tv_xiaoyouxi/games/dwy/cocos2d-html5-v2.2.3/cocos2d/CCSpriteFrame.js

/****************************************************************************
 Copyright (c) 2010-2012 cocos2d-x.org
 Copyright (c) 2008-2010 Ricardo Quesada
 Copyright (c) 2011      Zynga Inc.

 http://www.cocos2d-x.org

 Permission is hereby granted, free of charge, to any person obtaining a copy
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 all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ****************************************************************************/

/**
 * <p>
 *    A cc.SpriteFrame has:<br/>
 *      - texture: A cc.Texture2D that will be used by the cc.Sprite<br/>
 *      - rectangle: A rectangle of the texture<br/>
 *    <br/>
 *    You can modify the frame of a cc.Sprite by doing:<br/>
 * </p>
 * @class
 * @extends cc.Class
 *
 * @example
 * var texture = cc.TextureCache.getInstance().addImage(s_dragon_animation);
 * var frame0 = cc.SpriteFrame.createWithTexture(texture, cc.rect(132 * 0, 132 * 0, 132, 132));
 */
cc.SpriteFrame = cc.Class.extend(/** @lends cc.SpriteFrame# */{
    _offset:null,
    _originalSize:null,
    _rectInPixels:null,
    _rotated:false,
    _rect:null,
    _offsetInPixels:null,
    _originalSizeInPixels:null,
    _texture:null,
    _textureFilename:"",
    _textureLoaded:false,
    _eventListeners:null,

    ctor:function () {
        this._offset = cc.p(0, 0);
        this._offsetInPixels = cc.p(0, 0);
        this._originalSize = cc.size(0, 0);
        this._rotated = false;
        this._originalSizeInPixels = cc.size(0, 0);
        this._textureFilename = "";
        this._texture = null;
        this._textureLoaded = false;
    },

    // attributes
    textureLoaded:function(){
        return this._textureLoaded;
    },

    addLoadedEventListener:function(callback, target){
        if (this._eventListeners == null){
           this._eventListeners = [];
        }
        this._eventListeners.push({eventCallback:callback, eventTarget:target});
    },

    _callLoadedEventCallbacks:function(){
        var locListeners = this._eventListeners;
        if (!locListeners) return;
        for(var i = 0, len = locListeners.length;  i < len; i++){
            var selCallback = locListeners[i];
            cc.doCallback(selCallback.eventCallback, selCallback.eventTarget, this);
        }
        locListeners.length = 0;
    },

    /**
     * @return {cc.Rect}
     */
    getRectInPixels:function () {
        var locRectInPixels = this._rectInPixels;
        return cc.rect(locRectInPixels.x, locRectInPixels.y, locRectInPixels.width, locRectInPixels.height);
    },

    /**
     * @param {cc.Rect} rectInPixels
     */
    setRectInPixels:function (rectInPixels) {
        if (!this._rectInPixels){
            this._rectInPixels = cc.rect(0,0,0,0);
        }
        this._rectInPixels.x = rectInPixels.x;
        this._rectInPixels.y = rectInPixels.y;
        this._rectInPixels.width = rectInPixels.width;
        this._rectInPixels.height = rectInPixels.height;
        this._rect = cc.RECT_PIXELS_TO_POINTS(rectInPixels);
    },

    /**
     * <p>
     *     return is rotated of SpriteFrame. <br/>
     * </p>
     * @return {Boolean}
     */
    isRotated:function () {
        return this._rotated;
    },

    /**
     * set SpriteFrame is rotated
     * @param {Boolean} bRotated
     */
    setRotated:function (bRotated) {
        this._rotated = bRotated;
    },

    /**
     * get rect of the frame
     * @return {cc.Rect}
     */
    getRect:function () {
        var locRect = this._rect;
        return cc.rect(locRect.x, locRect.y, locRect.width, locRect.height);
    },

    /**
     * set rect of the frame
     * @param {cc.Rect} rect
     */
    setRect:function (rect) {
        if (!this._rect){
            this._rect = cc.rect(0,0,0,0);
        }
        this._rect.x = rect.x;
        this._rect.y = rect.y;
        this._rect.width = rect.width;
        this._rect.height = rect.height;
        this._rectInPixels = cc.RECT_POINTS_TO_PIXELS(this._rect);
    },

    /**
     * get offset of the frame
     * @return {cc.Point}
     */
    getOffsetInPixels:function () {
        return cc.p(this._offsetInPixels);
    },

    /**
     * set offset of the frame
     * @param {cc.Point} offsetInPixels
     */
    setOffsetInPixels:function (offsetInPixels) {
        this._offsetInPixels.x = offsetInPixels.x;
        this._offsetInPixels.y = offsetInPixels.y;
        this._offset = cc.POINT_PIXELS_TO_POINTS(this._offsetInPixels);
    },

