a1717271ca
Removes obsolete drawPosText codepath, and unifies text decoration behavior. Change-Id: I9c563249ab688a3394445a0e7fe1b9d0661f6f7c
57 lines
2.1 KiB
C++
57 lines
2.1 KiB
C++
/*
|
|
* Copyright (C) 2015 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "Canvas.h"
|
|
|
|
#include <SkDrawFilter.h>
|
|
|
|
namespace android {
|
|
|
|
void Canvas::drawTextDecorations(float x, float y, float length, const SkPaint& paint) {
|
|
uint32_t flags;
|
|
SkDrawFilter* drawFilter = getDrawFilter();
|
|
if (drawFilter) {
|
|
SkPaint paintCopy(paint);
|
|
drawFilter->filter(&paintCopy, SkDrawFilter::kText_Type);
|
|
flags = paintCopy.getFlags();
|
|
} else {
|
|
flags = paint.getFlags();
|
|
}
|
|
if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) {
|
|
// Same values used by Skia
|
|
const float kStdStrikeThru_Offset = (-6.0f / 21.0f);
|
|
const float kStdUnderline_Offset = (1.0f / 9.0f);
|
|
const float kStdUnderline_Thickness = (1.0f / 18.0f);
|
|
|
|
SkScalar left = x;
|
|
SkScalar right = x + length;
|
|
float textSize = paint.getTextSize();
|
|
float strokeWidth = fmax(textSize * kStdUnderline_Thickness, 1.0f);
|
|
if (flags & SkPaint::kUnderlineText_Flag) {
|
|
SkScalar top = y + textSize * kStdUnderline_Offset - 0.5f * strokeWidth;
|
|
SkScalar bottom = y + textSize * kStdUnderline_Offset + 0.5f * strokeWidth;
|
|
drawRect(left, top, right, bottom, paint);
|
|
}
|
|
if (flags & SkPaint::kStrikeThruText_Flag) {
|
|
SkScalar top = y + textSize * kStdStrikeThru_Offset - 0.5f * strokeWidth;
|
|
SkScalar bottom = y + textSize * kStdStrikeThru_Offset + 0.5f * strokeWidth;
|
|
drawRect(left, top, right, bottom, paint);
|
|
}
|
|
}
|
|
}
|
|
|
|
} // namespace android
|