src/gtk/bmpbuttn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bmpbuttn.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "bmpbuttn.h"
  12 #endif
  13
  14 #include "wx/bmpbuttn.h"
  15
  16 #if wxUSE_BMPBUTTON
  17
  18 #include "gdk/gdk.h"
  19 #include "gtk/gtk.h"
  20
  21 //-----------------------------------------------------------------------------
  22 // classes
  23 //-----------------------------------------------------------------------------
  24
  25 class wxBitmapButton;
  26
  27 //-----------------------------------------------------------------------------
  28 // idle system
  29 //-----------------------------------------------------------------------------
  30
  31 extern void wxapp_install_idle_handler();
  32 extern bool g_isIdle;
  33
  34 //-----------------------------------------------------------------------------
  35 // data
  36 //-----------------------------------------------------------------------------
  37
  38 extern bool   g_blockEventsOnDrag;
  39
  40 //-----------------------------------------------------------------------------
  41 // "clicked"
  42 //-----------------------------------------------------------------------------
  43
  44 static void gtk_bmpbutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  45 {
  46     if (g_isIdle) wxapp_install_idle_handler();
  47
  48     if (!button->m_hasVMT) return;
  49     if (g_blockEventsOnDrag) return;
  50
  51     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
  52     event.SetEventObject(button);
  53     button->GetEventHandler()->ProcessEvent(event);
  54 }
  55
  56 //-----------------------------------------------------------------------------
  57 // "enter"
  58 //-----------------------------------------------------------------------------
  59
  60 static void gtk_bmpbutton_enter_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  61 {
  62     if (!button->m_hasVMT) return;
  63     if (g_blockEventsOnDrag) return;
  64
  65     button->HasFocus();
  66 }
  67
  68 //-----------------------------------------------------------------------------
  69 // "leave"
  70 //-----------------------------------------------------------------------------
  71
  72 static void gtk_bmpbutton_leave_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  73 {
  74     if (!button->m_hasVMT) return;
  75     if (g_blockEventsOnDrag) return;
  76
  77     button->NotFocus();
  78 }
  79
  80 //-----------------------------------------------------------------------------
  81 // "pressed"
  82 //-----------------------------------------------------------------------------
  83
  84 static void gtk_bmpbutton_press_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  85 {
  86     if (!button->m_hasVMT) return;
  87     if (g_blockEventsOnDrag) return;
  88
  89     button->StartSelect();
  90 }
  91
  92 //-----------------------------------------------------------------------------
  93 // "released"
  94 //-----------------------------------------------------------------------------
  95
  96 static void gtk_bmpbutton_release_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  97 {
  98     if (!button->m_hasVMT) return;
  99     if (g_blockEventsOnDrag) return;
 100
 101     button->EndSelect();
 102 }
 103
 104 //-----------------------------------------------------------------------------
 105 // wxBitmapButton
 106 //-----------------------------------------------------------------------------
 107
 108 IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton,wxControl)
 109
 110 wxBitmapButton::wxBitmapButton()
 111 {
 112 }
 113
 114 bool wxBitmapButton::Create( wxWindow *parent, wxWindowID id, const wxBitmap &bitmap,
 115                              const wxPoint &pos, const wxSize &size,
 116                              long style, const wxValidator& validator, const wxString &name )
 117 {
 118     m_needParent = TRUE;
 119     m_acceptsFocus = TRUE;
 120
 121     wxSize newSize = size;
 122
 123     PreCreation( parent, id, pos, newSize, style, name );
 124
 125 #if wxUSE_VALIDATORS
 126     SetValidator( validator );
 127 #endif
 128
 129     m_bitmap   = bitmap;
 130     m_disabled = bitmap;
 131     m_focus    = bitmap;
 132     m_selected = bitmap;
 133
 134     m_label = "";
 135
 136     m_widget = gtk_button_new();
 137
 138 #if (GTK_MINOR_VERSION > 0)
 139     if (style & wxNO_BORDER)
 140        gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
 141 #endif
 142
 143     if (m_bitmap.Ok())
 144     {
 145         GdkBitmap *mask = (GdkBitmap *) NULL;
 146         if (m_bitmap.GetMask()) mask = m_bitmap.GetMask()->GetBitmap();
