Index: ui/aura_shell/app_list/drop_shadow_label.cc |
=================================================================== |
--- ui/aura_shell/app_list/drop_shadow_label.cc (revision 115517) |
+++ ui/aura_shell/app_list/drop_shadow_label.cc (working copy) |
@@ -1,118 +0,0 @@ |
-// 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/aura_shell/app_list/drop_shadow_label.h" |
- |
-#include "base/utf_string_conversions.h" |
-#include "third_party/skia/include/effects/SkGradientShader.h" |
-#include "ui/gfx/canvas_skia.h" |
-#include "ui/gfx/color_utils.h" |
-#include "ui/gfx/skbitmap_operations.h" |
- |
-using views::Label; |
- |
-namespace aura_shell { |
- |
-static const int kDefaultDropShadowSize = 2; |
- |
-DropShadowLabel::DropShadowLabel() : drop_shadow_size_(kDefaultDropShadowSize) { |
-} |
- |
-void DropShadowLabel::SetDropShadowSize(int drop_shadow_size) { |
- if (drop_shadow_size != drop_shadow_size_) { |
- drop_shadow_size_ = drop_shadow_size; |
- invalidate_text_size(); |
- SchedulePaint(); |
- } |
-} |
- |
-void DropShadowLabel::PaintText(gfx::Canvas* canvas, |
- const string16& text, |
- const gfx::Rect& text_bounds, |
- int flags) { |
- SkColor text_color = enabled() ? enabled_color() : disabled_color(); |
- if (drop_shadow_size_ > 0) { |
- // To properly render shadow with elliding fade effect, text and shadow |
- // is rendered to this canvas first with elliding disable so that underlying |
- // code would not mix shadow color into text area because of elliding fade. |
- // When that is done and if we need elliding fade, an alpha mask is applied |
- // when transfering contents on this canvas to target canvas. |
- gfx::Size canvas_size(text_bounds.width() + drop_shadow_size_, |
- text_bounds.height() + drop_shadow_size_); |
- gfx::CanvasSkia text_canvas(canvas_size, false); |
- |
- const double kShadowOpacity = 0.2; |
- const SkColor shadow_color = |
- SkColorSetA(SK_ColorBLACK, kShadowOpacity * SkColorGetA(text_color)); |
- gfx::Size text_size = GetTextSize(); |
- for (int i = 0; i < drop_shadow_size_; i++) { |
- text_canvas.DrawStringInt(text, font(), shadow_color, i, 0, |
- text_size.width(), text_size.height(), |
- flags | gfx::Canvas::NO_ELLIPSIS); |
- text_canvas.DrawStringInt(text, font(), shadow_color, i, i, |
- text_size.width(), text_size.height(), |
- flags | gfx::Canvas::NO_ELLIPSIS); |
- text_canvas.DrawStringInt(text, font(), shadow_color, 0, i, |
- text_size.width(), text_size.height(), |
- flags | gfx::Canvas::NO_ELLIPSIS); |
- } |
- text_canvas.DrawStringInt(text, font(), text_color, 0, 0, |
- text_size.width(), text_size.height(), |
- flags | gfx::Canvas::NO_ELLIPSIS); |
- |
- const SkBitmap& text_bitmap = const_cast<SkBitmap&>( |
- skia::GetTopDevice(*text_canvas.sk_canvas())->accessBitmap(false)); |
- |
- if (text_size.width() > text_bounds.width() && |
- !(flags & gfx::Canvas::NO_ELLIPSIS)) { |
- // Apply an gradient alpha mask for elliding fade effect. |
- const double kFadeWidthFactor = 1.5; |
- int fade_width = std::min(text_size.width() / 2, |
- static_cast<int>(text_size.height() * kFadeWidthFactor)); |
- |
- const SkColor kColors[] = { SK_ColorWHITE, 0 }; |
- const SkScalar kPoints[] = { SkIntToScalar(0), SkIntToScalar(1) }; |
- SkPoint p[2]; |
- p[0].set(SkIntToScalar(text_bounds.width() - fade_width), |
- SkIntToScalar(0)); |
- p[1].set(SkIntToScalar(text_bounds.width()), |
- SkIntToScalar(0)); |
- SkShader* s = SkGradientShader::CreateLinear( |
- p, kColors, kPoints, 2, SkShader::kClamp_TileMode, NULL); |
- |
- SkPaint paint; |
- paint.setShader(s)->unref(); |
- |
- gfx::CanvasSkia alpha_canvas(canvas_size, false); |
- alpha_canvas.DrawRect(gfx::Rect(canvas_size), paint); |
- |
- const SkBitmap& alpha_bitmap = const_cast<SkBitmap&>( |
- skia::GetTopDevice(*alpha_canvas.sk_canvas())->accessBitmap(false)); |
- SkBitmap blended = SkBitmapOperations::CreateMaskedBitmap(text_bitmap, |
- alpha_bitmap); |
- canvas->DrawBitmapInt(blended, text_bounds.x(), text_bounds.y()); |
- } else { |
- canvas->DrawBitmapInt(text_bitmap, text_bounds.x(), text_bounds.y()); |
- } |
- } else { |
- canvas->DrawStringInt(text, font(), text_color, text_bounds.x(), |
- text_bounds.y(), text_bounds.width(), text_bounds.height(), flags); |
- } |
- |
- if (HasFocus() || paint_as_focused()) { |
- gfx::Rect focus_bounds = text_bounds; |
- focus_bounds.Inset(-Label::kFocusBorderPadding, |
- -Label::kFocusBorderPadding); |
- canvas->DrawFocusRect(focus_bounds); |
- } |
-} |
- |
-gfx::Size DropShadowLabel::GetTextSize() const { |
- gfx::Size text_size = Label::GetTextSize(); |
- text_size.SetSize(text_size.width() + drop_shadow_size_, |
- text_size.height() + drop_shadow_size_); |
- return text_size; |
-} |
- |
-} // namespace aura_shell |