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index 846c2f9e8de17761f284765da903fc12c0329d7a..d5efc7ce3852c31da10d134305e68304b7760335 100644 (file)
-#define INKSCAPE_LIVEPATHEFFECT_PARAMETER_RANDOM_CPP\r
-\r
-/*\r
- * Copyright (C) Johan Engelen 2007 <j.b.c.engelen@utwente.nl>\r
- *\r
- * Released under GNU GPL, read the file 'COPYING' for more information\r
- */\r
-\r
-#include "live_effects/parameter/random.h"\r
-#include "live_effects/effect.h"\r
-#include "svg/svg.h"\r
-#include "libnr/nr-values.h"\r
-\r
-#include <gtkmm.h>\r
-#include "ui/widget/random.h"\r
-\r
-#include "svg/stringstream.h"\r
-\r
-#include "verbs.h"\r
-\r
-#define noLPERANDOMPARAM_DEBUG\r
-\r
-namespace Inkscape {\r
-\r
-namespace LivePathEffect {\r
-\r
-\r
-RandomParam::RandomParam( const Glib::ustring& label, const Glib::ustring& tip,\r
- const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,\r
- Effect* effect, gdouble default_value, long default_seed)\r
- : Parameter(label, tip, key, wr, effect)\r
-{\r
- defvalue = default_value;\r
- value = defvalue;\r
- min = -NR_HUGE;\r
- max = NR_HUGE;\r
- integer = false;\r
- regrandom = NULL;\r
-\r
- defseed = default_seed;\r
- startseed = defseed;\r
- seed = startseed;\r
-}\r
-\r
-RandomParam::~RandomParam()\r
-{\r
- if (regrandom)\r
- delete regrandom;\r
-}\r
-\r
-bool\r
-RandomParam::param_readSVGValue(const gchar * strvalue)\r
-{\r
- double newval, newstartseed;\r
- gchar** stringarray = g_strsplit (strvalue, ";", 2);\r
- unsigned int success = sp_svg_number_read_d(stringarray[0], &newval);\r
- if (success == 1) {\r
- success += sp_svg_number_read_d(stringarray[1], &newstartseed);\r
- if (success == 2) {\r
- param_set_value(newval, newstartseed);\r
- } else {\r
- param_set_value(newval, defseed);\r
- }\r
- g_strfreev(stringarray);\r
- return true;\r
- }\r
- g_strfreev(stringarray);\r
- return false;\r
-}\r
-\r
-gchar *\r
-RandomParam::param_writeSVGValue() const\r
-{\r
- Inkscape::SVGOStringStream os;\r
- os << value << ';' << startseed;\r
- gchar * str = g_strdup(os.str().c_str());\r
- return str;\r
-}\r
-\r
-void\r
-RandomParam::param_set_default() \r
-{\r
- param_set_value(defvalue, defseed);\r
-}\r
-\r
-void\r
-RandomParam::param_set_value(gdouble val, long newseed) \r
-{\r
- value = val;\r
- if (integer)\r
- value = round(value);\r
- if (value > max)\r
- value = max;\r
- if (value < min)\r
- value = min;\r
-\r
- startseed = setup_seed(newseed);\r
- seed = startseed;\r
-\r
- if (regrandom)\r
- regrandom->setValue(value, startseed);\r
-}\r
-\r
-void\r
-RandomParam::param_set_range(gdouble min, gdouble max) \r
-{\r
- this->min = min;\r
- this->max = max;\r
- if (regrandom)\r
- regrandom->getR()->setRange(min, max);\r
-\r
- param_set_value(value, startseed); // reset value, to check whether it is in range\r
-}\r
-\r
-void\r
-RandomParam::param_make_integer(bool yes)\r
-{\r
- integer = yes;\r
- if (regrandom) {\r
- regrandom->getR()->setDigits(0);\r
- regrandom->getR()->setIncrements(1, 10);\r
- }\r
-}\r
-\r
-void\r
-RandomParam::resetRandomizer()\r
-{\r
- seed = startseed;\r
-}\r
-\r
-\r
-Gtk::Widget *\r
-RandomParam::param_getWidget()\r
-{\r
- // TODO: add a button to set a different startseed\r
- if (!regrandom) {\r
- regrandom = new Inkscape::UI::Widget::RegisteredRandom();\r
- regrandom->init(param_label, param_tooltip, param_key, *param_wr, param_effect->getRepr(), param_effect->getSPDoc());\r
- regrandom->setValue(value, startseed);\r
- if (integer)\r
- param_make_integer();\r
-\r
- regrandom->set_undo_parameters(SP_VERB_DIALOG_LIVE_PATH_EFFECT, _("Change random parameter"));\r
- }\r
- return dynamic_cast<Gtk::Widget *> (regrandom->getR());\r
-}\r
-\r
-RandomParam::operator gdouble()\r
-{\r
- return rand() * value;\r
-};\r
-\r
-/* RNG stolen from /display/nr-filter-turbulence.cpp */\r
-#define RAND_m 2147483647 /* 2**31 - 1 */\r
-#define RAND_a 16807 /* 7**5; primitive root of m */\r
-#define RAND_q 127773 /* m / a */\r
-#define RAND_r 2836 /* m % a */\r
-#define BSize 0x100\r
-\r
-long\r
-RandomParam::setup_seed(long lSeed)\r
-{\r
- if (lSeed <= 0) lSeed = -(lSeed % (RAND_m - 1)) + 1;\r
- if (lSeed > RAND_m - 1) lSeed = RAND_m - 1;\r
- return lSeed;\r
-}\r
-\r
-// generates random number between 0 and 1\r
-gdouble\r
-RandomParam::rand()\r
-{\r
- long result;\r
