Add option to capture the focused monitor

include/CursorTracker.hpp

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <optional>
+#include <string>
+#include <mglpp/system/vec.hpp>
+
+namespace gsr {
+    struct CursorInfo {
+        mgl::vec2i position;
+        std::string monitor_name;
+    };
+
+    class CursorTracker {
+    public:
+        CursorTracker() = default;
+        CursorTracker(const CursorTracker&) = delete;
+        CursorTracker& operator=(const CursorTracker&) = delete;
+        virtual ~CursorTracker() = default;
+
+        virtual void update() = 0;
+        virtual std::optional<CursorInfo> get_latest_cursor_info() = 0;
+    };
+}

include/CursorTrackerWayland.hpp

@@ -0,0 +1,43 @@
+#pragma once
+
+#include "CursorTracker.hpp"
+#include <stdint.h>
+#include <vector>
+
+struct wl_display;
+struct wl_registry;
+struct wl_output;
+struct zxdg_output_manager_v1;
+struct zxdg_output_v1;
+
+namespace gsr {
+    struct WaylandOutput {
+        uint32_t wl_name;
+        struct wl_output *output;
+        struct zxdg_output_v1 *xdg_output;
+        mgl::vec2i pos;
+        mgl::vec2i size;
+        int32_t transform;
+        std::string name;
+    };
+
+    class CursorTrackerWayland : public CursorTracker {
+    public:
+        CursorTrackerWayland(const char *card_path);
+        CursorTrackerWayland(const CursorTrackerWayland&) = delete;
+        CursorTrackerWayland& operator=(const CursorTrackerWayland&) = delete;
+        ~CursorTrackerWayland();
+
+        void update() override;
+        std::optional<CursorInfo> get_latest_cursor_info() override;
+
+        std::vector<WaylandOutput> monitors;
+        struct zxdg_output_manager_v1 *xdg_output_manager = nullptr;
+    private:
+        void set_monitor_outputs_from_xdg_output(struct wl_display *dpy);
+    private:
+        int drm_fd = -1;
+        mgl::vec2i latest_cursor_position; // Position of the cursor within the monitor
+        int latest_crtc_id = -1;
+    };
+}

include/CursorTrackerX11.hpp

@@ -0,0 +1,20 @@
+#pragma once
+
+#include "CursorTracker.hpp"
+
+typedef struct _XDisplay Display;
+
+namespace gsr {
+    class CursorTrackerX11 : public CursorTracker {
+    public:
+        CursorTrackerX11(Display *dpy);
+        CursorTrackerX11(const CursorTrackerX11&) = delete;
+        CursorTrackerX11& operator=(const CursorTrackerX11&) = delete;
+        ~CursorTrackerX11() = default;
+
+        void update() override {}
+        std::optional<CursorInfo> get_latest_cursor_info() override;
+    private:
+        Display *dpy = nullptr;
+    };
+}

include/Overlay.hpp

@@ -9,6 +9,7 @@
 #include "GlobalHotkeysJoystick.hpp"
 #include "AudioPlayer.hpp"
 #include "RegionSelector.hpp"
+#include "CursorTracker.hpp"
 
 #include <mglpp/window/Window.hpp>
 #include <mglpp/window/Event.hpp>
@@ -115,6 +116,8 @@ namespace gsr {
         void on_press_take_screenshot(bool finished_region_selection, bool force_region_capture);
         bool update_compositor_texture(const Monitor &monitor);
 
+        std::string get_capture_target(const std::string &capture_target, const SupportedCaptureOptions &capture_options);
+
         void force_window_on_top();
     private:
         using KeyBindingCallback = std::function<void()>;
@@ -205,5 +208,7 @@ namespace gsr {
         RegionSelector region_selector;
         bool start_region_capture = false;
         std::function<void()> on_region_selected;
+
+        std::unique_ptr<CursorTracker> cursor_tracker;
     };
 }

include/WindowUtils.hpp

@@ -15,6 +15,7 @@ namespace gsr {
     struct Monitor {
         mgl::vec2i position;
         mgl::vec2i size;
+        std::string name;
     };
 
     std::optional<std::string> get_window_title(Display *dpy, Window window);