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     // create a wxFilePickerWidget or a wxDirPickerWidget...
  59     if (!CreatePicker(this, path, message, wildcard))
  60         return false;
  61     m_picker->Connect(GetEventType(),
  62             wxFileDirPickerEventHandler(wxFileDirPickerCtrlBase::OnFileDirChange),
  63             NULL, this);
  64
  65     // default's wxPickerBase textctrl limit is too small for this control:
  66     // make it bigger
  67     if (m_text) m_text->SetMaxLength(512);
  68
  69     return true;
  70 }
  71
  72 void wxFileDirPickerCtrlBase::SetPath(const wxString &path)
  73 {
  74     M_PICKER->SetPath(path);
  75     UpdateTextCtrlFromPicker();
  76 }
  77
  78 void wxFileDirPickerCtrlBase::UpdatePickerFromTextCtrl()
  79 {
  80     wxASSERT(m_text);
  81
  82     if (m_bIgnoreNextTextCtrlUpdate)
  83     {
  84         // ignore this update
  85         m_bIgnoreNextTextCtrlUpdate = false;
  86         return;
  87     }
  88
  89     // remove the eventually present path-separator from the end of the textctrl
  90     // string otherwise we would generate a wxFileDirPickerEvent when changing
  91     // from e.g. /home/user to /home/user/ and we want to avoid it !
  92     wxString newpath(m_text->GetValue());
  93     if (!newpath.empty() && wxFileName::IsPathSeparator(newpath.Last()))
  94         newpath.RemoveLast();
  95     if (!CheckPath(newpath))
  96         return;       // invalid user input
  97
  98     if (M_PICKER->GetPath() != newpath)
  99     {
 100         M_PICKER->SetPath(newpath);
 101
 102         // update current working directory, if necessary
 103         // NOTE: the path separator is required because if newpath is "C:"
 104         //       then no change would happen
 105         if (IsCwdToUpdate())
 106             wxSetWorkingDirectory(newpath + wxFileName::GetPathSeparator());
 107
 108         // fire an event
 109         wxFileDirPickerEvent event(GetEventType(), this, GetId(), newpath);
 110         GetEventHandler()->ProcessEvent(event);
 111     }
 112 }
 113
 114 void wxFileDirPickerCtrlBase::UpdateTextCtrlFromPicker()
 115 {
 116     if (!m_text)
 117         return;     // no textctrl to update
 118
 119     // NOTE: this SetValue() will generate an unwanted wxEVT_COMMAND_TEXT_UPDATED
 120     //       which will trigger a unneeded UpdateFromTextCtrl(); thus before using
 121     //       SetValue() we set the m_bIgnoreNextTextCtrlUpdate flag...
 122     m_bIgnoreNextTextCtrlUpdate = true;
 123     m_text->SetValue(M_PICKER->GetPath());
 124 }
 125
 126
 127
 128 // ----------------------------------------------------------------------------
 129 // wxFileDirPickerCtrlBase - event handlers
 130 // ----------------------------------------------------------------------------
 131
 132 void wxFileDirPickerCtrlBase::OnFileDirChange(wxFileDirPickerEvent &ev)
 133 {
 134     UpdateTextCtrlFromPicker();
 135
 136     // the wxFilePickerWidget sent us a colour-change notification.
 137     // forward this event to our parent
 138     wxFileDirPickerEvent event(GetEventType(), this, GetId(), ev.GetPath());
 139     GetEventHandler()->ProcessEvent(event);
 140 }
 141
 142 #endif  // wxUSE_FILEPICKERCTRL || wxUSE_DIRPICKERCTRL
 143
 144 #if wxUSE_FILEPICKERCTRL
 145 IMPLEMENT_DYNAMIC_CLASS(wxFilePickerCtrl, wxPickerBase)
 146 #endif
 147 #if wxUSE_DIRPICKERCTRL
 148 IMPLEMENT_DYNAMIC_CLASS(wxDirPickerCtrl, wxPickerBase)
 149 #endif