src/gtk1/bmpbuttn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk1/bmpbuttn.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Copyright:   (c) 1998 Robert Roebling
   6 // Licence:     wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 // For compilers that support precompilation, includes "wx.h".
  10 #include "wx/wxprec.h"
  11
  12 #if wxUSE_BMPBUTTON
  13
  14 #include "wx/bmpbuttn.h"
  15
  16 #include "wx/gtk1/private.h"
  17
  18 //-----------------------------------------------------------------------------
  19 // classes
  20 //-----------------------------------------------------------------------------
  21
  22 class wxBitmapButton;
  23
  24 //-----------------------------------------------------------------------------
  25 // idle system
  26 //-----------------------------------------------------------------------------
  27
  28 extern void wxapp_install_idle_handler();
  29 extern bool g_isIdle;
  30
  31 //-----------------------------------------------------------------------------
  32 // data
  33 //-----------------------------------------------------------------------------
  34
  35 extern bool   g_blockEventsOnDrag;
  36
  37 //-----------------------------------------------------------------------------
  38 // "clicked"
  39 //-----------------------------------------------------------------------------
  40
  41 extern "C" {
  42 static void gtk_bmpbutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  43 {
  44     if (g_isIdle)
  45         wxapp_install_idle_handler();
  46
  47     if (!button->m_hasVMT) return;
  48     if (g_blockEventsOnDrag) return;
  49
  50     wxCommandEvent event(wxEVT_BUTTON, button->GetId());
  51     event.SetEventObject(button);
  52     button->HandleWindowEvent(event);
  53 }
  54 }
  55
  56 //-----------------------------------------------------------------------------
  57 // "enter"
  58 //-----------------------------------------------------------------------------
  59
  60 extern "C" {
  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->GTKSetHasFocus();
  67 }
  68 }
  69
  70 //-----------------------------------------------------------------------------
  71 // "leave"
  72 //-----------------------------------------------------------------------------
  73
  74 extern "C" {
  75 static void gtk_bmpbutton_leave_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  76 {
  77     if (!button->m_hasVMT) return;
  78     if (g_blockEventsOnDrag) return;
  79
  80     button->GTKSetNotFocus();
  81 }
  82 }
  83
  84 //-----------------------------------------------------------------------------
  85 // "pressed"
  86 //-----------------------------------------------------------------------------
  87
  88 extern "C" {
  89 static void gtk_bmpbutton_press_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  90 {
  91     if (!button->m_hasVMT) return;
  92     if (g_blockEventsOnDrag) return;
  93
  94     button->StartSelect();
  95 }
  96 }
  97
  98 //-----------------------------------------------------------------------------
  99 // "released"
 100 //-----------------------------------------------------------------------------
 101
 102 extern "C" {
 103 static void gtk_bmpbutton_release_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
 104 {
 105     if (!button->m_hasVMT) return;
 106     if (g_blockEventsOnDrag) return;
 107
 108     button->EndSelect();
 109 }
 110 }
 111
 112 //-----------------------------------------------------------------------------
 113 // wxBitmapButton
 114 //-----------------------------------------------------------------------------
 115
 116 void wxBitmapButton::Init()
 117 {
 118     m_hasFocus =
 119     m_isSelected = false;
 120 }
 121
 122 bool wxBitmapButton::Create( wxWindow *parent,
 123                              wxWindowID id,
 124                              const wxBitmap& bitmap,
 125                              const wxPoint& pos,
