cc: Added inline to Tile::IsReadyToDraw
[chromium-blink-merge.git] / ppapi / cpp / dev / zoom_dev.h
blobb63c0195da7717e5a1d861519b620f31b5643a6a
1 // Copyright (c) 2010 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.
5 #ifndef PPAPI_CPP_DEV_ZOOM_DEV_H_
6 #define PPAPI_CPP_DEV_ZOOM_DEV_H_
8 #include <string>
10 #include "ppapi/c/dev/ppp_zoom_dev.h"
11 #include "ppapi/cpp/instance_handle.h"
13 namespace pp {
15 class Instance;
17 // This class allows you to associate the PPP_Zoom_Dev and PPB_Zoom_Dev C-based
18 // interfaces with an object. It associates itself with the given instance, and
19 // registers as the global handler for handling the PPP_Zoom_Dev interface that
20 // the browser calls.
22 // You would typically use this either via inheritance on your instance:
23 // class MyInstance : public pp::Instance, public pp::Zoom_Dev {
24 // class MyInstance() : pp::Zoom_Dev(this) {
25 // }
26 // ...
27 // };
29 // or by composition:
30 // class MyZoom : public pp::Zoom_Dev {
31 // ...
32 // };
34 // class MyInstance : public pp::Instance {
35 // MyInstance() : zoom_(this) {
36 // }
38 // MyZoom zoom_;
39 // };
40 class Zoom_Dev {
41 public:
42 explicit Zoom_Dev(Instance* instance);
43 virtual ~Zoom_Dev();
45 // PPP_Zoom_Dev functions exposed as virtual functions for you to
46 // override.
47 virtual void Zoom(double factor, bool text_only) = 0;
49 // PPB_Zoom_Def functions for you to call to report new zoom factor.
50 void ZoomChanged(double factor);
51 void ZoomLimitsChanged(double minimum_factor, double maximium_factor);
53 private:
54 InstanceHandle associated_instance_;
57 } // namespace pp
59 #endif // PPAPI_CPP_DEV_ZOOM_DEV_H_