labwc/include/common/graphic-helpers.h

45 lines
1.3 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
#include <wayland-server-core.h>
struct wlr_scene_tree;
struct wlr_scene_rect;
struct multi_rect {
struct wlr_scene_tree *tree;
int line_width; /* read-only */
/* Private */
struct wlr_scene_rect *top[3];
struct wlr_scene_rect *bottom[3];
struct wlr_scene_rect *left[3];
struct wlr_scene_rect *right[3];
struct wl_listener destroy;
};
/**
* Create a new multi_rect.
* A multi_rect consists of 3 nested rectangular outlines.
* Each of the rectangular outlines is using the same @line_width
* but its own color based on the @colors argument.
*
* The multi-rect can be positioned by positioning multi_rect->tree->node.
*
* It can be destroyed by destroying its tree node (or one of its
* parent nodes). Once the tree node has been destroyed the struct
* will be free'd automatically.
*/
struct multi_rect *multi_rect_create(struct wlr_scene_tree *parent,
float *colors[3], int line_width);
void multi_rect_set_size(struct multi_rect *rect, int width, int height);
/**
* Sets the cairo color.
* Splits a float[4] single color array into its own arguments
*/
void set_cairo_color(cairo_t *cairo, float *color);
/* Draws a border with a specified line width */
void draw_cairo_border(cairo_t *cairo, double width, double height,
double line_width);