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- fixed and simplified scroll behavior

Browse source 
svn path=/trunk/; revision=33493
This commit is contained in:
Marc Piulachs 2008-05-13 11:29:56 +00:00
parent f952d12c8d
commit 940dd048e1
2 changed files with 50 additions and 45 deletions
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92
reactos/base/setup/usetup/genlist.c
View file

@ -238,25 +238,7 @@ 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,
@ -302,6 +284,50 @@ DrawListEntries(PGENERIC_LIST GenericList)
}
}
static VOID
DrawScrollBarGenericList(PGENERIC_LIST GenericList)
{
COORD coPos;
DWORD Written;
coPos.X = GenericList->Right + 1;
coPos.Y = GenericList->Top;
if (GenericList->FirstShown != GenericList->ListHead.Flink)
{
FillConsoleOutputCharacterA (StdOutput,
'\x18',
1,
coPos,
&Written);
}
else
{
FillConsoleOutputCharacterA (StdOutput,
' ',
1,
coPos,
&Written);
}
coPos.Y = GenericList->Bottom;
if (GenericList->LastShown != GenericList->ListHead.Blink)
{
FillConsoleOutputCharacterA (StdOutput,
'\x19',
1,
coPos,
&Written);
}
else
{
FillConsoleOutputCharacterA (StdOutput,
' ',
1,
coPos,
&Written);
}
}
VOID
DrawGenericList(PGENERIC_LIST List,
@ -322,6 +348,7 @@ DrawGenericList(PGENERIC_LIST List,
return;
DrawListEntries(List);
DrawScrollBarGenericList(List);
}
@ -329,26 +356,12 @@ 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)
{
@ -357,6 +370,7 @@ ScrollDownGenericList (PGENERIC_LIST List)
}
List->CurrentEntry = CONTAINING_RECORD (Entry, GENERIC_LIST_ENTRY, Entry);
DrawListEntries(List);
DrawScrollBarGenericList(List);
}
}
@ -365,8 +379,6 @@ VOID
ScrollUpGenericList (PGENERIC_LIST List)
{
PLIST_ENTRY Entry;
COORD coPos;
DWORD Written;
if (List->CurrentEntry == NULL)
return;
@ -381,17 +393,7 @@ 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);
DrawScrollBarGenericList(List);
}
}

3
reactos/base/setup/usetup/genlist.h
View file

@ -52,6 +52,9 @@ DrawGenericList(PGENERIC_LIST List,
SHORT Right,
SHORT Bottom);
VOID
DrawScrollBarGenericLis(PGENERIC_LIST List);
VOID
ScrollDownGenericList(PGENERIC_LIST List);