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authortfarina@chromium.org <tfarina@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2012-03-17 18:33:36 +0000
committertfarina@chromium.org <tfarina@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2012-03-17 18:33:36 +0000
commit29b8d7edef88b2b9319b8698d3f8aa6280d340e2 (patch)
treeb65d744f69f6eeb354593d91a01326271f9cff22 /ui/gfx/canvas_skia.cc
parenta0bd3fbc565acf25bfb77e6240d89ab4d24c5399 (diff)
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ui/gfx: Fix the file names of "canvas_skia_*" to say just "canvas_platform".
BUG=116572 R=asvitkine@chromium.org TBR=sky@chromium.org Review URL: https://chromiumcodereview.appspot.com/9719018 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@127369 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'ui/gfx/canvas_skia.cc')
-rw-r--r--ui/gfx/canvas_skia.cc378
1 files changed, 0 insertions, 378 deletions
diff --git a/ui/gfx/canvas_skia.cc b/ui/gfx/canvas_skia.cc
deleted file mode 100644
index 68087ba..0000000
--- a/ui/gfx/canvas_skia.cc
+++ /dev/null
@@ -1,378 +0,0 @@
-// Copyright (c) 2012 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/canvas.h"
-
-#include <limits>
-
-#include "base/i18n/rtl.h"
-#include "base/logging.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "third_party/skia/include/effects/SkGradientShader.h"
-#include "ui/gfx/brush.h"
-#include "ui/gfx/canvas.h"
-#include "ui/gfx/font.h"
-#include "ui/gfx/rect.h"
-#include "ui/gfx/skia_util.h"
-#include "ui/gfx/transform.h"
-
-#if defined(OS_WIN)
-#include "ui/gfx/canvas_skia_paint.h"
-#endif
-
-namespace {
-
-// A platform wrapper for a Skia shader that makes sure the underlying
-// SkShader object is unref'ed when this object is destroyed.
-class SkiaShader : public gfx::Brush {
- public:
- explicit SkiaShader(SkShader* shader) : shader_(shader) {
- }
- virtual ~SkiaShader() {
- shader_->unref();
- }
-
- // Accessor for shader, so it can be associated with a SkPaint.
- SkShader* shader() const { return shader_; }
-
- private:
- SkShader* shader_;
-
- DISALLOW_COPY_AND_ASSIGN(SkiaShader);
-};
-
-
-} // namespace
-
-namespace gfx {
-
-Canvas::Canvas(const gfx::Size& size, bool is_opaque)
- : owned_canvas_(new skia::PlatformCanvas(size.width(), size.height(),
- is_opaque)),
- canvas_(owned_canvas_.get()) {
-#if defined(OS_WIN) || defined(OS_MACOSX)
- // skia::PlatformCanvas instances are initialized to 0 by Cairo on Linux, but
- // uninitialized on Win and Mac.
- if (!is_opaque)
- owned_canvas_->clear(SkColorSetARGB(0, 0, 0, 0));
-#endif
-}
-
-Canvas::Canvas(const SkBitmap& bitmap, bool is_opaque)
- : owned_canvas_(new skia::PlatformCanvas(bitmap.width(), bitmap.height(),
- is_opaque)),
- canvas_(owned_canvas_.get()) {
- DrawBitmapInt(bitmap, 0, 0);
-}
-
-Canvas::Canvas()
- : owned_canvas_(new skia::PlatformCanvas()),
- canvas_(owned_canvas_.get()) {
-}
-
-Canvas::Canvas(SkCanvas* canvas)
- : owned_canvas_(),
- canvas_(canvas) {
- DCHECK(canvas);
-}
-
-Canvas::~Canvas() {
-}
-
-// static
-int Canvas::GetStringWidth(const string16& text, const gfx::Font& font) {
- int width = 0, height = 0;
- Canvas::SizeStringInt(text, font, &width, &height, NO_ELLIPSIS);
- return width;
-}
-
-// static
-int Canvas::DefaultCanvasTextAlignment() {
- return base::i18n::IsRTL() ? TEXT_ALIGN_RIGHT : TEXT_ALIGN_LEFT;
-}
-
-SkBitmap Canvas::ExtractBitmap() const {
- const SkBitmap& device_bitmap = canvas_->getDevice()->accessBitmap(false);
-
- // Make a bitmap to return, and a canvas to draw into it. We don't just want
- // to call extractSubset or the copy constructor, since we want an actual copy
- // of the bitmap.
