Return NULL from wxWindow::GetCapture() when the capture is being lost.

[wxWidgets.git] / src / generic / progdlgg.cpp

diff --git a/src/generic/progdlgg.cpp b/src/generic/progdlgg.cpp
index 9cb3d3451fc617b3a158a2421b83a726fecabbfa..7b6fd4701b7345b5deaf463a9ce33265e7c4d09b 100644 (file)
--- a/src/generic/progdlgg.cpp
+++ b/src/generic/progdlgg.cpp
@@ -4,7 +4,6 @@
 // Author:      Karsten Ballueder
 // Modified by:
 // Created:     09.05.1999
 // Author:      Karsten Ballueder
 // Modified by:
 // Created:     09.05.1999

-// RCS-ID:      $Id$

 // Copyright:   (c) Karsten Ballueder
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 // Copyright:   (c) Karsten Ballueder
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////


@@ -87,29 +86,25 @@ wxIMPLEMENT_CLASS(wxProgressDialog, wxDialog)
 // wxGenericProgressDialog creation
 // ----------------------------------------------------------------------------
 
 // wxGenericProgressDialog creation
 // ----------------------------------------------------------------------------
 

-void wxGenericProgressDialog::Init(wxWindow *parent, int maximum, int style)
+void wxGenericProgressDialog::Init()

 {
 {

-    // Initialize the inherited members that we always use (even when we don't
-    // create a valid window here).
-

     // we may disappear at any moment, let the others know about it
     SetExtraStyle(GetExtraStyle() | wxWS_EX_TRANSIENT);
     // we may disappear at any moment, let the others know about it
     SetExtraStyle(GetExtraStyle() | wxWS_EX_TRANSIENT);

-    m_windowStyle |= style;

 
 

-    m_parentTop = wxGetTopLevelParent(parent);
+    // Initialize all our members that we always use (even when we don't
+    // create a valid window in this class).

 
 

+    m_pdStyle = 0;
+    m_parentTop = NULL;

 
 

-    // Initialize our own members.
-    m_state = Uncancelable;
-    m_maximum = maximum;
-
-#if defined(__WXMSW__) || defined(__WXPM__)
-    // we can't have values > 65,536 in the progress control under Windows, so
-    // scale everything down
-    m_factor = m_maximum / 65536 + 1;
-    m_maximum /= m_factor;
-#endif // __WXMSW__
+    m_gauge = NULL;
+    m_msg = NULL;
+    m_elapsed =
+    m_estimated =
+    m_remaining = NULL;

 
 

+    m_state = Uncancelable;
+    m_maximum = 0;

 
     m_timeStart = wxGetCurrentTime();
     m_timeStop = (unsigned long)-1;
 
     m_timeStart = wxGetCurrentTime();
     m_timeStop = (unsigned long)-1;


@@ -117,22 +112,25 @@ void wxGenericProgressDialog::Init(wxWindow *parent, int maximum, int style)
 
     m_skip = false;
 
 
     m_skip = false;
 

+#if !defined(__SMARTPHONE__)
+    m_btnAbort =
+    m_btnSkip = NULL;
+#endif
+

     m_display_estimated =
     m_last_timeupdate =
     m_ctdelay = 0;
 
     m_delay = 3;
 
     m_display_estimated =
     m_last_timeupdate =
     m_ctdelay = 0;
 
     m_delay = 3;
 

-    m_hasAbortButton =
-    m_hasSkipButton = false;
+    m_winDisabler = NULL;
+    m_tempEventLoop = NULL;

 }
 
 }
 

-wxGenericProgressDialog::wxGenericProgressDialog(wxWindow *parent,
-                                                 int maximum,
-                                                 int style)
+wxGenericProgressDialog::wxGenericProgressDialog()

                        : wxDialog()
 {
                        : wxDialog()
 {

-    Init(parent, maximum, style);
+    Init();

 }
 
 wxGenericProgressDialog::wxGenericProgressDialog(const wxString& title,
 }
 
 wxGenericProgressDialog::wxGenericProgressDialog(const wxString& title,


@@ -142,31 +140,52 @@ wxGenericProgressDialog::wxGenericProgressDialog(const wxString& title,
                                                  int style)
                        : wxDialog()
 {
                                                  int style)
                        : wxDialog()
 {

