X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/04ef50df3a0fa3c343800c554e609f98fc7575cc..9d5507f7a2701395e1d5c121bd877bb9066ee6ea:/src/msw/cursor.cpp?ds=sidebyside

diff --git a/src/msw/cursor.cpp b/src/msw/cursor.cpp
index 2d93aa7419..5e0bb783f9 100644
--- a/src/msw/cursor.cpp
+++ b/src/msw/cursor.cpp
@@ -1,12 +1,12 @@
 /////////////////////////////////////////////////////////////////////////////
-// 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
 /////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
-    #pragma implementation "cursor.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -28,31 +24,62 @@
     #pragma hdrstop
 #endif
 
+#include "wx/cursor.h"
+
 #ifndef WX_PRECOMP
-    #include "wx/list.h"
     #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/msw/private.h"
-#ifndef __WXMICROWIN__
-#include "wx/msw/dib.h"
-#endif
+#include "wx/msw/missing.h" // IDC_HAND
 
-#if wxUSE_RESOURCE_LOADING_IN_MSW
-    #include "wx/msw/curico.h"
-    #include "wx/msw/curicop.h"
-#endif
+// define functions missing in MicroWin
+#ifdef __WXMICROWIN__
+    static inline void DestroyCursor(HCURSOR) { }
+    static inline void SetCursor(HCURSOR) { }
+#endif // __WXMICROWIN__
+
+// ----------------------------------------------------------------------------
+// private classes
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxCursorRefData : public wxGDIImageRefData
+{
+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);
+
+    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, wxCursorBase)
+IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxGDIObject)
 
 // ----------------------------------------------------------------------------
 // globals
@@ -73,7 +100,7 @@ public:
     {
         gs_globalCursor = new wxCursor;
 
-        return TRUE;
+        return true;
     }
 
     virtual void OnExit()
@@ -91,19 +118,42 @@ public:
 // wxCursorRefData
 // ----------------------------------------------------------------------------
 
-wxCursorRefData::wxCursorRefData()
+wxSize wxCursorRefData::ms_sizeStd;
+
+wxCoord wxCursorRefData::GetStandardWidth()
+{
+    if ( !ms_sizeStd.x )
+        ms_sizeStd.x = wxSystemSettings::GetMetric(wxSYS_CURSOR_X);
+
+    return ms_sizeStd.x;
+}
+
+wxCoord wxCursorRefData::GetStandardHeight()
 {
-  m_width = 32;
-  m_height = 32;
+    if ( !ms_sizeStd.y )
+        ms_sizeStd.y = wxSystemSettings::GetMetric(wxSYS_CURSOR_Y);
 
-  m_destroyCursor = FALSE;
+    return ms_sizeStd.y;
+}
+
+wxCursorRefData::wxCursorRefData(HCURSOR hcursor, bool destroy)
+{
+    m_hCursor = (WXHCURSOR)hcursor;
+
+    if ( m_hCursor )
+    {
+        m_width = GetStandardWidth();
+        m_height = GetStandardHeight();
+    }
+
+    m_destroyCursor = destroy;
 }
 
 void wxCursorRefData::Free()
 {
     if ( m_hCursor )
     {
-#ifndef __WXMICROWIN__
+#ifndef __WXWINCE__
         if ( m_destroyCursor )
             ::DestroyCursor((HCURSOR)m_hCursor);
 #endif
@@ -120,6 +170,55 @@ wxCursor::wxCursor()
 {
 }
 
+#if wxUSE_IMAGE
+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();
+
+    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 < image_w &&
+                  hotSpotY >= 0 && hotSpotY < image_h,
+                  _T("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 );
+
+    if ( !hcursor )
+    {
+        wxLogWarning(_("Failed to create cursor."));
+        return;
+    }
+
+    m_refData = new wxCursorRefData(hcursor, true /* delete it later */);
+}
+#endif // wxUSE_IMAGE
+
 wxCursor::wxCursor(const char WXUNUSED(bits)[],
                    int WXUNUSED(width),
                    int WXUNUSED(height),
@@ -128,205 +227,166 @@ wxCursor::wxCursor(const char WXUNUSED(bits)[],
 {
 }
 
-wxCursor::wxCursor(const wxString& cursor_file,
-                   long flags,
-                   int hotSpotX, int hotSpotY)
-{
+// MicroWin doesn't have support needed for the other ctors
 #ifdef __WXMICROWIN__
-    m_refData = NULL;
-#else
-    wxCursorRefData *refData = new wxCursorRefData;
-    m_refData = refData;
 
-    refData->m_destroyCursor = FALSE;
+wxCursor::wxCursor(const wxString& WXUNUSED(filename),
+                   long WXUNUSED(kind),
+                   int WXUNUSED(hotSpotX),
+                   int WXUNUSED(hotSpotY))
+{
+}
 
-    if (flags == wxBITMAP_TYPE_CUR_RESOURCE)
-    {
-#ifdef __WIN95__
-        refData->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), cursor_file, IMAGE_CURSOR, 0, 0, 0);
-#else
-        refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), cursor_file);
-#endif
-    }
-    else if (flags == wxBITMAP_TYPE_CUR)
-    {
-#ifdef __WIN95__
-        refData->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), cursor_file, IMAGE_CURSOR, 0, 0, LR_LOADFROMFILE);
-#else
-#if wxUSE_RESOURCE_LOADING_IN_MSW
-        refData->m_hCursor = (WXHCURSOR) ReadCursorFile(WXSTRINGCAST cursor_file, wxGetInstance(), &refData->m_width, &refData->m_height);
-        refData->m_destroyCursor = TRUE;
-#endif
-#endif
-    }
-    else if (flags == wxBITMAP_TYPE_ICO)
+wxCursor::wxCursor(int WXUNUSED(cursor_type))
+{
+}
+
+#else // !__WXMICROWIN__
+
+wxCursor::wxCursor(const wxString& filename,
+                   long kind,
+                   int hotSpotX,
+                   int hotSpotY)
+{
+    HCURSOR hcursor;
+    switch ( kind )
     {
-#if wxUSE_RESOURCE_LOADING_IN_MSW
-        refData->m_hCursor = (WXHCURSOR) IconToCursor(WXSTRINGCAST cursor_file, wxGetInstance(), hotSpotX, hotSpotY, &refData->m_width, &refData->m_height);
-        refData->m_destroyCursor = TRUE;
+        case wxBITMAP_TYPE_CUR_RESOURCE:
+            hcursor = ::LoadCursor(wxGetInstance(), filename.fn_str());
+            break;
+
+#ifndef __WXWINCE__
+        case wxBITMAP_TYPE_CUR:
+            hcursor = ::LoadCursorFromFile(filename.fn_str());
+            break;
 #endif
+
+        case wxBITMAP_TYPE_ICO:
+            hcursor = wxBitmapToHCURSOR
+                      (
+                       wxIcon(filename, wxBITMAP_TYPE_ICO),
+                       hotSpotX,
+                       hotSpotY
+                      );
+            break;
+
+        case wxBITMAP_TYPE_BMP:
+            hcursor = wxBitmapToHCURSOR
+                      (
+                       wxBitmap(filename, wxBITMAP_TYPE_BMP),
+                       hotSpotX,
+                       hotSpotY
+                      );
+            break;
+
+        default:
+            wxFAIL_MSG( _T("unknown cursor resource type") );
+
+            hcursor = NULL;
     }
-    else if (flags == wxBITMAP_TYPE_BMP)
+
+    if ( hcursor )
     {
-#if wxUSE_RESOURCE_LOADING_IN_MSW
-        HBITMAP hBitmap = 0;
-        HPALETTE hPalette = 0;
-        bool success = wxReadDIB(WXSTRINGCAST cursor_file, &hBitmap, &hPalette) != 0;
-        if (!success)
-            return;
-        if (hPalette)
-            DeleteObject(hPalette);
-        POINT pnt;
-        pnt.x = hotSpotX;
-        pnt.y = hotSpotY;
-        refData->m_hCursor = (WXHCURSOR) MakeCursorFromBitmap(wxGetInstance(), hBitmap, &pnt);
-        refData->m_destroyCursor = TRUE;
-        DeleteObject(hBitmap);
-#endif
+        m_refData = new wxCursorRefData(hcursor, true /* delete it later */);
     }
-
-#if WXWIN_COMPATIBILITY_2
-    refData->SetOk();
-#endif // WXWIN_COMPATIBILITY_2
-
-#endif
 }
 
