wine/dlls/winemac.drv/cocoa_display.m
2012-12-26 18:23:03 +01:00

103 lines
3.4 KiB
Objective-C

/*
* MACDRV Cocoa display settings
*
* Copyright 2011, 2012 Ken Thomases for CodeWeavers Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#import <AppKit/AppKit.h>
#include "macdrv_cocoa.h"
/***********************************************************************
* convert_display_rect
*
* Converts an NSRect in Cocoa's y-goes-up-from-bottom coordinate system
* to a CGRect in y-goes-down-from-top coordinates.
*/
static inline void convert_display_rect(CGRect* out_rect, NSRect in_rect,
NSRect primary_frame)
{
*out_rect = NSRectToCGRect(in_rect);
out_rect->origin.y = NSMaxY(primary_frame) - NSMaxY(in_rect);
}
/***********************************************************************
* macdrv_get_displays
*
* Returns information about the displays.
*
* Returns 0 on success and *displays contains a newly-allocated array
* of macdrv_display structures and *count contains the number of
* elements in that array. The first element of the array is the
* primary display. When the caller is done with the array, it should
* use macdrv_free_displays() to deallocate it.
*
* Returns non-zero on failure and *displays and *count are unchanged.
*/
int macdrv_get_displays(struct macdrv_display** displays, int* count)
{
int ret = -1;
NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
NSArray* screens = [NSScreen screens];
if (screens)
{
NSUInteger num_screens = [screens count];
struct macdrv_display* disps = malloc(num_screens * sizeof(disps[0]));
if (disps)
{
NSRect primary_frame;
NSUInteger i;
for (i = 0; i < num_screens; i++)
{
NSScreen* screen = [screens objectAtIndex:i];
NSRect frame = [screen frame];
NSRect visible_frame = [screen visibleFrame];
if (i == 0)
primary_frame = frame;
disps[i].displayID = [[[screen deviceDescription] objectForKey:@"NSScreenNumber"] unsignedIntValue];
convert_display_rect(&disps[i].frame, frame, primary_frame);
convert_display_rect(&disps[i].work_frame, visible_frame,
primary_frame);
}
*displays = disps;
*count = num_screens;
ret = 0;
}
}
[pool release];
return ret;
}
/***********************************************************************
* macdrv_free_displays
*
* Deallocates an array of macdrv_display structures previously returned
* from macdrv_get_displays().
*/
void macdrv_free_displays(struct macdrv_display* displays)
{
free(displays);
}