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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/gfx/screen.h"
#import <ApplicationServices/ApplicationServices.h>
#import <Cocoa/Cocoa.h>
namespace gfx {
// static
gfx::Point Screen::GetCursorScreenPoint() {
NSPoint mouseLocation = [NSEvent mouseLocation];
// Flip coordinates to gfx (0,0 in top-left corner) using primary screen.
NSScreen* screen = [[NSScreen screens] objectAtIndex:0];
mouseLocation.y = NSMaxY([screen frame]) - mouseLocation.y;
return gfx::Point(mouseLocation.x, mouseLocation.y);
}
// static
gfx::Size Screen::GetPrimaryMonitorSize() {
CGDirectDisplayID main_display = CGMainDisplayID();
return gfx::Size(CGDisplayPixelsWide(main_display),
CGDisplayPixelsHigh(main_display));
}
// static
int Screen::GetNumMonitors() {
// Don't just return the number of online displays. It includes displays
// that mirror other displays, which are not desired in the count. It's
// tempting to use the count returned by CGGetActiveDisplayList, but active
// displays exclude sleeping displays, and those are desired in the count.
// It would be ridiculous to have this many displays connected, but
// CGDirectDisplayID is just an integer, so supporting up to this many
// doesn't hurt.
CGDirectDisplayID online_displays[128];
CGDisplayCount online_display_count = 0;
if (CGGetOnlineDisplayList(arraysize(online_displays),
online_displays,
&online_display_count) != kCGErrorSuccess) {
// 1 is a reasonable assumption.
return 1;
}
int display_count = 0;
for (CGDisplayCount online_display_index = 0;
online_display_index < online_display_count;
++online_display_index) {
CGDirectDisplayID online_display = online_displays[online_display_index];
if (CGDisplayMirrorsDisplay(online_display) == kCGNullDirectDisplay) {
// If this display doesn't mirror any other, include it in the count.
// The primary display in a mirrored set will be counted, but those that
// mirror it will not be.
++display_count;
}
}
return display_count;
}
} // namespace gfx
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