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