73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
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/*
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* @doc
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*
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* @module _MAGELLN.H -- Declaration of class to handle Magellan mouse. |
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*
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* Authors: <nl>
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* Jon Matousek
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*
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* Copyright (c) 1995-1996 Microsoft Corporation. All rights reserved.
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*/
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#if !defined(_MAGELLN_H) && !defined(NOMAGELLAN) // Win NT/95 only class.
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#define _MAGELLN_H
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#include "_edit.h"
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// All of the knobs for magellan mouse scrolling.
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const LONG DEAD_ZONE_TWIPS = 60; // 3 pixels normally
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const DWORD FAST_ROLL_SCROLL_TRANSITION_TICKS = 900; // in mili seconds.
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const INT FASTER_ROLL1_COUNT = 5;
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const INT FASTER_ROLL2_COUNT = 10;
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const WORD SMOOTH_ROLL_CLINES = 2; // multiples of rolls for roll1, roll2.
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const int SMOOTH_ROLL_NUM = 1;
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const int SMOOTH_ROLL_DENOM = 3;
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class CMagellan {
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friend class CMagellanBMPStateWrap;
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private:
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VOID CheckInstallMagellanTrackTimer (CTxtEdit &ed);
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VOID CheckRemoveMagellanUpdaterTimer (CTxtEdit &ed);
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BOOL InvertMagellanDownBMP ( CDisplay *pdp, BOOL fTurnOn, HDC repaintDC );
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WORD _fMagellanBitMapOn :1; // TRUE if the MDOWN bitmap is displayed.
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WORD _fMButtonScroll :1; // Auto scrolling initiated via magellan-mouse.
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WORD _fLastScrollWasRoll :1; // scroll will be wither roll or mdown.
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SHORT _ID_currMDownBMP; // Resource ID of _MagellanMDownBMP.
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HBITMAP _MagellanMDownBMP; // Loaded BMP
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POINT _zMouseScrollStartPt; // Magellan mouse's start scroll pt.
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public:
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BOOL MagellanStartMButtonScroll ( CTxtEdit &ed, POINT mDownPt );
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VOID MagellanEndMButtonScroll ( CTxtEdit &ed );
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VOID MagellanRollScroll ( CDisplay *pdp, int direction, WORD cLines, int speedNum, int speedDenom, BOOL fAdditive );
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VOID TrackUpdateMagellanMButtonDown ( CTxtEdit &ed, POINT mousePt);
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BOOL IsAutoScrolling() {return _fMButtonScroll;}
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BOOL ContinueMButtonScroll(INT x, INT y) {return (_zMouseScrollStartPt.x == x && _zMouseScrollStartPt.y == y);}
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~CMagellan() { Assert( !_MagellanMDownBMP && !_fMButtonScroll /* client state problems? */); }
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};
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class CMagellanBMPStateWrap {
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private:
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BOOL _fMagellanState;
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HDC _repaintDC;
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CTxtEdit &_ed;
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public:
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CMagellanBMPStateWrap(CTxtEdit &ed, HDC repaintDC);
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~CMagellanBMPStateWrap();
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};
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#endif // _MAGELLN_H
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