src/gtk1/bmpbuttn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk1/bmpbuttn.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #if wxUSE_BMPBUTTON
  14
  15 #include "wx/bmpbuttn.h"
  16
  17 #include "wx/gtk1/private.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 extern "C" {
  43 static void gtk_bmpbutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  44 {
  45     if (g_isIdle)
  46         wxapp_install_idle_handler();
  47
  48     if (!button->m_hasVMT) return;
  49     if (g_blockEventsOnDrag) return;
  50
  51     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
  52     event.SetEventObject(button);
  53     button->GetEventHandler()->ProcessEvent(event);
  54 }
  55 }
  56
  57 //-----------------------------------------------------------------------------
  58 // "enter"
  59 //-----------------------------------------------------------------------------
  60
  61 extern "C" {
  62 static void gtk_bmpbutton_enter_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  63 {
  64     if (!button->m_hasVMT) return;
  65     if (g_blockEventsOnDrag) return;
  66
  67     button->HasFocus();
  68 }
  69 }
  70
  71 //-----------------------------------------------------------------------------
  72 // "leave"
  73 //-----------------------------------------------------------------------------
  74
  75 extern "C" {
  76 static void gtk_bmpbutton_leave_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  77 {
  78     if (!button->m_hasVMT) return;
  79     if (g_blockEventsOnDrag) return;
  80
  81     button->NotFocus();
  82 }
  83 }
  84
  85 //-----------------------------------------------------------------------------
  86 // "pressed"
  87 //-----------------------------------------------------------------------------
  88
  89 extern "C" {
  90 static void gtk_bmpbutton_press_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
  91 {
  92     if (!button->m_hasVMT) return;
  93     if (g_blockEventsOnDrag) return;
  94
  95     button->StartSelect();
  96 }
  97 }
  98
  99 //-----------------------------------------------------------------------------
 100 // "released"
 101 //-----------------------------------------------------------------------------
 102
 103 extern "C" {
 104 static void gtk_bmpbutton_release_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
 105 {
 106     if (!button->m_hasVMT) return;
 107     if (g_blockEventsOnDrag) return;
 108
 109     button->EndSelect();
 110 }
 111 }
 112
 113 //-----------------------------------------------------------------------------
 114 // wxBitmapButton
 115 //-----------------------------------------------------------------------------
 116
 117 IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton,wxButton)
 118
 119 void wxBitmapButton::Init()
 120 {
 121     m_hasFocus =
 122     m_isSelected = false;
 123 }
 124
 125 bool wxBitmapButton::Create( wxWindow *parent,
 126                              wxWindowID id,
 127                              const wxBitmap& bitmap,
 128                              const wxPoint& pos,
 129                              const wxSize& size,
 130                              long style,
 131                              const wxValidator& validator,
 132                              const wxString &name )
 133 {
 134     m_needParent = true;
 135     m_acceptsFocus = true;
 136
 137     if (!PreCreation( parent, pos, size ) ||
 138         !CreateBase( parent, id, pos, size, style, validator, name ))
 139     {
 140         wxFAIL_MSG( wxT("wxBitmapButton creation failed") );
 141         return false;
 142     }
 143
