c9f7896861
1. changed c_str() to return wxCStrData (implicitly convertible to wxChar*) 2. added template type-safe wrappers for vararg functions 3. added wxUniChar class representing single Unicode character 4. changed wxString::operator[] and wxString::iterator to return wxUniChar git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44865 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
550 lines
17 KiB
C++
550 lines
17 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/msw/filedlg.cpp
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// Purpose: wxFileDialog
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// Author: Julian Smart
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// Modified by:
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// Created: 01/02/97
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#if wxUSE_FILEDLG && !(defined(__SMARTPHONE__) && defined(__WXWINCE__))
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#include "wx/filedlg.h"
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#ifndef WX_PRECOMP
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#include "wx/msw/wrapcdlg.h"
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#include "wx/msw/missing.h"
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#include "wx/utils.h"
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#include "wx/msgdlg.h"
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#include "wx/filefn.h"
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#include "wx/intl.h"
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#include "wx/log.h"
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#include "wx/app.h"
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#include "wx/math.h"
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include "wx/filename.h"
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#include "wx/tokenzr.h"
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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#ifdef __WIN32__
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# define wxMAXPATH 65534
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#else
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# define wxMAXPATH 1024
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#endif
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# define wxMAXFILE 1024
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# define wxMAXEXT 5
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// ----------------------------------------------------------------------------
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// globals
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// ----------------------------------------------------------------------------
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// standard dialog size
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static wxRect gs_rectDialog(0, 0, 428, 266);
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// ============================================================================
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// implementation
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// ============================================================================
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IMPLEMENT_CLASS(wxFileDialog, wxFileDialogBase)
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// ----------------------------------------------------------------------------
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// hook function for moving the dialog
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// ----------------------------------------------------------------------------
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UINT_PTR APIENTRY
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wxFileDialogHookFunction(HWND hDlg,
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UINT iMsg,
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WPARAM WXUNUSED(wParam),
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LPARAM lParam)
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{
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switch ( iMsg )
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{
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case WM_NOTIFY:
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{
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OFNOTIFY *pNotifyCode = wx_reinterpret_cast(OFNOTIFY *, lParam);
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if ( pNotifyCode->hdr.code == CDN_INITDONE )
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{
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// note that we need to move the parent window: hDlg is a
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// child of it when OFN_EXPLORER is used
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::SetWindowPos
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(
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::GetParent(hDlg),
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HWND_TOP,
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gs_rectDialog.x, gs_rectDialog.y,
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0, 0,
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SWP_NOZORDER | SWP_NOSIZE
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);
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}
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}
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break;
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case WM_DESTROY:
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// reuse the position used for the dialog the next time by default
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//
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// NB: at least under Windows 2003 this is useless as after the
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// first time it's shown the dialog always remembers its size
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// and position itself and ignores any later SetWindowPos calls
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wxCopyRECTToRect(wxGetWindowRect(::GetParent(hDlg)), gs_rectDialog);
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break;
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}
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// do the default processing
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return 0;
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}
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// ----------------------------------------------------------------------------
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// wxFileDialog
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// ----------------------------------------------------------------------------
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wxFileDialog::wxFileDialog(wxWindow *parent,
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const wxString& message,
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const wxString& defaultDir,
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const wxString& defaultFileName,
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const wxString& wildCard,
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long style,
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const wxPoint& pos,
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const wxSize& sz,
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const wxString& name)
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: wxFileDialogBase(parent, message, defaultDir, defaultFileName,
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wildCard, style, pos, sz, name)
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{
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// NB: all style checks are done by wxFileDialogBase::Create
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m_bMovedWindow = false;
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// Must set to zero, otherwise the wx routines won't size the window
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// the second time you call the file dialog, because it thinks it is
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// already at the requested size.. (when centering)
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gs_rectDialog.x =
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gs_rectDialog.y = 0;
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}
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void wxFileDialog::GetPaths(wxArrayString& paths) const
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{
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paths.Empty();
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wxString dir(m_dir);
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if ( m_dir.Last() != _T('\\') )
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dir += _T('\\');
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size_t count = m_fileNames.GetCount();
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for ( size_t n = 0; n < count; n++ )
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{
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if (wxFileName(m_fileNames[n]).IsAbsolute())
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paths.Add(m_fileNames[n]);
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else
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paths.Add(dir + m_fileNames[n]);
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}
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}
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void wxFileDialog::GetFilenames(wxArrayString& files) const
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{
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files = m_fileNames;
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}
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void wxFileDialog::SetPath(const wxString& path)
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{
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wxString ext;
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wxSplitPath(path, &m_dir, &m_fileName, &ext);
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if ( !ext.empty() )
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m_fileName << _T('.') << ext;
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}
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void wxFileDialog::DoGetPosition(int *x, int *y) const
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{
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if ( x )
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*x = gs_rectDialog.x;
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if ( y )
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*y = gs_rectDialog.y;
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}
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void wxFileDialog::DoGetSize(int *width, int *height) const
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{
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if ( width )
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*width = gs_rectDialog.width;
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if ( height )
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*height = gs_rectDialog.height;
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}
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void wxFileDialog::DoMoveWindow(int x, int y, int WXUNUSED(w), int WXUNUSED(h))
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{
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m_bMovedWindow = true;
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gs_rectDialog.x = x;
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gs_rectDialog.y = y;
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// size of the dialog can't be changed because the controls are not laid
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// out correctly then
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}
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// helper used below in ShowModal(): style is used to determine whether to show
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// the "Save file" dialog (if it contains wxFD_SAVE bit) or "Open file" one;
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// returns true on success or false on failure in which case err is filled with
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// the CDERR_XXX constant
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static bool DoShowCommFileDialog(OPENFILENAME *of, long style, DWORD *err)
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{
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if ( style & wxFD_SAVE ? GetSaveFileName(of) : GetOpenFileName(of) )
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return true;
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if ( err )
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{
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#ifdef __WXWINCE__
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// according to MSDN, CommDlgExtendedError() should work under CE as
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// well but apparently in practice it doesn't (anybody has more
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// details?)
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*err = GetLastError();
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#else
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*err = CommDlgExtendedError();
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#endif
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}
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return false;
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}
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// We want to use OPENFILENAME struct version 5 (Windows 2000/XP) but we don't
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// know if the OPENFILENAME declared in the currently used headers is a V5 or
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// V4 (smaller) one so we try to manually extend the struct in case it is the
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// old one.
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//
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// We don't do this on Windows CE nor under Win64, however, as there are no
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// compilers with old headers for these architectures
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#if defined(__WXWINCE__) || defined(__WIN64__)
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typedef OPENFILENAME wxOPENFILENAME;
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static const DWORD gs_ofStructSize = sizeof(OPENFILENAME);
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#else // !__WXWINCE__ || __WIN64__
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#define wxTRY_SMALLER_OPENFILENAME
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struct wxOPENFILENAME : public OPENFILENAME
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{
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// fields added in Windows 2000/XP comdlg32.dll version
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void *pVoid;
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DWORD dw1;
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DWORD dw2;
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};
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// hardcoded sizeof(OPENFILENAME) in the Platform SDK: we have to do it
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// because sizeof(OPENFILENAME) in the headers we use when compiling the
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// library could be less if _WIN32_WINNT is not >= 0x500
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static const DWORD wxOPENFILENAME_V5_SIZE = 88;
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// this is hardcoded sizeof(OPENFILENAME_NT4) from Platform SDK
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static const DWORD wxOPENFILENAME_V4_SIZE = 76;
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// always try the new one first
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static DWORD gs_ofStructSize = wxOPENFILENAME_V5_SIZE;
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#endif // __WXWINCE__ || __WIN64__/!...
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int wxFileDialog::ShowModal()
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{
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HWND hWnd = 0;
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if (m_parent) hWnd = (HWND) m_parent->GetHWND();
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if (!hWnd && wxTheApp->GetTopWindow())
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hWnd = (HWND) wxTheApp->GetTopWindow()->GetHWND();
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static wxChar fileNameBuffer [ wxMAXPATH ]; // the file-name
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wxChar titleBuffer [ wxMAXFILE+1+wxMAXEXT ]; // the file-name, without path
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*fileNameBuffer = wxT('\0');
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*titleBuffer = wxT('\0');
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long msw_flags = OFN_HIDEREADONLY;
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if ( HasFdFlag(wxFD_FILE_MUST_EXIST) )
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msw_flags |= OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
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/*
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If the window has been moved the programmer is probably
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trying to center or position it. Thus we set the callback
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or hook function so that we can actually adjust the position.
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Without moving or centering the dlg, it will just stay
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in the upper left of the frame, it does not center
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automatically.
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*/
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if (m_bMovedWindow) // we need these flags.
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{
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msw_flags |= OFN_EXPLORER|OFN_ENABLEHOOK;
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#ifndef __WXWINCE__
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msw_flags |= OFN_ENABLESIZING;
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#endif
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}
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if ( HasFdFlag(wxFD_MULTIPLE) )
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{
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// OFN_EXPLORER must always be specified with OFN_ALLOWMULTISELECT
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msw_flags |= OFN_EXPLORER | OFN_ALLOWMULTISELECT;
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}
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// if wxFD_CHANGE_DIR flag is not given we shouldn't change the CWD which the
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// standard dialog does by default (notice that under NT it does it anyhow,
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// OFN_NOCHANGEDIR or not, see below)
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if ( !HasFdFlag(wxFD_CHANGE_DIR) )
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{
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msw_flags |= OFN_NOCHANGEDIR;
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}
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if ( HasFdFlag(wxFD_OVERWRITE_PROMPT) )
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{
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msw_flags |= OFN_OVERWRITEPROMPT;
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}
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wxOPENFILENAME of;
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wxZeroMemory(of);
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of.lStructSize = gs_ofStructSize;
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of.hwndOwner = hWnd;
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of.lpstrTitle = WXSTRINGCAST m_message;
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of.lpstrFileTitle = titleBuffer;
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of.nMaxFileTitle = wxMAXFILE + 1 + wxMAXEXT;
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// Convert forward slashes to backslashes (file selector doesn't like
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// forward slashes) and also squeeze multiple consecutive slashes into one
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// as it doesn't like two backslashes in a row neither
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wxString dir;
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size_t i, len = m_dir.length();
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dir.reserve(len);
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for ( i = 0; i < len; i++ )
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{
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wxChar ch = m_dir[i];
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switch ( ch )
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{
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case _T('/'):
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// convert to backslash
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ch = _T('\\');
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// fall through
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case _T('\\'):
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while ( i < len - 1 )
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{
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wxChar chNext = m_dir[i + 1];
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if ( chNext != _T('\\') && chNext != _T('/') )
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break;
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// ignore the next one, unless it is at the start of a UNC path
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if (i > 0)
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i++;
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else
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break;
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}
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// fall through
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default:
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// normal char
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dir += ch;
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}
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}
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of.lpstrInitialDir = dir.c_str();
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of.Flags = msw_flags;
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of.lpfnHook = wxFileDialogHookFunction;
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wxArrayString wildDescriptions, wildFilters;
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size_t items = wxParseCommonDialogsFilter(m_wildCard, wildDescriptions, wildFilters);
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wxASSERT_MSG( items > 0 , _T("empty wildcard list") );
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wxString filterBuffer;
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for (i = 0; i < items ; i++)
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{
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filterBuffer += wildDescriptions[i];
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filterBuffer += wxT("|");
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filterBuffer += wildFilters[i];
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filterBuffer += wxT("|");
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}
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// Replace | with \0
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for (i = 0; i < filterBuffer.length(); i++ ) {
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if ( filterBuffer.GetChar(i) == wxT('|') ) {
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filterBuffer[i] = wxT('\0');
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}
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}
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of.lpstrFilter = (LPTSTR)filterBuffer.wx_str();
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of.nFilterIndex = m_filterIndex + 1;
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//=== Setting defaultFileName >>=========================================
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wxStrncpy( fileNameBuffer, (const wxChar *)m_fileName, wxMAXPATH-1 );
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fileNameBuffer[ wxMAXPATH-1 ] = wxT('\0');
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of.lpstrFile = fileNameBuffer; // holds returned filename
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of.nMaxFile = wxMAXPATH;
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// we must set the default extension because otherwise Windows would check
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// for the existing of a wrong file with wxFD_OVERWRITE_PROMPT (i.e. if the
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// user types "foo" and the default extension is ".bar" we should force it
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// to check for "foo.bar" existence and not "foo")
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wxString defextBuffer; // we need it to be alive until GetSaveFileName()!
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if (HasFdFlag(wxFD_SAVE))
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{
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const wxChar* extension = filterBuffer;
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int maxFilter = (int)(of.nFilterIndex*2L) - 1;
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for( int i = 0; i < maxFilter; i++ ) // get extension
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extension = extension + wxStrlen( extension ) + 1;
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// use dummy name a to avoid assert in AppendExtension
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defextBuffer = AppendExtension(wxT("a"), extension);
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if (defextBuffer.StartsWith(wxT("a.")))
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{
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defextBuffer = defextBuffer.Mid(2); // remove "a."
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of.lpstrDefExt = defextBuffer.c_str();
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}
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}
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// store off before the standard windows dialog can possibly change it
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const wxString cwdOrig = wxGetCwd();
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//== Execute FileDialog >>=================================================
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DWORD errCode;
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bool success = DoShowCommFileDialog(&of, m_windowStyle, &errCode);
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#ifdef wxTRY_SMALLER_OPENFILENAME
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// the system might be too old to support the new version file dialog
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// boxes, try with the old size
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if ( !success && errCode == CDERR_STRUCTSIZE &&
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of.lStructSize != wxOPENFILENAME_V4_SIZE )
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{
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of.lStructSize = wxOPENFILENAME_V4_SIZE;
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success = DoShowCommFileDialog(&of, m_windowStyle, &errCode);
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if ( success || !errCode )
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{
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// use this struct size for subsequent dialogs
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gs_ofStructSize = of.lStructSize;
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}
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}
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#endif // wxTRY_SMALLER_OPENFILENAME
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if ( success )
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{
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// GetOpenFileName will always change the current working directory on
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// (according to MSDN) "Windows NT 4.0/2000/XP" because the flag
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// OFN_NOCHANGEDIR has no effect. If the user did not specify
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// wxFD_CHANGE_DIR let's restore the current working directory to what it
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// was before the dialog was shown.
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if ( msw_flags & OFN_NOCHANGEDIR )
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{
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wxSetWorkingDirectory(cwdOrig);
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}
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m_fileNames.Empty();
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if ( ( HasFdFlag(wxFD_MULTIPLE) ) &&
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#if defined(OFN_EXPLORER)
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( fileNameBuffer[of.nFileOffset-1] == wxT('\0') )
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#else
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( fileNameBuffer[of.nFileOffset-1] == wxT(' ') )
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#endif // OFN_EXPLORER
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)
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{
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#if defined(OFN_EXPLORER)
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m_dir = fileNameBuffer;
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i = of.nFileOffset;
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m_fileName = &fileNameBuffer[i];
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m_fileNames.Add(m_fileName);
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i += m_fileName.length() + 1;
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while (fileNameBuffer[i] != wxT('\0'))
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{
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m_fileNames.Add(&fileNameBuffer[i]);
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i += wxStrlen(&fileNameBuffer[i]) + 1;
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}
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#else
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wxStringTokenizer toke(fileNameBuffer, _T(" \t\r\n"));
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m_dir = toke.GetNextToken();
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m_fileName = toke.GetNextToken();
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m_fileNames.Add(m_fileName);
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while (toke.HasMoreTokens())
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m_fileNames.Add(toke.GetNextToken());
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#endif // OFN_EXPLORER
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wxString dir(m_dir);
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if ( m_dir.Last() != _T('\\') )
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dir += _T('\\');
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m_path = dir + m_fileName;
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m_filterIndex = (int)of.nFilterIndex - 1;
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}
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else
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{
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//=== Adding the correct extension >>=================================
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m_filterIndex = (int)of.nFilterIndex - 1;
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if ( !of.nFileExtension ||
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(of.nFileExtension && fileNameBuffer[of.nFileExtension] == wxT('\0')) )
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{
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// User has typed a filename without an extension:
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const wxChar* extension = filterBuffer;
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int maxFilter = (int)(of.nFilterIndex*2L) - 1;
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for( int i = 0; i < maxFilter; i++ ) // get extension
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extension = extension + wxStrlen( extension ) + 1;
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m_fileName = AppendExtension(fileNameBuffer, extension);
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wxStrncpy(fileNameBuffer, m_fileName.c_str(), wxMin(m_fileName.length(), wxMAXPATH-1));
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fileNameBuffer[wxMin(m_fileName.length(), wxMAXPATH-1)] = wxT('\0');
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}
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m_path = fileNameBuffer;
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m_fileName = wxFileNameFromPath(fileNameBuffer);
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m_fileNames.Add(m_fileName);
|
|
m_dir = wxPathOnly(fileNameBuffer);
|
|
}
|
|
}
|
|
#ifdef __WXDEBUG__
|
|
else
|
|
{
|
|
// common dialog failed - why?
|
|
if ( errCode != 0 )
|
|
{
|
|
// this msg is only for developers so don't translate it
|
|
wxLogError(wxT("Common dialog failed with error code %0lx."),
|
|
errCode);
|
|
}
|
|
//else: it was just cancelled
|
|
}
|
|
#endif // __WXDEBUG__
|
|
|
|
return success ? wxID_OK : wxID_CANCEL;
|
|
|
|
}
|
|
|
|
#endif // wxUSE_FILEDLG && !(__SMARTPHONE__ && __WXWINCE__)
|