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CCEGLView.js
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/****************************************************************************
Copyright (c) 2008-2010 Ricardo Quesada
Copyright (c) 2011-2012 cocos2d-x.org
Copyright (c) 2013-2014 Chukong Technologies Inc.
http://www.cocos2d-x.org
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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.
****************************************************************************/
/**
* @ignore
*/
cc.Touches = [];
cc.TouchesIntergerDict = {};
cc.DENSITYDPI_DEVICE = "device-dpi";
cc.DENSITYDPI_HIGH = "high-dpi";
cc.DENSITYDPI_MEDIUM = "medium-dpi";
cc.DENSITYDPI_LOW = "low-dpi";
var __BrowserGetter = {
init: function(){
this.html = document.getElementsByTagName("html")[0];
},
availWidth: function(frame){
if(!frame || frame === this.html)
return window.innerWidth;
else
return frame.clientWidth;
},
availHeight: function(frame){
if(!frame || frame === this.html)
return window.innerHeight;
else
return frame.clientHeight;
},
meta: {
"width": "device-width"
},
adaptationType: cc.sys.browserType
};
if(window.navigator.userAgent.indexOf("OS 8_1_") > -1) //this mistake like MIUI, so use of MIUI treatment method
__BrowserGetter.adaptationType = cc.sys.BROWSER_TYPE_MIUI;
if(cc.sys.os === cc.sys.OS_IOS) // All browsers are WebView
__BrowserGetter.adaptationType = cc.sys.BROWSER_TYPE_SAFARI;
switch(__BrowserGetter.adaptationType){
case cc.sys.BROWSER_TYPE_SAFARI:
__BrowserGetter.meta["minimal-ui"] = "true";
__BrowserGetter.availWidth = function(frame){
return frame.clientWidth;
};
__BrowserGetter.availHeight = function(frame){
return frame.clientHeight;
};
break;
case cc.sys.BROWSER_TYPE_CHROME:
__BrowserGetter.__defineGetter__("target-densitydpi", function(){
return cc.view._targetDensityDPI;
});
case cc.sys.BROWSER_TYPE_SOUGOU:
case cc.sys.BROWSER_TYPE_UC:
__BrowserGetter.availWidth = function(frame){
return frame.clientWidth;
};
__BrowserGetter.availHeight = function(frame){
return frame.clientHeight;
};
break;
case cc.sys.BROWSER_TYPE_MIUI:
__BrowserGetter.init = function(view){
if(view.__resizeWithBrowserSize) return;
var resize = function(){
view.setDesignResolutionSize(
view._designResolutionSize.width,
view._designResolutionSize.height,
view._resolutionPolicy
);
window.removeEventListener("resize", resize, false);
};
window.addEventListener("resize", resize, false);
};
break;
}
var _scissorRect = cc.rect();
/**
* cc.view is the singleton object which represents the game window.<br/>
* It's main task include: <br/>
* - Apply the design resolution policy<br/>
* - Provide interaction with the window, like resize event on web, retina display support, etc...<br/>
* - Manage the game view port which can be different with the window<br/>
* - Manage the content scale and translation<br/>
* <br/>
* Since the cc.view is a singleton, you don't need to call any constructor or create functions,<br/>
* the standard way to use it is by calling:<br/>
* - cc.view.methodName(); <br/>
* @class
* @name cc.view
* @extend cc.Class
*/
cc.EGLView = cc.Class.extend(/** @lends cc.view# */{
_delegate: null,
// Size of parent node that contains cc.container and cc._canvas
_frameSize: null,
// resolution size, it is the size appropriate for the app resources.
