Ensure there is valid context for DrawRectangle

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

diff --git a/src/msw/datectrl.cpp b/src/msw/datectrl.cpp
index ec84f53d880bfd17498ccb9761086402216d0ef8..02de59289bc2ee04897ac261581a22a579cbba82 100644 (file)
--- a/src/msw/datectrl.cpp
+++ b/src/msw/datectrl.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        msw/datectrl.cpp
+// Name:        src/msw/datectrl.cpp

 // Purpose:     wxDatePickerCtrl implementation
 // Author:      Vadim Zeitlin
 // Modified by:
 // Purpose:     wxDatePickerCtrl implementation
 // Author:      Vadim Zeitlin
 // Modified by:


@@ -23,65 +23,27 @@
     #pragma hdrstop
 #endif
 
     #pragma hdrstop
 #endif
 

+#if wxUSE_DATEPICKCTRL
+

 #ifndef WX_PRECOMP
 #ifndef WX_PRECOMP

+    #include "wx/msw/wrapwin.h"
+    #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
+    #include "wx/app.h"
+    #include "wx/intl.h"
+    #include "wx/dcclient.h"
+    #include "wx/settings.h"
+    #include "wx/msw/private.h"

 #endif
 
 #endif
 

-#if wxUSE_DATEPICKCTRL
-

 #include "wx/datectrl.h"
 #include "wx/datectrl.h"

-#include "wx/app.h"
-#include "wx/intl.h"
-#include "wx/dynlib.h"
-
-#define _WX_DEFINE_DATE_EVENTS_

 #include "wx/dateevt.h"
 
 #include "wx/dateevt.h"
 

-#include "wx/msw/wrapwin.h"
-#include "wx/msw/wrapcctl.h"
-#include "wx/msw/private.h"
-
-// apparently some versions of mingw define these macros erroneously
-#ifndef DateTime_GetSystemtime
-    #define DateTime_GetSystemtime DateTime_GetSystemTime
-#endif
-
-#ifndef DateTime_SetSystemtime
-    #define DateTime_SetSystemtime DateTime_SetSystemTime
-#endif
-

 IMPLEMENT_DYNAMIC_CLASS(wxDatePickerCtrl, wxControl)
 
 // ============================================================================
 // implementation
 // ============================================================================
 
 IMPLEMENT_DYNAMIC_CLASS(wxDatePickerCtrl, wxControl)
 
 // ============================================================================
 // implementation
 // ============================================================================
 

-// ----------------------------------------------------------------------------
-// helpers for wxDateTime <-> SYSTEMTIME conversion
-// ----------------------------------------------------------------------------
-
-static inline void wxFromSystemTime(wxDateTime *dt, const SYSTEMTIME& st)
-{
-    dt->Set(st.wDay,
-            wx_static_cast(wxDateTime::Month, wxDateTime::Jan + st.wMonth - 1),
-            st.wYear,
-            0, 0, 0);
-}
-
-static inline void wxToSystemTime(SYSTEMTIME *st, const wxDateTime& dt)
-{
-    const wxDateTime::Tm tm(dt.GetTm());
-
-    st->wYear = (WXWORD)tm.year;
-    st->wMonth = (WXWORD)(tm.mon - wxDateTime::Jan + 1);
-    st->wDay = tm.mday;
-
-    st->wDayOfWeek =
-    st->wHour =
-    st->wMinute =
-    st->wSecond =
-    st->wMilliseconds = 0;
-}
-

 // ----------------------------------------------------------------------------
 // wxDatePickerCtrl creation
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxDatePickerCtrl creation
 // ----------------------------------------------------------------------------


@@ -96,57 +58,13 @@ wxDatePickerCtrl::Create(wxWindow *parent,
                          const wxValidator& validator,
                          const wxString& name)
 {
                          const wxValidator& validator,
                          const wxString& name)
 {

-    // although we already call InitCommonControls() in app.cpp which is
-    // supposed to initialize all common controls, in comctl32.dll 4.72 (and
-    // presumably earlier versions 4.70 and 4.71, date time picker not being
-    // supported in < 4.70 anyhow) it does not do it and we have to initialize
-    // it explicitly
-    static bool s_initDone = false; // MT-ok: used from GUI thread only
-    if ( !s_initDone )
-    {
-        if ( wxApp::GetComCtl32Version() < 470 )
-        {
-            wxLogError(_("This system doesn't support date picker control, please upgrade your version of comctl32.dll"));
-
-            return false;
-        }
-
-#if wxUSE_DYNLIB_CLASS
-        INITCOMMONCONTROLSEX icex;
-        icex.dwSize = sizeof(icex);
-        icex.dwICC = ICC_DATE_CLASSES;
-
-        wxDynamicLibrary dllComCtl32(_T("comctl32.dll"), wxDL_VERBATIM);
-
-        typedef BOOL (WINAPI *ICCEx_t)(INITCOMMONCONTROLSEX *);
-        wxDYNLIB_FUNCTION( ICCEx_t, InitCommonControlsEx, dllComCtl32 );
-
-        if ( pfnInitCommonControlsEx )
-        {
-            (*pfnInitCommonControlsEx)(&icex);
-        }
-
-        s_initDone = true;
-#endif        
-    }
-
-

