1ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen// Copyright (c) 2011 The Chromium Authors. All rights reserved. 2c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Use of this source code is governed by a BSD-style license that can be 3c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// found in the LICENSE file. 4c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 5c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/ntp_background_util.h" 6c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 7c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "base/logging.h" 8ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen#include "chrome/browser/themes/theme_service.h" 9c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "grit/theme_resources.h" 10c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "third_party/skia/include/core/SkBitmap.h" 1172a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen#include "ui/gfx/canvas.h" 1272a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen#include "ui/gfx/rect.h" 1372a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen#include "ui/gfx/skia_util.h" 14c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 15c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochnamespace { 16c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 17c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochvoid PaintThemeBackground( 18c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch gfx::Canvas* canvas, SkBitmap* ntp_background, int tiling, int alignment, 19c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch const gfx::Rect& area, int tab_contents_height) { 20c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch int x_pos = 0; 21c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch int y_pos = 0; 22c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch int width = area.width() + ntp_background->width(); 23c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch int height = area.height() + ntp_background->height(); 24c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 25ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen if (alignment & ThemeService::ALIGN_BOTTOM) 26c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch y_pos += area.height() + tab_contents_height - ntp_background->height(); 27c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 28ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen if (alignment & ThemeService::ALIGN_RIGHT) { 29c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch x_pos += area.width() - ntp_background->width(); 30ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen } else if (alignment & ThemeService::ALIGN_LEFT) { 31c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // no op 32c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } else { // ALIGN_CENTER 33c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch x_pos += area.width() / 2 - ntp_background->width() / 2; 34c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 35c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 36ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen if (tiling != ThemeService::REPEAT && 37ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen tiling != ThemeService::REPEAT_X) { 38c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch width = ntp_background->width(); 39c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } else if (x_pos > 0) { 40c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch x_pos = x_pos % ntp_background->width() - ntp_background->width(); 41c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 42c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 43ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen if (tiling != ThemeService::REPEAT && 44ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen tiling != ThemeService::REPEAT_Y) { 45c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch height = ntp_background->height(); 46c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } else if (y_pos > 0) { 47c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch y_pos = y_pos % ntp_background->height() - ntp_background->height(); 48c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 49c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 50c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch x_pos += area.x(); 51c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch y_pos += area.y(); 52c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 53c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch canvas->TileImageInt(*ntp_background, x_pos, y_pos, width, height); 54c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 55c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 56c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} // namespace 57c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 58c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// static 59c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochvoid NtpBackgroundUtil::PaintBackgroundDetachedMode( 6072a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen ui::ThemeProvider* tp, gfx::Canvas* canvas, const gfx::Rect& area, 61c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch int tab_contents_height) { 62c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Draw the background to match the new tab page. 63ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen canvas->FillRectInt(tp->GetColor(ThemeService::COLOR_NTP_BACKGROUND), 64c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch area.x(), area.y(), area.width(), area.height()); 65c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 66c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (tp->HasCustomImage(IDR_THEME_NTP_BACKGROUND)) { 67ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen int tiling = ThemeService::NO_REPEAT; 68ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen tp->GetDisplayProperty(ThemeService::NTP_BACKGROUND_TILING, 69c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch &tiling); 70c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch int alignment; 71ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen if (tp->GetDisplayProperty(ThemeService::NTP_BACKGROUND_ALIGNMENT, 72c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch &alignment)) { 73c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch SkBitmap* ntp_background = tp->GetBitmapNamed(IDR_THEME_NTP_BACKGROUND); 74c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 75c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch PaintThemeBackground( 76c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch canvas, ntp_background, tiling, alignment, area, tab_contents_height); 77c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 78c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 79c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 80