 126                              const wxSize& size,
 127                              long style,
 128                              const wxValidator& validator,
 129                              const wxString &name )
 130 {
 131     m_needParent = true;
 132     m_acceptsFocus = true;
 133
 134     if (!PreCreation( parent, pos, size ) ||
 135         !CreateBase( parent, id, pos, size, style, validator, name ))
 136     {
 137         wxFAIL_MSG( wxT("wxBitmapButton creation failed") );
 138         return false;
 139     }
 140
 141     m_bitmaps[State_Normal] = bitmap;
 142
 143     m_widget = gtk_button_new();
 144
 145     if (style & wxNO_BORDER)
 146        gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
 147
 148     if (bitmap.IsOk())
 149     {
 150         OnSetBitmap();
 151     }
 152
 153     gtk_signal_connect_after( GTK_OBJECT(m_widget), "clicked",
 154       GTK_SIGNAL_FUNC(gtk_bmpbutton_clicked_callback), (gpointer*)this );
 155
 156     gtk_signal_connect( GTK_OBJECT(m_widget), "enter",
 157       GTK_SIGNAL_FUNC(gtk_bmpbutton_enter_callback), (gpointer*)this );
 158     gtk_signal_connect( GTK_OBJECT(m_widget), "leave",
 159       GTK_SIGNAL_FUNC(gtk_bmpbutton_leave_callback), (gpointer*)this );
 160     gtk_signal_connect( GTK_OBJECT(m_widget), "pressed",
 161       GTK_SIGNAL_FUNC(gtk_bmpbutton_press_callback), (gpointer*)this );
 162     gtk_signal_connect( GTK_OBJECT(m_widget), "released",
 163       GTK_SIGNAL_FUNC(gtk_bmpbutton_release_callback), (gpointer*)this );
 164
 165     m_parent->DoAddChild( this );
 166
 167     PostCreation(size);
 168
 169     return true;
 170 }
 171
 172 void wxBitmapButton::SetLabel( const wxString &label )
 173 {
 174     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 175
 176     wxControl::SetLabel( label );
 177 }
 178
 179 void wxBitmapButton::DoApplyWidgetStyle(GtkRcStyle *style)
 180 {
 181     if ( !BUTTON_CHILD(m_widget) )
 182         return;
 183
 184     wxButton::DoApplyWidgetStyle(style);
 185 }
 186
 187 void wxBitmapButton::OnSetBitmap()
 188 {
 189     wxCHECK_RET( m_widget != NULL, wxT("invalid bitmap button") );
 190
 191     InvalidateBestSize();
 192
 193     wxBitmap the_one;
 194     if (!IsThisEnabled())
 195         the_one = GetBitmapDisabled();
 196    else if (m_isSelected)
 197      the_one = GetBitmapPressed();
 198    else if (HasFocus())
 199      the_one = GetBitmapFocus();
 200
 201    if (!the_one.IsOk())
 202      {
 203          the_one = GetBitmapLabel();
 204          if (!the_one.IsOk())
 205              return;
 206      }
 207
 208     GdkBitmap *mask = NULL;
 209     if (the_one.GetMask()) mask = the_one.GetMask()->GetBitmap();
 210
 211     GtkWidget *child = BUTTON_CHILD(m_widget);
 212     if (child == NULL)
 213     {
 214         // initial bitmap
 215         GtkWidget *pixmap;
 216         pixmap = gtk_pixmap_new(the_one.GetPixmap(), mask);
 217         gtk_widget_show(pixmap);
 218         gtk_container_add(GTK_CONTAINER(m_widget), pixmap);
 219     }
 220     else
 221     {   // subsequent bitmaps
 222         GtkPixmap *pixmap = GTK_PIXMAP(child);
 223         gtk_pixmap_set(pixmap, the_one.GetPixmap(), mask);
 224     }
 225 }
 226
 227 wxSize wxBitmapButton::DoGetBestSize() const
 228 {
 229     return wxControl::DoGetBestSize();
 230 }
 231
 232 bool wxBitmapButton::Enable( bool enable )
 233 {
 234     if ( !wxWindow::Enable(enable) )
 235         return false;
 236
 237     OnSetBitmap();
 238
 239     return true;
 240 }
 241
 242 void wxBitmapButton::GTKSetHasFocus()
 243 {
 244     m_hasFocus = true;
 245     OnSetBitmap();
 246 }
 247
 248 void wxBitmapButton::GTKSetNotFocus()
 249 {
 250     m_hasFocus = false;
 251     OnSetBitmap();
 252 }
 253
 254 void wxBitmapButton::StartSelect()
 255 {
 256     m_isSelected = true;
 257     OnSetBitmap();
 258 }
 259
 260 void wxBitmapButton::EndSelect()
 261 {
 262     m_isSelected = false;
 263     OnSetBitmap();
 264 }
 265
 266 #endif // wxUSE_BMPBUTTON