extending calculation of visible region

[wxWidgets.git] / src / msw / dialog.cpp

diff --git a/src/msw/dialog.cpp b/src/msw/dialog.cpp
index 5f70961052596e3b54d6167458f29fad46ba173c..f43c35fe3fdc9687baa93f8029a29a3890f2f65c 100644 (file)
--- a/src/msw/dialog.cpp
+++ b/src/msw/dialog.cpp
@@ -5,7 +5,7 @@
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$

-// Copyright:   (c) Julian Smart and Markus Holzem
+// Copyright:   (c) Julian Smart

 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 


@@ -17,7 +17,7 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

     #pragma implementation "dialog.h"
 #endif
 
     #pragma implementation "dialog.h"
 #endif
 


@@ -40,47 +40,110 @@
 
 #include "wx/msw/private.h"
 #include "wx/log.h"
 
 #include "wx/msw/private.h"
 #include "wx/log.h"

+#include "wx/evtloop.h"
+#include "wx/ptr_scpd.h"

 
 

-#if wxUSE_COMMON_DIALOGS
+#if wxUSE_COMMON_DIALOGS && !defined(__WXMICROWIN__)

     #include <commdlg.h>
 #endif
 
 // ----------------------------------------------------------------------------
     #include <commdlg.h>
 #endif
 
 // ----------------------------------------------------------------------------

-// constants
+// wxWin macros

 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 

-// default dialog pos and size
+#if wxUSE_EXTENDED_RTTI
+WX_DEFINE_FLAGS( wxDialogStyle )
+
+wxBEGIN_FLAGS( wxDialogStyle )
+    // new style border flags, we put them first to
+    // use them for streaming out
+    wxFLAGS_MEMBER(wxBORDER_SIMPLE)
+    wxFLAGS_MEMBER(wxBORDER_SUNKEN)
+    wxFLAGS_MEMBER(wxBORDER_DOUBLE)
+    wxFLAGS_MEMBER(wxBORDER_RAISED)
+    wxFLAGS_MEMBER(wxBORDER_STATIC)
+    wxFLAGS_MEMBER(wxBORDER_NONE)
+    
+    // old style border flags
+    wxFLAGS_MEMBER(wxSIMPLE_BORDER)
+    wxFLAGS_MEMBER(wxSUNKEN_BORDER)
+    wxFLAGS_MEMBER(wxDOUBLE_BORDER)
+    wxFLAGS_MEMBER(wxRAISED_BORDER)
+    wxFLAGS_MEMBER(wxSTATIC_BORDER)
+    wxFLAGS_MEMBER(wxNO_BORDER)
+
+    // standard window styles
+    wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
+    wxFLAGS_MEMBER(wxCLIP_CHILDREN)
+
+    // dialog styles
+    wxFLAGS_MEMBER(wxDIALOG_MODAL)
+    wxFLAGS_MEMBER(wxDIALOG_MODELESS)
+    wxFLAGS_MEMBER(wxNO_3D)
+    wxFLAGS_MEMBER(wxWS_EX_VALIDATE_RECURSIVELY)
+    wxFLAGS_MEMBER(wxSTAY_ON_TOP)
+    wxFLAGS_MEMBER(wxCAPTION)
+    wxFLAGS_MEMBER(wxTHICK_FRAME)
+    wxFLAGS_MEMBER(wxSYSTEM_MENU)
+    wxFLAGS_MEMBER(wxRESIZE_BORDER)
+    wxFLAGS_MEMBER(wxRESIZE_BOX)
+    wxFLAGS_MEMBER(wxCLOSE_BOX)
+    wxFLAGS_MEMBER(wxMAXIMIZE_BOX)
+    wxFLAGS_MEMBER(wxMINIMIZE_BOX)
+wxEND_FLAGS( wxDialogStyle )
+
+IMPLEMENT_DYNAMIC_CLASS_XTI(wxDialog, wxTopLevelWindow,"wx/dialog.h")
+
+wxBEGIN_PROPERTIES_TABLE(wxDialog)
+    wxPROPERTY( Title,wxString, SetTitle, GetTitle, wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+    wxPROPERTY_FLAGS( WindowStyle , wxDialogStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
+wxEND_PROPERTIES_TABLE()
+
+wxBEGIN_HANDLERS_TABLE(wxDialog)
+wxEND_HANDLERS_TABLE()
+
+wxCONSTRUCTOR_6( wxDialog , wxWindow* , Parent , wxWindowID , Id , wxString , Title , wxPoint , Position , wxSize , Size , long , WindowStyle) 

