/////////////////////////////////////////////////////////////////////////////
-// 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
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "cursor.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
-#include <stdio.h>
-#include "wx/setup.h"
-#include "wx/list.h"
-#include "wx/utils.h"
-#include "wx/app.h"
#include "wx/cursor.h"
-#include "wx/icon.h"
+
+#ifndef WX_PRECOMP
+ #include "wx/utils.h"
+ #include "wx/app.h"
+ #include "wx/bitmap.h"
+ #include "wx/icon.h"
+ #include "wx/settings.h"
+ #include "wx/intl.h"
+ #include "wx/image.h"
+ #include "wx/module.h"
#endif
#include "wx/msw/private.h"
-#include "wx/msw/dib.h"
+#include "wx/msw/missing.h" // IDC_HAND
-#include "assert.h"
+// define functions missing in MicroWin
+#ifdef __WXMICROWIN__
+ static inline void DestroyCursor(HCURSOR) { }
+ static inline void SetCursor(HCURSOR) { }
+#endif // __WXMICROWIN__
-#if wxUSE_RESOURCE_LOADING_IN_MSW
-#include "wx/msw/curico.h"
-#include "wx/msw/curicop.h"
-#endif
+// ----------------------------------------------------------------------------
+// private classes
+// ----------------------------------------------------------------------------
-#if !USE_SHARED_LIBRARIES
-IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxBitmap)
-#endif
+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
+// ----------------------------------------------------------------------------
-wxCursorRefData::wxCursorRefData(void)
+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
{
- m_width = 32; m_height = 32;
- m_hCursor = 0 ;
- m_destroyCursor = FALSE;
-}
+public:
+ virtual bool OnInit()
+ {
+ gs_globalCursor = new wxCursor;
+
+ return true;
+ }
+
+ virtual void OnExit()
+ {
+ wxDELETE(gs_globalCursor);
+ }
+};
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxCursorRefData
+// ----------------------------------------------------------------------------
+
+wxSize wxCursorRefData::ms_sizeStd;
-wxCursorRefData::~wxCursorRefData(void)
+wxCoord wxCursorRefData::GetStandardWidth()
{
- if ( m_hCursor && m_destroyCursor)
-#ifdef __WXWINE__
- ::DestroyCursor((HCURSOR) m_hCursor);
-#else
- ::DestroyCursor((HICON) m_hCursor);
-#endif
+ if ( !ms_sizeStd.x )
+ ms_sizeStd.x = wxSystemSettings::GetMetric(wxSYS_CURSOR_X);
+
+ return ms_sizeStd.x;
}
-// Cursors
-wxCursor::wxCursor(void)
+wxCoord wxCursorRefData::GetStandardHeight()
{
+ if ( !ms_sizeStd.y )
+ ms_sizeStd.y = wxSystemSettings::GetMetric(wxSYS_CURSOR_Y);
+
+ return ms_sizeStd.y;
}
-wxCursor::wxCursor(const char WXUNUSED(bits)[], int WXUNUSED(width), int WXUNUSED(height),
- int WXUNUSED(hotSpotX), int WXUNUSED(hotSpotY), const char WXUNUSED(maskBits)[])
+wxCursorRefData::wxCursorRefData(HCURSOR hcursor, bool destroy)
{
+ m_hCursor = (WXHCURSOR)hcursor;
+
+ if ( m_hCursor )
+ {
+ m_width = GetStandardWidth();
+ m_height = GetStandardHeight();
+ }
+
+ m_destroyCursor = destroy;
}
-wxCursor::wxCursor(const wxString& cursor_file, long flags, int hotSpotX, int hotSpotY)
+void wxCursorRefData::Free()
{
- m_refData = new wxCursorRefData;
-
- 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(WXSTRINGCAST 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(WXSTRINGCAST 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(WXSTRINGCAST 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;
+ if ( m_hCursor )
+ {
+#ifndef __WXWINCE__
+ if ( m_destroyCursor )
+ ::DestroyCursor((HCURSOR)m_hCursor);
#endif
- }
+
+ m_hCursor = 0;
+ }
}
-// Cursors by stock number
-wxCursor::wxCursor(int cursor_type)
+// ----------------------------------------------------------------------------
+// Cursors
+// ----------------------------------------------------------------------------
+
+wxCursor::wxCursor()
{
- m_refData = new wxCursorRefData;
-
- 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(), _T("wxCURSOR_HAND"));
- break;
- }
- case wxCURSOR_BULLSEYE:
- {
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_BULLSEYE"));
- break;
- }
- case wxCURSOR_PENCIL:
- {
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_PENCIL"));
- break;
- }
- case wxCURSOR_MAGNIFIER:
- {
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_MAGNIFIER"));
- break;
- }
- case wxCURSOR_NO_ENTRY:
- {
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_NO_ENTRY"));
- break;
- }
- case wxCURSOR_LEFT_BUTTON:
- {
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
- break;
- }
- case wxCURSOR_RIGHT_BUTTON:
+}
+
+#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,
+ 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))
{
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
- break;
+ 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);
}
- case wxCURSOR_MIDDLE_BUTTON:
+ else if ((w != image_w) || (h != image_h))
{
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor((HINSTANCE) NULL, IDC_ARROW);
