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fixed treenew drag selection clipping

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git-svn-id: svn://svn.code.sf.net/p/processhacker/code@4614 21ef857c-d57f-4fe0-8362-d861dc6d29cd
This commit is contained in:
wj32
2011-09-02 03:52:20 +00:00
parent 6afee0e1be
commit 3fef6ff6b3
1 changed files with 18 additions and 13 deletions
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2.x/trunk/phlib/treenew.c
+18 -13
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@@ -5443,14 +5443,9 @@ VOID PhTnpDrawSelectionRectangle(
)
{
RECT rect;
LONG viewRight;
BOOLEAN drewWithAlpha;
viewRight = Context->ClientRect.right - (Context->VScrollVisible ? Context->VScrollWidth : 0);
rect.left = max(Rect->left, 0);
rect.top = max(Rect->top, Context->HeaderHeight);
rect.right = min(Rect->right, viewRight);
rect.bottom = min(Rect->bottom, Context->ClientRect.bottom);
rect = *Rect;
// MSDN says FrameRect/DrawFocusRect doesn't draw anything if bottom <= top or right <= left.
// That's complete rubbish. (And thanks for making me waste a whole hour on this redraw problem.)
@@ -6206,8 +6201,11 @@ VOID PhTnpDragSelect(
LONG oldHScrollPosition;
LONG newDeltaX;
LONG newDeltaY;
LONG viewLeft;
LONG viewTop;
LONG viewRight;
LONG viewBottom;
LONG temp;
RECT totalRect;
newCursorX = GET_X_LPARAM(msg.lParam);
@@ -6256,19 +6254,26 @@ VOID PhTnpDragSelect(
oldDragRect.right += newDeltaX;
oldDragRect.bottom += newDeltaY;
// Ensure that the new cursor position is within the view area.
// Ensure that the new cursor position is within the content area.
viewTop = Context->HeaderHeight;
viewRight = Context->ClientRect.right - (Context->VScrollVisible ? Context->VScrollWidth : 0);
viewLeft = Context->FixedColumnVisible ? 0 : -Context->HScrollPosition;
viewTop = Context->HeaderHeight - Context->VScrollPosition;
viewRight = Context->NormalLeft + Context->TotalViewX - Context->HScrollPosition;
viewBottom = Context->HeaderHeight + ((LONG)Context->FlatList->Count - Context->VScrollPosition) * Context->RowHeight;
if (newCursorX < 0)
newCursorX = 0;
temp = Context->ClientRect.right - (Context->VScrollVisible ? Context->VScrollWidth : 0);
viewRight = max(viewRight, temp);
temp = Context->ClientRect.bottom - ((!Context->FixedColumnVisible && Context->HScrollVisible) ? Context->HScrollHeight : 0);
viewBottom = max(viewBottom, temp);
if (newCursorX < viewLeft)
newCursorX = viewLeft;
if (newCursorX > viewRight)
newCursorX = viewRight;
if (newCursorY < viewTop)
newCursorY = viewTop;
if (newCursorY > Context->ClientRect.bottom)
newCursorY = Context->ClientRect.bottom;
if (newCursorY > viewBottom)
newCursorY = viewBottom;
// Create the new drag rectangle.