src/gtk/gauge.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/gauge.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Copyright:   (c) 1998 Robert Roebling
   6 // Licence:     wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 // For compilers that support precompilation, includes "wx.h".
  10 #include "wx/wxprec.h"
  11
  12 #if wxUSE_GAUGE
  13
  14 #include "wx/gauge.h"
  15
  16 #include <gtk/gtk.h>
  17
  18 //-----------------------------------------------------------------------------
  19 // wxGauge
  20 //-----------------------------------------------------------------------------
  21
  22 bool wxGauge::Create( wxWindow *parent,
  23                       wxWindowID id,
  24                       int range,
  25                       const wxPoint& pos,
  26                       const wxSize& size,
  27                       long style,
  28                       const wxValidator& validator,
  29                       const wxString& name )
  30 {
  31     if (!PreCreation( parent, pos, size ) ||
  32         !CreateBase( parent, id, pos, size, style, validator, name ))
  33     {
  34         wxFAIL_MSG( wxT("wxGauge creation failed") );
  35         return false;
  36     }
  37
  38     m_rangeMax = range;
  39
  40     m_widget = gtk_progress_bar_new();
  41     g_object_ref(m_widget);
  42     if ( style & wxGA_VERTICAL )
  43     {
  44 #ifdef __WXGTK3__
  45         gtk_orientable_set_orientation(GTK_ORIENTABLE(m_widget), GTK_ORIENTATION_VERTICAL);
  46         gtk_progress_bar_set_inverted(GTK_PROGRESS_BAR(m_widget), true);
  47 #else
  48         gtk_progress_bar_set_orientation( GTK_PROGRESS_BAR(m_widget),
  49                                           GTK_PROGRESS_BOTTOM_TO_TOP );
  50 #endif
  51     }
  52
  53     // when using the gauge in indeterminate mode, we need this:
  54     gtk_progress_bar_set_pulse_step(GTK_PROGRESS_BAR (m_widget), 0.05);
  55
  56     m_parent->DoAddChild( this );
  57
  58     PostCreation(size);
  59     SetInitialSize(size);
  60
  61     return true;
  62 }
  63
  64 void wxGauge::DoSetGauge()
  65 {
  66     wxASSERT_MSG( 0 <= m_gaugePos && m_gaugePos <= m_rangeMax,
  67                   wxT("invalid gauge position in DoSetGauge()") );
  68
  69     gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (m_widget),
  70                                    m_rangeMax ? ((double)m_gaugePos)/m_rangeMax : 0.0);
  71 }
  72
  73 wxSize wxGauge::DoGetBestSize() const
  74 {
  75     wxSize best;
  76     if (HasFlag(wxGA_VERTICAL))
  77         best = wxSize(28, 100);
  78     else
  79         best = wxSize(100, 28);
  80     CacheBestSize(best);
  81     return best;
  82 }
  83
  84 void wxGauge::SetRange( int range )
  85 {
  86     m_rangeMax = range;
  87     if (m_gaugePos > m_rangeMax)
  88         m_gaugePos = m_rangeMax;
  89
  90     DoSetGauge();
  91 }
  92
  93 void wxGauge::SetValue( int pos )
  94 {
  95     wxCHECK_RET( pos <= m_rangeMax, wxT("invalid value in wxGauge::SetValue()") );
  96
  97     m_gaugePos = pos;
  98
  99     DoSetGauge();
 100 }
 101
 102 int wxGauge::GetRange() const
 103 {
 104     return m_rangeMax;
 105 }
 106
 107 int wxGauge::GetValue() const
 108 {
 109     return m_gaugePos;
 110 }
 111
 112 void wxGauge::Pulse()
 113 {
 114     gtk_progress_bar_pulse(GTK_PROGRESS_BAR (m_widget));
 115 }
 116
 117 wxVisualAttributes wxGauge::GetDefaultAttributes() const
 118 {
 119     // Visible gauge colours use a different colour state
 120     return GetDefaultAttributesFromGTKWidget(m_widget,
 121                                              UseGTKStyleBase(),
 122                                              GTK_STATE_ACTIVE);
 123
 124 }
 125
 126 // static
 127 wxVisualAttributes
 128 wxGauge::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 129 {
 130     return GetDefaultAttributesFromGTKWidget(gtk_progress_bar_new(),
 131                                              false, GTK_STATE_ACTIVE);
 132 }
 133
 134 #endif // wxUSE_GAUGE