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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* rect.cpp
*
* Copyright 2007 Novell, Inc. (http://www.novell.com)
*
* See the LICENSE file included with the distribution for details.
*
*/
#include <config.h>
#include <stdlib.h>
#include "rect.h"
#include "utils.h"
bool
Rect::FromStr (const char *s, Rect *r)
{
GArray *values = double_garray_from_str (s, 4);
if (!values)
return false;
*r = Rect (g_array_index (values, double, 0),
g_array_index (values, double, 1),
g_array_index (values, double, 2),
g_array_index (values, double, 3));
g_array_free (values, true);
return true;
}
Rect
Rect::Transform (cairo_matrix_t *transform)
{
Rect rect = *this;
if (!transform)
return rect;
double p1_x = rect.x; double p1_y = rect.y;
double p2_x = rect.x+rect.width; double p2_y = rect.y;
double p3_x = rect.x+rect.width; double p3_y = rect.y+rect.height;
double p4_x = rect.x; double p4_y = rect.y+rect.height;
cairo_matrix_transform_point (transform, &p1_x, &p1_y);
cairo_matrix_transform_point (transform, &p2_x, &p2_y);
cairo_matrix_transform_point (transform, &p3_x, &p3_y);
cairo_matrix_transform_point (transform, &p4_x, &p4_y);
#define MIN2(v1,v2) ((v1)>(v2)?(v2):(v1))
#define MIN4(v1,v2,v3,v4) (MIN2(MIN2(MIN2(v1,v2),v3),v4))
#define MAX2(v1,v2) ((v1)>(v2)?(v1):(v2))
#define MAX4(v1,v2,v3,v4) (MAX2(MAX2(MAX2(v1,v2),v3),v4))
double l = MIN4(p1_x,p2_x,p3_x,p4_x);
double t = MIN4(p1_y,p2_y,p3_y,p4_y);
double r = MAX4(p1_x,p2_x,p3_x,p4_x);
double b = MAX4(p1_y,p2_y,p3_y,p4_y);
return Rect (l, t, r-l, b-t);
}
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