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 #include <math.h>
  18
  19 //-----------------------------------------------------------------------------
  20 // data
  21 //-----------------------------------------------------------------------------
  22
  23 extern bool   g_blockEventsOnDrag;
  24
  25 //-----------------------------------------------------------------------------
  26 // "value_changed"
  27 //-----------------------------------------------------------------------------
  28
  29 static void gtk_spinbutt_callback( GtkWidget *WXUNUSED(widget), wxSpinButton *win )
  30 {
  31   if (!win->HasVMT()) return;
  32   if (g_blockEventsOnDrag) return;
  33
  34   float diff = win->m_adjust->value - win->m_oldPos;
  35   if (fabs(diff) < 0.2) return;
  36
  37   wxEventType command = wxEVT_NULL;
  38
  39   float line_step = win->m_adjust->step_increment;
  40   float page_step = win->m_adjust->page_increment;
  41
  42   if (fabs(diff-line_step) < 0.2) command = wxEVT_SCROLL_LINEDOWN;
  43   else if (fabs(diff+line_step) < 0.2) command = wxEVT_SCROLL_LINEUP;
  44   else if (fabs(diff-page_step) < 0.2) command = wxEVT_SCROLL_PAGEDOWN;
  45   else if (fabs(diff+page_step) < 0.2) command = wxEVT_SCROLL_PAGEUP;
  46   else command = wxEVT_SCROLL_THUMBTRACK;
  47
  48   int value = (int)(win->m_adjust->value+0.5);
  49
  50   wxSpinEvent event( command, win->GetId());
  51   event.SetPosition( value );
  52   event.SetOrientation( wxVERTICAL );
  53   event.SetEventObject( win );
  54
  55   win->ProcessEvent( event );
  56 }
  57
  58 //-----------------------------------------------------------------------------
  59 // wxSpinButton
  60 //-----------------------------------------------------------------------------
  61
  62 IMPLEMENT_DYNAMIC_CLASS(wxSpinButton,wxControl)
  63
  64 BEGIN_EVENT_TABLE(wxSpinButton, wxControl)
  65     EVT_SIZE(wxSpinButton::OnSize)
  66 END_EVENT_TABLE()
  67
  68 wxSpinButton::wxSpinButton()
  69 {
  70 }
  71
  72 bool wxSpinButton::Create(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size,
  73             long style, const wxString& name)
  74 {
  75   m_needParent = TRUE;
  76
  77   wxSize new_size = size;
  78   new_size.x = 16;
  79   if (new_size.y == -1) new_size.y = 30;
  80
  81   PreCreation( parent, id, pos, new_size, style, name );
  82
  83 //  SetValidator( validator );
  84
  85   m_oldPos = 0.0;
  86
  87   m_adjust = (GtkAdjustment*) gtk_adjustment_new( 0.0, 0.0, 100.0, 1.0, 5.0, 0.0);
  88
  89   m_widget = gtk_spin_button_new( m_adjust, 0, 0 );
  90
  91   gtk_spin_button_set_wrap( GTK_SPIN_BUTTON(m_widget), (m_windowStyle & wxSP_WRAP) );
  92
  93   gtk_signal_connect (GTK_OBJECT (m_adjust), "value_changed",
  94                       (GtkSignalFunc) gtk_spinbutt_callback, (gpointer) this );
  95
  96   m_parent->AddChild( this );
  97
  98   (m_parent->m_insertCallback)( m_parent, this );
  99
 100   PostCreation();
 101
 102   SetBackgroundColour( parent->GetBackgroundColour() );
 103
 104   Show( TRUE );
 105
 106   return TRUE;
 107 }
 108
 109 wxSpinButton::~wxSpinButton()
 110 {
 111 }
 112
 113 int wxSpinButton::GetMin() const
 114 {
 115   wxCHECK_MSG( (m_widget != NULL), 0, "invalid spin button" );
 116
 117   return (int)(m_adjust->lower+0.5);
 118 }
 119
 120 int wxSpinButton::GetMax() const
 121 {
 122   wxCHECK_MSG( (m_widget != NULL), 0, "invalid spin button" );
 123
 124   return (int)(m_adjust->upper+0.5);
 125 }
 126
 127 int wxSpinButton::GetValue() const
 128 {
 129   wxCHECK_MSG( (m_widget != NULL), 0, "invalid spin button" );
 130
 131   return (int)(m_adjust->value+0.5);
 132 }
 133
 134 void wxSpinButton::SetValue( int value )
 135 {
 136   wxCHECK_RET( (m_widget != NULL), "invalid spin button" );
 137
 138   float fpos = (float)value;
 139   m_oldPos = fpos;
 140   if (fabs(fpos-m_adjust->value) < 0.2) return;
 141   m_adjust->value = fpos;
 142
 143   gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" );
 144 }
 145
 146 void wxSpinButton::SetRange(int minVal, int maxVal)
 147 {
 148   wxCHECK_RET( (m_widget != NULL), "invalid spin button" );
 149
 150   float fmin = (float)minVal;
 151   float fmax = (float)maxVal;
 152
 153   if ((fabs(fmin-m_adjust->lower) < 0.2) &&
 154       (fabs(fmax-m_adjust->upper) < 0.2))
 155       return;
 156
 157   m_adjust->lower = fmin;
 158   m_adjust->upper = fmax;
 159
 160   gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" );
 161 }
 162
 163 void wxSpinButton::OnSize( wxSizeEvent &WXUNUSED(event) )
 164 {
 165   wxCHECK_RET( (m_widget != NULL), "invalid spin button" );
 166
 167   m_width = 16;
 168   gtk_widget_set_usize( m_widget, m_width, m_height );
 169 }
 170
 171 bool wxSpinButton::IsOwnGtkWindow( GdkWindow *window )
 172 {
 173   return GTK_SPIN_BUTTON(m_widget)->panel == window;
 174 }
 175
 176 void wxSpinButton::ApplyWidgetStyle()
 177 {
 178   SetWidgetStyle();
 179   gtk_widget_set_style( m_widget, m_widgetStyle );
 180 }
 181
 182 //-----------------------------------------------------------------------------
 183 // wxSpinEvent
 184 //-----------------------------------------------------------------------------
 185
 186 IMPLEMENT_DYNAMIC_CLASS(wxSpinEvent, wxScrollEvent)
 187
 188 wxSpinEvent::wxSpinEvent(wxEventType commandType, int id):
 189   wxScrollEvent(commandType, id)
 190 {
 191 }
 192
 193