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Finish XML layout engine.

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This commit is contained in:
Daiki Ueno
2011-01-27 16:27:06 +09:00
parent 4008706bb0
commit b811796bbc
7 changed files with 448 additions and 38 deletions
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353
eek/eek-xml-layout.c
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@ -4,6 +4,7 @@
*/
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
@ -12,6 +13,7 @@
#include "eek-xml-layout.h"
#include "eek-keyboard.h"
#include "eek-section.h"
#include "eek-key.h"
enum {
PROP_0,
@ -27,6 +29,7 @@ G_DEFINE_TYPE (EekXmlLayout, eek_xml_layout, EEK_TYPE_LAYOUT);
struct _EekXmlLayoutPrivate
{
GInputStream *source;
GHashTable *outline_hash;
};
#define BUFSIZE 8192
@ -35,43 +38,57 @@ struct _ParseCallbackData {
GSList *element_stack;
GString *text;
EekLayout *layout;
EekKeyboard *keyboard;
EekSection *section;
EekKey *key;
gint num_columns;
EekOrientation orientation;
GSList *points;
guint keycode;
GSList *keysyms;
gint groups, levels;
EekOutline outline;
gchar *oref;
GHashTable *key_oref_hash;
GHashTable *oref_outline_hash;
};
typedef struct _ParseCallbackData ParseCallbackData;
static const gchar *valid_path_list[] = {
"keyboard",
"keyboard/bounds",
"keyboard/section",
"keyboard/outline",
"section/bounds",
"section/angle",
"section/key",
"bounds/key",
"outline/key",
"keysyms/key",
"keycode/key",
"index/key",
"groups/keysyms",
"levels/keysyms",
"keysym/keysyms",
"bounds/keyboard",
"section/keyboard",
"outline/keyboard",
"bounds/section/keyboard",
"angle/section/keyboard",
"row/section/keyboard",
"columns/row/section/keyboard",
"orientation/row/section/keyboard",
"key/section/keyboard",
"bounds/key/section/keyboard",
"outline-ref/key/section/keyboard",
"keysyms/key/section/keyboard",
"keycode/key/section/keyboard",
"index/key/section/keyboard",
"groups/keysyms/key/section/keyboard",
"levels/keysyms/key/section/keyboard",
"keysym/keysyms/key/section/keyboard",
"point/outline/keyboard"
};
static gchar *
join_element_names (GSList *element_names)
strjoin_slist (GSList *slist, const gchar *delimiter)
{
GString *string = g_string_sized_new (64);
if (element_names == NULL)
if (slist == NULL)
return g_strdup ("");
else
for (; element_names; element_names = g_slist_next (element_names)) {
g_string_append (string, element_names->data);
if (g_slist_next (element_names))
g_string_append (string, "/");
for (; slist; slist = g_slist_next (slist)) {
g_string_append (string, slist->data);
if (g_slist_next (slist))
g_string_append (string, delimiter);
}
return g_string_free (string, FALSE);
}
@ -86,7 +103,7 @@ validate (const gchar *element_name,
GSList *head;
head = g_slist_prepend (element_stack, element_name);
element_path = join_element_names (head);
element_path = strjoin_slist (head, "/");
g_slist_free1 (head);
for (i = 0; i < G_N_ELEMENTS(valid_path_list); i++) {
@ -120,8 +137,8 @@ start_element_callback (GMarkupParseContext *pcontext,
ParseCallbackData *data = user_data;
const gchar **names = attribute_names;
const gchar **values = attribute_values;
gint column = -1, row = -1;
gchar *name = NULL;
gint column = -1, row = -1, groups = -1, levels = -1;
gchar *name = NULL, *id = NULL;
validate (element_name, data->element_stack, error);
if (error && *error)
@ -134,6 +151,12 @@ start_element_callback (GMarkupParseContext *pcontext,
row = strtol (*values, NULL, 10);
else if (g_strcmp0 (*names, "name") == 0)
name = g_strdup (*values);
else if (g_strcmp0 (*names, "id") == 0)
id = g_strdup (*values);
else if (g_strcmp0 (*names, "groups") == 0)
groups = strtol (*values, NULL, 10);
else if (g_strcmp0 (*names, "levels") == 0)
levels = strtol (*values, NULL, 10);
names++;
values++;
}
@ -144,19 +167,41 @@ start_element_callback (GMarkupParseContext *pcontext,
NULL);
if (name)
eek_element_set_name (EEK_ELEMENT(data->keyboard), name);
} else if (g_strcmp0 (element_name, "section") == 0) {
goto out;
}
if (g_strcmp0 (element_name, "section") == 0) {
data->section = eek_keyboard_create_section (data->keyboard);
if (name)
