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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
*
* 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.android.adt.gscripts;
public class BaseView implements IViewRule {
// Some common Android layout attribute names used by the view rules.
// All these belong to the attribute namespace ANDROID_URI.
public static String ATTR_ID = "id";
public static String ATTR_TEXT = "text";
public static String ATTR_LAYOUT_WIDTH = "layout_width";
public static String ATTR_LAYOUT_HEIGHT = "layout_height";
// Some common Android layout attribute values used by the view rules.
public static String VALUE_FILL_PARENT = "fill_parent";
public static String VALUE_MATCH_PARENT = "match_parent";
public static String VALUE_MATCH_CONTENT = "match_content";
/**
* Namespace for the Android resource XML,
* i.e. "http://schemas.android.com/apk/res/android"
*/
public static String ANDROID_URI = "http://schemas.android.com/apk/res/android";
public boolean onInitialize(String fqcn) {
// This base rule can handle any class so we don't need to filter on FQCN.
// Derived classes should do so if they can handle some subclasses.
// For debugging and as an example of how to use the injected _rules_engine property.
_rules_engine.debugPrintf("Initialize() of %s", _rules_engine.getFqcn());
// If onInitialize returns false, it means it can't handle the given FQCN and
// will be unloaded.
return true;
}
public void onDispose() {
// Nothing to dispose.
}
public String getDisplayName() {
// Default is to not override the selection display name.
return null;
}
public Map<?, ?> getDefaultAttributes() {
// The base rule does not have any custom default attributes.
return null;
}
// ==== Selection ====
public void onSelected(IGraphics gc, INode selectedNode,
String displayName, boolean isMultipleSelection) {
Rect r = selectedNode.getBounds();
if (!r.isValid()) {
return;
}
gc.setLineWidth(1);
gc.setLineStyle(IGraphics.LineStyle.LINE_SOLID);
gc.drawRect(r);
if (displayName == null || isMultipleSelection) {
return;
}
int xs = r.x + 2;
int ys = r.y - gc.getFontHeight();
if (ys < 0) {
ys = r.y + r.h;
}
gc.drawString(displayName, xs, ys);
}
public void onChildSelected(IGraphics gc, INode parentNode, INode childNode) {
Rect rp = parentNode.getBounds();
Rect rc = childNode.getBounds();
if (rp.isValid() && rc.isValid()) {
gc.setLineWidth(1);
gc.setLineStyle(IGraphics.LineStyle.LINE_DOT);
// top line
int m = rc.x + rc.w / 2;
gc.drawLine(m, rc.y, m, rp.y);
// bottom line
gc.drawLine(m, rc.y + rc.h, m, rp.y + rp.h);
// left line
m = rc.y + rc.h / 2;
gc.drawLine(rc.x, m, rp.x, m);
// right line
gc.drawLine(rc.x + rc.w, m, rp.x + rp.w, m);
}
}
// ==== Drag'n'drop support ====
// By default Views do not accept drag'n'drop.
public DropFeedback onDropEnter(INode targetNode, IDragElement[] elements) {
return null;
}
public DropFeedback onDropMove(INode targetNode, IDragElement[] elements,
DropFeedback feedback, Point p) {
return null;
}
public void onDropLeave(INode targetNode, IDragElement[] elements, DropFeedback feedback) {
// ignore
}
public void onDropped(INode targetNode, IDragElement[] elements, DropFeedback feedback, Point p) {
// ignore
}
// ==== Paste support ====
/**
* Most views can't accept children so there's nothing to paste on them.
* In this case, defer the call to the parent layout and use the target node as
* an indication of where to paste.
*/
public void onPaste(INode targetNode, IDragElement[] elements) {
//
def parent = targetNode.getParent();
def parentFqcn = parent?.getFqcn();
def parentRule = _rules_engine.loadRule(parentFqcn);
if (parentRule instanceof BaseLayout) {
parentRule.onPasteBeforeChild(parent, targetNode, elements);
}
}
}
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