/////////////////////////////////////////////////////////////////////////////
-// Name: statbmp.cpp
+// Name: src/msw/statbmp.cpp
// Purpose: wxStaticBitmap
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Copyright: (c) Julian Smart
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ===========================================================================
// headers
// ---------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "statbmp.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#pragma hdrstop
#endif
-#include "wx/window.h"
-#include "wx/msw/private.h"
+#if wxUSE_STATBMP
+
+#include "wx/statbmp.h"
#ifndef WX_PRECOMP
+ #include "wx/app.h"
+ #include "wx/window.h"
#include "wx/icon.h"
- #include "wx/statbmp.h"
+ #include "wx/dcclient.h"
#endif
+#include "wx/msw/private.h"
+
+#include "wx/sysopt.h"
+
#include <stdio.h>
// ---------------------------------------------------------------------------
// macors
// ---------------------------------------------------------------------------
- IMPLEMENT_DYNAMIC_CLASS(wxStaticBitmap, wxControl)
-
// ===========================================================================
// implementation
// ===========================================================================
// wxStaticBitmap
// ---------------------------------------------------------------------------
-bool wxStaticBitmap::Create(wxWindow *parent, wxWindowID id,
+// 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
+// note that this function will create a new object every time
+// it is called even if the image needs no conversion
+
+static wxGDIImage* ConvertImage( const wxGDIImage& bitmap )
+{
+ bool isIcon = bitmap.IsKindOf( CLASSINFO(wxIcon) );
+
+ if( !isIcon )
+ {
+ wxASSERT_MSG( wxDynamicCast(&bitmap, wxBitmap),
+ wxT("not an icon and not a bitmap?") );
+
+ const wxBitmap& bmp = (const wxBitmap&)bitmap;
+ wxMask *mask = bmp.GetMask();
+ if ( mask && mask->GetMaskBitmap() )
+ {
+ wxIcon* icon = new wxIcon;
+ icon->CopyFromBitmap(bmp);
+
+ return icon;
+ }
+
+ return new wxBitmap( bmp );
+ }
+
+ // copying a bitmap is a cheap operation
+ return new wxIcon( (const wxIcon&)bitmap );
+}
+
+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);
+ if ( !CreateControl(parent, id, pos, size, style, wxDefaultValidator, name) )
+ return false;
- m_backgroundColour = parent->GetBackgroundColour() ;
- m_foregroundColour = parent->GetForegroundColour() ;
+ // 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
+ m_isIcon = bitmap.IsKindOf(CLASSINFO(wxIcon));
- if ( id == -1 )
- m_windowId = (int)NewControlId();
- else
- m_windowId = id;
+ wxGDIImage *image = ConvertImage( bitmap );
+ m_isIcon = image->IsKindOf( CLASSINFO(wxIcon) );
- int x = pos.x;
- int y = pos.y;
- int width = size.x;
- int height = size.y;
+ // create the native control
+ if ( !MSWCreateControl(wxT("STATIC"), wxEmptyString, pos, size) )
+ {
+ // control creation failed
+ return false;
+ }
- m_windowStyle = style;
+ // no need to delete the new image
+ SetImageNoCopy(image);
+
+ // GetBestSize will work properly now, so set the best size if needed
+ SetInitialSize(size);
+
+ // painting manually is reported not to work under Windows CE (see #10093),
+ // so don't do it there even if this probably means that alpha is not
+ // supported there -- but at least bitmaps without alpha appear correctly
+#ifndef __WXWINCE__
+ // Windows versions before XP (and even XP if the application has no
+ // manifest and so the old comctl32.dll is used) don't draw correctly the
+ // images with alpha channel so we need to draw them ourselves and it's
+ // easier to just always do it rather than check if we have an image with
+ // alpha or not
+ if ( wxTheApp->GetComCtl32Version() < 600 )
+ {
+ Connect(wxEVT_PAINT, wxPaintEventHandler(wxStaticBitmap::DoPaintManually));
+ }
+#endif // !__WXWINCE__
- m_isIcon = bitmap.IsKindOf(CLASSINFO(wxIcon));
+ return true;
+}
-#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
+WXDWORD wxStaticBitmap::MSWGetStyle(long style, WXDWORD *exstyle) const
+{
+ WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
- m_hWnd = (WXHWND)::CreateWindow
- (
- classname,
- wxT(""),
- winstyle | WS_CHILD | WS_VISIBLE,
- 0, 0, 0, 0,
- (HWND)parent->GetHWND(),
- (HMENU)m_windowId,
- wxGetInstance(),
- NULL
- );
+ // what kind of control are we?
