/////////////////////////////////////////////////////////////////////////////
-// 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
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "statbmp.h"
-#endif
+// ===========================================================================
+// declarations
+// ===========================================================================
+
+// ---------------------------------------------------------------------------
+// headers
+// ---------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
-#ifndef WX_PRECOMP
+#if wxUSE_STATBMP
+
#include "wx/statbmp.h"
+
+#ifndef WX_PRECOMP
+ #include "wx/app.h"
+ #include "wx/window.h"
+ #include "wx/icon.h"
+ #include "wx/dcclient.h"
#endif
-#include <stdio.h>
#include "wx/msw/private.h"
-#if !USE_SHARED_LIBRARY
-IMPLEMENT_DYNAMIC_CLASS(wxStaticBitmap, wxControl)
-#endif
+#include "wx/sysopt.h"
+
+#include <stdio.h>
-/*
- * wxStaticBitmap
- */
+// ---------------------------------------------------------------------------
+// macors
+// ---------------------------------------------------------------------------
-bool wxStaticBitmap::Create(wxWindow *parent, wxWindowID id,
- const wxBitmap& bitmap,
- const wxPoint& pos,
- const wxSize& size,
- long style,
- const wxString& name)
-{
- 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;
-}
+// ===========================================================================
+// implementation
+// ===========================================================================
-void wxStaticBitmap::SetSize(int x, int y, int width, int height, int sizeFlags)
-{
- int currentX, currentY;
- GetPosition(¤tX, ¤tY);
- int x1 = x;
- int y1 = y;
+// ---------------------------------------------------------------------------
+// wxStaticBitmap
+// ---------------------------------------------------------------------------
- if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
- x1 = currentX;
- if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
- y1 = currentY;
+// 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
- int actualWidth = width;
- int actualHeight = height;
+static wxGDIImage* ConvertImage( const wxGDIImage& bitmap )
+{
+ bool isIcon = bitmap.IsKindOf( CLASSINFO(wxIcon) );
- int ww, hh;
- GetSize(&ww, &hh);
+ if( !isIcon )
+ {
+ wxASSERT_MSG( wxDynamicCast(&bitmap, wxBitmap),
+ wxT("not an icon and not a bitmap?") );
- // 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;
+ const wxBitmap& bmp = (const wxBitmap&)bitmap;
+ wxMask *mask = bmp.GetMask();
+ if ( mask && mask->GetMaskBitmap() )
+ {
+ wxIcon* icon = new wxIcon;
+ icon->CopyFromBitmap(bmp);
- // 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;
+ return icon;
+ }
- MoveWindow((HWND) GetHWND(), x1, y1, actualWidth, actualHeight, TRUE);
+ return new wxBitmap( bmp );
+ }
+
+ // copying a bitmap is a cheap operation
+ return new wxIcon( (const wxIcon&)bitmap );
}
-void wxStaticBitmap::SetBitmap(const wxBitmap& bitmap)
+bool wxStaticBitmap::Create(wxWindow *parent,
+ wxWindowID id,
+ const wxGDIImage& bitmap,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxString& name)
{
- 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);
+ if ( !CreateControl(parent, id, pos, size, style, wxDefaultValidator, name) )
+ return false;
+
+ // 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));
+
+ wxGDIImage *image = ConvertImage( bitmap );
+ m_isIcon = image->IsKindOf( CLASSINFO(wxIcon) );
+
+ // create the native control
+ if ( !MSWCreateControl(wxT("STATIC"), wxEmptyString, pos, size) )
+ {
+ // control creation failed
+ return false;
+ }
+
+ // 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__
+
+ return true;
}
-bool wxStaticBitmap::MSWOnDraw(WXDRAWITEMSTRUCT *item)
+WXDWORD wxStaticBitmap::MSWGetStyle(long style, WXDWORD *exstyle) const
{
- long style = GetWindowLong((HWND) GetHWND(), GWL_STYLE);
-#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
+ WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
+
+ // what kind of control are we?
+ msStyle |= m_isIcon ? SS_ICON : SS_BITMAP;
- LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT) item;
+ // 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;
- wxBitmap* bitmap = &m_messageBitmap;
- if ( !bitmap->Ok() )
- return FALSE;
+ return msStyle;
+}
- HDC hDC = lpDIS->hDC;
- HDC memDC = ::CreateCompatibleDC(hDC);
+bool wxStaticBitmap::ImageIsOk() const
+{
+ return m_image && m_image->IsOk();
+}
- HBITMAP old = ::SelectObject(memDC, (HBITMAP) bitmap->GetHBITMAP());
+wxIcon wxStaticBitmap::GetIcon() const
+{
+ wxCHECK_MSG( m_image, wxIcon(), wxT("no image in wxStaticBitmap") );
- if (!old)
- return FALSE;
+ // 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") );
- RECT rect = lpDIS->rcItem;
+ return *(wxIcon *)m_image;
+}
- int x = lpDIS->rcItem.left;
- int y = lpDIS->rcItem.top;
- int width = lpDIS->rcItem.right - x;
- int height = lpDIS->rcItem.bottom - y;
+wxBitmap wxStaticBitmap::GetBitmap() const
+{
+ 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()
+{
+ wxDELETE(m_image);
+}
- // Centre the bitmap in the control area
- int x1 = (int) (x + ((width - bitmap->GetWidth()) / 2));
- int y1 = (int) (y + ((height - bitmap->GetHeight()) / 2));
+wxSize wxStaticBitmap::DoGetBestSize() const
+{
+ if ( ImageIsOk() )
+ {
+ wxSize best(m_image->GetWidth(), m_image->GetHeight());
+ CacheBestSize(best);
+ return best;
+ }
+
+ // this is completely arbitrary
+ return wxSize(16, 16);
+}
- ::BitBlt(hDC, x1, y1, bitmap->GetWidth(), bitmap->GetHeight(), memDC, 0, 0, SRCCOPY);
+#ifndef __WXWINCE__
- ::SelectObject(memDC, old);
+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 */);
+}
- ::DeleteDC(memDC);
+#endif // !__WXWINCE__
- return TRUE;
+void wxStaticBitmap::SetImage( const wxGDIImage* image )
+{
+ wxGDIImage* convertedImage = ConvertImage( *image );
+ SetImageNoCopy( convertedImage );
+ InvalidateBestSize();
}
-long wxStaticBitmap::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+void wxStaticBitmap::SetImageNoCopy( wxGDIImage* image)
{
- // 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;
+ Free();
+
+ m_isIcon = image->IsKindOf( CLASSINFO(wxIcon) );
+ // the image has already been copied
+ m_image = image;
- return wxWindow::MSWWindowProc(nMsg, wParam, lParam);
+ int x, y;
+ int w, h;
+ GetPosition(&x, &y);
+ GetSize(&w, &h);
+
+#ifdef __WIN32__
+ HANDLE handle = (HANDLE)m_image->GetHandle();
+ 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 = 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);
}
+#endif // wxUSE_STATBMP
projects / wxWidgets.git / blobdiff