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 const char wxFilePickerCtrlNameStr[] = "filepicker";
  41 const char wxFilePickerWidgetNameStr[] = "filepickerwidget";
  42 const char wxDirPickerCtrlNameStr[] = "dirpicker";
  43 const char wxDirPickerWidgetNameStr[] = "dirpickerwidget";
  44 const char wxFilePickerWidgetLabel[] = "Browse";
  45 const char wxDirPickerWidgetLabel[] = "Browse";
  46
  47 DEFINE_EVENT_TYPE(wxEVT_COMMAND_FILEPICKER_CHANGED)
  48 DEFINE_EVENT_TYPE(wxEVT_COMMAND_DIRPICKER_CHANGED)
  49 IMPLEMENT_DYNAMIC_CLASS(wxFileDirPickerEvent, wxCommandEvent)
  50
  51 // ----------------------------------------------------------------------------
  52 // wxFileDirPickerCtrlBase
  53 // ----------------------------------------------------------------------------
  54
  55 bool wxFileDirPickerCtrlBase::CreateBase(wxWindow *parent,
  56                                          wxWindowID id,
  57                                          const wxString &path,
  58                                          const wxString &message,
  59                                          const wxString &wildcard,
  60                                          const wxPoint &pos,
  61                                          const wxSize &size,
  62                                          long style,
  63                                          const wxValidator& validator,
  64                                          const wxString &name )
  65 {
  66     wxASSERT_MSG(path.empty() || CheckPath(path), wxT("Invalid initial path!"));
  67
  68     if (!wxPickerBase::CreateBase(parent, id, path, pos, size,
  69                                    style, validator, name))
  70         return false;
  71
  72     if (!HasFlag(wxFLP_OPEN) && !HasFlag(wxFLP_SAVE))
  73         m_windowStyle |= wxFLP_OPEN;     // wxFD_OPEN is the default
  74
  75     // check that the styles are not contradictory
  76     wxASSERT_MSG( !(HasFlag(wxFLP_SAVE) && HasFlag(wxFLP_OPEN)),
  77                   _T("can't specify both wxFLP_SAVE and wxFLP_OPEN at once") );
  78
  79     wxASSERT_MSG( !HasFlag(wxFLP_SAVE) || !HasFlag(wxFLP_FILE_MUST_EXIST),
  80                    _T("wxFLP_FILE_MUST_EXIST can't be used with wxFLP_SAVE" ) );
  81
  82     wxASSERT_MSG( !HasFlag(wxFLP_OPEN) || !HasFlag(wxFLP_OVERWRITE_PROMPT),
  83                   _T("wxFLP_OVERWRITE_PROMPT can't be used with wxFLP_OPEN") );
  84
  85     // create a wxFilePickerWidget or a wxDirPickerWidget...
  86     m_pickerIface = CreatePicker(this, path, message, wildcard);
  87     if ( !m_pickerIface )
  88         return false;
  89     m_picker = m_pickerIface->AsControl();
  90
  91     // complete sizer creation
  92     wxPickerBase::PostCreation();
  93
  94     m_picker->Connect(GetEventType(),
  95             wxFileDirPickerEventHandler(wxFileDirPickerCtrlBase::OnFileDirChange),
  96             NULL, this);
  97
  98     // default's wxPickerBase textctrl limit is too small for this control:
  99     // make it bigger
 100     if (m_text) m_text->SetMaxLength(512);
 101
 102     return true;
 103 }
 104
 105 wxString wxFileDirPickerCtrlBase::GetPath() const
 106 {
 107     return m_pickerIface->GetPath();
 108 }
 109
 110 void wxFileDirPickerCtrlBase::SetPath(const wxString &path)
 111 {
 112     m_pickerIface->SetPath(path);
 113     UpdateTextCtrlFromPicker();
 114 }
 115
 116 void wxFileDirPickerCtrlBase::UpdatePickerFromTextCtrl()
 117 {
 118     wxASSERT(m_text);
 119
 120     if (m_bIgnoreNextTextCtrlUpdate)
 121     {
 122         // ignore this update
 123         m_bIgnoreNextTextCtrlUpdate = false;
 124         return;
 125     }
 126
 127     // remove the eventually present path-separator from the end of the textctrl
 128     // string otherwise we would generate a wxFileDirPickerEvent when changing
 129     // from e.g. /home/user to /home/user/ and we want to avoid it !
