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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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
11 #pragma implementation "stattext.h"
12 #endif
13
14 // For compilers that support precompilation, includes "wx.h".
15 #include "wx/wxprec.h"
16
17 #if wxUSE_STATTEXT
18
19 #include "wx/stattext.h"
20 #include "wx/gtk/private.h"
21
22 #include "gdk/gdk.h"
23 #include "gtk/gtk.h"
24
25 extern "C"
26 void wxgtk_window_size_request_callback(GtkWidget *widget,
27 GtkRequisition *requisition,
28 wxWindow *win);
29
30 //-----------------------------------------------------------------------------
31 // wxStaticText
32 //-----------------------------------------------------------------------------
33
34 IMPLEMENT_DYNAMIC_CLASS(wxStaticText,wxControl)
35
36 wxStaticText::wxStaticText()
37 {
38 }
39
40 wxStaticText::wxStaticText(wxWindow *parent,
41 wxWindowID id,
42 const wxString &label,
43 const wxPoint &pos,
44 const wxSize &size,
45 long style,
46 const wxString &name)
47 {
48 Create( parent, id, label, pos, size, style, name );
49 }
50
51 bool wxStaticText::Create(wxWindow *parent,
52 wxWindowID id,
53 const wxString &label,
54 const wxPoint &pos,
55 const wxSize &size,
56 long style,
57 const wxString &name )
58 {
59 m_needParent = TRUE;
60
61 if (!PreCreation( parent, pos, size ) ||
62 !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
63 {
64 wxFAIL_MSG( wxT("wxStaticText creation failed") );
65 return FALSE;
66 }
67
68 // notice that we call the base class version which will just remove the
69 // '&' characters from the string, but not set the label's text to it
70 // because the label is not yet created and because SetLabel() has a side
71 // effect of changing the control size which might not be desirable
72 wxControl::SetLabel(label);
73 m_widget = gtk_label_new( wxGTK_CONV( m_label ) );
74
75 GtkJustification justify;
76 if ( style & wxALIGN_CENTER )
77 justify = GTK_JUSTIFY_CENTER;
78 else if ( style & wxALIGN_RIGHT )
79 justify = GTK_JUSTIFY_RIGHT;
80 else // wxALIGN_LEFT is 0
81 justify = GTK_JUSTIFY_LEFT;
82 gtk_label_set_justify(GTK_LABEL(m_widget), justify);
83
84 // GTK_JUSTIFY_LEFT is 0, RIGHT 1 and CENTER 2
85 static const float labelAlignments[] = { 0.0, 1.0, 0.5 };
86 gtk_misc_set_alignment(GTK_MISC(m_widget), labelAlignments[justify], 0.0);
87
88 // do not move this call elsewhere
89 gtk_label_set_line_wrap( GTK_LABEL(m_widget), FALSE );
90
91 m_parent->DoAddChild( this );
92
93 PostCreation(size);
94
95 // the bug below only happens with GTK 2
96 #ifdef __WXGTK20__
97 if ( justify != GTK_JUSTIFY_LEFT )
98 {
99 // if we let GTK call wxgtk_window_size_request_callback the label
100 // always shrinks to its minimal size for some reason and so no
101 // alignment except the default left doesn't work (in fact it does,
102 // but you don't see it)
103 gtk_signal_disconnect_by_func
104 (
105 GTK_OBJECT(m_widget),
106 GTK_SIGNAL_FUNC(wxgtk_window_size_request_callback),
107 (gpointer) this
108 );
109 }
110 #endif // __WXGTK20__
111
112 return TRUE;
113 }
114
115 wxString wxStaticText::GetLabel() const
116 {
117 GtkLabel *label = GTK_LABEL(m_widget);
118
119 #ifdef __WXGTK20__
120 wxString str = wxGTK_CONV_BACK( gtk_label_get_text( label ) );
121 #else
122 wxString str = wxString( label->label );
123 #endif
124
125 return wxString(str);
126 }
127
128 void wxStaticText::SetLabel( const wxString &label )
129 {
130 wxControl::SetLabel(label);
131
132 #ifdef __WXGTK20__
133 // Build the colorized version of the label (markup only allowed
134 // under GTK2):
135 if (m_foregroundColour.Ok())
136 {
137 // If the color has been set, create a markup string to pass to
138 // the label setter
139 wxString colorlabel;
140 colorlabel.Printf(_T("<span foreground=\"#%02x%02x%02x\">%s</span>"),
141 m_foregroundColour.Red(), m_foregroundColour.Green(),
142 m_foregroundColour.Blue(),
143 wxEscapeStringForPangoMarkup(label).c_str());
144 gtk_label_set_markup( GTK_LABEL(m_widget), wxGTK_CONV( colorlabel ) );
145 }
146 else
147 #endif
148 gtk_label_set( GTK_LABEL(m_widget), wxGTK_CONV( m_label ) );
149
150 // adjust the label size to the new label unless disabled
151 if (!HasFlag(wxST_NO_AUTORESIZE))
152 {
153 InvalidateBestSize();
154 SetSize( GetBestSize() );
155 }
156 }
157
158 bool wxStaticText::SetFont( const wxFont &font )
159 {
160 bool ret = wxControl::SetFont(font);
161
162 // adjust the label size to the new label unless disabled
163 if (!HasFlag(wxST_NO_AUTORESIZE))
164 {
165 InvalidateBestSize();
166 SetSize( GetBestSize() );
167 }
168 return ret;
169 }
170
171 wxSize wxStaticText::DoGetBestSize() const
172 {
173 // Do not return any arbitrary default value...
174 wxASSERT_MSG( m_widget, wxT("wxStaticText::DoGetBestSize called before creation") );
175
176 // this invalidates the size request
177 gtk_label_set_line_wrap( GTK_LABEL(m_widget), TRUE );
178 gtk_label_set_line_wrap( GTK_LABEL(m_widget), FALSE );
179
180 GtkRequisition req;
181 req.width = 2;
182 req.height = 2;
183 (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(m_widget) )->size_request )
184 (m_widget, &req );
185
186 wxSize best(req.width, req.height);
187 CacheBestSize(best);
188 return best;
189 }
190
191 bool wxStaticText::SetForegroundColour(const wxColour& colour)
192 {
193 // First, we call the base class member
194 wxControl::SetForegroundColour(colour);
195 // Then, to force the color change, we set the label with the current label
196 SetLabel(GetLabel());
197 return true;
198 }
199
200 // static
201 wxVisualAttributes
202 wxStaticText::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
203 {
204 return GetDefaultAttributesFromGTKWidget(gtk_label_new);
205 }
206
207 #endif // wxUSE_STATTEXT