public final void testEqualsObject() {
Rect r = new Rect(3, 4, 20, 30);
assertFalse(r.equals(null));
assertFalse(r.equals(new Object()));
assertTrue(r.equals(new Rect(3, 4, 20, 30)));
}
public final void testGetBottomRight() {
Rect r = new Rect(3, 4, 20, 30);
Point p = r.getBottomRight();
assertEquals(3 + 20, p.x);
assertEquals(4 + 30, p.y);
}
public final void testGetCenter() {
Rect r = new Rect(3, 4, 20, 30);
Point p = r.getCenter();
assertEquals(3 + 20 / 2, p.x);
assertEquals(4 + 30 / 2, p.y);
}
public final void testCopy() {
Rect r = new Rect(1, 2, 3, 4);
Rect r2 = r.copy();
assertNotSame(r2, r);
assertEquals(r2, r);
}
public final void testGetTopLeft() {
Rect r = new Rect(3, 4, 20, 30);
Point p = r.getTopLeft();
assertEquals(3, p.x);
assertEquals(4, p.y);
}
public final void testCenter() {
Rect r = new Rect(10, 20, 30, 40);
Point center = r.center();
assertEquals(25, center.x);
assertEquals(40, center.y);
assertEquals(25, r.centerX());
assertEquals(40, r.centerY());
}
/**
* Computes a horizontal "gap" match - a preferred distance from the nearest edge, including
* margin edges
*/
private void addColumnGapMatch(
Rect bounds, int x1, int x2, List<GridMatch> columnMatches, int max) {
if (x1 < bounds.x + MARGIN_SIZE + max) {
int matchedLine = bounds.x + MARGIN_SIZE;
int distance = abs(matchedLine - x1);
if (distance <= max) {
boolean createCell = mGrid.getColumnX(mGrid.getColumn(matchedLine)) != matchedLine;
columnMatches.add(
new GridMatch(SegmentType.LEFT, distance, matchedLine, 0, createCell, MARGIN_SIZE));
}
} else if (x2 > bounds.x2() - MARGIN_SIZE - max) {
int matchedLine = bounds.x2() - MARGIN_SIZE;
int distance = abs(matchedLine - x2);
if (distance <= max) {
// This does not yet work properly; we need to use columnWeights to achieve this
// boolean createCell = mGrid.getColumnX(mGrid.getColumn(matchedLine)) != matchedLine;
// columnMatches.add(new GridMatch(SegmentType.RIGHT, distance, matchedLine,
// mGrid.actualColumnCount - 1, createCell, MARGIN_SIZE));
}
} else {
int columnRight = mGrid.getColumn(x1 - SHORT_GAP_DP);
int columnX = mGrid.getColumnMaxX(columnRight);
int matchedLine = columnX + SHORT_GAP_DP;
int distance = abs(matchedLine - x1);
if (distance <= max) {
boolean createCell = mGrid.getColumnX(mGrid.getColumn(matchedLine)) != matchedLine;
columnMatches.add(
new GridMatch(
SegmentType.LEFT, distance, matchedLine, columnRight, createCell, SHORT_GAP_DP));
}
// Add a column directly adjacent (no gap)
columnRight = mGrid.getColumn(x1);
columnX = mGrid.getColumnMaxX(columnRight);
matchedLine = columnX;
distance = abs(matchedLine - x1);
// Let's say you have this arrangement:
// [button1][button2]
// This is two columns, where the right hand side edge of column 1 is
// flush with the left side edge of column 2, because in fact the width of
// button1 is what defines the width of column 1, and that in turn is what
// defines the left side position of column 2.
//
// In this case we don't want to consider inserting a new column at the
// right hand side of button1 a better match than matching left on column 2.
