public void addLayoutComponent(Component comp, Object constraints) {
GridConstraints c = (GridConstraints) constraints;
int row = c.getRow();
int rowSpan = c.getRowSpan();
int rowCount = this.getRowCount();
if (row >= 0 && row < rowCount) {
if (row + rowSpan - 1 >= rowCount) {
throw new IllegalArgumentException(
"wrong row span: " + rowSpan + "; row=" + row + " rowCount=" + rowCount);
} else {
int column = c.getColumn();
int colSpan = c.getColSpan();
int columnCount = this.getColumnCount();
if (column >= 0 && column < columnCount) {
if (column + colSpan - 1 >= columnCount) {
throw new IllegalArgumentException(
"wrong col span: "
+ colSpan
+ "; column="
+ column
+ " columnCount="
+ columnCount);
} else {
super.addLayoutComponent(comp, constraints);
}
} else {
throw new IllegalArgumentException("wrong column: " + column);
}
}
} else {
throw new IllegalArgumentException("wrong row: " + row);
}
}
private static void updateSizesFromChildren(DimensionInfo info, boolean min, int[] widths) {
for (int i = info.getComponentCount() - 1; i >= 0; --i) {
Component child = info.getComponent(i);
GridConstraints c = info.getConstraints(i);
if (c.isUseParentLayout() && child instanceof Container) {
Container container = (Container) child;
if (container.getLayout() instanceof GridLayoutManager) {
updateSizesFromChild(info, min, widths, container, i);
} else if (container.getComponentCount() == 1
&& container.getComponent(0) instanceof Container) {
Container childContainer = (Container) container.getComponent(0);
if (childContainer.getLayout() instanceof GridLayoutManager) {
updateSizesFromChild(info, min, widths, childContainer, i);
}
}
}
}
}
private int checkSetSizesFromParent(Container container, Insets insets) {
int skipLayout = 0;
GridLayoutManager parentGridLayout = null;
GridConstraints parentGridConstraints = null;
Container parent = container.getParent();
if (parent != null) {
if (parent.getLayout() instanceof GridLayoutManager) {
parentGridLayout = (GridLayoutManager) parent.getLayout();
parentGridConstraints = parentGridLayout.getConstraintsForComponent(container);
} else {
Container col = parent.getParent();
if (col != null && col.getLayout() instanceof GridLayoutManager) {
parentGridLayout = (GridLayoutManager) col.getLayout();
parentGridConstraints = parentGridLayout.getConstraintsForComponent(parent);
}
}
}
if (parentGridLayout != null && parentGridConstraints.isUseParentLayout()) {
int i;
if (this.myRowStretches.length == parentGridConstraints.getRowSpan()) {
int row = parentGridConstraints.getRow();
this.myYs[0] = insets.top + this.myMargin.top;
this.myHeights[0] = parentGridLayout.myHeights[row] - this.myYs[0];
for (i = 1; i < this.myRowStretches.length; ++i) {
this.myYs[i] = parentGridLayout.myYs[i + row] - parentGridLayout.myYs[row];
this.myHeights[i] = parentGridLayout.myHeights[i + row];
}
this.myHeights[this.myRowStretches.length - 1] -= insets.bottom + this.myMargin.bottom;
skipLayout |= 1;
}
if (this.myColumnStretches.length == parentGridConstraints.getColSpan()) {
int column = parentGridConstraints.getColumn();
this.myXs[0] = insets.left + this.myMargin.left;
this.myWidths[0] = parentGridLayout.myWidths[column] - this.myXs[0];
for (i = 1; i < this.myColumnStretches.length; ++i) {
this.myXs[i] = parentGridLayout.myXs[i + column] - parentGridLayout.myXs[column];
this.myWidths[i] = parentGridLayout.myWidths[i + column];
}
this.myWidths[this.myColumnStretches.length - 1] -= insets.right + this.myMargin.right;
skipLayout |= 2;
}
}
return skipLayout;
}
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);
}
}