+ [task#127425] add listening event after render.

2024-09-09 14:00:20 +08:00
parent dd8d0f2701
commit 7836804756
1 changed files with 16 additions and 0 deletions
@@ -20,6 +20,22 @@ $(document).ready(function()
        const binarizeImageUrl = canvas.toDataURL();
        colorRegions(binarizeImageUrl).then((data) => {
            displayColoredImage(data.image);
+            const coloredRegions = data.regions;
+            const pixelData      = data.pixelData;
+
+            /* 点击画布外区域取消高亮。*/
+            /* Click on the area outside the canvas to unhighlight.*/
+            $(document).on('click', function(event)
+            {
+                const rect  = canvas.getBoundingClientRect();
+                let canvasX = rect.left;
+                let canvasY = rect.top;
+                let mouseX  = event.pageX;
+                let mouseY  = event.pageY;
+
+                /* 恢复整个画布的原始状态。 */
+                ctx.putImageData(pixelData, 0, 0);
+            });
        });
    };