src/gtk1/gauge.cpp

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