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2024-03-06 14:54:30 +08:00
commit edac2715f0
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--- a/lib/engine/rs_color.h
+++ b/lib/engine/rs_color.h
@@ -0,0 +1,114 @@
+/****************************************************************************
+**
+** This file is part of the LibreCAD project, a 2D CAD program
+**
+** Copyright (C) 2020 A. Stebich (librecad@mail.lordofbikes.de)
+** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
+** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
+**
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software 
+** Foundation and appearing in the file gpl-2.0.txt included in the
+** packaging of this file.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+** 
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software
+** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+**
+** This copyright notice MUST APPEAR in all copies of the script!  
+**
+**********************************************************************/
+
+
+#ifndef RS_COLOR_H
+#define RS_COLOR_H
+
+#include <QColor>
+
+#include "rs.h"
+#include "rs_flags.h"
+
+//! Color defined by layer not entity
+//#define C_BY_LAYER     0x00000001
+//! Color defined by block not entity
+//#define C_BY_BLOCK     0x00000002
+
+/**
+ * Color class.
+ *
+ * @author Andrew Mustun
+ */
+class RS_Color: public QColor, public RS_Flags {
+public:
+    RS_Color() : QColor(), RS_Flags() {}
+    RS_Color(int r, int g, int b) : QColor(r, g, b), RS_Flags() {}
+    RS_Color(int r, int g, int b, int a) : QColor(r, g, b, a), RS_Flags() {}
+    RS_Color(const QColor& c) : QColor(c), RS_Flags() {}
+    RS_Color(const Qt::GlobalColor color) : QColor(color), RS_Flags() {}
+    RS_Color(const RS_Color& c) : QColor(c), RS_Flags() {
+        setFlags(c.getFlags());
+    }
+    RS_Color(unsigned int f) : QColor(), RS_Flags(f) {}
+    RS_Color(QString name) : QColor(name), RS_Flags() {}
+
+
+    /** @return A copy of this color without flags. */
+    RS_Color stripFlags() const {
+        return RS_Color(red(), green(), blue());
+    }
+
+    /** @return true if the color is defined by layer. */
+    bool isByLayer() const {
+        return getFlag(RS2::FlagByLayer);
+    }
+
+    /** @return true if the color is defined by block. */
+    bool isByBlock() const {
+        return getFlag(RS2::FlagByBlock);
+    }
+
+    QColor toQColor(void) const {
+            QColor c0;
+            c0.setRgb(red(),green(),blue());
+            return c0;
+    }
+
+    //These 3 methods are used for plugins
+    int toIntColor(void) const;
+    void fromIntColor(int co);
+    int colorDistance(const RS_Color& c) const;
+
+    enum {
+        Black = 0,
+        /**
+         * Minimum acceptable distance between two colors before visibility
+         * enhancement is required. Determined empirically.
+         */
+        MinColorDistance = 20,  //< in %
+    };
+
+    RS_Color& operator = (const RS_Color& c) {
+        setRgb(c.red(), c.green(), c.blue());
+        setFlags(c.getFlags());
+
+        return *this;
+    }
+
+    bool operator == (const RS_Color& c) const {
+        return (red()==c.red() &&
+                green()==c.green() &&
+                blue()==c.blue() &&
+                getFlags()==c.getFlags());
+    }
+
+    friend std::ostream& operator << (std::ostream& os, const RS_Color& c);
+};
+
+#endif
+