mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-12 21:30:45 +01:00
de95329daa
The former was unused, the latter is replaced with the explicit C++11 deletions. The related RTC_DISALLOW_COPY_AND_ASSIGN is left for now, it is used in a lot more places. Bug: None Change-Id: I49503e7f2b9ff43c6285f8695833479bbc18c380 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/185500 Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Commit-Queue: Niels Moller <nisse@webrtc.org> Cr-Commit-Position: refs/heads/master@{#32224}
92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
/*
|
|
* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#ifndef MODULES_DESKTOP_CAPTURE_WIN_SCOPED_GDI_HANDLE_H_
|
|
#define MODULES_DESKTOP_CAPTURE_WIN_SCOPED_GDI_HANDLE_H_
|
|
|
|
#include <windows.h>
|
|
|
|
#include "rtc_base/constructor_magic.h"
|
|
|
|
namespace webrtc {
|
|
namespace win {
|
|
|
|
// Scoper for GDI objects.
|
|
template <class T, class Traits>
|
|
class ScopedGDIObject {
|
|
public:
|
|
ScopedGDIObject() : handle_(NULL) {}
|
|
explicit ScopedGDIObject(T object) : handle_(object) {}
|
|
|
|
~ScopedGDIObject() { Traits::Close(handle_); }
|
|
|
|
T Get() { return handle_; }
|
|
|
|
void Set(T object) {
|
|
if (handle_ && object != handle_)
|
|
Traits::Close(handle_);
|
|
handle_ = object;
|
|
}
|
|
|
|
ScopedGDIObject& operator=(T object) {
|
|
Set(object);
|
|
return *this;
|
|
}
|
|
|
|
T release() {
|
|
T object = handle_;
|
|
handle_ = NULL;
|
|
return object;
|
|
}
|
|
|
|
operator T() { return handle_; }
|
|
|
|
private:
|
|
T handle_;
|
|
|
|
RTC_DISALLOW_COPY_AND_ASSIGN(ScopedGDIObject);
|
|
};
|
|
|
|
// The traits class that uses DeleteObject() to close a handle.
|
|
template <typename T>
|
|
class DeleteObjectTraits {
|
|
public:
|
|
DeleteObjectTraits() = delete;
|
|
DeleteObjectTraits(const DeleteObjectTraits&) = delete;
|
|
DeleteObjectTraits& operator=(const DeleteObjectTraits&) = delete;
|
|
|
|
// Closes the handle.
|
|
static void Close(T handle) {
|
|
if (handle)
|
|
DeleteObject(handle);
|
|
}
|
|
};
|
|
|
|
// The traits class that uses DestroyCursor() to close a handle.
|
|
class DestroyCursorTraits {
|
|
public:
|
|
DestroyCursorTraits() = delete;
|
|
DestroyCursorTraits(const DestroyCursorTraits&) = delete;
|
|
DestroyCursorTraits& operator=(const DestroyCursorTraits&) = delete;
|
|
|
|
// Closes the handle.
|
|
static void Close(HCURSOR handle) {
|
|
if (handle)
|
|
DestroyCursor(handle);
|
|
}
|
|
};
|
|
|
|
typedef ScopedGDIObject<HBITMAP, DeleteObjectTraits<HBITMAP> > ScopedBitmap;
|
|
typedef ScopedGDIObject<HCURSOR, DestroyCursorTraits> ScopedCursor;
|
|
|
|
} // namespace win
|
|
} // namespace webrtc
|
|
|
|
#endif // MODULES_DESKTOP_CAPTURE_WIN_SCOPED_GDI_HANDLE_H_
|