r16217@tres: ted | 2007-08-10 10:36:27 -0700

 ImageMagick effects patch from Chris Brown.  Google Summer of Code 
 project.

(bzr r3450)

1 files changed, 54 insertions, 654 deletions

diff --git a/src/extension/parameter.cpp b/src/extension/parameter.cpp
index f59a5cc3d..52c67267f 100644
--- a/src/extension/parameter.cpp
+++ b/src/extension/parameter.cpp
@@ -24,195 +24,29 @@
 #include <gtkmm/box.h>
 #include <gtkmm/spinbutton.h>
 
-#include <glibmm/i18n.h>
-
 #include <xml/node.h>
 
 #include "extension.h"
-#include "prefs-utils.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 "paramnotebook.h"
+#include "parambool.h"
+#include "paramcolor.h"
+#include "paramdescription.h"
 #include "paramenum.h"
+#include "paramfloat.h"
+#include "paramint.h"
+#include "paramnotebook.h"
 #include "paramradiobutton.h"
-
-/** \brief  The root directory in the preferences database for extension
-            related parameters. */
-#define PREF_DIR "extensions"
+#include "paramstring.h"
 
 namespace Inkscape {
 namespace Extension {
 
-/** \brief  A description parameter */
-class ParamDescription : public Parameter {
-private:
-    /** \brief  Internal value. */
-    gchar * _value;
-public:
-    ParamDescription(const gchar * name, const gchar * guitext, const gchar * desc, const Parameter::_scope_t scope, Inkscape::Extension::Extension * ext, Inkscape::XML::Node * xml);
-    Gtk::Widget * get_widget(SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal);
-};
-
-/** \brief  A boolean parameter */
-class ParamBool : public Parameter {
-private:
-    /** \brief  Internal value. */
-    bool _value;
-public:
-    ParamBool(const gchar * name, const gchar * guitext, const gchar * desc, const Parameter::_scope_t scope, Inkscape::Extension::Extension * ext, Inkscape::XML::Node * xml);
-    /** \brief  Returns \c _value */
-    bool get (const SPDocument * doc, const Inkscape::XML::Node * node) { return _value; }
-    bool set (bool in, SPDocument * doc, Inkscape::XML::Node * node);
-    Gtk::Widget * get_widget(SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal);
-    Glib::ustring * string (void);
-};
-
-/** \brief  Use the superclass' allocator and set the \c _value */
-ParamBool::ParamBool (const gchar * name, const gchar * guitext, const gchar * desc, const Parameter::_scope_t scope, Inkscape::Extension::Extension * ext, Inkscape::XML::Node * xml) :
-        Parameter(name, guitext, desc, scope, ext), _value(false)
-{
-    const char * defaultval = NULL;
-    if (sp_repr_children(xml) != NULL)
-        defaultval = sp_repr_children(xml)->content();
-
-    if (defaultval != NULL && (!strcmp(defaultval, "TRUE") || !strcmp(defaultval, "true") || !strcmp(defaultval, "1"))) {
-        _value = true;
-    } else {
-        _value = false;
-    }
-
-    gchar * pref_name = this->pref_name();
-    _value = (bool)prefs_get_int_attribute(PREF_DIR, pref_name, _value);
-    g_free(pref_name);
-
-    return;
-}
-
-class ParamInt : public Parameter {
-private:
-    /** \brief  Internal value. */
-    int _value;
-    int _min;
-    int _max;
-public:
-    ParamInt (const gchar * name, const gchar * guitext, const gchar * desc, const Parameter::_scope_t scope, Inkscape::Extension::Extension * ext, Inkscape::XML::Node * xml);
-    /** \brief  Returns \c _value */
-    int get (const SPDocument * doc, const Inkscape::XML::Node * node) { return _value; }
-    int set (int in, SPDocument * doc, Inkscape::XML::Node * node);
-    int max (void) { return _max; }
-    int min (void) { return _min; }
-    Gtk::Widget * get_widget(SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal);
-    Glib::ustring * string (void);
-};
-
-/** \brief  Use the superclass' allocator and set the \c _value */
-ParamInt::ParamInt (const gchar * name, const gchar * guitext, const gchar * desc, const Parameter::_scope_t scope, Inkscape::Extension::Extension * ext, Inkscape::XML::Node * xml) :
-        Parameter(name, guitext, desc, scope, ext), _value(0), _min(0), _max(10)
-{
-    const char * defaultval = NULL;
-    if (sp_repr_children(xml) != NULL)
-        defaultval = sp_repr_children(xml)->content();
-    if (defaultval != NULL) {
-        _value = atoi(defaultval);
-    }
-
-    const char * maxval = xml->attribute("max");
