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51259762 1/////////////////////////////////////////////////////////////////////////////
1e151594 2// Name: src/cocoa/display.mm
51259762
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3// Purpose: Cocoa implementation of wxDisplay class
4// Author: Ryan Norton
5// Modified by:
6// Created: 2004-10-03
7// RCS-ID: $Id$
1e151594 8// Copyright: (c) Ryan Norton
51259762
RN
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
dcb68102 11
51259762
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12#ifdef __GNUG__
13 #pragma implementation "display.h"
14#endif
15
16// For compilers that support precompilation, includes "wx.h".
17#include "wx/wxprec.h"
18
19#ifdef __BORLANDC__
20 #pragma hdrstop
21#endif
22
23#if wxUSE_DISPLAY
24
25#ifndef WX_PRECOMP
26 #include "wx/dynarray.h"
27#endif
28
29#include "wx/display.h"
30#include "wx/gdicmn.h"
31#include "wx/string.h"
32
33#import <Foundation/Foundation.h>
34
35// ----------------------------------------------------------------------------
36// private classes
37// ----------------------------------------------------------------------------
38
39size_t wxDisplayBase::GetCount()
40{
41 CGDisplayCount count;
42#ifdef __WXDEBUG__
43 CGDisplayErr err =
44#endif
45 CGGetActiveDisplayList(0, NULL, &count);
46
47 wxASSERT(err == CGDisplayNoErr);
48 return count;
49}
50
51int wxDisplayBase::GetFromPoint(const wxPoint &p)
52{
53 CGPoint thePoint = {(float)p.x, (float)p.y};
54 CGDirectDisplayID theID;
55 CGDisplayCount theCount;
56 CGDisplayErr err = CGGetDisplaysWithPoint(thePoint, 1, &theID, &theCount);
57 wxASSERT(err == CGDisplayNoErr);
58 int nWhich = -1;
59
60 if (theCount)
61 {
62 theCount = GetCount();
63 CGDirectDisplayID* theIDs = new CGDirectDisplayID[theCount];
64 err = CGGetActiveDisplayList(theCount, theIDs, &theCount);
65 wxASSERT(err == CGDisplayNoErr);
66
67 for(nWhich = 0; nWhich < (int) theCount; ++nWhich)
68 {
69 if(theIDs[nWhich] == theID)
70 break;
71 }
72
73 delete[] theIDs;
74
75 if(nWhich == (int) theCount)
76 {
77 wxFAIL_MSG(wxT("Failed to find display in display list"));
78 nWhich = -1;
79 }
80 }
81
82 return nWhich;
83}//CFUserNotification[NSBundle bundleForClass:[self class]]
84
85wxDisplay::wxDisplay(size_t index) : wxDisplayBase ( index )
86{
87 CGDisplayCount theCount = GetCount();
88 CGDirectDisplayID* theIDs = new CGDirectDisplayID[theCount];
89#ifdef __WXDEBUG__
90 CGDisplayErr err =
91#endif
92 CGGetActiveDisplayList(theCount, theIDs, &theCount);
93
94 wxASSERT(err == CGDisplayNoErr);
95 wxASSERT(index < theCount);
96
97 m_id = theIDs[index];
98
99 delete[] theIDs;
100}
101
102wxRect wxDisplay::GetGeometry() const
103{
104 CGRect theRect = CGDisplayBounds(m_id);
105 return wxRect( (int)theRect.origin.x,
106 (int)theRect.origin.y,
107 (int)theRect.size.width,
108 (int)theRect.size.height ); //floats
109}
110
111int wxDisplay::GetDepth() const
112{
113 return (int) CGDisplayBitsPerPixel(m_id); //size_t
114}
115
116wxString wxDisplay::GetName() const
117{
118 // Macs don't name their displays...
119 return wxEmptyString;
120}
121
122static int wxCFDictKeyToInt( CFDictionaryRef desc, CFStringRef key )
123{
124 CFNumberRef value;
125 int num = 0;
126
127 if ( (value = (CFNumberRef) CFDictionaryGetValue(desc, key)) == NULL )
128 return 0;
129 CFNumberGetValue(value, kCFNumberIntType, &num);
130 return num;
131}
132
133wxArrayVideoModes
134 wxDisplay::GetModes(const wxVideoMode& mode) const
135{
136 wxArrayVideoModes Modes;
137
138 CFArrayRef theArray = CGDisplayAvailableModes(m_id);
139
140 for(CFIndex i = 0; i < CFArrayGetCount(theArray); ++i)
141 {
142 CFDictionaryRef theValue = (CFDictionaryRef) CFArrayGetValueAtIndex(theArray, i);
143
144 wxVideoMode theMode(wxCFDictKeyToInt(theValue, kCGDisplayWidth),
145 wxCFDictKeyToInt(theValue, kCGDisplayHeight),
146 wxCFDictKeyToInt(theValue, kCGDisplayBitsPerPixel),
147 wxCFDictKeyToInt(theValue, kCGDisplayRefreshRate));
148
149 if (theMode.Matches(mode))
150 Modes.Add(theMode);
151 }
152
153 return Modes;
154}
155
156wxVideoMode wxDisplay::GetCurrentMode() const
157{
158 CFDictionaryRef theValue = CGDisplayCurrentMode (m_id);
159
160 return wxVideoMode(wxCFDictKeyToInt(theValue, kCGDisplayWidth),
161 wxCFDictKeyToInt(theValue, kCGDisplayHeight),
162 wxCFDictKeyToInt(theValue, kCGDisplayBitsPerPixel),
163 wxCFDictKeyToInt(theValue, kCGDisplayRefreshRate));
164}
165
166bool wxDisplay::ChangeMode(const wxVideoMode& mode)
167{
168 //Changing to default mode (wxDefualtVideoMode) doesn't
169 //work because we don't have access to the system's 'scrn'
170 //resource which holds the user's mode which the system
171 //will return to after this app is done
172 boolean_t bExactMatch;
173 CFDictionaryRef theCGMode = CGDisplayBestModeForParametersAndRefreshRate (
174 m_id,
175 (size_t)mode.bpp,
176 (size_t)mode.w,
177 (size_t)mode.h,
178 (double)mode.refresh,
179 &bExactMatch);
180
181 bool bOK = bExactMatch;
182
183 if(bOK)
184 bOK = CGDisplaySwitchToMode(m_id, theCGMode) == CGDisplayNoErr;
185
186 return bOK;
187}
188
189wxDisplay::~wxDisplay()
190{
191}
192
193#endif // wxUSE_DISPLAY