getting rid of redundant redraws

[wxWidgets.git] / src / os2 / button.cpp

diff --git a/src/os2/button.cpp b/src/os2/button.cpp
index 46892a89fc769fe17608a0786b09bb0775a2b23b..05a44eb6cc5db80a0057eaffaa307f2bd3c0e334 100644 (file)
--- a/src/os2/button.cpp
+++ b/src/os2/button.cpp
@@ -13,6 +13,7 @@
 #include "wx/wxprec.h"
 
 #ifndef WX_PRECOMP
+    #include "wx/app.h"
     #include "wx/button.h"
     #include "wx/brush.h"
     #include "wx/panel.h"
@@ -22,6 +23,7 @@
     #include "wx/scrolwin.h"
 #endif
 
+#include "wx/stockitem.h"
 #include "wx/os2/private.h"
 
 #define BUTTON_HEIGHT_FROM_CHAR_HEIGHT(cy) (11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)/10)
@@ -42,16 +44,20 @@ IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
 bool wxButton::Create(
   wxWindow*                         pParent
 , wxWindowID                        vId
-, const wxString&                   rsLabel
+, const wxString&                   rsLbl
 , const wxPoint&                    rPos
 , const wxSize&                     rSize
 , long                              lStyle
-#if wxUSE_VALIDATORS
 , const wxValidator&                rValidator
-#endif
 , const wxString&                   rsName
 )
 {
+    wxString rsLabel(rsLbl);
+    if (rsLabel.empty() && wxIsStockID(vId))
+        rsLabel = wxGetStockLabel(vId);
+
+    wxString                        sLabel = ::wxPMTextToLabel(rsLabel);
+
     SetName(rsName);
 #if wxUSE_VALIDATORS
     SetValidator(rValidator);
@@ -74,7 +80,7 @@ bool wxButton::Create(
 
     m_hWnd = (WXHWND)::WinCreateWindow( GetHwndOf(pParent)   // Parent handle
                                        ,WC_BUTTON            // A Button class window
-                                       ,(PSZ)rsLabel.c_str() // Button text
+                                       ,(PSZ)sLabel.c_str()  // Button text
                                        ,lStyle               // Button style
                                        ,0, 0, 0, 0           // Location and size
                                        ,GetHwndOf(pParent)   // Owner handle
@@ -160,7 +166,7 @@ wxSize wxButton::DoGetBestSize() const
     //
     // Need a little extra to make it look right
     //
-    nHeightButton += nHeightChar/1.5;
+    nHeightButton += (int)(nHeightChar/1.5);
 
     if (!HasFlag(wxBU_EXACTFIT))
     {
@@ -231,12 +237,16 @@ void wxButton::SetDefault()
     wxCHECK_RET( pParent, _T("button without parent?") );
 
     //
-    // Set this one as the default button both for wxWindows and Windows
+    // Set this one as the default button both for wxWidgets and Windows
     //
     wxWindow*                       pWinOldDefault = pParent->SetDefaultItem(this);
-    UpdateDefaultStyle( this
-                       ,pWinOldDefault
-                      );
+
+    SetDefaultStyle( wxDynamicCast(pWinOldDefault, wxButton)
+                    ,FALSE
+                   );
+    SetDefaultStyle( this
+                    ,TRUE
+                   );
 } // end of wxButton::SetDefault
 
 void wxButton::SetTmpDefault()
@@ -246,14 +256,14 @@ void wxButton::SetTmpDefault()
     wxCHECK_RET( pParent, _T("button without parent?") );
 
     wxWindow*                       pWinOldDefault = pParent->GetDefaultItem();
+
     pParent->SetTmpDefaultItem(this);
-    if (pWinOldDefault != this)
-    {
-        UpdateDefaultStyle( this
-                           ,pWinOldDefault
-                          );
-    }
-    //else: no styles to update
+    SetDefaultStyle( wxDynamicCast(pWinOldDefault, wxButton)
+                    ,FALSE
+                   );
+    SetDefaultStyle( this
+                    ,TRUE
+                   );
 } // end of wxButton::SetTmpDefault
 
 void wxButton::UnsetTmpDefault()
@@ -266,47 +276,60 @@ void wxButton::UnsetTmpDefault()
 
     wxWindow*                       pWinOldDefault = pParent->GetDefaultItem();
 
-    if (pWinOldDefault != this)
-    {
-        UpdateDefaultStyle( pWinOldDefault
-                           ,this
-                          );
-    }
-    //else: we had been default before anyhow
+    SetDefaultStyle( this
+                    ,FALSE
+                   );
+    SetDefaultStyle( wxDynamicCast(pWinOldDefault, wxButton)
+                    ,TRUE
+                   );
 } // end of wxButton::UnsetTmpDefault
 
-void wxButton::UpdateDefaultStyle(
-  wxWindow*                         pWinDefault
-, wxWindow*                         pWinOldDefault)
+void wxButton::SetDefaultStyle(
+  wxButton*                         pBtn
+, bool                              bOn
+)
 {
-    wxButton*                       pBtnOldDefault = wxDynamicCast(pWinOldDefault, wxButton);
     long                            lStyle;
+    //
+    // We may be called with NULL pointer -- simpler to do the check here than
+    // in the caller which does wxDynamicCast()
+    //
+    if (!pBtn)
+        return;
 
-    if ( pBtnOldDefault && pBtnOldDefault != pWinDefault )
+    //
+    // First, let DefDlgProc() know about the new default button
+    //
+    if (bOn)
+    {
+        if (!wxTheApp->IsActive())
+            return;
+
+        //
+        // In OS/2 the dialog/panel doesn't really know it has a default
+        // button, the default button simply has that style.  We'll just
+        // simulate by setting focus to it
+        //
+        pBtn->SetFocus();
+    }
+    lStyle = ::WinQueryWindowULong(GetHwndOf(pBtn), QWL_STYLE);
+    if (!(lStyle & BS_DEFAULT) == bOn)
     {
-        lStyle = ::WinQueryWindowULong(GetHwndOf(pBtnOldDefault), QWL_STYLE);
         if ((lStyle & BS_USERBUTTON) != BS_USERBUTTON)
         {
-            lStyle &= ~BS_DEFAULT;
-            ::WinSetWindowULong(GetHwndOf(pBtnOldDefault), QWL_STYLE, lStyle);
+            if (bOn)
+                lStyle |= BS_DEFAULT;
+            else
+                lStyle &= ~BS_DEFAULT;
+            ::WinSetWindowULong(GetHwndOf(pBtn), QWL_STYLE, lStyle);
         }
         else
         {
-            // redraw the button - it will notice itself that it's not the
+            //
+            // Redraw the button - it will notice itself that it's not the
             // default one any longer
-            pBtnOldDefault->Refresh();
-        }
-    }
-
-    wxButton*                       pBtnDefault = wxDynamicCast(pWinDefault, wxButton);
-
-    if (pBtnDefault)
-    {
-        lStyle = ::WinQueryWindowULong(GetHwndOf(pBtnDefault), QWL_STYLE);
-        if ((lStyle & BS_USERBUTTON) != BS_USERBUTTON)
-        {
-            lStyle != BS_DEFAULT;
-            ::WinSetWindowULong(GetHwndOf(pBtnDefault), QWL_STYLE, lStyle);
+            //
+            pBtn->Refresh();
         }
     }
 } // end of wxButton::UpdateDefaultStyle