 // Cursors by stock number
-wxCursor::wxCursor(int cursor_type)
+wxCursor::wxCursor(int idCursor)
 {
-#ifdef __WXMICROWIN__
-    m_refData = NULL;
-#else
-  wxCursorRefData *refData = new wxCursorRefData;
-  m_refData = refData;
-
-  switch (cursor_type)
-  {
-    case wxCURSOR_ARROWWAIT:
-#ifndef __WIN16__
-      refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_APPSTARTING);
-      break;
-#endif
-    case wxCURSOR_WAIT:
-      refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_WAIT);
-      break;
-    case wxCURSOR_IBEAM:
-      refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_IBEAM);
-      break;
-    case wxCURSOR_CROSS:
-      refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_CROSS);
-      break;
-    case wxCURSOR_SIZENWSE:
-      refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENWSE);
-      break;
-    case wxCURSOR_SIZENESW:
-      refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENESW);
-      break;
-    case wxCURSOR_SIZEWE:
-      refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZEWE);
-      break;
-    case wxCURSOR_SIZENS:
-      refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_SIZENS);
-      break;
-    case wxCURSOR_CHAR:
-    {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
-      break;
-    }
-    case wxCURSOR_HAND:
-    {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_HAND"));
-      break;
-    }
-    case wxCURSOR_BULLSEYE:
-    {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_BULLSEYE"));
-      break;
-    }
-    case wxCURSOR_PENCIL:
-    {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PENCIL"));
-      break;
-    }
-    case wxCURSOR_MAGNIFIER:
-    {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_MAGNIFIER"));
-      break;
-    }
-    case wxCURSOR_NO_ENTRY:
-    {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_NO_ENTRY"));
-      break;
-    }
-    case wxCURSOR_LEFT_BUTTON:
-    {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
-      break;
-    }
-    case wxCURSOR_RIGHT_BUTTON:
-    {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
-      break;
-    }
-    case wxCURSOR_MIDDLE_BUTTON:
-    {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
-      break;
-    }
-    case wxCURSOR_SIZING:
+    // all wxWidgets standard cursors
+    static const struct StdCursor
     {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_SIZING"));
-      break;
-    }
-    case wxCURSOR_WATCH:
-    {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_WATCH"));
-      break;
-    }
-    case wxCURSOR_SPRAYCAN:
-    {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_ROLLER"));
-      break;
-    }
-    case wxCURSOR_PAINT_BRUSH:
-    {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PBRUSH"));
-      break;
-    }
-    case wxCURSOR_POINT_LEFT:
+        // is this a standard Windows cursor?
+        bool isStd;
+
+        // the cursor name or id
+        LPCTSTR name;
+    } stdCursors[] =
     {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PLEFT"));
-      break;
-    }
-    case wxCURSOR_POINT_RIGHT:
+        {  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
+
+        // Displays as an I-beam on XP, so use a cursor file
+//        {  true, IDC_CROSS                   }, // WXCURSOR_CROSS
+        {  false, _T("WXCURSOR_CROSS")       }, // WXCURSOR_CROSS
+
+        // See special handling below for wxCURSOR_HAND
+//        { 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
+        {  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
+        {  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_PBRUSH")       }, // 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];
+    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)
     {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_PRIGHT"));
-      break;
+        hcursor = ::LoadCursor(wxGetInstance(), _T("WXCURSOR_HAND"));
+        deleteLater = true;
     }
-    case wxCURSOR_QUESTION_ARROW:
+
+    if ( !hcursor )
     {
-//      refData->m_hCursor = (WXHCURSOR) LoadImage(wxGetInstance(), wxT("wxCURSOR_QARROW"), IMAGE_CURSOR, 16, 16, LR_MONOCHROME);
-      refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_QARROW"));
-      break;
+        wxLogLastError(_T("LoadCursor"));
     }
-    case wxCURSOR_BLANK:
+    else
     {
-      refData->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), wxT("wxCURSOR_BLANK"));
-      break;
+        m_refData = new wxCursorRefData(hcursor, deleteLater);
     }
-    default:
-    case wxCURSOR_ARROW:
-      refData->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
-      break;
-  }
-#endif
 }
 
+#endif // __WXMICROWIN__/!__WXMICROWIN__
+
 wxCursor::~wxCursor()
 {
 }
 
+// ----------------------------------------------------------------------------
+// other wxCursor functions
+// ----------------------------------------------------------------------------
+
+wxGDIImageRefData *wxCursor::CreateData() const
+{
+    return new wxCursorRefData;
+}
+
 // ----------------------------------------------------------------------------
 // Global cursor setting
 // ----------------------------------------------------------------------------
@@ -340,13 +400,9 @@ void wxSetCursor(const wxCursor& cursor)
 {
     if ( cursor.Ok() )
     {
-#ifndef __WXMICROWIN__
         ::SetCursor(GetHcursorOf(cursor));
-#endif
 
         if ( gs_globalCursor )
             *gs_globalCursor = cursor;
     }
 }
-
-