List of usage examples for android.graphics Canvas restore
public void restore()
From source file:com.tct.mail.browse.ConversationItemView.java
@Override protected void onDraw(Canvas canvas) { // TS: jin.dongjin 2015-06-23 EMAIL BUGFIX_1015610 MOD_S if (mCoordinates == null) { LogUtils.e(LOG_TAG, "null coordinates in ConversationItemView#onDraw"); return;/*from w w w . j a v a2 s. c om*/ } // TS: jin.dongjin 2015-06-23 EMAIL BUGFIX_1015610 MOD_E Utils.traceBeginSection("CIVC.draw"); // Contact photo if (mGadgetMode == ConversationItemViewCoordinates.GADGET_CONTACT_PHOTO) { canvas.save(); Utils.traceBeginSection("draw senders image"); drawSendersImage(canvas); Utils.traceEndSection(); canvas.restore(); } //TS: yanhua.chen 2015-9-2 EMAIL CR_ID MOD_S // Subject. boolean isUnread = mHeader.unread; // Old style subject; apply text colors/ sizes/ styling. canvas.save(); if (mHeader.subjectDisplayLayout != null) { sPaint.setTextSize(mCoordinates.subjectFontSize); sPaint.setTypeface(Typeface.DEFAULT); // [FEATURE]-ADD-BEGIN by TSNJ,zhujian.shao,10/23/2014,FR-736411(porting from FR622697) canvas.translate(mSubjectWidth - mPriorityX, mCoordinates.subjectY + mHeader.subjectDisplayLayout.getTopPadding()); // [FEATURE]-ADD-END by TSNJ,zhujian.shao,10/23/2014,FR-736411 mHeader.subjectDisplayLayout.draw(canvas); } else { drawSubject(canvas); } canvas.restore(); // Sender. sPaint.setTypeface(Typeface.DEFAULT); canvas.save(); drawSenders(canvas); canvas.restore(); //TS: yanhua.chen 2015-9-2 EMAIL CR_ID MOD_E canvas.save(); drawSnippet(canvas); canvas.restore(); // Folders. if (mConfig.areFoldersVisible()) { mHeader.folderDisplayer.drawFolders(canvas, mCoordinates, ViewUtils.isViewRtl(this)); } // If this folder has a color (combined view/Email), show it here if (mConfig.isColorBlockVisible()) { sFoldersPaint.setColor(mHeader.conversation.color); sFoldersPaint.setStyle(Paint.Style.FILL); canvas.drawRect(mCoordinates.colorBlockX, mCoordinates.colorBlockY, mCoordinates.colorBlockX + mCoordinates.colorBlockWidth, mCoordinates.colorBlockY + mCoordinates.colorBlockHeight, sFoldersPaint); } // Draw the reply state. Draw nothing if neither replied nor forwarded. if (mConfig.isReplyStateVisible()) { if (mHeader.hasBeenRepliedTo && mHeader.hasBeenForwarded) { canvas.drawBitmap(STATE_REPLIED_AND_FORWARDED, mCoordinates.replyStateX, mCoordinates.replyStateY, null); } else if (mHeader.hasBeenRepliedTo) { canvas.drawBitmap(STATE_REPLIED, mCoordinates.replyStateX, mCoordinates.replyStateY, null); } else if (mHeader.hasBeenForwarded) { canvas.drawBitmap(STATE_FORWARDED, mCoordinates.replyStateX, mCoordinates.replyStateY, null); } else if (mHeader.isInvite) { canvas.drawBitmap(STATE_CALENDAR_INVITE, mCoordinates.replyStateX, mCoordinates.replyStateY, null); } } if (mConfig.isPersonalIndicatorVisible()) { canvas.drawBitmap(mHeader.personalLevelBitmap, mCoordinates.personalIndicatorX, mCoordinates.personalIndicatorY, null); } // Info icon if (mHeader.infoIcon != null) { canvas.drawBitmap(mHeader.infoIcon, mInfoIconX, mCoordinates.infoIconY, sPaint); } // Date. sPaint.setTextSize(mCoordinates.dateFontSize); sPaint.setTypeface(isUnread ? Typeface.SANS_SERIF : SANS_SERIF_LIGHT); sPaint.setColor(isUnread ? sDateTextColorUnread : sDateTextColorRead); drawText(canvas, mHeader.dateText, mDateX, mCoordinates.dateYBaseline, sPaint); //TS: yanhua.chen 2015-6-19 EMAIL BUGFIX_305581 MOD_S //TS: wenggangjin 2015-01-27 EMAIL BUGFIX_-888881 MOD_S //TS: wenggangjin 2015-01-15 EMAIL BUGFIX_886241 MOD_S // if (mHeader.conversation.hasAttachments && !mDisplayedFolder.isSearch()) { if (mHeader.conversation.hasAttachments) { mHeader.paperclip = ATTACHMENT; } else { mHeader.paperclip = null; } //TS: wenggangjin 2015-01-15 EMAIL BUGFIX_886241 MOD_E //TS: wenggangjin 2015-01-27 EMAIL BUGFIX_-888881 MOD_S //TS: yanhua.chen 2015-6-19 EMAIL BUGFIX_305581 MOD_E // Paper clip icon. if (mHeader.paperclip != null) { canvas.drawBitmap(mHeader.paperclip, mPaperclipX, mCoordinates.paperclipY, sPaint); } //[FEATURE]-Add-BEGIN by TSCD.chao zhang,04/17/2014,FR 631895(porting from FR514398) //priority icon Bitmap sPrio = sNormalPriorityIcon; mPriority = mHeader.conversation.flagPriority; if (mPriority == HIGH_PRIORITY) { sPrio = sHighPriorityIcon; } else if (mPriority == LOW_PRIORITY) { sPrio = sLowPriorityIcon; } // TS: zhaotianyong 2014-12-15 EMAIL BUGFIX_859814 ADD_S sPrio = resizeBitMap(sPrio, 0.6f, 0.6f); // TS: zhaotianyong 2014-12-15 EMAIL BUGFIX_859814 ADD_E canvas.drawBitmap(sPrio, mPriorityX, mCoordinates.paperclipY, null); //[FEATURE]-Add-END by TSCD.chao zhang if (mStarEnabled) { // Star. canvas.drawBitmap(getStarBitmap(), mCoordinates.starX, mCoordinates.starY, sPaint); } // right-side edge effect when in tablet conversation mode and the list is not collapsed if (Utils.getDisplayListRightEdgeEffect(mTabletDevice, mListCollapsible, mConfig.getViewMode())) { final boolean isRtl = ViewUtils.isViewRtl(this); RIGHT_EDGE_TABLET.setBounds((isRtl) ? 0 : getWidth() - RIGHT_EDGE_TABLET.getIntrinsicWidth(), 0, (isRtl) ? RIGHT_EDGE_TABLET.getIntrinsicWidth() : getWidth(), getHeight()); RIGHT_EDGE_TABLET.draw(canvas); if (isActivated()) { final int w = VISIBLE_CONVERSATION_HIGHLIGHT.getIntrinsicWidth(); VISIBLE_CONVERSATION_HIGHLIGHT.setBounds((isRtl) ? getWidth() - w : 0, 0, (isRtl) ? getWidth() : w, getHeight()); VISIBLE_CONVERSATION_HIGHLIGHT.draw(canvas); } } //TS: zheng.zou 2015-09-01 EMAIL BUGFIX_539892 MOD_S if (mWillDrawDivider) { // draw the inset divider sDividerPaint.setColor(sDividerColor); final int dividerBottomY = getHeight(); final int dividerTopY = dividerBottomY - sDividerHeight; // AM: Kexue.Geng 2015-02-28 EMAIL BUGFIX_900927 MOD_S // canvas.drawRect(sDividerInset, dividerTopY, getWidth(), dividerBottomY, sDividerPaint); canvas.drawRect(mGadgetMode == ConversationItemViewCoordinates.GADGET_NONE ? 0 : sDividerInset, dividerTopY, getWidth(), dividerBottomY, sDividerPaint); // AM: Kexue.Geng 2015-02-28 EMAIL BUGFIX_900927 MOD_E } //TS: zheng.zou 2015-09-01 EMAIL BUGFIX_539892 MOD_E Utils.traceEndSection(); // TS: chao.zhang 2015-09-14 EMAIL FEATURE-585337 ADD_S //draw the status canvas.save(); drawStatus(canvas); canvas.restore(); // TS: chao.zhang 2015-09-14 EMAIL FEATURE-585337 ADD_E }
From source file:org.connectbot.TerminalView.java
