mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
359 lines
14 KiB
359 lines
14 KiB
|
|
/* Revision history:
|
|
March 92 Ported to 16/32 common code by Laurie Griffiths (LaurieGr)
|
|
*/
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
#include <windows.h>
|
|
#include <port1632.h>
|
|
#include "hack.h"
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
#define SZCODE char _based(_segname("_CODE"))
|
|
#define TIMER_ID 1
|
|
#define MS_SCROLLTIME 150
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
static HWND hwndParent;
|
|
static RECT rcUp;
|
|
static RECT rcDown;
|
|
static SZCODE szArrowClass[] = "cpArrow";
|
|
|
|
static UINT uScroll; /* gee, thanks for the helpful comment. Laurie. */
|
|
static UINT uTimer;
|
|
static BOOL fKeyDown;
|
|
|
|
/*
|
|
* fDownButton
|
|
*
|
|
* TRUE if we are dealing with the 'down arrow'. FALSE if we are dealing
|
|
* with the 'up arrow'.
|
|
*/
|
|
typedef enum tagArrowDirection {
|
|
enumArrowUp,
|
|
enumArrowDown
|
|
} ARROWDIRECTION;
|
|
static ARROWDIRECTION ArrowType;
|
|
|
|
/*
|
|
* fButton
|
|
*
|
|
* TRUE if the user pressed the left button down on the arrow window,
|
|
* as long as cursor is still over that window and the left button
|
|
* remains down.
|
|
*/
|
|
static BOOL fButton;
|
|
|
|
/*
|
|
* fRealButton
|
|
*
|
|
* TRUE if the user pressed the left button down on the arrow window,
|
|
* regardless of whether or not the cursor is still over the window, as
|
|
* long as the left button remains down.
|
|
*/
|
|
static BOOL fRealButton;
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
static void PASCAL NEAR KeyDown(
|
|
HWND hwnd,
|
|
UINT uKey)
|
|
{
|
|
DWORD dCoordinates;
|
|
|
|
if (!fKeyDown && ((uKey == VK_DOWN) || (uKey == VK_UP))) {
|
|
fKeyDown = TRUE;
|
|
hwndParent = GetParent(hwnd);
|
|
GetClientRect(hwnd, &rcUp);
|
|
rcUp.bottom = (rcUp.top + rcUp.bottom) / 2 - 1;
|
|
rcDown.top = rcUp.bottom + 1;
|
|
if (uKey == VK_DOWN)
|
|
dCoordinates = MAKELONG(0, rcDown.top);
|
|
else
|
|
dCoordinates = MAKELONG(0, rcUp.top);
|
|
SendMessage(hwnd, WM_LBUTTONDOWN, (WPARAM)0, (LPARAM)dCoordinates);
|
|
}
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
static void PASCAL NEAR KeyUp(
|
|
HWND hwnd,
|
|
UINT uKey)
|
|
{
|
|
if (fKeyDown && ((uKey == VK_DOWN) || (uKey == VK_UP))) {
|
|
fKeyDown = FALSE;
|
|
SendMessage(hwnd, WM_LBUTTONUP, (WPARAM)0, (LPARAM)0);
|
|
}
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
static void PASCAL NEAR LButtonDown(
|
|
HWND hwnd,
|
|
int iCoord)
|
|
{
|
|
if (!fRealButton) {
|
|
fButton = TRUE;
|
|
fRealButton = TRUE;
|
|
SetCapture(hwnd);
|
|
hwndParent = GetParent(hwnd);
|
|
GetClientRect(hwnd, &rcUp);
|
|
CopyRect(&rcDown, &rcUp);
|
|
rcUp.bottom = (rcUp.top + rcUp.bottom) / 2 - 1;
|
|
rcDown.top = rcUp.bottom + 1;
|
|
uScroll = (iCoord >= rcDown.top) ? SB_LINEDOWN : SB_LINEUP;
|
|
ArrowType = (uScroll == SB_LINEDOWN) ? enumArrowDown : enumArrowUp;
|
|
#if defined(WIN16)
|
|
SendMessage(hwndParent, WM_VSCROLL, (WPARAM)uScroll, MAKELPARAM(GetWindowWord(hwnd, GWW_ID), hwnd));
|
|
#else
|
|
|
|
/* The NT version of WM_VSCROLL wants the scroll position.