eek_element_set_name (EEK_ELEMENT(data->section), name);
} else if (g_strcmp0 (element_name, "key") == 0) {
goto out;
}
if (g_strcmp0 (element_name, "key") == 0) {
data->key = eek_section_create_key (data->section, column, row);
if (name)
eek_element_set_name (EEK_ELEMENT(data->key), name);
goto out;
}
if (g_strcmp0 (element_name, "keysyms") == 0) {
data->groups = groups;
data->levels = levels;
data->keysyms = NULL;
goto out;
}
if (g_strcmp0 (element_name, "outline") == 0) {
data->oref = g_strdup (id);
goto out;
}
out:
g_free (name);
g_free (id);
data->element_stack = g_slist_prepend (data->element_stack,
g_strdup (element_name));
data->text->len = 0;
}
static void
@ -167,10 +212,161 @@ end_element_callback (GMarkupParseContext *pcontext,
{
ParseCallbackData *data = user_data;
GSList *head = data->element_stack;
gchar *text, **strv;
gint i;
g_free (head->data);
data->element_stack = g_slist_next (data->element_stack);
g_slist_free1 (head);
text = g_strndup (data->text->str, data->text->len);
if (g_strcmp0 (element_name, "section") == 0) {
data->section = NULL;
goto out;
}
if (g_strcmp0 (element_name, "key") == 0) {
data->key = NULL;
goto out;
}
if (g_strcmp0 (element_name, "keysyms") == 0) {
gint num_keysyms = data->groups * data->levels;
guint *keysyms = g_slice_alloc0 (sizeof(guint) * num_keysyms);
head = data->keysyms = g_slist_reverse (data->keysyms);
for (i = 0; i < num_keysyms; i++) {
if (head) {
keysyms[i] = (guint)head->data;
head = g_slist_next (head);
} else
keysyms[i] = EEK_INVALID_KEYSYM;
}
eek_key_set_keysyms (data->key, keysyms, data->groups, data->levels);
g_slice_free1 (sizeof(guint) * num_keysyms, keysyms);
g_slist_free (data->keysyms);
data->keysyms = NULL;
goto out;
}
if (g_strcmp0 (element_name, "outline") == 0) {
EekOutline *outline = g_slice_new (EekOutline);
outline->num_points = g_slist_length (data->points);
outline->points = g_slice_alloc0 (sizeof (EekPoint) *
outline->num_points);
for (head = data->points = g_slist_reverse (data->points), i = 0;
head;
head = g_slist_next (head), i++) {
memcpy (&outline->points[i], head->data, sizeof (EekPoint));
g_slice_free1 (sizeof (EekPoint), head->data);
}
g_slist_free (data->points);
data->points = NULL;
g_hash_table_insert (data->oref_outline_hash,
g_strdup (data->oref),
outline);
g_free (data->oref);
goto out;
}
if (g_strcmp0 (element_name, "point") == 0) {
EekPoint *point;
strv = g_strsplit (text, ",", -1);
if (g_strv_length (strv) != 2) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"invalid format for %s \"%s\"",
element_name,
text);
goto out;
}
point = g_slice_new (EekPoint);
point->x = g_strtod (strv[0], NULL);
point->y = g_strtod (strv[1], NULL);
g_strfreev (strv);
data->points = g_slist_prepend (data->points, point);
goto out;
}
if (g_strcmp0 (element_name, "bounds") == 0) {
EekBounds bounds;
strv = g_strsplit (text, ",", -1);
if (g_strv_length (strv) != 4) {
g_set_error (error,
G_MARKUP_ERROR,
G_MARKUP_ERROR_UNKNOWN_ELEMENT,
"invalid format for %s \"%s\"",
element_name,
text);
goto out;
}
bounds.x = g_strtod (strv[0], NULL);
bounds.y = g_strtod (strv[1], NULL);
bounds.width = g_strtod (strv[2], NULL);
bounds.height = g_strtod (strv[3], NULL);
g_strfreev (strv);
if (g_strcmp0 (data->element_stack->data, "keyboard") == 0)
eek_element_set_bounds (EEK_ELEMENT(data->keyboard), &bounds);
else if (g_strcmp0 (data->element_stack->data, "section") == 0)
eek_element_set_bounds (EEK_ELEMENT(data->section), &bounds);
else if (g_strcmp0 (data->element_stack->data, "key") == 0)
eek_element_set_bounds (EEK_ELEMENT(data->key), &bounds);
goto out;
}
if (g_strcmp0 (element_name, "columns") == 0) {
data->num_columns = strtol (text, NULL, 10);
goto out;
}
if (g_strcmp0 (element_name, "orientation") == 0) {
data->orientation = strtol (text, NULL, 10);
goto out;
}
if (g_strcmp0 (element_name, "row") == 0) {
eek_section_add_row (data->section,
data->num_columns,
data->orientation);
data->num_columns = 0;
data->orientation = EEK_ORIENTATION_HORIZONTAL;
goto out;
}
if (g_strcmp0 (element_name, "keycode") == 0) {
eek_key_set_keycode (data->key, strtoul (text, NULL, 10));
goto out;
}
if (g_strcmp0 (element_name, "keysym") == 0) {
