Example usage for android.graphics Canvas drawText

Introduction

In this page you can find the example usage for android.graphics Canvas drawText.

Prototype

public void drawText(@NonNull String text, float x, float y, @NonNull Paint paint) 

Source Link

Document

Draw the text, with origin at (x,y), using the specified paint.

Usage

From source file:app.android.datetimepicker.date.SimpleMonthView.java

/**
 * Draws the week and month day numbers for this week. Override this method
 * if you need different placement./*from w  w  w  .  j a va 2  s.  c  om*/
 *
 * @param canvas The canvas to draw on
 */
protected void drawMonthNums(Canvas canvas) {
    int y = (((mRowHeight + MINI_DAY_NUMBER_TEXT_SIZE) / 2) - DAY_SEPARATOR_WIDTH) + MONTH_HEADER_SIZE;
    int dayWidthHalf = (mWidth - mPadding * 2) / (mNumDays * 2);
    int j = findDayOffset();
    for (int dayNumber = 1; dayNumber <= mNumCells; dayNumber++) {
        int x = (2 * j + 1) * dayWidthHalf + mPadding;
        if (mSelectedDay == dayNumber) {
            canvas.drawCircle(x, y - (MINI_DAY_NUMBER_TEXT_SIZE / 3), DAY_SELECTED_CIRCLE_SIZE,
                    mSelectedCirclePaint);
        }

        if (mHasToday && mToday == dayNumber) {
            mMonthNumPaint.setColor(mTodayNumberColor);
        } else {
            mMonthNumPaint.setColor(mDayTextColor);
        }
        canvas.drawText(String.format("%d", dayNumber), x, y, mMonthNumPaint);
        j++;
        if (j == mNumDays) {
            j = 0;
            y += mRowHeight;
        }
    }
}

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From source file:com.dirkgassen.wator.ui.view.RollingGraphView.java

/**
 * Paints the data points of one series vertically.
 *
 * @param c          canvas to paint to//from ww w  .  j a  va  2  s .  co  m
 * @param nameBounds bounds of the label
 * @param seriesNo   index of the series to paint
 * @param width      width of the view
 * @param height     height of the view
 * @param maxValue   calculated possible maximum data value
 */
private void paintSeriesVertical(Canvas c, Rect nameBounds, int seriesNo, int width,
        @SuppressWarnings("UnusedParameters") int height, float maxValue) {
    float paddingLeft = getPaddingLeft();
    float paddingTop = getPaddingTop();
    float paddingRight = getPaddingRight();
    float paddingBottom = getPaddingBottom();

    float y = nameBounds.height() + paddingTop;
    float x;
    if (currentValue == -1) {
        x = (width - paddingLeft - paddingRight) / (seriesNames.length + 1) * (seriesNo + 1) + paddingLeft;
    } else {
        if (dataValues == null) {
            Log.e("Wa-Tor", "NO DATA VALUES although currentValue is " + currentValue);
        } else if (dataValues[currentValue] == null) {
            Log.e("Wa-Tor", "NO SERIES DATA although currentValue is " + currentValue);
        }
        x = dataValues[currentValue][seriesNo] * (width - paddingLeft - paddingRight) / maxValue + paddingLeft;
    }
    c.drawText(seriesNames[seriesNo], x - nameBounds.width() / 2, y, seriesPaints[seriesNo]);

    float scale = seriesPaints[seriesNo].getStrokeWidth();
    y += 6f * scale;
    c.drawLine(x, y, x, y - 3f * scale, seriesPaints[seriesNo]);
    c.drawLine(x, y, x - 1.5f * scale, y - 1.5f * scale, seriesPaints[seriesNo]);
    c.drawLine(x, y, x + 1.5f * scale, y - 1.5f * scale, seriesPaints[seriesNo]);

    if (currentValue != -1) {
        int no = currentValue;
        do {
            if (dataValues[no] == null) {
                break;
            }
            float newX = dataValues[no][seriesNo] * (width - paddingLeft - paddingRight) / maxValue
                    + paddingLeft;
            float newY = y + 1;
            c.drawLine(x, y, newX, newY, seriesPaints[seriesNo]);
            x = newX;
            y = newY;
            no = no == 0 ? dataValues.length - 1 : no - 1;
        } while (no != oldestValue && y < height - paddingBottom);
    }
}

