ce296d2698
2) In effects.c, some EffectsValues are changed to better reflect the
strings used in the XML.
3) New EffectSettings are added for use when writing out effects to XML.
4) Added an XmlLabel structure for mapping a value to a string. Generally,
these are the union of the set of all values over the set of supported
devices.
5) There's a large array of XmlSettings used to derive the translation of
a preset to XML.
6) Add an enum for product_id and use it to set a filter for file suffix.
7) Minor cleanup in push_message() that suppresses spurious error messages.
8) Fixed a bad memset in read_data_thread().
9) In gdigi.h, a few changes in names to be consistent with XML.
There are some new definitions of LFO and VSWITCH parameters that
need to be computed.
10) In gui.c, fixed up a compiler warning.
Added a map from device id to file type and code to set a default filter
in the read dialog.
Wired up the 'save to XML' callback and reorganized the menue entries to
better distinguish between 'save to file' and 'store to device'.
In preset.c, sort the params so that what we write as XML more closely
matches what is generated on the windows side.
263 lines
8.4 KiB
C
263 lines
8.4 KiB
C
/*
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* Copyright (c) 2009 Tomasz Moń <desowin@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; under version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses>.
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*/
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#include <gio/gio.h>
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#include <expat.h>
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#include <libxml/encoding.h>
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#include <libxml/xmlreader.h>
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#include <libxml/xmlwriter.h>
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#include <string.h>
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#include "preset.h"
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#include "gdigi.h"
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#include "gui.h"
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#include "gdigi_xml.h"
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#ifndef DOXYGEN_SHOULD_SKIP_THIS
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// FIXME: Bring the xml settings into this module?
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extern XmlSettings xml_settings[];
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extern guint n_xml_settings;
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extern EffectValues values_on_off;
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/**
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* \param id modifier ID
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* \param position modifier position
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*
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* Gets modifier info.
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*
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* \return Modifier which must not be freed, or NULL if no matching Modifier has been found.
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*/
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XmlSettings *get_xml_settings (guint id, guint position)
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{
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gint x;
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for (x=0; x< n_xml_settings; x++) {
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if ((xml_settings[x].id == id) && (xml_settings[x].position == position)) {
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return xml_settings + x;
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}
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}
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return NULL;
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}
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gchar *
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map_xml_value(XmlSettings *xml, gint value)
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{
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switch (xml->values->type) {
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case VALUE_TYPE_LABEL:
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if ((xml->values == &values_on_off) && (value > 1)) {
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g_message("Skipping modifier->label %s\n", xml->label);
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return NULL;
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}
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if (value > xml->values->max || value < xml->values->min) {
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g_message("%s value %d out of range %0.1f %0.1f", xml->label, value, xml->values->min, xml->values->max);
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}
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{
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XmlLabel *labels = xml->xml_labels;
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guint labels_amt = xml->xml_labels_amt;
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gint i;
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// Maybe this can be a computation: i = xml->values->min + val
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for (i = 0; i < labels_amt; i++) {
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if (labels[i].type == value) {
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return (labels[i].label);
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}
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}
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}
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break;
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default:
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break;
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}
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return NULL;
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}
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gboolean value_is_extra (EffectValues *val, SettingParam *param)
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{
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if ((param->value < val->min) || (param->value > val->max)) {
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return TRUE;
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}
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return FALSE;
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}
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#define GDIGI_ENCODING "utf-8"
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void
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write_preset_to_xml(Preset *preset, gchar *filename)
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{
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int rc;
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xmlTextWriterPtr writer;
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GList *iter_params = preset->params;
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guint last_id = 0;
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guint last_position = 0;
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printf("Creating a new xml doc\n");
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/* Create a new XmlWriter for uri, with no compression. */
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writer = xmlNewTextWriterFilename(filename, 0);
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if (writer == NULL) {
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printf("testXmlwriterFilename: Error creating the xml writer\n");
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return;
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}
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/*
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* Start the document with the xml default for the version,
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* encoding and the default for the standalone declaration.
