List of usage examples for android.graphics Canvas drawText
public void drawText(@NonNull CharSequence text, int start, int end, float x, float y, @NonNull Paint paint)
From source file:com.yek.keyboard.keyboards.views.CandidateView.java
/** * If the canvas is null, then only touch calculations are performed to pick * the target candidate.//from ww w. j a v a 2 s.co m */ @Override protected void onDraw(Canvas canvas) { if (canvas != null) { super.onDraw(canvas); } mTotalWidth = 0; final int height = getHeight(); if (mBgPadding == null) { mBgPadding = new Rect(0, 0, 0, 0); if (getBackground() != null) { getBackground().getPadding(mBgPadding); } mDivider.setBounds(0, 0, mDivider.getIntrinsicWidth(), mDivider.getIntrinsicHeight()); } final int dividerYOffset = (height - mDivider.getMinimumHeight()) / 2; final int count = mSuggestions.size(); final Rect bgPadding = mBgPadding; final Paint paint = mPaint; final int touchX = mTouchX; final int scrollX = getScrollX(); final boolean scrolled = mScrolled; final boolean typedWordValid = mTypedWordValid; int x = 0; for (int i = 0; i < count; i++) { CharSequence suggestion = mSuggestions.get(i); if (suggestion == null) continue; final int wordLength = suggestion.length(); paint.setColor(mColorNormal); if (mHaveMinimalSuggestion && ((i == 1 && !typedWordValid) || (i == 0 && typedWordValid))) { paint.setTypeface(Typeface.DEFAULT_BOLD); paint.setColor(mColorRecommended); // existsAutoCompletion = true; } else if (i != 0 || (wordLength == 1 && count > 1)) { // HACK: even if i == 0, we use mColorOther when this // suggestion's length is 1 and // there are multiple suggestions, such as the default // punctuation list. paint.setColor(mColorOther); } // now that we set the typeFace, we can measure int wordWidth; if ((wordWidth = mWordWidth[i]) == 0) { float textWidth = paint.measureText(suggestion, 0, wordLength); // wordWidth = Math.max(0, (int) textWidth + X_GAP * 2); wordWidth = (int) (textWidth + mXGap * 2); mWordWidth[i] = wordWidth; } mWordX[i] = x; if (touchX != OUT_OF_BOUNDS_X_CORD && !scrolled && touchX + scrollX >= x && touchX + scrollX < x + wordWidth) { if (canvas != null && !mShowingAddToDictionary) { canvas.translate(x, 0); mSelectionHighlight.setBounds(0, bgPadding.top, wordWidth, height); mSelectionHighlight.draw(canvas); canvas.translate(-x, 0); } mSelectedString = suggestion; mSelectedIndex = i; } if (canvas != null) { // (+)This is the trick to get RTL/LTR text correct if (AnyApplication.getConfig().workaround_alwaysUseDrawText()) { final int y = (int) (height + paint.getTextSize() - paint.descent()) / 2; canvas.drawText(suggestion, 0, wordLength, x + wordWidth / 2, y, paint); } else { final int y = (int) (height - paint.getTextSize() + paint.descent()) / 2; // no matter what: StaticLayout float textX = x + (wordWidth / 2) - mXGap; float textY = y - bgPadding.bottom - bgPadding.top; canvas.translate(textX, textY); mTextPaint.setTypeface(paint.getTypeface()); mTextPaint.setColor(paint.getColor()); StaticLayout suggestionText = new StaticLayout(suggestion, mTextPaint, wordWidth, Alignment.ALIGN_CENTER, 1.0f, 0.0f, false); suggestionText.draw(canvas); canvas.translate(-textX, -textY); } // (-) paint.setColor(mColorOther); canvas.translate(x + wordWidth, 0); // Draw a divider unless it's after the hint //or the last suggested word if (count > 1 && (!mShowingAddToDictionary) && i != (count - 1)) { canvas.translate(0, dividerYOffset); mDivider.draw(canvas); canvas.translate(0, -dividerYOffset); } canvas.translate(-x - wordWidth, 0); } paint.setTypeface(Typeface.DEFAULT); x += wordWidth; } mTotalWidth = x; if (mTargetScrollX != scrollX) { scrollToTarget(); } }
From source file:com.anysoftkeyboard.keyboards.views.CandidateView.java
/** * If the canvas is null, then only touch calculations are performed to pick * the target candidate./*from ww w .j a v a2 s .c o m*/ */ @Override protected void onDraw(Canvas canvas) { if (canvas != null) { super.onDraw(canvas); } mTotalWidth = 0; final int height = getHeight(); if (mBgPadding == null) { mBgPadding = new Rect(0, 0, 0, 0); if (getBackground() != null) { getBackground().getPadding(mBgPadding); } mDivider.setBounds(0, 0, mDivider.getIntrinsicWidth(), mDivider.getIntrinsicHeight()); } final int dividerYOffset = (height - mDivider.getMinimumHeight()) / 2; final int count = mSuggestions.size(); final Rect bgPadding = mBgPadding; final Paint paint = mPaint; final int touchX = mTouchX; final int scrollX = getScrollX(); final boolean scrolled = mScrolled; final boolean typedWordValid = mTypedWordValid; int x = 0; for (int i = 0; i < count; i++) { CharSequence suggestion = mSuggestions.get(i); if (suggestion == null) continue; final int wordLength = suggestion.length(); paint.setColor(mColorNormal); if (mHaveMinimalSuggestion && ((i == 1 && !typedWordValid) || (i == 0 && typedWordValid))) { paint.setTypeface(Typeface.DEFAULT_BOLD); paint.setColor(mColorRecommended); // existsAutoCompletion = true; } else if (i != 0 || (wordLength == 1 && count > 1)) { // HACK: even if i == 0, we use mColorOther when this // suggestion's length is 1 and // there are multiple suggestions, such as the default // punctuation list. paint.setColor(mColorOther); } // now that we set the typeFace, we can measure int wordWidth; if ((wordWidth = mWordWidth[i]) == 0) { float textWidth = paint.measureText(suggestion, 0, wordLength); // wordWidth = Math.max(0, (int) textWidth + X_GAP * 2); wordWidth = (int) (textWidth + mHorizontalGap * 2); mWordWidth[i] = wordWidth; } mWordX[i] = x; if (touchX != OUT_OF_BOUNDS_X_CORD && !scrolled && touchX + scrollX >= x && touchX + scrollX < x + wordWidth) { if (canvas != null && !mShowingAddToDictionary) { canvas.translate(x, 0); mSelectionHighlight.setBounds(0, bgPadding.top, wordWidth, height); mSelectionHighlight.draw(canvas); canvas.translate(-x, 0); } mSelectedString = suggestion; mSelectedIndex = i; } if (canvas != null) { // (+)This is the trick to get RTL/LTR text correct if (AnyApplication.getConfig().workaround_alwaysUseDrawText()) { final int y = (int) (height + paint.getTextSize() - paint.descent()) / 2; canvas.drawText(suggestion, 0, wordLength, x + wordWidth / 2, y, paint); } else { final int y = (int) (height - paint.getTextSize() + paint.descent()) / 2; // no matter what: StaticLayout float textX = x + (wordWidth / 2) - mHorizontalGap; float textY = y - bgPadding.bottom - bgPadding.top; canvas.translate(textX, textY); mTextPaint.setTypeface(paint.getTypeface()); mTextPaint.setColor(paint.getColor()); StaticLayout suggestionText = new StaticLayout(suggestion, mTextPaint, wordWidth, Alignment.ALIGN_CENTER, 1.0f, 0.0f, false); suggestionText.draw(canvas); canvas.translate(-textX, -textY); } // (-) paint.setColor(mColorOther); canvas.translate(x + wordWidth, 0); // Draw a divider unless it's after the hint //or the last suggested word if (count > 1 && (!mShowingAddToDictionary) && i != (count - 1)) { canvas.translate(0, dividerYOffset); mDivider.draw(canvas); canvas.translate(0, -dividerYOffset); } canvas.translate(-x - wordWidth, 0); } paint.setTypeface(Typeface.DEFAULT); x += wordWidth; } mTotalWidth = x; if (mTargetScrollX != scrollX) { scrollToTarget(); } }
From source file:cn.androidy.androiddevelopmentpatterns.interactivechart.InteractiveLineGraphView.java
/** * Draws the chart axes and labels onto the canvas. *///from w w w . j a va2 s .co m private void drawAxes(Canvas canvas) { // Computes axis stops (in terms of numerical value and position on screen) int i; computeAxisStops(mCurrentViewport.left, mCurrentViewport.right, mContentRect.width() / mMaxLabelWidth / 2, mXStopsBuffer); computeAxisStops(mCurrentViewport.top, mCurrentViewport.bottom, mContentRect.height() / mLabelHeight / 2, mYStopsBuffer); // Avoid unnecessary allocations during drawing. Re-use allocated // arrays and only reallocate if the number of stops grows. if (mAxisXPositionsBuffer.length < mXStopsBuffer.numStops) { mAxisXPositionsBuffer = new float[mXStopsBuffer.numStops]; } if (mAxisYPositionsBuffer.length < mYStopsBuffer.numStops) { mAxisYPositionsBuffer = new float[mYStopsBuffer.numStops]; } if (mAxisXLinesBuffer.length < mXStopsBuffer.numStops * 4) { mAxisXLinesBuffer = new float[mXStopsBuffer.numStops * 4]; } if (mAxisYLinesBuffer.length < mYStopsBuffer.numStops * 4) { mAxisYLinesBuffer = new float[mYStopsBuffer.numStops * 4]; } // Compute positions for (i = 0; i < mXStopsBuffer.numStops; i++) { mAxisXPositionsBuffer[i] = getDrawX(mXStopsBuffer.stops[i]); } for (i = 0; i < mYStopsBuffer.numStops; i++) { mAxisYPositionsBuffer[i] = getDrawY(mYStopsBuffer.stops[i]); } // Draws grid lines using drawLines (faster than individual drawLine calls) for (i = 0; i < mXStopsBuffer.numStops; i++) { mAxisXLinesBuffer[i * 4 + 0] = (float) Math.floor(mAxisXPositionsBuffer[i]); mAxisXLinesBuffer[i * 4 + 1] = mContentRect.top; mAxisXLinesBuffer[i * 4 + 2] = (float) Math.floor(mAxisXPositionsBuffer[i]); mAxisXLinesBuffer[i * 4 + 3] = mContentRect.bottom; } canvas.drawLines(mAxisXLinesBuffer, 0, mXStopsBuffer.numStops * 4, mGridPaint); for (i = 0; i < mYStopsBuffer.numStops; i++) { mAxisYLinesBuffer[i * 4 + 0] = mContentRect.left; mAxisYLinesBuffer[i * 4 + 1] = (float) Math.floor(mAxisYPositionsBuffer[i]); mAxisYLinesBuffer[i * 4 + 2] = mContentRect.right; mAxisYLinesBuffer[i * 4 + 3] = (float) Math.floor(mAxisYPositionsBuffer[i]); } canvas.drawLines(mAxisYLinesBuffer, 0, mYStopsBuffer.numStops * 4, mGridPaint); // Draws X labels int labelOffset; int labelLength; mLabelTextPaint.setTextAlign(Paint.Align.CENTER); for (i = 0; i < mXStopsBuffer.numStops; i++) { // Do not use String.format in high-performance code such as onDraw code. labelLength = formatFloat(mLabelBuffer, mXStopsBuffer.stops[i], mXStopsBuffer.decimals); labelOffset = mLabelBuffer.length - labelLength; canvas.drawText(mLabelBuffer, labelOffset, labelLength, mAxisXPositionsBuffer[i], mContentRect.bottom + mLabelHeight + mLabelSeparation, mLabelTextPaint); } // Draws Y labels mLabelTextPaint.setTextAlign(Paint.Align.RIGHT); for (i = 0; i < mYStopsBuffer.numStops; i++) { // Do not use String.format in high-performance code such as onDraw code. labelLength = formatFloat(mLabelBuffer, mYStopsBuffer.stops[i], mYStopsBuffer.decimals); labelOffset = mLabelBuffer.length - labelLength; canvas.drawText(mLabelBuffer, labelOffset, labelLength, mContentRect.left - mLabelSeparation, mAxisYPositionsBuffer[i] + mLabelHeight / 2, mLabelTextPaint); } }
From source file:com.android.ex.chips.RecipientEditTextView.java
private Bitmap createUnselectedChip(final RecipientEntry contact, final TextPaint paint, final boolean leaveBlankIconSpacer) { // Ellipsize the text so that it takes AT MOST the entire width of the // autocomplete text entry area. Make sure to leave space for padding // on the sides. final int height = (int) mChipHeight; int iconWidth = height; final float[] widths = new float[1]; paint.getTextWidths(" ", widths); final float availableWidth = calculateAvailableWidth(); final String chipDisplayText = createChipDisplayText(contact); final CharSequence ellipsizedText = ellipsizeText(chipDisplayText, paint, availableWidth - iconWidth - widths[0]); // Make sure there is a minimum chip width so the user can ALWAYS // tap a chip without difficulty. final int width = Math.max(iconWidth * 2, (int) Math.floor(paint.measureText(ellipsizedText, 0, ellipsizedText.length())) + mChipPadding * 2 + iconWidth);/*from w ww .j a va 2 s .com*/ // Create the background of the chip. final Bitmap tmpBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); final Canvas canvas = new Canvas(tmpBitmap); final Drawable background = getChipBackground(contact); if (background != null) { background.setBounds(0, 0, width, height); background.draw(canvas); // Don't draw photos for recipients that have been typed in OR generated on the fly. final long contactId = contact.getContactId(); final boolean drawPhotos = isPhoneQuery() ? contactId != RecipientEntry.INVALID_CONTACT : contactId != RecipientEntry.INVALID_CONTACT && contactId != RecipientEntry.GENERATED_CONTACT && !TextUtils.isEmpty(contact.getDisplayName()); if (drawPhotos) { byte[] photoBytes = contact.getPhotoBytes(); // There may not be a photo yet if anything but the first contact address // was selected. if (photoBytes == null && contact.getPhotoThumbnailUri() != null) { // TODO: cache this in the recipient entry? getAdapter().fetchPhoto(contact, contact.getPhotoThumbnailUri()); photoBytes = contact.getPhotoBytes(); } Bitmap photo; if (photoBytes != null) photo = BitmapFactory.decodeByteArray(photoBytes, 0, photoBytes.length); else // TODO: can the scaled down default photo be cached? photo = mDefaultContactPhoto; // Draw the photo on the left side. if (photo != null) { final RectF src = new RectF(0, 0, photo.getWidth(), photo.getHeight()); final Rect backgroundPadding = new Rect(); mChipBackground.getPadding(backgroundPadding); final RectF dst = new RectF(width - iconWidth + backgroundPadding.left, 0 + backgroundPadding.top, width - backgroundPadding.right, height - backgroundPadding.bottom); final Matrix matrix = new Matrix(); matrix.setRectToRect(src, dst, Matrix.ScaleToFit.FILL); canvas.drawBitmap(photo, matrix, paint); } } else if (!leaveBlankIconSpacer || isPhoneQuery()) iconWidth = 0; paint.setColor(ContextCompat.getColor(getContext(), android.R.color.black)); // Vertically center the text in the chip. canvas.drawText(ellipsizedText, 0, ellipsizedText.length(), mChipPadding, getTextYOffset((String) ellipsizedText, paint, height), paint); } else Log.w(TAG, "Unable to draw a background for the chips as it was never set"); return tmpBitmap; }
From source file:com.ex.english.viewpagerindicator.TitlePageIndicator.java
@Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); if (mViewPager == null) { return;//w w w . j ava2s .c om } final int count = mViewPager.getAdapter().getCount(); if (count == 0) { return; } // mCurrentPage is -1 on first start and after orientation changed. If so, retrieve the correct index from viewpager. if (mCurrentPage == -1 && mViewPager != null) mCurrentPage = mViewPager.getCurrentItem(); //Calculate views bounds ArrayList<Rect> bounds = calculateAllBounds(mPaintText); final int boundsSize = bounds.size(); //Make sure we're on a page that still exists if (mCurrentPage >= boundsSize) { setCurrentItem(boundsSize - 1); return; } final int countMinusOne = count - 1; final float halfWidth = getWidth() / 2f; final int left = getLeft(); final float leftClip = left + mClipPadding; final int width = getWidth(); final int height = getHeight(); final int right = left + width; final float rightClip = right - mClipPadding; int page = mCurrentPage; float offsetPercent; if (mPageOffset <= 0.5) { offsetPercent = mPageOffset; } else { page += 1; offsetPercent = 1 - mPageOffset; } final boolean currentSelected = (offsetPercent <= SELECTION_FADE_PERCENTAGE); final boolean currentBold = (offsetPercent <= BOLD_FADE_PERCENTAGE); final float selectedPercent = (SELECTION_FADE_PERCENTAGE - offsetPercent) / SELECTION_FADE_PERCENTAGE; //Verify if the current view must be clipped to the screen Rect curPageBound = bounds.get(mCurrentPage); float curPageWidth = curPageBound.right - curPageBound.left; if (curPageBound.left < leftClip) { //Try to clip to the screen (left side) clipViewOnTheLeft(curPageBound, curPageWidth, left); } if (curPageBound.right > rightClip) { //Try to clip to the screen (right side) clipViewOnTheRight(curPageBound, curPageWidth, right); } //Left views starting from the current position if (mCurrentPage > 0) { for (int i = mCurrentPage - 1; i >= 0; i--) { Rect bound = bounds.get(i); //Is left side is outside the screen if (bound.left < leftClip) { int w = bound.right - bound.left; //Try to clip to the screen (left side) clipViewOnTheLeft(bound, w, left); //Except if there's an intersection with the right view Rect rightBound = bounds.get(i + 1); //Intersection if (bound.right + mTitlePadding > rightBound.left) { bound.left = (int) (rightBound.left - w - mTitlePadding); bound.right = bound.left + w; } } } } //Right views starting from the current position if (mCurrentPage < countMinusOne) { for (int i = mCurrentPage + 1; i < count; i++) { Rect bound = bounds.get(i); //If right side is outside the screen if (bound.right > rightClip) { int w = bound.right - bound.left; //Try to clip to the screen (right side) clipViewOnTheRight(bound, w, right); //Except if there's an intersection with the left view Rect leftBound = bounds.get(i - 1); //Intersection if (bound.left - mTitlePadding < leftBound.right) { bound.left = (int) (leftBound.right + mTitlePadding); bound.right = bound.left + w; } } } } //Now draw views int colorTextAlpha = mColorText >>> 24; for (int i = 0; i < count; i++) { //Get the title Rect bound = bounds.get(i); //Only if one side is visible if ((bound.left > left && bound.left < right) || (bound.right > left && bound.right < right)) { final boolean currentPage = (i == page); final CharSequence pageTitle = getTitle(i); //Only set bold if we are within bounds mPaintText.setFakeBoldText(currentPage && currentBold && mBoldText); //Draw text as unselected mPaintText.setColor(mColorText); if (currentPage && currentSelected) { //Fade out/in unselected text as the selected text fades in/out mPaintText.setAlpha(colorTextAlpha - (int) (colorTextAlpha * selectedPercent)); } canvas.drawText(pageTitle, 0, pageTitle.length(), bound.left, bound.bottom + mTopPadding, mPaintText); //If we are within the selected bounds draw the selected text if (currentPage && currentSelected) { mPaintText.setColor(mColorSelected); mPaintText.setAlpha((int) ((mColorSelected >>> 24) * selectedPercent)); canvas.drawText(pageTitle, 0, pageTitle.length(), bound.left, bound.bottom + mTopPadding, mPaintText); } } } //Draw the footer line mPath.reset(); mPath.moveTo(0, height - mFooterLineHeight / 2f); mPath.lineTo(width, height - mFooterLineHeight / 2f); mPath.close(); canvas.drawPath(mPath, mPaintFooterLine); switch (mFooterIndicatorStyle) { case