1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/bmpbuttn.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id: bmpbuttn.cpp 52007 2008-02-22 19:57:54Z VS $
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_BMPBUTTON
14
15 #include "wx/bmpbuttn.h"
16
17 #include "wx/gtk/private.h"
18
19 //-----------------------------------------------------------------------------
20 // classes
21 //-----------------------------------------------------------------------------
22
23 class wxBitmapButton;
24
25 //-----------------------------------------------------------------------------
26 // data
27 //-----------------------------------------------------------------------------
28
29 extern bool g_blockEventsOnDrag;
30
31 //-----------------------------------------------------------------------------
32 // "clicked"
33 //-----------------------------------------------------------------------------
34
35 extern "C" {
gtk_bmpbutton_clicked_callback(GtkWidget * WXUNUSED (widget),wxBitmapButton * button)36 static void gtk_bmpbutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
37 {
38 if (g_isIdle)
39 wxapp_install_idle_handler();
40
41 if (!button->m_hasVMT) return;
42 if (g_blockEventsOnDrag) return;
43
44 wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, button->GetId());
45 event.SetEventObject(button);
46 button->GetEventHandler()->ProcessEvent(event);
47 }
48 }
49
50 //-----------------------------------------------------------------------------
51 // "enter"
52 //-----------------------------------------------------------------------------
53
54 extern "C" {
gtk_bmpbutton_enter_callback(GtkWidget * WXUNUSED (widget),wxBitmapButton * button)55 static void gtk_bmpbutton_enter_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
56 {
57 if (!button->m_hasVMT) return;
58 if (g_blockEventsOnDrag) return;
59
60 button->HasFocus();
61 }
62 }
63
64 //-----------------------------------------------------------------------------
65 // "leave"
66 //-----------------------------------------------------------------------------
67
68 extern "C" {
gtk_bmpbutton_leave_callback(GtkWidget * WXUNUSED (widget),wxBitmapButton * button)69 static void gtk_bmpbutton_leave_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
70 {
71 if (!button->m_hasVMT) return;
72 if (g_blockEventsOnDrag) return;
73
74 button->NotFocus();
75 }
76 }
77
78 //-----------------------------------------------------------------------------
79 // "pressed"
80 //-----------------------------------------------------------------------------
81
82 extern "C" {
gtk_bmpbutton_press_callback(GtkWidget * WXUNUSED (widget),wxBitmapButton * button)83 static void gtk_bmpbutton_press_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
84 {
85 if (!button->m_hasVMT) return;
86 if (g_blockEventsOnDrag) return;
87
88 button->StartSelect();
89 }
90 }
91
92 //-----------------------------------------------------------------------------
93 // "released"
94 //-----------------------------------------------------------------------------
95
96 extern "C" {
gtk_bmpbutton_release_callback(GtkWidget * WXUNUSED (widget),wxBitmapButton * button)97 static void gtk_bmpbutton_release_callback( GtkWidget *WXUNUSED(widget), wxBitmapButton *button )
98 {
99 if (!button->m_hasVMT) return;
100 if (g_blockEventsOnDrag) return;
101
102 button->EndSelect();
103 }
104 }
105
106 //-----------------------------------------------------------------------------
107 // wxBitmapButton
108 //-----------------------------------------------------------------------------
109
IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton,wxButton)110 IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton,wxButton)
111
112 void wxBitmapButton::Init()
113 {
114 m_hasFocus =
115 m_isSelected = false;
116 }
117
Create(wxWindow * parent,wxWindowID id,const wxBitmap & bitmap,const wxPoint & pos,const wxSize & size,long style,const wxValidator & validator,const wxString & name)118 bool wxBitmapButton::Create( wxWindow *parent,
119 wxWindowID id,
