src/gtk/stattext.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        stattext.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_STATTEXT
  14
  15 #include "wx/stattext.h"
  16 #include "wx/gtk/private.h"
  17
  18 #include "gdk/gdk.h"
  19 #include "gtk/gtk.h"
  20
  21 extern "C"
  22 void wxgtk_window_size_request_callback(GtkWidget *widget,
  23                                         GtkRequisition *requisition,
  24                                         wxWindow *win);
  25
  26 //-----------------------------------------------------------------------------
  27 // wxStaticText
  28 //-----------------------------------------------------------------------------
  29
  30 IMPLEMENT_DYNAMIC_CLASS(wxStaticText,wxControl)
  31
  32 wxStaticText::wxStaticText()
  33 {
  34 }
  35
  36 wxStaticText::wxStaticText(wxWindow *parent,
  37                            wxWindowID id,
  38                            const wxString &label,
  39                            const wxPoint &pos,
  40                            const wxSize &size,
  41                            long style,
  42                            const wxString &name)
  43 {
  44   Create( parent, id, label, pos, size, style, name );
  45 }
  46
  47 bool wxStaticText::Create(wxWindow *parent,
  48                           wxWindowID id,
  49                           const wxString &label,
  50                           const wxPoint &pos,
  51                           const wxSize &size,
  52                           long style,
  53                           const wxString &name )
  54 {
  55     m_needParent = TRUE;
  56
  57     if (!PreCreation( parent, pos, size ) ||
  58         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
  59     {
  60         wxFAIL_MSG( wxT("wxStaticText creation failed") );
  61         return FALSE;
  62     }
  63
  64     // notice that we call the base class version which will
  65     // not set the label's text to it because the label is no
  66     // yet created and because SetLabel() has a side
  67     // effect of changing the control size which might not be desirable
  68     // wxContro::SetLabel no longer strips menu codes, so do it here.
  69     wxString label1(wxStripMenuCodes(label));
  70     wxControl::SetLabel(label);
  71     m_widget = gtk_label_new( wxGTK_CONV( label1 ) );
  72
  73     GtkJustification justify;
  74     if ( style & wxALIGN_CENTER )
  75       justify = GTK_JUSTIFY_CENTER;
  76     else if ( style & wxALIGN_RIGHT )
  77       justify = GTK_JUSTIFY_RIGHT;
  78     else // wxALIGN_LEFT is 0
  79       justify = GTK_JUSTIFY_LEFT;
  80     gtk_label_set_justify(GTK_LABEL(m_widget), justify);
  81
  82     // GTK_JUSTIFY_LEFT is 0, RIGHT 1 and CENTER 2
  83     static const float labelAlignments[] = { 0.0, 1.0, 0.5 };
  84     gtk_misc_set_alignment(GTK_MISC(m_widget), labelAlignments[justify], 0.0);
  85
  86         gtk_label_set_line_wrap( GTK_LABEL(m_widget), TRUE );
  87
  88     m_parent->DoAddChild( this );
  89
  90     PostCreation(size);
  91
  92     // the bug below only happens with GTK 2
  93     if ( justify != GTK_JUSTIFY_LEFT )
  94     {
  95         // if we let GTK call wxgtk_window_size_request_callback the label
  96         // always shrinks to its minimal size for some reason and so no
  97         // alignment except the default left doesn't work (in fact it does,
  98         // but you don't see it)
  99         g_signal_handlers_disconnect_by_func (m_widget,
 100                                               (gpointer) wxgtk_window_size_request_callback,
 101                                               this);
 102     }
 103
 104     return TRUE;
 105 }
 106
 107 wxString wxStaticText::GetLabel() const
 108 {
 109     GtkLabel *label = GTK_LABEL(m_widget);
 110     wxString str = wxGTK_CONV_BACK( gtk_label_get_text( label ) );
 111
 112     return wxString(str);
 113 }
 114
 115 void wxStaticText::SetLabel( const wxString &label )
 116 {
 117     wxControl::SetLabel(label);
 118     wxString label1(wxStripMenuCodes(label));
 119
 120     // Build the colorized version of the label (markup only allowed
 121     // under GTK2):
 122     // FIXME: Does this handle background correct? I recall bug reports - MR
 123     if (m_foregroundColour.Ok())
 124     {
 125         // If the color has been set, create a markup string to pass to
 126         // the label setter
 127         wxString colorlabel;
 128         colorlabel.Printf(_T("<span foreground=\"#%02x%02x%02x\">%s</span>"),
 129                           m_foregroundColour.Red(), m_foregroundColour.Green(),
 130                           m_foregroundColour.Blue(),
 131                           wxEscapeStringForPangoMarkup(label1).c_str());
 132         gtk_label_set_markup( GTK_LABEL(m_widget), wxGTK_CONV( colorlabel ) );
 133     }
 134     else
 135         gtk_label_set_text( GTK_LABEL(m_widget), wxGTK_CONV( label1 ) );
 136
 137     // adjust the label size to the new label unless disabled
 138     if (!HasFlag(wxST_NO_AUTORESIZE))
 139     {
 140         InvalidateBestSize();
 141         SetSize( GetBestSize() );
 142     }
 143 }
 144
 145 bool wxStaticText::SetFont( const wxFont &font )
 146 {
 147     bool ret = wxControl::SetFont(font);
 148
 149     // adjust the label size to the new label unless disabled
 150     if (!HasFlag(wxST_NO_AUTORESIZE))
 151     {
 152         InvalidateBestSize();
 153         SetSize( GetBestSize() );
 154     }
 155     return ret;
 156 }
 157
 158 void wxStaticText::DoSetSize(int x, int y,
 159                            int width, int height,
 160                            int sizeFlags )
 161 {
 162     wxControl::DoSetSize( x, y, width, height, sizeFlags );
 163 }
 164
 165 wxSize wxStaticText::DoGetBestSize() const
 166 {
 167     // Do not return any arbitrary default value...
 168     wxASSERT_MSG( m_widget, wxT("wxStaticText::DoGetBestSize called before creation") );
 169
 170     // GetBestSize is supposed to return unwrapped size
 171     gtk_label_set_line_wrap( GTK_LABEL(m_widget), FALSE );
 172
 173     GtkRequisition req;
 174     req.width = -1;
 175     req.height = -1;
 176     (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(m_widget) )->size_request )
 177         (m_widget, &req );
 178
 179     gtk_label_set_line_wrap( GTK_LABEL(m_widget), TRUE );
 180
 181     return wxSize (req.width, req.height);
 182 }
 183
 184 bool wxStaticText::SetForegroundColour(const wxColour& colour)
 185 {
 186     // First, we call the base class member
 187     wxControl::SetForegroundColour(colour);
 188     // Then, to force the color change, we set the label with the current label
 189     SetLabel(GetLabel());
 190     return true;
 191 }
 192
 193 // static
 194 wxVisualAttributes
 195 wxStaticText::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 196 {
 197     return GetDefaultAttributesFromGTKWidget(gtk_label_new);
 198 }
 199
 200 #endif // wxUSE_STATTEXT