+ msStyle |= m_isIcon ? SS_ICON : SS_BITMAP;
- wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create static bitmap") );
+ // we use SS_CENTERIMAGE to prevent the control from resizing the bitmap to
+ // fit to its size -- this is unexpected and doesn't happen in other ports
+ //
+ // and SS_NOTIFY is necessary to receive mouse events
+ msStyle |= SS_CENTERIMAGE | SS_NOTIFY;
- SetImage(bitmap);
+ return msStyle;
+}
- // Subclass again for purposes of dialog editing mode
- SubclassWin(m_hWnd);
+bool wxStaticBitmap::ImageIsOk() const
+{
+ return m_image && m_image->IsOk();
+}
- SetFont(GetParent()->GetFont());
+wxIcon wxStaticBitmap::GetIcon() const
+{
+ wxCHECK_MSG( m_image, wxIcon(), wxT("no image in wxStaticBitmap") );
- SetSize(x, y, width, height);
+ // we can't ask for an icon if all we have is a bitmap
+ wxCHECK_MSG( m_isIcon, wxIcon(), wxT("no icon in this wxStaticBitmap") );
- return TRUE;
+ return *(wxIcon *)m_image;
}
-bool wxStaticBitmap::ImageIsOk() const
+wxBitmap wxStaticBitmap::GetBitmap() const
{
- return m_image && m_image->Ok();
+ if ( m_isIcon )
+ {
+ // don't fail because we might have replaced the bitmap with icon
+ // ourselves internally in ConvertImage() to keep the transparency but
+ // the user code doesn't know about it so it still can use GetBitmap()
+ // to retrieve the bitmap
+ return wxBitmap(GetIcon());
+ }
+ else // we have a bitmap
+ {
+ wxCHECK_MSG( m_image, wxBitmap(), wxT("no image in wxStaticBitmap") );
+
+ return *(wxBitmap *)m_image;
+ }
}
void wxStaticBitmap::Free()
{
- delete m_image;
-
- m_image = NULL;
+ wxDELETE(m_image);
}
wxSize wxStaticBitmap::DoGetBestSize() const
{
- // reuse the current size (as wxWindow does) instead of using some
- // arbitrary default size (as wxControl, our immediate base class, does)
- return wxWindow::DoGetBestSize();
+ if ( ImageIsOk() )
+ {
+ wxSize best(m_image->GetWidth(), m_image->GetHeight());
+ CacheBestSize(best);
+ return best;
+ }
+
+ // this is completely arbitrary
+ return wxSize(16, 16);
+}
+
+#ifndef __WXWINCE__
+
+void wxStaticBitmap::DoPaintManually(wxPaintEvent& WXUNUSED(event))
+{
+ wxPaintDC dc(this);
+
+ const wxSize size(GetSize());
+ const wxBitmap bmp(GetBitmap());
+
+ // Clear the background: notice that we're supposed to be transparent, so
+ // use the parent background colour if we don't have our own instead of
+ // falling back to the default
+ const wxWindow *win = UseBgCol() ? this : GetParent();
+ dc.SetBrush(win->GetBackgroundColour());
+ dc.SetPen(*wxTRANSPARENT_PEN);
+ dc.DrawRectangle(0, 0, size.GetWidth(), size.GetHeight());
+
+ // Draw the image in the middle
+ dc.DrawBitmap(bmp,
+ (size.GetWidth() - bmp.GetWidth()) / 2,
+ (size.GetHeight() - bmp.GetHeight()) / 2,
+ true /* use mask */);
+}
+
+#endif // !__WXWINCE__
+
+void wxStaticBitmap::SetImage( const wxGDIImage* image )
+{
+ wxGDIImage* convertedImage = ConvertImage( *image );
+ SetImageNoCopy( convertedImage );
+ InvalidateBestSize();
}
-void wxStaticBitmap::SetImage(const wxGDIImage& bitmap)
+void wxStaticBitmap::SetImageNoCopy( wxGDIImage* image)
{
Free();
- m_isIcon = bitmap.IsKindOf(CLASSINFO(wxIcon));
- if ( m_isIcon )
- m_image = new wxIcon((const wxIcon&)bitmap);
- else
- m_image = new wxBitmap((const wxBitmap &)bitmap);
+ m_isIcon = image->IsKindOf( CLASSINFO(wxIcon) );
+ // the image has already been copied
+ m_image = image;
int x, y;
int w, h;
#ifdef __WIN32__
HANDLE handle = (HANDLE)m_image->GetHandle();
- ::SendMessage(GetHwnd(), STM_SETIMAGE,
+ LONG style = ::GetWindowLong( (HWND)GetHWND(), GWL_STYLE ) ;
+ ::SetWindowLong( (HWND)GetHWND(), GWL_STYLE, ( style & ~( SS_BITMAP|SS_ICON ) ) |
+ ( m_isIcon ? SS_ICON : SS_BITMAP ) );
+ HGDIOBJ oldHandle = (HGDIOBJ)::SendMessage(GetHwnd(), STM_SETIMAGE,
m_isIcon ? IMAGE_ICON : IMAGE_BITMAP, (LPARAM)handle);
+ // detect if this is still the handle we passed before or
+ // if the static-control made a copy of the bitmap!
+ if (m_currentHandle != 0 && oldHandle != (HGDIOBJ) m_currentHandle)
+ {
+ // the static control made a copy and we are responsible for deleting it
+ DeleteObject((HGDIOBJ) oldHandle);
+ }
+ m_currentHandle = (WXHANDLE)handle;
#endif // Win32
if ( ImageIsOk() )
{
- int width = bitmap.GetWidth(),
- height = bitmap.GetHeight();
+ int width = image->GetWidth(),
+ height = image->GetHeight();
if ( width && height )
{
w = width;
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;
-
- wxCHECK_MSG( !m_isIcon, FALSE, _T("icons not supported in wxStaticBitmap") );
-
- wxBitmap* bitmap = (wxBitmap *)m_image;
- if ( !bitmap->Ok() )
- return FALSE;
-
- HDC hDC = lpDIS->hDC;
- HDC memDC = ::CreateCompatibleDC(hDC);
-
- HBITMAP old = (HBITMAP) ::SelectObject(memDC, (HBITMAP) bitmap->GetHBITMAP());
-
- 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;
-
- // 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);
-
- ::SelectObject(memDC, old);
-
- ::DeleteDC(memDC);
-
- return TRUE;
-}
-#endif // Win16
-
-// 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;
-
- return wxWindow::MSWWindowProc(nMsg, wParam, lParam);
+ ::InvalidateRect(GetHwndOf(GetParent()), &rect, TRUE);
}
+#endif // wxUSE_STATBMP
projects / wxWidgets.git / blobdiff