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Implement missing horizontal drag scrolling.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31727 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Rene Gollent
2009-07-24 02:21:20 +00:00
parent 2d350c1010
commit 79a9dc4460
1 changed files with 25 additions and 1 deletions
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src/apps/debugger/gui/team_window/SourceView.cpp
+25 -1
View File
@@ -262,6 +262,7 @@ private:
void _SelectWordAt(const SelectionPoint& point);
void _SelectLineAt(const SelectionPoint& point);
void _HandleAutoScroll();
void _ScrollHorizontal(int32 charCount);
void _ScrollByLines(int32 lineCount);
void _ScrollByPages(int32 pageCount);
void _ScrollToTop();
@@ -1382,19 +1383,42 @@ SourceView::TextView::_HandleAutoScroll(void)
uint32 buttons;
GetMouse(&point, &buttons);
float difference = 0.0;
int factor = 0;
BRect visibleRect = Frame() & fSourceView->Bounds();
if (point.y < visibleRect.top)
difference = point.y - visibleRect.top;
else if (point.y > visibleRect.bottom)
difference = point.y - visibleRect.bottom;
if (difference != 0.0) {
int factor = (int)(difference / fFontInfo->lineHeight);
factor = (int)(ceilf(difference / fFontInfo->lineHeight));
_ScrollByLines(factor);
}
difference = 0.0;
if (point.x < visibleRect.left)
difference = point.x - visibleRect.left;
else if (point.x > visibleRect.right)
difference = point.x - visibleRect.right;
if (difference != 0.0) {
factor = (int)(ceilf(difference / fCharacterWidth));
_ScrollHorizontal(factor);
}
MouseMoved(point, B_OUTSIDE_VIEW, NULL);
}
void
SourceView::TextView::_ScrollHorizontal(int32 charCount)
{
BScrollBar* horizontal = fSourceView->ScrollBar(B_HORIZONTAL);
if (horizontal == NULL)
return;
float value = horizontal->Value();
horizontal->SetValue(value + fCharacterWidth * charCount);
}
void
SourceView::TextView::_ScrollByLines(int32 lineCount)
{