Triangle: mPath.reset(); mPath.moveTo(halfWidth, height - mFooterLineHeight - mFooterIndicatorHeight); mPath.lineTo(halfWidth + mFooterIndicatorHeight, height - mFooterLineHeight); mPath.lineTo(halfWidth - mFooterIndicatorHeight, height - mFooterLineHeight); mPath.close(); canvas.drawPath(mPath, mPaintFooterIndicator); break; case Underline: if (!currentSelected || page >= boundsSize) { break; } Rect underlineBounds = bounds.get(page); mPath.reset(); mPath.moveTo(underlineBounds.left - mFooterIndicatorUnderlinePadding, height - mFooterLineHeight); mPath.lineTo(underlineBounds.right + mFooterIndicatorUnderlinePadding, height - mFooterLineHeight); mPath.lineTo(underlineBounds.right + mFooterIndicatorUnderlinePadding, height - mFooterLineHeight - mFooterIndicatorHeight); mPath.lineTo(underlineBounds.left - mFooterIndicatorUnderlinePadding, height - mFooterLineHeight - mFooterIndicatorHeight); mPath.close(); mPaintFooterIndicator.setAlpha((int) (0xFF * selectedPercent)); canvas.drawPath(mPath, mPaintFooterIndicator); mPaintFooterIndicator.setAlpha(0xFF); break; } }
From source file:com.viewpagerindicator.TitlePageIndicator.java
@Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); if (mViewPager == null) { return;/*ww w . j a v a2s . c o m*/ } final int count = mViewPager.getAdapter().getCount(); if (count == 0) { return; } // mCurrentPage is -1 on first start and after orientation changed. If so, retrieve the correct index from viewpager. if (mCurrentPage == -1 && mViewPager != null) mCurrentPage = mViewPager.getCurrentItem(); //Calculate views bounds ArrayList<Rect> bounds = calculateAllBounds(mPaintText); final int boundsSize = bounds.size(); //Make sure we're on a page that still exists if (mCurrentPage >= boundsSize) { setCurrentItem(boundsSize - 1); return; } final int countMinusOne = count - 1; final float halfWidth = getWidth() / 2f; final int left = getLeft(); final float leftClip = left + mClipPadding; final int width = getWidth(); final int height = getHeight(); final int right = left + width; final float rightClip = right - mClipPadding; int page = mCurrentPage; float offsetPercent; if (mPageOffset <= 0.5) { offsetPercent = mPageOffset; } else { page += 1; offsetPercent = 1 - mPageOffset; } final boolean currentSelected = (offsetPercent <= SELECTION_FADE_PERCENTAGE); final boolean currentBold = (offsetPercent <= BOLD_FADE_PERCENTAGE); final float selectedPercent = (SELECTION_FADE_PERCENTAGE - offsetPercent) / SELECTION_FADE_PERCENTAGE; //Verify if the current view must be clipped to the screen Rect curPageBound = bounds.get(mCurrentPage); float curPageWidth = curPageBound.right - curPageBound.left; if (curPageBound.left < leftClip) { //Try to clip to the screen (left side) clipViewOnTheLeft(curPageBound, curPageWidth, left); } if (curPageBound.right > rightClip) { //Try to clip to the screen (right side) clipViewOnTheRight(curPageBound, curPageWidth, right); } //Left views starting from the current position if (mCurrentPage > 0) { for (int i = mCurrentPage - 1; i >= 0; i--) { Rect bound = bounds.get(i); //Is left side is outside the screen if (bound.left < leftClip) { int w = bound.right - bound.left; //Try to clip to the screen (left side) clipViewOnTheLeft(bound, w, left); //Except if there's an intersection with the right view Rect rightBound = bounds.get(i + 1); //Intersection if (bound.right + mTitlePadding > rightBound.left) { bound.left = (int) (rightBound.left - w - mTitlePadding); bound.right = bound.left + w; } } } } //Right views starting from the current position if (mCurrentPage < countMinusOne) { for (int i = mCurrentPage + 1; i < count; i++) { Rect bound = bounds.get(i); //If right side is outside the screen if (bound.right > rightClip) { int w = bound.right - bound.left; //Try to clip to the screen (right side) clipViewOnTheRight(bound, w, right); //Except if there's an intersection with the left view Rect leftBound = bounds.get(i - 1); //Intersection if (bound.left - mTitlePadding < leftBound.right) { bound.left = (int) (leftBound.right + mTitlePadding); bound.right = bound.left + w; } } } } //Now draw views int colorTextAlpha = mColorText >>> 24; for (int i = 0; i < count; i++) { //Get the title Rect bound = bounds.get(i); //Only if one side is visible if ((bound.left > left && bound.left < right) || (bound.right > left && bound.right < right)) { final boolean currentPage = (i == page); final CharSequence pageTitle = getTitle(i); //Only set bold if we are within bounds mPaintText.setFakeBoldText(currentPage && currentBold && mBoldText); //Draw text as unselected mPaintText.setColor(mColorText); if (currentPage && currentSelected) { //Fade out/in unselected text as the selected text fades in/out mPaintText.setAlpha(colorTextAlpha - (int) (colorTextAlpha * selectedPercent)); } canvas.drawText(pageTitle, 0, pageTitle.length(), bound.left, bound.bottom + mTopPadding, mPaintText); //If we are within the selected bounds draw the selected text if (currentPage && currentSelected) { mPaintText.setColor(mColorSelected); mPaintText.setAlpha((int) ((mColorSelected >>> 24) * selectedPercent)); canvas.drawText(pageTitle, 0, pageTitle.length(), bound.left, bound.bottom + mTopPadding, mPaintText); } } } //Draw the footer line mPath.reset(); mPath.moveTo(0, height - mFooterLineHeight / 2f); mPath.lineTo(width, height - mFooterLineHeight / 2f); mPath.close(); canvas.drawPath(mPath, mPaintFooterLine); switch (mFooterIndicatorStyle) { case Triangle: mPath.reset(); mPath.moveTo(halfWidth, height - mFooterLineHeight - mFooterIndicatorHeight); mPath.lineTo(halfWidth + mFooterIndicatorHeight, height - mFooterLineHeight); mPath.lineTo(halfWidth - mFooterIndicatorHeight, height - mFooterLineHeight); mPath.close(); canvas.drawPath(mPath, mPaintFooterIndicator); break; case Underline: if (!currentSelected || page >= boundsSize) { break; } Rect underlineBounds = bounds.get(page); mPath.reset(); mPath.moveTo(underlineBounds.left - mFooterIndicatorUnderlinePadding, height - mFooterLineHeight); mPath.lineTo(underlineBounds.right + mFooterIndicatorUnderlinePadding, height - mFooterLineHeight); mPath.lineTo(underlineBounds.right + mFooterIndicatorUnderlinePadding, height - mFooterLineHeight - mFooterIndicatorHeight); mPath.lineTo(underlineBounds.left - mFooterIndicatorUnderlinePadding, height - mFooterLineHeight - mFooterIndicatorHeight); mPath.close(); mPaintFooterIndicator.setAlpha((int) (0xFF * selectedPercent)); canvas.drawPath(mPath, mPaintFooterIndicator); mPaintFooterIndicator.setAlpha(0xFF); break; case None: default: break; // To keep the Linter happy } }
