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489468fe | 1 | ///////////////////////////////////////////////////////////////////////////// |
524c47aa | 2 | // Name: src/osx/carbon/overlay.cpp |
489468fe SC |
3 | // Purpose: common wxOverlay code |
4 | // Author: Stefan Csomor | |
5 | // Modified by: | |
6 | // Created: 2006-10-20 | |
489468fe SC |
7 | // Copyright: (c) wxWidgets team |
8 | // Licence: wxWindows licence | |
9 | ///////////////////////////////////////////////////////////////////////////// | |
10 | ||
11 | // ============================================================================ | |
12 | // declarations | |
13 | // ============================================================================ | |
14 | ||
15 | // ---------------------------------------------------------------------------- | |
16 | // headers | |
17 | // ---------------------------------------------------------------------------- | |
18 | ||
19 | // For compilers that support precompilation, includes "wx.h". | |
20 | #include "wx/wxprec.h" | |
21 | ||
22 | #ifdef __BORLANDC__ | |
23 | #pragma hdrstop | |
24 | #endif | |
25 | ||
26 | #include "wx/overlay.h" | |
27 | ||
28 | #ifndef WX_PRECOMP | |
29 | #include "wx/dcclient.h" | |
30 | #endif | |
31 | ||
32 | #include "wx/private/overlay.h" | |
33 | ||
34 | #ifdef wxHAS_NATIVE_OVERLAY | |
35 | ||
36 | // ============================================================================ | |
37 | // implementation | |
38 | // ============================================================================ | |
39 | ||
40 | wxOverlayImpl::wxOverlayImpl() | |
41 | { | |
42 | m_window = NULL ; | |
43 | m_overlayContext = NULL ; | |
44 | m_overlayWindow = NULL ; | |
45 | } | |
46 | ||
47 | wxOverlayImpl::~wxOverlayImpl() | |
48 | { | |
49 | Reset(); | |
50 | } | |
51 | ||
52 | bool wxOverlayImpl::IsOk() | |
53 | { | |
54 | return m_overlayWindow != NULL ; | |
55 | } | |
56 | ||
57 | void wxOverlayImpl::MacGetBounds( Rect *bounds ) | |
58 | { | |
59 | int x, y; | |
60 | x=y=0; | |
61 | m_window->MacWindowToRootWindow( &x , &y ) ; | |
b2680ced SC |
62 | wxNonOwnedWindow* tlw = m_window->MacGetTopLevelWindow(); |
63 | tlw->GetNonOwnedPeer()->WindowToScreen( &x, &y ); | |
489468fe | 64 | |
b2680ced SC |
65 | bounds->top = y+m_y; |
66 | bounds->left = x+m_x; | |
67 | bounds->bottom = y+m_y+m_height; | |
68 | bounds->right = x+m_x+m_width; | |
489468fe SC |
69 | } |
70 | ||
71 | OSStatus wxOverlayImpl::CreateOverlayWindow() | |
72 | { | |
73 | OSStatus err; | |
74 | ||
75 | WindowAttributes overlayAttributes = kWindowIgnoreClicksAttribute; | |
76 | ||
77 | if ( m_window ) | |
78 | { | |
79 | m_overlayParentWindow =(WindowRef) m_window->MacGetTopLevelWindowRef(); | |
80 | ||
81 | Rect bounds ; | |
82 | MacGetBounds(&bounds); | |
83 | err = CreateNewWindow( kOverlayWindowClass, overlayAttributes, &bounds, &m_overlayWindow ); | |
84 | if ( err == noErr ) | |
85 | { | |
86 | SetWindowGroup( m_overlayWindow, GetWindowGroup(m_overlayParentWindow)); // Put them in the same group so that their window layers are consistent | |
87 | } | |
88 | } | |
89 | else | |
90 | { | |
91 | m_overlayParentWindow = NULL ; | |
92 | CGRect cgbounds ; | |
93 | cgbounds = CGDisplayBounds(CGMainDisplayID()); | |