-    Init(parent, maximum, style);
+    Init();

 
     Create( title, message, maximum, parent, style );
 }
 
 
     Create( title, message, maximum, parent, style );
 }
 

-void wxGenericProgressDialog::Create( const wxString& title,
+void wxGenericProgressDialog::SetTopParent(wxWindow* parent)
+{
+    m_parentTop = GetParentForModalDialog(parent, GetWindowStyle());
+}
+
+bool wxGenericProgressDialog::Create( const wxString& title,

                                       const wxString& message,
                                       int maximum,
                                       wxWindow *parent,
                                       int style )
 {
                                       const wxString& message,
                                       int maximum,
                                       wxWindow *parent,
                                       int style )
 {

-    wxDialog::Create(GetParentForModalDialog(parent, style), wxID_ANY, title);
+    SetTopParent(parent);
+
+    m_parentTop = wxGetTopLevelParent(parent);
+    m_pdStyle = style;
+
+    wxWindow* const
+        realParent = GetParentForModalDialog(parent, GetWindowStyle());

 
 

-    SetParent( GetParentForModalDialog(parent, style) );
-    SetTitle( title );
+    if (!wxDialog::Create(realParent, wxID_ANY, title))
+        return false;

 
 

-    m_hasAbortButton = (style & wxPD_CAN_ABORT) != 0;
-    m_hasSkipButton = (style & wxPD_CAN_SKIP) != 0;
+    SetMaximum(maximum);
+
+    // We need a running event loop in order to update the dialog and be able
+    // to process clicks on its buttons, so ensure that there is one running
+    // even if this means we have to start it ourselves (this happens most
+    // commonly during the program initialization, e.g. for the progress
+    // dialogs shown from overridden wxApp::OnInit()).
+    if ( !wxEventLoopBase::GetActive() )
+    {
+        m_tempEventLoop = new wxEventLoop;
+        wxEventLoop::SetActive(m_tempEventLoop);
+    }

 
 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
     // we have to remove the "Close" button from the title bar then as it is
     // confusing to have it - it doesn't work anyhow
     //
     // FIXME: should probably have a (extended?) window style for this
 
 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
     // we have to remove the "Close" button from the title bar then as it is
     // confusing to have it - it doesn't work anyhow
     //
     // FIXME: should probably have a (extended?) window style for this

-    if ( !m_hasAbortButton )
+    if ( !HasPDFlag(wxPD_CAN_ABORT) )

     {
         EnableCloseButton(false);
     }
     {
         EnableCloseButton(false);
     }


@@ -176,7 +195,7 @@ void wxGenericProgressDialog::Create( const wxString& title,
     SetLeftMenu();
 #endif
 
     SetLeftMenu();
 #endif
 

-    m_state = m_hasAbortButton ? Continue : Uncancelable;
+    m_state = HasPDFlag(wxPD_CAN_ABORT) ? Continue : Uncancelable;

 
     // top-level sizerTop
     wxSizer * const sizerTop = new wxBoxSizer(wxVERTICAL);
 
     // top-level sizerTop
     wxSizer * const sizerTop = new wxBoxSizer(wxVERTICAL);


@@ -184,29 +203,27 @@ void wxGenericProgressDialog::Create( const wxString& title,
     m_msg = new wxStaticText(this, wxID_ANY, message);
     sizerTop->Add(m_msg, 0, wxLEFT | wxTOP, 2*LAYOUT_MARGIN);
 
     m_msg = new wxStaticText(this, wxID_ANY, message);
     sizerTop->Add(m_msg, 0, wxLEFT | wxTOP, 2*LAYOUT_MARGIN);
 

