1 files changed, 99 insertions, 0 deletions
diff --git a/chrome/browser/views/tabs/tab_overview_container.cc b/chrome/browser/views/tabs/tab_overview_container.cc
new file mode 100644
index 0000000..d565261
--- /dev/null
+++ b/chrome/browser/views/tabs/tab_overview_container.cc
@@ -0,0 +1,99 @@
+// Copyright (c) 2009 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/views/tabs/tab_overview_container.h"
+
+#include <gtk/gtk.h>
+
+#include "app/gfx/canvas.h"
+#include "app/gfx/path.h"
+#include "chrome/browser/views/tabs/tab_overview_grid.h"
+#include "third_party/skia/include/effects/SkGradientShader.h"
+#include "views/widget/widget_gtk.h"
+
+// Padding between the edges of us and the grid.
+static const int kVerticalPadding = 43;
+static const int kHorizontalPadding = 30;
+
+// Height of the arrow.
+static const int kArrowHeight = 28;
+
+// Inset of the slight rounding on the corners.
+static const int kEdgeInset = 5;
+
+TabOverviewContainer::TabOverviewContainer() {
+}
+
+TabOverviewContainer::~TabOverviewContainer() {
+}
+
+void TabOverviewContainer::SetMaxSize(const gfx::Size& max_size) {
+  GetTabOverviewGrid()->set_max_size(
+      gfx::Size(max_size.width() - kHorizontalPadding * 2,
+                max_size.height() - kVerticalPadding * 2 - kArrowHeight));
+}
+
+void TabOverviewContainer::UpdateWidgetShape(int width, int height) {
+  int bottom_y = height - kArrowHeight;
+  int right_edge = width - 1;
+  int center = width / 2;
+  // The points in alternating x,y pairs.
+  int points[] = {
+      kEdgeInset, 0,
+      right_edge - kEdgeInset, 0,
+      right_edge, kEdgeInset,
+      right_edge, bottom_y - kEdgeInset - 1,
+      right_edge - kEdgeInset, bottom_y - 1,
+      center + kArrowHeight / 2, bottom_y - 1,
+      center, bottom_y - 1 +  kArrowHeight,
+      center - kArrowHeight / 2, bottom_y - 1,
+      kEdgeInset, bottom_y - 1,
+      0, bottom_y - 1 - kEdgeInset,
+      0, kEdgeInset,
+  };
+  gfx::Path path;
+  path.moveTo(SkIntToScalar(points[0]), SkIntToScalar(points[1]));
+  for (size_t i = 2; i < arraysize(points); i += 2)
+    path.lineTo(SkIntToScalar(points[i]), SkIntToScalar(points[i + 1]));
+
+  GetWidget()->SetShape(path);
+}
+
+gfx::Size TabOverviewContainer::GetPreferredSize() {
+  gfx::Size tab_overview_pref = GetTabOverviewGrid()->GetPreferredSize();
+  return gfx::Size(kHorizontalPadding * 2 + tab_overview_pref.width(),
+                   kVerticalPadding * 2 + tab_overview_pref.height() +
+                   kArrowHeight);
+}
+
+void TabOverviewContainer::Layout() {
+  GetTabOverviewGrid()->SetBounds(kHorizontalPadding, kVerticalPadding,
+                                  width() - kHorizontalPadding * 2,
+                                  height() - kVerticalPadding * 2 -
+                                  kArrowHeight);
+}
+
+void TabOverviewContainer::Paint(gfx::Canvas* canvas) {
+  SkPoint points[] = { { SkIntToScalar(0), SkIntToScalar(0) },
+                       { SkIntToScalar(0), SkIntToScalar(height()) } };
+  SkColor colors[] = { SkColorSetARGB(242, 255, 255, 255),
+                       SkColorSetARGB(212, 255, 255, 255), };
+  SkShader* shader = SkGradientShader::CreateLinear(
+      points, colors, NULL, 2, SkShader::kRepeat_TileMode);
+  SkPaint paint;
+  paint.setShader(shader);
+  shader = NULL;
+  paint.setStyle(SkPaint::kFill_Style);
+  paint.setPorterDuffXfermode(SkPorterDuff::kSrcOver_Mode);
+  canvas->drawPaint(paint);
+}
+
+void TabOverviewContainer::DidChangeBounds(const gfx::Rect& previous,
+                                           const gfx::Rect& current) {
+  Layout();
+}
+
+TabOverviewGrid* TabOverviewContainer::GetTabOverviewGrid() {
+  return static_cast<TabOverviewGrid*>(GetChildViewAt(0));
+}