src/gtk/tglbtn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/tglbtn.cpp
   3 // Purpose:     Definition of the wxToggleButton class, which implements a
   4 //              toggle button under wxGTK.
   5 // Author:      John Norris, minor changes by Axel Schlueter
   6 // Modified by:
   7 // Created:     08.02.01
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 2000 Johnny C. Norris II
  10 // License:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 // For compilers that support precompilation, includes "wx.h".
  14 #include "wx/wxprec.h"
  15
  16 #if wxUSE_TOGGLEBTN
  17
  18 #include "wx/tglbtn.h"
  19
  20 #ifndef WX_PRECOMP
  21     #include "wx/button.h"
  22 #endif
  23
  24 #include "wx/gtk/private.h"
  25
  26 extern bool      g_blockEventsOnDrag;
  27
  28 extern "C" {
  29 static void gtk_togglebutton_clicked_callback(GtkWidget *WXUNUSED(widget), wxToggleButton *cb)
  30 {
  31     if (!cb->m_hasVMT || g_blockEventsOnDrag)
  32         return;
  33
  34     if (cb->m_blockEvent) return;
  35
  36     // Generate a wx event.
  37     wxCommandEvent event(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, cb->GetId());
  38     event.SetInt(cb->GetValue());
  39     event.SetEventObject(cb);
  40     cb->HandleWindowEvent(event);
  41 }
  42 }
  43
  44 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED)
  45
  46 // ------------------------------------------------------------------------
  47 // wxBitmapToggleButton
  48 // ------------------------------------------------------------------------
  49
  50 IMPLEMENT_DYNAMIC_CLASS(wxBitmapToggleButton, wxControl)
  51
  52 bool wxBitmapToggleButton::Create(wxWindow *parent, wxWindowID id,
  53                             const wxBitmap &label, const wxPoint &pos,
  54                             const wxSize &size, long style,
  55                             const wxValidator& validator,
  56                             const wxString &name)
  57 {
  58     m_blockEvent = false;
  59
  60     if (!PreCreation(parent, pos, size) ||
  61        !CreateBase(parent, id, pos, size, style, validator, name ))
  62     {
  63         wxFAIL_MSG(wxT("wxBitmapToggleButton creation failed"));
  64         return false;
  65     }
  66
  67     // Create the gtk widget.
  68     m_widget = gtk_toggle_button_new();
  69     g_object_ref(m_widget);
  70
  71     if (style & wxNO_BORDER)
  72         gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
  73
  74     m_bitmap = label;
  75     OnSetBitmap();
  76
  77     g_signal_connect (m_widget, "clicked",
  78                       G_CALLBACK (gtk_togglebutton_clicked_callback),
  79                       this);
  80
  81     m_parent->DoAddChild(this);
  82
  83     PostCreation(size);
  84
  85     return true;
  86 }
  87
  88 // void SetValue(bool state)
  89 // Set the value of the toggle button.
  90 void wxBitmapToggleButton::SetValue(bool state)
  91 {
  92     wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button"));
  93
  94     if (state == GetValue())
  95         return;
  96
  97     m_blockEvent = true;
  98
  99     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(m_widget), state);
 100
 101     m_blockEvent = false;
 102 }
 103
 104 // bool GetValue() const
 105 // Get the value of the toggle button.
 106 bool wxBitmapToggleButton::GetValue() const
 107 {
 108     wxCHECK_MSG(m_widget != NULL, false, wxT("invalid toggle button"));
 109
 110     return gtk_toggle_button_get_active((GtkToggleButton*)m_widget);
 111 }
 112
 113 void wxBitmapToggleButton::SetLabel(const wxBitmap& label)
 114 {
 115     wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button"));
 116
 117     m_bitmap = label;
 118     InvalidateBestSize();
 119
 120     OnSetBitmap();
 121 }
 122
 123 void wxBitmapToggleButton::OnSetBitmap()
 124 {
 125     if (!m_bitmap.Ok()) return;
 126
 127     GtkWidget* image = ((GtkBin*)m_widget)->child;
 128     if (image == NULL)
 129     {
 130         image = gtk_image_new();
 131         gtk_widget_show(image);
 132         gtk_container_add((GtkContainer*)m_widget, image);
 133     }
 134     // always use pixbuf, because pixmap mask does not
 135     // work with disabled images in some themes
 136     gtk_image_set_from_pixbuf((GtkImage*)image, m_bitmap.GetPixbuf());
 137 }
 138
 139 bool wxBitmapToggleButton::Enable(bool enable /*=true*/)
 140 {
 141     if (!wxControl::Enable(enable))
 142         return false;
 143
 144     gtk_widget_set_sensitive(GTK_BIN(m_widget)->child, enable);
 145
 146     return true;
 147 }
 148
 149 void wxBitmapToggleButton::DoApplyWidgetStyle(GtkRcStyle *style)
 150 {
 151     gtk_widget_modify_style(m_widget, style);
 152     gtk_widget_modify_style(GTK_BIN(m_widget)->child, style);
 153 }
 154
 155 GdkWindow *
 156 wxBitmapToggleButton::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
 157 {
 158     return GTK_BUTTON(m_widget)->event_window;
 159 }
 160
 161 // Get the "best" size for this control.