-    if ( maximum > 0 )
-    {
-        int gauge_style = wxGA_HORIZONTAL;
-        if ( style & wxPD_SMOOTH )
-            gauge_style |= wxGA_SMOOTH;
-        m_gauge = new wxGauge
-                      (
-                        this,
-                        wxID_ANY,
-                        m_maximum,
-                        wxDefaultPosition,
-                        // make the progress bar sufficiently long
-                        wxSize(wxMin(wxGetClientDisplayRect().width/3, 300), -1),
-                        gauge_style
-                      );
-
-        sizerTop->Add(m_gauge, 0, wxLEFT | wxRIGHT | wxTOP | wxEXPAND, 2*LAYOUT_MARGIN);
-        m_gauge->SetValue(0);
-    }
-    else
-    {
-        m_gauge = NULL;
-    }
+    int gauge_style = wxGA_HORIZONTAL;
+    if ( style & wxPD_SMOOTH )
+        gauge_style |= wxGA_SMOOTH;
+
+#ifdef __WXMSW__
+    maximum /= m_factor;
+#endif
+
+    m_gauge = new wxGauge
+                  (
+                    this,
+                    wxID_ANY,
+                    maximum,
+                    wxDefaultPosition,
+                    // make the progress bar sufficiently long
+                    wxSize(wxMin(wxGetClientDisplayRect().width/3, 300), -1),
+                    gauge_style
+                  );
+
+    sizerTop->Add(m_gauge, 0, wxLEFT | wxRIGHT | wxTOP | wxEXPAND, 2*LAYOUT_MARGIN);
+    m_gauge->SetValue(0);

 
     // create the estimated/remaining/total time zones if requested
     m_elapsed =
 
     // create the estimated/remaining/total time zones if requested
     m_elapsed =


@@ -241,9 +258,9 @@ void wxGenericProgressDialog::Create( const wxString& title,
     sizerTop->Add(sizerLabels, 0, wxALIGN_CENTER_HORIZONTAL | wxTOP, LAYOUT_MARGIN);
 
 #if defined(__SMARTPHONE__)
     sizerTop->Add(sizerLabels, 0, wxALIGN_CENTER_HORIZONTAL | wxTOP, LAYOUT_MARGIN);
 
 #if defined(__SMARTPHONE__)

-    if ( m_hasSkipButton )
+    if ( HasPDFlag(wxPD_CAN_SKIP) )

         SetRightMenu(wxID_SKIP, _("Skip"));
         SetRightMenu(wxID_SKIP, _("Skip"));

-    if ( m_hasAbortButton )
+    if ( HasPDFlag(wxPD_CAN_ABORT) )

         SetLeftMenu(wxID_CANCEL);
 #else
     m_btnAbort =
         SetLeftMenu(wxID_CANCEL);
 #else
     m_btnAbort =


@@ -253,28 +270,28 @@ void wxGenericProgressDialog::Create( const wxString& title,
 
     // Windows dialogs usually have buttons in the lower right corner
     const int sizerFlags =
 
     // Windows dialogs usually have buttons in the lower right corner
     const int sizerFlags =

-#if defined(__WXMSW__) || defined(__WXPM__)
+#if defined(__WXMSW__) || defined(__WXPM__) || defined(__WXOSX__)

                            wxALIGN_RIGHT | wxALL
 #else // !MSW
                            wxALIGN_CENTER_HORIZONTAL | wxBOTTOM | wxTOP
 #endif // MSW/!MSW
                            ;
 
                            wxALIGN_RIGHT | wxALL
 #else // !MSW
                            wxALIGN_CENTER_HORIZONTAL | wxBOTTOM | wxTOP
 #endif // MSW/!MSW
                            ;
 

-    if ( m_hasSkipButton )
+    if ( HasPDFlag(wxPD_CAN_SKIP) )

     {
         m_btnSkip = new wxButton(this, wxID_SKIP, _("&Skip"));
 
         buttonSizer->Add(m_btnSkip, 0, sizerFlags, LAYOUT_MARGIN);
     }
 
     {
         m_btnSkip = new wxButton(this, wxID_SKIP, _("&Skip"));
 
         buttonSizer->Add(m_btnSkip, 0, sizerFlags, LAYOUT_MARGIN);
     }
 

-    if ( m_hasAbortButton )
+    if ( HasPDFlag(wxPD_CAN_ABORT) )