@Override public void onDraw(Canvas canvas) { if (bridge.bitmap != null) { // draw the bitmap bridge.onDraw();/*from www. ja v a 2 s . c o m*/ // draw the bridge bitmap if it exists canvas.drawBitmap(bridge.bitmap, 0, 0, paint); // also draw cursor if visible if (bridge.buffer.isCursorVisible()) { int cursorColumn = bridge.buffer.getCursorColumn(); final int cursorRow = bridge.buffer.getCursorRow(); final int columns = bridge.buffer.getColumns(); if (cursorColumn == columns) cursorColumn = columns - 1; if (cursorColumn < 0 || cursorRow < 0) return; int currentAttribute = bridge.buffer.getAttributes(cursorColumn, cursorRow); boolean onWideCharacter = (currentAttribute & VDUBuffer.FULLWIDTH) != 0; int x = cursorColumn * bridge.charWidth; int y = (bridge.buffer.getCursorRow() + bridge.buffer.screenBase - bridge.buffer.windowBase) * bridge.charHeight; // Save the current clip and translation canvas.save(); canvas.translate(x, y); canvas.clipRect(0, 0, bridge.charWidth * (onWideCharacter ? 2 : 1), bridge.charHeight); canvas.drawPaint(cursorPaint); final int deadKey = bridge.getKeyHandler().getDeadKey(); if (deadKey != 0) { canvas.drawText(new char[] { (char) deadKey }, 0, 1, 0, 0, cursorStrokePaint); } // Make sure we scale our decorations to the correct size. canvas.concat(scaleMatrix); int metaState = bridge.getKeyHandler().getMetaState(); if ((metaState & TerminalKeyListener.OUR_SHIFT_ON) != 0) canvas.drawPath(shiftCursor, cursorStrokePaint); else if ((metaState & TerminalKeyListener.OUR_SHIFT_LOCK) != 0) canvas.drawPath(shiftCursor, cursorPaint); if ((metaState & TerminalKeyListener.OUR_ALT_ON) != 0) canvas.drawPath(altCursor, cursorStrokePaint); else if ((metaState & TerminalKeyListener.OUR_ALT_LOCK) != 0) canvas.drawPath(altCursor, cursorPaint); if ((metaState & TerminalKeyListener.OUR_CTRL_ON) != 0) canvas.drawPath(ctrlCursor, cursorStrokePaint); else if ((metaState & TerminalKeyListener.OUR_CTRL_LOCK) != 0) canvas.drawPath(ctrlCursor, cursorPaint); // Restore previous clip region canvas.restore(); } // draw any highlighted area if (bridge.isSelectingForCopy()) { SelectionArea area = bridge.getSelectionArea(); canvas.save(Canvas.CLIP_SAVE_FLAG); canvas.clipRect(area.getLeft() * bridge.charWidth, area.getTop() * bridge.charHeight, (area.getRight() + 1) * bridge.charWidth, (area.getBottom() + 1) * bridge.charHeight); canvas.drawPaint(cursorPaint); canvas.restore(); } } }
From source file:com.marlonjones.voidlauncher.CellLayout.java
@Override protected void dispatchDraw(Canvas canvas) { super.dispatchDraw(canvas); for (int i = 0; i < mFolderBackgrounds.size(); i++) { FolderIcon.PreviewBackground bg = mFolderBackgrounds.get(i); if (bg.isClipping) { cellToPoint(bg.delegateCellX, bg.delegateCellY, mTempLocation); canvas.save();/* ww w . j a v a 2 s . c o m*/ canvas.translate(mTempLocation[0], mTempLocation[1]); bg.drawBackgroundStroke(canvas, mFolderBgPaint); canvas.restore(); } } }
From source file:kankan.wheel.widget.WheelView.java
