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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/cocoa/dcclient.mm | |
3 | // Purpose: wxWindowDC, wxPaintDC, and wxClientDC classes | |
4 | // Author: David Elliott | |
5 | // Modified by: | |
6 | // Created: 2003/04/01 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) 2003 David Elliott | |
9 | // Licence: wxWindows license | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #include "wx/dcclient.h" | |
13 | #include "wx/window.h" | |
14 | ||
15 | #import <AppKit/NSView.h> | |
16 | #import <AppKit/NSAffineTransform.h> | |
17 | ||
18 | /* | |
19 | * wxWindowDC | |
20 | */ | |
21 | IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC) | |
22 | ||
23 | wxWindowDC::wxWindowDC(void) | |
24 | { | |
25 | }; | |
26 | ||
27 | wxWindowDC::wxWindowDC( wxWindow *window ) | |
28 | { | |
29 | wxFAIL_MSG("non-client window DC's are not supported"); | |
30 | }; | |
31 | ||
32 | wxWindowDC::~wxWindowDC(void) | |
33 | { | |
34 | }; | |
35 | ||
36 | /* | |
37 | * wxClientDC | |
38 | */ | |
39 | IMPLEMENT_DYNAMIC_CLASS(wxClientDC, wxWindowDC) | |
40 | ||
41 | wxClientDC::wxClientDC(void) | |
42 | { | |
43 | }; | |
44 | ||
45 | wxClientDC::wxClientDC( wxWindow *window ) | |
46 | { | |
47 | }; | |
48 | ||
49 | wxClientDC::~wxClientDC(void) | |
50 | { | |
51 | }; | |
52 | ||
53 | /* | |
54 | * wxPaintDC | |
55 | */ | |
56 | IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxWindowDC) | |
57 | ||
58 | wxPaintDC::wxPaintDC(void) | |
59 | { | |
60 | }; | |
61 | ||
62 | wxPaintDC::wxPaintDC( wxWindow *window ) | |
63 | { | |
64 | wxASSERT_MSG(!sm_focusedDC,"Found another wxDC with focus. Do not use wxPaintDC outside of paint handlers!"); | |
65 | wxASSERT_MSG([NSView focusView]==window->GetNSView(), "PaintDC's NSView does not have focus. Please use wxPaintDC only as the first DC created in a paint handler"); | |
66 | sm_focusedDC=this; | |
67 | // This transform flips the graphics since wxDC uses top-left origin | |
68 | if(![window->GetNSView() isFlipped]) | |
69 | { | |
70 | // The transform is auto released | |
71 | NSAffineTransform *transform = [NSAffineTransform transform]; | |
72 | /* x' = 1x + 0y + 0 | |
73 | y' = 0x + -1y + window's height | |
74 | */ | |
75 | NSAffineTransformStruct matrix = { | |
76 | 1, 0 | |
77 | , 0, -1 | |
78 | , 0, [window->GetNSView() bounds].size.height | |
79 | }; | |
80 | [transform setTransformStruct: matrix]; | |
81 | // Apply the transform | |
82 | [transform concat]; | |
83 | } | |
84 | // TODO: Apply scaling transformation | |
85 | }; | |
86 | ||
87 | wxPaintDC::~wxPaintDC(void) | |
88 | { | |
89 | if(sm_focusedDC==this) | |
90 | sm_focusedDC=NULL; | |
91 | }; | |
92 |