-    if (maxval != NULL)
-        _max = atoi(maxval);
-
-    const char * minval = xml->attribute("min");
-    if (minval != NULL)
-        _min = atoi(minval);
-
-    /* We're handling this by just killing both values */
-    if (_max < _min) {
-        _max = 10;
-        _min = 0;
-    }
-
-    gchar * pref_name = this->pref_name();
-    _value = prefs_get_int_attribute(PREF_DIR, pref_name, _value);
-    g_free(pref_name);
-
-    // std::cout << "New Int::  value: " << _value << "  max: " << _max << "  min: " << _min << std::endl;
-
-    if (_value > _max) _value = _max;
-    if (_value < _min) _value = _min;
-
-    return;
-}
-
-class ParamFloat : public Parameter {
-private:
-    /** \brief  Internal value. */
-    float _value;
-    float _min;
-    float _max;
-public:
-    ParamFloat (const gchar * name, const gchar * guitext, const gchar * desc, const Parameter::_scope_t scope, Inkscape::Extension::Extension * ext, Inkscape::XML::Node * xml);
-    /** \brief  Returns \c _value */
-    float get (const SPDocument * doc, const Inkscape::XML::Node * node) { return _value; }
-    float set (float in, SPDocument * doc, Inkscape::XML::Node * node);
-    float max (void) { return _max; }
-    float min (void) { return _min; }
-    Gtk::Widget * get_widget(SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal);
-    Glib::ustring * string (void);
-};
-
-/** \brief  Use the superclass' allocator and set the \c _value */
-ParamFloat::ParamFloat (const gchar * name, const gchar * guitext, const gchar * desc, const Parameter::_scope_t scope, Inkscape::Extension::Extension * ext, Inkscape::XML::Node * xml) :
-        Parameter(name, guitext, desc, scope, ext), _value(0.0), _min(0.0), _max(10.0)
-{
-    const char * defaultval = NULL;
-    if (sp_repr_children(xml) != NULL)
-        defaultval = sp_repr_children(xml)->content();
-    if (defaultval != NULL) {
-        _value = atof(defaultval);
-    }
-
-    const char * maxval = xml->attribute("max");
-    if (maxval != NULL)
-        _max = atof(maxval);
-
-    const char * minval = xml->attribute("min");
-    if (minval != NULL)
-        _min = atof(minval);
-
-    /* We're handling this by just killing both values */
-    if (_max < _min) {
-        _max = 10.0;
-        _min = 0.0;
-    }
-
-    gchar * pref_name = this->pref_name();
-    _value = prefs_get_double_attribute(PREF_DIR, pref_name, _value);
-    g_free(pref_name);
-
-    // std::cout << "New Float::  value: " << _value << "  max: " << _max << "  min: " << _min << std::endl;
-
-    if (_value > _max) _value = _max;
-    if (_value < _min) _value = _min;
-
-    return;
-}
-
-class ParamString : public Parameter {
-private:
-    /** \brief  Internal value.  This should point to a string that has
-                been allocated in memory.  And should be free'd. */
-    gchar * _value;
-public:
-    ParamString(const gchar * name, const gchar * guitext, const gchar * desc, const Parameter::_scope_t scope, Inkscape::Extension::Extension * ext, Inkscape::XML::Node * xml);
-    ~ParamString(void);
-    /** \brief  Returns \c _value, with a \i const to protect it. */
-    const gchar * get (const SPDocument * doc, const Inkscape::XML::Node * node) { return _value; }
-    const gchar * set (const gchar * in, SPDocument * doc, Inkscape::XML::Node * node);
-    Gtk::Widget * get_widget(SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal);
-    Glib::ustring * string (void);
-};
-
 class ParamEnum : public Parameter {
 private:
     class Choice {
@@ -245,8 +79,7 @@ public:
     Gtk::Widget * get_widget(SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal);
     Glib::ustring * string (void);
 }; /* class ParamEnum */
-
-
+     
 /**
     \return None
     \brief  This function creates a parameter that can be used later.  This
@@ -322,116 +155,23 @@ Parameter::make (Inkscape::XML::Node * in_repr, Inkscape::Extension::Extension *
         param = new ParamNotebook(name, guitext, desc, scope, in_ext, in_repr);
     } else if (!strcmp(type, "optiongroup")) {
         param = new ParamRadioButton(name, guitext, desc, scope, in_ext, in_repr);
+    } else if (!strcmp(type, "color")) {
+        param = new ParamColor(name, guitext, desc, scope, in_ext, in_repr);
     }
 
