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,wxButton)
 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     if (!PreCreation( parent, pos, size ) ||
 122         !CreateBase( parent, id, pos, size, style, validator, name ))
 123     {
 124         wxFAIL_MSG( _T("wxBitmapButton creation failed") );
 125         return FALSE;
 126     }
 127
 128     m_bitmap   = bitmap;
 129     m_disabled = bitmap;
 130     m_focus    = bitmap;
 131     m_selected = bitmap;
 132
 133     m_label = "";
 134
 135     m_widget = gtk_button_new();
 136
 137 #if (GTK_MINOR_VERSION > 0)
 138     if (style & wxNO_BORDER)
 139        gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
 140 #endif
 141
 142     if (m_bitmap.Ok())
 143     {
 144         wxSize newSize = size;
 145
 146         GdkBitmap *mask = (GdkBitmap *) NULL;
 147         if (m_bitmap.GetMask()) mask = m_bitmap.GetMask()->GetBitmap();
 148         GtkWidget *pixmap = gtk_pixmap_new( m_bitmap.GetPixmap(), mask );
 149
 150         gtk_widget_show( pixmap );
 151         gtk_container_add( GTK_CONTAINER(m_widget), pixmap );
 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
 160     gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
 161       GTK_SIGNAL_FUNC(gtk_bmpbutton_clicked_callback), (gpointer*)this );
 162
 163     gtk_signal_connect( GTK_OBJECT(m_widget), "enter",
 164       GTK_SIGNAL_FUNC(gtk_bmpbutton_enter_callback), (gpointer*)this );
 165     gtk_signal_connect( GTK_OBJECT(m_widget), "leave",
 166       GTK_SIGNAL_FUNC(gtk_bmpbutton_leave_callback), (gpointer*)this );
 167     gtk_signal_connect( GTK_OBJECT(m_widget), "pressed",
 168       GTK_SIGNAL_FUNC(gtk_bmpbutton_press_callback), (gpointer*)this );
 169     gtk_signal_connect( GTK_OBJECT(m_widget), "released",
 170       GTK_SIGNAL_FUNC(gtk_bmpbutton_release_callback), (gpointer*)this );
 171
 172     m_parent->DoAddChild( this );
 173
 174     PostCreation();
 175
 176     SetBackgroundColour( parent->GetBackgroundColour() );
 177
 178     Show( TRUE );
 179
 180     return TRUE;
 181 }
 182
 183 void wxBitmapButton::SetDefault()
 184 {
 185     GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
 186     gtk_widget_grab_default( m_widget );
 187
 188     SetSize( m_x, m_y, m_width, m_height );
 189 }
 190
 191 void wxBitmapButton::SetLabel( const wxString &label )
 192 {
 193     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 194
 195     wxControl::SetLabel( label );
 196 }
 197
 198 wxString wxBitmapButton::GetLabel() const
 199 {
 200     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid button") );
 201
 202     return wxControl::GetLabel();
 203 }
 204
 205 void wxBitmapButton::ApplyWidgetStyle()
 206 {
 207 }
 208
 209 void wxBitmapButton::SetBitmap()
 210 {
 211     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 212
 213     wxBitmap the_one;
 214
 215     if (!m_isEnabled)
 216         the_one = m_disabled;
 217     else
 218     {
 219         if (m_isSelected)
 220         {
 221             the_one = m_selected;
 222         }
 223         else
 224         {
 225             if (m_hasFocus)
 226                 the_one = m_focus;
 227             else
 228                 the_one = m_bitmap;
 229         }
 230     }
 231
 232     if (!the_one.Ok()) the_one = m_bitmap;
 233     if (!the_one.Ok()) return;
 234
 235     GtkButton *bin = GTK_BUTTON( m_widget );
 236     GtkPixmap *g_pixmap = GTK_PIXMAP( bin->child );
 237
 238     GdkBitmap *mask = (GdkBitmap *) NULL;
 239     if (the_one.GetMask()) mask = the_one.GetMask()->GetBitmap();
 240
 241     gtk_pixmap_set( g_pixmap, the_one.GetPixmap(), mask );
 242 }
 243
 244 void wxBitmapButton::SetBitmapDisabled( const wxBitmap& bitmap )
 245 {
 246   wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 247
 248   if ( ! m_disabled.Ok() ) return;
 249   m_disabled = bitmap;
 250
 251   SetBitmap();
 252 }
 253
 254 void wxBitmapButton::SetBitmapFocus( const wxBitmap& bitmap )
 255 {
 256     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 257
 258     if ( ! m_focus.Ok() ) return;
 259     m_focus = bitmap;
 260
 261     SetBitmap();
 262 }
 263
 264 void wxBitmapButton::SetBitmapLabel( const wxBitmap& bitmap )
 265 {
 266     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 267
 268     if (!m_bitmap.Ok()) return;
 269     m_bitmap = bitmap;
 270
 271     SetBitmap();
 272 }
 273
 274 void wxBitmapButton::SetBitmapSelected( const wxBitmap& bitmap )
 275 {
 276     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 277
 278     if ( ! m_selected.Ok() ) return;
 279     m_selected = bitmap;
 280
 281     SetBitmap();
 282 }
 283
 284 bool wxBitmapButton::Enable( bool enable )
 285 {
 286     if ( !wxWindow::Enable(enable) )
 287         return FALSE;
 288
 289     SetBitmap();
 290
 291     return TRUE;
 292 }
 293
 294 void wxBitmapButton::HasFocus()
 295 {
 296     m_hasFocus = TRUE;
 297     SetBitmap();
 298 }
 299
 300 void wxBitmapButton::NotFocus()
 301 {
 302     m_hasFocus = FALSE;
 303     SetBitmap();
 304 }
 305
 306 void wxBitmapButton::StartSelect()
 307 {
 308     m_isSelected = TRUE;
 309     SetBitmap();
 310 }
 311
 312 void wxBitmapButton::EndSelect()
 313 {
 314     m_isSelected = FALSE;
 315     SetBitmap();
 316 }
 317
 318 #endif