X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/77ffb5937e89927b621128789401db8921fe580f..d485bda109d5ef0fef36a3f737549e9b9f54baab:/src/msw/cursor.cpp?ds=sidebyside diff --git a/src/msw/cursor.cpp b/src/msw/cursor.cpp index c18fe15a4e..ec9b67c969 100644 --- a/src/msw/cursor.cpp +++ b/src/msw/cursor.cpp @@ -6,7 +6,7 @@ // Created: 01/02/97 // RCS-ID: $Id$ // Copyright: (c) 1997-2003 Julian Smart and Vadim Zeitlin -// Licence: wxWidgets licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -17,10 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) - #pragma implementation "cursor.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -28,19 +24,21 @@ #pragma hdrstop #endif +#include "wx/cursor.h" + #ifndef WX_PRECOMP #include "wx/utils.h" #include "wx/app.h" #include "wx/bitmap.h" #include "wx/icon.h" - #include "wx/cursor.h" #include "wx/settings.h" #include "wx/intl.h" + #include "wx/image.h" + #include "wx/module.h" #endif -#include "wx/module.h" -#include "wx/image.h" #include "wx/msw/private.h" +#include "wx/msw/missing.h" // IDC_HAND // define functions missing in MicroWin #ifdef __WXMICROWIN__ @@ -102,13 +100,12 @@ public: { gs_globalCursor = new wxCursor; - return TRUE; + return true; } virtual void OnExit() { - delete gs_globalCursor; - gs_globalCursor = (wxCursor *)NULL; + wxDELETE(gs_globalCursor); } }; @@ -180,19 +177,37 @@ wxCursor::wxCursor(const wxImage& image) const int w = wxCursorRefData::GetStandardWidth(); const int h = wxCursorRefData::GetStandardHeight(); - const int hotSpotX = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X); - const int hotSpotY = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y); + int hotSpotX = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X); + int hotSpotY = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y); + int image_w = image.GetWidth(); + int image_h = image.GetHeight(); - wxASSERT_MSG( hotSpotX >= 0 && hotSpotX < w && - hotSpotY >= 0 && hotSpotY < h, - _T("invalid cursor hot spot coordinates") ); + wxASSERT_MSG( hotSpotX >= 0 && hotSpotX < image_w && + hotSpotY >= 0 && hotSpotY < image_h, + wxT("invalid cursor hot spot coordinates") ); + + wxImage imageSized(image); // final image of correct size + + // if image is too small then place it in the center, resize it if too big + if ((w > image_w) && (h > image_h)) + { + wxPoint offset((w - image_w)/2, (h - image_h)/2); + hotSpotX = hotSpotX + offset.x; + hotSpotY = hotSpotY + offset.y; + + imageSized = image.Size(wxSize(w, h), offset); + } + else if ((w != image_w) || (h != image_h)) + { + hotSpotX = int(hotSpotX * double(w) / double(image_w)); + hotSpotY = int(hotSpotY * double(h) / double(image_h)); + + imageSized = image.Scale(w, h); + } + + HCURSOR hcursor = wxBitmapToHCURSOR( wxBitmap(imageSized), + hotSpotX, hotSpotY ); - HCURSOR hcursor = wxBitmapToHCURSOR - ( - wxBitmap(image.Scale(w, h)), - hotSpotX, - hotSpotY - ); if ( !hcursor ) { wxLogWarning(_("Failed to create cursor.")); @@ -201,34 +216,19 @@ wxCursor::wxCursor(const wxImage& image) m_refData = new wxCursorRefData(hcursor, true /* delete it later */); } -#endif - -wxCursor::wxCursor(const char WXUNUSED(bits)[], - int WXUNUSED(width), - int WXUNUSED(height), - int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY), - const char WXUNUSED(maskBits)[]) -{ -} +#endif // wxUSE_IMAGE // MicroWin doesn't have support needed for the other ctors #ifdef __WXMICROWIN__ -wxCursor::wxCursor(const wxString& WXUNUSED(filename), - long WXUNUSED(kind), - int WXUNUSED(hotSpotX), - int WXUNUSED(hotSpotY)) -{ -} - -wxCursor::wxCursor(int WXUNUSED(cursor_type)) +wxCursor::InitFromStock(wxStockCursor WXUNUSED(cursor_type)) { } #else // !