     // use wxDP_SPIN if wxDP_DEFAULT (0) was given as style
     if ( !(style & wxDP_DROPDOWN) )
         style |= wxDP_SPIN;
 
     // use wxDP_SPIN if wxDP_DEFAULT (0) was given as style
     if ( !(style & wxDP_DROPDOWN) )
         style |= wxDP_SPIN;
 

-    // initialize the base class
-    if ( !CreateControl(parent, id, pos, size, style, validator, name) )
-        return false;
-
-    // create the native control
-    if ( !MSWCreateControl(DATETIMEPICK_CLASS, wxEmptyString, pos, size) )
-        return false;
-
-    if ( dt.IsValid() || (style & wxDP_ALLOWNONE) )
-        SetValue(dt);
-
-    return true;
+    return MSWCreateDateTimePicker(parent, id, dt,
+                                   pos, size, style,
+                                   validator, name);

 }
 
 WXDWORD wxDatePickerCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
 }
 
 WXDWORD wxDatePickerCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const


@@ -174,17 +92,9 @@ WXDWORD wxDatePickerCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
 
 // TODO: handle WM_WININICHANGE
 
 
 // TODO: handle WM_WININICHANGE
 

-// ----------------------------------------------------------------------------
-// wxDatePickerCtrl geometry
-// ----------------------------------------------------------------------------
-
-wxSize wxDatePickerCtrl::DoGetBestSize() const
+wxLocaleInfo wxDatePickerCtrl::MSWGetFormat() const

 {
 {

-    const int y = GetCharHeight();
-
-    wxSize best(DEFAULT_ITEM_WIDTH, EDIT_HEIGHT_FROM_CHAR_HEIGHT(y));
-    CacheBestSize(best);
-    return best;
+    return wxLOCALE_SHORT_DATE_FMT;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -193,30 +103,54 @@ wxSize wxDatePickerCtrl::DoGetBestSize() const
 
 void wxDatePickerCtrl::SetValue(const wxDateTime& dt)
 {
 
 void wxDatePickerCtrl::SetValue(const wxDateTime& dt)
 {

-    wxCHECK_RET( dt.IsValid() || HasFlag(wxDP_ALLOWNONE),
-                    _T("this control requires a valid date") );
-
-    SYSTEMTIME st;

     if ( dt.IsValid() )
     if ( dt.IsValid() )

-        wxToSystemTime(&st, dt);
-    if ( !DateTime_SetSystemtime(GetHwnd(),
-                                 dt.IsValid() ? GDT_VALID : GDT_NONE,
-                                 &st) )

     {
     {

-        wxLogDebug(_T("DateTime_SetSystemtime() failed"));
+        // Don't try setting the date if it's out of range: calendar control
+        // under XP (and presumably all the other pre-Vista Windows versions)
+        // doesn't return false from DateTime_SetSystemtime() in this case but
+        // doesn't actually change the date, so we can't update our m_date
+        // unconditionally and would need to check whether it was changed
+        // before doing it. It looks simpler to just check whether it's in
+        // range here instead.
+        //
+        // If we ever drop support for XP we could rely on the return value of
+        // DateTime_SetSystemtime() but this probably won't happen in near
+        // future.
+        wxDateTime dtStart, dtEnd;
+        GetRange(&dtStart, &dtEnd);
+        if ( (dtStart.IsValid() && dt < dtStart) ||
+                (dtEnd.IsValid() && dt > dtEnd) )
+        {
+            // Fail silently, some existing code relies on SetValue() with an
+            // out of range value simply doing nothing -- so don't.
+            return;
+        }

     }
     }

+
+    wxDateTimePickerCtrl::SetValue(dt);
+
+    // we need to keep only the date part, times don't make sense for this
+    // control (in particular, comparisons with other dates would fail)
+    if ( m_date.IsValid() )
+        m_date.ResetTime();

 }
 
 wxDateTime wxDatePickerCtrl::GetValue() const
 {
 }
 
 wxDateTime wxDatePickerCtrl::GetValue() const
 {

+#if wxDEBUG_LEVEL

     wxDateTime dt;
     SYSTEMTIME st;
     if ( DateTime_GetSystemtime(GetHwnd(), &st) == GDT_VALID )
     {
     wxDateTime dt;
     SYSTEMTIME st;
     if ( DateTime_GetSystemtime(GetHwnd(), &st) == GDT_VALID )
     {

-        wxFromSystemTime(&dt, st);
+        dt.SetFromMSWSysDate(st);