|
|
(Actually the book is vague, maybe it only wants it for
|
|
SB_THUMBPOSITION and SB_THUMBTRACK)
|
|
However we may be able to fudge it anyway.
|
|
So long as the message is sent to a WNDPROC ported from
|
|
DOS it will not be looking for the scroll position in
|
|
other cases. Neither book (DOS or NT) mentions stuffing
|
|
the ID in, but the line above does so.
|
|
Fortunately, nobody looks at it!
|
|
Whenever it stuffs something into the LOWORD(lParam)
|
|
on DOS we use HIWORD(wParam) on NT
|
|
*/
|
|
SendMessage( hwndParent
|
|
, WM_VSCROLL
|
|
, (WPARAM)uScroll
|
|
, (LPARAM)hwnd
|
|
);
|
|
#endif //WIN16
|
|
uTimer = (UINT)SetTimer(hwnd, TIMER_ID, MS_SCROLLTIME, NULL);
|
|
if (ArrowType == enumArrowDown)
|
|
InvalidateRect(hwnd, &rcDown, TRUE);
|
|
else
|
|
InvalidateRect(hwnd, &rcUp, TRUE);
|
|
}
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
static void PASCAL NEAR MouseMove(
|
|
HWND hwnd,
|
|
POINT pt)
|
|
{
|
|
// if they didn't left button down on us originally, ignore it;
|
|
if (fRealButton) {
|
|
BOOL fGray;
|
|
|
|
fGray = (((ArrowType == enumArrowDown) && PtInRect(&rcDown, pt)) || ((ArrowType == enumArrowUp) && PtInRect(&rcUp, pt)));
|
|
// either not over the arrow window anymore, just came on top of window;
|
|
if ((fButton && !fGray) || (!fButton && fGray)) {
|
|
fButton = !fButton;
|
|
InvalidateRect(hwnd, (ArrowType == enumArrowDown) ? &rcDown : &rcUp, TRUE);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
static void PASCAL NEAR LButtonUp(
|
|
HWND hwnd)
|
|
{
|
|
if (fButton) {
|
|
ReleaseCapture();
|
|
#if defined(WIN16)
|
|
SendMessage(hwndParent, WM_VSCROLL, (WPARAM)SB_ENDSCROLL, MAKELPARAM(GetWindowWord(hwnd, GWW_ID), hwnd));
|
|
#else
|
|
/* See comments about WM_VSCROLL earlier in file */
|
|
SendMessage( hwndParent
|
|
, WM_VSCROLL
|
|
, (WPARAM)SB_ENDSCROLL
|
|
, (LPARAM)hwnd
|
|
);
|
|
#endif //WIN16
|
|
fButton = FALSE;
|
|
if (ArrowType == enumArrowDown)
|
|
InvalidateRect(hwnd, &rcDown, TRUE);
|
|
else
|
|
InvalidateRect(hwnd, &rcUp, TRUE);
|
|
}
|
|
fRealButton = FALSE;
|
|
if (uTimer) {
|
|
KillTimer(hwnd, uTimer);
|
|
uTimer = 0;
|
|
ReleaseCapture();
|
|
}
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
static void PASCAL NEAR Paint(
|
|
HWND hwnd)
|
|
{
|
|
PAINTSTRUCT ps;
|
|
|
|
BeginPaint(hwnd, &ps);
|
|
if (IsWindowVisible(hwnd)) {
|
|
RECT rcArrow;
|
|
RECT rcHalf;
|
|
UINT uMiddle;
|
|
HBRUSH hbrOld;
|
|
int iLoop;
|
|
BOOL fCurrentButtonDown;
|
|
HPEN hpenOld;
|
|
|
|
GetClientRect(hwnd, &rcArrow);
|
|
FrameRect(ps.hdc, &rcArrow, (HBRUSH)GetStockObject(BLACK_BRUSH));
|
|
