Examples with TextPaint android.text.TextPaint used on opensource projects

Example 31 with TextPaint

use of android.text.TextPaint in project actor-platform by actorapp.

the class UserSpan method draw.

@Override
public void draw(Canvas canvas, CharSequence charSequence, int start, int end, float x, int top, int y, int bottom, Paint paint) {
    int size = (int) textPaint.measureText(userText);
    Paint debug = new Paint();
    debug.setColor(0xffebebeb);
    debug.setStyle(Paint.Style.FILL_AND_STROKE);
    canvas.drawRoundRect(new RectF(x + Screen.dp(4), y - Screen.dp(20), x + size + Screen.dp(4 + 24), y + Screen.dp(8)), Screen.dp(14), Screen.dp(14), debug);
    canvas.drawText(userText, x + Screen.dp(4 + 12), y, textPaint);
}

Example 32 with TextPaint

use of android.text.TextPaint in project CoCoin by Nightonke.

the class PaperButton method onDraw.

@Override
protected void onDraw(@NonNull Canvas canvas) {
    super.onDraw(canvas);
    int radius = 0;
    int shadowColor = changeColorAlpha(mShadowColor, MIN_SHADOW_COLOR_ALPHA);
    long elapsed = System.currentTimeMillis() - mStartTime;
    switch(mState) {
        case StateNormal:
            shadowColor = changeColorAlpha(mShadowColor, MIN_SHADOW_COLOR_ALPHA);
            break;
        case StateTouchDown:
            ripplePaint.setAlpha(255);
            if (elapsed < ANIMATION_DURATION) {
                radius = Math.round(elapsed * getWidth() / 2 / ANIMATION_DURATION);
                float shadowAlpha = (MAX_SHADOW_COLOR_ALPHA - MIN_SHADOW_COLOR_ALPHA) * elapsed / ANIMATION_DURATION + MIN_SHADOW_COLOR_ALPHA;
                shadowColor = changeColorAlpha(mShadowColor, shadowAlpha);
            } else {
                radius = getWidth() / 2;
                shadowColor = changeColorAlpha(mShadowColor, MAX_SHADOW_COLOR_ALPHA);
            }
            postInvalidate();
            break;
        case StateTouchUp:
            if (elapsed < ANIMATION_DURATION) {
                int alpha = Math.round((ANIMATION_DURATION - elapsed) * 255 / ANIMATION_DURATION);
                ripplePaint.setAlpha(alpha);
                radius = getWidth() / 2 + Math.round(elapsed * getWidth() / 2 / ANIMATION_DURATION);
                float shadowAlpha = (MAX_SHADOW_COLOR_ALPHA - MIN_SHADOW_COLOR_ALPHA) * (ANIMATION_DURATION - elapsed) / ANIMATION_DURATION + MIN_SHADOW_COLOR_ALPHA;
                shadowColor = changeColorAlpha(mShadowColor, shadowAlpha);
            } else {
                mState = StateNormal;
                radius = 0;
                ripplePaint.setAlpha(0);
                shadowColor = changeColorAlpha(mShadowColor, MIN_SHADOW_COLOR_ALPHA);
            }
            postInvalidate();
            break;
    }
    backgroundPaint.setShadowLayer(mShadowRadius, mShadowOffsetX, mShadowOffsetY, shadowColor);
    canvas.drawRoundRect(getRectF(), mCornerRadius, mCornerRadius, backgroundPaint);
    canvas.save();
    if (mState == StateTouchDown || mState == StateTouchUp) {
        if (rippleClipPath == null) {
            rippleClipPath = new Path();
            rippleClipPath.addRoundRect(getRectF(), mCornerRadius, mCornerRadius, Path.Direction.CW);
        }
        canvas.clipPath(rippleClipPath);
    }
    canvas.drawCircle(mTouchPoint.x, mTouchPoint.y, radius, ripplePaint);
    canvas.restore();
    if (mText != null && mText.length() > 0) {
        int y = (int) (getHeight() / 2 - ((textPaint.descent() + textPaint.ascent()) / 2));
        canvas.drawText(mText.toString(), getWidth() / 2, y, textPaint);
    }
}

Example 33 with TextPaint

use of android.text.TextPaint in project LuaViewSDK by alibaba.

the class TextUtil method getAutofitTextSize.

