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wxWidgets/include/wx/msw/private.h

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/////////////////////////////////////////////////////////////////////////////
// Name: private.h
// Purpose: Private declarations: as this header is only included by
// wxWindows itself, it may contain identifiers which don't start
// with "wx".
// Author: Julian Smart
// Modified by:
// Created: 01/02/97
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_PRIVATE_H_
#define _WX_PRIVATE_H_
#include "wx/msw/wrapwin.h"
#if defined (__WXWINCE__)
#include <wingdi.h> // RGB, COLORREF
#define ERRFALSE(x)
#include <winuser.h> // Global Namespaces ::GetKeyState, ::GetWindowRect
#include "wx/msw/winundef.h"
#endif
#ifdef __WXMICROWIN__
// Extra prototypes and symbols not defined by MicroWindows
#include "wx/msw/microwin.h"
#endif
// Include fixes for MSLU:
#include "wx/msw/mslu.h"
#include "wx/log.h"
class WXDLLEXPORT wxFont;
class WXDLLEXPORT wxWindow;
// ---------------------------------------------------------------------------
// private constants
// ---------------------------------------------------------------------------
// Conversion
static const double METRIC_CONVERSION_CONSTANT = 0.0393700787;
// Scaling factors for various unit conversions
static const double mm2inches = (METRIC_CONVERSION_CONSTANT);
static const double inches2mm = (1/METRIC_CONVERSION_CONSTANT);
static const double mm2twips = (METRIC_CONVERSION_CONSTANT*1440);
static const double twips2mm = (1/(METRIC_CONVERSION_CONSTANT*1440));
static const double mm2pt = (METRIC_CONVERSION_CONSTANT*72);
static const double pt2mm = (1/(METRIC_CONVERSION_CONSTANT*72));
// ---------------------------------------------------------------------------
// standard icons from the resources
// ---------------------------------------------------------------------------
#if wxUSE_GUI
WXDLLEXPORT_DATA(extern HICON) wxSTD_FRAME_ICON;
WXDLLEXPORT_DATA(extern HICON) wxSTD_MDIPARENTFRAME_ICON;
WXDLLEXPORT_DATA(extern HICON) wxSTD_MDICHILDFRAME_ICON;
WXDLLEXPORT_DATA(extern HICON) wxDEFAULT_FRAME_ICON;
WXDLLEXPORT_DATA(extern HICON) wxDEFAULT_MDIPARENTFRAME_ICON;
WXDLLEXPORT_DATA(extern HICON) wxDEFAULT_MDICHILDFRAME_ICON;
WXDLLEXPORT_DATA(extern HFONT) wxSTATUS_LINE_FONT;
#endif // wxUSE_GUI
// ---------------------------------------------------------------------------
// define things missing from some compilers' headers
// ---------------------------------------------------------------------------
#if defined(__WXWINCE__) || (defined(__GNUWIN32__) && !wxUSE_NORLANDER_HEADERS)
#ifndef ZeroMemory
inline void ZeroMemory(void *buf, size_t len) { memset(buf, 0, len); }
#endif
#endif // old mingw32
// this defines a CASTWNDPROC macro which casts a pointer to the type of a
// window proc
#if defined(STRICT) || defined(__GNUC__)
typedef WNDPROC WndProcCast;
#else
typedef FARPROC WndProcCast;
#endif
#define CASTWNDPROC (WndProcCast)
// ---------------------------------------------------------------------------
// some stuff for old Windows versions (FIXME: what does it do here??)
