src/gtk/gauge.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/gauge.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #if wxUSE_GAUGE
  14
  15 #include "wx/gauge.h"
  16
  17 #include <gtk/gtk.h>
  18
  19 //-----------------------------------------------------------------------------
  20 // wxGauge
  21 //-----------------------------------------------------------------------------
  22
  23 IMPLEMENT_DYNAMIC_CLASS(wxGauge, wxControl)
  24
  25 bool wxGauge::Create( wxWindow *parent,
  26                       wxWindowID id,
  27                       int range,
  28                       const wxPoint& pos,
  29                       const wxSize& size,
  30                       long style,
  31                       const wxValidator& validator,
  32                       const wxString& name )
  33 {
  34     if (!PreCreation( parent, pos, size ) ||
  35         !CreateBase( parent, id, pos, size, style, validator, name ))
  36     {
  37         wxFAIL_MSG( wxT("wxGauge creation failed") );
  38         return false;
  39     }
  40
  41     m_rangeMax = range;
  42
  43     m_widget = gtk_progress_bar_new();
  44     if ( style & wxGA_VERTICAL )
  45     {
  46         gtk_progress_bar_set_orientation( GTK_PROGRESS_BAR(m_widget),
  47                                           GTK_PROGRESS_BOTTOM_TO_TOP );
  48     }
  49
  50     // when using the gauge in indeterminate mode, we need this:
  51     gtk_progress_bar_set_pulse_step(GTK_PROGRESS_BAR (m_widget), 0.05);
  52
  53     m_parent->DoAddChild( this );
  54
  55     PostCreation(size);
  56     SetInitialSize(size);
  57
  58     return true;
  59 }
  60
  61 void wxGauge::DoSetGauge()
  62 {
  63     wxASSERT_MSG( 0 <= m_gaugePos && m_gaugePos <= m_rangeMax,
  64                   _T("invalid gauge position in DoSetGauge()") );
  65
  66     gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (m_widget),
  67                                    m_rangeMax ? ((double)m_gaugePos)/m_rangeMax : 0.0);
  68 }
  69
  70 wxSize wxGauge::DoGetBestSize() const
  71 {
  72     wxSize best;
  73     if (HasFlag(wxGA_VERTICAL))
  74         best = wxSize(28, 100);
  75     else
  76         best = wxSize(100, 28);
  77     CacheBestSize(best);
  78     return best;
  79 }
  80
  81 void wxGauge::SetRange( int range )
  82 {
  83     m_rangeMax = range;
  84     if (m_gaugePos > m_rangeMax)
  85         m_gaugePos = m_rangeMax;
  86
  87     DoSetGauge();
  88 }
  89
  90 void wxGauge::SetValue( int pos )
  91 {
  92     wxCHECK_RET( pos <= m_rangeMax, _T("invalid value in wxGauge::SetValue()") );
  93
  94     m_gaugePos = pos;
  95
  96     DoSetGauge();
  97 }
  98
  99 int wxGauge::GetRange() const
 100 {
 101     return m_rangeMax;
 102 }
 103
 104 int wxGauge::GetValue() const
 105 {
 106     return m_gaugePos;
 107 }
 108
 109 void wxGauge::Pulse()
 110 {
 111     gtk_progress_bar_pulse(GTK_PROGRESS_BAR (m_widget));
 112 }
 113
 114 wxVisualAttributes wxGauge::GetDefaultAttributes() const
 115 {
 116     // Visible gauge colours use a different colour state
 117     return GetDefaultAttributesFromGTKWidget(m_widget,
 118                                              UseGTKStyleBase(),
 119                                              GTK_STATE_ACTIVE);
 120
 121 }
 122
 123 // static
 124 wxVisualAttributes
 125 wxGauge::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 126 {
 127     return GetDefaultAttributesFromGTKWidget(gtk_progress_bar_new,
 128                                              false, GTK_STATE_ACTIVE);
 129 }
 130
 131 #endif // wxUSE_GAUGE