parameter.cpp revision dfb3bedecacaed5e6c8e1fe5da96c987d15cc9d6
/** @file
* @brief Parameters for extensions.
*/
/* Author:
* Ted Gould <ted@gould.cx>
* Johan Engelen <johan@shouraizou.nl>
* Jon A. Cruz <jon@joncruz.org>
*
* Copyright (C) 2005-2007 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef linux // does the dollar sign need escaping when passed as string parameter?
# define ESCAPE_DOLLAR_COMMANDLINE
#endif
#include <xml/node.h>
#include <extension/extension.h>
#include "document-private.h"
#include "sp-object.h"
#include <color.h>
#include "widgets/sp-color-selector.h"
#include "widgets/sp-color-notebook.h"
#include "parameter.h"
#include "bool.h"
#include "color.h"
#include "description.h"
#include "enum.h"
#include "float.h"
#include "int.h"
#include "notebook.h"
#include "radiobutton.h"
#include "string.h"
namespace Inkscape {
namespace Extension {
/**
\return None
\brief This function creates a parameter that can be used later. This
is typically done in the creation of the extension and defined
in the XML file describing the extension (it's private so people
have to use the system) :)
\param in_repr The XML describing the parameter
This function first grabs all of the data out of the Repr and puts
it into local variables. Actually, these are just pointers, and the
data is not duplicated so we need to be careful with it. If there
isn't a name or a type in the XML, then no parameter is created as
the function just returns.
From this point on, we're pretty committed as we've allocated an
object and we're starting to fill it. The name is set first, and
is created with a strdup to actually allocate memory for it. Then
there is a case statement (roughly because strcmp requires 'ifs')
based on what type of parameter this is. Depending which type it
is, the value is interpreted differently, but they are relatively
straight forward. In all cases the value is set to the default
value from the XML and the type is set to the interpreted type.
*/
Parameter *
Parameter::make (Inkscape::XML::Node * in_repr, Inkscape::Extension::Extension * in_ext)
{
const char * name;
const char * type;
const char * guitext;
const char * desc;
const char * scope_str;
Parameter::_scope_t scope = Parameter::SCOPE_USER;
bool gui_hidden = false;
const char * gui_hide;
const char * gui_tip;
name = in_repr->attribute("name");
type = in_repr->attribute("type");
guitext = in_repr->attribute("gui-text");
if (guitext == NULL)
guitext = in_repr->attribute("_gui-text");
gui_tip = in_repr->attribute("gui-tip");
if (gui_tip == NULL)
gui_tip = in_repr->attribute("_gui-tip");
desc = in_repr->attribute("gui-description");
if (desc == NULL)
desc = in_repr->attribute("_gui-description");
scope_str = in_repr->attribute("scope");
gui_hide = in_repr->attribute("gui-hidden");
if (gui_hide != NULL) {
if (strcmp(gui_hide, "1") == 0 ||
strcmp(gui_hide, "true") == 0) {
gui_hidden = true;
}
/* else stays false */
}
const gchar* appearance = in_repr->attribute("appearance");
/* In this case we just don't have enough information */
if (name == NULL || type == NULL) {
return NULL;
}
if (scope_str != NULL) {
if (!strcmp(scope_str, "user")) {
scope = Parameter::SCOPE_USER;
} else if (!strcmp(scope_str, "document")) {
scope = Parameter::SCOPE_DOCUMENT;
} else if (!strcmp(scope_str, "node")) {
scope = Parameter::SCOPE_NODE;
}
}
Parameter * param = NULL;
if (!strcmp(type, "boolean")) {
param = new ParamBool(name, guitext, desc, scope, gui_hidden, gui_tip, in_ext, in_repr);
} else if (!strcmp(type, "int")) {
if (appearance && !strcmp(appearance, "full")) {
param = new ParamInt(name, guitext, desc, scope, gui_hidden, gui_tip, in_ext, in_repr, ParamInt::FULL);
} else {
param = new ParamInt(name, guitext, desc, scope, gui_hidden, gui_tip, in_ext, in_repr, ParamInt::MINIMAL);
}
} else if (!strcmp(type, "float")) {
if (appearance && !strcmp(appearance, "full")) {
param = new ParamFloat(name, guitext, desc, scope, gui_hidden, gui_tip, in_ext, in_repr, ParamFloat::FULL);
} else {
param = new ParamFloat(name, guitext, desc, scope, gui_hidden, gui_tip, in_ext, in_repr, ParamFloat::MINIMAL);
}
} else if (!strcmp(type, "string")) {
param = new ParamString(name, guitext, desc, scope, gui_hidden, gui_tip, in_ext, in_repr);
