GODOT IS OPEN SOURCE

1 files changed, 377 insertions, 0 deletions

diff --git a/core/color.cpp b/core/color.cpp
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+++ b/core/color.cpp
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+/*************************************************************************/
+/*  color.cpp                                                            */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+#include "color.h"
+#include "math_funcs.h"
+#include "print_string.h"
+
+uint32_t Color::to_ARGB32() const {
+
+	uint32_t c=(uint8_t)(a*255);
+	c<<=8;
+	c|=(uint8_t)(r*255);
+	c<<=8;
+	c|=(uint8_t)(g*255);
+	c<<=8;
+	c|=(uint8_t)(b*255);
+
+	return c;
+}
+
+uint32_t Color::to_32() const {
+
+	uint32_t c=(uint8_t)(a*255);
+	c<<=8;
+	c|=(uint8_t)(r*255);
+	c<<=8;
+	c|=(uint8_t)(g*255);
+	c<<=8;
+	c|=(uint8_t)(b*255);
+
+	return c;
+}
+
+float Color::get_h() const {
+
+	float min = MIN( r, g );
+	min = MIN( min, b );
+	float max = MAX( r, g );
+	max = MAX( max, b );
+
+	float delta = max - min;
+
+	if( delta == 0 )
+		return 0;
+
+	float h;
+	if( r == max )
+		h = ( g - b ) / delta;		// between yellow & magenta
+	else if( g == max )
+		h = 2 + ( b - r ) / delta;	// between cyan & yellow
+	else
+		h = 4 + ( r - g ) / delta;	// between magenta & cyan
+	
+	h/=6.0;
+	if (h<0)
+		h+=1.0;
+		
+	return h;
+}
+
+float Color::get_s() const {
+
+
+	float min = MIN( r, g );
+	min = MIN( min, b );
+	float max = MAX( r, g );
+	max = MAX( max, b );
+
+	float delta = max - min;
+
+	return (max!=0) ? (delta / max) : 0;
+
+}
+
+float Color::get_v() const {
+
+	float max = MAX( r, g );
+	max = MAX( max, b );
+	return max;
+}
+
+void Color::set_hsv(float p_h, float p_s, float p_v, float p_alpha) {
+
+	int i;
+	float f, p, q, t;
+	a=p_alpha;
+
+	if( p_s == 0 ) {
+		// acp_hromatic (grey)
+		r = g = b = p_v;
+		return;
+	}
+
+	p_h *=6.0;
+	i = Math::floor( p_h );
+	f = p_h - i;
+	p = p_v * ( 1 - p_s );
+	q = p_v * ( 1 - p_s * f );
+	t = p_v * ( 1 - p_s * ( 1 - f ) );
+
+	switch( i ) {
+		case 0:
+			r = p_v;
+			g = t;
+			b = p;
+			break;
+		case 1:
+			r = q;
+			g = p_v;
+			b = p;
+			break;
+		case 2:
+			r = p;
+			g = p_v;
+			b = t;
+			break;
+		case 3:
+			r = p;
+			g = q;
+			b = p_v;
+			break;
+		case 4:
+			r = t;
+			g = p;
+			b = p_v;
+			break;
+		default:		// cap_se 5:
+			r = p_v;
+			g = p;
+			b = q;
+			break;
+	}
+}
+
+void Color::invert() {
+
+	r=1.0-r;
+	g=1.0-g;	
+	g=1.0-b;	
+}
+void Color::contrast() {
+
+	r=Math::fmod(r+0.5,1.0);
+	g=Math::fmod(g+0.5,1.0);
+	b=Math::fmod(b+0.5,1.0);
+}
+
+Color Color::hex(uint32_t p_hex) {
+
+	float a = (p_hex&0xFF)/255.0;
+	p_hex>>=8;
+	float b = (p_hex&0xFF)/255.0;
+	p_hex>>=8;
+	float g = (p_hex&0xFF)/255.0;
+	p_hex>>=8;
+	float r = (p_hex&0xFF)/255.0;
+
+	return Color(r,g,b,a);
+}
+
+static float _parse_col(const String& p_str, int p_ofs) {
