added test for writing empty value to the config

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

diff --git a/src/msw/statbmp.cpp b/src/msw/statbmp.cpp
index dfdaec349610705e41aa94fb8a3245ba9b5336e9..f51c590ce6900871319c77fb04b736557d9f4724 100644 (file)
--- a/src/msw/statbmp.cpp
+++ b/src/msw/statbmp.cpp
@@ -6,197 +6,270 @@
 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart and Markus Holzem
 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart and Markus Holzem

-// Licence:    wxWindows license
+// Licence:     wxWindows license

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

+// ===========================================================================
+// declarations
+// ===========================================================================
+
+// ---------------------------------------------------------------------------
+// headers
+// ---------------------------------------------------------------------------
+

 #ifdef __GNUG__
 #ifdef __GNUG__

-#pragma implementation "statbmp.h"
+    #pragma implementation "statbmp.h"

 #endif
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 #endif
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #endif
 

+#if wxUSE_STATBMP
+
+#include "wx/window.h"
+#include "wx/msw/private.h"
+

 #ifndef WX_PRECOMP
 #ifndef WX_PRECOMP

-#include "wx/statbmp.h"
+    #include "wx/icon.h"
+    #include "wx/statbmp.h"

 #endif
 
 #include <stdio.h>
 #endif
 
 #include <stdio.h>

-#include "wx/msw/private.h"

 
 

-#if !USE_SHARED_LIBRARY
+// ---------------------------------------------------------------------------
+// macors
+// ---------------------------------------------------------------------------
+

 IMPLEMENT_DYNAMIC_CLASS(wxStaticBitmap, wxControl)
 IMPLEMENT_DYNAMIC_CLASS(wxStaticBitmap, wxControl)

+
+// ===========================================================================
+// implementation
+// ===========================================================================
+
+// ---------------------------------------------------------------------------
+// wxStaticBitmap
+// ---------------------------------------------------------------------------
+
+bool wxStaticBitmap::Create(wxWindow *parent, wxWindowID id,
+                            const wxGDIImage& bitmap,
+                            const wxPoint& pos,
+                            const wxSize& size,
+                            long style,
+                            const wxString& name)
+{
+    Init();
+
+    SetName(name);
+    if (parent)
+        parent->AddChild(this);
+
+    m_backgroundColour = parent->GetBackgroundColour() ;
+    m_foregroundColour = parent->GetForegroundColour() ;
+
+    if ( id == -1 )
+        m_windowId = (int)NewControlId();
+    else
+        m_windowId = id;
+
+    int x = pos.x;
+    int y = pos.y;
+    int width = size.x;
+    int height = size.y;
+
+    m_windowStyle = style;
+
+    // we may have either bitmap or icon: if a bitmap with mask is passed, we
+    // will transform it to an icon ourselves because otherwise the mask will
+    // be ignored by Windows
+    wxIcon *icon = (wxIcon *)NULL;
+    m_isIcon = bitmap.IsKindOf(CLASSINFO(wxIcon));
+
+#ifdef __WIN16__
+    wxASSERT_MSG( !m_isIcon, "Icons are not supported in wxStaticBitmap under WIN16." );
+#endif
+
+#ifndef __WIN16__
+    if ( !m_isIcon )
+    {
+        const wxBitmap& bmp = (const wxBitmap&)bitmap;
+        wxMask *mask = bmp.GetMask();
+        if ( mask && mask->GetMaskBitmap() )
+        {
+            icon = new wxIcon;
+            icon->CopyFromBitmap(bmp);
+
+            m_isIcon = TRUE;
+        }
+    }

 #endif
 
 #endif
 

-/*
- * wxStaticBitmap
- */
+#ifdef __WIN32__
+    // create a static control with either SS_BITMAP or SS_ICON style depending
+    // on what we have here
+    const wxChar *classname = wxT("STATIC");
+    int winstyle = m_isIcon ? SS_ICON : SS_BITMAP;
+#else // Win16
+    const wxChar *classname = wxT("BUTTON");
+    int winstyle = BS_OWNERDRAW;
+#endif // Win32
+
+    if ( m_windowStyle & wxCLIP_SIBLINGS )
+        winstyle |= WS_CLIPSIBLINGS;

 
 

-bool wxStaticBitmap::Create(wxWindow *parent, const wxWindowID id,
-           const wxBitmap& bitmap,
-           const wxPoint& pos,
-           const wxSize& size,
-           const long style,
-           const wxString& name)
+
+    m_hWnd = (WXHWND)::CreateWindow
+                       (
+                        classname,
+                        wxT(""),
+                        // NOT DISABLED!!! We want to move it in Dialog Editor.
+                        winstyle | WS_CHILD | WS_VISIBLE /* | WS_CLIPSIBLINGS */ , // | WS_DISABLED,
+                        0, 0, 0, 0,
+                        (HWND)parent->GetHWND(),
+                        (HMENU)m_windowId,
+                        wxGetInstance(),
+                        NULL
+                       );
+
+    wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create static bitmap") );
+
+    SetImage(icon ? icon : &bitmap);
+    delete icon; // may be NULL, ok
+
+    // Subclass again for purposes of dialog editing mode
+    SubclassWin(m_hWnd);
+
+    SetFont(GetParent()->GetFont());
+
+    SetSize(x, y, width, height);
+
+    return TRUE;
+}
+
+bool wxStaticBitmap::ImageIsOk() const

