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improve visual scroll behavior (arrow-up/-down hints) of the generic list (first step setup)

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svn path=/trunk/; revision=33491
This commit is contained in:
Klemens Friedl
2008-05-13 08:04:59 +00:00
parent 5fc4e8a5f9
commit 7bcc8fccde
1 changed files with 45 additions and 0 deletions
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45
reactos/base/setup/usetup/genlist.c
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@@ -238,7 +238,25 @@ DrawListEntries(PGENERIC_LIST GenericList)
ListEntry = CONTAINING_RECORD (Entry, GENERIC_LIST_ENTRY, Entry);
if (coPos.Y == GenericList->Bottom)
{
coPos.X = GenericList->Right - 4;
coPos.Y = GenericList->Top;
WriteConsoleOutputCharacterA (StdOutput,
(LPCTSTR)"(\x18)",
3,
coPos,
&Written);
coPos.X = GenericList->Right - 4;
coPos.Y = GenericList->Bottom;
WriteConsoleOutputCharacterA (StdOutput,
(LPCTSTR)"(\x19)",
3,
coPos,
&Written);
break;
}
GenericList->LastShown = Entry;
FillConsoleOutputAttribute (StdOutput,
@@ -311,12 +329,26 @@ VOID
ScrollDownGenericList (PGENERIC_LIST List)
{
PLIST_ENTRY Entry;
COORD coPos;
DWORD Written;
if (List->CurrentEntry == NULL)
return;
if (List->CurrentEntry->Entry.Flink != &List->ListHead)
{
if (List->LastShown != &List->ListHead)
{
/* Draw lower edge */
coPos.X = List->Left + 1;
coPos.Y = List->Bottom;
FillConsoleOutputCharacterA (StdOutput,
0xC4, // '-',
List->Right - List->Left - 1,
coPos,
&Written);
}
Entry = List->CurrentEntry->Entry.Flink;
if (List->LastShown == &List->CurrentEntry->Entry)
{
@@ -333,6 +365,8 @@ VOID
ScrollUpGenericList (PGENERIC_LIST List)
{
PLIST_ENTRY Entry;
COORD coPos;
DWORD Written;
if (List->CurrentEntry == NULL)
return;
@@ -348,6 +382,17 @@ ScrollUpGenericList (PGENERIC_LIST List)
List->CurrentEntry = CONTAINING_RECORD (Entry, GENERIC_LIST_ENTRY, Entry);
DrawListEntries(List);
}
else
{
/* Draw upper edge */
coPos.X = List->Left + 1;
coPos.Y = List->Top;
FillConsoleOutputCharacterA (StdOutput,
0xC4, // '-',
List->Right - List->Left - 1,
coPos,
&Written);
}
}