| Index: base/win/scoped_handle.h
|
| ===================================================================
|
| --- base/win/scoped_handle.h (revision 62694)
|
| +++ base/win/scoped_handle.h (working copy)
|
| @@ -2,8 +2,8 @@
|
| // Use of this source code is governed by a BSD-style license that can be
|
| // found in the LICENSE file.
|
|
|
| -#ifndef BASE_SCOPED_HANDLE_WIN_H_
|
| -#define BASE_SCOPED_HANDLE_WIN_H_
|
| +#ifndef BASE_WIN_SCOPED_HANDLE_H_
|
| +#define BASE_WIN_SCOPED_HANDLE_H_
|
| #pragma once
|
|
|
| #include <windows.h>
|
| @@ -11,6 +11,9 @@
|
| #include "base/basictypes.h"
|
| #include "base/logging.h"
|
|
|
| +namespace base {
|
| +namespace win {
|
| +
|
| // Used so we always remember to close the handle.
|
| // The class interface matches that of ScopedStdioHandle in addition to an
|
| // IsValid() method since invalid handles on windows can be either NULL or
|
| @@ -81,158 +84,7 @@
|
| DISALLOW_COPY_AND_ASSIGN(ScopedHandle);
|
| };
|
|
|
| -// Like ScopedHandle, but for HANDLEs returned from FindFile().
|
| -class ScopedFindFileHandle {
|
| - public:
|
| - explicit ScopedFindFileHandle(HANDLE handle) : handle_(handle) {
|
| - // Windows is inconsistent about invalid handles, so we always use NULL
|
| - if (handle_ == INVALID_HANDLE_VALUE)
|
| - handle_ = NULL;
|
| - }
|
| +} // namespace win
|
| +} // namespace base
|
|
|
| - ~ScopedFindFileHandle() {
|
| - if (handle_)
|
| - FindClose(handle_);
|
| - }
|
| -
|
| - // Use this instead of comparing to INVALID_HANDLE_VALUE to pick up our NULL
|
| - // usage for errors.
|
| - bool IsValid() const { return handle_ != NULL; }
|
| -
|
| - operator HANDLE() { return handle_; }
|
| -
|
| - private:
|
| - HANDLE handle_;
|
| -
|
| - DISALLOW_COPY_AND_ASSIGN(ScopedFindFileHandle);
|
| -};
|
| -
|
| -// Like ScopedHandle but for HDC. Only use this on HDCs returned from
|
| -// CreateCompatibleDC. For an HDC returned by GetDC, use ReleaseDC instead.
|
| -class ScopedHDC {
|
| - public:
|
| - ScopedHDC() : hdc_(NULL) { }
|
| - explicit ScopedHDC(HDC h) : hdc_(h) { }
|
| -
|
| - ~ScopedHDC() {
|
| - Close();
|
| - }
|
| -
|
| - HDC Get() {
|
| - return hdc_;
|
| - }
|
| -
|
| - void Set(HDC h) {
|
| - Close();
|
| - hdc_ = h;
|
| - }
|
| -
|
| - operator HDC() { return hdc_; }
|
| -
|
| - private:
|
| - void Close() {
|
| -#ifdef NOGDI
|
| - assert(false);
|
| -#else
|
| - if (hdc_)
|
| - DeleteDC(hdc_);
|
| -#endif // NOGDI
|
| - }
|
| -
|
| - HDC hdc_;
|
| - DISALLOW_COPY_AND_ASSIGN(ScopedHDC);
|
| -};
|
| -
|
| -// Like ScopedHandle but for GDI objects.
|
| -template<class T>
|
| -class ScopedGDIObject {
|
| - public:
|
| - ScopedGDIObject() : object_(NULL) {}
|
| - explicit ScopedGDIObject(T object) : object_(object) {}
|
| -
|
| - ~ScopedGDIObject() {
|
| - Close();
|
| - }
|
| -
|
| - T Get() {
|
| - return object_;
|
| - }
|
| -
|
| - void Set(T object) {
|
| - if (object_ && object != object_)
|
| - Close();
|
| - object_ = object;
|
| - }
|
| -
|
| - ScopedGDIObject& operator=(T object) {
|
| - Set(object);
|
| - return *this;
|
| - }
|
| -
|
| - T release() {
|
| - T object = object_;
|
| - object_ = NULL;
|
| - return object;
|
| - }
|
| -
|
| - operator T() { return object_; }
|
| -
|
| - private:
|
| - void Close() {
|
| - if (object_)
|
| - DeleteObject(object_);
|
| - }
|
| -
|
| - T object_;
|
| - DISALLOW_COPY_AND_ASSIGN(ScopedGDIObject);
|
| -};
|
| -
|
| -// An explicit specialization for HICON because we have to call DestroyIcon()
|
| -// instead of DeleteObject() for HICON.
|
| -template<>
|
| -void ScopedGDIObject<HICON>::Close() {
|
| - if (object_)
|
| - DestroyIcon(object_);
|
| -}
|
| -
|
| -// Typedefs for some common use cases.
|
| -typedef ScopedGDIObject<HBITMAP> ScopedBitmap;
|
| -typedef ScopedGDIObject<HRGN> ScopedRegion;
|
| -typedef ScopedGDIObject<HFONT> ScopedHFONT;
|
| -typedef ScopedGDIObject<HICON> ScopedHICON;
|
| -
|
| -// Like ScopedHandle except for HGLOBAL.
|
| -template<class T>
|
| -class ScopedHGlobal {
|
| - public:
|
| - explicit ScopedHGlobal(HGLOBAL glob) : glob_(glob) {
|
| - data_ = static_cast<T*>(GlobalLock(glob_));
|
| - }
|
| - ~ScopedHGlobal() {
|
| - GlobalUnlock(glob_);
|
| - }
|
| -
|
| - T* get() { return data_; }
|
| -
|
| - size_t Size() const { return GlobalSize(glob_); }
|
| -
|
| - T* operator->() const {
|
| - assert(data_ != 0);
|
| - return data_;
|
| - }
|
| -
|
| - T* release() {
|
| - T* data = data_;
|
| - data_ = NULL;
|
| - return data;
|
| - }
|
| -
|
| - private:
|
| - HGLOBAL glob_;
|
| -
|
| - T* data_;
|
| -
|
| - DISALLOW_COPY_AND_ASSIGN(ScopedHGlobal);
|
| -};
|
| -
|
| #endif // BASE_SCOPED_HANDLE_WIN_H_
|
|
|