// Therefore, to ensure that this doesn't happen, we "penalize" right column
// matches such that they don't get preferential treatment when the matching
// line is on the left side of the column.
distance += 2;
if (distance <= max) {
boolean createCell = mGrid.getColumnX(mGrid.getColumn(matchedLine)) != matchedLine;
columnMatches.add(
new GridMatch(SegmentType.LEFT, distance, matchedLine, columnRight, createCell, 0));
}
}
}
public final void testOffsetBy() {
Rect r = new Rect(3, 4, 20, 30);
Rect r2 = r.offsetBy(100, 200);
assertSame(r2, r);
assertEquals(103, r.x);
assertEquals(204, r.y);
assertEquals(20, r.w);
assertEquals(30, r.h);
}
public final void testMoveTo() {
Rect r = new Rect(3, 4, 20, 30);
Rect r2 = r.moveTo(100, 200);
assertSame(r2, r);
assertEquals(100, r.x);
assertEquals(200, r.y);
assertEquals(20, r.w);
assertEquals(30, r.h);
}
public final void testSetIntIntIntInt() {
Rect r = new Rect(1, 2, 3, 4);
Rect r2 = r.set(3, 4, 20, 30);
assertSame(r2, r);
assertEquals(3, r2.x);
assertEquals(4, r2.y);
assertEquals(20, r2.w);
assertEquals(30, r2.h);
}
public final void testSetRect() {
Rect r = new Rect(1, 2, 3, 4);
Rect r2 = new Rect(3, 4, 20, 30);
Rect r3 = r.set(r2);
assertSame(r3, r);
assertNotSame(r3, r2);
assertEquals(3, r.x);
assertEquals(4, r.y);
assertEquals(20, r.w);
assertEquals(30, r.h);
}
public final void testContainsPoint() {
Rect r = new Rect(3, 4, 20, 30);
assertTrue(r.contains(new Point(3, 4)));
assertTrue(r.contains(new Point(3 + 19, 4)));
assertTrue(r.contains(new Point(3 + 19, 4 + 29)));
assertTrue(r.contains(new Point(3, 4 + 29)));
assertFalse(r.contains(new Point(3 - 1, 4)));
assertFalse(r.contains(new Point(3, 4 - 1)));
assertFalse(r.contains(new Point(3 - 1, 4 - 1)));
assertFalse(r.contains(new Point(3 + 20, 4)));
assertFalse(r.contains(new Point(3 + 20, 4 + 30)));
assertFalse(r.contains(new Point(3, 4 + 30)));
}
public final void testHashCode() {
Rect r = new Rect(1, 2, 3, 4);
Rect r1 = new Rect(3, 4, 20, 30);
Rect r2 = new Rect(3, 4, 20, 30);
assertFalse(r1.hashCode() == r.hashCode());
assertEquals(r2.hashCode(), r1.hashCode());
}
/**
* Computes a vertical "gap" match - a preferred distance from the nearest edge, including margin
* edges
*/
private void addRowGapMatch(Rect bounds, int y1, int y2, List<GridMatch> rowMatches, int max) {
if (y1 < bounds.y + MARGIN_SIZE + max) {
int matchedLine = bounds.y + MARGIN_SIZE;
int distance = abs(matchedLine - y1);
if (distance <= max) {
boolean createCell = mGrid.getRowY(mGrid.getRow(matchedLine)) != matchedLine;
rowMatches.add(
new GridMatch(SegmentType.TOP, distance, matchedLine, 0, createCell, MARGIN_SIZE));
}
} else if (y2 > bounds.y2() - MARGIN_SIZE - max) {
int matchedLine = bounds.y2() - MARGIN_SIZE;
int distance = abs(matchedLine - y2);
if (distance <= max) {
// This does not yet work properly; we need to use columnWeights to achieve this
// boolean createCell = mGrid.getRowY(mGrid.getRow(matchedLine)) != matchedLine;
// rowMatches.add(new GridMatch(SegmentType.BOTTOM, distance, matchedLine,
