Update status from pipe

This commit is contained in:
Raphael Robatsch 2021-10-22 16:52:04 +02:00
parent 9c08a11b32
commit 58d004ec59
3 changed files with 34 additions and 1 deletions

View file

@ -13,6 +13,13 @@ const zwlr_layer_surface_v1_listener Bar::_layerSurfaceListener = {
static_cast<Bar*>(owner)->layerSurfaceConfigure(serial, width, height);
}
};
const wl_callback_listener Bar::_frameListener = {
[](void *owner, wl_callback *cb, uint32_t)
{
static_cast<Bar*>(owner)->render();
wl_callback_destroy(cb);
}
};
static QFont getFont()
{
@ -53,6 +60,21 @@ Bar::~Bar()
zwlr_layer_surface_v1_destroy(_layerSurface);
}
void Bar::invalidate()
{
if (_invalid) return;
_invalid = true;
auto frame = wl_surface_frame(_surface);
wl_callback_add_listener(frame, &_frameListener, this);
wl_surface_commit(_surface);
}
void Bar::setStatus(const QString &status)
{
_status = status;
invalidate();
}
void Bar::layerSurfaceConfigure(uint32_t serial, uint32_t width, uint32_t height)
{
zwlr_layer_surface_v1_ack_configure(_layerSurface, serial);
@ -83,8 +105,10 @@ void Bar::render()
_painter = nullptr;
wl_surface_attach(_surface, _bufs->buffer(), 0, 0);
wl_surface_damage(_surface, 0, 0, INT_MAX, INT_MAX);
wl_surface_commit(_surface);
_bufs->flip();
_invalid = false;
}
void Bar::setColorScheme(const ColorScheme &scheme)

View file

@ -19,6 +19,7 @@ struct Tag {
class Bar {
static const zwlr_layer_surface_v1_listener _layerSurfaceListener;
static const wl_callback_listener _frameListener;
wl_surface *_surface {nullptr};
zwlr_layer_surface_v1 *_layerSurface {nullptr};
@ -27,6 +28,7 @@ class Bar {
QFontMetrics _fontMetrics;
std::optional<ShmBuffer> _bufs;
int _textY, _x;
bool _invalid {false};
std::vector<Tag> _tags;
QString _windowTitle;
@ -39,7 +41,9 @@ class Bar {
void renderText(const QString &text);
int textWidth(const QString &text);
void setColorScheme(const ColorScheme &scheme);
void invalidate();
public:
explicit Bar(const wl_output *output);
void setStatus(const QString &status);
~Bar();
};

View file

@ -9,6 +9,7 @@
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <optional>
#include <QGuiApplication>
#include <QSocketNotifier>
#include <wayland-client.h>
@ -28,6 +29,7 @@ wl_display *display;
wl_compositor *compositor;
wl_shm *shm;
zwlr_layer_shell_v1 *wlrLayerShell;
static std::optional<Bar> bar;
static std::string statusFifoName;
static int statusFifoFd {-1};
static int statusFifoWriter {-1};
@ -48,7 +50,7 @@ static void onReady()
requireGlobal(shm, "wl_shm");
requireGlobal(wlrLayerShell, "zwlr_layer_shell_v1");
setupStatusFifo();
std::ignore = new Bar(nullptr);
bar.emplace(nullptr);
}
static void setupStatusFifo()
@ -89,6 +91,9 @@ static void onStatus()
char buffer[512];
auto n = read(statusFifoFd, buffer, sizeof(buffer));
auto str = QString::fromUtf8(buffer, n);
if (bar) {
bar->setStatus(str);
}
}
struct HandleGlobalHelper {