mutter/tests/interactive/test-text-field.c

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#include <stdlib.h>
#include <gmodule.h>
#include <clutter/clutter.h>
#define FONT "Mono Bold 14px"
static void
on_entry_paint (ClutterActor *actor,
gpointer data)
{
ClutterActorBox allocation = { 0, };
gfloat width, height;
clutter_actor_get_allocation_box (actor, &allocation);
clutter_actor_box_clamp_to_pixel (&allocation);
clutter_actor_box_get_size (&allocation, &width, &height);
cogl_set_source_color4ub (255, 255, 255, 24);
cogl_path_round_rectangle (0, 0, width, height, 4.0, 1.0);
cogl_path_stroke ();
}
static void
on_entry_activate (ClutterText *text,
gpointer data)
{
g_print ("Text activated: %s (cursor: %d, selection at: %d)\n",
clutter_text_get_text (text),
clutter_text_get_cursor_position (text),
clutter_text_get_selection_bound (text));
}
#define is_hex_digit(c) (((c) >= '0' && (c) <= '9') || \
((c) >= 'a' && (c) <= 'f') || \
((c) >= 'A' && (c) <= 'F'))
#define to_hex_digit(c) (((c) <= '9') ? (c) - '0' : ((c) & 7) + 9)
static gboolean
on_captured_event (ClutterText *text,
ClutterEvent *event,
gpointer dummy G_GNUC_UNUSED)
{
gboolean is_unicode_mode = FALSE;
gunichar c;
guint keyval;
if (event->type != CLUTTER_KEY_PRESS)
return FALSE;
is_unicode_mode = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (text),
"unicode-mode"));
c = clutter_event_get_key_unicode (event);
keyval = clutter_event_get_key_symbol (event);
if (keyval == CLUTTER_u)
{
ClutterModifierType mods = clutter_event_get_state (event);
if (is_unicode_mode)
{
GString *str = g_object_get_data (G_OBJECT (text), "unicode-str");
clutter_text_set_preedit_string (text, NULL, NULL, 0);
g_object_set_data (G_OBJECT (text), "unicode-mode",
GINT_TO_POINTER (FALSE));
g_object_set_data (G_OBJECT (text), "unicode-str",
NULL);
g_string_free (str, TRUE);
return FALSE;
}
if ((mods & CLUTTER_CONTROL_MASK) &&
(mods & CLUTTER_SHIFT_MASK))
{
PangoAttrList *attrs;
PangoAttribute *a;
GString *str = g_string_sized_new (5);
g_string_append (str, "u");
g_object_set_data (G_OBJECT (text),
"unicode-mode",
GINT_TO_POINTER (TRUE));
g_object_set_data (G_OBJECT (text),
"unicode-str",
str);
attrs = pango_attr_list_new ();
a = pango_attr_underline_new (PANGO_UNDERLINE_SINGLE);
a->start_index = 0;
a->end_index = str->len;
pango_attr_list_insert (attrs, a);
clutter_text_set_preedit_string (text, str->str, attrs, str->len);
pango_attr_list_unref (attrs);
return TRUE;
}
return FALSE;
}
else if (is_unicode_mode && is_hex_digit (c))
{
GString *str = g_object_get_data (G_OBJECT (text), "unicode-str");
PangoAttrList *attrs;
PangoAttribute *a;
gchar buf[8];
gsize len;
len = g_unichar_to_utf8 (c, buf);
buf[len] = '\0';
g_string_append (str, buf);
g_print ("added '%s' to '%s' (len:%d)",
buf,
str->str,
(int) str->len);
attrs = pango_attr_list_new ();
a = pango_attr_underline_new (PANGO_UNDERLINE_SINGLE);
a->start_index = 0;
a->end_index = str->len;
pango_attr_list_insert (attrs, a);
clutter_text_set_preedit_string (text, str->str, attrs, str->len);
pango_attr_list_unref (attrs);
return TRUE;
}
else if (is_unicode_mode && (keyval == CLUTTER_BackSpace))
{
GString *str = g_object_get_data (G_OBJECT (text), "unicode-str");
PangoAttrList *attrs;
PangoAttribute *a;
g_string_truncate (str, str->len - 1);
attrs = pango_attr_list_new ();
a = pango_attr_underline_new (PANGO_UNDERLINE_SINGLE);
a->start_index = 0;
a->end_index = str->len;
pango_attr_list_insert (attrs, a);
clutter_text_set_preedit_string (text, str->str, attrs, str->len);
pango_attr_list_unref (attrs);
return TRUE;
}
else if (is_unicode_mode &&
(keyval == CLUTTER_Return ||
keyval == CLUTTER_KP_Enter ||
keyval == CLUTTER_ISO_Enter ||
keyval == CLUTTER_KP_Space))
{
GString *str = g_object_get_data (G_OBJECT (text), "unicode-str");
const gchar *contents = clutter_text_get_text (text);
gunichar uchar = 0;
gchar ch;
gint i;
clutter_text_set_preedit_string (text, NULL, NULL, 0);
g_object_set_data (G_OBJECT (text), "unicode-mode",
GINT_TO_POINTER (FALSE));