- SkBitmap result;
- device_bitmap.copyTo(&result, SkBitmap::kARGB_8888_Config);
- return result;
-}
-
-void Canvas::DrawDashedRect(const gfx::Rect& rect, SkColor color) {
- // Create a 2D bitmap containing alternating on/off pixels - we do this
- // so that you never get two pixels of the same color around the edges
- // of the focus rect (this may mean that opposing edges of the rect may
- // have a dot pattern out of phase to each other).
- static SkColor last_color;
- static SkBitmap* dots = NULL;
- if (!dots || last_color != color) {
- int col_pixels = 32;
- int row_pixels = 32;
-
- delete dots;
- last_color = color;
- dots = new SkBitmap;
- dots->setConfig(SkBitmap::kARGB_8888_Config, col_pixels, row_pixels);
- dots->allocPixels();
- dots->eraseARGB(0, 0, 0, 0);
-
- uint32_t* dot = dots->getAddr32(0, 0);
- for (int i = 0; i < row_pixels; i++) {
- for (int u = 0; u < col_pixels; u++) {
- if ((u % 2 + i % 2) % 2 != 0) {
- dot[i * row_pixels + u] = color;
- }
- }
- }
- }
-
- // Make a shader for the bitmap with an origin of the box we'll draw. This
- // shader is refcounted and will have an initial refcount of 1.
- SkShader* shader = SkShader::CreateBitmapShader(
- *dots, SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode);
- // Assign the shader to the paint & release our reference. The paint will
- // now own the shader and the shader will be destroyed when the paint goes
- // out of scope.
- SkPaint paint;
- paint.setShader(shader);
- shader->unref();
-
- DrawRect(gfx::Rect(rect.x(), rect.y(), rect.width(), 1), paint);
- DrawRect(gfx::Rect(rect.x(), rect.y() + rect.height() - 1, rect.width(), 1),
- paint);
- DrawRect(gfx::Rect(rect.x(), rect.y(), 1, rect.height()), paint);
- DrawRect(gfx::Rect(rect.x() + rect.width() - 1, rect.y(), 1, rect.height()),
- paint);
-}
-
-void Canvas::Save() {
- canvas_->save();
-}
-
-void Canvas::SaveLayerAlpha(uint8 alpha) {
- canvas_->saveLayerAlpha(NULL, alpha);
-}
-
-
-void Canvas::SaveLayerAlpha(uint8 alpha, const gfx::Rect& layer_bounds) {
- SkRect bounds(gfx::RectToSkRect(layer_bounds));
- canvas_->saveLayerAlpha(&bounds, alpha);
-}
-
-void Canvas::Restore() {
- canvas_->restore();
-}
-
-bool Canvas::ClipRect(const gfx::Rect& rect) {
- return canvas_->clipRect(gfx::RectToSkRect(rect));
-}
-
-void Canvas::Translate(const gfx::Point& point) {
- canvas_->translate(SkIntToScalar(point.x()), SkIntToScalar(point.y()));
-}
-
-void Canvas::Scale(int x_scale, int y_scale) {
- canvas_->scale(SkIntToScalar(x_scale), SkIntToScalar(y_scale));
-}
-
-void Canvas::FillRect(const gfx::Rect& rect, const SkColor& color) {
- FillRect(rect, color, SkXfermode::kSrcOver_Mode);
-}
-
-void Canvas::FillRect(const gfx::Rect& rect,
- const SkColor& color,
- SkXfermode::Mode mode) {
- SkPaint paint;
- paint.setColor(color);
- paint.setStyle(SkPaint::kFill_Style);
- paint.setXfermodeMode(mode);
- DrawRect(rect, paint);
-}
-
-void Canvas::FillRect(const gfx::Rect& rect, const gfx::Brush* brush) {
- const SkiaShader* shader = static_cast<const SkiaShader*>(brush);
- SkPaint paint;
- paint.setShader(shader->shader());
- // TODO(beng): set shader transform to match canvas transform.
