private Dimension getTotalGap(Container container, DimensionInfo hInfo, DimensionInfo vInfo) {
Insets insets = getInsets(container);
return new Dimension(
insets.left
+ insets.right
+ countGap(hInfo, 0, hInfo.getCellCount())
+ this.myMargin.left
+ this.myMargin.right,
insets.top
+ insets.bottom
+ countGap(vInfo, 0, vInfo.getCellCount())
+ this.myMargin.top
+ this.myMargin.bottom);
}
private static boolean isCellEmpty(DimensionInfo info, int cellIndex) {
if (cellIndex >= 0 && cellIndex < info.getCellCount()) {
for (int i = 0; i < info.getComponentCount(); ++i) {
Component component = info.getComponent(i);
if (info.getCell(i) == cellIndex && !(component instanceof Spacer)) {
return false;
}
}
return true;
} else {
throw new IllegalArgumentException(
"wrong cellIndex: " + cellIndex + "; cellCount=" + info.getCellCount());
}
}
private int[] getMinOrPrefSizes(DimensionInfo info, boolean min) {
int[] widths = new int[info.getCellCount()];
int toProcess;
for (toProcess = 0; toProcess < widths.length; ++toProcess) {
widths[toProcess] = this.myMinCellSize;
}
for (toProcess = info.getComponentCount() - 1; toProcess >= 0; --toProcess) {
if (info.getSpan(toProcess) == 1) {
int i =
min
? getMin2(info, toProcess)
: Math.max(info.getMinimumWidth(toProcess), info.getPreferredWidth(toProcess));
int size = info.getCell(toProcess);
int span = countGap(info, size, info.getSpan(toProcess));
i = Math.max(i - span, 0);
widths[size] = Math.max(widths[size], i);
}
}
updateSizesFromChildren(info, min, widths);
boolean[] priority = new boolean[info.getCellCount()];
for (int i = info.getComponentCount() - 1; i >= 0; --i) {
int size =
min ? getMin2(info, i) : Math.max(info.getMinimumWidth(i), info.getPreferredWidth(i));
int span = info.getSpan(i);
int cell = info.getCell(i);
int gap = countGap(info, cell, span);
size = Math.max(size - gap, 0);
Arrays.fill(priority, false);
int curSize = 0;
for (int higherPriorityCells = 0; higherPriorityCells < span; ++higherPriorityCells) {
curSize += widths[higherPriorityCells + cell];
priority[higherPriorityCells + cell] = true;
}
if (curSize < size) {
boolean[] higherPriorityCells = new boolean[priority.length];
this.getCellsWithHigherPriorities(info, priority, higherPriorityCells, false, widths);
distribute(higherPriorityCells, info, size - curSize, widths);
}
}
return widths;
}
private void new_doIt(
int[] widths, int cell, int span, int minWidth, DimensionInfo info, boolean checkPrefs) {
int toDistribute = minWidth;
for (int allowedCells = cell; allowedCells < cell + span; ++allowedCells) {
toDistribute -= widths[allowedCells];
}
if (toDistribute > 0) {
boolean[] priority = new boolean[info.getCellCount()];
for (int higherPriorityCells = cell;
higherPriorityCells < cell + span;
++higherPriorityCells) {
priority[higherPriorityCells] = true;
}
boolean[] higherPriorityCells = new boolean[info.getCellCount()];
this.getCellsWithHigherPriorities(info, priority, higherPriorityCells, checkPrefs, widths);
distribute(higherPriorityCells, info, toDistribute, widths);
}
}
private static boolean shouldAddGapAfterCell(DimensionInfo info, int cellIndex) {
if (cellIndex >= 0 && cellIndex < info.getCellCount()) {
boolean endsInThis = false;
boolean startsInNext = false;
int indexOfNextNotEmpty = -1;
int i;
for (i = cellIndex + 1; i < info.getCellCount(); ++i) {
if (!isCellEmpty(info, i)) {
indexOfNextNotEmpty = i;
break;
}
}
for (i = 0; i < info.getComponentCount(); ++i) {
Component component = info.getComponent(i);
if (!(component instanceof Spacer)) {
if (info.componentBelongsCell(i, cellIndex)
&& DimensionInfo.findAlignedChild(component, info.getConstraints(i)) != null) {
return true;
}
if (info.getCell(i) == indexOfNextNotEmpty) {
startsInNext = true;
}
if (info.getCell(i) + info.getSpan(i) - 1 == cellIndex) {
endsInThis = true;
}
}
}
return startsInNext && endsInThis;
} else {
throw new IllegalArgumentException(
"wrong cellIndex: " + cellIndex + "; cellCount=" + info.getCellCount());
}
}
private static void distribute(
boolean[] higherPriorityCells, DimensionInfo info, int toDistribute, int[] widths) {
int stretches = 0;
int i;
for (i = 0; i < info.getCellCount(); ++i) {
if (higherPriorityCells[i]) {
stretches += info.getStretch(i);
}
}
i = toDistribute;
for (int i1 = 0; i1 < info.getCellCount(); ++i1) {
if (higherPriorityCells[i1]) {
int addon = i * info.getStretch(i1) / stretches;
