X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/184b5d99a5382cd7a19888c85aff11f8a21af2f6..12bb29f5432174ecbd65549bda832d70d34a98ae:/src/msw/statbmp.cpp diff --git a/src/msw/statbmp.cpp b/src/msw/statbmp.cpp index de089033e5..34aec58c09 100644 --- a/src/msw/statbmp.cpp +++ b/src/msw/statbmp.cpp @@ -1,200 +1,306 @@ ///////////////////////////////////////////////////////////////////////////// -// 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 #include "wx/msw/private.h" -#if !USE_SHARED_LIBRARY -IMPLEMENT_DYNAMIC_CLASS(wxStaticBitmap, wxControl) -#endif +#include "wx/sysopt.h" -/* - * wxStaticBitmap - */ +#include -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->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; - - 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. - m_hWnd = (WXHWND)CreateWindow - ( - "BUTTON", - "", - BS_OWNERDRAW | WS_TABSTOP | WS_CHILD | WS_VISIBLE, - 0, 0, 0, 0, - (HWND)parent->GetHWND(), - (HMENU)m_windowId, - wxGetInstance(), - NULL - ); - - // Subclass again for purposes of dialog editing mode - SubclassWin(m_hWnd); - - SetFont(* GetParent()->GetFont()); - - SetSize(x, y, width, height); - return TRUE; -} +// --------------------------------------------------------------------------- +// macros +// --------------------------------------------------------------------------- + +wxBEGIN_EVENT_TABLE(wxStaticBitmap, wxStaticBitmapBase) + EVT_SIZE(wxStaticBitmap::WXHandleSize) +wxEND_EVENT_TABLE() + +// =========================================================================== +// implementation +// =========================================================================== + +// --------------------------------------------------------------------------- +// wxStaticBitmap +// --------------------------------------------------------------------------- + +// 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 -void wxStaticBitmap::SetSize(int x, int y, int width, int height, int sizeFlags) +static wxGDIImage* ConvertImage( const wxGDIImage& bitmap ) { - int currentX, currentY; - GetPosition(¤tX, ¤tY); - int x1 = x; - int y1 = y; + bool isIcon = bitmap.IsKindOf( wxCLASSINFO(wxIcon) ); - if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) - x1 = currentX; - if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) - y1 = currentY; + if( !isIcon ) + { + wxASSERT_MSG( wxDynamicCast(&bitmap, wxBitmap), + wxT("not an icon and not a bitmap?") ); - AdjustForParentClientOrigin(x1, y1, sizeFlags); + const wxBitmap& bmp = (const wxBitmap&)bitmap; + wxMask *mask = bmp.GetMask(); + if ( mask && mask->GetMaskBitmap() ) + { + wxIcon* icon = new wxIcon; + icon->CopyFromBitmap(bmp); - int actualWidth = width; - int actualHeight = height; + return icon; + } - int ww, hh; - GetSize(&ww, &hh); + return new wxBitmap( bmp ); + } - // 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; + // copying a bitmap is a cheap operation + return new wxIcon( (const wxIcon&)bitmap ); +} - // 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; +bool wxStaticBitmap::Create(wxWindow *parent, + wxWindowID id, + const wxGDIImage& bitmap, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name) +{ + 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(wxCLASSINFO(wxIcon)); + + wxGDIImage *image = ConvertImage( bitmap ); + m_isIcon = image->IsKindOf( wxCLASSINFO(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; +} + +WXDWORD wxStaticBitmap::MSWGetStyle(long style, WXDWORD *exstyle) const +{ + WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle); - MoveWindow((HWND) GetHWND(), x1, y1, actualWidth, actualHeight, TRUE); + // what kind of control are we? + msStyle |= m_isIcon ? SS_ICON : SS_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; + + return msStyle; } -void wxStaticBitmap::SetBitmap(const wxBitmap& bitmap) +bool wxStaticBitmap::ImageIsOk() 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); + return m_image && m_image->IsOk(); } -bool wxStaticBitmap::MSWOnDraw(WXDRAWITEMSTRUCT *item) +wxIcon wxStaticBitmap::GetIcon() 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 + wxCHECK_MSG( m_image, wxIcon(), wxT("no image in wxStaticBitmap") ); - LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT) item; + // 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") ); - wxBitmap* bitmap = &m_messageBitmap; - if ( !bitmap->Ok() ) - return FALSE; + return *(wxIcon *)m_image; +} - HDC hDC = lpDIS->hDC; - HDC memDC = ::CreateCompatibleDC(hDC); +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; + } +} - HBITMAP old = (HBITMAP) ::SelectObject(memDC, (HBITMAP) bitmap->GetHBITMAP()); +void wxStaticBitmap::Free() +{ + wxDELETE(m_image); +} - if (!old) - return FALSE; +wxSize wxStaticBitmap::DoGetBestClientSize() const +{ + wxSize size; + if ( ImageIsOk() ) + { + size = m_image->GetSize(); + } + else // No image yet + { + // this is completely arbitrary + size.x = + size.y = 16; + } + + return size; +} - int x = lpDIS->rcItem.left; - int y = lpDIS->rcItem.top; - int width = lpDIS->rcItem.right - x; - int height = lpDIS->rcItem.bottom - y; +void wxStaticBitmap::WXHandleSize(wxSizeEvent& event) +{ + // Invalidate everything when our size changes as the image position (it's + // drawn centred in the window client area) changes. + Refresh(); - // Centre the bitmap in the control area - int x1 = (int) (x + ((width - bitmap->GetWidth()) / 2)); - int y1 = (int) (y + ((height - bitmap->GetHeight()) / 2)); + event.Skip(); +} - ::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 ); } -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(); + InvalidateBestSize(); + + m_isIcon = image->IsKindOf( wxCLASSINFO(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