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