CornerLayoutpublic class CornerLayout extends Object implements LayoutManager| An 'educational' layout. CornerLayout will layout a container
using members named "Northeast", "Northwest", "Southeast",
"Southwest", and "Center".
The "Northeast", "Northwest", "Southeast" and "Soutwest" components
get sized relative to the adjacent corner's components and
the constraints of the container's size. The "Center" component will
get any space left over. |
| Fields Summary |
|---|
| int | hgap | | int | vgap | | int | mode | | public static final int | NORMAL | | public static final int | FULL_WIDTH | | public static final int | FULL_HEIGHT | | Component | northwest | | Component | southwest | | Component | northeast | | Component | southeast | | Component | center |
| Constructors Summary |
|---|
public CornerLayout()Constructs a new CornerLayout.
this (0, 0, CornerLayout.NORMAL);
| public CornerLayout(int mode)
this (0, 0, mode);
| public CornerLayout(int hgap, int vgap)
this (hgap, vgap, CornerLayout.NORMAL);
| public CornerLayout(int hgap, int vgap, int mode)
this.hgap = hgap;
this.vgap = vgap;
this.mode = mode;
|
| Methods Summary |
|---|
| public void | addLayoutComponent(java.lang.String name, java.awt.Component comp)
if ("Center".equals(name)) {
center = comp;
} else if ("Northwest".equals(name)) {
northwest = comp;
} else if ("Southeast".equals(name)) {
southeast = comp;
} else if ("Northeast".equals(name)) {
northeast = comp;
} else if ("Southwest".equals(name)) {
southwest = comp;
}
| | public void | layoutContainer(java.awt.Container target)
Insets insets = target.insets();
int top = insets.top;
int bottom = target.size().height - insets.bottom;
int left = insets.left;
int right = target.size().width - insets.right;
Dimension northeastDim = new Dimension (0,0);
Dimension northwestDim = new Dimension (0,0);
Dimension southeastDim = new Dimension (0,0);
Dimension southwestDim = new Dimension (0,0);
Dimension centerDim = new Dimension (0,0);
Point topLeftCorner, topRightCorner, bottomLeftCorner,
bottomRightCorner;
if ((northeast != null) && northeast.isVisible()) {
northeastDim = northeast.preferredSize();
}
if ((southwest != null) && southwest.isVisible()) {
southwestDim = southwest.preferredSize();
}
if ((center != null) && center.isVisible()) {
centerDim = center.preferredSize();
}
if ((northwest != null) && northwest.isVisible()) {
northwestDim = northwest.preferredSize();
}
if ((southeast != null) && southeast.isVisible()) {
southeastDim = southeast.preferredSize();
}
topLeftCorner = new Point (left +
Math.max (northwestDim.width, southwestDim.width),
top +
Math.max (northwestDim.height, northeastDim.height));
topRightCorner = new Point (right -
Math.max (northeastDim.width, southeastDim.width),
top +
Math.max (northwestDim.height, northeastDim.height));
bottomLeftCorner = new Point (left +
Math.max (northwestDim.width, southwestDim.width),
bottom -
Math.max (southwestDim.height, southeastDim.height));
bottomRightCorner = new Point (right -
Math.max (northeastDim.width, southeastDim.width),
bottom -
Math.max (southwestDim.height, southeastDim.height));
if ((northwest != null) && northwest.isVisible()) {
northwest.reshape(left, top,
left + topLeftCorner.x,
top + topLeftCorner.y);
}
if ((southwest != null) && southwest.isVisible()) {
southwest.reshape(left, bottomLeftCorner.y,
bottomLeftCorner.x - left,
bottom - bottomLeftCorner.y);
}
if ((southeast != null) && southeast.isVisible()) {
southeast.reshape(bottomRightCorner.x,
bottomRightCorner.y,
right - bottomRightCorner.x,
bottom - bottomRightCorner.y);
}
if ((northeast != null) && northeast.isVisible()) {
