/**
* @example enesim_renderer_path07.c
* Example usage of a path renderer
* @image html enesim_renderer_path07.png
*/
Enesim_Renderer * enesim_example_renderer_renderer_get(
Enesim_Example_Renderer_Options *options)
{
Enesim_Renderer *r;
Enesim_Matrix m;
Enesim_Path *p;
r = enesim_renderer_path_new();
enesim_renderer_shape_stroke_color_set(r, 0xff000000);
enesim_renderer_shape_stroke_weight_set(r, 0.1);
enesim_renderer_shape_draw_mode_set(r, ENESIM_RENDERER_SHAPE_DRAW_MODE_STROKE);
p = enesim_renderer_path_path_get(r);
enesim_path_move_to(p, 0.3, 0.3);
enesim_path_cubic_to(p, 0.6, 1.1, 1.0, 0.9, 1.4, 0.3);
enesim_path_unref(p);
enesim_matrix_scale(&m, options->width/2, options->height/2);
enesim_renderer_transformation_set(r, &m);
return r;
}
EAPI Enesim_Renderer *
echart_line_renderer_get(const Echart_Line *line)
{
const Echart_Chart *chart;
const Echart_Data *data;
const Echart_Data_Item *absciss;
const Echart_Data_Item *item;
Enesim_Renderer *c;
Enesim_Renderer *r;
Enesim_Renderer *r_first;
Enesim_Renderer_Compound_Layer *l;
Enesim_Text_Font *f;
Enesim_Text_Engine *e;
Enesim_Rectangle geom;
Enesim_Path *p;
Enesim_Color color;
Eina_Rectangle rect_first;
Eina_Rectangle rect;
const char *title;
double avmin;
double avmax;
int grid_x_nbr;
int grid_y_nbr;
int sub_grid_x_nbr;
int sub_grid_y_nbr;
int x_area;
int y_area;
int w_area;
int h_area;
int w;
int h;
unsigned int i;
unsigned int j;
if (!line)
return NULL;
chart = line->chart;
if (line->stacked)
data = echart_data_stacked_get(echart_chart_data_get(chart));
else
data = echart_chart_data_get(chart);
if (!data)
{
ERR("A chart must have at least a data");
return NULL;
}
if (echart_data_items_count(data) < 2)
{
ERR("Data must have at least 2 items");
return NULL;
}
echart_chart_size_get(chart, &w, &h);
c = enesim_renderer_compound_new();
e = enesim_text_engine_default_get();
f = enesim_text_font_new_description_from(e, "arial", 16);
enesim_text_engine_unref(e);
/* background */
r = enesim_renderer_rectangle_new();
enesim_renderer_rectangle_position_set(r, 0, 0);
enesim_renderer_rectangle_size_set(r, w, h);
enesim_renderer_shape_fill_color_set(r, echart_chart_background_color_get(chart));
enesim_renderer_shape_draw_mode_set(r, ENESIM_RENDERER_SHAPE_DRAW_MODE_FILL);
l = enesim_renderer_compound_layer_new();
enesim_renderer_compound_layer_renderer_set(l, r);
enesim_renderer_compound_layer_rop_set(l, ENESIM_ROP_FILL);
enesim_renderer_compound_layer_add(c, l);
/* title */
h_area = 0;
title = echart_data_title_get(data);
if (title)
{
r = enesim_renderer_text_span_new();
enesim_renderer_color_set(r, 0xff000000);
enesim_renderer_text_span_text_set(r, title);
enesim_renderer_text_span_font_set(r, f);
enesim_renderer_shape_destination_geometry_get(r, &geom);
enesim_renderer_origin_set(r, (w - geom.w) / 2, 0);
enesim_rectangle_normalize(&geom, &rect);
h_area = rect.h;
ECHART_RENDERER_LAYER_ADD(c, l, r);
}
/* abscisses */
absciss = echart_data_absciss_get(data);
echart_data_item_interval_get(absciss, &avmin, &avmax);
r_first = _echart_line_text_renderer_from_double(f, *(double *)eina_list_nth(echart_data_item_values_get(absciss), 0));
enesim_renderer_shape_destination_geometry_get(r_first, &geom);
enesim_renderer_origin_set(r_first, 0, h - geom.h);
enesim_rectangle_normalize(&geom, &rect_first);
x_area = rect_first.w / 2 + 1;
y_area = rect_first.h;
ECHART_RENDERER_LAYER_ADD(c, l, r_first);
