5 horizontal_policy_changed (GtkComboBox *combo_box,
8 GtkScrollablePolicy policy = gtk_combo_box_get_active (combo_box);
10 gtk_scrollable_set_hscroll_policy (GTK_SCROLLABLE (viewport), policy);
14 vertical_policy_changed (GtkComboBox *combo_box,
15 GtkViewport *viewport)
17 GtkScrollablePolicy policy = gtk_combo_box_get_active (combo_box);
19 gtk_scrollable_set_vscroll_policy (GTK_SCROLLABLE (viewport), policy);
23 label_flip_changed (GtkComboBox *combo_box,
26 gint active = gtk_combo_box_get_active (combo_box);
29 gtk_label_set_angle (label, 0.0);
31 gtk_label_set_angle (label, 90.0);
35 content_width_changed (GtkSpinButton *spin_button,
38 GtkScrolledWindow *swindow = data;
41 value = gtk_spin_button_get_value (spin_button);
42 gtk_scrolled_window_set_min_content_width (swindow, (gint)value);
46 content_height_changed (GtkSpinButton *spin_button,
49 GtkScrolledWindow *swindow = data;
52 value = gtk_spin_button_get_value (spin_button);
53 gtk_scrolled_window_set_min_content_height (swindow, (gint)value);
57 scrollable_policy (void)
59 GtkWidget *window, *swindow, *hbox, *vbox, *frame, *cntl;
60 GtkWidget *viewport, *label, *expander, *widget;
62 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
63 hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, FALSE, 2);
64 vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, FALSE, 6);
66 gtk_container_set_border_width (GTK_CONTAINER (window), 8);
68 gtk_widget_show (vbox);
69 gtk_widget_show (hbox);
70 gtk_container_add (GTK_CONTAINER (window), hbox);
71 gtk_box_pack_start (GTK_BOX (hbox), vbox, FALSE, FALSE, 0);
73 frame = gtk_frame_new ("Scrolled Window");
74 gtk_widget_show (frame);
75 gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
77 swindow = gtk_scrolled_window_new (NULL, NULL);
78 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
79 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
81 gtk_widget_show (swindow);
82 gtk_container_add (GTK_CONTAINER (frame), swindow);
84 viewport = gtk_viewport_new (NULL, NULL);
85 label = gtk_label_new ("Here is a wrapping label with a minimum width-chars of 40 and "
86 "a natural max-width-chars of 100 to demonstrate the usage of "
87 "scrollable widgets \"hscroll-policy\" and \"vscroll-policy\" "
88 "properties. Note also that when playing with the window height, "
89 "one can observe that the vscrollbar disappears as soon as there "
90 "is enough height to fit the content vertically if the window were "
91 "to be allocated a width without a vscrollbar present");
93 gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
94 gtk_label_set_width_chars (GTK_LABEL (label), 40);
95 gtk_label_set_max_width_chars (GTK_LABEL (label), 100);
97 gtk_widget_show (label);
98 gtk_widget_show (viewport);
99 gtk_container_add (GTK_CONTAINER (viewport), label);
100 gtk_container_add (GTK_CONTAINER (swindow), viewport);
102 /* Add controls here */
103 expander = gtk_expander_new ("Controls");
104 gtk_expander_set_expanded (GTK_EXPANDER (expander), TRUE);
105 cntl = gtk_box_new (GTK_ORIENTATION_VERTICAL, FALSE, 2);
106 gtk_widget_show (cntl);
107 gtk_widget_show (expander);
108 gtk_container_add (GTK_CONTAINER (expander), cntl);
109 gtk_box_pack_start (GTK_BOX (vbox), expander, FALSE, FALSE, 0);
111 /* Add Horizontal policy control here */
112 hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, FALSE, 2);
113 gtk_widget_show (hbox);
115 widget = gtk_label_new ("hscroll-policy");
116 gtk_widget_show (widget);