 
 

-#define wxDIALOG_DEFAULT_X 300
-#define wxDIALOG_DEFAULT_Y 300
+#else
+IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxTopLevelWindow)
+#endif

 
 

-#define wxDIALOG_DEFAULT_WIDTH 500
-#define wxDIALOG_DEFAULT_HEIGHT 500
+BEGIN_EVENT_TABLE(wxDialog, wxDialogBase)
+    EVT_BUTTON(wxID_OK, wxDialog::OnOK)
+    EVT_BUTTON(wxID_APPLY, wxDialog::OnApply)
+    EVT_BUTTON(wxID_CANCEL, wxDialog::OnCancel)

 
 

-// ----------------------------------------------------------------------------
-// globals
-// ----------------------------------------------------------------------------
+    EVT_SYS_COLOUR_CHANGED(wxDialog::OnSysColourChanged)

 
 

-// all modal dialogs currently shown
-static wxWindowList wxModalDialogs;
+    EVT_CLOSE(wxDialog::OnCloseWindow)
+END_EVENT_TABLE()

 
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------

-// wxWin macros
+// wxDialogModalData

 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 

-IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxTopLevelWindow)
+// this is simply a container for any data we need to implement modality which
+// allows us to avoid changing wxDialog each time the implementation changes
+class wxDialogModalData
+{
+public:
+    wxDialogModalData(wxDialog *dialog) : m_evtLoop(dialog) { }

 
 

-BEGIN_EVENT_TABLE(wxDialog, wxTopLevelWindow)
-    EVT_BUTTON(wxID_OK, wxDialog::OnOK)
-    EVT_BUTTON(wxID_APPLY, wxDialog::OnApply)
-    EVT_BUTTON(wxID_CANCEL, wxDialog::OnCancel)
+    void RunLoop()
+    {
+        m_evtLoop.Run();
+    }

 
 

-    EVT_CHAR_HOOK(wxDialog::OnCharHook)
+    void ExitLoop()
+    {
+        m_evtLoop.Exit();
+    }

 
 

-    EVT_SYS_COLOUR_CHANGED(wxDialog::OnSysColourChanged)
+private:
+    wxModalEventLoop m_evtLoop;
+};

 
 

-    EVT_CLOSE(wxDialog::OnCloseWindow)
-END_EVENT_TABLE()
+wxDEFINE_TIED_SCOPED_PTR_TYPE(wxDialogModalData);

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


@@ -93,12 +156,9 @@ END_EVENT_TABLE()
 void wxDialog::Init()
 {
     m_oldFocus = (wxWindow *)NULL;
 void wxDialog::Init()
 {
     m_oldFocus = (wxWindow *)NULL;

-

     m_isShown = FALSE;
     m_isShown = FALSE;

-
-    m_windowDisabler = (wxWindowDisabler *)NULL;
-
-    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
+    m_modalData = NULL;
+    m_endModalCalled = FALSE;

 }
 
 bool wxDialog::Create(wxWindow *parent,
 }
 
 bool wxDialog::Create(wxWindow *parent,


@@ -109,8 +169,6 @@ bool wxDialog::Create(wxWindow *parent,
                       long style,
                       const wxString& name)
 {
                       long style,
                       const wxString& name)
 {

-    Init();
-

     SetExtraStyle(GetExtraStyle() | wxTOPLEVEL_EX_DIALOG);
 
     // save focus before doing anything which can potentially change it
     SetExtraStyle(GetExtraStyle() | wxTOPLEVEL_EX_DIALOG);
 