guint keysym = strtoul (text, NULL, 10);
data->keysyms = g_slist_prepend (data->keysyms, (gpointer)keysym);
goto out;
}
if (g_strcmp0 (element_name, "outline-ref") == 0) {
g_hash_table_insert (data->key_oref_hash, data->key, g_strdup (text));
goto out;
}
out:
g_free (text);
}
static void
@ -180,6 +376,8 @@ text_callback (GMarkupParseContext *pcontext,
gpointer user_data,
GError **error)
{
ParseCallbackData *data = user_data;
g_string_append_len (data->text, text, text_len);
}
static const GMarkupParser parser = {
@ -190,6 +388,42 @@ static const GMarkupParser parser = {
0
};
static void
outline_free (gpointer data)
{
EekOutline *outline = data;
g_slice_free1 (sizeof (EekPoint) * outline->num_points, outline->points);
g_boxed_free (EEK_TYPE_OUTLINE, outline);
}
static void scale_bounds_callback (EekElement *element,
gpointer user_data);
static void
scale_bounds (EekElement *element,
gdouble scale)
{
EekBounds bounds;
eek_element_get_bounds (element, &bounds);
bounds.x *= scale;
bounds.y *= scale;
bounds.width *= scale;
bounds.height *= scale;
if (EEK_IS_CONTAINER(element))
eek_container_foreach_child (EEK_CONTAINER(element),
scale_bounds_callback,
&scale);
}
static void
scale_bounds_callback (EekElement *element,
gpointer user_data)
{
scale_bounds (element, *(gdouble *)user_data);
}
static EekKeyboard *
eek_xml_layout_real_create_keyboard (EekLayout *self,
gdouble initial_width,
@ -200,12 +434,25 @@ eek_xml_layout_real_create_keyboard (EekLayout *self,
GError *error;
gchar buffer[BUFSIZE];
ParseCallbackData data;
EekBounds bounds;
gdouble scale;
GHashTableIter iter;
gpointer k, v;
g_return_val_if_fail (priv->source, NULL);
data.element_stack = NULL;
memset (&data, 0, sizeof data);
data.layout = self;
data.text = g_string_sized_new (BUFSIZE);
data.keyboard = NULL;
data.key_oref_hash = g_hash_table_new_full (g_direct_hash,
g_direct_equal,
NULL,
g_free);
data.oref_outline_hash = g_hash_table_new_full (g_str_hash,
g_str_equal,
g_free,
outline_free);
pcontext = g_markup_parse_context_new (&parser, 0, &data, NULL);
while (1) {
gssize nread;
@ -221,11 +468,50 @@ eek_xml_layout_real_create_keyboard (EekLayout *self,
if (!g_markup_parse_context_parse (pcontext, buffer, nread, &error))
break;
}
if (error)
g_warning ("%s", error->message);
error = NULL;
g_markup_parse_context_end_parse (pcontext, &error);
if (error)
g_warning ("%s", error->message);
g_markup_parse_context_free (pcontext);
if (!data.keyboard)
goto out;
eek_element_get_bounds (EEK_ELEMENT(data.keyboard), &bounds);
scale = initial_width < initial_height ? bounds.width / initial_width :
bounds.height / initial_height;
g_hash_table_iter_init (&iter, data.key_oref_hash);
while (g_hash_table_iter_next (&iter, &k, &v)) {
EekOutline *outline = g_hash_table_lookup (data.oref_outline_hash, v);
g_assert (outline);
eek_key_set_outline (EEK_KEY(k), outline);
}
#if 0
g_hash_table_iter_init (&iter, data.oref_outline_hash);
while (g_hash_table_iter_next (&iter, &k, &v)) {
EekOutline *outline = v;
gint i;
for (i = 0; i < outline->num_points; i++) {
outline->points[i].x *= scale;
outline->points[i].y *= scale;
}
}
scale_bounds (EEK_ELEMENT(data.keyboard), scale);
#endif
out:
g_string_free (data.text, TRUE);
if (data.key_oref_hash)
g_hash_table_destroy (data.key_oref_hash);
priv->outline_hash = data.oref_outline_hash;
return data.keyboard;
}
@ -277,6 +563,18 @@ eek_xml_layout_dispose (GObject *object)
g_object_unref (priv->source);
priv->source = NULL;
}
G_OBJECT_CLASS (eek_xml_layout_parent_class)->dispose (object);
}
static void
eek_xml_layout_finalize (GObject *object)
{
EekXmlLayoutPrivate *priv = EEK_XML_LAYOUT_GET_PRIVATE (object);
if (priv->outline_hash)
g_hash_table_unref (priv->outline_hash);
G_OBJECT_CLASS (eek_xml_layout_parent_class)->finalize (object);
}
static void
@ -293,6 +591,7 @@ eek_xml_layout_class_init (EekXmlLayoutClass *klass)
gobject_class->set_property = eek_xml_layout_set_property;
gobject_class->get_property = eek_xml_layout_get_property;
gobject_class->dispose = eek_xml_layout_dispose;
gobject_class->finalize = eek_xml_layout_finalize;
pspec = g_param_spec_object ("source",
"Source",