     /* Note: param could equal NULL */
     return param;
 }
 
-/** \brief  A function to set the \c _value
-    \param  in   The value to set to
-    \param  doc  A document that should be used to set the value.
-    \param  node The node where the value may be placed
-
-    This function sets the internal value, but it also sets the value
-    in the preferences structure.  To put it in the right place, \c PREF_DIR
-    and \c pref_name() are used.
-*/
-bool
-ParamBool::set (bool in, SPDocument * doc, Inkscape::XML::Node * node)
-{
-    _value = in;
-
-    gchar * prefname = this->pref_name();
-    prefs_set_int_attribute(PREF_DIR, prefname, _value == true ? 1 : 0);
-    g_free(prefname);
-
-    return _value;
-}
-
-/** \brief  A function to set the \c _value
-    \param  in   The value to set to
-    \param  doc  A document that should be used to set the value.
-    \param  node The node where the value may be placed
-
-    This function sets the internal value, but it also sets the value
-    in the preferences structure.  To put it in the right place, \c PREF_DIR
-    and \c pref_name() are used.
-*/
-int
-ParamInt::set (int in, SPDocument * doc, Inkscape::XML::Node * node)
-{
-    _value = in;
-    if (_value > _max) _value = _max;
-    if (_value < _min) _value = _min;
-
-    gchar * prefname = this->pref_name();
-    prefs_set_int_attribute(PREF_DIR, prefname, _value);
-    g_free(prefname);
-
-    return _value;
-}
-
-/** \brief  A function to set the \c _value
-    \param  in   The value to set to
-    \param  doc  A document that should be used to set the value.
-    \param  node The node where the value may be placed
-
-    This function sets the internal value, but it also sets the value
-    in the preferences structure.  To put it in the right place, \c PREF_DIR
-    and \c pref_name() are used.
-*/
-float
-ParamFloat::set (float in, SPDocument * doc, Inkscape::XML::Node * node)
-{
-    _value = in;
-    if (_value > _max) _value = _max;
-    if (_value < _min) _value = _min;
-
-    gchar * prefname = this->pref_name();
-    prefs_set_double_attribute(PREF_DIR, prefname, _value);
-    g_free(prefname);
-
-    return _value;
-}
-
-/** \brief  A function to set the \c _value
-    \param  in   The value to set to
-    \param  doc  A document that should be used to set the value.
-    \param  node The node where the value may be placed
-
-    This function sets the internal value, but it also sets the value
-    in the preferences structure.  To put it in the right place, \c PREF_DIR
-    and \c pref_name() are used.
-
-    To copy the data into _value the old memory must be free'd first.
-    It is important to note that \c g_free handles \c NULL just fine.  Then
-    the passed in value is duplicated using \c g_strdup().
-*/
-const gchar *
-ParamString::set (const gchar * in, SPDocument * doc, Inkscape::XML::Node * node)
-{
-    if (in == NULL) return NULL; /* Can't have NULL string */
 
-    if (_value != NULL)
-        g_free(_value);
-    _value = g_strdup(in);
-
-    gchar * prefname = this->pref_name();
-    prefs_set_string_attribute(PREF_DIR, prefname, _value);
-    g_free(prefname);
-
-    return _value;
-}
 
 /** \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;
-    boolpntr = dynamic_cast<ParamBool *>(this);
+    ParamBool * boolpntr = dynamic_cast<ParamBool *>(this);    
     if (boolpntr == NULL)
-        throw Extension::param_wrong_type();
+        throw Extension::param_not_bool_param();
     return boolpntr->get(doc, node);
 }
 
@@ -439,10 +179,9 @@ Parameter::get_bool (const SPDocument * doc, const Inkscape::XML::Node * node)
 int
 Parameter::get_int (const SPDocument * doc, const Inkscape::XML::Node * node)
 {
-    ParamInt * intpntr;
-    intpntr = dynamic_cast<ParamInt *>(this);
+    ParamInt * intpntr = dynamic_cast<ParamInt *>(this);    
     if (intpntr == NULL)
-        throw Extension::param_wrong_type();
+        throw Extension::param_not_int_param();
     return intpntr->get(doc, node);
 }
 
