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Draw timestamp information into BatteryChartView manually (1/2)

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screenshot: https://screenshot.googleplex.com/8zJcMJeMDovfhdD

Bug: 183921876
Test: make SettingsRoboTests
Change-Id: Ib4ac21ba2d12a6cb65b46ba3f1023fe9f14c539b
This commit is contained in:
ykhung
2021-04-27 13:19:41 +08:00
committed by YUKAI HUNG
parent 72ba46a9bb
commit 2f441d2a3e
3 changed files with 98 additions and 38 deletions
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130
src/com/android/settings/fuelgauge/BatteryChartView.java
View File

@@ -43,6 +43,7 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
// For drawing the percentage information.
private static final String[] PERCENTAGES = new String[] {"100%", "50%", "0%"};
private static final int DEFAULT_TRAPEZOID_COUNT = 12;
private static final int DEFAULT_TIMESTAMP_COUNT = 4;
/** Selects all trapezoid shapes. */
public static final int SELECTED_INDEX_ALL = -1;
public static final int SELECTED_INDEX_INVALID = -2;
@@ -65,14 +66,19 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
// For drawing the percentage information.
private int mTextPadding;
private final Rect mIndent = new Rect();
private final Rect[] mPercentageBound =
private final Rect[] mPercentageBounds =
new Rect[] {new Rect(), new Rect(), new Rect()};
// For drawing the timestamp information.
private String[] mTimestamps;
private final Rect[] mTimestampsBounds =
new Rect[] {new Rect(), new Rect(), new Rect(), new Rect()};
private int[] mLevels;
private Paint mTextPaint;
private Paint mDividerPaint;
private Paint mTrapezoidPaint;
private TrapezoidSlot[] mTrapezoidSlot;
private TrapezoidSlot[] mTrapezoidSlots;
// Records the location to calculate selected index.
private MotionEvent mTouchUpEvent;
private BatteryChartView.OnSelectListener mOnSelectListener;
@@ -95,10 +101,10 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
public void setTrapezoidCount(int trapezoidCount) {
Log.i(TAG, "trapezoidCount:" + trapezoidCount);
mTrapezoidCount = trapezoidCount;
mTrapezoidSlot = new TrapezoidSlot[trapezoidCount];
mTrapezoidSlots = new TrapezoidSlot[trapezoidCount];
// Allocates the trapezoid slot array.
for (int index = 0; index < trapezoidCount; index++) {
mTrapezoidSlot[index] = new TrapezoidSlot();
mTrapezoidSlots[index] = new TrapezoidSlot();
}
invalidate();
}
@@ -140,7 +146,6 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
/** Sets the companion {@link TextView} for percentage information. */
public void setCompanionTextView(TextView textView) {
requestLayout();
if (textView != null) {
// Pre-draws the view first to load style atttributions into paint.
textView.draw(new Canvas());
@@ -148,6 +153,17 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
} else {
mTextPaint = null;
}
requestLayout();
}
/** Sets timestamps for drawing into x-axis information. */
public void setTimestamps(String[] timestamps) {
mTimestamps = timestamps;
if (timestamps != null
&& timestamps.length != DEFAULT_TIMESTAMP_COUNT) {
mTimestamps = null;
}
requestLayout();
}
@Override
@@ -158,12 +174,22 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
for (int index = 0; index < PERCENTAGES.length; index++) {
mTextPaint.getTextBounds(
PERCENTAGES[index], 0, PERCENTAGES[index].length(),
mPercentageBound[index]);
mPercentageBounds[index]);
}
// Updates the indent configurations.
mIndent.top = mPercentageBound[0].height();
mIndent.right = mPercentageBound[0].width() + mTextPadding * 2;
Log.d(TAG, "setIndent:" + mPercentageBound[0]);
mIndent.top = mPercentageBounds[0].height();
mIndent.right = mPercentageBounds[0].width() + mTextPadding;
if (mTimestamps != null) {
for (int index = 0; index < DEFAULT_TIMESTAMP_COUNT; index++) {
mTextPaint.getTextBounds(
mTimestamps[index], 0, mTimestamps[index].length(),
mTimestampsBounds[index]);
}
mIndent.bottom = mTimestampsBounds[0].height()
+ round(mTextPadding * 1.5f);
}
Log.d(TAG, "setIndent:" + mPercentageBounds[0]);
} else {
mIndent.set(0, 0, 0, 0);
}
@@ -245,31 +271,28 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
// Draws the top divider line for 100% curve.
float offsetY = mIndent.top + mDividerWidth * .5f;
canvas.drawLine(0, offsetY, width, offsetY, mDividerPaint);
if (mTextPaint != null) {
canvas.drawText(
PERCENTAGES[0],
getWidth() - mPercentageBound[0].width(),
offsetY + mPercentageBound[0].height() *.5f , mTextPaint);
}
drawPercentage(canvas, /*index=*/ 0, offsetY);
// Draws the center divider line for 50% curve.
