407 lines
11 KiB
C
407 lines
11 KiB
C
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/*++
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Copyright (c) 1994-1998, Microsoft Corporation All rights reserved.
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Module Name:
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mousewhl.c
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Abstract:
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This module contains the routines for the Mouse Wheel Property Sheet
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page.
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Revision History:
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--*/
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//
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// Include Files.
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//
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#include "main.h"
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#include "util.h"
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#include "rc.h"
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#include "mousehlp.h"
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#ifndef ARRAYSIZE
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#define ARRAYSIZE(x) (sizeof(x)/sizeof((x)[0]))
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#endif
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//
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// Constant Declarations.
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//
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#define SCROLL_DEFAULT 3
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#define MIN_SCROLL_LINES 1
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#define MAX_SCROLL_LINES 100
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#define MAX_CHARS_FOR_SCROLL_LINES 3
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#ifndef UINT_MAX
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#define UINT_MAX ((UINT)-1)
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#endif
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//
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// Typedef Declarations.
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//
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//
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// Dialog Data.
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//
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typedef struct tag_MouseGenStr
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{
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UINT nOrigScrollLines; //If this is WHEEL_PAGESCROLL, then we scroll one Page at a time.
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HWND hDlg;
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} MOUSEWHLSTR, *PMOUSEWHLSTR, *LPMOUSEWHLSTR;
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//
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// Context Help Ids.
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//
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const DWORD aMouseWheelHelpIds[] =
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{
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IDC_GROUPBOX_1, IDH_COMM_GROUPBOX,
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IDRAD_SCROLL_LINES, IDH_MOUSE_WHEEL_SCROLLING,
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IDRAD_SCROLL_PAGE, IDH_MOUSE_WHEEL_SCROLLING,
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IDC_SPIN_SCROLL_LINES, IDH_MOUSE_WHEEL_SCROLLING,
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IDT_SCROLL_FEATURE_TXT, IDH_MOUSE_WHEEL_SCROLLING,
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IDE_BUDDY_SCROLL_LINES, IDH_MOUSE_WHEEL_SCROLLING,
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0,0
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};
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////////////////////////////////////////////////////////////////////////////
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//
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// EnableMouseWheelDlgControls
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//
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////////////////////////////////////////////////////////////////////////////
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void EnableMouseWheelDlgControls(HWND hDlg, BOOL bEnable)
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{
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static const UINT rgidCtl[] = {
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IDE_BUDDY_SCROLL_LINES,
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IDC_SPIN_SCROLL_LINES,
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};
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int i;
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for (i = 0; i < ARRAYSIZE(rgidCtl); i++)
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{
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HWND hwnd = GetDlgItem(hDlg, rgidCtl[i]);
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if (NULL != hwnd)
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{
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EnableWindow(hwnd, bEnable);
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}
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}
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}
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////////////////////////////////////////////////////////////////////////////
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//
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// SetScrollWheelLines
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//
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////////////////////////////////////////////////////////////////////////////
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void SetScrollWheelLines(HWND hDlg, BOOL bSaveSettings)
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{
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UINT uNumLines = SCROLL_DEFAULT;
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UINT uiSaveFlag = (bSaveSettings) ? SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE : FALSE;
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if (IsDlgButtonChecked(hDlg, IDRAD_SCROLL_LINES))
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{
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//Scrolling n Lines at a time
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BOOL fTranslated = FALSE; // numeric conversion successful
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// Retrieve number of scroll-lines from edit control.
