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