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Viewing changes to third_party/skia/src/animator/SkHitTest.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Stefan Lesicnik
  • Date: 2009-04-30 19:15:25 UTC
  • Revision ID: james.westby@ubuntu.com-20090430191525-0790sb5wzg8ou0xb
Tags: upstream-0.5.21.0~svn3334+dfsg
Import upstream version 0.5.21.0~svn3334+dfsg

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third_party/skia/src/animator/SkHitTest.cpp
 
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/* libs/graphics/animator/SkHitTest.cpp
 
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**
 
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** Copyright 2006, The Android Open Source Project
 
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**
 
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** Licensed under the Apache License, Version 2.0 (the "License"); 
 
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** you may not use this file except in compliance with the License. 
 
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** You may obtain a copy of the License at 
 
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**
 
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**     http://www.apache.org/licenses/LICENSE-2.0 
 
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**
 
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** Unless required by applicable law or agreed to in writing, software 
 
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** distributed under the License is distributed on an "AS IS" BASIS, 
 
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 
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** See the License for the specific language governing permissions and 
 
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** limitations under the License.
 
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*/
 
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#include "SkHitTest.h"
 
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#if SK_USE_CONDENSED_INFO == 0
 
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const SkMemberInfo SkHitTest::fInfo[] = {
 
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    SK_MEMBER_ARRAY(bullets, Displayable),
 
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    SK_MEMBER_ARRAY(hits, Int),
 
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    SK_MEMBER_ARRAY(targets, Displayable),
 
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    SK_MEMBER(value, Boolean)
 
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};
 
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#endif
 
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DEFINE_GET_MEMBER(SkHitTest);
 
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SkHitTest::SkHitTest() : value(false) {
 
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}
 
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bool SkHitTest::draw(SkAnimateMaker& maker) {
 
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    hits.setCount(bullets.count());
 
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    value = false;
 
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    int bulletCount = bullets.count();
 
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    int targetCount = targets.count();
 
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    for (int bIndex = 0; bIndex < bulletCount; bIndex++) {
 
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        SkDisplayable* bullet = bullets[bIndex];
 
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        SkRect bBounds;
 
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        bullet->getBounds(&bBounds);
 
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        hits[bIndex] = -1;
 
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        if (bBounds.fLeft == (int16_t)0x8000U)
 
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            continue;
 
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        for (int tIndex = 0; tIndex < targetCount; tIndex++) {
 
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            SkDisplayable* target = targets[tIndex];
 
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            SkRect tBounds;
 
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            target->getBounds(&tBounds);
 
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            if (bBounds.intersect(tBounds)) {
 
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                hits[bIndex] = tIndex;
 
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                value = true;
 
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                break;
 
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            }
 
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        }
 
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    }
 
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    return false;
 
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}
 
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bool SkHitTest::enable(SkAnimateMaker& maker) {
 
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    for (int bIndex = 0; bIndex < bullets.count(); bIndex++) {
 
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        SkDisplayable* bullet = bullets[bIndex];
 
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        bullet->enableBounder();
 
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    }
 
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    for (int tIndex = 0; tIndex < targets.count(); tIndex++) {
 
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        SkDisplayable* target = targets[tIndex];
 
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        target->enableBounder();
 
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    }
 
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    return false;
 
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}
 
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bool SkHitTest::hasEnable() const {
 
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    return true;
 
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}
 
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const SkMemberInfo* SkHitTest::preferredChild(SkDisplayTypes type) {
 
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    if (bullets.count() == 0)
 
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        return getMember("bullets");
 
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    return getMember("targets"); // !!! cwap! need to refer to member through enum like kScope instead
 
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}
 
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