// mGrid.actualRowCount - 1, createCell, MARGIN_SIZE));
}
} else {
int rowBottom = mGrid.getRow(y1 - SHORT_GAP_DP);
int rowY = mGrid.getRowMaxY(rowBottom);
int matchedLine = rowY + SHORT_GAP_DP;
int distance = abs(matchedLine - y1);
if (distance <= max) {
boolean createCell = mGrid.getRowY(mGrid.getRow(matchedLine)) != matchedLine;
rowMatches.add(
new GridMatch(
SegmentType.TOP, distance, matchedLine, rowBottom, createCell, SHORT_GAP_DP));
}
// Add a row directly adjacent (no gap)
rowBottom = mGrid.getRow(y1);
rowY = mGrid.getRowMaxY(rowBottom);
matchedLine = rowY;
distance = abs(matchedLine - y1);
distance += 2; // See explanation in addColumnGapMatch
if (distance <= max) {
boolean createCell = mGrid.getRowY(mGrid.getRow(matchedLine)) != matchedLine;
rowMatches.add(
new GridMatch(SegmentType.TOP, distance, matchedLine, rowBottom, createCell, 0));
}
}
}
public final void testIntersects() {
Rect r1 = new Rect(0, 0, 10, 10);
Rect r2 = new Rect(1, 1, 5, 5);
Rect r3 = new Rect(10, 0, 1, 1);
Rect r4 = new Rect(5, 5, 10, 10);
Rect r5 = new Rect(-1, 0, 1, 1);
Rect r6 = new Rect(0, 10, 1, 1);
assertTrue(r1.intersects(r2));
assertTrue(r2.intersects(r1));
assertTrue(r1.intersects(r4));
assertFalse(r1.intersects(r3));
assertFalse(r1.intersects(r5));
assertFalse(r1.intersects(r6));
}
public final void testEqualsObject_Invalid() {
Rect r = new Rect(3, 4, 20, 30);
assertTrue(r.isValid());
Rect i1 = new Rect(3, 4, 0, 0);
assertFalse(i1.isValid());
Rect i2 = new Rect(10, 20, 0, 0);
assertFalse(i2.isValid());
// valid rects can't be equal to invalid rects
assertFalse(r.equals(i1));
assertFalse(r.equals(i2));
// invalid rects are equal to each other whatever their content is
assertEquals(i2, i1);
}
public final void testIsValid() {
Rect r = new Rect();
assertFalse(r.isValid());
r = new Rect(1, 2, 3, 4);
assertTrue(r.isValid());
// Rectangles must have a width > 0 to be valid
r = new Rect(1, 2, 0, 4);
assertFalse(r.isValid());
r = new Rect(1, 2, -5, 4);
assertFalse(r.isValid());
// Rectangles must have a height > 0 to be valid
r = new Rect(1, 2, 3, 0);
assertFalse(r.isValid());
r = new Rect(1, 2, 3, -5);
assertFalse(r.isValid());
r = new Rect(1, 2, 0, 0);
assertFalse(r.isValid());
r = new Rect(1, 2, -20, -5);
assertFalse(r.isValid());
}
/** Adds a horizontal match with the center axis of the GridLayout */
private void addCenterColumnMatch(
Rect bounds, int x1, int y1, int x2, int y2, List<GridMatch> columnMatches, int max) {
Collection<INode> intersectsRow = mGrid.getIntersectsRow(y1, y2);
if (intersectsRow.size() == 0) {
// Offer centering on this row since there isn't anything there
int matchedLine = bounds.centerX();
int distance = abs((x1 + x2) / 2 - matchedLine);
if (distance <= 2 * max) {
boolean createCell = false; // always just put in column 0
columnMatches.add(
new GridMatch(
SegmentType.CENTER_HORIZONTAL,
distance,
matchedLine,
0 /* column */,
createCell,
UNDEFINED));
}
}
}
/**
* Computes the best horizontal and vertical matches for a drag to the given position.
