mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-04 11:26:09 +00:00
107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "nsScreenManagerOS2.h"
|
|
#include "nsScreenOS2.h"
|
|
|
|
|
|
nsScreenManagerOS2 :: nsScreenManagerOS2 ( )
|
|
{
|
|
// nothing else to do. I guess we could cache a bunch of information
|
|
// here, but we want to ask the device at runtime in case anything
|
|
// has changed.
|
|
}
|
|
|
|
|
|
nsScreenManagerOS2 :: ~nsScreenManagerOS2()
|
|
{
|
|
// nothing to see here.
|
|
}
|
|
|
|
|
|
// addref, release, QI
|
|
NS_IMPL_ISUPPORTS1(nsScreenManagerOS2, nsIScreenManager)
|
|
|
|
|
|
//
|
|
// CreateNewScreenObject
|
|
//
|
|
// Utility routine. Creates a new screen object from the given device handle
|
|
//
|
|
// NOTE: For this "single-monitor" impl, we just always return the cached primary
|
|
// screen. This should change when a multi-monitor impl is done.
|
|
//
|
|
nsIScreen*
|
|
nsScreenManagerOS2 :: CreateNewScreenObject ( )
|
|
{
|
|
nsIScreen* retval = nullptr;
|
|
if ( !mCachedMainScreen )
|
|
mCachedMainScreen = new nsScreenOS2 ( );
|
|
NS_IF_ADDREF(retval = mCachedMainScreen.get());
|
|
|
|
return retval;
|
|
}
|
|
|
|
|
|
//
|
|
// ScreenForRect
|
|
//
|
|
// Returns the screen that contains the rectangle. If the rect overlaps
|
|
// multiple screens, it picks the screen with the greatest area of intersection.
|
|
//
|
|
// The coordinates are in pixels (not twips) and in screen coordinates.
|
|
//
|
|
NS_IMETHODIMP
|
|
nsScreenManagerOS2 :: ScreenForRect ( int32_t /*inLeft*/, int32_t /*inTop*/, int32_t /*inWidth*/,
|
|
int32_t /*inHeight*/, nsIScreen **outScreen )
|
|
{
|
|
GetPrimaryScreen ( outScreen );
|
|
return NS_OK;
|
|
|
|
} // ScreenForRect
|
|
|
|
|
|
//
|
|
// GetPrimaryScreen
|
|
//
|
|
// The screen with the menubar/taskbar. This shouldn't be needed very
|
|
// often.
|
|
//
|
|
NS_IMETHODIMP
|
|
nsScreenManagerOS2 :: GetPrimaryScreen(nsIScreen * *aPrimaryScreen)
|
|
{
|
|
*aPrimaryScreen = CreateNewScreenObject(); // addrefs
|
|
return NS_OK;
|
|
|
|
} // GetPrimaryScreen
|
|
|
|
|
|
//
|
|
// GetNumberOfScreens
|
|
//
|
|
// Returns how many physical screens are available.
|
|
//
|
|
NS_IMETHODIMP
|
|
nsScreenManagerOS2 :: GetNumberOfScreens(uint32_t *aNumberOfScreens)
|
|
{
|
|
*aNumberOfScreens = 1;
|
|
return NS_OK;
|
|
|
|
} // GetNumberOfScreens
|
|
|
|
NS_IMETHODIMP
|
|
nsScreenManagerOS2::GetSystemDefaultScale(float *aDefaultScale)
|
|
{
|
|
*aDefaultScale = 1.0f;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsScreenManagerOS2 :: ScreenForNativeWidget(void *nativeWidget, nsIScreen **aScreen)
|
|
{
|
|
*aScreen = CreateNewScreenObject(); // addrefs
|
|
return NS_OK;
|
|
}
|