src/gtk1/checkbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        checkbox.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "checkbox.h"
  13 #endif
  14
  15 #include "wx/checkbox.h"
  16
  17 #if wxUSE_CHECKBOX
  18
  19 #include "gdk/gdk.h"
  20 #include "gtk/gtk.h"
  21
  22 //-----------------------------------------------------------------------------
  23 // idle system
  24 //-----------------------------------------------------------------------------
  25
  26 extern void wxapp_install_idle_handler();
  27 extern bool g_isIdle;
  28
  29 //-----------------------------------------------------------------------------
  30 // data
  31 //-----------------------------------------------------------------------------
  32
  33 extern bool       g_blockEventsOnDrag;
  34 extern wxCursor   g_globalCursor;
  35
  36 //-----------------------------------------------------------------------------
  37 // "clicked"
  38 //-----------------------------------------------------------------------------
  39
  40 static void gtk_checkbox_clicked_callback( GtkWidget *WXUNUSED(widget), wxCheckBox *cb )
  41 {
  42     if (g_isIdle) wxapp_install_idle_handler();
  43
  44     if (!cb->m_hasVMT) return;
  45
  46     if (g_blockEventsOnDrag) return;
  47
  48     wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, cb->GetId());
  49     event.SetInt( cb->GetValue() );
  50     event.SetEventObject(cb);
  51     cb->GetEventHandler()->ProcessEvent(event);
  52 }
  53
  54 //-----------------------------------------------------------------------------
  55 // wxCheckBox
  56 //-----------------------------------------------------------------------------
  57
  58 IMPLEMENT_DYNAMIC_CLASS(wxCheckBox,wxControl)
  59
  60 wxCheckBox::wxCheckBox()
  61 {
  62 }
  63
  64 bool wxCheckBox::Create(wxWindow *parent,
  65                         wxWindowID id,
  66                         const wxString &label,
  67                         const wxPoint &pos,
  68                         const wxSize &size,
  69                         long style,
  70                         const wxValidator& validator,
  71                         const wxString &name )
  72 {
  73     m_needParent = TRUE;
  74     m_acceptsFocus = TRUE;
  75
  76     if (!PreCreation( parent, pos, size ) ||
  77         !CreateBase( parent, id, pos, size, style, validator, name ))
  78     {
  79         wxFAIL_MSG( wxT("wxCheckBox creation failed") );
  80         return FALSE;
  81     }
  82
  83     wxControl::SetLabel( label );
  84
  85     if ( style & wxALIGN_RIGHT )
  86     {
  87         // VZ: as I don't know a way to create a right aligned checkbox with
  88         //     GTK we will create a checkbox without label and a label at the
  89         //     left of it
  90         m_widgetCheckbox = gtk_check_button_new();
  91
  92         m_widgetLabel = gtk_label_new(m_label.mbc_str());
  93         gtk_misc_set_alignment(GTK_MISC(m_widgetLabel), 0.0, 0.5);
  94
  95         m_widget = gtk_hbox_new(FALSE, 0);
  96         gtk_box_pack_start(GTK_BOX(m_widget), m_widgetLabel, FALSE, FALSE, 3);
  97         gtk_box_pack_start(GTK_BOX(m_widget), m_widgetCheckbox, FALSE, FALSE, 3);
  98
  99         gtk_widget_show( m_widgetLabel );
 100         gtk_widget_show( m_widgetCheckbox );
 101     }
 102     else
 103     {
 104         m_widgetCheckbox = gtk_check_button_new_with_label( m_label.mbc_str() );
 105         m_widgetLabel = GTK_BUTTON( m_widgetCheckbox )->child;
 106         m_widget = m_widgetCheckbox;
 107     }
 108
 109     wxSize newSize(size);
 110     if (newSize.x == -1)
 111     {
 112         newSize.x = 25 + gdk_string_measure( m_widgetCheckbox->style->font,
 113                                              m_label.mbc_str() );
 114     }
 115     if (newSize.y == -1)
 116         newSize.y = 26;
 117
 118     SetSize( newSize.x, newSize.y );
 119
 120     gtk_signal_connect( GTK_OBJECT(m_widgetCheckbox),
 121                         "clicked",
 122                         GTK_SIGNAL_FUNC(gtk_checkbox_clicked_callback),
 123                         (gpointer *)this );
 124
 125     m_parent->DoAddChild( this );
 126
 127     PostCreation();
 128
 129     SetBackgroundColour( parent->GetBackgroundColour() );
 130     SetForegroundColour( parent->GetForegroundColour() );
 131     SetFont( parent->GetFont() );
 132
 133     Show( TRUE );
 134
 135     return TRUE;
 136 }
 137
 138 void wxCheckBox::SetValue( bool state )
 139 {
 140     wxCHECK_RET( m_widgetCheckbox != NULL, wxT("invalid checkbox") );
 141
 142     if (state == GetValue())
 143         return;
 144
 145     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widgetCheckbox),
 146                         GTK_SIGNAL_FUNC(gtk_checkbox_clicked_callback),
 147                         (gpointer *)this );
 148
 149     gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_widgetCheckbox), state );
 150
 151     gtk_signal_connect( GTK_OBJECT(m_widgetCheckbox),
 152                         "clicked",
 153                         GTK_SIGNAL_FUNC(gtk_checkbox_clicked_callback),
 154                         (gpointer *)this );
 155 }
 156
 157 bool wxCheckBox::GetValue() const
 158 {
 159     wxCHECK_MSG( m_widgetCheckbox != NULL, FALSE, wxT("invalid checkbox") );
 160
 161     return GTK_TOGGLE_BUTTON(m_widgetCheckbox)->active;
 162 }
 163
 164 void wxCheckBox::SetLabel( const wxString& label )
 165 {
 166     wxCHECK_RET( m_widgetLabel != NULL, wxT("invalid checkbox") );
 167
 168     wxControl::SetLabel( label );
 169
 170     gtk_label_set( GTK_LABEL(m_widgetLabel), GetLabel().mbc_str() );
 171 }
 172
 173 bool wxCheckBox::Enable( bool enable )
 174 {
 175     if ( !wxControl::Enable( enable ) )
 176         return FALSE;
 177
 178     gtk_widget_set_sensitive( m_widgetLabel, enable );
 179
 180     return TRUE;
 181 }
 182
 183 void wxCheckBox::ApplyWidgetStyle()
 184 {
 185     SetWidgetStyle();
 186     gtk_widget_set_style( m_widgetCheckbox, m_widgetStyle );
 187     gtk_widget_set_style( m_widgetLabel, m_widgetStyle );
 188 }
 189
 190 bool wxCheckBox::IsOwnGtkWindow( GdkWindow *window )
 191 {
 192     return (window == GTK_TOGGLE_BUTTON(m_widget)->event_window);
 193 }
 194
 195 void wxCheckBox::OnInternalIdle()
 196 {
 197     wxCursor cursor = m_cursor;
 198     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 199
 200     if (GTK_TOGGLE_BUTTON(m_widgetCheckbox)->event_window && cursor.Ok())
 201     {
 202         /* I now set the cursor the anew in every OnInternalIdle call
 203            as setting the cursor in a parent window also effects the
 204            windows above so that checking for the current cursor is
 205            not possible. */
 206
 207         gdk_window_set_cursor( GTK_TOGGLE_BUTTON(m_widgetCheckbox)->event_window, cursor.GetCursor() );
 208     }
 209
 210     UpdateWindowUI();
 211 }
 212
 213 #endif