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
  31 // ============================================================================
  32 // implementation
  33 // ============================================================================
  34
  35 DEFINE_EVENT_TYPE(wxEVT_COMMAND_FILEPICKER_CHANGED)
  36 DEFINE_EVENT_TYPE(wxEVT_COMMAND_DIRPICKER_CHANGED)
  37 IMPLEMENT_DYNAMIC_CLASS(wxFileDirPickerEvent, wxCommandEvent)
  38
  39 // ----------------------------------------------------------------------------
  40 // wxFileDirPickerCtrlBase
  41 // ----------------------------------------------------------------------------
  42
  43 #define M_PICKER     ((wxFilePickerWidget*)m_picker)
  44
  45 bool wxFileDirPickerCtrlBase::CreateBase( wxWindow *parent, wxWindowID id,
  46                         const wxString &path, const wxString &message,
  47                         const wxString &wildcard,
  48                         const wxPoint &pos, const wxSize &size,
  49                         long style, const wxValidator& validator,
  50                         const wxString &name )
  51 {
  52     wxASSERT_MSG(path.empty() || CheckPath(path), wxT("Invalid initial path !"));
  53
  54     if (!wxPickerBase::CreateBase(parent, id, path, pos, size,
  55                                    style, validator, name))
  56         return false;
  57
  58     if (!HasFlag(wxFLP_OPEN) && !HasFlag(wxFLP_SAVE))
  59         m_windowStyle |= wxFLP_OPEN;     // wxFD_OPEN is the default
  60
  61     // check that the styles are not contradictory
  62     wxASSERT_MSG( !(HasFlag(wxFLP_SAVE) && HasFlag(wxFLP_OPEN)),
  63                   _T("can't specify both wxFLP_SAVE and wxFLP_OPEN at once") );
  64
  65     wxASSERT_MSG( !HasFlag(wxFLP_SAVE) || !HasFlag(wxFLP_FILE_MUST_EXIST),
  66                    _T("wxFLP_FILE_MUST_EXIST can't be used with wxFLP_SAVE" ) );
  67
  68     wxASSERT_MSG( !HasFlag(wxFLP_OPEN) || !HasFlag(wxFLP_OVERWRITE_PROMPT),
  69                   _T("wxFLP_OVERWRITE_PROMPT can't be used with wxFLP_OPEN") );
  70
  71     // create a wxFilePickerWidget or a wxDirPickerWidget...
  72     if (!CreatePicker(this, path, message, wildcard))
  73         return false;
  74     m_picker->Connect(GetEventType(),
  75             wxFileDirPickerEventHandler(wxFileDirPickerCtrlBase::OnFileDirChange),
  76             NULL, this);
  77
  78     // default's wxPickerBase textctrl limit is too small for this control:
  79     // make it bigger
  80     if (m_text) m_text->SetMaxLength(512);
  81
  82     return true;
  83 }
  84
  85 void wxFileDirPickerCtrlBase::SetPath(const wxString &path)
  86 {
  87     M_PICKER->SetPath(path);
  88     UpdateTextCtrlFromPicker();
  89 }
  90
  91 void wxFileDirPickerCtrlBase::UpdatePickerFromTextCtrl()
  92 {
  93     wxASSERT(m_text);
  94
  95     if (m_bIgnoreNextTextCtrlUpdate)
  96     {
  97         // ignore this update
  98         m_bIgnoreNextTextCtrlUpdate = false;
  99         return;
 100     }
 101
 102     // remove the eventually present path-separator from the end of the textctrl
 103     // string otherwise we would generate a wxFileDirPickerEvent when changing
 104     // from e.g. /home/user to /home/user/ and we want to avoid it !
 105     wxString newpath(m_text->GetValue());
 106     if (!newpath.empty() && wxFileName::IsPathSeparator(newpath.Last()))
 107         newpath.RemoveLast();
 108     if (!CheckPath(newpath))
 109         return;       // invalid user input
 110
 111     if (M_PICKER->GetPath() != newpath)
 112     {
 113         M_PICKER->SetPath(newpath);
 114
 115         // update current working directory, if necessary
 116         // NOTE: the path separator is required because if newpath is "C:"
 117         //       then no change would happen
 118         if (IsCwdToUpdate())
 119             wxSetWorkingDirectory(newpath + wxFileName::GetPathSeparator());
 120
 121         // fire an event
 122         wxFileDirPickerEvent event(GetEventType(), this, GetId(), newpath);
 123         GetEventHandler()->ProcessEvent(event);
 124     }
 125 }
 126
 127 void wxFileDirPickerCtrlBase::UpdateTextCtrlFromPicker()
 128 {
 129     if (!m_text)
 130         return;     // no textctrl to update
 131
 132     // NOTE: this SetValue() will generate an unwanted wxEVT_COMMAND_TEXT_UPDATED
 133     //       which will trigger a unneeded UpdateFromTextCtrl(); thus before using
 134     //       SetValue() we set the m_bIgnoreNextTextCtrlUpdate flag...
 135     m_bIgnoreNextTextCtrlUpdate = true;
 136     m_text->SetValue(M_PICKER->GetPath());
 137 }
 138
 139
 140
 141 // ----------------------------------------------------------------------------
 142 // wxFileDirPickerCtrlBase - event handlers
 143 // ----------------------------------------------------------------------------
 144
 145 void wxFileDirPickerCtrlBase::OnFileDirChange(wxFileDirPickerEvent &ev)
 146 {
 147     UpdateTextCtrlFromPicker();
 148
 149     // the wxFilePickerWidget sent us a colour-change notification.
 150     // forward this event to our parent
 151     wxFileDirPickerEvent event(GetEventType(), this, GetId(), ev.GetPath());
 152     GetEventHandler()->ProcessEvent(event);
 153 }
 154
 155 #endif  // wxUSE_FILEPICKERCTRL || wxUSE_DIRPICKERCTRL
 156
 157 #if wxUSE_FILEPICKERCTRL
 158 IMPLEMENT_DYNAMIC_CLASS(wxFilePickerCtrl, wxPickerBase)
 159 #endif
 160 #if wxUSE_DIRPICKERCTRL
 161 IMPLEMENT_DYNAMIC_CLASS(wxDirPickerCtrl, wxPickerBase)
 162 #endif