376 lines
10 KiB
C
376 lines
10 KiB
C
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/**************************************************************************
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*
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* THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
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* KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
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* PURPOSE.
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*
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* Copyright (c) 1992 - 1995 Microsoft Corporation. All Rights Reserved.
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*
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**************************************************************************/
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/****************************************************************************
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*
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* arrow.c: Arrow control window
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*
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* Vidcap32 Source code
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*
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***************************************************************************/
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#include <windows.h>
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#include <windowsx.h>
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#include <stdlib.h>
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#include "arrow.h"
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// a few porting macros
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#ifdef _WIN32
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#define SENDSCROLL(hwnd, msg, a, b, h) \
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SendMessage(hwnd, msg, (UINT)MAKELONG(a,b), (LONG_PTR)(h))
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#define EXPORT
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#else
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#define SENDSCROLL(hwnd, msg, a, b, h)
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SendMessage(hwnd, msg, a, MAKELONG(b,h)) // handle is in HIWORD
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#endif
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#ifndef LONG2POINT
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#define LONG2POINT(l, pt) ((pt).x = (SHORT)LOWORD(l), (pt).y = (SHORT)HIWORD(l))
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#endif
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#define GWID(hwnd) (GetDlgCtrlID(hwnd))
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#define SHIFT_TO_DOUBLE 1
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#define DOUBLECLICK 0
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#define POINTSPERARROW 3
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#define ARROWXAXIS 15
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#define ARROWYAXIS 15
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POINT ArrowUp[POINTSPERARROW] = {7,1, 3,5, 11,5};
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POINT ArrowDown[POINTSPERARROW] = {7,13, 3,9, 11,9};
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static BOOL bRight;
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static RECT rUp, rDown;
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static LPRECT lpUpDown;
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static FARPROC lpArrowProc;
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static HANDLE hParent;
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BOOL fInTimer;
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#define TEMP_BUFF_SIZE 32
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#define SCROLLMSG(hwndTo, msg, code, hwndId) \
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SENDSCROLL(hwndTo, msg, code, GWID(hwndId), hwndId)
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/*
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* @doc EXTERNAL WINCOM
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*
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* @api LONG | ArrowEditChange | This function is helps process the WM_VSCROLL
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* message when using the Arrow controlled edit box.
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* It will increment/decrement the value in the given edit box and return
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* the new value. Increment/decrement bounds are checked and Beep 0 is produced if
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* the user attempts to go beyond the bounds.
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*
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* @parm HWND | hwndEdit | Specifies a handle to the edit box window.
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*
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* @parm UINT | wParam | Specifies the <p wParam> passed to the WM_VSCROLL message.
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*
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* @parm LONG | lMin | Specifies the minimum value bound for decrements.
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*
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* @parm LONG | lMax | Specifies the maximum value bound for increments.
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*
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* @rdesc Returns the updated value of the edit box.
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*
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*/
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LONG FAR PASCAL ArrowEditChange( HWND hwndEdit, UINT wParam,
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LONG lMin, LONG lMax )
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{
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TCHAR achTemp[TEMP_BUFF_SIZE];
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LONG l;
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GetWindowText( hwndEdit, achTemp, TEMP_BUFF_SIZE );
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l = atol(achTemp);
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if( wParam == SB_LINEUP ) {
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/* size kluge for now */
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if( l < lMax ) {
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l++;
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wsprintf( achTemp, "%ld", l );
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SetWindowText( hwndEdit, achTemp );
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} else {
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MessageBeep( 0 );
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}
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} else if( wParam == SB_LINEDOWN ) {
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if( l > lMin ) {
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l--;
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wsprintf( achTemp, "%ld", l );
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SetWindowText( hwndEdit, achTemp );
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} else {
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MessageBeep( 0 );
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}
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}
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return( l );
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}
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UINT NEAR PASCAL UpOrDown()
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{
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LONG pos;
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UINT retval;
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POINT pt;
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pos = GetMessagePos();
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LONG2POINT(pos,pt);
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if (PtInRect((LPRECT)&rUp, pt))
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retval = SB_LINEUP;
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else if (PtInRect((LPRECT)&rDown, pt))
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retval = SB_LINEDOWN;