     {
         m_btnAbort = new wxButton(this, wxID_CANCEL);
 
         buttonSizer->Add(m_btnAbort, 0, sizerFlags, LAYOUT_MARGIN);
     }
 
     {
         m_btnAbort = new wxButton(this, wxID_CANCEL);
 
         buttonSizer->Add(m_btnAbort, 0, sizerFlags, LAYOUT_MARGIN);
     }
 

-    if (!m_hasSkipButton && !m_hasAbortButton)
+    if ( !HasPDFlag(wxPD_CAN_SKIP | wxPD_CAN_ABORT) )

         buttonSizer->AddSpacer(LAYOUT_MARGIN);
 
     sizerTop->Add(buttonSizer, 0, sizerFlags, LAYOUT_MARGIN );
         buttonSizer->AddSpacer(LAYOUT_MARGIN);
 
     sizerTop->Add(buttonSizer, 0, sizerFlags, LAYOUT_MARGIN );


@@ -298,6 +315,7 @@ void wxGenericProgressDialog::Create( const wxString& title,
     }
 
     Update();
     }
 
     Update();

+    return true;

 }
 
 void wxGenericProgressDialog::UpdateTimeEstimates(int value,
 }
 
 void wxGenericProgressDialog::UpdateTimeEstimates(int value,


@@ -408,7 +426,7 @@ wxGenericProgressDialog::Update(int value, const wxString& newmsg, bool *skip)
     if ( !DoBeforeUpdate(skip) )
         return false;
 
     if ( !DoBeforeUpdate(skip) )
         return false;
 

-    wxASSERT_MSG( value == -1 || m_gauge, wxT("cannot update non existent dialog") );
+    wxCHECK_MSG( m_gauge, false, "dialog should be fully created" );

 
 #ifdef __WXMSW__
     value /= m_factor;
 
 #ifdef __WXMSW__
     value /= m_factor;


@@ -416,8 +434,7 @@ wxGenericProgressDialog::Update(int value, const wxString& newmsg, bool *skip)
 
     wxASSERT_MSG( value <= m_maximum, wxT("invalid progress value") );
 
 
     wxASSERT_MSG( value <= m_maximum, wxT("invalid progress value") );
 

-    if ( m_gauge )
-        m_gauge->SetValue(value);
+    m_gauge->SetValue(value);

 
     UpdateMessage(newmsg);
 
 
     UpdateMessage(newmsg);
 


@@ -450,7 +467,7 @@ wxGenericProgressDialog::Update(int value, const wxString& newmsg, bool *skip)
         // so that we return true below and that out [Cancel] handler knew what
         // to do
         m_state = Finished;
         // so that we return true below and that out [Cancel] handler knew what
         // to do
         m_state = Finished;

-        if( !HasFlag(wxPD_AUTO_HIDE) )
+        if( !HasPDFlag(wxPD_AUTO_HIDE) )

         {
             EnableClose();
             DisableSkip();
         {
             EnableClose();
             DisableSkip();


@@ -464,9 +481,6 @@ wxGenericProgressDialog::Update(int value, const wxString& newmsg, bool *skip)
                 m_msg->SetLabel(_("Done."));
             }
 
                 m_msg->SetLabel(_("Done."));
             }
 

-            wxCHECK_MSG(wxEventLoopBase::GetActive(), false,
-                        "wxGenericProgressDialog::Update needs a running event loop");
-

             // allow the window to repaint:
             // NOTE: since we yield only for UI events with this call, there
             //       should be no side-effects
             // allow the window to repaint:
             // NOTE: since we yield only for UI events with this call, there
             //       should be no side-effects


@@ -503,7 +517,7 @@ bool wxGenericProgressDialog::Pulse(const wxString& newmsg, bool *skip)
     if ( !DoBeforeUpdate(skip) )
         return false;
 
     if ( !DoBeforeUpdate(skip) )
         return false;
 

-    wxASSERT_MSG( m_gauge, wxT("cannot update non existent dialog") );
+    wxCHECK_MSG( m_gauge, false, "dialog should be fully created" );

 
     // show a bit of progress
     m_gauge->Pulse();
 
