fixed wxImage->wxBitmap conversion for images with alpha channel

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

diff --git a/src/msw/listbox.cpp b/src/msw/listbox.cpp
index 1102d6f012b5d6325b4d4747615810b24f6a0832..c1cd5c2e0d2ce429d22800143ae8ebc17b49637a 100644 (file)
--- a/src/msw/listbox.cpp
+++ b/src/msw/listbox.cpp
@@ -59,7 +59,7 @@ wxBEGIN_FLAGS( wxListBoxStyle )
     wxFLAGS_MEMBER(wxBORDER_RAISED)
     wxFLAGS_MEMBER(wxBORDER_STATIC)
     wxFLAGS_MEMBER(wxBORDER_NONE)
     wxFLAGS_MEMBER(wxBORDER_RAISED)
     wxFLAGS_MEMBER(wxBORDER_STATIC)
     wxFLAGS_MEMBER(wxBORDER_NONE)

-    
+

     // old style border flags
     wxFLAGS_MEMBER(wxSIMPLE_BORDER)
     wxFLAGS_MEMBER(wxSUNKEN_BORDER)
     // old style border flags
     wxFLAGS_MEMBER(wxSIMPLE_BORDER)
     wxFLAGS_MEMBER(wxSUNKEN_BORDER)


@@ -91,28 +91,28 @@ wxEND_FLAGS( wxListBoxStyle )
 IMPLEMENT_DYNAMIC_CLASS_XTI(wxListBox, wxControl,"wx/listbox.h")
 
 wxBEGIN_PROPERTIES_TABLE(wxListBox)
 IMPLEMENT_DYNAMIC_CLASS_XTI(wxListBox, wxControl,"wx/listbox.h")
 
 wxBEGIN_PROPERTIES_TABLE(wxListBox)

-       wxEVENT_PROPERTY( Select , wxEVT_COMMAND_LISTBOX_SELECTED , wxCommandEvent )
-       wxEVENT_PROPERTY( DoubleClick , wxEVT_COMMAND_LISTBOX_DOUBLECLICKED , wxCommandEvent )
+    wxEVENT_PROPERTY( Select , wxEVT_COMMAND_LISTBOX_SELECTED , wxCommandEvent )
+    wxEVENT_PROPERTY( DoubleClick , wxEVT_COMMAND_LISTBOX_DOUBLECLICKED , wxCommandEvent )

 
 

-    wxPROPERTY( Font , wxFont , SetFont , GetFont  , , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+    wxPROPERTY( Font , wxFont , SetFont , GetFont  , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group"))

     wxPROPERTY_COLLECTION( Choices , wxArrayString , wxString , AppendString , GetStrings, 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
     wxPROPERTY_COLLECTION( Choices , wxArrayString , wxString , AppendString , GetStrings, 0 /*flags*/ , wxT("Helpstring") , wxT("group") )

-       wxPROPERTY( Selection ,int, SetSelection, GetSelection,, 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
-    wxPROPERTY_FLAGS( WindowStyle , wxListBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
+    wxPROPERTY( Selection ,int, SetSelection, GetSelection, EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
+    wxPROPERTY_FLAGS( WindowStyle , wxListBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style

 wxEND_PROPERTIES_TABLE()
 
 wxBEGIN_HANDLERS_TABLE(wxListBox)
 wxEND_HANDLERS_TABLE()
 
 wxEND_PROPERTIES_TABLE()
 
 wxBEGIN_HANDLERS_TABLE(wxListBox)
 wxEND_HANDLERS_TABLE()
 

-wxCONSTRUCTOR_4( wxListBox , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size ) 
+wxCONSTRUCTOR_4( wxListBox , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size )

 #else
 IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
 #endif
 
 /*
 TODO PROPERTIES
 #else
 IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
 #endif
 
 /*
 TODO PROPERTIES

-       selection
-       content
-               item
+    selection
+    content
+        item

 */
 
 // ============================================================================
 */
 
 // ============================================================================


@@ -161,94 +161,33 @@ bool wxListBox::Create(wxWindow *parent,
                        const wxSize& size,
                        int n, const wxString choices[],
                        long style,
                        const wxSize& size,
                        int n, const wxString choices[],
                        long style,

-                       const wxValidator& wxVALIDATOR_PARAM(validator),
+                       const wxValidator& validator,

                        const wxString& name)
 {
     m_noItems = 0;
                        const wxString& name)
 {
     m_noItems = 0;

-    m_hWnd = 0;

     m_selected = 0;
 
     m_selected = 0;
 