---

From source file:com.android.yijiang.kzx.widget.betterpickers.calendardatepicker.SimpleMonthView.java

/**
 * Draws the week and month day numbers for this week. Override this method if you need different placement.
 *
 * @param canvas The canvas to draw on//ww  w.j a  va 2s  .  com
 */
protected void drawMonthNums(Canvas canvas) {
    int y = (((mRowHeight + sMiniDayNumberTextSize) / 2) - DAY_SEPARATOR_WIDTH) + sMonthHeaderSize;
    int dayWidthHalf = (mWidth - mPadding * 2) / (mNumDays * 2);
    int j = findDayOffset();
    for (int dayNumber = 1; dayNumber <= mNumCells; dayNumber++) {
        int x = (2 * j + 1) * dayWidthHalf + mPadding;
        if (mSelectedDay == dayNumber) {
            canvas.drawCircle(x, y - (sMiniDayNumberTextSize / 3), sDaySelectedCircleSize,
                    mSelectedCirclePaint);
        }

        if (mHasToday && mToday == dayNumber) {
            mMonthNumPaint.setColor(mTodayNumberColor);
        } else {
            mMonthNumPaint.setColor(mDayTextColor);
        }
        canvas.drawText(String.format("%d", dayNumber), x, y, mMonthNumPaint);
        j++;
        if (j == mNumDays) {
            j = 0;
            y += mRowHeight;
        }
    }
}

---

From source file:com.mojtaba.materialdatetimepicker.date.MonthView.java

protected void drawMonthDayLabels(Canvas canvas) {
    int y = getMonthHeaderSize() - (MONTH_DAY_LABEL_TEXT_SIZE / 2);
    int dayWidthHalf = (mWidth - mEdgePadding * 2) / (mNumDays * 2);

    for (int i = 0; i < mNumDays; i++) {
        int x = (2 * i + 1) * dayWidthHalf + mEdgePadding;

        int calendarDay = (i + mWeekStart) % mNumDays;
        mDayLabelCalendar.set(Calendar.DAY_OF_WEEK, calendarDay);
        String localWeekDisplayName = mDayLabelCalendar.getPersianWeekDayName(); // TODO: RTLize
        String weekString = localWeekDisplayName.substring(0, 1);
        canvas.drawText(weekString, x, y, mMonthDayLabelPaint);
    }//  w  ww.  java2s.  c  om
}

---

From source file:com.dirkgassen.wator.ui.view.RollingGraphView.java

/**
 * Paints the data points of one series horizontally.
 *
 * @param c canvas to paint to//from w  w  w .j av  a2  s  . co m
 * @param nameBounds bounds of the label
 * @param seriesNo index of the series to paint
 * @param width width of the view
 * @param height height of the view
 * @param maxValue calculated possible maximum data value
 */
private void paintSeriesHorizontal(Canvas c, Rect nameBounds, int seriesNo, int width, int height,
        float maxValue) {
    float paddingLeft = getPaddingLeft();
    float paddingTop = getPaddingTop();
    float paddingRight = getPaddingRight();
    float paddingBottom = getPaddingBottom();

    float x = width - nameBounds.width() - paddingRight;
    float y;
    if (currentValue == -1) {
        y = height - (height - paddingBottom - paddingTop) / (seriesNames.length + 1) * (seriesNo + 1)
                + paddingTop;
    } else {
        if (dataValues == null) {
            Log.e("Wa-Tor", "NO DATA VALUES although currentValue is " + currentValue);
        } else if (dataValues[currentValue] == null) {
            Log.e("Wa-Tor", "NO SERIES DATA although currentValue is " + currentValue);
        }
        y = height - paddingBottom
                - dataValues[currentValue][seriesNo] * (height - paddingBottom - paddingTop) / maxValue;
    }
    c.drawText(seriesNames[seriesNo], x, y + nameBounds.height() / 2, seriesPaints[seriesNo]);