_designResolutionSize: null,
_originalDesignResolutionSize: null,
// Viewport is the container's rect related to content's coordinates in pixel
_viewPortRect: null,
// The visible rect in content's coordinate in point
_visibleRect: null,
_retinaEnabled: false,
_autoFullScreen: false,
// The device's pixel ratio (for retina displays)
_devicePixelRatio: 1,
// the view name
_viewName: "",
// Custom callback for resize event
_resizeCallback: null,
_scaleX: 1,
_originalScaleX: 1,
_scaleY: 1,
_originalScaleY: 1,
_isRotated: false,
_orientation: 3,
_resolutionPolicy: null,
_rpExactFit: null,
_rpShowAll: null,
_rpNoBorder: null,
_rpFixedHeight: null,
_rpFixedWidth: null,
_initialized: false,
_contentTranslateLeftTop: null,
// Parent node that contains cc.container and cc._canvas
_frame: null,
_frameZoomFactor: 1.0,
__resizeWithBrowserSize: false,
_isAdjustViewPort: true,
_targetDensityDPI: null,
/**
* Constructor of cc.EGLView
*/
ctor: function () {
var _t = this, d = document, _strategyer = cc.ContainerStrategy, _strategy = cc.ContentStrategy;
__BrowserGetter.init(this);
_t._frame = (cc.container.parentNode === d.body) ? d.documentElement : cc.container.parentNode;
_t._frameSize = cc.size(0, 0);
_t._initFrameSize();
var w = cc._canvas.width, h = cc._canvas.height;
_t._designResolutionSize = cc.size(w, h);
_t._originalDesignResolutionSize = cc.size(w, h);
_t._viewPortRect = cc.rect(0, 0, w, h);
_t._visibleRect = cc.rect(0, 0, w, h);
_t._contentTranslateLeftTop = {left: 0, top: 0};
_t._viewName = "Cocos2dHTML5";
var sys = cc.sys;
_t.enableRetina(sys.os === sys.OS_IOS || sys.os === sys.OS_OSX);
_t.enableAutoFullScreen(sys.isMobile && sys.browserType !== sys.BROWSER_TYPE_BAIDU);
cc.visibleRect && cc.visibleRect.init(_t._visibleRect);
// Setup system default resolution policies
_t._rpExactFit = new cc.ResolutionPolicy(_strategyer.EQUAL_TO_FRAME, _strategy.EXACT_FIT);
_t._rpShowAll = new cc.ResolutionPolicy(_strategyer.PROPORTION_TO_FRAME, _strategy.SHOW_ALL);
_t._rpNoBorder = new cc.ResolutionPolicy(_strategyer.EQUAL_TO_FRAME, _strategy.NO_BORDER);
_t._rpFixedHeight = new cc.ResolutionPolicy(_strategyer.EQUAL_TO_FRAME, _strategy.FIXED_HEIGHT);
_t._rpFixedWidth = new cc.ResolutionPolicy(_strategyer.EQUAL_TO_FRAME, _strategy.FIXED_WIDTH);
_t._targetDensityDPI = cc.DENSITYDPI_HIGH;
},
// Resize helper functions
_resizeEvent: function () {
var view;
if (this.setDesignResolutionSize) {
view = this;
} else {
view = cc.view;
}
// Check frame size changed or not
var prevFrameW = view._frameSize.width, prevFrameH = view._frameSize.height, prevRotated = view._isRotated;
view._initFrameSize();
if (view._isRotated === prevRotated && view._frameSize.width === prevFrameW && view._frameSize.height === prevFrameH)
return;
// Frame size changed, do resize works
if (view._resizeCallback) {
view._resizeCallback.call();
}
var width = view._originalDesignResolutionSize.width;
var height = view._originalDesignResolutionSize.height;
if (width > 0) {
view.setDesignResolutionSize(width, height, view._resolutionPolicy);
}
},
/**
* <p>
* Sets view's target-densitydpi for android mobile browser. it can be set to: <br/>
* 1. cc.DENSITYDPI_DEVICE, value is "device-dpi" <br/>
* 2. cc.DENSITYDPI_HIGH, value is "high-dpi" (default value) <br/>
* 3. cc.DENSITYDPI_MEDIUM, value is "medium-dpi" (browser's default value) <br/>
* 4. cc.DENSITYDPI_LOW, value is "low-dpi" <br/>
* 5. Custom value, e.g: "480" <br/>
* </p>
* @param {String} densityDPI
*/
setTargetDensityDPI: function(densityDPI){
this._targetDensityDPI = densityDPI;
this._adjustViewportMeta();
},
/**
* Returns the current target-densitydpi value of cc.view.
* @returns {String}
*/
getTargetDensityDPI: function(){
return this._targetDensityDPI;
},
/**
* Sets whether resize canvas automatically when browser's size changed.<br/>
* Useful only on web.
* @param {Boolean} enabled Whether enable automatic resize with browser's resize event
*/
resizeWithBrowserSize: function (enabled) {
if (enabled) {
//enable
if (!this.__resizeWithBrowserSize) {
this.__resizeWithBrowserSize = true;
window.addEventListener('resize', this._resizeEvent);
window.addEventListener('orientationchange', this._resizeEvent);
}
} else {
//disable
if (this.__resizeWithBrowserSize) {
this.__resizeWithBrowserSize = false;
window.removeEventListener('resize', this._resizeEvent);
window.removeEventListener('orientationchange', this._resizeEvent);
}
}
},
/**
* Sets the callback function for cc.view's resize action,<br/>
* this callback will be invoked before applying resolution policy, <br/>
* so you can do any additional modifications within the callback.<br/>
* Useful only on web.
* @param {Function|null} callback The callback function
*/
setResizeCallback: function (callback) {
if (cc.isFunction(callback) || callback == null) {
this._resizeCallback = callback;
}
},
/**
* Sets the orientation of the game, it can be landscape, portrait or auto.
* When set it to landscape or portrait, and screen w/h ratio doesn't fit,
* cc.view will automatically rotate the game canvas using CSS.
* Note that this function doesn't have any effect in native,
* in native, you need to set the application orientation in native project settings
* @param {Number} orientation - Possible values: cc.ORIENTATION_LANDSCAPE | cc.ORIENTATION_PORTRAIT | cc.ORIENTATION_AUTO
*/
setOrientation: function (orientation) {
orientation = orientation & cc.ORIENTATION_AUTO;
if (orientation) {
this._orientation = orientation;
}
},
_initFrameSize: function () {
var locFrameSize = this._frameSize;
var w = __BrowserGetter.availWidth(this._frame);
var h = __BrowserGetter.availHeight(this._frame);
var isLandscape = w >= h;
if (!cc.sys.isMobile ||
(isLandscape && this._orientation & cc.ORIENTATION_LANDSCAPE) ||
(!isLandscape && this._orientation & cc.ORIENTATION_PORTRAIT)) {
locFrameSize.width = w;
locFrameSize.height = h;
cc.container.style['-webkit-transform'] = 'rotate(0deg)';
cc.container.style.transform = 'rotate(0deg)';
this._isRotated = false;
}
else {
locFrameSize.width = h;
locFrameSize.height = w;
cc.container.style['-webkit-transform'] = 'rotate(90deg)';
cc.container.style.transform = 'rotate(90deg)';
cc.container.style['-webkit-transform-origin'] = '0px 0px 0px';
cc.container.style.transformOrigin = '0px 0px 0px';
this._isRotated = true;
}
},
// hack
_adjustSizeKeepCanvasSize: function () {
var designWidth = this._originalDesignResolutionSize.width;
var designHeight = this._originalDesignResolutionSize.height;
if (designWidth > 0)
this.setDesignResolutionSize(designWidth, designHeight, this._resolutionPolicy);
},
_setViewportMeta: function (metas, overwrite) {
var vp = document.getElementById("cocosMetaElement");
if(vp && overwrite){
document.head.removeChild(vp);
}
var elems = document.getElementsByName("viewport"),
currentVP = elems ? elems[0] : null,
content, key, pattern;
content = currentVP ? currentVP.content : "";
vp = vp || document.createElement("meta");
vp.id = "cocosMetaElement";
vp.name = "viewport";
vp.content = "";
for (key in metas) {
if (content.indexOf(key) == -1) {
content += "," + key + "=" + metas[key];
}
else if (overwrite) {
pattern = new RegExp(key+"\s*=\s*[^,]+");
content.replace(pattern, key + "=" + metas[key]);
}
}
if(/^,/.test(content))
content = content.substr(1);
vp.content = content;
// For adopting certain android devices which don't support second viewport
if (currentVP)
currentVP.content = content;
document.head.appendChild(vp);
},
_adjustViewportMeta: function () {
if (this._isAdjustViewPort) {
this._setViewportMeta(__BrowserGetter.meta, false);
// Only adjust viewport once
this._isAdjustViewPort = false;
}
},
// RenderTexture hacker
_setScaleXYForRenderTexture: function () {
//hack for RenderTexture on canvas mode when adapting multiple resolution resources
var scaleFactor = cc.contentScaleFactor();
this._scaleX = scaleFactor;
this._scaleY = scaleFactor;
},
// Other helper functions
_resetScale: function () {
this._scaleX = this._originalScaleX;
this._scaleY = this._originalScaleY;
},
// Useless, just make sure the compatibility temporarily, should be removed
_adjustSizeToBrowser: function () {
},
initialize: function () {
this._initialized = true;
},
/**
* Sets whether the engine modify the "viewport" meta in your web page.<br/>
* It's enabled by default, we strongly suggest you not to disable it.<br/>
* And even when it's enabled, you can still set your own "viewport" meta, it won't be overridden<br/>
* Only useful on web
* @param {Boolean} enabled Enable automatic modification to "viewport" meta
*/
adjustViewPort: function (enabled) {
this._isAdjustViewPort = enabled;
},
/**
* Retina support is enabled by default for Apple device but disabled for other devices,<br/>
* it takes effect only when you called setDesignResolutionPolicy<br/>
* Only useful on web
* @param {Boolean} enabled Enable or disable retina display
*/
enableRetina: function(enabled) {
this._retinaEnabled = enabled ? true : false;
},
/**
* Check whether retina display is enabled.<br/>
* Only useful on web
* @return {Boolean}
*/
isRetinaEnabled: function() {
return this._retinaEnabled;
},
/**
* If enabled, the application will try automatically to enter full screen mode on mobile devices<br/>
* You can pass true as parameter to enable it and disable it by passing false.<br/>
* Only useful on web
* @param {Boolean} enabled Enable or disable auto full screen on mobile devices
*/
enableAutoFullScreen: function(enabled) {
if (enabled && enabled !== this._autoFullScreen && cc.sys.isMobile && this._frame === document.documentElement) {
// Automatically full screen when user touches on mobile version
this._autoFullScreen = true;
cc.screen.autoFullScreen(this._frame);
}
else {
this._autoFullScreen = false;
}
},
/**
* Check whether auto full screen is enabled.<br/>
* Only useful on web
* @return {Boolean} Auto full screen enabled or not
*/
isAutoFullScreenEnabled: function() {
return this._autoFullScreen;
},
/**
* Force destroying EGL view, subclass must implement this method.
*/
end: function () {
},
/**
* Get whether render system is ready(no matter opengl or canvas),<br/>
* this name is for the compatibility with cocos2d-x, subclass must implement this method.
* @return {Boolean}
*/
isOpenGLReady: function () {
return (cc.game.canvas && cc._renderContext);
},
/*
* Set zoom factor for frame. This method is for debugging big resolution (e.g.new ipad) app on desktop.
* @param {Number} zoomFactor
*/
setFrameZoomFactor: function (zoomFactor) {
this._frameZoomFactor = zoomFactor;
this.centerWindow();
cc.director.setProjection(cc.director.getProjection());
},
/**
* Exchanges the front and back buffers, subclass must implement this method.
*/
swapBuffers: function () {
},
/**
* Open or close IME keyboard , subclass must implement this method.
* @param {Boolean} isOpen
*/
setIMEKeyboardState: function (isOpen) {
},
/**
* Sets the resolution translate on EGLView
* @param {Number} offsetLeft
* @param {Number} offsetTop
*/
setContentTranslateLeftTop: function (offsetLeft, offsetTop) {
this._contentTranslateLeftTop = {left: offsetLeft, top: offsetTop};
},
/**
* Returns the resolution translate on EGLView
* @return {cc.Size|Object}
*/
getContentTranslateLeftTop: function () {
return this._contentTranslateLeftTop;
},
/**
* Returns the canvas size of the view.<br/>
* On native platforms, it returns the screen size since the view is a fullscreen view.<br/>
* On web, it returns the size of the canvas element.
* @return {cc.Size}
*/
getCanvasSize: function () {
return cc.size(cc._canvas.width, cc._canvas.height);
},
/**
* Returns the frame size of the view.<br/>
* On native platforms, it returns the screen size since the view is a fullscreen view.<br/>
* On web, it returns the size of the canvas's outer DOM element.
* @return {cc.Size}
*/
getFrameSize: function () {
return cc.size(this._frameSize.width, this._frameSize.height);
},
/**
* On native, it sets the frame size of view.<br/>
* On web, it sets the size of the canvas's outer DOM element.
* @param {Number} width
* @param {Number} height
*/
setFrameSize: function (width, height) {
this._frameSize.width = width;
this._frameSize.height = height;
this._frame.style.width = width + "px";
this._frame.style.height = height + "px";
//this.centerWindow();
this._resizeEvent();
cc.director.setProjection(cc.director.getProjection());
},
/**
* Empty function
*/
centerWindow: function () {
},
/**
* Returns the visible area size of the view port.
* @return {cc.Size}
*/
getVisibleSize: function () {
return cc.size(this._visibleRect.width,this._visibleRect.height);
},
/**
* Returns the visible area size of the view port.
* @return {cc.Size}
*/
getVisibleSizeInPixel: function () {
return cc.size( this._visibleRect.width * this._scaleX,
this._visibleRect.height * this._scaleY );
},
/**
* Returns the visible origin of the view port.
* @return {cc.Point}
*/
getVisibleOrigin: function () {
return cc.p(this._visibleRect.x,this._visibleRect.y);
},
/**
* Returns the visible origin of the view port.
* @return {cc.Point}
*/
getVisibleOriginInPixel: function () {
return cc.p(this._visibleRect.x * this._scaleX,
this._visibleRect.y * this._scaleY);
},
/**
* Returns whether developer can set content's scale factor.
* @return {Boolean}
*/
canSetContentScaleFactor: function () {
return true;
},
/**
* Returns the current resolution policy
* @see cc.ResolutionPolicy
* @return {cc.ResolutionPolicy}
*/
getResolutionPolicy: function () {
return this._resolutionPolicy;
},
/**
* Sets the current resolution policy
* @see cc.ResolutionPolicy
* @param {cc.ResolutionPolicy|Number} resolutionPolicy
*/
setResolutionPolicy: function (resolutionPolicy) {
var _t = this;
if (resolutionPolicy instanceof cc.ResolutionPolicy) {
_t._resolutionPolicy = resolutionPolicy;
}
// Ensure compatibility with JSB
else {
var _locPolicy = cc.ResolutionPolicy;
if(resolutionPolicy === _locPolicy.EXACT_FIT)
_t._resolutionPolicy = _t._rpExactFit;
if(resolutionPolicy === _locPolicy.SHOW_ALL)
_t._resolutionPolicy = _t._rpShowAll;
if(resolutionPolicy === _locPolicy.NO_BORDER)
_t._resolutionPolicy = _t._rpNoBorder;
if(resolutionPolicy === _locPolicy.FIXED_HEIGHT)
_t._resolutionPolicy = _t._rpFixedHeight;
if(resolutionPolicy === _locPolicy.FIXED_WIDTH)
_t._resolutionPolicy = _t._rpFixedWidth;
}
},
/**
* Sets the resolution policy with designed view size in points.<br/>
* The resolution policy include: <br/>
* [1] ResolutionExactFit Fill screen by stretch-to-fit: if the design resolution ratio of width to height is different from the screen resolution ratio, your game view will be stretched.<br/>
* [2] ResolutionNoBorder Full screen without black border: if the design resolution ratio of width to height is different from the screen resolution ratio, two areas of your game view will be cut.<br/>
* [3] ResolutionShowAll Full screen with black border: if the design resolution ratio of width to height is different from the screen resolution ratio, two black borders will be shown.<br/>
* [4] ResolutionFixedHeight Scale the content's height to screen's height and proportionally scale its width<br/>
* [5] ResolutionFixedWidth Scale the content's width to screen's width and proportionally scale its height<br/>
* [cc.ResolutionPolicy] [Web only feature] Custom resolution policy, constructed by cc.ResolutionPolicy<br/>
* @param {Number} width Design resolution width.
* @param {Number} height Design resolution height.
* @param {cc.ResolutionPolicy|Number} resolutionPolicy The resolution policy desired
*/
setDesignResolutionSize: function (width, height, resolutionPolicy) {
// Defensive code
if( !(width > 0 || height > 0) ){
cc.log(cc._LogInfos.EGLView_setDesignResolutionSize);
return;
}
this.setResolutionPolicy(resolutionPolicy);
var policy = this._resolutionPolicy;
if (!policy){
cc.log(cc._LogInfos.EGLView_setDesignResolutionSize_2);
return;
}
policy.preApply(this);
// Reinit frame size
if(cc.sys.isMobile)
this._adjustViewportMeta();
this._initFrameSize();
this._originalDesignResolutionSize.width = this._designResolutionSize.width = width;
this._originalDesignResolutionSize.height = this._designResolutionSize.height = height;
var result = policy.apply(this, this._designResolutionSize);
if(result.scale && result.scale.length === 2){
this._scaleX = result.scale[0];
this._scaleY = result.scale[1];
}
if(result.viewport){
var vp = this._viewPortRect,
vb = this._visibleRect,
rv = result.viewport;
vp.x = rv.x;
vp.y = rv.y;
vp.width = rv.width;
vp.height = rv.height;
vb.x = -vp.x / this._scaleX;
vb.y = -vp.y / this._scaleY;
vb.width = cc._canvas.width / this._scaleX;
vb.height = cc._canvas.height / this._scaleY;
cc._renderContext.setOffset && cc._renderContext.setOffset(vp.x, -vp.y);
}
// reset director's member variables to fit visible rect
var director = cc.director;
director._winSizeInPoints.width = this._designResolutionSize.width;
director._winSizeInPoints.height = this._designResolutionSize.height;
policy.postApply(this);
cc.winSize.width = director._winSizeInPoints.width;
cc.winSize.height = director._winSizeInPoints.height;
if (cc._renderType === cc.game.RENDER_TYPE_WEBGL) {
// reset director's member variables to fit visible rect
director.setGLDefaultValues();
}
this._originalScaleX = this._scaleX;
this._originalScaleY = this._scaleY;
// For editbox
if (cc.DOM)
cc.DOM._resetEGLViewDiv();
cc.visibleRect && cc.visibleRect.init(this._visibleRect);
},
/**
* Returns the designed size for the view.
* Default resolution size is the same as 'getFrameSize'.
* @return {cc.Size}
*/
getDesignResolutionSize: function () {
return cc.size(this._designResolutionSize.width, this._designResolutionSize.height);
},
/**
* Sets the document body to desired pixel resolution and fit the game content to it.
* This function is very useful for adaptation in mobile browsers.
* In some HD android devices, the resolution is very high, but its browser performance may not be very good.
* In this case, enabling retina display is very costy and not suggested, and if retina is disabled, the image may be blurry.
* But this API can be helpful to set a desired pixel resolution which is in between.
* This API will do the following:
* 1. Set viewport's width to the desired width in pixel
* 2. Set body width to the exact pixel resolution
* 3. The resolution policy will be reset with designed view size in points.
* @param {Number} width Design resolution width.
* @param {Number} height Design resolution height.
* @param {cc.ResolutionPolicy|Number} resolutionPolicy The resolution policy desired
*/
setRealPixelResolution: function (width, height, resolutionPolicy) {
// Set viewport's width
this._setViewportMeta({"width": width, "target-densitydpi": cc.DENSITYDPI_DEVICE}, true);
// Set body width to the exact pixel resolution
document.body.style.width = width + "px";
document.body.style.left = "0px";
document.body.style.top = "0px";
// Reset the resolution size and policy
this.setDesignResolutionSize(width, height, resolutionPolicy);
},
/**
* Sets view port rectangle with points.
* @param {Number} x
* @param {Number} y
* @param {Number} w width
* @param {Number} h height
*/
setViewPortInPoints: function (x, y, w, h) {
var locFrameZoomFactor = this._frameZoomFactor, locScaleX = this._scaleX, locScaleY = this._scaleY;
cc._renderContext.viewport((x * locScaleX * locFrameZoomFactor + this._viewPortRect.x * locFrameZoomFactor),
(y * locScaleY * locFrameZoomFactor + this._viewPortRect.y * locFrameZoomFactor),
(w * locScaleX * locFrameZoomFactor),
(h * locScaleY * locFrameZoomFactor));
},
/**
* Sets Scissor rectangle with points.
* @param {Number} x
* @param {Number} y
* @param {Number} w
* @param {Number} h
*/
setScissorInPoints: function (x, y, w, h) {
var zoomFactor = this._frameZoomFactor, scaleX = this._scaleX, scaleY = this._scaleY;
_scissorRect.x = x;
_scissorRect.y = y;
_scissorRect.width = w;
_scissorRect.height = h;
cc._renderContext.scissor(x * scaleX * zoomFactor + this._viewPortRect.x * zoomFactor,
y * scaleY * zoomFactor + this._viewPortRect.y * zoomFactor,
w * scaleX * zoomFactor,
h * scaleY * zoomFactor);
},
/**
* Returns whether GL_SCISSOR_TEST is enable
* @return {Boolean}
*/
isScissorEnabled: function () {
return cc._renderContext.isEnabled(gl.SCISSOR_TEST);
},
/**
* Returns the current scissor rectangle
* @return {cc.Rect}
*/
getScissorRect: function () {
return cc.rect(_scissorRect);
},
/**
* Sets the name of the view
* @param {String} viewName
*/
setViewName: function (viewName) {
if (viewName != null && viewName.length > 0) {
this._viewName = viewName;
}
},
/**
* Returns the name of the view
* @return {String}
*/
getViewName: function () {
return this._viewName;
},
/**
* Returns the view port rectangle.
* @return {cc.Rect}
*/
getViewPortRect: function () {
return this._viewPortRect;
},
/**
* Returns scale factor of the horizontal direction (X axis).
* @return {Number}
*/
getScaleX: function () {
return this._scaleX;
},
/**
* Returns scale factor of the vertical direction (Y axis).
* @return {Number}
*/
getScaleY: function () {
return this._scaleY;
},
/**
* Returns device pixel ratio for retina display.
* @return {Number}
*/
getDevicePixelRatio: function() {
return this._devicePixelRatio;
},
/**
* Returns the real location in view for a translation based on a related position
* @param {Number} tx The X axis translation
* @param {Number} ty The Y axis translation
* @param {Object} relatedPos The related position object including "left", "top", "width", "height" informations
* @return {cc.Point}
*/
convertToLocationInView: function (tx, ty, relatedPos) {
var x = this._devicePixelRatio * (tx - relatedPos.left);
var y = this._devicePixelRatio * (relatedPos.top + relatedPos.height - ty);
return this._isRotated ? {x: this._viewPortRect.width - y, y: x} : {x: x, y: y};
},
_convertMouseToLocationInView: function(point, relatedPos) {
var locViewPortRect = this._viewPortRect, _t = this;
point.x = ((_t._devicePixelRatio * (point.x - relatedPos.left)) - locViewPortRect.x) / _t._scaleX;
point.y = (_t._devicePixelRatio * (relatedPos.top + relatedPos.height - point.y) - locViewPortRect.y) / _t._scaleY;
},
_convertPointWithScale: function (point) {
var viewport = this._viewPortRect;
point.x = (point.x - viewport.x) / this._scaleX;
point.y = (point.y - viewport.y) / this._scaleY;
},
_convertTouchesWithScale: function (touches) {
var viewport = this._viewPortRect, scaleX = this._scaleX, scaleY = this._scaleY,
selTouch, selPoint, selPrePoint;
for( var i = 0; i < touches.length; i++){
selTouch = touches[i];
selPoint = selTouch._point;
selPrePoint = selTouch._prevPoint;
selPoint.x = (selPoint.x - viewport.x) / scaleX;
selPoint.y = (selPoint.y - viewport.y) / scaleY;
selPrePoint.x = (selPrePoint.x - viewport.x) / scaleX;
selPrePoint.y = (selPrePoint.y - viewport.y) / scaleY;
}
}
});
/**
* @function
* @return {cc.EGLView}
* @private
*/
cc.EGLView._getInstance = function () {
if (!this._instance) {
this._instance = this._instance || new cc.EGLView();
this._instance.initialize();
}
return this._instance;
};
/**
* <p>cc.ContainerStrategy class is the root strategy class of container's scale strategy,
* it controls the behavior of how to scale the cc.container and cc._canvas object</p>
*
* @class
* @extends cc.Class
*/
cc.ContainerStrategy = cc.Class.extend(/** @lends cc.ContainerStrategy# */{
/**
* Manipulation before appling the strategy
* @param {cc.view} The target view
*/
preApply: function (view) {
},
/**
* Function to apply this strategy
* @param {cc.view} view
* @param {cc.Size} designedResolution
*/
apply: function (view, designedResolution) {
},
/**
* Manipulation after applying the strategy
* @param {cc.view} view The target view
*/
postApply: function (view) {
},
_setupContainer: function (view, w, h) {
var locCanvas = cc.game.canvas, locContainer = cc.game.container;
// Setup style
locContainer.style.width = locCanvas.style.width = w + 'px';
locContainer.style.height = locCanvas.style.height = h + 'px';
// Setup pixel ratio for retina display
var devicePixelRatio = view._devicePixelRatio = 1;
if (view.isRetinaEnabled())
devicePixelRatio = view._devicePixelRatio = Math.min(2, window.devicePixelRatio || 1);
// Setup canvas
locCanvas.width = w * devicePixelRatio;
locCanvas.height = h * devicePixelRatio;
cc._renderContext.resetCache && cc._renderContext.resetCache();
},
_fixContainer: function () {
// Add container to document body
document.body.insertBefore(cc.container, document.body.firstChild);
// Set body's width height to window's size, and forbid overflow, so that game will be centered
var bs = document.body.style;
bs.width = window.innerWidth + "px";
bs.height = window.innerHeight + "px";
bs.overflow = "hidden";
// Body size solution doesn't work on all mobile browser so this is the aleternative: fixed container
var contStyle = cc.container.style;
contStyle.position = "fixed";
contStyle.left = contStyle.top = "0px";
// Reposition body
document.body.scrollTop = 0;
}
});
/**
* <p>cc.ContentStrategy class is the root strategy class of content's scale strategy,
* it controls the behavior of how to scale the scene and setup the viewport for the game</p>
*
* @class
* @extends cc.Class
*/
cc.ContentStrategy = cc.Class.extend(/** @lends cc.ContentStrategy# */{
_result: {
scale: [1, 1],
viewport: null
},
_buildResult: function (containerW, containerH, contentW, contentH, scaleX, scaleY) {
// Makes content fit better the canvas
Math.abs(containerW - contentW) < 2 && (contentW = containerW);
Math.abs(containerH - contentH) < 2 && (contentH = containerH);
var viewport = cc.rect(Math.round((containerW - contentW) / 2),
Math.round((containerH - contentH) / 2),
contentW, contentH);
// Translate the content
if (cc._renderType === cc.game.RENDER_TYPE_CANVAS){
//TODO: modify something for setTransform
//cc._renderContext.translate(viewport.x, viewport.y + contentH);
}
this._result.scale = [scaleX, scaleY];
this._result.viewport = viewport;
return this._result;
},