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widgets_helper.c
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1 /**********************************************************
2 *
3 * mp3splt-gtk -- utility based on mp3splt,
4 * for mp3/ogg splitting without decoding
5 *
6 * Copyright: (C) 2005-2012 Alexandru Munteanu
7 * Contact: io_fx@yahoo.fr
8 *
9 * http://mp3splt.sourceforge.net/
10 *
11 *********************************************************/
12
13 /**********************************************************
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation; either version 2
18 * of the License, or (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
28 * USA.
29 *
30 *********************************************************/
31
32 /*!********************************************************
33 * \file
34 *
35 * this file contains the code for the widgets helpers.
36 ********************************************************/
37
38 #include "widgets_helper.h"
39
40 static guint _wh_add_row_to_table();
41 static GtkWidget *_wh_put_in_new_hbox_with_margin(GtkWidget *widget, gint margin);
42 static void _wh_attach_to_table(GtkWidget *table, GtkWidget *widget,
43 guint start_column, guint end_column, guint row, int expand);
44 static void _wh_add_in_table_with_label(GtkWidget *table, const gchar *label_text,
45 GtkWidget *widget, int expand);
46
56 GtkWidget *wh_set_title_and_get_vbox(GtkWidget *widget, const gchar *title)
57 {
58 GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
59
60 GtkWidget *label = gtk_label_new(NULL);
61 gtk_label_set_markup(GTK_LABEL(label), title);
62
63 GtkWidget *label_hbox = gtk_hbox_new(FALSE, 0);
64 gtk_box_pack_start(GTK_BOX(label_hbox), label, FALSE, FALSE, 0);
65 gtk_box_pack_start(GTK_BOX(vbox), label_hbox, FALSE, FALSE, 5);
66
67 GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
68 gtk_box_pack_start(GTK_BOX(hbox), widget, TRUE, TRUE, 16);
69
70 gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
71
72 return vbox;
73 }
74
75 GtkWidget *wh_new_table()
76 {
77 GtkWidget *table = gtk_table_new(1, 2, FALSE);
78 gtk_table_set_col_spacing(GTK_TABLE(table), 0, 0);
79 gtk_table_set_col_spacing(GTK_TABLE(table), 1, 5);
80 return table;
81 }
82
83 void wh_add_in_table(GtkWidget *table, GtkWidget *widget)
84 {
85 guint last_row = _wh_add_row_to_table(table);
86
87 _wh_attach_to_table(table, widget, 1, 3, last_row, TRUE);
88 }
89
90 void wh_add_in_table_with_label_expand(GtkWidget *table, const gchar *label_text, GtkWidget *widget)
91 {
92 _wh_add_in_table_with_label(table, label_text, widget, TRUE);
93 }
94
95 void wh_add_in_table_with_label(GtkWidget *table, const gchar *label_text, GtkWidget *widget)
96 {
97 _wh_add_in_table_with_label(table, label_text, widget, FALSE);
98 }
99
100 GtkWidget *wh_put_in_new_hbox_with_margin_level(GtkWidget *widget, gint margin_level)
101 {
102 return _wh_put_in_new_hbox_with_margin(widget, 6 * margin_level);
103 }
104
105 GtkWidget *wh_new_entry(void *callback)
106 {
107 GtkWidget *entry = gtk_entry_new();
108 gtk_editable_set_editable(GTK_EDITABLE(entry), TRUE);
109
110 if (callback)
111 {
112 g_signal_connect(G_OBJECT(entry), "changed", G_CALLBACK(callback), NULL);
113 }
114
115 return entry;
116 }
117
118 GtkWidget *wh_new_button(const gchar *button_label)
119 {
120 return gtk_button_new_with_mnemonic(button_label);
121 }
122
123 void wh_get_widget_size(GtkWidget *widget, gint *width, gint *height)
124 {
125 #if GTK_MAJOR_VERSION <= 2
126 GtkAllocation allocation;
127 gtk_widget_get_allocation(widget, &allocation);
128
129 if (width != NULL)
130 {
131 *width = allocation.width;
132 }
133
134 if (height != NULL)
135 {
136 *height= allocation.height;
137 }
138 #else
139 if (width != NULL)
140 {
141 *width = gtk_widget_get_allocated_width(widget);
142 }
143
144 if (height != NULL)
145 {
146 *height = gtk_widget_get_allocated_height(widget);
147 }
148 #endif
149 }
150
151 static void _wh_folder_changed_event(GtkFileChooser *chooser, gpointer data)
152 {
153 ui_state *ui = (ui_state *) data;
154 ui_set_browser_directory(ui, gtk_file_chooser_get_current_folder(chooser));
155 }
156
157 void wh_set_browser_directory_handler(ui_state *ui, GtkWidget* dialog)
158 {
159 const gchar *browser_dir = ui_get_browser_directory(ui);
160 if (browser_dir)
161 {
162 gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog), browser_dir);
163 }
164
165 g_signal_connect(GTK_FILE_CHOOSER(dialog), "current-folder-changed",
166 G_CALLBACK(_wh_folder_changed_event), ui);
167 }
168
169 static guint _wh_add_row_to_table(GtkWidget *table)
170 {
171 guint rows;
172 guint columns;
173
174 g_object_get(G_OBJECT(table),
175 "n-rows", &rows,
176 "n-columns", &columns,
177 NULL);
178
179 guint new_rows = rows + 1;
180
181 gtk_table_resize(GTK_TABLE(table), new_rows, columns);
182 gtk_table_set_row_spacing(GTK_TABLE(table), new_rows - 1, 4);
183
184 return new_rows;
185 }
186
187 static GtkWidget *_wh_put_in_new_hbox_with_margin(GtkWidget *widget, gint margin)
188 {
189 GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
190 gtk_box_pack_start(GTK_BOX(hbox), widget, TRUE, TRUE, margin);
191 return hbox;
192 }
193
194 static void _wh_add_in_table_with_label(GtkWidget *table, const gchar *label_text,
195 GtkWidget *widget, int expand)
196 {
197 guint last_row = _wh_add_row_to_table(table);
198
199 GtkWidget *label = gtk_label_new(label_text);
200 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
201
202 _wh_attach_to_table(table, label, 1, 2, last_row, FALSE);
203 _wh_attach_to_table(table, widget, 2, 3, last_row, expand);
204 }
205
206 static void _wh_attach_to_table(GtkWidget *table, GtkWidget *widget,
207 guint start_column, guint end_column, guint row, int expand)
208 {
209 GtkWidget *my_widget = widget;
210 GtkWidget *hbox;
211
212 GtkAttachOptions xoptions = GTK_FILL;
213 if (expand)
214 {
215 xoptions |= GTK_EXPAND;
216 }
217 else
218 {
219 hbox = gtk_hbox_new(FALSE, 0);
220 gtk_box_pack_start(GTK_BOX(hbox), widget, FALSE, FALSE, 0);
221 my_widget = hbox;
222 }
223
224 gtk_table_attach(GTK_TABLE(table), my_widget,
225 start_column, end_column, row-1, row,
226 xoptions, GTK_FILL | GTK_EXPAND,
227 0, 0);
228 }
229