/** * Draws items//w w w. ja v a 2 s . co m * @param canvas the canvas for drawing */ private void drawItems(Canvas canvas) { canvas.save(); int top = (currentItem - firstItem) * getItemHeight() + (getItemHeight() - getHeight()) / 2; canvas.translate(PADDING, -top + scrollingOffset); //?? AbstractWheelTextAdapter adapter = null; if (viewAdapter instanceof AbstractWheelTextAdapter) { adapter = (AbstractWheelTextAdapter) viewAdapter; } if (adapter != null && adapter.isEnableMultiTextColor()) { int targetIndex = -1; int minDis = Integer.MAX_VALUE; for (int i = 0; i < itemsLayout.getChildCount(); i++) { TextView child = (TextView) itemsLayout.getChildAt(i); int realTop = child.getTop() - top + scrollingOffset; int viewCenter = realTop + child.getHeight() / 2; Rect bounds = centerDrawable.getBounds(); int dis = Math.abs(viewCenter - bounds.centerY()); if (dis < minDis) { minDis = dis; targetIndex = i; } } for (int i = 0; i < itemsLayout.getChildCount(); i++) { TextView view = (TextView) itemsLayout.getChildAt(i); view.setAlpha(0.5f); view.setTextColor(adapter.getTextColor()); view.setTextSize(adapter.getTextSize()); adapter.setTextViewPadding(view, adapter.getTextPaddingTop(), adapter.getTextPaddingBottom()); } if (targetIndex != -1) { TextView view = (TextView) itemsLayout.getChildAt(targetIndex); view.setAlpha(1); view.setTextColor(adapter.getTextSelectedColor()); view.setTextSize(adapter.getTextSize() + 4); adapter.setTextViewPadding(view, adapter.getTextPaddingTop() - 2, adapter.getTextPaddingBottom() - 2); } TextView view = (TextView) itemsLayout.getChildAt(targetIndex - 1); if (view != null) view.setAlpha(1); view = (TextView) itemsLayout.getChildAt(targetIndex + 1); if (view != null) view.setAlpha(1); } itemsLayout.draw(canvas); canvas.restore(); }
From source file:org.telegram.ui.Components.ChatActivityEnterView.java
@Override protected boolean drawChild(Canvas canvas, View child, long drawingTime) { if (child == topView) { canvas.save();// ww w. j a v a 2s.c om canvas.clipRect(0, 0, getMeasuredWidth(), child.getLayoutParams().height + AndroidUtilities.dp(2)); } boolean result = super.drawChild(canvas, child, drawingTime); if (child == topView) { canvas.restore(); } return result; }
From source file:android.support.v7.graphics.drawable.DrawerArrowDrawable.java
@Override public void draw(Canvas canvas) { Rect bounds = getBounds();//ww w.j a v a 2 s. co m final boolean flipToPointRight; switch (mDirection) { case ARROW_DIRECTION_LEFT: flipToPointRight = false; break; case ARROW_DIRECTION_RIGHT: flipToPointRight = true; break; case ARROW_DIRECTION_END: flipToPointRight = DrawableCompat.getLayoutDirection(this) == ViewCompat.LAYOUT_DIRECTION_LTR; break; case ARROW_DIRECTION_START: default: flipToPointRight = DrawableCompat.getLayoutDirection(this) == ViewCompat.LAYOUT_DIRECTION_RTL; break; } // Interpolated widths of arrow bars float arrowHeadBarLength = (float) Math.sqrt(mArrowHeadLength * mArrowHeadLength * 2); arrowHeadBarLength = lerp(mBarLength, arrowHeadBarLength, mProgress); final float arrowShaftLength = lerp(mBarLength, mArrowShaftLength, mProgress); // Interpolated size of middle bar final float arrowShaftCut = Math.round(lerp(0, mMaxCutForBarSize, mProgress)); // The rotation of the top and bottom bars (that make the arrow head) final float rotation = lerp(0, ARROW_HEAD_ANGLE, mProgress); // The whole canvas rotates as the transition happens final float canvasRotate = lerp(flipToPointRight ? 0 : -180, flipToPointRight ? 