     // save focus before doing anything which can potentially change it


@@ -122,37 +180,10 @@ bool wxDialog::Create(wxWindow *parent,
     if ( !wxTopLevelWindow::Create(parent, id, title, pos, size, style, name) )
         return FALSE;
 
     if ( !wxTopLevelWindow::Create(parent, id, title, pos, size, style, name) )
         return FALSE;
 

-    return TRUE;
-}
-
-bool wxDialog::EnableCloseButton(bool enable)
-{
-#ifndef __WXMICROWIN__
-    // get system (a.k.a. window) menu
-    HMENU hmenu = ::GetSystemMenu(GetHwnd(), FALSE /* get it */);
-    if ( !hmenu )
-    {
-        wxLogLastError(_T("GetSystemMenu"));
+    if ( !m_hasFont )
+        SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));

 
 

-        return FALSE;
-    }
-
-    // enabling/disabling the close item from it also automatically
-    // disables/enabling the close title bar button
-    if ( !::EnableMenuItem(hmenu, SC_CLOSE,
-                           MF_BYCOMMAND | (enable ? MF_ENABLED : MF_GRAYED)) )
-    {
-        wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
-
-        return FALSE;
-    }
-
-    // update appearance immediately
-    if ( !::DrawMenuBar(GetHwnd()) )
-    {
-        wxLogLastError(_T("DrawMenuBar"));
-    }
-#endif
+    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));

 
     return TRUE;
 }
 
     return TRUE;
 }


@@ -181,35 +212,6 @@ wxDialog::~wxDialog()
     Show(FALSE);
 }
 
     Show(FALSE);
 }
 

-// ----------------------------------------------------------------------------
-// kbd handling
-// ----------------------------------------------------------------------------
-
-// By default, pressing escape cancels the dialog
-void wxDialog::OnCharHook(wxKeyEvent& event)
-{
-    if (GetHWND())
-    {
-        // "Esc" works as an accelerator for the "Cancel" button, but it
-        // shouldn't close the dialog which doesn't have any cancel button
-        if ( (event.m_keyCode == WXK_ESCAPE) && FindWindow(wxID_CANCEL) )
-        {
-            wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
-            cancelEvent.SetEventObject( this );
-            GetEventHandler()->ProcessEvent(cancelEvent);
-
-            // ensure that there is another message for this window so the
-            // ShowModal loop will exit and won't get stuck in GetMessage().
-            ::PostMessage(GetHwnd(), WM_NULL, 0, 0);
-
-            return;
-        }
-    }
-
-    // We didn't process this event.
-    event.Skip();
-}
-

 // ----------------------------------------------------------------------------
 // showing the dialogs
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // showing the dialogs
 // ----------------------------------------------------------------------------


@@ -221,7 +223,29 @@ bool wxDialog::IsModal() const
 
 bool wxDialog::IsModalShowing() const
 {
 
 bool wxDialog::IsModalShowing() const
 {

-    return wxModalDialogs.Find((wxDialog *)this) != NULL; // const_cast
+    return m_modalData != NULL;
+}
+
+wxWindow *wxDialog::FindSuitableParent() const
+{
+    // first try to use the currently active window
+    HWND hwndFg = ::GetForegroundWindow();
+    wxWindow *parent = hwndFg ? wxFindWinFromHandle((WXHWND)hwndFg)
+                              : NULL;
+    if ( !parent )
+    {
+        // next try the main app window
+        parent = wxTheApp->GetTopWindow();
+    }
+
+    // finally, check if the parent we found is really suitable
+    if ( !parent || parent == (wxWindow *)this || !parent->IsShown() )
+    {
+        // don't use this one
+        parent = NULL;
+    }
+
+    return parent;

 }
 
 void wxDialog::DoShowModal()
 }
 
 void wxDialog::DoShowModal()


@@ -229,8 +253,6 @@ void wxDialog::DoShowModal()
     wxCHECK_RET( !IsModalShowing(), _T("DoShowModal() called twice") );
     wxCHECK_RET( IsModal(), _T("can't DoShowModal() modeless dialog") );
 
     wxCHECK_RET( !IsModalShowing(), _T("DoShowModal() called twice") );
     wxCHECK_RET( IsModal(), _T("can't DoShowModal() modeless dialog") );
 