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uNumLines = GetDlgItemInt(hDlg, IDE_BUDDY_SCROLL_LINES,
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&fTranslated, FALSE);
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if (!fTranslated)
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{
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uNumLines = SCROLL_DEFAULT;
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}
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}
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else
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{
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//Scrolling a page at a time
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uNumLines = WHEEL_PAGESCROLL;
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}
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SystemParametersInfo( SPI_SETWHEELSCROLLLINES,
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uNumLines,
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NULL,
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uiSaveFlag);
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}
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////////////////////////////////////////////////////////////////////////////
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//
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// DestroyMouseWheelDlg
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//
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////////////////////////////////////////////////////////////////////////////
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void DestroyMouseWheelDlg(
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PMOUSEWHLSTR pMstr)
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{
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HWND hDlg = NULL;
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if( pMstr )
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{
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hDlg = pMstr->hDlg;
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LocalFree( (HGLOBAL)pMstr );
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SetWindowLongPtr( hDlg, DWLP_USER, 0 );
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}
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}
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////////////////////////////////////////////////////////////////////////////
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//
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// InitMouseWheelDlg
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//
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////////////////////////////////////////////////////////////////////////////
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void InitMouseWheelDlg(
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HWND hDlg)
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{
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PMOUSEWHLSTR pMstr = NULL;
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HWND hWndBuddy = NULL;
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UINT nScrollLines = SCROLL_DEFAULT;
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pMstr = (PMOUSEWHLSTR)LocalAlloc(LPTR, sizeof(MOUSEWHLSTR));
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if (pMstr == NULL)
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{
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return;
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}
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SetWindowLongPtr(hDlg, DWLP_USER, (LONG_PTR)pMstr);
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pMstr->hDlg = hDlg;
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//////////////////////
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SystemParametersInfo(SPI_GETWHEELSCROLLLINES, 0, &nScrollLines, 0);
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if (nScrollLines < MIN_SCROLL_LINES)
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{
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nScrollLines = SCROLL_DEFAULT;
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}
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pMstr->nOrigScrollLines = nScrollLines;
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//Set the buddy window
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hWndBuddy = GetDlgItem (hDlg, IDE_BUDDY_SCROLL_LINES);
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SendDlgItemMessage (hDlg, IDC_SPIN_SCROLL_LINES, UDM_SETBUDDY,
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(WPARAM)hWndBuddy, 0L);
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//Set the range. The maximum range is UINT_MAX for the scroll-lines feature
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//but the up-down control can only accept a max value of UD_MAXVAL. Therefore,
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//the scroll-lines feature will only have a setting of UINT_MAX when user
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//explicitly specifies to scroll one page at a time.
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SendDlgItemMessage (hDlg, IDC_SPIN_SCROLL_LINES, UDM_SETRANGE, 0L,
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MAKELONG(MAX_SCROLL_LINES, MIN_SCROLL_LINES));
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//Initialize appropriate scroll-line controls depending on value of
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//scroll-lines setting.
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if (nScrollLines > MAX_SCROLL_LINES)
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{
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EnableMouseWheelDlgControls(hDlg, FALSE);
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SetDlgItemInt (hDlg, IDE_BUDDY_SCROLL_LINES, SCROLL_DEFAULT, FALSE);
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CheckRadioButton (hDlg, IDRAD_SCROLL_LINES, IDRAD_SCROLL_PAGE, IDRAD_SCROLL_PAGE);
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}
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else
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{
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//Display current value in edit control
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SetDlgItemInt (hDlg, IDE_BUDDY_SCROLL_LINES, nScrollLines, FALSE);
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//Check scroll-lines or scroll-page button
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CheckRadioButton (hDlg, IDRAD_SCROLL_LINES, IDRAD_SCROLL_PAGE, IDRAD_SCROLL_LINES);
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}
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Edit_LimitText (GetDlgItem (hDlg, IDE_BUDDY_SCROLL_LINES),
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MAX_CHARS_FOR_SCROLL_LINES);
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}
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////////////////////////////////////////////////////////////////////////////
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//
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// MouseWheelDlg
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//
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////////////////////////////////////////////////////////////////////////////
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INT_PTR CALLBACK MouseWheelDlg(
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HWND hDlg,
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UINT message,
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WPARAM wParam,
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LPARAM lParam)
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{
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PMOUSEWHLSTR pMstr = NULL;
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BOOL bRet = FALSE;
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pMstr = (PMOUSEWHLSTR)GetWindowLongPtr(hDlg, DWLP_USER);
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switch (message)
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{
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case ( WM_INITDIALOG ) :
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{
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InitMouseWheelDlg(hDlg);
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break;
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}
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case ( WM_DESTROY ) :
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{
