1 files changed, 182 insertions, 0 deletions
diff --git a/src/live_effects/parameter/transformedpoint.cpp b/src/live_effects/parameter/transformedpoint.cpp
new file mode 100644
index 000000000..0d03432c3
--- /dev/null
+++ b/src/live_effects/parameter/transformedpoint.cpp
@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com>
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include "ui/widget/registered-widget.h"
+#include "live_effects/parameter/transformedpoint.h"
+#include "sp-lpe-item.h"
+#include "knotholder.h"
+#include "svg/svg.h"
+#include "svg/stringstream.h"
+
+#include "live_effects/effect.h"
+#include "desktop.h"
+#include "verbs.h"
+
+#include <glibmm/i18n.h>
+
+namespace Inkscape {
+
+namespace LivePathEffect {
+
+TransformedPointParam::TransformedPointParam( const Glib::ustring& label, const Glib::ustring& tip,
+                        const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,
+                        Effect* effect, Geom::Point default_vector,
+                        bool dontTransform)
+    : Parameter(label, tip, key, wr, effect),
+      defvalue(default_vector),
+      origin(0.,0.),
+      vector(default_vector),
+      noTransform(dontTransform)
+{
+    vec_knot_shape = SP_KNOT_SHAPE_DIAMOND;
+    vec_knot_mode  = SP_KNOT_MODE_XOR;
+    vec_knot_color = 0xffffb500;
+}
+
+TransformedPointParam::~TransformedPointParam()
+{
+
+}
+
+void
+TransformedPointParam::param_set_default()
+{
+    setOrigin(Geom::Point(0.,0.));
+    setVector(defvalue);
+}
+
+bool
+TransformedPointParam::param_readSVGValue(const gchar * strvalue)
+{
+    gchar ** strarray = g_strsplit(strvalue, ",", 4);
+    if (!strarray) {
+        return false;
+    }
+    double val[4];
+    unsigned int i = 0;
+    while (i < 4 && strarray[i]) {
+        if (sp_svg_number_read_d(strarray[i], &val[i]) != 0) {
+            i++;
+        } else {
+            break;
+        }
+    }
+    g_strfreev (strarray);
+    if (i == 4) {
+        setOrigin( Geom::Point(val[0], val[1]) );
+        setVector( Geom::Point(val[2], val[3]) );
+        return true;
+    }
+    return false;
+}
+
+gchar *
+TransformedPointParam::param_getSVGValue() const
+{
+    Inkscape::SVGOStringStream os;
+    os << origin << " , " << vector;
+    gchar * str = g_strdup(os.str().c_str());
+    return str;
+}
+
+Gtk::Widget *
+TransformedPointParam::param_newWidget()
+{
+    Inkscape::UI::Widget::RegisteredVector * pointwdg = Gtk::manage(
+        new Inkscape::UI::Widget::RegisteredVector( param_label,
+                                                    param_tooltip,
+                                                    param_key,
+                                                    *param_wr,
+                                                    param_effect->getRepr(),
+                                                    param_effect->getSPDoc() ) );
+    pointwdg->setPolarCoords();
+    pointwdg->setValue( vector, origin );
+    pointwdg->clearProgrammatically();
+    pointwdg->set_undo_parameters(SP_VERB_DIALOG_LIVE_PATH_EFFECT, _("Change vector parameter"));
+
+    Gtk::HBox * hbox = Gtk::manage( new Gtk::HBox() );
+    static_cast<Gtk::HBox*>(hbox)->pack_start(*pointwdg, true, true);
+    static_cast<Gtk::HBox*>(hbox)->show_all_children();
+
+    return dynamic_cast<Gtk::Widget *> (hbox);
+}
+
+void
+TransformedPointParam::set_and_write_new_values(Geom::Point const &new_origin, Geom::Point const &new_vector)
+{
+    setValues(new_origin, new_vector);
+    gchar * str = param_getSVGValue();
+    param_write_to_repr(str);
+    g_free(str);
+}
+
+void
+TransformedPointParam::param_transform_multiply(Geom::Affine const& postmul, bool /*set*/)
+{
+    if (!noTransform) {
+        set_and_write_new_values( origin * postmul, vector * postmul.withoutTranslation() );
+    }
+}
+
+
+void
+TransformedPointParam::set_vector_oncanvas_looks(SPKnotShapeType shape, SPKnotModeType mode, guint32 color)
+{
+    vec_knot_shape = shape;
+    vec_knot_mode  = mode;
+    vec_knot_color = color;
+}
+
+void
+TransformedPointParam::set_oncanvas_color(guint32 color)
+{
+    vec_knot_color = color;
+}
+
+class TransformedPointParamKnotHolderEntity_Vector : public KnotHolderEntity {
+public:
+    TransformedPointParamKnotHolderEntity_Vector(TransformedPointParam *p) : param(p) { }
+    virtual ~TransformedPointParamKnotHolderEntity_Vector() {}
+
+    virtual void knot_set(Geom::Point const &p, Geom::Point const &/*origin*/, guint /*state*/) {
+        Geom::Point const s = p - param->origin;
+        /// @todo implement angle snapping when holding CTRL
+        param->setVector(s);
+        sp_lpe_item_update_patheffect(SP_LPE_ITEM(item), false, false);
+    };
+    virtual Geom::Point knot_get() const{
+        return param->origin + param->vector;
+    };
+    virtual void knot_click(guint /*state*/){
+        g_print ("This is the vector handle associated to parameter '%s'\n", param->param_key.c_str());
+    };
+
+private:
+    TransformedPointParam *param;
+};
+
+void
+TransformedPointParam::addKnotHolderEntities(KnotHolder *knotholder, SPDesktop *desktop, SPItem *item)
+{
+    TransformedPointParamKnotHolderEntity_Vector *vector_e = new TransformedPointParamKnotHolderEntity_Vector(this);
+    vector_e->create(desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN, handleTip(), vec_knot_shape, vec_knot_mode, vec_knot_color);
+    knotholder->add(vector_e);
+}
+
+} /* namespace LivePathEffect */
+
+} /* 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 :