Merge XFA to PDFium master at 4dc95e7 on 10/28/2014
[pdfium.git] / xfa_test / pdf / thumbnail_control.h
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.
4
5 #ifndef PDF_THUMBNAIL_CONTROL_H_
6 #define PDF_THUMBNAIL_CONTROL_H_
7
8 #include <map>
9 #include <vector>
10
11 #include "pdf/control.h"
12 #include "pdf/pdf_engine.h"
13 #include "ppapi/cpp/input_event.h"
14
15 namespace chrome_pdf {
16
17 class NumberImageGenerator;
18
19 class ThumbnailControl : public Control {
20  public:
21   enum ThumbnailEventIds {
22     EVENT_ID_THUMBNAIL_SELECTED = 100,
23   };
24
25   explicit ThumbnailControl();
26   virtual ~ThumbnailControl();
27
28   // Sets current position of the thumnail control.
29   void SetPosition(int position, int total, bool invalidate);
30   void SlideIn();
31   void SlideOut();
32
33   virtual bool CreateThumbnailControl(
34       uint32 id, const pp::Rect& rc,
35       bool visible, Owner* owner, PDFEngine* engine,
36       NumberImageGenerator* number_image_generator);
37
38   // Control interface.
39   virtual void Show(bool visible, bool invalidate);
40   virtual void Paint(pp::ImageData* image_data, const pp::Rect& rc);
41   virtual bool HandleEvent(const pp::InputEvent& event);
42   virtual void OnTimerFired(uint32 timer_id);
43
44   virtual void ResetEngine(PDFEngine* engine);
45
46  private:
47   void ClearCache();
48
49   struct PageInfo {
50     int index;
51     pp::Rect rect;
52   };
53
54   PDFEngine* engine_;
55   pp::Rect visible_rect_;
56   std::vector<PageInfo> visible_pages_;
57   std::map<int, pp::ImageData*> image_cache_;
58   int sliding_width_;
59   int sliding_shift_;
60   int sliding_timeout_;
61   uint32 sliding_timer_id_;
62   NumberImageGenerator* number_image_generator_;
63 };
64
65 }  // namespace chrome_pdf
66
67 #endif  // PDF_THUMBNAIL_CONTROL_H_