    /**
     * get original size of the trimmed image
     * @const
     * @return {cc.Size}
     */
    getOriginalSizeInPixels:function () {
        return cc.size(this._originalSizeInPixels);
    },

    /**
     * set original size of the trimmed image
     * @param {cc.Size} sizeInPixels
     */
    setOriginalSizeInPixels:function (sizeInPixels) {
        this._originalSizeInPixels.width = sizeInPixels.width;
        this._originalSizeInPixels.height = sizeInPixels.height;
    },

    /**
     * get original size of the trimmed image
     * @const
     * @return {cc.Size}
     */
    getOriginalSize:function () {
        return cc.size(this._originalSize);
    },

    /**
     * set original size of the trimmed image
     * @param {cc.Size} sizeInPixels
     */
    setOriginalSize:function (sizeInPixels) {
        this._originalSize.width = sizeInPixels.width;
        this._originalSize.height = sizeInPixels.height;
    },

    /**
     * get texture of the frame
     * @return {cc.Texture2D}
     */
    getTexture:function () {
        if (this._texture)
            return this._texture;
        if (this._textureFilename !== "") {
            var locTexture = cc.TextureCache.getInstance().addImage(this._textureFilename);
            if (locTexture)
                this._textureLoaded = locTexture.isLoaded();
            return locTexture;
        }
        return null;
    },

    /**
     * set texture of the frame, the texture is retained
     * @param {cc.Texture2D} texture
     */
    setTexture:function (texture) {
        if (this._texture != texture) {
            var locLoaded = texture.isLoaded();
            this._textureLoaded = locLoaded;
            this._texture = texture;
            if(!locLoaded){
                texture.addLoadedEventListener(function(sender){
                    this._textureLoaded = true;
                    if(this._rotated && cc.renderContextType === cc.CANVAS){
                        var tempElement = sender.getHtmlElementObj();
                        tempElement = cc.cutRotateImageToCanvas(tempElement, this.getRect());
                        var tempTexture = new cc.Texture2D();
                        tempTexture.initWithElement(tempElement);
                        tempTexture.handleLoadedTexture();
                        this.setTexture(tempTexture);

                        var rect = this.getRect();
                        this.setRect(cc.rect(0, 0, rect.width, rect.height));
                    }
                    var locRect = this._rect;
                    if(locRect.width === 0 && locRect.height === 0){
                        var locContentSize = sender.getContentSize();
                        this._rect.width = locContentSize.width;
                        this._rect.height = locContentSize.height;
                        this._rectInPixels = cc.RECT_POINTS_TO_PIXELS(this._rect);
                        this._originalSizeInPixels.width = this._rectInPixels.width;
                        this._originalSizeInPixels.height = this._rectInPixels.height;
                        this._originalSize.width =  locContentSize.width;
                        this._originalSize.height =  locContentSize.height;
                    }
                    this._callLoadedEventCallbacks();
                }, this);
            }
        }
    },

    /**
     * Offset getter
     * @const
     * @return {cc.Point}
     */
    getOffset:function () {
        return cc.p(this._offset);
    },

    /**
     * offset setter
     * @param {cc.Point} offsets
     */
    setOffset:function (offsets) {
        this._offset.x = offsets.x;
        this._offset.y = offsets.y;
    },

    clone: function(){
        var frame = new cc.SpriteFrame();
        frame.initWithTextureFilename(this._textureFilename, this._rectInPixels, this._rotated, this._offsetInPixels, this._originalSizeInPixels);
        frame.setTexture(this._texture);
        return frame;
    },

    /**
     * copy a new SpriteFrame
     * @return {cc.SpriteFrame}
     */
    copyWithZone:function () {
        var copy = new cc.SpriteFrame();
        copy.initWithTextureFilename(this._textureFilename, this._rectInPixels, this._rotated, this._offsetInPixels, this._originalSizeInPixels);
        copy.setTexture(this._texture);
        return copy;
    },

    copy:function () {
        return this.copyWithZone();
    },

    /**
     * Initializes SpriteFrame with Texture, rect, rotated, offset and originalSize in pixels.
     * @param {cc.Texture2D} texture
     * @param {cc.Rect} rect if parameters' length equal 2, rect in points, else rect in pixels
     * @param {Boolean} [rotated=false]
     * @param {cc.Point} [offset=cc.p(0,0)]
     * @param {cc.Size} [originalSize=rect.size]
     * @return {Boolean}
     */
    initWithTexture:function (texture, rect, rotated, offset, originalSize) {
        if(arguments.length === 2)
            rect = cc.RECT_POINTS_TO_PIXELS(rect);

        offset = offset || cc.p(0, 0);
        originalSize = originalSize || rect._size;

        this.setTexture(texture);
        this._rectInPixels = rect;
        this._rect = cc.RECT_PIXELS_TO_POINTS(rect);
        this._offsetInPixels.x = offset.x;
        this._offsetInPixels.y = offset.y;
        this._offset = cc.POINT_PIXELS_TO_POINTS(offset);
        this._originalSizeInPixels.width = originalSize.width;
        this._originalSizeInPixels.height = originalSize.height;
        this._originalSize = cc.SIZE_PIXELS_TO_POINTS(originalSize);
        this._rotated = rotated || false;
        return true;
    },