widths[i1] += addon;
toDistribute -= addon;
}
}
if (toDistribute != 0) {
for (i = 0; i < info.getCellCount(); ++i) {
if (higherPriorityCells[i]) {
++widths[i];
--toDistribute;
if (toDistribute == 0) {
break;
}
}
}
}
if (toDistribute != 0) {
throw new IllegalStateException("toDistribute = " + toDistribute);
}
}
private static int[] getSameSizes(DimensionInfo info, int totalWidth) {
int[] widths = new int[info.getCellCount()];
int average = totalWidth / widths.length;
int rest = totalWidth % widths.length;
for (int i = 0; i < widths.length; ++i) {
widths[i] = average;
if (rest > 0) {
++widths[i];
--rest;
}
}
return widths;
}
public void layoutContainer(Container container) {
this.validateInfos(container);
LayoutState layoutState = this.myLayoutState;
DimensionInfo horizontalInfo = this.myHorizontalInfo;
DimensionInfo verticalInfo = this.myVerticalInfo;
Insets insets = getInsets(container);
int skipLayout = this.checkSetSizesFromParent(container, insets);
Dimension gap = this.getTotalGap(container, horizontalInfo, verticalInfo);
Dimension size = container.getSize();
size.width -= gap.width;
size.height -= gap.height;
Dimension prefSize = this.preferredLayoutSize(container);
prefSize.width -= gap.width;
prefSize.height -= gap.height;
Dimension minSize = this.minimumLayoutSize(container);
minSize.width -= gap.width;
minSize.height -= gap.height;
int[] i;
int c;
int component;
if ((skipLayout & 1) == 0) {
if (this.mySameSizeVertically) {
i = getSameSizes(verticalInfo, Math.max(size.height, minSize.height));
} else if (size.height < prefSize.height) {
i = this.getMinSizes(verticalInfo);
this.new_doIt(i, 0, verticalInfo.getCellCount(), size.height, verticalInfo, true);
} else {
i = this.getPrefSizes(verticalInfo);
this.new_doIt(i, 0, verticalInfo.getCellCount(), size.height, verticalInfo, false);
}
c = insets.top + this.myMargin.top;
for (component = 0; component < i.length; ++component) {
this.myYs[component] = c;
this.myHeights[component] = i[component];
c += i[component];
if (shouldAddGapAfterCell(verticalInfo, component)) {
c += verticalInfo.getGap();
}
}
}
if ((skipLayout & 2) == 0) {
if (this.mySameSizeHorizontally) {
i = getSameSizes(horizontalInfo, Math.max(size.width, minSize.width));
} else if (size.width < prefSize.width) {
i = this.getMinSizes(horizontalInfo);
this.new_doIt(i, 0, horizontalInfo.getCellCount(), size.width, horizontalInfo, true);
} else {
i = this.getPrefSizes(horizontalInfo);
this.new_doIt(i, 0, horizontalInfo.getCellCount(), size.width, horizontalInfo, false);
}
c = insets.left + this.myMargin.left;
for (component = 0; component < i.length; ++component) {
this.myXs[component] = c;
this.myWidths[component] = i[component];
c += i[component];
if (shouldAddGapAfterCell(horizontalInfo, component)) {
c += horizontalInfo.getGap();
}
}
}
for (int index = 0; index < layoutState.getComponentCount(); ++index) {
GridConstraints constraints = layoutState.getConstraints(index);
Component cmpnt = layoutState.getComponent(index);
int column = horizontalInfo.getCell(index);
int colSpan = horizontalInfo.getSpan(index);
int row = verticalInfo.getCell(index);
int rowSpan = verticalInfo.getSpan(index);
int cellWidth =
this.myXs[column + colSpan - 1] + this.myWidths[column + colSpan - 1] - this.myXs[column];
int cellHeight =
this.myYs[row + rowSpan - 1] + this.myHeights[row + rowSpan - 1] - this.myYs[row];
Dimension componentSize = new Dimension(cellWidth, cellHeight);
if ((constraints.getFill() & 1) == 0) {
componentSize.width =
Math.min(componentSize.width, horizontalInfo.getPreferredWidth(index));
}
if ((constraints.getFill() & 2) == 0) {
componentSize.height =
Math.min(componentSize.height, verticalInfo.getPreferredWidth(index));
}
Util.adjustSize(cmpnt, constraints, componentSize);
int dx = 0;
int dy = 0;
if ((constraints.getAnchor() & 4) != 0) {
dx = cellWidth - componentSize.width;
} else if ((constraints.getAnchor() & 8) == 0) {
dx = (cellWidth - componentSize.width) / 2;
}
if ((constraints.getAnchor() & 2) != 0) {
dy = cellHeight - componentSize.height;
} else if ((constraints.getAnchor() & 1) == 0) {
dy = (cellHeight - componentSize.height) / 2;
}
int indent = 10 * constraints.getIndent();
componentSize.width -= indent;
dx += indent;
cmpnt.setBounds(
this.myXs[column] + dx, this.myYs[row] + dy, componentSize.width, componentSize.height);
}
}