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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/gfx/skia_util.h"
#include "base/i18n/char_iterator.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "third_party/skia/include/core/SkColorPriv.h"
#include "third_party/skia/include/core/SkShader.h"
#include "third_party/skia/include/effects/SkGradientShader.h"
#include "ui/gfx/rect.h"
namespace gfx {
SkRect RectToSkRect(const gfx::Rect& rect) {
SkRect r;
r.set(SkIntToScalar(rect.x()), SkIntToScalar(rect.y()),
SkIntToScalar(rect.right()), SkIntToScalar(rect.bottom()));
return r;
}
gfx::Rect SkRectToRect(const SkRect& rect) {
return gfx::Rect(static_cast<int>(rect.fLeft),
static_cast<int>(rect.fTop),
static_cast<int>(rect.width()),
static_cast<int>(rect.height()));
}
SkShader* CreateGradientShader(int start_point,
int end_point,
SkColor start_color,
SkColor end_color) {
SkColor grad_colors[2] = { start_color, end_color};
SkPoint grad_points[2];
grad_points[0].set(SkIntToScalar(0), SkIntToScalar(start_point));
grad_points[1].set(SkIntToScalar(0), SkIntToScalar(end_point));
return SkGradientShader::CreateLinear(
grad_points, grad_colors, NULL, 2, SkShader::kRepeat_TileMode);
}
bool BitmapsAreEqual(const SkBitmap& bitmap1, const SkBitmap& bitmap2) {
void* addr1 = NULL;
void* addr2 = NULL;
size_t size1 = 0;
size_t size2 = 0;
bitmap1.lockPixels();
addr1 = bitmap1.getAddr32(0, 0);
size1 = bitmap1.getSize();
bitmap1.unlockPixels();
bitmap2.lockPixels();
addr2 = bitmap2.getAddr32(0, 0);
size2 = bitmap2.getSize();
bitmap2.unlockPixels();
return (size1 == size2) && (0 == memcmp(addr1, addr2, bitmap1.getSize()));
}
string16 RemoveAcceleratorChar(const string16& s,
char16 accelerator_char,
int *accelerated_char_pos,
int *accelerated_char_span) {
bool escaped = false;
int last_char_pos = -1;
int last_char_span = 0;
base::i18n::UTF16CharIterator chars(&s);
string16 accelerator_removed;
accelerator_removed.reserve(s.size());
while (!chars.end()) {
int32 c = chars.get();
int array_pos = chars.array_pos();
chars.Advance();
if (c != accelerator_char || escaped) {
int span = chars.array_pos() - array_pos;
if (escaped && c != accelerator_char) {
last_char_pos = accelerator_removed.size();
last_char_span = span;
}
for (int i = 0; i < span; i++)
accelerator_removed.push_back(s[array_pos + i]);
escaped = false;
} else {
escaped = true;
}
}
if (accelerated_char_pos)
*accelerated_char_pos = last_char_pos;
if (accelerated_char_span)
*accelerated_char_span = last_char_span;
return accelerator_removed;
}
} // namespace gfx
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