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      1 // Copyright (c) 2012 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 #include "ppapi/cpp/dev/graphics_2d_dev.h"
      6 
      7 #include "ppapi/cpp/module_impl.h"
      8 #include "ppapi/cpp/point.h"
      9 
     10 namespace pp {
     11 
     12 namespace {
     13 
     14 template <> const char* interface_name<PPB_Graphics2D_Dev_0_1>() {
     15   return PPB_GRAPHICS2D_DEV_INTERFACE_0_1;
     16 }
     17 
     18 template <> const char* interface_name<PPB_Graphics2D_Dev_0_2>() {
     19   return PPB_GRAPHICS2D_DEV_INTERFACE_0_2;
     20 }
     21 
     22 }  // namespace
     23 
     24 // static
     25 bool Graphics2D_Dev::SupportsScale() {
     26   return has_interface<PPB_Graphics2D_Dev_0_1>() ||
     27       has_interface<PPB_Graphics2D_Dev_0_2>();
     28 }
     29 
     30 bool Graphics2D_Dev::SetScale(float scale) {
     31   if (has_interface<PPB_Graphics2D_Dev_0_2>()) {
     32     return PP_ToBool(get_interface<PPB_Graphics2D_Dev_0_2>()->SetScale(
     33         pp_resource(), scale));
     34   }
     35   if (has_interface<PPB_Graphics2D_Dev_0_1>()) {
     36     return PP_ToBool(get_interface<PPB_Graphics2D_Dev_0_1>()->SetScale(
     37         pp_resource(), scale));
     38   }
     39   return false;
     40 }
     41 
     42 float Graphics2D_Dev::GetScale() {
     43   if (has_interface<PPB_Graphics2D_Dev_0_2>())
     44     return get_interface<PPB_Graphics2D_Dev_0_2>()->GetScale(pp_resource());
     45   if (has_interface<PPB_Graphics2D_Dev_0_1>())
     46     return get_interface<PPB_Graphics2D_Dev_0_1>()->GetScale(pp_resource());
     47   return 1.0f;
     48 }
     49 
     50 void Graphics2D_Dev::SetOffset(const pp::Point& offset) {
     51   if (!has_interface<PPB_Graphics2D_Dev_0_2>())
     52     return;
     53   get_interface<PPB_Graphics2D_Dev_0_2>()->SetOffset(pp_resource(),
     54                                                      &offset.pp_point());
     55 }
     56 
     57 void Graphics2D_Dev::SetResizeMode(PP_Graphics2D_Dev_ResizeMode resize_mode) {
     58   if (!has_interface<PPB_Graphics2D_Dev_0_2>())
     59     return;
     60   get_interface<PPB_Graphics2D_Dev_0_2>()->SetResizeMode(pp_resource(),
     61                                                          resize_mode);
     62 }
     63 
     64 }  // namespace pp
     65