// ---------------------------------------------------------------------------
#if !defined(APIENTRY) // NT defines APIENTRY, 3.x not
#define APIENTRY FAR PASCAL
#endif
#ifdef __WIN32__
#define _EXPORT
#else
#define _EXPORT _export
#endif
#ifndef __WIN32__
typedef signed short int SHORT;
#endif
#if !defined(__WIN32__) // 3.x uses FARPROC for dialogs
#ifndef STRICT
#define DLGPROC FARPROC
#endif
#endif
#if wxUSE_PENWIN
WXDLLEXPORT void wxRegisterPenWin();
WXDLLEXPORT void wxCleanUpPenWin();
WXDLLEXPORT void wxEnablePenAppHooks (bool hook);
#endif // wxUSE_PENWIN
#if wxUSE_ITSY_BITSY
#define IBS_HORZCAPTION 0x4000L
#define IBS_VERTCAPTION 0x8000L
UINT WINAPI ibGetCaptionSize( HWND hWnd ) ;
UINT WINAPI ibSetCaptionSize( HWND hWnd, UINT nSize ) ;
LRESULT WINAPI ibDefWindowProc( HWND hWnd, UINT uiMsg, WPARAM wParam, LPARAM lParam ) ;
VOID WINAPI ibAdjustWindowRect( HWND hWnd, LPRECT lprc ) ;
#endif // wxUSE_ITSY_BITSY
#if wxUSE_CTL3D
#include "wx/msw/ctl3d/ctl3d.h"
#endif // wxUSE_CTL3D
/*
* Decide what window classes we're going to use
* for this combination of CTl3D/FAFA settings
*/
#define STATIC_CLASS wxT("STATIC")
#define STATIC_FLAGS (SS_LEFT|WS_CHILD|WS_VISIBLE)
#define CHECK_CLASS wxT("BUTTON")
#define CHECK_FLAGS (BS_AUTOCHECKBOX|WS_TABSTOP|WS_CHILD)
#define CHECK_IS_FAFA FALSE
#define RADIO_CLASS wxT("BUTTON")
#define RADIO_FLAGS (BS_AUTORADIOBUTTON|WS_CHILD|WS_VISIBLE)
#define RADIO_SIZE 20
#define RADIO_IS_FAFA FALSE
#define PURE_WINDOWS
#define GROUP_CLASS wxT("BUTTON")
#define GROUP_FLAGS (BS_GROUPBOX|WS_CHILD|WS_VISIBLE)
/*
#define BITCHECK_FLAGS (FB_BITMAP|FC_BUTTONDRAW|FC_DEFAULT|WS_VISIBLE)
#define BITRADIO_FLAGS (FC_BUTTONDRAW|FB_BITMAP|FC_RADIO|WS_CHILD|WS_VISIBLE)
*/
// ---------------------------------------------------------------------------
// misc macros
// ---------------------------------------------------------------------------
#define MEANING_CHARACTER '0'
#define DEFAULT_ITEM_WIDTH 100
#define DEFAULT_ITEM_HEIGHT 80
// Scale font to get edit control height
//#define EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy) (3*(cy)/2)
#define EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy) (cy+8)
// Generic subclass proc, for panel item moving/sizing and intercept
// EDIT control VK_RETURN messages
extern LONG APIENTRY _EXPORT
wxSubclassedGenericControlProc(WXHWND hWnd, WXUINT message, WXWPARAM wParam, WXLPARAM lParam);
// ---------------------------------------------------------------------------
// useful macros and functions
// ---------------------------------------------------------------------------
// a wrapper macro for ZeroMemory()
#if defined(__WIN32__) && !defined(__WXMICROWIN__)
#define wxZeroMemory(obj) ::ZeroMemory(&obj, sizeof(obj))
#else
#define wxZeroMemory(obj) memset((void*) & obj, 0, sizeof(obj))
#endif
#if wxUSE_GUI
#include <wx/gdicmn.h>
#include <wx/colour.h>
// make conversion from wxColour and COLORREF a bit less painful
inline COLORREF wxColourToRGB(const wxColour& c)
{
return RGB(c.Red(), c.Green(), c.Blue());
}
inline COLORREF wxColourToPalRGB(const wxColour& c)
{
return PALETTERGB(c.Red(), c.Green(), c.Blue());
}
inline wxColour wxRGBToColour(COLORREF rgb)
{
return wxColour(GetRValue(rgb), GetGValue(rgb), GetBValue(rgb));
}
inline void wxRGBToColour(wxColour& c, COLORREF rgb)
{
c.Set(GetRValue(rgb), GetGValue(rgb), GetBValue(rgb));
}
// get the standard colour map for some standard colours - see comment in this
// function to understand why is it needed and when should it be used
//
// it returns a wxCOLORMAP (can't use COLORMAP itself here as comctl32.dll
// might be not included/available) array of size wxSTD_COLOUR_MAX
//
// NB: if you change these colours, update wxBITMAP_STD_COLOURS in the
// resources as well: it must have the same number of pixels!
