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#include <cairo/cairo.h>
#include <stdio.h>
#include <stdlib.h>
#include "pool-buffer.h"
#include "render.h"
#include "slurp.h"
static void set_source_u32(cairo_t *cairo, uint32_t color) {
cairo_set_source_rgba(cairo, (color >> (3 * 8) & 0xFF) / 255.0,
(color >> (2 * 8) & 0xFF) / 255.0,
(color >> (1 * 8) & 0xFF) / 255.0,
(color >> (0 * 8) & 0xFF) / 255.0);
}
static void draw_rect(cairo_t *cairo, struct slurp_box *box, uint32_t color) {
set_source_u32(cairo, color);
cairo_rectangle(cairo, box->x, box->y,
box->width, box->height);
}
static void box_layout_to_output(struct slurp_box *box, struct slurp_output *output) {
box->x -= output->logical_geometry.x;
box->y -= output->logical_geometry.y;
}
void render(struct slurp_output *output) {
struct slurp_state *state = output->state;
struct pool_buffer *buffer = output->current_buffer;
cairo_t *cairo = buffer->cairo;
// Clear
cairo_set_operator(cairo, CAIRO_OPERATOR_SOURCE);
set_source_u32(cairo, state->colors.background);
cairo_paint(cairo);
// Draw option boxes from input
struct slurp_box *choice_box;
wl_list_for_each(choice_box, &state->boxes, link) {
if (box_intersect(&output->logical_geometry,
choice_box)) {
struct slurp_box b = *choice_box;
box_layout_to_output(&b, output);
draw_rect(cairo, &b, state->colors.choice);
cairo_fill(cairo);
}
}
struct slurp_seat *seat;
wl_list_for_each(seat, &state->seats, link) {
struct slurp_selection *current_selection =
slurp_seat_current_selection(seat);
if (!current_selection->has_selection) {
continue;
}
if (!box_intersect(&output->logical_geometry,
¤t_selection->selection)) {
continue;
}
struct slurp_box b = current_selection->selection;
box_layout_to_output(&b, output);
draw_rect(cairo, &b, state->colors.selection);
cairo_fill(cairo);
// Draw border
cairo_set_line_width(cairo, state->border_weight);
draw_rect(cairo, &b, state->colors.border);
cairo_stroke(cairo);
if (state->display_dimensions) {
cairo_select_font_face(cairo, state->font_family,
CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size(cairo, 14);
set_source_u32(cairo, state->colors.border);
// buffer of 12 can hold selections up to 99999x99999
char dimensions[12];
snprintf(dimensions, sizeof(dimensions), "%ix%i",
b.width, b.height);
cairo_move_to(cairo, b.x + b.width + 10,
b.y + b.height + 20);
cairo_show_text(cairo, dimensions);
}
}
}
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