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