enum wxSTD_COLOUR
{
wxSTD_COL_BTNTEXT,
wxSTD_COL_BTNSHADOW,
wxSTD_COL_BTNFACE,
wxSTD_COL_BTNHIGHLIGHT,
wxSTD_COL_MAX,
};
struct WXDLLEXPORT wxCOLORMAP
{
COLORREF from, to;
};
// this function is implemented in src/msw/window.cpp
extern wxCOLORMAP *wxGetStdColourMap();
// copy Windows RECT to our wxRect
inline void wxCopyRECTToRect(const RECT& r, wxRect& rect)
{
rect.y = r.top;
rect.x = r.left;
rect.width = r.right - r.left;
rect.height = r.bottom - r.top;
}
// translations between HIMETRIC units (which OLE likes) and pixels (which are
// liked by all the others) - implemented in msw/utilsexc.cpp
extern void HIMETRICToPixel(LONG *x, LONG *y);
extern void PixelToHIMETRIC(LONG *x, LONG *y);
// Windows convention of the mask is opposed to the wxWindows one, so we need
// to invert the mask each time we pass one/get one to/from Windows
extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w = 0, int h = 0);
// Creates an icon or cursor depending from a bitmap
//
// The bitmap must be valid and it should have a mask. If it doesn't, a default
// mask is created using light grey as the transparent colour.
extern HICON wxBitmapToHICON(const wxBitmap& bmp);
// Same requirments as above apply and the bitmap must also have the correct
// size.
extern
HCURSOR wxBitmapToHCURSOR(const wxBitmap& bmp, int hotSpotX, int hotSpotY);
// get (x, y) from DWORD - notice that HI/LOWORD can *not* be used because they
// will fail on system with multiple monitors where the coords may be negative
//
// these macros are standard now (Win98) but some older headers don't have them
#ifndef GET_X_LPARAM
#define GET_X_LPARAM(lp) ((int)(short)LOWORD(lp))
#define GET_Y_LPARAM(lp) ((int)(short)HIWORD(lp))
#endif // GET_X_LPARAM
// get the current state of SHIFT/CTRL keys
inline bool wxIsShiftDown()
{
// return (::GetKeyState(VK_SHIFT) & 0x100) != 0;
// Returns different negative values on WinME and WinNT,
// so simply test for negative value.
return ::GetKeyState(VK_SHIFT) < 0;
}
inline bool wxIsCtrlDown()
{
// return (::GetKeyState(VK_CONTROL) & 0x100) != 0;
// Returns different negative values on WinME and WinNT,
// so simply test for negative value.
return ::GetKeyState(VK_CONTROL) < 0;
}
// wrapper around GetWindowRect() and GetClientRect() APIs doing error checking
// for Win32
inline RECT wxGetWindowRect(HWND hwnd)
{
RECT rect;
if ( !::GetWindowRect(hwnd, &rect) )
{
wxLogLastError(_T("GetWindowRect"));
}
return rect;
}
inline RECT wxGetClientRect(HWND hwnd)
{
RECT rect;
if ( !::GetClientRect(hwnd, &rect) )
{
wxLogLastError(_T("GetClientRect"));
}
return rect;
}
// ---------------------------------------------------------------------------
// small helper classes
// ---------------------------------------------------------------------------
// a template to make initializing Windows styructs less painful: it zeroes all
// the struct fields and also sets cbSize member to the correct value (and so
// can be only used with structures which have this member...)