 130     wxString newpath(GetTextCtrlValue());
 131     if (!CheckPath(newpath))
 132         return;       // invalid user input
 133
 134     if (m_pickerIface->GetPath() != newpath)
 135     {
 136         m_pickerIface->SetPath(newpath);
 137
 138         // update current working directory, if necessary
 139         // NOTE: the path separator is required because if newpath is "C:"
 140         //       then no change would happen
 141         if (IsCwdToUpdate())
 142             wxSetWorkingDirectory(newpath);
 143
 144         // fire an event
 145         wxFileDirPickerEvent event(GetEventType(), this, GetId(), newpath);
 146         GetEventHandler()->ProcessEvent(event);
 147     }
 148 }
 149
 150 void wxFileDirPickerCtrlBase::UpdateTextCtrlFromPicker()
 151 {
 152     if (!m_text)
 153         return;     // no textctrl to update
 154
 155     // NOTE: this SetValue() will generate an unwanted wxEVT_COMMAND_TEXT_UPDATED
 156     //       which will trigger a unneeded UpdateFromTextCtrl(); thus before using
 157     //       SetValue() we set the m_bIgnoreNextTextCtrlUpdate flag...
 158     m_bIgnoreNextTextCtrlUpdate = true;
 159     m_text->SetValue(m_pickerIface->GetPath());
 160 }
 161
 162
 163
 164 // ----------------------------------------------------------------------------
 165 // wxFileDirPickerCtrlBase - event handlers
 166 // ----------------------------------------------------------------------------
 167
 168 void wxFileDirPickerCtrlBase::OnFileDirChange(wxFileDirPickerEvent &ev)
 169 {
 170     UpdateTextCtrlFromPicker();
 171
 172     // the wxFilePickerWidget sent us a colour-change notification.
 173     // forward this event to our parent
 174     wxFileDirPickerEvent event(GetEventType(), this, GetId(), ev.GetPath());
 175     GetEventHandler()->ProcessEvent(event);
 176 }
 177
 178 #endif  // wxUSE_FILEPICKERCTRL || wxUSE_DIRPICKERCTRL
 179
 180 // ----------------------------------------------------------------------------
 181 // wxFileDirPickerCtrl
 182 // ----------------------------------------------------------------------------
 183
 184 #if wxUSE_FILEPICKERCTRL
 185
 186 IMPLEMENT_DYNAMIC_CLASS(wxFilePickerCtrl, wxPickerBase)
 187
 188 bool wxFilePickerCtrl::CheckPath(const wxString& path) const
 189 {
 190     // if wxFLP_SAVE was given or wxFLP_FILE_MUST_EXIST has NOT been given we
 191     // must accept any path
 192     return HasFlag(wxFLP_SAVE) ||
 193             !HasFlag(wxFLP_FILE_MUST_EXIST) ||
 194                 wxFileName::FileExists(path);
 195 }
 196
 197 wxString wxFilePickerCtrl::GetTextCtrlValue() const
 198 {
 199     // filter it through wxFileName to remove any spurious path separator
 200     return wxFileName(m_text->GetValue()).GetFullPath();
 201 }
 202
 203 #endif // wxUSE_FILEPICKERCTRL
 204
 205 // ----------------------------------------------------------------------------
 206 // wxDirPickerCtrl
 207 // ----------------------------------------------------------------------------
 208
 209 #if wxUSE_DIRPICKERCTRL
 210 IMPLEMENT_DYNAMIC_CLASS(wxDirPickerCtrl, wxPickerBase)
 211
 212 bool wxDirPickerCtrl::CheckPath(const wxString& path) const
 213 {
 214     // if wxDIRP_DIR_MUST_EXIST has NOT been given we must accept any path
 215     return !HasFlag(wxDIRP_DIR_MUST_EXIST) || wxFileName::DirExists(path);
 216 }
 217
 218 wxString wxDirPickerCtrl::GetTextCtrlValue() const
 219 {
 220     // filter it through wxFileName to remove any spurious path separator
 221     return wxFileName::DirName(m_text->GetValue()).GetPath();
 222 }
 223
 224 #endif // wxUSE_DIRPICKERCTRL