 {
 {

-  m_messageBitmap = bitmap;
-  SetName(name);
-  if (parent) parent->AddChild(this);
-
-  m_backgroundColour = parent->GetDefaultBackgroundColour() ;
-  m_foregroundColour = parent->GetDefaultForegroundColour() ;
-
-  if ( id == -1 )
-       m_windowId = (int)NewControlId();
-  else
-       m_windowId = id;
-
-  int x = pos.x;
-  int y = pos.y;
-  int width = size.x;
-  int height = size.y;
-
-  if ( width < 0 && bitmap.Ok() )
-       width = bitmap.GetWidth();
-  if ( height < 0 && bitmap.Ok() )
-       height = bitmap.GetHeight();
-
-  m_windowStyle = style;
-
-  // Use an ownerdraw button to produce a static bitmap, since there's
-  // no ownerdraw static.
-  // TODO: perhaps this should be a static item, with style SS_BITMAP.
-  HWND static_item =
-    CreateWindowEx(0, "BUTTON", "", BS_OWNERDRAW | WS_TABSTOP | WS_CHILD,
-                    0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
-                    wxGetInstance(), NULL);
-  m_hWnd = (WXHWND) static_item;
-
-  // Subclass again for purposes of dialog editing mode
-  SubclassWin((WXHWND) static_item);
-  SetSize(x, y, width, height);
-  return TRUE;
+    return m_image && m_image->Ok();

 }
 
 }
 

-void wxStaticBitmap::SetSize(const int x, const int y, const int width, const int height, const int sizeFlags)
+void wxStaticBitmap::Free()

 {
 {

-  int currentX, currentY;
-  GetPosition(&currentX, &currentY);
-  int x1 = x;
-  int y1 = y;
-
-  if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
-    x1 = currentX;
-  if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
-    y1 = currentY;
-
-  int actualWidth = width;
-  int actualHeight = height;
-
-  int ww, hh;
-  GetSize(&ww, &hh);
-
-  // If we're prepared to use the existing width, then...
-  if (width == -1 && ((sizeFlags & wxSIZE_AUTO_WIDTH) != wxSIZE_AUTO_WIDTH))
-    actualWidth = ww;
-  else actualWidth = width;
-
-  // If we're prepared to use the existing height, then...
-  if (height == -1 && ((sizeFlags & wxSIZE_AUTO_HEIGHT) != wxSIZE_AUTO_HEIGHT))
-    actualHeight = hh;
-  else actualHeight = height;
-
-  MoveWindow((HWND) GetHWND(), x1, y1, actualWidth, actualHeight, TRUE);
-
-  if (!((width == -1) && (height == -1)))
-  {
-#if WXWIN_COMPATIBILITY
-    GetEventHandler()->OldOnSize(actualWidth, actualHeight);
-#else
-    wxSizeEvent event(wxSize(actualWidth, actualHeight), m_windowId);
-    event.eventObject = this;
-    GetEventHandler()->ProcessEvent(event);
-#endif
-  }
+    delete m_image;
+
+    m_image = NULL;

 }
 
 }
 

-void wxStaticBitmap::SetBitmap(const wxBitmap& bitmap)
+wxSize wxStaticBitmap::DoGetBestSize() const

 {
 {

-  m_messageBitmap = bitmap;
-
-  int x, y;
-  int w, h;
-  GetPosition(&x, &y);
-  GetSize(&w, &h);
-  RECT rect;
-  rect.left = x; rect.top = y; rect.right = x + w; rect.bottom = y + h;
-
-  if ( bitmap.Ok() )
-       MoveWindow((HWND) GetHWND(), x, y, bitmap.GetWidth(), bitmap.GetHeight(),
-             FALSE);
-  
-  InvalidateRect((HWND) GetParent()->GetHWND(), &rect, TRUE);
+    // reuse the current size (as wxWindow does) instead of using some
+    // arbitrary default size (as wxControl, our immediate base class, does)
+    return wxWindow::DoGetBestSize();

 }
 
 }
 

-bool wxStaticBitmap::MSWOnDraw(WXDRAWITEMSTRUCT *item)
+void wxStaticBitmap::SetImage(const wxGDIImage* image)

 {
 {

-       long style = GetWindowLong((HWND) GetHWND(), GWL_STYLE);
+    Free();
+
+    const wxIcon *icon = wxDynamicCast(image, wxIcon);
+    m_isIcon = icon != NULL;
+    if ( m_isIcon )
+    {
+        m_image = new wxIcon(*icon);
+    }
+    else
+    {
+        wxASSERT_MSG( wxDynamicCast(image, wxBitmap),
+                      _T("not an icon and not a bitmap?") );
+
+        const wxBitmap *bitmap = (wxBitmap *)image;
+
+        m_image = new wxBitmap(*bitmap);
+    }
+
+    int x, y;
+    int w, h;
+    GetPosition(&x, &y);
+    GetSize(&w, &h);
+