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else
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retval = (UINT)(-1); /* -1, because SB_LINEUP == 0 */
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return(retval);
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}
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UINT FAR PASCAL ArrowTimerProc(hWnd, wMsg, nID, dwTime)
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HANDLE hWnd;
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UINT wMsg;
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short nID;
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DWORD dwTime;
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{
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UINT wScroll;
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if ((wScroll = UpOrDown()) != -1)
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{
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if (bRight == WM_RBUTTONDOWN)
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wScroll += SB_PAGEUP - SB_LINEUP;
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SCROLLMSG( hParent, WM_VSCROLL, wScroll, hWnd);
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}
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/* Don't need to call KillTimer(), because SetTimer will reset the right one */
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SetTimer(hWnd, nID, 50, (TIMERPROC)lpArrowProc);
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return(0);
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}
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void InvertArrow(HANDLE hArrow, UINT wScroll)
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{
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HDC hDC;
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lpUpDown = (wScroll == SB_LINEUP) ? &rUp : &rDown;
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hDC = GetDC(hArrow);
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ScreenToClient(hArrow, (LPPOINT)&(lpUpDown->left));
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ScreenToClient(hArrow, (LPPOINT)&(lpUpDown->right));
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InvertRect(hDC, lpUpDown);
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ClientToScreen(hArrow, (LPPOINT)&(lpUpDown->left));
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ClientToScreen(hArrow, (LPPOINT)&(lpUpDown->right));
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ReleaseDC(hArrow, hDC);
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ValidateRect(hArrow, lpUpDown);
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return;
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}
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LRESULT FAR PASCAL EXPORT ArrowControlProc(HWND hArrow, unsigned message,
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WPARAM wParam, LPARAM lParam)
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{
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PAINTSTRUCT ps;
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RECT rArrow;
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HBRUSH hbr;
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short fUpDownOut;
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UINT wScroll;
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switch (message) {
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/*
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case WM_CREATE:
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break;
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case WM_DESTROY:
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break;
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*/
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case WM_MOUSEMOVE:
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if (!bRight) /* If not captured, don't worry about it */
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break;
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if (lpUpDown == &rUp)
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fUpDownOut = SB_LINEUP;
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else if (lpUpDown == &rDown)
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fUpDownOut = SB_LINEDOWN;
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else
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fUpDownOut = -1;
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switch (wScroll = UpOrDown()) {
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case SB_LINEUP:
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if (fUpDownOut == SB_LINEDOWN)
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InvertArrow(hArrow, SB_LINEDOWN);
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if (fUpDownOut != SB_LINEUP)
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InvertArrow(hArrow, wScroll);
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break;
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case SB_LINEDOWN:
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if (fUpDownOut == SB_LINEUP)
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InvertArrow(hArrow, SB_LINEUP);
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if (fUpDownOut != SB_LINEDOWN)
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InvertArrow(hArrow, wScroll);
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break;
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default:
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if (lpUpDown) {
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InvertArrow(hArrow, fUpDownOut);
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lpUpDown = 0;
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}
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}
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break;
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case WM_RBUTTONDOWN:
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case WM_LBUTTONDOWN:
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if (bRight)
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break;
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bRight = message;
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SetCapture(hArrow);
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hParent = GetParent(hArrow);
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GetWindowRect(hArrow, (LPRECT) &rUp);
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CopyRect((LPRECT)&rDown, (LPRECT) &rUp);
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rUp.bottom = (rUp.top + rUp.bottom) / 2;
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rDown.top = rUp.bottom + 1;
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wScroll = UpOrDown();
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InvertArrow(hArrow, wScroll);
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#if SHIFT_TO_DOUBLE
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if (wParam & MK_SHIFT) {
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if (message != WM_RBUTTONDOWN)
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goto ShiftLClick;
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else
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goto ShiftRClick;
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}
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#endif
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if (message == WM_RBUTTONDOWN)
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wScroll += SB_PAGEUP - SB_LINEUP;
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SCROLLMSG(hParent, WM_VSCROLL, wScroll, hArrow);
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lpArrowProc = MakeProcInstance((FARPROC) ArrowTimerProc,ghInst);
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SetTimer(hArrow, GWID(hArrow), 200, (TIMERPROC)lpArrowProc);
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break;
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case WM_LBUTTONUP:
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case WM_RBUTTONUP:
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if ((bRight - WM_LBUTTONDOWN + WM_LBUTTONUP) == (int)message) {
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bRight = 0;
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ReleaseCapture();
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if (lpUpDown)
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InvertArrow(hArrow,(UINT)(lpUpDown==&rUp)?
