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a3a13581dd97d6923fb035a223560974b2bc270e
wxWidgets/src/msw/frame.cpp
Vadim Zeitlin a3a13581dd 1. wxRadioBox event generation fixed 
2. significantly expanded and enchanced listbox sample
3. wxTextCtrl::IsModified() implemented
4. wxRadioBox button layout fixed once again
5. wxTextCtrl::SetValue() refresh bug fixed
6. wxListCtrl doesn't keep invalid selection after Delete()


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/wxUNIVERSAL@8493 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2000-10-08 23:12:36 +00:00

1101 lines
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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/setup.h"
#include "wx/frame.h"
#include "wx/menu.h"
#include "wx/app.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
// ----------------------------------------------------------------------------
extern wxWindowList wxModelessWindows;
extern wxList WXDLLEXPORT wxPendingDelete;
extern const wxChar *wxFrameClassName;
#if wxUSE_MENUS
extern wxMenu *wxCurrentPopupMenu;
#endif // wxUSE_MENUS
// ----------------------------------------------------------------------------
// event tables
// ----------------------------------------------------------------------------
BEGIN_EVENT_TABLE(wxFrame, wxFrameBase)
EVT_ACTIVATE(wxFrame::OnActivate)
EVT_SYS_COLOUR_CHANGED(wxFrame::OnSysColourChanged)
END_EVENT_TABLE()
IMPLEMENT_DYNAMIC_CLASS(wxFrame, wxWindow)
// ============================================================================
// 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()
{
m_iconized = FALSE;
#if wxUSE_TOOLTIPS
m_hwndToolTip = 0;
#endif
// Data to save/restore when calling ShowFullScreen
m_fsStyle = 0;
m_fsOldWindowStyle = 0;
m_fsStatusBarFields = 0;
m_fsStatusBarHeight = 0;
m_fsToolBarHeight = 0;
// m_fsMenu = 0;
m_fsIsMaximized = FALSE;
m_fsIsShowing = FALSE;
m_winLastFocused = (wxWindow *)NULL;
// unlike (almost?) all other windows, frames are created hidden
m_isShown = FALSE;
}
bool wxFrame::Create(wxWindow *parent,
wxWindowID id,
const wxString& title,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name)
{
SetName(name);
m_windowStyle = style;
#if wxUSE_MENUS
m_frameMenuBar = NULL;
#endif // wxUSE_MENUS
#if wxUSE_TOOLBAR
m_frameToolBar = NULL;
#endif // wxUSE_TOOLBAR
#if wxUSE_STATUSBAR
m_frameStatusBar = NULL;
#endif // wxUSE_STATUSBAR
#ifdef __WXUNIVERSAL__
SetBackgroundColour(wxTHEME_COLOUR(CONTROL));
#else // !__WXUNIVERSAL__
SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE));
#endif // __WXUNIVERSAL__/!__WXUNIVERSAL__
if ( id > -1 )
m_windowId = id;
else
m_windowId = (int)NewControlId();
if (parent) parent->AddChild(this);
int x = pos.x;
int y = pos.y;
int width = size.x;
int height = size.y;
m_iconized = FALSE;
// we pass NULL as parent to MSWCreate because frames with parents behave
// very strangely under Win95 shell
// Alteration by JACS: keep normal Windows behaviour (float on top of parent)
// with this style.
if ((m_windowStyle & wxFRAME_FLOAT_ON_PARENT) == 0)
parent = NULL;
wxTopLevelWindows.Append(this);
MSWCreate(m_windowId, parent, wxFrameClassName, this, title,
x, y, width, height, style);
wxModelessWindows.Append(this);
return TRUE;
}
wxFrame::~wxFrame()
{
m_isBeingDeleted = TRUE;
wxTopLevelWindows.DeleteObject(this);
// the ~wxToolBar() code relies on the previous line to be executed before
// this one, i.e. the frame should remove itself from wxTopLevelWindows
// before destorying its toolbar
DeleteAllBars();
if (wxTheApp && (wxTopLevelWindows.Number() == 0))
{
wxTheApp->SetTopWindow(NULL);
if (wxTheApp->GetExitOnFrameDelete())
{
PostQuitMessage(0);
}
}
wxModelessWindows.DeleteObject(this);
// For some reason, wxWindows can activate another task altogether
// when a frame is destroyed after a modal dialog has been invoked.
// Try to bring the parent to the top.
// MT:Only do this if this frame is currently the active window, else weird
// things start to happen
if ( wxGetActiveWindow() == this )
if (GetParent() && GetParent()->GetHWND())
::BringWindowToTop((HWND) GetParent()->GetHWND());
}
// Get size *available for subwindows* i.e. excluding menu bar, toolbar etc.
void wxFrame::DoGetClientSize(int *x, int *y) const
{
RECT rect;
::GetClientRect(GetHwnd(), &rect);
#if wxUSE_STATUSBAR
if ( GetStatusBar() && GetStatusBar()->IsShown() )
{
int statusX, statusY;
GetStatusBar()->GetClientSize(&statusX, &statusY);
rect.bottom -= statusY;
}
#endif // wxUSE_STATUSBAR
wxPoint pt(GetClientAreaOrigin());
rect.bottom -= pt.y;
rect.right -= pt.x;
if ( x )
*x = rect.right;
if ( y )
*y = rect.bottom;
}
// Set the client size (i.e. leave the calculation of borders etc.
// to wxWindows)
void wxFrame::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 wxUSE_STATUSBAR
if ( GetStatusBar() && GetStatusBar()->IsShown())
{
int statusX, statusY;
GetStatusBar()->GetClientSize(&statusX, &statusY);
actual_height += statusY;
}
#endif // wxUSE_STATUSBAR
wxPoint pt(GetClientAreaOrigin());
actual_width += pt.y;
actual_height += pt.x;
POINT point;
point.x = rect2.left;
point.y = rect2.top;
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 wxFrame::DoGetSize(int *width, int *height) const
{
RECT rect;
GetWindowRect(GetHwnd(), &rect);
*width = rect.right - rect.left;
*height = rect.bottom - rect.top;
}
void wxFrame::DoGetPosition(int *x, int *y) const
{
RECT rect;
GetWindowRect(GetHwnd(), &rect);
POINT point;
point.x = rect.left;
point.y = rect.top;
*x = point.x;
*y = point.y;
}
// ----------------------------------------------------------------------------
// variations around ::ShowWindow()
// ----------------------------------------------------------------------------
void wxFrame::DoShowWindow(int nShowCmd)
{
::ShowWindow(GetHwnd(), nShowCmd);
m_iconized = nShowCmd == SW_MINIMIZE;
}
bool wxFrame::Show(bool show)
{
// don't use wxWindow version as we want to call DoShowWindow()
if ( !wxWindowBase::Show(show) )
return FALSE;
DoShowWindow(show ? SW_SHOW : SW_HIDE);
if ( show )
{
::BringWindowToTop(GetHwnd());
wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_windowId);
event.SetEventObject( this );
GetEventHandler()->ProcessEvent(event);
}
else
{
// Try to highlight the correct window (the parent)
if ( GetParent() )
{
HWND hWndParent = GetHwndOf(GetParent());
if (hWndParent)
::BringWindowToTop(hWndParent);
}
}
return TRUE;
}
void wxFrame::Iconize(bool iconize)
{
DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
}
void wxFrame::Maximize(bool maximize)
{
DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
}
void wxFrame::Restore()
{
DoShowWindow(SW_RESTORE);
}
bool wxFrame::IsIconized() const
{
((wxFrame *)this)->m_iconized = (::IsIconic(GetHwnd()) != 0);
return m_iconized;
}
// Is it maximized?
bool wxFrame::IsMaximized() const
{
return (::IsZoomed(GetHwnd()) != 0);
}
void wxFrame::SetIcon(const wxIcon& icon)
{
wxFrameBase::SetIcon(icon);
#if defined(__WIN95__)
if ( m_icon.Ok() )
{
SendMessage(GetHwnd(), WM_SETICON,
(WPARAM)TRUE, (LPARAM)(HICON) m_icon.GetHICON());
}
#endif // __WIN95__
}
#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);
}
// Set the height according to the font and the border size
wxClientDC dc(statusBar);
dc.SetFont(statusBar->GetFont());
wxCoord y;
dc.GetTextExtent(_T("X"), NULL, &y );
int height = (int)( (11*y)/10 + 2*statusBar->GetBorderY());
statusBar->SetSize(-1, -1, -1, height);
statusBar->SetFieldsCount(number);
return statusBar;
}
void wxFrame::PositionStatusBar()
{
if ( !m_frameStatusBar )
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
void wxFrame::DetachMenuBar()
{
#if wxUSE_MENUS
if ( m_frameMenuBar )
{
m_frameMenuBar->Detach();
m_frameMenuBar = NULL;
}
#endif // wxUSE_MENUS
}
void wxFrame::SetMenuBar(wxMenuBar *menubar)
{
#if wxUSE_MENUS
if ( !menubar )
{
DetachMenuBar();
// actually remove the menu from the frame
m_hMenu = (WXHMENU)0;
InternalSetMenuBar();
}
else // set new non NULL menu bar
{
m_frameMenuBar = NULL;
// Can set a menubar several times.