-    wxModalDialogs.Append(this);
-

     wxWindow *parent = GetParent();
 
     wxWindow* oldFocus = m_oldFocus;
     wxWindow *parent = GetParent();
 
     wxWindow* oldFocus = m_oldFocus;


@@ -250,23 +272,11 @@ void wxDialog::DoShowModal()
             hwndOldFocus = GetHwndOf(parent);
     }
 
             hwndOldFocus = GetHwndOf(parent);
     }
 

-    // disable all other app windows
-    wxASSERT_MSG( !m_windowDisabler, _T("disabling windows twice?") );
-
-    m_windowDisabler = new wxWindowDisabler(this);
-

     // enter the modal loop
     // enter the modal loop

-    while ( IsModalShowing() )

     {
     {

-#if wxUSE_THREADS
-        wxMutexGuiLeaveOrEnter();
-#endif // wxUSE_THREADS
-
-        while ( !wxTheApp->Pending() && wxTheApp->ProcessIdle() )
-            ;
-
-        // a message came or no more idle processing to do
-        wxTheApp->DoMessage();
+        wxDialogModalDataTiedPtr modalData(&m_modalData,
+                                           new wxDialogModalData(this));
+        modalData->RunLoop();

     }
 
     // and restore focus
     }
 
     // and restore focus


@@ -283,16 +293,14 @@ void wxDialog::DoShowModal()
 
 bool wxDialog::Show(bool show)
 {
 
 bool wxDialog::Show(bool show)
 {

-    if ( !show )
+    if ( !show && m_modalData )

     {
     {

-        // if we had disabled other app windows, reenable them back now because
+        // we need to do this before calling wxDialogBase version because if we
+        // had disabled other app windows, they must be reenabled right now as

         // if they stay disabled Windows will activate another window (one
         // if they stay disabled Windows will activate another window (one

-        // which is enabled, anyhow) and we will lose activation
-        if ( m_windowDisabler )
-        {
-            delete m_windowDisabler;
-            m_windowDisabler = NULL;
-        }
+        // which is enabled, anyhow) when we're hidden in the base class Show()
+        // and we will lose activation
+        m_modalData->ExitLoop();

     }
 
     // ShowModal() may be called for already shown dialog
     }
 
     // ShowModal() may be called for already shown dialog


@@ -304,53 +312,44 @@ bool wxDialog::Show(bool show)
 
     if ( show )
     {
 
     if ( show )
     {

-        // usually will result in TransferDataToWindow() being called
+        // dialogs don't get WM_SIZE message after creation unlike most (all?)
+        // other windows and so could start their life non laid out correctly
+        // if we didn't call Layout() from here
+        //
+        // NB: normally we should call it just the first time but doing it
+        //     every time is simpler than keeping a flag
+        Layout();
+
+        // this usually will result in TransferDataToWindow() being called

         InitDialog();
     }
 
         InitDialog();
     }
 

-    if ( IsModal() )
+    // EndModal may have been called from InitDialog handler,
+    // which would cause an infinite loop if we didn't take it
+    // into account
+    if ( show && IsModal() && !m_endModalCalled )

     {
     {

-        if ( show )
+        // modal dialog needs a parent window, so try to find one
+        if ( !GetParent() )

         {
         {

-            // modal dialog needs a parent window, so try to find one
-            if ( !GetParent() )
-            {
-                wxWindow *parent = wxTheApp->GetTopWindow();
-                if ( parent && parent != this && parent->IsShown() )
-                {
-                    // use it
-                    m_parent = parent;
-
-                    // VZ: to make dialog behave properly we should reparent
-                    //     the dialog for Windows as well - unfortunately,
-                    //     following the docs for SetParent() results in this
-                    //     code which plainly doesn't work
-#if 0
-                    long dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE);
-                    dwStyle &= ~WS_POPUP;
-                    dwStyle |= WS_CHILD;
-                    ::SetWindowLong(GetHwnd(), GWL_STYLE, dwStyle);
-                    ::SetParent(GetHwnd(), GetHwndOf(parent));
-#endif // 0
-                }
-            }
-
-            DoShowModal();
-        }
-        else // end of modal dialog
-        {
-            // this will cause IsModalShowing() return FALSE and our local
-            // message loop will terminate
-            wxModalDialogs.DeleteObject(this);
+            m_parent = FindSuitableParent();

