src/gtk/statbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 IMPLEMENT_DYNAMIC_CLASS(wxStaticBox, wxControl)
  52
  53 wxStaticBox::wxStaticBox()
  54 {
  55 }
  56
  57 wxStaticBox::wxStaticBox( wxWindow *parent,
  58                           wxWindowID id,
  59                           const wxString &label,
  60                           const wxPoint& pos,
  61                           const wxSize& size,
  62                           long style,
  63                           const wxString& name )
  64 {
  65     Create( parent, id, label, pos, size, style, name );
  66 }
  67
  68 bool wxStaticBox::Create( wxWindow *parent,
  69                           wxWindowID id,
  70                           const wxString& label,
  71                           const wxPoint& pos,
  72                           const wxSize& size,
  73                           long style,
  74                           const wxString& name )
  75 {
  76     if (!PreCreation( parent, pos, size ) ||
  77         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
  78     {
  79         wxFAIL_MSG( wxT("wxStaticBox creation failed") );
  80         return false;
  81     }
  82
  83     m_widget = GTKCreateFrame(label);
  84     g_object_ref(m_widget);
  85
  86     // only base SetLabel needs to be called after GTKCreateFrame
  87     wxControl::SetLabel(label);
  88
  89     m_parent->DoAddChild( this );
  90
  91     PostCreation(size);
  92
  93     // need to set non default alignment?
  94     gfloat xalign = 0;
  95     if ( style & wxALIGN_CENTER )
  96         xalign = 0.5;
  97     else if ( style & wxALIGN_RIGHT )
  98         xalign = 1.0;
  99
 100     gtk_frame_set_label_align(GTK_FRAME(m_widget), xalign, 0.5);
 101
 102     if (gtk_check_version(2, 12, 0))
 103     {
 104         // we connect this signal to perform label-clipping as GTK >= 2.12 does
 105         g_signal_connect(m_widget, "size_allocate", G_CALLBACK(size_allocate), NULL);
 106     }
 107
 108     return true;
 109 }
 110
 111 void wxStaticBox::AddChild( wxWindowBase *child )
 112 {
 113     if (!m_wxwindow)
 114     {
 115         // make this window a container of other wxWindows by instancing a wxPizza
 116         // and packing it into the GtkFrame:
 117         m_wxwindow = wxPizza::New();
 118         gtk_widget_show( m_wxwindow );
 119         gtk_container_add( GTK_CONTAINER (m_widget), m_wxwindow );
 120     }
 121
 122     wxWindow::AddChild( child );
 123 }
 124
 125 void wxStaticBox::SetLabel( const wxString& label )
 126 {
 127     wxCHECK_RET( m_widget != NULL, wxT("invalid staticbox") );
 128
 129     GTKSetLabelForFrame(GTK_FRAME(m_widget), label);
 130 }
 131
 132 void wxStaticBox::DoApplyWidgetStyle(GtkRcStyle *style)
 133 {
 134     GTKFrameApplyWidgetStyle(GTK_FRAME(m_widget), style);
 135 }
 136
 137 bool wxStaticBox::GTKWidgetNeedsMnemonic() const
 138 {
 139     return true;
 140 }
 141
 142 void wxStaticBox::GTKWidgetDoSetMnemonic(GtkWidget* w)
 143 {
 144     GTKFrameSetMnemonicWidget(GTK_FRAME(m_widget), w);
 145 }
 146
 147 // static
 148 wxVisualAttributes
 149 wxStaticBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 150 {
 151     return GetDefaultAttributesFromGTKWidget(gtk_frame_new);
 152 }
 153
 154
 155 void wxStaticBox::GetBordersForSizer(int *borderTop, int *borderOther) const
 156 {
 157     const int BORDER = 5; // FIXME: hardcoded value
 158
 159     *borderTop = GetLabel().empty() ? 2*BORDER : GetCharHeight();
 160     *borderOther = BORDER;
 161 }
 162
 163 #endif // wxUSE_STATBOX