ad44dd500f
Tacking on parts[2] lets us keep things like IWYU comments
#include "something.h" // IWYU pragma: keep
Rerun the script too... not much interesting.
Change-Id: I9f02c81ffece0ecf3e99730d4a12d49e01417ddc
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/213697
Commit-Queue: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
91 lines
2.9 KiB
C++
91 lines
2.9 KiB
C++
// Copyright 2019 Google LLC.
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#include "experimental/editor/run_handler.h"
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#include "include/core/SkFont.h"
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#include "include/core/SkFontMetrics.h"
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#include "include/core/SkString.h"
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#include "include/private/SkTFitsIn.h"
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#include "modules/skshaper/include/SkShaper.h"
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#include "src/core/SkTextBlobPriv.h"
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#include <limits.h>
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#include <string.h>
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using namespace editor;
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void RunHandler::beginLine() {
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fCurrentPosition = fOffset;
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fMaxRunAscent = 0;
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fMaxRunDescent = 0;
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fMaxRunLeading = 0;
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}
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void RunHandler::runInfo(const SkShaper::RunHandler::RunInfo& info) {
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SkFontMetrics metrics;
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info.fFont.getMetrics(&metrics);
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fMaxRunAscent = SkTMin(fMaxRunAscent, metrics.fAscent);
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fMaxRunDescent = SkTMax(fMaxRunDescent, metrics.fDescent);
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fMaxRunLeading = SkTMax(fMaxRunLeading, metrics.fLeading);
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}
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void RunHandler::commitRunInfo() {
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fCurrentPosition.fY -= fMaxRunAscent;
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}
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SkShaper::RunHandler::Buffer RunHandler::runBuffer(const RunInfo& info) {
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int glyphCount = SkTFitsIn<int>(info.glyphCount) ? info.glyphCount : INT_MAX;
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int utf8RangeSize = SkTFitsIn<int>(info.utf8Range.size()) ? info.utf8Range.size() : INT_MAX;
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const auto& runBuffer = SkTextBlobBuilderPriv::AllocRunTextPos(&fBuilder, info.fFont, glyphCount,
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utf8RangeSize, SkString());
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fCurrentGlyphs = runBuffer.glyphs;
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fCurrentPoints = runBuffer.points();
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if (runBuffer.utf8text && fUtf8Text) {
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memcpy(runBuffer.utf8text, fUtf8Text + info.utf8Range.begin(), utf8RangeSize);
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}
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fClusters = runBuffer.clusters;
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fGlyphCount = glyphCount;
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fClusterOffset = info.utf8Range.begin();
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return {runBuffer.glyphs,
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runBuffer.points(),
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nullptr,
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runBuffer.clusters,
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fCurrentPosition};
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}
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void RunHandler::commitRunBuffer(const RunInfo& info) {
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// for (size_t i = 0; i < info.glyphCount; ++i) {
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// SkASSERT(fClusters[i] >= info.utf8Range.begin());
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// // this fails for khmer example.
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// SkASSERT(fClusters[i] < info.utf8Range.end());
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// }
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if (fCallbackFunction) {
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fCallbackFunction(fCallbackContext,
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fUtf8Text,
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info.utf8Range.end(),
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info.glyphCount,
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fCurrentGlyphs,
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fCurrentPoints,
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fClusters,
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info.fFont);
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}
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SkASSERT(0 <= fClusterOffset);
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for (int i = 0; i < fGlyphCount; ++i) {
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SkASSERT(fClusters[i] >= (unsigned)fClusterOffset);
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fClusters[i] -= fClusterOffset;
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}
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fCurrentPosition += info.fAdvance;
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}
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void RunHandler::commitLine() {
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fOffset += { 0, fMaxRunDescent + fMaxRunLeading - fMaxRunAscent };
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}
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sk_sp<SkTextBlob> RunHandler::makeBlob() {
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return fBuilder.make();
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}
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