paint

I need a way to for a custom control (descended from TCustomControl) to tell if it is currently visible. I'm not talking about the .Visible property; I mean whether or not it's actually being displayed on-screen at the moment. Does anyone know how to do this? A few years back I had the same kind of problem for a Form: I was looking for a way to determine if a Form is actually visible (even only partially) to the user. In particular when it was supposed to be visible and Showing was True but the window was actually entirely behind another one. Here's the code, it could be adapted for a

I have a custom View that uses Paint and Canvas to draw objects. My question is how to set: int color = R.color.white; paint.setColor(color); from my /res/valuse/color.xml which includes resources like <?xml version="1.0" encoding="utf-8"?> <resources> <color name="white">#FFFFFF</color> <color name="black">#000000</color> ... </resources> Vitali Olshevski int color = ContextCompat.getColor(context, R.color.white); paint.setColor(color); The setColor() method takes a color number as int value, but not a resource id which is an int as well. Hani Hussein Try using color.white : paint.setColor

well, I've managed to fit all my questions in the title. I need to break a long text in to columns/frames and layout them in to view. I've been digging for solutions for a couple of days now, but I can't find any examples or clear documentation on how to complete any of my tasks. I've seen a some mentions of StaticLayout, but I don't know how to use it properly. As for text height I've tried TextPaint's getTextBounds method, but it doesn't have width limit and it looks like it measures only single line (well, maybe I was doing something wrong). Maybe someone has an example of StaticLayout or

I'm working on a test project which is something similar to FingerPaint example in Android SDK Demos. I was trying to implement undo/redo functionality in my project,but the things that I tried didn't work as I expect. I find some questions similar to this over internet and here,but they didn't help me, that's why I'm asking a new question. Here is some idea what I'm doing actually : public class MyView extends View { //private static final float MINP = 0.25f; //private static final float MAXP = 0.75f; private Path mPath; private Paint mBitmapPaint; public MyView(Context c) { super(c); mPath =

I am creating a painting application in Actionscript (although my question is not Actionscript related). The basic idea is to start painting when the mouse is pressed and tracking the mouse movements. What I want to achieve is: reduce mouse "noise" and create more smoother looking lines. Right now, ( 1 ) is problematic because I get thousands of mouse movements within a few seconds. Due to ( 1 ) the line can look jaggy. What current idea: when the user finishes drawing the line, I store all movements in an array and reduce them (median threshold) and then use a spline algorithm to recreate a

I am creating Paths and adding multi lines in each path by using path.moveTo(x, y) and path.lineTo(x, y) . Then canvas.drawPath(path, paint) is drawing all paths. But there are 1-2 pixel space between lines in some paths. How can I remove these spaces? My code is something like that: paint = new Paint(); paint.setColor(Color.RED); paint.setStyle(Paint.Style.FILL_AND_STROKE); paint.setDither(false); paint.setStrokeWidth(3); paint.setAntiAlias(true); for (int i = 0; i < length; i++) { Path path = new Path(); path.moveTo(a, b); path.lineTo(c, d); path.moveTo(c, d); path.lineTo(e, f); canvas