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#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <cairo.h>
#include <math.h>
#include "caskbench.h"
#include "kinetics.h"
#include "cairo-shapes.h"
static int element_spacing;
static int num_x_elements;
static int num_y_elements;
static kinetics_t *particles;
const double dashes[] = { 2, 4 };
static int line_length;
static int star_points[11][2] = {
{ 0, 85 },
{ 75, 75 },
{ 100, 10 },
{ 125, 75 },
{ 200, 85 },
{ 150, 125 },
{ 160, 190 },
{ 100, 150 },
{ 40, 190 },
{ 50, 125 },
{ 0, 85 }
};
int
ca_setup_stroke(caskbench_context_t *ctx)
{
cairo_t *cr = ctx->cairo_cr;
line_length = 60;
element_spacing = sqrt( ((double)ctx->canvas_width * ctx->canvas_height) / ctx->size);
num_x_elements = ctx->canvas_width / element_spacing;
num_y_elements = ctx->canvas_height / element_spacing;
cairo_set_line_width(cr,ctx->shape_args.stroke_width?ctx->shape_args.stroke_width:5);
cairo_set_line_cap(cr,ctx->shape_args.cap_style?(cairo_line_cap_t)(ctx->shape_args.cap_style % 3):CAIRO_LINE_CAP_BUTT);
cairo_set_line_join(cr,ctx->shape_args.join_style?(cairo_line_join_t)(ctx->shape_args.join_style % 3):CAIRO_LINE_JOIN_MITER);
cairo_set_dash (cr, dashes, sizeof (dashes) / sizeof (dashes[0]), 0);
return 1;
}
void
ca_teardown_stroke(void)
{
}
static void drawShape(caskbench_context_t *ctx,double x,double y)
{
cairo_t *cr = ctx->cairo_cr;
int i, r,shape,p;
r = 0.9 * element_spacing /2;
if(!ctx->shape_args.shape_id)
shape = ((4.0 * rand())/RAND_MAX) +1;
else
shape = ctx->shape_args.shape_id ;
switch (shape) {
case 1:
// Circle
ctx->shape_args.center_x = x+r;
ctx->shape_args.center_y = y+r;
ctx->shape_args.radius = r;
cairoShapes[Circle](ctx,&ctx->shape_args);
break;
case 2:
// Rectangle
ctx->shape_args.center_x = x;
ctx->shape_args.center_y = y;
ctx->shape_args.width = (ctx->shape_args.width)?ctx->shape_args.width:2*r;
ctx->shape_args.height = (ctx->shape_args.height)?ctx->shape_args.height:2*r;
cairoShapes[Rectangle](ctx,&ctx->shape_args);
break;
case 3:
// Triangle
ctx->shape_args.numpoints = 3;
ctx->shape_args.points = (double (*)[2]) malloc(ctx->shape_args.numpoints*2*(sizeof(double)));
ctx->shape_args.points[0][0] = x;
ctx->shape_args.points[0][1] = y+2*r;
ctx->shape_args.points[1][0] = 2*r;
ctx->shape_args.points[1][1] = 0;
ctx->shape_args.points[2][0] = -r;
ctx->shape_args.points[2][1] = -2*r;
cairoShapes[Triangle] (ctx,&ctx->shape_args);
free (ctx->shape_args.points);
//cairo_fill (cr);
break;
case 4:
// Star
ctx->shape_args.numpoints = 10;
ctx->shape_args.points = (double (*)[2]) malloc(ctx->shape_args.numpoints*2*(sizeof(double)));
for (p = 0; p < 10; p++ ) {
int px = x + 2*r * star_points[p][0]/200.0;
int py = y + 2*r * star_points[p][1]/200.0;
ctx->shape_args.points[p][0] = px;
ctx->shape_args.points[p][1] = py;
}
cairoShapes[Star] (ctx,&ctx->shape_args);
//cairo_fill (cr);
free (ctx->shape_args.points);
break;
default:
break;
}
}
void drawStroke(caskbench_context_t *ctx,kinetics_t *particles)
{
int i, r,j;
int w, h;
double x,y;
cairo_t *cr = ctx->cairo_cr;
for (j=0; j<num_y_elements; j++) {
y = particles?particles->y : j * element_spacing;
cairo_set_line_join(cr,(cairo_line_join_t)(j % 3));
for (i=0; i<num_x_elements; i++) {
x = particles?particles->x : i * element_spacing;
cairo_set_line_cap(cr,(cairo_line_cap_t)(i % 3));
cairoRandomizeColor(ctx);
drawShape(ctx,x,y);
cairo_stroke (cr);
}
}
}
int
ca_test_stroke(caskbench_context_t *ctx)
{
cairo_t *cr = ctx->cairo_cr;
if(ctx->shape_args.animation)
{
int num_particles = ctx->shape_args.animation;
double start_frame, stop_frame, delta;
particles = (kinetics_t *) malloc (sizeof (kinetics_t) * num_particles);
int i,j;
for (i = 0; i < num_particles; i++)
kinetics_init (&particles[i]);
delta = 0;
for (j=0;j<num_particles;j++){
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_rectangle (cr, 0, 0, ctx->canvas_width ,ctx->canvas_height);
cairo_fill (cr);
for (i = 0; i < num_particles; i++) {
kinetics_update(&particles[i], 0.1);
drawStroke(ctx,&particles[i]);
}
}
}
else
//drawStroke(ctx,NULL);
ctx->shape_args.multi_shapes?drawStroke(ctx,NULL):drawShape(ctx,ctx->shape_args.center_x?ctx->shape_args.center_x:100.0,ctx->shape_args.center_y?ctx->shape_args.center_y:100.0);
return 1;
}
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