+
+	int ig=0;
+
+	for(int i=0;i<2;i++) {
+
+		int c=p_str[i+p_ofs];
+		int v=0;
+
+		if (c>='0' && c<='9') {
+			v=c-'0';
+		} else if (c>='a' && c<='f') {
+			v=c-'a';
+			v+=10;
+		} else if (c>='A' && c<='F') {
+			v=c-'A';
+			v+=10;
+		} else {
+			return -1;
+		}
+
+		if (i==0)
+			ig+=v*16;
+		else
+			ig+=v;
+
+	}
+
+	return ig;
+
+}
+
+Color Color::inverted() const {
+
+	Color c=*this;
+	c.invert();
+	return c;
+}
+
+Color Color::contrasted() const {
+
+	Color c=*this;
+	c.contrasted();
+	return c;
+}
+
+
+Color Color::html(const String& p_color) {
+
+	String color = p_color;
+	if (color.length()==0)
+		return Color();
+	if (color[0]=='#')
+		color=color.substr(1,color.length()-1);
+
+	bool alpha=false;
+
+	if (color.length()==8) {
+		alpha=true;
+	} else if (color.length()==6) {
+		alpha=false;
+	} else {
+		ERR_EXPLAIN("Invalid Color Code: "+p_color);
+		ERR_FAIL_V(Color());
+	}
+
+	int a=255;
+	if (alpha) {
+		a=_parse_col(color,0);
+		if (a<0) {
+			ERR_EXPLAIN("Invalid Color Code: "+p_color);
+			ERR_FAIL_V(Color());
+		}
+	}
+
+	int from=alpha?2:0;
+
+	int r=_parse_col(color,from+0);
+	if (r<0) {
+		ERR_EXPLAIN("Invalid Color Code: "+p_color);
+		ERR_FAIL_V(Color());
+	}
+	int g=_parse_col(color,from+2);
+	if (g<0) {
+		ERR_EXPLAIN("Invalid Color Code: "+p_color);
+		ERR_FAIL_V(Color());
+	}
+	int b=_parse_col(color,from+4);
+	if (b<0) {
+		ERR_EXPLAIN("Invalid Color Code: "+p_color);
+		ERR_FAIL_V(Color());
+	}
+
+	return Color(r/255.0,g/255.0,b/255.0,a/255.0);
+}
+
+bool Color::html_is_valid(const String& p_color) {
+
+	String color = p_color;
+
+	if (color.length()==0)
+		return false;
+	if (color[0]=='#')
+		color=color.substr(1,color.length()-1);
+
+	bool alpha=false;
+
+	if (color.length()==8) {
+		alpha=true;
+	} else if (color.length()==6) {
+		alpha=false;
+	} else {
+		return false;
+	}
+
+	int a=255;
+	if (alpha) {
+		a=_parse_col(color,0);
+		if (a<0) {
+			return false;
+		}
+	}
+
+	int from=alpha?2:0;
+
+	int r=_parse_col(color,from+0);
+	if (r<0) {
+		return false;
+	}
+	int g=_parse_col(color,from+2);
+	if (g<0) {
+		return false;
+	}
+	int b=_parse_col(color,from+4);
+	if (b<0) {
+		return false;
+	}
+
+	return true;
+
+}
+
+
+
+String _to_hex(float p_val) {
+
+	int v = p_val * 255;
+	v = CLAMP(v,0,255);
+	String ret;
+
+	for(int i=0;i<2;i++) {
+
+		CharType c[2]={0,0};
+		int lv = v&0xF;
+		if (lv<10)
+			c[0]='0'+lv;
+		else
+			c[0]='a'+lv-10;
+
+		v>>=4;
+		String cs=(const CharType*)c;
+		ret = cs + ret;
+	}
+
+	return ret;
+
+}
+
+String Color::to_html(bool p_alpha) const {
+
+	String txt;
+	txt+=_to_hex(r);
+	txt+=_to_hex(g);
+	txt+=_to_hex(b);
+	if (p_alpha)
+		txt=_to_hex(a)+txt;
+	return txt;
+
+}
+
+
+float Color::gray() const {
+
+	return (r+g+b)/3.0;	
+}
+
+Color::operator String() const {
+
+	return rtos(r)+", "+rtos(g)+", "+rtos(b)+", "+rtos(a);
+}
+
+