOLBAR
// ----------------------------------------------------------------------------
// frame state (iconized/maximized/...)
// ----------------------------------------------------------------------------
// propagate our state change to all child frames: this allows us to emulate X
// Windows behaviour where child frames float independently of the parent one
// on the desktop, but are iconized/restored with it
void wxFrame::IconizeChildFrames(bool bIconize)
{
for ( wxWindowList::Node *node = GetChildren().GetFirst();
node;
node = node->GetNext() )
{
wxWindow *win = node->GetData();
// iconizing the frames with this style under Win95 shell puts them at
// the bottom of the screen (as the MDI children) instead of making
// them appear in the taskbar because they are, by virtue of this
// style, not managed by the taskbar - instead leave Windows take care
// of them
#ifdef __WIN95__
if ( win->GetWindowStyle() & wxFRAME_TOOL_WINDOW )
continue;
#endif // Win95
// the child MDI frames are a special case and should not be touched by
// the parent frame - instead, they are managed by the user
wxFrame *frame = wxDynamicCast(win, wxFrame);
if ( frame
#if wxUSE_MDI_ARCHITECTURE
&& !wxDynamicCast(frame, wxMDIChildFrame)
#endif // wxUSE_MDI_ARCHITECTURE
)
{
// we don't want to restore the child frames which had been
// iconized even before we were iconized, so save the child frame
// status when iconizing the parent frame and check it when
// restoring it
if ( bIconize )
{
// note that we shouldn't touch the hidden frames neither
// because iconizing/restoring them would show them as a side
// effect
frame->m_wasMinimized = frame->IsIconized() || !frame->IsShown();
}
// this test works for both iconizing and restoring
if ( !frame->m_wasMinimized )
frame->Iconize(bIconize);
}
}
}
WXHICON wxFrame::GetDefaultIcon() const
{
return (WXHICON)(wxSTD_FRAME_ICON ? wxSTD_FRAME_ICON
: wxDEFAULT_FRAME_ICON);
}
// ===========================================================================
// message processing
// ===========================================================================
// ---------------------------------------------------------------------------
// preprocessing
// ---------------------------------------------------------------------------
bool wxFrame::MSWTranslateMessage(WXMSG* pMsg)
{
if ( wxWindow::MSWTranslateMessage(pMsg) )
return TRUE;
#if wxUSE_MENUS && wxUSE_ACCEL && !defined(__WXUNIVERSAL__)
// try the menu bar accels
wxMenuBar *menuBar = GetMenuBar();
if ( !menuBar )
return FALSE;
const wxAcceleratorTable& acceleratorTable = menuBar->GetAccelTable();
return acceleratorTable.Translate(this, pMsg);
#else
return FALSE;
#endif // wxUSE_MENUS && wxUSE_ACCEL
}
// ---------------------------------------------------------------------------
// our private (non virtual) message handlers
// ---------------------------------------------------------------------------
bool wxFrame::HandlePaint()
{
RECT rect;
if ( GetUpdateRect(GetHwnd(), &rect, FALSE) )
{
#ifndef __WXMICROWIN__
if ( m_iconized )
{
const wxIcon& icon = GetIcon();
HICON hIcon = icon.Ok() ? GetHiconOf(icon)
: (HICON)GetDefaultIcon();
// Hold a pointer to the dc so long as the OnPaint() message
// is being processed
PAINTSTRUCT ps;
HDC hdc = ::BeginPaint(GetHwnd(), &ps);
// Erase background before painting or we get white background
MSWDefWindowProc(WM_ICONERASEBKGND, (WORD)(LONG)ps.hdc, 0L);
if ( hIcon )
{
RECT rect;
::GetClientRect(GetHwnd(), &rect);
// FIXME: why hardcoded?
static const int icon_width = 32;
static const int icon_height = 32;
int icon_x = (int)((rect.right - icon_width)/2);
int icon_y = (int)((rect.bottom - icon_height)/2);
::DrawIcon(hdc, icon_x, icon_y, hIcon);
}
::EndPaint(GetHwnd(), &ps);
return TRUE;
}
else
#endif
{
return wxWindow::HandlePaint();
}
}
else
{
// nothing to paint - processed
return TRUE;
}
}
bool wxFrame::HandleSize(int x, int y, WXUINT id)
{
bool processed = FALSE;
#ifndef __WXMICROWIN__
switch ( id )
{
case SIZENORMAL:
// only do it it if we were iconized before, otherwise resizing the
// parent frame has a curious side effect of bringing it under it's
// children
if ( !m_iconized )
break;
// restore all child frames too
IconizeChildFrames(FALSE);
(void)SendIconizeEvent(FALSE);
// fall through
case SIZEFULLSCREEN:
m_iconized = FALSE;
break;
case SIZEICONIC:
// iconize all child frames too
IconizeChildFrames(TRUE);
(void)SendIconizeEvent();
m_iconized = TRUE;
break;
}
#endif
if ( !m_iconized )
{
#if wxUSE_STATUSBAR
PositionStatusBar();
#endif // wxUSE_STATUSBAR
#if wxUSE_TOOLBAR
PositionToolBar();
#endif // wxUSE_TOOLBAR
wxSizeEvent event(wxSize(x, y), m_windowId);
event.SetEventObject( this );
processed = GetEventHandler()->ProcessEvent(event);
}
return processed;
}
bool wxFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND control)
{
if ( control )
{
// In case it's e.g. a toolbar.
wxWindow *win = wxFindWinFromHandle(control);
if ( win )
return win->MSWCommand(cmd, id);
}
// handle here commands from menus and accelerators
if ( cmd == 0 || cmd == 1 )
{
#if wxUSE_MENUS_NATIVE
if ( wxCurrentPopupMenu )
{
wxMenu *popupMenu = wxCurrentPopupMenu;
wxCurrentPopupMenu = NULL;
return popupMenu->MSWCommand(cmd, id);
}
#endif // wxUSE_MENUS_NATIVE
if ( ProcessCommand(id) )
{
return TRUE;
}
}
return FALSE;
}
bool wxFrame::HandleMenuSelect(WXWORD nItem, WXWORD flags, WXHMENU hMenu)
{
int item;
if ( flags == 0xFFFF && hMenu == 0 )
{
// menu was removed from screen
item = -1;
}
#ifndef __WXMICROWIN__
else if ( !(flags & MF_POPUP) && !(flags & MF_SEPARATOR) )
{
item = nItem;
}
#endif
else
{
#if wxUSE_STATUSBAR
// don't give hints for separators (doesn't make sense) nor for the
// items opening popup menus (they don't have them anyhow) but do clear
// the status line - otherwise, we would be left with the help message
// for the previous item which doesn't apply any more
wxStatusBar *statbar = GetStatusBar();
if ( statbar )
{
statbar->SetStatusText(wxEmptyString);
}
#endif // wxUSE_STATUSBAR
return FALSE;
}
wxMenuEvent event(wxEVT_MENU_HIGHLIGHT, item);
event.SetEventObject(this);
return GetEventHandler()->ProcessEvent(event);
}
bool wxFrame::HandleMenuLoop(const wxEventType& evtType, WXWORD isPopup)
{
// we don't have the menu id here, so we use the id to specify if the event
// was from a popup menu or a normal one
wxMenuEvent event(evtType, isPopup ? -1 : 0);
event.SetEventObject(this);
return GetEventHandler()->ProcessEvent(event);
}
// ---------------------------------------------------------------------------
// the window proc for wxFrame
// ---------------------------------------------------------------------------
long wxFrame::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
{
long rc = 0;
bool processed = FALSE;
switch ( message )
{
case WM_CLOSE:
// if we can't close, tell the system that we processed the
// message - otherwise it would close us
processed = !Close();
break;
case WM_SIZE:
processed = HandleSize(LOWORD(lParam), HIWORD(lParam), wParam);
break;
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_PAINT:
processed = HandlePaint();
break;
#ifndef __WXMICROWIN__
case WM_MENUSELECT:
{
WXWORD item, flags;
WXHMENU hmenu;
UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu);
processed = HandleMenuSelect(item, flags, hmenu);
}
break;
#ifndef __WIN16__
case WM_ENTERMENULOOP:
processed = HandleMenuLoop(wxEVT_MENU_OPEN, wParam);
break;
case WM_EXITMENULOOP:
processed = HandleMenuLoop(wxEVT_MENU_CLOSE, wParam);
break;
#endif // __WIN16__
case WM_QUERYDRAGICON:
{
const wxIcon& icon = GetIcon();
HICON hIcon = icon.Ok() ? GetHiconOf(icon)
: (HICON)GetDefaultIcon();
rc = (long)hIcon;
processed = rc != 0;
}
break;
#endif // !__WXMICROWIN__
}
if ( !processed )
rc = wxWindow::MSWWindowProc(message, wParam, lParam);
return rc;
}
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