template <class T>
struct WinStruct : public T
{
WinStruct()
{
::ZeroMemory(this, sizeof(T));
cbSize = sizeof(T);
}
};
// create an instance of this class and use it as the HDC for screen, will
// automatically release the DC going out of scope
class ScreenHDC
{
public:
ScreenHDC() { m_hdc = ::GetDC(NULL); }
~ScreenHDC() { ::ReleaseDC(NULL, m_hdc); }
operator HDC() const { return m_hdc; }
private:
HDC m_hdc;
DECLARE_NO_COPY_CLASS(ScreenHDC)
};
// the same as ScreenHDC but for memory DCs: creates the HDC compatible with
// the given one (screen by default) in ctor and destroys it in dtor
class MemoryHDC
{
public:
MemoryHDC(HDC hdc = 0) { m_hdc = ::CreateCompatibleDC(hdc); }
~MemoryHDC() { ::DeleteDC(m_hdc); }
operator HDC() const { return m_hdc; }
private:
HDC m_hdc;
DECLARE_NO_COPY_CLASS(MemoryHDC)
};
// a class which selects a GDI object into a DC in its ctor and deselects in
// dtor
class SelectInHDC
{
public:
SelectInHDC(HDC hdc, HGDIOBJ hgdiobj) : m_hdc(hdc)
{ m_hgdiobj = ::SelectObject(hdc, hgdiobj); }
~SelectInHDC() { ::SelectObject(m_hdc, m_hgdiobj); }
// return true if the object was successfully selected
operator bool() const { return m_hgdiobj != 0; }
private:
HDC m_hdc;
HGDIOBJ m_hgdiobj;
DECLARE_NO_COPY_CLASS(SelectInHDC)
};
#ifndef __WXWINCE__
// when working with global pointers (which is unfortunately still necessary
// sometimes, e.g. for clipboard) it is important to unlock them exactly as
// many times as we lock them which just asks for using a "smart lock" class
class GlobalPtr
{
public:
GlobalPtr(HGLOBAL hGlobal) : m_hGlobal(hGlobal)
{
m_ptr = ::GlobalLock(hGlobal);
if ( !m_ptr )
{
wxLogLastError(_T("GlobalLock"));
}
}
~GlobalPtr()
{
if ( !::GlobalUnlock(m_hGlobal) )
{
#ifdef __WXDEBUG__
// this might happen simply because the block became unlocked
DWORD dwLastError = ::GetLastError();
if ( dwLastError != NO_ERROR )
{
wxLogApiError(_T("GlobalUnlock"), dwLastError);
}
#endif // __WXDEBUG__
}
}
operator void *() const { return m_ptr; }
private:
HGLOBAL m_hGlobal;
void *m_ptr;
DECLARE_NO_COPY_CLASS(GlobalPtr)
};
#endif
// ---------------------------------------------------------------------------
// macros to make casting between WXFOO and FOO a bit easier: the GetFoo()
// returns Foo cast to the Windows type for oruselves, while GetFooOf() takes
// an argument which should be a pointer or reference to the object of the
// corresponding class (this depends on the macro)
// ---------------------------------------------------------------------------
#define GetHwnd() ((HWND)GetHWND())
#define GetHwndOf(win) ((HWND)((win)->GetHWND()))
// old name
#define GetWinHwnd GetHwndOf
#define GetHdc() ((HDC)GetHDC())
#define GetHdcOf(dc) ((HDC)(dc).GetHDC())
#define GetHbitmap() ((HBITMAP)GetHBITMAP())
#define GetHbitmapOf(bmp) ((HBITMAP)(bmp).GetHBITMAP())
#define GetHicon() ((HICON)GetHICON())
#define GetHiconOf(icon) ((HICON)(icon).GetHICON())
#define GetHaccel() ((HACCEL)GetHACCEL())
#define GetHaccelOf(table) ((HACCEL)((table).GetHACCEL()))
#define GetHbrush() ((HPEN)GetResourceHandle())
#define GetHbrushOf(brush) ((HPEN)(brush).GetResourceHandle())
