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https://github.com/oxen-io/session-android.git
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@ -22,6 +22,7 @@ import android.graphics.PorterDuffXfermode;
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import android.graphics.RectF;
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import android.graphics.Typeface;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.MotionEvent;
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import android.view.View;
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@ -34,6 +35,8 @@ import java.util.List;
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*/
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public class CanvasView extends View {
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private static final String TAG = CanvasView.class.getSimpleName();
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// Enumeration for Mode
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public enum Mode {
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DRAW,
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@ -52,9 +55,9 @@ public class CanvasView extends View {
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QUBIC_BEZIER;
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}
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private Context context = null;
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private Canvas canvas = null;
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private Bitmap bitmap = null;
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private int canvasWidth = 1;
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private int canvasHeight = 1;
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private Bitmap bitmap = null;
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private List<Path> pathLists = new ArrayList<Path>();
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private List<Paint> paintLists = new ArrayList<Paint>();
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@ -80,15 +83,6 @@ public class CanvasView extends View {
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private float blur = 0F;
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private Paint.Cap lineCap = Paint.Cap.ROUND;
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// for Text
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private String text = "";
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private Typeface fontFamily = Typeface.DEFAULT;
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private float fontSize = 32F;
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private Paint.Align textAlign = Paint.Align.RIGHT; // fixed
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private Paint textPaint = new Paint();
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private float textX = 0F;
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private float textY = 0F;
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// for Drawer
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private float startX = 0F;
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private float startY = 0F;
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@ -106,7 +100,7 @@ public class CanvasView extends View {
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*/
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public CanvasView(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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this.setup(context);
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this.setup();
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}
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/**
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@ -117,7 +111,7 @@ public class CanvasView extends View {
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*/
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public CanvasView(Context context, AttributeSet attrs) {
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super(context, attrs);
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this.setup(context);
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this.setup();
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}
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/**
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@ -127,22 +121,13 @@ public class CanvasView extends View {
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*/
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public CanvasView(Context context) {
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super(context);
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this.setup(context);
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}
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/**
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* Common initialization.
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*
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* @param context
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*/
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private void setup(Context context) {
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this.context = context;
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private void setup() {
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this.pathLists.add(new Path());
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this.paintLists.add(this.createPaint());
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this.historyPointer++;
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this.textPaint.setARGB(0, 255, 255, 255);
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}
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/**
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@ -160,14 +145,6 @@ public class CanvasView extends View {
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paint.setStrokeCap(this.lineCap);
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paint.setStrokeJoin(Paint.Join.MITER); // fixed
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// for Text
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if (this.mode == Mode.TEXT) {
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paint.setTypeface(this.fontFamily);
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paint.setTextSize(this.fontSize);
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paint.setTextAlign(this.textAlign);
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paint.setStrokeWidth(0F);
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}
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if (this.mode == Mode.ERASER) {
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// Eraser
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paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
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@ -238,51 +215,6 @@ public class CanvasView extends View {
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return this.pathLists.get(this.historyPointer - 1);
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}
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/**
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* This method draws text.
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*
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* @param canvas the instance of Canvas
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*/
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private void drawText(Canvas canvas) {
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if (this.text.length() <= 0) {
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return;
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}
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if (this.mode == Mode.TEXT) {
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this.textX = this.startX;
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this.textY = this.startY;
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this.textPaint = this.createPaint();
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}
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float textX = this.textX;
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float textY = this.textY;
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Paint paintForMeasureText = new Paint();
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// Line break automatically
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float textLength = paintForMeasureText.measureText(this.text);
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float lengthOfChar = textLength / (float)this.text.length();
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float restWidth = this.canvas.getWidth() - textX; // text-align : right
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int numChars = (lengthOfChar <= 0) ? 1 : (int) Math.floor((double)(restWidth / lengthOfChar)); // The number of characters at 1 line
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int modNumChars = (numChars < 1) ? 1 : numChars;
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float y = textY;
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for (int i = 0, len = this.text.length(); i < len; i += modNumChars) {
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String substring = "";
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if ((i + modNumChars) < len) {
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substring = this.text.substring(i, (i + modNumChars));
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} else {
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substring = this.text.substring(i, len);
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}
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y += this.fontSize;
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canvas.drawText(substring, textX, y, this.textPaint);
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}
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}
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/**
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* This method defines processes on MotionEvent.ACTION_DOWN
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*
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@ -433,17 +365,18 @@ public class CanvasView extends View {
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canvas.drawPath(path, paint);
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}
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}
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this.drawText(canvas);
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this.canvas = canvas;
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@Override
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protected void onSizeChanged(int w, int h, int oldw, int oldh) {
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super.onSizeChanged(w, h, oldw, oldh);
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this.canvasWidth = w;
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this.canvasHeight = h;
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}
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public void render(Canvas canvas) {
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if (this.canvas == null) return;
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float scaleX = 1.0F * canvas.getWidth() / this.canvas.getWidth();
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float scaleY = 1.0F * canvas.getHeight() / this.canvas.getHeight();
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float scaleX = 1.0F * canvas.getWidth() / canvasWidth;
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float scaleY = 1.0F * canvas.getHeight() / canvasHeight;
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Matrix matrix = new Matrix();
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matrix.setScale(scaleX, scaleY);
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@ -591,8 +524,6 @@ public class CanvasView extends View {
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}
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}
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this.text = "";
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// Clear
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this.invalidate();
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}
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@ -615,24 +546,6 @@ public class CanvasView extends View {
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this.baseColor = color;
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}
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/**
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* This method is getter for drawn text.
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*
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* @return
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*/
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public String getText() {
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return this.text;
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}
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/**
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* This method is setter for drawn text.
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*
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* @param text
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*/
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public void setText(String text) {
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this.text = text;
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}
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/**
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* This method is getter for stroke or fill.
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*
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@ -775,47 +688,6 @@ public class CanvasView extends View {
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this.lineCap = cap;
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}
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/**
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* This method is getter for font size,
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*
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* @return
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*/
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public float getFontSize() {
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return this.fontSize;
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}
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/**
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* This method is setter for font size.
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* The 1st argument is greater than or equal to 0.0.
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*
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* @param size
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*/
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public void setFontSize(float size) {
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if (size >= 0F) {
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this.fontSize = size;
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} else {
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this.fontSize = 32F;
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}
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}
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/**
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* This method is getter for font-family.
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*
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* @return
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*/
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public Typeface getFontFamily() {
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return this.fontFamily;
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}
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/**
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* This method is setter for font-family.
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*
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* @param face
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*/
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public void setFontFamily(Typeface face) {
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this.fontFamily = face;
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}
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/**
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* This method gets current canvas as bitmap.
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*
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