1 files changed, 28 insertions, 0 deletions
diff --git a/src/ui.cc b/src/ui.cc
index 3d0e193..858d74c 100644
--- a/src/ui.cc
+++ b/src/ui.cc
@@ -73,6 +73,32 @@ namespace frontend {
         return false;
     }
 
+    void mouseCallback(int event, int x, int y, int flags, void* userdata) {
+        // userdata is actually a &shared_ptr<ui_impl>
+        shared_ptr<ui_impl> data = (shared_ptr<ui_impl>) *userdata;
+        static bool mouseDown = false;
+        // We're interested in left button down/up and movement when down
+        if(event == cv::EVENT_LBUTTONDOWN) {
+            // If the current frame doesn't have a rectangle label, then make one
+            mouseDown = true;
+            double time = data->pb->getTime()
+            auto labs = data->llr->getSurrounding(time);
+            backend::label current;
+            if(labs.first.time == time) {
+                current = labs.first;
+            } else if(labs.second.time == time) {
+                current = labs.second;
+            } else {
+                
+            }
+        } else if(event == cv::EVENT_LBUTTONUP) {
+            // Mouse is no longer down
+            mouseDown = false;
+        } else if(event == cv::EVENT_MOUSEMOVE) {
+            // If the mouse is down, update x2 and y2 of current window
+        }
+    }
+
     void ui::begin() {
         std::cout << "Playing a video that's " << data->pb->getMaxFrame() << " frames (" << data->pb->getMaxTime() << " seconds) long." << std::endl;
         std::cout << "Annotations:" << std::endl;
@@ -84,6 +110,8 @@ namespace frontend {
         struct winsize size;
         ioctl(STDOUT_FILENO, TIOCGWINSZ, &size);
         int cols = size.ws_col;
+        // Register mouse callback
+        cv::setMouseCallback("Video", mouseCallback, &data);
         while(true) {
             data->pb->display("Video");
             data->pb->interFrameSleep();