    float scale = seriesPaints[seriesNo].getStrokeWidth();
    x -= 6f * scale;
    c.drawLine(x, y, x + 3f * scale, y, seriesPaints[seriesNo]);
    c.drawLine(x, y, x + 1.5f * scale, y + 1.5f * scale, seriesPaints[seriesNo]);
    c.drawLine(x, y, x + 1.5f * scale, y - 1.5f * scale, seriesPaints[seriesNo]);
    if (currentValue != -1) {
        int no = currentValue;
        do {
            if (dataValues[no] == null) {
                break;
            }
            float newX = x - 1;
            float newY = height - paddingBottom
                    - dataValues[no][seriesNo] * (height - paddingBottom - paddingTop) / maxValue;
            c.drawLine(x, y, newX, newY, seriesPaints[seriesNo]);
            x = newX;
            y = newY;
            no = no == 0 ? dataValues.length - 1 : no - 1;
        } while (no != oldestValue && x > paddingLeft);
    }
}

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From source file:com.andexert.calendarlistview.library.SimpleMonthView.java

/**
 * /*from w  w  w  .  ja  v a  2  s  . c  o  m*/
 * @param canvas
 */
private void drawMonthTitle(Canvas canvas) {
    StringBuilder stringBuilder = new StringBuilder(getMonthAndYearString().toLowerCase());
    stringBuilder.setCharAt(0, Character.toUpperCase(stringBuilder.charAt(0)));
    String text = stringBuilder.toString();
    Rect rect = new Rect();
    mMonthTitlePaint.getTextBounds(text, 0, text.length(), rect);
    //        int x = (mWidth + 2 * mPadding) / 2;
    int leftPadding = getResources().getDimensionPixelSize(R.dimen.month_day_left_padding);
    int x = rect.width() / 2 + leftPadding;
    //        int y = (MONTH_HEADER_SIZE - MONTH_DAY_LABEL_TEXT_SIZE) / 2 + (MONTH_LABEL_TEXT_SIZE / 3);
    int y = (MONTH_HEADER_SIZE - MONTH_DAY_LABEL_TEXT_SIZE) + (MONTH_LABEL_TEXT_SIZE / 4);
    if (mIsShowMonthDay) {
        y = MONTH_HEADER_SIZE - MONTH_DAY_LABEL_TEXT_SIZE - (MONTH_LABEL_TEXT_SIZE * 2);
    }
    canvas.drawText(text, x, y, mMonthTitlePaint);
    int linePadding = getResources().getDimensionPixelSize(R.dimen.month_day_line_padding);
    canvas.drawLine(leftPadding, y + linePadding, rect.width() + leftPadding, y + linePadding,
            mMonthNumLinePaint);
}

---

From source file:com.example.angel.parkpanda.MainActivity.java

public Bitmap drawTextToBitmap(int gResId, String gText) {
    Resources resources = getResources();
    float scale = resources.getDisplayMetrics().density;
    Bitmap bitmap = BitmapFactory.decodeResource(resources, gResId);
    android.graphics.Bitmap.Config bitmapConfig = bitmap.getConfig();

    if (bitmapConfig == null) {
        bitmapConfig = android.graphics.Bitmap.Config.ARGB_8888;
    }//from   w ww  .  j a v  a2 s . c  o m
    bitmap = bitmap.copy(bitmapConfig, true);
    Canvas canvas = new Canvas(bitmap);

    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setColor(Color.rgb(0, 0, 0));
    paint.setTextSize((int) (15 * scale));
    paint.setShadowLayer(1f, 0f, 1f, Color.BLACK);

    Rect bounds = new Rect();
    paint.getTextBounds(gText, 0, gText.length(), bounds);
    int x = (bitmap.getWidth() - bounds.width()) / 2;
    int y = (bitmap.getHeight() + bounds.height()) / 2 - 10;
    canvas.drawText(gText, x, y, paint);

    return bitmap;
}

---

From source file:com.tealeaf.TeaLeaf.java

public Bitmap getBitmapFromView(EditText view) {
    //Define a bitmap with the same size as the view
    Bitmap returnedBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
    //Bind a canvas to it
    Canvas canvas = new Canvas(returnedBitmap);
    //Get the view's background
    Drawable bgDrawable = view.getBackground();
    if (bgDrawable != null) {
        //has background drawable, then draw it on the canvas
        bgDrawable.draw(canvas);/*from  w  w w. jav  a 2s .com*/
    }
    // draw the view on the canvas
    view.draw(canvas);
    Paint p = new Paint();
    p.setColor(Color.BLACK);
    p.setTextSize(24);
    canvas.drawText("'ello mate", 0, 0, p);
    //return the bitmap
    return returnedBitmap;
}