117 gtk_box_pack_start (GTK_BOX (hbox), widget, TRUE, TRUE, 0);
119 widget = gtk_combo_box_text_new ();
120 gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (widget), "Minimum");
121 gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (widget), "Natural");
122 gtk_combo_box_set_active (GTK_COMBO_BOX (widget), 0);
123 gtk_widget_show (widget);
125 gtk_box_pack_start (GTK_BOX (hbox), widget, TRUE, TRUE, 0);
126 gtk_box_pack_start (GTK_BOX (cntl), hbox, FALSE, FALSE, 0);
128 g_signal_connect (G_OBJECT (widget), "changed",
129 G_CALLBACK (horizontal_policy_changed), viewport);
131 /* Add Vertical policy control here */
132 hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, FALSE, 2);
133 gtk_widget_show (hbox);
135 widget = gtk_label_new ("vscroll-policy");
136 gtk_widget_show (widget);
137 gtk_box_pack_start (GTK_BOX (hbox), widget, TRUE, TRUE, 0);
139 widget = gtk_combo_box_text_new ();
140 gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (widget), "Minimum");
141 gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (widget), "Natural");
142 gtk_combo_box_set_active (GTK_COMBO_BOX (widget), 0);
143 gtk_widget_show (widget);
145 gtk_box_pack_start (GTK_BOX (hbox), widget, TRUE, TRUE, 0);
146 gtk_box_pack_start (GTK_BOX (cntl), hbox, FALSE, FALSE, 0);
148 g_signal_connect (G_OBJECT (widget), "changed",
149 G_CALLBACK (vertical_policy_changed), viewport);
151 /* Content size controls */
152 hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, FALSE, 2);
154 widget = gtk_label_new ("min-content-width");
155 gtk_widget_show (widget);
156 gtk_box_pack_start (GTK_BOX (hbox), widget, TRUE, TRUE, 0);
158 widget = gtk_spin_button_new_with_range (100.0, 1000.0, 10.0);
159 gtk_box_pack_start (GTK_BOX (hbox), widget, TRUE, TRUE, 0);
160 gtk_box_pack_start (GTK_BOX (cntl), hbox, FALSE, FALSE, 0);
161 gtk_widget_show (widget);
162 gtk_widget_show (hbox);
164 g_signal_connect (G_OBJECT (widget), "value-changed",
165 G_CALLBACK (content_width_changed), swindow);
167 hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, FALSE, 2);
169 widget = gtk_label_new ("min-content-height");
170 gtk_widget_show (widget);
171 gtk_box_pack_start (GTK_BOX (hbox), widget, TRUE, TRUE, 0);
173 widget = gtk_spin_button_new_with_range (100.0, 1000.0, 10.0);
174 gtk_box_pack_start (GTK_BOX (hbox), widget, TRUE, TRUE, 0);
175 gtk_box_pack_start (GTK_BOX (cntl), hbox, FALSE, FALSE, 0);
176 gtk_widget_show (widget);
177 gtk_widget_show (hbox);
179 g_signal_connect (G_OBJECT (widget), "value-changed",
180 G_CALLBACK (content_height_changed), swindow);
182 /* Add Label orientation control here */
183 hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, FALSE, 2);
184 gtk_widget_show (hbox);
186 widget = gtk_label_new ("label-flip");
187 gtk_widget_show (widget);
188 gtk_box_pack_start (GTK_BOX (hbox), widget, TRUE, TRUE, 0);
190 widget = gtk_combo_box_text_new ();
191 gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (widget), "Horizontal");
192 gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (widget), "Vertical");
193 gtk_combo_box_set_active (GTK_COMBO_BOX (widget), 0);
194 gtk_widget_show (widget);
196 gtk_box_pack_start (GTK_BOX (hbox), widget, TRUE, TRUE, 0);
197 gtk_box_pack_start (GTK_BOX (cntl), hbox, FALSE, FALSE, 0);
199 g_signal_connect (G_OBJECT (widget), "changed",
200 G_CALLBACK (label_flip_changed), label);
202 gtk_widget_show (window);
207 main (int argc, char *argv[])
209 gtk_init (NULL, NULL);
211 scrollable_policy ();