Initial porting of some core files from VALA/gtk+ to C++/Qt.

2013-10-14 22:19:24 -04:00
parent 96d46a6bd5
commit 27e791212d
22 changed files with 4393 additions and 0 deletions
@@ -0,0 +1,153 @@
+/*  Color.h
+ *
+ *  Copyright (C) 2011  Jim Evins <evins@snaught.com>
+ *
+ *  This file is part of qtLabels.
+ *
+ *  qtLabels is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  qtLabels 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 qtLabels.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef qtlabels_Color_h
+#define qtlabels_Color_h
+
+#include <stdint.h>
+
+
+namespace qtLabels
+{
+
+	class Color
+	{
+
+	public:
+		/* double RGBA Constructor */
+		Color( double r = 0, double g = 0, double b = 0, double a = 1 )
+			: m_r(r), m_g(g), m_b(b), m_a(a)
+		{
+		}
+
+
+		static Color from_byte_rgba( uint8_t r, uint8_t g, uint8_t b, uint8_t a = 255 )
+		{
+			return Color( r/255.0, g/255.0, b/255.0, a/255.0 );
+		}
+
+
+		static Color from_legacy_color( uint32_t c )
+		{
+			return Color( ((c>>24) & 0xff) / 255.0,
+				      ((c>>16) & 0xff) / 255.0,
+				      ((c>>8)  & 0xff) / 255.0,
+				      ((c)     & 0xff) / 255.0 );
+		}
+
+
+		static Color none()
+		{
+			return Color( 0, 0, 0, 0 );
+		}
+
+
+		static Color black()
+		{
+			return Color( 0, 0, 0, 1 );
+		}
+
+
+		static Color white()
+		{
+			return Color( 1, 1, 1, 1 );
+		}
+
+
+		/* Muliply by opacity.  Create new color by applying opacity. */
+		Color operator*( double opacity ) const
+		{
+			return Color( m_r, m_g, m_b, m_a * opacity );
+		}
+
+
+		uint32_t to_legacy_color()
+		{
+			uint32_t c = (((uint32_t)(m_r*255) & 0xff) << 24) |
+				     (((uint32_t)(m_g*255) & 0xff) << 16) |
+				     (((uint32_t)(m_b*255) & 0xff) << 8)  |
+				     (((uint32_t)(m_a*255) & 0xff));
+			return c;
+		}
+
+
+		bool operator==( const Color &c )
+		{
+			return ( (m_r == c.m_r) &&
+				 (m_g == c.m_g) &&
+				 (m_b == c.m_b) &&
+				 (m_a == c.m_a) );
+		}
+
+
+		bool operator!=( const Color &c )
+		{
+			return ( (m_r != c.m_r) ||
+				 (m_g != c.m_g) ||
+				 (m_b != c.m_b) ||
+				 (m_a != c.m_a) );
+		}
+
+
+		bool has_alpha()
+		{
+			return ( m_a != 0 );
+		}
+
+
+		/*
+		 * Red (r) Property
+		 */
+		double r( void ) { return m_r; }
+		void r( double value ) { m_r = value; }
+		
+
+		/*
+		 * Green (g) Property
+		 */
+		double g( void ) { return m_g; }
+		void g( double value ) { m_g = value; }
+		
+
+		/*
+		 * Blue (b) Property
+		 */
+		double b( void ) { return m_b; }
+		void b( double value ) { m_b = value; }
+		
+
+		/*
+		 * Alpha (a) Property
+		 */
+		double a( void ) { return m_a; }
+		void a( double value ) { m_a = value; }
+		
+
+	private:
+		double m_r;
+		double m_g;
+		double m_b;
+		double m_a;
+
+	};
+	
+}
+
+#endif // qtlabels_Color_h