#define GetHmenu() ((HMENU)GetHMenu())
#define GetHmenuOf(menu) ((HMENU)menu->GetHMenu())
#define GetHcursor() ((HCURSOR)GetHCURSOR())
#define GetHcursorOf(cursor) ((HCURSOR)(cursor).GetHCURSOR())
#define GetHfont() ((HFONT)GetHFONT())
#define GetHfontOf(font) ((HFONT)(font).GetHFONT())
#define GetHpalette() ((HPALETTE)GetHPALETTE())
#define GetHpaletteOf(pal) ((HPALETTE)(pal).GetHPALETTE())
#define GetHpen() ((HPEN)GetResourceHandle())
#define GetHpenOf(pen) ((HPEN)(pen).GetResourceHandle())
#define GetHrgn() ((HRGN)GetHRGN())
#define GetHrgnOf(rgn) ((HRGN)(rgn).GetHRGN())
#endif // wxUSE_GUI
// ---------------------------------------------------------------------------
// global data
// ---------------------------------------------------------------------------
WXDLLIMPEXP_DATA_BASE(extern HINSTANCE) wxhInstance;
// ---------------------------------------------------------------------------
// global functions
// ---------------------------------------------------------------------------
extern "C"
{
WXDLLIMPEXP_BASE HINSTANCE wxGetInstance();
}
WXDLLIMPEXP_BASE void wxSetInstance(HINSTANCE hInst);
#if wxUSE_GUI
// cursor stuff
extern HCURSOR wxGetCurrentBusyCursor(); // from msw/utils.cpp
extern const wxCursor *wxGetGlobalCursor(); // from msw/cursor.cpp
WXDLLEXPORT void wxGetCharSize(WXHWND wnd, int *x, int *y, const wxFont *the_font);
WXDLLEXPORT void wxFillLogFont(LOGFONT *logFont, const wxFont *font);
WXDLLEXPORT wxFont wxCreateFontFromLogFont(const LOGFONT *logFont);
WXDLLEXPORT wxFontEncoding wxGetFontEncFromCharSet(int charset);
WXDLLEXPORT void wxSliderEvent(WXHWND control, WXWORD wParam, WXWORD pos);
WXDLLEXPORT void wxScrollBarEvent(WXHWND hbar, WXWORD wParam, WXWORD pos);
// Find maximum size of window/rectangle
WXDLLEXPORT extern void wxFindMaxSize(WXHWND hwnd, RECT *rect);
// Safely get the window text (i.e. without using fixed size buffer)
WXDLLEXPORT extern wxString wxGetWindowText(WXHWND hWnd);
// get the window class name
WXDLLEXPORT extern wxString wxGetWindowClass(WXHWND hWnd);
// get the window id (should be unsigned, hence this is not wxWindowID which
// is, for mainly historical reasons, signed)
WXDLLEXPORT extern WXWORD wxGetWindowId(WXHWND hWnd);
// check if hWnd's WNDPROC is wndProc. Return true if yes, false if they are
// different
WXDLLEXPORT extern bool wxCheckWindowWndProc(WXHWND hWnd, WXFARPROC wndProc);
// Does this window style specify any border?
inline bool wxStyleHasBorder(long style)
{
return (style & (wxSIMPLE_BORDER | wxRAISED_BORDER |
wxSUNKEN_BORDER | wxDOUBLE_BORDER)) != 0;
}
// ----------------------------------------------------------------------------
// functions mapping HWND to wxWindow
// ----------------------------------------------------------------------------
// this function simply checks whether the given hWnd corresponds to a wxWindow
// and returns either that window if it does or NULL otherwise
WXDLLEXPORT extern wxWindow* wxFindWinFromHandle(WXHWND hWnd);
// find the window for HWND which is part of some wxWindow, i.e. unlike
// wxFindWinFromHandle() above it will also work for "sub controls" of a
// wxWindow.
