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     // Generate a wx event.
  35     wxCommandEvent event(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, cb->GetId());
  36     event.SetInt(cb->GetValue());
  37     event.SetEventObject(cb);
  38     cb->HandleWindowEvent(event);
  39 }
  40 }
  41
  42 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED)
  43
  44 // ------------------------------------------------------------------------
  45 // wxBitmapToggleButton
  46 // ------------------------------------------------------------------------
  47
  48 IMPLEMENT_DYNAMIC_CLASS(wxBitmapToggleButton, wxControl)
  49
  50 bool wxBitmapToggleButton::Create(wxWindow *parent, wxWindowID id,
  51                             const wxBitmap &label, const wxPoint &pos,
  52                             const wxSize &size, long style,
  53                             const wxValidator& validator,
  54                             const wxString &name)
  55 {
  56     if (!PreCreation(parent, pos, size) ||
  57        !CreateBase(parent, id, pos, size, style, validator, name ))
  58     {
  59         wxFAIL_MSG(wxT("wxBitmapToggleButton creation failed"));
  60         return false;
  61     }
  62
  63     // Create the gtk widget.
  64     m_widget = gtk_toggle_button_new();
  65     g_object_ref(m_widget);
  66
  67     if (style & wxNO_BORDER)
  68         gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
  69
  70     m_bitmap = label;
  71     OnSetBitmap();
  72
  73     g_signal_connect (m_widget, "clicked",
  74                       G_CALLBACK (gtk_togglebutton_clicked_callback),
  75                       this);
  76
  77     m_parent->DoAddChild(this);
  78
  79     PostCreation(size);
  80
  81     return true;
  82 }
  83
  84 void wxBitmapToggleButton::GTKDisableEvents()
  85 {
  86     g_signal_handlers_block_by_func(m_widget,
  87                                 (gpointer) gtk_togglebutton_clicked_callback, this);
  88 }
  89
  90 void wxBitmapToggleButton::GTKEnableEvents()
  91 {
  92     g_signal_handlers_unblock_by_func(m_widget,
  93                                 (gpointer) gtk_togglebutton_clicked_callback, this);
  94 }
  95
  96 // void SetValue(bool state)
  97 // Set the value of the toggle button.
  98 void wxBitmapToggleButton::SetValue(bool state)
  99 {
 100     wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button"));
 101
 102     if (state == GetValue())
 103         return;
 104
 105     GTKDisableEvents();
 106
 107     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(m_widget), state);
 108
 109     GTKEnableEvents();
 110 }
 111
 112 // bool GetValue() const
 113 // Get the value of the toggle button.
 114 bool wxBitmapToggleButton::GetValue() const
 115 {
 116     wxCHECK_MSG(m_widget != NULL, false, wxT("invalid toggle button"));
 117
 118     return gtk_toggle_button_get_active((GtkToggleButton*)m_widget);
 119 }
 120
 121 void wxBitmapToggleButton::SetLabel(const wxBitmap& label)
 122 {
 123     wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button"));
 124
 125     m_bitmap = label;
 126     InvalidateBestSize();
 127
 128     OnSetBitmap();
 129 }
 130
 131 void wxBitmapToggleButton::OnSetBitmap()
 132 {
 133     if (!m_bitmap.Ok()) return;
 134
 135     GtkWidget* image = ((GtkBin*)m_widget)->child;
 136     if (image == NULL)
 137     {
 138         image = gtk_image_new();
 139         gtk_widget_show(image);
 140         gtk_container_add((GtkContainer*)m_widget, image);
 141     }
 142     // always use pixbuf, because pixmap mask does not
 143     // work with disabled images in some themes
 144     gtk_image_set_from_pixbuf((GtkImage*)image, m_bitmap.GetPixbuf());
 145 }
 146
 147 bool wxBitmapToggleButton::Enable(bool enable /*=true*/)
 148 {
 149     if (!wxControl::Enable(enable))
 150         return false;
 151
 152     gtk_widget_set_sensitive(GTK_BIN(m_widget)->child, enable);
 153
 154     return true;
 155 }
 156
 157 void wxBitmapToggleButton::DoApplyWidgetStyle(GtkRcStyle *style)
 158 {
 159     gtk_widget_modify_style(m_widget, style);
 160     gtk_widget_modify_style(GTK_BIN(m_widget)->child, style);
 161 }
 162
 163 GdkWindow *
 164 wxBitmapToggleButton::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
 165 {
 166     return GTK_BUTTON(m_widget)->event_window;
 167 }
 168
 169 // Get the "best" size for this control.