northeast.reshape(topRightCorner.x, top,
right - topRightCorner.x,
topRightCorner.y);
}
if ((center != null) && center.isVisible()) {
int x = topLeftCorner.x + hgap;
int y = topLeftCorner.y + vgap;
int width = bottomRightCorner.x - topLeftCorner.x - hgap * 2;
int height = bottomRightCorner.y - topLeftCorner.y - vgap * 2;
if (mode == CornerLayout.FULL_WIDTH) {
x = left;
width = right - left;
} else if (mode == CornerLayout.FULL_HEIGHT) {
y = top;
height = bottom - top;
}
center.reshape(x, y, width, height);
}
| | public java.awt.Dimension | minimumLayoutSize(java.awt.Container target)
Dimension dim = new Dimension(0, 0);
Dimension northeastDim = new Dimension (0,0);
Dimension northwestDim = new Dimension (0,0);
Dimension southeastDim = new Dimension (0,0);
Dimension southwestDim = new Dimension (0,0);
Dimension centerDim = new Dimension (0,0);
if ((northeast != null) && northeast.isVisible()) {
northeastDim = northeast.minimumSize();
}
if ((southwest != null) && southwest.isVisible()) {
southwestDim = southwest.minimumSize();
}
if ((center != null) && center.isVisible()) {
centerDim = center.minimumSize();
}
if ((northwest != null) && northwest.isVisible()) {
northwestDim = northwest.minimumSize();
}
if ((southeast != null) && southeast.isVisible()) {
southeastDim = southeast.minimumSize();
}
dim.width = Math.max (northwestDim.width, southwestDim.width) +
hgap + centerDim.width + hgap +
Math.max (northeastDim.width, southeastDim.width);
dim.height = Math.max (northwestDim.height, northeastDim.height) +
+ vgap + centerDim.height + vgap +
Math.max (southeastDim.height, southwestDim.height);
Insets insets = target.insets();
dim.width += insets.left + insets.right;
dim.height += insets.top + insets.bottom;
return dim;
| | public java.awt.Dimension | preferredLayoutSize(java.awt.Container target)
Dimension dim = new Dimension(0, 0);
Dimension northeastDim = new Dimension (0,0);
Dimension northwestDim = new Dimension (0,0);
Dimension southeastDim = new Dimension (0,0);
Dimension southwestDim = new Dimension (0,0);
Dimension centerDim = new Dimension (0,0);
if ((northeast != null) && northeast.isVisible()) {
northeastDim = northeast.preferredSize();
}
if ((southwest != null) && southwest.isVisible()) {
southwestDim = southwest.preferredSize();
}
if ((center != null) && center.isVisible()) {
centerDim = center.preferredSize();
}
if ((northwest != null) && northwest.isVisible()) {
northwestDim = northwest.preferredSize();
}
if ((southeast != null) && southeast.isVisible()) {
southeastDim = southeast.preferredSize();
}
dim.width = Math.max (northwestDim.width, southwestDim.width) +
hgap + centerDim.width + hgap +
Math.max (northeastDim.width, southeastDim.width);
dim.height = Math.max (northwestDim.height, northeastDim.height) +
+ vgap + centerDim.height + vgap +
Math.max (southeastDim.height, southwestDim.height);
Insets insets = target.insets();
dim.width += insets.left + insets.right;
dim.height += insets.top + insets.bottom;
return dim;
| | public void | removeLayoutComponent(java.awt.Component comp)
if (comp == center) {
center = null;
} else if (comp == northwest) {
northwest = null;
} else if (comp == southeast) {
southeast = null;
} else if (comp == northeast) {
northeast = null;
} else if (comp == southwest) {
southwest = null;
}
| | public java.lang.String | toString()
String str;
switch (mode) {
case FULL_WIDTH: str = "wide";
break;
case FULL_HEIGHT: str = "tall";
break;
default: str = "normal";
break;
}
return getClass().getName() + "[hgap=" + hgap +
",vgap=" + vgap + ",mode=" + str + "]";
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