X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a95e38c03464c854af73b960b17db12624bd8f8c..2d956b58023a4955313a1c1531bc70a0deb0b831:/src/msw/button.cpp

diff --git a/src/msw/button.cpp b/src/msw/button.cpp
index 64e3c798a2..2cafeca17e 100644
--- a/src/msw/button.cpp
+++ b/src/msw/button.cpp
@@ -28,6 +28,8 @@
     #pragma hdrstop
 #endif
 
+#if wxUSE_BUTTON
+
 #ifndef WX_PRECOMP
     #include "wx/button.h"
     #include "wx/brush.h"
@@ -66,49 +68,64 @@ bool wxButton::Create(wxWindow *parent,
                       const wxValidator& validator,
                       const wxString& name)
 {
-    if ( !CreateBase(parent, id, pos, size, style, validator, name) )
+    if ( !CreateControl(parent, id, pos, size, style, validator, name) )
         return FALSE;
 
-    parent->AddChild((wxButton *)this);
+    WXDWORD exstyle;
+    WXDWORD msStyle = MSWGetStyle(style, &exstyle);
 
-    m_backgroundColour = parent->GetBackgroundColour();
-    m_foregroundColour = parent->GetForegroundColour();
+#ifdef __WIN32__
+    // if the label contains several lines we must explicitly tell the button
+    // about it or it wouldn't draw it correctly ("\n"s would just appear as
+    // black boxes)
+    //
+    // NB: we do it here and not in MSWGetStyle() because we need the label
+    //     value and m_label is not set yet when MSWGetStyle() is called;
+    //     besides changing BS_MULTILINE during run-time is pointless anyhow
+    if ( label.find(_T('\n')) != wxString::npos )
+    {
+        msStyle |= BS_MULTILINE;
+    }
+#endif // __WIN32__
 
+    return MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, exstyle);
+}
 
-    m_hWnd = (WXHWND)CreateWindowEx
-                     (
-                      MakeExtendedStyle(m_windowStyle),
-                      wxT("BUTTON"),
-                      label,
-                      WS_VISIBLE | WS_TABSTOP | WS_CHILD,
-                      0, 0, 0, 0,
-                      GetWinHwnd(parent),
-                      (HMENU)m_windowId,
-                      wxGetInstance(),
-                      NULL
-                     );
+wxButton::~wxButton()
+{
+}
 
-    // Subclass again for purposes of dialog editing mode
-    SubclassWin(m_hWnd);
+// ----------------------------------------------------------------------------
+// flags
+// ----------------------------------------------------------------------------
 
-    SetFont(parent->GetFont());
+WXDWORD wxButton::MSWGetStyle(long style, WXDWORD *exstyle) const
+{
+    // buttons never have an external border, they draw their own one
+    WXDWORD msStyle = wxControl::MSWGetStyle
+                      (
+                        (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle
+                      );
 
-    SetSize(pos.x, pos.y, size.x, size.y);
+    // we must use WS_CLIPSIBLINGS with the buttons or they would draw over
+    // each other in any resizeable dialog which has more than one button in
+    // the bottom
+    msStyle |= WS_CLIPSIBLINGS;
 
-    return TRUE;
-}
+#ifdef __WIN32__
+    // don't use "else if" here: weird as it is, but you may combine wxBU_LEFT
+    // and wxBU_RIGHT to get BS_CENTER!
+    if ( style & wxBU_LEFT )
+        msStyle |= BS_LEFT;
+    if ( style & wxBU_RIGHT )
+        msStyle |= BS_RIGHT;
+    if ( style & wxBU_TOP )
+        msStyle |= BS_TOP;
+    if ( style & wxBU_BOTTOM )
+        msStyle |= BS_BOTTOM;
+#endif // __WIN32__
 
-wxButton::~wxButton()
-{
-    wxPanel *panel = wxDynamicCast(GetParent(), wxPanel);
-    if ( panel )
-    {
-        if ( panel->GetDefaultItem() == this )
-        {
-            // don't leave the panel with invalid default item
-            panel->SetDefaultItem(NULL);
-        }
-    }
+    return msStyle;
 }
 
 // ----------------------------------------------------------------------------
@@ -138,14 +155,14 @@ wxSize wxButton::DoGetBestSize() const
 }
 
 /* static */
-wxSize wxButton::GetDefaultSize()
+wxSize wxButtonBase::GetDefaultSize()
 {
     static wxSize s_sizeBtn;
 
     if ( s_sizeBtn.x == 0 )
     {
         wxScreenDC dc;
-        dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
+        dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 
         // the size of a standard button in the dialog units is 50x14,
         // translate this to pixels
@@ -169,20 +186,20 @@ wxSize wxButton::GetDefaultSize()
 void wxButton::SetDefault()
 {
     wxWindow *parent = GetParent();
-    wxButton *btnOldDefault = NULL;
-    wxPanel *panel = wxDynamicCast(parent, wxPanel);
-    if ( panel )
+    wxButton *btnOldDefault;
+    if ( parent )
     {
-        btnOldDefault = panel->GetDefaultItem();
-        panel->SetDefaultItem(this);
-    }
+        wxWindow *winOldDefault = parent->SetDefaultItem(this);
+        btnOldDefault = wxDynamicCast(winOldDefault, wxButton);
 
-    if ( parent )
+        ::SendMessage(GetWinHwnd(parent), DM_SETDEFID, m_windowId, 0L);
+    }
+    else // is a button without parent really normal?
     {
-        SendMessage(GetWinHwnd(parent), DM_SETDEFID, m_windowId, 0L);
+        btnOldDefault = NULL;
     }
 
-    if ( btnOldDefault )
+    if ( btnOldDefault && btnOldDefault != this )
     {
         // remove the BS_DEFPUSHBUTTON style from the other button
         long style = GetWindowLong(GetHwndOf(btnOldDefault), GWL_STYLE);
@@ -232,7 +249,7 @@ void wxButton::Command(wxCommandEvent & event)
 // event/message handlers
 // ----------------------------------------------------------------------------
 
-bool wxButton::MSWCommand(WXUINT param, WXWORD id)
+bool wxButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
 {
     bool processed = FALSE;
     switch ( param )
@@ -259,8 +276,11 @@ long wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
     }
     else if ( nMsg == WM_LBUTTONDBLCLK )
     {
-        // trick the base class into thinking that this was just a click
-        nMsg = WM_LBUTTONDOWN;
+        // emulate a click event to force an owner-drawn button to change its
+        // appearance - without this, it won't do it
+        (void)wxControl::MSWWindowProc(WM_LBUTTONDOWN, wParam, lParam);
+
+        // and conitnue with processing the message normally as well
     }
 
     // let the base class do all real processing
@@ -498,3 +518,6 @@ bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis)
 }
 
 #endif // __WIN32__
+
+#endif // wxUSE_BUTTON
+