1#include <gtk/gtk.h>
2
3#include "exampleapp.h"
4#include "exampleappwin.h"
5
6struct _ExampleAppWindow
7{
8 GtkApplicationWindow parent;
9
10 GSettings *settings;
11 GtkWidget *stack;
12 GtkWidget *gears;
13 GtkWidget *search;
14 GtkWidget *searchbar;
15};
16
17G_DEFINE_TYPE (ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW)
18
19static void
20search_text_changed (GtkEntry *entry,
21 ExampleAppWindow *win)
22{
23 const char *text;
24 GtkWidget *tab;
25 GtkWidget *view;
26 GtkTextBuffer *buffer;
27 GtkTextIter start, match_start, match_end;
28
29 text = gtk_editable_get_text (GTK_EDITABLE (entry));
30
31 if (text[0] == '\0')
32 return;
33
34 tab = gtk_stack_get_visible_child (GTK_STACK (win->stack));
35 view = gtk_scrolled_window_get_child (GTK_SCROLLED_WINDOW (tab));
36 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
37
38 /* Very simple-minded search implementation */
39 gtk_text_buffer_get_start_iter (buffer, iter: &start);
40 if (gtk_text_iter_forward_search (iter: &start, str: text, flags: GTK_TEXT_SEARCH_CASE_INSENSITIVE,
41 match_start: &match_start, match_end: &match_end, NULL))
42 {
43 gtk_text_buffer_select_range (buffer, ins: &match_start, bound: &match_end);
44 gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (view), iter: &match_start,
45 within_margin: 0.0, FALSE, xalign: 0.0, yalign: 0.0);
46 }
47}
48
49static void
50visible_child_changed (GObject *stack,
51 GParamSpec *pspec,
52 ExampleAppWindow *win)
53{
54 if (gtk_widget_in_destruction (GTK_WIDGET (stack)))
55 return;
56
57 gtk_search_bar_set_search_mode (GTK_SEARCH_BAR (win->searchbar), FALSE);
58}
59
60static void
61example_app_window_init (ExampleAppWindow *win)
62{
63 GtkBuilder *builder;
64 GMenuModel *menu;
65
66 gtk_widget_init_template (GTK_WIDGET (win));
67
68 builder = gtk_builder_new_from_resource (resource_path: "/org/gtk/exampleapp/gears-menu.ui");
69 menu = G_MENU_MODEL (gtk_builder_get_object (builder, "menu"));
70 gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (win->gears), menu_model: menu);
71 g_object_unref (object: builder);
72
73 win->settings = g_settings_new (schema_id: "org.gtk.exampleapp");
74
75 g_settings_bind (settings: win->settings, key: "transition",
76 object: win->stack, property: "transition-type",
77 flags: G_SETTINGS_BIND_DEFAULT);
78
79 g_object_bind_property (source: win->search, source_property: "active",
80 target: win->searchbar, target_property: "search-mode-enabled",
81 flags: G_BINDING_BIDIRECTIONAL);
82}
83
84static void
85example_app_window_dispose (GObject *object)
86{
87 ExampleAppWindow *win;
88
89 win = EXAMPLE_APP_WINDOW (ptr: object);
90
91 g_clear_object (&win->settings);
92
93 G_OBJECT_CLASS (example_app_window_parent_class)->dispose (object);
94}
95
96static void
97example_app_window_class_init (ExampleAppWindowClass *class)
98{
99 G_OBJECT_CLASS (class)->dispose = example_app_window_dispose;
100
101 gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
102 resource_name: "/org/gtk/exampleapp/window.ui");
103
104 gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
105 gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, gears);
106 gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, search);
107 gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, searchbar);
108
109 gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), search_text_changed);
110 gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), visible_child_changed);
111}
112
113ExampleAppWindow *
114example_app_window_new (ExampleApp *app)
115{
116 return g_object_new (EXAMPLE_APP_WINDOW_TYPE, first_property_name: "application", app, NULL);
117}
118
119void
120example_app_window_open (ExampleAppWindow *win,
121 GFile *file)
122{
123 char *basename;
124 GtkWidget *scrolled, *view;
125 char *contents;
126 gsize length;
127 GtkTextBuffer *buffer;
128 GtkTextTag *tag;
129 GtkTextIter start_iter, end_iter;
130
131 basename = g_file_get_basename (file);
132
133 scrolled = gtk_scrolled_window_new ();
134 gtk_widget_set_hexpand (widget: scrolled, TRUE);
135 gtk_widget_set_vexpand (widget: scrolled, TRUE);
136 view = gtk_text_view_new ();
137 gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
138 gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view), FALSE);
139 gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scrolled), child: view);
140 gtk_stack_add_titled (GTK_STACK (win->stack), child: scrolled, name: basename, title: basename);
141
142 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
143
144 if (g_file_load_contents (file, NULL, contents: &contents, length: &length, NULL, NULL))
145 {
146 gtk_text_buffer_set_text (buffer, text: contents, len: length);
147 g_free (mem: contents);
148 }
149
150 tag = gtk_text_buffer_create_tag (buffer, NULL, NULL);
151 g_settings_bind (settings: win->settings, key: "font",
152 object: tag, property: "font",
153 flags: G_SETTINGS_BIND_DEFAULT);
154
155 gtk_text_buffer_get_start_iter (buffer, iter: &start_iter);
156 gtk_text_buffer_get_end_iter (buffer, iter: &end_iter);
157 gtk_text_buffer_apply_tag (buffer, tag, start: &start_iter, end: &end_iter);
158
159 g_free (mem: basename);
160
161 gtk_widget_set_sensitive (widget: win->search, TRUE);
162}
163

source code of gtk/examples/application7/exampleappwin.c