         }
         }

+
+        DoShowModal();

     }
 
     return TRUE;
 }
 
     }
 
     return TRUE;
 }
 

+void wxDialog::Raise()
+{
+    ::SetForegroundWindow(GetHwnd());
+}
+

 // a special version for Show(TRUE) for modal dialogs which returns return code
 int wxDialog::ShowModal()
 {
 // a special version for Show(TRUE) for modal dialogs which returns return code
 int wxDialog::ShowModal()
 {

+    m_endModalCalled = FALSE;

     if ( !IsModal() )
     {
         SetModal(TRUE);
     if ( !IsModal() )
     {
         SetModal(TRUE);


@@ -365,6 +364,7 @@ int wxDialog::ShowModal()
 //     dialogs and should work for both of them
 void wxDialog::EndModal(int retCode)
 {
 //     dialogs and should work for both of them
 void wxDialog::EndModal(int retCode)
 {

+    m_endModalCalled = TRUE;

     SetReturnCode(retCode);
 
     Show(FALSE);
     SetReturnCode(retCode);
 
     Show(FALSE);


@@ -431,7 +431,7 @@ void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event))
 #if wxUSE_CTL3D
     Ctl3dColorChange();
 #else
 #if wxUSE_CTL3D
     Ctl3dColorChange();
 #else

-    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
+    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));

     Refresh();
 #endif
 }
     Refresh();
 #endif
 }


@@ -440,48 +440,34 @@ void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event))
 // dialog window proc
 // ---------------------------------------------------------------------------
 
 // dialog window proc
 // ---------------------------------------------------------------------------
 

-long wxDialog::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
+WXLRESULT wxDialog::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)

 {
 {

-    long rc = 0;
+    WXLRESULT rc = 0;

     bool processed = FALSE;
 
     switch ( message )
     {
     bool processed = FALSE;
 
     switch ( message )
     {

-#if 0 // now that we got owner window right it doesn't seem to be needed
-        case WM_ACTIVATE:
-            switch ( LOWORD(wParam) )
-            {
-                case WA_ACTIVE:
-                case WA_CLICKACTIVE:
-                    if ( IsModalShowing() && GetParent() )
-                    {
-                        // bring the owner window to top as the standard dialog
-                        // boxes do
-                        if ( !::SetWindowPos
-                                (
-                                    GetHwndOf(GetParent()),
-                                    GetHwnd(),
-                                    0, 0,
-                                    0, 0,
-                                    SWP_NOACTIVATE |
-                                    SWP_NOMOVE |
-                                    SWP_NOSIZE
-                                ) )
-                        {
-                            wxLogLastError(wxT("SetWindowPos(SWP_NOACTIVATE)"));
-                        }
-                    }
-                    // fall through to process it normally as well
-            }
-            break;
-#endif // 0
-

         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_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:
+            // the Windows dialogs unfortunately are not meant to be resizeable
+            // at all and their standard class doesn't include CS_[VH]REDRAW
+            // styles which means that the window is not refreshed properly
+            // after the resize and no amount of WS_CLIPCHILDREN/SIBLINGS can
+            // help with it - so we have to refresh it manually which certainly
+            // creates flicker but at least doesn't show garbage on the screen
+            rc = wxWindow::MSWWindowProc(message, wParam, lParam);
+            processed = TRUE;
+            if ( HasFlag(wxFULL_REPAINT_ON_RESIZE) )
+            {
+                ::InvalidateRect(GetHwnd(), NULL, FALSE /* erase bg */);
+            }
+            break;
+

 #ifndef __WXMICROWIN__
         case WM_SETCURSOR:
             // we want to override the busy cursor for modal dialogs:
 #ifndef __WXMICROWIN__
         case WM_SETCURSOR:
             // we want to override the busy cursor for modal dialogs: