src/common/filepickercmn.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/filepickercmn.cpp
   3 // Purpose:     wxFilePickerCtrl class implementation
   4 // Author:      Francesco Montorsi (readapted code written by Vadim Zeitlin)
   5 // Modified by:
   6 // Created:     15/04/2006
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vadim Zeitlin, Francesco Montorsi
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_FILEPICKERCTRL || wxUSE_DIRPICKERCTRL
  28
  29 #include "wx/filepicker.h"
  30 #include "wx/filename.h"
  31
  32 #ifndef WX_PRECOMP
  33     #include "wx/textctrl.h"
  34 #endif
  35
  36 // ============================================================================
  37 // implementation
  38 // ============================================================================
  39
  40 DEFINE_EVENT_TYPE(wxEVT_COMMAND_FILEPICKER_CHANGED)
  41 DEFINE_EVENT_TYPE(wxEVT_COMMAND_DIRPICKER_CHANGED)
  42 IMPLEMENT_DYNAMIC_CLASS(wxFileDirPickerEvent, wxCommandEvent)
  43
  44 // ----------------------------------------------------------------------------
  45 // wxFileDirPickerCtrlBase
  46 // ----------------------------------------------------------------------------
  47
  48 bool wxFileDirPickerCtrlBase::CreateBase( wxWindow *parent, wxWindowID id,
  49                         const wxString &path, const wxString &message,
  50                         const wxString &wildcard,
  51                         const wxPoint &pos, const wxSize &size,
  52                         long style, const wxValidator& validator,
  53                         const wxString &name )
  54 {
  55     wxASSERT_MSG(path.empty() || CheckPath(path), wxT("Invalid initial path!"));
  56
  57     if (!wxPickerBase::CreateBase(parent, id, path, pos, size,
  58                                    style, validator, name))
  59         return false;
  60
  61     if (!HasFlag(wxFLP_OPEN) && !HasFlag(wxFLP_SAVE))
  62         m_windowStyle |= wxFLP_OPEN;     // wxFD_OPEN is the default
  63
  64     // check that the styles are not contradictory
  65     wxASSERT_MSG( !(HasFlag(wxFLP_SAVE) && HasFlag(wxFLP_OPEN)),
  66                   _T("can't specify both wxFLP_SAVE and wxFLP_OPEN at once") );
  67
  68     wxASSERT_MSG( !HasFlag(wxFLP_SAVE) || !HasFlag(wxFLP_FILE_MUST_EXIST),
  69                    _T("wxFLP_FILE_MUST_EXIST can't be used with wxFLP_SAVE" ) );
  70
  71     wxASSERT_MSG( !HasFlag(wxFLP_OPEN) || !HasFlag(wxFLP_OVERWRITE_PROMPT),
  72                   _T("wxFLP_OVERWRITE_PROMPT can't be used with wxFLP_OPEN") );
  73
  74     // create a wxFilePickerWidget or a wxDirPickerWidget...
  75     m_pickerIface = CreatePicker(this, path, message, wildcard);
  76     if ( !m_pickerIface )
  77         return false;
  78     m_picker = m_pickerIface->AsControl();
  79
  80     // complete sizer creation
  81     wxPickerBase::PostCreation();
  82
  83     m_picker->Connect(GetEventType(),
  84             wxFileDirPickerEventHandler(wxFileDirPickerCtrlBase::OnFileDirChange),
  85             NULL, this);
  86
  87     // default's wxPickerBase textctrl limit is too small for this control:
  88     // make it bigger
  89     if (m_text) m_text->SetMaxLength(512);
  90
  91     return true;
  92 }
  93
  94 wxString wxFileDirPickerCtrlBase::GetPath() const
  95 {
  96     return m_pickerIface->GetPath();
  97 }
  98
  99 void wxFileDirPickerCtrlBase::SetPath(const wxString &path)
 100 {
 101     m_pickerIface->SetPath(path);
 102     UpdateTextCtrlFromPicker();
 103 }
 104
 105 void wxFileDirPickerCtrlBase::UpdatePickerFromTextCtrl()
 106 {
 107     wxASSERT(m_text);
 108
 109     if (m_bIgnoreNextTextCtrlUpdate)
 110     {
 111         // ignore this update
 112         m_bIgnoreNextTextCtrlUpdate = false;
 113         return;
 114     }
 115
 116     // remove the eventually present path-separator from the end of the textctrl
 117     // string otherwise we would generate a wxFileDirPickerEvent when changing
 118     // from e.g. /home/user to /home/user/ and we want to avoid it !
 119     wxString newpath(GetTextCtrlValue());
 120     if (!CheckPath(newpath))
 121         return;       // invalid user input
 122
 123     if (m_pickerIface->GetPath() != newpath)
 124     {
 125         m_pickerIface->SetPath(newpath);
 126
 127         // update current working directory, if necessary
 128         // NOTE: the path separator is required because if newpath is "C:"
 129         //       then no change would happen
 130         if (IsCwdToUpdate())
 131             wxSetWorkingDirectory(newpath);
 132
 133         // fire an event
 134         wxFileDirPickerEvent event(GetEventType(), this, GetId(), newpath);
 135         GetEventHandler()->ProcessEvent(event);
 136     }
 137 }
 138
 139 void wxFileDirPickerCtrlBase::UpdateTextCtrlFromPicker()
 140 {
 141     if (!m_text)
 142         return;     // no textctrl to update
 143
 144     // NOTE: this SetValue() will generate an unwanted wxEVT_COMMAND_TEXT_UPDATED
 145     //       which will trigger a unneeded UpdateFromTextCtrl(); thus before using
 146     //       SetValue() we set the m_bIgnoreNextTextCtrlUpdate flag...
 147     m_bIgnoreNextTextCtrlUpdate = true;
 148     m_text->SetValue(m_pickerIface->GetPath());
 149 }
 150
 151
 152
 153 // ----------------------------------------------------------------------------
 154 // wxFileDirPickerCtrlBase - event handlers
 155 // ----------------------------------------------------------------------------
 156
 157 void wxFileDirPickerCtrlBase::OnFileDirChange(wxFileDirPickerEvent &ev)
 158 {
 159     UpdateTextCtrlFromPicker();
 160
 161     // the wxFilePickerWidget sent us a colour-change notification.
 162     // forward this event to our parent
 163     wxFileDirPickerEvent event(GetEventType(), this, GetId(), ev.GetPath());
 164     GetEventHandler()->ProcessEvent(event);
 165 }
 166
 167 #endif  // wxUSE_FILEPICKERCTRL || wxUSE_DIRPICKERCTRL
 168
 169 // ----------------------------------------------------------------------------
 170 // wxFileDirPickerCtrl
 171 // ----------------------------------------------------------------------------
 172
 173 #if wxUSE_FILEPICKERCTRL
 174
 175 IMPLEMENT_DYNAMIC_CLASS(wxFilePickerCtrl, wxPickerBase)
 176
 177 bool wxFilePickerCtrl::CheckPath(const wxString& path) const
 178 {
 179     // if wxFLP_SAVE was given or wxFLP_FILE_MUST_EXIST has NOT been given we
 180     // must accept any path
 181     return HasFlag(wxFLP_SAVE) ||
 182             !HasFlag(wxFLP_FILE_MUST_EXIST) ||
 183                 wxFileName::FileExists(path);
 184 }
 185
 186 wxString wxFilePickerCtrl::GetTextCtrlValue() const
 187 {
 188     // filter it through wxFileName to remove any spurious path separator
 189     return wxFileName(m_text->GetValue()).GetFullPath();
 190 }
 191
 192 #endif // wxUSE_FILEPICKERCTRL
 193
 194 // ----------------------------------------------------------------------------
 195 // wxDirPickerCtrl
 196 // ----------------------------------------------------------------------------
 197
 198 #if wxUSE_DIRPICKERCTRL
 199 IMPLEMENT_DYNAMIC_CLASS(wxDirPickerCtrl, wxPickerBase)
 200
 201 bool wxDirPickerCtrl::CheckPath(const wxString& path) const
 202 {
 203     // if wxDIRP_DIR_MUST_EXIST has NOT been given we must accept any path
 204     return !HasFlag(wxDIRP_DIR_MUST_EXIST) || wxFileName::DirExists(path);
 205 }
 206
 207 wxString wxDirPickerCtrl::GetTextCtrlValue() const
 208 {
 209     // filter it through wxFileName to remove any spurious path separator
 210     return wxFileName::DirName(m_text->GetValue()).GetPath();
 211 }
 212
 213 #endif // wxUSE_DIRPICKERCTRL