Suppress various harmless warnings in MinGW build with -Wconversion.

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

diff --git a/src/gtk/stattext.cpp b/src/gtk/stattext.cpp
index b05d93c32cd2f558b367038fca6b67fcf206fdd4..7e8bfead1e8843db9c9ec2de4f32a8d5cfb86b64 100644 (file)
--- a/src/gtk/stattext.cpp
+++ b/src/gtk/stattext.cpp
@@ -1,113 +1,257 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        stattext.cpp
+// Name:        src/gtk/stattext.cpp

 // Purpose:
 // Author:      Robert Roebling
 // Purpose:
 // Author:      Robert Roebling

-// Created:     01/02/97
-// Id:
-// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
-// Licence:    wxWindows licence
+// Id:          $Id$
+// Copyright:   (c) 1998 Robert Roebling
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"

 
 

-#ifdef __GNUG__
-#pragma implementation "stattext.h"
-#endif
+#if wxUSE_STATTEXT

 
 #include "wx/stattext.h"
 
 #include "wx/stattext.h"

+#include "wx/gtk/private.h"

 
 //-----------------------------------------------------------------------------
 // wxStaticText
 //-----------------------------------------------------------------------------
 
 
 //-----------------------------------------------------------------------------
 // wxStaticText
 //-----------------------------------------------------------------------------
 

-IMPLEMENT_DYNAMIC_CLASS(wxStaticText,wxControl)
+wxStaticText::wxStaticText()
+{
+}
+
+wxStaticText::wxStaticText(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 wxStaticText::Create(wxWindow *parent,
+                          wxWindowID id,
+                          const wxString &label,
+                          const wxPoint &pos,
+                          const wxSize &size,
+                          long style,
+                          const wxString &name )
+{
+    if (!PreCreation( parent, pos, size ) ||
+        !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
+    {
+        wxFAIL_MSG( wxT("wxStaticText creation failed") );
+        return false;
+    }
+
+    m_widget = gtk_label_new(NULL);
+    g_object_ref(m_widget);
+
+    GtkJustification justify;
+    if ( style & wxALIGN_CENTER_HORIZONTAL )
+      justify = GTK_JUSTIFY_CENTER;
+    else if ( style & wxALIGN_RIGHT )
+      justify = GTK_JUSTIFY_RIGHT;
+    else
+      justify = GTK_JUSTIFY_LEFT;
+
+    if (GetLayoutDirection() == wxLayout_RightToLeft)
+    {
+        if (justify == GTK_JUSTIFY_RIGHT)
+            justify = GTK_JUSTIFY_LEFT;
+        else if (justify == GTK_JUSTIFY_LEFT)
+            justify = GTK_JUSTIFY_RIGHT;
+    }
+
+    gtk_label_set_justify(GTK_LABEL(m_widget), justify);
+
+#ifdef __WXGTK26__
+    if (!gtk_check_version(2,6,0))
+    {
+        // set ellipsize mode
+        PangoEllipsizeMode ellipsizeMode = PANGO_ELLIPSIZE_NONE;
+        if ( style & wxST_ELLIPSIZE_START )
+            ellipsizeMode = PANGO_ELLIPSIZE_START;
+        else if ( style & wxST_ELLIPSIZE_MIDDLE )
+            ellipsizeMode = PANGO_ELLIPSIZE_MIDDLE;
+        else if ( style & wxST_ELLIPSIZE_END )
+            ellipsizeMode = PANGO_ELLIPSIZE_END;
+
+        gtk_label_set_ellipsize( GTK_LABEL(m_widget), ellipsizeMode );
+    }
+#endif // __WXGTK26__
+
+    // GTK_JUSTIFY_LEFT is 0, RIGHT 1 and CENTER 2
+    static const float labelAlignments[] = { 0.0, 1.0, 0.5 };
+    gtk_misc_set_alignment(GTK_MISC(m_widget), labelAlignments[justify], 0.0);
+
+    gtk_label_set_line_wrap( GTK_LABEL(m_widget), TRUE );
+
+    SetLabel(label);
+
+    m_parent->DoAddChild( this );
+
+    PostCreation(size);
+
+    return true;
+}
+
+void wxStaticText::GTKDoSetLabel(GTKLabelSetter setter, const wxString& label)
+{
+    wxCHECK_RET( m_widget != NULL, wxT("invalid static text") );
+
+    InvalidateBestSize();
+
+    if (gtk_check_version(2,6,0) && IsEllipsized())
+    {
+        // GTK+ < 2.6 does not support ellipsization so we need to do it
+        // manually and as our ellipsization code doesn't deal with markup, we
+        // have no choice but to ignore it in this case and always use plain
+        // text.
+        GTKSetLabelForLabel(GTK_LABEL(m_widget), GetEllipsizedLabel());
+    }
+    else // Ellipsization not needed or supported by GTK+.
+    {
+        (this->*setter)(GTK_LABEL(m_widget), label);
+    }
+
+    // adjust the label size to the new label unless disabled
+    if ( !HasFlag(wxST_NO_AUTORESIZE) &&
+         !IsEllipsized() )  // if ellipsization is ON, then we don't want to get resized!
+        SetSize( GetBestSize() );
+}
+
+void wxStaticText::SetLabel(const wxString& label)
+{
+    m_labelOrig = label;
+
+    GTKDoSetLabel(&wxStaticText::GTKSetLabelForLabel, label);
+}
+
+#if wxUSE_MARKUP

