src/generic/progdlgg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        progdlgg.h
   3 // Purpose:     wxProgressDialog class
   4 // Author:      Karsten Ballüder
   5 // Modified by:
   6 // Created:     09.05.1999
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Karsten Ballüder
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "progdlgg.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/utils.h"
  25 #include "wx/frame.h"
  26 #include "wx/button.h"
  27 #include "wx/stattext.h"
  28 #include "wx/layout.h"
  29 #include "wx/event.h"
  30 #include "wx/gauge.h"
  31 #include "wx/intl.h"
  32 #endif
  33
  34 #if wxUSE_PROGRESSDLG
  35
  36 #include "wx/generic/progdlgg.h"
  37
  38 #define LAYOUT_X_MARGIN 8
  39 #define LAYOUT_Y_MARGIN 8
  40
  41 // wxTextEntryDialog
  42
  43 #if !USE_SHARED_LIBRARY
  44     BEGIN_EVENT_TABLE(wxProgressDialog, wxFrame)
  45        EVT_BUTTON(-1, wxProgressDialog::OnCancel)
  46        EVT_CLOSE(wxProgressDialog::OnClose)
  47     END_EVENT_TABLE()
  48
  49     IMPLEMENT_CLASS(wxProgressDialog, wxFrame)
  50 #endif
  51
  52 wxProgressDialog::wxProgressDialog(wxString const &title,
  53                                  wxString const &message,
  54                                  int maximum,
  55                                  wxWindow *parent,
  56                                  int style)
  57 {
  58    bool hasAbortButton = (style & wxPD_CAN_ABORT) != 0;
  59    m_state = hasAbortButton ? Continue : Uncancelable;
  60    m_disableParentOnly = (style & wxPD_APP_MODAL) == 0;
  61    m_parent = parent;
  62    m_maximum = maximum;
  63
  64    int height = 70;     // FIXME arbitrary numbers
  65    if ( hasAbortButton )
  66       height += 35;
  67    wxFrame::Create(m_parent, -1, title,
  68                    wxPoint(0, 0), wxSize(220, height),
  69                    wxDEFAULT_DIALOG_STYLE);
  70
  71    wxLayoutConstraints *c;
  72
  73    m_msg = new wxStaticText(this, -1, message);
  74    c = new wxLayoutConstraints;
  75    c->left.SameAs(this, wxLeft, 10);
  76    c->top.SameAs(this, wxTop, 10);
  77    c->width.AsIs();
  78    c->height.AsIs();
  79    m_msg->SetConstraints(c);
  80
  81    if ( maximum > 0 )
  82    {
  83       m_gauge = new wxGauge(this, -1, maximum);
  84       c = new wxLayoutConstraints;
  85       c->left.SameAs(this, wxLeft, 2*LAYOUT_X_MARGIN);
  86       c->top.Below(m_msg, 2*LAYOUT_Y_MARGIN);
  87       c->right.SameAs(this, wxRight, 2*LAYOUT_X_MARGIN);
  88       c->height.AsIs();
  89       m_gauge->SetConstraints(c);
  90       m_gauge->SetValue(0);
  91    }
  92    else
  93       m_gauge = (wxGauge *)NULL;
  94
  95    if ( hasAbortButton )
  96    {
  97       m_btnAbort = new wxButton(this, -1, _("Cancel"));
  98       c = new wxLayoutConstraints;
  99       c->centreX.SameAs(this, wxCentreX);
 100       if(m_gauge)
 101          c->top.Below(m_gauge, 2*LAYOUT_Y_MARGIN);
 102       else
 103          c->top.Below(m_btnAbort, 2*LAYOUT_Y_MARGIN);
 104       c->width.AsIs();
 105       c->height.AsIs();
 106       m_btnAbort->SetConstraints(c);
 107    }
 108    else
 109       m_btnAbort = (wxButton *)NULL;
 110
 111    SetAutoLayout(TRUE);
 112    Show(TRUE);
 113    Centre(wxCENTER_FRAME | wxBOTH);
 114
 115    if(m_disableParentOnly)
 116       m_parent->Enable(FALSE);
 117    else
 118       wxEnableTopLevelWindows(FALSE);
 119    Enable(TRUE); // enable this window
 120    wxYield();
 121 }
 122
 123
 124 bool
 125 wxProgressDialog::Update(int value, const wxString& newmsg)
 126 {
 127    wxASSERT_MSG( value == -1 || m_gauge, _T("can't update non existent dialog") );
 128    wxASSERT_MSG( value < m_maximum, _T("invalid progress value") );
 129
 130    if( m_gauge )
 131       m_gauge->SetValue(value + 1);
 132    if( !newmsg.IsEmpty() )
 133       m_msg->SetLabel(newmsg);
 134    wxYield();
 135
 136    if ( (value == m_maximum - 1) && !(GetWindowStyleFlag() & wxPD_AUTO_HIDE) )
 137    {
 138        if ( m_btnAbort )
 139        {
 140            // tell the user what he should do...
 141            m_btnAbort->SetLabel(_("Close"));
 142        }
 143
 144        if ( !newmsg )
 145        {
 146            // also provide the finishing message if the application didn't
 147            m_msg->SetLabel(_("Done."));
 148        }
 149
 150        m_state = Finished;
 151        while ( m_state != Canceled ) // set from OnClose()
 152            wxYield();
 153
 154        // so that we return TRUE below
 155        m_state = Finished;
 156    }
 157
 158    return m_state != Canceled;
 159 }
 160
 161 void wxProgressDialog::OnClose(wxCloseEvent& event)
 162 {
 163    if ( m_state == Uncancelable )
 164       event.Veto(TRUE);
 165    else
 166       m_state = Canceled;
 167 }
 168
 169
 170 wxProgressDialog::~wxProgressDialog()
 171 {
 172    if ( m_disableParentOnly )
 173       m_parent->Enable(TRUE);
 174    else
 175       wxEnableTopLevelWindows(TRUE);
 176 }
 177
 178 #endif