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cab1352801
This starts up the event loop and wayland display and shims out the basic top level rendering concepts. Also includes some changes to incorporate pango into the 1.x codebase properly.
64 lines
2 KiB
C
64 lines
2 KiB
C
#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <wlr/util/log.h>
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#include "cairo.h"
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#include "pango.h"
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#include "pool-buffer.h"
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#include "swaybar/bar.h"
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#include "swaybar/config.h"
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#include "swaybar/render.h"
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#include "wlr-layer-shell-unstable-v1-client-protocol.h"
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static uint32_t render_to_cairo(cairo_t *cairo, struct swaybar *bar,
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struct swaybar_output *output) {
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struct swaybar_config *config = bar->config;
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cairo_save(cairo);
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cairo_set_operator(cairo, CAIRO_OPERATOR_CLEAR);
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cairo_paint(cairo);
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cairo_restore(cairo);
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cairo_set_operator(cairo, CAIRO_OPERATOR_SOURCE);
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if (output->focused) {
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cairo_set_source_u32(cairo, config->colors.focused_background);
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} else {
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cairo_set_source_u32(cairo, config->colors.background);
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}
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cairo_paint(cairo);
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// TODO: use actual height
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return 20;
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}
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void render_frame(struct swaybar *bar,
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struct swaybar_output *output) {
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cairo_surface_t *recorder = cairo_recording_surface_create(
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CAIRO_CONTENT_COLOR_ALPHA, NULL);
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cairo_t *cairo = cairo_create(recorder);
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uint32_t height = render_to_cairo(cairo, bar, output);
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if (height != output->height) {
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// Reconfigure surface
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zwlr_layer_surface_v1_set_size(
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output->layer_surface, 0, height);
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// TODO: this could infinite loop if the compositor assigns us a
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// different height than what we asked for
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wl_surface_commit(output->surface);
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wl_display_roundtrip(bar->display);
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} else {
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// Replay recording into shm and send it off
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output->current_buffer = get_next_buffer(bar->shm,
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output->buffers, output->width, output->height);
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cairo_t *shm = output->current_buffer->cairo;
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cairo_set_source_surface(shm, recorder, 0.0, 0.0);
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cairo_paint(shm);
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wl_surface_attach(output->surface,
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output->current_buffer->buffer, 0, 0);
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wl_surface_damage(output->surface, 0, 0, output->width, output->height);
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wl_surface_commit(output->surface);
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wl_display_roundtrip(bar->display);
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}
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cairo_surface_destroy(recorder);
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cairo_destroy(cairo);
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}
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