Make views::Label and views::Link auto-color themselves to be readable over their background colo...

chrome/browser/chromeos/login/user_view.cc

 // 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 "chrome/browser/chromeos/login/user_view.h"
 
 #include <algorithm>
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/login/helper.h"
 #include "chrome/browser/chromeos/login/rounded_rect_painter.h"
 #include "chrome/browser/chromeos/view_ids.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources_standard.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/canvas_skia.h"
 #include "ui/gfx/gtk_util.h"
 #include "ui/gfx/rect.h"
 #include "views/background.h"
 #include "views/controls/button/text_button.h"
 #include "views/controls/image_view.h"
 #include "views/controls/label.h"
 #include "views/controls/link.h"
 #include "views/controls/link_listener.h"
-#include "views/painter.h"
 
 namespace {
 
-// Background color and corner radius of the login status label and
-// signout button.
+// Background color of the signout button.
 const SkColor kSignoutBackgroundColor = 0xFF007700;
 
 // Horiz/Vert insets for Signout view.
 const int kSignoutViewHorizontalInsets = 10;
 const int kSignoutViewVerticalInsets = 5;
 const int kMinControlHeight = 16;
 
 // 1x Border around image pod.
 const SkColor kImageBorderColor = 0xFFCCCCCC;
 
 // Padding between remove button and top right image corner.
 const int kRemoveButtonPadding = 3;
 
-// Draws green-ish background for signout view with
-// rounded corners at the bottom.
-class SignoutBackgroundPainter : public views::Painter {
-  virtual void Paint(int w, int h, gfx::Canvas* canvas) {
-    SkRect rect = {0, 0, w, h};
-    SkPath path;
-    path.addRect(rect);
-    SkPaint paint;
-    paint.setStyle(SkPaint::kFill_Style);
-    paint.setFlags(SkPaint::kAntiAlias_Flag);
-    paint.setColor(kSignoutBackgroundColor);
-    canvas->GetSkCanvas()->drawPath(path, paint);
-  }
-};
-
 }  // namespace
 
 namespace chromeos {
 
 using login::kBackgroundColor;
 using login::kTextColor;
 using login::kUserImageSize;
 
 // The view that shows the Sign out button below the user's image.
 class SignoutView : public views::View {
  public:
   explicit SignoutView(views::LinkListener* link_listener) {
-    ResourceBundle& rb = ResourceBundle::GetSharedInstance();
-    const gfx::Font& font = rb.GetFont(ResourceBundle::SmallFont);
+    set_background(
+        views::Background::CreateSolidBackground(kSignoutBackgroundColor));
 
     active_user_label_ = new views::Label(
         l10n_util::GetStringUTF16(IDS_SCREEN_LOCK_ACTIVE_USER));
+    const gfx::Font& font =
+        ResourceBundle::GetSharedInstance().GetFont(ResourceBundle::SmallFont);
     active_user_label_->SetFont(font);
-    active_user_label_->SetColor(kTextColor);
+    active_user_label_->SetBackgroundColor(background()->get_color());
+    active_user_label_->SetEnabledColor(kTextColor);
 
     signout_link_ = new views::Link(
         l10n_util::GetStringUTF16(IDS_SCREEN_LOCK_SIGN_OUT));
     signout_link_->set_listener(link_listener);
     signout_link_->SetFont(font);
-    signout_link_->SetColor(kTextColor);
     signout_link_->set_focusable(true);
-    signout_link_->SetHighlightedColor(kTextColor);
+    signout_link_->SetBackgroundColor(background()->get_color());
+    signout_link_->SetPressedColor(kTextColor);
     signout_link_->SetDisabledColor(kTextColor);
-    signout_link_->SetNormalColor(kTextColor);
+    signout_link_->SetEnabledColor(kTextColor);
     signout_link_->set_id(VIEW_ID_SCREEN_LOCKER_SIGNOUT_LINK);
 
     AddChildView(active_user_label_);
     AddChildView(signout_link_);
-
-    set_background(views::Background::CreateBackgroundPainter(
-        true, new SignoutBackgroundPainter()));
   }
 
   // views::View overrides.
   virtual void Layout() {
     gfx::Size label = active_user_label_->GetPreferredSize();
     gfx::Size button = signout_link_->GetPreferredSize();
     active_user_label_->SetBounds(
         kSignoutViewHorizontalInsets, (height() - label.height()) / 2,
         label.width(), label.height());
     signout_link_->SetBounds(
@@ skipping 60 matching lines @@
       SetIcon(SkBitmap());
       views::TextButton::SetText(text_);
 
       const SkColor kStrokeColor = SK_ColorWHITE;
       const SkColor kButtonColor = 0xFFE94949;
       const int kStrokeWidth = 1;
       const int kVerticalPadding = 4;
       const int kHorizontalPadding = 8;
       const int kCornerRadius = 4;
 
-      set_background(
-          CreateRoundedBackground(
-              kCornerRadius, kStrokeWidth, kButtonColor, kStrokeColor));
+      set_background(CreateRoundedBackground(kCornerRadius, kStrokeWidth,
+                                             kButtonColor, kStrokeColor));
 
-      set_border(
-          views::Border::CreateEmptyBorder(kVerticalPadding,
-                                           kHorizontalPadding,
-                                           kVerticalPadding,
-                                           kHorizontalPadding));
+      set_border(views::Border::CreateEmptyBorder(kVerticalPadding,
+          kHorizontalPadding, kVerticalPadding, kHorizontalPadding));
 
       UpdatePosition();
       was_first_click_ = true;
     } else {
       // On second click propagate to base class to fire ButtonPressed.
       views::TextButton::NotifyClick(event);
     }
   }
 
   virtual void SetText(const std::wstring& text) OVERRIDE {
@@ skipping 80 matching lines @@
   // UserView's layout never changes, so let's layout once here.
   image_view_->SetBounds(0, 0, kUserImageSize, kUserImageSize);
   AddChildView(image_view_);
 
   if (signout_view_) {
     signout_view_->SetBounds(0, kUserImageSize, kUserImageSize,
                              signout_view_->GetPreferredSize().height());
     AddChildView(signout_view_);
   }
 
-  ResourceBundle& rb = ResourceBundle::GetSharedInstance();
   remove_button_ = new RemoveButton(
       this,
-      *rb.GetBitmapNamed(IDR_CLOSE_BAR_H),
+      *ResourceBundle::GetSharedInstance().GetBitmapNamed(IDR_CLOSE_BAR_H),
       UTF16ToWide(l10n_util::GetStringUTF16(IDS_LOGIN_REMOVE)),
       gfx::Point(kUserImageSize - kRemoveButtonPadding, kRemoveButtonPadding));
   remove_button_->SetVisible(false);
   AddChildView(remove_button_);
 }
 
 void UserView::SetImage(const SkBitmap& image, const SkBitmap& image_hot) {
   int desired_size = std::min(image.width(), image.height());
   // Desired size is not preserved if it's greater than 75% of kUserImageSize.
   if (desired_size * 4 > 3 * kUserImageSize)
@@ skipping 35 matching lines @@
     delegate_->OnRemoveUser();
 }
 
 void UserView::OnLocaleChanged() {
   remove_button_->SetText(
       UTF16ToWide(l10n_util::GetStringUTF16(IDS_LOGIN_REMOVE)));
   delegate_->OnLocaleChanged();
 }
 
 }  // namespace chromeos