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->m_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->m_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->m_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->m_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->m_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 (GTK_MINOR_VERSION > 0)
 135     if (style & wxNO_BORDER)
 136        gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
 137 #endif
 138
 139     if (m_bitmap.Ok())
 140     {
 141         GdkBitmap *mask = (GdkBitmap *) NULL;
 142         if (m_bitmap.GetMask()) mask = m_bitmap.GetMask()->GetBitmap();
 143         GtkWidget *pixmap = gtk_pixmap_new( m_bitmap.GetPixmap(), mask );
 144
 145         gtk_widget_show( pixmap );
 146         gtk_container_add( GTK_CONTAINER(m_widget), pixmap );
 147     }
 148
 149     int border = 10;
 150     if (style & wxNO_BORDER) border = 4;
 151     if (newSize.x == -1) newSize.x = m_bitmap.GetWidth()+border;
 152     if (newSize.y == -1) newSize.y = m_bitmap.GetHeight()+border;
 153     SetSize( newSize.x, newSize.y );
 154
 155     gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
 156       GTK_SIGNAL_FUNC(gtk_bmpbutton_clicked_callback), (gpointer*)this );
 157
 158     gtk_signal_connect( GTK_OBJECT(m_widget), "enter",
 159       GTK_SIGNAL_FUNC(gtk_bmpbutton_enter_callback), (gpointer*)this );
 160     gtk_signal_connect( GTK_OBJECT(m_widget), "leave",
 161       GTK_SIGNAL_FUNC(gtk_bmpbutton_leave_callback), (gpointer*)this );
 162     gtk_signal_connect( GTK_OBJECT(m_widget), "pressed",
 163       GTK_SIGNAL_FUNC(gtk_bmpbutton_press_callback), (gpointer*)this );
 164     gtk_signal_connect( GTK_OBJECT(m_widget), "released",
 165       GTK_SIGNAL_FUNC(gtk_bmpbutton_release_callback), (gpointer*)this );
 166
 167     m_parent->DoAddChild( this );
 168
 169     PostCreation();
 170
 171     SetBackgroundColour( parent->GetBackgroundColour() );
 172
 173     Show( TRUE );
 174
 175     return TRUE;
 176 }
 177
 178 void wxBitmapButton::SetDefault()
 179 {
 180     GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
 181     gtk_widget_grab_default( m_widget );
 182
 183     SetSize( m_x, m_y, m_width, m_height );
 184 }
 185
 186 void wxBitmapButton::SetLabel( const wxString &label )
 187 {
 188     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 189
 190     wxControl::SetLabel( label );
 191 }
 192
 193 wxString wxBitmapButton::GetLabel() const
 194 {
 195     wxCHECK_MSG( m_widget != NULL, _T(""), _T("invalid button") );
 196
 197     return wxControl::GetLabel();
 198 }
 199
 200 void wxBitmapButton::ApplyWidgetStyle()
 201 {
 202 }
 203
 204 void wxBitmapButton::SetBitmap()
 205 {
 206     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 207
 208     wxBitmap the_one;
 209
 210     if (!m_isEnabled)
 211         the_one = m_disabled;
 212     else
 213     {
 214         if (m_isSelected)
 215         {
 216             the_one = m_selected;
 217         }
 218         else
 219         {
 220             if (m_hasFocus)
 221                 the_one = m_focus;
 222             else
 223                 the_one = m_bitmap;
 224         }
 225     }
 226
 227     if (!the_one.Ok()) the_one = m_bitmap;
 228     if (!the_one.Ok()) return;
 229
 230     GtkButton *bin = GTK_BUTTON( m_widget );
 231     GtkPixmap *g_pixmap = GTK_PIXMAP( bin->child );
 232
 233     GdkBitmap *mask = (GdkBitmap *) NULL;
 234     if (the_one.GetMask()) mask = the_one.GetMask()->GetBitmap();
 235
 236     gtk_pixmap_set( g_pixmap, the_one.GetPixmap(), mask );
 237 }
 238
 239 void wxBitmapButton::SetBitmapDisabled( const wxBitmap& bitmap )
 240 {
 241   wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 242
 243   if ( ! m_disabled.Ok() ) return;
 244   m_disabled = bitmap;
 245
 246   SetBitmap();
 247 }
 248
 249 void wxBitmapButton::SetBitmapFocus( const wxBitmap& bitmap )
 250 {
 251     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 252
 253     if ( ! m_focus.Ok() ) return;
 254     m_focus = bitmap;
 255
 256     SetBitmap();
 257 }
 258
 259 void wxBitmapButton::SetBitmapLabel( const wxBitmap& bitmap )
 260 {
 261     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 262
 263     if (!m_bitmap.Ok()) return;
 264     m_bitmap = bitmap;
 265
 266     SetBitmap();
 267 }
 268
 269 void wxBitmapButton::SetBitmapSelected( const wxBitmap& bitmap )
 270 {
 271     wxCHECK_RET( m_widget != NULL, _T("invalid button") );
 272
 273     if ( ! m_selected.Ok() ) return;
 274     m_selected = bitmap;
 275
 276     SetBitmap();
 277 }
 278
 279 bool wxBitmapButton::Enable( bool enable )
 280 {
 281     if ( !wxWindow::Enable(enable) )
 282         return FALSE;
 283
 284     SetBitmap();
 285
 286     return TRUE;
 287 }
 288
 289 void wxBitmapButton::HasFocus()
 290 {
 291     m_hasFocus = TRUE;
 292     SetBitmap();
 293 }
 294
 295 void wxBitmapButton::NotFocus()
 296 {
 297     m_hasFocus = FALSE;
 298     SetBitmap();
 299 }
 300
 301 void wxBitmapButton::StartSelect()
 302 {
 303     m_isSelected = TRUE;
 304     SetBitmap();
 305 }
 306
 307 void wxBitmapButton::EndSelect()
 308 {
 309     m_isSelected = FALSE;
 310     SetBitmap();
 311 }