1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/spinbutt.cpp
3 // Purpose: wxSpinButton
4 // Author: Robert
5 // Modified by:
6 // Copyright: (c) 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_SPINBTN
14
15 #include "wx/spinbutt.h"
16
17 #include <gtk/gtk.h>
18
19 //-----------------------------------------------------------------------------
20 // data
21 //-----------------------------------------------------------------------------
22
23 extern bool g_blockEventsOnDrag;
24
25 //-----------------------------------------------------------------------------
26 // "value_changed"
27 //-----------------------------------------------------------------------------
28
29 extern "C" {
30 static void
gtk_value_changed(GtkSpinButton * spinbutton,wxSpinButton * win)31 gtk_value_changed(GtkSpinButton* spinbutton, wxSpinButton* win)
32 {
33 const double value = gtk_spin_button_get_value(spinbutton);
34 const int pos = int(value);
35 const int oldPos = win->m_pos;
36 if (g_blockEventsOnDrag || pos == oldPos)
37 {
38 win->m_pos = pos;
39 return;
40 }
41
42 wxSpinEvent event(pos > oldPos ? wxEVT_SCROLL_LINEUP : wxEVT_SCROLL_LINEDOWN, win->GetId());
43 event.SetPosition(pos);
44 event.SetEventObject(win);
45
46 if ((win->HandleWindowEvent( event )) &&
47 !event.IsAllowed() )
48 {
49 /* program has vetoed */
50 // this will cause another "value_changed" signal,
51 // but because pos == oldPos nothing will happen
52 gtk_spin_button_set_value(spinbutton, oldPos);
53 return;
54 }
55
56 win->m_pos = pos;
57
58 /* always send a thumbtrack event */
59 wxSpinEvent event2(wxEVT_SCROLL_THUMBTRACK, win->GetId());
60 event2.SetPosition(pos);
61 event2.SetEventObject(win);
62 win->HandleWindowEvent(event2);
63 }
64 }
65
66 //-----------------------------------------------------------------------------
67 // wxSpinButton
68 //-----------------------------------------------------------------------------
69
wxSpinButton()70 wxSpinButton::wxSpinButton()
71 {
72 m_pos = 0;
73 }
74
Create(wxWindow * parent,wxWindowID id,const wxPoint & pos,const wxSize & size,long style,const wxString & name)75 bool wxSpinButton::Create(wxWindow *parent,
76 wxWindowID id,
77 const wxPoint& pos,
78 const wxSize& size,
79 long style,
80 const wxString& name)
81 {
82 if (!PreCreation(parent, pos, size) ||
83 !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name))
84 {
85 wxFAIL_MSG( wxT("wxSpinButton creation failed") );
86 return false;
87 }
88
89 m_pos = 0;
90
91 m_widget = gtk_spin_button_new_with_range(0, 100, 1);
92 g_object_ref(m_widget);
93
94 gtk_entry_set_width_chars(GTK_ENTRY(m_widget), 0);
95 #if GTK_CHECK_VERSION(3,12,0)
96 if (gtk_check_version(3,12,0) == NULL)
97 gtk_entry_set_max_width_chars(GTK_ENTRY(m_widget), 0);
98 #endif
99 #ifdef __WXGTK3__
100 if (gtk_check_version(3,20,0) == NULL)
101 {
102 GTKApplyCssStyle(
103 "entry { min-width:0; padding-left:0; padding-right:0 }"
104 "button.down { border-style:none }");
105 }
106 #endif
107 gtk_spin_button_set_wrap( GTK_SPIN_BUTTON(m_widget),
108 (int)(m_windowStyle & wxSP_WRAP) );
109
110 g_signal_connect_after(
111 m_widget, "value_changed", G_CALLBACK(gtk_value_changed), this);
112
113 m_parent->DoAddChild( this );
114
115 PostCreation(size);
116
117 return true;
118 }
119
