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 bool wxGauge::Create( wxWindow *parent,
  24                       wxWindowID id,
  25                       int range,
  26                       const wxPoint& pos,
  27                       const wxSize& size,
  28                       long style,
  29                       const wxValidator& validator,
  30                       const wxString& name )
  31 {
  32     if (!PreCreation( parent, pos, size ) ||
  33         !CreateBase( parent, id, pos, size, style, validator, name ))
  34     {
  35         wxFAIL_MSG( wxT("wxGauge creation failed") );
  36         return false;
  37     }
  38
  39     m_rangeMax = range;
  40
  41     m_widget = gtk_progress_bar_new();
  42     g_object_ref(m_widget);
  43     if ( style & wxGA_VERTICAL )
  44     {
  45 #ifdef __WXGTK3__
  46         gtk_orientable_set_orientation(GTK_ORIENTABLE(m_widget), GTK_ORIENTATION_VERTICAL);
  47         gtk_progress_bar_set_inverted(GTK_PROGRESS_BAR(m_widget), true);
  48 #else
  49         gtk_progress_bar_set_orientation( GTK_PROGRESS_BAR(m_widget),
  50                                           GTK_PROGRESS_BOTTOM_TO_TOP );
  51 #endif
  52     }
  53
  54     // when using the gauge in indeterminate mode, we need this:
  55     gtk_progress_bar_set_pulse_step(GTK_PROGRESS_BAR (m_widget), 0.05);
  56
  57     m_parent->DoAddChild( this );
  58
  59     PostCreation(size);
  60     SetInitialSize(size);
  61
  62     return true;
  63 }
  64
  65 void wxGauge::DoSetGauge()
  66 {
  67     wxASSERT_MSG( 0 <= m_gaugePos && m_gaugePos <= m_rangeMax,
  68                   wxT("invalid gauge position in DoSetGauge()") );
  69
  70     gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (m_widget),
  71                                    m_rangeMax ? ((double)m_gaugePos)/m_rangeMax : 0.0);
  72 }
  73
  74 wxSize wxGauge::DoGetBestSize() const
  75 {
  76     wxSize best;
  77     if (HasFlag(wxGA_VERTICAL))
  78         best = wxSize(28, 100);
  79     else
  80         best = wxSize(100, 28);
  81     CacheBestSize(best);
  82     return best;
  83 }
  84
  85 void wxGauge::SetRange( int range )
  86 {
  87     m_rangeMax = range;
  88     if (m_gaugePos > m_rangeMax)
  89         m_gaugePos = m_rangeMax;
  90
  91     DoSetGauge();
  92 }
  93
  94 void wxGauge::SetValue( int pos )
  95 {
  96     wxCHECK_RET( pos <= m_rangeMax, wxT("invalid value in wxGauge::SetValue()") );
  97
  98     m_gaugePos = pos;
  99
 100     DoSetGauge();
 101 }
 102
 103 int wxGauge::GetRange() const
 104 {
 105     return m_rangeMax;
 106 }
 107
 108 int wxGauge::GetValue() const
 109 {
 110     return m_gaugePos;
 111 }
 112
 113 void wxGauge::Pulse()
 114 {
 115     gtk_progress_bar_pulse(GTK_PROGRESS_BAR (m_widget));
 116 }
 117
 118 wxVisualAttributes wxGauge::GetDefaultAttributes() const
 119 {
 120     // Visible gauge colours use a different colour state
 121     return GetDefaultAttributesFromGTKWidget(m_widget,
 122                                              UseGTKStyleBase(),
 123                                              GTK_STATE_ACTIVE);
 124
 125 }
 126
 127 // static
 128 wxVisualAttributes
 129 wxGauge::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 130 {
 131     return GetDefaultAttributesFromGTKWidget(gtk_progress_bar_new(),
 132                                              false, GTK_STATE_ACTIVE);
 133 }
 134
 135 #endif // wxUSE_GAUGE