1 | /* Spin Buttons |
2 | * #Keywords: GtkEntry |
3 | * |
4 | * GtkSpinButton provides convenient ways to input data |
5 | * that can be seen as a value in a range. The examples |
6 | * here show that this does not necessarily mean numeric |
7 | * values, and it can include custom formatting. |
8 | */ |
9 | |
10 | #include <glib/gi18n.h> |
11 | #include <gtk/gtk.h> |
12 | #include <math.h> |
13 | #include <stdlib.h> |
14 | |
15 | G_MODULE_EXPORT int |
16 | spinbutton_hex_spin_input (GtkSpinButton *spin_button, |
17 | double *new_val) |
18 | { |
19 | const char *buf; |
20 | char *err; |
21 | double res; |
22 | |
23 | buf = gtk_editable_get_text (GTK_EDITABLE (spin_button)); |
24 | res = strtol (nptr: buf, endptr: &err, base: 16); |
25 | *new_val = res; |
26 | if (*err) |
27 | return GTK_INPUT_ERROR; |
28 | else |
29 | return TRUE; |
30 | } |
31 | |
32 | G_MODULE_EXPORT int |
33 | spinbutton_hex_spin_output (GtkSpinButton *spin_button) |
34 | { |
35 | GtkAdjustment *adjustment; |
36 | char *buf; |
37 | double val; |
38 | |
39 | adjustment = gtk_spin_button_get_adjustment (spin_button); |
40 | val = gtk_adjustment_get_value (adjustment); |
41 | if (fabs (x: val) < 1e-5) |
42 | buf = g_strdup (str: "0x00" ); |
43 | else |
44 | buf = g_strdup_printf (format: "0x%.2X" , (int) val); |
45 | if (strcmp (s1: buf, s2: gtk_editable_get_text (GTK_EDITABLE (spin_button)))) |
46 | gtk_editable_set_text (GTK_EDITABLE (spin_button), text: buf); |
47 | g_free (mem: buf); |
48 | |
49 | return TRUE; |
50 | } |
51 | |
52 | G_MODULE_EXPORT int |
53 | spinbutton_time_spin_input (GtkSpinButton *spin_button, |
54 | double *new_val) |
55 | { |
56 | const char *text; |
57 | char **str; |
58 | gboolean found = FALSE; |
59 | int hours; |
60 | int minutes; |
61 | char *endh; |
62 | char *endm; |
63 | |
64 | text = gtk_editable_get_text (GTK_EDITABLE (spin_button)); |
65 | str = g_strsplit (string: text, delimiter: ":" , max_tokens: 2); |
66 | |
67 | if (g_strv_length (str_array: str) == 2) |
68 | { |
69 | hours = strtol (nptr: str[0], endptr: &endh, base: 10); |
70 | minutes = strtol (nptr: str[1], endptr: &endm, base: 10); |
71 | if (!*endh && !*endm && |
72 | 0 <= hours && hours < 24 && |
73 | 0 <= minutes && minutes < 60) |
74 | { |
75 | *new_val = hours * 60 + minutes; |
76 | found = TRUE; |
77 | } |
78 | } |
79 | |
80 | g_strfreev (str_array: str); |
81 | |
82 | if (!found) |
83 | { |
84 | *new_val = 0.0; |
85 | return GTK_INPUT_ERROR; |
86 | } |
87 | |
88 | return TRUE; |
89 | } |
90 | |
91 | G_MODULE_EXPORT int |
92 | spinbutton_time_spin_output (GtkSpinButton *spin_button) |
93 | { |
94 | GtkAdjustment *adjustment; |
95 | char *buf; |
96 | double hours; |
97 | double minutes; |
98 | |
99 | adjustment = gtk_spin_button_get_adjustment (spin_button); |
100 | hours = gtk_adjustment_get_value (adjustment) / 60.0; |
101 | minutes = (hours - floor (x: hours)) * 60.0; |
102 | buf = g_strdup_printf (format: "%02.0f:%02.0f" , floor (x: hours), floor (x: minutes + 0.5)); |
103 | if (strcmp (s1: buf, s2: gtk_editable_get_text (GTK_EDITABLE (spin_button)))) |
104 | gtk_editable_set_text (GTK_EDITABLE (spin_button), text: buf); |
105 | g_free (mem: buf); |
106 | |
107 | return TRUE; |
108 | } |
109 | |
110 | static const char *month[12] = { |
111 | "January" , |
112 | "February" , |
113 | "March" , |
114 | "April" , |
115 | "May" , |
116 | "June" , |
117 | "July" , |
118 | "August" , |
119 | "September" , |
120 | "October" , |
121 | "November" , |
122 | "December" |
123 | }; |
124 | |
125 | G_MODULE_EXPORT int |
126 | spinbutton_month_spin_input (GtkSpinButton *spin_button, |
127 | double *new_val) |
128 | { |
129 | int i; |
130 | char *tmp1, *tmp2; |
131 | gboolean found = FALSE; |
132 | |
133 | for (i = 1; i <= 12; i++) |
134 | { |
135 | tmp1 = g_ascii_strup (str: month[i - 1], len: -1); |
136 | tmp2 = g_ascii_strup (str: gtk_editable_get_text (GTK_EDITABLE (spin_button)), len: -1); |
