Uses and returns the fractional width in text eliding

chrome/browser/ui/autofill/autofill_popup_controller_impl.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_POPUP_CONTROLLER_IMPL_H_
 #define CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_POPUP_CONTROLLER_IMPL_H_
 
 #include "base/gtest_prod_util.h"
 #include "base/i18n/rtl.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 73 matching lines @@
   // AutofillPopupController implementation.
   virtual void UpdateBoundsAndRedrawPopup() OVERRIDE;
   virtual void MouseHovered(int x, int y) OVERRIDE;
   virtual void MouseClicked(int x, int y) OVERRIDE;
   virtual void MouseExitedPopup() OVERRIDE;
   virtual bool ShouldRepostEvent(const ui::MouseEvent& event) OVERRIDE;
   virtual void AcceptSuggestion(size_t index) OVERRIDE;
   virtual int GetIconResourceID(const string16& resource_name) OVERRIDE;
   virtual bool CanDelete(size_t index) const OVERRIDE;
   virtual bool IsWarning(size_t index) const OVERRIDE;
-  virtual gfx::Rect GetRowBounds(size_t index) OVERRIDE;
-  virtual void SetPopupBounds(const gfx::Rect& bounds) OVERRIDE;
-  virtual const gfx::Rect& popup_bounds() const OVERRIDE;
+  virtual gfx::RectF GetRowBounds(size_t index) OVERRIDE;
+  virtual void SetPopupBounds(const gfx::RectF& bounds) OVERRIDE;
+  virtual const gfx::RectF& popup_bounds() const OVERRIDE;
   virtual gfx::NativeView container_view() const OVERRIDE;
   virtual const gfx::RectF& element_bounds() const OVERRIDE;
   virtual bool IsRTL() const OVERRIDE;
 
   virtual const std::vector<string16>& names() const OVERRIDE;
   virtual const std::vector<string16>& subtexts() const OVERRIDE;
   virtual const std::vector<string16>& icons() const OVERRIDE;
   virtual const std::vector<int>& identifiers() const OVERRIDE;
 #if !defined(OS_ANDROID)
   virtual const gfx::Font& GetNameFontForRow(size_t index) const OVERRIDE;
@@ skipping 38 matching lines @@
 
   AutofillPopupView* view() { return view_; }
 
   // |view_| pass throughs (virtual for testing).
   virtual void ShowView();
   virtual void InvalidateRow(size_t row);
 
   // Protected so tests can access.
 #if !defined(OS_ANDROID)
   // Calculates the desired width of the popup based on its contents.
-  int GetDesiredPopupWidth() const;
+  float GetDesiredPopupWidth() const;
 
   // Calculates the desired height of the popup based on its contents.
   int GetDesiredPopupHeight() const;
 
   // Calculate the width of the row, excluding all the text. This provides
   // the size of the row that won't be reducible (since all the text can be
   // elided if there isn't enough space).
   int RowWidthWithoutText(int row) const;
 #endif
 
@@ skipping 10 matching lines @@
   // to prevent it from going off the screen.
   void UpdatePopupBounds();
 #endif
 
   // A helper function to get the display closest to the given point (virtual
   // for testing).
   virtual gfx::Display GetDisplayNearestPoint(const gfx::Point& point) const;
 
   // Calculates the width of the popup and the x position of it. These values
   // will stay on the screen.
-  std::pair<int, int> CalculatePopupXAndWidth(
+  std::pair<float, float> CalculatePopupXAndWidth(
       const gfx::Display& left_display,
       const gfx::Display& right_display,
-      int popup_required_width) const;
+      float popup_required_width) const;
 
   // Calculates the height of the popup and the y position of it. These values
   // will stay on the screen.
   std::pair<int, int> CalculatePopupYAndHeight(
       const gfx::Display& top_display,
       const gfx::Display& bottom_display,
       int popup_required_height) const;
 
   AutofillPopupView* view_;  // Weak reference.
   base::WeakPtr<AutofillPopupDelegate> delegate_;
   gfx::NativeView container_view_;  // Weak reference.
 
   // The bounds of the text element that is the focus of the Autofill.
   // These coordinates are in screen space.
   const gfx::RectF element_bounds_;
 
   // The bounds of the Autofill popup.
-  gfx::Rect popup_bounds_;
+  gfx::RectF popup_bounds_;
 
   // The text direction of the popup.
   base::i18n::TextDirection text_direction_;
 
   // The current Autofill query values.
   std::vector<string16> names_;
   std::vector<string16> subtexts_;
   std::vector<string16> icons_;
   std::vector<int> identifiers_;
 
@@ skipping 16 matching lines @@
   bool hide_on_outside_click_;
 
   base::WeakPtrFactory<AutofillPopupControllerImpl> weak_ptr_factory_;
 
   content::RenderWidgetHost::KeyPressEventCallback key_press_event_callback_;
 };
 
 }  // namespace autofill
 
 #endif  // CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_POPUP_CONTROLLER_IMPL_H_