__WXMICROWIN__ wxCursor::wxCursor(const wxString& filename, - long kind, + wxBitmapType kind, int hotSpotX, int hotSpotY) { @@ -236,12 +236,13 @@ wxCursor::wxCursor(const wxString& filename, switch ( kind ) { case wxBITMAP_TYPE_CUR_RESOURCE: - hcursor = ::LoadCursor(wxGetInstance(), filename); + hcursor = ::LoadCursor(wxGetInstance(), filename.t_str()); break; #ifndef __WXWINCE__ + case wxBITMAP_TYPE_ANI: case wxBITMAP_TYPE_CUR: - hcursor = ::LoadCursorFromFile(filename); + hcursor = ::LoadCursorFromFile(filename.t_str()); break; #endif @@ -264,7 +265,7 @@ wxCursor::wxCursor(const wxString& filename, break; default: - wxFAIL_MSG( _T("unknown cursor resource type") ); + wxLogError( wxT("unknown cursor resource type '%d'"), kind ); hcursor = NULL; } @@ -275,8 +276,47 @@ wxCursor::wxCursor(const wxString& filename, } } +namespace +{ + +void ReverseBitmap(HBITMAP bitmap, int width, int height) +{ + MemoryHDC hdc; + SelectInHDC selBitmap(hdc, bitmap); + ::StretchBlt(hdc, width - 1, 0, -width, height, + hdc, 0, 0, width, height, SRCCOPY); +} + +HCURSOR CreateReverseCursor(HCURSOR cursor) +{ + ICONINFO info; + if ( !::GetIconInfo(cursor, &info) ) + return NULL; + + HCURSOR cursorRev = NULL; + + BITMAP bmp; + if ( ::GetObject(info.hbmMask, sizeof(bmp), &bmp) ) + { + ReverseBitmap(info.hbmMask, bmp.bmWidth, bmp.bmHeight); + if ( info.hbmColor ) + ReverseBitmap(info.hbmColor, bmp.bmWidth, bmp.bmHeight); + info.xHotspot = (DWORD)bmp.bmWidth - 1 - info.xHotspot; + + cursorRev = ::CreateIconIndirect(&info); + } + + ::DeleteObject(info.hbmMask); + if ( info.hbmColor ) + ::DeleteObject(info.hbmColor); + + return cursorRev; +} + +} // anonymous namespace + // Cursors by stock number -wxCursor::wxCursor(int idCursor) +void wxCursor::InitFromStock(wxStockCursor idCursor) { // all wxWidgets standard cursors static const struct StdCursor @@ -290,20 +330,20 @@ wxCursor::wxCursor(int idCursor) { { true, NULL }, // wxCURSOR_NONE { true, IDC_ARROW }, // wxCURSOR_ARROW - { false, _T("WXCURSOR_RIGHT_ARROW") }, // wxCURSOR_RIGHT_ARROW - { false, _T("WXCURSOR_BULLSEYE") }, // wxCURSOR_BULLSEYE + { false, wxT("WXCURSOR_RIGHT_ARROW") }, // wxCURSOR_RIGHT_ARROW + { false, wxT("WXCURSOR_BULLSEYE") }, // wxCURSOR_BULLSEYE { true, IDC_ARROW }, // WXCURSOR_CHAR { true, IDC_CROSS }, // WXCURSOR_CROSS - { false, _T("WXCURSOR_HAND") }, // wxCURSOR_HAND + { true, IDC_HAND }, // wxCURSOR_HAND { true, IDC_IBEAM }, // WXCURSOR_IBEAM { true, IDC_ARROW }, // WXCURSOR_LEFT_BUTTON - { false, _T("WXCURSOR_MAGNIFIER") }, // wxCURSOR_MAGNIFIER + { false, wxT("WXCURSOR_MAGNIFIER") }, // wxCURSOR_MAGNIFIER { true, IDC_ARROW }, // WXCURSOR_MIDDLE_BUTTON { true, IDC_NO }, // WXCURSOR_NO_ENTRY - { false, _T("WXCURSOR_PBRUSH") }, // wxCURSOR_PAINT_BRUSH - { false, _T("WXCURSOR_PENCIL") }, // wxCURSOR_PENCIL - { false, _T("WXCURSOR_PLEFT") }, // wxCURSOR_POINT_LEFT - { false, _T("WXCURSOR_PRIGHT") }, // wxCURSOR_POINT_RIGHT + { false, wxT("WXCURSOR_PBRUSH") }, // wxCURSOR_PAINT_BRUSH + { false, wxT("WXCURSOR_PENCIL") }, // wxCURSOR_PENCIL + { false, wxT("WXCURSOR_PLEFT") }, // wxCURSOR_POINT_LEFT + { false, wxT("WXCURSOR_PRIGHT") }, // wxCURSOR_POINT_RIGHT { true, IDC_HELP }, // WXCURSOR_QUESTION_ARROW { true, IDC_ARROW }, // WXCURSOR_RIGHT_BUTTON { true, IDC_SIZENESW }, // WXCURSOR_SIZENESW @@ -311,10 +351,10 @@ wxCursor::wxCursor(int idCursor) { true, IDC_SIZENWSE }, // WXCURSOR_SIZENWSE { true, IDC_SIZEWE }, // WXCURSOR_SIZEWE { true, IDC_SIZEALL }, // WXCURSOR_SIZING - { false, _T("WXCURSOR_PBRUSH") }, // wxCURSOR_SPRAYCAN + { false, wxT("WXCURSOR_PBRUSH") }, // wxCURSOR_SPRAYCAN { true, IDC_WAIT }, // WXCURSOR_WAIT - { false, _T("WXCURSOR_WATCH") }, // WXCURSOR_WATCH - { false, _T("WXCURSOR_BLANK") }, // wxCURSOR_BLANK + { true, IDC_WAIT }, // WXCURSOR_WATCH + { false, wxT("WXCURSOR_BLANK") }, // wxCURSOR_BLANK { true, IDC_APPSTARTING }, // wxCURSOR_ARROWWAIT // no entry for wxCURSOR_MAX @@ -324,20 +364,47 @@ wxCursor::wxCursor(int idCursor) CursorsIdArrayMismatch ); wxCHECK_RET( idCursor > 0 && (size_t)idCursor < WXSIZEOF(stdCursors), - _T("invalid cursor id in wxCursor() ctor") ); + wxT("invalid cursor id in wxCursor() ctor") ); const StdCursor& stdCursor = stdCursors[idCursor]; + bool deleteLater = !stdCursor.isStd; HCURSOR hcursor = ::LoadCursor(stdCursor.isStd ? NULL : wxGetInstance(), stdCursor.name); + // IDC_HAND may not be available on some versions of Windows. + if ( !hcursor && idCursor == wxCURSOR_HAND) + { + hcursor = ::LoadCursor(wxGetInstance(), wxT("WXCURSOR_HAND")); + deleteLater = true; + } + + if ( !hcursor && idCursor == wxCURSOR_RIGHT_ARROW) + { + hcursor = ::LoadCursor(NULL, IDC_ARROW); + if ( hcursor ) + { + hcursor = CreateReverseCursor(hcursor); + deleteLater = true; + } + } + if ( !hcursor ) { - wxLogLastError(_T("LoadCursor")); + if ( !stdCursor.isStd ) + { + // it may be not obvious to the programmer why did loading fail, + // try to help by pointing to the by far the most probable reason + wxFAIL_MSG(wxT("Loading a cursor defined by wxWidgets failed, ") + wxT("did you include include/wx/msw/wx.rc file from ") + wxT("your resource file?")); + } + + wxLogLastError(wxT("LoadCursor")); } else { - m_refData = new wxCursorRefData(hcursor); + m_refData = new wxCursorRefData(hcursor, deleteLater); } } @@ -351,16 +418,6 @@ wxCursor::~wxCursor() // other wxCursor functions // ---------------------------------------------------------------------------- -bool wxCursor::operator==(const wxCursor& cursor) const -{ - if ( !m_refData ) - return !cursor.m_refData; - - return cursor.m_refData && - ((wxCursorRefData *)m_refData)->m_hCursor == - ((wxCursorRefData *)cursor.m_refData)->m_hCursor; -} - wxGDIImageRefData *wxCursor::CreateData() const { return new wxCursorRefData; @@ -377,7 +434,7 @@ const wxCursor *wxGetGlobalCursor() void wxSetCursor(const wxCursor& cursor) { - if ( cursor.Ok() ) + if ( cursor.IsOk() ) { ::SetCursor(GetHcursorOf(cursor)); @@ -385,5 +442,3 @@ void wxSetCursor(const wxCursor& cursor) *gs_globalCursor = cursor; } } - -