src/gtk/spinbutt.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        spinbutt.cpp
   3 // Purpose:     wxSpinButton
   4 // Author:      Robert
   5 // Modified by:
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) Robert Roebling
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "spinbutt.h"
  13 #endif
  14
  15 #include "wx/spinbutt.h"
  16 #include "wx/utils.h"
  17
  18 //-----------------------------------------------------------------------------
  19 // data
  20 //-----------------------------------------------------------------------------
  21
  22 extern bool   g_blockEventsOnDrag;
  23
  24 //-----------------------------------------------------------------------------
  25 // "value_changed"
  26 //-----------------------------------------------------------------------------
  27
  28 static void gtk_spinbutt_callback( GtkWidget *WXUNUSED(widget), wxSpinButton *win )
  29 {
  30   if (!win->HasVMT()) return;
  31   if (g_blockEventsOnDrag) return;
  32
  33   float diff = win->m_adjust->value - win->m_oldPos;
  34   if (fabs(diff) < 0.2) return;
  35
  36   wxEventType command = wxEVT_NULL;
  37
  38   float line_step = win->m_adjust->step_increment;
  39   float page_step = win->m_adjust->page_increment;
  40
  41   if (fabs(diff-line_step) < 0.2) command = wxEVT_SCROLL_LINEDOWN;
  42   else if (fabs(diff+line_step) < 0.2) command = wxEVT_SCROLL_LINEUP;
  43   else if (fabs(diff-page_step) < 0.2) command = wxEVT_SCROLL_PAGEDOWN;
  44   else if (fabs(diff+page_step) < 0.2) command = wxEVT_SCROLL_PAGEUP;
  45   else command = wxEVT_SCROLL_THUMBTRACK;
  46
  47   int value = (int)(win->m_adjust->value+0.5);
  48
  49   wxSpinEvent event( command, win->GetId());
  50   event.SetPosition( value );
  51   event.SetOrientation( wxVERTICAL );
  52   event.SetEventObject( win );
  53
  54   win->ProcessEvent( event );
  55 }
  56
  57 //-----------------------------------------------------------------------------
  58 // wxSpinButton
  59 //-----------------------------------------------------------------------------
  60
  61 IMPLEMENT_DYNAMIC_CLASS(wxSpinButton,wxControl)
  62
  63 BEGIN_EVENT_TABLE(wxSpinButton, wxControl)
  64     EVT_SIZE(wxSpinButton::OnSize)
  65 END_EVENT_TABLE()
  66
  67 wxSpinButton::wxSpinButton()
  68 {
  69 }
  70
  71 bool wxSpinButton::Create(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size,
  72             long style, const wxString& name)
  73 {
  74   m_needParent = TRUE;
  75
  76   wxSize new_size = size;
  77   new_size.x = 16;
  78   if (new_size.y == -1) new_size.y = 30;
  79
  80   PreCreation( parent, id, pos, new_size, style, name );
  81
  82 //  SetValidator( validator );
  83
  84   m_oldPos = 0.0;
  85
  86   m_adjust = (GtkAdjustment*) gtk_adjustment_new( 0.0, 0.0, 100.0, 1.0, 5.0, 0.0);
  87
  88   m_widget = gtk_spin_button_new( m_adjust, 0, 0 );
  89
  90   gtk_spin_button_set_wrap( GTK_SPIN_BUTTON(m_widget), (m_windowStyle & wxSP_WRAP) );
  91
  92   gtk_signal_connect (GTK_OBJECT (m_adjust), "value_changed",
  93                       (GtkSignalFunc) gtk_spinbutt_callback, (gpointer) this );
  94
  95   m_parent->AddChild( this );
  96
  97   (m_parent->m_insertCallback)( m_parent, this );
  98
  99   PostCreation();
 100
 101   SetBackgroundColour( parent->GetBackgroundColour() );
 102
 103   Show( TRUE );
 104
 105   return TRUE;
 106 }
 107
 108 wxSpinButton::~wxSpinButton()
 109 {
 110 }
 111
 112 int wxSpinButton::GetMin() const
 113 {
 114   wxCHECK_MSG( (m_widget != NULL), 0, "invalid spin button" );
 115
 116   return (int)(m_adjust->lower+0.5);
 117 }
 118
 119 int wxSpinButton::GetMax() const
 120 {
 121   wxCHECK_MSG( (m_widget != NULL), 0, "invalid spin button" );
 122
 123   return (int)(m_adjust->upper+0.5);
 124 }
 125
 126 int wxSpinButton::GetValue() const
 127 {
 128   wxCHECK_MSG( (m_widget != NULL), 0, "invalid spin button" );
 129
 130   return (int)(m_adjust->value+0.5);
 131 }
 132
 133 void wxSpinButton::SetValue( int value )
 134 {
 135   wxCHECK_RET( (m_widget != NULL), "invalid spin button" );
 136
 137   float fpos = (float)value;
 138   m_oldPos = fpos;
 139   if (fabs(fpos-m_adjust->value) < 0.2) return;
 140   m_adjust->value = fpos;
 141
 142   gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" );
 143 }
 144
 145 void wxSpinButton::SetRange(int minVal, int maxVal)
 146 {
 147   wxCHECK_RET( (m_widget != NULL), "invalid spin button" );
 148
 149   float fmin = (float)minVal;
 150   float fmax = (float)maxVal;
 151
 152   if ((fabs(fmin-m_adjust->lower) < 0.2) &&
 153       (fabs(fmax-m_adjust->upper) < 0.2))
 154       return;
 155
 156   m_adjust->lower = fmin;
 157   m_adjust->upper = fmax;
 158
 159   gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" );
 160 }
 161
 162 void wxSpinButton::OnSize( wxSizeEvent &WXUNUSED(event) )
 163 {
 164   wxCHECK_RET( (m_widget != NULL), "invalid spin button" );
 165
 166   m_width = 16;
 167   gtk_widget_set_usize( m_widget, m_width, m_height );
 168 }
 169
 170 bool wxSpinButton::IsOwnGtkWindow( GdkWindow *window )
 171 {
 172   return GTK_SPIN_BUTTON(m_widget)->panel == window;
 173 }
 174
 175 void wxSpinButton::ApplyWidgetStyle()
 176 {
 177   SetWidgetStyle();
 178   gtk_widget_set_style( m_widget, m_widgetStyle );
 179 }
 180
 181 //-----------------------------------------------------------------------------
 182 // wxSpinEvent
 183 //-----------------------------------------------------------------------------
 184
 185 IMPLEMENT_DYNAMIC_CLASS(wxSpinEvent, wxScrollEvent)
 186
 187 wxSpinEvent::wxSpinEvent(wxEventType commandType, int id):
 188   wxScrollEvent(commandType, id)
 189 {
 190 }
 191
 192