    /**
     * <p>
     *    Initializes a cc.SpriteFrame with a texture, rect, rotated, offset and originalSize in pixels.<br/>
     *    The originalSize is the size in pixels of the frame before being trimmed.
     * </p>
     * @param {string} filename
     * @param {cc.Rect} rect if parameters' length equal 2, rect in points, else rect in pixels
     * @param {Boolean} rotated
     * @param {cc.Point} [offset=cc.p(0,0)]
     * @param {cc.Size} [originalSize=rect.size]
     */
    initWithTextureFilename:function (filename, rect, rotated, offset, originalSize) {
        if(arguments.length === 2)
            rect = cc.RECT_POINTS_TO_PIXELS(rect);

        offset = offset || cc.p(0, 0);
        originalSize = originalSize || rect._size;

        this._texture = null;
        this._textureFilename = filename;
        this._rectInPixels = rect;
        this._rect = cc.RECT_PIXELS_TO_POINTS(rect);
        this._rotated = rotated || false;
        this._offsetInPixels.x = offset.x;
        this._offsetInPixels.y = offset.y;
        this._offset = cc.POINT_PIXELS_TO_POINTS(offset);
        this._originalSizeInPixels.width = originalSize.width;
        this._originalSizeInPixels.height = originalSize.height;
        this._originalSize = cc.SIZE_PIXELS_TO_POINTS(originalSize);
        return true;
    }
});

/**
 * <p>
 *    Create a cc.SpriteFrame with a texture filename, rect, rotated, offset and originalSize in pixels.<br/>
 *    The originalSize is the size in pixels of the frame before being trimmed.
 * </p>
 * @param {string} filename
 * @param {cc.Rect} rect if parameters' length equal 2, rect in points, else rect in pixels
 * @param {Boolean} rotated
 * @param {cc.Point} offset
 * @param {cc.Size} originalSize
 * @return {cc.SpriteFrame}
 */
cc.SpriteFrame.create = function (filename, rect, rotated, offset, originalSize) {
    var spriteFrame = new cc.SpriteFrame();
    switch (arguments.length) {
        case 2:
            spriteFrame.initWithTextureFilename(filename, rect);
            break;
        case 5:
            spriteFrame.initWithTextureFilename(filename, rect, rotated, offset, originalSize);
            break;
        default:
            throw "Argument must be non-nil ";
            break;
    }
    return spriteFrame;
};

/**
 * Create a cc.SpriteFrame with a texture, rect, rotated, offset and originalSize in pixels.
 * @param {cc.Texture2D} texture
 * @param {cc.Rect} rect if parameters' length equal 2, rect in points, else rect in pixels
 * @param {Boolean} [rotated=]
 * @param {cc.Point} [offset=]
 * @param {cc.Size} [originalSize=]
 * @return {cc.SpriteFrame}
 * @example
 * //Create a cc.SpriteFrame with a texture, rect in texture.
 * var frame1 = cc.SpriteFrame.createWithTexture("grossini_dance.png",cc.rect(0,0,90,128));
 *
 * //Create a cc.SpriteFrame with a texture, rect, rotated, offset and originalSize in pixels.
 * var frame2 = cc.SpriteFrame.createWithTexture(texture, frameRect, rotated, offset, sourceSize);
 */
cc.SpriteFrame.createWithTexture = function (texture, rect, rotated, offset, originalSize) {
    var spriteFrame = new cc.SpriteFrame();
    switch (arguments.length) {
        case 2:
            spriteFrame.initWithTexture(texture, rect);
            break;
        case 5:
            spriteFrame.initWithTexture(texture, rect, rotated, offset, originalSize);
            break;
        default:
            throw "Argument must be non-nil ";
            break;
    }
    return spriteFrame;
};

cc.SpriteFrame._frameWithTextureForCanvas = function (texture, rect, rotated, offset, originalSize) {
    var spriteFrame = new cc.SpriteFrame();
    spriteFrame._texture = texture;
    spriteFrame._rectInPixels = rect;
    spriteFrame._rect = cc.RECT_PIXELS_TO_POINTS(rect);
    spriteFrame._offsetInPixels.x = offset.x;
    spriteFrame._offsetInPixels.y = offset.y;
    spriteFrame._offset = cc.POINT_PIXELS_TO_POINTS(spriteFrame._offsetInPixels);
    spriteFrame._originalSizeInPixels.width = originalSize.width;
    spriteFrame._originalSizeInPixels.height = originalSize.height;
    spriteFrame._originalSize = cc.SIZE_PIXELS_TO_POINTS(spriteFrame._originalSizeInPixels);
    spriteFrame._rotated = rotated;
    return spriteFrame;
};