projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| 5bd0ee99 VZ |
1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/msw/nonownedwnd.cpp | |
| 3 | // Purpose: wxNonOwnedWindow implementation for MSW. | |
| 4 | // Author: Vadim Zeitlin | |
| 5 | // Created: 2011-10-09 (extracted from src/msw/toplevel.cpp) | |
| 6 | // RCS-ID: $Id: $ | |
| 7 | // Copyright: (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org> | |
| 8 | // Licence: wxWindows licence | |
| 9 | /////////////////////////////////////////////////////////////////////////////// | |
| 10 | ||
| 11 | // ============================================================================ | |
| 12 | // declarations | |
| 13 | // ============================================================================ | |
| 14 | ||
| 15 | // ---------------------------------------------------------------------------- | |
| 16 | // headers | |
| 17 | // ---------------------------------------------------------------------------- | |
| 18 | ||
| 19 | // for compilers that support precompilation, includes "wx.h". | |
| 20 | #include "wx/wxprec.h" | |
| 21 | ||
| 22 | #ifdef __BORLANDC__ | |
| 23 | #pragma hdrstop | |
| 24 | #endif | |
| 25 | ||
| 164db177 VZ |
26 | // This class can't be implemented and hence is not used under Win CE. |
| 27 | #ifndef __WXWINCE__ | |
| 28 | ||
| 5bd0ee99 | 29 | #ifndef WX_PRECOMP |
| 3648be1f VZ |
30 | #include "wx/frame.h" // Only for wxFRAME_SHAPED. |
| 31 | #include "wx/region.h" | |
| 32 | #include "wx/msw/private.h" | |
| 5bd0ee99 VZ |
33 | #endif // WX_PRECOMP |
| 34 | ||
| 35 | #include "wx/nonownedwnd.h" | |
| 36 | ||
| 37 | // ============================================================================ | |
| 38 | // wxNonOwnedWindow implementation | |
| 39 | // ============================================================================ | |
| 40 | ||
| 5bd0ee99 VZ |
41 | bool wxNonOwnedWindow::SetShape(const wxRegion& region) |
| 42 | { | |
| 43 | wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false, | |
| 44 | wxT("Shaped windows must be created with the wxFRAME_SHAPED style.")); | |
| 45 | ||
| 46 | // The empty region signifies that the shape should be removed from the | |
| 47 | // window. | |
| 48 | if ( region.IsEmpty() ) | |
| 49 | { | |
| 50 | if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0) | |
| 51 | { | |
| 52 | wxLogLastError(wxT("SetWindowRgn")); | |
| 53 | return false; | |
| 54 | } | |
| 55 | return true; | |
| 56 | } | |
| 57 | ||
| 58 | // Windows takes ownership of the region, so | |
| 59 | // we'll have to make a copy of the region to give to it. | |
| 60 | DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL); | |
| 61 | RGNDATA *rgnData = (RGNDATA*) new char[noBytes]; | |
| 62 | ::GetRegionData(GetHrgnOf(region), noBytes, rgnData); | |
| 63 | HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData); | |
| 64 | delete[] (char*) rgnData; | |
| 65 | ||
| 66 | // SetWindowRgn expects the region to be in coordinates | |
| 67 | // relative to the window, not the client area. Figure | |
| 68 | // out the offset, if any. | |
| 69 | RECT rect; | |
| 70 | DWORD dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE); | |
| 71 | DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE); | |
| 72 | ::GetClientRect(GetHwnd(), &rect); | |
| 73 | ::AdjustWindowRectEx(&rect, dwStyle, ::GetMenu(GetHwnd()) != NULL, dwExStyle); | |
| 74 | ::OffsetRgn(hrgn, -rect.left, -rect.top); | |
| 75 | ||
| 76 | // Now call the shape API with the new region. | |
| 77 | if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0) | |
| 78 | { | |
| 79 | wxLogLastError(wxT("SetWindowRgn")); | |
| 80 | return false; | |
| 81 | } | |
| 82 | return true; | |
| 83 | } | |
| 84 | ||
| 85 | #endif // !__WXWINCE__ |