Android Open Source - minecraft-connect-4 Mc Button

From Project

Back to project page minecraft-connect-4.
License

The source code is released under:
MIT License
If you think the Android project minecraft-connect-4 listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

/* COPYRIGHT (C) 2014 Aleksandr Belkin. All Rights Reserved. */
package sq.squ1rr.mcc4.layout;
// w  w  w  .  ja  v a 2 s .c om
import sq.squ1rr.mcc4.R;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Paint.Align;
import android.graphics.Paint.Style;
import android.graphics.Shader;
import android.graphics.drawable.BitmapDrawable;
import android.widget.Button;

/**
 * Base class for Minecraft-looking buttons.
 * @author Aleksandr Belkin
 */
public class McButton extends Button {
    /** background image */
    private static Bitmap backgroundImage = null;
    
    /** stroke paint */
    private Paint stroke = new Paint();
    
    /** fill paint */
    private Paint fill = new Paint();
    
    /** text font and style */
    private Paint text = new Paint();
    
    /** background image */
    private BitmapDrawable background = null;

    /**
     * Initialise button and its members
     * @param context
     */
    public McButton(Context context) {
        super(context);
        initialise();
    }
    
    /**
     * Initialise members (both static and local)
     * @param context
     */
    private void initialise() {
        // stroke paint
        stroke.setStyle(Style.STROKE);
        stroke.setStrokeWidth(McStyle.getButtonUnit(getContext()));
        
        // fill paint
        fill.setStyle(Style.FILL);

        // text paint
        text.setTextAlign(Align.CENTER);
        text.setTypeface(McStyle.getFont(getContext()));
        text.setTextSize(McStyle.getTextSize(getContext()));
        
        // initialise background
        if(backgroundImage == null) {
            backgroundImage = BitmapFactory.decodeResource(
                    getResources(), R.drawable.button_background
            );
        }
        background = new BitmapDrawable(getResources(), backgroundImage);
        background.setTileModeXY(
                Shader.TileMode.REPEAT,
                Shader.TileMode.REPEAT
        );
    }
    
    /*
     * (non-Javadoc)
     * @see android.widget.TextView#onDraw(android.graphics.Canvas)
     */
    @Override
    protected void onDraw(Canvas canvas) {
        int borderWidth = McStyle.getButtonUnit(getContext());
        int halfBorder = borderWidth / 2;
        int textOffset = 0; // on enabled button text should be a bit upper
        
        // draw button background
        background.setBounds(0, 0, this.getWidth(), this.getHeight());
        background.draw(canvas);
        
        // border
        stroke.setColor(McStyle.BUTTON_COLOUR_BORDER);
        canvas.drawRect(
                halfBorder,
                halfBorder,
                this.getWidth() - halfBorder,
                this.getHeight() - halfBorder, 
                stroke
        );
        
        if(isEnabled()) {
            int borderOffset = borderWidth + (halfBorder);
            textOffset = borderOffset;
            
            // highlight
            stroke.setColor(McStyle.BUTTON_COLOUR_HIGHLIGHT);
            
            // draw left highlight
            canvas.drawLine(
                    borderOffset, borderWidth,
                    borderOffset, this.getHeight() - borderWidth,
                    stroke
            );
            
            // draw upper highlight
            canvas.drawLine(
                    borderWidth * 2, borderOffset,
                    this.getWidth() - borderWidth, borderOffset,
                    stroke
            );
            
            // darken
            stroke.setColor(McStyle.BUTTON_COLOUR_DARKEN);
            fill.setColor(McStyle.BUTTON_COLOUR_DARKEN);
            
            // draw right darken
            canvas.drawLine(
                    this.getWidth() - borderOffset,
                    borderWidth,
                    this.getWidth() - borderOffset,
                    this.getHeight() - borderWidth,
                    stroke
            );
            
            // draw bottom darken            
            canvas.drawRect(
                    borderWidth,
                    this.getHeight() - borderWidth * 4,
                    this.getWidth() - borderWidth * 2,
                    this.getHeight() - borderWidth,
                    fill
            );
            
            if(isPressed()) {
                fill.setColor(McStyle.BUTTON_OVERLAY_SELECTED);
                canvas.drawPaint(fill);
            }
        } else { // if disabled
            fill.setColor(McStyle.BUTTON_OVERLAY_DISABLED);
            canvas.drawPaint(fill);
        }
        
        // draw text
        int xPos = this.getWidth() / 2;
        int yPos = (int)(this.getHeight() / 2 - (
                (text.descent() + text.ascent()) / 2)) - textOffset;
        
        String label = getText().toString();
        
        // shadow
        text.setColor(McStyle.TEXT_SHADOW_COLOUR);
        canvas.drawText(label, xPos + borderWidth, yPos + borderWidth, text);
        
        // normal
        if(isPressed()) text.setColor(McStyle.TEXT_COLOUR_SELECTED);
        else text.setColor(McStyle.TEXT_COLOUR_BUTTON);
        canvas.drawText(label, xPos, yPos, text);
    }

}
Java Source Code List
