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allow changing the cursor position with the mouse

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svn path=/trunk/; revision=9969
This commit is contained in:
Thomas Bluemel
2004-07-02 08:46:50 +00:00
parent 9860c72592
commit 7bca32fad2
1 changed files with 65 additions and 39 deletions
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reactos/subsys/system/regedit/hexedit.c
+65 -39
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@@ -271,57 +271,47 @@ HEXEDIT_PaintLines(PHEXEDIT_DATA hed, HDC hDC, DWORD ScrollPos, DWORD First, DWO
}
static DWORD
HEXEDIT_HitRegionTest(PHEXEDIT_DATA hed, POINTS pt, POINTS *ptClient)
HEXEDIT_HitRegionTest(PHEXEDIT_DATA hed, POINTS pt)
{
WINDOWINFO wi;
int d, x;
int d;
wi.cbSize = sizeof(WINDOWINFO);
GetWindowInfo(hed->hWndSelf, &wi);
x = pt.x - wi.rcClient.left;
if(ptClient)
{
ptClient->x = x;
ptClient->y = pt.y - wi.rcClient.top;
}
if(x <= hed->LeftMargin)
if(pt.x <= hed->LeftMargin)
{
return HEHT_LEFTMARGIN;
}
x -= hed->LeftMargin;
pt.x -= hed->LeftMargin;
d = (4 * hed->CharWidth);
if(x <= d)
if(pt.x <= d)
{
return HEHT_ADDRESS;
}
x -= d;
pt.x -= d;
d = (hed->AddressSpacing * hed->CharWidth);
if(x <= d)
if(pt.x <= d)
{
return HEHT_ADDRESSSPACING;
}
x -= d;
pt.x -= d;
d = (3 * hed->ColumnsPerLine * hed->CharWidth);
if(x <= d)
if(pt.x <= d)
{
return HEHT_HEXDUMP;
}
x -= d;
pt.x -= d;
d = (hed->SplitSpacing * hed->CharWidth);
if(x <= d)
if(pt.x <= d)
{
return HEHT_HEXDUMPSPACING;
}
x -= d;
pt.x -= d;
d = (hed->ColumnsPerLine * hed->CharWidth);
if(x <= d)
if(pt.x <= d)
{
return HEHT_ASCIIDUMP;
}
@@ -330,41 +320,57 @@ HEXEDIT_HitRegionTest(PHEXEDIT_DATA hed, POINTS pt, POINTS *ptClient)
}
static DWORD
HEXEDIT_PositionFromPoint(PHEXEDIT_DATA hed, POINTS pt, DWORD *Hit)
HEXEDIT_PositionFromPoint(PHEXEDIT_DATA hed, POINTS pt, DWORD Hit, POINT *EditPos, BOOL *EditField)
{
SCROLLINFO si;
POINTS ptClient;
DWORD Line;
*Hit = HEXEDIT_HitRegionTest(hed, pt, &ptClient);
DWORD Pos, bufsize;
si.cbSize = sizeof(SCROLLINFO);
si.fMask = SIF_POS;
GetScrollInfo(hed->hWndSelf, SB_VERT, &si);
EditPos->x = 0;
if(hed->LineHeight > 0)
{
Line = min(si.nPos + (ptClient.y / hed->LineHeight), hed->nLines);
EditPos->y = min(si.nPos + (pt.y / hed->LineHeight), hed->nLines - 1);
}
else
return 0;
{
EditPos->y = si.nPos;
}
switch(*Hit)
switch(Hit)
{
case HEHT_LEFTMARGIN:
case HEHT_ADDRESS:
case HEHT_ADDRESSSPACING:
return Line * hed->ColumnsPerLine;
case HEHT_HEXDUMP:
return 0;
pt.x -= hed->LeftMargin + ((4 + hed->AddressSpacing) * hed->CharWidth);
*EditField = TRUE;
break;
case HEHT_ASCIIDUMP:
return 0;
case HEHT_RIGHTMARGIN:
return (Line + 1) * hed->ColumnsPerLine;
default:
pt.x -= hed->LeftMargin + ((4 + hed->AddressSpacing + hed->SplitSpacing + (3 * hed->ColumnsPerLine)) * hed->CharWidth);
*EditField = FALSE;
break;
}
if(pt.x > 0)
{
INT BlockWidth = (*EditField ? hed->CharWidth * 3 : hed->CharWidth);
EditPos->x = min(hed->ColumnsPerLine, pt.x / BlockWidth);
}
bufsize = (hed->hBuffer ? LocalSize(hed->hBuffer) : 0);
Pos = (EditPos->y * hed->ColumnsPerLine) + EditPos->x;
if(Pos > bufsize)
{
INT tmp = bufsize % hed->ColumnsPerLine;
Pos = bufsize;
EditPos->x = (tmp == 0 ? hed->ColumnsPerLine : tmp);
}
return Pos;
}
/*** Control specific messages ************************************************/
@@ -735,6 +741,23 @@ HEXEDIT_WM_GETDLGCODE(LPMSG Msg)
return DLGC_WANTARROWS | DLGC_WANTCHARS;
}
static LRESULT
HEXEDIT_WM_LBUTTONDOWN(PHEXEDIT_DATA hed, INT Buttons, POINTS Pt)
{
BOOL NewField;
POINT EditPos;
DWORD Hit = HEXEDIT_HitRegionTest(hed, Pt);
hed->Position = HEXEDIT_PositionFromPoint(hed, Pt, Hit, &EditPos, &NewField);
hed->EditingField = NewField;
hed->CaretCol = EditPos.x;
hed->CaretLine = EditPos.y;
HEXEDIT_MoveCaret(hed, TRUE);
return 0;
}
static BOOL
HEXEDIT_WM_KEYDOWN(PHEXEDIT_DATA hed, INT VkCode)
{
@@ -857,6 +880,9 @@ HexEditWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
case WM_SIZE:
return HEXEDIT_WM_SIZE(hed, (DWORD)wParam, LOWORD(lParam), HIWORD(lParam));
case WM_LBUTTONDOWN:
return HEXEDIT_WM_LBUTTONDOWN(hed, (INT)wParam, MAKEPOINTS(lParam));
case WM_MOUSEWHEEL:
{
UINT nScrollLines = 3;