r = _echart_line_text_renderer_from_double(f, *(double *)eina_list_nth(echart_data_item_values_get(absciss), eina_list_count(echart_data_item_values_get(absciss)) - 1));
enesim_renderer_shape_destination_geometry_get(r, &geom);
enesim_renderer_origin_set(r, w - geom.w, h - geom.h);
enesim_rectangle_normalize(&geom, &rect);
w_area = w - (rect_first.w + rect.w) / 2;
if (y_area < rect.h)
y_area = rect.h;
ECHART_RENDERER_LAYER_ADD(c, l, r);
for (i = 1; i < eina_list_count(echart_data_item_values_get(absciss)) - 1; i++)
{
double d1;
r = _echart_line_text_renderer_from_double(f, *(double *)eina_list_nth(echart_data_item_values_get(absciss), i));
d1 = *(double *)eina_list_nth(echart_data_item_values_get(absciss), i);
d1 = x_area + w_area * (d1 - avmin) / (avmax - avmin);
enesim_renderer_shape_destination_geometry_get(r, &geom);
enesim_renderer_origin_set(r, d1 - geom.w / 2, h - geom.h);
enesim_rectangle_normalize(&geom, &rect);
if (y_area < rect.h)
y_area = rect.h;
ECHART_RENDERER_LAYER_ADD(c, l, r);
}
h_area = h - y_area - h_area;
/* grid */
echart_chart_grid_nbr_get(chart, &grid_x_nbr, &grid_y_nbr);
for (i = 0; i < (unsigned int)grid_x_nbr; i++)
{
r = enesim_renderer_line_new();
enesim_renderer_line_coords_set(r,
x_area + (i * w_area) / (double)(grid_x_nbr - 1), h - y_area,
x_area + (i * w_area) / (double)(grid_x_nbr - 1), h - h_area - y_area);
enesim_renderer_shape_stroke_weight_set(r, 1);
if (i == 0)
enesim_renderer_shape_stroke_color_set(r, 0xff000000);
else
enesim_renderer_shape_stroke_color_set(r, echart_chart_grid_color_get(chart));
enesim_renderer_shape_draw_mode_set(r, ENESIM_RENDERER_SHAPE_DRAW_MODE_STROKE);
ECHART_RENDERER_LAYER_ADD(c, l, r);
}
for (i = 0; i < (unsigned int)grid_y_nbr; i++)
{
r = enesim_renderer_line_new();
enesim_renderer_line_coords_set(r,
x_area + 1, h - y_area - (i * h_area) / (double)(grid_y_nbr - 1),
x_area + w_area, h - y_area - (i * h_area) / (double)(grid_y_nbr - 1));
enesim_renderer_shape_stroke_weight_set(r, 1);
if (i == 0)
enesim_renderer_shape_stroke_color_set(r, 0xff000000);
else
enesim_renderer_shape_stroke_color_set(r, echart_chart_grid_color_get(chart));
enesim_renderer_shape_draw_mode_set(r, ENESIM_RENDERER_SHAPE_DRAW_MODE_STROKE);
ECHART_RENDERER_LAYER_ADD(c, l, r);
}
/* sub grid */
echart_chart_sub_grid_nbr_get(chart, &sub_grid_x_nbr, &sub_grid_y_nbr);
for (i = 0; i < (unsigned int)grid_x_nbr; i++)
{
for (j = 1; (int)j < (sub_grid_x_nbr - 1); j++)
{
p = enesim_path_new();
enesim_path_move_to(p, x_area + w_area * (j + i * (sub_grid_x_nbr - 1)) / (double)((grid_x_nbr - 1) * (sub_grid_x_nbr - 1)), h - h_area - y_area + 1);
enesim_path_line_to(p, x_area + w_area * (j + i * (sub_grid_x_nbr - 1)) / (double)((grid_x_nbr - 1) * (sub_grid_x_nbr - 1)), h - y_area);
r = enesim_renderer_path_new();
enesim_renderer_path_path_set(r, p);
enesim_renderer_shape_stroke_weight_set(r, 1);
enesim_renderer_shape_stroke_dash_add_simple(r, 10, 8);
enesim_renderer_shape_stroke_color_set(r, echart_chart_sub_grid_color_get(chart));
enesim_renderer_shape_draw_mode_set(r, ENESIM_RENDERER_SHAPE_DRAW_MODE_STROKE);
ECHART_RENDERER_LAYER_ADD(c, l, r);
}
}
for (i = 0; i < (unsigned int)grid_y_nbr; i++)
{
for (j = 1; (int)j < (sub_grid_y_nbr - 1); j++)
{
p = enesim_path_new();
enesim_path_move_to(p, x_area + 1, h - y_area - h_area * (j + i * (sub_grid_y_nbr - 1)) / (double)((grid_y_nbr - 1) * (sub_grid_y_nbr - 1)));
enesim_path_line_to(p, x_area + w_area, h - y_area - h_area * (j + i * (sub_grid_y_nbr - 1)) / (double)((grid_y_nbr - 1) * (sub_grid_y_nbr - 1)));