const gchar * max_length = in_repr->attribute("max_length");
if (max_length != NULL) {
ParamString * ps = dynamic_cast<ParamString *>(param);
ps->setMaxLength(atoi(max_length));
}
} else if (!strcmp(type, "description")) {
if (appearance && !strcmp(appearance, "header")) {
param = new ParamDescription(name, guitext, desc, scope, gui_hidden, gui_tip, in_ext, in_repr, ParamDescription::HEADER);
} else {
param = new ParamDescription(name, guitext, desc, scope, gui_hidden, gui_tip, in_ext, in_repr, ParamDescription::DESC);
}
} else if (!strcmp(type, "enum")) {
param = new ParamComboBox(name, guitext, desc, scope, gui_hidden, gui_tip, in_ext, in_repr);
} else if (!strcmp(type, "notebook")) {
param = new ParamNotebook(name, guitext, desc, scope, gui_hidden, gui_tip, in_ext, in_repr);
} else if (!strcmp(type, "optiongroup")) {
if (appearance && !strcmp(appearance, "minimal")) {
param = new ParamRadioButton(name, guitext, desc, scope, gui_hidden, gui_tip, in_ext, in_repr, ParamRadioButton::MINIMAL);
} else {
param = new ParamRadioButton(name, guitext, desc, scope, gui_hidden, gui_tip, in_ext, in_repr, ParamRadioButton::FULL);
}
} else if (!strcmp(type, "color")) {
param = new ParamColor(name, guitext, desc, scope, gui_hidden, gui_tip, in_ext, in_repr);
}
/* Note: param could equal NULL */
return param;
}
/** \brief Wrapper to cast to the object and use it's function. */
bool
Parameter::get_bool (const SPDocument * doc, const Inkscape::XML::Node * node)
{
ParamBool * boolpntr = dynamic_cast<ParamBool *>(this);
if (boolpntr == NULL)
throw Extension::param_not_bool_param();
return boolpntr->get(doc, node);
}
/** \brief Wrapper to cast to the object and use it's function. */
int
Parameter::get_int (const SPDocument * doc, const Inkscape::XML::Node * node)
{
ParamInt * intpntr = dynamic_cast<ParamInt *>(this);
if (intpntr == NULL)
throw Extension::param_not_int_param();
return intpntr->get(doc, node);
}
/** \brief Wrapper to cast to the object and use it's function. */
float
Parameter::get_float (const SPDocument * doc, const Inkscape::XML::Node * node)
{
ParamFloat * floatpntr = dynamic_cast<ParamFloat *>(this);
if (floatpntr == NULL)
throw Extension::param_not_float_param();
return floatpntr->get(doc, node);
}
/** \brief Wrapper to cast to the object and use it's function. */
const gchar *
Parameter::get_string (const SPDocument * doc, const Inkscape::XML::Node * node)
{
ParamString * stringpntr = dynamic_cast<ParamString *>(this);
if (stringpntr == NULL)
throw Extension::param_not_string_param();
return stringpntr->get(doc, node);
}
/** \brief Wrapper to cast to the object and use it's function. */
const gchar *
Parameter::get_enum (const SPDocument * doc, const Inkscape::XML::Node * node)
{
ParamComboBox * param = dynamic_cast<ParamComboBox *>(this);
if (param == NULL)
throw Extension::param_not_enum_param();
return param->get(doc, node);
}
/** \brief Wrapper to cast to the object and use it's function. */
gchar const *Parameter::get_optiongroup(SPDocument const * doc, Inkscape::XML::Node const * node)
{
ParamRadioButton * param = dynamic_cast<ParamRadioButton *>(this);
if (!param) {
throw Extension::param_not_optiongroup_param();
}
return param->get(doc, node);
}
guint32
Parameter::get_color(const SPDocument* doc, const Inkscape::XML::Node* node)
{
ParamColor* param = dynamic_cast<ParamColor *>(this);
if (param == NULL)
throw Extension::param_not_color_param();
return param->get(doc, node);
}
/** \brief Wrapper to cast to the object and use it's function. */
bool
Parameter::set_bool (bool in, SPDocument * doc, Inkscape::XML::Node * node)
{
ParamBool * boolpntr = dynamic_cast<ParamBool *>(this);
if (boolpntr == NULL)
throw Extension::param_not_bool_param();
return boolpntr->set(in, doc, node);
}
/** \brief Wrapper to cast to the object and use it's function. */
int
Parameter::set_int (int in, SPDocument * doc, Inkscape::XML::Node * node)
{
ParamInt * intpntr = dynamic_cast<ParamInt *>(this);
if (intpntr == NULL)
throw Extension::param_not_int_param();
return intpntr->set(in, doc, node);
}
/** \brief Wrapper to cast to the object and use it's function. */
float
Parameter::set_float (float in, SPDocument * doc, Inkscape::XML::Node * node)
