use a GtkAlignment to position m_mainWidget, avoiding need to re-size_allocate it

[wxWidgets.git] / src / gtk / statbox.cpp

diff --git a/src/gtk/statbox.cpp b/src/gtk/statbox.cpp
index d6a4a6852bbd139a6f24c8dcf4e0b7eae12521c8..c8c14a446a2afbae0b4cbe6dde4376e8bee822be 100644 (file)
--- a/src/gtk/statbox.cpp
+++ b/src/gtk/statbox.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        statbox.cpp
+// Name:        gtk/statbox.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
@@ -7,77 +7,159 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-#pragma implementation "statbox.h"
-#endif
-
-#include "wx/statbox.h"
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
 
 #if wxUSE_STATBOX
 
+#include "wx/statbox.h"
+#include "wx/gtk/private.h"
+
 #include "gdk/gdk.h"
 #include "gtk/gtk.h"
 
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// constants taken from GTK sources
+#define LABEL_PAD 1
+#define LABEL_SIDE_PAD 2
+
+//-----------------------------------------------------------------------------
+// "gtk_frame_size_allocate" signal
+//-----------------------------------------------------------------------------
+
+extern "C" {
+
+static void
+gtk_frame_size_allocate (GtkWidget     *widget,
+                         GtkAllocation *allocation,
+                         wxStaticBox * WXUNUSED(box))
+{
+    GtkFrame *frame = GTK_FRAME (widget);
+
+    // this handler gets called _after_ the GTK+'s own signal handler; thus we
+    // need to fix only the width of the GtkLabel
+    // (everything else has already been handled by the GTK+ signal handler).
+
+    if (frame->label_widget && GTK_WIDGET_VISIBLE (frame->label_widget))
+    {
+        GtkAllocation ca = frame->label_widget->allocation;
+
+        // we want the GtkLabel to not exceed maxWidth:
+        int maxWidth = allocation->width - 2*LABEL_SIDE_PAD - 2*LABEL_PAD;
+        maxWidth = wxMax(2, maxWidth);      // maxWidth must always be positive!
+
+        // truncate the label to the GtkFrame width...
+        ca.width = wxMin(ca.width, maxWidth);
+        gtk_widget_size_allocate(frame->label_widget, &ca);
+    }
+}
+
+}
+
+
 //-----------------------------------------------------------------------------
 // wxStaticBox
 //-----------------------------------------------------------------------------
 
-IMPLEMENT_DYNAMIC_CLASS(wxStaticBox,wxControl)
+IMPLEMENT_DYNAMIC_CLASS(wxStaticBox, wxControl)
 
-wxStaticBox::wxStaticBox(void)
+wxStaticBox::wxStaticBox()
 {
 }
 
-wxStaticBox::wxStaticBox( wxWindow *parent, wxWindowID id, const wxString &label,
-      const wxPoint &pos, const wxSize &size,
-      long style, const wxString &name )
+wxStaticBox::wxStaticBox( wxWindow *parent,
+                          wxWindowID id,
+                          const wxString &label,
+                          const wxPoint& pos,
+                          const wxSize& size,
+                          long style,
+                          const wxString& name )
 {
     Create( parent, id, label, pos, size, style, name );
 }
 
-bool wxStaticBox::Create( wxWindow *parent, wxWindowID id, const wxString &label,
-      const wxPoint &pos, const wxSize &size,
-      long style, const wxString &name )
+bool wxStaticBox::Create( wxWindow *parent,
+                          wxWindowID id,
+                          const wxString& label,
+                          const wxPoint& pos,
+                          const wxSize& size,
+                          long style,
+                          const wxString& name )
 {
-    m_needParent = TRUE;
-
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
     {
         wxFAIL_MSG( wxT("wxStaticBox creation failed") );
-       return FALSE;
+        return false;
     }
 
-    m_isStaticBox = TRUE;
-    
-    m_widget = gtk_frame_new(m_label.mbc_str());
+    m_widget = GTKCreateFrame(label);
+    wxControl::SetLabel(label);
 
     m_parent->DoAddChild( this );
-  
-    PostCreation();
 
-    SetLabel(label);
-  
-    SetBackgroundColour( parent->GetBackgroundColour() );
-    SetForegroundColour( parent->GetForegroundColour() );
-    SetFont( parent->GetFont() );
+    PostCreation(size);
+
+    // need to set non default alignment?
+    gfloat xalign;
+    if ( style & wxALIGN_CENTER )
+        xalign = 0.5;
+    else if ( style & wxALIGN_RIGHT )
+        xalign = 1.0;
+    else // wxALIGN_LEFT
+        xalign = 0.0;
+
+    if ( style & (wxALIGN_RIGHT | wxALIGN_CENTER) ) // left alignment is default
+        gtk_frame_set_label_align(GTK_FRAME( m_widget ), xalign, 0.5);
 
-    Show( TRUE );
+    // in order to clip the label widget, we must connect to the size allocate
+    // signal of this GtkFrame after the default GTK+'s allocate size function
+    g_signal_connect_after (m_widget, "size_allocate",
+                            G_CALLBACK (gtk_frame_size_allocate), this);
 
     return TRUE;
 }
 
-void wxStaticBox::SetLabel( const wxString &label )
+void wxStaticBox::SetLabel( const wxString& label )
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid staticbox") );
+
+    GTKSetLabelForFrame(GTK_FRAME(m_widget), label);
+}
+
+void wxStaticBox::DoApplyWidgetStyle(GtkRcStyle *style)
+{
+    GTKFrameApplyWidgetStyle(GTK_FRAME(m_widget), style);
+}
+
+bool wxStaticBox::GTKWidgetNeedsMnemonic() const
+{
+    return true;
+}
+
+void wxStaticBox::GTKWidgetDoSetMnemonic(GtkWidget* w)
 {
-    wxControl::SetLabel( label );
-    GtkFrame *frame = GTK_FRAME( m_widget );
-    gtk_frame_set_label( frame, GetLabel().mbc_str() );
+    GTKFrameSetMnemonicWidget(GTK_FRAME(m_widget), w);
 }
 
-void wxStaticBox::ApplyWidgetStyle()
+// static
+wxVisualAttributes
+wxStaticBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 {
-    SetWidgetStyle();
-    gtk_widget_set_style( m_widget, m_widgetStyle );
+    return GetDefaultAttributesFromGTKWidget(gtk_frame_new);
+}
+
+
+void wxStaticBox::GetBordersForSizer(int *borderTop, int *borderOther) const
+{
+    const int BORDER = 5; // FIXME: hardcoded value
+
+    *borderTop = GetLabel().empty() ? 2*BORDER : GetCharHeight();
+    *borderOther = BORDER;
 }
 
-#endif
+#endif // wxUSE_STATBOX