 170 wxSize wxBitmapToggleButton::DoGetBestSize() const
 171 {
 172     wxSize best;
 173
 174     if (m_bitmap.Ok())
 175     {
 176         int border = HasFlag(wxNO_BORDER) ? 4 : 10;
 177         best.x = m_bitmap.GetWidth()+border;
 178         best.y = m_bitmap.GetHeight()+border;
 179     }
 180     CacheBestSize(best);
 181     return best;
 182 }
 183
 184
 185 // static
 186 wxVisualAttributes
 187 wxBitmapToggleButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 188 {
 189     return GetDefaultAttributesFromGTKWidget(gtk_toggle_button_new);
 190 }
 191
 192
 193 // ------------------------------------------------------------------------
 194 // wxToggleButton
 195 // ------------------------------------------------------------------------
 196
 197 IMPLEMENT_DYNAMIC_CLASS(wxToggleButton, wxControl)
 198
 199 bool wxToggleButton::Create(wxWindow *parent, wxWindowID id,
 200                             const wxString &label, const wxPoint &pos,
 201                             const wxSize &size, long style,
 202                             const wxValidator& validator,
 203                             const wxString &name)
 204 {
 205     if (!PreCreation(parent, pos, size) ||
 206         !CreateBase(parent, id, pos, size, style, validator, name ))
 207     {
 208         wxFAIL_MSG(wxT("wxToggleButton creation failed"));
 209         return false;
 210     }
 211
 212     // Create the gtk widget.
 213     m_widget = gtk_toggle_button_new_with_mnemonic("");
 214     g_object_ref(m_widget);
 215
 216     SetLabel(label);
 217
 218     g_signal_connect (m_widget, "clicked",
 219                       G_CALLBACK (gtk_togglebutton_clicked_callback),
 220                       this);
 221
 222     m_parent->DoAddChild(this);
 223
 224     PostCreation(size);
 225
 226     return true;
 227 }
 228
 229 void wxToggleButton::GTKDisableEvents()
 230 {
 231     g_signal_handlers_block_by_func(m_widget,
 232                                 (gpointer) gtk_togglebutton_clicked_callback, this);
 233 }
 234
 235 void wxToggleButton::GTKEnableEvents()
 236 {
 237     g_signal_handlers_unblock_by_func(m_widget,
 238                                 (gpointer) gtk_togglebutton_clicked_callback, this);
 239 }
 240
 241 // void SetValue(bool state)
 242 // Set the value of the toggle button.
 243 void wxToggleButton::SetValue(bool state)
 244 {
 245     wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button"));
 246
 247     if (state == GetValue())
 248         return;
 249
 250     GTKDisableEvents();
 251
 252     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(m_widget), state);
 253
 254     GTKEnableEvents();
 255 }
 256
 257 // bool GetValue() const
 258 // Get the value of the toggle button.
 259 bool wxToggleButton::GetValue() const
 260 {
 261     wxCHECK_MSG(m_widget != NULL, false, wxT("invalid toggle button"));
 262
 263     return GTK_TOGGLE_BUTTON(m_widget)->active;
 264 }
 265
 266 void wxToggleButton::SetLabel(const wxString& label)
 267 {
 268     wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button"));
 269
 270     wxControl::SetLabel(label);
 271
 272     const wxString labelGTK = GTKConvertMnemonics(label);
 273
 274     gtk_button_set_label(GTK_BUTTON(m_widget), wxGTK_CONV(labelGTK));
 275
 276     ApplyWidgetStyle( false );
 277 }
 278
 279 bool wxToggleButton::Enable(bool enable /*=true*/)
 280 {
 281     if (!wxControl::Enable(enable))
 282         return false;
 283
 284     gtk_widget_set_sensitive(GTK_BIN(m_widget)->child, enable);
 285
 286     return true;
 287 }
 288
 289 void wxToggleButton::DoApplyWidgetStyle(GtkRcStyle *style)
 290 {
 291     gtk_widget_modify_style(m_widget, style);
 292     gtk_widget_modify_style(GTK_BIN(m_widget)->child, style);
 293 }
 294
 295 GdkWindow *
 296 wxToggleButton::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
 297 {
 298     return GTK_BUTTON(m_widget)->event_window;
 299 }
 300
 301 // Get the "best" size for this control.
 302 wxSize wxToggleButton::DoGetBestSize() const
 303 {
 304     wxSize ret(wxControl::DoGetBestSize());
 305
 306     if (!HasFlag(wxBU_EXACTFIT))
 307     {
 308         if (ret.x < 80) ret.x = 80;
 309     }
 310
 311     CacheBestSize(ret);
 312     return ret;
 313 }
 314
 315 // static
 316 wxVisualAttributes
 317 wxToggleButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 318 {
 319     return GetDefaultAttributesFromGTKWidget(gtk_toggle_button_new);
 320 }
 321
 322 #endif // wxUSE_TOGGLEBTN