180 : 0, mProgress); final float arrowWidth = Math.round(arrowHeadBarLength * Math.cos(rotation)); final float arrowHeight = Math.round(arrowHeadBarLength * Math.sin(rotation)); mPath.rewind(); final float topBottomBarOffset = lerp(mBarGap + mPaint.getStrokeWidth(), -mMaxCutForBarSize, mProgress); final float arrowEdge = -arrowShaftLength / 2; // draw middle bar mPath.moveTo(arrowEdge + arrowShaftCut, 0); mPath.rLineTo(arrowShaftLength - arrowShaftCut * 2, 0); // bottom bar mPath.moveTo(arrowEdge, topBottomBarOffset); mPath.rLineTo(arrowWidth, arrowHeight); // top bar mPath.moveTo(arrowEdge, -topBottomBarOffset); mPath.rLineTo(arrowWidth, -arrowHeight); mPath.close(); canvas.save(); // Rotate the whole canvas if spinning, if not, rotate it 180 to get // the arrow pointing the other way for RTL. final float barThickness = mPaint.getStrokeWidth(); final int remainingSpace = (int) (bounds.height() - barThickness * 3 - mBarGap * 2); float yOffset = (remainingSpace / 4) * 2; // making sure it is a multiple of 2. yOffset += barThickness * 1.5 + mBarGap; canvas.translate(bounds.centerX(), yOffset); if (mSpin) { canvas.rotate(canvasRotate * ((mVerticalMirror ^ flipToPointRight) ? -1 : 1)); } else if (flipToPointRight) { canvas.rotate(180); } canvas.drawPath(mPath, mPaint); canvas.restore(); }
From source file:com.commonsware.cwac.crossport.v7.graphics.drawable.DrawerArrowDrawable.java
@Override public void draw(Canvas canvas) { Rect bounds = getBounds();/*from www . ja v a2 s.c o m*/ final boolean flipToPointRight; switch (mDirection) { case ARROW_DIRECTION_LEFT: flipToPointRight = false; break; case ARROW_DIRECTION_RIGHT: flipToPointRight = true; break; case ARROW_DIRECTION_END: flipToPointRight = DrawableCompat.getLayoutDirection(this) == ViewCompat.LAYOUT_DIRECTION_LTR; break; case ARROW_DIRECTION_START: default: flipToPointRight = DrawableCompat.getLayoutDirection(this) == ViewCompat.LAYOUT_DIRECTION_RTL; break; } // Interpolated widths of arrow bars float arrowHeadBarLength = (float) Math.sqrt(mArrowHeadLength * mArrowHeadLength * 2); arrowHeadBarLength = lerp(mBarLength, arrowHeadBarLength, mProgress); final float arrowShaftLength = lerp(mBarLength, mArrowShaftLength, mProgress); // Interpolated size of middle bar final float arrowShaftCut = Math.round(lerp(0, mMaxCutForBarSize, mProgress)); // The rotation of the top and bottom bars (that make the arrow head) final float rotation = lerp(0, ARROW_HEAD_ANGLE, mProgress); // The whole canvas rotates as the transition happens final float canvasRotate = lerp(flipToPointRight ? 0 : -180, flipToPointRight ? 180 : 0, mProgress); final float arrowWidth = Math.round(arrowHeadBarLength * Math.cos(rotation)); final float arrowHeight = Math.round(arrowHeadBarLength * Math.sin(rotation)); mPath.rewind(); final float topBottomBarOffset = lerp(mBarGap + mPaint.getStrokeWidth(), -mMaxCutForBarSize, mProgress); final float arrowEdge = -arrowShaftLength / 2; // draw middle bar mPath.moveTo(arrowEdge + arrowShaftCut, 0); mPath.rLineTo(arrowShaftLength - arrowShaftCut * 2, 0); // bottom bar mPath.moveTo(arrowEdge, topBottomBarOffset); mPath.rLineTo(arrowWidth, arrowHeight); // top bar mPath.moveTo(arrowEdge, -topBottomBarOffset); mPath.rLineTo(arrowWidth, -arrowHeight); mPath.close(); canvas.save(); // Rotate the whole canvas if spinning, if not, rotate it 180 