     // show a bit of progress
     m_gauge->Pulse();


@@ -526,9 +540,6 @@ bool wxGenericProgressDialog::Pulse(const wxString& newmsg, bool *skip)
 
 bool wxGenericProgressDialog::DoBeforeUpdate(bool *skip)
 {
 
 bool wxGenericProgressDialog::DoBeforeUpdate(bool *skip)
 {

-    wxCHECK_MSG(wxEventLoopBase::GetActive(), false,
-                "wxGenericProgressDialog::DoBeforeUpdate needs a running event loop");
-

     // we have to yield because not only we want to update the display but
     // also to process the clicks on the cancel and skip buttons
     // NOTE: using YieldFor() this call shouldn't give re-entrancy problems
     // we have to yield because not only we want to update the display but
     // also to process the clicks on the cancel and skip buttons
     // NOTE: using YieldFor() this call shouldn't give re-entrancy problems


@@ -549,9 +560,6 @@ bool wxGenericProgressDialog::DoBeforeUpdate(bool *skip)
 
 void wxGenericProgressDialog::DoAfterUpdate()
 {
 
 void wxGenericProgressDialog::DoAfterUpdate()
 {

-    wxCHECK_RET(wxEventLoopBase::GetActive(),
-                "wxGenericProgressDialog::DoAfterUpdate needs a running event loop");
-

     // allow the window to repaint:
     // NOTE: since we yield only for UI events with this call, there
     //       should be no side-effects
     // allow the window to repaint:
     // NOTE: since we yield only for UI events with this call, there
     //       should be no side-effects


@@ -582,16 +590,14 @@ bool wxGenericProgressDialog::Show( bool show )
 
 int wxGenericProgressDialog::GetValue() const
 {
 
 int wxGenericProgressDialog::GetValue() const
 {

-    if (m_gauge)
-        return m_gauge->GetValue();
-    return wxNOT_FOUND;
+    wxCHECK_MSG( m_gauge, -1, "dialog should be fully created" );
+
+    return m_gauge->GetValue();

 }
 
 int wxGenericProgressDialog::GetRange() const
 {
 }
 
 int wxGenericProgressDialog::GetRange() const
 {

-    if (m_gauge)
-        return m_gauge->GetRange();
-    return wxNOT_FOUND;
+    return m_maximum;

 }
 
 wxString wxGenericProgressDialog::GetMessage() const
 }
 
 wxString wxGenericProgressDialog::GetMessage() const


@@ -601,29 +607,35 @@ wxString wxGenericProgressDialog::GetMessage() const
 
 void wxGenericProgressDialog::SetRange(int maximum)
 {
 
 void wxGenericProgressDialog::SetRange(int maximum)
 {

-    wxASSERT_MSG(m_gauge, "The dialog should have been constructed with a range > 0");
-    wxASSERT_MSG(maximum > 0, "Invalid range");
+    wxCHECK_RET( m_gauge, "dialog should be fully created" );
+
+    wxCHECK_RET( maximum > 0, "Invalid range" );

 
     m_gauge->SetRange(maximum);
 
     m_gauge->SetRange(maximum);

+
+    SetMaximum(maximum);
+}
+
+void wxGenericProgressDialog::SetMaximum(int maximum)
+{

     m_maximum = maximum;
 
 #if defined(__WXMSW__) || defined(__WXPM__)
     // we can't have values > 65,536 in the progress control under Windows, so
     // scale everything down
     m_factor = m_maximum / 65536 + 1;
     m_maximum = maximum;
 
 #if defined(__WXMSW__) || defined(__WXPM__)
     // we can't have values > 65,536 in the progress control under Windows, so
     // scale everything down
     m_factor = m_maximum / 65536 + 1;

-    m_maximum /= m_factor;

 #endif // __WXMSW__
 }
 
 
 bool wxGenericProgressDialog::WasCancelled() const
 {
 #endif // __WXMSW__
 }
 
 
 bool wxGenericProgressDialog::WasCancelled() const
 {

-    return m_hasAbortButton && m_state == Canceled;
+    return HasPDFlag(wxPD_CAN_ABORT) && m_state == Canceled;