 162 wxSize wxBitmapToggleButton::DoGetBestSize() const
 163 {
 164     wxSize best;
 165
 166     if (m_bitmap.Ok())
 167     {
 168         int border = HasFlag(wxNO_BORDER) ? 4 : 10;
 169         best.x = m_bitmap.GetWidth()+border;
 170         best.y = m_bitmap.GetHeight()+border;
 171     }
 172     CacheBestSize(best);
 173     return best;
 174 }
 175
 176
 177 // static
 178 wxVisualAttributes
 179 wxBitmapToggleButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 180 {
 181     return GetDefaultAttributesFromGTKWidget(gtk_toggle_button_new);
 182 }
 183
 184
 185 // ------------------------------------------------------------------------
 186 // wxToggleButton
 187 // ------------------------------------------------------------------------
 188
 189 IMPLEMENT_DYNAMIC_CLASS(wxToggleButton, wxControl)
 190
 191 bool wxToggleButton::Create(wxWindow *parent, wxWindowID id,
 192                             const wxString &label, const wxPoint &pos,
 193                             const wxSize &size, long style,
 194                             const wxValidator& validator,
 195                             const wxString &name)
 196 {
 197     m_blockEvent = false;
 198
 199     if (!PreCreation(parent, pos, size) ||
 200         !CreateBase(parent, id, pos, size, style, validator, name ))
 201     {
 202         wxFAIL_MSG(wxT("wxToggleButton creation failed"));
 203         return false;
 204     }
 205
 206     // Create the gtk widget.
 207     m_widget = gtk_toggle_button_new_with_mnemonic("");
 208     g_object_ref(m_widget);
 209
 210     SetLabel(label);
 211
 212     g_signal_connect (m_widget, "clicked",
 213                       G_CALLBACK (gtk_togglebutton_clicked_callback),
 214                       this);
 215
 216     m_parent->DoAddChild(this);
 217
 218     PostCreation(size);
 219
 220     return true;
 221 }
 222
 223 // void SetValue(bool state)
 224 // Set the value of the toggle button.
 225 void wxToggleButton::SetValue(bool state)
 226 {
 227     wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button"));
 228
 229     if (state == GetValue())
 230         return;
 231
 232     m_blockEvent = true;
 233
 234     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(m_widget), state);
 235
 236     m_blockEvent = false;
 237 }
 238
 239 // bool GetValue() const
 240 // Get the value of the toggle button.
 241 bool wxToggleButton::GetValue() const
 242 {
 243     wxCHECK_MSG(m_widget != NULL, false, wxT("invalid toggle button"));
 244
 245     return GTK_TOGGLE_BUTTON(m_widget)->active;
 246 }
 247
 248 void wxToggleButton::SetLabel(const wxString& label)
 249 {
 250     wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button"));
 251
 252     wxControl::SetLabel(label);
 253
 254     const wxString labelGTK = GTKConvertMnemonics(label);
 255
 256     gtk_button_set_label(GTK_BUTTON(m_widget), wxGTK_CONV(labelGTK));
 257
 258     ApplyWidgetStyle( false );
 259 }
 260
 261 bool wxToggleButton::Enable(bool enable /*=true*/)
 262 {
 263     if (!wxControl::Enable(enable))
 264         return false;
 265
 266     gtk_widget_set_sensitive(GTK_BIN(m_widget)->child, enable);
 267
 268     return true;
 269 }
 270
 271 void wxToggleButton::DoApplyWidgetStyle(GtkRcStyle *style)
 272 {
 273     gtk_widget_modify_style(m_widget, style);
 274     gtk_widget_modify_style(GTK_BIN(m_widget)->child, style);
 275 }
 276
 277 GdkWindow *
 278 wxToggleButton::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
 279 {
 280     return GTK_BUTTON(m_widget)->event_window;
 281 }
 282
 283 // Get the "best" size for this control.
 284 wxSize wxToggleButton::DoGetBestSize() const
 285 {
 286     wxSize ret(wxControl::DoGetBestSize());
 287
 288     if (!HasFlag(wxBU_EXACTFIT))
 289     {
 290         if (ret.x < 80) ret.x = 80;
 291     }
 292
 293     CacheBestSize(ret);
 294     return ret;
 295 }
 296
 297 // static
 298 wxVisualAttributes
 299 wxToggleButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 300 {
 301     return GetDefaultAttributesFromGTKWidget(gtk_toggle_button_new);
 302 }
 303
 304 #endif // wxUSE_TOGGLEBTN