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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  11 #pragma implementation "gauge.h"
  12 #endif
  13
  14 // For compilers that support precompilation, includes "wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #include "wx/gauge.h"
  18
  19 #if wxUSE_GAUGE
  20
  21 #include <gtk/gtk.h>
  22
  23 //-----------------------------------------------------------------------------
  24 // wxGauge
  25 //-----------------------------------------------------------------------------
  26
  27 IMPLEMENT_DYNAMIC_CLASS(wxGauge, wxControl)
  28
  29 bool wxGauge::Create( wxWindow *parent,
  30                       wxWindowID id,
  31                       int range,
  32                       const wxPoint& pos,
  33                       const wxSize& size,
  34                       long style,
  35                       const wxValidator& validator,
  36                       const wxString& name )
  37 {
  38     m_needParent = TRUE;
  39
  40     if (!PreCreation( parent, pos, size ) ||
  41         !CreateBase( parent, id, pos, size, style, validator, name ))
  42     {
  43         wxFAIL_MSG( wxT("wxGauge creation failed") );
  44         return FALSE;
  45     }
  46
  47     m_rangeMax = range;
  48
  49     m_widget = gtk_progress_bar_new();
  50     if ( style & wxGA_VERTICAL )
  51     {
  52         gtk_progress_bar_set_orientation( GTK_PROGRESS_BAR(m_widget),
  53                                           GTK_PROGRESS_BOTTOM_TO_TOP );
  54     }
  55
  56     m_parent->DoAddChild( this );
  57
  58     PostCreation();
  59     SetBestSize(size);
  60
  61     Show( TRUE );
  62
  63     return TRUE;
  64 }
  65
  66 void wxGauge::DoSetGauge()
  67 {
  68     wxASSERT_MSG( 0 <= m_gaugePos && m_gaugePos <= m_rangeMax,
  69                   _T("invalid gauge position in DoSetGauge()") );
  70
  71     gtk_progress_bar_update( GTK_PROGRESS_BAR(m_widget),
  72                              m_rangeMax ? ((float)m_gaugePos)/m_rangeMax : 0.);
  73 }
  74
  75 wxSize wxGauge::DoGetBestSize() const
  76 {
  77     if (HasFlag(wxGA_HORIZONTAL))
  78         return wxSize(100, 28);
  79     else
  80         return wxSize(28, 100);
  81 }
  82
  83 void wxGauge::SetRange( int range )
  84 {
  85     m_rangeMax = range;
  86     if (m_gaugePos > m_rangeMax)
  87         m_gaugePos = m_rangeMax;
  88
  89     DoSetGauge();
  90 }
  91
  92 void wxGauge::SetValue( int pos )
  93 {
  94     wxCHECK_RET( pos <= m_rangeMax, _T("invalid value in wxGauge::SetValue()") );
  95
  96     m_gaugePos = pos;
  97
  98     DoSetGauge();
  99 }
 100
 101 int wxGauge::GetRange() const
 102 {
 103     return m_rangeMax;
 104 }
 105
 106 int wxGauge::GetValue() const
 107 {
 108     return m_gaugePos;
 109 }
 110
 111 void wxGauge::ApplyWidgetStyle()
 112 {
 113     SetWidgetStyle();
 114     gtk_widget_set_style( m_widget, m_widgetStyle );
 115 }
 116
 117 #endif // wxUSE_GAUGE
 118