 147         GtkWidget *pixmap = gtk_pixmap_new( m_bitmap.GetPixmap(), mask );
 148
 149         gtk_widget_show( pixmap );
 150         gtk_container_add( GTK_CONTAINER(m_widget), pixmap );
 151     }
 152
 153     int border = 10;
 154     if (style & wxNO_BORDER) border = 4;
 155     if (newSize.x == -1) newSize.x = m_bitmap.GetWidth()+border;
 156     if (newSize.y == -1) newSize.y = m_bitmap.GetHeight()+border;
 157     SetSize( newSize.x, newSize.y );
 158
 159     gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
 160       GTK_SIGNAL_FUNC(gtk_bmpbutton_clicked_callback), (gpointer*)this );
 161
 162     gtk_signal_connect( GTK_OBJECT(m_widget), "enter",
 163       GTK_SIGNAL_FUNC(gtk_bmpbutton_enter_callback), (gpointer*)this );
 164     gtk_signal_connect( GTK_OBJECT(m_widget), "leave",
 165       GTK_SIGNAL_FUNC(gtk_bmpbutton_leave_callback), (gpointer*)this );
 166     gtk_signal_connect( GTK_OBJECT(m_widget), "pressed",
 167       GTK_SIGNAL_FUNC(gtk_bmpbutton_press_callback), (gpointer*)this );
 168     gtk_signal_connect( GTK_OBJECT(m_widget), "released",
 169       GTK_SIGNAL_FUNC(gtk_bmpbutton_release_callback), (gpointer*)this );
 170
 171     m_parent->DoAddChild( this );
 172
 173     PostCreation();
 174
 175     SetBackgroundColour( parent->GetBackgroundColour() );
 176
 177     Show( TRUE );
 178
 179     return TRUE;
 180 }
 181
 182 void wxBitmapButton::SetDefault()
 183 {
 184     GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
 185     gtk_widget_grab_default( m_widget );
 186
 187     SetSize( m_x, m_y, m_width, m_height );
 188 }
 189
 190 void wxBitmapButton::SetLabel( const wxString &label )
 191 {
 192     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 193
 194     wxControl::SetLabel( label );
 195 }
 196
 197 wxString wxBitmapButton::GetLabel() const
 198 {
 199     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid button") );
 200
 201     return wxControl::GetLabel();
 202 }
 203
 204 void wxBitmapButton::ApplyWidgetStyle()
 205 {
 206 }
 207
 208 void wxBitmapButton::SetBitmap()
 209 {
 210     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 211
 212     wxBitmap the_one;
 213
 214     if (!m_isEnabled)
 215         the_one = m_disabled;
 216     else
 217     {
 218         if (m_isSelected)
 219         {
 220             the_one = m_selected;
 221         }
 222         else
 223         {
 224             if (m_hasFocus)
 225                 the_one = m_focus;
 226             else
 227                 the_one = m_bitmap;
 228         }
 229     }
 230
 231     if (!the_one.Ok()) the_one = m_bitmap;
 232     if (!the_one.Ok()) return;
 233
 234     GtkButton *bin = GTK_BUTTON( m_widget );
 235     GtkPixmap *g_pixmap = GTK_PIXMAP( bin->child );
 236
 237     GdkBitmap *mask = (GdkBitmap *) NULL;
 238     if (the_one.GetMask()) mask = the_one.GetMask()->GetBitmap();
 239
 240     gtk_pixmap_set( g_pixmap, the_one.GetPixmap(), mask );
 241 }
 242
 243 void wxBitmapButton::SetBitmapDisabled( const wxBitmap& bitmap )
 244 {
 245   wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 246
 247   if ( ! m_disabled.Ok() ) return;
 248   m_disabled = bitmap;
 249
 250   SetBitmap();
 251 }
 252
 253 void wxBitmapButton::SetBitmapFocus( const wxBitmap& bitmap )
 254 {
 255     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 256
 257     if ( ! m_focus.Ok() ) return;
 258     m_focus = bitmap;
 259
 260     SetBitmap();
 261 }
 262
 263 void wxBitmapButton::SetBitmapLabel( const wxBitmap& bitmap )
 264 {
 265     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 266
 267     if (!m_bitmap.Ok()) return;
 268     m_bitmap = bitmap;
 269
 270     SetBitmap();
 271 }
 272
 273 void wxBitmapButton::SetBitmapSelected( const wxBitmap& bitmap )
 274 {
 275     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 276
 277     if ( ! m_selected.Ok() ) return;
 278     m_selected = bitmap;
 279
 280     SetBitmap();
 281 }
 282
 283 bool wxBitmapButton::Enable( bool enable )
 284 {
 285     if ( !wxWindow::Enable(enable) )
 286         return FALSE;
 287
 288     SetBitmap();
 289
 290     return TRUE;
 291 }
 292
 293 void wxBitmapButton::HasFocus()
 294 {
 295     m_hasFocus = TRUE;
 296     SetBitmap();
 297 }
 298
 299 void wxBitmapButton::NotFocus()
 300 {
 301     m_hasFocus = FALSE;
 302     SetBitmap();
 303 }
 304
 305 void wxBitmapButton::StartSelect()
 306 {
 307     m_isSelected = TRUE;
 308     SetBitmap();
 309 }
 310
 311 void wxBitmapButton::EndSelect()
 312 {
 313     m_isSelected = FALSE;
 314     SetBitmap();
 315 }
 316
 317 #endif