| // 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 "chrome/browser/ui/views/infobars/infobar_background.h" |
| |
| #include "chrome/browser/infobars/infobar.h" |
| #include "chrome/browser/ui/views/infobars/infobar_view.h" |
| #include "third_party/skia/include/effects/SkGradientShader.h" |
| #include "ui/gfx/canvas.h" |
| #include "ui/gfx/color_utils.h" |
| #include "ui/views/view.h" |
| |
| InfoBarBackground::InfoBarBackground(InfoBarDelegate::Type infobar_type) |
| : separator_color_(SK_ColorBLACK), |
| top_color_(GetInfoBarTopColor(infobar_type)), |
| bottom_color_(GetInfoBarBottomColor(infobar_type)) { |
| SetNativeControlColor( |
| color_utils::AlphaBlend(top_color_, bottom_color_, 128)); |
| } |
| |
| InfoBarBackground::~InfoBarBackground() { |
| } |
| |
| void InfoBarBackground::Paint(gfx::Canvas* canvas, views::View* view) const { |
| SkPoint gradient_points[2]; |
| gradient_points[0].iset(0, 0); |
| gradient_points[1].iset(0, view->height()); |
| SkColor gradient_colors[2] = { top_color_, bottom_color_ }; |
| skia::RefPtr<SkShader> gradient_shader = skia::AdoptRef( |
| SkGradientShader::CreateLinear(gradient_points, gradient_colors, NULL, 2, |
| SkShader::kClamp_TileMode)); |
| SkPaint paint; |
| paint.setStrokeWidth(SkIntToScalar(InfoBar::kSeparatorLineHeight)); |
| paint.setStyle(SkPaint::kFill_Style); |
| paint.setStrokeCap(SkPaint::kRound_Cap); |
| paint.setShader(gradient_shader.get()); |
| |
| InfoBarView* infobar = static_cast<InfoBarView*>(view); |
| SkCanvas* canvas_skia = canvas->sk_canvas(); |
| canvas_skia->drawPath(infobar->fill_path(), paint); |
| |
| paint.setShader(NULL); |
| paint.setColor(SkColorSetA(separator_color_, |
| SkColorGetA(gradient_colors[0]))); |
| paint.setStyle(SkPaint::kStroke_Style); |
| // Anti-alias the path so it doesn't look goofy when the edges are not at 45 |
| // degree angles, but don't anti-alias anything else, especially not the fill, |
| // lest we get weird color bleeding problems. |
| paint.setAntiAlias(true); |
| canvas_skia->drawPath(infobar->stroke_path(), paint); |
| paint.setAntiAlias(false); |
| |
| // Now draw the separator at the bottom. |
| canvas->FillRect(gfx::Rect(0, view->height() - InfoBar::kSeparatorLineHeight, |
| view->width(), InfoBar::kSeparatorLineHeight), |
| separator_color_); |
| } |