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)
  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     if (!PreCreation( parent, pos, size ) ||
 123         !CreateBase( parent, id, pos, size, style, validator, name ))
 124     {
 125         wxFAIL_MSG( wxT("wxBitmapButton creation failed") );
 126         return FALSE;
 127     }
 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         wxSize newSize = size;
 146
 147         GdkBitmap *mask = (GdkBitmap *) NULL;
 148         if (m_bitmap.GetMask()) mask = m_bitmap.GetMask()->GetBitmap();
 149         GtkWidget *pixmap = gtk_pixmap_new( m_bitmap.GetPixmap(), mask );
 150
 151         gtk_widget_show( pixmap );
 152         gtk_container_add( GTK_CONTAINER(m_widget), pixmap );
 153
 154         int border = 10;
 155         if (style & wxNO_BORDER) border = 4;
 156         if (newSize.x == -1) newSize.x = m_bitmap.GetWidth()+border;
 157         if (newSize.y == -1) newSize.y = m_bitmap.GetHeight()+border;
 158         SetSize( newSize.x, newSize.y );
 159     }
 160
 161     gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
 162       GTK_SIGNAL_FUNC(gtk_bmpbutton_clicked_callback), (gpointer*)this );
 163
 164     gtk_signal_connect( GTK_OBJECT(m_widget), "enter",
 165       GTK_SIGNAL_FUNC(gtk_bmpbutton_enter_callback), (gpointer*)this );
 166     gtk_signal_connect( GTK_OBJECT(m_widget), "leave",
 167       GTK_SIGNAL_FUNC(gtk_bmpbutton_leave_callback), (gpointer*)this );
 168     gtk_signal_connect( GTK_OBJECT(m_widget), "pressed",
 169       GTK_SIGNAL_FUNC(gtk_bmpbutton_press_callback), (gpointer*)this );
 170     gtk_signal_connect( GTK_OBJECT(m_widget), "released",
 171       GTK_SIGNAL_FUNC(gtk_bmpbutton_release_callback), (gpointer*)this );
 172
 173     m_parent->DoAddChild( this );
 174
 175     PostCreation();
 176
 177     SetBackgroundColour( parent->GetBackgroundColour() );
 178
 179     Show( TRUE );
 180
 181     return TRUE;
 182 }
 183
 184 void wxBitmapButton::SetDefault()
 185 {
 186     GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
 187     gtk_widget_grab_default( m_widget );
 188
 189     SetSize( m_x, m_y, m_width, m_height );
 190 }
 191
 192 void wxBitmapButton::SetLabel( const wxString &label )
 193 {
 194     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 195
 196     wxControl::SetLabel( label );
 197 }
 198
 199 wxString wxBitmapButton::GetLabel() const
 200 {
 201     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid button") );
 202
 203     return wxControl::GetLabel();
 204 }
 205
 206 void wxBitmapButton::ApplyWidgetStyle()
 207 {
 208 }
 209
 210 void wxBitmapButton::SetBitmap()
 211 {
 212     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 213
 214     wxBitmap the_one;
 215
 216     if (!m_isEnabled)
 217         the_one = m_disabled;
 218     else
 219     {
 220         if (m_isSelected)
 221         {
 222             the_one = m_selected;
 223         }
 224         else
 225         {
 226             if (m_hasFocus)
 227                 the_one = m_focus;
 228             else
 229                 the_one = m_bitmap;
 230         }
 231     }
 232
 233     if (!the_one.Ok()) the_one = m_bitmap;
 234     if (!the_one.Ok()) return;
 235
 236     GtkButton *bin = GTK_BUTTON( m_widget );
 237     GtkPixmap *g_pixmap = GTK_PIXMAP( bin->child );
 238
 239     GdkBitmap *mask = (GdkBitmap *) NULL;
 240     if (the_one.GetMask()) mask = the_one.GetMask()->GetBitmap();
 241
 242     gtk_pixmap_set( g_pixmap, the_one.GetPixmap(), mask );
 243 }
 244
 245 void wxBitmapButton::SetBitmapDisabled( const wxBitmap& bitmap )
 246 {
 247   wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 248
 249   if ( ! m_disabled.Ok() ) return;
 250   m_disabled = bitmap;
 251
 252   SetBitmap();
 253 }
 254
 255 void wxBitmapButton::SetBitmapFocus( const wxBitmap& bitmap )
 256 {
 257     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 258
 259     if ( ! m_focus.Ok() ) return;
 260     m_focus = bitmap;
 261
 262     SetBitmap();
 263 }
 264
 265 void wxBitmapButton::SetBitmapLabel( const wxBitmap& bitmap )
 266 {
 267     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 268
 269     if (!m_bitmap.Ok()) return;
 270     m_bitmap = bitmap;
 271
 272     SetBitmap();
 273 }
 274
 275 void wxBitmapButton::SetBitmapSelected( const wxBitmap& bitmap )
 276 {
 277     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 278
 279     if ( ! m_selected.Ok() ) return;
 280     m_selected = bitmap;
 281
 282     SetBitmap();
 283 }
 284
 285 bool wxBitmapButton::Enable( bool enable )
 286 {
 287     if ( !wxWindow::Enable(enable) )
 288         return FALSE;
 289
 290     SetBitmap();
 291
 292     return TRUE;
 293 }
 294
 295 void wxBitmapButton::HasFocus()
 296 {
 297     m_hasFocus = TRUE;
 298     SetBitmap();
 299 }
 300
 301 void wxBitmapButton::NotFocus()
 302 {
 303     m_hasFocus = FALSE;
 304     SetBitmap();
 305 }
 306
 307 void wxBitmapButton::StartSelect()
 308 {
 309     m_isSelected = TRUE;
 310     SetBitmap();
 311 }
 312
 313 void wxBitmapButton::EndSelect()
 314 {
 315     m_isSelected = FALSE;
 316     SetBitmap();
 317 }
 318 #endif
 319