137 | if (strstr (haystack: tmp1, needle: tmp2) == tmp1) |
138 | found = TRUE; |
139 | g_free (mem: tmp1); |
140 | g_free (mem: tmp2); |
141 | if (found) |
142 | break; |
143 | } |
144 | if (!found) |
145 | { |
146 | *new_val = 0.0; |
147 | return GTK_INPUT_ERROR; |
148 | } |
149 | *new_val = (double) i; |
150 | |
151 | return TRUE; |
152 | } |
153 | |
154 | G_MODULE_EXPORT int |
155 | spinbutton_month_spin_output (GtkSpinButton *spin_button) |
156 | { |
157 | GtkAdjustment *adjustment; |
158 | double value; |
159 | int i; |
160 | |
161 | adjustment = gtk_spin_button_get_adjustment (spin_button); |
162 | value = gtk_adjustment_get_value (adjustment); |
163 | for (i = 1; i <= 12; i++) |
164 | if (fabs (x: value - (double)i) < 1e-5) |
165 | { |
166 | if (strcmp (s1: month[i-1], s2: gtk_editable_get_text (GTK_EDITABLE (spin_button)))) |
167 | gtk_editable_set_text (GTK_EDITABLE (spin_button), text: month[i-1]); |
168 | } |
169 | |
170 | return TRUE; |
171 | } |
172 | |
173 | static gboolean |
174 | value_to_label (GBinding *binding, |
175 | const GValue *from, |
176 | GValue *to, |
177 | gpointer user_data) |
178 | { |
179 | g_value_take_string (value: to, v_string: g_strdup_printf (format: "%g" , g_value_get_double (value: from))); |
180 | return TRUE; |
181 | } |
182 | |
183 | GtkWidget * |
184 | do_spinbutton (GtkWidget *do_widget) |
185 | { |
186 | static GtkWidget *window; |
187 | |
188 | if (!window) |
189 | { |
190 | GtkBuilder *builder; |
191 | GtkAdjustment *adj; |
192 | GtkWidget *label; |
193 | |
194 | builder = gtk_builder_new_from_resource (resource_path: "/spinbutton/spinbutton.ui" ); |
195 | window = GTK_WIDGET (gtk_builder_get_object (builder, "window" )); |
196 | gtk_window_set_display (GTK_WINDOW (window), |
197 | display: gtk_widget_get_display (widget: do_widget)); |
198 | gtk_window_set_title (GTK_WINDOW (window), title: "Spin Buttons" ); |
199 | gtk_window_set_resizable (GTK_WINDOW (window), FALSE); |
200 | g_object_add_weak_pointer (G_OBJECT (window), weak_pointer_location: (gpointer *)&window); |
201 | |
202 | adj = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "basic_adjustment" )); |
203 | label = GTK_WIDGET (gtk_builder_get_object (builder, "basic_label" )); |
204 | g_object_bind_property_full (source: adj, source_property: "value" , |
205 | target: label, target_property: "label" , |
206 | flags: G_BINDING_SYNC_CREATE, |
207 | transform_to: value_to_label, |
208 | NULL, |
209 | NULL, NULL); |
210 | adj = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "hex_adjustment" )); |
211 | label = GTK_WIDGET (gtk_builder_get_object (builder, "hex_label" )); |
212 | g_object_bind_property_full (source: adj, source_property: "value" , |
213 | target: label, target_property: "label" , |
214 | flags: G_BINDING_SYNC_CREATE, |
215 | transform_to: value_to_label, |
216 | NULL, |
217 | NULL, NULL); |
218 | adj = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "time_adjustment" )); |
219 | label = GTK_WIDGET (gtk_builder_get_object (builder, "time_label" )); |
220 | g_object_bind_property_full (source: adj, source_property: "value" , |
221 | target: label, target_property: "label" , |
222 | flags: G_BINDING_SYNC_CREATE, |
223 | transform_to: value_to_label, |
224 | NULL, |
225 | NULL, NULL); |
226 | adj = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "month_adjustment" )); |
227 | label = GTK_WIDGET (gtk_builder_get_object (builder, "month_label" )); |
228 | g_object_bind_property_full (source: adj, source_property: "value" , |
229 | target: label, target_property: "label" , |
230 | flags: G_BINDING_SYNC_CREATE, |
231 | transform_to: value_to_label, |
232 | NULL, |
233 | NULL, NULL); |
234 | |
235 | g_object_unref (object: builder); |
236 | } |
237 | |
238 | if (!gtk_widget_get_visible (widget: window)) |
239 | gtk_widget_show (widget: window); |
240 | else |
241 | gtk_window_destroy (GTK_WINDOW (window)); |
242 | |
243 | return window; |
244 | } |
245 | |