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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/gtk/tglbtn.cpp | |
3 | // Purpose: Definition of the wxToggleButton class, which implements a | |
4 | // toggle button under wxGTK. | |
5 | // Author: John Norris, minor changes by Axel Schlueter | |
6 | // Modified by: | |
7 | // Created: 08.02.01 | |
8 | // RCS-ID: $Id$ | |
9 | // Copyright: (c) 2000 Johnny C. Norris II | |
10 | // Licence: wxWindows licence | |
11 | ///////////////////////////////////////////////////////////////////////////// | |
12 | ||
13 | // For compilers that support precompilation, includes "wx.h". | |
14 | #include "wx/wxprec.h" | |
15 | ||
16 | #if wxUSE_TOGGLEBTN | |
17 | ||
18 | #include "wx/tglbtn.h" | |
19 | ||
20 | #ifndef WX_PRECOMP | |
21 | #include "wx/button.h" | |
22 | #endif | |
23 | ||
24 | #include "wx/gtk/private.h" | |
25 | ||
26 | extern bool g_blockEventsOnDrag; | |
27 | ||
28 | extern "C" { | |
29 | static void gtk_togglebutton_clicked_callback(GtkWidget *WXUNUSED(widget), wxToggleButton *cb) | |
30 | { | |
31 | if (!cb->m_hasVMT || g_blockEventsOnDrag) | |
32 | return; | |
33 | ||
34 | // Generate a wx event. | |
35 | wxCommandEvent event(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, cb->GetId()); | |
36 | event.SetInt(cb->GetValue()); | |
37 | event.SetEventObject(cb); | |
38 | cb->HandleWindowEvent(event); | |
39 | } | |
40 | } | |
41 | ||
42 | wxDEFINE_EVENT( wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEvent ); | |
43 | ||
44 | // ------------------------------------------------------------------------ | |
45 | // wxBitmapToggleButton | |
46 | // ------------------------------------------------------------------------ | |
47 | ||
48 | IMPLEMENT_DYNAMIC_CLASS(wxBitmapToggleButton, wxToggleButton) | |
49 | ||
50 | bool wxBitmapToggleButton::Create(wxWindow *parent, wxWindowID id, | |
51 | const wxBitmap &bitmap, const wxPoint &pos, | |
52 | const wxSize &size, long style, | |
53 | const wxValidator& validator, | |
54 | const wxString &name) | |
55 | { | |
56 | if ( !wxToggleButton::Create(parent, id, wxEmptyString, pos, size, style | wxBU_NOTEXT | wxBU_EXACTFIT, | |
57 | validator, name) ) | |
58 | return false; | |
59 | ||
60 | if ( bitmap.IsOk() ) | |
61 | { | |
62 | SetBitmapLabel(bitmap); | |
63 | ||
64 | // we need to adjust the size after setting the bitmap as it may be too | |
65 | // big for the default button size | |
66 | SetInitialSize(size); | |
67 | } | |
68 | ||
69 | return true; | |
70 | } | |
71 | ||
72 | ||
73 | // ------------------------------------------------------------------------ | |
74 | // wxToggleButton | |
75 | // ------------------------------------------------------------------------ | |
76 | ||
77 | IMPLEMENT_DYNAMIC_CLASS(wxToggleButton, wxControl) | |
78 | ||
79 | bool wxToggleButton::Create(wxWindow *parent, wxWindowID id, | |
80 | const wxString &label, const wxPoint &pos, | |
81 | const wxSize &size, long style, | |
82 | const wxValidator& validator, | |
83 | const wxString &name) | |
84 | { | |
85 | if (!PreCreation(parent, pos, size) || | |
86 | !CreateBase(parent, id, pos, size, style, validator, name )) | |
87 | { | |
88 | wxFAIL_MSG(wxT("wxToggleButton creation failed")); | |
89 | return false; | |
90 | } | |
91 | ||
92 | // create either a standard toggle button with text label (which may still contain | |
93 | // an image under GTK+ 2.6+) or a bitmap-only toggle button if we don't have any | |
94 | // label | |
95 | const bool | |
96 | useLabel = !(style & wxBU_NOTEXT) && !label.empty(); | |
97 | if ( useLabel ) | |
98 | { | |
99 | m_widget = gtk_toggle_button_new_with_mnemonic(""); | |
100 | } | |
101 | else // no label, suppose we will have a bitmap | |
102 | { | |
103 | m_widget = gtk_toggle_button_new(); | |
104 | ||
105 | GtkWidget *image = gtk_image_new(); | |
106 | gtk_widget_show(image); | |
107 | gtk_container_add(GTK_CONTAINER(m_widget), image); | |
108 | } | |
109 | ||
110 | g_object_ref(m_widget); | |
111 | ||
112 | if ( useLabel ) | |
