wxWidgets/include/wx/utils.h
Václav Slavík 2c18f21dc7 change to /usr/share/wx/version
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12573 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2001-11-22 00:30:44 +00:00

486 lines
17 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: utils.h
// Purpose: Miscellaneous utilities
// Author: Julian Smart
// Modified by:
// Created: 29/01/98
// RCS-ID: $Id$
// Copyright: (c) 1998 Julian Smart
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_UTILSH__
#define _WX_UTILSH__
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#ifdef __GNUG__
#pragma interface "utils.h"
#endif
#include "wx/object.h"
#include "wx/list.h"
#include "wx/filefn.h"
// need this for wxGetDiskSpace() as we can't, unfortunately, forward declare
// wxLongLong
#include "wx/longlong.h"
#ifdef __X__
#include <dirent.h>
#include <unistd.h>
#endif
#include <stdio.h>
// ----------------------------------------------------------------------------
// Forward declaration
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxProcess;
class WXDLLEXPORT wxFrame;
class WXDLLEXPORT wxWindow;
class WXDLLEXPORT wxWindowList;
class WXDLLEXPORT wxPoint;
// ----------------------------------------------------------------------------
// Macros
// ----------------------------------------------------------------------------
#define wxMax(a,b) (((a) > (b)) ? (a) : (b))
#define wxMin(a,b) (((a) < (b)) ? (a) : (b))
// ----------------------------------------------------------------------------
// String functions (deprecated, use wxString)
// ----------------------------------------------------------------------------
// Useful buffer (FIXME VZ: To be removed!!!)
WXDLLEXPORT_DATA(extern wxChar*) wxBuffer;
// Make a copy of this string using 'new'
WXDLLEXPORT wxChar* copystring(const wxChar *s);
// Matches string one within string two regardless of case
WXDLLEXPORT bool StringMatch(const wxChar *one, const wxChar *two, bool subString = TRUE, bool exact = FALSE);
// A shorter way of using strcmp
#define wxStringEq(s1, s2) (s1 && s2 && (wxStrcmp(s1, s2) == 0))
// ----------------------------------------------------------------------------
// Miscellaneous functions
// ----------------------------------------------------------------------------
// Sound the bell
WXDLLEXPORT void wxBell();
// Get OS description as a user-readable string
WXDLLEXPORT wxString wxGetOsDescription();
// Get OS version
WXDLLEXPORT int wxGetOsVersion(int *majorVsn = (int *) NULL,
int *minorVsn = (int *) NULL);
// Return a string with the current date/time
WXDLLEXPORT wxString wxNow();
// Return path where wxWindows is installed (mostly useful in Unices)
WXDLLEXPORT const wxChar *wxGetInstallPrefix();
// Return path to wxWin data (/usr/share/wx/%{version}) (Unices)
WXDLLEXPORT wxString wxGetDataDir();
#if wxUSE_GUI
// Don't synthesize KeyUp events holding down a key and producing
// KeyDown events with autorepeat. On by default and always on
// in wxMSW.
WXDLLEXPORT bool wxSetDetectableAutoRepeat( bool flag );
// ----------------------------------------------------------------------------
// Window ID management
// ----------------------------------------------------------------------------
// Generate a unique ID
WXDLLEXPORT long wxNewId();
#if !defined(NewId) && defined(WXWIN_COMPATIBILITY)
#define NewId wxNewId
#endif
// Ensure subsequent IDs don't clash with this one
WXDLLEXPORT void wxRegisterId(long id);
#if !defined(RegisterId) && defined(WXWIN_COMPATIBILITY)
#define RegisterId wxRegisterId
#endif
// Return the current ID
WXDLLEXPORT long wxGetCurrentId();
#endif // wxUSE_GUI
// ----------------------------------------------------------------------------
// Various conversions
// ----------------------------------------------------------------------------
WXDLLEXPORT_DATA(extern const wxChar*) wxFloatToStringStr;
WXDLLEXPORT_DATA(extern const wxChar*) wxDoubleToStringStr;
WXDLLEXPORT void StringToFloat(const wxChar *s, float *number);
WXDLLEXPORT wxChar* FloatToString(float number, const wxChar *fmt = wxFloatToStringStr);
WXDLLEXPORT void StringToDouble(const wxChar *s, double *number);
WXDLLEXPORT wxChar* DoubleToString(double number, const wxChar *fmt = wxDoubleToStringStr);
WXDLLEXPORT void StringToInt(const wxChar *s, int *number);
WXDLLEXPORT void StringToLong(const wxChar *s, long *number);
WXDLLEXPORT wxChar* IntToString(int number);
WXDLLEXPORT wxChar* LongToString(long number);
// Convert 2-digit hex number to decimal
WXDLLEXPORT int wxHexToDec(const wxString& buf);
// Convert decimal integer to 2-character hex string
WXDLLEXPORT void wxDecToHex(int dec, wxChar *buf);
WXDLLEXPORT wxString wxDecToHex(int dec);
// ----------------------------------------------------------------------------
// Process management
// ----------------------------------------------------------------------------
// Execute another program. Returns 0 if there was an error, a PID otherwise.
WXDLLEXPORT long wxExecute(wxChar **argv, bool sync = FALSE,
wxProcess *process = (wxProcess *) NULL);
WXDLLEXPORT long wxExecute(const wxString& command, bool sync = FALSE,
wxProcess *process = (wxProcess *) NULL);
// execute the command capturing its output into an array line by line
WXDLLEXPORT long wxExecute(const wxString& command,
wxArrayString& output);
// also capture stderr
WXDLLEXPORT long wxExecute(const wxString& command,
wxArrayString& output,
wxArrayString& error);
enum wxSignal
{
wxSIGNONE = 0, // verify if the process exists under Unix
wxSIGHUP,
wxSIGINT,
wxSIGQUIT,
wxSIGILL,
wxSIGTRAP,
wxSIGABRT,
wxSIGIOT = wxSIGABRT, // another name
wxSIGEMT,
wxSIGFPE,
wxSIGKILL,
wxSIGBUS,
wxSIGSEGV,
wxSIGSYS,
wxSIGPIPE,
wxSIGALRM,
wxSIGTERM
// further signals are different in meaning between different Unix systems
};
enum wxKillError
{
wxKILL_OK, // no error
wxKILL_BAD_SIGNAL, // no such signal
wxKILL_ACCESS_DENIED, // permission denied
wxKILL_NO_PROCESS, // no such process
wxKILL_ERROR // another, unspecified error
};
// send the given signal to the process (only NONE and KILL are supported under
// Windows, all others mean TERM), return 0 if ok and -1 on error
//
// return detailed error in rc if not NULL
WXDLLEXPORT int wxKill(long pid,
wxSignal sig = wxSIGTERM,
wxKillError *rc = NULL);
// Execute a command in an interactive shell window (always synchronously)
// If no command then just the shell
WXDLLEXPORT bool wxShell(const wxString& command = wxEmptyString);
// As wxShell(), but must give a (non interactive) command and its output will
// be returned in output array
WXDLLEXPORT bool wxShell(const wxString& command, wxArrayString& output);
// Sleep for nSecs seconds
WXDLLEXPORT void wxSleep(int nSecs);
// Sleep for a given amount of milliseconds
WXDLLEXPORT void wxUsleep(unsigned long milliseconds);
// Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
WXDLLEXPORT long wxGetFreeMemory();
// should wxApp::OnFatalException() be called?
WXDLLEXPORT bool wxHandleFatalExceptions(bool doit = TRUE);
// ----------------------------------------------------------------------------
// Environment variables
// ----------------------------------------------------------------------------
// returns TRUE if variable exists (value may be NULL if you just want to check
// for this)
WXDLLEXPORT bool wxGetEnv(const wxString& var, wxString *value);
// set the env var name to the given value, return TRUE on success
WXDLLEXPORT bool wxSetEnv(const wxString& var, const wxChar *value);
// remove the env var from environment
inline bool wxUnsetEnv(const wxString& var) { return wxSetEnv(var, NULL); }
// ----------------------------------------------------------------------------
// Network and username functions.
// ----------------------------------------------------------------------------
// NB: "char *" functions are deprecated, use wxString ones!
// Get eMail address
WXDLLEXPORT bool wxGetEmailAddress(wxChar *buf, int maxSize);
WXDLLEXPORT wxString wxGetEmailAddress();
// Get hostname.
WXDLLEXPORT bool wxGetHostName(wxChar *buf, int maxSize);
WXDLLEXPORT wxString wxGetHostName();
// Get FQDN
WXDLLEXPORT wxString wxGetFullHostName();
WXDLLEXPORT bool wxGetFullHostName(wxChar *buf, int maxSize);
// Get user ID e.g. jacs (this is known as login name under Unix)
WXDLLEXPORT bool wxGetUserId(wxChar *buf, int maxSize);
WXDLLEXPORT wxString wxGetUserId();
// Get user name e.g. Julian Smart
WXDLLEXPORT bool wxGetUserName(wxChar *buf, int maxSize);
WXDLLEXPORT wxString wxGetUserName();
// Get current Home dir and copy to dest (returns pstr->c_str())
WXDLLEXPORT wxString wxGetHomeDir();
WXDLLEXPORT const wxChar* wxGetHomeDir(wxString *pstr);
// Get the user's home dir (caller must copy --- volatile)
// returns NULL is no HOME dir is known
#if defined(__UNIX__) && wxUSE_UNICODE
WXDLLEXPORT const wxMB2WXbuf wxGetUserHome(const wxString& user = wxEmptyString);
#else
WXDLLEXPORT wxChar* wxGetUserHome(const wxString& user = wxEmptyString);
#endif
#ifdef __WXMAC__
WXDLLEXPORT wxString wxMacFindFolder(short vRefNum,
OSType folderType,
Boolean createFolder);
#endif
// get number of total/free bytes on the disk where path belongs
WXDLLEXPORT bool wxGetDiskSpace(const wxString& path,
wxLongLong *pTotal = NULL,
wxLongLong *pFree = NULL);
#if wxUSE_GUI // GUI only things from now on
// ----------------------------------------------------------------------------
// Menu accelerators related things
// ----------------------------------------------------------------------------
WXDLLEXPORT wxChar* wxStripMenuCodes(const wxChar *in, wxChar *out = (wxChar *) NULL);
WXDLLEXPORT wxString wxStripMenuCodes(const wxString& str);
#if wxUSE_ACCEL
class WXDLLEXPORT wxAcceleratorEntry;
WXDLLEXPORT wxAcceleratorEntry *wxGetAccelFromString(const wxString& label);
#endif // wxUSE_ACCEL
// ----------------------------------------------------------------------------
// Window search
// ----------------------------------------------------------------------------
// Find the window/widget with the given title or label.
// Pass a parent to begin the search from, or NULL to look through
// all windows.
WXDLLEXPORT wxWindow* wxFindWindowByLabel(const wxString& title, wxWindow *parent = (wxWindow *) NULL);
// Find window by name, and if that fails, by label.
WXDLLEXPORT wxWindow* wxFindWindowByName(const wxString& name, wxWindow *parent = (wxWindow *) NULL);
// Returns menu item id or -1 if none.
WXDLLEXPORT int wxFindMenuItemId(wxFrame *frame, const wxString& menuString, const wxString& itemString);
// Find the wxWindow at the given point. wxGenericFindWindowAtPoint
// is always present but may be less reliable than a native version.
WXDLLEXPORT wxWindow* wxGenericFindWindowAtPoint(const wxPoint& pt);
WXDLLEXPORT wxWindow* wxFindWindowAtPoint(const wxPoint& pt);
// ----------------------------------------------------------------------------
// Message/event queue helpers
// ----------------------------------------------------------------------------
// Yield to other apps/messages
WXDLLEXPORT bool wxYield();
// Like wxYield, but fails silently if the yield is recursive.
WXDLLEXPORT bool wxYieldIfNeeded();
// Yield to other apps/messages and disable user input
WXDLLEXPORT bool wxSafeYield(wxWindow *win = NULL);
// Enable or disable input to all top level windows
WXDLLEXPORT void wxEnableTopLevelWindows(bool enable = TRUE);
// Check whether this window wants to process messages, e.g. Stop button
// in long calculations.
WXDLLEXPORT bool wxCheckForInterrupt(wxWindow *wnd);
// Consume all events until no more left
WXDLLEXPORT void wxFlushEvents();
// a class which disables all windows (except, may be, thegiven one) in its
// ctor and enables them back in its dtor
class WXDLLEXPORT wxWindowDisabler
{
public:
wxWindowDisabler(wxWindow *winToSkip = (wxWindow *)NULL);
~wxWindowDisabler();
private:
wxWindowList *m_winDisabled;
};
// ----------------------------------------------------------------------------
// Cursors
// ----------------------------------------------------------------------------
// Set the cursor to the busy cursor for all windows
class WXDLLEXPORT wxCursor;
WXDLLEXPORT_DATA(extern wxCursor*) wxHOURGLASS_CURSOR;
WXDLLEXPORT void wxBeginBusyCursor(wxCursor *cursor = wxHOURGLASS_CURSOR);
// Restore cursor to normal
WXDLLEXPORT void wxEndBusyCursor();
// TRUE if we're between the above two calls
WXDLLEXPORT bool wxIsBusy();
// Convenience class so we can just create a wxBusyCursor object on the stack
class WXDLLEXPORT wxBusyCursor
{
public:
wxBusyCursor(wxCursor* cursor = wxHOURGLASS_CURSOR)
{ wxBeginBusyCursor(cursor); }
~wxBusyCursor()
{ wxEndBusyCursor(); }
// FIXME: These two methods are currently only implemented (and needed?)
// in wxGTK. BusyCursor handling should probably be moved to
// common code since the wxGTK and wxMSW implementations are very
// similar except for wxMSW using HCURSOR directly instead of
// wxCursor.. -- RL.
static const wxCursor &GetStoredCursor();
static const wxCursor GetBusyCursor();
};
// ----------------------------------------------------------------------------
// Reading and writing resources (eg WIN.INI, .Xdefaults)
// ----------------------------------------------------------------------------
#if wxUSE_RESOURCES
WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file = wxEmptyString);
WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file = wxEmptyString);
WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file = wxEmptyString);
WXDLLEXPORT bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file = wxEmptyString);
WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, wxChar **value, const wxString& file = wxEmptyString);
WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file = wxEmptyString);
WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file = wxEmptyString);
WXDLLEXPORT bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file = wxEmptyString);
#endif // wxUSE_RESOURCES
void WXDLLEXPORT wxGetMousePosition( int* x, int* y );
// MSW only: get user-defined resource from the .res file.
// Returns NULL or newly-allocated memory, so use delete[] to clean up.
#ifdef __WXMSW__
WXDLLEXPORT extern const wxChar* wxUserResourceStr;
WXDLLEXPORT wxChar* wxLoadUserResource(const wxString& resourceName, const wxString& resourceType = wxUserResourceStr);
// Implemented in utils.cpp: VC++, Win95 only. Sets up a console for standard
// input/output
WXDLLEXPORT void wxRedirectIOToConsole();
#endif // MSW
// ----------------------------------------------------------------------------
// Display and colorss (X only)
// ----------------------------------------------------------------------------
#ifdef __WXGTK__
void *wxGetDisplay();
#endif
#ifdef __X__
WXDisplay *wxGetDisplay();
bool wxSetDisplay(const wxString& display_name);
wxString wxGetDisplayName();
#endif // X or GTK+
#ifdef __X__
#ifdef __VMS__ // Xlib.h for VMS is not (yet) compatible with C++
// The resulting warnings are switched off here
#pragma message disable nosimpint
#endif
#include <X11/Xlib.h>
#ifdef __VMS__
#pragma message enable nosimpint
#endif
#define wxMAX_RGB 0xff
#define wxMAX_SV 1000
#define wxSIGN(x) ((x < 0) ? -x : x)
#define wxH_WEIGHT 4
#define wxS_WEIGHT 1
#define wxV_WEIGHT 2
typedef struct wx_hsv {
int h,s,v;
} wxHSV;
#define wxMax3(x,y,z) ((x > y) ? ((x > z) ? x : z) : ((y > z) ? y : z))
#define wxMin3(x,y,z) ((x < y) ? ((x < z) ? x : z) : ((y < z) ? y : z))
void wxHSVToXColor(wxHSV *hsv,XColor *xcolor);
void wxXColorToHSV(wxHSV *hsv,XColor *xcolor);
void wxAllocNearestColor(Display *display,Colormap colormap,XColor *xcolor);
void wxAllocColor(Display *display,Colormap colormap,XColor *xcolor);
#endif //__X__
#endif // wxUSE_GUI
// ----------------------------------------------------------------------------
// Error message functions used by wxWindows (deprecated, use wxLog)
// ----------------------------------------------------------------------------
// Format a message on the standard error (UNIX) or the debugging
// stream (Windows)
WXDLLEXPORT void wxDebugMsg(const wxChar *fmt ...);
// Non-fatal error (continues)
WXDLLEXPORT_DATA(extern const wxChar*) wxInternalErrorStr;
WXDLLEXPORT void wxError(const wxString& msg, const wxString& title = wxInternalErrorStr);
// Fatal error (exits)
WXDLLEXPORT_DATA(extern const wxChar*) wxFatalErrorStr;
WXDLLEXPORT void wxFatalError(const wxString& msg, const wxString& title = wxFatalErrorStr);
#endif
// _WX_UTILSH__