?? scrollcanvas.h
字號:
#pragma once
//-----------------------------------------------------------------------------------//
// Windows Graphics Programming: Win32 GDI and DirectDraw //
// ISBN 0-13-086985-6 //
// //
// Written by Yuan, Feng www.fengyuan.com //
// Copyright (c) 2000 by Hewlett-Packard Company www.hp.com //
// Published by Prentice Hall PTR, Prentice-Hall, Inc. www.phptr.com //
// //
// FileName : scrollcanvas.h //
// Description: Scrolling child window //
// Version : 1.00.000, May 31, 2000 //
//-----------------------------------------------------------------------------------//
class KScrollCanvas : public KCanvas
{
protected:
virtual LRESULT WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
int m_width, m_height;
int m_linedx, m_linedy;
int m_zoommul, m_zoomdiv;
virtual void OnZoom(int x, int y, int mul, int div);
virtual void OnTimer(WPARAM wParam, LPARAM lParam)
{
}
virtual void OnMouseMove(WPARAM wParam, LPARAM lParam)
{
}
virtual void OnCreate(void)
{
}
virtual void OnDestroy(void)
{
}
public:
KScrollCanvas(void)
{
m_width = 0; m_height = 0;
m_linedx = 0; m_linedy = 0;
m_zoommul = 1; m_zoomdiv = 1;
}
void SetSize(int width, int height, int linedx, int linedy, bool resize=false);
void SetScrollBar(int side, int maxsize, int pagesize);
void OnScroll(int nBar, int nScrollCode, int nPos);
virtual bool GetTitle(const TCHAR * pFileName, TCHAR * pTitle)
{
return false;
}
};
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