- break;
+ hotSpotX = int(hotSpotX * double(w) / double(image_w));
+ hotSpotY = int(hotSpotY * double(h) / double(image_h));
+
+ imageSized = image.Scale(w, h);
}
- case wxCURSOR_SIZING:
+
+ HCURSOR hcursor = wxBitmapToHCURSOR( wxBitmap(imageSized),
+ hotSpotX, hotSpotY );
+
+ if ( !hcursor )
{
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_SIZING"));
- break;
+ wxLogWarning(_("Failed to create cursor."));
+ return;
}
- case wxCURSOR_WATCH:
+
+ m_refData = new wxCursorRefData(hcursor, true /* delete it later */);
+}
+#endif // wxUSE_IMAGE
+
+// MicroWin doesn't have support needed for the other ctors
+#ifdef __WXMICROWIN__
+
+wxCursor::InitFromStock(wxStockCursor WXUNUSED(cursor_type))
+{
+}
+
+#else // !__WXMICROWIN__
+
+wxCursor::wxCursor(const wxString& filename,
+ wxBitmapType kind,
+ int hotSpotX,
+ int hotSpotY)
+{
+ HCURSOR hcursor;
+ switch ( kind )
{
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_WATCH"));
- break;
+ case wxBITMAP_TYPE_CUR_RESOURCE:
+ hcursor = ::LoadCursor(wxGetInstance(), filename.t_str());
+ break;
+
+#ifndef __WXWINCE__
+ case wxBITMAP_TYPE_CUR:
+ hcursor = ::LoadCursorFromFile(filename.t_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:
+ wxLogError( wxT("unknown cursor resource type '%d'"), kind );
+
+ hcursor = NULL;
}
- case wxCURSOR_SPRAYCAN:
+
+ if ( hcursor )
{
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_ROLLER"));
- break;
+ m_refData = new wxCursorRefData(hcursor, true /* delete it later */);
}
- case wxCURSOR_PAINT_BRUSH:
+}
+
+// Cursors by stock number
+void wxCursor::InitFromStock(wxStockCursor idCursor)
+{
+ // all wxWidgets standard cursors
+ static const struct StdCursor
{
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_PBRUSH"));
- break;
- }
- case wxCURSOR_POINT_LEFT:
+ // is this a standard Windows cursor?
+ bool isStd;
+
+ // the cursor name or id
+ LPCTSTR name;
+ } stdCursors[] =
{
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_PLEFT"));
- break;
- }
- case wxCURSOR_POINT_RIGHT:
+ { true, NULL }, // wxCURSOR_NONE
+ { true, IDC_ARROW }, // wxCURSOR_ARROW
+ { false, wxT("WXCURSOR_RIGHT_ARROW") }, // wxCURSOR_RIGHT_ARROW
+ { false, wxT("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, wxT("WXCURSOR_CROSS") }, // WXCURSOR_CROSS
+
+ // See special handling below for wxCURSOR_HAND
+// { false, wxT("WXCURSOR_HAND") }, // wxCURSOR_HAND
+ { true, IDC_HAND }, // wxCURSOR_HAND
+
+ { true, IDC_IBEAM }, // WXCURSOR_IBEAM
+ { true, IDC_ARROW }, // WXCURSOR_LEFT_BUTTON
+ { false, wxT("WXCURSOR_MAGNIFIER") }, // wxCURSOR_MAGNIFIER
+ { true, IDC_ARROW }, // WXCURSOR_MIDDLE_BUTTON
+ { true, IDC_NO }, // WXCURSOR_NO_ENTRY
+ { 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
+ { true, IDC_SIZENS }, // WXCURSOR_SIZENS
+ { true, IDC_SIZENWSE }, // WXCURSOR_SIZENWSE
+ { true, IDC_SIZEWE }, // WXCURSOR_SIZEWE
+ { true, IDC_SIZEALL }, // WXCURSOR_SIZING
+ { false, wxT("WXCURSOR_PBRUSH") }, // wxCURSOR_SPRAYCAN
+ { true, IDC_WAIT }, // WXCURSOR_WAIT
+ { true, IDC_WAIT }, // WXCURSOR_WATCH
+ { false, wxT("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),
+ 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)
{
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_PRIGHT"));
- break;
+ hcursor = ::LoadCursor(wxGetInstance(), wxT("WXCURSOR_HAND"));
+ deleteLater = true;
}
- case wxCURSOR_QUESTION_ARROW:
+
+ if ( !hcursor )
{
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_QARROW"));
- break;
+ 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"));
}
- case wxCURSOR_BLANK:
+ else
{
- M_CURSORDATA->m_hCursor = (WXHCURSOR) LoadCursor(wxGetInstance(), _T("wxCURSOR_BLANK"));
- break;
+ m_refData = new wxCursorRefData(hcursor, deleteLater);
}
- 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
+// ----------------------------------------------------------------------------
+
+wxGDIImageRefData *wxCursor::CreateData() 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;
+ return new wxCursorRefData;
}
-void wxCursor::SetHCURSOR(WXHCURSOR cursor)
-{
- if ( !M_CURSORDATA )
- m_refData = new wxCursorRefData;
+// ----------------------------------------------------------------------------
+// Global cursor setting
+// ----------------------------------------------------------------------------
- M_CURSORDATA->m_hCursor = cursor;
+const wxCursor *wxGetGlobalCursor()
+{
+ return gs_globalCursor;
}
-// Global cursor setting
void wxSetCursor(const wxCursor& cursor)
{
- extern wxCursor *g_globalCursor;
-
- if ( cursor.Ok() && cursor.GetHCURSOR() )
+ if ( cursor.IsOk() )
{
- ::SetCursor((HCURSOR) cursor.GetHCURSOR());
+ ::SetCursor(GetHcursorOf(cursor));
- if ( g_globalCursor )
- (*g_globalCursor) = cursor;
+ if ( gs_globalCursor )
+ *gs_globalCursor = cursor;
}
}
-
-
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