1 files changed, 74 insertions, 0 deletions
diff --git a/somebar/src/bar.hpp b/somebar/src/bar.hpp
new file mode 100644
index 0000000..176a1bc
--- /dev/null
+++ b/somebar/src/bar.hpp
@@ -0,0 +1,74 @@
+// somebar - dwl bar
+// See LICENSE file for copyright and license details.
+
+#pragma once
+#include <optional>
+#include <string>
+#include <vector>
+#include <wayland-client.h>
+#include "wlr-layer-shell-unstable-v1-client-protocol.h"
+#include "common.hpp"
+#include "shm_buffer.hpp"
+
+class BarComponent {
+	std::unique_ptr<std::string> _text;
+public:
+	BarComponent();
+	explicit BarComponent(wl_unique_ptr<PangoLayout> layout);
+	int width() const;
+	void setText(const std::string& text);
+	wl_unique_ptr<PangoLayout> pangoLayout;
+	int x {0};
+};
+
+struct Tag {
+	int state;
+	int numClients;
+	int focusedClient;
+	BarComponent component;
+};
+
+struct Monitor;
+class Bar {
+	static const zwlr_layer_surface_v1_listener _layerSurfaceListener;
+	static const wl_callback_listener _frameListener;
+
+	wl_unique_ptr<wl_surface> _surface;
+	wl_unique_ptr<zwlr_layer_surface_v1> _layerSurface;
+	wl_unique_ptr<PangoContext> _pangoContext;
+	std::optional<ShmBuffer> _bufs;
+	std::vector<Tag> _tags;
+	BarComponent _layoutCmp, _titleCmp, _statusCmp;
+	bool _selected;
+	bool _invalid {false};
+
+	// only vaild during render()
+	cairo_t* _painter {nullptr};
+	int _x;
+	ColorScheme _colorScheme;
+
+	void layerSurfaceConfigure(uint32_t serial, uint32_t width, uint32_t height);
+	void render();
+	void renderTags();
+	void renderStatus();
+
+	// low-level rendering
+	void setColorScheme(const ColorScheme& scheme, bool invert = false);
+	void beginFg();
+	void beginBg();
+	void renderComponent(BarComponent& component);
+	BarComponent createComponent(const std::string& initial = {});
+public:
+	Bar();
+	const wl_surface* surface() const;
+	bool visible() const;
+	void show(wl_output* output);
+	void hide();
+	void setTag(int tag, int state, int numClients, int focusedClient);
+	void setSelected(bool selected);
+	void setLayout(const std::string& layout);
+	void setTitle(const std::string& title);
+	void setStatus(const std::string& status);
+	void invalidate();
+	void click(Monitor* mon, int x, int y, int btn);
+};