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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: button.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 #ifdef __GNUG__
11 #pragma implementation "button.h"
12 #endif
13
14 #include "wx/defs.h"
15
16 #if wxUSE_BUTTON
17
18 #include "wx/button.h"
19
20 #include "wx/gtk/private.h"
21
22 //-----------------------------------------------------------------------------
23 // classes
24 //-----------------------------------------------------------------------------
25
26 class wxButton;
27
28 //-----------------------------------------------------------------------------
29 // idle system
30 //-----------------------------------------------------------------------------
31
32 extern void wxapp_install_idle_handler();
33 extern bool g_isIdle;
34
35 //-----------------------------------------------------------------------------
36 // data
37 //-----------------------------------------------------------------------------
38
39 extern bool g_blockEventsOnDrag;
40
41 //-----------------------------------------------------------------------------
42 // "clicked"
43 //-----------------------------------------------------------------------------
44
45 static void gtk_button_clicked_callback( GtkWidget *WXUNUSED(widget), wxButton *button )
46 {
47 if (g_isIdle)
48 wxapp_install_idle_handler();
49
50 if (!button->m_hasVMT) return;
51 if (g_blockEventsOnDrag) return;
52
53 wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
54 event.SetEventObject(button);
55 button->GetEventHandler()->ProcessEvent(event);
56 }
57
58 //-----------------------------------------------------------------------------
59 // wxButton
60 //-----------------------------------------------------------------------------
61
62 IMPLEMENT_DYNAMIC_CLASS(wxButton,wxControl)
63
64 wxButton::wxButton()
65 {
66 }
67
68 wxButton::~wxButton()
69 {
70 }
71
72 bool wxButton::Create( wxWindow *parent, wxWindowID id, const wxString &label,
73 const wxPoint &pos, const wxSize &size,
74 long style, const wxValidator& validator, const wxString &name )
75 {
76 m_needParent = TRUE;
77 m_acceptsFocus = TRUE;
78
79 if (!PreCreation( parent, pos, size ) ||
80 !CreateBase( parent, id, pos, size, style, validator, name ))
81 {
82 wxFAIL_MSG( wxT("wxButton creation failed") );
83 return FALSE;
84 }
85
86 /*
87 wxString label2( label );
88 for (size_t i = 0; i < label2.Len(); i++)
89 {
90 if (label2.GetChar(i) == wxT('&'))
91 label2.SetChar(i,wxT('_'));
92 }
93
94 GtkWidget *accel_label = gtk_accel_label_new( label2.mb_str() );
95 gtk_widget_show( accel_label );
96
97 m_widget = gtk_button_new();
98 gtk_container_add( GTK_CONTAINER(m_widget), accel_label );
99
100 gtk_accel_label_set_accel_widget( GTK_ACCEL_LABEL(accel_label), m_widget );
101
102 guint accel_key = gtk_label_parse_uline (GTK_LABEL(accel_label), label2.mb_str() );
103 gtk_accel_label_refetch( GTK_ACCEL_LABEL(accel_label) );
104
105 wxControl::SetLabel( label );
106 */
107
108 m_widget = gtk_button_new_with_label("");
109
110 float x_alignment = 0.5;
111 if (HasFlag(wxBU_LEFT))
112 x_alignment = 0.0;
113 else if (HasFlag(wxBU_RIGHT))
114 x_alignment = 1.0;
115
116 float y_alignment = 0.5;
117 if (HasFlag(wxBU_TOP))
118 y_alignment = 0.0;
119 else if (HasFlag(wxBU_BOTTOM))
120 y_alignment = 1.0;
121
122 gtk_misc_set_alignment (GTK_MISC (BUTTON_CHILD (m_widget)),
123 x_alignment, y_alignment);
124
125 SetLabel( label );
126
127 if (style & wxNO_BORDER)
128 gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
129
130 gtk_signal_connect( GTK_OBJECT(m_widget), "clicked",
131 GTK_SIGNAL_FUNC(gtk_button_clicked_callback), (gpointer*)this );
132
133 m_parent->DoAddChild( this );
134
135 PostCreation();
136
137 SetFont( parent->GetFont() );
138
139 wxSize best_size( DoGetBestSize() );
140 wxSize new_size( size );
141 if (new_size.x == -1)
142 new_size.x = best_size.x;
143 if (new_size.y == -1)
144 new_size.y = best_size.y;
145 if ((new_size.x != size.x) || (new_size.y != size.y))
146 SetSize( new_size.x, new_size.y );
147
148 SetSize( new_size );
149
150 SetBackgroundColour( parent->GetBackgroundColour() );
151 SetForegroundColour( parent->GetForegroundColour() );
152
153 Show( TRUE );
154
155 return TRUE;
156 }
157
158 void wxButton::SetDefault()
159 {
160 GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
161 gtk_widget_grab_default( m_widget );
162
163 SetSize( m_x, m_y, m_width, m_height );
164 }
165
166 /* static */
167 wxSize wxButton::GetDefaultSize()
168 {
169 return wxSize(80,26);
170 }
171
172 void wxButton::SetLabel( const wxString &label )
173 {
174 wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
175
176 wxControl::SetLabel( label );
177
178 #ifdef __WXGTK20__
179 wxString label2 = PrepareLabelMnemonics( label );
180 gtk_label_set_text_with_mnemonic( GTK_LABEL( BUTTON_CHILD(m_widget) ), wxGTK_CONV( label2 ) );
181 #else
182 gtk_label_set( GTK_LABEL( BUTTON_CHILD(m_widget) ), wxGTK_CONV( GetLabel() ) );
183 #endif
184 }
185
186 bool wxButton::Enable( bool enable )
187 {
188 if ( !wxControl::Enable( enable ) )
189 return FALSE;
190
191 gtk_widget_set_sensitive( BUTTON_CHILD(m_widget), enable );
192
193 return TRUE;
194 }
195
196 bool wxButton::IsOwnGtkWindow( GdkWindow *window )
197 {
198 #ifdef __WXGTK20__
199 return GTK_BUTTON(m_widget)->event_window;
200 #else
201 return (window == m_widget->window);
202 #endif
203 }
204
205 void wxButton::ApplyWidgetStyle()
206 {
207 SetWidgetStyle();
208 gtk_widget_set_style( m_widget, m_widgetStyle );
209 gtk_widget_set_style( BUTTON_CHILD(m_widget), m_widgetStyle );
210 }
211
212 wxSize wxButton::DoGetBestSize() const
213 {
214 wxSize ret( wxControl::DoGetBestSize() );
215
216 if (!HasFlag(wxBU_EXACTFIT))
217 {
218 if (ret.x < 80) ret.x = 80;
219 }
220
221 return ret;
222 }
223
224 #endif // wxUSE_BUTTON
225