//
// returns the wxWindow corresponding to the given HWND or NULL.
WXDLLEXPORT extern wxWindow *wxGetWindowFromHWND(WXHWND hwnd);
// Get the size of an icon
WXDLLEXPORT extern wxSize wxGetHiconSize(HICON hicon);
// Lines are drawn differently for WinCE and regular WIN32
WXDLLEXPORT void wxDrawLine(HDC hdc, int x1, int y1, int x2, int y2);
// LocalAlloc should be used on WinCE
#ifdef __WXWINCE__
#include <winbase.h>
#if _WIN32_WCE <= 211
#define GlobalAlloc LocalAlloc
#define GlobalFree LocalFree
#define GlobalLock(mem) mem
#define GlobalUnlock(mem)
#define GlobalSize LocalSize
#define GPTR LPTR
#define GHND LPTR
#define GMEM_MOVEABLE 0
#define GMEM_SHARE 0
#endif
#if 0
HLOCAL
WINAPI
LocalAlloc (
UINT fuFlags,
UINT cbBytes
);
HLOCAL
WINAPI
LocalFree (
HLOCAL hMem
);
#ifndef LMEM_FIXED
#define LMEM_FIXED 0x0000
#define LMEM_MOVEABLE 0x0002
#define LMEM_NOCOMPACT 0x0010 /**** Used for Moveable Memory ***/
#define LMEM_NODISCARD 0x0020 /**** Ignored *****/
#define LMEM_ZEROINIT 0x0040
#define LMEM_MODIFY 0x0080 /*** Used only in LocalReAlloc() **/
#define LMEM_DISCARDABLE 0x0F00 /**** Ignored ****/
#define LMEM_VALID_FLAGS 0x0F72
#define LMEM_INVALID_HANDLE 0x8000
#define LHND (LMEM_MOVEABLE | LMEM_ZEROINIT)
#define LPTR (LMEM_FIXED | LMEM_ZEROINIT)
#endif
#endif
// 0
#endif
// __WXWINCE__
// ----------------------------------------------------------------------------
// 32/64 bit helpers
// ----------------------------------------------------------------------------
#ifdef __WIN64__
inline void *wxGetWindowProc(HWND hwnd)
{
return (void *)::GetWindowLongPtr(hwnd, GWLP_WNDPROC);
}
inline void *wxGetWindowUserData(HWND hwnd)
{
return (void *)::GetWindowLongPtr(hwnd, GWLP_USERDATA);
}
inline WNDPROC wxSetWindowProc(HWND hwnd, WNDPROC func)
{
return (WNDPROC)::SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR)func);
}
inline void *wxSetWindowUserData(HWND hwnd, void *data)
{
return (void *)::SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)data);
}
#else // __WIN32__
inline void *wxGetWindowProc(HWND hwnd)
{
return (void *)::GetWindowLong(hwnd, GWL_WNDPROC);
}
inline void *wxGetWindowUserData(HWND hwnd)
{
return (void *)::GetWindowLong(hwnd, GWL_USERDATA);
}
inline WNDPROC wxSetWindowProc(HWND hwnd, WNDPROC func)
{
return (WNDPROC)::SetWindowLong(hwnd, GWL_WNDPROC, (LONG)func);
}
inline void *wxSetWindowUserData(HWND hwnd, void *data)
{
return (void *)::SetWindowLong(hwnd, GWL_USERDATA, (LONG)data);
}
#endif // __WIN64__/__WIN32__
#endif // wxUSE_GUI
#endif
// _WX_PRIVATE_H_
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