/*
* Copyright 2000-2012 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.android.designer.model.layout;
import com.android.SdkConstants;
import com.android.tools.idea.designer.ResizeOperation;
import com.android.tools.idea.designer.ResizePolicy;
import com.intellij.android.designer.designSurface.TreeDropToOperation;
import com.intellij.android.designer.designSurface.graphics.DirectionResizePoint;
import com.intellij.android.designer.designSurface.graphics.DrawingStyle;
import com.intellij.android.designer.designSurface.graphics.ResizeSelectionDecorator;
import com.intellij.android.designer.designSurface.layout.FrameLayoutOperation;
import com.intellij.android.designer.designSurface.layout.actions.LayoutMarginOperation;
import com.intellij.android.designer.model.RadViewComponent;
import com.intellij.android.designer.model.RadViewLayoutWithData;
import com.intellij.android.designer.model.layout.actions.AbstractGravityAction;
import com.intellij.designer.componentTree.TreeEditOperation;
import com.intellij.designer.designSurface.ComponentDecorator;
import com.intellij.designer.designSurface.DesignerEditorPanel;
import com.intellij.designer.designSurface.EditOperation;
import com.intellij.designer.designSurface.OperationContext;
import com.intellij.designer.designSurface.selection.ResizePoint;
import com.intellij.designer.model.RadComponent;
import com.intellij.designer.utils.Position;
import com.intellij.openapi.actionSystem.DefaultActionGroup;
import com.intellij.openapi.actionSystem.Presentation;
import com.intellij.openapi.util.Pair;
import org.jetbrains.annotations.NotNull;
import javax.swing.*;
import java.util.Arrays;
import java.util.List;
/**
* @author Alexander Lobas
*/
public class RadFrameLayout extends RadViewLayoutWithData {
private static final String[] LAYOUT_PARAMS = {"FrameLayout_Layout", "ViewGroup_MarginLayout"};
private ResizeSelectionDecorator mySelectionDecorator;
@Override
@NotNull
public String[] getLayoutParams() {
return LAYOUT_PARAMS;
}
@Override
public EditOperation processChildOperation(OperationContext context) {
if (context.isCreate() || context.isPaste() || context.isAdd() || context.isMove()) {
if (context.isTree()) {
if (TreeEditOperation.isTarget(myContainer, context)) {
return new TreeDropToOperation(myContainer, context);
}
return null;
}
return new FrameLayoutOperation(myContainer, context);
}
if (context.is(ResizeOperation.TYPE)) {
return new ResizeOperation(context);
}
if (context.is(LayoutMarginOperation.TYPE)) {
return new LayoutMarginOperation(context);
}
return null;
}
@Override
public ComponentDecorator getChildSelectionDecorator(RadComponent component, List<RadComponent> selection) {
if (mySelectionDecorator == null) {
mySelectionDecorator = new ResizeSelectionDecorator(DrawingStyle.SELECTION) {
@Override
protected boolean visible(RadComponent component, ResizePoint point) {
if (point.getType() == ResizeOperation.TYPE && component instanceof RadViewComponent) {
ResizePolicy policy = ResizePolicy.getResizePolicy((RadViewComponent)component);
return policy.applies((DirectionResizePoint)point);
}
if (point.getType() == LayoutMarginOperation.TYPE) {
Pair<Gravity, Gravity> gravity = Gravity.getSides(component);
int direction = ((DirectionResizePoint)point).getDirection();
if (direction == Position.WEST) { // left
return gravity.first == Gravity.left || gravity.first == Gravity.center;
}
if (direction == Position.EAST) { // right
return gravity.first == Gravity.right || gravity.first == Gravity.center;
}
if (direction == Position.NORTH) { // top
return gravity.second == Gravity.top || gravity.second == Gravity.center;
}
if (direction == Position.SOUTH) { // bottom
return gravity.second == Gravity.bottom || gravity.second == Gravity.center;
}
}
return true;
}
};
}
mySelectionDecorator.clear();
if (selection.size() == 1) {
ResizeOperation.addResizePoints(mySelectionDecorator, (RadViewComponent)selection.get(0));
} else {
ResizeOperation.addResizePoints(mySelectionDecorator);
}
return mySelectionDecorator;
}
//////////////////////////////////////////////////////////////////////////////////////////
//
// Actions
//
//////////////////////////////////////////////////////////////////////////////////////////
private static List<Pair<Boolean, Gravity>> ITEMS = Arrays
.asList(Pair.create(Boolean.FALSE, Gravity.top), Pair.create(Boolean.FALSE, Gravity.center),
Pair.create(Boolean.FALSE, Gravity.bottom), null, Pair.create(Boolean.TRUE, Gravity.left),
Pair.create(Boolean.TRUE, Gravity.center), Pair.create(Boolean.TRUE, Gravity.right));
@Override
public void addContainerSelectionActions(DesignerEditorPanel designer,
DefaultActionGroup actionGroup,
List<? extends RadViewComponent> selection) {
super.addContainerSelectionActions(designer, actionGroup, selection);
if (selection.size() != 1) {
return;
}
AbstractGravityAction<Pair<Boolean, Gravity>> action =
new AbstractGravityAction<Pair<Boolean, Gravity>>(designer, selection) {
private Pair<Gravity, Gravity> myGravity;
@Override
protected boolean addSeparator(DefaultActionGroup actionGroup, Pair<Boolean, Gravity> item) {
if (item == null) {
actionGroup.addSeparator();
return true;
}
return false;
}
@NotNull
@Override
protected DefaultActionGroup createPopupActionGroup(JComponent button) {
myGravity = Gravity.getSides(myComponents.get(0));
return super.createPopupActionGroup(button);
}
@Override
protected void update(Pair<Boolean, Gravity> item, Presentation presentation, boolean popup) {
if (popup) {
Gravity selection = item.first ? myGravity.first : myGravity.second;
presentation.setIcon(selection == item.second ? CHECKED : null);
presentation.setText(item.second.name());
}
}
@Override
protected boolean selectionChanged(Pair<Boolean, Gravity> item) {
Gravity oldSelection = item.first ? myGravity.first : myGravity.second;
if (oldSelection != item.second) {
final String gravity =
item.first ? Gravity.getValue(item.second, myGravity.second) : Gravity.getValue(myGravity.first, item.second);
execute(new Runnable() {
@Override
public void run() {
myComponents.get(0).getTag().setAttribute("layout_gravity", SdkConstants.NS_RESOURCES, gravity);
}
});
}
return false;
}
@Override
public void setSelection(Pair<Boolean, Gravity> selection) {
}
};
action.setItems(ITEMS, null);
actionGroup.add(action);
}
}