final float availableSpace =
height - mDividerWidth * 2 - mTrapezoidVOffset - mDividerHeight;
offsetY = mIndent.top + mDividerWidth + availableSpace * .5f;
canvas.drawLine(0, offsetY, width, offsetY, mDividerPaint);
if (mTextPaint != null) {
canvas.drawText(
PERCENTAGES[1],
getWidth() - mPercentageBound[1].width(),
offsetY + mPercentageBound[1].height() *.5f , mTextPaint);
}
drawPercentage(canvas, /*index=*/ 1, offsetY);
// Draws the bottom divider line for 0% curve.
offsetY = mIndent.top + (height - mDividerHeight - mDividerWidth * .5f);
canvas.drawLine(0, offsetY, width, offsetY, mDividerPaint);
drawPercentage(canvas, /*index=*/ 2, offsetY);
}
private void drawPercentage(Canvas canvas, int index, float offsetY) {
if (mTextPaint != null) {
canvas.drawText(
PERCENTAGES[2],
getWidth() - mPercentageBound[2].width(),
offsetY + mPercentageBound[2].height() *.5f , mTextPaint);
PERCENTAGES[index],
getWidth() - mPercentageBounds[index].width() - mPercentageBounds[index].left,
offsetY + mPercentageBounds[index].height() *.5f,
mTextPaint);
}
}
@@ -287,12 +310,49 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
canvas.drawLine(startX, startY, startX, bottomY, mDividerPaint);
final float nextX = startX + mDividerWidth + unitWidth;
// Updates the trapezoid slots for drawing.
if (index < mTrapezoidSlot.length) {
mTrapezoidSlot[index].mLeft = round(startX + trapezoidSlotOffset);
mTrapezoidSlot[index].mRight = round(nextX - trapezoidSlotOffset);
if (index < mTrapezoidSlots.length) {
mTrapezoidSlots[index].mLeft = round(startX + trapezoidSlotOffset);
mTrapezoidSlots[index].mRight = round(nextX - trapezoidSlotOffset);
}
startX = nextX;
}
// Draws the timestamp slot information.
if (mTimestamps != null) {
final float[] xOffsets = new float[DEFAULT_TIMESTAMP_COUNT];
final float baselineX = mDividerWidth * .5f;
final float offsetX = mDividerWidth + unitWidth;
for (int index = 0; index < DEFAULT_TIMESTAMP_COUNT; index++) {
xOffsets[index] = baselineX + index * offsetX * 4;
}
drawTimestamp(canvas, xOffsets);
}
}
private void drawTimestamp(Canvas canvas, float[] xOffsets) {
// Draws the 1st timestamp info.
canvas.drawText(
mTimestamps[0],
xOffsets[0] - mTimestampsBounds[0].left,
getTimestampY(0), mTextPaint);
// Draws the last timestamp info.
canvas.drawText(
mTimestamps[3],
xOffsets[3] - mTimestampsBounds[3].width() - mTimestampsBounds[3].left,
getTimestampY(3), mTextPaint);
// Draws the rest of timestamp info since it is located in the center.
for (int index = 1; index <= 2; index++) {
canvas.drawText(
mTimestamps[index],
xOffsets[index] -
(mTimestampsBounds[index].width() - mTimestampsBounds[index].left) * .5f,
getTimestampY(index), mTextPaint);
}
}
private int getTimestampY(int index) {
return getHeight() - mTimestampsBounds[index].height()
- mTimestampsBounds[index].top;
}
private void drawTrapezoids(Canvas canvas) {
@@ -320,13 +380,13 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
final float leftTop = round(trapezoidBottom - mLevels[index] * unitHeight);
final float rightTop = round(trapezoidBottom - mLevels[index + 1] * unitHeight);
trapezoidPath.reset();
trapezoidPath.moveTo(mTrapezoidSlot[index].mLeft, trapezoidBottom);
trapezoidPath.lineTo(mTrapezoidSlot[index].mLeft, leftTop);
trapezoidPath.lineTo(mTrapezoidSlot[index].mRight, rightTop);
trapezoidPath.lineTo(mTrapezoidSlot[index].mRight, trapezoidBottom);
trapezoidPath.moveTo(mTrapezoidSlots[index].mLeft, trapezoidBottom);
trapezoidPath.lineTo(mTrapezoidSlots[index].mLeft, leftTop);
trapezoidPath.lineTo(mTrapezoidSlots[index].mRight, rightTop);
trapezoidPath.lineTo(mTrapezoidSlots[index].mRight, trapezoidBottom);
// A tricky way to make the trapezoid shape drawing the rounded corner.
trapezoidPath.lineTo(mTrapezoidSlot[index].mLeft, trapezoidBottom);
trapezoidPath.lineTo(mTrapezoidSlot[index].mLeft, leftTop);
trapezoidPath.lineTo(mTrapezoidSlots[index].mLeft, trapezoidBottom);
trapezoidPath.lineTo(mTrapezoidSlots[index].mLeft, leftTop);
// Draws the trapezoid shape into canvas.
canvas.drawPath(trapezoidPath, mTrapezoidPaint);
}
@@ -334,8 +394,8 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
// Searches the corresponding trapezoid index from x location.
private int getTrapezoidIndex(float x) {
for (int index = 0; index < mTrapezoidSlot.length; index++) {
final TrapezoidSlot slot = mTrapezoidSlot[index];
for (int index = 0; index < mTrapezoidSlots.length; index++) {
final TrapezoidSlot slot = mTrapezoidSlots[index];
if (x >= slot.mLeft - mTrapezoidHOffset
&& x <= slot.mRight + mTrapezoidHOffset) {
return index;