 
 

-wxStaticText::wxStaticText(void)
+bool wxStaticText::DoSetLabelMarkup(const wxString& markup)

 {
 {

+    const wxString stripped = RemoveMarkup(markup);
+    if ( stripped.empty() && !markup.empty() )
+        return false;
+
+    m_labelOrig = stripped;
+
+    GTKDoSetLabel(&wxStaticText::GTKSetLabelWithMarkupForLabel, markup);
+
+    return true;

 }
 
 }
 

-wxStaticText::wxStaticText( wxWindow *parent, wxWindowID id, const wxString &label, 
-      const wxPoint &pos, const wxSize &size, 
-      long style, const wxString &name )
+#endif // wxUSE_MARKUP
+
+bool wxStaticText::SetFont( const wxFont &font )

 {
 {

-  Create( parent, id, label, pos, size, style, name );
+    const bool wasUnderlined = GetFont().GetUnderlined();
+
+    bool ret = wxControl::SetFont(font);
+
+    if ( font.GetUnderlined() != wasUnderlined )
+    {
+        // the underlines for mnemonics are incompatible with using attributes
+        // so turn them off when setting underlined font and restore them when
+        // unsetting it
+        gtk_label_set_use_underline(GTK_LABEL(m_widget), wasUnderlined);
+
+        if ( wasUnderlined )
+        {
+            // it's not underlined any more, remove the attributes we set
+            gtk_label_set_attributes(GTK_LABEL(m_widget), NULL);
+        }
+        else // the text is underlined now
+        {
+            PangoAttrList *attrs = pango_attr_list_new();
+            PangoAttribute *a = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
+            a->start_index = 0;
+            a->end_index = (guint)-1;
+            pango_attr_list_insert(attrs, a);
+            gtk_label_set_attributes(GTK_LABEL(m_widget), attrs);
+            pango_attr_list_unref(attrs);
+        }
+    }
+
+    // adjust the label size to the new label unless disabled
+    if (!HasFlag(wxST_NO_AUTORESIZE))
+    {
+        SetSize( GetBestSize() );
+    }
+    return ret;

 }
 
 }
 

-bool wxStaticText::Create( wxWindow *parent, wxWindowID id, const wxString &label, 
-      const wxPoint &pos, const wxSize &size, 
-      long style, const wxString &name )
+void wxStaticText::DoSetSize(int x, int y,
+                             int width, int height,
+                             int sizeFlags )

