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 // FIXME: Use GtkImage instead of GtkPixmap.
  25 #include <gtk/gtkversion.h>
  26 #ifdef GTK_DISABLE_DEPRECATED
  27 #undef GTK_DISABLE_DEPRECATED
  28 #endif
  29
  30 #include "wx/gtk/private.h"
  31
  32 extern bool      g_blockEventsOnDrag;
  33
  34 extern "C" {
  35 static void gtk_togglebutton_clicked_callback(GtkWidget *WXUNUSED(widget), wxToggleButton *cb)
  36 {
  37     if (g_isIdle)
  38         wxapp_install_idle_handler();
  39
  40     if (!cb->m_hasVMT || g_blockEventsOnDrag)
  41         return;
  42
  43     if (cb->m_blockEvent) return;
  44
  45     // Generate a wx event.
  46     wxCommandEvent event(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, cb->GetId());
  47     event.SetInt(cb->GetValue());
  48     event.SetEventObject(cb);
  49     cb->GetEventHandler()->ProcessEvent(event);
  50 }
  51 }
  52
  53 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED)
  54
  55 // ------------------------------------------------------------------------
  56 // wxToggleBitmapButton
  57 // ------------------------------------------------------------------------
  58
  59 IMPLEMENT_DYNAMIC_CLASS(wxToggleBitmapButton, wxControl)
  60
  61 bool wxToggleBitmapButton::Create(wxWindow *parent, wxWindowID id,
  62                             const wxBitmap &label, const wxPoint &pos,
  63                             const wxSize &size, long style,
  64                             const wxValidator& validator,
  65                             const wxString &name)
  66 {
  67     m_needParent = true;
  68     m_acceptsFocus = true;
  69
  70     m_blockEvent = false;
  71
  72     if (!PreCreation(parent, pos, size) ||
  73        !CreateBase(parent, id, pos, size, style, validator, name ))
  74     {
  75         wxFAIL_MSG(wxT("wxToggleBitmapButton creation failed"));
  76         return false;
  77     }
  78
  79     m_bitmap = label;
  80
  81     // Create the gtk widget.
  82     m_widget = gtk_toggle_button_new();
  83
  84     if (style & wxNO_BORDER)
  85        gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
  86
  87     if (m_bitmap.Ok())
  88     {
  89         OnSetBitmap();
  90     }
  91
  92     g_signal_connect (m_widget, "clicked",
  93                       G_CALLBACK (gtk_togglebutton_clicked_callback),
  94                       this);
  95
  96     m_parent->DoAddChild(this);
  97
  98     PostCreation(size);
  99
 100     return true;
 101 }
 102
 103 // void SetValue(bool state)
 104 // Set the value of the toggle button.
 105 void wxToggleBitmapButton::SetValue(bool state)
 106 {
 107     wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button"));
 108
 109     if (state == GetValue())
 110         return;
 111
 112     m_blockEvent = true;
 113
 114     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(m_widget), state);
 115
 116     m_blockEvent = false;
 117 }
 118
 119 // bool GetValue() const
 120 // Get the value of the toggle button.
