ui/base/cursor/image_cursors.h

   1 // Copyright 2014 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 #ifndef UI_BASE_CURSOR_IMAGE_CURSORS_H_
   6 #define UI_BASE_CURSOR_IMAGE_CURSORS_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/strings/string16.h"
  10 #include "ui/base/cursor/cursor.h"
  11 #include "ui/base/ui_base_export.h"
  12 #include "ui/gfx/display.h"
  13 #include "ui/gfx/native_widget_types.h"
  14
  15 namespace ui {
  16
  17 class CursorLoader;
  18
  19 // A utility class that provides cursors for NativeCursors for which we have
  20 // image resources.
  21 class UI_BASE_EXPORT ImageCursors {
  22  public:
  23   ImageCursors();
  24   ~ImageCursors();
  25
  26   // Returns the scale and rotation of the currently loaded cursor.
  27   float GetScale() const;
  28   gfx::Display::Rotation GetRotation() const;
  29
  30   // Sets the display the cursors are loaded for. |scale_factor| determines the
  31   // size of the image to load. Returns true if the cursor image is reloaded.
  32   bool SetDisplay(const gfx::Display& display, float scale_factor);
  33
  34   // Sets the type of the mouse cursor icon.
  35   void SetCursorSet(CursorSetType cursor_set);
  36
  37   // Sets the platform cursor based on the native type of |cursor|.
  38   void SetPlatformCursor(gfx::NativeCursor* cursor);
  39
  40  private:
  41   // Reloads the all loaded cursors in the cursor loader.
  42   void ReloadCursors();
  43
  44   scoped_ptr<CursorLoader> cursor_loader_;
  45   CursorSetType cursor_set_;
  46
  47   DISALLOW_COPY_AND_ASSIGN(ImageCursors);
  48 };
  49
  50 }  // namespace ui
  51
  52 #endif  // UI_BASE_CURSOR_IMAGE_CURSORS_H_