to get // the arrow pointing the other way for RTL. final float barThickness = mPaint.getStrokeWidth(); final int remainingSpace = (int) (bounds.height() - barThickness * 3 - mBarGap * 2); float yOffset = (remainingSpace / 4) * 2; // making sure it is a multiple of 2. yOffset += barThickness * 1.5f + mBarGap; canvas.translate(bounds.centerX(), yOffset); if (mSpin) { canvas.rotate(canvasRotate * ((mVerticalMirror ^ flipToPointRight) ? -1 : 1)); } else if (flipToPointRight) { canvas.rotate(180); } canvas.drawPath(mPath, mPaint); canvas.restore(); }
From source file:de.tum.in.tumcampus.auxiliary.calendar.DayView.java
@Override protected void onDraw(Canvas canvas) { if (mRemeasure) { remeasure(getWidth(), getHeight()); mRemeasure = false;/*ww w .j a va 2s .c o m*/ } canvas.save(); float yTranslate = -mViewStartY + DAY_HEADER_HEIGHT; // offset canvas by the current drag and header position canvas.translate(-mViewStartX, yTranslate); // clip to everything below the allDay area Rect dest = mDestRect; dest.top = (int) (mFirstCell - yTranslate); dest.bottom = (int) (mViewHeight - yTranslate); dest.left = 0; dest.right = mViewWidth; canvas.save(); canvas.clipRect(dest); // Draw the movable part of the view doDraw(canvas); // restore to having no clip canvas.restore(); if ((mTouchMode & TOUCH_MODE_HSCROLL) != 0) { float xTranslate; if (mViewStartX > 0) { xTranslate = mViewWidth; } else { xTranslate = -mViewWidth; } // Move the canvas around to prep it for the next view // specifically, shift it by a screen and undo the // yTranslation which will be redone in the nextView's onDraw(). canvas.translate(xTranslate, -yTranslate); DayView nextView = (DayView) mViewSwitcher.getNextView(); // Prevent infinite recursive calls to onDraw(). nextView.mTouchMode = TOUCH_MODE_INITIAL_STATE; nextView.onDraw(canvas); // Move it back for this view canvas.translate(-xTranslate, 0); } else { // If we drew another view we already translated it back // If we didn't draw another view we should be at the edge of the // screen canvas.translate(mViewStartX, -yTranslate); } // Draw the fixed areas (that don't scroll) directly to the canvas. drawAfterScroll(canvas); mComputeSelectedEvents = false; // Draw overscroll glow if (!mEdgeEffectTop.isFinished()) { if (DAY_HEADER_HEIGHT != 0) { canvas.translate(0, DAY_HEADER_HEIGHT); } if (mEdgeEffectTop.draw(canvas)) { invalidate(); } if (DAY_HEADER_HEIGHT != 0) { canvas.translate(0, -DAY_HEADER_HEIGHT); } } if (!mEdgeEffectBottom.isFinished()) { canvas.rotate(180, mViewWidth / 2, mViewHeight / 2); if (mEdgeEffectBottom.draw(canvas)) { invalidate(); } } canvas.restore(); }
From source file:org.akop.crosswords.view.CrosswordView.java
private void renderSelection(Canvas canvas, boolean clearSelection) { if (mSelectedWord == null) { return;//from www . j a v a2s .c o m } int startRow = mSelectedWord.getStartRow(); int endRow = startRow; int startColumn = mSelectedWord.getStartColumn(); int endColumn = startColumn; RectF cellRect = new RectF(); canvas.save(); canvas.scale(mRenderScale, mRenderScale); if (mSelectedWord.getDirection() == Crossword.Word.DIR_ACROSS) { endColumn += mSelectedWord.getLength() - 1; } else { endRow += mSelectedWord.getLength() - 1; } float