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SB_LINEUP:SB_LINEDOWN);
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if (lpArrowProc) {
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SCROLLMSG(hParent, WM_VSCROLL, SB_ENDSCROLL, hArrow);
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KillTimer(hArrow, GWID(hArrow));
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FreeProcInstance(lpArrowProc);
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ReleaseCapture();
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lpArrowProc = 0;
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}
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}
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break;
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case WM_LBUTTONDBLCLK:
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ShiftLClick:
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wScroll = UpOrDown() + SB_TOP - SB_LINEUP;
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SCROLLMSG(hParent, WM_VSCROLL, wScroll, hArrow);
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SCROLLMSG(hParent, WM_VSCROLL, SB_ENDSCROLL, hArrow);
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break;
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case WM_RBUTTONDBLCLK:
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ShiftRClick:
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wScroll = UpOrDown() + SB_THUMBPOSITION - SB_LINEUP;
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SCROLLMSG(hParent, WM_VSCROLL, wScroll, hArrow);
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SCROLLMSG(hParent, WM_VSCROLL, SB_ENDSCROLL, hArrow);
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/*
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hDC = GetDC(hArrow);
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InvertRect(hDC, (LPRECT) &rArrow);
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ReleaseDC(hArrow, hDC);
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ValidateRect(hArrow, (LPRECT) &rArrow);
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*/
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break;
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case WM_PAINT:
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BeginPaint(hArrow, &ps);
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GetClientRect(hArrow, (LPRECT) &rArrow);
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if ( hbr = CreateSolidBrush(GetSysColor(COLOR_BTNFACE)) )
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{
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FillRect(ps.hdc, (LPRECT)&rArrow, hbr);
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DeleteObject(hbr);
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}
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hbr = SelectObject(ps.hdc, GetStockObject(BLACK_BRUSH));
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SetTextColor(ps.hdc, GetSysColor(COLOR_WINDOWFRAME));
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SetMapMode(ps.hdc, MM_ANISOTROPIC);
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SetViewportOrgEx(ps.hdc, rArrow.left, rArrow.top, NULL);
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SetViewportExtEx(ps.hdc, rArrow.right - rArrow.left,
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rArrow.bottom - rArrow.top, NULL);
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SetWindowOrgEx(ps.hdc, 0, 0, NULL);
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SetWindowExtEx(ps.hdc, ARROWXAXIS, ARROWYAXIS, NULL);
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MoveToEx(ps.hdc, 0, (ARROWYAXIS / 2), NULL);
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LineTo(ps.hdc, ARROWXAXIS, (ARROWYAXIS / 2));
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/*
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Polygon(ps.hdc, (LPPOINT) Arrow, 10);
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*/
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Polygon(ps.hdc, (LPPOINT) ArrowUp, POINTSPERARROW);
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Polygon(ps.hdc, (LPPOINT) ArrowDown, POINTSPERARROW);
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SelectObject(ps.hdc, hbr);
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EndPaint(hArrow, &ps);
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break;
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default:
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return(DefWindowProc(hArrow, message, wParam, lParam));
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break;
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}
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return(0L);
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}
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#ifndef _WIN32
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#pragma alloc_text(_INIT, ArrowInit)
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#endif
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BOOL FAR PASCAL ArrowInit(HANDLE hInst)
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{
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WNDCLASS wcArrow;
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wcArrow.lpszClassName = SPINARROW_CLASSNAME;
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wcArrow.hInstance = hInst;
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wcArrow.lpfnWndProc = ArrowControlProc;
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wcArrow.hCursor = LoadCursor(NULL, IDC_ARROW);
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wcArrow.hIcon = NULL;
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wcArrow.lpszMenuName = NULL;
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wcArrow.hbrBackground = CreateSolidBrush(GetSysColor(COLOR_WINDOW));
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wcArrow.style = CS_HREDRAW | CS_VREDRAW;
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#if DOUBLECLICK
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wcArrow.style |= CS_DBLCLKS;
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#endif
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wcArrow.cbClsExtra = 0;
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wcArrow.cbWndExtra = 0;
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if (!RegisterClass(&wcArrow))
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return FALSE;
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return TRUE;
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}
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