g_object_set_data (G_OBJECT (text), "unicode-str",
NULL);
for (i = 0; i < str->len; i++)
{
ch = str->str[i];
if (is_hex_digit (ch))
uchar += ((gunichar) to_hex_digit (ch) << ((4 - i) * 4));
}
g_assert (g_unichar_validate (uchar));
g_string_overwrite (str, 0, contents);
g_string_insert_unichar (str,
clutter_text_get_cursor_position (text),
uchar);
i = clutter_text_get_cursor_position (text);
clutter_text_set_text (text, str->str);
if (i >= 0)
i += 1;
else
i = -1;
clutter_text_set_cursor_position (text, i);
clutter_text_set_selection_bound (text, i);
g_string_free (str, TRUE);
return TRUE;
}
else
return FALSE;
}
static ClutterActor *
create_label (const ClutterColor *color,
const gchar *text)
{
ClutterActor *retval = clutter_text_new ();
clutter_actor_set_width (retval, 200);
clutter_text_set_font_name (CLUTTER_TEXT (retval), FONT);
clutter_text_set_color (CLUTTER_TEXT (retval), color);
clutter_text_set_markup (CLUTTER_TEXT (retval), text);
clutter_text_set_editable (CLUTTER_TEXT (retval), FALSE);
clutter_text_set_selectable (CLUTTER_TEXT (retval), FALSE);
clutter_text_set_single_line_mode (CLUTTER_TEXT (retval), TRUE);
clutter_text_set_ellipsize (CLUTTER_TEXT (retval), PANGO_ELLIPSIZE_END);
return retval;
}
static ClutterActor *
create_entry (const ClutterColor *color,
const gchar *text,
gunichar password_char,
gint max_length)
{
ClutterActor *retval = clutter_text_new_full (FONT, text, color);
ClutterColor selection = { 0, };
clutter_actor_set_width (retval, 200);
clutter_actor_set_reactive (retval, TRUE);
clutter_color_darken (color, &selection);
clutter_text_set_editable (CLUTTER_TEXT (retval), TRUE);
clutter_text_set_selectable (CLUTTER_TEXT (retval), TRUE);
clutter_text_set_activatable (CLUTTER_TEXT (retval), TRUE);
clutter_text_set_single_line_mode (CLUTTER_TEXT (retval), TRUE);
clutter_text_set_password_char (CLUTTER_TEXT (retval), password_char);
clutter_text_set_cursor_color (CLUTTER_TEXT (retval), &selection);
clutter_text_set_max_length (CLUTTER_TEXT (retval), max_length);
g_signal_connect (retval, "activate",
G_CALLBACK (on_entry_activate),
NULL);
g_signal_connect (retval, "paint",
G_CALLBACK (on_entry_paint),
NULL);
g_signal_connect (retval, "captured-event",
G_CALLBACK (on_captured_event),
NULL);
return retval;
}
G_MODULE_EXPORT gint
test_text_field_main (gint argc,
gchar **argv)
{
ClutterActor *stage;
ClutterActor *text;
ClutterColor entry_color = {0x33, 0xff, 0x33, 0xff};
ClutterColor label_color = {0xff, 0xff, 0xff, 0xff};
ClutterColor background_color = {0x00, 0x00, 0x00, 0xff};
ClutterUnits h_padding, v_padding;
gfloat width, height;
clutter_init (&argc, &argv);
stage = clutter_stage_get_default ();
clutter_stage_set_color (CLUTTER_STAGE (stage), &background_color);
clutter_units_em_for_font (&h_padding, FONT, 2.0); /* 2em */
clutter_units_em_for_font (&v_padding, FONT, 3.0); /* 3em */
g_print ("padding: h:%.2f px, v:%.2f px\n",
clutter_units_to_pixels (&h_padding),
clutter_units_to_pixels (&v_padding));
text = create_label (&label_color, "<b>Input field:</b> ");
clutter_actor_set_position (text, 10, 10);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), text);
width = clutter_actor_get_width (text);
height = clutter_actor_get_height (text);
text = create_entry (&entry_color, "<i>some</i> text", 0, 0);
clutter_actor_set_position (text,
width + 10 + clutter_units_to_pixels (&h_padding),
10);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), text);
text = create_label (&label_color, "<i>A very long password field</i>: ");
clutter_actor_set_position (text,
10,
height + 10 + clutter_units_to_pixels (&v_padding));
clutter_container_add_actor (CLUTTER_CONTAINER (stage), text);
text = create_entry (&entry_color, "password", '*', 8);
clutter_actor_set_position (text,
width + 10 + clutter_units_to_pixels (&h_padding),
height + 10 + clutter_units_to_pixels (&v_padding));
clutter_container_add_actor (CLUTTER_CONTAINER (stage), text);
clutter_actor_show (stage);
clutter_main ();
return EXIT_SUCCESS;
}