 }
 
 bool wxGenericProgressDialog::WasSkipped() const
 {
 }
 
 bool wxGenericProgressDialog::WasSkipped() const
 {

-    return m_hasSkipButton && m_skip;
+    return HasPDFlag(wxPD_CAN_SKIP) && m_skip;

 }
 
 // static
 }
 
 // static


@@ -713,11 +725,17 @@ wxGenericProgressDialog::~wxGenericProgressDialog()
 {
     // normally this should have been already done, but just in case
     ReenableOtherWindows();
 {
     // normally this should have been already done, but just in case
     ReenableOtherWindows();

+
+    if ( m_tempEventLoop )
+    {
+        wxEventLoopBase::SetActive(NULL);
+        delete m_tempEventLoop;
+    }

 }
 
 void wxGenericProgressDialog::DisableOtherWindows()
 {
 }
 
 void wxGenericProgressDialog::DisableOtherWindows()
 {

-    if ( HasFlag(wxPD_APP_MODAL) )
+    if ( HasPDFlag(wxPD_APP_MODAL) )

     {
         m_winDisabler = new wxWindowDisabler(this);
     }
     {
         m_winDisabler = new wxWindowDisabler(this);
     }


@@ -731,7 +749,7 @@ void wxGenericProgressDialog::DisableOtherWindows()
 
 void wxGenericProgressDialog::ReenableOtherWindows()
 {
 
 void wxGenericProgressDialog::ReenableOtherWindows()
 {

-    if ( HasFlag(wxPD_APP_MODAL) )
+    if ( HasPDFlag(wxPD_APP_MODAL) )

     {
         wxDELETE(m_winDisabler);
     }
     {
         wxDELETE(m_winDisabler);
     }


@@ -748,7 +766,7 @@ void wxGenericProgressDialog::ReenableOtherWindows()
 
 void wxGenericProgressDialog::EnableSkip(bool enable)
 {
 
 void wxGenericProgressDialog::EnableSkip(bool enable)
 {

-    if(m_hasSkipButton)
+    if ( HasPDFlag(wxPD_CAN_SKIP) )

     {
 #ifdef __SMARTPHONE__
         if(enable)
     {
 #ifdef __SMARTPHONE__
         if(enable)


@@ -764,7 +782,7 @@ void wxGenericProgressDialog::EnableSkip(bool enable)
 
 void wxGenericProgressDialog::EnableAbort(bool enable)
 {
 
 void wxGenericProgressDialog::EnableAbort(bool enable)
 {

-    if(m_hasAbortButton)
+    if( HasPDFlag(wxPD_CAN_ABORT) )

     {
 #ifdef __SMARTPHONE__
         if(enable)
     {
 #ifdef __SMARTPHONE__
         if(enable)


@@ -780,7 +798,7 @@ void wxGenericProgressDialog::EnableAbort(bool enable)
 
 void wxGenericProgressDialog::EnableClose()
 {
 
 void wxGenericProgressDialog::EnableClose()
 {

-    if(m_hasAbortButton)
+    if(HasPDFlag(wxPD_CAN_ABORT))

     {
 #ifdef __SMARTPHONE__
         SetLeftMenu(wxID_CANCEL, _("Close"));
     {
 #ifdef __SMARTPHONE__
         SetLeftMenu(wxID_CANCEL, _("Close"));


@@ -796,9 +814,6 @@ void wxGenericProgressDialog::EnableClose()
 
 void wxGenericProgressDialog::UpdateMessage(const wxString &newmsg)
 {
 
 void wxGenericProgressDialog::UpdateMessage(const wxString &newmsg)
 {

-    wxCHECK_RET(wxEventLoopBase::GetActive(),
-                "wxGenericProgressDialog::UpdateMessage needs a running event loop");
-

     if ( !newmsg.empty() && newmsg != m_msg->GetLabel() )
     {
         m_msg->SetLabel(newmsg);
     if ( !newmsg.empty() && newmsg != m_msg->GetLabel() )
     {
         m_msg->SetLabel(newmsg);