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/*
* Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "config.h"
#import "PlatformScreen.h"
#import "FloatRect.h"
#import "Frame.h"
#import "FrameView.h"
#import "Page.h"
namespace WebCore {
int screenDepth(Widget*)
{
return NSBitsPerPixelFromDepth([[NSScreen deepestScreen] depth]);
}
int screenDepthPerComponent(Widget*)
{
return NSBitsPerSampleFromDepth([[NSScreen deepestScreen] depth]);
}
bool screenIsMonochrome(Widget*)
{
NSString *colorSpace = NSColorSpaceFromDepth([[NSScreen deepestScreen] depth]);
return colorSpace == NSCalibratedWhiteColorSpace
|| colorSpace == NSCalibratedBlackColorSpace
|| colorSpace == NSDeviceWhiteColorSpace
|| colorSpace == NSDeviceBlackColorSpace;
}
// These functions scale between screen and page coordinates because JavaScript/DOM operations
// assume that the screen and the page share the same coordinate system.
FloatRect screenRect(Widget* widget)
{
NSWindow *window = widget ? [widget->platformWidget() window] : nil;
return toUserSpace([screenForWindow(window) frame], window);
}
FloatRect screenAvailableRect(Widget* widget)
{
NSWindow *window = widget ? [widget->platformWidget() window] : nil;
return toUserSpace([screenForWindow(window) visibleFrame], window);
}
NSScreen *screenForWindow(NSWindow *window)
{
NSScreen *screen = [window screen]; // nil if the window is off-screen
if (screen)
return screen;
NSArray *screens = [NSScreen screens];
if ([screens count] > 0)
return [screens objectAtIndex:0]; // screen containing the menubar
return nil;
}
FloatRect toUserSpace(const NSRect& rect, NSWindow *destination)
{
FloatRect userRect = rect;
userRect.setY(NSMaxY([screenForWindow(destination) frame]) - (userRect.y() + userRect.height())); // flip
if (destination)
userRect.scale(1 / [destination userSpaceScaleFactor]); // scale down
return userRect;
}
NSRect toDeviceSpace(const FloatRect& rect, NSWindow *source)
{
FloatRect deviceRect = rect;
if (source)
deviceRect.scale([source userSpaceScaleFactor]); // scale up
deviceRect.setY(NSMaxY([screenForWindow(source) frame]) - (deviceRect.y() + deviceRect.height())); // flip
return deviceRect;
}
NSPoint flipScreenPoint(const NSPoint& screenPoint, NSScreen *screen)
{
NSPoint flippedPoint = screenPoint;
flippedPoint.y = NSMaxY([screen frame]) - flippedPoint.y;
return flippedPoint;
}
} // namespace WebCore
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