- DrawRect(rect, paint);
-}
-
-void Canvas::DrawRect(const gfx::Rect& rect, const SkColor& color) {
- DrawRect(rect, color, SkXfermode::kSrcOver_Mode);
-}
-
-void Canvas::DrawRect(const gfx::Rect& rect,
- const SkColor& color,
- SkXfermode::Mode mode) {
- SkPaint paint;
- paint.setColor(color);
- paint.setStyle(SkPaint::kStroke_Style);
- // Set a stroke width of 0, which will put us down the stroke rect path. If
- // we set a stroke width of 1, for example, this will internally create a
- // path and fill it, which causes problems near the edge of the canvas.
- paint.setStrokeWidth(SkIntToScalar(0));
- paint.setXfermodeMode(mode);
-
- DrawRect(rect, paint);
-}
-
-void Canvas::DrawRect(const gfx::Rect& rect, const SkPaint& paint) {
- canvas_->drawIRect(RectToSkIRect(rect), paint);
-}
-
-void Canvas::DrawLine(const gfx::Point& p1,
- const gfx::Point& p2,
- const SkColor& color) {
- SkPaint paint;
- paint.setColor(color);
- paint.setStrokeWidth(SkIntToScalar(1));
- canvas_->drawLine(SkIntToScalar(p1.x()), SkIntToScalar(p1.y()),
- SkIntToScalar(p2.x()), SkIntToScalar(p2.y()), paint);
-}
-
-void Canvas::DrawFocusRect(const gfx::Rect& rect) {
- DrawDashedRect(rect, SK_ColorGRAY);
-}
-
-void Canvas::DrawBitmapInt(const SkBitmap& bitmap, int x, int y) {
- canvas_->drawBitmap(bitmap, SkIntToScalar(x), SkIntToScalar(y));
-}
-
-void Canvas::DrawBitmapInt(const SkBitmap& bitmap,
- int x, int y,
- const SkPaint& paint) {
- canvas_->drawBitmap(bitmap, SkIntToScalar(x), SkIntToScalar(y), &paint);
-}
-
-void Canvas::DrawBitmapInt(const SkBitmap& bitmap,
- int src_x, int src_y, int src_w, int src_h,
- int dest_x, int dest_y, int dest_w, int dest_h,
- bool filter) {
- SkPaint p;
- DrawBitmapInt(bitmap, src_x, src_y, src_w, src_h, dest_x, dest_y,
- dest_w, dest_h, filter, p);
-}
-
-void Canvas::DrawBitmapInt(const SkBitmap& bitmap,
- int src_x, int src_y, int src_w, int src_h,
- int dest_x, int dest_y, int dest_w, int dest_h,
- bool filter,
- const SkPaint& paint) {
- DLOG_ASSERT(src_x + src_w < std::numeric_limits<int16_t>::max() &&
- src_y + src_h < std::numeric_limits<int16_t>::max());
- if (src_w <= 0 || src_h <= 0) {
- NOTREACHED() << "Attempting to draw bitmap from an empty rect!";
- return;
- }
-
- if (!IntersectsClipRectInt(dest_x, dest_y, dest_w, dest_h))
- return;
-
- SkRect dest_rect = { SkIntToScalar(dest_x),
- SkIntToScalar(dest_y),
- SkIntToScalar(dest_x + dest_w),
- SkIntToScalar(dest_y + dest_h) };
-
- if (src_w == dest_w && src_h == dest_h) {
- // Workaround for apparent bug in Skia that causes image to occasionally
- // shift.
