X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/57c208c5759da71a637f0f0f5b7d3dc3eda09c02..9c9c3d7a8f6c4ee3481674e901d34714ee18915d:/src/msw/cursor.cpp?ds=inline diff --git a/src/msw/cursor.cpp b/src/msw/cursor.cpp index 6e8fc77ee2..d834b7dc53 100644 --- a/src/msw/cursor.cpp +++ b/src/msw/cursor.cpp @@ -1,274 +1,489 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: cursor.cpp +// Name: src/msw/cursor.cpp // Purpose: wxCursor class // Author: Julian Smart // Modified by: // Created: 01/02/97 // RCS-ID: $Id$ -// Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows licence +// Copyright: (c) 1997-2003 Julian Smart and Vadim Zeitlin +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// +// ============================================================================ +// declarations +// ============================================================================ + +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + #ifdef __GNUG__ -#pragma implementation "cursor.h" + #pragma implementation "cursor.h" #endif // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif #ifndef WX_PRECOMP -#include -#include "wx/setup.h" -#include "wx/list.h" -#include "wx/utils.h" -#include "wx/app.h" -#include "wx/cursor.h" + #include "wx/list.h" + #include "wx/utils.h" + #include "wx/app.h" + #include "wx/bitmap.h" + #include "wx/icon.h" + #include "wx/cursor.h" #endif +#include "wx/ptr_scpd.h" + +#include "wx/module.h" +#include "wx/image.h" #include "wx/msw/private.h" -#include "wx/msw/dib.h" -#include "assert.h" +#ifndef __WXMICROWIN__ + #include "wx/msw/dib.h" +#endif #if wxUSE_RESOURCE_LOADING_IN_MSW -#include "wx/msw/curico.h" -#include "wx/msw/curicop.h" + #include "wx/msw/curico.h" + #include "wx/msw/curicop.h" #endif -#if !USE_SHARED_LIBRARIES -IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxBitmap) -#endif +// define functions missing in MicroWin +#ifdef __WXMICROWIN__ + static inline void DestroyCursor(HCURSOR) { } + static inline void SetCursor(HCURSOR) { } +#endif // __WXMICROWIN__ -wxCursorRefData::wxCursorRefData(void) -{ - m_width = 32; m_height = 32; - m_hCursor = 0 ; - m_destroyCursor = FALSE; -} +// ---------------------------------------------------------------------------- +// private classes +// ---------------------------------------------------------------------------- -wxCursorRefData::~wxCursorRefData(void) +class WXDLLEXPORT wxCursorRefData : public wxGDIImageRefData { - if ( m_hCursor && m_destroyCursor) - ::DestroyCursor((HICON) m_hCursor); -} +public: + // the second parameter is used to tell us to delete the cursor when we're + // done with it (normally we shouldn't call DestroyCursor() this is why it + // doesn't happen by default) + wxCursorRefData(HCURSOR hcursor = 0, bool takeOwnership = false); -// Cursors -wxCursor::wxCursor(void) + virtual ~wxCursorRefData() { Free(); } + + virtual void Free(); + + + // return the size of the standard cursor: notice that the system only + // supports the cursors of this size + static wxCoord GetStandardWidth(); + static wxCoord GetStandardHeight(); + +private: + bool m_destroyCursor; + + // standard cursor size, computed on first use + static wxSize ms_sizeStd; +}; + +// ---------------------------------------------------------------------------- +// wxWin macros +// ---------------------------------------------------------------------------- + +IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxGDIObject) + +// ---------------------------------------------------------------------------- +// globals +// ---------------------------------------------------------------------------- + +// Current cursor, in order to hang on to cursor handle when setting the cursor +// globally +static wxCursor *gs_globalCursor = NULL; + +// ---------------------------------------------------------------------------- +// private classes +// ---------------------------------------------------------------------------- + +class wxCursorModule : public wxModule { -} +public: + virtual bool OnInit() + { + gs_globalCursor = new wxCursor; + + return TRUE; + } + + virtual void OnExit() + { + delete gs_globalCursor; + gs_globalCursor = (wxCursor *)NULL; + } +}; + +// ---------------------------------------------------------------------------- +// other types +// ---------------------------------------------------------------------------- + +wxDECLARE_SCOPED_ARRAY(unsigned char, ByteArray); +wxDEFINE_SCOPED_ARRAY(unsigned char, ByteArray); + +// ============================================================================ +// implementation +// ============================================================================ + +// ---------------------------------------------------------------------------- +// wxCursorRefData +// ---------------------------------------------------------------------------- + +wxSize wxCursorRefData::ms_sizeStd; -wxCursor::wxCursor(const char WXUNUSED(bits)[], int WXUNUSED(width), int WXUNUSED(height), - int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY), const char WXUNUSED(maskBits)[]) +wxCoord wxCursorRefData::GetStandardWidth() { + if ( !ms_sizeStd.x ) + ms_sizeStd.x = wxSystemSettings::GetMetric(wxSYS_CURSOR_X); + + return ms_sizeStd.x; } -wxCursor::wxCursor(const wxString& cursor_file, long flags, int hotSpotX, int hotSpotY) +wxCoord wxCursorRefData::GetStandardHeight() { - m_refData = new wxIconRefData; - - M_CURSORDATA->m_destroyCursor = FALSE; - M_CURSORDATA->m_hCursor = 0; - M_CURSORDATA->m_ok = FALSE; - if (flags & wxBITMAP_TYPE_CUR_RESOURCE) - { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), cursor_file); - if (M_CURSORDATA->m_hCursor) - M_CURSORDATA->m_ok = TRUE; - else - M_CURSORDATA->m_ok = FALSE; - } - else if (flags & wxBITMAP_TYPE_CUR) - { -#if wxUSE_RESOURCE_LOADING_IN_MSW - M_CURSORDATA->m_hCursor = (WXHCURSOR) ReadCursorFile((char *)(const char *)cursor_file, wxGetInstance(), &M_CURSORDATA->m_width, &M_CURSORDATA->m_height); - M_CURSORDATA->m_destroyCursor = TRUE; -#endif - } - else if (flags & wxBITMAP_TYPE_ICO) - { -#if wxUSE_RESOURCE_LOADING_IN_MSW - M_CURSORDATA->m_hCursor = (WXHCURSOR) IconToCursor((char *)(const char *)cursor_file, wxGetInstance(), hotSpotX, hotSpotY, &M_CURSORDATA->m_width, &M_CURSORDATA->m_height); - M_CURSORDATA->m_destroyCursor = TRUE; -#endif - } - else if (flags & wxBITMAP_TYPE_BMP) - { -#if wxUSE_RESOURCE_LOADING_IN_MSW - HBITMAP hBitmap = 0; - HPALETTE hPalette = 0; - bool success = ReadDIB((char *)(const char *)cursor_file, &hBitmap, &hPalette) != 0; - if (!success) - return; - if (hPalette) - DeleteObject(hPalette); - POINT pnt; - pnt.x = hotSpotX; - pnt.y = hotSpotY; - M_CURSORDATA->m_hCursor = (WXHCURSOR) MakeCursorFromBitmap(wxGetInstance(), hBitmap, &pnt); - M_CURSORDATA->m_destroyCursor = TRUE; - DeleteObject(hBitmap); - if (M_CURSORDATA->m_hCursor) - M_CURSORDATA->m_ok = TRUE; -#endif - } + if ( !ms_sizeStd.y ) + ms_sizeStd.y = wxSystemSettings::GetMetric(wxSYS_CURSOR_Y); + + return ms_sizeStd.y; } -// Cursors by stock number -wxCursor::wxCursor(int