src/gtk/gauge.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        gauge.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "gauge.h"
  12 #endif
  13
  14 #include "wx/gauge.h"
  15
  16 #if wxUSE_GAUGE
  17
  18 #include <gtk/gtk.h>
  19
  20 //-----------------------------------------------------------------------------
  21 // wxGauge
  22 //-----------------------------------------------------------------------------
  23
  24 IMPLEMENT_DYNAMIC_CLASS(wxGauge, wxControl)
  25
  26 bool wxGauge::Create( wxWindow *parent,
  27                       wxWindowID id,
  28                       int range,
  29                       const wxPoint& pos,
  30                       const wxSize& size,
  31                       long style,
  32                       const wxValidator& validator,
  33                       const wxString& name )
  34 {
  35     m_needParent = TRUE;
  36
  37     if (!PreCreation( parent, pos, size ) ||
  38         !CreateBase( parent, id, pos, size, style, validator, name ))
  39     {
  40         wxFAIL_MSG( wxT("wxGauge creation failed") );
  41         return FALSE;
  42     }
  43
  44     m_rangeMax = range;
  45
  46     m_widget = gtk_progress_bar_new();
  47     if ( style & wxGA_VERTICAL )
  48     {
  49         gtk_progress_bar_set_orientation( GTK_PROGRESS_BAR(m_widget),
  50                                           GTK_PROGRESS_BOTTOM_TO_TOP );
  51     }
  52
  53     m_parent->DoAddChild( this );
  54
  55     PostCreation();
  56
  57     Show( TRUE );
  58
  59     return TRUE;
  60 }
  61
  62 void wxGauge::DoSetGauge()
  63 {
  64     wxASSERT_MSG( 0 <= m_gaugePos && m_gaugePos <= m_rangeMax,
  65                   _T("invalid gauge position in DoSetGauge()") );
  66
  67     gtk_progress_bar_update( GTK_PROGRESS_BAR(m_widget),
  68                              m_rangeMax ? ((float)m_gaugePos)/m_rangeMax : 0.);
  69 }
  70
  71 void wxGauge::SetRange( int range )
  72 {
  73     m_rangeMax = range;
  74     if (m_gaugePos > m_rangeMax)
  75         m_gaugePos = m_rangeMax;
  76
  77     DoSetGauge();
  78 }
  79
  80 void wxGauge::SetValue( int pos )
  81 {
  82     wxCHECK_RET( pos <= m_rangeMax, _T("invalid value in wxGauge::SetValue()") );
  83
  84     m_gaugePos = pos;
  85
  86     DoSetGauge();
  87 }
  88
  89 int wxGauge::GetRange() const
  90 {
  91     return m_rangeMax;
  92 }
  93
  94 int wxGauge::GetValue() const
  95 {
  96     return m_gaugePos;
  97 }
  98
  99 void wxGauge::ApplyWidgetStyle()
 100 {
 101     SetWidgetStyle();
 102     gtk_widget_set_style( m_widget, m_widgetStyle );
 103 }
 104
 105 #endif // wxUSE_GAUGE
 106