---

From source file:com.cssweb.android.view.PriceMini.java

public void drawHKIndex(Canvas canvas) {
    Paint paint = this.mPaint;
    paint.setTypeface(Typeface.DEFAULT_BOLD);
    paint.setAntiAlias(true);//from w  w w . j a  v  a 2  s.  c  o m
    if (quoteData != null) {
        try {
            JSONArray jArr = quoteData.getJSONArray("data");
            JSONObject jo = jArr.getJSONObject(0);
            double zrsp = jo.getDouble("zrsp");

            double zjcj = jo.getDouble("zjcj");
            paint.setTextSize(mTextSize * 2);
            setColor(paint, zjcj, zrsp);
            paint.setTextAlign(Paint.Align.LEFT);
            canvas.translate(DX * 0.5f, DY * 2f);
            canvas.drawText(Utils.dataFormation(zjcj, stockdigit), x, y, paint);

            paint.setStyle(Paint.Style.STROKE);
            paint.setTextSize(mTextSize);

            double zhangd = jo.getDouble("zd");
            if (zhangd < 0) {
                paint.setColor(GlobalColor.colorPriceDown);
            } else if (zhangd > 0) {
                paint.setColor(GlobalColor.colorpriceUp);
            } else {
                paint.setColor(GlobalColor.colorPriceEqual);
            }
            canvas.translate(0, DY * 0.8f);
            String zhangdie = Utils.dataFormation(zhangd, stockdigit);
            if (zhangdie.equals("-"))
                canvas.drawText("", x, y, paint);
            else
                canvas.drawText(zhangdie, x, y, paint);

            double zhangf = jo.getDouble("zf");
            if (zhangf < 0) {
                paint.setColor(GlobalColor.colorPriceDown);
            } else if (zhangf > 0) {
                paint.setColor(GlobalColor.colorpriceUp);
            } else {
                paint.setColor(GlobalColor.colorPriceEqual);
            }
            canvas.translate(DX * 3.5f, 0);
            String zhangfu = Utils.dataFormation(zhangf * 100, stockdigit);
            if (zhangfu.equals("-"))
                canvas.drawText("", x, y, paint);
            else
                canvas.drawText(zhangfu + "%", x, y, paint);

            paint.setColor(GlobalColor.colorLabelName);

            canvas.translate(-DX * 4f, DY * 1.2f);
            canvas.drawText("", x, y, paint);
            canvas.translate(0, DY);
            canvas.drawText("??", x, y, paint);

            canvas.translate(width / 2, -DY * 1);
            paint.setTextAlign(Paint.Align.RIGHT);
            paint.setColor(GlobalColor.colorLabelName);
            canvas.drawText(Utils.dataFormation(zrsp, stockdigit), x - tips, y, paint);

            paint.setColor(GlobalColor.colorStockName);
            canvas.translate(0, DY);
            canvas.drawText(Utils.getAmountFormat(jo.getDouble("cjje"), true), x - tips, y, paint);

            paint.setColor(GlobalColor.colorLabelName);
            paint.setTextAlign(Paint.Align.LEFT);
            canvas.translate(0, -DY * 4);
            canvas.drawText("", x, y, paint);
            canvas.translate(0, DY);
            canvas.drawText("", x, y, paint);
            canvas.translate(0, DY);
            canvas.drawText("", x, y, paint);
            canvas.translate(0, DY);
            canvas.drawText("", x, y, paint);

            paint.setTextAlign(Paint.Align.RIGHT);
            canvas.translate(width / 2, -DY * 3);
            double jrkp = jo.getDouble("jrkp");
            setColor(paint, jrkp, zrsp);
            canvas.drawText(Utils.dataFormation(jrkp, stockdigit), x - tips, y, paint);