From source file:indrora.atomic.indicator.ConversationTitlePageIndicator.java
@Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); if (mViewPager == null) { return;/*from w ww. j av a 2 s .c om*/ } final int count = mViewPager.getAdapter().getCount(); if (count == 0) { return; } // mCurrentPage is -1 on first start and after orientation changed. If so, retrieve the correct index from viewpager. if (mCurrentPage == -1 && mViewPager != null) { mCurrentPage = mViewPager.getCurrentItem(); } //Calculate views bounds ArrayList<Rect> bounds = calculateAllBounds(mPaintText); final int boundsSize = bounds.size(); //Make sure we're on a page that still exists if (mCurrentPage >= boundsSize) { setCurrentItem(boundsSize - 1); return; } final int countMinusOne = count - 1; final float halfWidth = getWidth() / 2f; final int left = getLeft(); final float leftClip = left + mClipPadding; final int width = getWidth(); final int height = getHeight(); final int right = left + width; final float rightClip = right - mClipPadding; int page = mCurrentPage; float offsetPercent; if (mPageOffset <= 0.5) { offsetPercent = mPageOffset; } else { page += 1; offsetPercent = 1 - mPageOffset; } final boolean currentSelected = (offsetPercent <= SELECTION_FADE_PERCENTAGE); final boolean currentBold = (offsetPercent <= BOLD_FADE_PERCENTAGE); final float selectedPercent = (SELECTION_FADE_PERCENTAGE - offsetPercent) / SELECTION_FADE_PERCENTAGE; //Verify if the current view must be clipped to the screen Rect curPageBound = bounds.get(mCurrentPage); float curPageWidth = curPageBound.right - curPageBound.left; if (curPageBound.left < leftClip) { //Try to clip to the screen (left side) clipViewOnTheLeft(curPageBound, curPageWidth, left); } if (curPageBound.right > rightClip) { //Try to clip to the screen (right side) clipViewOnTheRight(curPageBound, curPageWidth, right); } //Left views starting from the current position if (mCurrentPage > 0) { for (int i = mCurrentPage - 1; i >= 0; i--) { Rect bound = bounds.get(i); //Is left side is outside the screen if (bound.left < leftClip) { int w = bound.right - bound.left; //Try to clip to the screen (left side) clipViewOnTheLeft(bound, w, left); //Except if there's an intersection with the right view Rect rightBound = bounds.get(i + 1); //Intersection if (bound.right + mTitlePadding > rightBound.left) { bound.left = (int) (rightBound.left - w - mTitlePadding); bound.right = bound.left + w; } } } } //Right views starting from the current position if (mCurrentPage < countMinusOne) { for (int i = mCurrentPage + 1; i < count; i++) { Rect bound = bounds.get(i); //If right side is outside the screen if (bound.right > rightClip) { int w = bound.right - bound.left; //Try to clip to the screen (right side) clipViewOnTheRight(bound, w, right); //Except if there's an intersection with the left view Rect leftBound = bounds.get(i - 1); //Intersection if (bound.left - mTitlePadding < leftBound.right) { bound.left = (int) (leftBound.right + mTitlePadding); bound.right = bound.left + w; } } } } //Now draw views int colorTextAlpha = mColorText >>> 24; for (int i = 0; i < count; i++) { //Get the title Rect bound = bounds.get(i); //Only if one side is visible if ((bound.left > left && bound.left < right) || (bound.right > left && bound.right < right)) { final boolean currentPage = (i == page); final CharSequence pageTitle = getTitle(i); //Only set bold if we are within bounds mPaintText.setFakeBoldText(currentPage && currentBold && mBoldText); //Draw text as unselected mPaintText.setColor(currentPage ? mColorText : mStateProvider.getColorAt(i)); if (currentPage && currentSelected) { //Fade out/in unselected text as the selected text fades in/out mPaintText.setAlpha(colorTextAlpha - (int) (colorTextAlpha * selectedPercent)); } canvas.drawText(pageTitle, 0, pageTitle.length(), bound.left, bound.bottom + mTopPadding, mPaintText); //If we are within the selected bounds draw the selected text if (currentPage && currentSelected) { mPaintText.setColor(mColorSelected); mPaintText.setAlpha((int) ((mColorSelected >>> 24) * selectedPercent)); canvas.drawText(pageTitle, 0, pageTitle.length(), bound.left, bound.bottom + mTopPadding, mPaintText); } } } //Draw the footer line mPath.reset(); mPath.moveTo(0, height - mFooterLineHeight / 2f); mPath.lineTo(width, height - mFooterLineHeight / 2f); mPath.close(); canvas.drawPath(mPath, mPaintFooterLine); switch (mFooterIndicatorStyle) { case Triangle: mPath.reset(); mPath.moveTo(halfWidth, height - mFooterLineHeight - mFooterIndicatorHeight); mPath.lineTo(halfWidth + mFooterIndicatorHeight, height - mFooterLineHeight); mPath.lineTo(halfWidth - mFooterIndicatorHeight, height - mFooterLineHeight); mPath.close(); canvas.drawPath(mPath, mPaintFooterIndicator); break; case Underline: if (!currentSelected || page >= boundsSize) { break; } Rect underlineBounds = bounds.get(page); mPath.reset(); mPath.moveTo(underlineBounds.left - mFooterIndicatorUnderlinePadding, height - mFooterLineHeight); mPath.lineTo(underlineBounds.right + mFooterIndicatorUnderlinePadding, height - mFooterLineHeight); mPath.lineTo(underlineBounds.right + mFooterIndicatorUnderlinePadding, height - mFooterLineHeight - mFooterIndicatorHeight); mPath.lineTo(underlineBounds.left - mFooterIndicatorUnderlinePadding, height - mFooterLineHeight - mFooterIndicatorHeight); mPath.close(); mPaintFooterIndicator.setAlpha((int) (0xFF * selectedPercent)); canvas.drawPath(mPath, mPaintFooterIndicator); mPaintFooterIndicator.setAlpha(0xFF); break; case None: // Nothing to do here. break; } }
