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#include "render.h"
#include <wlc/wlc-render.h>
#include <cairo/cairo.h>
#include <stdlib.h>
#include <stdio.h>
#include "container.h"
void cairo_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);
}
cairo_t *create_border_buffer(swayc_t *view, struct wlc_geometry geo,
cairo_surface_t **surface) {
const int channels = 4;
cairo_t *cr;
view->border_geometry = geo;
view->border = calloc(channels * geo.size.w * geo.size.h,
sizeof(unsigned char));
if (!view->border) {
sway_log(L_DEBUG, "Unable to allocate buffer");
return NULL;
}
*surface = cairo_image_surface_create_for_data(view->border,
CAIRO_FORMAT_ARGB32, geo.size.w, geo.size.h, channels * geo.size.w);
if (cairo_surface_status(*surface) != CAIRO_STATUS_SUCCESS) {
free(view->border);
view->border = NULL;
sway_log(L_DEBUG, "Unable to allocate surface");
return NULL;
}
cr = cairo_create(*surface);
if (cairo_status(cr) != CAIRO_STATUS_SUCCESS) {
cairo_surface_destroy(*surface);
free(view->border);
view->border = NULL;
sway_log(L_DEBUG, "Unable to create cairo context");
return NULL;
}
return cr;
}
void update_view_border(swayc_t *view) {
struct wlc_geometry geo;
wlc_view_get_visible_geometry(view->handle, &geo);
cairo_t *cr = NULL;
cairo_surface_t *surface = NULL;
if (view->border) {
free(view->border);
view->border = NULL;
}
switch (view->border_type) {
case B_NONE:
view->border_geometry = geo;
break;
case B_PIXEL:
geo.origin.x -= view->border_thickness;
geo.origin.y -= view->border_thickness;
geo.size.w += view->border_thickness * 2;
geo.size.h += view->border_thickness * 2;
if (geo.size.w <= 0 || geo.size.h <= 0) {
view->border = NULL;
break;
}
cr = create_border_buffer(view, geo, &surface);
if (!cr) {
break;
}
cairo_set_source_u32(cr, 0x0000FFFF);
cairo_paint(cr);
break;
case B_NORMAL:
// TODO
break;
}
if (surface) {
cairo_surface_flush(surface);
cairo_surface_destroy(surface);
}
if (cr) {
cairo_destroy(cr);
sway_log(L_DEBUG, "Created border for %p (%dx%d+%d,%d)", view,
geo.size.w, geo.size.h, geo.origin.x, geo.origin.y);
}
view->border_geometry = geo;
}
void render_view_borders(wlc_handle view) {
swayc_t *c = swayc_by_handle(view);
if (!c || c->border_type == B_NONE) {
return;
}
struct wlc_geometry geo;
wlc_view_get_visible_geometry(view, &geo);
if (geo.size.w != c->presumed_geometry.size.w
|| geo.size.h != c->presumed_geometry.size.h
|| geo.origin.x != c->presumed_geometry.origin.x
|| geo.origin.y != c->presumed_geometry.origin.y) {
update_view_border(c);
c->presumed_geometry = geo;
}
if (c->border) {
geo = c->border_geometry;
sway_log(L_DEBUG, "Rendering border for %p (%dx%d+%d,%d)", c,
geo.size.w, geo.size.h, geo.origin.x, geo.origin.y);
wlc_pixels_write(WLC_RGBA8888, &c->border_geometry, c->border);
}
}
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