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 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;
}
