src/gtk1/gauge.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk1/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     m_needParent = true;
  32
  33     if (!PreCreation( parent, pos, size ) ||
  34         !CreateBase( parent, id, pos, size, style, validator, name ))
  35     {
  36         wxFAIL_MSG( wxT("wxGauge creation failed") );
  37         return false;
  38     }
  39
  40     m_rangeMax = range;
  41
  42     m_widget = gtk_progress_bar_new();
  43     if ( style & wxGA_VERTICAL )
  44     {
  45         gtk_progress_bar_set_orientation( GTK_PROGRESS_BAR(m_widget),
  46                                           GTK_PROGRESS_BOTTOM_TO_TOP );
  47     }
  48
  49     m_parent->DoAddChild( this );
  50
  51     PostCreation(size);
  52     SetInitialSize(size);
  53
  54     return true;
  55 }
  56
  57 void wxGauge::DoSetGauge()
  58 {
  59     wxASSERT_MSG( 0 <= m_gaugePos && m_gaugePos <= m_rangeMax,
  60                   wxT("invalid gauge position in DoSetGauge()") );
  61
  62     gtk_progress_bar_update( GTK_PROGRESS_BAR(m_widget),
  63                              m_rangeMax ? ((float)m_gaugePos)/m_rangeMax : 0.);
  64 }
  65
  66 wxSize wxGauge::DoGetBestSize() const
  67 {
  68     wxSize best;
  69     if (HasFlag(wxGA_VERTICAL))
  70         best = wxSize(28, 100);
  71     else
  72         best = wxSize(100, 28);
  73     CacheBestSize(best);
  74     return best;
  75 }
  76
  77 void wxGauge::SetRange( int range )
  78 {
  79     m_rangeMax = range;
  80     if (m_gaugePos > m_rangeMax)
  81         m_gaugePos = m_rangeMax;
  82
  83     DoSetGauge();
  84 }
  85
  86 void wxGauge::SetValue( int pos )
  87 {
  88     wxCHECK_RET( pos <= m_rangeMax, wxT("invalid value in wxGauge::SetValue()") );
  89
  90     m_gaugePos = pos;
  91
  92     DoSetGauge();
  93 }
  94
  95 int wxGauge::GetRange() const
  96 {
  97     return m_rangeMax;
  98 }
  99
 100 int wxGauge::GetValue() const
 101 {
 102     return m_gaugePos;
 103 }
 104
 105 wxVisualAttributes wxGauge::GetDefaultAttributes() const
 106 {
 107     // Visible gauge colours use a different colour state
 108     return GetDefaultAttributesFromGTKWidget(m_widget,
 109                                              UseGTKStyleBase(),
 110                                              GTK_STATE_ACTIVE);
 111
 112 }
 113
 114 // static
 115 wxVisualAttributes
 116 wxGauge::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 117 {
 118     return GetDefaultAttributesFromGTKWidget(gtk_progress_bar_new,
 119                                              false, GTK_STATE_ACTIVE);
 120 }
 121
 122 #endif // wxUSE_GAUGE