From source file:me.futuretechnology.util.ui.TitlePageIndicator.java
@Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); if (mViewPager == null) { return;/* www . ja v a2 s . c o m*/ } int count = mViewPager.getAdapter().getCount(); if (count == 0) { return; } // mCurrentPage is -1 on first start and after orientation changed. // if so, retrieve the correct index from viewpager. if (mCurrentPage == -1 && mViewPager != null) { mCurrentPage = mViewPager.getCurrentItem(); } // calculate views bounds ArrayList<Rect> bounds = calculateAllBounds(mPaintText); int boundsSize = bounds.size(); // make sure we're on a page that still exists if (mCurrentPage >= boundsSize) { setCurrentItem(boundsSize - 1); return; } int left = getLeft(); float leftClip = left + mClipPadding; int width = getWidth(); int height = getHeight(); // float halfWidth = width / 2f; int right = left + width; float rightClip = right - mClipPadding; int page = mCurrentPage; float offsetPercent; if (mPageOffset <= 0.5) { offsetPercent = mPageOffset; } else { page += 1; offsetPercent = 1 - mPageOffset; } boolean currentSelected = offsetPercent <= SELECTION_FADE_PERCENTAGE; boolean currentBold = offsetPercent <= BOLD_FADE_PERCENTAGE; float selectedPercent = (SELECTION_FADE_PERCENTAGE - offsetPercent) / SELECTION_FADE_PERCENTAGE; // Verify if the current view must be clipped to the screen Rect curPageBound = bounds.get(mCurrentPage); float curPageWidth = curPageBound.right - curPageBound.left; if (curPageBound.left < leftClip) { // Try to clip to the screen (left side) clipViewOnTheLeft(curPageBound, curPageWidth, left); } if (curPageBound.right > rightClip) { // Try to clip to the screen (right side) clipViewOnTheRight(curPageBound, curPageWidth, right); } // left views starting from the current position if (mCurrentPage > 0) { for (int i = mCurrentPage - 1; i >= 0; i--) { Rect bound = bounds.get(i); // if left side is outside the screen if (bound.left < leftClip) { int w = bound.right - bound.left; // try to clip to the screen (left side) clipViewOnTheLeft(bound, w, left); // except if there's an intersection with the right view Rect rightBound = bounds.get(i + 1); // intersection if (bound.right + mTitlePadding > rightBound.left) { bound.left = (int) (rightBound.left - w - mTitlePadding); bound.right = bound.left + w; } } } } // right views starting from the current position if (mCurrentPage < count - 1) { for (int i = mCurrentPage + 1; i < count; i++) { Rect bound = bounds.get(i); // if right side is outside the screen if (bound.right > rightClip) { int w = bound.right - bound.left; // try to clip to the screen (right side) clipViewOnTheRight(bound, w, right); // except if there's an intersection with the left view Rect leftBound = bounds.get(i - 1); // intersection if (bound.left - mTitlePadding < leftBound.right) { bound.left = (int) (leftBound.right + mTitlePadding); bound.right = bound.left + w; } } } } // Now draw views int colorTextAlpha = mColorText >>> 24; for (int i = 0; i < count; i++) { // Get the title Rect bound = bounds.get(i); // Only if one side is visible if (bound.left > left && bound.left < right || bound.right > left && bound.right < right) { boolean currentPage = i == page; CharSequence pageTitle = getTitle(i); // Only set bold if we are within bounds mPaintText.setFakeBoldText(currentPage && currentBold && mBoldText); // Draw text as unselected mPaintText.setColor(mColorText); if (currentPage && currentSelected) { // Fade out/in unselected text as the selected text fades in/out mPaintText.setAlpha(colorTextAlpha - (int) (colorTextAlpha * selectedPercent)); } // Except if there's an intersection with the right view if (i < boundsSize - 1) { Rect rightBound = bounds.get(i + 1); // Intersection if (bound.right + mTitlePadding > rightBound.left) { int w = bound.right - bound.left; bound.left = (int) (rightBound.left - w - mTitlePadding); bound.right = bound.left + w; } } canvas.drawText(pageTitle, 0, pageTitle.length(), bound.left, bound.bottom + mTopPadding, mPaintText); // If we are within the selected bounds draw the selected text if (currentPage && currentSelected) { mPaintText.setColor(mColorSelected); mPaintText.setAlpha((int) ((mColorSelected >>> 24) * selectedPercent)); canvas.drawText(pageTitle, 0, pageTitle.length(), bound.left, bound.bottom + mTopPadding, mPaintText); } } } // Draw the footer line if (mFooterLineHeight > 0) { mPath.reset(); mPath.moveTo(0, height - mFooterLineHeight / 2f); mPath.lineTo(width, height - mFooterLineHeight / 2f); mPath.close(); canvas.drawPath(mPath, mPaintFooterLine); } if (mFooterIndicatorHeight > 0) { if (!currentSelected || page >= boundsSize) { return; } Rect underlineBounds = bounds.get(page); float tempHeight = mFooterIndicatorHeight * selectedPercent - ((1 - selectedPercent) * mFooterIndicatorHeight) * 0.5f; mPath.reset(); mPath.moveTo(underlineBounds.left - mFooterIndicatorUnderlinePadding, height - mFooterLineHeight); mPath.lineTo(underlineBounds.right + mFooterIndicatorUnderlinePadding, height - mFooterLineHeight); mPath.lineTo(underlineBounds.right + mFooterIndicatorUnderlinePadding, height - mFooterLineHeight - tempHeight); mPath.lineTo(underlineBounds.left - mFooterIndicatorUnderlinePadding, height - mFooterLineHeight - tempHeight); mPath.close(); // mPaintFooterIndicator.setAlpha((int) (0xFF * selectedPercent)); canvas.drawPath(mPath, mPaintFooterIndicator); mPaintFooterIndicator.setAlpha(0xFF); } }
From source file:com.benefit.buy.library.viewpagerindicator.TitlePageIndicator.java
@Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); if (mViewPager == null) { return;//from w ww . ja v a 2s .c o m } final int count = mViewPager.getAdapter().getCount(); if (count == 0) { return; } // mCurrentPage is -1 on first start and after orientation changed. If so, retrieve the correct index from viewpager. if ((mCurrentPage == -1) && (mViewPager != null)) { mCurrentPage = mViewPager.getCurrentItem(); } //Calculate views bounds ArrayList<Rect> bounds = calculateAllBounds(mPaintText); final int boundsSize = bounds.size(); //Make sure we're on a page that still exists if (mCurrentPage >= boundsSize) { setCurrentItem(boundsSize - 1); return; } final int countMinusOne = count - 1; final float halfWidth = getWidth() / 2f; final int left = getLeft(); final float leftClip = left + mClipPadding; final int width = getWidth(); int height = getHeight(); final int right = left + width; final float rightClip = right - mClipPadding; int page = mCurrentPage; float offsetPercent; if (mPageOffset <= 0.5) { offsetPercent = mPageOffset; } else { page += 1; offsetPercent = 1 - mPageOffset; } final boolean currentSelected = (offsetPercent <= SELECTION_FADE_PERCENTAGE); final boolean currentBold = (offsetPercent <= BOLD_FADE_PERCENTAGE); final float selectedPercent = (SELECTION_FADE_PERCENTAGE - offsetPercent) / SELECTION_FADE_PERCENTAGE; //Verify if the current view must be clipped to the screen Rect curPageBound = bounds.get(mCurrentPage); float curPageWidth = curPageBound.right - curPageBound.left; if (curPageBound.left < leftClip) { //Try to clip to the screen (left side) clipViewOnTheLeft(curPageBound, curPageWidth, left); } if (curPageBound.right > rightClip) { //Try to clip to the screen (right side) clipViewOnTheRight(curPageBound, curPageWidth, right); } //Left views starting from the current position if (mCurrentPage > 0) { for (int i = mCurrentPage - 1; i >= 0; i--) { Rect bound = bounds.get(i); //Is left side is outside the screen if (bound.left < leftClip) { int w = bound.right - bound.left; //Try to clip to the screen (left side) clipViewOnTheLeft(bound, w, left); //Except if there's an intersection with the right view Rect rightBound = bounds.get(i + 1); //Intersection if ((bound.right + mTitlePadding) > rightBound.left) { bound.left = (int) (rightBound.left - w - mTitlePadding); bound.right = bound.left + w; } } } } //Right views starting from the current position if (mCurrentPage < countMinusOne) { for (int i = mCurrentPage + 1; i < count; i++) { Rect bound = bounds.get(i); //If right side is outside the screen if (bound.right > rightClip) { int w = bound.right - bound.left; //Try to clip to the screen (right side) clipViewOnTheRight(bound, w, right); //Except if there's an intersection with the left view Rect leftBound = bounds.get(i - 1); //Intersection if ((bound.left - mTitlePadding) < leftBound.right) { bound.left = (int) (leftBound.right + mTitlePadding); bound.right = bound.left + w; } } } } //Now draw views int colorTextAlpha = mColorText >>> 24; for (int i = 0; i < count; i++) { //Get the title Rect bound = bounds.get(i); //Only if one side is visible if (((bound.left > left) && (bound.left < right)) || ((bound.right > left) && (bound.right < right))) { final boolean currentPage = (i == page); final CharSequence pageTitle = getTitle(i); //Only set bold if we are within bounds mPaintText.setFakeBoldText(currentPage && currentBold && mBoldText); //Draw text as unselected mPaintText.setColor(mColorText); if (currentPage && currentSelected) { //Fade out/in unselected text as the selected text fades in/out mPaintText.setAlpha(colorTextAlpha - (int) (colorTextAlpha * selectedPercent)); } //Except if there's an intersection with the right view if (i < (boundsSize - 1)) { Rect rightBound = bounds.get(i + 1); //Intersection if ((bound.right + mTitlePadding) > rightBound.left) { int w = bound.right - bound.left; bound.left = (int) (rightBound.left - w - mTitlePadding); bound.right = bound.left + w; } } canvas.drawText(pageTitle, 0, pageTitle.length(), bound.left, bound.bottom + mTopPadding, mPaintText); //If we are within the selected bounds draw the selected text if (currentPage && currentSelected) { mPaintText.setColor(mColorSelected); mPaintText.setAlpha((int) ((mColorSelected >>> 24) * selectedPercent)); canvas.drawText(pageTitle, 0, pageTitle.length(), bound.left, bound.bottom + mTopPadding, mPaintText); } } } //If we want the line on the top change height to zero and invert the line height to trick the drawing code float footerLineHeight = mFooterLineHeight; float footerIndicatorLineHeight = mFooterIndicatorHeight; if (mLinePosition == LinePosition.Top) { height = 0; footerLineHeight = -footerLineHeight; footerIndicatorLineHeight = -footerIndicatorLineHeight; } //Draw the footer line mPath.reset(); mPath.moveTo(0, height - (footerLineHeight / 2f)); mPath.lineTo(width, height - (footerLineHeight / 2f)); mPath.close(); canvas.drawPath(mPath, mPaintFooterLine); float heightMinusLine = height - footerLineHeight; switch (mFooterIndicatorStyle) { case Triangle: mPath.reset(); mPath.moveTo(halfWidth, heightMinusLine - footerIndicatorLineHeight); mPath.lineTo(halfWidth + footerIndicatorLineHeight, heightMinusLine); mPath.lineTo(halfWidth - footerIndicatorLineHeight, heightMinusLine); mPath.close(); canvas.drawPath(mPath, mPaintFooterIndicator); break; case Underline: if (!currentSelected || (page >= boundsSize)) { break; } Rect underlineBounds = bounds.get(page); final float rightPlusPadding = underlineBounds.right + mFooterIndicatorUnderlinePadding; final float leftMinusPadding = underlineBounds.left - mFooterIndicatorUnderlinePadding; final float heightMinusLineMinusIndicator = heightMinusLine - footerIndicatorLineHeight; mPath.reset(); mPath.moveTo(leftMinusPadding, heightMinusLine); mPath.lineTo(rightPlusPadding, heightMinusLine); mPath.lineTo(rightPlusPadding, heightMinusLineMinusIndicator); mPath.lineTo(leftMinusPadding, heightMinusLineMinusIndicator); mPath.close(); mPaintFooterIndicator.setAlpha((int) (0xFF * selectedPercent)); canvas.drawPath(mPath, mPaintFooterIndicator); mPaintFooterIndicator.setAlpha(0xFF); break; } }
From source file:com.lovebridge.library.view.viewpagerindicator.TitlePageIndicator.java
@Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); if (mViewPager == null) { return;//ww w. j a v a 2 s . c o m } final int count = mViewPager.getAdapter().getCount(); if (count == 0) { return; } // mCurrentPage is -1 on first start and after orientation changed. If // so, retrieve the correct index from viewpager. if (mCurrentPage == -1 && mViewPager != null) { mCurrentPage = mViewPager.getCurrentItem(); } // Calculate views bounds ArrayList<Rect> bounds = calculateAllBounds(mPaintText); final int boundsSize = bounds.size(); // Make sure we're on a page that still exists if (mCurrentPage >= boundsSize) { setCurrentItem(boundsSize - 1); return; } final int countMinusOne = count - 1; final float halfWidth = getWidth() / 2f; final int left = getLeft(); final float leftClip = left + mClipPadding; final int width = getWidth(); int height = getHeight(); final int right = left + width; final float rightClip = right - mClipPadding; int page = mCurrentPage; float offsetPercent; if (mPageOffset <= 0.5) { offsetPercent = mPageOffset; } else { page += 1; offsetPercent = 1 - mPageOffset; } final boolean currentSelected = (offsetPercent <= SELECTION_FADE_PERCENTAGE); final boolean currentBold = (offsetPercent <= BOLD_FADE_PERCENTAGE); final float selectedPercent = (SELECTION_FADE_PERCENTAGE - offsetPercent) / SELECTION_FADE_PERCENTAGE; // Verify if the current view must be clipped to the screen Rect curPageBound = bounds.get(mCurrentPage); float curPageWidth = curPageBound.right - curPageBound.left; if (curPageBound.left < leftClip) { // Try to clip to the screen (left side) clipViewOnTheLeft(curPageBound, curPageWidth, left); } if (curPageBound.right > rightClip) { // Try to clip to the screen (right side) clipViewOnTheRight(curPageBound, curPageWidth, right); } // Left views starting from the current position if (mCurrentPage > 0) { for (int i = mCurrentPage - 1; i >= 0; i--) { Rect bound = bounds.get(i); // Is left side is outside the screen if (bound.left < leftClip) { int w = bound.right - bound.left; // Try to clip to the screen (left side) clipViewOnTheLeft(bound, w, left); // Except if there's an intersection with the right view Rect rightBound = bounds.get(i + 1); // Intersection if (bound.right + mTitlePadding > rightBound.left) { bound.left = (int) (rightBound.left - w - mTitlePadding); bound.right = bound.left + w; } } } } // Right views starting from the current position if (mCurrentPage < countMinusOne) { for (int i = mCurrentPage + 1; i < count; i++) { Rect bound = bounds.get(i); // If right side is outside the screen if (bound.right > rightClip) { int w = bound.right - bound.left; // Try to clip to the screen (right side) clipViewOnTheRight(bound, w, right); // Except if there's an intersection with the left view Rect leftBound = bounds.get(i - 1); // Intersection if (bound.left - mTitlePadding < leftBound.right) { bound.left = (int) (leftBound.right + mTitlePadding); bound.right = bound.left + w; } } } } // Now draw views int colorTextAlpha = mColorText >>> 24; for (int i = 0; i < count; i++) { // Get the title Rect bound = bounds.get(i); // Only if one side is visible if ((bound.left > left && bound.left < right) || (bound.right > left && bound.right < right)) { final boolean currentPage = (i == page); final CharSequence pageTitle = getTitle(i); // Only set bold if we are within bounds mPaintText.setFakeBoldText(currentPage && currentBold && mBoldText); // Draw text as unselected mPaintText.setColor(mColorText); if (currentPage && currentSelected) { // Fade out/in unselected text as the selected text fades // in/out mPaintText.setAlpha(colorTextAlpha - (int) (colorTextAlpha * selectedPercent)); } // Except if there's an intersection with the right view if (i < boundsSize - 1) { Rect rightBound = bounds.get(i + 1); // Intersection if (bound.right + mTitlePadding > rightBound.left) { int w = bound.right - bound.left; bound.left = (int) (rightBound.left - w - mTitlePadding); bound.right = bound.left + w; } } canvas.drawText(pageTitle, 0, pageTitle.length(), bound.left, bound.bottom + mTopPadding, mPaintText); // If we are within the selected bounds draw the selected text if (currentPage && currentSelected) { mPaintText.setColor(mColorSelected); mPaintText.setAlpha((int) ((mColorSelected >>> 24) * selectedPercent)); canvas.drawText(pageTitle, 0, pageTitle.length(), bound.left, bound.bottom + mTopPadding, mPaintText); } } } // If we want the line on the top change height to zero and invert the // line height to trick the drawing code float footerLineHeight = mFooterLineHeight; float footerIndicatorLineHeight = mFooterIndicatorHeight; if (mLinePosition == LinePosition.Top) { height = 0; footerLineHeight = -footerLineHeight; footerIndicatorLineHeight = -footerIndicatorLineHeight; } // Draw the footer line mPath.reset(); mPath.moveTo(0, height - footerLineHeight / 2f); mPath.lineTo(width, height - footerLineHeight / 2f); mPath.close(); canvas.drawPath(mPath, mPaintFooterLine); float heightMinusLine = height - footerLineHeight; switch (mFooterIndicatorStyle) { case Triangle: mPath.reset(); mPath.moveTo(halfWidth, heightMinusLine - footerIndicatorLineHeight); mPath.lineTo(halfWidth + footerIndicatorLineHeight, heightMinusLine); mPath.lineTo(halfWidth - footerIndicatorLineHeight, heightMinusLine); mPath.close(); canvas.drawPath(mPath, mPaintFooterIndicator); break; case Underline: if (!currentSelected || page >= boundsSize) { break; } Rect underlineBounds = bounds.get(page); final float rightPlusPadding = underlineBounds.right + mFooterIndicatorUnderlinePadding; final float leftMinusPadding = underlineBounds.left - mFooterIndicatorUnderlinePadding; final float heightMinusLineMinusIndicator = heightMinusLine - footerIndicatorLineHeight; mPath.reset(); mPath.moveTo(leftMinusPadding, heightMinusLine); mPath.lineTo(rightPlusPadding, heightMinusLine); mPath.lineTo(rightPlusPadding, heightMinusLineMinusIndicator); mPath.lineTo(leftMinusPadding, heightMinusLineMinusIndicator); mPath.close(); mPaintFooterIndicator.setAlpha((int) (0xFF * selectedPercent)); canvas.drawPath(mPath, mPaintFooterIndicator); mPaintFooterIndicator.setAlpha(0xFF); break; } }