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*/
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rc = xmlTextWriterStartDocument(writer, NULL, GDIGI_ENCODING, NULL);
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if (rc < 0) {
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printf
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("testXmlwriterFilename: Error at xmlTextWriterStartDocument\n");
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return;
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}
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rc = xmlTextWriterSetIndent(writer, 1);
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rc = xmlTextWriterSetIndentString(writer, BAD_CAST " ");
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/* Write the tag identifying type of prefix, schema version and ns. */
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rc = xmlTextWriterStartElement(writer, BAD_CAST get_preset_filename(product_id));
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rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "SchemaVersion",
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BAD_CAST "1.2");
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rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "xmlns",
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BAD_CAST "http://www.digitech.com/xml/preset");
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/* Write the Name tag. */
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rc = xmlTextWriterWriteElement(writer, BAD_CAST "Name", BAD_CAST preset->name);
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rc = xmlTextWriterStartElement(writer, BAD_CAST "Params");
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while (iter_params) {
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XmlSettings *xml;
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SettingParam *param = (SettingParam *) iter_params->data;
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if (param->id == last_id && param->position == last_position) {
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g_message("Skipping duplicate parameter id %d position %d",
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last_id, last_position);
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iter_params = iter_params->next;
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continue;
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}
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rc = xmlTextWriterStartElement(writer, BAD_CAST "Param");
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rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ID",
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"%d", param->id);
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rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "Position",
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"%d", param->position);
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rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "Value",
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"%d", param->value);
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last_id = param->id;
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last_position = param->position;
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xml = get_xml_settings(param->id, param->position);
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if (!xml) {
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printf("Failed to get xml settings for id %d position %d\n",
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param->id, param->position);
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} else {
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ValueType type;
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gchar *suffix = "";
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gdouble step = 1.0;
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gint offset = 0;
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gboolean decimal = FALSE;
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EffectValues *values = NULL;
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rc = xmlTextWriterWriteElement(writer, BAD_CAST "Name",
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BAD_CAST xml->label);
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values = xml->values;
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type = values->type;
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while ((type & VALUE_TYPE_EXTRA) && value_is_extra(values, param)) {
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values = values->extra;
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type = values->type;
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}
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type &= ~VALUE_TYPE_EXTRA;
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if (type & VALUE_TYPE_OFFSET) {
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offset = values->offset;
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type &= ~VALUE_TYPE_OFFSET;
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}
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if (type & VALUE_TYPE_STEP) {
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step = values->step;
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type &= ~VALUE_TYPE_STEP;
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}
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if (type & VALUE_TYPE_SUFFIX) {
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suffix = values->suffix;
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type &= ~VALUE_TYPE_SUFFIX;
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}
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if (type & VALUE_TYPE_DECIMAL) {
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decimal = TRUE;
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type &= ~VALUE_TYPE_DECIMAL;
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}
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switch (type) {
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case VALUE_TYPE_LABEL:
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{
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char *textp = map_xml_value(xml, param->value);
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if (!textp) {
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g_message("Unable to map %s value %d for id %d position %d",
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xml->label, param->value, param->id, param->position);
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textp = "";
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}
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rc = xmlTextWriterWriteElement(writer, BAD_CAST "Text",
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BAD_CAST textp);
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break;
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}
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case VALUE_TYPE_PLAIN:
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{
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if (decimal) {
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double value = (param->value + offset) * step;
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rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "Text",
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"%0.2f%s", value, suffix);
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} else {
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gint value = (param->value + offset) * step;
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rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "Text",
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"%d%s", value, suffix);
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}
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break;
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}
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case VALUE_TYPE_NONE:
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rc = xmlTextWriterStartElement(writer, BAD_CAST "Text");
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rc = xmlTextWriterEndElement(writer);
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break;
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default:
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g_message("Unhandled value type %d", type);
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break;
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}
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}
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rc = xmlTextWriterEndElement(writer);
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iter_params = iter_params->next;
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}
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/* Here we could close the elements ORDER and EXAMPLE using the
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* function xmlTextWriterEndElement, but since we do not want to
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* write any other elements, we simply call xmlTextWriterEndDocument,
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* which will do all the work. */
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rc = xmlTextWriterEndDocument(writer);
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if (rc < 0) {
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printf("testXmlwriterFilename: Error at xmlTextWriterEndDocument\n");
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return;
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}
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xmlFreeTextWriter(writer);
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}
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#endif /* DOXYGEN_SHOULD_SKIP_THIS */
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