cursor_type) +wxCursorRefData::wxCursorRefData(HCURSOR hcursor, bool destroy) { - m_refData = new wxIconRefData; - - switch (cursor_type) - { - case wxCURSOR_WAIT: - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_WAIT); - break; - case wxCURSOR_IBEAM: - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_IBEAM); - break; - case wxCURSOR_CROSS: - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_CROSS); - break; - case wxCURSOR_SIZENWSE: - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENWSE); - break; - case wxCURSOR_SIZENESW: - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENESW); - break; - case wxCURSOR_SIZEWE: - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZEWE); - break; - case wxCURSOR_SIZENS: - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENS); - break; - case wxCURSOR_CHAR: - { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW); - break; - } - case wxCURSOR_HAND: - { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_HAND"); - break; - } - case wxCURSOR_BULLSEYE: - { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_BULLSEYE"); - break; - } - case wxCURSOR_PENCIL: - { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_PENCIL"); - break; - } - case wxCURSOR_MAGNIFIER: + m_hCursor = (WXHCURSOR)hcursor; + + if ( m_hCursor ) { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_MAGNIFIER"); - break; + m_width = GetStandardWidth(); + m_height = GetStandardHeight(); } - case wxCURSOR_NO_ENTRY: + + m_destroyCursor = destroy; +} + +void wxCursorRefData::Free() +{ + if ( m_hCursor ) { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_NO_ENTRY"); - break; + if ( m_destroyCursor ) + ::DestroyCursor((HCURSOR)m_hCursor); + + m_hCursor = 0; } - case wxCURSOR_LEFT_BUTTON: +} + +// ---------------------------------------------------------------------------- +// Cursors +// ---------------------------------------------------------------------------- + +wxCursor::wxCursor() +{ +} + +wxCursor::wxCursor(const wxImage& image) +{ + // image has to be of the standard cursor size, otherwise we won't be able + // to create it + const int w = wxCursorRefData::GetStandardWidth(); + const int h = wxCursorRefData::GetStandardHeight(); + + wxImage image32 = image.Scale(w, h); + + const int imagebitcount = (w*h)/8; + + ByteArray bits(new unsigned char [imagebitcount]), + maskBits(new unsigned char [imagebitcount]); + + int i, j, i8; + unsigned char c, cMask; + + const unsigned char * const rgbBits = image32.GetData(); + + // first create the XOR mask + for ( i = 0; i < imagebitcount; i++ ) { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW); - break; + bits[i] = 0; + i8 = i * 8; + // unlike gtk, the pixels go in the opposite order in the bytes + cMask = 128; + for ( j = 0; j < 8; j++ ) + { + // possible overflow if we do the summation first ? + c = rgbBits[(i8+j)*3]/3 + + rgbBits[(i8+j)*3+1]/3 + + rgbBits[(i8+j)*3+2]/3; + + // if average value is > mid grey + if ( c > 127 ) + bits[i] = bits[i] | cMask; + cMask = cMask / 2; + } } - case wxCURSOR_RIGHT_BUTTON: + + // now the AND one + if ( image32.HasMask() ) { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW); - break; + unsigned char r = image32.GetMaskRed(), + g = image32.GetMaskGreen(), + b = image32.GetMaskBlue(); + + for ( i = 0; i < imagebitcount; i++ ) + { + maskBits[i] = 0x0; + i8 = i * 8; + + cMask = 128; + for ( j = 0; j < 8; j++ ) + { + if ( rgbBits[(i8+j)*3] == r && + rgbBits[(i8+j)*3+1] == g && + rgbBits[(i8+j)*3+2] == b ) + { + maskBits[i] = maskBits[i] | cMask; + } + + cMask = cMask / 2; + } + } } - case wxCURSOR_MIDDLE_BUTTON: + else // no mask in the image { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW); - break; + memset(maskBits.get(), 0, sizeof(unsigned char)*imagebitcount); } - case wxCURSOR_SIZING: + + // determine where should the cursors hot spot be + int hotSpotX = image32.GetOptionInt(wxCUR_HOTSPOT_X); + int hotSpotY = image32.GetOptionInt(wxCUR_HOTSPOT_Y); + if (hotSpotX < 0 || hotSpotX >= w) + hotSpotX = 0; + if (hotSpotY < 0 || hotSpotY >= h) + hotSpotY = 0; + + // do create cursor now + HCURSOR hcursor = ::CreateCursor + ( + wxGetInstance(), + hotSpotX, hotSpotY, + w, h, + /* AND */ maskBits.get(), + /* XOR */ bits.get() + ); + + if ( !hcursor ) { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_SIZING"); - break; + wxLogLastError(_T("CreateCursor")); } - case wxCURSOR_WATCH: + else { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_WATCH"); - break; + m_refData = new wxCursorRefData(hcursor, true /* delete it */); } - case wxCURSOR_SPRAYCAN: +} + +wxCursor::wxCursor(const char WXUNUSED(bits)[], + int WXUNUSED(width), + int WXUNUSED(height), + int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY), + const char WXUNUSED(maskBits)[]) +{ +} + +// 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)) +{ +} + +#else // !__WXMICROWIN__ + +wxCursor::wxCursor(const wxString& filename, + long kind, + int hotSpotX, + int hotSpotY) +{ + HCURSOR hcursor; + switch ( kind ) { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_ROLLER"); - break; + case wxBITMAP_TYPE_CUR_RESOURCE: + hcursor = ::LoadCursor(wxGetInstance(), filename); + break; + + case wxBITMAP_TYPE_CUR: + hcursor = ::LoadCursorFromFile(filename); + break; + + case wxBITMAP_TYPE_ICO: +#if wxUSE_RESOURCE_LOADING_IN_MSW + hcursor = IconToCursor((wxChar *)filename.c_str(), + wxGetInstance(), + hotSpotX, hotSpotY, + NULL, NULL); +#endif // wxUSE_RESOURCE_LOADING_IN_MSW + break; + + case wxBITMAP_TYPE_BMP: + { +#if wxUSE_RESOURCE_LOADING_IN_MSW + HBITMAP hBitmap = 0; + HPALETTE hPalette = 0; + if ( wxReadDIB((wxChar *)filename.c_str(), &hBitmap, &hPalette) ) + { + if (hPalette) + DeleteObject(hPalette); + + POINT pt; + pt.x = hotSpotX; + pt.y = hotSpotY; + hcursor = MakeCursorFromBitmap(wxGetInstance(), hBitmap, &pt); + DeleteObject(hBitmap); +#endif // wxUSE_RESOURCE_LOADING_IN_MSW + } + else + { + hcursor = NULL; + } + } + break; + + default: + wxFAIL_MSG( _T("unknown cursor resource type") ); + + hcursor = NULL; } - case wxCURSOR_PAINT_BRUSH: + + if ( hcursor ) { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_PBRUSH"); - break; + m_refData = new wxCursorRefData(hcursor, true /* delete it later */); + +#if WXWIN_COMPATIBILITY_2 + refData->SetOk(); +#endif // WXWIN_COMPATIBILITY_2 } - case wxCURSOR_POINT_LEFT: +} + +// Cursors by stock number +wxCursor::wxCursor(int idCursor) +{ + // all wxWindows standard cursors + static const struct StdCursor { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_PLEFT"); - break; - } - case wxCURSOR_POINT_RIGHT: + // is this a standard Windows cursor? + bool isStd; + + // the cursor name or id + LPCTSTR name; + } stdCursors[] = { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_PRIGHT"); - break; - } - case wxCURSOR_QUESTION_ARROW: + { true, NULL }, // wxCURSOR_NONE + { true, IDC_ARROW }, // wxCURSOR_ARROW + { false, _T("wxCURSOR_RIGHT_ARROW") }, // wxCURSOR_RIGHT_ARROW + { false, _T("wxCURSOR_BULLSEYE") }, // wxCURSOR_BULLSEYE + { true, IDC_ARROW }, // wxCURSOR_CHAR + { true, IDC_CROSS }, // wxCURSOR_CROSS + { false, _T("wxCURSOR_HAND") }, // wxCURSOR_HAND + { true, IDC_IBEAM }, // wxCURSOR_IBEAM + { true, IDC_ARROW }, // wxCURSOR_LEFT_BUTTON + { false, _T("wxCURSOR_MAGNIFIER") }, // wxCURSOR_MAGNIFIER + { true, IDC_ARROW }, // wxCURSOR_MIDDLE_BUTTON + { true, IDC_NO }, // wxCURSOR_NO_ENTRY + { false, _T("wxCURSOR_PAINT_BRUSH") }, // wxCURSOR_PAINT_BRUSH + { false, _T("wxCURSOR_PENCIL") }, // wxCURSOR_PENCIL + { false, _T("wxCURSOR_POINT_LEFT") }, // wxCURSOR_POINT_LEFT + { false, _T("wxCURSOR_POINT_RIGHT") }, // wxCURSOR_POINT_RIGHT + { true, IDC_HELP }, // wxCURSOR_QUESTION_ARROW + { true, IDC_ARROW }, // wxCURSOR_RIGHT_BUTTON + { true, IDC_SIZENESW }, // wxCURSOR_SIZENESW + { true, IDC_SIZENS }, // wxCURSOR_SIZENS + { true, IDC_SIZENWSE }, // wxCURSOR_SIZENWSE + { true, IDC_SIZEWE }, // wxCURSOR_SIZEWE + { true, IDC_SIZEALL }, // wxCURSOR_SIZING + { false, _T("wxCURSOR_SPRAYCAN") }, // wxCURSOR_SPRAYCAN + { true, IDC_WAIT }, // wxCURSOR_WAIT + { true, IDC_WAIT }, // wxCURSOR_WATCH + { false, _T("wxCURSOR_BLANK") }, // wxCURSOR_BLANK + { true, IDC_APPSTARTING }, // wxCURSOR_ARROWWAIT + + // no entry for wxCURSOR_MAX + }; + + wxCOMPILE_TIME_ASSERT( WXSIZEOF(stdCursors) == wxCURSOR_MAX, + CursorsIdArrayMismatch ); + + wxCHECK_RET( idCursor > 0 && (size_t)idCursor < WXSIZEOF(stdCursors), + _T("invalid cursor id in wxCursor() ctor") ); + + const StdCursor& stdCursor = stdCursors[idCursor]; + + HCURSOR hcursor = ::LoadCursor(stdCursor.isStd ? NULL : wxGetInstance(), + stdCursor.name); + + if ( !hcursor ) { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_QARROW"); - break; + wxLogLastError(_T("LoadCursor")); } - case wxCURSOR_BLANK: + else { - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), "wxCURSOR_BLANK"); - break; + m_refData = new wxCursorRefData(hcursor); } - default: - case wxCURSOR_ARROW: - M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW); - break; - } } -wxCursor::~wxCursor(void) +#endif // __WXMICROWIN__/!__WXMICROWIN__ + +wxCursor::~wxCursor() { -// FreeResource(TRUE); } -bool wxCursor::FreeResource(bool WXUNUSED(force)) +// ---------------------------------------------------------------------------- +// other wxCursor functions +// ---------------------------------------------------------------------------- + +bool wxCursor::operator==(const wxCursor& cursor) const { - if (M_CURSORDATA && M_CURSORDATA->m_hCursor && M_CURSORDATA->m_destroyCursor) - { - DestroyCursor((HCURSOR) M_CURSORDATA->m_hCursor); - M_CURSORDATA->m_hCursor = 0; - } - return TRUE; + if ( !m_refData ) + return !cursor.m_refData; + + return cursor.m_refData && + ((wxCursorRefData *)m_refData)->m_hCursor == + ((wxCursorRefData *)cursor.m_refData)->m_hCursor; } -void wxCursor::SetHCURSOR(WXHCURSOR cursor) +wxGDIImageRefData *wxCursor::CreateData() const { - if ( !M_CURSORDATA ) - m_refData = new wxCursorRefData; - - M_CURSORDATA->m_hCursor = cursor; + return new wxCursorRefData; } +// ---------------------------------------------------------------------------- // Global cursor setting +// ---------------------------------------------------------------------------- + +const wxCursor *wxGetGlobalCursor() +{ + return gs_globalCursor; +} + void wxSetCursor(const wxCursor& cursor) { - extern wxCursor *g_globalCursor; - if ( g_globalCursor ) - (*g_globalCursor) = cursor; + if ( cursor.Ok() ) + { + ::SetCursor(GetHcursorOf(cursor)); - if (cursor.Ok() && cursor.GetHCURSOR()) - ::SetCursor((HCURSOR) cursor.GetHCURSOR()); + if ( gs_globalCursor ) + *gs_globalCursor = cursor; + } }