*
* @param feedback a {@link DropFeedback} object containing drag state like the drag bounds and
* the drag baseline
* @param p the mouse position
*/
public void computeMatches(DropFeedback feedback, Point p) {
mRowMatch = mColumnMatch = null;
feedback.tooltip = null;
Rect bounds = mGrid.layout.getBounds();
int x1 = p.x;
int y1 = p.y;
Rect dragBounds = feedback.dragBounds;
int w = dragBounds != null ? dragBounds.w : 0;
int h = dragBounds != null ? dragBounds.h : 0;
if (!GridLayoutRule.sGridMode) {
if (dragBounds != null) {
// Sometimes the items are centered under the mouse so
// offset by the top left corner distance
x1 += dragBounds.x;
y1 += dragBounds.y;
}
int x2 = x1 + w;
int y2 = y1 + h;
if (x2 < bounds.x || y2 < bounds.y || x1 > bounds.x2() || y1 > bounds.y2()) {
return;
}
List<GridMatch> columnMatches = new ArrayList<GridMatch>();
List<GridMatch> rowMatches = new ArrayList<GridMatch>();
int max = BaseLayoutRule.getMaxMatchDistance();
// Column matches:
addLeftSideMatch(x1, columnMatches, max);
addRightSideMatch(x2, columnMatches, max);
addCenterColumnMatch(bounds, x1, y1, x2, y2, columnMatches, max);
// Row matches:
int row = (mGrid.getViewCount() == 0) ? 0 : mGrid.getClosestRow(y1);
int rowY = mGrid.getRowY(row);
addTopMatch(y1, rowMatches, max, row, rowY);
addBaselineMatch(feedback.dragBaseline, y1, rowMatches, max, row, rowY);
addBottomMatch(y2, rowMatches, max);
// Look for gap-matches: Predefined spacing between widgets.
// TODO: Make this use metadata for predefined spacing between
// pairs of types of components. For example, buttons have certain
// inserts in their 9-patch files (depending on the theme) that should
// be considered and subtracted from the overall proposed distance!
addColumnGapMatch(bounds, x1, x2, columnMatches, max);
addRowGapMatch(bounds, y1, y2, rowMatches, max);
// Fallback: Split existing cell. Also do snap-to-grid.
if (GridLayoutRule.sSnapToGrid) {
x1 = ((x1 - MARGIN_SIZE - bounds.x) / GRID_SIZE) * GRID_SIZE + MARGIN_SIZE + bounds.x;
y1 = ((y1 - MARGIN_SIZE - bounds.y) / GRID_SIZE) * GRID_SIZE + MARGIN_SIZE + bounds.y;
x2 = x1 + w;
y2 = y1 + h;
}
if (columnMatches.size() == 0 && x1 >= bounds.x) {
// Split the current cell since we have no matches
// TODO: Decide whether it should be gravity left or right...
columnMatches.add(
new GridMatch(
SegmentType.LEFT, 0, x1, mGrid.getColumn(x1), true /* createCell */, UNDEFINED));
}
if (rowMatches.size() == 0 && y1 >= bounds.y) {
rowMatches.add(
new GridMatch(
SegmentType.TOP, 0, y1, mGrid.getRow(y1), true /* createCell */, UNDEFINED));
}
// Pick best matches
Collections.sort(rowMatches);
Collections.sort(columnMatches);
mColumnMatch = null;
mRowMatch = null;
String columnDescription = null;
String rowDescription = null;
if (columnMatches.size() > 0) {
mColumnMatch = columnMatches.get(0);
columnDescription = mColumnMatch.getDisplayName(mGrid.layout);
}
if (rowMatches.size() > 0) {
mRowMatch = rowMatches.get(0);
rowDescription = mRowMatch.getDisplayName(mGrid.layout);
}
if (columnDescription != null && rowDescription != null) {
feedback.tooltip = columnDescription + '\n' + rowDescription;
}
feedback.invalidTarget = mColumnMatch == null || mRowMatch == null;
} else {
// Find which cell we're inside.