r = enesim_renderer_path_new();
enesim_renderer_path_path_set(r, p);
enesim_renderer_shape_stroke_weight_set(r, 1);
enesim_renderer_shape_stroke_dash_add_simple(r, 10, 8);
enesim_renderer_shape_stroke_color_set(r, echart_chart_sub_grid_color_get(chart));
enesim_renderer_shape_draw_mode_set(r, ENESIM_RENDERER_SHAPE_DRAW_MODE_STROKE);
ECHART_RENDERER_LAYER_ADD(c, l, r);
}
}
/* area */
if (line->area)
{
for (j = 1; j < echart_data_items_count(data); j++)
{
double vmin;
double vmax;
double d1;
double d2;
uint8_t ca, cr, cg, cb;
item = echart_data_items_get(data, j);
echart_data_item_interval_get(item, &vmin, &vmax);
p = enesim_path_new();
enesim_path_move_to(p, x_area + 1, h - y_area);
for (i = 0; i < eina_list_count(echart_data_item_values_get(item)); i++)
{
d1 = *(double *)eina_list_nth(echart_data_item_values_get(absciss), i);
d1 = x_area + 1 + (w_area - 1) * (d1 - avmin) / (avmax - avmin);
d2 = *(double *)eina_list_nth(echart_data_item_values_get(item), i);
d2 = (h_area - 1) * (d2 - vmin) / (vmax - vmin);
enesim_path_line_to(p, d1, h - y_area - d2);
}
enesim_path_line_to(p, x_area + w_area, h - y_area);
enesim_path_close(p);
r = enesim_renderer_path_new();
enesim_renderer_path_path_set(r, p);
enesim_argb_components_to(echart_data_item_color_get(item).area, &ca, &cr, &cg, &cb);
ca = 220;
enesim_color_components_from(&color, ca, cr, cg, cb);
enesim_renderer_shape_fill_color_set(r, color);
enesim_renderer_shape_draw_mode_set(r, ENESIM_RENDERER_SHAPE_DRAW_MODE_FILL);
ECHART_RENDERER_LAYER_ADD(c, l, r);
}
}
/* line */
for (j = 1; j < echart_data_items_count(data); j++)
{
double vmin;
double vmax;
double d1;
double d2;
item = echart_data_items_get(data, j);
echart_data_item_interval_get(item, &vmin, &vmax);
printf("\n%d %f %f\n\n", j, vmin, vmax);
p = enesim_path_new();
for (i = 0; i < eina_list_count(echart_data_item_values_get(item)); i++)
{
d1 = *(double *)eina_list_nth(echart_data_item_values_get(absciss), i);
d1 = x_area + 1 + (w_area - 1) * (d1 - avmin) / (avmax - avmin);
d2 = *(double *)eina_list_nth(echart_data_item_values_get(item), i);
d2 = h_area * (d2) / (vmax);
if (i == 0)
enesim_path_move_to(p, d1, h - y_area - d2);
else
enesim_path_line_to(p, d1, h - y_area - d2);
printf("%d %d %f\n", j, i, h - y_area - d2);
}
r = enesim_renderer_path_new();
enesim_renderer_path_path_set(r, p);
enesim_renderer_shape_stroke_weight_set(r, 1);
enesim_renderer_shape_stroke_color_set(r, echart_data_item_color_get(item).line);
enesim_renderer_shape_draw_mode_set(r, ENESIM_RENDERER_SHAPE_DRAW_MODE_STROKE);
ECHART_RENDERER_LAYER_ADD(c, l, r);
}
return c;
}
#include "enesim_example_renderer.h"
/**
* @example enesim_renderer_path03.c
* Example usage of a path renderer
* @image html enesim_renderer_path03.png
*/
Enesim_Renderer * enesim_example_renderer_renderer_get(Enesim_Example_Renderer_Options *options EINA_UNUSED)
{
Enesim_Renderer *r;
Enesim_Path *p;
p = enesim_path_new();
enesim_path_move_to(p, 50, 50);
enesim_path_line_to(p, 150, 150);
enesim_path_line_to(p, 50, 150);
enesim_path_line_to(p, 150, 50);
enesim_path_line_to(p, 50, 50);
r = enesim_renderer_path_new();
enesim_renderer_path_path_set(r, p);
enesim_renderer_shape_stroke_weight_set(r, 18);
enesim_renderer_shape_stroke_color_set(r, 0xffffff00);
enesim_renderer_shape_fill_color_set(r, 0xffff0000);
enesim_renderer_shape_draw_mode_set(r, ENESIM_RENDERER_SHAPE_DRAW_MODE_STROKE_FILL);
return r;
}