{
ParamFloat * floatpntr;
floatpntr = dynamic_cast<ParamFloat *>(this);
if (floatpntr == NULL)
throw Extension::param_not_float_param();
return floatpntr->set(in, doc, node);
}
/** \brief Wrapper to cast to the object and use it's function. */
const gchar *
Parameter::set_string (const gchar * in, SPDocument * doc, Inkscape::XML::Node * node)
{
ParamString * stringpntr = dynamic_cast<ParamString *>(this);
if (stringpntr == NULL)
throw Extension::param_not_string_param();
return stringpntr->set(in, doc, node);
}
gchar const * Parameter::set_optiongroup( gchar const * in, SPDocument * doc, Inkscape::XML::Node * node )
{
ParamRadioButton *param = dynamic_cast<ParamRadioButton *>(this);
if (!param) {
throw Extension::param_not_optiongroup_param();
}
return param->set(in, doc, node);
}
/** \brief Wrapper to cast to the object and use it's function. */
guint32
Parameter::set_color (guint32 in, SPDocument * doc, Inkscape::XML::Node * node)
{
ParamColor* param = dynamic_cast<ParamColor *>(this);
if (param == NULL)
throw Extension::param_not_color_param();
return param->set(in, doc, node);
}
/** \brief Oop, now that we need a parameter, we need it's name. */
Parameter::Parameter (const gchar * name, const gchar * guitext, const gchar * desc, const Parameter::_scope_t scope, bool gui_hidden, const gchar * gui_tip, Inkscape::Extension::Extension * ext) :
extension(ext), _name(NULL), _desc(NULL), _scope(scope), _text(NULL), _gui_hidden(gui_hidden), _gui_tip(NULL)
{
if (name != NULL) {
_name = g_strdup(name);
}
if (desc != NULL) {
_desc = g_strdup(desc);
// printf("Adding description: '%s' on '%s'\n", _desc, _name);
}
if (gui_tip != NULL) {
_gui_tip = g_strdup(gui_tip);
}
if (guitext != NULL)
_text = g_strdup(guitext);
else
_text = g_strdup(name);
return;
}
/** \brief Just free the allocated name. */
Parameter::~Parameter (void)
{
g_free(_name);
g_free(_text);
g_free(_gui_tip);
g_free(_desc);
}
/** \brief Build the name to write the parameter from the extension's
ID and the name of this parameter. */
gchar *
Parameter::pref_name (void)
{
return g_strdup_printf("%s.%s", extension->get_id(), _name);
}
Inkscape::XML::Node *
Parameter::find_child (Inkscape::XML::Node * adult)
{
return sp_repr_lookup_child(adult, "name", _name);
}
Inkscape::XML::Node *
Parameter::new_child (Inkscape::XML::Node * parent)
{
Inkscape::XML::Node * retval;
retval = parent->document()->createElement("inkscape:extension-param");
retval->setAttribute("name", _name);
parent->appendChild(retval);
Inkscape::GC::release(retval);
return retval;
}
Inkscape::XML::Node *Parameter::document_param_node(SPDocument * doc)
{
Inkscape::XML::Document *xml_doc = doc->getReprDoc();
Inkscape::XML::Node * defs = doc->getDefs()->getRepr();
Inkscape::XML::Node * params = NULL;
GQuark const name_quark = g_quark_from_string("inkscape:extension-params");
for (Inkscape::XML::Node * child = defs->firstChild();
child != NULL;
child = child->next()) {
if ((GQuark)child->code() == name_quark &&
!strcmp(child->attribute("extension"), extension->get_id())) {
params = child;
break;
}
}
if (params == NULL) {
params = xml_doc->createElement("inkscape:extension-param");
params->setAttribute("extension", extension->get_id());
defs->appendChild(params);
Inkscape::GC::release(params);
}
return params;
}
/** \brief Basically, if there is no widget pass a NULL. */
Gtk::Widget *
Parameter::get_widget (SPDocument * /*doc*/, Inkscape::XML::Node * /*node*/, sigc::signal<void> * /*changeSignal*/)
{
return NULL;
}
/** \brief If I'm not sure which it is, just don't return a value. */
void
Parameter::string (std::string &/*string*/)
{
return;
}
void
Parameter::string (std::list <std::string> &list)
{
std::string value;
string(value);
if (value == "") {
return;
}
std::string final;
final += "--";
final += name();
final += "=";
final += value;
list.insert(list.end(), final);
return;
}
/** All the code in Notebook::get_param to get the notebook content. */
Parameter *Parameter::get_param(const gchar * /*name*/)
{
return NULL;
}
Glib::ustring const extension_pref_root = "/extensions/";
} /* namespace Extension */
} /* namespace Inkscape */
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :