зеркало из https://github.com/mozilla/gecko-dev.git
267 строки
11 KiB
Plaintext
267 строки
11 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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#include "nsIVariant.idl"
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interface nsIDOMWindow;
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interface nsIDOMElement;
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interface nsIDOMHTMLElement;
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interface nsIDOMHTMLImageElement;
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interface nsIDOMHTMLCanvasElement;
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interface nsIDOMXULElement;
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[scriptable, uuid(bbb20a59-524e-4662-981e-5e142814b20c)]
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interface nsIDOMCanvasGradient : nsISupports
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{
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void addColorStop(in float offset, in DOMString color);
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};
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[scriptable, uuid(21dea65c-5c08-4eb1-ac82-81fe95be77b8)]
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interface nsIDOMCanvasPattern : nsISupports
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{
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};
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[scriptable, uuid(2d01715c-ec7d-424a-ab85-e0fd70c8665c)]
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interface nsIDOMTextMetrics : nsISupports
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{
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readonly attribute float width;
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};
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[scriptable, builtinclass, uuid(1ea11207-b3e3-4ffc-a256-bf5c7011e806)]
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interface nsIDOMImageData : nsISupports
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{
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readonly attribute unsigned long width;
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readonly attribute unsigned long height;
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[implicit_jscontext] readonly attribute jsval data;
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};
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[scriptable, uuid(c835c768-2dcc-461c-82f5-3653710d2942)]
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interface nsIDOMCanvasRenderingContext2D : nsISupports
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{
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// back-reference to the canvas element for which
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// this context was created
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readonly attribute nsIDOMHTMLCanvasElement canvas;
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// state
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[binaryname(MozSave)]
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void save();
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[binaryname(MozRestore)]
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void restore();
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// transformations
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void scale(in float x, in float y);
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void rotate(in float angle);
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void translate(in float x, in float y);
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void transform(in float m11, in float m12, in float m21, in float m22, in float dx, in float dy);
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void setTransform(in float m11, in float m12, in float m21, in float m22, in float dx, in float dy);
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[implicit_jscontext]
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attribute jsval mozCurrentTransform; // [ m11, m12, m21, m22, dx, dy ], i.e. row major
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[implicit_jscontext]
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attribute jsval mozCurrentTransformInverse;
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// compositing
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attribute float globalAlpha; /* default 1.0 -- opaque */
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attribute DOMString globalCompositeOperation; /* default "over" */
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// Colors and Styles
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// These attributes work, but are quickstubbed for JS code. Native
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// code should use the _multi variants below.
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attribute nsIVariant strokeStyle;
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attribute nsIVariant fillStyle;
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// These do the actual work. Use these from c++ -- only one of str or iface
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// should be specified; the one that's not null/void is used. For the getter,
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// ifaceType is 0 if it's a string, 1 if it's a pattern, or 2 if it's a gradient
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%{C++
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enum CanvasMultiGetterType {
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CMG_STYLE_STRING = 0,
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CMG_STYLE_PATTERN = 1,
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CMG_STYLE_GRADIENT = 2
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};
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%}
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[noscript] void setStrokeStyle_multi(in DOMString str, in nsISupports iface);
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[noscript] void getStrokeStyle_multi(out DOMString str, out nsISupports iface, out long type);
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[noscript] void setFillStyle_multi(in DOMString str, in nsISupports iface);
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[noscript] void getFillStyle_multi(out DOMString str, out nsISupports iface, out long type);
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//attribute DOMString fillRule;
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attribute DOMString mozFillRule; /* "evenodd", "nonzero" (default) */
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nsIDOMCanvasGradient createLinearGradient (in float x0, in float y0, in float x1, in float y1);
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nsIDOMCanvasGradient createRadialGradient(in float x0, in float y0, in float r0, in float x1, in float y1, in float r1);
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nsIDOMCanvasPattern createPattern(in nsIDOMHTMLElement image, in DOMString repetition);
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attribute float lineWidth; /* default 1 */
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[binaryname(MozLineCap)]
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attribute DOMString lineCap; /* "butt", "round", "square" (default) */
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[binaryname(MozLineJoin)]
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attribute DOMString lineJoin; /* "round", "bevel", "miter" (default) */
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attribute float miterLimit; /* default 10 */
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[implicit_jscontext]
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attribute jsval mozDash; /* default |null| */
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attribute float mozDashOffset; /* default 0.0 */
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// shadows
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attribute float shadowOffsetX;
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attribute float shadowOffsetY;
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attribute float shadowBlur;
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[binaryname(MozShadowColor)]
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attribute DOMString shadowColor;
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// rects
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void clearRect(in float x, in float y, in float w, in float h);
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void fillRect(in float x, in float y, in float w, in float h);
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void strokeRect(in float x, in float y, in float w, in float h);
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// path API
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[binaryname(MozBeginPath)]
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void beginPath();
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[binaryname(MozClosePath)]
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void closePath();
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void moveTo(in float x, in float y);
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void lineTo(in float x, in float y);
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void quadraticCurveTo(in float cpx, in float cpy, in float x, in float y);
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void bezierCurveTo(in float cp1x, in float cp1y, in float cp2x, in float cp2y, in float x, in float y);
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void arcTo(in float x1, in float y1, in float x2, in float y2, in float radius);
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void arc(in float x, in float y, in float r, in float startAngle, in float endAngle, [optional] in boolean anticlockwise);
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void rect(in float x, in float y, in float w, in float h);
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[binaryname(MozFill)]
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void fill();
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[binaryname(MozStroke)]
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void stroke();
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[binaryname(MozClip)]
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void clip();
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// text api
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[binaryname(MozFont)]
