Like almost all Javascript functions, drawImage is synchronous, i.e. it’ll only return once it has actually done what it’s supposed to do. That said, what it’s supposed to do, like most other DOM calls, is queue-up lists of things to be repainted next time the browser gets into the event loop. There’s no event you … Read more
Change your ComboBox DrawMode to OwnerDrawVariable. Use the DrawItem event to draw the images from your source (an ImageList, in this case) inside the ComboBox item Bounds. If the ComboBox DropDownStyle is set to DropDownList, the image will be shown in the selection box; if it’s set to DropDown, only the text will be drawn. … Read more
I can get you 10,000 but there are two main drawbacks. You may notice the images don’t respect transparency entirely, its possible to fix.. but that’s beyond the scope of this answer. You will have to use math to do any sort of transformations because the standard canvas transformation matrix can not be applied to … Read more
Your problem is that the image your are trying to draw are svg images, and that these svg documents have relative width and height attributes. The browser can’t set a height nor a width to the image it has to draw, and hence it can’t render it to the canvas. (It is able to do … Read more
You need to modify the transformation matrix before drawing the image that you want rotated. Assume image points to an HTMLImageElement object. var x = canvas.width / 2; var y = canvas.height / 2; var width = image.width; var height = image.height; context.translate(x, y); context.rotate(angleInRadians); context.drawImage(image, -width / 2, -height / 2, width, height); context.rotate(-angleInRadians); … Read more
It is pretty unclear, there’s a lot you didn’t say. The biggest issue with transparency is that you can’t see it. You skipped a couple of steps, you didn’t explicitly specify the pixel format of your new bitmap, you didn’t initialize it at all and you didn’t say what output format you use. Some don’t … Read more
Another approach that does not require extending components. import javax.swing.*; import java.awt.*; import java.awt.image.*; import java.awt.event.ActionListener; import java.awt.event.ActionEvent; import java.util.Random; import java.net.URL; import javax.imageio.ImageIO; public class ImageOnImage { ImageOnImage(final BufferedImage bg, BufferedImage fg) { final BufferedImage scaled = new BufferedImage( fg.getWidth()/2,fg.getHeight()/2,BufferedImage.TYPE_INT_RGB); Graphics g = scaled.getGraphics(); g.drawImage(fg,0,0,scaled.getWidth(),scaled.getHeight(),null); g.dispose(); final int xMax = bg.getWidth()-scaled.getWidth(); final int yMax … Read more