// TODO: how to prevent a memory leak if you have a currently-unattached
// menubar? wxWindows assumes that the frame will delete the menu (otherwise
// there are problems for MDI).
if ( menubar->GetHMenu() )
{
m_hMenu = menubar->GetHMenu();
}
else
{
menubar->Detach();
m_hMenu = menubar->Create();
if ( !m_hMenu )
return;
}
InternalSetMenuBar();
m_frameMenuBar = menubar;
menubar->Attach(this);
}
#endif // wxUSE_MENUS
}
void wxFrame::InternalSetMenuBar()
{
if ( !::SetMenu(GetHwnd(), (HMENU)m_hMenu) )
{
wxLogLastError(wxT("SetMenu"));
}
}
// Responds to colour changes, and passes event on to children.
void wxFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
{
SetBackgroundColour(wxSystemSettings::GetSystemColour(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 (show)
{
if (IsFullScreen())
return FALSE;
m_fsIsShowing = TRUE;
m_fsStyle = style;
#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
if (style & wxFULLSCREEN_NOMENUBAR)
SetMenu((HWND)GetHWND(), (HMENU) NULL);
#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;
}
else
m_fsStatusBarFields = 0;
#endif // wxUSE_STATUSBAR
// zap the frame borders
// save the 'normal' window style
m_fsOldWindowStyle = GetWindowLong((HWND)GetHWND(), GWL_STYLE);
// save the old position, width & height, maximize state
m_fsOldSize = GetRect();
m_fsIsMaximized = IsMaximized();
// decide which window style flags to turn off
LONG newStyle = m_fsOldWindowStyle;
LONG offFlags = 0;
if (style & wxFULLSCREEN_NOBORDER)
offFlags |= WS_BORDER;
if (style & wxFULLSCREEN_NOCAPTION)
offFlags |= (WS_CAPTION | WS_SYSMENU);
newStyle &= (~offFlags);
// change our window style to be compatible with full-screen mode
SetWindowLong((HWND)GetHWND(), GWL_STYLE, newStyle);
// resize to the size of the desktop
int width, height;
RECT rect;
::GetWindowRect(GetDesktopWindow(), &rect);
width = rect.right - rect.left;
height = rect.bottom - rect.top;
SetSize(width, height);
// now flush the window style cache and actually go full-screen
SetWindowPos((HWND)GetHWND(), HWND_TOP, 0, 0, width, height, SWP_FRAMECHANGED);
wxSizeEvent event(wxSize(width, height), GetId());
GetEventHandler()->ProcessEvent(event);
return TRUE;
}
else
{
if (!IsFullScreen())
return FALSE;
m_fsIsShowing = FALSE;
#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) && (m_fsStatusBarFields > 0))
{
CreateStatusBar(m_fsStatusBarFields);
PositionStatusBar();
}
#endif // wxUSE_STATUSBAR
if ((m_fsStyle & wxFULLSCREEN_NOMENUBAR) && (m_hMenu != 0))
SetMenu((HWND)GetHWND(), (HMENU)m_hMenu);
Maximize(m_fsIsMaximized);
SetWindowLong((HWND)GetHWND(),GWL_STYLE, m_fsOldWindowStyle);
SetWindowPos((HWND)GetHWND(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
return TRUE;
}
}
/*
* Frame window
*
*/
bool wxFrame::MSWCreate(int id, wxWindow *parent, const wxChar *wclass, wxWindow *wx_win, const wxChar *title,
int x, int y, int width, int height, long style)
{
m_defaultIcon = (WXHICON) (wxSTD_FRAME_ICON ? wxSTD_FRAME_ICON : wxDEFAULT_FRAME_ICON);
// If child windows aren't properly drawn initially, WS_CLIPCHILDREN
// could be the culprit. But without it, you can get a lot of flicker.
