New unit parameter for LPEs which lpe-ruler now uses

(bzr r6487)

3 files changed, 148 insertions, 1 deletions

diff --git a/src/live_effects/parameter/Makefile_insert b/src/live_effects/parameter/Makefile_insert
index 14bbc3285..a5bbe3e66 100644
--- a/src/live_effects/parameter/Makefile_insert
+++ b/src/live_effects/parameter/Makefile_insert
@@ -22,4 +22,6 @@ live_effects_parameter_liblpeparam_a_SOURCES = \
 	live_effects/parameter/path.cpp	\
 	live_effects/parameter/path.h	\
 	live_effects/parameter/text.cpp	\
-	live_effects/parameter/text.h
+	live_effects/parameter/text.h	\
+	live_effects/parameter/unit.cpp	\
+	live_effects/parameter/unit.h
diff --git a/src/live_effects/parameter/unit.cpp b/src/live_effects/parameter/unit.cpp
new file mode 100644
index 000000000..1ec15e337
--- /dev/null
+++ b/src/live_effects/parameter/unit.cpp
@@ -0,0 +1,94 @@
+#define INKSCAPE_LIVEPATHEFFECT_PARAMETER_UNIT_CPP
+
+/*
+ * Copyright (C) Maximilian Albert 2008 <maximilian.albert@gmail.com>
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include "live_effects/parameter/unit.h"
+#include "live_effects/effect.h"
+#include "ui/widget/registered-widget.h"
+
+namespace Inkscape {
+
+namespace LivePathEffect {
+
+
+UnitParam::UnitParam( const Glib::ustring& label, const Glib::ustring& tip,
+                              const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,
+                              Effect* effect, SPUnitId default_value)
+    : Parameter(label, tip, key, wr, effect)
+{
+    defunit = &sp_unit_get_by_id(default_value);;
+    unit = defunit;
+}
+
+UnitParam::~UnitParam()
+{
+}
+
+bool
+UnitParam::param_readSVGValue(const gchar * strvalue)
+{
+    SPUnit const *newval = sp_unit_get_by_abbreviation(strvalue);
+    if (newval) {
+        param_set_value(newval);
+        return true;
+    }
+    return false;
+}
+
+gchar *
+UnitParam::param_getSVGValue() const
+{
+    return g_strdup(sp_unit_get_abbreviation(unit));
+}
+
+void
+UnitParam::param_set_default()
+{
+    param_set_value(defunit);
+}
+
+void
+UnitParam::param_set_value(SPUnit const *val)
+{
+    unit = val;
+}
+
+const gchar *
+UnitParam::get_abbreviation()
+{
+    return sp_unit_get_abbreviation(unit);
+}
+
+Gtk::Widget *
+UnitParam::param_newWidget(Gtk::Tooltips * /*tooltips*/)
+{
+    Inkscape::UI::Widget::RegisteredUnitMenu* unit_menu = Gtk::manage(
+        new Inkscape::UI::Widget::RegisteredUnitMenu(param_label,
+                                                     param_key,
+                                                     *param_wr,
+                                                     param_effect->getRepr(),
+                                                     param_effect->getSPDoc()));
+
+    unit_menu->setUnit(unit);
+    unit_menu->set_undo_parameters(SP_VERB_DIALOG_LIVE_PATH_EFFECT, _("Change unit parameter"));
+
+    return dynamic_cast<Gtk::Widget *> (unit_menu);
+}
+
+} /* 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 :
diff --git a/src/live_effects/parameter/unit.h b/src/live_effects/parameter/unit.h
new file mode 100644
index 000000000..15192b074
--- /dev/null
+++ b/src/live_effects/parameter/unit.h
@@ -0,0 +1,51 @@
+#ifndef INKSCAPE_LIVEPATHEFFECT_PARAMETER_UNIT_H
+#define INKSCAPE_LIVEPATHEFFECT_PARAMETER_UNIT_H
+
+/*
+ * Inkscape::LivePathEffectParameters
+ *
+* Copyright (C) Maximilian Albert 2008 <maximilian.albert@gmail.com>
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include "live_effects/parameter/parameter.h"
+#include <helper/units.h>
+
+namespace Inkscape {
+
+namespace LivePathEffect {
+
+class UnitParam : public Parameter {
+public:
+    UnitParam(const Glib::ustring& label,
+		  const Glib::ustring& tip,
+		  const Glib::ustring& key, 
+		  Inkscape::UI::Widget::Registry* wr,
+		  Effect* effect,
+		  SPUnitId default_value = SP_UNIT_PX);
+    virtual ~UnitParam();
+
+    virtual bool param_readSVGValue(const gchar * strvalue);
+    virtual gchar * param_getSVGValue() const;
+    virtual void param_set_default();
+    void param_set_value(SPUnit const *val);
+    const gchar *get_abbreviation();
+
+    virtual Gtk::Widget * param_newWidget(Gtk::Tooltips * tooltips);
+
+    operator SPUnit const *() { return unit; }
+
+private:
+    SPUnit const *unit;
+    SPUnit const *defunit;
+
+    UnitParam(const UnitParam&);
+    UnitParam& operator=(const UnitParam&);
+};
+
+} //namespace LivePathEffect
+
+} //namespace Inkscape
+
+#endif