 144     m_bmpNormal = bitmap;
 145
 146     m_widget = gtk_button_new();
 147
 148     if (style & wxNO_BORDER)
 149        gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
 150
 151     if (m_bmpNormal.Ok())
 152     {
 153         OnSetBitmap();
 154     }
 155
 156     gtk_signal_connect_after( GTK_OBJECT(m_widget), "clicked",
 157       GTK_SIGNAL_FUNC(gtk_bmpbutton_clicked_callback), (gpointer*)this );
 158
 159     gtk_signal_connect( GTK_OBJECT(m_widget), "enter",
 160       GTK_SIGNAL_FUNC(gtk_bmpbutton_enter_callback), (gpointer*)this );
 161     gtk_signal_connect( GTK_OBJECT(m_widget), "leave",
 162       GTK_SIGNAL_FUNC(gtk_bmpbutton_leave_callback), (gpointer*)this );
 163     gtk_signal_connect( GTK_OBJECT(m_widget), "pressed",
 164       GTK_SIGNAL_FUNC(gtk_bmpbutton_press_callback), (gpointer*)this );
 165     gtk_signal_connect( GTK_OBJECT(m_widget), "released",
 166       GTK_SIGNAL_FUNC(gtk_bmpbutton_release_callback), (gpointer*)this );
 167
 168     m_parent->DoAddChild( this );
 169
 170     PostCreation(size);
 171
 172     return true;
 173 }
 174
 175 void wxBitmapButton::SetDefault()
 176 {
 177     GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
 178     gtk_widget_grab_default( m_widget );
 179
 180     SetSize( m_x, m_y, m_width, m_height );
 181 }
 182
 183 void wxBitmapButton::SetLabel( const wxString &label )
 184 {
 185     wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
 186
 187     wxControl::SetLabel( label );
 188 }
 189
 190 void wxBitmapButton::DoApplyWidgetStyle(GtkRcStyle *style)
 191 {
 192     if ( !BUTTON_CHILD(m_widget) )
 193         return;
 194
 195     wxButton::DoApplyWidgetStyle(style);
 196 }
 197
 198 void wxBitmapButton::OnSetBitmap()
 199 {
 200     wxCHECK_RET( m_widget != NULL, wxT("invalid bitmap button") );
 201
 202     InvalidateBestSize();
 203
 204     wxBitmap the_one;
 205     if (!m_isEnabled)
 206         the_one = m_bmpDisabled;
 207     else if (m_isSelected)
 208         the_one = m_bmpSelected;
 209     else if (m_hasFocus)
 210         the_one = m_bmpFocus;
 211     else
 212         the_one = m_bmpNormal;
 213
 214     if (!the_one.Ok()) the_one = m_bmpNormal;
 215     if (!the_one.Ok()) return;
 216
 217     GdkBitmap *mask = (GdkBitmap *) NULL;
 218     if (the_one.GetMask()) mask = the_one.GetMask()->GetBitmap();
 219
 220     GtkWidget *child = BUTTON_CHILD(m_widget);
 221     if (child == NULL)
 222     {
 223         // initial bitmap
 224         GtkWidget *pixmap;
 225         pixmap = gtk_pixmap_new(the_one.GetPixmap(), mask);
 226         gtk_widget_show(pixmap);
 227         gtk_container_add(GTK_CONTAINER(m_widget), pixmap);
 228     }
 229     else
 230     {   // subsequent bitmaps
 231         GtkPixmap *pixmap = GTK_PIXMAP(child);
 232         gtk_pixmap_set(pixmap, the_one.GetPixmap(), mask);
 233     }
 234 }
 235
 236 wxSize wxBitmapButton::DoGetBestSize() const
 237 {
 238     return wxControl::DoGetBestSize();
 239 }
 240
 241 bool wxBitmapButton::Enable( bool enable )
 242 {
 243     if ( !wxWindow::Enable(enable) )
 244         return false;
 245
 246     OnSetBitmap();
 247
 248     return true;
 249 }
 250
 251 void wxBitmapButton::HasFocus()
 252 {
 253     m_hasFocus = true;
 254     OnSetBitmap();
 255 }
 256
 257 void wxBitmapButton::NotFocus()
 258 {
 259     m_hasFocus = false;
 260     OnSetBitmap();
 261 }
 262
 263 void wxBitmapButton::StartSelect()
 264 {
 265     m_isSelected = true;
 266     OnSetBitmap();
 267 }
 268
 269 void wxBitmapButton::EndSelect()
 270 {
 271     m_isSelected = false;
 272     OnSetBitmap();
 273 }
 274
 275 #endif // wxUSE_BMPBUTTON