113 | SetLabel(label); | |
114 | ||
115 | g_signal_connect (m_widget, "clicked", | |
116 | G_CALLBACK (gtk_togglebutton_clicked_callback), | |
117 | this); | |
118 | ||
119 | m_parent->DoAddChild(this); | |
120 | ||
121 | PostCreation(size); | |
122 | ||
123 | return true; | |
124 | } | |
125 | ||
126 | void wxToggleButton::GTKDisableEvents() | |
127 | { | |
128 | g_signal_handlers_block_by_func(m_widget, | |
129 | (gpointer) gtk_togglebutton_clicked_callback, this); | |
130 | } | |
131 | ||
132 | void wxToggleButton::GTKEnableEvents() | |
133 | { | |
134 | g_signal_handlers_unblock_by_func(m_widget, | |
135 | (gpointer) gtk_togglebutton_clicked_callback, this); | |
136 | } | |
137 | ||
138 | // void SetValue(bool state) | |
139 | // Set the value of the toggle button. | |
140 | void wxToggleButton::SetValue(bool state) | |
141 | { | |
142 | wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button")); | |
143 | ||
144 | if (state == GetValue()) | |
145 | return; | |
146 | ||
147 | GTKDisableEvents(); | |
148 | ||
149 | gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(m_widget), state); | |
150 | ||
151 | GTKEnableEvents(); | |
152 | } | |
153 | ||
154 | // bool GetValue() const | |
155 | // Get the value of the toggle button. | |
156 | bool wxToggleButton::GetValue() const | |
157 | { | |
158 | wxCHECK_MSG(m_widget != NULL, false, wxT("invalid toggle button")); | |
159 | ||
160 | return gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(m_widget)) != 0; | |
161 | } | |
162 | ||
163 | void wxToggleButton::SetLabel(const wxString& label) | |
164 | { | |
165 | wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button")); | |
166 | ||
167 | wxAnyButton::SetLabel(label); | |
168 | ||
169 | if ( HasFlag(wxBU_NOTEXT) ) | |
170 | { | |
171 | // Don't try to update the label for a button not showing it, this is | |
172 | // unnecessary and can also actually replace the image we show with the | |
173 | // label entirely breaking the button code, see #13693. | |
174 | return; | |
175 | } | |
176 | ||
177 | const wxString labelGTK = GTKConvertMnemonics(label); | |
178 | ||
179 | gtk_button_set_label(GTK_BUTTON(m_widget), wxGTK_CONV(labelGTK)); | |
180 | ||
181 | GTKApplyWidgetStyle( false ); | |
182 | } | |
183 | ||
184 | #if wxUSE_MARKUP | |
185 | bool wxToggleButton::DoSetLabelMarkup(const wxString& markup) | |
186 | { | |
187 | wxCHECK_MSG( m_widget != NULL, false, "invalid toggle button" ); | |
188 | ||
189 | const wxString stripped = RemoveMarkup(markup); | |
190 | if ( stripped.empty() && !markup.empty() ) | |
191 | return false; | |
192 | ||
193 | wxControl::SetLabel(stripped); | |
194 | ||
195 | if ( !HasFlag(wxBU_NOTEXT) ) | |
196 | { | |
197 | GtkLabel * const label = GTKGetLabel(); | |
198 | wxCHECK_MSG( label, false, "no label in this toggle button?" ); | |
199 | ||
200 | GTKSetLabelWithMarkupForLabel(label, markup); | |
201 | } | |
202 | ||
203 | return true; | |
204 | } | |
205 | #endif // wxUSE_MARKUP | |
206 | ||
207 | GtkLabel *wxToggleButton::GTKGetLabel() const | |
208 | { | |
209 | GtkWidget* child = gtk_bin_get_child(GTK_BIN(m_widget)); | |
210 | return GTK_LABEL(child); | |
211 | } | |
212 | ||
213 | void wxToggleButton::DoApplyWidgetStyle(GtkRcStyle *style) | |
214 | { | |
215 | gtk_widget_modify_style(m_widget, style); | |
216 | gtk_widget_modify_style(gtk_bin_get_child(GTK_BIN(m_widget)), style); | |
217 | } | |
218 | ||
219 | // Get the "best" size for this control. | |
220 | wxSize wxToggleButton::DoGetBestSize() const | |
221 | { | |
222 | wxSize ret(wxAnyButton::DoGetBestSize()); | |
223 | ||
224 | if (!HasFlag(wxBU_EXACTFIT)) | |
225 | { | |
226 | if (ret.x < 80) ret.x = 80; | |
227 | } | |
228 | ||
229 | CacheBestSize(ret); | |
230 | return ret; | |
231 | } | |
232 | ||
233 | // static | |
234 | wxVisualAttributes | |
235 | wxToggleButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) | |
236 | { | |
237 | return GetDefaultAttributesFromGTKWidget(gtk_toggle_button_new); | |
238 | } | |
239 | ||
240 | #endif // wxUSE_TOGGLEBTN |