top = mSelectedWord.getStartRow() * mCellSize; for (int row = startRow, index = 0; row <= endRow; row++, top += mCellSize) { float left = mSelectedWord.getStartColumn() * mCellSize; for (int column = startColumn; column <= endColumn; column++, left += mCellSize) { Cell cell = mPuzzleCells[row][column]; if (cell != null) { // Draw the unselected cell Paint paint; if (clearSelection) { paint = mCellFillPaint; } else { if (index == mSelectedCell) { paint = mSelectedCellFillPaint; } else { paint = mSelectedWordFillPaint; } } cellRect.set(left, top, left + mCellSize, top + mCellSize); renderCell(canvas, cell, cellRect, paint); } index++; } } canvas.restore(); }
From source file:com.brian.common.view.DrawerArrowDrawable.java
@Override public void draw(Canvas canvas) { if (mIsCirculate) { if (mProgress >= .995) { flipped = true;/*from ww w.j a va 2 s . co m*/ } else if (mProgress <= .005) { flipped = false; } if (flipped) { canvas.save(); canvas.scale(1f, -1f, getIntrinsicWidth() / 2, getIntrinsicHeight() / 2); } } Rect bounds = getBounds(); final boolean flipToPointRight; switch (mDirection) { case ARROW_DIRECTION_LEFT: flipToPointRight = false; break; case ARROW_DIRECTION_RIGHT: flipToPointRight = true; break; default: flipToPointRight = false; break; } // Interpolated widths of arrow bars float arrowHeadBarLength = (float) Math.sqrt(mArrowHeadLength * mArrowHeadLength * 2); arrowHeadBarLength = lerp(mBarLength, arrowHeadBarLength, mProgress); final float arrowShaftLength = lerp(mBarLength, mArrowShaftLength, mProgress); // Interpolated size of middle bar final float arrowShaftCut = Math.round(lerp(0, mMaxCutForBarSize, mProgress)); // The rotation of the top and bottom bars (that make the arrow head) final float rotation = lerp(0, ARROW_HEAD_ANGLE, mProgress); // The whole canvas rotates as the transition happens final float canvasRotate = lerp(flipToPointRight ? 0 : -180, flipToPointRight ? 180 : 0, mProgress); final float arrowWidth = Math.round(arrowHeadBarLength * Math.cos(rotation)); final float arrowHeight = Math.round(arrowHeadBarLength * Math.sin(rotation)); mPath.rewind(); final float topBottomBarOffset = lerp(mBarGap + mPaint.getStrokeWidth(), -mMaxCutForBarSize, mProgress); final float arrowEdge = -arrowShaftLength / 2; // draw middle bar mPath.moveTo(arrowEdge + arrowShaftCut, 0); mPath.rLineTo(arrowShaftLength - arrowShaftCut * 2, 0); // bottom bar mPath.moveTo(arrowEdge, topBottomBarOffset); mPath.rLineTo(arrowWidth, arrowHeight); // top bar mPath.moveTo(arrowEdge, -topBottomBarOffset); mPath.rLineTo(arrowWidth, -arrowHeight); mPath.close(); canvas.save(); // Rotate the whole canvas if spinning, if not, rotate it 180 to get // the arrow pointing the other way for RTL. final float barThickness = mPaint.getStrokeWidth(); final int remainingSpace = (int) (bounds.height() - barThickness * 3 - mBarGap * 2); float yOffset = (remainingSpace / 4) * 2; // making sure it is a multiple of 2. yOffset += barThickness * 1.5 + mBarGap; canvas.translate(bounds.centerX(), yOffset); if (mSpin) { canvas.rotate(canvasRotate * ((mVerticalMirror ^ flipToPointRight) ? -1 : 1)); } else if (flipToPointRight) { canvas.rotate(180); } canvas.drawPath(mPath, mPaint); canvas.restore(); }