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 #include "wx/generic/progdlgg.h"
  35
  36 #define LAYOUT_X_MARGIN 8
  37 #define LAYOUT_Y_MARGIN 8
  38
  39 // wxTextEntryDialog
  40
  41 #if !USE_SHARED_LIBRARY
  42     BEGIN_EVENT_TABLE(wxProgressDialog, wxFrame)
  43        EVT_BUTTON(-1, wxProgressDialog::OnCancel)
  44        EVT_CLOSE(wxProgressDialog::OnClose)
  45     END_EVENT_TABLE()
  46
  47     IMPLEMENT_CLASS(wxProgressDialog, wxFrame)
  48 #endif
  49
  50 wxProgressDialog::wxProgressDialog(wxString const &title,
  51                                  wxString const &message,
  52                                  int maximum,
  53                                  wxWindow *parent,
  54                                  int style)
  55 {
  56    bool hasAbortButton = (style & wxPD_CAN_ABORT) != 0;
  57    m_state = hasAbortButton ? Continue : Uncancelable;
  58    m_disableParentOnly = (style & wxPD_APP_MODAL) == 0;
  59    m_parent = parent;
  60
  61    int height = 70;     // FIXME arbitrary numbers
  62    if ( hasAbortButton )
  63       height += 35;
  64    wxFrame::Create(m_parent, -1, title,
  65                    wxPoint(0, 0), wxSize(220, height),
  66                    wxDEFAULT_DIALOG_STYLE);
  67
  68    wxLayoutConstraints *c;
  69
  70    m_msg = new wxStaticText(this, -1, message);
  71    c = new wxLayoutConstraints;
  72    c->left.SameAs(this, wxLeft, 10);
  73    c->top.SameAs(this, wxTop, 10);
  74    c->width.AsIs();
  75    c->height.AsIs();
  76    m_msg->SetConstraints(c);
  77
  78    if ( maximum > 0 )
  79    {
  80       m_gauge = new wxGauge(this, -1, maximum);
  81       c = new wxLayoutConstraints;
  82       c->left.SameAs(this, wxLeft, 2*LAYOUT_X_MARGIN);
  83       c->top.Below(m_msg, 2*LAYOUT_Y_MARGIN);
  84       c->right.SameAs(this, wxRight, 2*LAYOUT_X_MARGIN);
  85       c->height.AsIs();
  86       m_gauge->SetConstraints(c);
  87       m_gauge->SetValue(0);
  88    }
  89    else
  90       m_gauge = NULL;
  91
  92    if ( hasAbortButton )
  93    {
  94       wxControl *ctrl = new wxButton(this, -1, _("Cancel"));
  95       c = new wxLayoutConstraints;
  96       c->centreX.SameAs(this, wxCentreX);
  97       if(m_gauge)
  98          c->top.Below(m_gauge, 2*LAYOUT_Y_MARGIN);
  99       else
 100          c->top.Below(ctrl, 2*LAYOUT_Y_MARGIN);
 101       c->width.AsIs();
 102       c->height.AsIs();
 103       ctrl->SetConstraints(c);
 104    }
 105
 106    SetAutoLayout(TRUE);
 107    Show(TRUE);
 108    Centre(wxCENTER_FRAME | wxBOTH);
 109
 110    if(m_disableParentOnly)
 111       m_parent->Enable(FALSE);
 112    else
 113       wxEnableTopLevelWindows(FALSE);
 114    Enable(TRUE); // enable this window
 115    wxYield();
 116 }
 117
 118
 119 bool
 120 wxProgressDialog::Update(int value, const wxString& newmsg)
 121 {
 122    wxASSERT_MSG( value == -1 || m_gauge, "can't update non existent dialog" );
 123
 124    if( m_gauge )
 125       m_gauge->SetValue(value);
 126    if( !newmsg.IsNull() )
 127       m_msg->SetLabel(newmsg);
 128    wxYield();
 129
 130    return m_state != Canceled;
 131 }
 132
 133 void wxProgressDialog::OnClose(wxCloseEvent& event)
 134 {
 135    if ( m_state == Uncancelable )
 136       event.Veto(TRUE);
 137    else
 138       m_state = Canceled;
 139 }
 140
 141
 142 wxProgressDialog::~wxProgressDialog()
 143 {
 144    if ( m_disableParentOnly )
 145       m_parent->Enable(TRUE);
 146    else
 147       wxEnableTopLevelWindows(TRUE);
 148 }