94 | Rect bounds; | |
95 | bounds.top = (short)cgbounds.origin.y; | |
96 | bounds.left = (short)cgbounds.origin.x; | |
97 | bounds.bottom = (short)(bounds.top + cgbounds.size.height); | |
98 | bounds.right = (short)(bounds.left + cgbounds.size.width); | |
99 | err = CreateNewWindow( kOverlayWindowClass, overlayAttributes, &bounds, &m_overlayWindow ); | |
100 | } | |
101 | ShowWindow(m_overlayWindow); | |
102 | return err; | |
103 | } | |
104 | ||
105 | void wxOverlayImpl::Init( wxDC* dc, int x , int y , int width , int height ) | |
106 | { | |
107 | wxASSERT_MSG( !IsOk() , _("You cannot Init an overlay twice") ); | |
108 | ||
109 | m_window = dc->GetWindow(); | |
110 | m_x = x ; | |
111 | m_y = y ; | |
112 | if ( dc->IsKindOf( CLASSINFO( wxClientDC ) )) | |
113 | { | |
114 | wxPoint origin = m_window->GetClientAreaOrigin(); | |
115 | m_x += origin.x; | |
116 | m_y += origin.y; | |
117 | } | |
118 | m_width = width ; | |
119 | m_height = height ; | |
120 | ||
121 | OSStatus err = CreateOverlayWindow(); | |
122 | wxASSERT_MSG( err == noErr , _("Couldn't create the overlay window") ); | |
123 | #ifndef __LP64__ | |
124 | err = QDBeginCGContext(GetWindowPort(m_overlayWindow), &m_overlayContext); | |
125 | #endif | |
126 | CGContextTranslateCTM( m_overlayContext, 0, m_height ); | |
127 | CGContextScaleCTM( m_overlayContext, 1, -1 ); | |
128 | CGContextTranslateCTM( m_overlayContext, -m_x , -m_y ); | |
129 | wxASSERT_MSG( err == noErr , _("Couldn't init the context on the overlay window") ); | |
130 | } | |
131 | ||
132 | void wxOverlayImpl::BeginDrawing( wxDC* dc) | |
133 | { | |
134 | wxDCImpl *impl = dc->GetImpl(); | |
135 | wxGCDCImpl *win_impl = wxDynamicCast(impl,wxGCDCImpl); | |
136 | if (win_impl) | |
137 | { | |
138 | win_impl->SetGraphicsContext( wxGraphicsContext::CreateFromNative( m_overlayContext ) ); | |
139 | dc->SetClippingRegion( m_x , m_y , m_width , m_height ) ; | |
140 | } | |
141 | } | |
142 | ||
143 | void wxOverlayImpl::EndDrawing( wxDC* dc) | |
144 | { | |
145 | wxDCImpl *impl = dc->GetImpl(); | |
146 | wxGCDCImpl *win_impl = wxDynamicCast(impl,wxGCDCImpl); | |
147 | if (win_impl) | |
148 | win_impl->SetGraphicsContext(NULL); | |
149 | ||
150 | CGContextFlush( m_overlayContext ); | |
151 | } | |
152 | ||
153 | void wxOverlayImpl::Clear(wxDC* WXUNUSED(dc)) | |
154 | { | |
155 | wxASSERT_MSG( IsOk() , _("You cannot Clear an overlay that is not inited") ); | |
156 | CGRect box = CGRectMake( m_x - 1, m_y - 1 , m_width + 2 , m_height + 2 ); | |
157 | CGContextClearRect( m_overlayContext, box ); | |
158 | } | |
159 | ||
160 | void wxOverlayImpl::Reset() | |
161 | { | |
162 | if ( m_overlayContext ) | |
163 | { | |
164 | #ifndef __LP64__ | |
165 | OSStatus err = QDEndCGContext(GetWindowPort(m_overlayWindow), &m_overlayContext); | |
166 | if ( err != noErr ) | |
167 | { | |
168 | wxFAIL_MSG("Couldn't end the context on the overlay window"); | |
169 | } | |
170 | #endif | |
171 | m_overlayContext = NULL ; | |
172 | } | |
173 | ||
174 | // todo : don't dispose, only hide and reposition on next run | |
175 | if (m_overlayWindow) | |
176 | { | |
177 | DisposeWindow(m_overlayWindow); | |
178 | m_overlayWindow = NULL ; | |
179 | } | |
180 | } | |
181 | ||
182 | #endif // wxHAS_NATIVE_OVERLAY |