161 lines
4.0 KiB
C++
161 lines
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; 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 "mozilla/dom/SVGTextContentElement.h"
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#include "nsISVGPoint.h"
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#include "SVGTextFrame.h"
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#include "mozilla/dom/SVGIRect.h"
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namespace mozilla {
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namespace dom {
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nsSVGEnumMapping SVGTextContentElement::sLengthAdjustMap[] = {
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{ &nsGkAtoms::spacing, SVG_LENGTHADJUST_SPACING },
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{ &nsGkAtoms::spacingAndGlyphs, SVG_LENGTHADJUST_SPACINGANDGLYPHS },
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{ nullptr, 0 }
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};
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nsSVGElement::EnumInfo SVGTextContentElement::sEnumInfo[1] =
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{
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{ &nsGkAtoms::lengthAdjust, sLengthAdjustMap, SVG_LENGTHADJUST_SPACING }
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};
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nsSVGElement::LengthInfo SVGTextContentElement::sLengthInfo[1] =
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{
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{ &nsGkAtoms::textLength, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::XY }
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};
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SVGTextFrame*
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SVGTextContentElement::GetSVGTextFrame()
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{
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nsIFrame* frame = GetPrimaryFrame(Flush_Layout);
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while (frame) {
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SVGTextFrame* textFrame = do_QueryFrame(frame);
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if (textFrame) {
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return textFrame;
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}
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frame = frame->GetParent();
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}
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return nullptr;
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}
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already_AddRefed<SVGAnimatedLength>
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SVGTextContentElement::TextLength()
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{
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return LengthAttributes()[TEXTLENGTH].ToDOMAnimatedLength(this);
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}
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already_AddRefed<SVGAnimatedEnumeration>
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SVGTextContentElement::LengthAdjust()
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{
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return EnumAttributes()[LENGTHADJUST].ToDOMAnimatedEnum(this);
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}
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//----------------------------------------------------------------------
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int32_t
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SVGTextContentElement::GetNumberOfChars()
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{
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SVGTextFrame* textFrame = GetSVGTextFrame();
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return textFrame ? textFrame->GetNumberOfChars(this) : 0;
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}
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float
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SVGTextContentElement::GetComputedTextLength()
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{
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SVGTextFrame* textFrame = GetSVGTextFrame();
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return textFrame ? textFrame->GetComputedTextLength(this) : 0.0f;
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}
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void
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SVGTextContentElement::SelectSubString(uint32_t charnum, uint32_t nchars, ErrorResult& rv)
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{
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SVGTextFrame* textFrame = GetSVGTextFrame();
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if (!textFrame)
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return;
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rv = textFrame->SelectSubString(this, charnum, nchars);
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}
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float
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SVGTextContentElement::GetSubStringLength(uint32_t charnum, uint32_t nchars, ErrorResult& rv)
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{
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SVGTextFrame* textFrame = GetSVGTextFrame();
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if (!textFrame)
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return 0.0f;
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float length = 0.0f;
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rv = textFrame->GetSubStringLength(this, charnum, nchars, &length);
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return length;
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}
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already_AddRefed<nsISVGPoint>
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SVGTextContentElement::GetStartPositionOfChar(uint32_t charnum, ErrorResult& rv)
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{
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SVGTextFrame* textFrame = GetSVGTextFrame();
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if (!textFrame) {
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rv.Throw(NS_ERROR_FAILURE);
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return nullptr;
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}
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nsCOMPtr<nsISVGPoint> point;
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rv = textFrame->GetStartPositionOfChar(this, charnum, getter_AddRefs(point));
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return point.forget();
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}
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already_AddRefed<nsISVGPoint>
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SVGTextContentElement::GetEndPositionOfChar(uint32_t charnum, ErrorResult& rv)
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{
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SVGTextFrame* textFrame = GetSVGTextFrame();
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if (!textFrame) {
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rv.Throw(NS_ERROR_FAILURE);
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return nullptr;
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}
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nsCOMPtr<nsISVGPoint> point;
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rv = textFrame->GetEndPositionOfChar(this, charnum, getter_AddRefs(point));
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return point.forget();
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}
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already_AddRefed<SVGIRect>
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SVGTextContentElement::GetExtentOfChar(uint32_t charnum, ErrorResult& rv)
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{
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SVGTextFrame* textFrame = GetSVGTextFrame();
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if (!textFrame) {
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rv.Throw(NS_ERROR_FAILURE);
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return nullptr;
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}
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RefPtr<SVGIRect> rect;
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rv = textFrame->GetExtentOfChar(this, charnum, getter_AddRefs(rect));
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return rect.forget();
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}
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float
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SVGTextContentElement::GetRotationOfChar(uint32_t charnum, ErrorResult& rv)
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{
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SVGTextFrame* textFrame = GetSVGTextFrame();
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if (!textFrame) {
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rv.Throw(NS_ERROR_FAILURE);
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return 0.0f;
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}
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float rotation;
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rv = textFrame->GetRotationOfChar(this, charnum, &rotation);
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return rotation;
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}
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int32_t
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SVGTextContentElement::GetCharNumAtPosition(nsISVGPoint& aPoint)
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{
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SVGTextFrame* textFrame = GetSVGTextFrame();
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return textFrame ? textFrame->GetCharNumAtPosition(this, &aPoint) : -1;
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}
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} // namespace dom
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} // namespace mozilla
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