-    SetName(name);
-#if wxUSE_VALIDATORS
-    SetValidator(validator);
-#endif // wxUSE_VALIDATORS
-
-    if (parent)
-        parent->AddChild(this);
-
-    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
-    SetForegroundColour(parent->GetForegroundColour());
-
-    m_windowId = ( id == -1 ) ? (int)NewControlId() : id;
-
-    int x = pos.x;
-    int y = pos.y;
-    int width = size.x;
-    int height = size.y;
-    m_windowStyle = style;
-
-    DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_VSCROLL | WS_TABSTOP |
-                   LBS_NOTIFY | LBS_HASSTRINGS ;
-
-    wxASSERT_MSG( !(style & wxLB_MULTIPLE) || !(style & wxLB_EXTENDED),
-                  _T("only one of listbox selection modes can be specified") );
-
-    if ( (m_windowStyle & wxBORDER_MASK) == wxBORDER_DEFAULT )
-        m_windowStyle |= wxBORDER_SUNKEN;
-
-    if ( m_windowStyle & wxCLIP_SIBLINGS )
-        wstyle |= WS_CLIPSIBLINGS;
-
-    if (m_windowStyle & wxLB_MULTIPLE)
-        wstyle |= LBS_MULTIPLESEL;
-    else if (m_windowStyle & wxLB_EXTENDED)
-        wstyle |= LBS_EXTENDEDSEL;
-
-    if (m_windowStyle & wxLB_ALWAYS_SB)
-        wstyle |= LBS_DISABLENOSCROLL;
-    if (m_windowStyle & wxLB_HSCROLL)
-        wstyle |= WS_HSCROLL;
-    if (m_windowStyle & wxLB_SORT)
-        wstyle |= LBS_SORT;
+    // initialize base class fields
+    if ( !CreateControl(parent, id, pos, size, style, validator, name) )
+        return false;

 
 

-#if wxUSE_OWNER_DRAWN && !defined(__WXWINCE__)
-    if ( m_windowStyle & wxLB_OWNERDRAW ) {
-        // we don't support LBS_OWNERDRAWVARIABLE yet
-        wstyle |= LBS_OWNERDRAWFIXED;
+    // create the native control
+    if ( !MSWCreateControl(_T("LISTBOX"), wxEmptyString, pos, size) )
+    {
+        // control creation failed
+        return false;

     }
     }

-#endif
-
-    // Without this style, you get unexpected heights, so e.g. constraint layout
-    // doesn't work properly
-    wstyle |= LBS_NOINTEGRALHEIGHT;
-
-    WXDWORD exStyle = 0;
-    (void) MSWGetStyle(m_windowStyle, & exStyle) ;
-
-    m_hWnd = (WXHWND)::CreateWindowEx(exStyle, wxT("LISTBOX"), NULL,
-            wstyle ,
-            0, 0, 0, 0,
-            (HWND)parent->GetHWND(), (HMENU)m_windowId,
-            wxGetInstance(), NULL);

 
 

-    wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create listbox") );
-
-    // Subclass again to catch messages
-    SubclassWin(m_hWnd);
-
-    size_t ui;
-    for (ui = 0; ui < (size_t)n; ui++) {
-        Append(choices[ui]);
+    // initialize the contents
+    for ( int i = 0; i < n; i++ )
+    {
+        Append(choices[i]);

     }
 
     }
 

-    if ( (m_windowStyle & wxLB_MULTIPLE) == 0 )
-        SendMessage(GetHwnd(), LB_SETCURSEL, 0, 0);
+    // now we can compute our best size correctly, so do it if necessary
+    SetBestSize(size);

 
 

-    SetFont(parent->GetFont());
-
-    SetSize(x, y, width, height);
-
-    return TRUE;
+    return true;

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


@@ -257,7 +196,7 @@ bool wxListBox::Create(wxWindow *parent,
                        const wxSize& size,
                        const wxArrayString& choices,
                        long style,
                        const wxSize& size,
                        const wxArrayString& choices,
                        long style,

-                       const wxValidator& wxVALIDATOR_PARAM(validator),
+                       const wxValidator& validator,

                        const wxString& name)
 {
     wxCArrayString chs(choices);
                        const wxString& name)
 {
     wxCArrayString chs(choices);


@@ -270,10 +209,47 @@ wxListBox::~wxListBox()
     Free();
 }
 
     Free();
 }
 

-void wxListBox::SetupColours()
+WXDWORD wxListBox::MSWGetStyle(long style, WXDWORD *exstyle) const

 {
 {

-    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
-    SetForegroundColour(GetParent()->GetForegroundColour());
+    WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
+
+    // always show the vertical scrollbar if necessary -- otherwise it is
+    // impossible to use the control with the mouse
+    msStyle |= WS_VSCROLL;
+
+    // we always want to get the notifications
+    msStyle |= LBS_NOTIFY;
+
+    // without this style, you get unexpected heights, so e.g. constraint
+    // layout doesn't work properly
+    msStyle |= LBS_NOINTEGRALHEIGHT;
+
+    wxASSERT_MSG( !(style & wxLB_MULTIPLE) || !(style & wxLB_EXTENDED),
+                  _T("only one of listbox selection modes can be specified") );
+
+    if ( style & wxLB_MULTIPLE )
+        msStyle |= LBS_MULTIPLESEL;
+    else if ( style & wxLB_EXTENDED )
+        msStyle |= LBS_EXTENDEDSEL;
+
+    if ( m_windowStyle & wxLB_ALWAYS_SB )
+        msStyle |= LBS_DISABLENOSCROLL;
+    if ( m_windowStyle & wxLB_HSCROLL )
+        msStyle |= WS_HSCROLL;
+    if ( m_windowStyle & wxLB_SORT )
+        msStyle |= LBS_SORT;
+
+#if wxUSE_OWNER_DRAWN && !defined(__WXWINCE__)
+    if ( m_windowStyle & wxLB_OWNERDRAW )
+    {
+        // we don't support LBS_OWNERDRAWVARIABLE yet and we also always put
+        // the strings in the listbox for simplicity even though we could have
+        // avoided it in this case
+        msStyle |= LBS_OWNERDRAWFIXED | LBS_HASSTRINGS;
+    }
+#endif // wxUSE_OWNER_DRAWN
+
+    return msStyle;

