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Merge pull request #13296 from WenhaiLin/v3.8-label-crash-mac 

Label:Fixed crash cause by access an invalid address
This commit is contained in:
子龙山人 2015-08-11 07:30:38 +08:00
parent 06f57600d4 2983aed0a9
commit c65f09f63e
1 changed files with 44 additions and 27 deletions
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25
cocos/2d/CCLabel.cpp
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@ -66,6 +66,8 @@ public:
return nullptr;
}
CREATE_FUNC(LabelLetter);
virtual void updateTransform() override
{
if (isDirty())
@ -745,17 +747,18 @@ void Label::updateQuads()
}
for (int ctr = 0; ctr < _lengthOfString; ++ctr)
{
if (_lettersInfo[ctr].valid)
{
auto& letterDef = _fontAtlas->_letterDefinitions[_lettersInfo[ctr].utf16Char];
if (letterDef.validDefinition)
{
_reusedRect.size.height = letterDef.height;
_reusedRect.size.width = letterDef.width;
_reusedRect.origin.x = letterDef.U;
_reusedRect.origin.y = letterDef.V;
auto py = _lettersInfo[ctr].positionY + _letterOffsetY;
if (_labelHeight > 0.f) {
if (py > _tailoredTopY)
{
auto clipTop = py - _tailoredTopY;
@ -767,6 +770,7 @@ void Label::updateQuads()
{
_reusedRect.size.height = (py < _tailoredBottomY) ? 0.f : (py - _tailoredBottomY);
}
}
if (_reusedRect.size.height > 0.f && _reusedRect.size.width > 0.f)
{
@ -1389,26 +1393,39 @@ Sprite * Label::getLetter(int letterIndex)
uvRect.origin.y = letterDef.V;
if (letter == nullptr)
{
if (letterDef.width <= 0.f || letterDef.height <= 0.f)
{
letter = LabelLetter::create();
}
else
{
letter = LabelLetter::createWithTexture(_fontAtlas->getTexture(textureID), uvRect);
letter->setTextureAtlas(_batchNodes.at(textureID)->getTextureAtlas());
letter->setAtlasIndex(letterInfo.atlasIndex);
auto px = letterInfo.positionX + uvRect.size.width / 2 + _linesOffsetX[letterInfo.lineIndex];
auto py = letterInfo.positionY - uvRect.size.height / 2 + _letterOffsetY;
letter->setPosition(px,py);
letter->setOpacity(_realOpacity);
addChild(letter);
}
addChild(letter);
_letters[letterIndex] = letter;
}
else if (contentDirty)
{
if (letterDef.width <= 0.f || letterDef.height <= 0.f)
{
letter->setTextureAtlas(nullptr);
}
else
{
letter->setTexture(_fontAtlas->getTexture(textureID));
letter->setTextureRect(uvRect, false, uvRect.size);
letter->setTextureAtlas(_batchNodes.at(textureID)->getTextureAtlas());
}
}
}
} while (false);
return letter;