My latest project involves creating a paint brush application using the Canvas Tag. I successfully changed the cursor when the mouse hovers over the canvas:
<canvas id="draw" style="cursor: url(image/pencil.cur)">
However, I am now faced with the challenge of changing the cursor while dragging the mouse to draw the image. Any suggestions on how to achieve this?
Implement the :active CSS pseudo-class to modify the cursor appearance when the mouse button is pressed over the element:
#draw:active {
cursor: url(image/pencil.cur);
}
To see it in action, check out this example: http://jsfiddle.net/nXv63/
If you're still trying to resolve the webkit bug, I found a solution here: . Here's what worked for me:
To prevent text selection on my webpage, I simply added these properties to the body element:
body {
-webkit-touch-callout: none;
-webkit-user-select: none;
-moz-user-select: none;
user-select: none;
}
Keep in mind that if there are specific elements you need to be selectable, you'll have to adjust their CSS accordingly.
There are two different methods I have in mind that could help you achieve your goal:
One option is to use JavaScript to change the cursor using a jQuery snippet like this:
$('canvas#draw').css('cursor', 'url(image/another-cursor.cur)');
If you implement this within the mouse button press event and restore the original cursor upon release, it should provide the desired effect.
Alternatively, you could draw the "cursor" directly on the canvas itself and make it follow the mouse position. This approach would allow you to create a Photoshop-style indicator for painting. While I haven't tested this method for performance, utilizing the mouse move event for the canvas (presumably already used for tracking paint placement) should work well.
Apply a class called "dragging" to the canvas while the dragging function is active (and remove it when the mouse button is released)
Next, include the following CSS style:
canvas {cursor: default;}
canvas.dragging {cursor: crosshair;}
Functioning perfectly on this end: http://jsfiddle.net/Unique_Robot/GPXLY/1/
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