src/gtk/bmpbuttn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        gtk/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)
  47         wxapp_install_idle_handler();
  48
  49     if (!button->m_hasVMT) return;
  50     if (g_blockEventsOnDrag) return;
  51
  52     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
  53     event.SetEventObject(button);
  54     button->GetEventHandler()->ProcessEvent(event);
  55 }
  56
  57 //-----------------------------------------------------------------------------
  58 // "enter"
  59 //-----------------------------------------------------------------------------
  60
  61 static void gtk_bmpbutton_enter_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  62 {
  63     if (!button->m_hasVMT) return;
  64     if (g_blockEventsOnDrag) return;
  65
  66     button->HasFocus();
  67 }
  68
  69 //-----------------------------------------------------------------------------
  70 // "leave"
  71 //-----------------------------------------------------------------------------
  72
  73 static void gtk_bmpbutton_leave_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  74 {
  75     if (!button->m_hasVMT) return;
  76     if (g_blockEventsOnDrag) return;
  77
  78     button->NotFocus();
  79 }
  80
  81 //-----------------------------------------------------------------------------
  82 // "pressed"
  83 //-----------------------------------------------------------------------------
  84
  85 static void gtk_bmpbutton_press_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  86 {
  87     if (!button->m_hasVMT) return;
  88     if (g_blockEventsOnDrag) return;
  89
  90     button->StartSelect();
  91 }
  92
  93 //-----------------------------------------------------------------------------
  94 // "released"
  95 //-----------------------------------------------------------------------------
  96
  97 static void gtk_bmpbutton_release_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  98 {
  99     if (!button->m_hasVMT) return;
 100     if (g_blockEventsOnDrag) return;
 101
 102     button->EndSelect();
 103 }
 104
 105 //-----------------------------------------------------------------------------
 106 // wxBitmapButton
 107 //-----------------------------------------------------------------------------
 108
 109 IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton,wxButton)
 110
 111 wxBitmapButton::wxBitmapButton()
 112 {
 113 }
 114
 115 bool wxBitmapButton::Create( wxWindow *parent, wxWindowID id, const wxBitmap &bitmap,
 116                              const wxPoint &pos, const wxSize &size,
 117                              long style, const wxValidator& validator, const wxString &name )
 118 {
 119     m_needParent = TRUE;
 120     m_acceptsFocus = TRUE;
 121
 122     m_marginX =
 123     m_marginY = 0;
 124
 125     if (!PreCreation( parent, pos, size ) ||
 126         !CreateBase( parent, id, pos, size, style, validator, name ))
 127     {
 128         wxFAIL_MSG( wxT("wxBitmapButton creation failed") );
 129         return FALSE;
 130     }
 131
 132     m_bitmap   = bitmap;
 133     m_disabled = bitmap;
 134     m_focus    = bitmap;
 135     m_selected = bitmap;
 136
 137     m_widget = gtk_button_new();
 138
 139 #if (GTK_MINOR_VERSION > 0)
 140     if (style & wxNO_BORDER)
 141        gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
 142 #endif
 143
 144     if (m_bitmap.Ok())
 145     {
 146         wxSize newSize = size;
 147
 148         GdkBitmap *mask = (GdkBitmap *) NULL;
 149         if (m_bitmap.GetMask()) mask = m_bitmap.GetMask()->GetBitmap();
 150         GtkWidget *pixmap = gtk_pixmap_new( m_bitmap.GetPixmap(), mask );
 151
 152         gtk_widget_show( pixmap );
 153         gtk_container_add( GTK_CONTAINER(m_widget), pixmap );
 154
 155         int border = 10;
 156         if (style & wxNO_BORDER) border = 4;
 157         if (newSize.x == -1) newSize.x = m_bitmap.GetWidth()+border;
 158         if (newSize.y == -1) newSize.y = m_bitmap.GetHeight()+border;
 159         SetSize( newSize.x, newSize.y );
 160     }
 161