/**
     * Recursive binary search to find the best size for the text.
     */
private static float getAutofitTextSize(CharSequence text, TextPaint paint, float targetWidth, int maxLines, float low, float high, float precision, DisplayMetrics displayMetrics) {
    float mid = (low + high) / 2.0f;
    int lineCount = 1;
    StaticLayout layout = null;
    paint.setTextSize(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_PX, mid, displayMetrics));
    if (maxLines != 1) {
        layout = new StaticLayout(text, paint, (int) targetWidth, Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, true);
        lineCount = layout.getLineCount();
    }
    if (SPEW)
        Log.d(TAG, "low=" + low + " high=" + high + " mid=" + mid + " target=" + targetWidth + " maxLines=" + maxLines + " lineCount=" + lineCount);
    if (lineCount > maxLines) {
        // For the case that `text` has more newline characters than `maxLines`.
        if ((high - low) < precision) {
            return low;
        }
        return getAutofitTextSize(text, paint, targetWidth, maxLines, low, mid, precision, displayMetrics);
    } else if (lineCount < maxLines) {
        return getAutofitTextSize(text, paint, targetWidth, maxLines, mid, high, precision, displayMetrics);
    } else {
        float maxLineWidth = 0;
        if (maxLines == 1) {
            maxLineWidth = paint.measureText(text, 0, text.length());
        } else {
            for (int i = 0; i < lineCount; i++) {
                if (layout.getLineWidth(i) > maxLineWidth) {
                    maxLineWidth = layout.getLineWidth(i);
                }
            }
        }
        if ((high - low) < precision) {
            return low;
        } else if (maxLineWidth > targetWidth) {
            return getAutofitTextSize(text, paint, targetWidth, maxLines, low, mid, precision, displayMetrics);
        } else if (maxLineWidth < targetWidth) {
            return getAutofitTextSize(text, paint, targetWidth, maxLines, mid, high, precision, displayMetrics);
        } else {
            return mid;
        }
    }
}

Example 34 with TextPaint

use of android.text.TextPaint in project LuaViewSDK by alibaba.

the class TextUtil method adjustTextSize.

/**
     * Re-sizes the textSize of the TextView so that the text fits within the bounds of the View.
     */
private static void adjustTextSize(TextView view, TextPaint paint, float minTextSize, float maxTextSize, int maxLines, float precision) {
    if (maxLines <= 0 || maxLines == Integer.MAX_VALUE) {
        // Don't auto-size since there's no limit on lines.
        return;
    }
    int targetWidth = view.getWidth() - view.getPaddingLeft() - view.getPaddingRight();
    if (targetWidth <= 0) {
        return;
    }
    CharSequence text = view.getText();
    TransformationMethod method = view.getTransformationMethod();
    if (method != null) {
        text = method.getTransformation(text, view);
    }
    Context context = view.getContext();
    Resources r = Resources.getSystem();
    DisplayMetrics displayMetrics;
    float size = maxTextSize;
    float high = size;
    float low = 0;
    if (context != null) {
        r = context.getResources();
    }
    displayMetrics = r.getDisplayMetrics();
    paint.set(view.getPaint());
    paint.setTextSize(size);
    if ((maxLines == 1 && paint.measureText(text, 0, text.length()) > targetWidth) || getLineCount(text, paint, size, targetWidth, displayMetrics) > maxLines) {
        size = getAutofitTextSize(text, paint, targetWidth, maxLines, low, high, precision, displayMetrics);
    }
    if (size < minTextSize) {
        size = minTextSize;
    }
    view.setTextSize(TypedValue.COMPLEX_UNIT_PX, size);
}

Example 35 with TextPaint

use of android.text.TextPaint in project LuaViewSDK by alibaba.

the class AutofitHelper method getAutofitTextSize.

/**
     * Recursive binary search to find the best size for the text.
     */
private static float getAutofitTextSize(CharSequence text, TextPaint paint, float targetWidth, int maxLines, float low, float high, float precision, DisplayMetrics displayMetrics) {
    float mid = (low + high) / 2.0f;
    int lineCount = 1;
    StaticLayout layout = null;
    paint.setTextSize(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_PX, mid, displayMetrics));
    if (maxLines != 1) {
        layout = new StaticLayout(text, paint, (int) targetWidth, Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, true);
        lineCount = layout.getLineCount();
    }
    if (SPEW)
        Log.d(TAG, "low=" + low + " high=" + high + " mid=" + mid + " target=" + targetWidth + " maxLines=" + maxLines + " lineCount=" + lineCount);
    if (lineCount > maxLines) {
        // For the case that `text` has more newline characters than `maxLines`.
        if ((high - low) < precision) {
            return low;
        }
        return getAutofitTextSize(text, paint, targetWidth, maxLines, low, mid, precision, displayMetrics);
    } else if (lineCount < maxLines) {
        return getAutofitTextSize(text, paint, targetWidth, maxLines, mid, high, precision, displayMetrics);
    } else {
        float maxLineWidth = 0;
        if (maxLines == 1) {
            maxLineWidth = paint.measureText(text, 0, text.length());
        } else {
            for (int i = 0; i < lineCount; i++) {
                if (layout.getLineWidth(i) > maxLineWidth) {
                    maxLineWidth = layout.getLineWidth(i);
                }
            }
        }
        if ((high - low) < precision) {
            return low;
        } else if (maxLineWidth > targetWidth) {
            return getAutofitTextSize(text, paint, targetWidth, maxLines, low, mid, precision, displayMetrics);
        } else if (maxLineWidth < targetWidth) {
            return getAutofitTextSize(text, paint, targetWidth, maxLines, mid, high, precision, displayMetrics);
        } else {
            return mid;
        }
    }
}