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DestroyMouseWheelDlg(pMstr);
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break;
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}
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case WM_VSCROLL:
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{
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SendMessage(GetParent(hDlg), PSM_CHANGED, (WPARAM)hDlg, 0L);
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break;
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}
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case ( WM_COMMAND ) :
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{
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switch (LOWORD(wParam))
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{
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case IDRAD_SCROLL_LINES:
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case IDRAD_SCROLL_PAGE :
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{
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UINT code = HIWORD(wParam);
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if (code == BN_CLICKED)
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{
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EnableMouseWheelDlgControls(hDlg, IsDlgButtonChecked(hDlg, IDRAD_SCROLL_LINES) );
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// Set the property
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SetScrollWheelLines(hDlg, FALSE);
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SendMessage(GetParent(hDlg), PSM_CHANGED, (WPARAM)hDlg, 0L);
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}
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break;
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}
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case IDE_BUDDY_SCROLL_LINES:
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{
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UINT code = HIWORD(wParam);
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if (code == EN_UPDATE)
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{
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BOOL fTranslated = FALSE; // numeric conversion successful
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// Retrieve number of scroll-lines from edit control.
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UINT uNumLines = GetDlgItemInt(hDlg, IDE_BUDDY_SCROLL_LINES,
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&fTranslated, FALSE);
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if (fTranslated) // valid number converted from text
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{
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if (uNumLines >= MIN_SCROLL_LINES &&
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uNumLines <= MAX_SCROLL_LINES)
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{ // spin-control range
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if (uNumLines != pMstr->nOrigScrollLines) // different value
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{
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// Set the property
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SetScrollWheelLines(hDlg, FALSE);
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SendMessage(GetParent(hDlg), PSM_CHANGED, (WPARAM)hDlg, 0L);
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}
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}
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else // value out of range
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{
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fTranslated = FALSE; // discard value
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}
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}
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if (!fTranslated && // invalid (non-numeric) data
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// or out of range numeric value
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pMstr) //and the Window has been initialized.
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{
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SetDlgItemInt (hDlg, IDE_BUDDY_SCROLL_LINES,
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pMstr->nOrigScrollLines, FALSE); // unsigned
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//MessageBeep (0xFFFFFFFF); // chastise user
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}
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}
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}
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}//switch
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break;
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} //WM_COMMAND
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case ( WM_NOTIFY ) :
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{
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ASSERT (lParam);
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switch (((NMHDR *)lParam)->code)
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{
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case ( PSN_APPLY ) :
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{
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SetScrollWheelLines(hDlg, TRUE);
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break;
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}
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case ( PSN_RESET ) :
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{
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//
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// Restore the original
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//
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SystemParametersInfo( SPI_SETWHEELSCROLLLINES,
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pMstr->nOrigScrollLines,
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NULL,
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FALSE);
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break;
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}
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default :
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{
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return (FALSE);
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}
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}
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break;
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}
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case ( WM_HELP ) : // F1
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{
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WinHelp( (HWND)((LPHELPINFO)lParam)->hItemHandle,
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HELP_FILE,
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HELP_WM_HELP,
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(DWORD_PTR)(LPTSTR)aMouseWheelHelpIds );
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break;
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}
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case ( WM_CONTEXTMENU ) : // right mouse click
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{
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WinHelp( (HWND)wParam,
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HELP_FILE,
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HELP_CONTEXTMENU,
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(DWORD_PTR)(LPTSTR)aMouseWheelHelpIds );
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break;
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}
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case ( WM_DISPLAYCHANGE ) :
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case ( WM_WININICHANGE ) :
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case ( WM_SYSCOLORCHANGE ) :
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{
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SHPropagateMessage(hDlg, message, wParam, lParam, TRUE);
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return TRUE;
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}
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default :
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{
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return (FALSE);
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}
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}
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return (TRUE);
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}
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