120 const wxBitmap& bitmap,
121 const wxPoint& pos,
122 const wxSize& size,
123 long style,
124 const wxValidator& validator,
125 const wxString &name )
126 {
127 m_needParent = true;
128 m_acceptsFocus = true;
129
130 if (!PreCreation( parent, pos, size ) ||
131 !CreateBase( parent, id, pos, size, style, validator, name ))
132 {
133 wxFAIL_MSG( wxT("wxBitmapButton creation failed") );
134 return false;
135 }
136
137 m_bmpNormal = bitmap;
138
139 m_widget = gtk_button_new();
140
141 if (style & wxNO_BORDER)
142 gtk_button_set_relief( GTK_BUTTON(m_widget), GTK_RELIEF_NONE );
143
144 if (m_bmpNormal.Ok())
145 {
146 OnSetBitmap();
147 }
148
149 g_signal_connect_after (m_widget, "clicked",
150 G_CALLBACK (gtk_bmpbutton_clicked_callback),
151 this);
152
153 g_signal_connect (m_widget, "enter",
154 G_CALLBACK (gtk_bmpbutton_enter_callback), this);
155 g_signal_connect (m_widget, "leave",
156 G_CALLBACK (gtk_bmpbutton_leave_callback), this);
157 g_signal_connect (m_widget, "pressed",
158 G_CALLBACK (gtk_bmpbutton_press_callback), this);
159 g_signal_connect (m_widget, "released",
160 G_CALLBACK (gtk_bmpbutton_release_callback), this);
161
162 m_parent->DoAddChild( this );
163
164 PostCreation(size);
165
166 Connect(wxEVT_SET_FOCUS,
167 wxFocusEventHandler(wxBitmapButton::OnFocusChange),
168 NULL, this);
169 Connect(wxEVT_KILL_FOCUS,
170 wxFocusEventHandler(wxBitmapButton::OnFocusChange),
171 NULL, this);
172
173 return true;
174 }
175
SetDefault()176 void wxBitmapButton::SetDefault()
177 {
178 GTK_WIDGET_SET_FLAGS( m_widget, GTK_CAN_DEFAULT );
179 gtk_widget_grab_default( m_widget );
180
181 SetSize( m_x, m_y, m_width, m_height );
182 }
183
SetLabel(const wxString & label)184 void wxBitmapButton::SetLabel( const wxString &label )
185 {
186 wxCHECK_RET( m_widget != NULL, wxT("invalid button") );
187
188 wxControl::SetLabel( label );
189 }
190
DoApplyWidgetStyle(GtkRcStyle * style)191 void wxBitmapButton::DoApplyWidgetStyle(GtkRcStyle *style)
192 {
193 if (!GTK_BIN(m_widget)->child)
194 return;
195
196 wxButton::DoApplyWidgetStyle(style);
197 }
198
OnSetBitmap()199 void wxBitmapButton::OnSetBitmap()
200 {
201 wxCHECK_RET( m_widget != NULL, wxT("invalid bitmap button") );
202
203 InvalidateBestSize();
204
205 wxBitmap the_one;
206 if (!m_isEnabled)
207 the_one = m_bmpDisabled;
208 else if (m_isSelected)
209 the_one = m_bmpSelected;
210 else if (m_hasFocus)
211 {
212 // NB: this is misnomer, m_hasFocus doesn't mean "has focus", but
213 // "mouse is over the window"
214 the_one = m_bmpHover;
215 }
216 else if (FindFocus() == this)
217 the_one = m_bmpFocus;
218 else
219 the_one = m_bmpNormal;
220
221 if (!the_one.Ok()) the_one = m_bmpNormal;
222 if (!the_one.Ok()) return;
223
224 GtkWidget *child = GTK_BIN(m_widget)->child;
225 if (child == NULL)
226 {
227 // initial bitmap
228 GtkWidget *pixmap =
229 gtk_image_new_from_pixbuf(the_one.GetPixbuf());
230
231 gtk_widget_show(pixmap);
232 gtk_container_add(GTK_CONTAINER(m_widget), pixmap);
233 }
234 else
235 { // subsequent bitmaps
236 GtkImage *pixmap = GTK_IMAGE(child);
237 gtk_image_set_from_pixbuf(pixmap, the_one.GetPixbuf());
238 }
239 }
240
DoGetBestSize() const241 wxSize wxBitmapButton::DoGetBestSize() const
242 {
243 return wxControl::DoGetBestSize();
244 }
245
Enable(bool enable)246 bool wxBitmapButton::Enable( bool enable )
247 {
248 if ( !wxWindow::Enable(enable) )
249 return false;
250
251 OnSetBitmap();
252
253 return true;
254 }
255
HasFocus()256 void wxBitmapButton::HasFocus()
257 {
258 m_hasFocus = true;
259 OnSetBitmap();
260 }
261
NotFocus()262 void wxBitmapButton::NotFocus()
263 {
264 m_hasFocus = false;
265 OnSetBitmap();
266 }
267
StartSelect()268 void wxBitmapButton::StartSelect()
269 {
270 m_isSelected = true;
271 OnSetBitmap();
272 }
273
EndSelect()274 void wxBitmapButton::EndSelect()
275 {
276 m_isSelected = false;
277 OnSetBitmap();
278 }
279
OnFocusChange(wxFocusEvent & event)280 void wxBitmapButton::OnFocusChange(wxFocusEvent& event)
281 {
282 event.Skip();
283 OnSetBitmap();
284 }
285
286 #endif // wxUSE_BMPBUTTON
287