@@ -450,10 +189,9 @@ Parameter::get_int (const SPDocument * doc, const Inkscape::XML::Node * node)
 float
 Parameter::get_float (const SPDocument * doc, const Inkscape::XML::Node * node)
 {
-    ParamFloat * floatpntr;
-    floatpntr = dynamic_cast<ParamFloat *>(this);
+    ParamFloat * floatpntr = dynamic_cast<ParamFloat *>(this);    
     if (floatpntr == NULL)
-        throw Extension::param_wrong_type();
+        throw Extension::param_not_float_param();
     return floatpntr->get(doc, node);
 }
 
@@ -461,21 +199,38 @@ Parameter::get_float (const SPDocument * doc, const Inkscape::XML::Node * node)
 const gchar *
 Parameter::get_string (const SPDocument * doc, const Inkscape::XML::Node * node)
 {
-    ParamString * stringpntr;
-    stringpntr = dynamic_cast<ParamString *>(this);
+    ParamString * stringpntr = dynamic_cast<ParamString *>(this);
     if (stringpntr == NULL)
-        throw Extension::param_wrong_type();
+        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);
+}
+
+SPColor*
+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;
-    boolpntr = dynamic_cast<ParamBool *>(this);
+    ParamBool * boolpntr = dynamic_cast<ParamBool *>(this);
     if (boolpntr == NULL)
-        throw Extension::param_wrong_type();
+        throw Extension::param_not_bool_param();
     return boolpntr->set(in, doc, node);
 }
 
@@ -483,10 +238,9 @@ Parameter::set_bool (bool in, SPDocument * doc, Inkscape::XML::Node * node)
 int
 Parameter::set_int (int in, SPDocument * doc, Inkscape::XML::Node * node)
 {
-    ParamInt * intpntr;
-    intpntr = dynamic_cast<ParamInt *>(this);
+    ParamInt * intpntr = dynamic_cast<ParamInt *>(this);    
     if (intpntr == NULL)
-        throw Extension::param_wrong_type();
+        throw Extension::param_not_int_param();
     return intpntr->set(in, doc, node);
 }
 
@@ -497,7 +251,7 @@ Parameter::set_float (float in, SPDocument * doc, Inkscape::XML::Node * node)
     ParamFloat * floatpntr;
     floatpntr = dynamic_cast<ParamFloat *>(this);
     if (floatpntr == NULL)
-        throw Extension::param_wrong_type();
+        throw Extension::param_not_float_param();
     return floatpntr->set(in, doc, node);
 }
 
@@ -505,38 +259,21 @@ Parameter::set_float (float in, SPDocument * doc, Inkscape::XML::Node * node)
 const gchar *
 Parameter::set_string (const gchar * in, SPDocument * doc, Inkscape::XML::Node * node)
 {
-    ParamString * stringpntr;
-    stringpntr = dynamic_cast<ParamString *>(this);
+    ParamString * stringpntr = dynamic_cast<ParamString *>(this);    
     if (stringpntr == NULL)
-        throw Extension::param_wrong_type();
+        throw Extension::param_not_string_param();
     return stringpntr->set(in, doc, node);
 }
-
-/** \brief  Initialize the object, to do that, copy the data. */
-ParamString::ParamString (const gchar * name, const gchar * guitext, const gchar * desc, const Parameter::_scope_t scope, Inkscape::Extension::Extension * ext, Inkscape::XML::Node * xml) :
-    Parameter(name, guitext, desc, scope, ext), _value(NULL)
+/** \brief  Wrapper to cast to the object and use it's function.  */
+SPColor*
+Parameter::set_color (SPColor* in, SPDocument * doc, Inkscape::XML::Node * node)
 {
-    const char * defaultval = NULL;
-    if (sp_repr_children(xml) != NULL)
-        defaultval = sp_repr_children(xml)->content();
-
-    gchar * pref_name = this->pref_name();
-    const gchar * paramval = prefs_get_string_attribute(PREF_DIR, pref_name);
-    g_free(pref_name);
-
-    if (paramval != NULL)
-        defaultval = paramval;
-    if (defaultval != NULL)
-        _value = g_strdup(defaultval);
-
-    return;
+    ParamColor* param = dynamic_cast<ParamColor *>(this);
+    if (param == NULL)
+        throw Extension::param_not_color_param();
+    return param->set(in, doc, node);
 }
 