- result = RAND_a * (seed % RAND_q) - RAND_r * (seed / RAND_q);\r
- if (result <= 0) result += RAND_m;\r
- seed = result;\r
-\r
- gdouble dresult = (gdouble)(result % BSize) / BSize;\r
- return dresult;\r
-}\r
-\r
-\r
-} /* namespace LivePathEffect */\r
-} /* namespace Inkscape */\r
-\r
-/*\r
- Local Variables:\r
- mode:c++\r
- c-file-style:"stroustrup"\r
- c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))\r
- indent-tabs-mode:nil\r
- fill-column:99\r
- End:\r
-*/\r
-// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :\r
+#define INKSCAPE_LIVEPATHEFFECT_PARAMETER_RANDOM_CPP
+
+/*
+ * Copyright (C) Johan Engelen 2007 <j.b.c.engelen@utwente.nl>
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include "live_effects/parameter/random.h"
+#include "live_effects/effect.h"
+#include "svg/svg.h"
+#include "libnr/nr-values.h"
+
+#include <gtkmm.h>
+#include "ui/widget/random.h"
+
+#include "svg/stringstream.h"
+
+#include "verbs.h"
+
+#define noLPERANDOMPARAM_DEBUG
+
+namespace Inkscape {
+
+namespace LivePathEffect {
+
+
+RandomParam::RandomParam( const Glib::ustring& label, const Glib::ustring& tip,
+ const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,
+ Effect* effect, gdouble default_value, long default_seed)
+ : Parameter(label, tip, key, wr, effect)
+{
+ defvalue = default_value;
+ value = defvalue;
+ min = -NR_HUGE;
+ max = NR_HUGE;
+ integer = false;
+
+ defseed = default_seed;
+ startseed = defseed;
+ seed = startseed;
+}
+
+RandomParam::~RandomParam()
+{
+}
+
+bool
+RandomParam::param_readSVGValue(const gchar * strvalue)
+{
+ double newval, newstartseed;
+ gchar** stringarray = g_strsplit (strvalue, ";", 2);
+ unsigned int success = sp_svg_number_read_d(stringarray[0], &newval);
+ if (success == 1) {
+ success += sp_svg_number_read_d(stringarray[1], &newstartseed);
+ if (success == 2) {
+ param_set_value(newval, newstartseed);
+ } else {
+ param_set_value(newval, defseed);
+ }
+ g_strfreev(stringarray);
+ return true;
+ }
+ g_strfreev(stringarray);
+ return false;
+}
+
+gchar *
+RandomParam::param_writeSVGValue() const
+{
+ Inkscape::SVGOStringStream os;
+ os << value << ';' << startseed;
+ gchar * str = g_strdup(os.str().c_str());
+ return str;
+}
+
+void
+RandomParam::param_set_default()
+{
+ param_set_value(defvalue, defseed);
+}
+
+void
+RandomParam::param_set_value(gdouble val, long newseed)
+{
+ value = val;
+ if (integer)
+ value = round(value);
+ if (value > max)
+ value = max;
+ if (value < min)
+ value = min;
+
+ startseed = setup_seed(newseed);
+ seed = startseed;
+}
+
+void
+RandomParam::param_set_range(gdouble min, gdouble max)
+{
+ this->min = min;
+ this->max = max;
+}
+
+void
+RandomParam::param_make_integer(bool yes)
+{
+ integer = yes;
+}
+
+void
+RandomParam::resetRandomizer()
+{
+ seed = startseed;
+}
+
+
+Gtk::Widget *
+RandomParam::param_newWidget(Gtk::Tooltips * /*tooltips*/)
+{
+ Inkscape::UI::Widget::RegisteredRandom* regrandom = Gtk::manage(
+ new Inkscape::UI::Widget::RegisteredRandom( param_label,
+ param_tooltip,
+ param_key,
+ *param_wr,
+ param_effect->getRepr(),
+ param_effect->getSPDoc() ) );
+
+ regrandom->setValue(value, startseed);
+ if (integer) {
+ regrandom->setDigits(0);
+ regrandom->setIncrements(1, 10);
+ }
+ regrandom->setRange(min, max);
+ regrandom->setProgrammatically = false;
+
+ regrandom->set_undo_parameters(SP_VERB_DIALOG_LIVE_PATH_EFFECT, _("Change random parameter"));
+
+ return dynamic_cast<Gtk::Widget *> (regrandom);
+}
+
+RandomParam::operator gdouble()
+{
+ return rand() * value;
+};
+
+/* RNG stolen from /display/nr-filter-turbulence.cpp */
+#define RAND_m 2147483647 /* 2**31 - 1 */
+#define RAND_a 16807 /* 7**5; primitive root of m */
+#define RAND_q 127773 /* m / a */
+#define RAND_r 2836 /* m % a */
+#define BSize 0x100
+
+long
+RandomParam::setup_seed(long lSeed)
+{
+ if (lSeed <= 0) lSeed = -(lSeed % (RAND_m - 1)) + 1;
+ if (lSeed > RAND_m - 1) lSeed = RAND_m - 1;
+ return lSeed;
+}
+
+// generates random number between 0 and 1
+gdouble
+RandomParam::rand()
+{
+ long result;
+ result = RAND_a * (seed % RAND_q) - RAND_r * (seed / RAND_q);
+ if (result <= 0) result += RAND_m;
+ seed = result;
+
+ gdouble dresult = (gdouble)(result % BSize) / BSize;
+ return dresult;
+}
+
+
+} /* 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 :