1 files changed, 155 insertions, 0 deletions
diff --git a/src/ui/tools/dynamic-base.cpp b/src/ui/tools/dynamic-base.cpp
new file mode 100644
index 0000000..de0ab07
--- /dev/null
+++ b/src/ui/tools/dynamic-base.cpp
@@ -0,0 +1,155 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** @file
+ * Common drawing mode. Base class of Eraser and Calligraphic tools.
+ *//*
+ * Authors: see git history
+ *
+ * Copyright (C) 2018 Authors
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "ui/tools/dynamic-base.h"
+
+#include "message-context.h"
+#include "desktop.h"
+
+#include "display/curve.h"
+#include "display/control/canvas-item-bpath.h"
+
+#include "util/units.h"
+
+using Inkscape::Util::Unit;
+using Inkscape::Util::Quantity;
+using Inkscape::Util::unit_table;
+
+#define MIN_PRESSURE      0.0
+#define MAX_PRESSURE      1.0
+#define DEFAULT_PRESSURE  1.0
+
+#define DRAG_MIN 0.0
+#define DRAG_DEFAULT 1.0
+#define DRAG_MAX 1.0
+
+namespace Inkscape {
+namespace UI {
+namespace Tools {
+
+DynamicBase::DynamicBase(SPDesktop *desktop, std::string prefs_path, const std::string &cursor_filename)
+    : ToolBase(desktop, prefs_path, cursor_filename)
+    , accumulated(nullptr)
+    , currentshape(nullptr)
+    , currentcurve(nullptr)
+    , cal1(nullptr)
+    , cal2(nullptr)
+    , point1()
+    , point2()
+    , npoints(0)
+    , repr(nullptr)
+    , cur(0, 0)
+    , vel(0, 0)
+    , vel_max(0)
+    , acc(0, 0)
+    , ang(0, 0)
+    , last(0, 0)
+    , del(0, 0)
+    , pressure(DEFAULT_PRESSURE)
+    , xtilt(0)
+    , ytilt(0)
+    , dragging(false)
+    , usepressure(false)
+    , usetilt(false)
+    , mass(0.3)
+    , drag(DRAG_DEFAULT)
+    , angle(30.0)
+    , width(0.2)
+    , vel_thin(0.1)
+    , flatness(0.9)
+    , tremor(0)
+    , cap_rounding(0)
+    , is_drawing(false)
+    , abs_width(false)
+{
+}
+
+DynamicBase::~DynamicBase() {
+    for (auto segment : segments) {
+        delete segment;
+    }
+    segments.clear();
+
+    if (this->currentshape) {
+        delete currentshape;
+    }
+}
+
+void DynamicBase::set(const Inkscape::Preferences::Entry& value) {
+    Glib::ustring path = value.getEntryName();
+    
+    // ignore preset modifications
+    static Glib::ustring const presets_path = getPrefsPath() + "/preset";
+    Glib::ustring const &full_path = value.getPath();
+
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    Unit const *unit = unit_table.getUnit(prefs->getString("/tools/calligraphic/unit"));
+
+    if (full_path.compare(0, presets_path.size(), presets_path) == 0) {
+    	return;
+    }
+
+    if (path == "mass") {
+        this->mass = 0.01 * CLAMP(value.getInt(10), 0, 100);
+    } else if (path == "wiggle") {
+        this->drag = CLAMP((1 - 0.01 * value.getInt()), DRAG_MIN, DRAG_MAX); // drag is inverse to wiggle
+    } else if (path == "angle") {
+        this->angle = CLAMP(value.getDouble(), -90, 90);
+    } else if (path == "width") {
+        this->width = 0.01 * CLAMP(value.getDouble(), Quantity::convert(0.001, unit, "px"), Quantity::convert(100, unit, "px"));
+    } else if (path == "thinning") {
+        this->vel_thin = 0.01 * CLAMP(value.getInt(10), -100, 100);
+    } else if (path == "tremor") {
+        this->tremor = 0.01 * CLAMP(value.getInt(), 0, 100);
+    } else if (path == "flatness") {
+        this->flatness = 0.01 * CLAMP(value.getInt(), -100, 100);
+    } else if (path == "usepressure") {
+        this->usepressure = value.getBool();
+    } else if (path == "usetilt") {
+        this->usetilt = value.getBool();
+    } else if (path == "abs_width") {
+        this->abs_width = value.getBool();
+    } else if (path == "cap_rounding") {
+        this->cap_rounding = value.getDouble();
+    }
+}
+
+/* Get normalized point */
+Geom::Point DynamicBase::getNormalizedPoint(Geom::Point v) const {
+    auto drect = _desktop->get_display_area();
+
+    double const max = drect.maxExtent();
+
+    return (v - drect.bounds().min()) / max;
+}
+
+/* Get view point */
+Geom::Point DynamicBase::getViewPoint(Geom::Point n) const {
+    auto drect = _desktop->get_display_area();
+
+    double const max = drect.maxExtent();
+
+    return n * max + drect.bounds().min();
+}
+
+}
+}
+}
+
+/*
+  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 :