int main() {
/**********************************
* 1 - Criar papel e caneta cairo *
**********************************/
Drawer * cairo = DrawerInit(800, 600, 0, "result.pdf");
/****************
* 2 - Desenhar *
****************/
Rectangle base = {0, //x
0, //y
800, //width
600, //height
0.0, // borderWidth
{1.0, 1.0, 1.0, 1.0},// Color Bg
{0.0, 0.0, 0.0, 0.0}// Color border (borderless)
};
DrawerDrawRectangle(cairo, base);
/*cairo_rectangle (cairo->context, 0, 0, 800, 600);
cairo_set_source_rgb(cairo->context, 1.0, 1.0, 1.0);
cairo_fill(cairo->context);*/
Rectangle rect = {400-100, //x - altura/2
300-100, //y - largura/2
200, //width
200, //height
10.0, // borderWidth
{1.0, 1.0, 1.0, 1.0}, // Color Bg
{0.0, 0.0, 1.0, 1.0} // Color border
};
DrawerDrawRectangle(cairo, rect);
/*cairo_rectangle (cairo->context, 400 - 50, 300 - 50, 100, 100);
cairo_set_source_rgb(cairo->context, 1.0, 0.0, 0.0);
cairo_fill_preserve(cairo->context);
cairo_set_source_rgba(cairo->context, 1.0, 1.0, 0.0, 1.0);
cairo_stroke(cairo->context);*/
/*cairo_set_source_rgb(cairo->context, 0.0, 0.0, 0.0);
cairo_arc (cairo->context, 400, 300, 2, 0, 2* M_PI);
cairo_fill(cairo->context);*/
Arc arc = {400, //x
300, //y
0, //initAngle
1*2*M_PI, //endAngle
50, //radius
5.0, // borderWidth
{1.0, 0.0, 1.0, 1.0}, // Color Bg
{0.5, 1.0, 1.0, 1.0} // Color border
};
DrawerDrawArc(cairo, arc);
/*************************
* 3 - Salvar em arquivo *
*************************/
cairo_surface_write_to_png(cairo->surface, "test.png");
/******************************
* 4 - Deletar caneta e papel *
******************************/
DrawerDestroy(cairo);
cairo = 0;
return 0;
}
void pizza(Drawer * drawer, Chart * chart, Rectangle base) {
Color rcolor;
float initAngle = 0.0;
int i;
char str[20] = "";
for(i = 0; chart->content[i] != 0; ++i) {
float perc = chart->content[i]->percentage;
randColor(&rcolor);//Função que randomiza os números responsáveis pelas cores
percToText(perc*100,str);//Função que transforma a porcentagem em string
Arc arc = {
base.width/3, //x
base.height/2, //y
initAngle, //initAngle
perc*2*M_PI+initAngle, //endAngle
200, //radius
0.5, // borderWidth
{rcolor.r, rcolor.g, rcolor.b, 1.0}, // Color Bg
{1.0,1.0,1.0, 1.0} // Color border
};
Rectangle rectPerc = {
2*base.width/3, //x
4*base.height/10 + 35*i, //y
60,//width
30, //height
1.0, // borderWidth
{rcolor.r, rcolor.g, rcolor.b, 1.0}, // Color Bg
{1.0,1.0,1.0, 1.0}// Color border
};
Text text = {
2*rectPerc.height/3,//Font Size
3*base.width/4 ,//X
4*base.height/10 + rectPerc.height/2,//Y
chart->content[i]->label ,//Label
str,//Percentage(String Form)
1.4,//BorderWidth
rectPerc.y - 4*base.height/10,//Space Legend
-5,//Space Percentage
2*base.width/3 + rectPerc.width/4,//Coordenada X da porcentagem
4*base.height/10 + rectPerc.height/2,//Coordenada Y da porcentagem
0,//Se 1 = Retangulo
1,//Se 1 = Arco
{0.0,0.0,0.0,1.0},//Color Bg
{rcolor.r, rcolor.g, rcolor.b, 1.0},//Color Border
{1.0,1.0,1.0,1.0}//Color of Percentage
};
DrawerDrawRectangle(drawer, rectPerc);
if(perc == 1.0) {//Se o gráfico de pizza tiver somente um parâmetro (100%), excluir a borda
arc.border.a = 0.0;
}
DrawerDrawArc(drawer, arc);
DrawerDrawText(drawer, text, base);
initAngle += chart->content[i]->percentage*2*M_PI;
}
}