 121 bool wxToggleBitmapButton::GetValue() const
 122 {
 123     wxCHECK_MSG(m_widget != NULL, false, wxT("invalid toggle button"));
 124
 125     return GTK_TOGGLE_BUTTON(m_widget)->active;
 126 }
 127
 128 void wxToggleBitmapButton::SetLabel(const wxBitmap& label)
 129 {
 130     wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button"));
 131
 132     m_bitmap = label;
 133     InvalidateBestSize();
 134
 135     OnSetBitmap();
 136 }
 137
 138 void wxToggleBitmapButton::OnSetBitmap()
 139 {
 140     if (!m_bitmap.Ok()) return;
 141
 142     GdkBitmap *mask = (GdkBitmap *) NULL;
 143     if (m_bitmap.GetMask()) mask = m_bitmap.GetMask()->GetBitmap();
 144
 145     GtkWidget *child = GTK_BIN(m_widget)->child;
 146     if (child == NULL)
 147     {
 148         // initial bitmap
 149         GtkWidget *pixmap = gtk_pixmap_new(m_bitmap.GetPixmap(), mask);
 150         gtk_widget_show(pixmap);
 151         gtk_container_add(GTK_CONTAINER(m_widget), pixmap);
 152     }
 153     else
 154     {   // subsequent bitmaps
 155         GtkPixmap *g_pixmap = GTK_PIXMAP(child);
 156         gtk_pixmap_set(g_pixmap, m_bitmap.GetPixmap(), mask);
 157     }
 158 }
 159
 160 bool wxToggleBitmapButton::Enable(bool enable /*=true*/)
 161 {
 162     if (!wxControl::Enable(enable))
 163         return false;
 164
 165     gtk_widget_set_sensitive(GTK_BIN(m_widget)->child, enable);
 166
 167     return true;
 168 }
 169
 170 void wxToggleBitmapButton::DoApplyWidgetStyle(GtkRcStyle *style)
 171 {
 172     gtk_widget_modify_style(m_widget, style);
 173     gtk_widget_modify_style(GTK_BIN(m_widget)->child, style);
 174 }
 175
 176 GdkWindow *
 177 wxToggleBitmapButton::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
 178 {
 179     return GTK_BUTTON(m_widget)->event_window;
 180 }
 181
 182 // Get the "best" size for this control.
 183 wxSize wxToggleBitmapButton::DoGetBestSize() const
 184 {
 185     wxSize best;
 186
 187     if (m_bitmap.Ok())
 188     {
 189         int border = HasFlag(wxNO_BORDER) ? 4 : 10;
 190         best.x = m_bitmap.GetWidth()+border;
 191         best.y = m_bitmap.GetHeight()+border;
 192     }
 193     CacheBestSize(best);
 194     return best;
 195 }
 196
 197
 198 // static
 199 wxVisualAttributes
 200 wxToggleBitmapButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 201 {
 202     return GetDefaultAttributesFromGTKWidget(gtk_toggle_button_new);
 203 }
 204
 205
 206 // ------------------------------------------------------------------------
 207 // wxToggleButton
 208 // ------------------------------------------------------------------------
 209
 210 IMPLEMENT_DYNAMIC_CLASS(wxToggleButton, wxControl)
 211
 212 bool wxToggleButton::Create(wxWindow *parent, wxWindowID id,
 213                             const wxString &label, const wxPoint &pos,
 214                             const wxSize &size, long style,
 215                             const wxValidator& validator,
 216                             const wxString &name)
 217 {
 218     m_needParent = true;
 219     m_acceptsFocus = true;
 220
 221     m_blockEvent = false;
 222
 223     if (!PreCreation(parent, pos, size) ||
 224         !CreateBase(parent, id, pos, size, style, validator, name )) {
 225         wxFAIL_MSG(wxT("wxToggleButton creation failed"));
 226         return false;
 227     }
 228
 229     wxControl::SetLabel(label);
 230
 231     // Create the gtk widget.
 232     m_widget = gtk_toggle_button_new_with_label( wxGTK_CONV( m_label ) );
 233
 234     g_signal_connect (m_widget, "clicked",
 235                       G_CALLBACK (gtk_togglebutton_clicked_callback),
 236                       this);
 237
 238     m_parent->DoAddChild(this);
 239
 240     PostCreation(size);
 241
 242     return true;
 243 }
 244
 245 // void SetValue(bool state)
 246 // Set the value of the toggle button.
 247 void wxToggleButton::SetValue(bool state)
 248 {
 249     wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button"));
 250
 251     if (state == GetValue())
 252         return;
 253
 254     m_blockEvent = true;
 255
 256     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(m_widget), state);
 257
 258     m_blockEvent = false;
 259 }
 260
 261 // bool GetValue() const
 262 // Get the value of the toggle button.
 263 bool wxToggleButton::GetValue() const
 264 {
 265     wxCHECK_MSG(m_widget != NULL, false, wxT("invalid toggle button"));
 266
 267     return GTK_TOGGLE_BUTTON(m_widget)->active;
 268 }
 269
 270 void wxToggleButton::SetLabel(const wxString& label)
 271 {
 272     wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button"));
 273
 274     wxControl::SetLabel(label);
 275
 276     gtk_label_set_text(GTK_LABEL(GTK_BIN(m_widget)->child), wxGTK_CONV(GetLabel()));
 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