 {
 {

-  m_needParent = TRUE;
-  
-  wxSize newSize = size;
-  
-  PreCreation( parent, id, pos, size, style, name );
-  
-  wxControl::SetLabel(label);
-  m_widget = gtk_label_new( m_label );
-
-  GtkJustification justify;
-  if ( style & wxALIGN_CENTER )
-    justify = GTK_JUSTIFY_CENTER;
-  else if ( style & wxALIGN_RIGHT )
-    justify = GTK_JUSTIFY_RIGHT;
-  else // wxALIGN_LEFT is 0
-    justify = GTK_JUSTIFY_LEFT;
-  gtk_label_set_justify(GTK_LABEL(m_widget), justify);
-  
-   int y = 1;
-   if (newSize.x == -1) {
-     char *s = WXSTRINGCAST m_label;
-     char *nl = strchr(s, '\n');
-     if (nl) {
-       do {
-         *nl = 0;
-         int x = gdk_string_measure( m_widget->style->font, s );
-         if (x > newSize.x) {
-           newSize.x = x;
-         }
-         *nl++ = '\n';
-         if ((nl = strchr(s = nl, '\n'))) {
-           ++y;
-         } else {
-           int x = gdk_string_measure( m_widget->style->font, s );
-           if (x > newSize.x) {
-             newSize.x = x;
-           }
-         }
-       } while (nl);
-     } else {
-       newSize.x = gdk_string_measure( m_widget->style->font, label );
-     }
-   }
-   if (newSize.y == -1) {
-     if (y == 1) {
-       newSize.y = 26;
-     } else {
-       newSize.y
-         = y * (m_widget->style->font->ascent +m_widget->style->font->descent);
-     }
-   }
-  
-  SetSize( newSize.x, newSize.y );
-  
-  PostCreation();
-  
-  Show( TRUE );
-    
-  return TRUE;
+    wxStaticTextBase::DoSetSize(x, y, width, height, sizeFlags);
+
+    if (gtk_check_version(2,6,0))
+    {
+        // GTK+ < 2.6 does not support ellipsization - we need to run our
+        // generic code (actually it will be run only if IsEllipsized() == true)
+        UpdateLabel();
+    }

 }
 
 }
 

-wxString wxStaticText::GetLabel(void) const
+wxSize wxStaticText::DoGetBestSize() const

 {
 {

-  char *str = (char *) NULL;
-  gtk_label_get( GTK_LABEL(m_widget), &str );
-  wxString tmp( str );
-  return tmp;
+    // Do not return any arbitrary default value...
+    wxASSERT_MSG( m_widget, wxT("wxStaticText::DoGetBestSize called before creation") );
+
+    // GetBestSize is supposed to return unwrapped size but calling
+    // gtk_label_set_line_wrap() from here is a bad idea as it queues another
+    // size request by calling gtk_widget_queue_resize() and we end up in
+    // infinite loop sometimes (notably when the control is in a toolbar)
+    GTK_LABEL(m_widget)->wrap = FALSE;
+
+    wxSize size = wxStaticTextBase::DoGetBestSize();
+
+    GTK_LABEL(m_widget)->wrap = TRUE; // restore old value
+
+    // Adding 1 to width to workaround GTK sometimes wrapping the text needlessly
+    size.x++;
+    CacheBestSize(size);
+    return size;

 }
 
 }
 

-void wxStaticText::SetLabel( const wxString &label )
+bool wxStaticText::GTKWidgetNeedsMnemonic() const

 {
 {

-  wxControl::SetLabel(label);
+    return true;
+}
+
+void wxStaticText::GTKWidgetDoSetMnemonic(GtkWidget* w)
+{
+    gtk_label_set_mnemonic_widget(GTK_LABEL(m_widget), w);
+}
+
+
+// These functions should be used only when GTK+ < 2.6 by wxStaticTextBase::UpdateLabel()
+
+wxString wxStaticText::DoGetLabel() const
+{
+    GtkLabel *label = GTK_LABEL(m_widget);
+    return wxGTK_CONV_BACK( gtk_label_get_text( label ) );
+}

 
 

-  gtk_label_set( GTK_LABEL(m_widget), m_label );
+void wxStaticText::DoSetLabel(const wxString& str)
+{
+    GTKSetLabelForLabel(GTK_LABEL(m_widget), str);

 }
 }

+
+// static
+wxVisualAttributes
+wxStaticText::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
+{
+    return GetDefaultAttributesFromGTKWidget(gtk_label_new);
+}
+
+#endif // wxUSE_STATTEXT