// TODO: Find out where within the cell we are, and offer to tweak the gravity
// based on the position.
int column = mGrid.getColumn(x1);
int row = mGrid.getRow(y1);
int leftDistance = mGrid.getColumnDistance(column, x1);
int rightDistance = mGrid.getColumnDistance(column + 1, x1);
int topDistance = mGrid.getRowDistance(row, y1);
int bottomDistance = mGrid.getRowDistance(row + 1, y1);
int SLOP = 2;
int radius = mRule.getNewCellSize();
if (rightDistance < radius + SLOP) {
column = Math.min(column + 1, mGrid.actualColumnCount);
leftDistance = rightDistance;
}
if (bottomDistance < radius + SLOP) {
row = Math.min(row + 1, mGrid.actualRowCount);
topDistance = bottomDistance;
}
boolean createColumn = leftDistance < radius + SLOP;
boolean createRow = topDistance < radius + SLOP;
if (x1 >= bounds.x2()) {
createColumn = true;
}
if (y1 >= bounds.y2()) {
createRow = true;
}
int cellWidth = leftDistance + rightDistance;
int cellHeight = topDistance + bottomDistance;
SegmentType horizontalType = SegmentType.LEFT;
SegmentType verticalType = SegmentType.TOP;
int minDistance = 10; // Don't center or right/bottom align in tiny cells
if (!createColumn
&& leftDistance > minDistance
&& dragBounds != null
&& dragBounds.w < cellWidth - 10) {
if (rightDistance < leftDistance) {
horizontalType = SegmentType.RIGHT;
}
int centerDistance = Math.abs(cellWidth / 2 - leftDistance);
if (centerDistance < leftDistance / 2 && centerDistance < rightDistance / 2) {
horizontalType = SegmentType.CENTER_HORIZONTAL;
}
}
if (!createRow
&& topDistance > minDistance
&& dragBounds != null
&& dragBounds.h < cellHeight - 10) {
if (bottomDistance < topDistance) {
verticalType = SegmentType.BOTTOM;
}
int centerDistance = Math.abs(cellHeight / 2 - topDistance);
if (centerDistance < topDistance / 2 && centerDistance < bottomDistance / 2) {
verticalType = SegmentType.CENTER_VERTICAL;
}
}
mColumnMatch = new GridMatch(horizontalType, 0, x1, column, createColumn, 0);
mRowMatch = new GridMatch(verticalType, 0, y1, row, createRow, 0);
StringBuilder description = new StringBuilder(50);
String rowString = Integer.toString(mColumnMatch.cellIndex + 1);
String columnString = Integer.toString(mRowMatch.cellIndex + 1);
if (mRowMatch.createCell && mRowMatch.cellIndex < mGrid.actualRowCount) {
description.append(String.format("Shift row %1$d down", mRowMatch.cellIndex + 1));
description.append('\n');
}
if (mColumnMatch.createCell && mColumnMatch.cellIndex < mGrid.actualColumnCount) {
description.append(String.format("Shift column %1$d right", mColumnMatch.cellIndex + 1));
description.append('\n');
}
description.append(String.format("Insert into cell (%1$s,%2$s)", rowString, columnString));
description.append('\n');
description.append(
String.format(
"Align %1$s, %2$s",
horizontalType.name().toLowerCase(Locale.US),
verticalType.name().toLowerCase(Locale.US)));
feedback.tooltip = description.toString();
}
}
public final void testContainsIntInt_Invalid() {
// Invalid rects always return false
Rect r = new Rect(3, 4, -20, -30);
assertFalse(r.contains(3, 4));
}
public final void testContainsRect_Null() {
// contains(null) returns false rather than an NPE
Rect r = new Rect(3, 4, -20, -30);
assertFalse(r.contains((Rect) null));
}
public final void testX2Y2() {
Rect r = new Rect(1, 2, 3, 4);
assertEquals(4, r.x2());
assertEquals(6, r.y2());
}
public final void testContainsRect() {
Rect r = new Rect(3, 4, 20, 30);
assertTrue(r.contains(new Rect(3, 4, 5, 10)));
assertFalse(r.contains(new Rect(3 - 1, 4, 5, 10)));
}
public final void testToString() {
Rect r = new Rect(3, 4, 20, 30);
assertEquals("Rect [(3,4)-(23,34): 20x30]", r.toString());
}
