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     #include "wx/settings.h"
  33 #endif
  34
  35 #if wxUSE_PROGRESSDLG
  36
  37 #include "wx/generic/progdlgg.h"
  38
  39 #define LAYOUT_X_MARGIN 8
  40 #define LAYOUT_Y_MARGIN 8
  41
  42 // wxTextEntryDialog
  43
  44 #if !USE_SHARED_LIBRARY
  45     BEGIN_EVENT_TABLE(wxProgressDialog, wxFrame)
  46        EVT_BUTTON(-1, wxProgressDialog::OnCancel)
  47        EVT_CLOSE(wxProgressDialog::OnClose)
  48     END_EVENT_TABLE()
  49
  50     IMPLEMENT_CLASS(wxProgressDialog, wxFrame)
  51 #endif
  52
  53 wxProgressDialog::wxProgressDialog(wxString const &title,
  54                                  wxString const &message,
  55                                  int maximum,
  56                                  wxWindow *parent,
  57                                  int style)
  58 {
  59    bool hasAbortButton = (style & wxPD_CAN_ABORT) != 0;
  60    m_state = hasAbortButton ? Continue : Uncancelable;
  61    m_disableParentOnly = (style & wxPD_APP_MODAL) == 0;
  62    m_parent = parent;
  63    m_maximum = maximum;
  64
  65    wxFrame::Create(m_parent, -1, title, wxDefaultPosition,
  66                    wxDefaultSize, wxDEFAULT_DIALOG_STYLE);
  67    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
  68
  69    wxLayoutConstraints *c;
  70
  71    wxClientDC dc(this);
  72    dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
  73    long widthText;
  74    dc.GetTextExtent(message, &widthText, NULL);
  75
  76    m_msg = new wxStaticText(this, -1, message);
  77    c = new wxLayoutConstraints;
  78    c->left.SameAs(this, wxLeft, 10);
  79    c->top.SameAs(this, wxTop, 10);
  80    c->width.AsIs();
  81    c->height.AsIs();
  82    m_msg->SetConstraints(c);
  83
  84    if ( maximum > 0 )
  85    {
  86       m_gauge = new wxGauge(this, -1, maximum,
  87                             wxDefaultPosition, wxDefaultSize,
  88                             wxGA_HORIZONTAL | wxRAISED_BORDER);
  89       c = new wxLayoutConstraints;
  90       c->left.SameAs(this, wxLeft, 2*LAYOUT_X_MARGIN);
  91       c->top.Below(m_msg, 2*LAYOUT_Y_MARGIN);
  92       c->right.SameAs(this, wxRight, 2*LAYOUT_X_MARGIN);
  93       c->height.AsIs();
  94       m_gauge->SetConstraints(c);
  95       m_gauge->SetValue(0);
  96    }
  97    else
  98       m_gauge = (wxGauge *)NULL;
  99
 100    if ( hasAbortButton )
 101    {
 102       m_btnAbort = new wxButton(this, -1, _("Cancel"));
 103       c = new wxLayoutConstraints;
 104       c->centreX.SameAs(this, wxCentreX);
 105       if(m_gauge)
 106          c->top.Below(m_gauge, 2*LAYOUT_Y_MARGIN);
 107       else
 108          c->top.Below(m_btnAbort, 2*LAYOUT_Y_MARGIN);
 109       c->width.AsIs();
 110       c->height.AsIs();
 111       m_btnAbort->SetConstraints(c);
 112    }
 113    else
 114       m_btnAbort = (wxButton *)NULL;
 115
 116    SetAutoLayout(TRUE);
 117    Layout();
 118
 119    // calc the height of the dialog
 120    Fit();
 121    // and set the width from it - unfortunately, Fit() makes the dialog way too
 122    // wide under Windows, so try to find a reasonable value for the width, not
 123    // too big and not too small
 124    wxSize size = GetClientSize();
 125    size.x = 2*widthText;
 126    if ( size.x < 2*size.y )
 127       SetClientSize(2*size.y, size.y);
 128
 129    Show(TRUE);
 130    Centre(wxCENTER_FRAME | wxBOTH);
 131
 132    if(m_disableParentOnly)
 133       m_parent->Enable(FALSE);
 134    else
 135       wxEnableTopLevelWindows(FALSE);
 136
 137    Enable(TRUE); // enable this window
 138    wxYield();
 139 }
 140
 141
 142 bool
 143 wxProgressDialog::Update(int value, const wxString& newmsg)
 144 {
 145    wxASSERT_MSG( value == -1 || m_gauge, _T("can't update non existent dialog") );
 146    wxASSERT_MSG( value < m_maximum, _T("invalid progress value") );
 147
 148
 149    if( m_gauge )
 150       m_gauge->SetValue(value + 1);
 151
 152    if( !newmsg.IsEmpty() )
 153       m_msg->SetLabel(newmsg);
 154
 155    if ( (value == m_maximum - 1) && !(GetWindowStyleFlag() & wxPD_AUTO_HIDE) )
 156    {
 157        if ( m_btnAbort )
 158        {
 159            // tell the user what he should do...
 160            m_btnAbort->SetLabel(_("Close"));
 161        }
 162
 163        if ( !newmsg )
 164        {
 165            // also provide the finishing message if the application didn't
 166            m_msg->SetLabel(_("Done."));
 167        }
 168
 169        m_state = Finished;
 170
 171        // so that we return TRUE below
 172        m_state = Finished;
 173    }
 174
 175    return m_state != Canceled;
 176 }
 177
 178 void wxProgressDialog::OnClose(wxCloseEvent& event)
 179 {
 180    if ( m_state == Uncancelable )
 181       event.Veto(TRUE);
 182    else
 183       m_state = Canceled;
 184 }
 185
 186
 187 wxProgressDialog::~wxProgressDialog()
 188 {
 189    if ( m_disableParentOnly )
 190       m_parent->Enable(TRUE);
 191    else
 192       wxEnableTopLevelWindows(TRUE);
 193 }
 194
 195 #endif