 #ifdef __WIN32__
 #ifdef __WIN32__

-       if ((style & 0xFF) == SS_BITMAP)
-       {
-               // Should we call Default() here?
-//             Default();
-
-               // Let default procedure draw the bitmap, which is defined
-               // in the Windows resource.
-               return FALSE;
-       }
-#endif
+    HANDLE handle = (HANDLE)m_image->GetHandle();
+    ::SendMessage(GetHwnd(), STM_SETIMAGE,
+                  m_isIcon ? IMAGE_ICON : IMAGE_BITMAP, (LPARAM)handle);
+#endif // Win32
+
+    if ( ImageIsOk() )
+    {
+        int width = image->GetWidth(),
+            height = image->GetHeight();
+        if ( width && height )
+        {
+            w = width;
+            h = height;
+
+            ::MoveWindow(GetHwnd(), x, y, width, height, FALSE);
+        }
+    }
+
+    RECT rect;
+    rect.left   = x;
+    rect.top    = y;
+    rect.right  = x + w;
+    rect.bottom = y + h;
+    InvalidateRect(GetHwndOf(GetParent()), &rect, TRUE);
+}

 
 

+// under Win32 we use the standard static control style for this
+#ifdef __WIN16__
+bool wxStaticBitmap::MSWOnDraw(WXDRAWITEMSTRUCT *item)
+{

     LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT) item;
 
     LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT) item;
 

-       wxBitmap* bitmap = &m_messageBitmap;
-       if ( !bitmap->Ok() )
-               return FALSE;
+    wxCHECK_MSG( !m_isIcon, FALSE, _T("icons not supported in wxStaticBitmap") );

 
 

-       HDC hDC = lpDIS->hDC;
-       HDC memDC = ::CreateCompatibleDC(hDC);
+    wxBitmap* bitmap = (wxBitmap *)m_image;
+    if ( !bitmap->Ok() )
+        return FALSE;

 
 

-       HBITMAP old = ::SelectObject(memDC, (HBITMAP) bitmap->GetHBITMAP());
+    HDC hDC = lpDIS->hDC;
+    HDC memDC = ::CreateCompatibleDC(hDC);

 
 

-       if (!old)
-               return FALSE;
+    HBITMAP old = (HBITMAP) ::SelectObject(memDC, (HBITMAP) bitmap->GetHBITMAP());

 
 

-       RECT rect = lpDIS->rcItem;
+    if (!old)
+        return FALSE;

 
 

-       int x = lpDIS->rcItem.left;
-       int y = lpDIS->rcItem.top;
-       int width = lpDIS->rcItem.right - x;
-       int height = lpDIS->rcItem.bottom - y;
+    int x = lpDIS->rcItem.left;
+    int y = lpDIS->rcItem.top;
+    int width = lpDIS->rcItem.right - x;
+    int height = lpDIS->rcItem.bottom - y;

 
 

-       // Centre the bitmap in the control area
-       int x1 = (int) (x + ((width - bitmap->GetWidth()) / 2));
-       int y1 = (int) (y + ((height - bitmap->GetHeight()) / 2));
+    // Centre the bitmap in the control area
+    int x1 = (int) (x + ((width - bitmap->GetWidth()) / 2));
+    int y1 = (int) (y + ((height - bitmap->GetHeight()) / 2));

 
 

-       ::BitBlt(hDC, x1, y1, bitmap->GetWidth(), bitmap->GetHeight(), memDC, 0, 0, SRCCOPY);
+    ::BitBlt(hDC, x1, y1, bitmap->GetWidth(), bitmap->GetHeight(), memDC, 0, 0, SRCCOPY);

 
 

-       ::SelectObject(memDC, old);
+    ::SelectObject(memDC, old);

 
     ::DeleteDC(memDC);
 
     return TRUE;
 }
 
     ::DeleteDC(memDC);
 
     return TRUE;
 }

+#endif // Win16

 
 

-long wxStaticBitmap::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+// We need this or the control can never be moved e.g. in Dialog Editor.
+long wxStaticBitmap::MSWWindowProc(WXUINT nMsg,
+                                   WXWPARAM wParam,
+                                   WXLPARAM lParam)

 {
 {

-  // Ensure that static items get messages. Some controls don't like this
-  // message to be intercepted (e.g. RichEdit), hence the tests.
-  if (nMsg == WM_NCHITTEST)
-    return (long)HTCLIENT;
+    // Ensure that static items get messages. Some controls don't like this
+    // message to be intercepted (e.g. RichEdit), hence the tests.
+    if ( nMsg == WM_NCHITTEST )
+        return (long)HTCLIENT;

 
 

-  return wxWindow::MSWWindowProc(nMsg, wParam, lParam);
+    return wxWindow::MSWWindowProc(nMsg, wParam, lParam);

 }
 
 }
 

+#endif // wxUSE_STATBMP