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attribute DOMString font; /* default "10px sans-serif" */
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[binaryname(MozTextAlign)]
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attribute DOMString textAlign; /* "start" (default), "end", "left", "right",
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"center" */
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[binaryname(MozTextBaseline)]
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attribute DOMString textBaseline; /* "alphabetic" (default), "top", "hanging",
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"middle", "ideographic", "bottom" */
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void fillText(in DOMString text, in float x, in float y, [optional] in float maxWidth);
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void strokeText(in DOMString text, in float x, in float y, [optional] in float maxWidth);
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nsIDOMTextMetrics measureText(in DOMString text);
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[binaryname(TextStyle)]
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attribute DOMString mozTextStyle;
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// image api
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[optional_argc] void drawImage(in nsIDOMElement image,
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in float a1, in float a2,
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[optional] in float a3,
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[optional] in float a4,
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[optional] in float a5,
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[optional] in float a6,
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[optional] in float a7,
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[optional] in float a8);
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/*
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void drawImage(in HTMLImageElement image, in float dx, in float dy);
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void drawImage(in HTMLImageElement image, in float dx, in float dy, in float sw, in float sh);
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void drawImage(in HTMLImageElement image, in float sx, in float sy, in float sw, in float sh, in float dx, in float dy, in float dw, in float dh);
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*/
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// point-membership test
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boolean isPointInPath(in float x, in float y);
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// pixel manipulation
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// ImageData getImageData (in float x, in float y, in float width, in float height);
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// void putImageData (in ImageData d, in float x, in float y);
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// ImageData = { width: #, height: #, data: [r, g, b, a, ...] }
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[implicit_jscontext]
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nsIDOMImageData getImageData(in double sx, in double sy, in double sw, in double sh);
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// void putImageData(ImageData imagedata, double dx, double dy);
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// void putImageDataHD(ImageData imagedata, double dx, double dy, double dirtyX, double dirtyY, double dirtyWidth, double dirtyHeight);
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// We use jsval for the imageData because that's what our C++ code wants
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[implicit_jscontext, optional_argc]
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void putImageData(in jsval imageData, in double dx, in double dy,
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[optional] in double dirtyX, [optional] in double dirtyY,
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[optional] in double dirtyWidth,
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[optional] in double dirtyHeight);
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// dataLen must be == width*height*4 in this call
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[noscript] void putImageData_explicit(in long x, in long y, in unsigned long width, in unsigned long height,
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[array, size_is(dataLen)] in octet dataPtr, in unsigned long dataLen, in boolean hasDirtyRect,
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in long dirtyX, in long dirtyY, in long dirtyWidth, in long dirtyHeight);
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// ImageData createImageData(double w, double h);
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// ImageData createImageData(ImageData data);
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[implicit_jscontext, optional_argc]
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nsIDOMImageData createImageData(in jsval arg1, [optional] in jsval arg2);
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// image smoothing mode -- if disabled, images won't be smoothed
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// if scaled.
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attribute boolean mozImageSmoothingEnabled;
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// Show the caret if appropriate when drawing
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const unsigned long DRAWWINDOW_DRAW_CARET = 0x01;
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// Don't flush pending layout notifications that could otherwise
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// be batched up
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const unsigned long DRAWWINDOW_DO_NOT_FLUSH = 0x02;
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// Draw scrollbars and scroll the viewport if they are present
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const unsigned long DRAWWINDOW_DRAW_VIEW = 0x04;
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// Use the widget layer manager if available. This means hardware
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// acceleration may be used, but it might actually be slower or
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// lower quality than normal. It will however more accurately reflect
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// the pixels rendered to the screen.
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const unsigned long DRAWWINDOW_USE_WIDGET_LAYERS = 0x08;
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// Don't synchronously decode images - draw what we have
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const unsigned long DRAWWINDOW_ASYNC_DECODE_IMAGES = 0x10;
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/**
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* Renders a region of a window into the canvas. The contents of
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* the window's viewport are rendered, ignoring viewport clipping
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* and scrolling.
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*
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* @param x
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* @param y
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* @param w
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* @param h specify the area of the window to render, in CSS
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* pixels.
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*
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* @param backgroundColor the canvas is filled with this color
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* before we render the window into it. This color may be
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* transparent/translucent. It is given as a CSS color string
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* (e.g., rgb() or rgba()).
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*
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* @param flags Used to better control the drawWindow call.
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* Flags can be ORed together.
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*
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* Of course, the rendering obeys the current scale, transform and
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* globalAlpha values.
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*
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* Hints:
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* -- If 'rgba(0,0,0,0)' is used for the background color, the
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* drawing will be transparent wherever the window is transparent.
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* -- Top-level browsed documents are usually not transparent
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* because the user's background-color preference is applied,
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* but IFRAMEs are transparent if the page doesn't set a background.
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* -- If an opaque color is used for the background color, rendering
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* will be faster because we won't have to compute the window's
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* transparency.
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*
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* This API cannot currently be used by Web content. It is chrome
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* only.
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*/
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void drawWindow(in nsIDOMWindow window, in float x, in float y,
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in float w, in float h, in DOMString bgColor,
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[optional] in unsigned long flags);
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void asyncDrawXULElement(in nsIDOMXULElement elem, in float x, in float y,
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in float w, in float h, in DOMString bgColor,
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[optional] in unsigned long flags);
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};
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