-/** \brief  Free the allocated data. */
-ParamString::~ParamString(void)
-{
-    g_free(_value);
-}
 
 /** \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, Inkscape::Extension::Extension * ext) :
@@ -633,346 +370,9 @@ Parameter::string (void)
     return mystring;
 }
 
-/** \brief  A class to make an adjustment that uses Extension params */
-class ParamFloatAdjustment : public Gtk::Adjustment {
-    /** The parameter to adjust */
-    ParamFloat * _pref;
-    SPDocument * _doc;
-    Inkscape::XML::Node * _node;
-    sigc::signal<void> * _changeSignal;
-public:
-    /** \brief  Make the adjustment using an extension and the string
-                describing the parameter. */
-    ParamFloatAdjustment (ParamFloat * param, SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal) :
-            Gtk::Adjustment(0.0, param->min(), param->max(), 0.1), _pref(param), _doc(doc), _node(node), _changeSignal(changeSignal) {
-        this->set_value(_pref->get(NULL, NULL) /* \todo fix */);
-        this->signal_value_changed().connect(sigc::mem_fun(this, &ParamFloatAdjustment::val_changed));
-        return;
-    };
-
-    void val_changed (void);
-}; /* class ParamFloatAdjustment */
-
-/** \brief  A function to respond to the value_changed signal from the
-            adjustment.
-
-    This function just grabs the value from the adjustment and writes
-    it to the parameter.  Very simple, but yet beautiful.
-*/
-void
-ParamFloatAdjustment::val_changed (void)
-{
-    //std::cout << "Value Changed to: " << this->get_value() << std::endl;
-    _pref->set(this->get_value(), _doc, _node);
-    if (_changeSignal != NULL) {
-        _changeSignal->emit();
-    }
-    return;
-}
-
-/** \brief  A class to make an adjustment that uses Extension params */
-class ParamIntAdjustment : public Gtk::Adjustment {
-    /** The parameter to adjust */
-    ParamInt * _pref;
-    SPDocument * _doc;
-    Inkscape::XML::Node * _node;
-    sigc::signal<void> * _changeSignal;
-public:
-    /** \brief  Make the adjustment using an extension and the string
-                describing the parameter. */
-    ParamIntAdjustment (ParamInt * param, SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal) :
-            Gtk::Adjustment(0.0, param->min(), param->max(), 1.0), _pref(param), _doc(doc), _node(node), _changeSignal(changeSignal) {
-        this->set_value(_pref->get(NULL, NULL) /* \todo fix */);
-        this->signal_value_changed().connect(sigc::mem_fun(this, &ParamIntAdjustment::val_changed));
-        return;
-    };
-
-    void val_changed (void);
-}; /* class ParamIntAdjustment */
-
-/** \brief  A function to respond to the value_changed signal from the
-            adjustment.
-
-    This function just grabs the value from the adjustment and writes
-    it to the parameter.  Very simple, but yet beautiful.
-*/
-void
-ParamIntAdjustment::val_changed (void)
-{
-    //std::cout << "Value Changed to: " << this->get_value() << std::endl;
-    _pref->set((int)this->get_value(), _doc, _node);
-    if (_changeSignal != NULL) {
-        _changeSignal->emit();
-    }
-    return;
-}
-
-/**
-    \brief  Creates a Float Adjustment for a float parameter
-
-    Builds a hbox with a label and a float adjustment in it.
-*/
-Gtk::Widget *
-ParamFloat::get_widget (SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal)
-{
-    Gtk::HBox * hbox = Gtk::manage(new Gtk::HBox(false, 4));
-
-    Gtk::Label * label = Gtk::manage(new Gtk::Label(_(_text), Gtk::ALIGN_LEFT));
-    label->show();
-    hbox->pack_start(*label, true, true);
-
-    ParamFloatAdjustment * fadjust = Gtk::manage(new ParamFloatAdjustment(this, doc, node, changeSignal));
-    Gtk::SpinButton * spin = Gtk::manage(new Gtk::SpinButton(*fadjust, 0.1, 1));
-    spin->show();
-    hbox->pack_start(*spin, false, false);
-
-    hbox->show();
-
-    return dynamic_cast<Gtk::Widget *>(hbox);
-}
-
-/**
-    \brief  Creates a Int Adjustment for a int parameter
-
-    Builds a hbox with a label and a int adjustment in it.
-*/
-Gtk::Widget *
-ParamInt::get_widget (SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal)
-{
-    Gtk::HBox * hbox = Gtk::manage(new Gtk::HBox(false, 4));
 
-    Gtk::Label * label = Gtk::manage(new Gtk::Label(_(_text), Gtk::ALIGN_LEFT));
-    label->show();
-    hbox->pack_start(*label, true, true);
 
-    ParamIntAdjustment * fadjust = Gtk::manage(new ParamIntAdjustment(this, doc, node, changeSignal));
-    Gtk::SpinButton * spin = Gtk::manage(new Gtk::SpinButton(*fadjust, 1.0, 0));
-    spin->show();
-    hbox->pack_start(*spin, false, false);
 
-    hbox->show();
-
-    return dynamic_cast<Gtk::Widget *>(hbox);
-}
-
-/** \brief  A check button which is Param aware.  It works with the
-            parameter to change it's value as the check button changes
-            value. */
-class ParamBoolCheckButton : public Gtk::CheckButton {
-private:
-    /** \brief  Param to change */
-    ParamBool * _pref;
-    SPDocument * _doc;
-    Inkscape::XML::Node * _node;
-    sigc::signal<void> * _changeSignal;
-public:
-    /** \brief  Initialize the check button
-        \param  param  Which parameter to adjust on changing the check button
-
-        This function sets the value of the checkbox to be that of the
-        parameter, and then sets up a callback to \c on_toggle.
-    */
-    ParamBoolCheckButton (ParamBool * param, SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal) :
-            Gtk::CheckButton(), _pref(param), _doc(doc), _node(node), _changeSignal(changeSignal) {
-        this->set_active(_pref->get(NULL, NULL) /**\todo fix */);
-        this->signal_toggled().connect(sigc::mem_fun(this, &ParamBoolCheckButton::on_toggle));
-        return;
-    }
-    void on_toggle (void);
-};
-
-/**
-    \brief  A function to respond to the check box changing
-
-    Adjusts the value of the preference to match that in the check box.
-*/
-void
-ParamBoolCheckButton::on_toggle (void)
-{
-    _pref->set(this->get_active(), NULL /**\todo fix this */, NULL);
-    if (_changeSignal != NULL) {
-        _changeSignal->emit();
-    }
-    return;
-}
-
-/**
-    \brief  Creates a bool check button for a bool parameter
-
-    Builds a hbox with a label and a check button in it.
-*/
-Gtk::Widget *
-ParamBool::get_widget (SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal)
-{
-    Gtk::HBox * hbox = Gtk::manage(new Gtk::HBox(false, 4));
-
-    Gtk::Label * label = Gtk::manage(new Gtk::Label(_(_text), Gtk::ALIGN_LEFT));
-    label->show();
-    hbox->pack_start(*label, true, true);
-
-    ParamBoolCheckButton * checkbox = new ParamBoolCheckButton(this, doc, node, changeSignal);
-    checkbox->show();
-    hbox->pack_start(*checkbox, false, false);
-
-    hbox->show();
-
-    return dynamic_cast<Gtk::Widget *>(hbox);
-}
-
-/** \brief  A special category of Gtk::Entry to handle string parameteres */
-class ParamStringEntry : public Gtk::Entry {
-private:
-    ParamString * _pref;
-    SPDocument * _doc;
-    Inkscape::XML::Node * _node;
-    sigc::signal<void> * _changeSignal;
-public:
-    /** \brief  Build a string preference for the given parameter
-        \param  pref  Where to get the string from, and where to put it
-                      when it changes.
-    */
-    ParamStringEntry (ParamString * pref, SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal) :
-        Gtk::Entry(), _pref(pref), _doc(doc), _node(node), _changeSignal(changeSignal) {
-        if (_pref->get(NULL, NULL) != NULL)
-            this->set_text(Glib::ustring(_pref->get(NULL, NULL)));
-        this->signal_changed().connect(sigc::mem_fun(this, &ParamStringEntry::changed_text));
-    };
-    void changed_text (void);
-};
-
-/** \brief  Respond to the text box changing
-
-    This function responds to the box changing by grabbing the value
-    from the text box and putting it in the parameter.
-*/
-void
-ParamStringEntry::changed_text (void)
-{
-    Glib::ustring data = this->get_text();
