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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: generic/caret.h | |
3 | // Purpose: generic wxCaret class | |
4 | // Author: Vadim Zeitlin (original code by Robert Roebling) | |
5 | // Modified by: | |
6 | // Created: 25.05.99 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) wxWidgets team | |
9 | // Licence: wxWindows licence | |
10 | /////////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifndef _WX_CARET_H_ | |
13 | #define _WX_CARET_H_ | |
14 | ||
15 | #include "wx/timer.h" | |
16 | #include "wx/dc.h" | |
17 | #include "wx/overlay.h" | |
18 | ||
19 | #ifdef wxHAS_NATIVE_OVERLAY | |
20 | #define wxHAS_CARET_USING_OVERLAYS | |
21 | #endif | |
22 | ||
23 | class WXDLLIMPEXP_FWD_CORE wxCaret; | |
24 | ||
25 | class WXDLLEXPORT wxCaretTimer : public wxTimer | |
26 | { | |
27 | public: | |
28 | wxCaretTimer(wxCaret *caret); | |
29 | virtual void Notify(); | |
30 | ||
31 | private: | |
32 | wxCaret *m_caret; | |
33 | }; | |
34 | ||
35 | class WXDLLIMPEXP_CORE wxCaret : public wxCaretBase | |
36 | { | |
37 | public: | |
38 | // ctors | |
39 | // ----- | |
40 | // default - use Create() | |
41 | wxCaret() : m_timer(this) { InitGeneric(); } | |
42 | // creates a block caret associated with the given window | |
43 | wxCaret(wxWindowBase *window, int width, int height) | |
44 | : wxCaretBase(window, width, height), m_timer(this) { InitGeneric(); } | |
45 | wxCaret(wxWindowBase *window, const wxSize& size) | |
46 | : wxCaretBase(window, size), m_timer(this) { InitGeneric(); } | |
47 | ||
48 | virtual ~wxCaret(); | |
49 | ||
50 | // implementation | |
51 | // -------------- | |
52 | ||
53 | // called by wxWindow (not using the event tables) | |
54 | virtual void OnSetFocus(); | |
55 | virtual void OnKillFocus(); | |
56 | ||
57 | // called by wxCaretTimer | |
58 | void OnTimer(); | |
59 | ||
60 | protected: | |
61 | virtual void DoShow(); | |
62 | virtual void DoHide(); | |
63 | virtual void DoMove(); | |
64 | virtual void DoSize(); | |
65 | ||
66 | // blink the caret once | |
67 | void Blink(); | |
68 | ||
69 | // refresh the caret | |
70 | void Refresh(); | |
71 | ||
72 | // draw the caret on the given DC | |
73 | void DoDraw(wxDC *dc); | |
74 | ||
75 | private: | |
76 | // GTK specific initialization | |
77 | void InitGeneric(); | |
78 | ||
79 | #ifdef wxHAS_CARET_USING_OVERLAYS | |
80 | // the overlay for displaying the caret | |
81 | wxOverlay m_overlay; | |
82 | #else | |
83 | // the bitmap holding the part of window hidden by the caret when it was | |
84 | // at (m_xOld, m_yOld) | |
85 | wxBitmap m_bmpUnderCaret; | |
86 | int m_xOld, | |
87 | m_yOld; | |
88 | #endif | |
89 | ||
90 | wxCaretTimer m_timer; | |
91 | bool m_blinkedOut, // true => caret hidden right now | |
92 | m_hasFocus; // true => our window has focus | |
93 | }; | |
94 | ||
95 | #endif // _WX_CARET_H_ |