 162     gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
 163       GTK_SIGNAL_FUNC(gtk_bmpbutton_clicked_callback), (gpointer*)this );
 164
 165     gtk_signal_connect( GTK_OBJECT(m_widget), "enter",
 166       GTK_SIGNAL_FUNC(gtk_bmpbutton_enter_callback), (gpointer*)this );
 167     gtk_signal_connect( GTK_OBJECT(m_widget), "leave",
 168       GTK_SIGNAL_FUNC(gtk_bmpbutton_leave_callback), (gpointer*)this );
 169     gtk_signal_connect( GTK_OBJECT(m_widget), "pressed",
 170       GTK_SIGNAL_FUNC(gtk_bmpbutton_press_callback), (gpointer*)this );
 171     gtk_signal_connect( GTK_OBJECT(m_widget), "released",
 172       GTK_SIGNAL_FUNC(gtk_bmpbutton_release_callback), (gpointer*)this );
 173
 174     m_parent->DoAddChild( this );
 175
 176     PostCreation();
 177
 178     SetBackgroundColour( parent->GetBackgroundColour() );
 179
 180     Show( TRUE );
 181
 182     return TRUE;
 183 }
 184
 185 void wxBitmapButton::SetDefault()
 186 {
 187     GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
 188     gtk_widget_grab_default( m_widget );
 189
 190     SetSize( m_x, m_y, m_width, m_height );
 191 }
 192
 193 void wxBitmapButton::SetLabel( const wxString &label )
 194 {
 195     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 196
 197     wxControl::SetLabel( label );
 198 }
 199
 200 wxString wxBitmapButton::GetLabel() const
 201 {
 202     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid button") );
 203
 204     return wxControl::GetLabel();
 205 }
 206
 207 void wxBitmapButton::ApplyWidgetStyle()
 208 {
 209 }
 210
 211 void wxBitmapButton::SetBitmap()
 212 {
 213     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 214
 215     wxBitmap the_one;
 216
 217     if (!m_isEnabled)
 218         the_one = m_disabled;
 219     else
 220     {
 221         if (m_isSelected)
 222         {
 223             the_one = m_selected;
 224         }
 225         else
 226         {
 227             if (m_hasFocus)
 228                 the_one = m_focus;
 229             else
 230                 the_one = m_bitmap;
 231         }
 232     }
 233
 234     if (!the_one.Ok()) the_one = m_bitmap;
 235     if (!the_one.Ok()) return;
 236
 237     GtkButton *bin = GTK_BUTTON( m_widget );
 238     GtkPixmap *g_pixmap = GTK_PIXMAP( bin->child );
 239
 240     GdkBitmap *mask = (GdkBitmap *) NULL;
 241     if (the_one.GetMask()) mask = the_one.GetMask()->GetBitmap();
 242
 243     gtk_pixmap_set( g_pixmap, the_one.GetPixmap(), mask );
 244 }
 245
 246 void wxBitmapButton::SetBitmapDisabled( const wxBitmap& bitmap )
 247 {
 248   wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 249
 250   if ( ! m_disabled.Ok() ) return;
 251   m_disabled = bitmap;
 252
 253   SetBitmap();
 254 }
 255
 256 void wxBitmapButton::SetBitmapFocus( const wxBitmap& bitmap )
 257 {
 258     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 259
 260     if ( ! m_focus.Ok() ) return;
 261     m_focus = bitmap;
 262
 263     SetBitmap();
 264 }
 265
 266 void wxBitmapButton::SetBitmapLabel( const wxBitmap& bitmap )
 267 {
 268     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 269
 270     if (!m_bitmap.Ok()) return;
 271     m_bitmap = bitmap;
 272
 273     SetBitmap();
 274 }
 275
 276 void wxBitmapButton::SetBitmapSelected( const wxBitmap& bitmap )
 277 {
 278     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 279
 280     if ( ! m_selected.Ok() ) return;
 281     m_selected = bitmap;
 282
 283     SetBitmap();
 284 }
 285
 286 bool wxBitmapButton::Enable( bool enable )
 287 {
 288     if ( !wxWindow::Enable(enable) )
 289         return FALSE;
 290
 291     SetBitmap();
 292
 293     return TRUE;
 294 }
 295
 296 void wxBitmapButton::HasFocus()
 297 {
 298     m_hasFocus = TRUE;
 299     SetBitmap();
 300 }
 301
 302 void wxBitmapButton::NotFocus()
 303 {
 304     m_hasFocus = FALSE;
 305     SetBitmap();
 306 }
 307
 308 void wxBitmapButton::StartSelect()
 309 {
 310     m_isSelected = TRUE;
 311     SetBitmap();
 312 }
 313
 314 void wxBitmapButton::EndSelect()
 315 {
 316     m_isSelected = FALSE;
 317     SetBitmap();
 318 }
 319
 320 #endif // wxUSE_BMPBUTTON
 321