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226 lines
8.8 KiB
Plaintext
226 lines
8.8 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Vladimir Vukicevic <vladimir@pobox.com>
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* Portions created by the Initial Developer are Copyright (C) 2005
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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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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[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, uuid(72635fb6-0c1c-47d7-bf69-49388d5980fc)]
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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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void save();
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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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// 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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attribute nsIVariant strokeStyle;
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attribute nsIVariant fillStyle;
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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 nsIDOMHTMLImageElement image, in DOMString repetition);
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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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attribute DOMString lineCap; /* "butt", "round", "square" (default) */
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attribute DOMString lineJoin; /* "round", "bevel", "miter" (default) */
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attribute float miterLimit; /* default 10 */
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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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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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void beginPath();
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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, in boolean clockwise);
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void rect(in float x, in float y, in float w, in float h);
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void fill();
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void stroke();
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void clip();
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// text api
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attribute DOMString font; /* default "10px sans-serif" */
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attribute DOMString textAlign; /* "start" (default), "end", "left", "right",
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"center" */
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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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attribute DOMString mozTextStyle;
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void mozDrawText(in DOMString textToDraw);
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float mozMeasureText(in DOMString textToMeasure);
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void mozPathText(in DOMString textToPath);
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void mozTextAlongPath(in DOMString textToDraw, in boolean stroke);
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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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void getImageData();
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void putImageData();
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// ImageData createImageData(in float w, in float h);
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void createImageData();
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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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/**
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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 Uused 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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};
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