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riched20: Implement EM_SCROLL and its tests.

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This commit is contained in:
Andrew de los Reyes 2006-02-24 23:26:42 -08:00 committed by Alexandre Julliard
parent 6979719a90
commit cd024942af
2 changed files with 158 additions and 5 deletions
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21
dlls/riched20/editor.c
View File

@ -1313,7 +1313,6 @@ LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lP
UNSUPPORTED_MSG(EM_GETWORDBREAKPROCEX)
UNSUPPORTED_MSG(EM_LIMITTEXT) /* also known as EM_SETLIMITTEXT */
UNSUPPORTED_MSG(EM_PASTESPECIAL)
UNSUPPORTED_MSG(EM_SCROLL)
UNSUPPORTED_MSG(EM_SELECTIONTYPE)
UNSUPPORTED_MSG(EM_SETBIDIOPTIONS)
UNSUPPORTED_MSG(EM_SETEDITSTYLE)
@ -2132,21 +2131,29 @@ LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lP
}
return 0;
}
case EM_SCROLL: /* fall through */
case WM_VSCROLL:
{
int nEnd;
int nPos = editor->nScrollPosY;
int origNPos = nPos;
int lineHeight = 24;
si.cbSize = sizeof(SCROLLINFO);
si.fMask = SIF_PAGE|SIF_POS|SIF_RANGE|SIF_TRACKPOS;
GetScrollInfo(hWnd, SB_VERT, &si);
if (editor && editor->pBuffer && editor->pBuffer->pDefaultStyle)
lineHeight = editor->pBuffer->pDefaultStyle->tm.tmHeight;
if (lineHeight <= 0) lineHeight = 24;
switch(LOWORD(wParam)) {
case SB_LINEUP:
nPos -= 24; /* FIXME follow the original */
nPos -= lineHeight;
if (nPos<0) nPos = 0;
break;
case SB_LINEDOWN:
{
int nEnd = editor->nTotalLength - editor->sizeWindow.cy;
nPos += 24; /* FIXME follow the original */
nEnd = editor->nTotalLength - editor->sizeWindow.cy;
if (nEnd < 0) nEnd = 0;
nPos += lineHeight;
if (nPos>=nEnd) nPos = nEnd;
break;
}
@ -2155,8 +2162,10 @@ LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lP
if (nPos<0) nPos = 0;
break;
case SB_PAGEDOWN:
nEnd = editor->nTotalLength - editor->sizeWindow.cy;
if (nEnd < 0) nEnd = 0;
nPos += editor->sizeWindow.cy;
if (nPos>=editor->nTotalLength) nPos = editor->nTotalLength-1;
if (nPos>=nEnd) nPos = nEnd;
break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
@ -2173,6 +2182,8 @@ LRESULT WINAPI RichEditANSIWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lP
UpdateWindow(hWnd);
}
}
if (msg == EM_SCROLL)
return 0x00010000 | (((nPos - origNPos)/lineHeight) & 0xffff);
break;
}
case WM_MOUSEWHEEL:

142
dlls/riched20/tests/editor.c
View File

@ -536,6 +536,147 @@ static void test_EM_SETOPTIONS()
DestroyWindow(hwndRichEdit);
}
static void test_EM_SCROLL()
{
int i, j;
int r; /* return value */
int expr; /* expected return value */
HWND hwndRichEdit = new_richedit(NULL);
int y_before, y_after; /* units of lines of text */
/* test a richedit box containing a single line of text */
SendMessage(hwndRichEdit, WM_SETTEXT, 0, (LPARAM) "a");/* one line of text */
expr = 0x00010000;
for (i = 0; i < 4; i++) {
int cmd;
switch (i) {
case 0: cmd = SB_PAGEDOWN; break;
case 1: cmd = SB_PAGEUP; break;
case 2: cmd = SB_LINEDOWN; break;
case 3: cmd = SB_LINEUP; break;
}
r = SendMessage(hwndRichEdit, EM_SCROLL, cmd, 0);
y_after = SendMessage(hwndRichEdit, EM_GETFIRSTVISIBLELINE, 0, 0);
ok(expr == r, "EM_SCROLL improper return value returned (i == %d). "
"Got 0x%08x, expected 0x%08x\n", i, r, expr);
ok(y_after == 0, "EM_SCROLL improper scroll. scrolled to line %d, not 1 "
"(i == %d)\n", y_after, i);
}
/*
* test a richedit box that will scroll. There are two general
* cases: the case without any long lines and the case with a long
* line.
*/
for (i = 0; i < 2; i++) { /* iterate through different bodies of text */
if (i == 0)
SendMessage(hwndRichEdit, WM_SETTEXT, 0, (LPARAM) "a\nb\nc\nd\ne");
else
SendMessage(hwndRichEdit, WM_SETTEXT, 0, (LPARAM)
"a LONG LINE LONG LINE LONG LINE LONG LINE LONG LINE "
"LONG LINE LONG LINE LONG LINE LONG LINE LONG LINE "
"LONG LINE \nb\nc\nd\ne");
for (j = 0; j < 12; j++) /* reset scrol position to top */
SendMessage(hwndRichEdit, EM_SCROLL, SB_PAGEUP, 0);
/* get first visible line */
y_before = SendMessage(hwndRichEdit, EM_GETFIRSTVISIBLELINE, 0, 0);
r = SendMessage(hwndRichEdit, EM_SCROLL, SB_PAGEDOWN, 0); /* page down */
/* get new current first visible line */
y_after = SendMessage(hwndRichEdit, EM_GETFIRSTVISIBLELINE, 0, 0);
ok(((r & 0xffffff00) == 0x00010000) &&
((r & 0x000000ff) != 0x00000000),
"EM_SCROLL page down didn't scroll by a small positive number of "
"lines (r == 0x%08x)\n", r);
ok(y_after > y_before, "EM_SCROLL page down not functioning "
"(line %d scrolled to line %d\n", y_before, y_after);
y_before = y_after;
r = SendMessage(hwndRichEdit, EM_SCROLL, SB_PAGEUP, 0); /* page up */
y_after = SendMessage(hwndRichEdit, EM_GETFIRSTVISIBLELINE, 0, 0);
ok(((r & 0xffffff00) == 0x0001ff00),
"EM_SCROLL page up didn't scroll by a small negative number of lines "
"(r == 0x%08x)\n", r);
ok(y_after < y_before, "EM_SCROLL page up not functioning (line "
"%d scrolled to line %d\n", y_before, y_after);
y_before = y_after;
r = SendMessage(hwndRichEdit, EM_SCROLL, SB_LINEDOWN, 0); /* line down */
y_after = SendMessage(hwndRichEdit, EM_GETFIRSTVISIBLELINE, 0, 0);
ok(r == 0x00010001, "EM_SCROLL line down didn't scroll by one line "
"(r == 0x%08x)\n", r);
ok(y_after -1 == y_before, "EM_SCROLL line down didn't go down by "
"1 line (%d scrolled to %d)\n", y_before, y_after);
y_before = y_after;
r = SendMessage(hwndRichEdit, EM_SCROLL, SB_LINEUP, 0); /* line up */
y_after = SendMessage(hwndRichEdit, EM_GETFIRSTVISIBLELINE, 0, 0);
ok(r == 0x0001ffff, "EM_SCROLL line up didn't scroll by one line "
"(r == 0x%08x)\n", r);
ok(y_after +1 == y_before, "EM_SCROLL line up didn't go up by 1 "
"line (%d scrolled to %d)\n", y_before, y_after);
y_before = y_after;
r = SendMessage(hwndRichEdit, EM_SCROLL,
SB_LINEUP, 0); /* lineup beyond top */
y_after = SendMessage(hwndRichEdit, EM_GETFIRSTVISIBLELINE, 0, 0);
ok(r == 0x00010000,
"EM_SCROLL line up returned indicating movement (0x%08x)\n", r);
ok(y_before == y_after,
"EM_SCROLL line up beyond top worked (%d)\n", y_after);
y_before = y_after;
r = SendMessage(hwndRichEdit, EM_SCROLL,
SB_PAGEUP, 0);/*page up beyond top */
y_after = SendMessage(hwndRichEdit, EM_GETFIRSTVISIBLELINE, 0, 0);
ok(r == 0x00010000,
"EM_SCROLL page up returned indicating movement (0x%08x)\n", r);
ok(y_before == y_after,
"EM_SCROLL page up beyond top worked (%d)\n", y_after);
for (j = 0; j < 12; j++) /* page down all the way to the bottom */
SendMessage(hwndRichEdit, EM_SCROLL, SB_PAGEDOWN, 0);
y_before = SendMessage(hwndRichEdit, EM_GETFIRSTVISIBLELINE, 0, 0);
r = SendMessage(hwndRichEdit, EM_SCROLL,
SB_PAGEDOWN, 0); /* page down beyond bot */
y_after = SendMessage(hwndRichEdit, EM_GETFIRSTVISIBLELINE, 0, 0);
ok(r == 0x00010000,
"EM_SCROLL page down returned indicating movement (0x%08x)\n", r);
ok(y_before == y_after,
"EM_SCROLL page down beyond bottom worked (%d -> %d)\n",
y_before, y_after);
y_before = SendMessage(hwndRichEdit, EM_GETFIRSTVISIBLELINE, 0, 0);
SendMessage(hwndRichEdit, EM_SCROLL,
SB_LINEDOWN, 0); /* line down beyond bot */
y_after = SendMessage(hwndRichEdit, EM_GETFIRSTVISIBLELINE, 0, 0);
ok(r == 0x00010000,
"EM_SCROLL line down returned indicating movement (0x%08x)\n", r);
ok(y_before == y_after,
"EM_SCROLL line down beyond bottom worked (%d -> %d)\n",
y_before, y_after);
}
DestroyWindow(hwndRichEdit);
}
START_TEST( editor )
{
MSG msg;
@ -548,6 +689,7 @@ START_TEST( editor )
test_EM_FINDTEXT();
test_EM_SCROLLCARET();
test_EM_SCROLL();
test_EM_SETTEXTMODE();
test_TM_PLAINTEXT();
test_EM_SETOPTIONS();