1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "ui/app_list/views/progress_bar_view.h" 6 7 #include <algorithm> 8 9 #include "grit/ui_resources.h" 10 #include "ui/base/resource/resource_bundle.h" 11 #include "ui/gfx/image/image_skia.h" 12 #include "ui/gfx/insets.h" 13 #include "ui/views/painter.h" 14 15 namespace app_list { 16 17 namespace { 18 19 // Image assets for the bar part. 20 const int kProgressBarImages[] = { 21 IDR_APP_LIST_ITEM_PROGRESS_LEFT, 22 IDR_APP_LIST_ITEM_PROGRESS_CENTER, 23 IDR_APP_LIST_ITEM_PROGRESS_RIGHT 24 }; 25 26 } // namespace 27 28 ProgressBarView::ProgressBarView() 29 : background_painter_(views::Painter::CreateImagePainter( 30 *ResourceBundle::GetSharedInstance().GetImageSkiaNamed( 31 IDR_APP_LIST_ITEM_PROGRESS_BACKGROUND), 32 gfx::Insets(2, 2, 2, 2))), 33 bar_painter_(new views::HorizontalPainter(kProgressBarImages)) {} 34 35 ProgressBarView::~ProgressBarView() {} 36 37 gfx::Size ProgressBarView::GetPreferredSize() const { 38 return background_painter_->GetMinimumSize(); 39 } 40 41 void ProgressBarView::OnPaint(gfx::Canvas* canvas) { 42 gfx::Size paint_size = size(); 43 44 const gfx::Size min_size(background_painter_->GetMinimumSize()); 45 if (paint_size.width() < min_size.width() || 46 paint_size.height() < min_size.height()) { 47 return; 48 } 49 50 background_painter_->Paint(canvas, paint_size); 51 52 const int kBarEndWidth = 4; 53 const int bar_width = paint_size.width() - kBarEndWidth; 54 DCHECK_GE(bar_width, 0); 55 56 // Map normalized value in [0,1] to the pixel width in 57 // [kBarEndWidth, view_size.width()]. 58 paint_size.set_width(kBarEndWidth + bar_width * GetNormalizedValue()); 59 bar_painter_->Paint(canvas, paint_size); 60 } 61 62 } // namespace app_list 63