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


@@ -311,6 +287,8 @@ void wxListBox::Delete(int N)
 
 int wxListBox::DoAppend(const wxString& item)
 {
 
 int wxListBox::DoAppend(const wxString& item)
 {

+    InvalidateBestSize();
+

     int index = ListBox_AddString(GetHwnd(), item);
     m_noItems++;
 
     int index = ListBox_AddString(GetHwnd(), item);
     m_noItems++;
 


@@ -414,7 +392,7 @@ void wxListBox::Free()
 
 void wxListBox::SetSelection(int N, bool select)
 {
 
 void wxListBox::SetSelection(int N, bool select)
 {

-    wxCHECK_RET( N == wxNOT_FOUND || 
+    wxCHECK_RET( N == wxNOT_FOUND ||

                     (N >= 0 && N < m_noItems),
                  wxT("invalid index in wxListBox::SetSelection") );
 
                     (N >= 0 && N < m_noItems),
                  wxT("invalid index in wxListBox::SetSelection") );
 


@@ -546,6 +524,8 @@ wxListBox::DoInsertItems(const wxArrayString& items, int pos)
     wxCHECK_RET( pos >= 0 && pos <= m_noItems,
                  wxT("invalid index in wxListBox::InsertItems") );
 
     wxCHECK_RET( pos >= 0 && pos <= m_noItems,
                  wxT("invalid index in wxListBox::InsertItems") );
 

+    InvalidateBestSize();
+

     int nItems = items.GetCount();
     for ( int i = 0; i < nItems; i++ )
     {
     int nItems = items.GetCount();
     for ( int i = 0; i < nItems; i++ )
     {


@@ -561,6 +541,8 @@ wxListBox::DoInsertItems(const wxArrayString& items, int pos)
 
             ListBox_SetItemData(GetHwnd(), idx, pNewItem);
         }
 
             ListBox_SetItemData(GetHwnd(), idx, pNewItem);
         }

+#else
+        wxUnusedVar(idx);

 #endif // wxUSE_OWNER_DRAWN
     }
 
 #endif // wxUSE_OWNER_DRAWN
     }
 


@@ -599,10 +581,6 @@ void wxListBox::SetString(int N, const wxString& s)
     else if ( oldObjData )
         SetClientObject(N, oldObjData);
 
     else if ( oldObjData )
         SetClientObject(N, oldObjData);
 

-    // we may have lost the selection
-    if ( wasSelected )
-        Select(N);
-

 #if wxUSE_OWNER_DRAWN
     if ( m_windowStyle & wxLB_OWNERDRAW )
     {
 #if wxUSE_OWNER_DRAWN
     if ( m_windowStyle & wxLB_OWNERDRAW )
     {


@@ -613,6 +591,10 @@ void wxListBox::SetString(int N, const wxString& s)
         ListBox_SetItemData(GetHwnd(), N, m_aItems[N]);
     }
 #endif  //USE_OWNER_DRAWN
         ListBox_SetItemData(GetHwnd(), N, m_aItems[N]);
     }
 #endif  //USE_OWNER_DRAWN

+
+    // we may have lost the selection
+    if ( wasSelected )
+        Select(N);

 }
 
 int wxListBox::GetCount() const
 }
 
 int wxListBox::GetCount() const


@@ -704,7 +686,7 @@ wxSize wxListBox::DoGetBestSize() const
 
     // the listbox should be slightly larger than the widest string
     int cx, cy;
 
     // the listbox should be slightly larger than the widest string
     int cx, cy;

-    wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
+    wxGetCharSize(GetHWND(), &cx, &cy, GetFont());

 
     wListbox += 3*cx;
 
 
     wListbox += 3*cx;
 


@@ -791,7 +773,7 @@ bool wxListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
 
     wxDC dc;
     dc.SetHDC((WXHDC)hdc);
 
     wxDC dc;
     dc.SetHDC((WXHDC)hdc);

-    dc.SetFont(wxSystemSettings::GetFont(wxSYS_ANSI_VAR_FONT));
+    dc.SetFont(GetFont());

 
     pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE;
     pStruct->itemWidth  = dc.GetCharWidth();
 
     pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE;
     pStruct->itemWidth  = dc.GetCharWidth();