DWORD msflags = 0;
if ( style & wxCAPTION )
{
if ( style & wxFRAME_TOOL_WINDOW )
msflags |= WS_POPUPWINDOW;
else
msflags |= WS_OVERLAPPED;
}
else
{
msflags |= WS_POPUP;
}
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 )
msflags |= WS_MINIMIZE;
if (style & wxMAXIMIZE)
msflags |= WS_MAXIMIZE;
if (style & wxCAPTION)
msflags |= WS_CAPTION;
if (style & wxCLIP_CHILDREN)
msflags |= WS_CLIPCHILDREN;
// Keep this in wxFrame because it saves recoding this function
// in wxTinyFrame
#if wxUSE_ITSY_BITSY && !defined(__WIN32__)
if (style & wxTINY_CAPTION_VERT)
msflags |= IBS_VERTCAPTION;
if (style & wxTINY_CAPTION_HORIZ)
msflags |= IBS_HORZCAPTION;
#else
if (style & wxTINY_CAPTION_VERT)
msflags |= WS_CAPTION;
if (style & wxTINY_CAPTION_HORIZ)
msflags |= WS_CAPTION;
#endif
if ((style & wxTHICK_FRAME) == 0)
msflags |= WS_BORDER;
WXDWORD extendedStyle = MakeExtendedStyle(style);
#if !defined(__WIN16__) && !defined(__SC__)
if (style & wxFRAME_TOOL_WINDOW)
extendedStyle |= WS_EX_TOOLWINDOW;
#endif
if (style & wxSTAY_ON_TOP)
extendedStyle |= WS_EX_TOPMOST;
m_iconized = FALSE;
if ( !wxWindow::MSWCreate(id, parent, wclass, wx_win, title, x, y, width, height,
msflags, NULL, extendedStyle) )
return FALSE;
// Seems to be necessary if we use WS_POPUP
// style instead of WS_OVERLAPPED
if (width > -1 && height > -1)
::PostMessage(GetHwnd(), WM_SIZE, SIZE_RESTORED, MAKELPARAM(width, height));
return TRUE;
}
// 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);
wxSetFocusToChild(this, &m_winLastFocused);
}
else
{
// remember the last focused child
m_winLastFocused = FindFocus();
while ( m_winLastFocused )
{
if ( GetChildren().Find(m_winLastFocused) )
break;
m_winLastFocused = m_winLastFocused->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()
{
RECT rect;
::GetClientRect(GetHwnd(), &rect);
#if wxUSE_STATUSBAR
if ( GetStatusBar() )
{
int statusX, statusY;
GetStatusBar()->GetClientSize(&statusX, &statusY);
rect.bottom -= statusY;
}
#endif // wxUSE_STATUSBAR
if ( GetToolBar() && GetToolBar()->IsShown() )
{
int tw, th;
GetToolBar()->GetSize(&tw, &th);
if ( GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL )
{
th = rect.bottom;
}
else
{
tw = rect.right;
}
// Use the 'real' MSW position here
GetToolBar()->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
)
{
frame->Iconize(bIconize);
}
}
}
// ===========================================================================
// message processing
// ===========================================================================
// ---------------------------------------------------------------------------
// preprocessing
// ---------------------------------------------------------------------------
bool wxFrame::MSWTranslateMessage(WXMSG* pMsg)
{
if ( wxWindow::MSWTranslateMessage(pMsg) )
return TRUE;
#if wxUSE_MENUS
// 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
}
// ---------------------------------------------------------------------------
// our private (non virtual) message handlers
// ---------------------------------------------------------------------------
bool wxFrame::HandlePaint()
{
RECT rect;
if ( GetUpdateRect(GetHwnd(), &rect, FALSE) )
{
if ( m_iconized )
{
HICON hIcon = m_icon.Ok() ? GetHiconOf(m_icon)
: (HICON)m_defaultIcon;
// 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
{
return wxWindow::HandlePaint();
}
}
else
{
// nothing to paint - processed
return TRUE;
}
}
bool wxFrame::HandleSize(int x, int y, WXUINT id)
{
bool processed = FALSE;
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);
// fall through
case SIZEFULLSCREEN:
m_iconized = FALSE;
break;
case SIZEICONIC:
// iconize all child frames too
IconizeChildFrames(TRUE);
m_iconized = TRUE;
break;
}
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
if ( wxCurrentPopupMenu )
{
wxMenu *popupMenu = wxCurrentPopupMenu;
wxCurrentPopupMenu = NULL;
return popupMenu->MSWCommand(cmd, id);
}
#endif // wxUSE_MENUS
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;
}
else if ( !(flags & MF_POPUP) && !(flags & MF_SEPARATOR) )
{
item = nItem;
}
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);
}
// ---------------------------------------------------------------------------
// 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_COMMAND:
{
WORD id, cmd;
WXHWND hwnd;
UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
&id, &hwnd, &cmd);
processed = HandleCommand(id, cmd, (WXHWND)hwnd);
}
break;
case WM_MENUSELECT:
{
WXWORD item, flags;
WXHMENU hmenu;
UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu);
processed = HandleMenuSelect(item, flags, hmenu);
}
break;
case WM_PAINT:
processed = HandlePaint();
break;
case WM_QUERYDRAGICON:
{
HICON hIcon = m_icon.Ok() ? GetHiconOf(m_icon)
: (HICON)(m_defaultIcon);
rc = (long)hIcon;
processed = rc != 0;
}
break;
case WM_SIZE:
processed = HandleSize(LOWORD(lParam), HIWORD(lParam), wParam);
break;
}
if ( !processed )
rc = wxWindow::MSWWindowProc(message, wParam, lParam);
return rc;
}
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