GetMin() const120 int wxSpinButton::GetMin() const
121 {
122 wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
123
124 double min;
125 gtk_spin_button_get_range((GtkSpinButton*)m_widget, &min, NULL);
126 return int(min);
127 }
128
GetMax() const129 int wxSpinButton::GetMax() const
130 {
131 wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
132
133 double max;
134 gtk_spin_button_get_range((GtkSpinButton*)m_widget, NULL, &max);
135 return int(max);
136 }
137
GetValue() const138 int wxSpinButton::GetValue() const
139 {
140 wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
141
142 return m_pos;
143 }
144
SetValue(int value)145 void wxSpinButton::SetValue( int value )
146 {
147 wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
148
149 GtkDisableEvents();
150 gtk_spin_button_set_value((GtkSpinButton*)m_widget, value);
151 m_pos = int(gtk_spin_button_get_value((GtkSpinButton*)m_widget));
152 GtkEnableEvents();
153 }
154
SetRange(int minVal,int maxVal)155 void wxSpinButton::SetRange(int minVal, int maxVal)
156 {
157 wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
158
159 GtkDisableEvents();
160 gtk_spin_button_set_range((GtkSpinButton*)m_widget, minVal, maxVal);
161 m_pos = int(gtk_spin_button_get_value((GtkSpinButton*)m_widget));
162 GtkEnableEvents();
163 }
164
Enable(bool enable)165 bool wxSpinButton::Enable( bool enable )
166 {
167 if (!base_type::Enable(enable))
168 return false;
169
170 // Work around lack of visual update when enabling
171 if (enable)
172 GTKFixSensitivity(false /* fix even if not under mouse */);
173
174 return true;
175 }
176
GtkDisableEvents() const177 void wxSpinButton::GtkDisableEvents() const
178 {
179 g_signal_handlers_block_by_func(m_widget,
180 (gpointer)gtk_value_changed, (void*) this);
181 }
182
GtkEnableEvents() const183 void wxSpinButton::GtkEnableEvents() const
184 {
185 g_signal_handlers_unblock_by_func(m_widget,
186 (gpointer)gtk_value_changed, (void*) this);
187 }
188
GTKGetWindow(wxArrayGdkWindows & windows) const189 GdkWindow *wxSpinButton::GTKGetWindow(wxArrayGdkWindows& windows) const
190 {
191 #ifdef __WXGTK3__
192 void wxGTKFindWindow(GtkWidget* widget, wxArrayGdkWindows& windows);
193 wxGTKFindWindow(m_widget, windows);
194 return NULL;
195 #else
196 wxUnusedVar(windows);
197 return GTK_SPIN_BUTTON(m_widget)->panel;
198 #endif
199 }
200
DoGetBestSize() const201 wxSize wxSpinButton::DoGetBestSize() const
202 {
203 wxSize best = base_type::DoGetBestSize();
204 #ifdef __WXGTK3__
205 GtkStyleContext* sc = gtk_widget_get_style_context(m_widget);
206 GtkBorder pad = { 0, 0, 0, 0 };
207 gtk_style_context_get_padding(sc, gtk_style_context_get_state(sc), &pad);
208 best.x -= pad.left + pad.right;
209 #else
210 gtk_widget_ensure_style(m_widget);
211 int w = PANGO_PIXELS(pango_font_description_get_size(m_widget->style->font_desc));
212 w &= ~1;
213 if (w < 6)
214 w = 6;
215 best.x = w + 2 * m_widget->style->xthickness;
216 #endif
217 CacheBestSize(best);
218 return best;
219 }
220
221 // static
222 wxVisualAttributes
GetClassDefaultAttributes(wxWindowVariant WXUNUSED (variant))223 wxSpinButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
224 {
225 return GetDefaultAttributesFromGTKWidget(gtk_spin_button_new_with_range(0, 100, 1));
226 }
227
228 #endif // wxUSE_SPINBTN
229