     }
 
     }
 

-    return dt;
+    wxASSERT_MSG( m_date.IsValid() == dt.IsValid() &&
+                    (!dt.IsValid() || dt == m_date),
+                  wxT("bug in wxDateTimePickerCtrl: m_date not in sync") );
+#endif // wxDEBUG_LEVEL
+
+    return wxDateTimePickerCtrl::GetValue();

 }
 
 void wxDatePickerCtrl::SetRange(const wxDateTime& dt1, const wxDateTime& dt2)
 }
 
 void wxDatePickerCtrl::SetRange(const wxDateTime& dt1, const wxDateTime& dt2)


@@ -226,19 +160,19 @@ void wxDatePickerCtrl::SetRange(const wxDateTime& dt1, const wxDateTime& dt2)
     DWORD flags = 0;
     if ( dt1.IsValid() )
     {
     DWORD flags = 0;
     if ( dt1.IsValid() )
     {

-        wxToSystemTime(&st[0], dt1);
+        dt1.GetAsMSWSysTime(st + 0);

         flags |= GDTR_MIN;
     }
 
     if ( dt2.IsValid() )
     {
         flags |= GDTR_MIN;
     }
 
     if ( dt2.IsValid() )
     {

-        wxToSystemTime(&st[1], dt2);
+        dt2.GetAsMSWSysTime(st + 1);

         flags |= GDTR_MAX;
     }
 
     if ( !DateTime_SetRange(GetHwnd(), flags, st) )
     {
         flags |= GDTR_MAX;
     }
 
     if ( !DateTime_SetRange(GetHwnd(), flags, st) )
     {

-        wxLogDebug(_T("DateTime_SetRange() failed"));
+        wxLogDebug(wxT("DateTime_SetRange() failed"));

     }
 }
 
     }
 }
 


@@ -250,7 +184,7 @@ bool wxDatePickerCtrl::GetRange(wxDateTime *dt1, wxDateTime *dt2) const
     if ( dt1 )
     {
         if ( flags & GDTR_MIN )
     if ( dt1 )
     {
         if ( flags & GDTR_MIN )

-            wxFromSystemTime(dt1, st[0]);
+            dt1->SetFromMSWSysDate(st[0]);

         else
             *dt1 = wxDefaultDateTime;
     }
         else
             *dt1 = wxDefaultDateTime;
     }


@@ -258,7 +192,7 @@ bool wxDatePickerCtrl::GetRange(wxDateTime *dt1, wxDateTime *dt2) const
     if ( dt2 )
     {
         if ( flags & GDTR_MAX )
     if ( dt2 )
     {
         if ( flags & GDTR_MAX )

-            wxFromSystemTime(dt2, st[1]);
+            dt2->SetFromMSWSysDate(st[1]);

         else
             *dt2 = wxDefaultDateTime;
     }
         else
             *dt2 = wxDefaultDateTime;
     }


@@ -270,28 +204,21 @@ bool wxDatePickerCtrl::GetRange(wxDateTime *dt1, wxDateTime *dt2) const
 // wxDatePickerCtrl events
 // ----------------------------------------------------------------------------
 
 // wxDatePickerCtrl events
 // ----------------------------------------------------------------------------
 

-bool
-wxDatePickerCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
+bool wxDatePickerCtrl::MSWOnDateTimeChange(const NMDATETIMECHANGE& dtch)

 {
 {

-    NMHDR* hdr = (NMHDR *)lParam;
-    switch ( hdr->code )
-    {
-        case DTN_DATETIMECHANGE:
-            NMDATETIMECHANGE *dtch = (NMDATETIMECHANGE *)hdr;
-            wxDateTime dt;
-            if ( dtch->dwFlags == GDT_VALID )
-                wxFromSystemTime(&dt, dtch->st);
-
-            wxDateEvent event(this, dt, wxEVT_DATE_CHANGED);
-            if ( GetEventHandler()->ProcessEvent(event) )
-            {
-                *result = 0;
-                return true;
-            }
-    }
+    wxDateTime dt;
+    if ( dtch.dwFlags == GDT_VALID )
+        dt.SetFromMSWSysDate(dtch.st);

 
 

-    return wxDatePickerCtrlBase::MSWOnNotify(idCtrl, lParam, result);
+    // filter out duplicate DTN_DATETIMECHANGE events which the native
+    // control sends us when using wxDP_DROPDOWN style
+    if ( (m_date.IsValid() == dt.IsValid()) &&
+            (!m_date.IsValid() || dt == m_date) )
+        return false;
+
+    m_date = dt;
+    wxDateEvent event(this, dt, wxEVT_DATE_CHANGED);
+    return HandleWindowEvent(event);

 }
 
 #endif // wxUSE_DATEPICKCTRL
 }
 
 #endif // wxUSE_DATEPICKCTRL

-