InflateRect(&rcArrow, -1, -1);
|
|
// Create the barrier between the two buttons...;
|
|
uMiddle = rcArrow.top + (rcArrow.bottom - rcArrow.top) / 2 + 1;
|
|
hbrOld = (HBRUSH)SelectObject(ps.hdc, (HGDIOBJ)CreateSolidBrush(COLOR_WINDOWFRAME));
|
|
PatBlt(ps.hdc, 0, rcArrow.bottom / 2 - 1, rcArrow.right, 2, PATCOPY);
|
|
DeleteObject(SelectObject(ps.hdc, (HGDIOBJ)hbrOld));
|
|
// Draw the shadows and the face of the button...;
|
|
for (iLoop = enumArrowUp; iLoop <= enumArrowDown; iLoop++) {
|
|
POINT ptArrow[3];
|
|
DWORD dwColor;
|
|
|
|
fCurrentButtonDown = (fButton && (iLoop == ArrowType));
|
|
// get the rectangle for the button half we're dealing with;
|
|
rcHalf.top = (iLoop == enumArrowDown) ? uMiddle : rcArrow.top;
|
|
rcHalf.bottom = (iLoop == enumArrowDown) ? rcArrow.bottom : uMiddle - 2;
|
|
rcHalf.right = rcArrow.right;
|
|
rcHalf.left = rcArrow.left;
|
|
// draw the highlight lines;
|
|
if (fCurrentButtonDown)
|
|
dwColor = GetSysColor(COLOR_BTNSHADOW);
|
|
else
|
|
dwColor = RGB(255, 255, 255);
|
|
hpenOld = SelectObject(ps.hdc, (HGDIOBJ)CreatePen(PS_SOLID, 1, dwColor));
|
|
MMoveTo(ps.hdc, rcHalf.right - 1, rcHalf.top);
|
|
LineTo(ps.hdc, rcHalf.left, rcHalf.top);
|
|
LineTo(ps.hdc, rcHalf.left, rcHalf.bottom - 1 + fCurrentButtonDown);
|
|
DeleteObject(SelectObject(ps.hdc, (HGDIOBJ)hpenOld));
|
|
if (!fCurrentButtonDown) {
|
|
// draw the shadow lines;
|
|
hpenOld = SelectObject(ps.hdc, (HGDIOBJ)CreatePen(PS_SOLID, 1, GetSysColor(COLOR_BTNSHADOW)));
|
|
MMoveTo(ps.hdc, rcHalf.right - 1, rcHalf.top);
|
|
LineTo(ps.hdc, rcHalf.right - 1, rcHalf.bottom - 1);
|
|
LineTo(ps.hdc, rcHalf.left - 1, rcHalf.bottom - 1);
|
|
MMoveTo(ps.hdc, rcHalf.right - 2, rcHalf.top + 1);
|
|
LineTo(ps.hdc, rcHalf.right - 2, rcHalf.bottom - 2);
|
|
LineTo(ps.hdc, rcHalf.left, rcHalf.bottom - 2);
|
|
DeleteObject(SelectObject(ps.hdc, hpenOld));
|
|
}
|
|
// calculate the arrow triangle coordinates;
|
|
ptArrow[0].x = rcHalf.left + (rcHalf.right - rcHalf.left) / 2 + fCurrentButtonDown;
|
|
ptArrow[0].y = rcHalf.top + 2 + fCurrentButtonDown;
|
|
ptArrow[1].y = ptArrow[2].y = rcHalf.bottom - 4 + fCurrentButtonDown;
|
|
if (ptArrow[0].y > ptArrow[1].y)
|
|
ptArrow[1].y = ptArrow[2].y = ptArrow[0].y;
|
|
ptArrow[1].x = ptArrow[0].x - (ptArrow[1].y - ptArrow[0].y);
|
|
ptArrow[2].x = ptArrow[0].x + (ptArrow[1].y - ptArrow[0].y);
|
|
// flip over if we're drawing bottom button;
|
|
if (iLoop == enumArrowDown) {
|
|
ptArrow[2].y = ptArrow[0].y;
|
|
ptArrow[0].y = ptArrow[1].y;
|
|
ptArrow[1].y = ptArrow[2].y;
|
|
}
|
|
if (IsWindowEnabled(hwnd))
|
|