            canvas.translate(0, DY);
            double zg = jo.getDouble("zgcj");
            setColor(paint, zg, zrsp);
            canvas.drawText(Utils.dataFormation(zg, stockdigit), x - tips, y, paint);

            canvas.translate(0, DY);
            double zd = jo.getDouble("zdcj");
            setColor(paint, zd, zrsp);
            canvas.drawText(Utils.dataFormation(zd, stockdigit), x - tips, y, paint);

            paint.setColor(GlobalColor.colorStockName);
            canvas.translate(0, DY);
            canvas.drawText(Utils.dataFormation(jo.getDouble("amp") * 100, 1) + "%", x - tips, y, paint);
        } catch (JSONException e) {
            Log.e(TAG, e.toString());
        }
    } else {//?????
        paint.setTextAlign(Paint.Align.LEFT);
        paint.setColor(GlobalColor.colorLabelName);

        canvas.translate(DX, DY * 2f);
        canvas.drawText("-", x, y, paint);

        paint.setStyle(Paint.Style.STROKE);
        paint.setTextSize(mTextSize);

        canvas.translate(-DX / 2, DY * 0.8f);
        canvas.drawText("-", x, y, paint);

        canvas.translate(DX * 2.5f, 0);
        canvas.drawText("-", x, y, paint);
        canvas.translate(-DX * 3, DY * 1.2f);
        canvas.drawText("", x, y, paint);
        canvas.translate(0, DY);
        canvas.drawText("??", x, y, paint);

        paint.setTextAlign(Paint.Align.LEFT);
        canvas.translate(width / 2, -DY * 4);
        canvas.drawText("", x, y, paint);
        canvas.translate(0, DY);
        canvas.drawText("", x, y, paint);
        canvas.translate(0, DY);
        canvas.drawText("", x, y, paint);
        canvas.translate(0, DY);
        canvas.drawText("", x, y, paint);
    }
}

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From source file:net.exclaimindustries.geohashdroid.wiki.WikiPictureEditor.java

private static void drawStrings(String[] strings, Canvas c, Paint textPaint, Paint backgroundPaint) {
    // FIXME: The math here is ugly and blunt and probably not too
    // efficient or flexible.  It might even fail.  This needs to be
    // fixed and made less-ugly later.

    // We need SOME strings.  If we've got nothing, bail out.
    if (strings.length < 1)
        return;/*w ww  .j  a  v a 2 s  .c  om*/

    // First, init our variables.  This is as good a place as any to do so.
    Rect textBounds = new Rect();
    int[] heights = new int[strings.length];
    int totalHeight = INFOBOX_MARGIN * 2;
    int longestWidth = 0;

    // Now, loop through the strings, adding to the height and keeping track
    // of the longest width.
    int i = 0;
    for (String s : strings) {
        textPaint.getTextBounds(s, 0, s.length(), textBounds);
        if (textBounds.width() > longestWidth)
            longestWidth = textBounds.width();
        totalHeight += textBounds.height();
        heights[i] = textBounds.height();
        i++;
    }

    // Now, we have us a rectangle.  Draw that.
    Rect drawBounds = new Rect(c.getWidth() - longestWidth - (INFOBOX_MARGIN * 2), 0, c.getWidth(),
            totalHeight);

    c.drawRect(drawBounds, backgroundPaint);

    // Now, place each of the strings.  We'll assume the topmost one is in
    // index 0.  They should all be left-justified, too.
    i = 0;
    int curHeight = 0;
    for (String s : strings) {
        Log.d(DEBUG_TAG, "Drawing " + s + " at " + (drawBounds.left + INFOBOX_MARGIN) + ","
                + (INFOBOX_MARGIN + (INFOBOX_PADDING * (i + 1)) + curHeight));
        c.drawText(s, drawBounds.left + INFOBOX_MARGIN,
                INFOBOX_MARGIN + (INFOBOX_PADDING * (i + 1)) + curHeight, textPaint);
        curHeight += heights[i];
        i++;
    }
}

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