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