dwColor = GetSysColor(COLOR_BTNTEXT);
|
|
else
|
|
dwColor = GetSysColor(COLOR_GRAYTEXT);
|
|
// draw the triangle;
|
|
hbrOld = SelectObject(ps.hdc, (HGDIOBJ)CreateSolidBrush(dwColor));
|
|
hpenOld = SelectObject(ps.hdc, CreatePen(PS_SOLID, 1, dwColor));
|
|
Polygon(ps.hdc, ptArrow, 3);
|
|
DeleteObject(SelectObject(ps.hdc, (HGDIOBJ)hbrOld));
|
|
DeleteObject(SelectObject(ps.hdc, (HGDIOBJ)hpenOld));
|
|
}
|
|
}
|
|
EndPaint(hwnd, &ps);
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
LRESULT PASCAL FAR _loadds ArrowControlProc(
|
|
HWND hwndArrow,
|
|
UINT wMsg,
|
|
WPARAM wParam,
|
|
LPARAM lParam)
|
|
{
|
|
switch (wMsg) {
|
|
case WM_SETFOCUS:
|
|
case WM_KILLFOCUS:
|
|
case WM_ENABLE:
|
|
case WM_SYSCOLORCHANGE:
|
|
InvalidateRect(hwndArrow, NULL, TRUE);
|
|
UpdateWindow(hwndArrow);
|
|
break;
|
|
case WM_GETDLGCODE:
|
|
return (LRESULT)DLGC_WANTARROWS; // | DLGC_UNDEFPUSHBUTTON;
|
|
case WM_KEYDOWN:
|
|
KeyDown(hwndArrow, (UINT)wParam);
|
|
break;
|
|
case WM_KEYUP:
|
|
KeyUp(hwndArrow, (UINT)wParam);
|
|
break;
|
|
case WM_LBUTTONDOWN:
|
|
LButtonDown(hwndArrow, HIWORD(lParam)); // y coord
|
|
break;
|
|
case WM_MOUSEMOVE:
|
|
{ POINT pt;
|
|
LONG2POINT(lParam,pt);
|
|
MouseMove(hwndArrow, pt);
|
|
}
|
|
break;
|
|
case WM_LBUTTONUP:
|
|
LButtonUp(hwndArrow);
|
|
break;
|
|
case WM_TIMER:
|
|
if (fButton)
|
|
#if defined(WIN16)
|
|
SendMessage(hwndParent, WM_VSCROLL, (WPARAM)uScroll, MAKELPARAM(GetWindowWord(hwndArrow, GWW_ID), hwndArrow));
|
|
#else
|
|
/* See comments about WM_VSCROLL earlier in file */
|
|
SendMessage( hwndParent
|
|
, WM_VSCROLL
|
|
, (WPARAM)uScroll
|
|
, (LPARAM)hwndArrow
|
|
);
|
|
#endif //WIN16
|
|
break;
|
|
case WM_PAINT:
|
|
Paint(hwndArrow);
|
|
break;
|
|
default:
|
|
return DefWindowProc(hwndArrow, wMsg, wParam, lParam);
|
|
}
|
|
return (LRESULT)0;
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
BOOL PASCAL FAR RegisterArrowClass(
|
|
HINSTANCE hInstance)
|
|
{
|
|
WNDCLASS wcArrow;
|
|
|
|
wcArrow.lpszClassName = szArrowClass;
|
|
wcArrow.hInstance = hInstance;
|
|
wcArrow.lpfnWndProc = ArrowControlProc;
|
|
wcArrow.hCursor = LoadCursor(NULL, IDC_ARROW);
|
|
wcArrow.hIcon = NULL;
|
|
wcArrow.lpszMenuName = NULL;
|
|
wcArrow.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
|
|
wcArrow.style = CS_HREDRAW | CS_VREDRAW;
|
|
wcArrow.cbClsExtra = 0;
|
|
wcArrow.cbWndExtra = 0;
|
|
return RegisterClass((LPWNDCLASS)&wcArrow);
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
void PASCAL FAR UnregisterArrowClass(
|
|
HINSTANCE hInstance)
|
|
{
|
|
UnregisterClass(szArrowClass, hInstance);
|
|
}
|