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