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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/spinbutt.cpp
3 // Purpose: wxSpinButton
4 // Author: Robert
5 // Modified by:
6 // RCS-ID: $Id$
7 // Copyright: (c) Robert Roebling
8 // Licence: wxWindows licence
9 /////////////////////////////////////////////////////////////////////////////
10
11 // For compilers that support precompilation, includes "wx.h".
12 #include "wx/wxprec.h"
13
14 #if wxUSE_SPINBTN
15
16 #include "wx/spinbutt.h"
17
18 #ifndef WX_PRECOMP
19 #include "wx/utils.h"
20 #endif
21
22 #include "wx/gtk/private.h"
23
24 //-----------------------------------------------------------------------------
25 // data
26 //-----------------------------------------------------------------------------
27
28 extern bool g_blockEventsOnDrag;
29
30 //-----------------------------------------------------------------------------
31 // "value_changed"
32 //-----------------------------------------------------------------------------
33
34 extern "C" {
35 static void
36 gtk_value_changed(GtkSpinButton* spinbutton, wxSpinButton* win)
37 {
38 if (g_isIdle) wxapp_install_idle_handler();
39
40 const double value = gtk_spin_button_get_value(spinbutton);
41 const int pos = int(value);
42 const int oldPos = win->m_pos;
43 if (!win->m_hasVMT || g_blockEventsOnDrag || win->m_blockScrollEvent || pos == oldPos)
44 {
45 win->m_pos = pos;
46 return;
47 }
48
49 wxSpinEvent event(pos > oldPos ? wxEVT_SCROLL_LINEUP : wxEVT_SCROLL_LINEDOWN, win->GetId());
50 event.SetPosition(pos);
51 event.SetEventObject(win);
52
53 if ((win->GetEventHandler()->ProcessEvent( event )) &&
54 !event.IsAllowed() )
55 {
56 /* program has vetoed */
57 win->BlockScrollEvent();
58 gtk_spin_button_set_value(spinbutton, oldPos);
59 win->UnblockScrollEvent();
60 return;
61 }
62
63 win->m_pos = pos;
64
65 /* always send a thumbtrack event */
66 wxSpinEvent event2(wxEVT_SCROLL_THUMBTRACK, win->GetId());
67 event2.SetPosition(pos);
68 event2.SetEventObject(win);
69 win->GetEventHandler()->ProcessEvent(event2);
70 }
71 }
72
73 //-----------------------------------------------------------------------------
74 // wxSpinButton
75 //-----------------------------------------------------------------------------
76
77 IMPLEMENT_DYNAMIC_CLASS(wxSpinButton,wxControl)
78 IMPLEMENT_DYNAMIC_CLASS(wxSpinEvent, wxNotifyEvent)
79
80 BEGIN_EVENT_TABLE(wxSpinButton, wxControl)
81 EVT_SIZE(wxSpinButton::OnSize)
82 END_EVENT_TABLE()
83
84 wxSpinButton::wxSpinButton()
85 {
86 m_pos = 0;
87 }
88
89 bool wxSpinButton::Create(wxWindow *parent,
90 wxWindowID id,
91 const wxPoint& pos,
92 const wxSize& size,
93 long style,
94 const wxString& name)
95 {
96 m_needParent = true;
97
98 wxSize new_size = size,
99 sizeBest = DoGetBestSize();
100 new_size.x = sizeBest.x; // override width always
101 if (new_size.y == -1)
102 new_size.y = sizeBest.y;
103
104 if (!PreCreation( parent, pos, new_size ) ||
105 !CreateBase( parent, id, pos, new_size, style, wxDefaultValidator, name ))
106 {
107 wxFAIL_MSG( wxT("wxSpinButton creation failed") );
108 return false;
109 }
110
111 m_pos = 0;
112
113 m_widget = gtk_spin_button_new_with_range(0, 100, 1);
114
115 gtk_spin_button_set_wrap( GTK_SPIN_BUTTON(m_widget),
116 (int)(m_windowStyle & wxSP_WRAP) );
117
118 g_signal_connect_after(
119 m_widget, "value_changed", G_CALLBACK(gtk_value_changed), this);
120
121 m_parent->DoAddChild( this );
122
123 PostCreation(new_size);
124
125 return true;
126 }
127
128 int wxSpinButton::GetMin() const
129 {
130 wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
131
132 double min;
133 gtk_spin_button_get_range((GtkSpinButton*)m_widget, &min, NULL);
134 return int(min);
135 }
136
137 int wxSpinButton::GetMax() const
138 {
139 wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
140
141 double max;
142 gtk_spin_button_get_range((GtkSpinButton*)m_widget, NULL, &max);
143 return int(max);
144 }
145
146 int wxSpinButton::GetValue() const
147 {
148 wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
149
150 return m_pos;
151 }
152
153 void wxSpinButton::SetValue( int value )
154 {
155 wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
156
157 BlockScrollEvent();
158 gtk_spin_button_set_value((GtkSpinButton*)m_widget, value);
159 UnblockScrollEvent();
160 }
161
162 void wxSpinButton::SetRange(int minVal, int maxVal)
163 {
164 wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
165
166 BlockScrollEvent();
167 gtk_spin_button_set_range((GtkSpinButton*)m_widget, minVal, maxVal);
168 UnblockScrollEvent();
169 }
170
171 void wxSpinButton::OnSize( wxSizeEvent &WXUNUSED(event) )
172 {
173 wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
174
175 m_width = DoGetBestSize().x;
176 gtk_widget_set_size_request( m_widget, m_width, m_height );
177 }
178
179 GdkWindow *wxSpinButton::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
180 {
181 return GTK_SPIN_BUTTON(m_widget)->panel;
182 }
183
184 wxSize wxSpinButton::DoGetBestSize() const
185 {
186 wxSize best(15, 26); // FIXME
187 CacheBestSize(best);
188 return best;
189 }
190
191 // static
192 wxVisualAttributes
193 wxSpinButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
194 {
195 // TODO: overload to accept functions like gtk_spin_button_new?
196 // Until then use a similar type
197 return GetDefaultAttributesFromGTKWidget(gtk_button_new);
198 }
199
200 #endif