src/gtk/statbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/statbox.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_STATBOX
  14
  15 #include "wx/statbox.h"
  16 #include "wx/gtk/private/win_gtk.h"     // for wxPizza
  17
  18 #include <gtk/gtk.h>
  19
  20 // constants taken from GTK sources
  21 #define LABEL_PAD 1
  22 #define LABEL_SIDE_PAD 2
  23
  24 //-----------------------------------------------------------------------------
  25 // "size_allocate" from m_widget
  26 //-----------------------------------------------------------------------------
  27
  28 extern "C" {
  29 static void size_allocate(GtkWidget* widget, GtkAllocation* alloc, void*)
  30 {
  31     // clip label as GTK >= 2.12 does
  32     GtkWidget* label_widget = gtk_frame_get_label_widget(GTK_FRAME(widget));
  33     int w = alloc->width -
  34         2 * widget->style->xthickness - 2 * LABEL_PAD - 2 * LABEL_SIDE_PAD;
  35     if (w < 0)
  36         w = 0;
  37
  38     if (label_widget->allocation.width > w)
  39     {
  40         GtkAllocation alloc2 = label_widget->allocation;
  41         alloc2.width = w;
  42         gtk_widget_size_allocate(label_widget, &alloc2);
  43     }
  44 }
  45 }
  46
  47 //-----------------------------------------------------------------------------
  48 // wxStaticBox
  49 //-----------------------------------------------------------------------------
  50
  51 wxStaticBox::wxStaticBox()
  52 {
  53 }
  54
  55 wxStaticBox::wxStaticBox( wxWindow *parent,
  56                           wxWindowID id,
  57                           const wxString &label,
  58                           const wxPoint& pos,
  59                           const wxSize& size,
  60                           long style,
  61                           const wxString& name )
  62 {
  63     Create( parent, id, label, pos, size, style, name );
  64 }
  65
  66 bool wxStaticBox::Create( wxWindow *parent,
  67                           wxWindowID id,
  68                           const wxString& label,
  69                           const wxPoint& pos,
  70                           const wxSize& size,
  71                           long style,
  72                           const wxString& name )
  73 {
  74     if (!PreCreation( parent, pos, size ) ||
  75         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
  76     {
  77         wxFAIL_MSG( wxT("wxStaticBox creation failed") );
  78         return false;
  79     }
  80
  81     m_widget = GTKCreateFrame(label);
  82     g_object_ref(m_widget);
  83
  84     // only base SetLabel needs to be called after GTKCreateFrame
  85     wxControl::SetLabel(label);
  86
  87     m_parent->DoAddChild( this );
  88
  89     PostCreation(size);
  90
  91     // need to set non default alignment?
  92     gfloat xalign = 0;
  93     if ( style & wxALIGN_CENTER )
  94         xalign = 0.5;
  95     else if ( style & wxALIGN_RIGHT )
  96         xalign = 1.0;
  97
  98     gtk_frame_set_label_align(GTK_FRAME(m_widget), xalign, 0.5);
  99
 100     if (gtk_check_version(2, 12, 0))
 101     {
 102         // we connect this signal to perform label-clipping as GTK >= 2.12 does
 103         g_signal_connect(m_widget, "size_allocate", G_CALLBACK(size_allocate), NULL);
 104     }
 105
 106     return true;
 107 }
 108
 109 void wxStaticBox::AddChild( wxWindowBase *child )
 110 {
 111     if (!m_wxwindow)
 112     {
 113         // make this window a container of other wxWindows by instancing a wxPizza
 114         // and packing it into the GtkFrame:
 115         m_wxwindow = wxPizza::New();
 116         gtk_widget_show( m_wxwindow );
 117         gtk_container_add( GTK_CONTAINER (m_widget), m_wxwindow );
 118     }
 119
 120     wxWindow::AddChild( child );
 121 }
 122
 123 void wxStaticBox::SetLabel( const wxString& label )
 124 {
 125     wxCHECK_RET( m_widget != NULL, wxT("invalid staticbox") );
 126
 127     GTKSetLabelForFrame(GTK_FRAME(m_widget), label);
 128 }
 129
 130 void wxStaticBox::DoApplyWidgetStyle(GtkRcStyle *style)
 131 {
 132     GTKFrameApplyWidgetStyle(GTK_FRAME(m_widget), style);
 133 }
 134
 135 bool wxStaticBox::GTKWidgetNeedsMnemonic() const
 136 {
 137     return true;
 138 }
 139
 140 void wxStaticBox::GTKWidgetDoSetMnemonic(GtkWidget* w)
 141 {
 142     GTKFrameSetMnemonicWidget(GTK_FRAME(m_widget), w);
 143 }
 144
 145 // static
 146 wxVisualAttributes
 147 wxStaticBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 148 {
 149     return GetDefaultAttributesFromGTKWidget(gtk_frame_new);
 150 }
 151
 152
 153 void wxStaticBox::GetBordersForSizer(int *borderTop, int *borderOther) const
 154 {
 155     const int BORDER = 5; // FIXME: hardcoded value
 156
 157     *borderTop = GetLabel().empty() ? 2*BORDER : GetCharHeight();
 158     *borderOther = BORDER;
 159 }
 160
 161 #endif // wxUSE_STATBOX