- SkIRect src_rect = { src_x, src_y, src_x + src_w, src_y + src_h };
- canvas_->drawBitmapRect(bitmap, &src_rect, dest_rect, &paint);
- return;
- }
-
- // Make a bitmap shader that contains the bitmap we want to draw. This is
- // basically what SkCanvas.drawBitmap does internally, but it gives us
- // more control over quality and will use the mipmap in the source image if
- // it has one, whereas drawBitmap won't.
- SkShader* shader = SkShader::CreateBitmapShader(bitmap,
- SkShader::kRepeat_TileMode,
- SkShader::kRepeat_TileMode);
- SkMatrix shader_scale;
- shader_scale.setScale(SkFloatToScalar(static_cast<float>(dest_w) / src_w),
- SkFloatToScalar(static_cast<float>(dest_h) / src_h));
- shader_scale.preTranslate(SkIntToScalar(-src_x), SkIntToScalar(-src_y));
- shader_scale.postTranslate(SkIntToScalar(dest_x), SkIntToScalar(dest_y));
- shader->setLocalMatrix(shader_scale);
-
- // Set up our paint to use the shader & release our reference (now just owned
- // by the paint).
- SkPaint p(paint);
- p.setFilterBitmap(filter);
- p.setShader(shader);
- shader->unref();
-
- // The rect will be filled by the bitmap.
- canvas_->drawRect(dest_rect, p);
-}
-
-void Canvas::DrawStringInt(const string16& text,
- const gfx::Font& font,
- const SkColor& color,
- int x, int y, int w, int h) {
- DrawStringInt(text, font, color, x, y, w, h, DefaultCanvasTextAlignment());
-}
-
-void Canvas::DrawStringInt(const string16& text,
- const gfx::Font& font,
- const SkColor& color,
- const gfx::Rect& display_rect) {
- DrawStringInt(text, font, color, display_rect.x(), display_rect.y(),
- display_rect.width(), display_rect.height());
-}
-
-void Canvas::TileImageInt(const SkBitmap& bitmap,
- int x, int y, int w, int h) {
- TileImageInt(bitmap, 0, 0, x, y, w, h);
-}
-
-void Canvas::TileImageInt(const SkBitmap& bitmap,
- int src_x, int src_y,
- int dest_x, int dest_y, int w, int h) {
- if (!IntersectsClipRectInt(dest_x, dest_y, w, h))
- return;
-
- SkPaint paint;
-
- SkShader* shader = SkShader::CreateBitmapShader(bitmap,
- SkShader::kRepeat_TileMode,
- SkShader::kRepeat_TileMode);
- paint.setShader(shader);
- paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
-
- // CreateBitmapShader returns a Shader with a reference count of one, we
- // need to unref after paint takes ownership of the shader.
- shader->unref();
- canvas_->save();
- canvas_->translate(SkIntToScalar(dest_x - src_x),
- SkIntToScalar(dest_y - src_y));
- ClipRect(gfx::Rect(src_x, src_y, w, h));
- canvas_->drawPaint(paint);
- canvas_->restore();
-}
-
-gfx::NativeDrawingContext Canvas::BeginPlatformPaint() {
- return skia::BeginPlatformPaint(canvas_);
-}
-
-void Canvas::EndPlatformPaint() {
- skia::EndPlatformPaint(canvas_);
-}
-
-void Canvas::Transform(const ui::Transform& transform) {
- canvas_->concat(transform.matrix());
-}
-
-bool Canvas::IntersectsClipRectInt(int x, int y, int w, int h) {
- SkRect clip;
- return canvas_->getClipBounds(&clip) &&
- clip.intersect(SkIntToScalar(x), SkIntToScalar(y), SkIntToScalar(x + w),
- SkIntToScalar(y + h));
-}
-
-} // namespace gfx