-    _pref->set(data.c_str(), _doc, _node);
-    if (_changeSignal != NULL) {
-        _changeSignal->emit();
-    }
-    return;
-}
-
-/**
-    \brief  Creates a text box for the string parameter
-
-    Builds a hbox with a label and a text box in it.
-*/
-Gtk::Widget *
-ParamString::get_widget (SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal)
-{
-    Gtk::HBox * hbox = Gtk::manage(new Gtk::HBox(false, 4));
-
-    Gtk::Label * label = Gtk::manage(new Gtk::Label(_(_text), Gtk::ALIGN_LEFT));
-    label->show();
-    hbox->pack_start(*label, false, false);
-
-    ParamStringEntry * textbox = new ParamStringEntry(this, doc, node, changeSignal);
-    textbox->show();
-    hbox->pack_start(*textbox, true, true);
-
-    hbox->show();
-
-    return dynamic_cast<Gtk::Widget *>(hbox);
-}
-
-/** \brief  Return 'true' or 'false' */
-Glib::ustring *
-ParamBool::string (void)
-{
-    Glib::ustring * mystring;
-
-    if (_value)
-        mystring = new Glib::ustring("true");
-    else
-        mystring = new Glib::ustring("false");
-
-    return mystring;
-}
-
-/** \brief  Return the value as a string */
-Glib::ustring *
-ParamInt::string (void)
-{
-    char startstring[32];
-    sprintf(startstring, "%d", _value);
-    Glib::ustring * mystring = new Glib::ustring(startstring);
-    return mystring;
-}
-
-/** \brief  Return the value as a string */
-Glib::ustring *
-ParamFloat::string (void)
-{
-    char startstring[G_ASCII_DTOSTR_BUF_SIZE];
-    g_ascii_dtostr(startstring, G_ASCII_DTOSTR_BUF_SIZE, _value);
-    Glib::ustring * mystring = new Glib::ustring(startstring);
-    return mystring;
-}
-
-/** \brief  Return the value as a string */
-Glib::ustring *
-ParamString::string (void)
-{
-    if (_value == NULL)
-        return new Glib::ustring("");
-
-    // FIXME: I think the string should NOT be escaped. Just put between "..."
-    // Otherwise \frac{1}{2} will become \\frac{1}{2} and then the LaTeX effect won't work....
-    //gchar * esc = g_strescape(_value, NULL);
-    Glib::ustring escaped(_value);
-    //g_free(esc);
-    
-#ifdef ESCAPE_DOLLAR_COMMANDLINE // escape the dollar sign 
-    Glib::ustring::iterator i;
-    for (i = escaped.begin(); i != escaped.end(); ++i) {
-        if ( *i == '$') {
-            i = escaped.insert(i, '\\');
-            i++;
-        }
-    }
-#endif
-
-    Glib::ustring * mystring = new Glib::ustring("");
-    *mystring += "\"";
-    *mystring += escaped;
-    *mystring += "\"";
-    
-    return mystring;
-}
-
-/** \brief  Create a label for the description */
-Gtk::Widget *
-ParamDescription::get_widget (SPDocument * doc, Inkscape::XML::Node * node, sigc::signal<void> * changeSignal)
-{
-    Gtk::Label * label = Gtk::manage(new Gtk::Label(_(_value)));
-    label->set_line_wrap();
-    label->show();
-
-    Gtk::HBox * hbox = Gtk::manage(new Gtk::HBox(false, 4));
-    hbox->pack_start(*label, true, true, 5);
-    hbox->show();
-
-    return hbox;
-}
-
-/** \brief  Initialize the object, to do that, copy the data. */
-ParamDescription::ParamDescription (const gchar * name, const gchar * guitext, const gchar * desc, const Parameter::_scope_t scope, Inkscape::Extension::Extension * ext, Inkscape::XML::Node * xml) :
-    Parameter(name, guitext, desc, scope, ext), _value(NULL)
-{
-    // printf("Building Description\n");
-    const char * defaultval = NULL;
-    if (sp_repr_children(xml) != NULL)
-        defaultval = sp_repr_children(xml)->content();
-
-    if (defaultval != NULL)
-        _value = g_strdup(defaultval);
-
-    return;
-}
 
 ParamEnum::ParamEnum (const gchar * name, const gchar * guitext, const gchar * desc, const Parameter::_scope_t scope, Inkscape::Extension::Extension * ext, Inkscape::XML::Node * xml) :
     Parameter(name, guitext, desc, scope, ext), _current_choice(NULL)